Sdraw...

git-svn-id: svn://ultimatepp.org/upp/trunk@733 f0d560ea-af0d-0410-9eb7-867de7ffcac7

uppdev/plugin/cairo/Cairo.h

@@ -0,0 +1,223 @@
+#ifndef _plugin_cairo_Cairo_h_
+#define _plugin_cairo_Cairo_h_
+
+#include <Core/Core.h>
+#include <Draw/Draw.h>
+
+#include "lib/cairo.h"
+#include "lib/cairo-svg.h"
+#include "lib/cairo-pdf.h"
+#include "CairoPattern.h"
+
+NAMESPACE_UPP
+
+class Cairo : public NoCopy
+{
+private:
+	cairo_surface_t *_surface;
+	cairo_t *_context;
+	int _width, _height;
+	
+	void DestroySurface()
+	{
+		if (_context != NULL)
+		{
+			cairo_status_t status = cairo_status(_context);
+			ASSERT_(status == CAIRO_STATUS_SUCCESS, cairo_status_to_string(status));
+			cairo_destroy(_context);
+		}
+		
+		if (_surface != NULL)
+			cairo_surface_destroy(_surface);
+	}
+	
+public:
+	Cairo()
+		: _surface(NULL),
+		  _context(NULL)
+	{
+	}
+	
+	~Cairo()
+	{
+		DestroySurface();
+	}
+	
+	int GetWidth() { return _width; }
+	int GetHeight() { return _height; }
+	
+	void SetSurface(cairo_surface_t *surface, int width, int height);
+	void SetSurface(ImageBuffer &img);
+	void CreateSvgSurface(String const &filename, double widthInPoints = 595, double heightInPoints = 841); // DIN-A4 default size
+	void CreatePdfSurface(String const &filename, double widthInPoints = 595, double heightInPoints = 841); // DIN-A4 default size
+	
+	cairo_t *GetContext()
+	{
+		return _context;
+	}
+	
+	cairo_surface_t *GetSurface()
+	{
+		return _surface;
+	}
+	
+	bool HasContext()
+	{
+		return _context != NULL;
+	}
+	
+	void Clear(Color const &color)
+	{
+		SetSourceRGB(color);
+		Paint();
+	}
+	
+	/*******************************************************************************************************/
+	/************** TODO: remove the following 2 methods!!! Replace them with a dedicated font system ******/
+	/*******************************************************************************************************/
+	void DrawText(double x, double y, char const * const text, double size, Color ink)
+	{
+		cairo_t *context = GetContext();
+		ASSERT(context != NULL);
+		
+		cairo_set_font_size(context, size);
+		
+		Save();
+		
+		Translate(x, y + size);
+		
+		SetSourceRGB(ink);
+		cairo_show_text(context, text);
+		
+		NewPath();
+		
+		Restore();
+	}
+	
+	void DrawTextCenter(double x, double y, double width, char const * const text, double size, Color ink)
+	{
+		cairo_t *context = GetContext();
+		ASSERT(context != NULL);
+		
+		cairo_set_font_size(context, size);
+		
+		// measure string
+		cairo_text_extents_t extents;
+		cairo_text_extents(context, text, &extents);
+		
+		double startX = x + (width / 2.0) - (extents.width / 2.0);
+		
+		Save();
+		
+		Translate(startX, y + size);
+		
+		SetSourceRGB(ink);
+		cairo_show_text(context, text);
+		
+		NewPath();
+		
+		Restore();
+	}
+	
+	/*
+	 * Cairo cairo_t methods
+	 * http://cairographics.org/manual/cairo-cairo-t.html
+	 */
+	void Save();
+	void Restore();
+	void PushGroup();
+	//cairo_push_group_with_content
+	void PopGroup();
+	void PopGroupToSource();
+	//cairo_get_group_target
+	void SetSourceRGB(double r, double g, double b);
+	void SetSourceRGB(Color const &color);
+	void SetSourceRGBA(double r, double g, double b, double a);
+	void SetSource(CairoPattern &pattern);
+	//cairo_set_source_surface
+	//cairo_get_source
+	void SetAntialias(cairo_antialias_t antialias);
+	cairo_antialias_t GetAntialias();
+	void SetDash(double const * dashes, int numDashes, double offset);
+	//cairo_get_dash_count
+	//cairo_get_dash
+	void SetFillRule(cairo_fill_rule_t fillRule);
+	cairo_fill_rule_t GetFillRule();
+	void SetLineCap(cairo_line_cap_t lineCap);
+	cairo_line_cap_t GetLineCap();
+	void SetLineJoin(cairo_line_join_t lineJoin);
+	cairo_line_join_t GetLineJoin();
+	void SetLineWidth(double width);
+	double GetLineWidth();
+	void SetMiterLimit(double limit);
+	double GetMiterLimit();
+	void SetOperator(cairo_operator_t op);
+	cairo_operator_t GetOperator();
+	void SetTolerance(double tolerance);
+	double GetTolerance();
+	void Clip(bool preserve = false);
+	//cairo_clip_extents
+	//cairo_reset_clip
+	//cairo_rectangle_list_destroy
+	//cairo_copy_clip_rectangle_list
+	void Fill(bool preserve = false);
+	//cairo_fill_extents
+	//cairo_in_fill
+	//cairo_mask
+	//cairo_mask_surface
+	void Paint(double alpha = 1.0);
+	void Stroke(bool preserve = false);
+	//cairo_stroke_extents
+	//cairo_in_stroke
+	//cairo_copy_page
+	//cairo_show_page
+	//cairo_get_reference_count         probably not needed
+	//cairo_set_user_data          probably not needed
+	//cairo_get_user_data         probably not needed
+	
+	/*
+	 * Cairo transformation methods
+	 * http://cairographics.org/manual/cairo-Transformations.html
+	 */
+	void Translate(double tx, double ty);
+	void Scale(double sx, double sy);
+	void Rotate(double angle);
+	//cairo_transform
+	//cairo_set_matrix
+	//cairo_get_matrix
+	void IdentityMatrix();
+	//cairo_user_to_device
+	//cairo_user_to_device_distance
+	//cairo_device_to_user
+	//cairo_device_to_user_distance
+	
+	/*
+	 * Cairo path methods
+	 * http://cairographics.org/manual/cairo-Paths.html
+	 */
+	//cairo_copy_path
+	//cairo_copy_path_flat
+	//cairo_path_destroy
+	//cairo_append_path
+	//cairo_has_current_point
+	Pointf GetCurrentPoint();
+	void NewPath();
+	//cairo_new_sub_path
+	void ClosePath();
+	void Arc(double xc, double yc, double radius, double angle1, double angle2);
+	//cairo_arc_negative 
+	void CurveTo(double x1, double y1, double x2, double y2, double x3, double y3);
+	void LineTo(double x, double y);
+	void MoveTo(double x, double y);
+	void Rectangle(double x, double y, double width, double height);
+	//cairo_glyph_path
+	//cairo_text_path
+	void RelCurveTo(double x1, double y1, double x2, double y2, double x3, double y3);
+	void RelLineTo(double x, double y);
+	void RelMoveTo(double x, double y);
+	//cairo_path_extents
+};
+
+END_UPP_NAMESPACE
+
+#endif

uppdev/plugin/cairo/CairoCtrl.h

@@ -0,0 +1,264 @@
+#ifndef _plugin_cairo_CairoCtrl_h_
+#define _plugin_cairo_CairoCtrl_h_
+
+#include <CtrlLib/CtrlLib.h>
+#include "Cairo.h"
+#include "CairoDraw.h"
+
+NAMESPACE_UPP
+
+#ifdef PLATFORM_WIN32
+
+#include "lib/cairo-win32.h"
+
+class CairoCtrl : public DHCtrl 
+{
+private:
+	Drawing const *_drawing;
+	Color const *_backgroundColor;
+	HDC _hDC;
+	Cairo _cairo;
+	bool _doubleBuffering;
+	
+	void DoPaint()
+	{
+		if (!_cairo.HasContext())
+			return;
+		
+		CairoDraw draw(_cairo);
+		
+		if (_drawing == NULL)
+		{
+			if (_backgroundColor != NULL)
+				_cairo.Clear(*_backgroundColor);
+			
+			CairoPaint(_cairo);
+			UppPaint(draw);
+		}
+		else
+		{
+			_cairo.Clear(_backgroundColor == NULL ? White() : *_backgroundColor);
+			
+			Size drawingSize = _drawing->GetSize();
+			Size size = GetSize();
+			Size drawSize = size;
+			int dx = 0, dy = 0;
+			
+			if(drawingSize.cy * size.cx < size.cy * drawingSize.cx) 
+			{
+				drawSize.cy = drawingSize.cy * size.cx / drawingSize.cx;
+				dy = (size.cy - drawSize.cy) / 2;
+			}
+			else 
+			{
+				drawSize.cx = drawingSize.cx * size.cy / drawingSize.cy;
+				dx = (size.cx - drawSize.cx) / 2;
+			}
+			
+			draw.Clipoff(dx, dy, drawSize.cx, drawSize.cy);
+			draw.DrawDrawing(drawSize, *_drawing);
+			draw.End();
+		}
+		
+		if (_doubleBuffering)
+			BitBlt(_hDC, Point(0, 0), cairo_win32_surface_get_dc(_cairo.GetSurface()), GetSize());
+	}
+
+protected:
+	// Called on paint events
+	virtual void CairoPaint(Cairo &cairo) { WhenCairoPaint(cairo); }
+	virtual void UppPaint(Draw &draw) { WhenPaint(draw); }
+
+public:
+	Callback1<Cairo &> WhenCairoPaint;
+	Callback1<Draw &> WhenPaint;
+
+	CairoCtrl()
+		: _drawing(NULL), 
+		  _hDC(NULL), 
+		  _doubleBuffering(true), 
+		  _backgroundColor(NULL)
+	{}
+	
+	~CairoCtrl()
+	{
+		if (_hDC != NULL)
+			ReleaseDC(GetHWND(), _hDC);
+		
+		if (_backgroundColor != NULL)
+			delete _backgroundColor;
+	}
+	
+	void Set(Drawing const * const drawing) 
+	{
+		_drawing = drawing;
+		Refresh();
+	}
+	
+	void Background(Color const &color)
+	{
+		if (_backgroundColor != NULL)
+			delete _backgroundColor;
+		
+		_backgroundColor = new Color(color);
+	}
+	
+	void SetDoubleBuffering(bool buffer = true)
+	{
+		_doubleBuffering = buffer;
+		State(LAYOUTPOS);
+	}
+	
+	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
+	{
+		if(message == WM_PAINT) 
+		{
+			PAINTSTRUCT ps;
+			BeginPaint(GetHWND(), &ps);
+			DoPaint();
+			EndPaint(GetHWND(), &ps);
+			return 0;
+		}
+		else if(message == WM_ERASEBKGND)
+			return 1;
+		
+		return DHCtrl::WindowProc(message, wParam, lParam);
+	}
+	
+	virtual void State(int reason)
+	{
+		DHCtrl::State(reason);
+		
+		if (reason == OPEN || reason == LAYOUTPOS)
+		{
+			HWND hwnd = GetHWND();
+			if (hwnd != NULL)
+				_hDC = ::GetDC(hwnd);
+			
+			if (_hDC != NULL)
+			{
+				if (_doubleBuffering)
+					_cairo.SetSurface(cairo_win32_surface_create_with_ddb(_hDC, CAIRO_FORMAT_RGB24, GetSize().cx, GetSize().cy), GetSize().cx, GetSize().cy);
+				else
+					_cairo.SetSurface(cairo_win32_surface_create(_hDC), GetSize().cx, GetSize().cy);
+			}
+		}
+		else if (reason == CLOSE && _hDC != NULL)
+		{
+			ReleaseDC(GetHWND(), _hDC);
+			_hDC = NULL;
+		}
+	}
+};
+
+#else
+
+class CairoCtrl : public Ctrl
+{
+private:
+	Drawing const *_drawing;
+	Color const *_backgroundColor;
+	Cairo _cairo;
+	ImageBuffer _buffer;
+	
+	void DoPaint()
+	{
+		if (!_cairo.HasContext())
+			return;
+		
+		CairoDraw draw(_cairo);
+		
+		if (_drawing == NULL)
+		{
+			if (_backgroundColor != NULL)
+				_cairo.Clear(*_backgroundColor);
+			
+			CairoPaint(_cairo);
+			UppPaint(draw);
+		}
+		else
+		{
+			_cairo.Clear(_backgroundColor == NULL ? White() : *_backgroundColor);
+			
+			Size drawingSize = _drawing->GetSize();
+			Size size = GetSize();
+			Size drawSize = size;
+			int dx = 0, dy = 0;
+			
+			if(drawingSize.cy * size.cx < size.cy * drawingSize.cx) 
+			{
+				drawSize.cy = drawingSize.cy * size.cx / drawingSize.cx;
+				dy = (size.cy - drawSize.cy) / 2;
+			}
+			else 
+			{
+				drawSize.cx = drawingSize.cx * size.cy / drawingSize.cy;
+				dx = (size.cx - drawSize.cx) / 2;
+			}
+			
+			draw.Clipoff(dx, dy, drawSize.cx, drawSize.cy);
+			draw.DrawDrawing(drawSize, *_drawing);
+			draw.End();
+		}
+	}
+	
+	virtual void Paint(Draw& draw)
+	{
+		if (GetSize() != _buffer.GetSize())
+		{
+			_buffer.Create(GetSize());
+			_cairo.SetSurface(_buffer);
+		}
+		
+		if (_buffer.IsEmpty())
+			return;
+		
+		DoPaint();
+		
+		Image i = _buffer;
+		draw.DrawImage(0, 0, i);
+		_buffer = i;
+	}
+
+protected:
+	// Called on paint events
+	virtual void CairoPaint(Cairo &cairo) { WhenCairoPaint(cairo); }
+	virtual void UppPaint(Draw &draw) { WhenPaint(draw); }
+
+public:
+	Callback1<Cairo &> WhenCairoPaint;
+	Callback1<Draw &> WhenPaint;
+
+	CairoCtrl()
+		: _drawing(NULL), 
+		  _backgroundColor(NULL)
+	{}
+	
+	~CairoCtrl()
+	{
+		if (_backgroundColor != NULL)
+			delete _backgroundColor;
+	}
+	
+	void Set(Drawing const * const drawing) 
+	{
+		_drawing = drawing;
+		Refresh();
+	}
+	
+	void Background(Color const &color)
+	{
+		if (_backgroundColor != NULL)
+			delete _backgroundColor;
+		
+		_backgroundColor = new Color(color);
+	}
+	
+	void SetDoubleBuffering(bool buffer = true) {}
+};
+
+#endif
+
+END_UPP_NAMESPACE
+
+#endif

uppdev/plugin/cairo/CairoDraw.cpp

@@ -0,0 +1,259 @@
+#include "CairoDraw.h"
+
+NAMESPACE_UPP
+
+void CairoDraw::BeginOp()
+{
+	_cairo.Save();
+	
+	_offsetStack.Add(actual_offset);
+	_clipStack.Add(_actualClip);
+}
+
+void CairoDraw::EndOp()
+{
+	_cairo.Restore();
+	
+	actual_offset = _offsetStack.Pop();
+	_actualClip = _clipStack.Pop();
+}
+
+void CairoDraw::OffsetOp(Point p)
+{
+	Begin();
+	
+	_cairo.Translate(p.x, p.y);
+	
+	actual_offset += p;
+	_actualClip -= p;
+}
+
+bool CairoDraw::ClipOp(const Rect& r)
+{
+	Begin();
+	
+	_cairo.Rectangle(r.left, r.top, r.Width(), r.Height());
+	_cairo.Clip();
+	
+	_actualClip &= r;
+	return !_actualClip.IsEmpty();
+}
+
+bool CairoDraw::ClipoffOp(const Rect& r)
+{
+	Begin();
+	
+	_cairo.Translate(r.left, r.top);
+	
+	_cairo.Rectangle(0, 0, r.Width(), r.Height());
+	_cairo.Clip();
+	
+	actual_offset += r.TopLeft();
+	_actualClip &= r;
+	_actualClip -= r.TopLeft();
+	return !_actualClip.IsEmpty();
+}
+
+bool CairoDraw::ExcludeClipOp(const Rect& r)
+{
+	_cairo.MoveTo(0, 0);
+	_cairo.LineTo(_cairo.GetWidth(), 0);
+	_cairo.LineTo(_cairo.GetWidth(), _cairo.GetHeight());
+	_cairo.LineTo(0, _cairo.GetHeight());
+	
+	_cairo.LineTo(0, r.bottom);
+	_cairo.LineTo(r.right, r.bottom);
+	_cairo.LineTo(r.right, r.top);
+	_cairo.LineTo(r.left, r.top);
+	_cairo.LineTo(r.left, r.bottom);
+	
+	_cairo.LineTo(0, r.bottom);
+	_cairo.ClosePath();
+	
+	_cairo.Clip();
+	
+	return !_actualClip.IsEmpty();
+}
+
+bool CairoDraw::IntersectClipOp(const Rect& r)
+{
+	_cairo.Rectangle(r.left, r.top, r.Width(), r.Height());
+	_cairo.Clip();
+	
+	_actualClip &= r;
+	return !_actualClip.IsEmpty();
+}
+
+Rect CairoDraw::GetClipOp() const
+{
+	return _actualClip;
+}
+
+bool CairoDraw::IsPaintingOp(const Rect& r) const
+{
+	return true;
+}
+
+
+void CairoDraw::DrawRectOp(int x, int y, int cx, int cy, Color color)
+{
+	_cairo.Rectangle(x, y, cx, cy);
+	_cairo.SetSourceRGB(color);
+	_cairo.Fill();
+}
+
+void CairoDraw::DrawImageOp(int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color)
+{
+	_cairo.Save();
+	
+	cairo_t *context = _cairo.GetContext();
+	ASSERT(context != NULL);
+	
+	cairo_surface_t *imgSurface = cairo_image_surface_create_for_data((unsigned char *)&(img[0]->b),
+																		CAIRO_FORMAT_ARGB32,
+																		img.GetWidth(),
+																		img.GetHeight(),
+																		img.GetWidth() * 4);
+	
+	_cairo.Translate(x, y);
+	_cairo.Scale((double)cx / img.GetWidth(), (double)cy / img.GetHeight());
+	cairo_set_source_surface(context, imgSurface, 0, 0);
+	cairo_rectangle(context, 0, 0, cx, cy); //todo: src rect
+	_cairo.Fill();
+	cairo_surface_destroy(imgSurface);
+	
+	_cairo.Restore();
+}
+
+void CairoDraw::DrawLineOp(int x1, int y1, int x2, int y2, int width, Color color)
+{
+	if (width == 0) width = 1;
+	
+	_cairo.SetLineCap(CAIRO_LINE_CAP_ROUND);
+	_cairo.SetSourceRGB(color);
+	_cairo.SetLineWidth(width);
+	_cairo.MoveTo(x1 + 0.5, y1 + 0.5);
+	_cairo.LineTo(x2 + 0.5, y2 + 0.5);
+	_cairo.Stroke();
+}
+
+void CairoDraw::DrawPolyPolylineOp(const Point *vertices, int vertex_count,
+                                   const int *counts, int count_count,
+                                   int width, Color color, Color doxor)
+{
+	if (width == 0) width = 1;
+	
+	for (int i = 0; i < count_count; i++)
+	{
+		ASSERT(counts[i] >= 1);
+		_cairo.MoveTo(vertices->x + 0.5, vertices->y + 0.5);
+		vertices++;
+		
+		for (int j = 1; j < counts[i]; j++, vertices++)
+			_cairo.LineTo(vertices->x + 0.5, vertices->y + 0.5);
+	}
+	
+	_cairo.SetLineCap(CAIRO_LINE_CAP_ROUND);
+	_cairo.SetLineJoin(CAIRO_LINE_JOIN_ROUND);
+	_cairo.SetLineWidth(width);
+	_cairo.SetSourceRGB(color);
+	_cairo.Stroke();
+}
+
+void CairoDraw::DrawPolyPolyPolygonOp(const Point *vertices, int vertex_count,
+                                      const int *subpolygon_counts, int scc,
+                                      const int *disjunct_polygon_counts, int dpcc,
+                                      Color color, int width, Color outline,
+                                      uint64 pattern, Color doxor)
+{
+	if (width == 0) width = 1;
+	
+	for (int i = 0; i < scc; i++)
+	{
+		ASSERT(subpolygon_counts[i] >= 1);
+		_cairo.MoveTo(vertices->x, vertices->y);
+		vertices++;
+		
+		for (int j = 1; j < subpolygon_counts[i]; j++, vertices++)
+			_cairo.LineTo(vertices->x, vertices->y);
+		
+		_cairo.ClosePath();
+	}
+	
+	_cairo.SetSourceRGB(color);
+	_cairo.Fill(true);
+	_cairo.SetLineCap(CAIRO_LINE_CAP_ROUND);
+	_cairo.SetLineJoin(CAIRO_LINE_JOIN_ROUND);
+	_cairo.SetLineWidth(width);
+	_cairo.SetSourceRGB(outline);
+	_cairo.Stroke();
+}
+
+void CairoDraw::DrawEllipseOp(const Rect& r, Color color, int pen, Color pencolor)
+{
+	if (pen == 0) pen = 1;
+	
+	_cairo.Save();
+	_cairo.Translate(r.left + (r.Width() / 2.0), r.top + (r.Height() / 2.0));
+	_cairo.Scale(r.Width() / 2.0, r.Height() / 2.0);
+	_cairo.Arc(0.0, 0.0, 1.0, 0.0, 2 * M_PI);
+	_cairo.Restore();
+	
+	_cairo.SetSourceRGB(color);
+	
+	_cairo.Fill(pen != (int)Null);
+	
+	if (pen != (int)Null)
+	{
+		_cairo.SetLineWidth(pen);
+		_cairo.SetSourceRGB(pencolor);
+		_cairo.Stroke();
+	}
+}
+
+void CairoDraw::DrawArcOp(const Rect& rc, Point start, Point end, int width, Color color)
+{
+	if (width == 0) width = 1;
+	
+	//TODO
+}
+
+void CairoDraw::DrawTextOp(int x, int y, int angle, const wchar *text, Font font,
+                           Color ink, int n, const int *dx)
+{
+	cairo_t *context = _cairo.GetContext();
+	ASSERT(context != NULL);
+	
+	/*HFONT hFont = CreateFont(font.GetHeight() ? -abs(font.GetHeight()) : -12,
+		                     font.GetWidth(), angle, angle, font.IsBold() ? FW_BOLD : FW_NORMAL,
+		                     font.IsItalic(), font.IsUnderline(), font.IsStrikeout(),
+	                         Font::GetFaceInfo(font.GetFace()) & Font::SYMBOLTYPE ? SYMBOL_CHARSET : DEFAULT_CHARSET,
+	                         font.IsTrueTypeOnly() ? OUT_TT_ONLY_PRECIS : OUT_DEFAULT_PRECIS,
+	                         CLIP_DEFAULT_PRECIS,
+	                         font.IsNonAntiAliased() ? NONANTIALIASED_QUALITY
+						                          : DEFAULT_QUALITY,
+	                         DEFAULT_PITCH|FF_DONTCARE,
+	                         Font::GetFaceName(font.GetFace())/*sFontFace().GetKey(font.GetFace())* /);
+	
+	cairo_font_face_t *fontFace = cairo_win32_font_face_create_for_hfont(hFont);
+	cairo_set_font_face(context, fontFace);*/
+	cairo_set_font_size(context, font.GetHeight());
+	
+	_cairo.Save();
+	
+	_cairo.Translate(x, y + (font.GetHeight() ? abs(font.GetHeight()) : 12));
+	_cairo.Rotate(angle * (-3.14159 / 1800.0));
+	
+	_cairo.SetSourceRGB(ink);
+	WString tempWString = text;
+	cairo_show_text(context, tempWString.ToString());
+	
+	_cairo.NewPath();
+	
+	_cairo.Restore();
+	
+	/*cairo_font_face_destroy(fontFace);*/
+}
+
+END_UPP_NAMESPACE
+

uppdev/plugin/cairo/CairoDraw.h

@@ -0,0 +1,51 @@
+#ifndef _plugin_cairo_CairoDraw_h_
+#define _plugin_cairo_CairoDraw_h_
+
+#include <Draw/Draw.h>
+#include "Cairo.h"
+
+NAMESPACE_UPP
+
+class CairoDraw : public Draw 
+{
+private:
+	Vector<Point> _offsetStack;
+	Vector<Rect> _clipStack;
+	Rect _actualClip;
+	Cairo &_cairo;
+	
+public:
+	CairoDraw(Cairo &cairo) 
+		: _cairo(cairo) 
+	{}
+	
+	virtual void BeginOp();
+	virtual void EndOp();
+	virtual void OffsetOp(Point p);
+	virtual bool ClipOp(const Rect& r);
+	virtual bool ClipoffOp(const Rect& r);
+	virtual bool ExcludeClipOp(const Rect& r);
+	virtual bool IntersectClipOp(const Rect& r);
+	virtual Rect GetClipOp() const;
+	virtual bool IsPaintingOp(const Rect& r) const;
+
+	virtual	void DrawRectOp(int x, int y, int cx, int cy, Color color);
+	virtual void DrawImageOp(int x, int y, int cx, int cy, const Image& img, const Rect& src, Color color);
+	virtual void DrawLineOp(int x1, int y1, int x2, int y2, int width, Color color);
+	virtual void DrawPolyPolylineOp(const Point *vertices, int vertex_count,
+	                                const int *counts, int count_count,
+	                                int width, Color color, Color doxor);
+	virtual void DrawPolyPolyPolygonOp(const Point *vertices, int vertex_count,
+	                                   const int *subpolygon_counts, int scc,
+	                                   const int *disjunct_polygon_counts, int dpcc,
+	                                   Color color, int width, Color outline,
+	                                   uint64 pattern, Color doxor);
+	virtual void DrawEllipseOp(const Rect& r, Color color, int pen, Color pencolor);
+	virtual void DrawArcOp(const Rect& rc, Point start, Point end, int width, Color color);
+	virtual void DrawTextOp(int x, int y, int angle, const wchar *text, Font font,
+		                    Color ink, int n, const int *dx);
+};
+
+END_UPP_NAMESPACE
+
+#endif

uppdev/plugin/cairo/CairoPattern.h

@@ -0,0 +1,185 @@
+#ifndef _plugin_cairo_CairoPattern_h_
+#define _plugin_cairo_CairoPattern_h_
+
+#include <Core/Core.h>
+
+#include "lib/cairo.h"
+
+NAMESPACE_UPP
+
+#if 1
+#define CAIRO_METHOD_ENTER() ASSERT(_pattern != NULL)
+#define CAIRO_METHOD_LEAVE() { \
+                                 cairo_status_t status = cairo_pattern_status(_pattern); \
+                                 ASSERT_(status == CAIRO_STATUS_SUCCESS, cairo_status_to_string(status)); \
+                             }
+#else
+#define CAIRO_METHOD_ENTER() 
+#define CAIRO_METHOD_LEAVE()
+#endif
+
+class CairoPattern : public NoCopy /*abstract*/
+{
+protected:
+	cairo_pattern_t *_pattern;
+	
+	CairoPattern()
+		: _pattern(NULL)
+	{}
+	
+	virtual ~CairoPattern()
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+	}
+	
+public:
+	cairo_pattern_t *GetPattern()
+	{
+		return _pattern;
+	}
+	
+	void SetExtend(cairo_extend_t extend)
+	{
+		CAIRO_METHOD_ENTER();
+		cairo_pattern_set_extend(_pattern, extend);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_extend ()
+	
+	void SetFilter(cairo_filter_t filter)
+	{
+		CAIRO_METHOD_ENTER();
+		cairo_pattern_set_filter(_pattern, filter);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_filter ()
+	//cairo_pattern_set_matrix ()
+	//cairo_pattern_get_matrix ()
+	//cairo_pattern_get_type ()
+};
+
+class CairoGradient : public CairoPattern /*abstract*/
+{
+protected:
+	CairoGradient() {}
+	
+public:
+	void AddColorStopRGB(double offset, double r, double g, double b)
+	{
+		CAIRO_METHOD_ENTER();
+		cairo_pattern_add_color_stop_rgb(_pattern, offset, r, g, b);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	void AddColorStopRGB(double offset, Color const &color)
+	{
+		AddColorStopRGB(offset, color.GetR() / 255.0, color.GetG() / 255.0, color.GetB() / 255.0);
+	}
+	
+	void AddColorStopRGBA(double offset, double r, double g, double b, double a)
+	{
+		CAIRO_METHOD_ENTER();
+		cairo_pattern_add_color_stop_rgba(_pattern, offset, r, g, b, a);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_color_stop_count ()
+	//cairo_pattern_get_color_stop_rgba ()
+};
+
+class CairoSolidPattern : public CairoPattern
+{
+public:
+	CairoSolidPattern(double r, double g, double b) { SetRGB(r, g, b); }
+	CairoSolidPattern(Color const &color) { SetRGB(color); }
+	CairoSolidPattern(double r, double g, double b, double a) { SetRGBA(r, g, b, a); }
+	
+	void SetRGB(double r, double g, double b)
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+		
+		_pattern = cairo_pattern_create_rgb(r, g, b);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	void SetRGB(Color const &color)
+	{
+		SetRGB(color.GetR() / 255.0, color.GetG() / 255.0, color.GetB() / 255.0);
+	}
+	
+	void SetRGBA(double r, double g, double b, double a)
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+		
+		_pattern = cairo_pattern_create_rgba(r, g, b, a);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_rgba ()
+};
+
+class CairoLinearGradient : public CairoGradient
+{
+public:
+	CairoLinearGradient(double x0, double y0, double x1, double y1) { Set(x0, y0, x1, y1); }
+	
+	void Set(double x0, double y0, double x1, double y1)
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+		
+		_pattern = cairo_pattern_create_linear(x0, y0, x1, y1);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_linear_points ()
+};
+
+class CairoRadialGradient : public CairoGradient
+{
+public:
+	CairoRadialGradient(double cx0, double cy0, double radius0, double cx1, double cy1, double radius1) 
+	{
+		Set(cx0, cy0, radius0, cx1, cy1, radius1); 
+	}
+	
+	void Set(double cx0, double cy0, double radius0, double cx1, double cy1, double radius1)
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+		
+		_pattern = cairo_pattern_create_radial(cx0, cy0, radius0, cx1, cy1, radius1);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_radial_circles ()
+};
+
+class CairoSurfacePattern : public CairoPattern
+{
+public:
+	CairoSurfacePattern(cairo_surface_t *surface) { Set(surface); }
+	
+	void Set(cairo_surface_t *surface)
+	{
+		if (_pattern != NULL)
+			cairo_pattern_destroy(_pattern);
+		
+		_pattern = cairo_pattern_create_for_surface(surface);
+		CAIRO_METHOD_LEAVE();
+	}
+	
+	//cairo_pattern_get_surface ()
+};
+
+END_UPP_NAMESPACE
+
+#undef CAIRO_METHOD_ENTER 
+#undef CAIRO_METHOD_LEAVE
+
+#endif

uppdev/plugin/cairo/CairoUpp.cpp

@@ -0,0 +1,390 @@
+#include "Cairo.h"
+
+#include "CairoPattern.h"
+
+NAMESPACE_UPP
+
+void Cairo::SetSurface(cairo_surface_t *surface, int width, int height)
+{
+	ASSERT(surface != NULL);
+	
+	DestroySurface();
+	
+	_surface = surface;
+	_context = cairo_create(_surface);
+	_width = width;
+	_height = height;
+}
+
+void Cairo::SetSurface(ImageBuffer &img)
+{
+	ASSERT(img.IsEmpty() == false);
+	
+	cairo_surface_t *surface = cairo_image_surface_create_for_data((unsigned char *)&(img[0]->b),
+	                                                               CAIRO_FORMAT_ARGB32,
+	                                                               img.GetSize().cx,
+	                                                               img.GetSize().cy,
+	                                                               img.GetSize().cx * 4);
+	
+	SetSurface(surface, img.GetSize().cx, img.GetSize().cy);
+}
+
+void Cairo::CreateSvgSurface(String const &filename, double widthInPoints, double heightInPoints)
+{
+	SetSurface(cairo_svg_surface_create(filename, widthInPoints, heightInPoints), static_cast<int>(widthInPoints), static_cast<int>(heightInPoints));
+}
+
+void Cairo::CreatePdfSurface(String const &filename, double widthInPoints, double heightInPoints)
+{
+	SetSurface(cairo_pdf_surface_create(filename, widthInPoints, heightInPoints), static_cast<int>(widthInPoints), static_cast<int>(heightInPoints));
+}
+
+#if 1
+#define CAIRO_METHOD_ENTER() ASSERT(_context != NULL)
+#define CAIRO_METHOD_LEAVE() { \
+                                 cairo_status_t status = cairo_status(_context); \
+                                 ASSERT_(status == CAIRO_STATUS_SUCCESS, cairo_status_to_string(status)); \
+                             }
+#else
+#define CAIRO_METHOD_ENTER() 
+#define CAIRO_METHOD_LEAVE()
+#endif
+
+void Cairo::Save()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_save(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Restore()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_restore(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::PushGroup()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_push_group(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::PopGroup()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_pop_group(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::PopGroupToSource()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_pop_group_to_source(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetSourceRGB(double r, double g, double b)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_source_rgb(_context, r, g, b);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetSourceRGB(Color const &color)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_source_rgb(_context, color.GetR() / 255.0, color.GetG() / 255.0, color.GetB() / 255.0);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetSourceRGBA(double r, double g, double b, double a)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_source_rgba(_context, r, g, b, a);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetSource(CairoPattern &pattern)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_source(_context, pattern.GetPattern());
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetAntialias(cairo_antialias_t antialias)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_antialias(_context, antialias);
+	CAIRO_METHOD_LEAVE();
+}
+
+cairo_antialias_t Cairo::GetAntialias()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_antialias_t result = cairo_get_antialias(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetDash(double const * dashes, int numDashes, double offset)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_dash(_context, dashes, numDashes, offset);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::SetFillRule(cairo_fill_rule_t fillRule)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_fill_rule(_context, fillRule);
+	CAIRO_METHOD_LEAVE();
+}
+
+cairo_fill_rule_t Cairo::GetFillRule()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_fill_rule_t result = cairo_get_fill_rule(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetLineCap(cairo_line_cap_t lineCap)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_line_cap(_context, lineCap);
+	CAIRO_METHOD_LEAVE();
+}
+
+cairo_line_cap_t Cairo::GetLineCap()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_line_cap_t result = cairo_get_line_cap(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetLineJoin(cairo_line_join_t lineJoin)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_line_join(_context, lineJoin);
+	CAIRO_METHOD_LEAVE();
+}
+
+cairo_line_join_t Cairo::GetLineJoin()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_line_join_t result = cairo_get_line_join(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetLineWidth(double width)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_line_width(_context, width);
+	CAIRO_METHOD_LEAVE();
+}
+
+double Cairo::GetLineWidth()
+{
+	CAIRO_METHOD_ENTER();
+	double result = cairo_get_line_width(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetMiterLimit(double limit)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_miter_limit(_context, limit);
+	CAIRO_METHOD_LEAVE();
+}
+
+double Cairo::GetMiterLimit()
+{
+	CAIRO_METHOD_ENTER();
+	double result = cairo_get_miter_limit(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetOperator(cairo_operator_t op)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_operator(_context, op);
+	CAIRO_METHOD_LEAVE();
+}
+
+cairo_operator_t Cairo::GetOperator()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_operator_t result = cairo_get_operator(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::SetTolerance(double tolerance)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_set_tolerance(_context, tolerance);
+	CAIRO_METHOD_LEAVE();
+}
+
+double Cairo::GetTolerance()
+{
+	CAIRO_METHOD_ENTER();
+	double result = cairo_get_tolerance(_context);
+	CAIRO_METHOD_LEAVE();
+	return result;
+}
+
+void Cairo::Clip(bool preserve)
+{
+	CAIRO_METHOD_ENTER();
+	if (!preserve)
+		cairo_clip(_context);
+	else
+		cairo_clip_preserve(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Fill(bool preserve)
+{
+	CAIRO_METHOD_ENTER();
+	if (!preserve)
+		cairo_fill(_context);
+	else
+		cairo_fill_preserve(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Paint(double alpha)
+{
+	CAIRO_METHOD_ENTER();
+	if (alpha >= 1.0)
+		cairo_paint(_context);
+	else
+		cairo_paint_with_alpha(_context, alpha);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Stroke(bool preserve)
+{
+	CAIRO_METHOD_ENTER();
+	if (!preserve)
+		cairo_stroke(_context);
+	else
+		cairo_stroke_preserve(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Translate(double tx, double ty)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_translate(_context, tx, ty);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Scale(double sx, double sy)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_scale(_context, sx, sy);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Rotate(double angle)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_rotate(_context, angle);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::IdentityMatrix()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_identity_matrix(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+Pointf Cairo::GetCurrentPoint()
+{
+	Pointf p;
+	CAIRO_METHOD_ENTER();
+	cairo_get_current_point(_context, &p.x, &p.y);
+	CAIRO_METHOD_LEAVE();
+	return p;
+}
+
+void Cairo::NewPath()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_new_path(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::ClosePath()
+{
+	CAIRO_METHOD_ENTER();
+	cairo_close_path(_context);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Arc(double xc, double yc, double radius, double angle1, double angle2)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_arc(_context, xc, yc, radius, angle1, angle2);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::CurveTo(double x1, double y1, double x2, double y2, double x3, double y3)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_curve_to(_context, x1, y1, x2, y2, x3, y3);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::LineTo(double x, double y)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_line_to(_context, x, y);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::MoveTo(double x, double y)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_move_to(_context, x, y);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::Rectangle(double x, double y, double width, double height)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_rectangle(_context, x, y, width, height);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::RelCurveTo(double x1, double y1, double x2, double y2, double x3, double y3)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_rel_curve_to(_context, x1, y1, x2, y2, x3, y3);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::RelLineTo(double x, double y)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_rel_line_to(_context, x, y);
+	CAIRO_METHOD_LEAVE();
+}
+
+void Cairo::RelMoveTo(double x, double y)
+{
+	CAIRO_METHOD_ENTER();
+	cairo_rel_move_to(_context, x, y);
+	CAIRO_METHOD_LEAVE();
+}
+
+END_UPP_NAMESPACE

uppdev/plugin/cairo/cairo-version.h

@@ -0,0 +1,8 @@
+#ifndef CAIRO_VERSION_H
+#define CAIRO_VERSION_H
+
+#define CAIRO_VERSION_MAJOR 1
+#define CAIRO_VERSION_MINOR 8
+#define CAIRO_VERSION_MICRO 0
+
+#endif

uppdev/plugin/cairo/cairo.upp

@@ -0,0 +1,27 @@
+uses
+	Core,
+	plugin\png,
+	plugin\pixman;
+
+library(WIN32) "user32 gdi32 msimg32";
+
+library(!WIN32) cairo;
+
+options(WIN32) "-I\"./lib\" -I\"../pixman/lib\"";
+
+options(WIN32) "-I\"C:/upp/uppsrc/plugin/z/lib\" -I\"C:/upp/uppsrc/plugin/png/lib\"";
+
+options(WIN32) -D_CRT_SECURE_NO_WARNINGS;
+
+file
+	Cairo.h,
+	CairoUpp.cpp,
+	CairoPattern.h,
+	CairoDraw.h,
+	CairoDraw.cpp,
+	CairoCtrl.h,
+	cairolib.c,
+	cairolibwin32.c,
+	Cairo readonly separator,
+	lib/cairo-features.h;
+

uppdev/plugin/cairo/cairolib.c

@@ -0,0 +1,92 @@
+#ifdef flagWIN32
+
+#undef CAIRO_VERSION_H
+#undef CAIRO_VERSION_MAJOR
+#undef CAIRO_VERSION_MINOR
+#undef CAIRO_VERSION_MICRO
+#include "lib/cairo-version.c"
+
+#include "lib/cairo-analysis-surface.c"
+#include "lib/cairo-arc.c"
+#include "lib/cairo-array.c"
+#include "lib/cairo-atomic.c"
+#include "lib/cairo-base85-stream.c"
+#include "lib/cairo-bentley-ottmann.c"
+#include "lib/cairo-cache.c"
+
+#undef _BSD_SOURCE
+#include "lib/cairo-cff-subset.c"
+
+#include "lib/cairo-clip.c"
+#include "lib/cairo-color.c"
+//#include "lib/cairo-debug.c" 
+#include "lib/cairo-deflate-stream.c"
+#include "lib/cairo-fixed.c"
+
+#undef _BSD_SOURCE
+#include "lib/cairo-font-face.c"
+
+#include "lib/cairo-font-face-twin.c"
+#include "lib/cairo-font-face-twin-data.c"
+#include "lib/cairo-font-options.c"
+#include "lib/cairo-freelist.c"
+#include "lib/cairo-gstate.c"
+#include "lib/cairo-hash.c"
+#include "lib/cairo-hull.c"
+#include "lib/cairo-image-surface.c"
+#include "lib/cairo-lzw.c"
+#include "lib/cairo-matrix.c"
+#include "lib/cairo-meta-surface.c"
+#include "lib/cairo-misc.c"
+#include "lib/cairo-mutex.c"
+
+#undef _BSD_SOURCE
+#include "lib/cairo-output-stream.c"
+
+#include "lib/cairo-paginated-surface.c"
+#include "lib/cairo-path-bounds.c"
+#include "lib/cairo-path-fill.c"
+#include "lib/cairo-path-fixed.c"
+#include "lib/cairo-path-stroke.c"
+#include "lib/cairo-path.c"
+#include "lib/cairo-pattern.c"
+#include "lib/cairo-pdf-operators.c"
+
+#undef _BSD_SOURCE
+#include "lib/cairo-pdf-surface.c"
+
+#include "lib/cairo-pen.c"
+#include "lib/cairo-polygon.c"
+#include "lib/cairo-png.c"
+#include "lib/cairo-rectangle.c"
+#include "lib/cairo-region.c"
+#include "lib/cairo-scaled-font-subsets.c"
+#include "lib/cairo-scaled-font.c"
+#include "lib/cairo-skiplist.c"
+#include "lib/cairo-slope.c"
+#include "lib/cairo-spline.c"
+#include "lib/cairo-stroke-style.c"
+#include "lib/cairo-surface-fallback.c"
+#include "lib/cairo-surface.c"
+#include "lib/cairo-svg-surface.c"
+#include "lib/cairo-traps.c"
+#include "lib/cairo-truetype-subset.c"
+#include "lib/cairo-type1-fallback.c"
+#include "lib/cairo-type3-glyph-surface.c"
+#include "lib/cairo-unicode.c"
+#include "lib/cairo-user-font.c"
+#include "lib/cairo-wideint.c"
+#include "lib/cairo.c"
+
+// files that would be needed if you want to compile for linux.
+// currently we just use the cairo library from the system
+/*
+#include "lib/cairo-ft-font.c"
+#include "lib/cairo-xlib-screen.c"
+#include "lib/cairo-xlib-surface.c"
+#include "lib/cairo-xlib-visual.c"
+#include "lib/cairo-type1-subset.c"
+#include "lib/cairo-xlib-display.c"
+*/
+
+#endif

uppdev/plugin/cairo/cairolibwin32.c

@@ -0,0 +1,8 @@
+#ifdef flagWIN32
+
+//#include "lib/cairo-win32.c"
+#include "lib/cairo-win32-font.c"
+#include "lib/cairo-win32-printing-surface.c"
+#include "lib/cairo-win32-surface.c"
+
+#endif

uppdev/plugin/cairo/init

@@ -0,0 +1,6 @@
+#ifndef _plugin_cairo_icpp_init_stub
+#define _plugin_cairo_icpp_init_stub
+#include "Core/init"
+#include "plugin\png/init"
+#include "plugin\pixman/init"
+#endif

uppdev/plugin/cairo/lib/cairo-analysis-surface-private.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright © 2005 Keith Packard
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Keith Packard
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ */
+
+#ifndef CAIRO_ANALYSIS_SURFACE_H
+#define CAIRO_ANALYSIS_SURFACE_H
+
+#include "cairoint.h"
+
+cairo_private cairo_surface_t *
+_cairo_analysis_surface_create (cairo_surface_t		*target,
+				int			 width,
+				int			 height);
+
+cairo_private void
+_cairo_analysis_surface_set_ctm (cairo_surface_t *surface,
+				 cairo_matrix_t  *ctm);
+
+cairo_private void
+_cairo_analysis_surface_get_ctm (cairo_surface_t *surface,
+				 cairo_matrix_t  *ctm);
+
+cairo_private cairo_region_t *
+_cairo_analysis_surface_get_supported (cairo_surface_t *surface);
+
+cairo_private cairo_region_t *
+_cairo_analysis_surface_get_unsupported (cairo_surface_t *surface);
+
+cairo_private cairo_bool_t
+_cairo_analysis_surface_has_supported (cairo_surface_t *surface);
+
+cairo_private cairo_bool_t
+_cairo_analysis_surface_has_unsupported (cairo_surface_t *surface);
+
+cairo_private void
+_cairo_analysis_surface_get_bounding_box (cairo_surface_t *surface,
+					  cairo_box_t     *bbox);
+
+cairo_private cairo_int_status_t
+_cairo_analysis_surface_merge_status (cairo_int_status_t status_a,
+				      cairo_int_status_t status_b);
+
+cairo_private cairo_surface_t *
+_cairo_null_surface_create (cairo_content_t content);
+
+#endif /* CAIRO_ANALYSIS_SURFACE_H */

uppdev/plugin/cairo/lib/cairo-analysis-surface.c

@@ -0,0 +1,988 @@
+/*
+ * Copyright © 2006 Keith Packard
+ * Copyright © 2007 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Keith Packard
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *      Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-analysis-surface-private.h"
+#include "cairo-paginated-private.h"
+#include "cairo-region-private.h"
+#include "cairo-meta-surface-private.h"
+
+typedef struct {
+    cairo_surface_t base;
+    int width;
+    int height;
+
+    cairo_surface_t	*target;
+
+    cairo_bool_t first_op;
+    cairo_bool_t has_supported;
+    cairo_bool_t has_unsupported;
+
+    cairo_region_t supported_region;
+    cairo_region_t fallback_region;
+    cairo_rectangle_int_t current_clip;
+    cairo_box_t page_bbox;
+
+    cairo_bool_t has_ctm;
+    cairo_matrix_t ctm;
+
+} cairo_analysis_surface_t;
+
+cairo_int_status_t
+_cairo_analysis_surface_merge_status (cairo_int_status_t status_a,
+				      cairo_int_status_t status_b)
+{
+    /* fatal errors should be checked and propagated at source */
+    assert (! _cairo_status_is_error (status_a));
+    assert (! _cairo_status_is_error (status_b));
+
+    /* return the most important status */
+    if (status_a == CAIRO_INT_STATUS_UNSUPPORTED ||
+	status_b == CAIRO_INT_STATUS_UNSUPPORTED)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    if (status_a == CAIRO_INT_STATUS_IMAGE_FALLBACK ||
+	status_b == CAIRO_INT_STATUS_IMAGE_FALLBACK)
+	return CAIRO_INT_STATUS_IMAGE_FALLBACK;
+
+    if (status_a == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN ||
+	status_b == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	return CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN;
+
+    if (status_a == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY ||
+	status_b == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY)
+	return CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY;
+
+    /* at this point we have checked all the valid internal codes, so... */
+    assert (status_a == CAIRO_STATUS_SUCCESS &&
+	    status_b == CAIRO_STATUS_SUCCESS);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_analyze_meta_surface_pattern (cairo_analysis_surface_t	*surface,
+			       cairo_pattern_t		*pattern)
+{
+    cairo_surface_t *analysis = &surface->base;
+    cairo_surface_pattern_t *surface_pattern;
+    cairo_status_t status;
+    cairo_bool_t old_has_ctm;
+    cairo_matrix_t old_ctm, p2d;
+    cairo_rectangle_int_t old_clip;
+    cairo_rectangle_int_t meta_extents;
+    int old_width;
+    int old_height;
+
+    assert (pattern->type == CAIRO_PATTERN_TYPE_SURFACE);
+    surface_pattern = (cairo_surface_pattern_t *) pattern;
+    assert (_cairo_surface_is_meta (surface_pattern->surface));
+
+    old_width = surface->width;
+    old_height = surface->height;
+    old_clip = surface->current_clip;
+    status = _cairo_surface_get_extents (surface_pattern->surface, &meta_extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    surface->width = meta_extents.width;
+    surface->height = meta_extents.height;
+    surface->current_clip.x = 0;
+    surface->current_clip.y = 0;
+    surface->current_clip.width = surface->width;
+    surface->current_clip.height = surface->height;
+    old_ctm = surface->ctm;
+    old_has_ctm = surface->has_ctm;
+    p2d = pattern->matrix;
+    status = cairo_matrix_invert (&p2d);
+    /* _cairo_pattern_set_matrix guarantees invertibility */
+    assert (status == CAIRO_STATUS_SUCCESS);
+
+    cairo_matrix_multiply (&surface->ctm, &p2d, &surface->ctm);
+    surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm);
+
+    status = _cairo_meta_surface_replay_and_create_regions (surface_pattern->surface,
+							    analysis);
+    if (status == CAIRO_STATUS_SUCCESS)
+	status = analysis->status;
+
+    surface->ctm = old_ctm;
+    surface->has_ctm = old_has_ctm;
+    surface->current_clip = old_clip;
+    surface->width = old_width;
+    surface->height = old_height;
+
+    return status;
+}
+
+static cairo_int_status_t
+_add_operation  (cairo_analysis_surface_t *surface,
+		 cairo_rectangle_int_t    *rect,
+		 cairo_int_status_t        backend_status)
+{
+    cairo_int_status_t status;
+    cairo_box_t bbox;
+
+    if (rect->width == 0 || rect->height == 0) {
+	/* Even though the operation is not visible we must be careful
+	 * to not allow unsupported operations to be replayed to the
+	 * backend during CAIRO_PAGINATED_MODE_RENDER */
+	if (backend_status == CAIRO_STATUS_SUCCESS ||
+	    backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY)
+	{
+	    return CAIRO_STATUS_SUCCESS;
+	}
+	else
+	{
+	    return CAIRO_INT_STATUS_IMAGE_FALLBACK;
+	}
+    }
+
+    _cairo_box_from_rectangle (&bbox, rect);
+
+    if (surface->has_ctm) {
+
+	_cairo_matrix_transform_bounding_box_fixed (&surface->ctm, &bbox, NULL);
+
+	if (bbox.p1.x == bbox.p2.x || bbox.p1.y == bbox.p2.y) {
+	    /* Even though the operation is not visible we must be
+	     * careful to not allow unsupported operations to be
+	     * replayed to the backend during
+	     * CAIRO_PAGINATED_MODE_RENDER */
+	    if (backend_status == CAIRO_STATUS_SUCCESS ||
+		backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY)
+	    {
+		return CAIRO_STATUS_SUCCESS;
+	    }
+	    else
+	    {
+		return CAIRO_INT_STATUS_IMAGE_FALLBACK;
+	    }
+	}
+
+	_cairo_box_round_to_rectangle (&bbox, rect);
+    }
+
+    if (surface->first_op) {
+	surface->first_op = FALSE;
+	surface->page_bbox = bbox;
+    } else {
+	if (bbox.p1.x < surface->page_bbox.p1.x)
+	    surface->page_bbox.p1.x = bbox.p1.x;
+	if (bbox.p1.y < surface->page_bbox.p1.y)
+	    surface->page_bbox.p1.y = bbox.p1.y;
+	if (bbox.p2.x > surface->page_bbox.p2.x)
+	    surface->page_bbox.p2.x = bbox.p2.x;
+	if (bbox.p2.y > surface->page_bbox.p2.y)
+	    surface->page_bbox.p2.y = bbox.p2.y;
+    }
+
+    /* If the operation is completely enclosed within the fallback
+     * region there is no benefit in emitting a native operation as
+     * the fallback image will be painted on top.
+     */
+    if (_cairo_region_contains_rectangle (&surface->fallback_region, rect) == PIXMAN_REGION_IN)
+	return CAIRO_INT_STATUS_IMAGE_FALLBACK;
+
+    if (backend_status == CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY) {
+	/* A status of CAIRO_INT_STATUS_FLATTEN_TRANSPARENCY indicates
+	 * that the backend only supports this operation if the
+	 * transparency removed. If the extents of this operation does
+	 * not intersect any other native operation, the operation is
+	 * natively supported and the backend will blend the
+	 * transparency into the white background.
+	 */
+	if (_cairo_region_contains_rectangle (&surface->supported_region, rect) == PIXMAN_REGION_OUT)
+	    backend_status = CAIRO_STATUS_SUCCESS;
+    }
+
+    if (backend_status == CAIRO_STATUS_SUCCESS) {
+	/* Add the operation to the supported region. Operations in
+	 * this region will be emitted as native operations.
+	 */
+	surface->has_supported = TRUE;
+	status = _cairo_region_union_rect (&surface->supported_region,
+					   &surface->supported_region,
+					   rect);
+	return status;
+    }
+
+    /* Add the operation to the unsupported region. This region will
+     * be painted as an image after all native operations have been
+     * emitted.
+     */
+    surface->has_unsupported = TRUE;
+    status = _cairo_region_union_rect (&surface->fallback_region,
+				       &surface->fallback_region,
+				       rect);
+
+    /* The status CAIRO_INT_STATUS_IMAGE_FALLBACK is used to indicate
+     * unsupported operations to the meta surface as using
+     * CAIRO_INT_STATUS_UNSUPPORTED would cause cairo-surface to
+     * invoke the cairo-surface-fallback path then return
+     * CAIRO_STATUS_SUCCESS.
+     */
+    if (status == CAIRO_STATUS_SUCCESS)
+	return CAIRO_INT_STATUS_IMAGE_FALLBACK;
+    else
+	return status;
+}
+
+static cairo_status_t
+_cairo_analysis_surface_finish (void *abstract_surface)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    _cairo_region_fini (&surface->supported_region);
+    _cairo_region_fini (&surface->fallback_region);
+
+    cairo_surface_destroy (surface->target);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_intersect_clip_path (void		*abstract_surface,
+					     cairo_path_fixed_t *path,
+					     cairo_fill_rule_t   fill_rule,
+					     double		 tolerance,
+					     cairo_antialias_t   antialias)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    double                    x1, y1, x2, y2;
+    cairo_rectangle_int_t   extent;
+    cairo_bool_t is_empty;
+
+    if (path == NULL) {
+	surface->current_clip.x = 0;
+	surface->current_clip.y = 0;
+	surface->current_clip.width  = surface->width;
+	surface->current_clip.height = surface->height;
+    } else {
+	cairo_status_t status;
+
+	status = _cairo_path_fixed_bounds (path, &x1, &y1, &x2, &y2, tolerance);
+	if (status)
+	    return status;
+
+	extent.x = floor (x1);
+	extent.y = floor (y1);
+	extent.width  = ceil (x2) - extent.x;
+	extent.height = ceil (y2) - extent.y;
+
+	is_empty = _cairo_rectangle_intersect (&surface->current_clip, &extent);
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_get_extents (void			*abstract_surface,
+				     cairo_rectangle_int_t	*rectangle)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+
+    return _cairo_surface_get_extents (surface->target, rectangle);
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_paint (void			*abstract_surface,
+			      cairo_operator_t		op,
+			      cairo_pattern_t		*source)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_status_t	     status, backend_status;
+    cairo_rectangle_int_t  extents;
+    cairo_bool_t is_empty;
+
+    if (!surface->target->backend->paint)
+	backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+    else
+	backend_status = (*surface->target->backend->paint) (surface->target, op,
+                                                             source);
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	backend_status = _analyze_meta_surface_pattern (surface, source);
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_mask (void		*abstract_surface,
+			      cairo_operator_t	 op,
+			      cairo_pattern_t	*source,
+			      cairo_pattern_t	*mask)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_int_status_t	      status, backend_status;
+    cairo_rectangle_int_t   extents;
+    cairo_bool_t is_empty;
+
+    if (!surface->target->backend->mask)
+	backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+    else
+	backend_status = (*surface->target->backend->mask) (surface->target, op,
+                                                            source, mask);
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN) {
+	cairo_int_status_t backend_source_status = CAIRO_STATUS_SUCCESS;
+	cairo_int_status_t backend_mask_status = CAIRO_STATUS_SUCCESS;
+
+	if (source->type == CAIRO_PATTERN_TYPE_SURFACE) {
+	    cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) source;
+	    if (_cairo_surface_is_meta (surface_pattern->surface)) {
+		backend_source_status =
+		    _analyze_meta_surface_pattern (surface, source);
+		if (_cairo_status_is_error (backend_source_status))
+		    return backend_source_status;
+	    }
+	}
+
+	if (mask->type == CAIRO_PATTERN_TYPE_SURFACE) {
+	    cairo_surface_pattern_t *surface_pattern = (cairo_surface_pattern_t *) mask;
+	    if (_cairo_surface_is_meta (surface_pattern->surface)) {
+		backend_mask_status =
+		    _analyze_meta_surface_pattern (surface, mask);
+		if (_cairo_status_is_error (backend_mask_status))
+		    return backend_mask_status;
+	    }
+	}
+
+	backend_status =
+	    _cairo_analysis_surface_merge_status (backend_source_status,
+						  backend_mask_status);
+    }
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    if (_cairo_operator_bounded_by_mask (op)) {
+	cairo_rectangle_int_t mask_extents;
+
+	status = _cairo_pattern_get_extents (mask, &mask_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &mask_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_stroke (void			*abstract_surface,
+				cairo_operator_t	 op,
+				cairo_pattern_t		*source,
+				cairo_path_fixed_t	*path,
+				cairo_stroke_style_t	*style,
+				cairo_matrix_t		*ctm,
+				cairo_matrix_t		*ctm_inverse,
+				double			 tolerance,
+				cairo_antialias_t	 antialias)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_status_t	     status, backend_status;
+    cairo_traps_t            traps;
+    cairo_rectangle_int_t    extents;
+    cairo_bool_t             is_empty;
+
+    if (!surface->target->backend->stroke)
+	backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+    else
+	backend_status = (*surface->target->backend->stroke) (surface->target, op,
+							      source, path, style,
+							      ctm, ctm_inverse,
+							      tolerance, antialias);
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	backend_status = _analyze_meta_surface_pattern (surface, source);
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    if (_cairo_operator_bounded_by_mask (op)) {
+	cairo_box_t box;
+
+	_cairo_box_from_rectangle (&box, &extents);
+
+	_cairo_traps_init (&traps);
+	_cairo_traps_limit (&traps, &box);
+	status = _cairo_path_fixed_stroke_to_traps (path,
+						    style,
+						    ctm, ctm_inverse,
+						    tolerance,
+						    &traps);
+	if (status) {
+	    _cairo_traps_fini (&traps);
+	    return status;
+	}
+
+	_cairo_traps_extents (&traps, &box);
+	_cairo_traps_fini (&traps);
+
+        _cairo_box_round_to_rectangle (&box, &extents);
+    }
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_fill (void			*abstract_surface,
+			      cairo_operator_t		 op,
+			      cairo_pattern_t		*source,
+			      cairo_path_fixed_t	*path,
+			      cairo_fill_rule_t		 fill_rule,
+			      double			 tolerance,
+			      cairo_antialias_t		 antialias)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_status_t	     status, backend_status;
+    cairo_traps_t            traps;
+    cairo_rectangle_int_t    extents;
+    cairo_bool_t             is_empty;
+
+    if (!surface->target->backend->fill)
+	backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+    else
+	backend_status = (*surface->target->backend->fill) (surface->target, op,
+						    source, path, fill_rule,
+						    tolerance, antialias);
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	backend_status = _analyze_meta_surface_pattern (surface, source);
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    if (_cairo_operator_bounded_by_mask (op)) {
+	cairo_box_t box;
+
+	_cairo_box_from_rectangle (&box, &extents);
+
+	_cairo_traps_init (&traps);
+	_cairo_traps_limit (&traps, &box);
+	status = _cairo_path_fixed_fill_to_traps (path,
+						  fill_rule,
+						  tolerance,
+						  &traps);
+	if (status) {
+	    _cairo_traps_fini (&traps);
+	    return status;
+	}
+
+	_cairo_traps_extents (&traps, &box);
+	_cairo_traps_fini (&traps);
+
+        _cairo_box_round_to_rectangle (&box, &extents);
+    }
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_show_glyphs (void		  *abstract_surface,
+				     cairo_operator_t	   op,
+				     cairo_pattern_t	  *source,
+				     cairo_glyph_t	  *glyphs,
+				     int		   num_glyphs,
+				     cairo_scaled_font_t  *scaled_font,
+				     int                  *remaining_glyphs)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_status_t	     status, backend_status;
+    cairo_rectangle_int_t    extents, glyph_extents;
+    cairo_bool_t             is_empty;
+
+    /* Adapted from _cairo_surface_show_glyphs */
+    if (surface->target->backend->show_glyphs)
+	backend_status = (*surface->target->backend->show_glyphs) (surface->target, op,
+								   source,
+								   glyphs, num_glyphs,
+								   scaled_font,
+								   remaining_glyphs);
+    else if (surface->target->backend->show_text_glyphs)
+	backend_status = surface->target->backend->show_text_glyphs (surface->target, op,
+								     source,
+								     NULL, 0,
+								     glyphs, num_glyphs,
+								     NULL, 0,
+								     FALSE,
+								     scaled_font);
+    else
+	backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	backend_status = _analyze_meta_surface_pattern (surface, source);
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    if (_cairo_operator_bounded_by_mask (op)) {
+	status = _cairo_scaled_font_glyph_device_extents (scaled_font,
+							  glyphs,
+							  num_glyphs,
+							  &glyph_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &glyph_extents);
+    }
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static cairo_bool_t
+_cairo_analysis_surface_has_show_text_glyphs (void *abstract_surface)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+
+    return cairo_surface_has_show_text_glyphs (surface->target);
+}
+
+static cairo_int_status_t
+_cairo_analysis_surface_show_text_glyphs (void			    *abstract_surface,
+					  cairo_operator_t	     op,
+					  cairo_pattern_t	    *source,
+					  const char		    *utf8,
+					  int			     utf8_len,
+					  cairo_glyph_t		    *glyphs,
+					  int			     num_glyphs,
+					  const cairo_text_cluster_t *clusters,
+					  int			     num_clusters,
+					  cairo_text_cluster_flags_t cluster_flags,
+					  cairo_scaled_font_t	    *scaled_font)
+{
+    cairo_analysis_surface_t *surface = abstract_surface;
+    cairo_status_t	     status, backend_status;
+    cairo_rectangle_int_t    extents, glyph_extents;
+    cairo_bool_t             is_empty;
+
+    /* Adapted from _cairo_surface_show_glyphs */
+    backend_status = CAIRO_INT_STATUS_UNSUPPORTED;
+    if (surface->target->backend->show_text_glyphs)
+	backend_status = surface->target->backend->show_text_glyphs (surface->target, op,
+								     source,
+								     utf8, utf8_len,
+								     glyphs, num_glyphs,
+								     clusters, num_clusters, cluster_flags,
+								     scaled_font);
+    if (backend_status == CAIRO_INT_STATUS_UNSUPPORTED && surface->target->backend->show_glyphs) {
+	int remaining_glyphs = num_glyphs;
+	backend_status = surface->target->backend->show_glyphs (surface->target, op,
+								source,
+								glyphs, num_glyphs,
+								scaled_font,
+								&remaining_glyphs);
+	glyphs += num_glyphs - remaining_glyphs;
+	num_glyphs = remaining_glyphs;
+	if (remaining_glyphs == 0)
+	    backend_status = CAIRO_STATUS_SUCCESS;
+    }
+
+    if (backend_status == CAIRO_INT_STATUS_ANALYZE_META_SURFACE_PATTERN)
+	backend_status = _analyze_meta_surface_pattern (surface, source);
+
+    status = _cairo_surface_get_extents (&surface->base, &extents);
+    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    if (_cairo_operator_bounded_by_source (op)) {
+	cairo_rectangle_int_t source_extents;
+
+	status = _cairo_pattern_get_extents (source, &source_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &source_extents);
+    }
+
+    is_empty = _cairo_rectangle_intersect (&extents, &surface->current_clip);
+
+    if (_cairo_operator_bounded_by_mask (op)) {
+	status = _cairo_scaled_font_glyph_device_extents (scaled_font,
+							  glyphs,
+							  num_glyphs,
+							  &glyph_extents);
+	if (status)
+	    return status;
+
+	is_empty = _cairo_rectangle_intersect (&extents, &glyph_extents);
+    }
+
+    status = _add_operation (surface, &extents, backend_status);
+
+    return status;
+}
+
+static const cairo_surface_backend_t cairo_analysis_surface_backend = {
+    CAIRO_INTERNAL_SURFACE_TYPE_ANALYSIS,
+    NULL, /* create_similar */
+    _cairo_analysis_surface_finish,
+    NULL, /* acquire_source_image */
+    NULL, /* release_source_image */
+    NULL, /* acquire_dest_image */
+    NULL, /* release_dest_image */
+    NULL, /* clone_similar */
+    NULL, /* composite */
+    NULL, /* fill_rectangles */
+    NULL, /* composite_trapezoids */
+    NULL, /* copy_page */
+    NULL, /* show_page */
+    NULL, /* set_clip_region */
+    _cairo_analysis_surface_intersect_clip_path,
+    _cairo_analysis_surface_get_extents,
+    NULL, /* old_show_glyphs */
+    NULL, /* get_font_options */
+    NULL, /* flush */
+    NULL, /* mark_dirty_rectangle */
+    NULL, /* scaled_font_fini */
+    NULL, /* scaled_glyph_fini */
+    _cairo_analysis_surface_paint,
+    _cairo_analysis_surface_mask,
+    _cairo_analysis_surface_stroke,
+    _cairo_analysis_surface_fill,
+    _cairo_analysis_surface_show_glyphs,
+    NULL, /* snapshot */
+    NULL, /* is_similar */
+    NULL, /* reset */
+    NULL, /* fill_stroke */
+    NULL, /* create_solid_pattern_surface */
+    _cairo_analysis_surface_has_show_text_glyphs,
+    _cairo_analysis_surface_show_text_glyphs
+};
+
+cairo_surface_t *
+_cairo_analysis_surface_create (cairo_surface_t		*target,
+				int			 width,
+				int			 height)
+{
+    cairo_analysis_surface_t *surface;
+    cairo_status_t status;
+
+    status = target->status;
+    if (status)
+	return _cairo_surface_create_in_error (status);
+
+    surface = malloc (sizeof (cairo_analysis_surface_t));
+    if (surface == NULL)
+	return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+
+    /* I believe the content type here is truly arbitrary. I'm quite
+     * sure nothing will ever use this value. */
+    _cairo_surface_init (&surface->base, &cairo_analysis_surface_backend,
+			 CAIRO_CONTENT_COLOR_ALPHA);
+
+    surface->width = width;
+    surface->height = height;
+    cairo_matrix_init_identity (&surface->ctm);
+    surface->has_ctm = FALSE;
+
+    surface->target = cairo_surface_reference (target);
+    surface->first_op  = TRUE;
+    surface->has_supported = FALSE;
+    surface->has_unsupported = FALSE;
+
+    surface->page_bbox.p1.x = 0;
+    surface->page_bbox.p1.y = 0;
+    surface->page_bbox.p2.x = 0;
+    surface->page_bbox.p2.y = 0;
+
+    _cairo_region_init (&surface->supported_region);
+    _cairo_region_init (&surface->fallback_region);
+
+    if (width == -1 && height == -1) {
+	surface->current_clip.x      = CAIRO_RECT_INT_MIN;
+	surface->current_clip.y      = CAIRO_RECT_INT_MIN;
+	surface->current_clip.width  = CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN;
+	surface->current_clip.height = CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN;
+    } else {
+	surface->current_clip.x = 0;
+	surface->current_clip.y = 0;
+	surface->current_clip.width = width;
+	surface->current_clip.height = height;
+    }
+
+    return &surface->base;
+}
+
+void
+_cairo_analysis_surface_set_ctm (cairo_surface_t *abstract_surface,
+				 cairo_matrix_t  *ctm)
+{
+    cairo_analysis_surface_t	*surface;
+
+    if (abstract_surface->status)
+	return;
+
+    surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    surface->ctm = *ctm;
+    surface->has_ctm = !_cairo_matrix_is_identity (&surface->ctm);
+}
+
+void
+_cairo_analysis_surface_get_ctm (cairo_surface_t *abstract_surface,
+				 cairo_matrix_t  *ctm)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    *ctm = surface->ctm;
+}
+
+
+cairo_region_t *
+_cairo_analysis_surface_get_supported (cairo_surface_t *abstract_surface)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    return &surface->supported_region;
+}
+
+cairo_region_t *
+_cairo_analysis_surface_get_unsupported (cairo_surface_t *abstract_surface)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    return &surface->fallback_region;
+}
+
+cairo_bool_t
+_cairo_analysis_surface_has_supported (cairo_surface_t *abstract_surface)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    return surface->has_supported;
+}
+
+cairo_bool_t
+_cairo_analysis_surface_has_unsupported (cairo_surface_t *abstract_surface)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    return surface->has_unsupported;
+}
+
+void
+_cairo_analysis_surface_get_bounding_box (cairo_surface_t *abstract_surface,
+					  cairo_box_t     *bbox)
+{
+    cairo_analysis_surface_t	*surface = (cairo_analysis_surface_t *) abstract_surface;
+
+    *bbox = surface->page_bbox;
+}
+
+/* null surface type: a surface that does nothing (has no side effects, yay!) */
+
+static cairo_int_status_t
+_return_success (void)
+{
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/* These typedefs are just to silence the compiler... */
+typedef cairo_int_status_t
+(*_set_clip_region_func)	(void			*surface,
+				 cairo_region_t		*region);
+typedef cairo_int_status_t
+(*_paint_func)			(void			*surface,
+			         cairo_operator_t	 op,
+				 cairo_pattern_t	*source);
+
+typedef cairo_int_status_t
+(*_mask_func)			(void			*surface,
+			         cairo_operator_t	 op,
+				 cairo_pattern_t	*source,
+				 cairo_pattern_t	*mask);
+
+typedef cairo_int_status_t
+(*_stroke_func)			(void			*surface,
+			         cairo_operator_t	 op,
+				 cairo_pattern_t	*source,
+				 cairo_path_fixed_t	*path,
+				 cairo_stroke_style_t	*style,
+				 cairo_matrix_t		*ctm,
+				 cairo_matrix_t		*ctm_inverse,
+				 double			 tolerance,
+				 cairo_antialias_t	 antialias);
+
+typedef cairo_int_status_t
+(*_fill_func)			(void			*surface,
+			         cairo_operator_t	 op,
+				 cairo_pattern_t	*source,
+				 cairo_path_fixed_t	*path,
+				 cairo_fill_rule_t	 fill_rule,
+				 double			 tolerance,
+				 cairo_antialias_t	 antialias);
+
+typedef cairo_int_status_t
+(*_show_glyphs_func)		(void			*surface,
+			         cairo_operator_t	 op,
+				 cairo_pattern_t	*source,
+				 cairo_glyph_t		*glyphs,
+				 int			 num_glyphs,
+				 cairo_scaled_font_t	*scaled_font,
+				 int			*remaining_glyphs);
+
+static const cairo_surface_backend_t cairo_null_surface_backend = {
+    CAIRO_INTERNAL_SURFACE_TYPE_NULL,
+
+    NULL, /* create_similar */
+    NULL, /* finish */
+    NULL, /* acquire_source_image */
+    NULL, /* release_source_image */
+    NULL, /* acquire_dest_image */
+    NULL, /* release_dest_image */
+    NULL, /* clone_similar */
+    NULL, /* composite */
+    NULL, /* fill_rectangles */
+    NULL, /* composite_trapezoids */
+    NULL, /* copy_page */
+    NULL, /* show_page */
+    (_set_clip_region_func) _return_success, /* set_clip_region */
+    NULL, /* intersect_clip_path */
+    NULL, /* get_extents */
+    NULL, /* old_show_glyphs */
+    NULL, /* get_font_options */
+    NULL, /* flush */
+    NULL, /* mark_dirty_rectangle */
+    NULL, /* scaled_font_fini */
+    NULL, /* scaled_glyph_fini */
+    (_paint_func) _return_success,	    /* paint */
+    (_mask_func) _return_success,	    /* mask */
+    (_stroke_func) _return_success,	    /* stroke */
+    (_fill_func) _return_success,	    /* fill */
+    (_show_glyphs_func) _return_success,    /* show_glyphs */
+    NULL, /* snapshot */
+    NULL, /* is_similar */
+    NULL, /* reset */
+    NULL, /* fill_stroke */
+    NULL, /* create_solid_pattern_surface */
+    NULL, /* has_show_text_glyphs */
+    NULL  /* show_text_glyphs */
+};
+
+cairo_surface_t *
+_cairo_null_surface_create (cairo_content_t content)
+{
+    cairo_surface_t *surface;
+
+    surface = malloc (sizeof (cairo_surface_t));
+    if (surface == NULL) {
+	return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+    }
+
+    _cairo_surface_init (surface, &cairo_null_surface_backend, content);
+
+    return surface;
+}

uppdev/plugin/cairo/lib/cairo-arc-private.h

@@ -0,0 +1,57 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#ifndef CAIRO_ARC_PRIVATE_H
+#define CAIRO_ARC_PRIVATE_H
+
+#include "cairoint.h"
+
+cairo_private void
+_cairo_arc_path (cairo_t *cr,
+		 double	  xc,
+		 double	  yc,
+		 double	  radius,
+		 double	  angle1,
+		 double	  angle2);
+
+cairo_private void
+_cairo_arc_path_negative (cairo_t *cr,
+			  double   xc,
+			  double   yc,
+			  double   radius,
+			  double   angle1,
+			  double   angle2);
+
+#endif /* CAIRO_ARC_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-arc.c

@@ -0,0 +1,292 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-arc-private.h"
+
+/* Spline deviation from the circle in radius would be given by:
+
+	error = sqrt (x**2 + y**2) - 1
+
+   A simpler error function to work with is:
+
+	e = x**2 + y**2 - 1
+
+   From "Good approximation of circles by curvature-continuous Bezier
+   curves", Tor Dokken and Morten Daehlen, Computer Aided Geometric
+   Design 8 (1990) 22-41, we learn:
+
+	abs (max(e)) = 4/27 * sin**6(angle/4) / cos**2(angle/4)
+
+   and
+	abs (error) =~ 1/2 * e
+
+   Of course, this error value applies only for the particular spline
+   approximation that is used in _cairo_gstate_arc_segment.
+*/
+static double
+_arc_error_normalized (double angle)
+{
+    return 2.0/27.0 * pow (sin (angle / 4), 6) / pow (cos (angle / 4), 2);
+}
+
+static double
+_arc_max_angle_for_tolerance_normalized (double tolerance)
+{
+    double angle, error;
+    int i;
+
+    /* Use table lookup to reduce search time in most cases. */
+    struct {
+	double angle;
+	double error;
+    } table[] = {
+	{ M_PI / 1.0,   0.0185185185185185036127 },
+	{ M_PI / 2.0,   0.000272567143730179811158 },
+	{ M_PI / 3.0,   2.38647043651461047433e-05 },
+	{ M_PI / 4.0,   4.2455377443222443279e-06 },
+	{ M_PI / 5.0,   1.11281001494389081528e-06 },
+	{ M_PI / 6.0,   3.72662000942734705475e-07 },
+	{ M_PI / 7.0,   1.47783685574284411325e-07 },
+	{ M_PI / 8.0,   6.63240432022601149057e-08 },
+	{ M_PI / 9.0,   3.2715520137536980553e-08 },
+	{ M_PI / 10.0,  1.73863223499021216974e-08 },
+	{ M_PI / 11.0,  9.81410988043554039085e-09 },
+    };
+    int table_size = ARRAY_LENGTH (table);
+
+    for (i = 0; i < table_size; i++)
+	if (table[i].error < tolerance)
+	    return table[i].angle;
+
+    ++i;
+    do {
+	angle = M_PI / i++;
+	error = _arc_error_normalized (angle);
+    } while (error > tolerance);
+
+    return angle;
+}
+
+static int
+_arc_segments_needed (double	      angle,
+		      double	      radius,
+		      cairo_matrix_t *ctm,
+		      double	      tolerance)
+{
+    double major_axis, max_angle;
+
+    /* the error is amplified by at most the length of the
+     * major axis of the circle; see cairo-pen.c for a more detailed analysis
+     * of this. */
+    major_axis = _cairo_matrix_transformed_circle_major_axis (ctm, radius);
+    max_angle = _arc_max_angle_for_tolerance_normalized (tolerance / major_axis);
+
+    return (int) ceil (angle / max_angle);
+}
+
+/* We want to draw a single spline approximating a circular arc radius
+   R from angle A to angle B. Since we want a symmetric spline that
+   matches the endpoints of the arc in position and slope, we know
+   that the spline control points must be:
+
+	(R * cos(A), R * sin(A))
+	(R * cos(A) - h * sin(A), R * sin(A) + h * cos (A))
+	(R * cos(B) + h * sin(B), R * sin(B) - h * cos (B))
+	(R * cos(B), R * sin(B))
+
+   for some value of h.
+
+   "Approximation of circular arcs by cubic poynomials", Michael
+   Goldapp, Computer Aided Geometric Design 8 (1991) 227-238, provides
+   various values of h along with error analysis for each.
+
+   From that paper, a very practical value of h is:
+
+	h = 4/3 * tan(angle/4)
+
+   This value does not give the spline with minimal error, but it does
+   provide a very good approximation, (6th-order convergence), and the
+   error expression is quite simple, (see the comment for
+   _arc_error_normalized).
+*/
+static void
+_cairo_arc_segment (cairo_t *cr,
+		    double   xc,
+		    double   yc,
+		    double   radius,
+		    double   angle_A,
+		    double   angle_B)
+{
+    double r_sin_A, r_cos_A;
+    double r_sin_B, r_cos_B;
+    double h;
+
+    r_sin_A = radius * sin (angle_A);
+    r_cos_A = radius * cos (angle_A);
+    r_sin_B = radius * sin (angle_B);
+    r_cos_B = radius * cos (angle_B);
+
+    h = 4.0/3.0 * tan ((angle_B - angle_A) / 4.0);
+
+    cairo_curve_to (cr,
+		    xc + r_cos_A - h * r_sin_A,
+		    yc + r_sin_A + h * r_cos_A,
+		    xc + r_cos_B + h * r_sin_B,
+		    yc + r_sin_B - h * r_cos_B,
+		    xc + r_cos_B,
+		    yc + r_sin_B);
+}
+
+static void
+_cairo_arc_in_direction (cairo_t	  *cr,
+			 double		   xc,
+			 double		   yc,
+			 double		   radius,
+			 double		   angle_min,
+			 double		   angle_max,
+			 cairo_direction_t dir)
+{
+    if (cairo_status (cr))
+        return;
+
+    while (angle_max - angle_min > 4 * M_PI)
+	angle_max -= 2 * M_PI;
+
+    /* Recurse if drawing arc larger than pi */
+    if (angle_max - angle_min > M_PI) {
+	double angle_mid = angle_min + (angle_max - angle_min) / 2.0;
+	if (dir == CAIRO_DIRECTION_FORWARD) {
+	    _cairo_arc_in_direction (cr, xc, yc, radius,
+				     angle_min, angle_mid,
+				     dir);
+
+	    _cairo_arc_in_direction (cr, xc, yc, radius,
+				     angle_mid, angle_max,
+				     dir);
+	} else {
+	    _cairo_arc_in_direction (cr, xc, yc, radius,
+				     angle_mid, angle_max,
+				     dir);
+
+	    _cairo_arc_in_direction (cr, xc, yc, radius,
+				     angle_min, angle_mid,
+				     dir);
+	}
+    } else if (angle_max != angle_min) {
+	cairo_matrix_t ctm;
+	int i, segments;
+	double angle, angle_step;
+
+	cairo_get_matrix (cr, &ctm);
+	segments = _arc_segments_needed (angle_max - angle_min,
+					 radius, &ctm,
+					 cairo_get_tolerance (cr));
+	angle_step = (angle_max - angle_min) / (double) segments;
+
+	if (dir == CAIRO_DIRECTION_FORWARD) {
+	    angle = angle_min;
+	} else {
+	    angle = angle_max;
+	    angle_step = - angle_step;
+	}
+
+	for (i = 0; i < segments; i++, angle += angle_step) {
+	    _cairo_arc_segment (cr, xc, yc,
+				radius,
+				angle,
+				angle + angle_step);
+	}
+    }
+}
+
+/**
+ * _cairo_arc_path
+ * @cr: a cairo context
+ * @xc: X position of the center of the arc
+ * @yc: Y position of the center of the arc
+ * @radius: the radius of the arc
+ * @angle1: the start angle, in radians
+ * @angle2: the end angle, in radians
+ *
+ * Compute a path for the given arc and append it onto the current
+ * path within @cr. The arc will be accurate within the current
+ * tolerance and given the current transformation.
+ **/
+void
+_cairo_arc_path (cairo_t *cr,
+		 double	  xc,
+		 double	  yc,
+		 double	  radius,
+		 double	  angle1,
+		 double	  angle2)
+{
+    _cairo_arc_in_direction (cr, xc, yc,
+			     radius,
+			     angle1, angle2,
+			     CAIRO_DIRECTION_FORWARD);
+}
+
+/**
+ * _cairo_arc_path_negative:
+ * @xc: X position of the center of the arc
+ * @yc: Y position of the center of the arc
+ * @radius: the radius of the arc
+ * @angle1: the start angle, in radians
+ * @angle2: the end angle, in radians
+ * @ctm: the current transformation matrix
+ * @tolerance: the current tolerance value
+ * @path: the path onto which the arc will be appended
+ *
+ * Compute a path for the given arc (defined in the negative
+ * direction) and append it onto the current path within @cr. The arc
+ * will be accurate within the current tolerance and given the current
+ * transformation.
+ **/
+void
+_cairo_arc_path_negative (cairo_t *cr,
+			  double   xc,
+			  double   yc,
+			  double   radius,
+			  double   angle1,
+			  double   angle2)
+{
+    _cairo_arc_in_direction (cr, xc, yc,
+			     radius,
+			     angle2, angle1,
+			     CAIRO_DIRECTION_REVERSE);
+}

uppdev/plugin/cairo/lib/cairo-array.c

@@ -0,0 +1,492 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+/**
+ * _cairo_array_init:
+ *
+ * Initialize a new #cairo_array_t object to store objects each of size
+ * @element_size.
+ *
+ * The #cairo_array_t object provides grow-by-doubling storage. It
+ * never interprets the data passed to it, nor does it provide any
+ * sort of callback mechanism for freeing resources held onto by
+ * stored objects.
+ *
+ * When finished using the array, _cairo_array_fini() should be
+ * called to free resources allocated during use of the array.
+ **/
+void
+_cairo_array_init (cairo_array_t *array, int element_size)
+{
+    array->size = 0;
+    array->num_elements = 0;
+    array->element_size = element_size;
+    array->elements = NULL;
+
+    array->is_snapshot = FALSE;
+}
+
+/**
+ * _cairo_array_init_snapshot:
+ * @array: A #cairo_array_t to be initialized as a snapshot
+ * @other: The #cairo_array_t from which to create the snapshot
+ *
+ * Initialize @array as an immutable copy of @other. It is an error to
+ * call an array-modifying function (other than _cairo_array_fini) on
+ * @array after calling this function.
+ **/
+void
+_cairo_array_init_snapshot (cairo_array_t	*array,
+			    const cairo_array_t *other)
+{
+    array->size = other->size;
+    array->num_elements = other->num_elements;
+    array->element_size = other->element_size;
+    array->elements = other->elements;
+
+    array->is_snapshot = TRUE;
+}
+
+/**
+ * _cairo_array_fini:
+ * @array: A #cairo_array_t
+ *
+ * Free all resources associated with @array. After this call, @array
+ * should not be used again without a subsequent call to
+ * _cairo_array_init() again first.
+ **/
+void
+_cairo_array_fini (cairo_array_t *array)
+{
+    if (array->is_snapshot)
+	return;
+
+    if (array->elements) {
+	free (* array->elements);
+	free (array->elements);
+    }
+}
+
+/**
+ * _cairo_array_grow_by:
+ * @array: a #cairo_array_t
+ *
+ * Increase the size of @array (if needed) so that there are at least
+ * @additional free spaces in the array. The actual size of the array
+ * is always increased by doubling as many times as necessary.
+ **/
+cairo_status_t
+_cairo_array_grow_by (cairo_array_t *array, unsigned int additional)
+{
+    char *new_elements;
+    unsigned int old_size = array->size;
+    unsigned int required_size = array->num_elements + additional;
+    unsigned int new_size;
+
+    assert (! array->is_snapshot);
+
+    /* check for integer overflow */
+    if (required_size > INT_MAX || required_size < array->num_elements)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    if (required_size <= old_size)
+	return CAIRO_STATUS_SUCCESS;
+
+    if (old_size == 0)
+	new_size = 1;
+    else
+	new_size = old_size * 2;
+
+    while (new_size < required_size)
+	new_size = new_size * 2;
+
+    if (array->elements == NULL) {
+	array->elements = malloc (sizeof (char *));
+	if (array->elements == NULL)
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+	*array->elements = NULL;
+    }
+
+    array->size = new_size;
+    new_elements = _cairo_realloc_ab (*array->elements,
+			              array->size, array->element_size);
+
+    if (new_elements == NULL) {
+	array->size = old_size;
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+    }
+
+    *array->elements = new_elements;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_array_truncate:
+ * @array: a #cairo_array_t
+ *
+ * Truncate size of the array to @num_elements if less than the
+ * current size. No memory is actually freed. The stored objects
+ * beyond @num_elements are simply "forgotten".
+ **/
+void
+_cairo_array_truncate (cairo_array_t *array, unsigned int num_elements)
+{
+    assert (! array->is_snapshot);
+
+    if (num_elements < array->num_elements)
+	array->num_elements = num_elements;
+}
+
+/**
+ * _cairo_array_index:
+ * @array: a #cairo_array_t
+ * Returns: A pointer to the object stored at @index.
+ *
+ * If the resulting value is assigned to a pointer to an object of the same
+ * element_size as initially passed to _cairo_array_init() then that
+ * pointer may be used for further direct indexing with []. For
+ * example:
+ *
+ * <informalexample><programlisting>
+ *	cairo_array_t array;
+ *	double *values;
+ *
+ *	_cairo_array_init (&array, sizeof(double));
+ *	... calls to _cairo_array_append() here ...
+ *
+ *	values = _cairo_array_index (&array, 0);
+ *      for (i = 0; i < _cairo_array_num_elements (&array); i++)
+ *	    ... use values[i] here ...
+ * </programlisting></informalexample>
+ **/
+void *
+_cairo_array_index (cairo_array_t *array, unsigned int index)
+{
+    /* We allow an index of 0 for the no-elements case.
+     * This makes for cleaner calling code which will often look like:
+     *
+     *    elements = _cairo_array_index (array, num_elements);
+     *	  for (i=0; i < num_elements; i++) {
+     *        ... use elements[i] here ...
+     *    }
+     *
+     * which in the num_elements==0 case gets the NULL pointer here,
+     * but never dereferences it.
+     */
+    if (index == 0 && array->num_elements == 0)
+	return NULL;
+
+    assert (index < array->num_elements);
+
+    return (void *) &(*array->elements)[index * array->element_size];
+}
+
+/**
+ * _cairo_array_copy_element:
+ * @array: a #cairo_array_t
+ *
+ * Copy a single element out of the array from index @index into the
+ * location pointed to by @dst.
+ **/
+void
+_cairo_array_copy_element (cairo_array_t *array, int index, void *dst)
+{
+    memcpy (dst, _cairo_array_index (array, index), array->element_size);
+}
+
+/**
+ * _cairo_array_append:
+ * @array: a #cairo_array_t
+ *
+ * Append a single item onto the array by growing the array by at
+ * least one element, then copying element_size bytes from @element
+ * into the array. The address of the resulting object within the
+ * array can be determined with:
+ *
+ * _cairo_array_index (array, _cairo_array_num_elements (array) - 1);
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available for the
+ * operation.
+ **/
+cairo_status_t
+_cairo_array_append (cairo_array_t	*array,
+		     const void		*element)
+{
+    assert (! array->is_snapshot);
+
+    return _cairo_array_append_multiple (array, element, 1);
+}
+
+/**
+ * _cairo_array_append:
+ * @array: a #cairo_array_t
+ *
+ * Append one or more items onto the array by growing the array by
+ * @num_elements, then copying @num_elements * element_size bytes from
+ * @elements into the array.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available for the
+ * operation.
+ **/
+cairo_status_t
+_cairo_array_append_multiple (cairo_array_t	*array,
+			      const void	*elements,
+			      int		 num_elements)
+{
+    cairo_status_t status;
+    void *dest;
+
+    assert (! array->is_snapshot);
+
+    status = _cairo_array_allocate (array, num_elements, &dest);
+    if (status)
+	return status;
+
+    memcpy (dest, elements, num_elements * array->element_size);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_array_allocate:
+ * @array: a #cairo_array_t
+ *
+ * Allocate space at the end of the array for @num_elements additional
+ * elements, providing the address of the new memory chunk in
+ * @elements. This memory will be unitialized, but will be accounted
+ * for in the return value of _cairo_array_num_elements().
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available for the
+ * operation.
+ **/
+cairo_status_t
+_cairo_array_allocate (cairo_array_t	 *array,
+		       unsigned int	  num_elements,
+		       void		**elements)
+{
+    cairo_status_t status;
+
+    assert (! array->is_snapshot);
+
+    status = _cairo_array_grow_by (array, num_elements);
+    if (status)
+	return status;
+
+    assert (array->num_elements + num_elements <= array->size);
+
+    *elements = &(*array->elements)[array->num_elements * array->element_size];
+
+    array->num_elements += num_elements;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_array_num_elements:
+ * @array: a #cairo_array_t
+ * Returns: The number of elements stored in @array.
+ *
+ * This space was left intentionally blank, but gtk-doc filled it.
+ **/
+int
+_cairo_array_num_elements (cairo_array_t *array)
+{
+    return array->num_elements;
+}
+
+/**
+ * _cairo_array_size:
+ * @array: a #cairo_array_t
+ * Returns: The number of elements for which there is currently space
+ * allocated in @array.
+ *
+ * This space was left intentionally blank, but gtk-doc filled it.
+ **/
+int
+_cairo_array_size (cairo_array_t *array)
+{
+    return array->size;
+}
+
+/* #cairo_user_data_array_t */
+
+typedef struct {
+    const cairo_user_data_key_t *key;
+    void *user_data;
+    cairo_destroy_func_t destroy;
+} cairo_user_data_slot_t;
+
+/**
+ * _cairo_user_data_array_init:
+ * @array: a #cairo_user_data_array_t
+ *
+ * Initializes a #cairo_user_data_array_t structure for future
+ * use. After initialization, the array has no keys. Call
+ * _cairo_user_data_array_fini() to free any allocated memory
+ * when done using the array.
+ **/
+void
+_cairo_user_data_array_init (cairo_user_data_array_t *array)
+{
+    _cairo_array_init (array, sizeof (cairo_user_data_slot_t));
+}
+
+/**
+ * _cairo_user_data_array_fini:
+ * @array: a #cairo_user_data_array_t
+ *
+ * Destroys all current keys in the user data array and deallocates
+ * any memory allocated for the array itself.
+ **/
+void
+_cairo_user_data_array_fini (cairo_user_data_array_t *array)
+{
+    int i, num_slots;
+    cairo_user_data_slot_t *slots;
+
+    num_slots = array->num_elements;
+    slots = _cairo_array_index (array, 0);
+    for (i = 0; i < num_slots; i++) {
+	if (slots[i].user_data != NULL && slots[i].destroy != NULL)
+	    slots[i].destroy (slots[i].user_data);
+    }
+
+    _cairo_array_fini (array);
+}
+
+/**
+ * _cairo_user_data_array_get_data:
+ * @array: a #cairo_user_data_array_t
+ * @key: the address of the #cairo_user_data_key_t the user data was
+ * attached to
+ *
+ * Returns user data previously attached using the specified
+ * key.  If no user data has been attached with the given key this
+ * function returns %NULL.
+ *
+ * Return value: the user data previously attached or %NULL.
+ **/
+void *
+_cairo_user_data_array_get_data (cairo_user_data_array_t     *array,
+				 const cairo_user_data_key_t *key)
+{
+    int i, num_slots;
+    cairo_user_data_slot_t *slots;
+
+    /* We allow this to support degenerate objects such as cairo_surface_nil. */
+    if (array == NULL)
+	return NULL;
+
+    num_slots = array->num_elements;
+    slots = _cairo_array_index (array, 0);
+    for (i = 0; i < num_slots; i++) {
+	if (slots[i].key == key)
+	    return slots[i].user_data;
+    }
+
+    return NULL;
+}
+
+/**
+ * _cairo_user_data_array_set_data:
+ * @array: a #cairo_user_data_array_t
+ * @key: the address of a #cairo_user_data_key_t to attach the user data to
+ * @user_data: the user data to attach
+ * @destroy: a #cairo_destroy_func_t which will be called when the
+ * user data array is destroyed or when new user data is attached using the
+ * same key.
+ *
+ * Attaches user data to a user data array.  To remove user data,
+ * call this function with the key that was used to set it and %NULL
+ * for @data.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a
+ * slot could not be allocated for the user data.
+ **/
+cairo_status_t
+_cairo_user_data_array_set_data (cairo_user_data_array_t     *array,
+				 const cairo_user_data_key_t *key,
+				 void			     *user_data,
+				 cairo_destroy_func_t	      destroy)
+{
+    cairo_status_t status;
+    int i, num_slots;
+    cairo_user_data_slot_t *slots, *slot, new_slot;
+
+    if (user_data) {
+	new_slot.key = key;
+	new_slot.user_data = user_data;
+	new_slot.destroy = destroy;
+    } else {
+	new_slot.key = NULL;
+	new_slot.user_data = NULL;
+	new_slot.destroy = NULL;
+    }
+
+    slot = NULL;
+    num_slots = array->num_elements;
+    slots = _cairo_array_index (array, 0);
+    for (i = 0; i < num_slots; i++) {
+	if (slots[i].key == key) {
+	    slot = &slots[i];
+	    if (slot->destroy && slot->user_data)
+		slot->destroy (slot->user_data);
+	    break;
+	}
+	if (user_data && slots[i].user_data == NULL) {
+	    slot = &slots[i];	/* Have to keep searching for an exact match */
+	}
+    }
+
+    if (slot) {
+	*slot = new_slot;
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    status = _cairo_array_append (array, &new_slot);
+    if (status)
+	return status;
+
+    return CAIRO_STATUS_SUCCESS;
+}

uppdev/plugin/cairo/lib/cairo-atomic-private.h

@@ -0,0 +1,104 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Chris Wilson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#ifndef CAIRO_ATOMIC_PRIVATE_H
+#define CAIRO_ATOMIC_PRIVATE_H
+
+# include "cairo-compiler-private.h"
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+CAIRO_BEGIN_DECLS
+
+#if HAVE_INTEL_ATOMIC_PRIMITIVES
+
+#define HAS_ATOMIC_OPS 1
+
+typedef int cairo_atomic_int_t;
+
+# define _cairo_atomic_int_inc(x) ((void) __sync_fetch_and_add(x, 1))
+# define _cairo_atomic_int_dec_and_test(x) (__sync_fetch_and_add(x, -1) == 1)
+# define _cairo_atomic_int_cmpxchg(x, oldv, newv) __sync_val_compare_and_swap (x, oldv, newv)
+
+#endif
+
+
+#ifndef HAS_ATOMIC_OPS
+
+typedef int cairo_atomic_int_t;
+
+cairo_private void
+_cairo_atomic_int_inc (int *x);
+
+cairo_private cairo_bool_t
+_cairo_atomic_int_dec_and_test (int *x);
+
+cairo_private int
+_cairo_atomic_int_cmpxchg (int *x, int oldv, int newv);
+
+#endif
+
+
+#ifdef ATOMIC_OP_NEEDS_MEMORY_BARRIER
+
+# include "cairo-compiler-private.h"
+
+cairo_private int
+_cairo_atomic_int_get (int *x);
+
+cairo_private void
+_cairo_atomic_int_set (int *x, int value);
+
+#else
+
+# define _cairo_atomic_int_get(x) (*x)
+# define _cairo_atomic_int_set(x, value) ((*x) = value)
+
+#endif
+
+
+#define _cairo_status_set_error(status, err) do { \
+    /* hide compiler warnings about cairo_status_t != int (gcc treats its as \
+     * an unsigned integer instead, and about ignoring the return value. */  \
+    int ret__ = _cairo_atomic_int_cmpxchg ((int *) status, CAIRO_STATUS_SUCCESS, err); \
+    (void) ret__; \
+} while (0)
+
+CAIRO_END_DECLS
+
+#endif

uppdev/plugin/cairo/lib/cairo-atomic.c

@@ -0,0 +1,96 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Chris Wilson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * Contributor(s):
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-atomic-private.h"
+#include "cairo-mutex-private.h"
+
+#ifndef HAS_ATOMIC_OPS
+void
+_cairo_atomic_int_inc (int *x)
+{
+    CAIRO_MUTEX_LOCK (_cairo_atomic_mutex);
+    *x += 1;
+    CAIRO_MUTEX_UNLOCK (_cairo_atomic_mutex);
+}
+
+cairo_bool_t
+_cairo_atomic_int_dec_and_test (int *x)
+{
+    cairo_bool_t ret;
+
+    CAIRO_MUTEX_LOCK (_cairo_atomic_mutex);
+    ret = --*x == 0;
+    CAIRO_MUTEX_UNLOCK (_cairo_atomic_mutex);
+
+    return ret;
+}
+
+int
+_cairo_atomic_int_cmpxchg (int *x, int oldv, int newv)
+{
+    int ret;
+
+    CAIRO_MUTEX_LOCK (_cairo_atomic_mutex);
+    ret = *x;
+    if (ret == oldv)
+	*x = newv;
+    CAIRO_MUTEX_UNLOCK (_cairo_atomic_mutex);
+
+    return ret;
+}
+
+#endif
+
+#ifdef ATOMIC_OP_NEEDS_MEMORY_BARRIER
+int
+_cairo_atomic_int_get (int *x)
+{
+    int ret;
+
+    CAIRO_MUTEX_LOCK (_cairo_atomic_mutex);
+    ret = *x;
+    CAIRO_MUTEX_UNLOCK (_cairo_atomic_mutex);
+
+    return ret;
+}
+
+void
+_cairo_atomic_int_set (int *x, int value)
+{
+    CAIRO_MUTEX_LOCK (_cairo_atomic_mutex);
+    *x = value;
+    CAIRO_MUTEX_UNLOCK (_cairo_atomic_mutex);
+}
+#endif

uppdev/plugin/cairo/lib/cairo-base85-stream.c

@@ -0,0 +1,132 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Author(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ */
+
+#include "cairoint.h"
+#include "cairo-output-stream-private.h"
+
+typedef struct _cairo_base85_stream {
+    cairo_output_stream_t base;
+    cairo_output_stream_t *output;
+    unsigned char four_tuple[4];
+    int pending;
+} cairo_base85_stream_t;
+
+static void
+_expand_four_tuple_to_five (unsigned char four_tuple[4],
+			    unsigned char five_tuple[5],
+			    cairo_bool_t *all_zero)
+{
+    uint32_t value;
+    int digit, i;
+
+    value = four_tuple[0] << 24 | four_tuple[1] << 16 | four_tuple[2] << 8 | four_tuple[3];
+    if (all_zero)
+	*all_zero = TRUE;
+    for (i = 0; i < 5; i++) {
+	digit = value % 85;
+	if (digit != 0 && all_zero)
+	    *all_zero = FALSE;
+	five_tuple[4-i] = digit + 33;
+	value = value / 85;
+    }
+}
+
+static cairo_status_t
+_cairo_base85_stream_write (cairo_output_stream_t *base,
+			    const unsigned char	  *data,
+			    unsigned int	   length)
+{
+    cairo_base85_stream_t *stream = (cairo_base85_stream_t *) base;
+    const unsigned char *ptr = data;
+    unsigned char five_tuple[5];
+    cairo_bool_t is_zero;
+
+    while (length) {
+	stream->four_tuple[stream->pending++] = *ptr++;
+	length--;
+	if (stream->pending == 4) {
+	    _expand_four_tuple_to_five (stream->four_tuple, five_tuple, &is_zero);
+	    if (is_zero)
+		_cairo_output_stream_write (stream->output, "z", 1);
+	    else
+		_cairo_output_stream_write (stream->output, five_tuple, 5);
+	    stream->pending = 0;
+	}
+    }
+
+    return _cairo_output_stream_get_status (stream->output);
+}
+
+static cairo_status_t
+_cairo_base85_stream_close (cairo_output_stream_t *base)
+{
+    cairo_base85_stream_t *stream = (cairo_base85_stream_t *) base;
+    unsigned char five_tuple[5];
+
+    if (stream->pending) {
+	memset (stream->four_tuple + stream->pending, 0, 4 - stream->pending);
+	_expand_four_tuple_to_five (stream->four_tuple, five_tuple, NULL);
+	_cairo_output_stream_write (stream->output, five_tuple, stream->pending + 1);
+    }
+
+    /* Mark end of base85 data */
+    _cairo_output_stream_printf (stream->output, "~>");
+
+    return _cairo_output_stream_get_status (stream->output);
+}
+
+cairo_output_stream_t *
+_cairo_base85_stream_create (cairo_output_stream_t *output)
+{
+    cairo_base85_stream_t *stream;
+
+    if (output->status)
+	return _cairo_output_stream_create_in_error (output->status);
+
+    stream = malloc (sizeof (cairo_base85_stream_t));
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base,
+			       _cairo_base85_stream_write,
+			       _cairo_base85_stream_close);
+    stream->output = output;
+    stream->pending = 0;
+
+    return &stream->base;
+}

uppdev/plugin/cairo/lib/cairo-beos.h

@@ -0,0 +1,60 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Christian Biesinger <cbiesinger@web.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Christian Biesinger
+ * <cbiesinger@web.de>
+ *
+ * Contributor(s):
+ */
+
+#ifndef CAIRO_BEOS_H
+#define CAIRO_BEOS_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_BEOS_SURFACE
+
+#include <View.h>
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_beos_surface_create (BView* view);
+
+cairo_public cairo_surface_t *
+cairo_beos_surface_create_for_bitmap (BView*   view,
+				      BBitmap* bmp);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_BEOS_SURFACE */
+# error Cairo was not compiled with support for the beos backend
+#endif /* CAIRO_HAS_BEOS_SURFACE */
+
+#endif /* CAIRO_BEOS_H */

uppdev/plugin/cairo/lib/cairo-cache-private.h

@@ -0,0 +1,126 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc.
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *	Graydon Hoare <graydon@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_CACHE_PRIVATE_H
+#define CAIRO_CACHE_PRIVATE_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-types-private.h"
+
+/**
+ * cairo_cache_entry_t:
+ *
+ * A #cairo_cache_entry_t contains both a key and a value for
+ * #cairo_cache_t. User-derived types for #cairo_cache_entry_t must
+ * have a #cairo_cache_entry_t as their first field. For example:
+ *
+ * 	typedef _my_entry {
+ *	    cairo_cache_entry_t base;
+ *	    ... Remainder of key and value fields here ..
+ *	} my_entry_t;
+ *
+ * which then allows a pointer to my_entry_t to be passed to any of
+ * the #cairo_cache_t functions as follows without requiring a cast:
+ *
+ *	_cairo_cache_insert (cache, &my_entry->base, size);
+ *
+ * IMPORTANT: The caller is responsible for initializing
+ * my_entry->base.hash with a hash code derived from the key.  The
+ * essential property of the hash code is that keys_equal must never
+ * return %TRUE for two keys that have different hashes. The best hash
+ * code will reduce the frequency of two keys with the same code for
+ * which keys_equal returns %FALSE.
+ *
+ * The user must also initialize my_entry->base.size to indicate
+ * the size of the current entry. What units to use for size is
+ * entirely up to the caller, (though the same units must be used for
+ * the max_size parameter passed to _cairo_cache_create()). If all
+ * entries are close to the same size, the simplest thing to do is to
+ * just use units of "entries", (eg. set size==1 in all entries and
+ * set max_size to the number of entries which you want to be saved
+ * in the cache).
+ *
+ * Which parts of the entry make up the "key" and which part make up
+ * the value are entirely up to the caller, (as determined by the
+ * computation going into base.hash as well as the keys_equal
+ * function). A few of the #cairo_cache_t functions accept an entry which
+ * will be used exclusively as a "key", (indicated by a parameter name
+ * of key). In these cases, the value-related fields of the entry need
+ * not be initialized if so desired.
+ **/
+typedef struct _cairo_cache_entry {
+    unsigned long hash;
+    unsigned long size;
+} cairo_cache_entry_t;
+
+typedef cairo_bool_t
+(*cairo_cache_keys_equal_func_t) (const void *key_a, const void *key_b);
+
+typedef void
+(*cairo_cache_callback_func_t) (void *entry,
+				void *closure);
+
+cairo_private cairo_cache_t *
+_cairo_cache_create (cairo_cache_keys_equal_func_t keys_equal,
+		     cairo_destroy_func_t	   entry_destroy,
+		     unsigned long		   max_size);
+
+cairo_private void
+_cairo_cache_destroy (cairo_cache_t *cache);
+
+cairo_private void
+_cairo_cache_freeze (cairo_cache_t *cache);
+
+cairo_private void
+_cairo_cache_thaw (cairo_cache_t *cache);
+
+cairo_private cairo_bool_t
+_cairo_cache_lookup (cairo_cache_t	  *cache,
+		     cairo_cache_entry_t  *key,
+		     cairo_cache_entry_t **entry_return);
+
+cairo_private cairo_status_t
+_cairo_cache_insert (cairo_cache_t	 *cache,
+		     cairo_cache_entry_t *entry);
+
+cairo_private void
+_cairo_cache_foreach (cairo_cache_t 	      	 *cache,
+		      cairo_cache_callback_func_t cache_callback,
+		      void			 *closure);
+
+#endif

uppdev/plugin/cairo/lib/cairo-cache.c

@@ -0,0 +1,363 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc.
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *	Graydon Hoare <graydon@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+static void
+_cairo_cache_remove (cairo_cache_t	 *cache,
+		     cairo_cache_entry_t *entry);
+
+static void
+_cairo_cache_shrink_to_accommodate (cairo_cache_t *cache,
+				   unsigned long  additional);
+
+static cairo_status_t
+_cairo_cache_init (cairo_cache_t		*cache,
+		   cairo_cache_keys_equal_func_t keys_equal,
+		   cairo_destroy_func_t		 entry_destroy,
+		   unsigned long		 max_size)
+{
+    cache->hash_table = _cairo_hash_table_create (keys_equal);
+    if (cache->hash_table == NULL)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    cache->entry_destroy = entry_destroy;
+
+    cache->max_size = max_size;
+    cache->size = 0;
+
+    cache->freeze_count = 0;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_cache_fini (cairo_cache_t *cache)
+{
+    cairo_cache_entry_t *entry;
+
+    /* We have to manually remove all entries from the cache ourselves
+     * rather than relying on _cairo_hash_table_destroy() to do that
+     * since otherwise the cache->entry_destroy callback would not get
+     * called on each entry. */
+
+    while (1) {
+	entry = _cairo_hash_table_random_entry (cache->hash_table, NULL);
+	if (entry == NULL)
+	    break;
+	_cairo_cache_remove (cache, entry);
+    }
+
+    _cairo_hash_table_destroy (cache->hash_table);
+    cache->size = 0;
+}
+
+/**
+ * _cairo_cache_create:
+ * @keys_equal: a function to return %TRUE if two keys are equal
+ * @entry_destroy: destroy notifier for cache entries
+ * @max_size: the maximum size for this cache
+ * Returns: the newly created #cairo_cache_t
+ *
+ * Creates a new cache using the keys_equal() function to determine
+ * the equality of entries.
+ *
+ * Data is provided to the cache in the form of user-derived version
+ * of #cairo_cache_entry_t. A cache entry must be able to hold hash
+ * code, a size, and the key/value pair being stored in the
+ * cache. Sometimes only the key will be necessary, (as in
+ * _cairo_cache_lookup()), and in these cases the value portion of the
+ * entry need not be initialized.
+ *
+ * The units for max_size can be chosen by the caller, but should be
+ * consistent with the units of the size field of cache entries. When
+ * adding an entry with _cairo_cache_insert() if the total size of
+ * entries in the cache would exceed max_size then entries will be
+ * removed at random until the new entry would fit or the cache is
+ * empty. Then the new entry is inserted.
+ *
+ * There are cases in which the automatic removal of entries is
+ * undesired. If the cache entries have reference counts, then it is a
+ * simple matter to use the reference counts to ensure that entries
+ * continue to live even after being ejected from the cache. However,
+ * in some cases the memory overhead of adding a reference count to
+ * the entry would be objectionable. In such cases, the
+ * _cairo_cache_freeze() and _cairo_cache_thaw() calls can be
+ * used to establish a window during which no automatic removal of
+ * entries will occur.
+ **/
+cairo_cache_t *
+_cairo_cache_create (cairo_cache_keys_equal_func_t keys_equal,
+		     cairo_destroy_func_t	   entry_destroy,
+		     unsigned long		   max_size)
+{
+    cairo_status_t status;
+    cairo_cache_t *cache;
+
+    cache = malloc (sizeof (cairo_cache_t));
+    if (cache == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	return NULL;
+    }
+
+    status = _cairo_cache_init (cache, keys_equal, entry_destroy, max_size);
+    if (status) {
+	free (cache);
+	return NULL;
+    }
+
+    return cache;
+}
+
+/**
+ * _cairo_cache_destroy:
+ * @cache: a cache to destroy
+ *
+ * Immediately destroys the given cache, freeing all resources
+ * associated with it. As part of this process, the entry_destroy()
+ * function, (as passed to _cairo_cache_create()), will be called for
+ * each entry in the cache.
+ **/
+void
+_cairo_cache_destroy (cairo_cache_t *cache)
+{
+    _cairo_cache_fini (cache);
+
+    free (cache);
+}
+
+/**
+ * _cairo_cache_freeze:
+ * @cache: a cache with some precious entries in it (or about to be
+ * added)
+ *
+ * Disable the automatic ejection of entries from the cache. For as
+ * long as the cache is "frozen", calls to _cairo_cache_insert() will
+ * add new entries to the cache regardless of how large the cache
+ * grows. See _cairo_cache_thaw().
+ *
+ * Note: Multiple calls to _cairo_cache_freeze() will stack, in that
+ * the cache will remain "frozen" until a corresponding number of
+ * calls are made to _cairo_cache_thaw().
+ **/
+void
+_cairo_cache_freeze (cairo_cache_t *cache)
+{
+    assert (cache->freeze_count >= 0);
+
+    cache->freeze_count++;
+}
+
+/**
+ * _cairo_cache_thaw:
+ * @cache: a cache, just after the entries in it have become less
+ * precious
+ *
+ * Cancels the effects of _cairo_cache_freeze().
+ *
+ * When a number of calls to _cairo_cache_thaw() is made corresponding
+ * to the number of calls to _cairo_cache_freeze() the cache will no
+ * longer be "frozen". If the cache had grown larger than max_size
+ * while frozen, entries will immediately be ejected (by random) from
+ * the cache until the cache is smaller than max_size. Also, the
+ * automatic ejection of entries on _cairo_cache_insert() will resume.
+ **/
+void
+_cairo_cache_thaw (cairo_cache_t *cache)
+{
+    assert (cache->freeze_count > 0);
+
+    cache->freeze_count--;
+
+    if (cache->freeze_count == 0)
+	_cairo_cache_shrink_to_accommodate (cache, 0);
+}
+
+/**
+ * _cairo_cache_lookup:
+ * @cache: a cache
+ * @key: the key of interest
+ * @entry_return: pointer for return value
+ *
+ * Performs a lookup in @cache looking for an entry which has a key
+ * that matches @key, (as determined by the keys_equal() function
+ * passed to _cairo_cache_create()).
+ *
+ * Return value: %TRUE if there is an entry in the cache that matches
+ * @key, (which will now be in *entry_return). %FALSE otherwise, (in
+ * which case *entry_return will be %NULL).
+ **/
+cairo_bool_t
+_cairo_cache_lookup (cairo_cache_t	  *cache,
+		     cairo_cache_entry_t  *key,
+		     cairo_cache_entry_t **entry_return)
+{
+    return _cairo_hash_table_lookup (cache->hash_table,
+				     (cairo_hash_entry_t *) key,
+				     (cairo_hash_entry_t **) entry_return);
+}
+
+/**
+ * _cairo_cache_remove_random:
+ * @cache: a cache
+ *
+ * Remove a random entry from the cache.
+ *
+ * Return value: %TRUE if an entry was successfully removed.
+ * %FALSE if there are no entries that can be removed.
+ **/
+static cairo_bool_t
+_cairo_cache_remove_random (cairo_cache_t *cache)
+{
+    cairo_cache_entry_t *entry;
+
+    entry = _cairo_hash_table_random_entry (cache->hash_table, NULL);
+    if (entry == NULL)
+	return FALSE;
+
+    _cairo_cache_remove (cache, entry);
+
+    return TRUE;
+}
+
+/**
+ * _cairo_cache_shrink_to_accommodate:
+ * @cache: a cache
+ * @additional: additional size requested in bytes
+ *
+ * If cache is not frozen, eject entries randomly until the size of
+ * the cache is at least @additional bytes less than
+ * cache->max_size. That is, make enough room to accommodate a new
+ * entry of size @additional.
+ **/
+static void
+_cairo_cache_shrink_to_accommodate (cairo_cache_t *cache,
+				    unsigned long  additional)
+{
+    if (cache->freeze_count)
+	return;
+
+    while (cache->size + additional > cache->max_size) {
+	if (! _cairo_cache_remove_random (cache))
+	    return;
+    }
+}
+
+/**
+ * _cairo_cache_insert:
+ * @cache: a cache
+ * @entry: an entry to be inserted
+ *
+ * Insert @entry into the cache. If an entry exists in the cache with
+ * a matching key, then the old entry will be removed first, (and the
+ * entry_destroy() callback will be called on it).
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available.
+ **/
+cairo_status_t
+_cairo_cache_insert (cairo_cache_t	 *cache,
+		     cairo_cache_entry_t *entry)
+{
+    cairo_status_t status;
+
+    _cairo_cache_shrink_to_accommodate (cache, entry->size);
+
+    status = _cairo_hash_table_insert (cache->hash_table,
+				       (cairo_hash_entry_t *) entry);
+    if (status)
+	return status;
+
+    cache->size += entry->size;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_cache_remove:
+ * @cache: a cache
+ * @entry: an entry that exists in the cache
+ *
+ * Remove an existing entry from the cache.
+ *
+ * (Note: If any caller wanted access to a non-static version of this
+ * function, an improved version would require only a key rather than
+ * an entry. Fixing that would require fixing _cairo_hash_table_remove
+ * to return (a copy of?) the entry being removed.)
+ **/
+static void
+_cairo_cache_remove (cairo_cache_t	 *cache,
+		     cairo_cache_entry_t *entry)
+{
+    cache->size -= entry->size;
+
+    _cairo_hash_table_remove (cache->hash_table,
+			      (cairo_hash_entry_t *) entry);
+
+    if (cache->entry_destroy)
+	cache->entry_destroy (entry);
+}
+
+/**
+ * _cairo_cache_foreach:
+ * @cache: a cache
+ * @cache_callback: function to be called for each entry
+ * @closure: additional argument to be passed to @cache_callback
+ *
+ * Call @cache_callback for each entry in the cache, in a
+ * non-specified order.
+ **/
+void
+_cairo_cache_foreach (cairo_cache_t	 	      *cache,
+		      cairo_cache_callback_func_t      cache_callback,
+		      void			      *closure)
+{
+    _cairo_hash_table_foreach (cache->hash_table,
+			       cache_callback,
+			       closure);
+}
+
+unsigned long
+_cairo_hash_string (const char *c)
+{
+    /* This is the djb2 hash. */
+    unsigned long hash = 5381;
+    while (c && *c)
+	hash = ((hash << 5) + hash) + *c++;
+    return hash;
+}

uppdev/plugin/cairo/lib/cairo-clip-private.h

@@ -0,0 +1,136 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ */
+
+#ifndef CAIRO_CLIP_PRIVATE_H
+#define CAIRO_CLIP_PRIVATE_H
+
+#include "cairo-types-private.h"
+#include "cairo-compiler-private.h"
+#include "cairo-path-fixed-private.h"
+#include "cairo-reference-count-private.h"
+#include "cairo-region-private.h"
+
+extern const cairo_private cairo_rectangle_list_t _cairo_rectangles_nil;
+
+struct _cairo_clip_path {
+    cairo_reference_count_t	 ref_count;
+    cairo_path_fixed_t		 path;
+    cairo_fill_rule_t		 fill_rule;
+    double			 tolerance;
+    cairo_antialias_t		 antialias;
+    cairo_clip_path_t		*prev;
+};
+
+struct _cairo_clip {
+    cairo_clip_mode_t mode;
+
+    cairo_bool_t all_clipped;
+
+    /*
+     * Mask-based clipping for cases where the backend
+     * clipping isn't sufficiently able.
+     *
+     * The rectangle here represents the
+     * portion of the destination surface that this
+     * clip surface maps to, it does not
+     * represent the extents of the clip region or
+     * clip paths
+     */
+    cairo_surface_t *surface;
+    cairo_rectangle_int_t surface_rect;
+    /*
+     * Surface clip serial number to store
+     * in the surface when this clip is set
+     */
+    unsigned int serial;
+    /*
+     * A clip region that can be placed in the surface
+     */
+    cairo_region_t region;
+    cairo_bool_t has_region;
+    /*
+     * If the surface supports path clipping, we store the list of
+     * clipping paths that has been set here as a linked list.
+     */
+    cairo_clip_path_t *path;
+};
+
+cairo_private void
+_cairo_clip_init (cairo_clip_t *clip, cairo_surface_t *target);
+
+cairo_private cairo_status_t
+_cairo_clip_init_copy (cairo_clip_t *clip, cairo_clip_t *other);
+
+cairo_private cairo_status_t
+_cairo_clip_init_deep_copy (cairo_clip_t    *clip,
+                            cairo_clip_t    *other,
+                            cairo_surface_t *target);
+
+cairo_private void
+_cairo_clip_reset (cairo_clip_t *clip);
+
+cairo_private cairo_status_t
+_cairo_clip_clip (cairo_clip_t       *clip,
+		  cairo_path_fixed_t *path,
+		  cairo_fill_rule_t   fill_rule,
+		  double              tolerance,
+		  cairo_antialias_t   antialias,
+		  cairo_surface_t    *target);
+
+cairo_private cairo_status_t
+_cairo_clip_intersect_to_rectangle (cairo_clip_t            *clip,
+				    cairo_rectangle_int_t   *rectangle);
+
+cairo_private cairo_status_t
+_cairo_clip_intersect_to_region (cairo_clip_t      *clip,
+				 cairo_region_t *region);
+
+cairo_private cairo_status_t
+_cairo_clip_combine_to_surface (cairo_clip_t                  *clip,
+				cairo_operator_t               op,
+				cairo_surface_t               *dst,
+				int                            dst_x,
+				int                            dst_y,
+				const cairo_rectangle_int_t   *extents);
+
+cairo_private void
+_cairo_clip_translate (cairo_clip_t  *clip,
+                       cairo_fixed_t  tx,
+                       cairo_fixed_t  ty);
+
+cairo_private cairo_rectangle_list_t*
+_cairo_clip_copy_rectangle_list (cairo_clip_t *clip, cairo_gstate_t *gstate);
+
+#endif /* CAIRO_CLIP_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-clip.c

@@ -0,0 +1,858 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Kristian Høgsberg <krh@redhat.com>
+ */
+
+#include "cairoint.h"
+#include "cairo-clip-private.h"
+
+static cairo_clip_path_t *
+_cairo_clip_path_reference (cairo_clip_path_t *clip_path);
+
+static void
+_cairo_clip_path_destroy (cairo_clip_path_t *clip_path);
+
+void
+_cairo_clip_init (cairo_clip_t *clip, cairo_surface_t *target)
+{
+    if (target)
+	clip->mode = _cairo_surface_get_clip_mode (target);
+    else
+	clip->mode = CAIRO_CLIP_MODE_MASK;
+
+    clip->all_clipped = FALSE;
+
+    clip->surface = NULL;
+    clip->surface_rect.x = 0;
+    clip->surface_rect.y = 0;
+    clip->surface_rect.width  = 0;
+    clip->surface_rect.height = 0;
+
+    clip->serial = 0;
+
+    _cairo_region_init (&clip->region);
+    clip->has_region = FALSE;
+
+    clip->path = NULL;
+}
+
+cairo_status_t
+_cairo_clip_init_copy (cairo_clip_t *clip, cairo_clip_t *other)
+{
+    clip->mode = other->mode;
+
+    clip->all_clipped = other->all_clipped;
+
+    clip->surface = cairo_surface_reference (other->surface);
+    clip->surface_rect = other->surface_rect;
+
+    clip->serial = other->serial;
+
+    _cairo_region_init (&clip->region);
+
+    if (other->has_region) {
+	cairo_status_t status;
+
+	status = _cairo_region_copy (&clip->region, &other->region);
+	if (status) {
+	    _cairo_region_fini (&clip->region);
+	    cairo_surface_destroy (clip->surface);
+	    return status;
+	}
+        clip->has_region = TRUE;
+    } else {
+        clip->has_region = FALSE;
+    }
+
+    clip->path = _cairo_clip_path_reference (other->path);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_clip_reset (cairo_clip_t *clip)
+{
+    clip->all_clipped = FALSE;
+
+    /* destroy any existing clip-region artifacts */
+    cairo_surface_destroy (clip->surface);
+    clip->surface = NULL;
+
+    clip->serial = 0;
+
+    if (clip->has_region) {
+        /* _cairo_region_fini just releases the resources used but
+         * doesn't bother with leaving the region in a valid state.
+         * So _cairo_region_init has to be called afterwards. */
+	_cairo_region_fini (&clip->region);
+        _cairo_region_init (&clip->region);
+
+        clip->has_region = FALSE;
+    }
+
+    _cairo_clip_path_destroy (clip->path);
+    clip->path = NULL;
+}
+
+static void
+_cairo_clip_set_all_clipped (cairo_clip_t *clip, cairo_surface_t *target)
+{
+    _cairo_clip_reset (clip);
+
+    clip->all_clipped = TRUE;
+    clip->serial = _cairo_surface_allocate_clip_serial (target);
+}
+
+
+static cairo_status_t
+_cairo_clip_path_intersect_to_rectangle (cairo_clip_path_t       *clip_path,
+				         cairo_rectangle_int_t   *rectangle)
+{
+    while (clip_path) {
+        cairo_status_t status;
+        cairo_traps_t traps;
+        cairo_box_t extents;
+        cairo_rectangle_int_t extents_rect;
+
+	_cairo_box_from_rectangle (&extents, rectangle);
+
+        _cairo_traps_init (&traps);
+	_cairo_traps_limit (&traps, &extents);
+
+        status = _cairo_path_fixed_fill_to_traps (&clip_path->path,
+                                                  clip_path->fill_rule,
+                                                  clip_path->tolerance,
+                                                  &traps);
+        if (status) {
+            _cairo_traps_fini (&traps);
+            return status;
+        }
+
+        _cairo_traps_extents (&traps, &extents);
+        _cairo_traps_fini (&traps);
+
+        _cairo_box_round_to_rectangle (&extents, &extents_rect);
+        if (! _cairo_rectangle_intersect (rectangle, &extents_rect))
+	    return CAIRO_STATUS_SUCCESS;
+
+        clip_path = clip_path->prev;
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_status_t
+_cairo_clip_intersect_to_rectangle (cairo_clip_t            *clip,
+				    cairo_rectangle_int_t *rectangle)
+{
+    cairo_status_t status;
+    cairo_bool_t is_empty;
+
+    if (!clip)
+	return CAIRO_STATUS_SUCCESS;
+
+    if (clip->all_clipped) {
+	*rectangle = clip->surface_rect;
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    if (clip->path) {
+        status = _cairo_clip_path_intersect_to_rectangle (clip->path,
+                                                          rectangle);
+        if (status)
+            return status;
+    }
+
+    if (clip->has_region) {
+	cairo_region_t intersection;
+
+	_cairo_region_init_rect (&intersection, rectangle);
+
+	status = _cairo_region_intersect (&intersection, &clip->region,
+					  &intersection);
+
+	if (!status)
+	    _cairo_region_get_extents (&intersection, rectangle);
+
+        _cairo_region_fini (&intersection);
+
+        if (status)
+            return status;
+    }
+
+    if (clip->surface)
+	is_empty = _cairo_rectangle_intersect (rectangle, &clip->surface_rect);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_status_t
+_cairo_clip_intersect_to_region (cairo_clip_t      *clip,
+				 cairo_region_t *region)
+{
+    cairo_status_t status;
+
+    if (!clip)
+	return CAIRO_STATUS_SUCCESS;
+
+    if (clip->all_clipped) {
+	cairo_region_t clip_rect;
+
+	_cairo_region_init_rect (&clip_rect, &clip->surface_rect);
+
+	status = _cairo_region_intersect (region, &clip_rect, region);
+
+	_cairo_region_fini (&clip_rect);
+
+	return status;
+    }
+
+    if (clip->path) {
+	/* Intersect clip path into region. */
+    }
+
+    if (clip->has_region) {
+	status = _cairo_region_intersect (region, &clip->region, region);
+	if (status)
+	    return status;
+    }
+
+    if (clip->surface) {
+	cairo_region_t clip_rect;
+
+	_cairo_region_init_rect (&clip_rect, &clip->surface_rect);
+
+	status = _cairo_region_intersect (region, &clip_rect, region);
+
+	_cairo_region_fini (&clip_rect);
+
+        if (status)
+            return status;
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/* Combines the region of clip->surface given by extents in
+ * device backend coordinates into the given temporary surface,
+ * which has its origin at dst_x, dst_y in backend coordinates
+ */
+cairo_status_t
+_cairo_clip_combine_to_surface (cairo_clip_t                  *clip,
+				cairo_operator_t              op,
+				cairo_surface_t               *dst,
+				int                           dst_x,
+				int                           dst_y,
+				const cairo_rectangle_int_t *extents)
+{
+    cairo_surface_pattern_t pattern;
+    cairo_status_t status;
+
+    if (clip->all_clipped)
+	return CAIRO_STATUS_SUCCESS;
+
+    _cairo_pattern_init_for_surface (&pattern, clip->surface);
+
+    status = _cairo_surface_composite (op,
+				       &pattern.base,
+				       NULL,
+				       dst,
+				       extents->x - clip->surface_rect.x,
+				       extents->y - clip->surface_rect.y,
+				       0, 0,
+				       extents->x - dst_x,
+				       extents->y - dst_y,
+				       extents->width, extents->height);
+
+    _cairo_pattern_fini (&pattern.base);
+
+    return status;
+}
+
+static cairo_status_t
+_cairo_clip_intersect_path (cairo_clip_t       *clip,
+			    cairo_path_fixed_t *path,
+			    cairo_fill_rule_t   fill_rule,
+			    double              tolerance,
+			    cairo_antialias_t   antialias)
+{
+    cairo_clip_path_t *clip_path;
+    cairo_status_t status;
+
+    if (clip->mode != CAIRO_CLIP_MODE_PATH)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    clip_path = malloc (sizeof (cairo_clip_path_t));
+    if (clip_path == NULL)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    status = _cairo_path_fixed_init_copy (&clip_path->path, path);
+    if (status) {
+	free (clip_path);
+	return status;
+    }
+
+    CAIRO_REFERENCE_COUNT_INIT (&clip_path->ref_count, 1);
+    clip_path->fill_rule = fill_rule;
+    clip_path->tolerance = tolerance;
+    clip_path->antialias = antialias;
+    clip_path->prev = clip->path;
+    clip->path = clip_path;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_clip_path_t *
+_cairo_clip_path_reference (cairo_clip_path_t *clip_path)
+{
+    if (clip_path == NULL)
+	return NULL;
+
+    assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&clip_path->ref_count));
+
+    _cairo_reference_count_inc (&clip_path->ref_count);
+
+    return clip_path;
+}
+
+static void
+_cairo_clip_path_destroy (cairo_clip_path_t *clip_path)
+{
+    if (clip_path == NULL)
+	return;
+
+    assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&clip_path->ref_count));
+
+    if (! _cairo_reference_count_dec_and_test (&clip_path->ref_count))
+	return;
+
+    _cairo_path_fixed_fini (&clip_path->path);
+    _cairo_clip_path_destroy (clip_path->prev);
+    free (clip_path);
+}
+
+
+static cairo_int_status_t
+_cairo_clip_intersect_region (cairo_clip_t    *clip,
+			      cairo_traps_t   *traps,
+			      cairo_surface_t *target)
+{
+    cairo_region_t region;
+    cairo_int_status_t status;
+
+    if (clip->all_clipped)
+	return CAIRO_STATUS_SUCCESS;
+
+    if (clip->mode != CAIRO_CLIP_MODE_REGION)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    status = _cairo_traps_extract_region (traps, &region);
+
+    if (status)
+	return status;
+
+    if (!clip->has_region) {
+        status = _cairo_region_copy (&clip->region, &region);
+	if (status == CAIRO_STATUS_SUCCESS)
+	    clip->has_region = TRUE;
+    } else {
+	cairo_region_t intersection;
+
+        _cairo_region_init (&intersection);
+
+	status = _cairo_region_intersect (&intersection,
+		                         &clip->region,
+		                         &region);
+
+	if (status == CAIRO_STATUS_SUCCESS)
+	    status = _cairo_region_copy (&clip->region, &intersection);
+
+        _cairo_region_fini (&intersection);
+    }
+
+    clip->serial = _cairo_surface_allocate_clip_serial (target);
+    _cairo_region_fini (&region);
+
+    if (! _cairo_region_not_empty (&clip->region))
+	_cairo_clip_set_all_clipped (clip, target);
+
+    return status;
+}
+
+static cairo_status_t
+_cairo_clip_intersect_mask (cairo_clip_t      *clip,
+			    cairo_traps_t     *traps,
+			    cairo_antialias_t antialias,
+			    cairo_surface_t   *target)
+{
+    cairo_pattern_union_t pattern;
+    cairo_box_t extents;
+    cairo_rectangle_int_t surface_rect, target_rect;
+    cairo_surface_t *surface = NULL;
+    cairo_status_t status;
+
+    if (clip->all_clipped)
+	return CAIRO_STATUS_SUCCESS;
+
+    /* Represent the clip as a mask surface.  We create a new surface
+     * the size of the intersection of the old mask surface and the
+     * extents of the new clip path. */
+
+    _cairo_traps_extents (traps, &extents);
+    _cairo_box_round_to_rectangle (&extents, &surface_rect);
+
+    if (clip->surface != NULL) {
+	if (! _cairo_rectangle_intersect (&surface_rect, &clip->surface_rect))
+	    goto DONE;
+    }
+
+    /* Intersect with the target surface rectangle so we don't use
+     * more memory and time than we need to. */
+    status = _cairo_surface_get_extents (target, &target_rect);
+    if (status == CAIRO_STATUS_SUCCESS) {
+	if (! _cairo_rectangle_intersect (&surface_rect, &target_rect))
+	    goto DONE;
+    }
+
+    if (surface_rect.width == 0 || surface_rect.height == 0)
+	goto DONE;
+
+    _cairo_pattern_init_solid (&pattern.solid, CAIRO_COLOR_WHITE,
+			       CAIRO_CONTENT_COLOR);
+    /* The clipping operation should ideally be something like the following to
+     * avoid having to do as many passes over the data
+
+	if (clip->surface != NULL) {
+	    _cairo_pattern_init_for_surface (&pattern.surface, clip->surface);
+	} else {
+	    _cairo_pattern_init_solid (&pattern.solid, CAIRO_COLOR_WHITE,
+			       CAIRO_CONTENT_COLOR);
+	}
+	status = _cairo_surface_composite_trapezoids (CAIRO_OPERATOR_IN,
+						  &pattern.base,
+						  surface,
+						  antialias,
+						  0, 0,
+						  0, 0,
+						  surface_rect.width,
+						  surface_rect.height,
+						  traps->traps,
+						  traps->num_traps);
+
+	However this operation is not accelerated by pixman
+
+	I believe the best possible operation would probably an unbounded SRC
+	operator.  Using SRC we could potentially avoid having to initialize
+	the surface which would be ideal from an efficiency point of view.
+	However, _cairo_surface_composite_trapezoids (CAIRO_OPERATOR_SOURCE) is
+	bounded by the mask.
+
+    */
+
+    surface = _cairo_surface_create_similar_solid (target,
+						   CAIRO_CONTENT_ALPHA,
+						   surface_rect.width,
+						   surface_rect.height,
+						   CAIRO_COLOR_TRANSPARENT);
+    if (surface->status) {
+	_cairo_pattern_fini (&pattern.base);
+	return surface->status;
+    }
+
+    /* Render the new clipping path into the new mask surface. */
+
+    _cairo_traps_translate (traps, -surface_rect.x, -surface_rect.y);
+
+    status = _cairo_surface_composite_trapezoids (CAIRO_OPERATOR_ADD,
+						  &pattern.base,
+						  surface,
+						  antialias,
+						  0, 0,
+						  0, 0,
+						  surface_rect.width,
+						  surface_rect.height,
+						  traps->traps,
+						  traps->num_traps);
+
+    _cairo_pattern_fini (&pattern.base);
+
+    if (status) {
+	cairo_surface_destroy (surface);
+	return status;
+    }
+
+    /* If there was a clip surface already, combine it with the new
+     * mask surface using the IN operator, so we get the intersection
+     * of the old and new clipping paths. */
+
+    if (clip->surface != NULL) {
+	_cairo_pattern_init_for_surface (&pattern.surface, clip->surface);
+
+	status = _cairo_surface_composite (CAIRO_OPERATOR_IN,
+					   &pattern.base,
+					   NULL,
+					   surface,
+					   surface_rect.x - clip->surface_rect.x,
+					   surface_rect.y - clip->surface_rect.y,
+					   0, 0,
+					   0, 0,
+					   surface_rect.width,
+					   surface_rect.height);
+
+	_cairo_pattern_fini (&pattern.base);
+
+	if (status) {
+	    cairo_surface_destroy (surface);
+	    return status;
+	}
+    }
+
+ DONE:
+    cairo_surface_destroy (clip->surface);
+    clip->surface = surface;
+    clip->surface_rect = surface_rect;
+    clip->serial = _cairo_surface_allocate_clip_serial (target);
+
+    if (surface_rect.width == 0 || surface_rect.height == 0)
+	_cairo_clip_set_all_clipped (clip, target);
+
+    return status;
+}
+
+cairo_status_t
+_cairo_clip_clip (cairo_clip_t       *clip,
+		  cairo_path_fixed_t *path,
+		  cairo_fill_rule_t   fill_rule,
+		  double              tolerance,
+		  cairo_antialias_t   antialias,
+		  cairo_surface_t    *target)
+{
+    cairo_status_t status;
+    cairo_rectangle_int_t rectangle;
+    cairo_traps_t traps;
+
+    if (clip->all_clipped)
+	return CAIRO_STATUS_SUCCESS;
+
+    /* catch the empty clip path */
+    if (! path->has_current_point) {
+	_cairo_clip_set_all_clipped (clip, target);
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    status = _cairo_clip_intersect_path (clip,
+					 path, fill_rule, tolerance,
+					 antialias);
+    if (status == CAIRO_STATUS_SUCCESS)
+        clip->serial = _cairo_surface_allocate_clip_serial (target);
+
+    if (status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    _cairo_traps_init (&traps);
+
+    /* Limit the traps to the target surface
+     * - so we don't add more traps than needed. */
+    status = _cairo_surface_get_extents (target, &rectangle);
+    if (status == CAIRO_STATUS_SUCCESS) {
+	cairo_box_t box;
+
+	_cairo_box_from_rectangle (&box, &rectangle);
+	_cairo_traps_limit (&traps, &box);
+    }
+
+    status = _cairo_path_fixed_fill_to_traps (path,
+					      fill_rule,
+					      tolerance,
+					      &traps);
+    if (status)
+	goto bail;
+
+    status = _cairo_clip_intersect_region (clip, &traps, target);
+    if (status != CAIRO_INT_STATUS_UNSUPPORTED)
+	goto bail;
+
+    status = _cairo_clip_intersect_mask (clip, &traps, antialias, target);
+
+ bail:
+    _cairo_traps_fini (&traps);
+
+    return status;
+}
+
+void
+_cairo_clip_translate (cairo_clip_t  *clip,
+                       cairo_fixed_t  tx,
+                       cairo_fixed_t  ty)
+{
+    if (clip->all_clipped)
+	return;
+
+    if (clip->has_region) {
+        _cairo_region_translate (&clip->region,
+                                 _cairo_fixed_integer_part (tx),
+                                 _cairo_fixed_integer_part (ty));
+    }
+
+    if (clip->surface) {
+        clip->surface_rect.x += _cairo_fixed_integer_part (tx);
+        clip->surface_rect.y += _cairo_fixed_integer_part (ty);
+    }
+
+    if (clip->path) {
+        cairo_clip_path_t *clip_path = clip->path;
+	cairo_matrix_t matrix;
+
+	cairo_matrix_init_translate (&matrix,
+				     _cairo_fixed_to_double (tx),
+				     _cairo_fixed_to_double (ty));
+
+        while (clip_path) {
+            _cairo_path_fixed_transform (&clip_path->path, &matrix);
+            clip_path = clip_path->prev;
+        }
+    }
+}
+
+static cairo_status_t
+_cairo_clip_path_reapply_clip_path (cairo_clip_t      *clip,
+                                    cairo_clip_path_t *clip_path)
+{
+    cairo_status_t status;
+
+    if (clip_path->prev) {
+        status = _cairo_clip_path_reapply_clip_path (clip, clip_path->prev);
+	if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+	    return status;
+    }
+
+    return _cairo_clip_intersect_path (clip,
+                                       &clip_path->path,
+				       clip_path->fill_rule,
+				       clip_path->tolerance,
+				       clip_path->antialias);
+}
+
+cairo_status_t
+_cairo_clip_init_deep_copy (cairo_clip_t    *clip,
+                            cairo_clip_t    *other,
+                            cairo_surface_t *target)
+{
+    cairo_status_t status;
+
+    _cairo_clip_init (clip, target);
+
+    if (other->mode != clip->mode) {
+        /* We should reapply the original clip path in this case, and let
+         * whatever the right handling is happen */
+    } else {
+        if (other->has_region) {
+            status = _cairo_region_copy (&clip->region, &other->region);
+	    if (status)
+		goto BAIL;
+
+	    clip->has_region = TRUE;
+        }
+
+        if (other->surface) {
+	    int dx, dy;
+            status = _cairo_surface_clone_similar (target, other->surface,
+					           0,
+						   0,
+						   other->surface_rect.width,
+						   other->surface_rect.height,
+						   &dx, &dy,
+						   &clip->surface);
+	    if (status)
+		goto BAIL;
+
+            clip->surface_rect = other->surface_rect;
+
+	    /* src offset was 0, so we expect an exact replica of the surface */
+	    assert (dx == 0);
+	    assert (dy == 0);
+        }
+
+        if (other->path) {
+            status = _cairo_clip_path_reapply_clip_path (clip, other->path);
+	    if (status && status != CAIRO_INT_STATUS_UNSUPPORTED)
+		goto BAIL;
+        }
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+
+BAIL:
+    if (clip->has_region)
+	_cairo_region_fini (&clip->region);
+    if (clip->surface)
+	cairo_surface_destroy (clip->surface);
+
+    return status;
+}
+
+const cairo_rectangle_list_t _cairo_rectangles_nil =
+  { CAIRO_STATUS_NO_MEMORY, NULL, 0 };
+static const cairo_rectangle_list_t _cairo_rectangles_not_representable =
+  { CAIRO_STATUS_CLIP_NOT_REPRESENTABLE, NULL, 0 };
+
+static cairo_bool_t
+_cairo_clip_int_rect_to_user (cairo_gstate_t *gstate,
+			      cairo_rectangle_int_t *clip_rect,
+			      cairo_rectangle_t *user_rect)
+{
+    cairo_bool_t is_tight;
+
+    double x1 = clip_rect->x;
+    double y1 = clip_rect->y;
+    double x2 = clip_rect->x + (int) clip_rect->width;
+    double y2 = clip_rect->y + (int) clip_rect->height;
+
+    _cairo_gstate_backend_to_user_rectangle (gstate,
+					     &x1, &y1, &x2, &y2,
+					     &is_tight);
+
+    user_rect->x = x1;
+    user_rect->y = y1;
+    user_rect->width  = x2 - x1;
+    user_rect->height = y2 - y1;
+
+    return is_tight;
+}
+
+cairo_rectangle_list_t *
+_cairo_clip_copy_rectangle_list (cairo_clip_t *clip, cairo_gstate_t *gstate)
+{
+    cairo_rectangle_list_t *list;
+    cairo_rectangle_t *rectangles = NULL;
+    int n_boxes = 0;
+
+    if (clip->all_clipped)
+	goto DONE;
+
+    if (clip->path || clip->surface) {
+	_cairo_error_throw (CAIRO_STATUS_CLIP_NOT_REPRESENTABLE);
+	return (cairo_rectangle_list_t*) &_cairo_rectangles_not_representable;
+    }
+
+    if (clip->has_region) {
+	cairo_box_int_t *boxes;
+        int i;
+
+	if (_cairo_region_get_boxes (&clip->region, &n_boxes, &boxes))
+	    return (cairo_rectangle_list_t*) &_cairo_rectangles_nil;
+
+	if (n_boxes) {
+	    rectangles = _cairo_malloc_ab (n_boxes, sizeof (cairo_rectangle_t));
+	    if (rectangles == NULL) {
+		_cairo_region_boxes_fini (&clip->region, boxes);
+		_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+		return (cairo_rectangle_list_t*) &_cairo_rectangles_nil;
+	    }
+
+	    for (i = 0; i < n_boxes; ++i) {
+               cairo_rectangle_int_t clip_rect;
+
+               clip_rect.x = boxes[i].p1.x;
+               clip_rect.y = boxes[i].p1.y;
+               clip_rect.width  = boxes[i].p2.x - boxes[i].p1.x;
+               clip_rect.height = boxes[i].p2.y - boxes[i].p1.y;
+
+		if (!_cairo_clip_int_rect_to_user(gstate, &clip_rect, &rectangles[i])) {
+		    _cairo_error_throw (CAIRO_STATUS_CLIP_NOT_REPRESENTABLE);
+		    _cairo_region_boxes_fini (&clip->region, boxes);
+		    free (rectangles);
+		    return (cairo_rectangle_list_t*) &_cairo_rectangles_not_representable;
+		}
+	    }
+	}
+
+	_cairo_region_boxes_fini (&clip->region, boxes);
+    } else {
+        cairo_rectangle_int_t extents;
+
+	n_boxes = 1;
+
+	rectangles = malloc(sizeof (cairo_rectangle_t));
+	if (rectangles == NULL) {
+	    _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	    return (cairo_rectangle_list_t*) &_cairo_rectangles_nil;
+	}
+
+	if (_cairo_surface_get_extents (_cairo_gstate_get_target (gstate), &extents) ||
+	    !_cairo_clip_int_rect_to_user(gstate, &extents, rectangles))
+	{
+	    _cairo_error_throw (CAIRO_STATUS_CLIP_NOT_REPRESENTABLE);
+	    free (rectangles);
+	    return (cairo_rectangle_list_t*) &_cairo_rectangles_not_representable;
+	}
+    }
+
+ DONE:
+    list = malloc (sizeof (cairo_rectangle_list_t));
+    if (list == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+        free (rectangles);
+        return (cairo_rectangle_list_t*) &_cairo_rectangles_nil;
+    }
+
+    list->status = CAIRO_STATUS_SUCCESS;
+    list->rectangles = rectangles;
+    list->num_rectangles = n_boxes;
+    return list;
+}
+
+/**
+ * cairo_rectangle_list_destroy:
+ * @rectangle_list: a rectangle list, as obtained from cairo_copy_clip_rectangles()
+ *
+ * Unconditionally frees @rectangle_list and all associated
+ * references. After this call, the @rectangle_list pointer must not
+ * be dereferenced.
+ *
+ * Since: 1.4
+ **/
+void
+cairo_rectangle_list_destroy (cairo_rectangle_list_t *rectangle_list)
+{
+    if (rectangle_list == NULL || rectangle_list == &_cairo_rectangles_nil ||
+        rectangle_list == &_cairo_rectangles_not_representable)
+        return;
+
+    free (rectangle_list->rectangles);
+    free (rectangle_list);
+}

uppdev/plugin/cairo/lib/cairo-color.c

@@ -0,0 +1,175 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+static cairo_color_t const cairo_color_white = {
+    1.0,    1.0,    1.0,    1.0,
+    0xffff, 0xffff, 0xffff, 0xffff
+};
+
+static cairo_color_t const cairo_color_black = {
+    0.0, 0.0, 0.0, 1.0,
+    0x0, 0x0, 0x0, 0xffff
+};
+
+static cairo_color_t const cairo_color_transparent = {
+    0.0, 0.0, 0.0, 0.0,
+    0x0, 0x0, 0x0, 0x0
+};
+
+static cairo_color_t const cairo_color_magenta = {
+    1.0,    0.0, 1.0,    1.0,
+    0xffff, 0x0, 0xffff, 0xffff
+};
+
+const cairo_color_t *
+_cairo_stock_color (cairo_stock_t stock)
+{
+    switch (stock) {
+    case CAIRO_STOCK_WHITE:
+	return &cairo_color_white;
+    case CAIRO_STOCK_BLACK:
+	return &cairo_color_black;
+    case CAIRO_STOCK_TRANSPARENT:
+	return &cairo_color_transparent;
+    }
+
+    ASSERT_NOT_REACHED;
+
+    /* If the user can get here somehow, give a color that indicates a
+     * problem. */
+    return &cairo_color_magenta;
+}
+
+void
+_cairo_color_init (cairo_color_t *color)
+{
+    *color = cairo_color_white;
+}
+
+void
+_cairo_color_init_rgb (cairo_color_t *color,
+		       double red, double green, double blue)
+{
+    _cairo_color_init_rgba (color, red, green, blue, 1.0);
+}
+
+/* Convert a double in [0.0, 1.0] to an integer in [0, 65535]
+ * The conversion is designed to divide the input range into 65536
+ * equally-sized regions. This is achieved by multiplying by 65536 and
+ * then special-casing the result of an input value of 1.0 so that it
+ * maps to 65535 instead of 65536.
+ */
+uint16_t
+_cairo_color_double_to_short (double d)
+{
+    uint32_t i;
+    i = (uint32_t) (d * 65536);
+    i -= (i >> 16);
+    return i;
+}
+
+static void
+_cairo_color_compute_shorts (cairo_color_t *color)
+{
+    color->red_short   = _cairo_color_double_to_short (color->red   * color->alpha);
+    color->green_short = _cairo_color_double_to_short (color->green * color->alpha);
+    color->blue_short  = _cairo_color_double_to_short (color->blue  * color->alpha);
+    color->alpha_short = _cairo_color_double_to_short (color->alpha);
+}
+
+void
+_cairo_color_init_rgba (cairo_color_t *color,
+			double red, double green, double blue,
+			double alpha)
+{
+    color->red   = red;
+    color->green = green;
+    color->blue  = blue;
+    color->alpha = alpha;
+
+    _cairo_color_compute_shorts (color);
+}
+
+void
+_cairo_color_multiply_alpha (cairo_color_t *color,
+			     double	    alpha)
+{
+    color->alpha *= alpha;
+
+    _cairo_color_compute_shorts (color);
+}
+
+void
+_cairo_color_get_rgba (cairo_color_t *color,
+		       double	     *red,
+		       double	     *green,
+		       double	     *blue,
+		       double	     *alpha)
+{
+    *red   = color->red;
+    *green = color->green;
+    *blue  = color->blue;
+    *alpha = color->alpha;
+}
+
+void
+_cairo_color_get_rgba_premultiplied (cairo_color_t *color,
+				     double	   *red,
+				     double	   *green,
+				     double	   *blue,
+				     double	   *alpha)
+{
+    *red   = color->red   * color->alpha;
+    *green = color->green * color->alpha;
+    *blue  = color->blue  * color->alpha;
+    *alpha = color->alpha;
+}
+
+cairo_bool_t
+_cairo_color_equal (const cairo_color_t *color_a,
+	            const cairo_color_t *color_b)
+{
+    if (color_a == color_b)
+	return TRUE;
+
+    return color_a->red_short   == color_b->red_short   &&
+           color_a->green_short == color_b->green_short &&
+           color_a->blue_short  == color_b->blue_short  &&
+           color_a->alpha_short == color_b->alpha_short;
+}

uppdev/plugin/cairo/lib/cairo-compiler-private.h

@@ -0,0 +1,162 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_COMPILER_PRIVATE_H
+#define CAIRO_COMPILER_PRIVATE_H
+
+#include "cairo.h"
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if __GNUC__ >= 3 && defined(__ELF__) && !defined(__sun)
+# define slim_hidden_proto(name)		slim_hidden_proto1(name, slim_hidden_int_name(name)) cairo_private
+# define slim_hidden_proto_no_warn(name)	slim_hidden_proto1(name, slim_hidden_int_name(name)) cairo_private_no_warn
+# define slim_hidden_def(name)			slim_hidden_def1(name, slim_hidden_int_name(name))
+# define slim_hidden_int_name(name) INT_##name
+# define slim_hidden_proto1(name, internal)				\
+  extern __typeof (name) name						\
+	__asm__ (slim_hidden_asmname (internal))
+# define slim_hidden_def1(name, internal)				\
+  extern __typeof (name) EXT_##name __asm__(slim_hidden_asmname(name))	\
+	__attribute__((__alias__(slim_hidden_asmname(internal))))
+# define slim_hidden_ulp		slim_hidden_ulp1(__USER_LABEL_PREFIX__)
+# define slim_hidden_ulp1(x)		slim_hidden_ulp2(x)
+# define slim_hidden_ulp2(x)		#x
+# define slim_hidden_asmname(name)	slim_hidden_asmname1(name)
+# define slim_hidden_asmname1(name)	slim_hidden_ulp #name
+#else
+# define slim_hidden_proto(name)		int _cairo_dummy_prototype(void)
+# define slim_hidden_proto_no_warn(name)	int _cairo_dummy_prototype(void)
+# define slim_hidden_def(name)			int _cairo_dummy_prototype(void)
+#endif
+
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
+#define CAIRO_PRINTF_FORMAT(fmt_index, va_index) \
+	__attribute__((__format__(__printf__, fmt_index, va_index)))
+#else
+#define CAIRO_PRINTF_FORMAT(fmt_index, va_index)
+#endif
+
+/* slim_internal.h */
+#define CAIRO_HAS_HIDDEN_SYMBOLS 1
+#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)) && defined(__ELF__) && !defined(__sun)
+#define cairo_private_no_warn	__attribute__((__visibility__("hidden")))
+#elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)
+#define cairo_private_no_warn	__hidden
+#else /* not gcc >= 3.3 and not Sun Studio >= 8 */
+#define cairo_private_no_warn
+#undef CAIRO_HAS_HIDDEN_SYMBOLS
+#endif
+
+#ifndef WARN_UNUSED_RESULT
+#define WARN_UNUSED_RESULT
+#endif
+/* Add attribute(warn_unused_result) if supported */
+#define cairo_warn	    WARN_UNUSED_RESULT
+#define cairo_private	    cairo_private_no_warn cairo_warn
+
+/* This macro allow us to deprecate a function by providing an alias
+   for the old function name to the new function name. With this
+   macro, binary compatibility is preserved. The macro only works on
+   some platforms --- tough.
+
+   Meanwhile, new definitions in the public header file break the
+   source code so that it will no longer link against the old
+   symbols. Instead it will give a descriptive error message
+   indicating that the old function has been deprecated by the new
+   function.
+*/
+#if __GNUC__ >= 2 && defined(__ELF__)
+# define CAIRO_FUNCTION_ALIAS(old, new)		\
+	extern __typeof (new) old		\
+	__asm__ ("" #old)			\
+	__attribute__((__alias__("" #new)))
+#else
+# define CAIRO_FUNCTION_ALIAS(old, new)
+#endif
+
+/*
+ * Cairo uses the following function attributes in order to improve the
+ * generated code (effectively by manual inter-procedural analysis).
+ *
+ *   'cairo_pure': The function is only allowed to read from its arguments
+ *                 and global memory (i.e. following a pointer argument or
+ *                 accessing a shared variable). The return value should
+ *                 only depend on its arguments, and for an identical set of
+ *                 arguments should return the same value.
+ *
+ *   'cairo_const': The function is only allowed to read from its arguments.
+ *                  It is not allowed to access global memory. The return
+ *                  value should only depend its arguments, and for an
+ *                  identical set of arguments should return the same value.
+ *                  This is currently the most strict function attribute.
+ *
+ * Both these function attributes allow gcc to perform CSE and
+ * constant-folding, with 'cairo_const 'also guaranteeing that pointer contents
+ * do not change across the function call.
+ */
+#if __GNUC__ >= 3
+#define cairo_pure __attribute__((pure))
+#define cairo_const __attribute__((const))
+#else
+#define cairo_pure
+#define cairo_const
+#endif
+
+#ifndef __GNUC__
+#undef __attribute__
+#define __attribute__(x)
+#endif
+
+#if (defined(__WIN32__) && !defined(__WINE__)) || defined(_MSC_VER)
+#define snprintf _snprintf
+#define popen _popen
+#endif
+
+#ifdef _MSC_VER
+#undef inline
+#define inline __inline
+#endif
+
+#ifdef __STRICT_ANSI__
+#undef inline
+#define inline __inline__
+#endif
+
+#endif

uppdev/plugin/cairo/lib/cairo-debug.c

@@ -0,0 +1,75 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+/**
+ * cairo_debug_reset_static_data:
+ *
+ * Resets all static data within cairo to its original state,
+ * (ie. identical to the state at the time of program invocation). For
+ * example, all caches within cairo will be flushed empty.
+ *
+ * This function is intended to be useful when using memory-checking
+ * tools such as valgrind. When valgrind's memcheck analyzes a
+ * cairo-using program without a call to cairo_debug_reset_static_data(),
+ * it will report all data reachable via cairo's static objects as
+ * "still reachable". Calling cairo_debug_reset_static_data() just prior
+ * to program termination will make it easier to get squeaky clean
+ * reports from valgrind.
+ *
+ * WARNING: It is only safe to call this function when there are no
+ * active cairo objects remaining, (ie. the appropriate destroy
+ * functions have been called as necessary). If there are active cairo
+ * objects, this call is likely to cause a crash, (eg. an assertion
+ * failure due to a hash table being destroyed when non-empty).
+ **/
+void
+cairo_debug_reset_static_data (void)
+{
+    CAIRO_MUTEX_INITIALIZE ();
+
+    _cairo_font_face_reset_static_data ();
+
+#if CAIRO_HAS_FT_FONT
+    _cairo_ft_font_reset_static_data ();
+#endif
+
+    _cairo_scaled_font_reset_static_data ();
+
+    _cairo_pattern_reset_static_data ();
+
+    CAIRO_MUTEX_FINALIZE ();
+}

uppdev/plugin/cairo/lib/cairo-deflate-stream.c

@@ -0,0 +1,149 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Adrian Johnson.
+ *
+ * Author(s):
+ *	Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#include "cairoint.h"
+#include "cairo-output-stream-private.h"
+#include <zlib.h>
+
+#define BUFFER_SIZE 16384
+
+typedef struct _cairo_deflate_stream {
+    cairo_output_stream_t  base;
+    cairo_output_stream_t *output;
+    z_stream               zlib_stream;
+    unsigned char          input_buf[BUFFER_SIZE];
+    unsigned char          output_buf[BUFFER_SIZE];
+} cairo_deflate_stream_t;
+
+static void
+cairo_deflate_stream_deflate (cairo_deflate_stream_t *stream, cairo_bool_t flush)
+{
+    int ret;
+    cairo_bool_t finished;
+
+    do {
+        ret = deflate (&stream->zlib_stream, flush ? Z_FINISH : Z_NO_FLUSH);
+        if (flush || stream->zlib_stream.avail_out == 0)
+        {
+            _cairo_output_stream_write (stream->output,
+                                        stream->output_buf,
+                                        BUFFER_SIZE - stream->zlib_stream.avail_out);
+            stream->zlib_stream.next_out = stream->output_buf;
+            stream->zlib_stream.avail_out = BUFFER_SIZE;
+        }
+
+        finished = TRUE;
+        if (stream->zlib_stream.avail_in != 0)
+            finished = FALSE;
+        if (flush && ret != Z_STREAM_END)
+            finished = FALSE;
+
+    } while (!finished);
+
+    stream->zlib_stream.next_in = stream->input_buf;
+}
+
+static cairo_status_t
+_cairo_deflate_stream_write (cairo_output_stream_t *base,
+                             const unsigned char   *data,
+                             unsigned int	    length)
+{
+    cairo_deflate_stream_t *stream = (cairo_deflate_stream_t *) base;
+    unsigned int count;
+    const unsigned char *p = data;
+
+    while (length) {
+        count = length;
+        if (count > BUFFER_SIZE - stream->zlib_stream.avail_in)
+            count = BUFFER_SIZE - stream->zlib_stream.avail_in;
+        memcpy (stream->input_buf + stream->zlib_stream.avail_in, p, count);
+        p += count;
+        stream->zlib_stream.avail_in += count;
+        length -= count;
+
+        if (stream->zlib_stream.avail_in == BUFFER_SIZE)
+            cairo_deflate_stream_deflate (stream, FALSE);
+    }
+
+    return _cairo_output_stream_get_status (stream->output);
+}
+
+static cairo_status_t
+_cairo_deflate_stream_close (cairo_output_stream_t *base)
+{
+    cairo_deflate_stream_t *stream = (cairo_deflate_stream_t *) base;
+
+    cairo_deflate_stream_deflate (stream, TRUE);
+    deflateEnd (&stream->zlib_stream);
+
+    return _cairo_output_stream_get_status (stream->output);
+}
+
+cairo_output_stream_t *
+_cairo_deflate_stream_create (cairo_output_stream_t *output)
+{
+    cairo_deflate_stream_t *stream;
+
+    if (output->status)
+	return _cairo_output_stream_create_in_error (output->status);
+
+    stream = malloc (sizeof (cairo_deflate_stream_t));
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base,
+			       _cairo_deflate_stream_write,
+			       _cairo_deflate_stream_close);
+    stream->output = output;
+
+    stream->zlib_stream.zalloc = Z_NULL;
+    stream->zlib_stream.zfree  = Z_NULL;
+    stream->zlib_stream.opaque  = Z_NULL;
+
+    if (deflateInit (&stream->zlib_stream, Z_DEFAULT_COMPRESSION) != Z_OK) {
+	free (stream);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    stream->zlib_stream.next_in = stream->input_buf;
+    stream->zlib_stream.avail_in = 0;
+    stream->zlib_stream.next_out = stream->output_buf;
+    stream->zlib_stream.avail_out = BUFFER_SIZE;
+
+    return &stream->base;
+}

uppdev/plugin/cairo/lib/cairo-deprecated.h

@@ -0,0 +1,138 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_DEPRECATED_H
+#define CAIRO_DEPRECATED_H
+
+/* The %CAIRO_FORMAT_RGB16_565 value was added in cairo 1.2.0 as part
+ * of fixing cairo's xlib backend to work with X servers advertising a
+ * 16-bit, 565 visual. But as it turned out, adding this format to
+ * #cairo_format_t was not necessary, and was a mistake, (cairo's xlib
+ * backend can work fine with 16-bit visuals in the same way it works
+ * with BGR visuals without any BGR formats in
+ * #cairo_format_t).
+ *
+ * Additionally, the support for the RGB16_565 format was never
+ * completely implemented. So while this format value is currently
+ * deprecated, it may eventually acquire complete support in the future.
+ */
+#define CAIRO_FORMAT_RGB16_565 4
+
+#define CAIRO_FONT_TYPE_ATSUI CAIRO_FONT_TYPE_QUARTZ
+
+/* Obsolete functions. These definitions exist to coerce the compiler
+ * into providing a little bit of guidance with its error
+ * messages. The idea is to help users port their old code without
+ * having to dig through lots of documentation.
+ *
+ * The first set of REPLACED_BY functions is for functions whose names
+ * have just been changed. So fixing these up is mechanical, (and
+ * automated by means of the cairo/util/cairo-api-update script.
+ *
+ * The second set of DEPRECATED_BY functions is for functions where
+ * the replacement is used in a different way, (ie. different
+ * arguments, multiple functions instead of one, etc). Fixing these up
+ * will require a bit more work on the user's part, (and hopefully we
+ * can get cairo-api-update to find these and print some guiding
+ * information).
+ */
+#define cairo_current_font_extents   cairo_current_font_extents_REPLACED_BY_cairo_font_extents
+#define cairo_get_font_extents       cairo_get_font_extents_REPLACED_BY_cairo_font_extents
+#define cairo_current_operator       cairo_current_operator_REPLACED_BY_cairo_get_operator
+#define cairo_current_tolerance	     cairo_current_tolerance_REPLACED_BY_cairo_get_tolerance
+#define cairo_current_point	     cairo_current_point_REPLACED_BY_cairo_get_current_point
+#define cairo_current_fill_rule	     cairo_current_fill_rule_REPLACED_BY_cairo_get_fill_rule
+#define cairo_current_line_width     cairo_current_line_width_REPLACED_BY_cairo_get_line_width
+#define cairo_current_line_cap       cairo_current_line_cap_REPLACED_BY_cairo_get_line_cap
+#define cairo_current_line_join      cairo_current_line_join_REPLACED_BY_cairo_get_line_join
+#define cairo_current_miter_limit    cairo_current_miter_limit_REPLACED_BY_cairo_get_miter_limit
+#define cairo_current_matrix         cairo_current_matrix_REPLACED_BY_cairo_get_matrix
+#define cairo_current_target_surface cairo_current_target_surface_REPLACED_BY_cairo_get_target
+#define cairo_get_status             cairo_get_status_REPLACED_BY_cairo_status
+#define cairo_concat_matrix		 cairo_concat_matrix_REPLACED_BY_cairo_transform
+#define cairo_scale_font                 cairo_scale_font_REPLACED_BY_cairo_set_font_size
+#define cairo_select_font                cairo_select_font_REPLACED_BY_cairo_select_font_face
+#define cairo_transform_font             cairo_transform_font_REPLACED_BY_cairo_set_font_matrix
+#define cairo_transform_point		 cairo_transform_point_REPLACED_BY_cairo_user_to_device
+#define cairo_transform_distance	 cairo_transform_distance_REPLACED_BY_cairo_user_to_device_distance
+#define cairo_inverse_transform_point	 cairo_inverse_transform_point_REPLACED_BY_cairo_device_to_user
+#define cairo_inverse_transform_distance cairo_inverse_transform_distance_REPLACED_BY_cairo_device_to_user_distance
+#define cairo_init_clip			 cairo_init_clip_REPLACED_BY_cairo_reset_clip
+#define cairo_surface_create_for_image	 cairo_surface_create_for_image_REPLACED_BY_cairo_image_surface_create_for_data
+#define cairo_default_matrix		 cairo_default_matrix_REPLACED_BY_cairo_identity_matrix
+#define cairo_matrix_set_affine		 cairo_matrix_set_affine_REPLACED_BY_cairo_matrix_init
+#define cairo_matrix_set_identity	 cairo_matrix_set_identity_REPLACED_BY_cairo_matrix_init_identity
+#define cairo_pattern_add_color_stop	 cairo_pattern_add_color_stop_REPLACED_BY_cairo_pattern_add_color_stop_rgba
+#define cairo_set_rgb_color		 cairo_set_rgb_color_REPLACED_BY_cairo_set_source_rgb
+#define cairo_set_pattern		 cairo_set_pattern_REPLACED_BY_cairo_set_source
+#define cairo_xlib_surface_create_for_pixmap_with_visual	cairo_xlib_surface_create_for_pixmap_with_visual_REPLACED_BY_cairo_xlib_surface_create
+#define cairo_xlib_surface_create_for_window_with_visual	cairo_xlib_surface_create_for_window_with_visual_REPLACED_BY_cairo_xlib_surface_create
+#define cairo_xcb_surface_create_for_pixmap_with_visual	cairo_xcb_surface_create_for_pixmap_with_visual_REPLACED_BY_cairo_xcb_surface_create
+#define cairo_xcb_surface_create_for_window_with_visual	cairo_xcb_surface_create_for_window_with_visual_REPLACED_BY_cairo_xcb_surface_create
+#define cairo_ps_surface_set_dpi	cairo_ps_surface_set_dpi_REPLACED_BY_cairo_surface_set_fallback_resolution
+#define cairo_pdf_surface_set_dpi	cairo_pdf_surface_set_dpi_REPLACED_BY_cairo_surface_set_fallback_resolution
+#define cairo_svg_surface_set_dpi	cairo_svg_surface_set_dpi_REPLACED_BY_cairo_surface_set_fallback_resolution
+#define cairo_atsui_font_face_create_for_atsu_font_id  cairo_atsui_font_face_create_for_atsu_font_id_REPLACED_BY_cairo_quartz_font_face_create_for_atsu_font_id
+
+#define cairo_current_path	     cairo_current_path_DEPRECATED_BY_cairo_copy_path
+#define cairo_current_path_flat	     cairo_current_path_flat_DEPRECATED_BY_cairo_copy_path_flat
+#define cairo_get_path		     cairo_get_path_DEPRECATED_BY_cairo_copy_path
+#define cairo_get_path_flat	     cairo_get_path_flat_DEPRECATED_BY_cairo_get_path_flat
+#define cairo_set_alpha		     cairo_set_alpha_DEPRECATED_BY_cairo_set_source_rgba_OR_cairo_paint_with_alpha
+#define cairo_show_surface	     cairo_show_surface_DEPRECATED_BY_cairo_set_source_surface_AND_cairo_paint
+#define cairo_copy		     cairo_copy_DEPRECATED_BY_cairo_create_AND_MANY_INDIVIDUAL_FUNCTIONS
+#define cairo_surface_set_repeat	cairo_surface_set_repeat_DEPRECATED_BY_cairo_pattern_set_extend
+#define cairo_surface_set_matrix	cairo_surface_set_matrix_DEPRECATED_BY_cairo_pattern_set_matrix
+#define cairo_surface_get_matrix	cairo_surface_get_matrix_DEPRECATED_BY_cairo_pattern_get_matrix
+#define cairo_surface_set_filter	cairo_surface_set_filter_DEPRECATED_BY_cairo_pattern_set_filter
+#define cairo_surface_get_filter	cairo_surface_get_filter_DEPRECATED_BY_cairo_pattern_get_filter
+#define cairo_matrix_create		cairo_matrix_create_DEPRECATED_BY_cairo_matrix_t
+#define cairo_matrix_destroy		cairo_matrix_destroy_DEPRECATED_BY_cairo_matrix_t
+#define cairo_matrix_copy		cairo_matrix_copy_DEPRECATED_BY_cairo_matrix_t
+#define cairo_matrix_get_affine		cairo_matrix_get_affine_DEPRECATED_BY_cairo_matrix_t
+#define cairo_set_target_surface	cairo_set_target_surface_DEPRECATED_BY_cairo_create
+#define cairo_set_target_glitz		cairo_set_target_glitz_DEPRECATED_BY_cairo_glitz_surface_create
+#define cairo_set_target_image		cairo_set_target_image_DEPRECATED_BY_cairo_image_surface_create_for_data
+#define cairo_set_target_pdf		cairo_set_target_pdf_DEPRECATED_BY_cairo_pdf_surface_create
+#define cairo_set_target_png		cairo_set_target_png_DEPRECATED_BY_cairo_surface_write_to_png
+#define cairo_set_target_ps		cairo_set_target_ps_DEPRECATED_BY_cairo_ps_surface_create
+#define cairo_set_target_quartz		cairo_set_target_quartz_DEPRECATED_BY_cairo_quartz_surface_create
+#define cairo_set_target_win32		cairo_set_target_win32_DEPRECATED_BY_cairo_win32_surface_create
+#define cairo_set_target_xcb		cairo_set_target_xcb_DEPRECATED_BY_cairo_xcb_surface_create
+#define cairo_set_target_drawable	cairo_set_target_drawable_DEPRECATED_BY_cairo_xlib_surface_create
+#define cairo_get_status_string		cairo_get_status_string_DEPRECATED_BY_cairo_status_AND_cairo_status_to_string
+#define cairo_status_string		cairo_status_string_DEPRECATED_BY_cairo_status_AND_cairo_status_to_string
+
+#endif /* CAIRO_DEPRECATED_H */

uppdev/plugin/cairo/lib/cairo-directfb.h

@@ -0,0 +1,67 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@isi.edu>
+ */
+
+/*
+ * Environment variables affecting the backend:
+ *
+ *  %CAIRO_DIRECTFB_NO_ACCEL (boolean)
+ *      if found, disables acceleration at all
+ *
+ *  %CAIRO_DIRECTFB_ARGB_FONT (boolean)
+ *      if found, enables using ARGB fonts instead of A8
+ */
+
+#ifndef CAIRO_DIRECTFB_H
+#define CAIRO_DIRECTFB_H
+
+#include "cairo.h"
+
+#if  CAIRO_HAS_DIRECTFB_SURFACE
+
+#include <directfb.h>
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *surface);
+
+CAIRO_END_DECLS
+
+#else  /*CAIRO_HAS_DIRECTFB_SURFACE*/
+# error Cairo was not compiled with support for the directfb backend
+#endif /*CAIRO_HAS_DIRECTFB_SURFACE*/
+
+#endif /*CAIRO_DIRECTFB_H*/

uppdev/plugin/cairo/lib/cairo-features.h

@@ -0,0 +1,28 @@
+/* Generated by configure.  Do not edit. */
+#ifndef CAIRO_FEATURES_H
+#define CAIRO_FEATURES_H
+
+#define CAIRO_HAS_IMAGE_SURFACE 1
+#define CAIRO_HAS_PDF_SURFACE 1
+#define CAIRO_HAS_PNG_FUNCTIONS 1
+//#define CAIRO_HAS_PS_SURFACE 1
+#define CAIRO_HAS_SVG_SURFACE 1
+//#define CAIRO_HAS_USER_FONT 1
+
+/*#undef CAIRO_HAS_QUARTZ_FONT */
+/*#undef CAIRO_HAS_QUARTZ_SURFACE */
+
+#ifndef cairo_public
+    #define cairo_public 
+#endif
+
+#ifdef flagWIN32
+	#define CAIRO_HAS_WIN32_SURFACE 1 
+	#define CAIRO_HAS_WIN32_FONT 1
+#else
+	#define CAIRO_HAS_XLIB_SURFACE 1 
+	#define CAIRO_HAS_XLIB_XRENDER_SURFACE 1
+	#define CAIRO_HAS_FT_FONT 1
+#endif
+
+#endif

uppdev/plugin/cairo/lib/cairo-fixed-private.h

@@ -0,0 +1,244 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation
+ *
+ * Contributor(s):
+ *	Vladimir Vukicevic <vladimir@pobox.com>
+ */
+
+#ifndef CAIRO_FIXED_PRIVATE_H
+#define CAIRO_FIXED_PRIVATE_H
+
+#include "cairo-fixed-type-private.h"
+
+#include "cairo-wideint-private.h"
+
+/* Implementation */
+
+#if (CAIRO_FIXED_BITS != 32)
+# error CAIRO_FIXED_BITS must be 32, and the type must be a 32-bit type.
+# error To remove this limitation, you will have to fix the tesselator.
+#endif
+
+#define CAIRO_FIXED_ONE        ((cairo_fixed_t)(1 << CAIRO_FIXED_FRAC_BITS))
+#define CAIRO_FIXED_ONE_DOUBLE ((double)(1 << CAIRO_FIXED_FRAC_BITS))
+#define CAIRO_FIXED_EPSILON    ((cairo_fixed_t)(1))
+
+#define CAIRO_FIXED_FRAC_MASK  (((cairo_fixed_unsigned_t)(-1)) >> (CAIRO_FIXED_BITS - CAIRO_FIXED_FRAC_BITS))
+#define CAIRO_FIXED_WHOLE_MASK (~CAIRO_FIXED_FRAC_MASK)
+
+static inline cairo_fixed_t
+_cairo_fixed_from_int (int i)
+{
+    return i << CAIRO_FIXED_FRAC_BITS;
+}
+
+/* This is the "magic number" approach to converting a double into fixed
+ * point as described here:
+ *
+ * http://www.stereopsis.com/sree/fpu2006.html (an overview)
+ * http://www.d6.com/users/checker/pdfs/gdmfp.pdf (in detail)
+ *
+ * The basic idea is to add a large enough number to the double that the
+ * literal floating point is moved up to the extent that it forces the
+ * double's value to be shifted down to the bottom of the mantissa (to make
+ * room for the large number being added in). Since the mantissa is, at a
+ * given moment in time, a fixed point integer itself, one can convert a
+ * float to various fixed point representations by moving around the point
+ * of a floating point number through arithmetic operations. This behavior
+ * is reliable on most modern platforms as it is mandated by the IEEE-754
+ * standard for floating point arithmetic.
+ *
+ * For our purposes, a "magic number" must be carefully selected that is
+ * both large enough to produce the desired point-shifting effect, and also
+ * has no lower bits in its representation that would interfere with our
+ * value at the bottom of the mantissa. The magic number is calculated as
+ * follows:
+ *
+ *          (2 ^ (MANTISSA_SIZE - FRACTIONAL_SIZE)) * 1.5
+ *
+ * where in our case:
+ *  - MANTISSA_SIZE for 64-bit doubles is 52
+ *  - FRACTIONAL_SIZE for 16.16 fixed point is 16
+ *
+ * Although this approach provides a very large speedup of this function
+ * on a wide-array of systems, it does come with two caveats:
+ *
+ * 1) It uses banker's rounding as opposed to arithmetic rounding.
+ * 2) It doesn't function properly if the FPU is in single-precision
+ *    mode.
+ */
+
+/* The 16.16 number must always be available */
+#define CAIRO_MAGIC_NUMBER_FIXED_16_16 (103079215104.0)
+
+#if CAIRO_FIXED_BITS <= 32
+#define CAIRO_MAGIC_NUMBER_FIXED ((1LL << (52 - CAIRO_FIXED_FRAC_BITS)) * 1.5)
+
+/* For 32-bit fixed point numbers */
+static inline cairo_fixed_t
+_cairo_fixed_from_double (double d)
+{
+    union {
+        double d;
+        int32_t i[2];
+    } u;
+
+    u.d = d + CAIRO_MAGIC_NUMBER_FIXED;
+#ifdef FLOAT_WORDS_BIGENDIAN
+    return u.i[1];
+#else
+    return u.i[0];
+#endif
+}
+
+#else
+# error Please define a magic number for your fixed point type!
+# error See cairo-fixed-private.h for details.
+#endif
+
+static inline cairo_fixed_t
+_cairo_fixed_from_26_6 (uint32_t i)
+{
+#if CAIRO_FIXED_FRAC_BITS > 6
+    return i << (CAIRO_FIXED_FRAC_BITS - 6);
+#else
+    return i >> (6 - CAIRO_FIXED_FRAC_BITS);
+#endif
+}
+
+static inline double
+_cairo_fixed_to_double (cairo_fixed_t f)
+{
+    return ((double) f) / CAIRO_FIXED_ONE_DOUBLE;
+}
+
+static inline int
+_cairo_fixed_is_integer (cairo_fixed_t f)
+{
+    return (f & CAIRO_FIXED_FRAC_MASK) == 0;
+}
+
+static inline int
+_cairo_fixed_integer_part (cairo_fixed_t f)
+{
+    return f >> CAIRO_FIXED_FRAC_BITS;
+}
+
+static inline int
+_cairo_fixed_integer_floor (cairo_fixed_t f)
+{
+    if (f >= 0)
+        return f >> CAIRO_FIXED_FRAC_BITS;
+    else
+        return -((-f - 1) >> CAIRO_FIXED_FRAC_BITS) - 1;
+}
+
+static inline int
+_cairo_fixed_integer_ceil (cairo_fixed_t f)
+{
+    if (f > 0)
+	return ((f - 1)>>CAIRO_FIXED_FRAC_BITS) + 1;
+    else
+	return - (-f >> CAIRO_FIXED_FRAC_BITS);
+}
+
+/* A bunch of explicit 16.16 operators; we need these
+ * to interface with pixman and other backends that require
+ * 16.16 fixed point types.
+ */
+static inline cairo_fixed_16_16_t
+_cairo_fixed_to_16_16 (cairo_fixed_t f)
+{
+#if (CAIRO_FIXED_FRAC_BITS == 16) && (CAIRO_FIXED_BITS == 32)
+    return f;
+#elif CAIRO_FIXED_FRAC_BITS > 16
+    /* We're just dropping the low bits, so we won't ever got over/underflow here */
+    return f >> (CAIRO_FIXED_FRAC_BITS - 16);
+#else
+    cairo_fixed_16_16_t x;
+
+    /* Handle overflow/underflow by clamping to the lowest/highest
+     * value representable as 16.16
+     */
+    if ((f >> CAIRO_FIXED_FRAC_BITS) < INT16_MIN) {
+	x = INT32_MIN;
+    } else if ((f >> CAIRO_FIXED_FRAC_BITS) > INT16_MAX) {
+	x = INT32_MAX;
+    } else {
+	x = f << (16 - CAIRO_FIXED_FRAC_BITS);
+    }
+
+    return x;
+#endif
+}
+
+static inline cairo_fixed_16_16_t
+_cairo_fixed_16_16_from_double (double d)
+{
+    union {
+        double d;
+        int32_t i[2];
+    } u;
+
+    u.d = d + CAIRO_MAGIC_NUMBER_FIXED_16_16;
+#ifdef FLOAT_WORDS_BIGENDIAN
+    return u.i[1];
+#else
+    return u.i[0];
+#endif
+}
+
+#if CAIRO_FIXED_BITS == 32
+
+static inline cairo_fixed_t
+_cairo_fixed_mul (cairo_fixed_t a, cairo_fixed_t b)
+{
+    cairo_int64_t temp = _cairo_int32x32_64_mul (a, b);
+    return _cairo_int64_to_int32(_cairo_int64_rsl (temp, CAIRO_FIXED_FRAC_BITS));
+}
+
+/* computes a * b / c */
+static inline cairo_fixed_t
+_cairo_fixed_mul_div (cairo_fixed_t a, cairo_fixed_t b, cairo_fixed_t c)
+{
+    cairo_int64_t ab  = _cairo_int32x32_64_mul (a, b);
+    cairo_int64_t c64 = _cairo_int32_to_int64 (c);
+    cairo_int64_t quo = _cairo_int64_divrem (ab, c64).quo;
+
+    return _cairo_int64_to_int32(quo);
+}
+
+#else
+# error Please define multiplication and other operands for your fixed-point type size
+#endif
+
+#endif /* CAIRO_FIXED_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-fixed-type-private.h

@@ -0,0 +1,70 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation
+ *
+ * Contributor(s):
+ *	Vladimir Vukicevic <vladimir@pobox.com>
+ */
+
+#ifndef CAIRO_FIXED_TYPE_PRIVATE_H
+#define CAIRO_FIXED_TYPE_PRIVATE_H
+
+#include "cairo-wideint-type-private.h"
+
+/*
+ * Fixed-point configuration
+ */
+
+typedef int32_t		cairo_fixed_16_16_t;
+typedef cairo_int64_t	cairo_fixed_32_32_t;
+typedef cairo_int64_t	cairo_fixed_48_16_t;
+typedef cairo_int128_t	cairo_fixed_64_64_t;
+typedef cairo_int128_t	cairo_fixed_96_32_t;
+
+/* Eventually, we should allow changing this, but I think
+ * there are some assumptions in the tesselator about the
+ * size of a fixed type.  For now, it must be 32.
+ */
+#define CAIRO_FIXED_BITS	32
+
+/* The number of fractional bits.  Changing this involves
+ * making sure that you compute a double-to-fixed magic number.
+ * (see below).
+ */
+#define CAIRO_FIXED_FRAC_BITS	8
+
+/* A signed type %CAIRO_FIXED_BITS in size; the main fixed point type */
+typedef int32_t cairo_fixed_t;
+
+/* An unsigned type of the same size as #cairo_fixed_t */
+typedef uint32_t cairo_fixed_unsigned_t;
+
+#endif /* CAIRO_FIXED_TYPE_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-fixed.c

@@ -0,0 +1,39 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-fixed-private.h"

uppdev/plugin/cairo/lib/cairo-font-face-twin.c

@@ -0,0 +1,209 @@
+/*
+ * Copyright © 2004 Keith Packard
+ * Copyright © 2008 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Keith Packard
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *      Behdad Esfahbod <behdad@behdad.org>
+ */
+
+#include "cairoint.h"
+
+/*
+ * This file implements a user-font rendering the decendant of the Hershey
+ * font coded by Keith Packard for use in the Twin window system.
+ * The actual font data is in cairo-font-face-twin-data.c
+ *
+ * Ported to cairo user font by Behdad Esfahbod.
+ */
+
+
+#define twin_glyph_left(g)      ((g)[0])
+#define twin_glyph_right(g)     ((g)[1])
+#define twin_glyph_ascent(g)    ((g)[2])
+#define twin_glyph_descent(g)   ((g)[3])
+
+#define twin_glyph_n_snap_x(g)  ((g)[4])
+#define twin_glyph_n_snap_y(g)  ((g)[5])
+#define twin_glyph_snap_x(g)    (&g[6])
+#define twin_glyph_snap_y(g)    (twin_glyph_snap_x(g) + twin_glyph_n_snap_x(g))
+#define twin_glyph_draw(g)      (twin_glyph_snap_y(g) + twin_glyph_n_snap_y(g))
+
+#define SNAPI(p)	(p)
+#define SNAPH(p)	(p)
+
+#define FX(g)		((g) / 64.)
+#define FY(g)		((g) / 64.)
+
+
+static cairo_status_t
+twin_scaled_font_init (cairo_scaled_font_t  *scaled_font,
+		       cairo_t              *cr,
+		       cairo_font_extents_t *metrics)
+{
+  metrics->ascent  = FY (50);
+  metrics->descent = FY (14);
+  return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+twin_scaled_font_unicode_to_glyph (cairo_scaled_font_t *scaled_font,
+				   unsigned long        unicode,
+				   unsigned long       *glyph)
+{
+    /* We use an identity charmap.  Which means we could live
+     * with no unicode_to_glyph method too.  But we define this
+     * to map all unknown chars to a single unknown glyph to
+     * reduce pressure on cache. */
+
+    if (unicode < ARRAY_LENGTH (_cairo_twin_charmap))
+	*glyph = unicode;
+    else
+	*glyph = 0;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+#define SNAPX(p)	_twin_snap (p, info.snap_x, info.n_snap_x)
+#define SNAPY(p)	_twin_snap (p, info.snap_y, info.n_snap_y)
+
+static double
+_twin_snap (double v, int a, int b)
+{
+    return v; /* XXX */
+}
+
+static cairo_status_t
+twin_scaled_font_render_glyph (cairo_scaled_font_t  *scaled_font,
+			       unsigned long         glyph,
+			       cairo_t              *cr,
+			       cairo_text_extents_t *metrics)
+{
+    double x1, y1, x2, y2, x3, y3;
+    const int8_t *b = _cairo_twin_outlines +
+		      _cairo_twin_charmap[glyph >= ARRAY_LENGTH (_cairo_twin_charmap) ? 0 : glyph];
+    const int8_t *g = twin_glyph_draw(b);
+
+    struct {
+      cairo_bool_t snap;
+      int snap_x;
+      int snap_y;
+      int n_snap_x;
+      int n_snap_y;
+    } info = {FALSE};
+
+    cairo_set_line_width (cr, 0.06);
+    cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+    cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+    for (;;) {
+	switch (*g++) {
+	case 'M':
+	    cairo_close_path (cr);
+	    /* fall through */
+	case 'm':
+	    x1 = FX(*g++);
+	    y1 = FY(*g++);
+	    if (info.snap)
+	    {
+		x1 = SNAPX (x1);
+		y1 = SNAPY (y1);
+	    }
+	    cairo_move_to (cr, x1, y1);
+	    continue;
+	case 'L':
+	    cairo_close_path (cr);
+	    /* fall through */
+	case 'l':
+	    x1 = FX(*g++);
+	    y1 = FY(*g++);
+	    if (info.snap)
+	    {
+		x1 = SNAPX (x1);
+		y1 = SNAPY (y1);
+	    }
+	    cairo_line_to (cr, x1, y1);
+	    continue;
+	case 'C':
+	    cairo_close_path (cr);
+	    /* fall through */
+	case 'c':
+	    x1 = FX(*g++);
+	    y1 = FY(*g++);
+	    x2 = FX(*g++);
+	    y2 = FY(*g++);
+	    x3 = FX(*g++);
+	    y3 = FY(*g++);
+	    if (info.snap)
+	    {
+		x1 = SNAPX (x1);
+		y1 = SNAPY (y1);
+		x2 = SNAPX (x2);
+		y2 = SNAPY (y2);
+		x3 = SNAPX (x3);
+		y3 = SNAPY (y3);
+	    }
+	    cairo_curve_to (cr, x1, y1, x2, y2, x3, y3);
+	    continue;
+	case 'E':
+	    cairo_close_path (cr);
+	    /* fall through */
+	case 'e':
+	    cairo_stroke (cr);
+	    break;
+	case 'X':
+	    /* filler */
+	    continue;
+	}
+	break;
+    }
+
+    metrics->x_advance = FX(twin_glyph_right(b)) + cairo_get_line_width (cr);
+    metrics->x_advance +=  cairo_get_line_width (cr)/* XXX 2*x.margin */;
+    if (info.snap)
+	metrics->x_advance = SNAPI (SNAPX (metrics->x_advance));
+
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_font_face_t *
+_cairo_font_face_twin_create (cairo_font_slant_t slant,
+			      cairo_font_weight_t weight)
+{
+    cairo_font_face_t *twin_font_face;
+
+    twin_font_face = cairo_user_font_face_create ();
+    cairo_user_font_face_set_init_func             (twin_font_face, twin_scaled_font_init);
+    cairo_user_font_face_set_render_glyph_func     (twin_font_face, twin_scaled_font_render_glyph);
+    cairo_user_font_face_set_unicode_to_glyph_func (twin_font_face, twin_scaled_font_unicode_to_glyph);
+
+    return twin_font_face;
+}

uppdev/plugin/cairo/lib/cairo-font-face.c

@@ -0,0 +1,776 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *      Graydon Hoare <graydon@redhat.com>
+ *      Owen Taylor <otaylor@redhat.com>
+ */
+
+#define _BSD_SOURCE /* for strdup() */
+#include "cairoint.h"
+
+static const cairo_font_face_backend_t _cairo_toy_font_face_backend;
+
+/* #cairo_font_face_t */
+
+const cairo_toy_font_face_t _cairo_font_face_nil = {
+    {
+    { 0 },				/* hash_entry */
+    CAIRO_STATUS_NO_MEMORY,		/* status */
+    CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
+    { 0, 0, 0, NULL },			/* user_data */
+    &_cairo_toy_font_face_backend
+    },
+    CAIRO_FONT_FAMILY_DEFAULT,		/* family */
+    TRUE,				/* owns_family */
+    CAIRO_FONT_SLANT_DEFAULT,		/* slant */
+    CAIRO_FONT_WEIGHT_DEFAULT		/* weight */
+};
+
+static const cairo_toy_font_face_t _cairo_font_face_null_pointer = {
+    {
+    { 0 },				/* hash_entry */
+    CAIRO_STATUS_NULL_POINTER,		/* status */
+    CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
+    { 0, 0, 0, NULL },			/* user_data */
+    &_cairo_toy_font_face_backend
+    },
+    CAIRO_FONT_FAMILY_DEFAULT,		/* family */
+    TRUE,				/* owns_family */
+    CAIRO_FONT_SLANT_DEFAULT,		/* slant */
+    CAIRO_FONT_WEIGHT_DEFAULT		/* weight */
+};
+
+static const cairo_toy_font_face_t _cairo_font_face_invalid_string = {
+    {
+    { 0 },				/* hash_entry */
+    CAIRO_STATUS_INVALID_STRING,	/* status */
+    CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
+    { 0, 0, 0, NULL },			/* user_data */
+    &_cairo_toy_font_face_backend
+    },
+    CAIRO_FONT_FAMILY_DEFAULT,		/* family */
+    TRUE,				/* owns_family */
+    CAIRO_FONT_SLANT_DEFAULT,		/* slant */
+    CAIRO_FONT_WEIGHT_DEFAULT		/* weight */
+};
+
+static const cairo_toy_font_face_t _cairo_font_face_invalid_slant = {
+    {
+    { 0 },				/* hash_entry */
+    CAIRO_STATUS_INVALID_SLANT,		/* status */
+    CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
+    { 0, 0, 0, NULL },			/* user_data */
+    &_cairo_toy_font_face_backend
+    },
+    CAIRO_FONT_FAMILY_DEFAULT,		/* family */
+    TRUE,				/* owns_family */
+    CAIRO_FONT_SLANT_DEFAULT,		/* slant */
+    CAIRO_FONT_WEIGHT_DEFAULT		/* weight */
+};
+
+static const cairo_toy_font_face_t _cairo_font_face_invalid_weight = {
+    {
+    { 0 },				/* hash_entry */
+    CAIRO_STATUS_INVALID_WEIGHT,	/* status */
+    CAIRO_REFERENCE_COUNT_INVALID,	/* ref_count */
+    { 0, 0, 0, NULL },			/* user_data */
+    &_cairo_toy_font_face_backend
+    },
+    CAIRO_FONT_FAMILY_DEFAULT,		/* family */
+    TRUE,				/* owns_family */
+    CAIRO_FONT_SLANT_DEFAULT,		/* slant */
+    CAIRO_FONT_WEIGHT_DEFAULT		/* weight */
+};
+
+cairo_status_t
+_cairo_font_face_set_error (cairo_font_face_t *font_face,
+	                    cairo_status_t     status)
+{
+    if (status == CAIRO_STATUS_SUCCESS)
+	return status;
+
+    /* Don't overwrite an existing error. This preserves the first
+     * error, which is the most significant. */
+    _cairo_status_set_error (&font_face->status, status);
+
+    return _cairo_error (status);
+}
+
+void
+_cairo_font_face_init (cairo_font_face_t               *font_face,
+		       const cairo_font_face_backend_t *backend)
+{
+    CAIRO_MUTEX_INITIALIZE ();
+
+    font_face->status = CAIRO_STATUS_SUCCESS;
+    CAIRO_REFERENCE_COUNT_INIT (&font_face->ref_count, 1);
+    font_face->backend = backend;
+
+    _cairo_user_data_array_init (&font_face->user_data);
+}
+
+/**
+ * cairo_font_face_reference:
+ * @font_face: a #cairo_font_face_t, (may be %NULL in which case this
+ * function does nothing).
+ *
+ * Increases the reference count on @font_face by one. This prevents
+ * @font_face from being destroyed until a matching call to
+ * cairo_font_face_destroy() is made.
+ *
+ * The number of references to a #cairo_font_face_t can be get using
+ * cairo_font_face_get_reference_count().
+ *
+ * Return value: the referenced #cairo_font_face_t.
+ **/
+cairo_font_face_t *
+cairo_font_face_reference (cairo_font_face_t *font_face)
+{
+    if (font_face == NULL ||
+	    CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count))
+	return font_face;
+
+    /* We would normally assert that we have a reference here but we
+     * can't get away with that due to the zombie case as documented
+     * in _cairo_ft_font_face_destroy. */
+
+    _cairo_reference_count_inc (&font_face->ref_count);
+
+    return font_face;
+}
+slim_hidden_def (cairo_font_face_reference);
+
+/**
+ * cairo_font_face_destroy:
+ * @font_face: a #cairo_font_face_t
+ *
+ * Decreases the reference count on @font_face by one. If the result
+ * is zero, then @font_face and all associated resources are freed.
+ * See cairo_font_face_reference().
+ **/
+void
+cairo_font_face_destroy (cairo_font_face_t *font_face)
+{
+    if (font_face == NULL ||
+	    CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count))
+	return;
+
+    assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&font_face->ref_count));
+
+    if (! _cairo_reference_count_dec_and_test (&font_face->ref_count))
+	return;
+
+    if (font_face->backend->destroy)
+	font_face->backend->destroy (font_face);
+
+    /* We allow resurrection to deal with some memory management for the
+     * FreeType backend where cairo_ft_font_face_t and cairo_ft_unscaled_font_t
+     * need to effectively mutually reference each other
+     */
+    if (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&font_face->ref_count))
+	return;
+
+    _cairo_user_data_array_fini (&font_face->user_data);
+
+    free (font_face);
+}
+slim_hidden_def (cairo_font_face_destroy);
+
+/**
+ * cairo_font_face_get_type:
+ * @font_face: a font face
+ *
+ * This function returns the type of the backend used to create
+ * a font face. See #cairo_font_type_t for available types.
+ *
+ * Return value: The type of @font_face.
+ *
+ * Since: 1.2
+ **/
+cairo_font_type_t
+cairo_font_face_get_type (cairo_font_face_t *font_face)
+{
+    return font_face->backend->type;
+}
+
+/**
+ * cairo_font_face_get_reference_count:
+ * @font_face: a #cairo_font_face_t
+ *
+ * Returns the current reference count of @font_face.
+ *
+ * Return value: the current reference count of @font_face.  If the
+ * object is a nil object, 0 will be returned.
+ *
+ * Since: 1.4
+ **/
+unsigned int
+cairo_font_face_get_reference_count (cairo_font_face_t *font_face)
+{
+    if (font_face == NULL ||
+	    CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count))
+	return 0;
+
+    return CAIRO_REFERENCE_COUNT_GET_VALUE (&font_face->ref_count);
+}
+
+/**
+ * cairo_font_face_status:
+ * @font_face: a #cairo_font_face_t
+ *
+ * Checks whether an error has previously occurred for this
+ * font face
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS or another error such as
+ *   %CAIRO_STATUS_NO_MEMORY.
+ **/
+cairo_status_t
+cairo_font_face_status (cairo_font_face_t *font_face)
+{
+    return font_face->status;
+}
+
+/**
+ * cairo_font_face_get_user_data:
+ * @font_face: a #cairo_font_face_t
+ * @key: the address of the #cairo_user_data_key_t the user data was
+ * attached to
+ *
+ * Return user data previously attached to @font_face using the specified
+ * key.  If no user data has been attached with the given key this
+ * function returns %NULL.
+ *
+ * Return value: the user data previously attached or %NULL.
+ **/
+void *
+cairo_font_face_get_user_data (cairo_font_face_t	   *font_face,
+			       const cairo_user_data_key_t *key)
+{
+    return _cairo_user_data_array_get_data (&font_face->user_data,
+					    key);
+}
+slim_hidden_def (cairo_font_face_get_user_data);
+
+/**
+ * cairo_font_face_set_user_data:
+ * @font_face: a #cairo_font_face_t
+ * @key: the address of a #cairo_user_data_key_t to attach the user data to
+ * @user_data: the user data to attach to the font face
+ * @destroy: a #cairo_destroy_func_t which will be called when the
+ * font face is destroyed or when new user data is attached using the
+ * same key.
+ *
+ * Attach user data to @font_face.  To remove user data from a font face,
+ * call this function with the key that was used to set it and %NULL
+ * for @data.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY if a
+ * slot could not be allocated for the user data.
+ **/
+cairo_status_t
+cairo_font_face_set_user_data (cairo_font_face_t	   *font_face,
+			       const cairo_user_data_key_t *key,
+			       void			   *user_data,
+			       cairo_destroy_func_t	    destroy)
+{
+    if (CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->ref_count))
+	return font_face->status;
+
+    return _cairo_user_data_array_set_data (&font_face->user_data,
+					    key, user_data, destroy);
+}
+slim_hidden_def (cairo_font_face_set_user_data);
+
+static const cairo_font_face_backend_t _cairo_toy_font_face_backend;
+
+static int
+_cairo_toy_font_face_keys_equal (const void *key_a,
+				 const void *key_b);
+
+/* We maintain a hash table from family/weight/slant =>
+ * #cairo_font_face_t for #cairo_toy_font_t. The primary purpose of
+ * this mapping is to provide unique #cairo_font_face_t values so that
+ * our cache and mapping from #cairo_font_face_t => #cairo_scaled_font_t
+ * works. Once the corresponding #cairo_font_face_t objects fall out of
+ * downstream caches, we don't need them in this hash table anymore.
+ *
+ * Modifications to this hash table are protected by
+ * _cairo_font_face_mutex.
+ */
+static cairo_hash_table_t *cairo_toy_font_face_hash_table = NULL;
+
+static cairo_hash_table_t *
+_cairo_toy_font_face_hash_table_lock (void)
+{
+    CAIRO_MUTEX_LOCK (_cairo_font_face_mutex);
+
+    if (cairo_toy_font_face_hash_table == NULL)
+    {
+	cairo_toy_font_face_hash_table =
+	    _cairo_hash_table_create (_cairo_toy_font_face_keys_equal);
+
+	if (cairo_toy_font_face_hash_table == NULL) {
+	    CAIRO_MUTEX_UNLOCK (_cairo_font_face_mutex);
+	    return NULL;
+	}
+    }
+
+    return cairo_toy_font_face_hash_table;
+}
+
+static void
+_cairo_toy_font_face_hash_table_unlock (void)
+{
+    CAIRO_MUTEX_UNLOCK (_cairo_font_face_mutex);
+}
+
+/**
+ * _cairo_toy_font_face_init_key:
+ *
+ * Initialize those portions of #cairo_toy_font_face_t needed to use
+ * it as a hash table key, including the hash code buried away in
+ * font_face->base.hash_entry. No memory allocation is performed here
+ * so that no fini call is needed. We do this to make it easier to use
+ * an automatic #cairo_toy_font_face_t variable as a key.
+ **/
+static void
+_cairo_toy_font_face_init_key (cairo_toy_font_face_t *key,
+			       const char	     *family,
+			       cairo_font_slant_t     slant,
+			       cairo_font_weight_t    weight)
+{
+    unsigned long hash;
+
+    key->family = family;
+    key->owns_family = FALSE;
+
+    key->slant = slant;
+    key->weight = weight;
+
+    /* 1607 and 1451 are just a couple of arbitrary primes. */
+    hash = _cairo_hash_string (family);
+    hash += ((unsigned long) slant) * 1607;
+    hash += ((unsigned long) weight) * 1451;
+
+    assert (hash != 0);
+    key->base.hash_entry.hash = hash;
+}
+
+static cairo_status_t
+_cairo_toy_font_face_init (cairo_toy_font_face_t *font_face,
+			   const char	         *family,
+			   cairo_font_slant_t	  slant,
+			   cairo_font_weight_t	  weight)
+{
+    char *family_copy;
+
+    family_copy = strdup (family);
+    if (family_copy == NULL)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    _cairo_toy_font_face_init_key (font_face, family_copy,
+				      slant, weight);
+    font_face->owns_family = TRUE;
+
+    _cairo_font_face_init (&font_face->base, &_cairo_toy_font_face_backend);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_toy_font_face_fini (cairo_toy_font_face_t *font_face)
+{
+    /* We assert here that we own font_face->family before casting
+     * away the const qualifer. */
+    assert (font_face->owns_family);
+    free ((char*) font_face->family);
+}
+
+static int
+_cairo_toy_font_face_keys_equal (const void *key_a,
+				 const void *key_b)
+{
+    const cairo_toy_font_face_t *face_a = key_a;
+    const cairo_toy_font_face_t *face_b = key_b;
+
+    return (strcmp (face_a->family, face_b->family) == 0 &&
+	    face_a->slant == face_b->slant &&
+	    face_a->weight == face_b->weight);
+}
+
+/**
+ * cairo_toy_font_face_create:
+ * @family: a font family name, encoded in UTF-8
+ * @slant: the slant for the font
+ * @weight: the weight for the font
+ *
+ * Creates a font face from a triplet of family, slant, and weight.
+ * These font faces are used in implementation of the the #cairo_t "toy"
+ * font API.
+ *
+ * If @family is the zero-length string "", the platform-specific default
+ * family is assumed.  The default family then can be queried using
+ * cairo_toy_font_face_get_family().
+ *
+ * The cairo_select_font_face() function uses this to create font faces.
+ * See that function for limitations of toy font faces.
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ *  cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.8
+ **/
+cairo_font_face_t *
+cairo_toy_font_face_create (const char          *family,
+			    cairo_font_slant_t   slant,
+			    cairo_font_weight_t  weight)
+{
+    cairo_status_t status;
+    cairo_toy_font_face_t key, *font_face;
+    cairo_hash_table_t *hash_table;
+
+    if (family == NULL)
+	return (cairo_font_face_t*) &_cairo_font_face_null_pointer;
+
+    /* Make sure we've got valid UTF-8 for the family */
+    status = _cairo_utf8_to_ucs4 (family, -1, NULL, NULL);
+    if (status == CAIRO_STATUS_INVALID_STRING)
+	return (cairo_font_face_t*) &_cairo_font_face_invalid_string;
+    else if (status)
+	return (cairo_font_face_t*) &_cairo_font_face_nil;
+
+    switch (slant) {
+	case CAIRO_FONT_SLANT_NORMAL:
+	case CAIRO_FONT_SLANT_ITALIC:
+	case CAIRO_FONT_SLANT_OBLIQUE:
+	    break;
+	default:
+	    return (cairo_font_face_t*) &_cairo_font_face_invalid_slant;
+    }
+
+    switch (weight) {
+	case CAIRO_FONT_WEIGHT_NORMAL:
+	case CAIRO_FONT_WEIGHT_BOLD:
+	    break;
+	default:
+	    return (cairo_font_face_t*) &_cairo_font_face_invalid_weight;
+    }
+
+    if (*family == '\0')
+	family = CAIRO_FONT_FAMILY_DEFAULT;
+
+    hash_table = _cairo_toy_font_face_hash_table_lock ();
+    if (hash_table == NULL)
+	goto UNWIND;
+
+    _cairo_toy_font_face_init_key (&key, family, slant, weight);
+
+    /* Return existing font_face if it exists in the hash table. */
+    if (_cairo_hash_table_lookup (hash_table,
+				  &key.base.hash_entry,
+				  (cairo_hash_entry_t **) &font_face))
+    {
+	if (! font_face->base.status)  {
+	    /* We increment the reference count here manually to avoid
+	       double-locking. */
+	    _cairo_reference_count_inc (&font_face->base.ref_count);
+	    _cairo_toy_font_face_hash_table_unlock ();
+	    return &font_face->base;
+	}
+
+	/* remove the bad font from the hash table */
+	_cairo_hash_table_remove (hash_table, &key.base.hash_entry);
+	font_face->base.hash_entry.hash = 0;
+    }
+
+    /* Otherwise create it and insert into hash table. */
+    font_face = malloc (sizeof (cairo_toy_font_face_t));
+    if (font_face == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	goto UNWIND_HASH_TABLE_LOCK;
+    }
+
+    status = _cairo_toy_font_face_init (font_face, family, slant, weight);
+    if (status)
+	goto UNWIND_FONT_FACE_MALLOC;
+
+    status = _cairo_hash_table_insert (hash_table, &font_face->base.hash_entry);
+    if (status)
+	goto UNWIND_FONT_FACE_INIT;
+
+    _cairo_toy_font_face_hash_table_unlock ();
+
+    return &font_face->base;
+
+ UNWIND_FONT_FACE_INIT:
+    _cairo_toy_font_face_fini (font_face);
+ UNWIND_FONT_FACE_MALLOC:
+    free (font_face);
+ UNWIND_HASH_TABLE_LOCK:
+    _cairo_toy_font_face_hash_table_unlock ();
+ UNWIND:
+    return (cairo_font_face_t*) &_cairo_font_face_nil;
+}
+slim_hidden_def (cairo_toy_font_face_create);
+
+static void
+_cairo_toy_font_face_destroy (void *abstract_face)
+{
+    cairo_toy_font_face_t *font_face = abstract_face;
+    cairo_hash_table_t *hash_table;
+
+    if (font_face == NULL ||
+	    CAIRO_REFERENCE_COUNT_IS_INVALID (&font_face->base.ref_count))
+	return;
+
+    hash_table = _cairo_toy_font_face_hash_table_lock ();
+    /* All created objects must have been mapped in the hash table. */
+    assert (hash_table != NULL);
+
+    if (font_face->base.hash_entry.hash != 0)
+	_cairo_hash_table_remove (hash_table, &font_face->base.hash_entry);
+
+    _cairo_toy_font_face_hash_table_unlock ();
+
+    _cairo_toy_font_face_fini (font_face);
+}
+
+static cairo_status_t
+_cairo_toy_font_face_scaled_font_get_implementation (void                *abstract_font_face,
+						     cairo_font_face_t **font_face_out)
+{
+    cairo_toy_font_face_t *font_face = abstract_font_face;
+    cairo_status_t status;
+
+    if (font_face->base.status)
+	return font_face->base.status;
+
+    if (CAIRO_SCALED_FONT_BACKEND_DEFAULT != &_cairo_user_scaled_font_backend)
+    {
+	const cairo_scaled_font_backend_t * backend = CAIRO_SCALED_FONT_BACKEND_DEFAULT;
+
+	if (backend->get_implementation == NULL) {
+	    *font_face_out = &font_face->base;
+	    return CAIRO_STATUS_SUCCESS;
+	}
+
+	status = backend->get_implementation (font_face,
+					      font_face_out);
+
+	if (status != CAIRO_INT_STATUS_UNSUPPORTED)
+	    return _cairo_font_face_set_error (&font_face->base, status);
+    }
+
+    status = _cairo_user_scaled_font_backend.get_implementation (font_face,
+								 font_face_out);
+
+    return _cairo_font_face_set_error (&font_face->base, status);
+}
+
+static cairo_status_t
+_cairo_toy_font_face_scaled_font_create (void                *abstract_font_face,
+					 const cairo_matrix_t       *font_matrix,
+					 const cairo_matrix_t       *ctm,
+					 const cairo_font_options_t *options,
+					 cairo_scaled_font_t	   **scaled_font)
+{
+    cairo_toy_font_face_t *font_face = abstract_font_face;
+    cairo_status_t status;
+
+    if (font_face->base.status)
+	return font_face->base.status;
+
+    status = cairo_font_options_status ((cairo_font_options_t *) options);
+    if (status)
+	return status;
+
+    if (CAIRO_SCALED_FONT_BACKEND_DEFAULT != &_cairo_user_scaled_font_backend)
+    {
+	const cairo_scaled_font_backend_t * backend = CAIRO_SCALED_FONT_BACKEND_DEFAULT;
+
+	*scaled_font = NULL;
+	status =  backend->create_toy (font_face,
+				       font_matrix,
+				       ctm,
+				       options,
+				       scaled_font);
+
+	if (status != CAIRO_INT_STATUS_UNSUPPORTED)
+	    return _cairo_font_face_set_error (&font_face->base, status);
+
+	if (*scaled_font)
+	    cairo_scaled_font_destroy (*scaled_font);
+    }
+
+    status = _cairo_user_scaled_font_backend.create_toy (font_face,
+							 font_matrix,
+							 ctm,
+							 options,
+							 scaled_font);
+
+    return _cairo_font_face_set_error (&font_face->base, status);
+}
+
+static cairo_bool_t
+_cairo_font_face_is_toy (cairo_font_face_t *font_face)
+{
+    return font_face->backend == &_cairo_toy_font_face_backend;
+}
+
+/**
+ * cairo_toy_font_face_get_family:
+ * @font_face: A toy font face
+ *
+ * Gets the familly name of a toy font.
+ *
+ * Return value: The family name.  This string is owned by the font face
+ * and remains valid as long as the font face is alive (referenced).
+ *
+ * Since: 1.8
+ **/
+const char *
+cairo_toy_font_face_get_family (cairo_font_face_t *font_face)
+{
+    cairo_toy_font_face_t *toy_font_face = (cairo_toy_font_face_t *) font_face;
+    if (! _cairo_font_face_is_toy (font_face)) {
+	if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
+	    return CAIRO_FONT_FAMILY_DEFAULT;
+    }
+    assert (toy_font_face->owns_family);
+    return toy_font_face->family;
+}
+
+/**
+ * cairo_toy_font_face_get_slant:
+ * @font_face: A toy font face
+ *
+ * Gets the slant a toy font.
+ *
+ * Return value: The slant value
+ *
+ * Since: 1.8
+ **/
+cairo_font_slant_t
+cairo_toy_font_face_get_slant (cairo_font_face_t *font_face)
+{
+    cairo_toy_font_face_t *toy_font_face = (cairo_toy_font_face_t *) font_face;
+    if (! _cairo_font_face_is_toy (font_face)) {
+	if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
+	    return CAIRO_FONT_SLANT_DEFAULT;
+    }
+    return toy_font_face->slant;
+}
+slim_hidden_def (cairo_toy_font_face_get_slant);
+
+/**
+ * cairo_toy_font_face_get_weight:
+ * @font_face: A toy font face
+ *
+ * Gets the weight a toy font.
+ *
+ * Return value: The weight value
+ *
+ * Since: 1.8
+ **/
+cairo_font_weight_t
+cairo_toy_font_face_get_weight (cairo_font_face_t *font_face)
+{
+    cairo_toy_font_face_t *toy_font_face = (cairo_toy_font_face_t *) font_face;
+    if (! _cairo_font_face_is_toy (font_face)) {
+	if (_cairo_font_face_set_error (font_face, CAIRO_STATUS_FONT_TYPE_MISMATCH))
+	    return CAIRO_FONT_WEIGHT_DEFAULT;
+    }
+    return toy_font_face->weight;
+}
+slim_hidden_def (cairo_toy_font_face_get_weight);
+
+static const cairo_font_face_backend_t _cairo_toy_font_face_backend = {
+    CAIRO_FONT_TYPE_TOY,
+    _cairo_toy_font_face_destroy,
+    _cairo_toy_font_face_scaled_font_get_implementation,
+    _cairo_toy_font_face_scaled_font_create
+};
+
+void
+_cairo_unscaled_font_init (cairo_unscaled_font_t               *unscaled_font,
+			   const cairo_unscaled_font_backend_t *backend)
+{
+    CAIRO_REFERENCE_COUNT_INIT (&unscaled_font->ref_count, 1);
+    unscaled_font->backend = backend;
+}
+
+cairo_unscaled_font_t *
+_cairo_unscaled_font_reference (cairo_unscaled_font_t *unscaled_font)
+{
+    if (unscaled_font == NULL)
+	return NULL;
+
+    assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&unscaled_font->ref_count));
+
+    _cairo_reference_count_inc (&unscaled_font->ref_count);
+
+    return unscaled_font;
+}
+
+void
+_cairo_unscaled_font_destroy (cairo_unscaled_font_t *unscaled_font)
+{
+    if (unscaled_font == NULL)
+	return;
+
+    assert (CAIRO_REFERENCE_COUNT_HAS_REFERENCE (&unscaled_font->ref_count));
+
+    if (! _cairo_reference_count_dec_and_test (&unscaled_font->ref_count))
+	return;
+
+    unscaled_font->backend->destroy (unscaled_font);
+
+    free (unscaled_font);
+}
+
+void
+_cairo_font_face_reset_static_data (void)
+{
+    _cairo_scaled_font_map_destroy ();
+
+    /* We manually acquire the lock rather than calling
+     * cairo_toy_font_face_hash_table_lock simply to avoid
+     * creating the table only to destroy it again. */
+    CAIRO_MUTEX_LOCK (_cairo_font_face_mutex);
+    _cairo_hash_table_destroy (cairo_toy_font_face_hash_table);
+    cairo_toy_font_face_hash_table = NULL;
+    CAIRO_MUTEX_UNLOCK (_cairo_font_face_mutex);
+}

uppdev/plugin/cairo/lib/cairo-font-options.c

@@ -0,0 +1,406 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *      Owen Taylor <otaylor@redhat.com>
+ */
+
+#include "cairoint.h"
+
+static const cairo_font_options_t _cairo_font_options_nil = {
+    CAIRO_ANTIALIAS_DEFAULT,
+    CAIRO_SUBPIXEL_ORDER_DEFAULT,
+    CAIRO_HINT_STYLE_DEFAULT,
+    CAIRO_HINT_METRICS_DEFAULT
+};
+
+/**
+ * _cairo_font_options_init_default:
+ * @options: a #cairo_font_options_t
+ *
+ * Initializes all fields of the font options object to default values.
+ **/
+void
+_cairo_font_options_init_default (cairo_font_options_t *options)
+{
+    options->antialias = CAIRO_ANTIALIAS_DEFAULT;
+    options->subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
+    options->hint_style = CAIRO_HINT_STYLE_DEFAULT;
+    options->hint_metrics = CAIRO_HINT_METRICS_DEFAULT;
+}
+
+void
+_cairo_font_options_init_copy (cairo_font_options_t		*options,
+			       const cairo_font_options_t	*other)
+{
+    options->antialias = other->antialias;
+    options->subpixel_order = other->subpixel_order;
+    options->hint_style = other->hint_style;
+    options->hint_metrics = other->hint_metrics;
+}
+
+/**
+ * cairo_font_options_create:
+ *
+ * Allocates a new font options object with all options initialized
+ *  to default values.
+ *
+ * Return value: a newly allocated #cairo_font_options_t. Free with
+ *   cairo_font_options_destroy(). This function always returns a
+ *   valid pointer; if memory cannot be allocated, then a special
+ *   error object is returned where all operations on the object do nothing.
+ *   You can check for this with cairo_font_options_status().
+ **/
+cairo_font_options_t *
+cairo_font_options_create (void)
+{
+    cairo_font_options_t *options;
+
+    options = malloc (sizeof (cairo_font_options_t));
+    if (!options) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_font_options_t *) &_cairo_font_options_nil;
+    }
+
+    _cairo_font_options_init_default (options);
+
+    return options;
+}
+
+/**
+ * cairo_font_options_copy:
+ * @original: a #cairo_font_options_t
+ *
+ * Allocates a new font options object copying the option values from
+ *  @original.
+ *
+ * Return value: a newly allocated #cairo_font_options_t. Free with
+ *   cairo_font_options_destroy(). This function always returns a
+ *   valid pointer; if memory cannot be allocated, then a special
+ *   error object is returned where all operations on the object do nothing.
+ *   You can check for this with cairo_font_options_status().
+ **/
+cairo_font_options_t *
+cairo_font_options_copy (const cairo_font_options_t *original)
+{
+    cairo_font_options_t *options;
+
+    if (cairo_font_options_status ((cairo_font_options_t *) original))
+	return (cairo_font_options_t *) &_cairo_font_options_nil;
+
+    options = malloc (sizeof (cairo_font_options_t));
+    if (!options) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_font_options_t *) &_cairo_font_options_nil;
+    }
+
+    _cairo_font_options_init_copy (options, original);
+
+    return options;
+}
+
+/**
+ * cairo_font_options_destroy:
+ * @options: a #cairo_font_options_t
+ *
+ * Destroys a #cairo_font_options_t object created with with
+ * cairo_font_options_create() or cairo_font_options_copy().
+ **/
+void
+cairo_font_options_destroy (cairo_font_options_t *options)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    free (options);
+}
+
+/**
+ * cairo_font_options_status:
+ * @options: a #cairo_font_options_t
+ *
+ * Checks whether an error has previously occurred for this
+ * font options object
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY
+ **/
+cairo_status_t
+cairo_font_options_status (cairo_font_options_t *options)
+{
+    if (options == NULL)
+	return CAIRO_STATUS_NULL_POINTER;
+    else if (options == (cairo_font_options_t *) &_cairo_font_options_nil)
+	return CAIRO_STATUS_NO_MEMORY;
+    else
+	return CAIRO_STATUS_SUCCESS;
+}
+slim_hidden_def (cairo_font_options_status);
+
+/**
+ * cairo_font_options_merge:
+ * @options: a #cairo_font_options_t
+ * @other: another #cairo_font_options_t
+ *
+ * Merges non-default options from @other into @options, replacing
+ * existing values. This operation can be thought of as somewhat
+ * similar to compositing @other onto @options with the operation
+ * of %CAIRO_OPERATION_OVER.
+ **/
+void
+cairo_font_options_merge (cairo_font_options_t       *options,
+			  const cairo_font_options_t *other)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    if (cairo_font_options_status ((cairo_font_options_t *) other))
+	return;
+
+    if (other->antialias != CAIRO_ANTIALIAS_DEFAULT)
+	options->antialias = other->antialias;
+    if (other->subpixel_order != CAIRO_SUBPIXEL_ORDER_DEFAULT)
+	options->subpixel_order = other->subpixel_order;
+    if (other->hint_style != CAIRO_HINT_STYLE_DEFAULT)
+	options->hint_style = other->hint_style;
+    if (other->hint_metrics != CAIRO_HINT_METRICS_DEFAULT)
+	options->hint_metrics = other->hint_metrics;
+}
+slim_hidden_def (cairo_font_options_merge);
+
+/**
+ * cairo_font_options_equal:
+ * @options: a #cairo_font_options_t
+ * @other: another #cairo_font_options_t
+ *
+ * Compares two font options objects for equality.
+ *
+ * Return value: %TRUE if all fields of the two font options objects match.
+ *	Note that this function will return %FALSE if either object is in
+ *	error.
+ **/
+cairo_bool_t
+cairo_font_options_equal (const cairo_font_options_t *options,
+			  const cairo_font_options_t *other)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	return FALSE;
+    if (cairo_font_options_status ((cairo_font_options_t *) other))
+	return FALSE;
+
+    if (options == other)
+	return TRUE;
+
+    return (options->antialias == other->antialias &&
+	    options->subpixel_order == other->subpixel_order &&
+	    options->hint_style == other->hint_style &&
+	    options->hint_metrics == other->hint_metrics);
+}
+slim_hidden_def (cairo_font_options_equal);
+
+/**
+ * cairo_font_options_hash:
+ * @options: a #cairo_font_options_t
+ *
+ * Compute a hash for the font options object; this value will
+ * be useful when storing an object containing a #cairo_font_options_t
+ * in a hash table.
+ *
+ * Return value: the hash value for the font options object.
+ *   The return value can be cast to a 32-bit type if a
+ *   32-bit hash value is needed.
+ **/
+unsigned long
+cairo_font_options_hash (const cairo_font_options_t *options)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	options = &_cairo_font_options_nil; /* force default values */
+
+    return ((options->antialias) |
+	    (options->subpixel_order << 4) |
+	    (options->hint_style << 8) |
+	    (options->hint_metrics << 16));
+}
+slim_hidden_def (cairo_font_options_hash);
+
+/**
+ * cairo_font_options_set_antialias:
+ * @options: a #cairo_font_options_t
+ * @antialias: the new antialiasing mode
+ *
+ * Sets the antialiasing mode for the font options object. This
+ * specifies the type of antialiasing to do when rendering text.
+ **/
+void
+cairo_font_options_set_antialias (cairo_font_options_t *options,
+				  cairo_antialias_t     antialias)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    options->antialias = antialias;
+}
+slim_hidden_def (cairo_font_options_set_antialias);
+
+/**
+ * cairo_font_options_get_antialias:
+ * @options: a #cairo_font_options_t
+ *
+ * Gets the antialiasing mode for the font options object.
+ *
+ * Return value: the antialiasing mode
+ **/
+cairo_antialias_t
+cairo_font_options_get_antialias (const cairo_font_options_t *options)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	return CAIRO_ANTIALIAS_DEFAULT;
+
+    return options->antialias;
+}
+
+/**
+ * cairo_font_options_set_subpixel_order:
+ * @options: a #cairo_font_options_t
+ * @subpixel_order: the new subpixel order
+ *
+ * Sets the subpixel order for the font options object. The subpixel
+ * order specifies the order of color elements within each pixel on
+ * the display device when rendering with an antialiasing mode of
+ * %CAIRO_ANTIALIAS_SUBPIXEL. See the documentation for
+ * #cairo_subpixel_order_t for full details.
+ **/
+void
+cairo_font_options_set_subpixel_order (cairo_font_options_t   *options,
+				       cairo_subpixel_order_t  subpixel_order)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    options->subpixel_order = subpixel_order;
+}
+slim_hidden_def (cairo_font_options_set_subpixel_order);
+
+/**
+ * cairo_font_options_get_subpixel_order:
+ * @options: a #cairo_font_options_t
+ *
+ * Gets the subpixel order for the font options object.
+ * See the documentation for #cairo_subpixel_order_t for full details.
+ *
+ * Return value: the subpixel order for the font options object
+ **/
+cairo_subpixel_order_t
+cairo_font_options_get_subpixel_order (const cairo_font_options_t *options)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	return CAIRO_SUBPIXEL_ORDER_DEFAULT;
+
+    return options->subpixel_order;
+}
+
+/**
+ * cairo_font_options_set_hint_style:
+ * @options: a #cairo_font_options_t
+ * @hint_style: the new hint style
+ *
+ * Sets the hint style for font outlines for the font options object.
+ * This controls whether to fit font outlines to the pixel grid,
+ * and if so, whether to optimize for fidelity or contrast.
+ * See the documentation for #cairo_hint_style_t for full details.
+ **/
+void
+cairo_font_options_set_hint_style (cairo_font_options_t *options,
+				   cairo_hint_style_t    hint_style)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    options->hint_style = hint_style;
+}
+slim_hidden_def (cairo_font_options_set_hint_style);
+
+/**
+ * cairo_font_options_get_hint_style:
+ * @options: a #cairo_font_options_t
+ *
+ * Gets the hint style for font outlines for the font options object.
+ * See the documentation for #cairo_hint_style_t for full details.
+ *
+ * Return value: the hint style for the font options object
+ **/
+cairo_hint_style_t
+cairo_font_options_get_hint_style (const cairo_font_options_t *options)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	return CAIRO_HINT_STYLE_DEFAULT;
+
+    return options->hint_style;
+}
+
+/**
+ * cairo_font_options_set_hint_metrics:
+ * @options: a #cairo_font_options_t
+ * @hint_metrics: the new metrics hinting mode
+ *
+ * Sets the metrics hinting mode for the font options object. This
+ * controls whether metrics are quantized to integer values in
+ * device units.
+ * See the documentation for #cairo_hint_metrics_t for full details.
+ **/
+void
+cairo_font_options_set_hint_metrics (cairo_font_options_t *options,
+				     cairo_hint_metrics_t  hint_metrics)
+{
+    if (cairo_font_options_status (options))
+	return;
+
+    options->hint_metrics = hint_metrics;
+}
+slim_hidden_def (cairo_font_options_set_hint_metrics);
+
+/**
+ * cairo_font_options_get_hint_metrics:
+ * @options: a #cairo_font_options_t
+ *
+ * Gets the metrics hinting mode for the font options object.
+ * See the documentation for #cairo_hint_metrics_t for full details.
+ *
+ * Return value: the metrics hinting mode for the font options object
+ **/
+cairo_hint_metrics_t
+cairo_font_options_get_hint_metrics (const cairo_font_options_t *options)
+{
+    if (cairo_font_options_status ((cairo_font_options_t *) options))
+	return CAIRO_HINT_METRICS_DEFAULT;
+
+    return options->hint_metrics;
+}

uppdev/plugin/cairo/lib/cairo-freelist-private.h

@@ -0,0 +1,71 @@
+/*
+ * Copyright © 2006 Joonas Pihlaja
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+#ifndef CAIRO_FREELIST_H
+#define CAIRO_FREELIST_H
+
+#include "cairo-types-private.h"
+#include "cairo-compiler-private.h"
+
+/* Opaque implementation types. */
+typedef struct _cairo_freelist cairo_freelist_t;
+typedef struct _cairo_freelist_node cairo_freelist_node_t;
+
+struct _cairo_freelist_node {
+    cairo_freelist_node_t *next;
+};
+
+struct _cairo_freelist {
+    cairo_freelist_node_t *first_free_node;
+    unsigned nodesize;
+};
+
+
+/* Initialise a freelist that will be responsible for allocating
+ * nodes of size nodesize. */
+cairo_private void
+_cairo_freelist_init (cairo_freelist_t *freelist, unsigned nodesize);
+
+/* Deallocate any nodes in the freelist. */
+cairo_private void
+_cairo_freelist_fini (cairo_freelist_t *freelist);
+
+/* Allocate a new node from the freelist.  If the freelist contains no
+ * nodes, a new one will be allocated using malloc().  The caller is
+ * responsible for calling _cairo_freelist_free() or free() on the
+ * returned node.  Returns %NULL on memory allocation error. */
+cairo_private void *
+_cairo_freelist_alloc (cairo_freelist_t *freelist);
+
+/* Allocate a new node from the freelist.  If the freelist contains no
+ * nodes, a new one will be allocated using calloc().  The caller is
+ * responsible for calling _cairo_freelist_free() or free() on the
+ * returned node.  Returns %NULL on memory allocation error. */
+cairo_private void *
+_cairo_freelist_calloc (cairo_freelist_t *freelist);
+
+/* Return a node to the freelist. This does not deallocate the memory,
+ * but makes it available for later reuse by
+ * _cairo_freelist_alloc(). */
+cairo_private void
+_cairo_freelist_free (cairo_freelist_t *freelist, void *node);
+
+#endif /* CAIRO_FREELIST_H */

uppdev/plugin/cairo/lib/cairo-freelist.c

@@ -0,0 +1,73 @@
+/*
+ * Copyright © 2006 Joonas Pihlaja
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include "cairoint.h"
+
+#include "cairo-freelist-private.h"
+
+void
+_cairo_freelist_init (cairo_freelist_t *freelist, unsigned nodesize)
+{
+    memset (freelist, 0, sizeof(cairo_freelist_t));
+    freelist->nodesize = nodesize;
+}
+
+void
+_cairo_freelist_fini (cairo_freelist_t *freelist)
+{
+    cairo_freelist_node_t *node = freelist->first_free_node;
+    while (node) {
+	cairo_freelist_node_t *next = node->next;
+	free (node);
+	node = next;
+    }
+}
+
+void *
+_cairo_freelist_alloc (cairo_freelist_t *freelist)
+{
+    if (freelist->first_free_node) {
+	cairo_freelist_node_t *node = freelist->first_free_node;
+	freelist->first_free_node = node->next;
+	return (void*)node;
+    }
+    return malloc (freelist->nodesize);
+}
+
+void *
+_cairo_freelist_calloc (cairo_freelist_t *freelist)
+{
+    void *node = _cairo_freelist_alloc (freelist);
+    if (node)
+	memset (node, 0, freelist->nodesize);
+    return node;
+}
+
+void
+_cairo_freelist_free (cairo_freelist_t *freelist, void *voidnode)
+{
+    cairo_freelist_node_t *node = voidnode;
+    if (node) {
+	node->next = freelist->first_free_node;
+	freelist->first_free_node = node;
+    }
+}

uppdev/plugin/cairo/lib/cairo-ft-private.h

@@ -0,0 +1,70 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Graydon Hoare <graydon@redhat.com>
+ *	Owen Taylor <otaylor@redhat.com>
+ */
+
+#ifndef CAIRO_FT_PRIVATE_H
+#define CAIRO_FT_PRIVATE_H
+
+#include "cairo-ft.h"
+#include "cairoint.h"
+
+#if CAIRO_HAS_FT_FONT
+
+CAIRO_BEGIN_DECLS
+
+typedef struct _cairo_ft_unscaled_font cairo_ft_unscaled_font_t;
+
+cairo_private cairo_bool_t
+_cairo_scaled_font_is_ft (cairo_scaled_font_t *scaled_font);
+
+/* These functions are needed by the PDF backend, which needs to keep track of the
+ * the different fonts-on-disk used by a document, so it can embed them
+ */
+cairo_private cairo_unscaled_font_t *
+_cairo_ft_scaled_font_get_unscaled_font (cairo_scaled_font_t *scaled_font);
+
+cairo_private FT_Face
+_cairo_ft_unscaled_font_lock_face (cairo_ft_unscaled_font_t *unscaled);
+
+cairo_private void
+_cairo_ft_unscaled_font_unlock_face (cairo_ft_unscaled_font_t *unscaled);
+
+cairo_private cairo_bool_t
+_cairo_ft_scaled_font_is_vertical (cairo_scaled_font_t *scaled_font);
+
+CAIRO_END_DECLS
+
+#endif /* CAIRO_HAS_FT_FONT */
+#endif /* CAIRO_FT_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-ft.h

@@ -0,0 +1,75 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Graydon Hoare <graydon@redhat.com>
+ *	Owen Taylor <otaylor@redhat.com>
+ */
+
+#ifndef CAIRO_FT_H
+#define CAIRO_FT_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_FT_FONT
+
+/* Fontconfig/Freetype platform-specific font interface */
+
+#include <fontconfig/fontconfig.h>
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_font_face_t *
+cairo_ft_font_face_create_for_pattern (FcPattern *pattern);
+
+cairo_public void
+cairo_ft_font_options_substitute (const cairo_font_options_t *options,
+				  FcPattern                  *pattern);
+
+cairo_public cairo_font_face_t *
+cairo_ft_font_face_create_for_ft_face (FT_Face         face,
+				       int             load_flags);
+
+cairo_public FT_Face
+cairo_ft_scaled_font_lock_face (cairo_scaled_font_t *scaled_font);
+
+cairo_public void
+cairo_ft_scaled_font_unlock_face (cairo_scaled_font_t *scaled_font);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_FT_FONT */
+# error Cairo was not compiled with support for the freetype font backend
+#endif /* CAIRO_HAS_FT_FONT */
+
+#endif /* CAIRO_FT_H */

uppdev/plugin/cairo/lib/cairo-glitz-private.h

@@ -0,0 +1,41 @@
+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ */
+
+#ifndef CAIRO_GLITZ_PRIVATE_H
+#define CAIRO_GLITZ_PRIVATE_H
+
+#include "cairoint.h"
+#include "cairo-glitz.h"
+
+slim_hidden_proto (cairo_glitz_surface_create);
+
+#endif /* CAIRO_GLITZ_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-glitz.h

@@ -0,0 +1,57 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_GLITZ_H
+#define CAIRO_GLITZ_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_GLITZ_SURFACE
+
+#include <glitz.h>
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_glitz_surface_create (glitz_surface_t *surface);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_GLITZ_SURFACE */
+# error Cairo was not compiled with support for the glitz backend
+#endif /* CAIRO_HAS_GLITZ_SURFACE */
+
+#endif /* CAIRO_GLITZ_H */

uppdev/plugin/cairo/lib/cairo-gstate-private.h

@@ -0,0 +1,71 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#ifndef CAIRO_GSTATE_PRIVATE_H
+#define CAIRO_GSTATE_PRIVATE_H
+
+#include "cairo-clip-private.h"
+
+struct _cairo_gstate {
+    cairo_operator_t op;
+
+    double tolerance;
+    cairo_antialias_t antialias;
+
+    cairo_stroke_style_t stroke_style;
+
+    cairo_fill_rule_t fill_rule;
+
+    cairo_font_face_t *font_face;
+    cairo_scaled_font_t *scaled_font;	/* Specific to the current CTM */
+    cairo_matrix_t font_matrix;
+    cairo_font_options_t font_options;
+
+    cairo_clip_t clip;
+
+    cairo_surface_t *target;		/* The target to which all rendering is directed */
+    cairo_surface_t *parent_target;	/* The previous target which was receiving rendering */
+    cairo_surface_t *original_target;	/* The original target the initial gstate was created with */
+
+    cairo_matrix_t ctm;
+    cairo_matrix_t ctm_inverse;
+    cairo_matrix_t source_ctm_inverse; /* At the time ->source was set */
+
+    cairo_pattern_t *source;
+
+    struct _cairo_gstate *next;
+};
+
+#endif /* CAIRO_GSTATE_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-hash-private.h

@@ -0,0 +1,88 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc.
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *	Graydon Hoare <graydon@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_HASH_PRIVATE_H
+#define CAIRO_HASH_PRIVATE_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-types-private.h"
+
+/* XXX: I'd like this file to be self-contained in terms of
+ * includeability, but that's not really possible with the current
+ * monolithic cairoint.h. So, for now, just include cairoint.h instead
+ * if you want to include this file. */
+
+typedef cairo_bool_t
+(*cairo_hash_keys_equal_func_t) (const void *key_a, const void *key_b);
+
+typedef cairo_bool_t
+(*cairo_hash_predicate_func_t) (void *entry);
+
+typedef void
+(*cairo_hash_callback_func_t) (void *entry,
+			       void *closure);
+
+cairo_private cairo_hash_table_t *
+_cairo_hash_table_create (cairo_hash_keys_equal_func_t keys_equal);
+
+cairo_private void
+_cairo_hash_table_destroy (cairo_hash_table_t *hash_table);
+
+cairo_private cairo_bool_t
+_cairo_hash_table_lookup (cairo_hash_table_t  *hash_table,
+			  cairo_hash_entry_t  *key,
+			  cairo_hash_entry_t **entry_return);
+
+cairo_private void *
+_cairo_hash_table_random_entry (cairo_hash_table_t	   *hash_table,
+				cairo_hash_predicate_func_t predicate);
+
+cairo_private cairo_status_t
+_cairo_hash_table_insert (cairo_hash_table_t *hash_table,
+			  cairo_hash_entry_t *entry);
+
+cairo_private void
+_cairo_hash_table_remove (cairo_hash_table_t *hash_table,
+			  cairo_hash_entry_t *key);
+
+cairo_private void
+_cairo_hash_table_foreach (cairo_hash_table_t 	      *hash_table,
+			   cairo_hash_callback_func_t  hash_callback,
+			   void			      *closure);
+
+#endif

uppdev/plugin/cairo/lib/cairo-hash.c

@@ -0,0 +1,576 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc.
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *      Keith Packard <keithp@keithp.com>
+ *	Graydon Hoare <graydon@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+/*
+ * An entry can be in one of three states:
+ *
+ * FREE: Entry has never been used, terminates all searches.
+ *       Appears in the table as a %NULL pointer.
+ *
+ * DEAD: Entry had been live in the past. A dead entry can be reused
+ *       but does not terminate a search for an exact entry.
+ *       Appears in the table as a pointer to DEAD_ENTRY.
+ *
+ * LIVE: Entry is currently being used.
+ *       Appears in the table as any non-%NULL, non-DEAD_ENTRY pointer.
+ */
+
+static cairo_hash_entry_t dead_entry = { 0 };
+#define DEAD_ENTRY (&dead_entry)
+
+#define ENTRY_IS_FREE(entry) ((entry) == NULL)
+#define ENTRY_IS_DEAD(entry) ((entry) == DEAD_ENTRY)
+#define ENTRY_IS_LIVE(entry) ((entry) && ! ENTRY_IS_DEAD(entry))
+
+/* We expect keys will not be destroyed frequently, so our table does not
+ * contain any explicit shrinking code nor any chain-coalescing code for
+ * entries randomly deleted by memory pressure (except during rehashing, of
+ * course). These assumptions are potentially bad, but they make the
+ * implementation straightforward.
+ *
+ * Revisit later if evidence appears that we're using excessive memory from
+ * a mostly-dead table.
+ *
+ * This table is open-addressed with double hashing. Each table size is a
+ * prime chosen to be a little more than double the high water mark for a
+ * given arrangement, so the tables should remain < 50% full. The table
+ * size makes for the "first" hash modulus; a second prime (2 less than the
+ * first prime) serves as the "second" hash modulus, which is co-prime and
+ * thus guarantees a complete permutation of table indices.
+ *
+ * This structure, and accompanying table, is borrowed/modified from the
+ * file xserver/render/glyph.c in the freedesktop.org x server, with
+ * permission (and suggested modification of doubling sizes) by Keith
+ * Packard.
+ */
+
+typedef struct _cairo_hash_table_arrangement {
+    unsigned long high_water_mark;
+    unsigned long size;
+    unsigned long rehash;
+} cairo_hash_table_arrangement_t;
+
+static const cairo_hash_table_arrangement_t hash_table_arrangements [] = {
+    { 16,		43,		41		},
+    { 32,		73,		71		},
+    { 64,		151,		149		},
+    { 128,		283,		281		},
+    { 256,		571,		569		},
+    { 512,		1153,		1151		},
+    { 1024,		2269,		2267		},
+    { 2048,		4519,		4517		},
+    { 4096,		9013,		9011		},
+    { 8192,		18043,		18041		},
+    { 16384,		36109,		36107		},
+    { 32768,		72091,		72089		},
+    { 65536,		144409,		144407		},
+    { 131072,		288361,		288359		},
+    { 262144,		576883,		576881		},
+    { 524288,		1153459,	1153457		},
+    { 1048576,		2307163,	2307161		},
+    { 2097152,		4613893,	4613891		},
+    { 4194304,		9227641,	9227639		},
+    { 8388608,		18455029,	18455027	},
+    { 16777216,		36911011,	36911009	},
+    { 33554432,		73819861,	73819859 	},
+    { 67108864,		147639589,	147639587	},
+    { 134217728,	295279081,	295279079	},
+    { 268435456,	590559793,	590559791	}
+};
+
+#define NUM_HASH_TABLE_ARRANGEMENTS ARRAY_LENGTH (hash_table_arrangements)
+
+struct _cairo_hash_table {
+    cairo_hash_keys_equal_func_t keys_equal;
+
+    const cairo_hash_table_arrangement_t *arrangement;
+    cairo_hash_entry_t **entries;
+
+    unsigned long live_entries;
+    unsigned long iterating;   /* Iterating, no insert, no resize */
+};
+
+/**
+ * _cairo_hash_table_create:
+ * @keys_equal: a function to return %TRUE if two keys are equal
+ *
+ * Creates a new hash table which will use the keys_equal() function
+ * to compare hash keys. Data is provided to the hash table in the
+ * form of user-derived versions of #cairo_hash_entry_t. A hash entry
+ * must be able to hold both a key (including a hash code) and a
+ * value. Sometimes only the key will be necessary, (as in
+ * _cairo_hash_table_remove), and other times both a key and a value
+ * will be necessary, (as in _cairo_hash_table_insert).
+ *
+ * See #cairo_hash_entry_t for more details.
+ *
+ * Return value: the new hash table or %NULL if out of memory.
+ **/
+cairo_hash_table_t *
+_cairo_hash_table_create (cairo_hash_keys_equal_func_t keys_equal)
+{
+    cairo_hash_table_t *hash_table;
+
+    hash_table = malloc (sizeof (cairo_hash_table_t));
+    if (hash_table == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return NULL;
+    }
+
+    hash_table->keys_equal = keys_equal;
+
+    hash_table->arrangement = &hash_table_arrangements[0];
+
+    hash_table->entries = calloc (hash_table->arrangement->size,
+				  sizeof(cairo_hash_entry_t *));
+    if (hash_table->entries == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	free (hash_table);
+	return NULL;
+    }
+
+    hash_table->live_entries = 0;
+    hash_table->iterating = 0;
+
+    return hash_table;
+}
+
+/**
+ * _cairo_hash_table_destroy:
+ * @hash_table: an empty hash table to destroy
+ *
+ * Immediately destroys the given hash table, freeing all resources
+ * associated with it.
+ *
+ * WARNING: The hash_table must have no live entries in it before
+ * _cairo_hash_table_destroy is called. It is a fatal error otherwise,
+ * and this function will halt. The rationale for this behavior is to
+ * avoid memory leaks and to avoid needless complication of the API
+ * with destroy notifiy callbacks.
+ *
+ * WARNING: The hash_table must have no running iterators in it when
+ * _cairo_hash_table_destroy is called. It is a fatal error otherwise,
+ * and this function will halt.
+ **/
+void
+_cairo_hash_table_destroy (cairo_hash_table_t *hash_table)
+{
+    if (hash_table == NULL)
+	return;
+
+    /* The hash table must be empty. Otherwise, halt. */
+    assert (hash_table->live_entries == 0);
+    /* No iterators can be running. Otherwise, halt. */
+    assert (hash_table->iterating == 0);
+
+    free (hash_table->entries);
+    hash_table->entries = NULL;
+
+    free (hash_table);
+}
+
+/**
+ * _cairo_hash_table_lookup_internal:
+ *
+ * @hash_table: a #cairo_hash_table_t to search
+ * @key: the key to search on
+ * @hash_code: the hash_code for @key
+ * @key_unique: If %TRUE, then caller asserts that no key already
+ * exists that will compare equal to #key, so search can be
+ * optimized. If unsure, set to %FALSE and the code will always work.
+ *
+ * Search the hashtable for a live entry for which
+ * hash_table->keys_equal returns true. If no such entry exists then
+ * return the first available (free or dead entry).
+ *
+ * If the key_unique flag is set, then the search will never call
+ * hash_table->keys_equal and will act as if it always returned
+ * false. This is useful as a performance optimization in special
+ * circumstances where the caller knows that there is no existing
+ * entry in the hash table with a matching key.
+ *
+ * Return value: The matching entry in the hash table (if
+ * any). Otherwise, the first available entry. The caller should check
+ * entry->state to check whether a match was found or not.
+ **/
+static cairo_hash_entry_t **
+_cairo_hash_table_lookup_internal (cairo_hash_table_t *hash_table,
+				   cairo_hash_entry_t *key,
+				   cairo_bool_t	       key_is_unique)
+{
+    cairo_hash_entry_t **entry, **first_available = NULL;
+    unsigned long table_size, i, idx, step;
+
+    table_size = hash_table->arrangement->size;
+
+    idx = key->hash % table_size;
+    step = 0;
+
+    for (i = 0; i < table_size; ++i)
+    {
+	entry = &hash_table->entries[idx];
+
+	if (ENTRY_IS_FREE(*entry))
+	{
+	    return entry;
+	}
+	else if (ENTRY_IS_DEAD(*entry))
+	{
+	    if (key_is_unique) {
+		return entry;
+	    } else {
+		if (! first_available)
+		    first_available = entry;
+	    }
+	}
+	else /* ENTRY_IS_LIVE(*entry) */
+	{
+	    if (! key_is_unique)
+		if (hash_table->keys_equal (key, *entry))
+		    return entry;
+	}
+
+	if (step == 0) {
+	    step = key->hash % hash_table->arrangement->rehash;
+	    if (step == 0)
+		step = 1;
+	}
+
+	idx += step;
+	if (idx >= table_size)
+	    idx -= table_size;
+    }
+
+    /*
+     * The table should not have permitted you to get here if you were just
+     * looking for a free slot: there should have been room.
+     */
+    assert (key_is_unique == 0);
+
+    return first_available;
+}
+
+/**
+ * _cairo_hash_table_resize:
+ * @hash_table: a hash table
+ *
+ * Resize the hash table if the number of entries has gotten much
+ * bigger or smaller than the ideal number of entries for the current
+ * size.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if out of memory.
+ **/
+static cairo_status_t
+_cairo_hash_table_resize  (cairo_hash_table_t *hash_table)
+{
+    cairo_hash_table_t tmp;
+    cairo_hash_entry_t **entry;
+    unsigned long new_size, i;
+
+    /* This keeps the hash table between 25% and 50% full. */
+    unsigned long high = hash_table->arrangement->high_water_mark;
+    unsigned long low = high >> 2;
+
+    if (hash_table->live_entries >= low && hash_table->live_entries <= high)
+	return CAIRO_STATUS_SUCCESS;
+
+    tmp = *hash_table;
+
+    if (hash_table->live_entries > high)
+    {
+	tmp.arrangement = hash_table->arrangement + 1;
+	/* This code is being abused if we can't make a table big enough. */
+	assert (tmp.arrangement - hash_table_arrangements <
+		NUM_HASH_TABLE_ARRANGEMENTS);
+    }
+    else /* hash_table->live_entries < low */
+    {
+	/* Can't shrink if we're at the smallest size */
+	if (hash_table->arrangement == &hash_table_arrangements[0])
+	    return CAIRO_STATUS_SUCCESS;
+	tmp.arrangement = hash_table->arrangement - 1;
+    }
+
+    new_size = tmp.arrangement->size;
+    tmp.entries = calloc (new_size, sizeof (cairo_hash_entry_t*));
+    if (tmp.entries == NULL)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    for (i = 0; i < hash_table->arrangement->size; ++i) {
+	if (ENTRY_IS_LIVE (hash_table->entries[i])) {
+	    entry = _cairo_hash_table_lookup_internal (&tmp,
+						       hash_table->entries[i],
+						       TRUE);
+	    assert (ENTRY_IS_FREE(*entry));
+	    *entry = hash_table->entries[i];
+	}
+    }
+
+    free (hash_table->entries);
+    hash_table->entries = tmp.entries;
+    hash_table->arrangement = tmp.arrangement;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_hash_table_lookup:
+ * @hash_table: a hash table
+ * @key: the key of interest
+ * @entry_return: pointer for return value.
+ *
+ * Performs a lookup in @hash_table looking for an entry which has a
+ * key that matches @key, (as determined by the keys_equal() function
+ * passed to _cairo_hash_table_create).
+ *
+ * Return value: %TRUE if there is an entry in the hash table that
+ * matches the given key, (which will now be in *entry_return). %FALSE
+ * otherwise, (in which case *entry_return will be %NULL).
+ **/
+cairo_bool_t
+_cairo_hash_table_lookup (cairo_hash_table_t *hash_table,
+			  cairo_hash_entry_t *key,
+			  cairo_hash_entry_t **entry_return)
+{
+    cairo_hash_entry_t **entry;
+
+    /* See if we have an entry in the table already. */
+    entry = _cairo_hash_table_lookup_internal (hash_table, key, FALSE);
+    if (ENTRY_IS_LIVE(*entry)) {
+	*entry_return = *entry;
+	return TRUE;
+    }
+
+    *entry_return = NULL;
+    return FALSE;
+}
+
+/**
+ * _cairo_hash_table_random_entry:
+ * @hash_table: a hash table
+ * @predicate: a predicate function, or %NULL for any entry.
+ *
+ * Find a random entry in the hash table satisfying the given
+ * @predicate. A %NULL @predicate is taken as equivalent to a function
+ * which always returns %TRUE, (eg. any entry in the table will do).
+ *
+ * We use the same algorithm as the lookup algorithm to walk over the
+ * entries in the hash table in a pseudo-random order. Walking
+ * linearly would favor entries following gaps in the hash table. We
+ * could also call rand() repeatedly, which works well for almost-full
+ * tables, but degrades when the table is almost empty, or predicate
+ * returns %TRUE for most entries.
+ *
+ * Return value: a random live entry or %NULL if there are no entries
+ * that match the given predicate. In particular, if predicate is
+ * %NULL, a %NULL return value indicates that the table is empty.
+ **/
+void *
+_cairo_hash_table_random_entry (cairo_hash_table_t	   *hash_table,
+				cairo_hash_predicate_func_t predicate)
+{
+    cairo_hash_entry_t **entry;
+    unsigned long hash;
+    unsigned long table_size, i, idx, step;
+
+    table_size = hash_table->arrangement->size;
+
+    hash = rand ();
+    idx = hash % table_size;
+    step = 0;
+
+    for (i = 0; i < table_size; ++i)
+    {
+	entry = &hash_table->entries[idx];
+
+	if (ENTRY_IS_LIVE (*entry) &&
+	    (predicate == NULL || predicate (*entry)))
+	{
+	    return *entry;
+	}
+
+	if (step == 0) {
+	    step = hash % hash_table->arrangement->rehash;
+	    if (step == 0)
+		step = 1;
+	}
+
+	idx += step;
+	if (idx >= table_size)
+	    idx -= table_size;
+    }
+
+    return NULL;
+}
+
+/**
+ * _cairo_hash_table_insert:
+ * @hash_table: a hash table
+ * @key_and_value: an entry to be inserted
+ *
+ * Insert the entry #key_and_value into the hash table.
+ *
+ * WARNING: It is a fatal error if an entry exists in the hash table
+ * with a matching key, (this function will halt).
+ *
+ * WARNING: It is a fatal error to insert an element while
+ * an iterator is running
+ *
+ * Instead of using insert to replace an entry, consider just editing
+ * the entry obtained with _cairo_hash_table_lookup. Or if absolutely
+ * necessary, use _cairo_hash_table_remove first.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if insufficient memory is available.
+ **/
+cairo_status_t
+_cairo_hash_table_insert (cairo_hash_table_t *hash_table,
+			  cairo_hash_entry_t *key_and_value)
+{
+    cairo_status_t status;
+    cairo_hash_entry_t **entry;
+
+    /* Insert is illegal while an iterator is running. */
+    assert (hash_table->iterating == 0);
+
+    entry = _cairo_hash_table_lookup_internal (hash_table,
+					       key_and_value, FALSE);
+
+    if (ENTRY_IS_LIVE(*entry))
+    {
+	/* User is being bad, let's crash. */
+	ASSERT_NOT_REACHED;
+    }
+
+    *entry = key_and_value;
+    hash_table->live_entries++;
+
+    status = _cairo_hash_table_resize (hash_table);
+    if (status) {
+	/* abort the insert... */
+	*entry = DEAD_ENTRY;
+	hash_table->live_entries--;
+	return status;
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_hash_table_remove:
+ * @hash_table: a hash table
+ * @key: key of entry to be removed
+ *
+ * Remove an entry from the hash table which has a key that matches
+ * @key, if any (as determined by the keys_equal() function passed to
+ * _cairo_hash_table_create).
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if successful or
+ * %CAIRO_STATUS_NO_MEMORY if out of memory.
+ **/
+void
+_cairo_hash_table_remove (cairo_hash_table_t *hash_table,
+			  cairo_hash_entry_t *key)
+{
+    cairo_hash_entry_t **entry;
+
+    entry = _cairo_hash_table_lookup_internal (hash_table, key, FALSE);
+    if (! ENTRY_IS_LIVE(*entry))
+	return;
+
+    *entry = DEAD_ENTRY;
+    hash_table->live_entries--;
+
+    /* Check for table resize. Don't do this when iterating as this will
+     * reorder elements of the table and cause the iteration to potentially
+     * skip some elements. */
+    if (hash_table->iterating == 0) {
+	/* This call _can_ fail, but only in failing to allocate new
+	 * memory to shrink the hash table. It does leave the table in a
+	 * consistent state, and we've already succeeded in removing the
+	 * entry, so we don't examine the failure status of this call. */
+	_cairo_hash_table_resize (hash_table);
+    }
+}
+
+/**
+ * _cairo_hash_table_foreach:
+ * @hash_table: a hash table
+ * @hash_callback: function to be called for each live entry
+ * @closure: additional argument to be passed to @hash_callback
+ *
+ * Call @hash_callback for each live entry in the hash table, in a
+ * non-specified order.
+ *
+ * Entries in @hash_table may be removed by code executed from @hash_callback.
+ *
+ * Entries may not be inserted to @hash_table, nor may @hash_table
+ * be destroyed by code executed from @hash_callback. The relevant
+ * functions will halt in these cases.
+ **/
+void
+_cairo_hash_table_foreach (cairo_hash_table_t	      *hash_table,
+			   cairo_hash_callback_func_t  hash_callback,
+			   void			      *closure)
+{
+    unsigned long i;
+    cairo_hash_entry_t *entry;
+
+    if (hash_table == NULL)
+	return;
+
+    /* Mark the table for iteration */
+    ++hash_table->iterating;
+    for (i = 0; i < hash_table->arrangement->size; i++) {
+	entry = hash_table->entries[i];
+	if (ENTRY_IS_LIVE(entry))
+	    hash_callback (entry, closure);
+    }
+    /* If some elements were deleted during the iteration,
+     * the table may need resizing. Just do this every time
+     * as the check is inexpensive.
+     */
+    if (--hash_table->iterating == 0) {
+	/* Should we fail to shrink the hash table, it is left unaltered,
+	 * and we don't need to propagate the error status. */
+	_cairo_hash_table_resize (hash_table);
+    }
+}

uppdev/plugin/cairo/lib/cairo-hull.c

@@ -0,0 +1,222 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+typedef struct cairo_hull {
+    cairo_point_t point;
+    cairo_slope_t slope;
+    int discard;
+    int id;
+} cairo_hull_t;
+
+static void
+_cairo_hull_init (cairo_hull_t			*hull,
+	          cairo_pen_vertex_t		*vertices,
+		  int				 num_vertices)
+{
+    cairo_point_t *p, *extremum, tmp;
+    int i;
+
+    extremum = &vertices[0].point;
+    for (i = 1; i < num_vertices; i++) {
+	p = &vertices[i].point;
+	if (p->y < extremum->y || (p->y == extremum->y && p->x < extremum->x))
+	    extremum = p;
+    }
+    /* Put the extremal point at the beginning of the array */
+    tmp = *extremum;
+    *extremum = vertices[0].point;
+    vertices[0].point = tmp;
+
+    for (i = 0; i < num_vertices; i++) {
+	hull[i].point = vertices[i].point;
+	_cairo_slope_init (&hull[i].slope, &hull[0].point, &hull[i].point);
+
+        /* give each point a unique id for later comparison */
+        hull[i].id = i;
+
+        /* Don't discard by default */
+        hull[i].discard = 0;
+
+	/* Discard all points coincident with the extremal point */
+	if (i != 0 && hull[i].slope.dx == 0 && hull[i].slope.dy == 0)
+	    hull[i].discard = 1;
+    }
+}
+
+static inline cairo_int64_t
+_slope_length (cairo_slope_t *slope)
+{
+    return _cairo_int64_add (_cairo_int32x32_64_mul (slope->dx, slope->dx),
+			     _cairo_int32x32_64_mul (slope->dy, slope->dy));
+}
+
+static int
+_cairo_hull_vertex_compare (const void *av, const void *bv)
+{
+    cairo_hull_t *a = (cairo_hull_t *) av;
+    cairo_hull_t *b = (cairo_hull_t *) bv;
+    int ret;
+
+    ret = _cairo_slope_compare (&a->slope, &b->slope);
+
+    /*
+     * In the case of two vertices with identical slope from the
+     * extremal point discard the nearer point.
+     */
+    if (ret == 0) {
+	int cmp;
+
+	cmp = _cairo_int64_cmp (_slope_length (&a->slope),
+				_slope_length (&b->slope));
+
+	/*
+	 * Use the points' ids to ensure a well-defined ordering,
+	 * and avoid setting discard on both points.
+	 */
+	if (cmp < 0 || (cmp == 0 && a->id < b->id)) {
+	    a->discard = 1;
+	    ret = -1;
+	} else {
+	    b->discard = 1;
+	    ret = 1;
+	}
+    }
+
+    return ret;
+}
+
+static int
+_cairo_hull_prev_valid (cairo_hull_t *hull, int num_hull, int index)
+{
+    /* hull[0] is always valid, and we never need to wraparound, (if
+     * we are passed an index of 0 here, then the calling loop is just
+     * about to terminate). */
+    if (index == 0)
+	return 0;
+
+    do {
+	index--;
+    } while (hull[index].discard);
+
+    return index;
+}
+
+static int
+_cairo_hull_next_valid (cairo_hull_t *hull, int num_hull, int index)
+{
+    do {
+	index = (index + 1) % num_hull;
+    } while (hull[index].discard);
+
+    return index;
+}
+
+static void
+_cairo_hull_eliminate_concave (cairo_hull_t *hull, int num_hull)
+{
+    int i, j, k;
+    cairo_slope_t slope_ij, slope_jk;
+
+    i = 0;
+    j = _cairo_hull_next_valid (hull, num_hull, i);
+    k = _cairo_hull_next_valid (hull, num_hull, j);
+
+    do {
+	_cairo_slope_init (&slope_ij, &hull[i].point, &hull[j].point);
+	_cairo_slope_init (&slope_jk, &hull[j].point, &hull[k].point);
+
+	/* Is the angle formed by ij and jk concave? */
+	if (_cairo_slope_compare (&slope_ij, &slope_jk) >= 0) {
+	    if (i == k)
+		return;
+	    hull[j].discard = 1;
+	    j = i;
+	    i = _cairo_hull_prev_valid (hull, num_hull, j);
+	} else {
+	    i = j;
+	    j = k;
+	    k = _cairo_hull_next_valid (hull, num_hull, j);
+	}
+    } while (j != 0);
+}
+
+static void
+_cairo_hull_to_pen (cairo_hull_t *hull, cairo_pen_vertex_t *vertices, int *num_vertices)
+{
+    int i, j = 0;
+
+    for (i = 0; i < *num_vertices; i++) {
+	if (hull[i].discard)
+	    continue;
+	vertices[j++].point = hull[i].point;
+    }
+
+    *num_vertices = j;
+}
+
+/* Given a set of vertices, compute the convex hull using the Graham
+   scan algorithm. */
+cairo_status_t
+_cairo_hull_compute (cairo_pen_vertex_t *vertices, int *num_vertices)
+{
+    cairo_hull_t hull_stack[CAIRO_STACK_ARRAY_LENGTH (cairo_hull_t)];
+    cairo_hull_t *hull;
+    int num_hull = *num_vertices;
+
+    if (num_hull > ARRAY_LENGTH (hull_stack)) {
+	hull = _cairo_malloc_ab (num_hull, sizeof (cairo_hull_t));
+	if (hull == NULL)
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+    } else {
+	hull = hull_stack;
+    }
+
+    _cairo_hull_init (hull, vertices, num_hull);
+
+    qsort (hull + 1, num_hull - 1,
+	   sizeof (cairo_hull_t), _cairo_hull_vertex_compare);
+
+    _cairo_hull_eliminate_concave (hull, num_hull);
+
+    _cairo_hull_to_pen (hull, vertices, num_vertices);
+
+    if (hull != hull_stack)
+	free (hull);
+
+    return CAIRO_STATUS_SUCCESS;
+}

uppdev/plugin/cairo/lib/cairo-lzw.c

@@ -0,0 +1,403 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+typedef struct _lzw_buf {
+    cairo_status_t status;
+
+    unsigned char *data;
+    int data_size;
+    int num_data;
+    uint32_t pending;
+    unsigned int pending_bits;
+} lzw_buf_t;
+
+/* An lzw_buf_t is a simple, growable chunk of memory for holding
+ * variable-size objects of up to 16 bits each.
+ *
+ * Initialize an lzw_buf_t to the given size in bytes.
+ *
+ * To store objects into the lzw_buf_t, call _lzw_buf_store_bits and
+ * when finished, call _lzw_buf_store_pending, (which flushes out the
+ * last few bits that hadn't yet made a complete byte yet).
+ *
+ * Instead of returning failure from any functions, lzw_buf_t provides
+ * a status value that the caller can query, (and should query at
+ * least once when done with the object). The status value will be
+ * either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY;
+ */
+static void
+_lzw_buf_init (lzw_buf_t *buf, int size)
+{
+    if (size == 0)
+	size = 16;
+
+    buf->status = CAIRO_STATUS_SUCCESS;
+    buf->data_size = size;
+    buf->num_data = 0;
+    buf->pending = 0;
+    buf->pending_bits = 0;
+
+    buf->data = malloc (size);
+    if (buf->data == NULL) {
+	buf->data_size = 0;
+	buf->status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	return;
+    }
+}
+
+/* Increase the buffer size by doubling.
+ *
+ * Returns %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY
+ */
+static cairo_status_t
+_lzw_buf_grow (lzw_buf_t *buf)
+{
+    int new_size = buf->data_size * 2;
+    unsigned char *new_data;
+
+    if (buf->status)
+	return buf->status;
+
+    new_data = NULL;
+    /* check for integer overflow */
+    if (new_size / 2 == buf->data_size)
+	new_data = realloc (buf->data, new_size);
+
+    if (new_data == NULL) {
+	free (buf->data);
+	buf->data_size = 0;
+	buf->status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	return buf->status;
+    }
+
+    buf->data = new_data;
+    buf->data_size = new_size;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/* Store the lowest num_bits bits of values into buf.
+ *
+ * Note: The bits of value above size_in_bits must be 0, (so don't lie
+ * about the size).
+ *
+ * See also _lzw_buf_store_pending which must be called after the last
+ * call to _lzw_buf_store_bits.
+ *
+ * Sets buf->status to either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY.
+ */
+static void
+_lzw_buf_store_bits (lzw_buf_t *buf, uint16_t value, int num_bits)
+{
+    cairo_status_t status;
+
+    assert (value <= (1 << num_bits) - 1);
+
+    if (buf->status)
+	return;
+
+    buf->pending = (buf->pending << num_bits) | value;
+    buf->pending_bits += num_bits;
+
+    while (buf->pending_bits >= 8) {
+	if (buf->num_data >= buf->data_size) {
+	    status = _lzw_buf_grow (buf);
+	    if (status)
+		return;
+	}
+	buf->data[buf->num_data++] = buf->pending >> (buf->pending_bits - 8);
+	buf->pending_bits -= 8;
+    }
+}
+
+/* Store the last remaining pending bits into the buffer.
+ *
+ * Note: This function must be called after the last call to
+ * _lzw_buf_store_bits.
+ *
+ * Sets buf->status to either %CAIRO_STATUS_SUCCESS or %CAIRO_STATUS_NO_MEMORY.
+ */
+static void
+_lzw_buf_store_pending  (lzw_buf_t *buf)
+{
+    cairo_status_t status;
+
+    if (buf->status)
+	return;
+
+    if (buf->pending_bits == 0)
+	return;
+
+    assert (buf->pending_bits < 8);
+
+    if (buf->num_data >= buf->data_size) {
+	status = _lzw_buf_grow (buf);
+	if (status)
+	    return;
+    }
+
+    buf->data[buf->num_data++] = buf->pending << (8 - buf->pending_bits);
+    buf->pending_bits = 0;
+}
+
+/* LZW defines a few magic code values */
+#define LZW_CODE_CLEAR_TABLE	256
+#define LZW_CODE_EOD		257
+#define LZW_CODE_FIRST		258
+
+/* We pack three separate values into a symbol as follows:
+ *
+ * 12 bits (31 down to 20):	CODE: code value used to represent this symbol
+ * 12 bits (19 down to  8):	PREV: previous code value in chain
+ *  8 bits ( 7 down to  0):	NEXT: next byte value in chain
+ */
+typedef uint32_t lzw_symbol_t;
+
+#define LZW_SYMBOL_SET(sym, prev, next)			((sym) = ((prev) << 8)|(next))
+#define LZW_SYMBOL_SET_CODE(sym, code, prev, next)	((sym) = ((code << 20)|(prev) << 8)|(next))
+#define LZW_SYMBOL_GET_CODE(sym)			(((sym) >> 20))
+#define LZW_SYMBOL_GET_PREV(sym)			(((sym) >>  8) & 0x7ff)
+#define LZW_SYMBOL_GET_BYTE(sym)			(((sym) >>  0) & 0x0ff)
+
+/* The PREV+NEXT fields can be seen as the key used to fetch values
+ * from the hash table, while the code is the value fetched.
+ */
+#define LZW_SYMBOL_KEY_MASK	0x000fffff
+
+/* Since code values are only stored starting with 258 we can safely
+ * use a zero value to represent free slots in the hash table. */
+#define LZW_SYMBOL_FREE		0x00000000
+
+/* These really aren't very free for modifying. First, the PostScript
+ * specification sets the 9-12 bit range. Second, the encoding of
+ * lzw_symbol_t above also relies on 2 of LZW_BITS_MAX plus one byte
+ * fitting within 32 bits.
+ *
+ * But other than that, the LZW compression scheme could function with
+ * more bits per code.
+ */
+#define LZW_BITS_MIN		9
+#define LZW_BITS_MAX		12
+#define LZW_BITS_BOUNDARY(bits)	((1<<(bits))-1)
+#define LZW_MAX_SYMBOLS		(1<<LZW_BITS_MAX)
+
+#define LZW_SYMBOL_TABLE_SIZE	9013
+#define LZW_SYMBOL_MOD1		LZW_SYMBOL_TABLE_SIZE
+#define LZW_SYMBOL_MOD2		9011
+
+typedef struct _lzw_symbol_table {
+    lzw_symbol_t table[LZW_SYMBOL_TABLE_SIZE];
+} lzw_symbol_table_t;
+
+/* Initialize the hash table to entirely empty */
+static void
+_lzw_symbol_table_init (lzw_symbol_table_t *table)
+{
+    memset (table->table, 0, LZW_SYMBOL_TABLE_SIZE * sizeof (lzw_symbol_t));
+}
+
+/* Lookup a symbol in the symbol table. The PREV and NEXT fields of
+ * symbol form the key for the lookup.
+ *
+ * If successful, then this function returns %TRUE and slot_ret will be
+ * left pointing at the result that will have the CODE field of
+ * interest.
+ *
+ * If the lookup fails, then this function returns %FALSE and slot_ret
+ * will be pointing at the location in the table to which a new CODE
+ * value should be stored along with PREV and NEXT.
+ */
+static cairo_bool_t
+_lzw_symbol_table_lookup (lzw_symbol_table_t	 *table,
+			  lzw_symbol_t		  symbol,
+			  lzw_symbol_t		**slot_ret)
+{
+    /* The algorithm here is identical to that in cairo-hash.c. We
+     * copy it here to allow for a rather more efficient
+     * implementation due to several circumstances that do not apply
+     * to the more general case:
+     *
+     * 1) We have a known bound on the total number of symbols, so we
+     *    have a fixed-size table without any copying when growing
+     *
+     * 2) We never delete any entries, so we don't need to
+     *    support/check for DEAD entries during lookup.
+     *
+     * 3) The object fits in 32 bits so we store each object in its
+     *    entirety within the table rather than storing objects
+     *    externally and putting pointers in the table, (which here
+     *    would just double the storage requirements and have negative
+     *    impacts on memory locality).
+     */
+    int i, idx, step, hash = symbol & LZW_SYMBOL_KEY_MASK;
+    lzw_symbol_t candidate;
+
+    idx = hash % LZW_SYMBOL_MOD1;
+    step = 0;
+
+    *slot_ret = NULL;
+    for (i = 0; i < LZW_SYMBOL_TABLE_SIZE; i++)
+    {
+	candidate = table->table[idx];
+	if (candidate == LZW_SYMBOL_FREE)
+	{
+	    *slot_ret = &table->table[idx];
+	    return FALSE;
+	}
+	else /* candidate is LIVE */
+	{
+	    if ((candidate & LZW_SYMBOL_KEY_MASK) ==
+		(symbol & LZW_SYMBOL_KEY_MASK))
+	    {
+		*slot_ret = &table->table[idx];
+		return TRUE;
+	    }
+	}
+
+	if (step == 0) {
+	    step = hash % LZW_SYMBOL_MOD2;
+	    if (step == 0)
+		step = 1;
+	}
+
+	idx += step;
+	if (idx >= LZW_SYMBOL_TABLE_SIZE)
+	    idx -= LZW_SYMBOL_TABLE_SIZE;
+    }
+
+    return FALSE;
+}
+
+/* Compress a bytestream using the LZW algorithm.
+ *
+ * This is an original implementation based on reading the
+ * specification of the LZWDecode filter in the PostScript Language
+ * Reference. The free parameters in the LZW algorithm are set to the
+ * values mandated by PostScript, (symbols encoded with widths from 9
+ * to 12 bits).
+ *
+ * This function returns a pointer to a newly allocated buffer holding
+ * the compressed data, or %NULL if an out-of-memory situation
+ * occurs.
+ *
+ * Notice that any one of the _lzw_buf functions called here could
+ * trigger an out-of-memory condition. But lzw_buf_t uses cairo's
+ * shutdown-on-error idiom, so it's safe to continue to call into
+ * lzw_buf without having to check for errors, (until a final check at
+ * the end).
+ */
+unsigned char *
+_cairo_lzw_compress (unsigned char *data, unsigned long *size_in_out)
+{
+    int bytes_remaining = *size_in_out;
+    lzw_buf_t buf;
+    lzw_symbol_table_t table;
+    lzw_symbol_t symbol, *slot = NULL; /* just to squelch a warning */
+    int code_next = LZW_CODE_FIRST;
+    int code_bits = LZW_BITS_MIN;
+    int prev, next = 0; /* just to squelch a warning */
+
+    if (*size_in_out == 0)
+	return NULL;
+
+    _lzw_buf_init (&buf, *size_in_out);
+
+    _lzw_symbol_table_init (&table);
+
+    /* The LZW header is a clear table code. */
+    _lzw_buf_store_bits (&buf, LZW_CODE_CLEAR_TABLE, code_bits);
+
+    while (1) {
+
+	/* Find the longest existing code in the symbol table that
+	 * matches the current input, if any. */
+	prev = *data++;
+	bytes_remaining--;
+	if (bytes_remaining) {
+	    do
+	    {
+		next = *data++;
+		bytes_remaining--;
+		LZW_SYMBOL_SET (symbol, prev, next);
+		if (_lzw_symbol_table_lookup (&table, symbol, &slot))
+		    prev = LZW_SYMBOL_GET_CODE (*slot);
+	    } while (bytes_remaining && *slot != LZW_SYMBOL_FREE);
+	    if (*slot == LZW_SYMBOL_FREE) {
+		data--;
+		bytes_remaining++;
+	    }
+	}
+
+	/* Write the code into the output. This is either a byte read
+	 * directly from the input, or a code from the last successful
+	 * lookup. */
+	_lzw_buf_store_bits (&buf, prev, code_bits);
+
+	if (bytes_remaining == 0)
+	    break;
+
+	LZW_SYMBOL_SET_CODE (*slot, code_next++, prev, next);
+
+	if (code_next > LZW_BITS_BOUNDARY(code_bits))
+	{
+	    code_bits++;
+	    if (code_bits > LZW_BITS_MAX) {
+		_lzw_symbol_table_init (&table);
+		_lzw_buf_store_bits (&buf, LZW_CODE_CLEAR_TABLE, code_bits - 1);
+		code_bits = LZW_BITS_MIN;
+		code_next = LZW_CODE_FIRST;
+	    }
+	}
+    }
+
+    /* The LZW footer is an end-of-data code. */
+    _lzw_buf_store_bits (&buf, LZW_CODE_EOD, code_bits);
+
+    _lzw_buf_store_pending (&buf);
+
+    /* See if we ever ran out of memory while writing to buf. */
+    if (buf.status == CAIRO_STATUS_NO_MEMORY) {
+	*size_in_out = 0;
+	return NULL;
+    }
+
+    assert (buf.status == CAIRO_STATUS_SUCCESS);
+
+    *size_in_out = buf.num_data;
+    return buf.data;
+}

uppdev/plugin/cairo/lib/cairo-malloc-private.h

@@ -0,0 +1,141 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation
+ *
+ * Contributor(s):
+ *	Vladimir Vukicevic <vladimir@pobox.com>
+ */
+
+#ifndef CAIRO_MALLOC_PRIVATE_H
+#define CAIRO_MALLOC_PRIVATE_H
+
+#include "cairo-wideint-private.h"
+
+/**
+ * _cairo_malloc:
+ * @size: size in bytes
+ *
+ * Allocate @size memory using malloc().
+ * The memory should be freed using free().
+ * malloc is skipped, if 0 bytes are requested, and %NULL will be returned.
+ *
+ * Return value: A pointer to the newly allocated memory, or %NULL in
+ * case of malloc() failure or size is 0.
+ */
+
+#define _cairo_malloc(size) \
+   ((size) ? malloc((unsigned) (size)) : NULL)
+
+/**
+ * _cairo_malloc_ab:
+ * @n: number of elements to allocate
+ * @size: size of each element
+ *
+ * Allocates @n*@size memory using _cairo_malloc(), taking care to not
+ * overflow when doing the multiplication.  Behaves much like
+ * calloc(), except that the returned memory is not set to zero.
+ * The memory should be freed using free().
+ *
+ * @size should be a constant so that the compiler can optimize
+ * out a constant division.
+ *
+ * Return value: A pointer to the newly allocated memory, or %NULL in
+ * case of malloc() failure or overflow.
+ */
+
+#define _cairo_malloc_ab(a, size) \
+  ((size) && (unsigned) (a) >= INT32_MAX / (unsigned) (size) ? NULL : \
+   _cairo_malloc((unsigned) (a) * (unsigned) (size)))
+
+/**
+ * _cairo_realloc_ab:
+ * @ptr: original pointer to block of memory to be resized
+ * @n: number of elements to allocate
+ * @size: size of each element
+ *
+ * Reallocates @ptr a block of @n*@size memory using realloc(), taking
+ * care to not overflow when doing the multiplication.  The memory
+ * should be freed using free().
+ *
+ * @size should be a constant so that the compiler can optimize
+ * out a constant division.
+ *
+ * Return value: A pointer to the newly allocated memory, or %NULL in
+ * case of realloc() failure or overflow (whereupon the original block
+ * of memory * is left untouched).
+ */
+
+#define _cairo_realloc_ab(ptr, a, size) \
+  ((size) && (unsigned) (a) >= INT32_MAX / (unsigned) (size) ? NULL : \
+   realloc(ptr, (unsigned) (a) * (unsigned) (size)))
+
+/**
+ * _cairo_malloc_abc:
+ * @n: first factor of number of elements to allocate
+ * @b: second factor of number of elements to allocate
+ * @size: size of each element
+ *
+ * Allocates @n*@b*@size memory using _cairo_malloc(), taking care to not
+ * overflow when doing the multiplication.  Behaves like
+ * _cairo_malloc_ab().  The memory should be freed using free().
+ *
+ * @size should be a constant so that the compiler can optimize
+ * out a constant division.
+ *
+ * Return value: A pointer to the newly allocated memory, or %NULL in
+ * case of malloc() failure or overflow.
+ */
+
+#define _cairo_malloc_abc(a, b, size) \
+  ((b) && (unsigned) (a) >= INT32_MAX / (unsigned) (b) ? NULL : \
+   (size) && (unsigned) ((a)*(b)) >= INT32_MAX / (unsigned) (size) ? NULL : \
+   _cairo_malloc((unsigned) (a) * (unsigned) (b) * (unsigned) (size)))
+
+/**
+ * _cairo_malloc_ab_plus_c:
+ * @n: number of elements to allocate
+ * @size: size of each element
+ * @k: additional size to allocate
+ *
+ * Allocates @n*@ksize+@k memory using _cairo_malloc(), taking care to not
+ * overflow when doing the arithmetic.  Behaves like
+ * _cairo_malloc_ab().  The memory should be freed using free().
+ *
+ * Return value: A pointer to the newly allocated memory, or %NULL in
+ * case of malloc() failure or overflow.
+ */
+
+#define _cairo_malloc_ab_plus_c(n, size, k) \
+  ((size) && (unsigned) (n) >= INT32_MAX / (unsigned) (size) ? NULL : \
+   (unsigned) (k) >= INT32_MAX - (unsigned) (n) * (unsigned) (size) ? NULL : \
+   _cairo_malloc((unsigned) (n) * (unsigned) (size) + (unsigned) (k)))
+
+#endif /* CAIRO_MALLOC_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-matrix.c

@@ -0,0 +1,863 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#define _GNU_SOURCE
+
+#include "cairoint.h"
+
+#if _XOPEN_SOURCE >= 600 || defined (_ISOC99_SOURCE)
+#define ISFINITE(x) isfinite (x)
+#else
+#define ISFINITE(x) ((x) * (x) >= 0.) /* check for NaNs */
+#endif
+
+static void
+_cairo_matrix_scalar_multiply (cairo_matrix_t *matrix, double scalar);
+
+static void
+_cairo_matrix_compute_adjoint (cairo_matrix_t *matrix);
+
+/**
+ * cairo_matrix_init_identity:
+ * @matrix: a #cairo_matrix_t
+ *
+ * Modifies @matrix to be an identity transformation.
+ **/
+void
+cairo_matrix_init_identity (cairo_matrix_t *matrix)
+{
+    cairo_matrix_init (matrix,
+		       1, 0,
+		       0, 1,
+		       0, 0);
+}
+slim_hidden_def(cairo_matrix_init_identity);
+
+/**
+ * cairo_matrix_init:
+ * @matrix: a #cairo_matrix_t
+ * @xx: xx component of the affine transformation
+ * @yx: yx component of the affine transformation
+ * @xy: xy component of the affine transformation
+ * @yy: yy component of the affine transformation
+ * @x0: X translation component of the affine transformation
+ * @y0: Y translation component of the affine transformation
+ *
+ * Sets @matrix to be the affine transformation given by
+ * @xx, @yx, @xy, @yy, @x0, @y0. The transformation is given
+ * by:
+ * <programlisting>
+ *  x_new = xx * x + xy * y + x0;
+ *  y_new = yx * x + yy * y + y0;
+ * </programlisting>
+ **/
+void
+cairo_matrix_init (cairo_matrix_t *matrix,
+		   double xx, double yx,
+
+		   double xy, double yy,
+		   double x0, double y0)
+{
+    matrix->xx = xx; matrix->yx = yx;
+    matrix->xy = xy; matrix->yy = yy;
+    matrix->x0 = x0; matrix->y0 = y0;
+}
+slim_hidden_def(cairo_matrix_init);
+
+/**
+ * _cairo_matrix_get_affine:
+ * @matrix: a #cairo_matrix_t
+ * @xx: location to store xx component of matrix
+ * @yx: location to store yx component of matrix
+ * @xy: location to store xy component of matrix
+ * @yy: location to store yy component of matrix
+ * @x0: location to store x0 (X-translation component) of matrix, or %NULL
+ * @y0: location to store y0 (Y-translation component) of matrix, or %NULL
+ *
+ * Gets the matrix values for the affine transformation that @matrix represents.
+ * See cairo_matrix_init().
+ *
+ *
+ * This function is a leftover from the old public API, but is still
+ * mildly useful as an internal means for getting at the matrix
+ * members in a positional way. For example, when reassigning to some
+ * external matrix type, or when renaming members to more meaningful
+ * names (such as a,b,c,d,e,f) for particular manipulations.
+ **/
+void
+_cairo_matrix_get_affine (const cairo_matrix_t *matrix,
+			  double *xx, double *yx,
+			  double *xy, double *yy,
+			  double *x0, double *y0)
+{
+    *xx  = matrix->xx;
+    *yx  = matrix->yx;
+
+    *xy  = matrix->xy;
+    *yy  = matrix->yy;
+
+    if (x0)
+	*x0 = matrix->x0;
+    if (y0)
+	*y0 = matrix->y0;
+}
+
+/**
+ * cairo_matrix_init_translate:
+ * @matrix: a #cairo_matrix_t
+ * @tx: amount to translate in the X direction
+ * @ty: amount to translate in the Y direction
+ *
+ * Initializes @matrix to a transformation that translates by @tx and
+ * @ty in the X and Y dimensions, respectively.
+ **/
+void
+cairo_matrix_init_translate (cairo_matrix_t *matrix,
+			     double tx, double ty)
+{
+    cairo_matrix_init (matrix,
+		       1, 0,
+		       0, 1,
+		       tx, ty);
+}
+slim_hidden_def(cairo_matrix_init_translate);
+
+/**
+ * cairo_matrix_translate:
+ * @matrix: a #cairo_matrix_t
+ * @tx: amount to translate in the X direction
+ * @ty: amount to translate in the Y direction
+ *
+ * Applies a translation by @tx, @ty to the transformation in
+ * @matrix. The effect of the new transformation is to first translate
+ * the coordinates by @tx and @ty, then apply the original transformation
+ * to the coordinates.
+ **/
+void
+cairo_matrix_translate (cairo_matrix_t *matrix, double tx, double ty)
+{
+    cairo_matrix_t tmp;
+
+    cairo_matrix_init_translate (&tmp, tx, ty);
+
+    cairo_matrix_multiply (matrix, &tmp, matrix);
+}
+slim_hidden_def (cairo_matrix_translate);
+
+/**
+ * cairo_matrix_init_scale:
+ * @matrix: a #cairo_matrix_t
+ * @sx: scale factor in the X direction
+ * @sy: scale factor in the Y direction
+ *
+ * Initializes @matrix to a transformation that scales by @sx and @sy
+ * in the X and Y dimensions, respectively.
+ **/
+void
+cairo_matrix_init_scale (cairo_matrix_t *matrix,
+			 double sx, double sy)
+{
+    cairo_matrix_init (matrix,
+		       sx,  0,
+		       0, sy,
+		       0, 0);
+}
+slim_hidden_def(cairo_matrix_init_scale);
+
+/**
+ * cairo_matrix_scale:
+ * @matrix: a #cairo_matrix_t
+ * @sx: scale factor in the X direction
+ * @sy: scale factor in the Y direction
+ *
+ * Applies scaling by @sx, @sy to the transformation in @matrix. The
+ * effect of the new transformation is to first scale the coordinates
+ * by @sx and @sy, then apply the original transformation to the coordinates.
+ **/
+void
+cairo_matrix_scale (cairo_matrix_t *matrix, double sx, double sy)
+{
+    cairo_matrix_t tmp;
+
+    cairo_matrix_init_scale (&tmp, sx, sy);
+
+    cairo_matrix_multiply (matrix, &tmp, matrix);
+}
+slim_hidden_def(cairo_matrix_scale);
+
+/**
+ * cairo_matrix_init_rotate:
+ * @matrix: a #cairo_matrix_t
+ * @radians: angle of rotation, in radians. The direction of rotation
+ * is defined such that positive angles rotate in the direction from
+ * the positive X axis toward the positive Y axis. With the default
+ * axis orientation of cairo, positive angles rotate in a clockwise
+ * direction.
+ *
+ * Initialized @matrix to a transformation that rotates by @radians.
+ **/
+void
+cairo_matrix_init_rotate (cairo_matrix_t *matrix,
+			  double radians)
+{
+    double  s;
+    double  c;
+
+    s = sin (radians);
+    c = cos (radians);
+
+    cairo_matrix_init (matrix,
+		       c, s,
+		       -s, c,
+		       0, 0);
+}
+slim_hidden_def(cairo_matrix_init_rotate);
+
+/**
+ * cairo_matrix_rotate:
+ * @matrix: a #cairo_matrix_t
+ * @radians: angle of rotation, in radians. The direction of rotation
+ * is defined such that positive angles rotate in the direction from
+ * the positive X axis toward the positive Y axis. With the default
+ * axis orientation of cairo, positive angles rotate in a clockwise
+ * direction.
+ *
+ * Applies rotation by @radians to the transformation in
+ * @matrix. The effect of the new transformation is to first rotate the
+ * coordinates by @radians, then apply the original transformation
+ * to the coordinates.
+ **/
+void
+cairo_matrix_rotate (cairo_matrix_t *matrix, double radians)
+{
+    cairo_matrix_t tmp;
+
+    cairo_matrix_init_rotate (&tmp, radians);
+
+    cairo_matrix_multiply (matrix, &tmp, matrix);
+}
+
+/**
+ * cairo_matrix_multiply:
+ * @result: a #cairo_matrix_t in which to store the result
+ * @a: a #cairo_matrix_t
+ * @b: a #cairo_matrix_t
+ *
+ * Multiplies the affine transformations in @a and @b together
+ * and stores the result in @result. The effect of the resulting
+ * transformation is to first apply the transformation in @a to the
+ * coordinates and then apply the transformation in @b to the
+ * coordinates.
+ *
+ * It is allowable for @result to be identical to either @a or @b.
+ **/
+/*
+ * XXX: The ordering of the arguments to this function corresponds
+ *      to [row_vector]*A*B. If we want to use column vectors instead,
+ *      then we need to switch the two arguments and fix up all
+ *      uses.
+ */
+void
+cairo_matrix_multiply (cairo_matrix_t *result, const cairo_matrix_t *a, const cairo_matrix_t *b)
+{
+    cairo_matrix_t r;
+
+    r.xx = a->xx * b->xx + a->yx * b->xy;
+    r.yx = a->xx * b->yx + a->yx * b->yy;
+
+    r.xy = a->xy * b->xx + a->yy * b->xy;
+    r.yy = a->xy * b->yx + a->yy * b->yy;
+
+    r.x0 = a->x0 * b->xx + a->y0 * b->xy + b->x0;
+    r.y0 = a->x0 * b->yx + a->y0 * b->yy + b->y0;
+
+    *result = r;
+}
+slim_hidden_def(cairo_matrix_multiply);
+
+/**
+ * cairo_matrix_transform_distance:
+ * @matrix: a #cairo_matrix_t
+ * @dx: X component of a distance vector. An in/out parameter
+ * @dy: Y component of a distance vector. An in/out parameter
+ *
+ * Transforms the distance vector (@dx,@dy) by @matrix. This is
+ * similar to cairo_matrix_transform_point() except that the translation
+ * components of the transformation are ignored. The calculation of
+ * the returned vector is as follows:
+ *
+ * <programlisting>
+ * dx2 = dx1 * a + dy1 * c;
+ * dy2 = dx1 * b + dy1 * d;
+ * </programlisting>
+ *
+ * Affine transformations are position invariant, so the same vector
+ * always transforms to the same vector. If (@x1,@y1) transforms
+ * to (@x2,@y2) then (@x1+@dx1,@y1+@dy1) will transform to
+ * (@x1+@dx2,@y1+@dy2) for all values of @x1 and @x2.
+ **/
+void
+cairo_matrix_transform_distance (const cairo_matrix_t *matrix, double *dx, double *dy)
+{
+    double new_x, new_y;
+
+    new_x = (matrix->xx * *dx + matrix->xy * *dy);
+    new_y = (matrix->yx * *dx + matrix->yy * *dy);
+
+    *dx = new_x;
+    *dy = new_y;
+}
+slim_hidden_def(cairo_matrix_transform_distance);
+
+/**
+ * cairo_matrix_transform_point:
+ * @matrix: a #cairo_matrix_t
+ * @x: X position. An in/out parameter
+ * @y: Y position. An in/out parameter
+ *
+ * Transforms the point (@x, @y) by @matrix.
+ **/
+void
+cairo_matrix_transform_point (const cairo_matrix_t *matrix, double *x, double *y)
+{
+    cairo_matrix_transform_distance (matrix, x, y);
+
+    *x += matrix->x0;
+    *y += matrix->y0;
+}
+slim_hidden_def(cairo_matrix_transform_point);
+
+void
+_cairo_matrix_transform_bounding_box (const cairo_matrix_t *matrix,
+				      double *x1, double *y1,
+				      double *x2, double *y2,
+				      cairo_bool_t *is_tight)
+{
+    int i;
+    double quad_x[4], quad_y[4];
+    double min_x, max_x;
+    double min_y, max_y;
+
+    quad_x[0] = *x1;
+    quad_y[0] = *y1;
+    cairo_matrix_transform_point (matrix, &quad_x[0], &quad_y[0]);
+
+    quad_x[1] = *x2;
+    quad_y[1] = *y1;
+    cairo_matrix_transform_point (matrix, &quad_x[1], &quad_y[1]);
+
+    quad_x[2] = *x1;
+    quad_y[2] = *y2;
+    cairo_matrix_transform_point (matrix, &quad_x[2], &quad_y[2]);
+
+    quad_x[3] = *x2;
+    quad_y[3] = *y2;
+    cairo_matrix_transform_point (matrix, &quad_x[3], &quad_y[3]);
+
+    min_x = max_x = quad_x[0];
+    min_y = max_y = quad_y[0];
+
+    for (i=1; i < 4; i++) {
+	if (quad_x[i] < min_x)
+	    min_x = quad_x[i];
+	if (quad_x[i] > max_x)
+	    max_x = quad_x[i];
+
+	if (quad_y[i] < min_y)
+	    min_y = quad_y[i];
+	if (quad_y[i] > max_y)
+	    max_y = quad_y[i];
+    }
+
+    *x1 = min_x;
+    *y1 = min_y;
+    *x2 = max_x;
+    *y2 = max_y;
+    
+    if (is_tight) {
+        /* it's tight if and only if the four corner points form an axis-aligned
+           rectangle.
+           And that's true if and only if we can derive corners 0 and 3 from
+           corners 1 and 2 in one of two straightforward ways...
+           We could use a tolerance here but for now we'll fall back to FALSE in the case
+           of floating point error.
+        */
+        *is_tight =
+            (quad_x[1] == quad_x[0] && quad_y[1] == quad_y[3] &&
+             quad_x[2] == quad_x[3] && quad_y[2] == quad_y[0]) ||
+            (quad_x[1] == quad_x[3] && quad_y[1] == quad_y[0] &&
+             quad_x[2] == quad_x[0] && quad_y[2] == quad_y[3]);
+    }
+}
+
+cairo_private void
+_cairo_matrix_transform_bounding_box_fixed (const cairo_matrix_t *matrix,
+					    cairo_box_t          *bbox,
+					    cairo_bool_t *is_tight)
+{
+    double x1, y1, x2, y2;
+
+    _cairo_box_to_doubles (bbox, &x1, &y1, &x2, &y2);
+    _cairo_matrix_transform_bounding_box (matrix, &x1, &y1, &x2, &y2, is_tight);
+    _cairo_box_from_doubles (bbox, &x1, &y1, &x2, &y2);
+}
+
+static void
+_cairo_matrix_scalar_multiply (cairo_matrix_t *matrix, double scalar)
+{
+    matrix->xx *= scalar;
+    matrix->yx *= scalar;
+
+    matrix->xy *= scalar;
+    matrix->yy *= scalar;
+
+    matrix->x0 *= scalar;
+    matrix->y0 *= scalar;
+}
+
+/* This function isn't a correct adjoint in that the implicit 1 in the
+   homogeneous result should actually be ad-bc instead. But, since this
+   adjoint is only used in the computation of the inverse, which
+   divides by det (A)=ad-bc anyway, everything works out in the end. */
+static void
+_cairo_matrix_compute_adjoint (cairo_matrix_t *matrix)
+{
+    /* adj (A) = transpose (C:cofactor (A,i,j)) */
+    double a, b, c, d, tx, ty;
+
+    _cairo_matrix_get_affine (matrix,
+			      &a,  &b,
+			      &c,  &d,
+			      &tx, &ty);
+
+    cairo_matrix_init (matrix,
+		       d, -b,
+		       -c, a,
+		       c*ty - d*tx, b*tx - a*ty);
+}
+
+/**
+ * cairo_matrix_invert:
+ * @matrix: a #cairo_matrix_t
+ *
+ * Changes @matrix to be the inverse of it's original value. Not
+ * all transformation matrices have inverses; if the matrix
+ * collapses points together (it is <firstterm>degenerate</firstterm>),
+ * then it has no inverse and this function will fail.
+ *
+ * Returns: If @matrix has an inverse, modifies @matrix to
+ *  be the inverse matrix and returns %CAIRO_STATUS_SUCCESS. Otherwise,
+ *  returns %CAIRO_STATUS_INVALID_MATRIX.
+ **/
+cairo_status_t
+cairo_matrix_invert (cairo_matrix_t *matrix)
+{
+    /* inv (A) = 1/det (A) * adj (A) */
+    double det;
+
+    det = _cairo_matrix_compute_determinant (matrix);
+
+    if (! ISFINITE (det))
+	return _cairo_error (CAIRO_STATUS_INVALID_MATRIX);
+
+    if (det == 0)
+	return _cairo_error (CAIRO_STATUS_INVALID_MATRIX);
+
+    _cairo_matrix_compute_adjoint (matrix);
+    _cairo_matrix_scalar_multiply (matrix, 1 / det);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+slim_hidden_def(cairo_matrix_invert);
+
+cairo_bool_t
+_cairo_matrix_is_invertible (const cairo_matrix_t *matrix)
+{
+    double det;
+
+    det = _cairo_matrix_compute_determinant (matrix);
+
+    return ISFINITE (det) && det != 0.;
+}
+
+double
+_cairo_matrix_compute_determinant (const cairo_matrix_t *matrix)
+{
+    double a, b, c, d;
+
+    a = matrix->xx; b = matrix->yx;
+    c = matrix->xy; d = matrix->yy;
+
+    return a*d - b*c;
+}
+
+/**
+ * _cairo_matrix_compute_basis_scale_factors:
+ * @matrix: a matrix
+ * @basis_scale: the scale factor in the direction of basis
+ * @normal_scale: the scale factor in the direction normal to the basis
+ * @x_basis: basis to use.  X basis if true, Y basis otherwise.
+ *
+ * Computes |Mv| and det(M)/|Mv| for v=[1,0] if x_basis is true, and v=[0,1]
+ * otherwise, and M is @matrix.
+ *
+ * Return value: the scale factor of @matrix on the height of the font,
+ * or 1.0 if @matrix is %NULL.
+ **/
+cairo_status_t
+_cairo_matrix_compute_basis_scale_factors (const cairo_matrix_t *matrix,
+					   double *basis_scale, double *normal_scale,
+					   cairo_bool_t x_basis)
+{
+    double det;
+
+    det = _cairo_matrix_compute_determinant (matrix);
+
+    if (! ISFINITE (det))
+	return _cairo_error (CAIRO_STATUS_INVALID_MATRIX);
+
+    if (det == 0)
+    {
+	*basis_scale = *normal_scale = 0;
+    }
+    else
+    {
+	double x = x_basis != 0;
+	double y = x == 0;
+	double major, minor;
+
+	cairo_matrix_transform_distance (matrix, &x, &y);
+	major = sqrt(x*x + y*y);
+	/*
+	 * ignore mirroring
+	 */
+	if (det < 0)
+	    det = -det;
+	if (major)
+	    minor = det / major;
+	else
+	    minor = 0.0;
+	if (x_basis)
+	{
+	    *basis_scale = major;
+	    *normal_scale = minor;
+	}
+	else
+	{
+	    *basis_scale = minor;
+	    *normal_scale = major;
+	}
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_bool_t
+_cairo_matrix_is_identity (const cairo_matrix_t *matrix)
+{
+    return (matrix->xx == 1.0 && matrix->yx == 0.0 &&
+	    matrix->xy == 0.0 && matrix->yy == 1.0 &&
+	    matrix->x0 == 0.0 && matrix->y0 == 0.0);
+}
+
+cairo_bool_t
+_cairo_matrix_is_translation (const cairo_matrix_t *matrix)
+{
+    return (matrix->xx == 1.0 && matrix->yx == 0.0 &&
+	    matrix->xy == 0.0 && matrix->yy == 1.0);
+}
+
+cairo_bool_t
+_cairo_matrix_is_integer_translation (const cairo_matrix_t *matrix,
+				      int *itx, int *ity)
+{
+    if (_cairo_matrix_is_translation (matrix))
+    {
+        cairo_fixed_t x0_fixed = _cairo_fixed_from_double (matrix->x0);
+        cairo_fixed_t y0_fixed = _cairo_fixed_from_double (matrix->y0);
+
+        if (_cairo_fixed_is_integer (x0_fixed) &&
+            _cairo_fixed_is_integer (y0_fixed))
+        {
+            if (itx)
+                *itx = _cairo_fixed_integer_part (x0_fixed);
+            if (ity)
+                *ity = _cairo_fixed_integer_part (y0_fixed);
+
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+/* By pixel exact here, we mean a matrix that is composed only of
+ * 90 degree rotations, flips, and integer translations and produces a 1:1
+ * mapping between source and destination pixels. If we transform an image
+ * with a pixel-exact matrix, filtering is not useful.
+ */
+cairo_private cairo_bool_t
+_cairo_matrix_is_pixel_exact (const cairo_matrix_t *matrix)
+{
+    cairo_fixed_t x0_fixed, y0_fixed;
+
+    if (matrix->xy == 0.0 && matrix->yx == 0.0) {
+	if (! (matrix->xx == 1.0 || matrix->xx == -1.0))
+	    return FALSE;
+	if (! (matrix->yy == 1.0 || matrix->yy == -1.0))
+	    return FALSE;
+    } else if (matrix->xx == 0.0 && matrix->yy == 0.0) {
+	if (! (matrix->xy == 1.0 || matrix->xy == -1.0))
+	    return FALSE;
+	if (! (matrix->yx == 1.0 || matrix->yx == -1.0))
+	    return FALSE;
+    } else
+	return FALSE;
+
+    x0_fixed = _cairo_fixed_from_double (matrix->x0);
+    y0_fixed = _cairo_fixed_from_double (matrix->y0);
+
+    return _cairo_fixed_is_integer (x0_fixed) && _cairo_fixed_is_integer (y0_fixed);
+}
+
+/*
+  A circle in user space is transformed into an ellipse in device space.
+
+  The following is a derivation of a formula to calculate the length of the
+  major axis for this ellipse; this is useful for error bounds calculations.
+
+  Thanks to Walter Brisken <wbrisken@aoc.nrao.edu> for this derivation:
+
+  1.  First some notation:
+
+  All capital letters represent vectors in two dimensions.  A prime '
+  represents a transformed coordinate.  Matrices are written in underlined
+  form, ie _R_.  Lowercase letters represent scalar real values.
+
+  2.  The question has been posed:  What is the maximum expansion factor
+  achieved by the linear transformation
+
+  X' = X _R_
+
+  where _R_ is a real-valued 2x2 matrix with entries:
+
+  _R_ = [a b]
+        [c d]  .
+
+  In other words, what is the maximum radius, MAX[ |X'| ], reached for any
+  X on the unit circle ( |X| = 1 ) ?
+
+  3.  Some useful formulae
+
+  (A) through (C) below are standard double-angle formulae.  (D) is a lesser
+  known result and is derived below:
+
+  (A)  sin²(θ) = (1 - cos(2*θ))/2
+  (B)  cos²(θ) = (1 + cos(2*θ))/2
+  (C)  sin(θ)*cos(θ) = sin(2*θ)/2
+  (D)  MAX[a*cos(θ) + b*sin(θ)] = sqrt(a² + b²)
+
+  Proof of (D):
+
+  find the maximum of the function by setting the derivative to zero:
+
+       -a*sin(θ)+b*cos(θ) = 0
+
+  From this it follows that
+
+       tan(θ) = b/a
+
+  and hence
+
+       sin(θ) = b/sqrt(a² + b²)
+
+  and
+
+       cos(θ) = a/sqrt(a² + b²)
+
+  Thus the maximum value is
+
+       MAX[a*cos(θ) + b*sin(θ)] = (a² + b²)/sqrt(a² + b²)
+                                   = sqrt(a² + b²)
+
+  4.  Derivation of maximum expansion
+
+  To find MAX[ |X'| ] we search brute force method using calculus.  The unit
+  circle on which X is constrained is to be parameterized by t:
+
+       X(θ) = (cos(θ), sin(θ))
+
+  Thus
+
+       X'(θ) = X(θ) * _R_ = (cos(θ), sin(θ)) * [a b]
+                                               [c d]
+             = (a*cos(θ) + c*sin(θ), b*cos(θ) + d*sin(θ)).
+
+  Define
+
+       r(θ) = |X'(θ)|
+
+  Thus
+
+       r²(θ) = (a*cos(θ) + c*sin(θ))² + (b*cos(θ) + d*sin(θ))²
+             = (a² + b²)*cos²(θ) + (c² + d²)*sin²(θ)
+                 + 2*(a*c + b*d)*cos(θ)*sin(θ)
+
+  Now apply the double angle formulae (A) to (C) from above:
+
+       r²(θ) = (a² + b² + c² + d²)/2
+	     + (a² + b² - c² - d²)*cos(2*θ)/2
+  	     + (a*c + b*d)*sin(2*θ)
+             = f + g*cos(φ) + h*sin(φ)
+
+  Where
+
+       f = (a² + b² + c² + d²)/2
+       g = (a² + b² - c² - d²)/2
+       h = (a*c + d*d)
+       φ = 2*θ
+
+  It is clear that MAX[ |X'| ] = sqrt(MAX[ r² ]).  Here we determine MAX[ r² ]
+  using (D) from above:
+
+       MAX[ r² ] = f + sqrt(g² + h²)
+
+  And finally
+
+       MAX[ |X'| ] = sqrt( f + sqrt(g² + h²) )
+
+  Which is the solution to this problem.
+
+  Walter Brisken
+  2004/10/08
+
+  (Note that the minor axis length is at the minimum of the above solution,
+  which is just sqrt ( f - sqrt(g² + h²) ) given the symmetry of (D)).
+
+
+  For another derivation of the same result, using Singular Value Decomposition,
+  see doc/tutorial/src/singular.c.
+*/
+
+/* determine the length of the major axis of a circle of the given radius
+   after applying the transformation matrix. */
+double
+_cairo_matrix_transformed_circle_major_axis (cairo_matrix_t *matrix, double radius)
+{
+    double  a, b, c, d, f, g, h, i, j;
+
+    _cairo_matrix_get_affine (matrix,
+                              &a, &b,
+                              &c, &d,
+                              NULL, NULL);
+
+    i = a*a + b*b;
+    j = c*c + d*d;
+
+    f = 0.5 * (i + j);
+    g = 0.5 * (i - j);
+    h = a*c + b*d;
+
+    return radius * sqrt (f + sqrt (g*g+h*h));
+
+    /*
+     * we don't need the minor axis length, which is
+     * double min = radius * sqrt (f - sqrt (g*g+h*h));
+     */
+}
+
+void
+_cairo_matrix_to_pixman_matrix (const cairo_matrix_t	*matrix,
+				pixman_transform_t	*pixman_transform)
+{
+    static const pixman_transform_t pixman_identity_transform = {{
+        {1 << 16,        0,       0},
+        {       0, 1 << 16,       0},
+        {       0,       0, 1 << 16}
+    }};
+
+    if (_cairo_matrix_is_identity (matrix)) {
+        *pixman_transform = pixman_identity_transform;
+    }
+    else {
+        cairo_matrix_t inv = *matrix;
+        double x = 0, y = 0;
+        pixman_vector_t vector;
+
+        pixman_transform->matrix[0][0] = _cairo_fixed_16_16_from_double (matrix->xx);
+        pixman_transform->matrix[0][1] = _cairo_fixed_16_16_from_double (matrix->xy);
+        pixman_transform->matrix[0][2] = _cairo_fixed_16_16_from_double (matrix->x0);
+
+        pixman_transform->matrix[1][0] = _cairo_fixed_16_16_from_double (matrix->yx);
+        pixman_transform->matrix[1][1] = _cairo_fixed_16_16_from_double (matrix->yy);
+        pixman_transform->matrix[1][2] = _cairo_fixed_16_16_from_double (matrix->y0);
+
+        pixman_transform->matrix[2][0] = 0;
+        pixman_transform->matrix[2][1] = 0;
+        pixman_transform->matrix[2][2] = 1 << 16;
+
+        /* The conversion above breaks cairo's translation invariance:
+         * a translation of (a, b) in device space translates to
+         * a translation of (xx * a + xy * b, yx * a + yy * b)
+         * for cairo, while pixman uses rounded versions of xx ... yy.
+         * This error increases as a and b get larger.
+         *
+         * To compensate for this, we fix the point (0, 0) in pattern
+         * space and adjust pixman's transform to agree with cairo's at
+         * that point. */
+
+        /* Note: If we can't invert the transformation, skip the adjustment. */
+        if (cairo_matrix_invert (&inv) != CAIRO_STATUS_SUCCESS)
+            return;
+
+        /* find the device space coordinate that maps to (0, 0) */
+        cairo_matrix_transform_point (&inv, &x, &y);
+
+        /* transform the resulting device space coordinate back
+         * to the pattern space, using pixman's transform */
+        vector.vector[0] = _cairo_fixed_16_16_from_double (x);
+        vector.vector[1] = _cairo_fixed_16_16_from_double (y);
+        vector.vector[2] = 1 << 16;
+
+        if (!pixman_transform_point_3d (pixman_transform, &vector))
+            return;
+
+        /* Ideally, the vector should now be (0, 0). We can now compensate
+         * for the resulting error */
+        pixman_transform->matrix[0][2] -= vector.vector[0];
+        pixman_transform->matrix[1][2] -= vector.vector[1];
+    }
+}

uppdev/plugin/cairo/lib/cairo-meta-surface-private.h

@@ -0,0 +1,190 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#ifndef CAIRO_META_SURFACE_H
+#define CAIRO_META_SURFACE_H
+
+#include "cairoint.h"
+#include "cairo-path-fixed-private.h"
+
+typedef enum {
+    /* The 5 basic drawing operations. */
+    CAIRO_COMMAND_PAINT,
+    CAIRO_COMMAND_MASK,
+    CAIRO_COMMAND_STROKE,
+    CAIRO_COMMAND_FILL,
+    CAIRO_COMMAND_SHOW_TEXT_GLYPHS,
+
+    /* Other junk. For most of these, we should be able to assert that
+     * they never get called except as part of fallbacks for the 5
+     * basic drawing operations (which we implement already so the
+     * fallbacks should never get triggered). So the plan is to
+     * eliminate as many of these as possible. */
+
+    CAIRO_COMMAND_INTERSECT_CLIP_PATH
+
+} cairo_command_type_t;
+
+typedef enum {
+    CAIRO_META_REGION_ALL,
+    CAIRO_META_REGION_NATIVE,
+    CAIRO_META_REGION_IMAGE_FALLBACK
+} cairo_meta_region_type_t;
+
+typedef struct _cairo_command_header {
+    cairo_command_type_t	 type;
+    cairo_meta_region_type_t     region;
+} cairo_command_header_t;
+
+typedef struct _cairo_command_paint {
+    cairo_command_header_t       header;
+    cairo_operator_t		 op;
+    cairo_pattern_union_t	 source;
+} cairo_command_paint_t;
+
+typedef struct _cairo_command_mask {
+    cairo_command_header_t       header;
+    cairo_operator_t		 op;
+    cairo_pattern_union_t	 source;
+    cairo_pattern_union_t	 mask;
+} cairo_command_mask_t;
+
+typedef struct _cairo_command_stroke {
+    cairo_command_header_t       header;
+    cairo_operator_t		 op;
+    cairo_pattern_union_t	 source;
+    cairo_path_fixed_t		 path;
+    cairo_stroke_style_t	 style;
+    cairo_matrix_t		 ctm;
+    cairo_matrix_t		 ctm_inverse;
+    double			 tolerance;
+    cairo_antialias_t		 antialias;
+} cairo_command_stroke_t;
+
+typedef struct _cairo_command_fill {
+    cairo_command_header_t       header;
+    cairo_operator_t		 op;
+    cairo_pattern_union_t	 source;
+    cairo_path_fixed_t		 path;
+    cairo_fill_rule_t		 fill_rule;
+    double			 tolerance;
+    cairo_antialias_t		 antialias;
+} cairo_command_fill_t;
+
+typedef struct _cairo_command_show_text_glyphs {
+    cairo_command_header_t       header;
+    cairo_operator_t		 op;
+    cairo_pattern_union_t	 source;
+    char			*utf8;
+    int				 utf8_len;
+    cairo_glyph_t		*glyphs;
+    unsigned int		 num_glyphs;
+    cairo_text_cluster_t	*clusters;
+    int				 num_clusters;
+    cairo_text_cluster_flags_t   cluster_flags;
+    cairo_scaled_font_t		*scaled_font;
+} cairo_command_show_text_glyphs_t;
+
+typedef struct _cairo_command_intersect_clip_path {
+    cairo_command_header_t      header;
+    cairo_path_fixed_t	       *path_pointer;
+    cairo_path_fixed_t		path;
+    cairo_fill_rule_t		fill_rule;
+    double			tolerance;
+    cairo_antialias_t		antialias;
+} cairo_command_intersect_clip_path_t;
+
+typedef union _cairo_command {
+    cairo_command_header_t      header;
+
+    /* The 5 basic drawing operations. */
+    cairo_command_paint_t			paint;
+    cairo_command_mask_t			mask;
+    cairo_command_stroke_t			stroke;
+    cairo_command_fill_t			fill;
+    cairo_command_show_text_glyphs_t		show_text_glyphs;
+
+    /* The other junk. */
+    cairo_command_intersect_clip_path_t		intersect_clip_path;
+} cairo_command_t;
+
+typedef struct _cairo_meta_surface {
+    cairo_surface_t base;
+
+    cairo_content_t content;
+
+    /* A meta-surface is logically unbounded, but when used as a
+     * source we need to render it to an image, so we need a size at
+     * which to create that image. */
+    int width_pixels;
+    int height_pixels;
+
+    cairo_array_t commands;
+    cairo_surface_t *commands_owner;
+
+    cairo_bool_t is_clipped;
+    int replay_start_idx;
+} cairo_meta_surface_t;
+
+cairo_private cairo_surface_t *
+_cairo_meta_surface_create (cairo_content_t	content,
+			    int			width_pixels,
+			    int			height_pixels);
+
+cairo_private cairo_int_status_t
+_cairo_meta_surface_get_path (cairo_surface_t	 *surface,
+			      cairo_path_fixed_t *path);
+
+cairo_private cairo_status_t
+_cairo_meta_surface_replay (cairo_surface_t *surface,
+			    cairo_surface_t *target);
+
+cairo_private cairo_status_t
+_cairo_meta_surface_replay_analyze_meta_pattern (cairo_surface_t *surface,
+						 cairo_surface_t *target);
+
+cairo_private cairo_status_t
+_cairo_meta_surface_replay_and_create_regions (cairo_surface_t *surface,
+					       cairo_surface_t *target);
+cairo_private cairo_status_t
+_cairo_meta_surface_replay_region (cairo_surface_t          *surface,
+				   cairo_surface_t          *target,
+				   cairo_meta_region_type_t  region);
+
+cairo_private cairo_bool_t
+_cairo_surface_is_meta (const cairo_surface_t *surface);
+
+#endif /* CAIRO_META_SURFACE_H */

uppdev/plugin/cairo/lib/cairo-misc.c

@@ -0,0 +1,669 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2007 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *      Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#include "cairoint.h"
+
+COMPILE_TIME_ASSERT (CAIRO_STATUS_LAST_STATUS < CAIRO_INT_STATUS_UNSUPPORTED);
+COMPILE_TIME_ASSERT (CAIRO_INT_STATUS_LAST_STATUS <= 127);
+
+/* Public stuff */
+
+/**
+ * cairo_status_to_string:
+ * @status: a cairo status
+ *
+ * Provides a human-readable description of a #cairo_status_t.
+ *
+ * Returns: a string representation of the status
+ */
+const char *
+cairo_status_to_string (cairo_status_t status)
+{
+    switch (status) {
+    case CAIRO_STATUS_SUCCESS:
+	return "success";
+    case CAIRO_STATUS_NO_MEMORY:
+	return "out of memory";
+    case CAIRO_STATUS_INVALID_RESTORE:
+	return "cairo_restore without matching cairo_save";
+    case CAIRO_STATUS_INVALID_POP_GROUP:
+	return "cairo_pop_group without matching cairo_push_group";
+    case CAIRO_STATUS_NO_CURRENT_POINT:
+	return "no current point defined";
+    case CAIRO_STATUS_INVALID_MATRIX:
+	return "invalid matrix (not invertible)";
+    case CAIRO_STATUS_INVALID_STATUS:
+	return "invalid value for an input cairo_status_t";
+    case CAIRO_STATUS_NULL_POINTER:
+	return "NULL pointer";
+    case CAIRO_STATUS_INVALID_STRING:
+	return "input string not valid UTF-8";
+    case CAIRO_STATUS_INVALID_PATH_DATA:
+	return "input path data not valid";
+    case CAIRO_STATUS_READ_ERROR:
+	return "error while reading from input stream";
+    case CAIRO_STATUS_WRITE_ERROR:
+	return "error while writing to output stream";
+    case CAIRO_STATUS_SURFACE_FINISHED:
+	return "the target surface has been finished";
+    case CAIRO_STATUS_SURFACE_TYPE_MISMATCH:
+	return "the surface type is not appropriate for the operation";
+    case CAIRO_STATUS_PATTERN_TYPE_MISMATCH:
+	return "the pattern type is not appropriate for the operation";
+    case CAIRO_STATUS_INVALID_CONTENT:
+	return "invalid value for an input cairo_content_t";
+    case CAIRO_STATUS_INVALID_FORMAT:
+	return "invalid value for an input cairo_format_t";
+    case CAIRO_STATUS_INVALID_VISUAL:
+	return "invalid value for an input Visual*";
+    case CAIRO_STATUS_FILE_NOT_FOUND:
+	return "file not found";
+    case CAIRO_STATUS_INVALID_DASH:
+	return "invalid value for a dash setting";
+    case CAIRO_STATUS_INVALID_DSC_COMMENT:
+	return "invalid value for a DSC comment";
+    case CAIRO_STATUS_INVALID_INDEX:
+	return "invalid index passed to getter";
+    case CAIRO_STATUS_CLIP_NOT_REPRESENTABLE:
+        return "clip region not representable in desired format";
+    case CAIRO_STATUS_TEMP_FILE_ERROR:
+	return "error creating or writing to a temporary file";
+    case CAIRO_STATUS_INVALID_STRIDE:
+	return "invalid value for stride";
+    case CAIRO_STATUS_FONT_TYPE_MISMATCH:
+	return "the font type is not appropriate for the operation";
+    case CAIRO_STATUS_USER_FONT_IMMUTABLE:
+	return "the user-font is immutable";
+    case CAIRO_STATUS_USER_FONT_ERROR:
+	return "error occurred in a user-font callback function";
+    case CAIRO_STATUS_NEGATIVE_COUNT:
+	return "negative number used where it is not allowed";
+    case CAIRO_STATUS_INVALID_CLUSTERS:
+	return "input clusters do not represent the accompanying text and glyph arrays";
+    case CAIRO_STATUS_INVALID_SLANT:
+	return "invalid value for an input #cairo_font_slant_t";
+    case CAIRO_STATUS_INVALID_WEIGHT:
+	return "input value for an input #cairo_font_weight_t";
+    }
+
+    return "<unknown error status>";
+}
+
+
+/**
+ * cairo_glyph_allocate:
+ * @num_glyphs: number of glyphs to allocate
+ *
+ * Allocates an array of #cairo_glyph_t's.
+ * This function is only useful in implementations of
+ * #cairo_user_scaled_font_text_to_glyphs_func_t where the user
+ * needs to allocate an array of glyphs that cairo will free.
+ * For all other uses, user can use their own allocation method
+ * for glyphs.
+ *
+ * This function returns %NULL if @num_glyphs is not positive,
+ * or if out of memory.  That means, the %NULL return value
+ * signals out-of-memory only if @num_glyphs was positive.
+ *
+ * Returns: the newly allocated array of glyphs that should be
+ *          freed using cairo_glyph_free()
+ *
+ * Since: 1.8
+ */
+cairo_glyph_t *
+cairo_glyph_allocate (int num_glyphs)
+{
+    if (num_glyphs <= 0)
+	return NULL;
+
+    return _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t));
+}
+slim_hidden_def (cairo_glyph_allocate);
+
+/**
+ * cairo_glyph_free:
+ * @glyphs: array of glyphs to free, or %NULL
+ *
+ * Frees an array of #cairo_glyph_t's allocated using cairo_glyph_allocate().
+ * This function is only useful to free glyph array returned
+ * by cairo_scaled_font_text_to_glyphs() where cairo returns
+ * an array of glyphs that the user will free.
+ * For all other uses, user can use their own allocation method
+ * for glyphs.
+ *
+ * Since: 1.8
+ */
+void
+cairo_glyph_free (cairo_glyph_t *glyphs)
+{
+    if (glyphs)
+	free (glyphs);
+}
+slim_hidden_def (cairo_glyph_free);
+
+/**
+ * cairo_text_cluster_allocate:
+ * @num_clusters: number of text_clusters to allocate
+ *
+ * Allocates an array of #cairo_text_cluster_t's.
+ * This function is only useful in implementations of
+ * #cairo_user_scaled_font_text_to_glyphs_func_t where the user
+ * needs to allocate an array of text clusters that cairo will free.
+ * For all other uses, user can use their own allocation method
+ * for text clusters.
+ *
+ * This function returns %NULL if @num_clusters is not positive,
+ * or if out of memory.  That means, the %NULL return value
+ * signals out-of-memory only if @num_clusters was positive.
+ *
+ * Returns: the newly allocated array of text clusters that should be
+ *          freed using cairo_text_cluster_free()
+ *
+ * Since: 1.8
+ */
+cairo_text_cluster_t *
+cairo_text_cluster_allocate (int num_clusters)
+{
+    if (num_clusters <= 0)
+	return NULL;
+
+    return _cairo_malloc_ab (num_clusters, sizeof (cairo_text_cluster_t));
+}
+slim_hidden_def (cairo_text_cluster_allocate);
+
+/**
+ * cairo_text_cluster_free:
+ * @clusters: array of text clusters to free, or %NULL
+ *
+ * Frees an array of #cairo_text_cluster's allocated using cairo_text_cluster_allocate().
+ * This function is only useful to free text cluster array returned
+ * by cairo_scaled_font_text_to_glyphs() where cairo returns
+ * an array of text clusters that the user will free.
+ * For all other uses, user can use their own allocation method
+ * for text clusters.
+ *
+ * Since: 1.8
+ */
+void
+cairo_text_cluster_free (cairo_text_cluster_t *clusters)
+{
+    if (clusters)
+	free (clusters);
+}
+slim_hidden_def (cairo_text_cluster_free);
+
+
+/* Private stuff */
+
+/**
+ * _cairo_validate_text_clusters:
+ * @utf8: UTF-8 text
+ * @utf8_len: length of @utf8 in bytes
+ * @glyphs: array of glyphs
+ * @num_glyphs: number of glyphs
+ * @clusters: array of cluster mapping information
+ * @num_clusters: number of clusters in the mapping
+ * @cluster_flags: cluster flags
+ *
+ * Check that clusters cover the entire glyphs and utf8 arrays,
+ * and that cluster boundaries are UTF-8 boundaries.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS upon success, or
+ *               %CAIRO_STATUS_INVALID_CLUSTERS on error.
+ *               The error is either invalid UTF-8 input,
+ *               or bad cluster mapping.
+ */
+cairo_status_t
+_cairo_validate_text_clusters (const char		   *utf8,
+			       int			    utf8_len,
+			       const cairo_glyph_t	   *glyphs,
+			       int			    num_glyphs,
+			       const cairo_text_cluster_t  *clusters,
+			       int			    num_clusters,
+			       cairo_text_cluster_flags_t   cluster_flags)
+{
+    cairo_status_t status;
+    unsigned int n_bytes  = 0;
+    unsigned int n_glyphs = 0;
+    int i;
+
+    for (i = 0; i < num_clusters; i++) {
+	int cluster_bytes  = clusters[i].num_bytes;
+	int cluster_glyphs = clusters[i].num_glyphs;
+
+	if (cluster_bytes < 0 || cluster_glyphs < 0)
+	    goto BAD;
+
+	/* A cluster should cover at least one character or glyph.
+	 * I can't see any use for a 0,0 cluster.
+	 * I can't see an immediate use for a zero-text cluster
+	 * right now either, but they don't harm.
+	 * Zero-glyph clusters on the other hand are useful for
+	 * things like U+200C ZERO WIDTH NON-JOINER */
+	if (cluster_bytes == 0 && cluster_glyphs == 0)
+	    goto BAD;
+
+	/* Since n_bytes and n_glyphs are unsigned, but the rest of
+	 * values involved are signed, we can detect overflow easily */
+	if (n_bytes+cluster_bytes > (unsigned int)utf8_len || n_glyphs+cluster_glyphs > (unsigned int)num_glyphs)
+	    goto BAD;
+
+	/* Make sure we've got valid UTF-8 for the cluster */
+	status = _cairo_utf8_to_ucs4 (utf8+n_bytes, cluster_bytes, NULL, NULL);
+	if (status)
+	    return CAIRO_STATUS_INVALID_CLUSTERS;
+
+	n_bytes  += cluster_bytes ;
+	n_glyphs += cluster_glyphs;
+    }
+
+    if (n_bytes != (unsigned int) utf8_len || n_glyphs != (unsigned int) num_glyphs) {
+      BAD:
+	return CAIRO_STATUS_INVALID_CLUSTERS;
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/**
+ * _cairo_operator_bounded_by_mask:
+ * @op: a #cairo_operator_t
+ *
+ * A bounded operator is one where mask pixel
+ * of zero results in no effect on the destination image.
+ *
+ * Unbounded operators often require special handling; if you, for
+ * example, draw trapezoids with an unbounded operator, the effect
+ * extends past the bounding box of the trapezoids.
+ *
+ * Return value: %TRUE if the operator is bounded by the mask operand
+ **/
+cairo_bool_t
+_cairo_operator_bounded_by_mask (cairo_operator_t op)
+{
+    switch (op) {
+    case CAIRO_OPERATOR_CLEAR:
+    case CAIRO_OPERATOR_SOURCE:
+    case CAIRO_OPERATOR_OVER:
+    case CAIRO_OPERATOR_ATOP:
+    case CAIRO_OPERATOR_DEST:
+    case CAIRO_OPERATOR_DEST_OVER:
+    case CAIRO_OPERATOR_DEST_OUT:
+    case CAIRO_OPERATOR_XOR:
+    case CAIRO_OPERATOR_ADD:
+    case CAIRO_OPERATOR_SATURATE:
+	return TRUE;
+    case CAIRO_OPERATOR_OUT:
+    case CAIRO_OPERATOR_IN:
+    case CAIRO_OPERATOR_DEST_IN:
+    case CAIRO_OPERATOR_DEST_ATOP:
+	return FALSE;
+    }
+
+    ASSERT_NOT_REACHED;
+    return FALSE;
+}
+
+/**
+ * _cairo_operator_bounded_by_source:
+ * @op: a #cairo_operator_t
+ *
+ * A bounded operator is one where source pixels of zero
+ * (in all four components, r, g, b and a) effect no change
+ * in the resulting destination image.
+ *
+ * Unbounded operators often require special handling; if you, for
+ * example, copy a surface with the SOURCE operator, the effect
+ * extends past the bounding box of the source surface.
+ *
+ * Return value: %TRUE if the operator is bounded by the source operand
+ **/
+cairo_bool_t
+_cairo_operator_bounded_by_source (cairo_operator_t op)
+{
+    switch (op) {
+    case CAIRO_OPERATOR_OVER:
+    case CAIRO_OPERATOR_ATOP:
+    case CAIRO_OPERATOR_DEST:
+    case CAIRO_OPERATOR_DEST_OVER:
+    case CAIRO_OPERATOR_DEST_OUT:
+    case CAIRO_OPERATOR_XOR:
+    case CAIRO_OPERATOR_ADD:
+    case CAIRO_OPERATOR_SATURATE:
+	return TRUE;
+    case CAIRO_OPERATOR_CLEAR:
+    case CAIRO_OPERATOR_SOURCE:
+    case CAIRO_OPERATOR_OUT:
+    case CAIRO_OPERATOR_IN:
+    case CAIRO_OPERATOR_DEST_IN:
+    case CAIRO_OPERATOR_DEST_ATOP:
+	return FALSE;
+    }
+
+    ASSERT_NOT_REACHED;
+    return FALSE;
+}
+
+
+void
+_cairo_restrict_value (double *value, double min, double max)
+{
+    if (*value < min)
+	*value = min;
+    else if (*value > max)
+	*value = max;
+}
+
+/* This function is identical to the C99 function lround(), except that it
+ * performs arithmetic rounding (instead of away-from-zero rounding) and
+ * has a valid input range of (INT_MIN, INT_MAX] instead of
+ * [INT_MIN, INT_MAX]. It is much faster on both x86 and FPU-less systems
+ * than other commonly used methods for rounding (lround, round, rint, lrint
+ * or float (d + 0.5)).
+ *
+ * The reason why this function is much faster on x86 than other
+ * methods is due to the fact that it avoids the fldcw instruction.
+ * This instruction incurs a large performance penalty on modern Intel
+ * processors due to how it prevents efficient instruction pipelining.
+ *
+ * The reason why this function is much faster on FPU-less systems is for
+ * an entirely different reason. All common rounding methods involve multiple
+ * floating-point operations. Each one of these operations has to be
+ * emulated in software, which adds up to be a large performance penalty.
+ * This function doesn't perform any floating-point calculations, and thus
+ * avoids this penalty.
+  */
+int
+_cairo_lround (double d)
+{
+    uint32_t top, shift_amount, output;
+    union {
+        double d;
+        uint64_t ui64;
+        uint32_t ui32[2];
+    } u;
+
+    u.d = d;
+
+    /* If the integer word order doesn't match the float word order, we swap
+     * the words of the input double. This is needed because we will be
+     * treating the whole double as a 64-bit unsigned integer. Notice that we
+     * use WORDS_BIGENDIAN to detect the integer word order, which isn't
+     * exactly correct because WORDS_BIGENDIAN refers to byte order, not word
+     * order. Thus, we are making the assumption that the byte order is the
+     * same as the integer word order which, on the modern machines that we
+     * care about, is OK.
+     */
+#if ( defined(FLOAT_WORDS_BIGENDIAN) && !defined(WORDS_BIGENDIAN)) || \
+    (!defined(FLOAT_WORDS_BIGENDIAN) &&  defined(WORDS_BIGENDIAN))
+    {
+        uint32_t temp = u.ui32[0];
+        u.ui32[0] = u.ui32[1];
+        u.ui32[1] = temp;
+    }
+#endif
+
+#ifdef WORDS_BIGENDIAN
+    #define MSW (0) /* Most Significant Word */
+    #define LSW (1) /* Least Significant Word */
+#else
+    #define MSW (1)
+    #define LSW (0)
+#endif
+
+    /* By shifting the most significant word of the input double to the
+     * right 20 places, we get the very "top" of the double where the exponent
+     * and sign bit lie.
+     */
+    top = u.ui32[MSW] >> 20;
+
+    /* Here, we calculate how much we have to shift the mantissa to normalize
+     * it to an integer value. We extract the exponent "top" by masking out the
+     * sign bit, then we calculate the shift amount by subtracting the exponent
+     * from the bias. Notice that the correct bias for 64-bit doubles is
+     * actually 1075, but we use 1053 instead for two reasons:
+     *
+     *  1) To perform rounding later on, we will first need the target
+     *     value in a 31.1 fixed-point format. Thus, the bias needs to be one
+     *     less: (1075 - 1: 1074).
+     *
+     *  2) To avoid shifting the mantissa as a full 64-bit integer (which is
+     *     costly on certain architectures), we break the shift into two parts.
+     *     First, the upper and lower parts of the mantissa are shifted
+     *     individually by a constant amount that all valid inputs will require
+     *     at the very least. This amount is chosen to be 21, because this will
+     *     allow the two parts of the mantissa to later be combined into a
+     *     single 32-bit representation, on which the remainder of the shift
+     *     will be performed. Thus, we decrease the bias by an additional 21:
+     *     (1074 - 21: 1053).
+     */
+    shift_amount = 1053 - (top & 0x7FF);
+
+    /* We are done with the exponent portion in "top", so here we shift it off
+     * the end.
+     */
+    top >>= 11;
+
+    /* Before we perform any operations on the mantissa, we need to OR in
+     * the implicit 1 at the top (see the IEEE-754 spec). We needn't mask
+     * off the sign bit nor the exponent bits because these higher bits won't
+     * make a bit of difference in the rest of our calculations.
+     */
+    u.ui32[MSW] |= 0x100000;
+
+    /* If the input double is negative, we have to decrease the mantissa
+     * by a hair. This is an important part of performing arithmetic rounding,
+     * as negative numbers must round towards positive infinity in the
+     * halfwase case of -x.5. Since "top" contains only the sign bit at this
+     * point, we can just decrease the mantissa by the value of "top".
+     */
+    u.ui64 -= top;
+
+    /* By decrementing "top", we create a bitmask with a value of either
+     * 0x0 (if the input was negative) or 0xFFFFFFFF (if the input was positive
+     * and thus the unsigned subtraction underflowed) that we'll use later.
+     */
+    top--;
+
+    /* Here, we shift the mantissa by the constant value as described above.
+     * We can emulate a 64-bit shift right by 21 through shifting the top 32
+     * bits left 11 places and ORing in the bottom 32 bits shifted 21 places
+     * to the right. Both parts of the mantissa are now packed into a single
+     * 32-bit integer. Although we severely truncate the lower part in the
+     * process, we still have enough significant bits to perform the conversion
+     * without error (for all valid inputs).
+     */
+    output = (u.ui32[MSW] << 11) | (u.ui32[LSW] >> 21);
+
+    /* Next, we perform the shift that converts the X.Y fixed-point number
+     * currently found in "output" to the desired 31.1 fixed-point format
+     * needed for the following rounding step. It is important to consider
+     * all possible values for "shift_amount" at this point:
+     *
+     * - {shift_amount < 0} Since shift_amount is an unsigned integer, it
+     *   really can't have a value less than zero. But, if the shift_amount
+     *   calculation above caused underflow (which would happen with
+     *   input > INT_MAX or input <= INT_MIN) then shift_amount will now be
+     *   a very large number, and so this shift will result in complete
+     *   garbage. But that's OK, as the input was out of our range, so our
+     *   output is undefined.
+     *
+     * - {shift_amount > 31} If the magnitude of the input was very small
+     *   (i.e. |input| << 1.0), shift_amount will have a value greater than
+     *   31. Thus, this shift will also result in garbage. After performing
+     *   the shift, we will zero-out "output" if this is the case.
+     *
+     * - {0 <= shift_amount < 32} In this case, the shift will properly convert
+     *   the mantissa into a 31.1 fixed-point number.
+     */
+    output >>= shift_amount;
+
+    /* This is where we perform rounding with the 31.1 fixed-point number.
+     * Since what we're after is arithmetic rounding, we simply add the single
+     * fractional bit into the integer part of "output", and just keep the
+     * integer part.
+     */
+    output = (output >> 1) + (output & 1);
+
+    /* Here, we zero-out the result if the magnitude if the input was very small
+     * (as explained in the section above). Notice that all input out of the
+     * valid range is also caught by this condition, which means we produce 0
+     * for all invalid input, which is a nice side effect.
+     *
+     * The most straightforward way to do this would be:
+     *
+     *      if (shift_amount > 31)
+     *          output = 0;
+     *
+     * But we can use a little trick to avoid the potential branch. The
+     * expression (shift_amount > 31) will be either 1 or 0, which when
+     * decremented will be either 0x0 or 0xFFFFFFFF (unsigned underflow),
+     * which can be used to conditionally mask away all the bits in "output"
+     * (in the 0x0 case), effectively zeroing it out. Certain, compilers would
+     * have done this for us automatically.
+     */
+    output &= ((shift_amount > 31) - 1);
+
+    /* If the input double was a negative number, then we have to negate our
+     * output. The most straightforward way to do this would be:
+     *
+     *      if (!top)
+     *          output = -output;
+     *
+     * as "top" at this point is either 0x0 (if the input was negative) or
+     * 0xFFFFFFFF (if the input was positive). But, we can use a trick to
+     * avoid the branch. Observe that the following snippet of code has the
+     * same effect as the reference snippet above:
+     *
+     *      if (!top)
+     *          output = 0 - output;
+     *      else
+     *          output = output - 0;
+     *
+     * Armed with the bitmask found in "top", we can condense the two statements
+     * into the following:
+     *
+     *      output = (output & top) - (output & ~top);
+     *
+     * where, in the case that the input double was negative, "top" will be 0,
+     * and the statement will be equivalent to:
+     *
+     *      output = (0) - (output);
+     *
+     * and if the input double was positive, "top" will be 0xFFFFFFFF, and the
+     * statement will be equivalent to:
+     *
+     *      output = (output) - (0);
+     *
+     * Which, as pointed out earlier, is equivalent to the original reference
+     * snippet.
+     */
+    output = (output & top) - (output & ~top);
+
+    return output;
+#undef MSW
+#undef LSW
+}
+
+
+#ifdef _WIN32
+
+#define WIN32_LEAN_AND_MEAN
+/* We require Windows 2000 features such as ETO_PDY */
+#if !defined(WINVER) || (WINVER < 0x0500)
+# define WINVER 0x0500
+#endif
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
+# define _WIN32_WINNT 0x0500
+#endif
+
+#include <windows.h>
+#include <io.h>
+
+/* tmpfile() replacment for Windows.
+ *
+ * On Windows tmpfile() creates the file in the root directory. This
+ * may fail due to unsufficient privileges.
+ */
+FILE *
+_cairo_win32_tmpfile (void)
+{
+    DWORD path_len;
+    WCHAR path_name[MAX_PATH + 1];
+    WCHAR file_name[MAX_PATH + 1];
+    HANDLE handle;
+    int fd;
+    FILE *fp;
+
+    path_len = GetTempPathW (MAX_PATH, path_name);
+    if (path_len <= 0 || path_len >= MAX_PATH)
+	return NULL;
+
+    if (GetTempFileNameW (path_name, L"ps_", 0, file_name) == 0)
+	return NULL;
+
+    handle = CreateFileW (file_name,
+			 GENERIC_READ | GENERIC_WRITE,
+			 0,
+			 NULL,
+			 CREATE_ALWAYS,
+			 FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE,
+			 NULL);
+    if (handle == INVALID_HANDLE_VALUE) {
+	DeleteFileW (file_name);
+	return NULL;
+    }
+
+    fd = _open_osfhandle((intptr_t) handle, 0);
+    if (fd < 0) {
+	CloseHandle (handle);
+	return NULL;
+    }
+
+    fp = fdopen(fd, "w+b");
+    if (fp == NULL) {
+	_close(fd);
+	return NULL;
+    }
+
+    return fp;
+}
+
+#endif /* _WIN32 */

uppdev/plugin/cairo/lib/cairo-mutex-impl-private.h

@@ -0,0 +1,239 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005,2007 Red Hat, Inc.
+ * Copyright © 2007 Mathias Hasselmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Mathias Hasselmann <mathias.hasselmann@gmx.de>
+ *	Behdad Esfahbod <behdad@behdad.org>
+ */
+
+#ifndef CAIRO_MUTEX_IMPL_PRIVATE_H
+#define CAIRO_MUTEX_IMPL_PRIVATE_H
+
+#include "cairo.h"
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if HAVE_LOCKDEP
+#include <lockdep.h>
+#endif
+
+/* A fully qualified no-operation statement */
+#define CAIRO_MUTEX_IMPL_NOOP	do {/*no-op*/} while (0)
+/* And one that evaluates it's argument once */
+#define CAIRO_MUTEX_IMPL_NOOP1(expr)        do { if (expr) ; } while (0)
+
+
+/* Cairo mutex implementation:
+ *
+ * Any new mutex implementation needs to do the following:
+ *
+ * - Condition on the right header or feature.  Headers are
+ *   preferred as eg. you still can use win32 mutex implementation
+ *   on a win32 system even if you do not compile the win32
+ *   surface/backend.
+ *
+ * - typedef #cairo_mutex_impl_t to the proper mutex type on your target
+ *   system.  Note that you may or may not need to use a pointer,
+ *   depending on what kinds of initialization your mutex
+ *   implementation supports.  No trailing semicolon needed.
+ *   You should be able to compile the following snippet (don't try
+ *   running it):
+ *
+ *   <programlisting>
+ *	cairo_mutex_impl_t _cairo_some_mutex;
+ *   </programlisting>
+ *
+ * - #define %CAIRO_MUTEX_IMPL_<NAME> 1 with suitable name for your platform.  You
+ *   can later use this symbol in cairo-system.c.
+ *
+ * - #define CAIRO_MUTEX_IMPL_LOCK(mutex) and CAIRO_MUTEX_IMPL_UNLOCK(mutex) to
+ *   proper statement to lock/unlock the mutex object passed in.
+ *   You can (and should) assume that the mutex is already
+ *   initialized, and is-not-already-locked/is-locked,
+ *   respectively.  Use the "do { ... } while (0)" idiom if necessary.
+ *   No trailing semicolons are needed (in any macro you define here).
+ *   You should be able to compile the following snippet:
+ *
+ *   <programlisting>
+ *	cairo_mutex_impl_t _cairo_some_mutex;
+ *
+ *      if (1)
+ *          CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex);
+ *      else
+ *          CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex);
+ *   </programlisting>
+ *
+ * - #define %CAIRO_MUTEX_IMPL_NIL_INITIALIZER to something that can
+ *   initialize the #cairo_mutex_impl_t type you defined.  Most of the
+ *   time one of 0, %NULL, or {} works.  At this point
+ *   you should be able to compile the following snippet:
+ *
+ *   <programlisting>
+ *	cairo_mutex_impl_t _cairo_some_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER;
+ *
+ *      if (1)
+ *          CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex);
+ *      else
+ *          CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex);
+ *   </programlisting>
+ *
+ * - If the above code is not enough to initialize a mutex on
+ *   your platform, #define CAIRO_MUTEX_IMPL_INIT(mutex) to statement
+ *   to initialize the mutex (allocate resources, etc).  Such that
+ *   you should be able to compile AND RUN the following snippet:
+ *
+ *   <programlisting>
+ *	cairo_mutex_impl_t _cairo_some_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER;
+ *
+ *      CAIRO_MUTEX_IMPL_INIT (_cairo_some_mutex);
+ *
+ *      if (1)
+ *          CAIRO_MUTEX_IMPL_LOCK (_cairo_some_mutex);
+ *      else
+ *          CAIRO_MUTEX_IMPL_UNLOCK (_cairo_some_mutex);
+ *   </programlisting>
+ *
+ * - If you define CAIRO_MUTEX_IMPL_INIT(mutex), cairo will use it to
+ *   initialize all static mutex'es.  If for any reason that should
+ *   not happen (eg. %CAIRO_MUTEX_IMPL_INIT is just a faster way than
+ *   what cairo does using %CAIRO_MUTEX_IMPL_NIL_INITIALIZER), then
+ *   <programlisting>
+ *      #define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP
+ *   </programlisting>
+ *
+ * - If your system supports freeing a mutex object (deallocating
+ *   resources, etc), then #define CAIRO_MUTEX_IMPL_FINI(mutex) to do
+ *   that.
+ *
+ * - If you define CAIRO_MUTEX_IMPL_FINI(mutex), cairo will use it to
+ *   define a finalizer function to finalize all static mutex'es.
+ *   However, it's up to you to call CAIRO_MUTEX_IMPL_FINALIZE() at
+ *   proper places, eg. when the system is unloading the cairo library.
+ *   So, if for any reason finalizing static mutex'es is not needed
+ *   (eg. you never call CAIRO_MUTEX_IMPL_FINALIZE()), then
+ *   <programlisting>
+ *      #define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP
+ *   </programlisting>
+ *
+ * - That is all.  If for any reason you think the above API is
+ *   not enough to implement #cairo_mutex_impl_t on your system, please
+ *   stop and write to the cairo mailing list about it.  DO NOT
+ *   poke around cairo-mutex-private.h for possible solutions.
+ */
+
+#if CAIRO_NO_MUTEX
+
+/* No mutexes */
+
+  typedef int cairo_mutex_impl_t;
+
+# define CAIRO_MUTEX_IMPL_NO 1
+# define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP
+# define CAIRO_MUTEX_IMPL_LOCK(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex)
+# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex)
+# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER 0
+
+#elif HAVE_PTHREAD_H /*******************************************************/
+
+# include <pthread.h>
+
+  typedef pthread_mutex_t cairo_mutex_impl_t;
+
+# define CAIRO_MUTEX_IMPL_PTHREAD 1
+#if HAVE_LOCKDEP
+/* expose all mutexes to the validator */
+# define CAIRO_MUTEX_IMPL_INIT(mutex) pthread_mutex_init (&(mutex), NULL)
+#endif
+# define CAIRO_MUTEX_IMPL_LOCK(mutex) pthread_mutex_lock (&(mutex))
+# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
+#if HAVE_LOCKDEP
+# define CAIRO_MUTEX_IS_LOCKED(mutex) LOCKDEP_IS_LOCKED (&(mutex))
+# define CAIRO_MUTEX_IS_UNLOCKED(mutex) LOCKDEP_IS_UNLOCKED (&(mutex))
+#endif
+# define CAIRO_MUTEX_IMPL_FINI(mutex) pthread_mutex_destroy (&(mutex))
+#if ! HAVE_LOCKDEP
+# define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP
+#endif
+# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER PTHREAD_MUTEX_INITIALIZER
+
+#elif defined(HAVE_WINDOWS_H) || defined(_MSC_VER) /*************************/
+
+# include <windows.h>
+
+  typedef CRITICAL_SECTION cairo_mutex_impl_t;
+
+# define CAIRO_MUTEX_IMPL_WIN32 1
+# define CAIRO_MUTEX_IMPL_LOCK(mutex) EnterCriticalSection (&(mutex))
+# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) LeaveCriticalSection (&(mutex))
+# define CAIRO_MUTEX_IMPL_INIT(mutex) InitializeCriticalSection (&(mutex))
+# define CAIRO_MUTEX_IMPL_FINI(mutex) DeleteCriticalSection (&(mutex))
+# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER { NULL, 0, 0, NULL, NULL, 0 }
+
+#elif defined __OS2__ /******************************************************/
+
+# define INCL_BASE
+# define INCL_PM
+# include <os2.h>
+
+  typedef HMTX cairo_mutex_impl_t;
+
+# define CAIRO_MUTEX_IMPL_OS2 1
+# define CAIRO_MUTEX_IMPL_LOCK(mutex) DosRequestMutexSem(mutex, SEM_INDEFINITE_WAIT)
+# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) DosReleaseMutexSem(mutex)
+# define CAIRO_MUTEX_IMPL_INIT(mutex) DosCreateMutexSem (NULL, &(mutex), 0L, FALSE)
+# define CAIRO_MUTEX_IMPL_FINI(mutex) DosCloseMutexSem (mutex)
+# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER 0
+
+#elif CAIRO_HAS_BEOS_SURFACE /***********************************************/
+
+  typedef BLocker* cairo_mutex_impl_t;
+
+# define CAIRO_MUTEX_IMPL_BEOS 1
+# define CAIRO_MUTEX_IMPL_LOCK(mutex) (mutex)->Lock()
+# define CAIRO_MUTEX_IMPL_UNLOCK(mutex) (mutex)->Unlock()
+# define CAIRO_MUTEX_IMPL_INIT(mutex) (mutex) = new BLocker()
+# define CAIRO_MUTEX_IMPL_FINI(mutex) delete (mutex)
+# define CAIRO_MUTEX_IMPL_NIL_INITIALIZER NULL
+
+#else /**********************************************************************/
+
+# error "XXX: No mutex implementation found.  Cairo will not work with multiple threads.  Define CAIRO_NO_MUTEX to 1 to acknowledge and accept this limitation and compile cairo without thread-safety support."
+
+
+#endif
+
+#endif

uppdev/plugin/cairo/lib/cairo-mutex-list-private.h

@@ -0,0 +1,59 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Mathias Hasselmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * Contributor(s):
+ *	Mathias Hasselmann <mathias.hasselmann@gmx.de>
+ */
+
+#ifndef CAIRO_FEATURES_H
+/* This block is to just make this header file standalone */
+#define CAIRO_MUTEX_DECLARE(mutex)
+#endif
+
+CAIRO_MUTEX_DECLARE (_cairo_pattern_solid_pattern_cache_lock)
+CAIRO_MUTEX_DECLARE (_cairo_pattern_solid_surface_cache_lock)
+
+CAIRO_MUTEX_DECLARE (_cairo_font_face_mutex)
+CAIRO_MUTEX_DECLARE (_cairo_scaled_font_map_mutex)
+CAIRO_MUTEX_DECLARE (_cairo_scaled_font_error_mutex)
+
+#if CAIRO_HAS_FT_FONT
+CAIRO_MUTEX_DECLARE (_cairo_ft_unscaled_font_map_mutex)
+#endif
+
+#if CAIRO_HAS_XLIB_SURFACE
+CAIRO_MUTEX_DECLARE (_cairo_xlib_display_mutex)
+#endif
+
+#if !defined (HAS_ATOMIC_OPS) || defined (ATOMIC_OP_NEEDS_MEMORY_BARRIER)
+CAIRO_MUTEX_DECLARE (_cairo_atomic_mutex)
+#endif
+
+/* Undefine, to err on unintended inclusion */
+#undef   CAIRO_MUTEX_DECLARE

uppdev/plugin/cairo/lib/cairo-mutex-private.h

@@ -0,0 +1,67 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005,2007 Red Hat, Inc.
+ * Copyright © 2007 Mathias Hasselmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Mathias Hasselmann <mathias.hasselmann@gmx.de>
+ *	Behdad Esfahbod <behdad@behdad.org>
+ */
+
+#ifndef CAIRO_MUTEX_PRIVATE_H
+#define CAIRO_MUTEX_PRIVATE_H
+
+#include "cairo-mutex-type-private.h"
+
+CAIRO_BEGIN_DECLS
+
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER
+cairo_private void _cairo_mutex_initialize (void);
+#endif
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+cairo_private void _cairo_mutex_finalize (void);
+#endif
+/* only if using static initializer and/or finalizer define the boolean */
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER || _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+  cairo_private extern cairo_bool_t _cairo_mutex_initialized;
+#endif
+
+/* Finally, extern the static mutexes and undef */
+
+#define CAIRO_MUTEX_DECLARE(mutex) cairo_private extern cairo_mutex_t mutex;
+#include "cairo-mutex-list-private.h"
+#undef CAIRO_MUTEX_DECLARE
+
+CAIRO_END_DECLS
+
+#endif

uppdev/plugin/cairo/lib/cairo-mutex-type-private.h

@@ -0,0 +1,187 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005,2007 Red Hat, Inc.
+ * Copyright © 2007 Mathias Hasselmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Mathias Hasselmann <mathias.hasselmann@gmx.de>
+ *	Behdad Esfahbod <behdad@behdad.org>
+ */
+
+#ifndef CAIRO_MUTEX_TYPE_PRIVATE_H
+#define CAIRO_MUTEX_TYPE_PRIVATE_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-mutex-impl-private.h"
+
+/* Only the following three are mandatory at this point */
+#ifndef CAIRO_MUTEX_IMPL_LOCK
+# error "CAIRO_MUTEX_IMPL_LOCK not defined.  Check cairo-mutex-impl-private.h."
+#endif
+#ifndef CAIRO_MUTEX_IMPL_UNLOCK
+# error "CAIRO_MUTEX_IMPL_UNLOCK not defined.  Check cairo-mutex-impl-private.h."
+#endif
+#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER
+# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined.  Check cairo-mutex-impl-private.h."
+#endif
+
+
+/* make sure implementations don't fool us: we decide these ourself */
+#undef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER
+#undef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+
+
+#ifdef CAIRO_MUTEX_IMPL_INIT
+
+/* If %CAIRO_MUTEX_IMPL_INIT is defined, we may need to initialize all
+ * static mutex'es. */
+# ifndef CAIRO_MUTEX_IMPL_INITIALIZE
+#  define CAIRO_MUTEX_IMPL_INITIALIZE() do {	\
+       if (!_cairo_mutex_initialized)	\
+           _cairo_mutex_initialize ();	\
+    } while(0)
+
+/* and make sure we implement the above */
+#  define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 1
+# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */
+
+#else /* no CAIRO_MUTEX_IMPL_INIT */
+
+/* Otherwise we probably don't need to initialize static mutex'es, */
+# ifndef CAIRO_MUTEX_IMPL_INITIALIZE
+#  define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP
+# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */
+
+/* and dynamic ones can be initialized using the static initializer. */
+# define CAIRO_MUTEX_IMPL_INIT(mutex) do {				\
+      cairo_mutex_t _tmp_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER;	\
+      memcpy (&(mutex), &_tmp_mutex, sizeof (_tmp_mutex));	\
+  } while (0)
+
+#endif /* CAIRO_MUTEX_IMPL_INIT */
+
+#ifdef CAIRO_MUTEX_IMPL_FINI
+
+/* If %CAIRO_MUTEX_IMPL_FINI is defined, we may need to finalize all
+ * static mutex'es. */
+# ifndef CAIRO_MUTEX_IMPL_FINALIZE
+#  define CAIRO_MUTEX_IMPL_FINALIZE() do {	\
+       if (_cairo_mutex_initialized)	\
+           _cairo_mutex_finalize ();	\
+    } while(0)
+
+/* and make sure we implement the above */
+#  define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 1
+# endif /* CAIRO_MUTEX_IMPL_FINALIZE */
+
+#else /* no CAIRO_MUTEX_IMPL_FINI */
+
+/* Otherwise we probably don't need to finalize static mutex'es, */
+# ifndef CAIRO_MUTEX_IMPL_FINALIZE
+#  define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP
+# endif /* CAIRO_MUTEX_IMPL_FINALIZE */
+
+/* neither do the dynamic ones. */
+# define CAIRO_MUTEX_IMPL_FINI(mutex)	CAIRO_MUTEX_IMPL_NOOP1(mutex)
+
+#endif /* CAIRO_MUTEX_IMPL_FINI */
+
+
+#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER
+#define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 0
+#endif
+#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+#define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 0
+#endif
+
+
+/* Make sure everything we want is defined */
+#ifndef CAIRO_MUTEX_IMPL_INITIALIZE
+# error "CAIRO_MUTEX_IMPL_INITIALIZE not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_FINALIZE
+# error "CAIRO_MUTEX_IMPL_FINALIZE not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_LOCK
+# error "CAIRO_MUTEX_IMPL_LOCK not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_UNLOCK
+# error "CAIRO_MUTEX_IMPL_UNLOCK not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_INIT
+# error "CAIRO_MUTEX_IMPL_INIT not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_FINI
+# error "CAIRO_MUTEX_IMPL_FINI not defined"
+#endif
+#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER
+# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined"
+#endif
+
+
+/* Public interface. */
+
+/* By default it simply uses the implementation provided.
+ * But we can provide for debugging features by overriding them */
+
+#ifndef CAIRO_MUTEX_DEBUG
+typedef cairo_mutex_impl_t cairo_mutex_t;
+#else
+# define cairo_mutex_t			cairo_mutex_impl_t
+#endif
+
+#define CAIRO_MUTEX_INITIALIZE		CAIRO_MUTEX_IMPL_INITIALIZE
+#define CAIRO_MUTEX_FINALIZE		CAIRO_MUTEX_IMPL_FINALIZE
+#define CAIRO_MUTEX_LOCK		CAIRO_MUTEX_IMPL_LOCK
+#define CAIRO_MUTEX_UNLOCK		CAIRO_MUTEX_IMPL_UNLOCK
+#define CAIRO_MUTEX_INIT		CAIRO_MUTEX_IMPL_INIT
+#define CAIRO_MUTEX_FINI		CAIRO_MUTEX_IMPL_FINI
+#define CAIRO_MUTEX_NIL_INITIALIZER	CAIRO_MUTEX_IMPL_NIL_INITIALIZER
+
+#ifndef CAIRO_MUTEX_IS_LOCKED
+# define CAIRO_MUTEX_IS_LOCKED(name) 1
+#endif
+#ifndef CAIRO_MUTEX_IS_UNLOCKED
+# define CAIRO_MUTEX_IS_UNLOCKED(name) 1
+#endif
+
+
+/* Debugging support */
+
+#ifdef CAIRO_MUTEX_DEBUG
+
+/* TODO add mutex debugging facilities here (eg deadlock detection) */
+
+#endif /* CAIRO_MUTEX_DEBUG */
+
+#endif

uppdev/plugin/cairo/lib/cairo-mutex.c

@@ -0,0 +1,82 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2007 Mathias Hasselmann
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * Contributor(s):
+ *	Mathias Hasselmann <mathias.hasselmann@gmx.de>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-mutex-private.h"
+
+#define CAIRO_MUTEX_DECLARE(mutex) cairo_mutex_t mutex = CAIRO_MUTEX_NIL_INITIALIZER;
+#include "cairo-mutex-list-private.h"
+#undef   CAIRO_MUTEX_DECLARE
+
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER || _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+
+# if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER
+#  define _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE FALSE
+# else
+#  define _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE TRUE
+# endif
+
+cairo_bool_t _cairo_mutex_initialized = _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE;
+
+# undef _CAIRO_MUTEX_IMPL_INITIALIZED_DEFAULT_VALUE
+
+#endif
+
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER
+void _cairo_mutex_initialize (void)
+{
+    if (_cairo_mutex_initialized)
+        return;
+
+    _cairo_mutex_initialized = TRUE;
+
+#define  CAIRO_MUTEX_DECLARE(mutex) CAIRO_MUTEX_INIT (mutex);
+#include "cairo-mutex-list-private.h"
+#undef   CAIRO_MUTEX_DECLARE
+}
+#endif
+
+#if _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER
+void _cairo_mutex_finalize (void)
+{
+    if (!_cairo_mutex_initialized)
+        return;
+
+    _cairo_mutex_initialized = FALSE;
+
+#define  CAIRO_MUTEX_DECLARE(mutex) CAIRO_MUTEX_FINI (mutex);
+#include "cairo-mutex-list-private.h"
+#undef   CAIRO_MUTEX_DECLARE
+}
+#endif

uppdev/plugin/cairo/lib/cairo-os2-private.h

@@ -0,0 +1,77 @@
+/* vim: set sw=4 sts=4 et cin: */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright (c) 2005-2006 netlabs.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is
+ *     Doodle <doodle@scenergy.dfmk.hu>
+ *
+ * Contributor(s):
+ *     Peter Weilbacher <mozilla@Weilbacher.org>
+ */
+
+#ifndef CAIRO_OS2_PRIVATE_H
+#define CAIRO_OS2_PRIVATE_H
+
+#include "cairo-os2.h"
+#include "cairoint.h"
+
+#define INCL_DOS
+#define INCL_DOSSEMAPHORES
+#define INCL_DOSERRORS
+#define INCL_WIN
+#define INCL_GPI
+#ifdef __WATCOMC__
+# include <os2.h>
+#else
+# include <os2emx.h>
+#endif
+
+typedef struct _cairo_os2_surface
+{
+    cairo_surface_t        base;
+
+    /* Mutex semaphore to protect private fields from concurrent access */
+    HMTX                   hmtx_use_private_fields;
+    /* Private fields: */
+    HPS                    hps_client_window;
+    HWND                   hwnd_client_window;
+    BITMAPINFO2            bitmap_info;
+    unsigned char         *pixels;
+    cairo_image_surface_t *image_surface;
+    int                    pixel_array_lend_count;
+    HEV                    hev_pixel_array_came_back;
+
+    RECTL                  rcl_dirty_area;
+    cairo_bool_t           dirty_area_present;
+
+    /* General flags: */
+    cairo_bool_t           blit_as_changes;
+} cairo_os2_surface_t;
+
+#endif /* CAIRO_OS2_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-os2.h

@@ -0,0 +1,88 @@
+/* vim: set sw=4 sts=4 et cin: */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright (c) 2005-2006 netlabs.org
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is
+ *     Doodle <doodle@scenergy.dfmk.hu>
+ *
+ * Contributor(s):
+ *     Peter Weilbacher <mozilla@Weilbacher.org>
+ */
+
+#ifndef _CAIRO_OS2_H_
+#define _CAIRO_OS2_H_
+
+#include "cairo.h"
+
+CAIRO_BEGIN_DECLS
+
+/* The OS/2 Specific Cairo API */
+
+cairo_public void
+cairo_os2_init (void);
+
+cairo_public void
+cairo_os2_fini (void);
+
+#if CAIRO_HAS_OS2_SURFACE
+
+cairo_public cairo_surface_t *
+cairo_os2_surface_create (HPS hps_client_window,
+                          int width,
+                          int height);
+
+cairo_public void
+cairo_os2_surface_set_hwnd (cairo_surface_t *surface,
+                            HWND             hwnd_client_window);
+
+cairo_public int
+cairo_os2_surface_set_size (cairo_surface_t *surface,
+                            int              new_width,
+                            int              new_height,
+                            int              timeout);
+
+cairo_public void
+cairo_os2_surface_refresh_window (cairo_surface_t *surface,
+                                  HPS              hps_begin_paint,
+                                  PRECTL           prcl_begin_paint_rect);
+
+cairo_public void
+cairo_os2_surface_set_manual_window_refresh (cairo_surface_t *surface,
+                                             cairo_bool_t     manual_refresh);
+
+cairo_public cairo_bool_t
+cairo_os2_surface_get_manual_window_refresh (cairo_surface_t *surface);
+
+#else  /* CAIRO_HAS_OS2_SURFACE */
+# error Cairo was not compiled with support for the OS/2 backend
+#endif /* CAIRO_HAS_OS2_SURFACE */
+
+CAIRO_END_DECLS
+
+#endif /* _CAIRO_OS2_H_ */

uppdev/plugin/cairo/lib/cairo-output-stream-private.h

@@ -0,0 +1,176 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Author(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ */
+
+#ifndef CAIRO_OUTPUT_STREAM_PRIVATE_H
+#define CAIRO_OUTPUT_STREAM_PRIVATE_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-types-private.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+typedef cairo_status_t (*cairo_output_stream_write_func_t) (cairo_output_stream_t *output_stream,
+							    const unsigned char   *data,
+							    unsigned int           length);
+
+typedef cairo_status_t (*cairo_output_stream_close_func_t) (cairo_output_stream_t *output_stream);
+
+struct _cairo_output_stream {
+    cairo_output_stream_write_func_t write_func;
+    cairo_output_stream_close_func_t close_func;
+    unsigned long		     position;
+    cairo_status_t		     status;
+    cairo_bool_t		     closed;
+};
+
+extern const cairo_private cairo_output_stream_t _cairo_output_stream_nil;
+
+cairo_private void
+_cairo_output_stream_init (cairo_output_stream_t            *stream,
+			   cairo_output_stream_write_func_t  write_func,
+			   cairo_output_stream_close_func_t  close_func);
+
+cairo_private cairo_status_t
+_cairo_output_stream_fini (cairo_output_stream_t *stream);
+
+
+/* We already have the following declared in cairo.h:
+
+typedef cairo_status_t (*cairo_write_func_t) (void		  *closure,
+					      const unsigned char *data,
+					      unsigned int	   length);
+*/
+typedef cairo_status_t (*cairo_close_func_t) (void *closure);
+
+
+/* This function never returns %NULL. If an error occurs (NO_MEMORY)
+ * while trying to create the output stream this function returns a
+ * valid pointer to a nil output stream.
+ *
+ * Note that even with a nil surface, the close_func callback will be
+ * called by a call to _cairo_output_stream_close or
+ * _cairo_output_stream_destroy.
+ */
+cairo_private cairo_output_stream_t *
+_cairo_output_stream_create (cairo_write_func_t		write_func,
+			     cairo_close_func_t		close_func,
+			     void			*closure);
+
+cairo_private cairo_output_stream_t *
+_cairo_output_stream_create_in_error (cairo_status_t status);
+
+/* Returns the final status value associated with this object, just
+ * before its last gasp. This final status value will capture any
+ * status failure returned by the stream's close_func as well. */
+cairo_private cairo_status_t
+_cairo_output_stream_close (cairo_output_stream_t *stream);
+
+/* Returns the final status value associated with this object, just
+ * before its last gasp. This final status value will capture any
+ * status failure returned by the stream's close_func as well. */
+cairo_private cairo_status_t
+_cairo_output_stream_destroy (cairo_output_stream_t *stream);
+
+cairo_private void
+_cairo_output_stream_write (cairo_output_stream_t *stream,
+			    const void *data, size_t length);
+
+cairo_private void
+_cairo_output_stream_write_hex_string (cairo_output_stream_t *stream,
+				       const unsigned char *data,
+				       size_t length);
+
+cairo_private void
+_cairo_output_stream_vprintf (cairo_output_stream_t *stream,
+			      const char *fmt,
+			      va_list ap) CAIRO_PRINTF_FORMAT ( 2, 0);
+
+cairo_private void
+_cairo_output_stream_printf (cairo_output_stream_t *stream,
+			     const char *fmt,
+			     ...) CAIRO_PRINTF_FORMAT (2, 3);
+
+cairo_private long
+_cairo_output_stream_get_position (cairo_output_stream_t *stream);
+
+cairo_private cairo_status_t
+_cairo_output_stream_get_status (cairo_output_stream_t *stream);
+
+/* This function never returns %NULL. If an error occurs (NO_MEMORY or
+ * WRITE_ERROR) while trying to create the output stream this function
+ * returns a valid pointer to a nil output stream.
+ *
+ * Note: Even if a nil surface is returned, the caller should still
+ * call _cairo_output_stream_destroy (or _cairo_output_stream_close at
+ * least) in order to ensure that everything is properly cleaned up.
+ */
+cairo_private cairo_output_stream_t *
+_cairo_output_stream_create_for_filename (const char *filename);
+
+/* This function never returns %NULL. If an error occurs (NO_MEMORY or
+ * WRITE_ERROR) while trying to create the output stream this function
+ * returns a valid pointer to a nil output stream.
+ *
+ * The caller still "owns" file and is responsible for calling fclose
+ * on it when finished. The stream will not do this itself.
+ */
+cairo_private cairo_output_stream_t *
+_cairo_output_stream_create_for_file (FILE *file);
+
+cairo_private cairo_output_stream_t *
+_cairo_memory_stream_create (void);
+
+cairo_private void
+_cairo_memory_stream_copy (cairo_output_stream_t *base,
+			   cairo_output_stream_t *dest);
+
+cairo_private int
+_cairo_memory_stream_length (cairo_output_stream_t *stream);
+
+cairo_private cairo_output_stream_t *
+_cairo_null_stream_create (void);
+
+/* cairo-base85-stream.c */
+cairo_private cairo_output_stream_t *
+_cairo_base85_stream_create (cairo_output_stream_t *output);
+
+/* cairo-deflate-stream.c */
+cairo_private cairo_output_stream_t *
+_cairo_deflate_stream_create (cairo_output_stream_t *output);
+
+
+#endif /* CAIRO_OUTPUT_STREAM_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-output-stream.c

@@ -0,0 +1,707 @@
+/* cairo-output-stream.c: Output stream abstraction
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Author(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ */
+
+#define _BSD_SOURCE /* for snprintf() */
+#include "cairoint.h"
+
+#include "cairo-output-stream-private.h"
+#include "cairo-compiler-private.h"
+
+#include <stdio.h>
+#include <locale.h>
+#include <ctype.h>
+#include <errno.h>
+
+/* Numbers printed with %f are printed with this number of significant
+ * digits after the decimal.
+ */
+#define SIGNIFICANT_DIGITS_AFTER_DECIMAL 6
+
+/* Numbers printed with %g are assumed to only have %CAIRO_FIXED_FRAC_BITS
+ * bits of precision available after the decimal point.
+ *
+ * FIXED_POINT_DECIMAL_DIGITS specifies the minimum number of decimal
+ * digits after the decimal point required to preserve the available
+ * precision.
+ *
+ * The conversion is:
+ *
+ * <programlisting>
+ * FIXED_POINT_DECIMAL_DIGITS = ceil( CAIRO_FIXED_FRAC_BITS * ln(2)/ln(10) )
+ * </programlisting>
+ *
+ * We can replace ceil(x) with (int)(x+1) since x will never be an
+ * integer for any likely value of %CAIRO_FIXED_FRAC_BITS.
+ */
+#define FIXED_POINT_DECIMAL_DIGITS ((int)(CAIRO_FIXED_FRAC_BITS*0.301029996 + 1))
+
+void
+_cairo_output_stream_init (cairo_output_stream_t            *stream,
+			   cairo_output_stream_write_func_t  write_func,
+			   cairo_output_stream_close_func_t  close_func)
+{
+    stream->write_func = write_func;
+    stream->close_func = close_func;
+    stream->position = 0;
+    stream->status = CAIRO_STATUS_SUCCESS;
+    stream->closed = FALSE;
+}
+
+cairo_status_t
+_cairo_output_stream_fini (cairo_output_stream_t *stream)
+{
+    return _cairo_output_stream_close (stream);
+}
+
+const cairo_output_stream_t _cairo_output_stream_nil = {
+    NULL, /* write_func */
+    NULL, /* close_func */
+    0,    /* position */
+    CAIRO_STATUS_NO_MEMORY,
+    FALSE /* closed */
+};
+
+static const cairo_output_stream_t _cairo_output_stream_nil_write_error = {
+    NULL, /* write_func */
+    NULL, /* close_func */
+    0,    /* position */
+    CAIRO_STATUS_WRITE_ERROR,
+    FALSE /* closed */
+};
+
+typedef struct _cairo_output_stream_with_closure {
+    cairo_output_stream_t	 base;
+    cairo_write_func_t		 write_func;
+    cairo_close_func_t		 close_func;
+    void			*closure;
+} cairo_output_stream_with_closure_t;
+
+
+static cairo_status_t
+closure_write (cairo_output_stream_t *stream,
+	       const unsigned char *data, unsigned int length)
+{
+    cairo_output_stream_with_closure_t *stream_with_closure =
+	(cairo_output_stream_with_closure_t *) stream;
+
+    if (stream_with_closure->write_func == NULL)
+	return CAIRO_STATUS_SUCCESS;
+
+    return stream_with_closure->write_func (stream_with_closure->closure,
+					    data, length);
+}
+
+static cairo_status_t
+closure_close (cairo_output_stream_t *stream)
+{
+    cairo_output_stream_with_closure_t *stream_with_closure =
+	(cairo_output_stream_with_closure_t *) stream;
+
+    if (stream_with_closure->close_func != NULL)
+	return stream_with_closure->close_func (stream_with_closure->closure);
+    else
+	return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_output_stream_t *
+_cairo_output_stream_create (cairo_write_func_t		write_func,
+			     cairo_close_func_t		close_func,
+			     void			*closure)
+{
+    cairo_output_stream_with_closure_t *stream;
+
+    stream = malloc (sizeof (cairo_output_stream_with_closure_t));
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base, closure_write, closure_close);
+    stream->write_func = write_func;
+    stream->close_func = close_func;
+    stream->closure = closure;
+
+    return &stream->base;
+}
+
+cairo_output_stream_t *
+_cairo_output_stream_create_in_error (cairo_status_t status)
+{
+    cairo_output_stream_t *stream;
+
+    /* check for the common ones */
+    if (status == CAIRO_STATUS_NO_MEMORY)
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    if (status == CAIRO_STATUS_WRITE_ERROR)
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error;
+
+    stream = malloc (sizeof (cairo_output_stream_t));
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (stream, NULL, NULL);
+    stream->status = status;
+
+    return stream;
+}
+
+cairo_status_t
+_cairo_output_stream_close (cairo_output_stream_t *stream)
+{
+    cairo_status_t status;
+
+    if (stream->closed)
+	return stream->status;
+
+    if (stream == &_cairo_output_stream_nil ||
+	stream == &_cairo_output_stream_nil_write_error)
+    {
+	return stream->status;
+    }
+
+    if (stream->close_func) {
+	status = stream->close_func (stream);
+	/* Don't overwrite a pre-existing status failure. */
+	if (stream->status == CAIRO_STATUS_SUCCESS)
+	    stream->status = status;
+    }
+
+    stream->closed = TRUE;
+
+    return stream->status;
+}
+
+cairo_status_t
+_cairo_output_stream_destroy (cairo_output_stream_t *stream)
+{
+    cairo_status_t status;
+
+    assert (stream != NULL);
+
+    if (stream == &_cairo_output_stream_nil ||
+	stream == &_cairo_output_stream_nil_write_error)
+    {
+	return stream->status;
+    }
+
+    status = _cairo_output_stream_fini (stream);
+    free (stream);
+
+    return status;
+}
+
+void
+_cairo_output_stream_write (cairo_output_stream_t *stream,
+			    const void *data, size_t length)
+{
+    if (length == 0)
+	return;
+
+    if (stream->status)
+	return;
+
+    stream->status = stream->write_func (stream, data, length);
+    stream->position += length;
+}
+
+void
+_cairo_output_stream_write_hex_string (cairo_output_stream_t *stream,
+				       const unsigned char *data,
+				       size_t length)
+{
+    const char hex_chars[] = "0123456789abcdef";
+    char buffer[2];
+    unsigned int i, column;
+
+    if (stream->status)
+	return;
+
+    for (i = 0, column = 0; i < length; i++, column++) {
+	if (column == 38) {
+	    _cairo_output_stream_write (stream, "\n", 1);
+	    column = 0;
+	}
+	buffer[0] = hex_chars[(data[i] >> 4) & 0x0f];
+	buffer[1] = hex_chars[data[i] & 0x0f];
+	_cairo_output_stream_write (stream, buffer, 2);
+    }
+}
+
+/* Format a double in a locale independent way and trim trailing
+ * zeros.  Based on code from Alex Larson <alexl@redhat.com>.
+ * http://mail.gnome.org/archives/gtk-devel-list/2001-October/msg00087.html
+ *
+ * The code in the patch is copyright Red Hat, Inc under the LGPL, but
+ * has been relicensed under the LGPL/MPL dual license for inclusion
+ * into cairo (see COPYING). -- Kristian Høgsberg <krh@redhat.com>
+ */
+static void
+_cairo_dtostr (char *buffer, size_t size, double d, cairo_bool_t limited_precision)
+{
+    struct lconv *locale_data;
+    const char *decimal_point;
+    int decimal_point_len;
+    char *p;
+    int decimal_len;
+    int num_zeros, decimal_digits;
+
+    /* Omit the minus sign from negative zero. */
+    if (d == 0.0)
+	d = 0.0;
+
+    locale_data = localeconv ();
+    decimal_point = locale_data->decimal_point;
+    decimal_point_len = strlen (decimal_point);
+
+    assert (decimal_point_len != 0);
+
+    if (limited_precision) {
+	snprintf (buffer, size, "%.*f", FIXED_POINT_DECIMAL_DIGITS, d);
+    } else {
+	/* Using "%f" to print numbers less than 0.1 will result in
+	 * reduced precision due to the default 6 digits after the
+	 * decimal point.
+	 *
+	 * For numbers is < 0.1, we print with maximum precision and count
+	 * the number of zeros between the decimal point and the first
+	 * significant digit. We then print the number again with the
+	 * number of decimal places that gives us the required number of
+	 * significant digits. This ensures the number is correctly
+	 * rounded.
+	 */
+	if (fabs (d) >= 0.1) {
+	    snprintf (buffer, size, "%f", d);
+	} else {
+	    snprintf (buffer, size, "%.18f", d);
+	    p = buffer;
+
+	    if (*p == '+' || *p == '-')
+		p++;
+
+	    while (isdigit (*p))
+		p++;
+
+	    if (strncmp (p, decimal_point, decimal_point_len) == 0)
+		p += decimal_point_len;
+
+	    num_zeros = 0;
+	    while (*p++ == '0')
+		num_zeros++;
+
+	    decimal_digits = num_zeros + SIGNIFICANT_DIGITS_AFTER_DECIMAL;
+
+	    if (decimal_digits < 18)
+		snprintf (buffer, size, "%.*f", decimal_digits, d);
+	}
+    }
+    p = buffer;
+
+    if (*p == '+' || *p == '-')
+	p++;
+
+    while (isdigit (*p))
+	p++;
+
+    if (strncmp (p, decimal_point, decimal_point_len) == 0) {
+	*p = '.';
+	decimal_len = strlen (p + decimal_point_len);
+	memmove (p + 1, p + decimal_point_len, decimal_len);
+	p[1 + decimal_len] = 0;
+
+	/* Remove trailing zeros and decimal point if possible. */
+	for (p = p + decimal_len; *p == '0'; p--)
+	    *p = 0;
+
+	if (*p == '.') {
+	    *p = 0;
+	    p--;
+	}
+    }
+}
+
+enum {
+    LENGTH_MODIFIER_LONG = 0x100
+};
+
+/* Here's a limited reimplementation of printf.  The reason for doing
+ * this is primarily to special case handling of doubles.  We want
+ * locale independent formatting of doubles and we want to trim
+ * trailing zeros.  This is handled by dtostr() above, and the code
+ * below handles everything else by calling snprintf() to do the
+ * formatting.  This functionality is only for internal use and we
+ * only implement the formats we actually use.
+ */
+void
+_cairo_output_stream_vprintf (cairo_output_stream_t *stream,
+			      const char *fmt, va_list ap)
+{
+#define SINGLE_FMT_BUFFER_SIZE 32
+    char buffer[512], single_fmt[SINGLE_FMT_BUFFER_SIZE];
+    int single_fmt_length;
+    char *p;
+    const char *f, *start;
+    int length_modifier, width;
+    cairo_bool_t var_width;
+
+    if (stream->status)
+	return;
+
+    f = fmt;
+    p = buffer;
+    while (*f != '\0') {
+	if (p == buffer + sizeof (buffer)) {
+	    _cairo_output_stream_write (stream, buffer, sizeof (buffer));
+	    p = buffer;
+	}
+
+	if (*f != '%') {
+	    *p++ = *f++;
+	    continue;
+	}
+
+	start = f;
+	f++;
+
+	if (*f == '0')
+	    f++;
+
+        var_width = FALSE;
+        if (*f == '*') {
+            var_width = TRUE;
+	    f++;
+        }
+
+	while (isdigit (*f))
+	    f++;
+
+	length_modifier = 0;
+	if (*f == 'l') {
+	    length_modifier = LENGTH_MODIFIER_LONG;
+	    f++;
+	}
+
+	/* The only format strings exist in the cairo implementation
+	 * itself. So there's an internal consistency problem if any
+	 * of them is larger than our format buffer size. */
+	single_fmt_length = f - start + 1;
+	assert (single_fmt_length + 1 <= SINGLE_FMT_BUFFER_SIZE);
+
+	/* Reuse the format string for this conversion. */
+	memcpy (single_fmt, start, single_fmt_length);
+	single_fmt[single_fmt_length] = '\0';
+
+	/* Flush contents of buffer before snprintf()'ing into it. */
+	_cairo_output_stream_write (stream, buffer, p - buffer);
+
+	/* We group signed and unsigned together in this switch, the
+	 * only thing that matters here is the size of the arguments,
+	 * since we're just passing the data through to sprintf(). */
+	switch (*f | length_modifier) {
+	case '%':
+	    buffer[0] = *f;
+	    buffer[1] = 0;
+	    break;
+	case 'd':
+	case 'u':
+	case 'o':
+	case 'x':
+	case 'X':
+            if (var_width) {
+                width = va_arg (ap, int);
+                snprintf (buffer, sizeof buffer,
+                          single_fmt, width, va_arg (ap, int));
+            } else {
+                snprintf (buffer, sizeof buffer, single_fmt, va_arg (ap, int));
+            }
+	    break;
+	case 'd' | LENGTH_MODIFIER_LONG:
+	case 'u' | LENGTH_MODIFIER_LONG:
+	case 'o' | LENGTH_MODIFIER_LONG:
+	case 'x' | LENGTH_MODIFIER_LONG:
+	case 'X' | LENGTH_MODIFIER_LONG:
+            if (var_width) {
+                width = va_arg (ap, int);
+                snprintf (buffer, sizeof buffer,
+                          single_fmt, width, va_arg (ap, long int));
+            } else {
+                snprintf (buffer, sizeof buffer,
+                          single_fmt, va_arg (ap, long int));
+            }
+	    break;
+	case 's':
+	    snprintf (buffer, sizeof buffer,
+		      single_fmt, va_arg (ap, const char *));
+	    break;
+	case 'f':
+	    _cairo_dtostr (buffer, sizeof buffer, va_arg (ap, double), FALSE);
+	    break;
+	case 'g':
+	    _cairo_dtostr (buffer, sizeof buffer, va_arg (ap, double), TRUE);
+	    break;
+	case 'c':
+	    buffer[0] = va_arg (ap, int);
+	    buffer[1] = 0;
+	    break;
+	default:
+	    ASSERT_NOT_REACHED;
+	}
+	p = buffer + strlen (buffer);
+	f++;
+    }
+
+    _cairo_output_stream_write (stream, buffer, p - buffer);
+}
+
+void
+_cairo_output_stream_printf (cairo_output_stream_t *stream,
+			     const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start (ap, fmt);
+
+    _cairo_output_stream_vprintf (stream, fmt, ap);
+
+    va_end (ap);
+}
+
+long
+_cairo_output_stream_get_position (cairo_output_stream_t *stream)
+{
+    return stream->position;
+}
+
+cairo_status_t
+_cairo_output_stream_get_status (cairo_output_stream_t *stream)
+{
+    return stream->status;
+}
+
+/* Maybe this should be a configure time option, so embedded targets
+ * don't have to pull in stdio. */
+
+
+typedef struct _stdio_stream {
+    cairo_output_stream_t	 base;
+    FILE			*file;
+} stdio_stream_t;
+
+static cairo_status_t
+stdio_write (cairo_output_stream_t *base,
+	     const unsigned char *data, unsigned int length)
+{
+    stdio_stream_t *stream = (stdio_stream_t *) base;
+
+    if (fwrite (data, 1, length, stream->file) != length)
+	return _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+stdio_flush (cairo_output_stream_t *base)
+{
+    stdio_stream_t *stream = (stdio_stream_t *) base;
+
+    fflush (stream->file);
+
+    if (ferror (stream->file))
+	return _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+    else
+	return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+stdio_close (cairo_output_stream_t *base)
+{
+    cairo_status_t status;
+    stdio_stream_t *stream = (stdio_stream_t *) base;
+
+    status = stdio_flush (base);
+
+    fclose (stream->file);
+
+    return status;
+}
+
+cairo_output_stream_t *
+_cairo_output_stream_create_for_file (FILE *file)
+{
+    stdio_stream_t *stream;
+
+    if (file == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_WRITE_ERROR);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error;
+    }
+
+    stream = malloc (sizeof *stream);
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base, stdio_write, stdio_flush);
+    stream->file = file;
+
+    return &stream->base;
+}
+
+cairo_output_stream_t *
+_cairo_output_stream_create_for_filename (const char *filename)
+{
+    stdio_stream_t *stream;
+    FILE *file;
+
+    if (filename == NULL)
+	return _cairo_null_stream_create ();
+
+    file = fopen (filename, "wb");
+    if (file == NULL) {
+	switch (errno) {
+	case ENOMEM:
+	    _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	    return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+	default:
+	    _cairo_error_throw (CAIRO_STATUS_WRITE_ERROR);
+	    return (cairo_output_stream_t *) &_cairo_output_stream_nil_write_error;
+	}
+    }
+
+    stream = malloc (sizeof *stream);
+    if (stream == NULL) {
+	fclose (file);
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base, stdio_write, stdio_close);
+    stream->file = file;
+
+    return &stream->base;
+}
+
+
+typedef struct _memory_stream {
+    cairo_output_stream_t	base;
+    cairo_array_t		array;
+} memory_stream_t;
+
+static cairo_status_t
+memory_write (cairo_output_stream_t *base,
+	      const unsigned char *data, unsigned int length)
+{
+    memory_stream_t *stream = (memory_stream_t *) base;
+
+    return _cairo_array_append_multiple (&stream->array, data, length);
+}
+
+static cairo_status_t
+memory_close (cairo_output_stream_t *base)
+{
+    memory_stream_t *stream = (memory_stream_t *) base;
+
+    _cairo_array_fini (&stream->array);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_output_stream_t *
+_cairo_memory_stream_create (void)
+{
+    memory_stream_t *stream;
+
+    stream = malloc (sizeof *stream);
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (&stream->base, memory_write, memory_close);
+    _cairo_array_init (&stream->array, 1);
+
+    return &stream->base;
+}
+
+void
+_cairo_memory_stream_copy (cairo_output_stream_t *base,
+			   cairo_output_stream_t *dest)
+{
+    memory_stream_t *stream = (memory_stream_t *) base;
+
+    if (dest->status)
+	return;
+
+    if (base->status) {
+	dest->status = base->status;
+	return;
+    }
+
+    _cairo_output_stream_write (dest, 
+				_cairo_array_index (&stream->array, 0),
+				_cairo_array_num_elements (&stream->array));
+}
+
+int
+_cairo_memory_stream_length (cairo_output_stream_t *base)
+{
+    memory_stream_t *stream = (memory_stream_t *) base;
+
+    return _cairo_array_num_elements (&stream->array);
+}
+
+static cairo_status_t
+null_write (cairo_output_stream_t *base,
+	    const unsigned char *data, unsigned int length)
+{
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_output_stream_t *
+_cairo_null_stream_create (void)
+{
+    cairo_output_stream_t *stream;
+
+    stream = malloc (sizeof *stream);
+    if (stream == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_output_stream_t *) &_cairo_output_stream_nil;
+    }
+
+    _cairo_output_stream_init (stream, null_write, NULL);
+
+    return stream;
+}

uppdev/plugin/cairo/lib/cairo-paginated-private.h

@@ -0,0 +1,167 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_PAGINATED_H
+#define CAIRO_PAGINATED_H
+
+#include "cairoint.h"
+
+struct _cairo_paginated_surface_backend {
+    /* Optional. Will be called once for each page.
+     *
+     * Note: With respect to the order of drawing operations as seen
+     * by the target, this call will occur before any drawing
+     * operations for the relevant page. However, with respect to the
+     * function calls as made by the user, this call will be *after*
+     * any drawing operations for the page, (that is, it will occur
+     * during the user's call to cairo_show_page or cairo_copy_page).
+     */
+    cairo_warn cairo_int_status_t
+    (*start_page)		(void			*surface);
+
+    /* Required. Will be called twice for each page, once with an
+     * argument of CAIRO_PAGINATED_MODE_ANALYZE and once with
+     * CAIRO_PAGINATED_MODE_RENDER. See more details in the
+     * documentation for _cairo_paginated_surface_create below.
+     */
+    void
+    (*set_paginated_mode)	(void			*surface,
+				 cairo_paginated_mode_t	 mode);
+
+    /* Optional. Specifies the smallest box that encloses all objects
+     * on the page. Will be called at the end of the ANALYZE phase but
+     * before the mode is changed to RENDER.
+     */
+    cairo_warn cairo_int_status_t
+    (*set_bounding_box)	(void		*surface,
+			 cairo_box_t	*bbox);
+
+    /* Optional. Indicates whether the page requires fallback images.
+     * Will be called at the end of the ANALYZE phase but before the
+     * mode is changed to RENDER.
+     */
+    cairo_warn cairo_int_status_t
+    (*set_fallback_images_required) (void	    *surface,
+				     cairo_bool_t    fallbacks_required);
+
+    cairo_bool_t
+    (*supports_fine_grained_fallbacks) (void		    *surface);
+};
+
+/* A #cairo_paginated_surface_t provides a very convenient wrapper that
+ * is well-suited for doing the analysis common to most surfaces that
+ * have paginated output, (that is, things directed at printers, or
+ * for saving content in files such as PostScript or PDF files).
+ *
+ * To use the paginated surface, you'll first need to create your
+ * 'real' surface using _cairo_surface_init() and the standard
+ * #cairo_surface_backend_t. Then you also call
+ * _cairo_paginated_surface_create which takes its own, much simpler,
+ * #cairo_paginated_surface_backend_t. You are free to return the result
+ * of _cairo_paginated_surface_create() from your public
+ * cairo_<foo>_surface_create(). The paginated backend will be careful
+ * to not let the user see that they really got a "wrapped"
+ * surface. See test-paginated-surface.c for a fairly minimal example
+ * of a paginated-using surface. That should be a reasonable example
+ * to follow.
+ *
+ * What the paginated surface does is first save all drawing
+ * operations for a page into a meta-surface. Then when the user calls
+ * cairo_show_page(), the paginated surface performs the following
+ * sequence of operations (using the backend functions passed to
+ * cairo_paginated_surface_create()):
+ *
+ * 1. Calls start_page() (if not %NULL). At this point, it is appropriate
+ *    for the target to emit any page-specific header information into
+ *    its output.
+ *
+ * 2. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_ANALYZE
+ *
+ * 3. Replays the meta-surface to the target surface, (with an
+ *    analysis surface inserted between which watches the return value
+ *    from each operation). This analysis stage is used to decide which
+ *    operations will require fallbacks.
+ *
+ * 4. Calls set_bounding_box() to provide the target surface with the
+ *    tight bounding box of the page.
+ *
+ * 5. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_RENDER
+ *
+ * 6. Replays a subset of the meta-surface operations to the target surface
+ *
+ * 7. Calls set_paginated_mode() with an argument of %CAIRO_PAGINATED_MODE_FALLBACK
+ *
+ * 8. Replays the remaining operations to an image surface, sets an
+ *    appropriate clip on the target, then paints the resulting image
+ *    surface to the target.
+ *
+ * So, the target will see drawing operations during three separate
+ * stages, (ANALYZE, RENDER and FALLBACK). During the ANALYZE phase
+ * the target should not actually perform any rendering, (for example,
+ * if performing output to a file, no output should be generated
+ * during this stage). Instead the drawing functions simply need to
+ * return %CAIRO_STATUS_SUCCESS or %CAIRO_INT_STATUS_UNSUPPORTED to
+ * indicate whether rendering would be supported. And it should do
+ * this as quickly as possible. The FALLBACK phase allows the surface
+ * to distinguish fallback images from native rendering in case they
+ * need to be handled as a special case.
+ *
+ * Note: The paginated surface layer assumes that the target surface
+ * is "blank" by default at the beginning of each page, without any
+ * need for an explicit erase operation, (as opposed to an image
+ * surface, for example, which might have uninitialized content
+ * originally). As such, it optimizes away CLEAR operations that
+ * happen at the beginning of each page---the target surface will not
+ * even see these operations.
+ */
+cairo_private cairo_surface_t *
+_cairo_paginated_surface_create (cairo_surface_t				*target,
+				 cairo_content_t				 content,
+				 int						 width,
+				 int						 height,
+				 const cairo_paginated_surface_backend_t	*backend);
+
+cairo_private cairo_surface_t *
+_cairo_paginated_surface_get_target (cairo_surface_t *surface);
+
+cairo_private cairo_bool_t
+_cairo_surface_is_paginated (cairo_surface_t *surface);
+
+cairo_private cairo_status_t
+_cairo_paginated_surface_set_size (cairo_surface_t 	*surface,
+				   int			 width,
+				   int			 height);
+
+#endif /* CAIRO_PAGINATED_H */

uppdev/plugin/cairo/lib/cairo-paginated-surface-private.h

@@ -0,0 +1,72 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_PAGINATED_SURFACE_H
+#define CAIRO_PAGINATED_SURFACE_H
+
+#include "cairo.h"
+
+#include "cairo-surface-private.h"
+
+typedef struct _cairo_paginated_surface {
+    cairo_surface_t base;
+
+    /* The target surface to hold the final result. */
+    cairo_surface_t *target;
+
+    cairo_content_t content;
+
+    /* XXX: These shouldn't actually exist. We inherit this ugliness
+     * from _cairo_meta_surface_create. The width/height parameters
+     * from that function also should not exist. The fix that will
+     * allow us to remove all of these is to fix acquire_source_image
+     * to pass an interest rectangle. */
+    int width;
+    int height;
+
+    /* Paginated-surface specific functions for the target */
+    const cairo_paginated_surface_backend_t *backend;
+
+    /* A cairo_meta_surface to record all operations. To be replayed
+     * against target, and also against image surface as necessary for
+     * fallbacks. */
+    cairo_surface_t *meta;
+
+    int page_num;
+    cairo_bool_t page_is_blank;
+
+} cairo_paginated_surface_t;
+
+#endif /* CAIRO_PAGINATED_SURFACE_H */

uppdev/plugin/cairo/lib/cairo-paginated-surface.c

@@ -0,0 +1,693 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc
+ * Copyright © 2007 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl Worth <cworth@cworth.org>
+ *	Keith Packard <keithp@keithp.com>
+ *	Adrian Johnson <ajohnson@redneon.com>
+ */
+
+/* The paginated surface layer exists to provide as much code sharing
+ * as possible for the various paginated surface backends in cairo
+ * (PostScript, PDF, etc.). See cairo-paginated-private.h for
+ * more details on how it works and how to use it.
+ */
+
+#include "cairoint.h"
+
+#include "cairo-paginated-private.h"
+#include "cairo-paginated-surface-private.h"
+#include "cairo-meta-surface-private.h"
+#include "cairo-analysis-surface-private.h"
+
+static const cairo_surface_backend_t cairo_paginated_surface_backend;
+
+static cairo_int_status_t
+_cairo_paginated_surface_show_page (void *abstract_surface);
+
+static cairo_surface_t *
+_cairo_paginated_surface_create_similar (void			*abstract_surface,
+					 cairo_content_t	 content,
+					 int			 width,
+					 int			 height)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+    return cairo_surface_create_similar (surface->target, content,
+					 width, height);
+}
+
+/* XXX The integer width,height here should be doubles and all uses updated */
+cairo_surface_t *
+_cairo_paginated_surface_create (cairo_surface_t				*target,
+				 cairo_content_t				 content,
+				 int						 width,
+				 int						 height,
+				 const cairo_paginated_surface_backend_t	*backend)
+{
+    cairo_paginated_surface_t *surface;
+    cairo_status_t status;
+
+    surface = malloc (sizeof (cairo_paginated_surface_t));
+    if (surface == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	goto FAIL;
+    }
+
+    _cairo_surface_init (&surface->base, &cairo_paginated_surface_backend,
+			 content);
+
+    /* Override surface->base.type with target's type so we don't leak
+     * evidence of the paginated wrapper out to the user. */
+    surface->base.type = cairo_surface_get_type (target);
+
+    surface->target = cairo_surface_reference (target);
+
+    surface->content = content;
+    surface->width = width;
+    surface->height = height;
+
+    surface->backend = backend;
+
+    surface->meta = _cairo_meta_surface_create (content, width, height);
+    status = cairo_surface_status (surface->meta);
+    if (status)
+	goto FAIL_CLEANUP_SURFACE;
+
+    surface->page_num = 1;
+    surface->page_is_blank = TRUE;
+
+    return &surface->base;
+
+  FAIL_CLEANUP_SURFACE:
+    cairo_surface_destroy (target);
+    free (surface);
+  FAIL:
+    return _cairo_surface_create_in_error (status);
+}
+
+cairo_bool_t
+_cairo_surface_is_paginated (cairo_surface_t *surface)
+{
+    return surface->backend == &cairo_paginated_surface_backend;
+}
+
+cairo_surface_t *
+_cairo_paginated_surface_get_target (cairo_surface_t *surface)
+{
+    cairo_paginated_surface_t *paginated_surface;
+
+    assert (_cairo_surface_is_paginated (surface));
+
+    paginated_surface = (cairo_paginated_surface_t *) surface;
+
+    return paginated_surface->target;
+}
+
+cairo_status_t
+_cairo_paginated_surface_set_size (cairo_surface_t	*surface,
+				   int			 width,
+				   int			 height)
+{
+    cairo_paginated_surface_t *paginated_surface;
+    cairo_status_t status;
+
+    assert (_cairo_surface_is_paginated (surface));
+
+    paginated_surface = (cairo_paginated_surface_t *) surface;
+
+    paginated_surface->width = width;
+    paginated_surface->height = height;
+
+    cairo_surface_destroy (paginated_surface->meta);
+    paginated_surface->meta = _cairo_meta_surface_create (paginated_surface->content,
+							  width, height);
+    status = cairo_surface_status (paginated_surface->meta);
+    if (status)
+	return _cairo_surface_set_error (surface, status);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_paginated_surface_finish (void *abstract_surface)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+    cairo_status_t status = CAIRO_STATUS_SUCCESS;
+
+    if (surface->page_is_blank == FALSE || surface->page_num == 1) {
+	cairo_surface_show_page (abstract_surface);
+	status = cairo_surface_status (abstract_surface);
+    }
+
+    if (status == CAIRO_STATUS_SUCCESS) {
+	cairo_surface_finish (surface->target);
+	status = cairo_surface_status (surface->target);
+    }
+
+    if (status == CAIRO_STATUS_SUCCESS) {
+	cairo_surface_finish (surface->meta);
+	status = cairo_surface_status (surface->meta);
+    }
+
+    cairo_surface_destroy (surface->target);
+
+    cairo_surface_destroy (surface->meta);
+
+    return status;
+}
+
+static cairo_surface_t *
+_cairo_paginated_surface_create_image_surface (void	       *abstract_surface,
+					       int		width,
+					       int		height)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+    cairo_surface_t *image;
+    cairo_font_options_t options;
+
+    image = _cairo_image_surface_create_with_content (surface->content,
+						      width,
+						      height);
+
+    cairo_surface_get_font_options (&surface->base, &options);
+    _cairo_surface_set_font_options (image, &options);
+
+    return image;
+}
+
+static cairo_status_t
+_cairo_paginated_surface_acquire_source_image (void	       *abstract_surface,
+					       cairo_image_surface_t **image_out,
+					       void		   **image_extra)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+    cairo_surface_t *image;
+    cairo_status_t status;
+    cairo_rectangle_int_t extents;
+
+    status = _cairo_surface_get_extents (surface->target, &extents);
+    if (status)
+	return status;
+
+    image = _cairo_paginated_surface_create_image_surface (surface,
+							   extents.width,
+							   extents.height);
+
+    status = _cairo_meta_surface_replay (surface->meta, image);
+    if (status) {
+	cairo_surface_destroy (image);
+	return status;
+    }
+
+    *image_out = (cairo_image_surface_t*) image;
+    *image_extra = NULL;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_paginated_surface_release_source_image (void	  *abstract_surface,
+					       cairo_image_surface_t *image,
+					       void	       *image_extra)
+{
+    cairo_surface_destroy (&image->base);
+}
+
+static cairo_int_status_t
+_paint_fallback_image (cairo_paginated_surface_t *surface,
+		       cairo_box_int_t           *box)
+{
+    double x_scale = surface->base.x_fallback_resolution / surface->target->x_resolution;
+    double y_scale = surface->base.y_fallback_resolution / surface->target->y_resolution;
+    cairo_matrix_t matrix;
+    int x, y, width, height;
+    cairo_status_t status;
+    cairo_surface_t *image;
+    cairo_pattern_t *pattern;
+
+    x = box->p1.x;
+    y = box->p1.y;
+    width = box->p2.x - x;
+    height = box->p2.y - y;
+    image = _cairo_paginated_surface_create_image_surface (surface,
+							   ceil (width  * x_scale),
+							   ceil (height * y_scale));
+    _cairo_surface_set_device_scale (image, x_scale, y_scale);
+    /* set_device_offset just sets the x0/y0 components of the matrix;
+     * so we have to do the scaling manually. */
+    cairo_surface_set_device_offset (image, -x*x_scale, -y*y_scale);
+
+    status = _cairo_meta_surface_replay (surface->meta, image);
+    if (status)
+	goto CLEANUP_IMAGE;
+
+    pattern = cairo_pattern_create_for_surface (image);
+    cairo_matrix_init (&matrix, x_scale, 0, 0, y_scale, -x*x_scale, -y*y_scale);
+    cairo_pattern_set_matrix (pattern, &matrix);
+
+    status = _cairo_surface_paint (surface->target,
+				   CAIRO_OPERATOR_SOURCE,
+				   pattern);
+
+    cairo_pattern_destroy (pattern);
+CLEANUP_IMAGE:
+    cairo_surface_destroy (image);
+
+    return status;
+}
+
+static cairo_int_status_t
+_paint_page (cairo_paginated_surface_t *surface)
+{
+    cairo_surface_t *analysis;
+    cairo_status_t status;
+    cairo_bool_t has_supported, has_page_fallback, has_finegrained_fallback;
+
+    if (surface->target->status)
+	return surface->target->status;
+
+    analysis = _cairo_analysis_surface_create (surface->target,
+					       surface->width, surface->height);
+    if (analysis->status)
+	return _cairo_surface_set_error (surface->target, analysis->status);
+
+    surface->backend->set_paginated_mode (surface->target,
+	                                  CAIRO_PAGINATED_MODE_ANALYZE);
+    status = _cairo_meta_surface_replay_and_create_regions (surface->meta,
+	                                                    analysis);
+    if (status || analysis->status) {
+	if (status == CAIRO_STATUS_SUCCESS)
+	    status = analysis->status;
+	goto FAIL;
+    }
+
+     if (surface->backend->set_bounding_box) {
+	 cairo_box_t bbox;
+
+	 _cairo_analysis_surface_get_bounding_box (analysis, &bbox);
+	 status = surface->backend->set_bounding_box (surface->target, &bbox);
+	 if (status)
+	     goto FAIL;
+     }
+
+    if (surface->backend->set_fallback_images_required) {
+	cairo_bool_t has_fallbacks = _cairo_analysis_surface_has_unsupported (analysis);
+
+	status = surface->backend->set_fallback_images_required (surface->target,
+								 has_fallbacks);
+	if (status)
+	    goto FAIL;
+    }
+
+    /* Finer grained fallbacks are currently only supported for some
+     * surface types */
+    if (surface->backend->supports_fine_grained_fallbacks != NULL &&
+	surface->backend->supports_fine_grained_fallbacks (surface->target))
+    {
+	has_supported = _cairo_analysis_surface_has_supported (analysis);
+	has_page_fallback = FALSE;
+	has_finegrained_fallback = _cairo_analysis_surface_has_unsupported (analysis);
+    }
+    else
+    {
+	if (_cairo_analysis_surface_has_unsupported (analysis)) {
+	    has_supported = FALSE;
+	    has_page_fallback = TRUE;
+	} else {
+	    has_supported = TRUE;
+	    has_page_fallback = FALSE;
+	}
+	has_finegrained_fallback = FALSE;
+    }
+
+    if (has_supported) {
+	surface->backend->set_paginated_mode (surface->target,
+		                              CAIRO_PAGINATED_MODE_RENDER);
+
+	status = _cairo_meta_surface_replay_region (surface->meta,
+						    surface->target,
+						    CAIRO_META_REGION_NATIVE);
+	assert (status != CAIRO_INT_STATUS_UNSUPPORTED);
+	if (status)
+	    goto FAIL;
+    }
+
+    if (has_page_fallback) {
+	cairo_box_int_t box;
+
+	surface->backend->set_paginated_mode (surface->target,
+		                              CAIRO_PAGINATED_MODE_FALLBACK);
+
+	box.p1.x = 0;
+	box.p1.y = 0;
+	box.p2.x = surface->width;
+	box.p2.y = surface->height;
+	status = _paint_fallback_image (surface, &box);
+	if (status)
+	    goto FAIL;
+    }
+
+    if (has_finegrained_fallback) {
+        cairo_region_t *region;
+        cairo_box_int_t *boxes;
+        int num_boxes, i;
+
+	surface->backend->set_paginated_mode (surface->target,
+		                              CAIRO_PAGINATED_MODE_FALLBACK);
+
+    /* Reset clip region before drawing the fall back images */
+	status = _cairo_surface_intersect_clip_path (surface->target,
+						     NULL,
+						     CAIRO_FILL_RULE_WINDING,
+						     CAIRO_GSTATE_TOLERANCE_DEFAULT,
+						     CAIRO_ANTIALIAS_DEFAULT);
+	if (status)
+	    goto FAIL;
+
+	region = _cairo_analysis_surface_get_unsupported (analysis);
+	status = _cairo_region_get_boxes (region, &num_boxes, &boxes);
+	if (status)
+	    goto FAIL;
+	for (i = 0; i < num_boxes; i++) {
+	    status = _paint_fallback_image (surface, &boxes[i]);
+	    if (status) {
+                _cairo_region_boxes_fini (region, boxes);
+		goto FAIL;
+            }
+	}
+        _cairo_region_boxes_fini (region, boxes);
+    }
+
+  FAIL:
+    cairo_surface_destroy (analysis);
+
+    return _cairo_surface_set_error (surface->target, status);
+}
+
+static cairo_status_t
+_start_page (cairo_paginated_surface_t *surface)
+{
+    if (surface->target->status)
+	return surface->target->status;
+
+    if (! surface->backend->start_page)
+	return CAIRO_STATUS_SUCCESS;
+
+    return _cairo_surface_set_error (surface->target,
+	                        surface->backend->start_page (surface->target));
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_copy_page (void *abstract_surface)
+{
+    cairo_status_t status;
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    status = _start_page (surface);
+    if (status)
+	return status;
+
+    status = _paint_page (surface);
+    if (status)
+	return status;
+
+    surface->page_num++;
+
+    /* XXX: It might make sense to add some suport here for calling
+     * cairo_surface_copy_page on the target surface. It would be an
+     * optimization for the output, but the interaction with image
+     * fallbacks gets tricky. For now, we just let the target see a
+     * show_page and we implement the copying by simply not destroying
+     * the meta-surface. */
+
+    cairo_surface_show_page (surface->target);
+    return cairo_surface_status (surface->target);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_show_page (void *abstract_surface)
+{
+    cairo_status_t status;
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    status = _start_page (surface);
+    if (status)
+	return status;
+
+    status = _paint_page (surface);
+    if (status)
+	return status;
+
+    cairo_surface_show_page (surface->target);
+    status = cairo_surface_status (surface->target);
+    if (status)
+	return status;
+
+    status = cairo_surface_status (surface->meta);
+    if (status)
+	return status;
+
+    cairo_surface_destroy (surface->meta);
+
+    surface->meta = _cairo_meta_surface_create (surface->content,
+						surface->width,
+						surface->height);
+    status = cairo_surface_status (surface->meta);
+    if (status)
+	return status;
+
+    surface->page_num++;
+    surface->page_is_blank = TRUE;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_intersect_clip_path (void	  *abstract_surface,
+					      cairo_path_fixed_t *path,
+					      cairo_fill_rule_t	  fill_rule,
+					      double		  tolerance,
+					      cairo_antialias_t	  antialias)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    return _cairo_surface_intersect_clip_path (surface->meta,
+					       path, fill_rule,
+					       tolerance, antialias);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_get_extents (void	              *abstract_surface,
+				      cairo_rectangle_int_t   *rectangle)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    return _cairo_surface_get_extents (surface->target, rectangle);
+}
+
+static void
+_cairo_paginated_surface_get_font_options (void                  *abstract_surface,
+					   cairo_font_options_t  *options)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    cairo_surface_get_font_options (surface->target, options);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_paint (void			*abstract_surface,
+				cairo_operator_t	 op,
+				cairo_pattern_t		*source)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    /* Optimize away erasing of nothing. */
+    if (surface->page_is_blank && op == CAIRO_OPERATOR_CLEAR)
+	return CAIRO_STATUS_SUCCESS;
+
+    surface->page_is_blank = FALSE;
+
+    return _cairo_surface_paint (surface->meta, op, source);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_mask (void		*abstract_surface,
+			       cairo_operator_t	 op,
+			       cairo_pattern_t	*source,
+			       cairo_pattern_t	*mask)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    return _cairo_surface_mask (surface->meta, op, source, mask);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_stroke (void			*abstract_surface,
+				 cairo_operator_t	 op,
+				 cairo_pattern_t	*source,
+				 cairo_path_fixed_t	*path,
+				 cairo_stroke_style_t	*style,
+				 cairo_matrix_t		*ctm,
+				 cairo_matrix_t		*ctm_inverse,
+				 double			 tolerance,
+				 cairo_antialias_t	 antialias)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    /* Optimize away erasing of nothing. */
+    if (surface->page_is_blank && op == CAIRO_OPERATOR_CLEAR)
+	return CAIRO_STATUS_SUCCESS;
+
+    surface->page_is_blank = FALSE;
+
+    return _cairo_surface_stroke (surface->meta, op, source,
+				  path, style,
+				  ctm, ctm_inverse,
+				  tolerance, antialias);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_fill (void			*abstract_surface,
+			       cairo_operator_t		 op,
+			       cairo_pattern_t		*source,
+			       cairo_path_fixed_t	*path,
+			       cairo_fill_rule_t	 fill_rule,
+			       double			 tolerance,
+			       cairo_antialias_t	 antialias)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    /* Optimize away erasing of nothing. */
+    if (surface->page_is_blank && op == CAIRO_OPERATOR_CLEAR)
+	return CAIRO_STATUS_SUCCESS;
+
+    surface->page_is_blank = FALSE;
+
+    return _cairo_surface_fill (surface->meta, op, source,
+				path, fill_rule,
+				tolerance, antialias);
+}
+
+static cairo_bool_t
+_cairo_paginated_surface_has_show_text_glyphs (void *abstract_surface)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+
+    return cairo_surface_has_show_text_glyphs (surface->target);
+}
+
+static cairo_int_status_t
+_cairo_paginated_surface_show_text_glyphs (void			    *abstract_surface,
+					  cairo_operator_t	     op,
+					  cairo_pattern_t	    *source,
+					  const char		    *utf8,
+					  int			     utf8_len,
+					  cairo_glyph_t		    *glyphs,
+					  int			     num_glyphs,
+					  const cairo_text_cluster_t *clusters,
+					  int			     num_clusters,
+					  cairo_text_cluster_flags_t cluster_flags,
+					  cairo_scaled_font_t	    *scaled_font)
+{
+    cairo_paginated_surface_t *surface = abstract_surface;
+    cairo_int_status_t status;
+
+    /* Optimize away erasing of nothing. */
+    if (surface->page_is_blank && op == CAIRO_OPERATOR_CLEAR)
+	return CAIRO_STATUS_SUCCESS;
+
+    surface->page_is_blank = FALSE;
+
+    /* Since this is a "wrapping" surface, we're calling back into
+     * _cairo_surface_show_text_glyphs from within a call to the same.
+     * Since _cairo_surface_show_text_glyphs acquires a mutex, we release
+     * and re-acquire the mutex around this nested call.
+     *
+     * Yes, this is ugly, but we consider it pragmatic as compared to
+     * adding locking code to all 18 surface-backend-specific
+     * show_glyphs functions, (which would get less testing and likely
+     * lead to bugs).
+     */
+    status = _cairo_surface_show_text_glyphs (surface->meta, op, source,
+					      utf8, utf8_len,
+					      glyphs, num_glyphs,
+					      clusters, num_clusters,
+					      cluster_flags,
+					      scaled_font);
+
+    return status;
+}
+
+static cairo_surface_t *
+_cairo_paginated_surface_snapshot (void *abstract_other)
+{
+    cairo_paginated_surface_t *other = abstract_other;
+
+    return _cairo_surface_snapshot (other->meta);
+}
+
+static const cairo_surface_backend_t cairo_paginated_surface_backend = {
+    CAIRO_INTERNAL_SURFACE_TYPE_PAGINATED,
+    _cairo_paginated_surface_create_similar,
+    _cairo_paginated_surface_finish,
+    _cairo_paginated_surface_acquire_source_image,
+    _cairo_paginated_surface_release_source_image,
+    NULL, /* acquire_dest_image */
+    NULL, /* release_dest_image */
+    NULL, /* clone_similar */
+    NULL, /* composite */
+    NULL, /* fill_rectangles */
+    NULL, /* composite_trapezoids */
+    _cairo_paginated_surface_copy_page,
+    _cairo_paginated_surface_show_page,
+    NULL, /* set_clip_region */
+    _cairo_paginated_surface_intersect_clip_path,
+    _cairo_paginated_surface_get_extents,
+    NULL, /* old_show_glyphs */
+    _cairo_paginated_surface_get_font_options,
+    NULL, /* flush */
+    NULL, /* mark_dirty_rectangle */
+    NULL, /* scaled_font_fini */
+    NULL, /* scaled_glyph_fini */
+    _cairo_paginated_surface_paint,
+    _cairo_paginated_surface_mask,
+    _cairo_paginated_surface_stroke,
+    _cairo_paginated_surface_fill,
+    NULL, /* show_glyphs */
+    _cairo_paginated_surface_snapshot,
+    NULL, /* is_similar */
+    NULL, /* reset */
+    NULL, /* fill_stroke */
+    NULL, /* create_solid_pattern_surface */
+    _cairo_paginated_surface_has_show_text_glyphs,
+    _cairo_paginated_surface_show_text_glyphs
+};

uppdev/plugin/cairo/lib/cairo-path-bounds.c

@@ -0,0 +1,174 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+typedef struct cairo_path_bounder {
+    cairo_point_t move_to_point;
+    cairo_bool_t has_move_to_point;
+    cairo_bool_t has_point;
+
+    cairo_fixed_t min_x;
+    cairo_fixed_t min_y;
+    cairo_fixed_t max_x;
+    cairo_fixed_t max_y;
+} cairo_path_bounder_t;
+
+static void
+_cairo_path_bounder_init (cairo_path_bounder_t *bounder);
+
+static void
+_cairo_path_bounder_fini (cairo_path_bounder_t *bounder);
+
+static void
+_cairo_path_bounder_add_point (cairo_path_bounder_t *bounder, cairo_point_t *point);
+
+static cairo_status_t
+_cairo_path_bounder_move_to (void *closure, cairo_point_t *point);
+
+static cairo_status_t
+_cairo_path_bounder_line_to (void *closure, cairo_point_t *point);
+
+static cairo_status_t
+_cairo_path_bounder_close_path (void *closure);
+
+static void
+_cairo_path_bounder_init (cairo_path_bounder_t *bounder)
+{
+    bounder->has_move_to_point = FALSE;
+    bounder->has_point = FALSE;
+}
+
+static void
+_cairo_path_bounder_fini (cairo_path_bounder_t *bounder)
+{
+    bounder->has_move_to_point = FALSE;
+    bounder->has_point = FALSE;
+}
+
+static void
+_cairo_path_bounder_add_point (cairo_path_bounder_t *bounder, cairo_point_t *point)
+{
+    if (bounder->has_point) {
+	if (point->x < bounder->min_x)
+	    bounder->min_x = point->x;
+
+	if (point->y < bounder->min_y)
+	    bounder->min_y = point->y;
+
+	if (point->x > bounder->max_x)
+	    bounder->max_x = point->x;
+
+	if (point->y > bounder->max_y)
+	    bounder->max_y = point->y;
+    } else {
+	bounder->min_x = point->x;
+	bounder->min_y = point->y;
+	bounder->max_x = point->x;
+	bounder->max_y = point->y;
+
+	bounder->has_point = TRUE;
+    }
+}
+
+static cairo_status_t
+_cairo_path_bounder_move_to (void *closure, cairo_point_t *point)
+{
+    cairo_path_bounder_t *bounder = closure;
+
+    bounder->move_to_point = *point;
+    bounder->has_move_to_point = TRUE;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_path_bounder_line_to (void *closure, cairo_point_t *point)
+{
+    cairo_path_bounder_t *bounder = closure;
+
+    if (bounder->has_move_to_point) {
+	_cairo_path_bounder_add_point (bounder,
+				       &bounder->move_to_point);
+	bounder->has_move_to_point = FALSE;
+    }
+
+    _cairo_path_bounder_add_point (bounder, point);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_path_bounder_close_path (void *closure)
+{
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/* XXX: Perhaps this should compute a PixRegion rather than 4 doubles */
+cairo_status_t
+_cairo_path_fixed_bounds (cairo_path_fixed_t *path,
+			  double *x1, double *y1,
+			  double *x2, double *y2,
+			  double tolerance)
+{
+    cairo_path_bounder_t bounder;
+    cairo_status_t status;
+
+    _cairo_path_bounder_init (&bounder);
+
+    status = _cairo_path_fixed_interpret_flat (path, CAIRO_DIRECTION_FORWARD,
+					       _cairo_path_bounder_move_to,
+					       _cairo_path_bounder_line_to,
+					       _cairo_path_bounder_close_path,
+					       &bounder,
+					       tolerance);
+
+    if (status == CAIRO_STATUS_SUCCESS && bounder.has_point) {
+	*x1 = _cairo_fixed_to_double (bounder.min_x);
+	*y1 = _cairo_fixed_to_double (bounder.min_y);
+	*x2 = _cairo_fixed_to_double (bounder.max_x);
+	*y2 = _cairo_fixed_to_double (bounder.max_y);
+    } else {
+	*x1 = 0.0;
+	*y1 = 0.0;
+	*x2 = 0.0;
+	*y2 = 0.0;
+    }
+
+    _cairo_path_bounder_fini (&bounder);
+
+    return status;
+}

uppdev/plugin/cairo/lib/cairo-path-fill.c

@@ -0,0 +1,239 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+#include "cairo-path-fixed-private.h"
+
+typedef struct cairo_filler {
+    double tolerance;
+    cairo_traps_t *traps;
+
+    cairo_point_t current_point;
+
+    cairo_polygon_t polygon;
+} cairo_filler_t;
+
+static void
+_cairo_filler_init (cairo_filler_t *filler, double tolerance, cairo_traps_t *traps);
+
+static void
+_cairo_filler_fini (cairo_filler_t *filler);
+
+static cairo_status_t
+_cairo_filler_move_to (void *closure, cairo_point_t *point);
+
+static cairo_status_t
+_cairo_filler_line_to (void *closure, cairo_point_t *point);
+
+static cairo_status_t
+_cairo_filler_curve_to (void *closure,
+			cairo_point_t *b,
+			cairo_point_t *c,
+			cairo_point_t *d);
+
+static cairo_status_t
+_cairo_filler_close_path (void *closure);
+
+static void
+_cairo_filler_init (cairo_filler_t *filler, double tolerance, cairo_traps_t *traps)
+{
+    filler->tolerance = tolerance;
+    filler->traps = traps;
+
+    filler->current_point.x = 0;
+    filler->current_point.y = 0;
+
+    _cairo_polygon_init (&filler->polygon);
+}
+
+static void
+_cairo_filler_fini (cairo_filler_t *filler)
+{
+    _cairo_polygon_fini (&filler->polygon);
+}
+
+static cairo_status_t
+_cairo_filler_move_to (void *closure, cairo_point_t *point)
+{
+    cairo_filler_t *filler = closure;
+    cairo_polygon_t *polygon = &filler->polygon;
+
+    _cairo_polygon_close (polygon);
+    _cairo_polygon_move_to (polygon, point);
+
+    filler->current_point = *point;
+
+    return _cairo_polygon_status (&filler->polygon);
+}
+
+static cairo_status_t
+_cairo_filler_line_to (void *closure, cairo_point_t *point)
+{
+    cairo_filler_t *filler = closure;
+    cairo_polygon_t *polygon = &filler->polygon;
+
+    _cairo_polygon_line_to (polygon, point);
+
+    filler->current_point = *point;
+
+    return _cairo_polygon_status (&filler->polygon);
+}
+
+static cairo_status_t
+_cairo_filler_curve_to (void *closure,
+			cairo_point_t *b,
+			cairo_point_t *c,
+			cairo_point_t *d)
+{
+    int i;
+    cairo_status_t status = CAIRO_STATUS_SUCCESS;
+    cairo_filler_t *filler = closure;
+    cairo_polygon_t *polygon = &filler->polygon;
+    cairo_spline_t spline;
+
+    status = _cairo_spline_init (&spline, &filler->current_point, b, c, d);
+
+    if (status == CAIRO_INT_STATUS_DEGENERATE)
+	return CAIRO_STATUS_SUCCESS;
+
+    status = _cairo_spline_decompose (&spline, filler->tolerance);
+    if (status)
+	goto CLEANUP_SPLINE;
+
+    for (i = 1; i < spline.num_points; i++)
+	_cairo_polygon_line_to (polygon, &spline.points[i]);
+
+  CLEANUP_SPLINE:
+    _cairo_spline_fini (&spline);
+
+    filler->current_point = *d;
+
+    return status;
+}
+
+static cairo_status_t
+_cairo_filler_close_path (void *closure)
+{
+    cairo_filler_t *filler = closure;
+    cairo_polygon_t *polygon = &filler->polygon;
+
+    _cairo_polygon_close (polygon);
+
+    return _cairo_polygon_status (polygon);
+}
+
+static cairo_int_status_t
+_cairo_path_fixed_fill_rectangle (cairo_path_fixed_t	*path,
+				  cairo_traps_t		*traps);
+
+cairo_status_t
+_cairo_path_fixed_fill_to_traps (cairo_path_fixed_t *path,
+				 cairo_fill_rule_t   fill_rule,
+				 double              tolerance,
+				 cairo_traps_t      *traps)
+{
+    cairo_status_t status = CAIRO_STATUS_SUCCESS;
+    cairo_filler_t filler;
+
+    /* Before we do anything else, we use a special-case filler for
+     * a device-axis aligned rectangle if possible. */
+    status = _cairo_path_fixed_fill_rectangle (path, traps);
+    if (status != CAIRO_INT_STATUS_UNSUPPORTED)
+	return status;
+
+    _cairo_filler_init (&filler, tolerance, traps);
+
+    status = _cairo_path_fixed_interpret (path,
+					  CAIRO_DIRECTION_FORWARD,
+					  _cairo_filler_move_to,
+					  _cairo_filler_line_to,
+					  _cairo_filler_curve_to,
+					  _cairo_filler_close_path,
+					  &filler);
+    if (status)
+	goto BAIL;
+
+    _cairo_polygon_close (&filler.polygon);
+    status = _cairo_polygon_status (&filler.polygon);
+    if (status)
+	goto BAIL;
+
+    status = _cairo_bentley_ottmann_tessellate_polygon (filler.traps,
+							&filler.polygon,
+							fill_rule);
+    if (status)
+	goto BAIL;
+
+BAIL:
+    _cairo_filler_fini (&filler);
+
+    return status;
+}
+
+/* This special-case filler supports only a path that describes a
+ * device-axis aligned rectangle. It exists to avoid the overhead of
+ * the general tessellator when drawing very common rectangles.
+ *
+ * If the path described anything but a device-axis aligned rectangle,
+ * this function will return %CAIRO_INT_STATUS_UNSUPPORTED.
+ */
+static cairo_int_status_t
+_cairo_path_fixed_fill_rectangle (cairo_path_fixed_t	*path,
+				  cairo_traps_t		*traps)
+{
+    if (_cairo_path_fixed_is_box (path, NULL)) {
+	cairo_point_t *p = path->buf_head.base.points;
+	cairo_point_t *top_left, *bot_right;
+
+	top_left = &p[0];
+	bot_right = &p[2];
+	if (top_left->x > bot_right->x || top_left->y > bot_right->y) {
+	    int n;
+
+	    /* not a simple cairo_rectangle() */
+	    for (n = 0; n < 4; n++) {
+		if (p[n].x <= top_left->x && p[n].y <= top_left->y)
+		    top_left = &p[n];
+		if (p[n].x >= bot_right->x && p[n].y >= bot_right->y)
+		    bot_right = &p[n];
+	    }
+	}
+
+	return _cairo_traps_tessellate_rectangle (traps, top_left, bot_right);
+    }
+
+    return CAIRO_INT_STATUS_UNSUPPORTED;
+}

uppdev/plugin/cairo/lib/cairo-path-fixed-private.h

@@ -0,0 +1,80 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#ifndef CAIRO_PATH_FIXED_PRIVATE_H
+#define CAIRO_PATH_FIXED_PRIVATE_H
+
+#include "cairo-types-private.h"
+
+enum cairo_path_op {
+    CAIRO_PATH_OP_MOVE_TO = 0,
+    CAIRO_PATH_OP_LINE_TO = 1,
+    CAIRO_PATH_OP_CURVE_TO = 2,
+    CAIRO_PATH_OP_CLOSE_PATH = 3
+};
+/* we want to make sure a single byte is used for thie enum */
+typedef char cairo_path_op_t;
+
+/* make _cairo_path_fixed fit a 512 bytes.  about 50 items */
+#define CAIRO_PATH_BUF_SIZE ((512 - 4 * sizeof (void*) - sizeof (cairo_path_buf_t)) \
+			   / (2 * sizeof (cairo_point_t) + sizeof (cairo_path_op_t)))
+
+typedef struct _cairo_path_buf {
+    struct _cairo_path_buf *next, *prev;
+    int buf_size;
+    int num_ops;
+    int num_points;
+
+    cairo_path_op_t *op;
+    cairo_point_t *points;
+} cairo_path_buf_t;
+typedef struct _cairo_path_buf_fixed {
+    cairo_path_buf_t base;
+
+    cairo_path_op_t op[CAIRO_PATH_BUF_SIZE];
+    cairo_point_t points[2 * CAIRO_PATH_BUF_SIZE];
+} cairo_path_buf_fixed_t;
+
+struct _cairo_path_fixed {
+    cairo_point_t last_move_point;
+    cairo_point_t current_point;
+    unsigned int has_current_point	: 1;
+    unsigned int has_curve_to		: 1;
+
+    cairo_path_buf_t       *buf_tail;
+    cairo_path_buf_fixed_t  buf_head;
+};
+
+#endif /* CAIRO_PATH_FIXED_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-path-fixed.c

@@ -0,0 +1,896 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ * Copyright © 2005 Red Hat, Inc.
+  *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-path-fixed-private.h"
+
+/* private functions */
+static cairo_status_t
+_cairo_path_fixed_add (cairo_path_fixed_t *path,
+		       cairo_path_op_t 	   op,
+		       cairo_point_t	  *points,
+		       int		   num_points);
+
+static void
+_cairo_path_fixed_add_buf (cairo_path_fixed_t *path,
+			   cairo_path_buf_t   *buf);
+
+static cairo_path_buf_t *
+_cairo_path_buf_create (int buf_size);
+
+static void
+_cairo_path_buf_destroy (cairo_path_buf_t *buf);
+
+static void
+_cairo_path_buf_add_op (cairo_path_buf_t *buf,
+			cairo_path_op_t   op);
+
+static void
+_cairo_path_buf_add_points (cairo_path_buf_t *buf,
+			    cairo_point_t    *points,
+			    int		      num_points);
+
+void
+_cairo_path_fixed_init (cairo_path_fixed_t *path)
+{
+    path->buf_head.base.next = NULL;
+    path->buf_head.base.prev = NULL;
+    path->buf_tail = &path->buf_head.base;
+
+    path->buf_head.base.num_ops = 0;
+    path->buf_head.base.num_points = 0;
+    path->buf_head.base.buf_size = CAIRO_PATH_BUF_SIZE;
+    path->buf_head.base.op = path->buf_head.op;
+    path->buf_head.base.points = path->buf_head.points;
+
+    path->current_point.x = 0;
+    path->current_point.y = 0;
+    path->has_current_point = FALSE;
+    path->has_curve_to = FALSE;
+    path->last_move_point = path->current_point;
+}
+
+cairo_status_t
+_cairo_path_fixed_init_copy (cairo_path_fixed_t *path,
+			     cairo_path_fixed_t *other)
+{
+    cairo_path_buf_t *buf, *other_buf;
+    unsigned int num_points, num_ops, buf_size;
+
+    _cairo_path_fixed_init (path);
+
+    path->current_point = other->current_point;
+    path->has_current_point = other->has_current_point;
+    path->has_curve_to = other->has_curve_to;
+    path->last_move_point = other->last_move_point;
+
+    path->buf_head.base.num_ops = other->buf_head.base.num_ops;
+    path->buf_head.base.num_points = other->buf_head.base.num_points;
+    path->buf_head.base.buf_size = other->buf_head.base.buf_size;
+    memcpy (path->buf_head.op, other->buf_head.base.op,
+	    other->buf_head.base.num_ops * sizeof (other->buf_head.op[0]));
+    memcpy (path->buf_head.points, other->buf_head.points,
+	    other->buf_head.base.num_points * sizeof (other->buf_head.points[0]));
+
+    num_points = num_ops = 0;
+    for (other_buf = other->buf_head.base.next;
+	 other_buf != NULL;
+	 other_buf = other_buf->next)
+    {
+	num_ops    += other_buf->num_ops;
+	num_points += other_buf->num_points;
+    }
+
+    buf_size = MAX (num_ops, (num_points + 1) / 2);
+    if (buf_size) {
+	buf = _cairo_path_buf_create (buf_size);
+	if (buf == NULL) {
+	    _cairo_path_fixed_fini (path);
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	}
+
+	for (other_buf = other->buf_head.base.next;
+	     other_buf != NULL;
+	     other_buf = other_buf->next)
+	{
+	    memcpy (buf->op + buf->num_ops, other_buf->op,
+		    other_buf->num_ops * sizeof (buf->op[0]));
+	    buf->num_ops += other_buf->num_ops;
+
+	    memcpy (buf->points + buf->num_points, other_buf->points,
+		    other_buf->num_points * sizeof (buf->points[0]));
+	    buf->num_points += other_buf->num_points;
+	}
+
+	_cairo_path_fixed_add_buf (path, buf);
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_path_fixed_t *
+_cairo_path_fixed_create (void)
+{
+    cairo_path_fixed_t	*path;
+
+    path = malloc (sizeof (cairo_path_fixed_t));
+    if (!path) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return NULL;
+    }
+
+    _cairo_path_fixed_init (path);
+    return path;
+}
+
+void
+_cairo_path_fixed_fini (cairo_path_fixed_t *path)
+{
+    cairo_path_buf_t *buf;
+
+    buf = path->buf_head.base.next;
+    while (buf) {
+	cairo_path_buf_t *this = buf;
+	buf = buf->next;
+	_cairo_path_buf_destroy (this);
+    }
+    path->buf_head.base.next = NULL;
+    path->buf_head.base.prev = NULL;
+    path->buf_tail = &path->buf_head.base;
+    path->buf_head.base.num_ops = 0;
+    path->buf_head.base.num_points = 0;
+
+    path->has_current_point = FALSE;
+    path->has_curve_to = FALSE;
+}
+
+void
+_cairo_path_fixed_destroy (cairo_path_fixed_t *path)
+{
+    _cairo_path_fixed_fini (path);
+    free (path);
+}
+
+cairo_status_t
+_cairo_path_fixed_move_to (cairo_path_fixed_t  *path,
+			   cairo_fixed_t	x,
+			   cairo_fixed_t	y)
+{
+    cairo_status_t status;
+    cairo_point_t point;
+
+    point.x = x;
+    point.y = y;
+
+    /* If the previous op was also a MOVE_TO, then just change its
+     * point rather than adding a new op. */
+    if (path->buf_tail && path->buf_tail->num_ops &&
+	path->buf_tail->op[path->buf_tail->num_ops - 1] == CAIRO_PATH_OP_MOVE_TO)
+    {
+	cairo_point_t *last_move_to_point;
+	last_move_to_point = &path->buf_tail->points[path->buf_tail->num_points - 1];
+	*last_move_to_point = point;
+    } else {
+	status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_MOVE_TO, &point, 1);
+	if (status)
+	    return status;
+    }
+
+    path->current_point = point;
+    path->has_current_point = TRUE;
+    path->last_move_point = path->current_point;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_path_fixed_new_sub_path (cairo_path_fixed_t *path)
+{
+    path->has_current_point = FALSE;
+}
+
+cairo_status_t
+_cairo_path_fixed_rel_move_to (cairo_path_fixed_t *path,
+			       cairo_fixed_t	   dx,
+			       cairo_fixed_t	   dy)
+{
+    cairo_fixed_t x, y;
+
+    if (! path->has_current_point)
+	return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT);
+
+    x = path->current_point.x + dx;
+    y = path->current_point.y + dy;
+
+    return _cairo_path_fixed_move_to (path, x, y);
+}
+
+cairo_status_t
+_cairo_path_fixed_line_to (cairo_path_fixed_t *path,
+			   cairo_fixed_t	x,
+			   cairo_fixed_t	y)
+{
+    cairo_status_t status;
+    cairo_point_t point;
+
+    point.x = x;
+    point.y = y;
+
+    /* When there is not yet a current point, the line_to operation
+     * becomes a move_to instead. Note: We have to do this by
+     * explicitly calling into _cairo_path_fixed_line_to to ensure
+     * that the last_move_point state is updated properly.
+     */
+    if (! path->has_current_point)
+	status = _cairo_path_fixed_move_to (path, point.x, point.y);
+    else
+	status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_LINE_TO, &point, 1);
+
+    if (status)
+	return status;
+
+    path->current_point = point;
+    path->has_current_point = TRUE;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_status_t
+_cairo_path_fixed_rel_line_to (cairo_path_fixed_t *path,
+			       cairo_fixed_t	   dx,
+			       cairo_fixed_t	   dy)
+{
+    cairo_fixed_t x, y;
+
+    if (! path->has_current_point)
+	return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT);
+
+    x = path->current_point.x + dx;
+    y = path->current_point.y + dy;
+
+    return _cairo_path_fixed_line_to (path, x, y);
+}
+
+cairo_status_t
+_cairo_path_fixed_curve_to (cairo_path_fixed_t	*path,
+			    cairo_fixed_t x0, cairo_fixed_t y0,
+			    cairo_fixed_t x1, cairo_fixed_t y1,
+			    cairo_fixed_t x2, cairo_fixed_t y2)
+{
+    cairo_status_t status;
+    cairo_point_t point[3];
+
+    point[0].x = x0; point[0].y = y0;
+    point[1].x = x1; point[1].y = y1;
+    point[2].x = x2; point[2].y = y2;
+
+    if (! path->has_current_point) {
+	status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_MOVE_TO,
+					&point[0], 1);
+	if (status)
+	    return status;
+    }
+
+    status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_CURVE_TO, point, 3);
+    if (status)
+	return status;
+
+    path->current_point = point[2];
+    path->has_current_point = TRUE;
+    path->has_curve_to = TRUE;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_status_t
+_cairo_path_fixed_rel_curve_to (cairo_path_fixed_t *path,
+				cairo_fixed_t dx0, cairo_fixed_t dy0,
+				cairo_fixed_t dx1, cairo_fixed_t dy1,
+				cairo_fixed_t dx2, cairo_fixed_t dy2)
+{
+    cairo_fixed_t x0, y0;
+    cairo_fixed_t x1, y1;
+    cairo_fixed_t x2, y2;
+
+    if (! path->has_current_point)
+	return _cairo_error (CAIRO_STATUS_NO_CURRENT_POINT);
+
+    x0 = path->current_point.x + dx0;
+    y0 = path->current_point.y + dy0;
+
+    x1 = path->current_point.x + dx1;
+    y1 = path->current_point.y + dy1;
+
+    x2 = path->current_point.x + dx2;
+    y2 = path->current_point.y + dy2;
+
+    return _cairo_path_fixed_curve_to (path,
+				       x0, y0,
+				       x1, y1,
+				       x2, y2);
+}
+
+cairo_status_t
+_cairo_path_fixed_close_path (cairo_path_fixed_t *path)
+{
+    cairo_status_t status;
+
+    if (! path->has_current_point)
+	return CAIRO_STATUS_SUCCESS;
+
+    status = _cairo_path_fixed_add (path, CAIRO_PATH_OP_CLOSE_PATH, NULL, 0);
+    if (status)
+	return status;
+
+    status = _cairo_path_fixed_move_to (path,
+					path->last_move_point.x,
+					path->last_move_point.y);
+    if (status)
+	return status;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_bool_t
+_cairo_path_fixed_get_current_point (cairo_path_fixed_t *path,
+				     cairo_fixed_t	*x,
+				     cairo_fixed_t	*y)
+{
+    if (! path->has_current_point)
+	return FALSE;
+
+    *x = path->current_point.x;
+    *y = path->current_point.y;
+
+    return TRUE;
+}
+
+static cairo_status_t
+_cairo_path_fixed_add (cairo_path_fixed_t *path,
+		       cairo_path_op_t	   op,
+		       cairo_point_t	  *points,
+		       int		   num_points)
+{
+    cairo_path_buf_t *buf = path->buf_tail;
+
+    if (buf->num_ops + 1 > buf->buf_size ||
+	buf->num_points + num_points > 2 * buf->buf_size)
+    {
+	buf = _cairo_path_buf_create (buf->buf_size * 2);
+	if (buf == NULL)
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+	_cairo_path_fixed_add_buf (path, buf);
+    }
+
+    _cairo_path_buf_add_op (buf, op);
+    _cairo_path_buf_add_points (buf, points, num_points);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_path_fixed_add_buf (cairo_path_fixed_t *path,
+			   cairo_path_buf_t   *buf)
+{
+    buf->next = NULL;
+    buf->prev = path->buf_tail;
+
+    path->buf_tail->next = buf;
+    path->buf_tail = buf;
+}
+
+static cairo_path_buf_t *
+_cairo_path_buf_create (int buf_size)
+{
+    cairo_path_buf_t *buf;
+
+    /* adjust buf_size to ensure that buf->points is naturally aligned */
+    buf_size += sizeof (double)
+	       - ((buf_size + sizeof (cairo_path_buf_t)) & (sizeof (double)-1));
+    buf = _cairo_malloc_ab_plus_c (buf_size,
+	                           sizeof (cairo_path_op_t) +
+				   2 * sizeof (cairo_point_t),
+				   sizeof (cairo_path_buf_t));
+    if (buf) {
+	buf->next = NULL;
+	buf->prev = NULL;
+	buf->num_ops = 0;
+	buf->num_points = 0;
+	buf->buf_size = buf_size;
+
+	buf->op = (cairo_path_op_t *) (buf + 1);
+	buf->points = (cairo_point_t *) (buf->op + buf_size);
+    }
+
+    return buf;
+}
+
+static void
+_cairo_path_buf_destroy (cairo_path_buf_t *buf)
+{
+    free (buf);
+}
+
+static void
+_cairo_path_buf_add_op (cairo_path_buf_t *buf,
+			cairo_path_op_t	  op)
+{
+    buf->op[buf->num_ops++] = op;
+}
+
+static void
+_cairo_path_buf_add_points (cairo_path_buf_t *buf,
+			    cairo_point_t    *points,
+			    int		      num_points)
+{
+    int i;
+
+    for (i=0; i < num_points; i++) {
+	buf->points[buf->num_points++] = points[i];
+    }
+}
+
+static int const num_args[] =
+{
+    1, /* cairo_path_move_to */
+    1, /* cairo_path_op_line_to */
+    3, /* cairo_path_op_curve_to */
+    0, /* cairo_path_op_close_path */
+};
+
+cairo_status_t
+_cairo_path_fixed_interpret (const cairo_path_fixed_t		*path,
+			     cairo_direction_t			 dir,
+			     cairo_path_fixed_move_to_func_t	*move_to,
+			     cairo_path_fixed_line_to_func_t	*line_to,
+			     cairo_path_fixed_curve_to_func_t	*curve_to,
+			     cairo_path_fixed_close_path_func_t	*close_path,
+			     void				*closure)
+{
+    cairo_status_t status;
+    const cairo_path_buf_t *buf;
+    cairo_path_op_t op;
+    cairo_bool_t forward = (dir == CAIRO_DIRECTION_FORWARD);
+    int step = forward ? 1 : -1;
+
+    for (buf = forward ? &path->buf_head.base : path->buf_tail;
+	 buf;
+	 buf = forward ? buf->next : buf->prev)
+    {
+	cairo_point_t *points;
+	int start, stop, i;
+	if (forward) {
+	    start = 0;
+	    stop = buf->num_ops;
+	    points = buf->points;
+	} else {
+	    start = buf->num_ops - 1;
+	    stop = -1;
+	    points = buf->points + buf->num_points;
+	}
+
+	for (i=start; i != stop; i += step) {
+	    op = buf->op[i];
+
+	    if (! forward) {
+		points -= num_args[(int) op];
+	    }
+
+	    switch (op) {
+	    case CAIRO_PATH_OP_MOVE_TO:
+		status = (*move_to) (closure, &points[0]);
+		break;
+	    case CAIRO_PATH_OP_LINE_TO:
+		status = (*line_to) (closure, &points[0]);
+		break;
+	    case CAIRO_PATH_OP_CURVE_TO:
+		status = (*curve_to) (closure, &points[0], &points[1], &points[2]);
+		break;
+	    case CAIRO_PATH_OP_CLOSE_PATH:
+	    default:
+		status = (*close_path) (closure);
+		break;
+	    }
+	    if (status)
+		return status;
+
+	    if (forward) {
+		points += num_args[(int) op];
+	    }
+
+	}
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_append_move_to (void		 *closure,
+	  cairo_point_t  *point)
+{
+    cairo_path_fixed_t *path = (cairo_path_fixed_t *) closure;
+    return _cairo_path_fixed_move_to (path, point->x, point->y);
+}
+
+static cairo_status_t
+_append_line_to (void		 *closure,
+	  cairo_point_t *point)
+{
+    cairo_path_fixed_t *path = (cairo_path_fixed_t *) closure;
+    return _cairo_path_fixed_line_to (path, point->x, point->y);
+}
+
+static cairo_status_t
+_append_curve_to (void	  *closure,
+	   cairo_point_t *p0,
+	   cairo_point_t *p1,
+	   cairo_point_t *p2)
+{
+    cairo_path_fixed_t *path = (cairo_path_fixed_t *) closure;
+    return _cairo_path_fixed_curve_to (path, p0->x, p0->y, p1->x, p1->y, p2->x, p2->y);
+}
+
+static cairo_status_t
+_append_close_path (void *closure)
+{
+    cairo_path_fixed_t *path = (cairo_path_fixed_t *) closure;
+    return _cairo_path_fixed_close_path (path);
+}
+
+cairo_private cairo_status_t
+_cairo_path_fixed_append (cairo_path_fixed_t		  *path,
+			  const cairo_path_fixed_t	  *other,
+			  cairo_direction_t		   dir)
+{
+    return _cairo_path_fixed_interpret (other, dir,
+					_append_move_to,
+					_append_line_to,
+					_append_curve_to,
+					_append_close_path,
+					path);
+}
+
+static void
+_cairo_path_fixed_offset_and_scale (cairo_path_fixed_t *path,
+				    cairo_fixed_t offx,
+				    cairo_fixed_t offy,
+				    cairo_fixed_t scalex,
+				    cairo_fixed_t scaley)
+{
+    cairo_path_buf_t *buf = &path->buf_head.base;
+    int i;
+
+    while (buf) {
+	 for (i = 0; i < buf->num_points; i++) {
+	     if (scalex != CAIRO_FIXED_ONE)
+		 buf->points[i].x = _cairo_fixed_mul (buf->points[i].x, scalex);
+	     buf->points[i].x += offx;
+
+	     if (scaley != CAIRO_FIXED_ONE)
+		 buf->points[i].y = _cairo_fixed_mul (buf->points[i].y, scaley);
+	     buf->points[i].y += offy;
+	 }
+
+	 buf = buf->next;
+    }
+}
+
+/**
+ * _cairo_path_fixed_transform:
+ * @path: a #cairo_path_fixed_t to be transformed
+ * @matrix: a #cairo_matrix_t
+ *
+ * Transform the fixed-point path according to the given matrix.
+ * There is a fast path for the case where @matrix has no rotation
+ * or shear.
+ **/
+void
+_cairo_path_fixed_transform (cairo_path_fixed_t	*path,
+			     cairo_matrix_t     *matrix)
+{
+    cairo_path_buf_t *buf;
+    int i;
+    double dx, dy;
+
+    if (matrix->yx == 0.0 && matrix->xy == 0.0) {
+	/* Fast path for the common case of scale+transform */
+	_cairo_path_fixed_offset_and_scale (path,
+					    _cairo_fixed_from_double (matrix->x0),
+					    _cairo_fixed_from_double (matrix->y0),
+					    _cairo_fixed_from_double (matrix->xx),
+					    _cairo_fixed_from_double (matrix->yy));
+	return;
+    }
+
+    buf = &path->buf_head.base;
+    while (buf) {
+	 for (i = 0; i < buf->num_points; i++) {
+	    dx = _cairo_fixed_to_double (buf->points[i].x);
+	    dy = _cairo_fixed_to_double (buf->points[i].y);
+
+	    cairo_matrix_transform_point (matrix, &dx, &dy);
+
+	    buf->points[i].x = _cairo_fixed_from_double (dx);
+	    buf->points[i].y = _cairo_fixed_from_double (dy);
+	 }
+
+	 buf = buf->next;
+    }
+}
+
+cairo_bool_t
+_cairo_path_fixed_is_equal (cairo_path_fixed_t *path,
+			    cairo_path_fixed_t *other)
+{
+    cairo_path_buf_t *path_buf, *other_buf;
+
+    if (path->current_point.x != other->current_point.x ||
+	path->current_point.y != other->current_point.y ||
+	path->has_current_point != other->has_current_point ||
+	path->has_curve_to != other->has_curve_to ||
+	path->last_move_point.x != other->last_move_point.x ||
+	path->last_move_point.y != other->last_move_point.y)
+	return FALSE;
+
+    other_buf = &other->buf_head.base;
+    for (path_buf = &path->buf_head.base;
+	 path_buf != NULL;
+	 path_buf = path_buf->next)
+    {
+	if (other_buf == NULL ||
+	    path_buf->num_ops != other_buf->num_ops ||
+	    path_buf->num_points != other_buf->num_points ||
+	    memcmp (path_buf->op, other_buf->op,
+		    sizeof (cairo_path_op_t) * path_buf->num_ops) != 0 ||
+	    memcmp (path_buf->points, other_buf->points,
+		    sizeof (cairo_point_t) * path_buf->num_points) != 0)
+	{
+	    return FALSE;
+	}
+	other_buf = other_buf->next;
+    }
+    return TRUE;
+}
+
+/* Closure for path flattening */
+typedef struct cairo_path_flattener {
+    double tolerance;
+    cairo_point_t current_point;
+    cairo_path_fixed_move_to_func_t	*move_to;
+    cairo_path_fixed_line_to_func_t	*line_to;
+    cairo_path_fixed_close_path_func_t	*close_path;
+    void *closure;
+} cpf_t;
+
+static cairo_status_t
+_cpf_move_to (void *closure, cairo_point_t *point)
+{
+    cpf_t *cpf = closure;
+
+    cpf->current_point = *point;
+
+    return cpf->move_to (cpf->closure, point);
+}
+
+static cairo_status_t
+_cpf_line_to (void *closure, cairo_point_t *point)
+{
+    cpf_t *cpf = closure;
+
+    cpf->current_point = *point;
+
+    return cpf->line_to (cpf->closure, point);
+}
+
+static cairo_status_t
+_cpf_curve_to (void		*closure,
+	       cairo_point_t	*p1,
+	       cairo_point_t	*p2,
+	       cairo_point_t	*p3)
+{
+    cpf_t *cpf = closure;
+    cairo_status_t status;
+    cairo_spline_t spline;
+    int i;
+
+    cairo_point_t *p0 = &cpf->current_point;
+
+    status = _cairo_spline_init (&spline, p0, p1, p2, p3);
+    if (status == CAIRO_INT_STATUS_DEGENERATE)
+	return CAIRO_STATUS_SUCCESS;
+
+    status = _cairo_spline_decompose (&spline, cpf->tolerance);
+    if (status)
+      goto out;
+
+    for (i=1; i < spline.num_points; i++) {
+	status = cpf->line_to (cpf->closure, &spline.points[i]);
+	if (status)
+	    goto out;
+    }
+
+    cpf->current_point = *p3;
+
+    status = CAIRO_STATUS_SUCCESS;
+
+ out:
+    _cairo_spline_fini (&spline);
+    return status;
+}
+
+static cairo_status_t
+_cpf_close_path (void *closure)
+{
+    cpf_t *cpf = closure;
+
+    return cpf->close_path (cpf->closure);
+}
+
+
+cairo_status_t
+_cairo_path_fixed_interpret_flat (const cairo_path_fixed_t		*path,
+				  cairo_direction_t			dir,
+				  cairo_path_fixed_move_to_func_t	*move_to,
+				  cairo_path_fixed_line_to_func_t	*line_to,
+				  cairo_path_fixed_close_path_func_t	*close_path,
+				  void					*closure,
+				  double				tolerance)
+{
+    cpf_t flattener;
+
+    flattener.tolerance = tolerance;
+    flattener.move_to = move_to;
+    flattener.line_to = line_to;
+    flattener.close_path = close_path;
+    flattener.closure = closure;
+    return _cairo_path_fixed_interpret (path, dir,
+					_cpf_move_to,
+					_cpf_line_to,
+					_cpf_curve_to,
+					_cpf_close_path,
+					&flattener);
+}
+
+cairo_bool_t
+_cairo_path_fixed_is_empty (cairo_path_fixed_t *path)
+{
+    if (path->buf_head.base.num_ops == 0)
+	return TRUE;
+
+    return FALSE;
+}
+
+/**
+ * Check whether the given path contains a single rectangle.
+ */
+cairo_bool_t
+_cairo_path_fixed_is_box (cairo_path_fixed_t *path,
+			  cairo_box_t *box)
+{
+    cairo_path_buf_t *buf = &path->buf_head.base;
+
+    /* We can't have more than one buf for this check */
+    if (buf->next != NULL)
+	return FALSE;
+
+    /* Do we have the right number of ops? */
+    if (buf->num_ops != 5 && buf->num_ops != 6)
+	return FALSE;
+
+    /* Check whether the ops are those that would be used for a rectangle */
+    if (buf->op[0] != CAIRO_PATH_OP_MOVE_TO ||
+	buf->op[1] != CAIRO_PATH_OP_LINE_TO ||
+	buf->op[2] != CAIRO_PATH_OP_LINE_TO ||
+	buf->op[3] != CAIRO_PATH_OP_LINE_TO)
+    {
+	return FALSE;
+    }
+
+    /* Now, there are choices. The rectangle might end with a LINE_TO
+     * (to the original point), but this isn't required. If it
+     * doesn't, then it must end with a CLOSE_PATH. */
+    if (buf->op[4] == CAIRO_PATH_OP_LINE_TO) {
+	if (buf->points[4].x != buf->points[0].x ||
+	    buf->points[4].y != buf->points[0].y)
+	    return FALSE;
+    } else if (buf->op[4] != CAIRO_PATH_OP_CLOSE_PATH) {
+	return FALSE;
+    }
+
+    if (buf->num_ops == 6) {
+	/* A trailing CLOSE_PATH or MOVE_TO is ok */
+	if (buf->op[5] != CAIRO_PATH_OP_MOVE_TO &&
+	    buf->op[5] != CAIRO_PATH_OP_CLOSE_PATH)
+	    return FALSE;
+    }
+
+    /* Ok, we may have a box, if the points line up */
+    if (buf->points[0].y == buf->points[1].y &&
+	buf->points[1].x == buf->points[2].x &&
+	buf->points[2].y == buf->points[3].y &&
+	buf->points[3].x == buf->points[0].x)
+    {
+	if (box) {
+	    box->p1 = buf->points[0];
+	    box->p2 = buf->points[2];
+	}
+	return TRUE;
+    }
+
+    if (buf->points[0].x == buf->points[1].x &&
+	buf->points[1].y == buf->points[2].y &&
+	buf->points[2].x == buf->points[3].x &&
+	buf->points[3].y == buf->points[0].y)
+    {
+	if (box) {
+	    box->p1 = buf->points[0];
+	    box->p2 = buf->points[2];
+	}
+	return TRUE;
+    }
+
+    return FALSE;
+}
+
+/*
+ * Check whether the given path contains a single rectangle
+ * that is logically equivalent to:
+ * <informalexample><programlisting>
+ *   cairo_move_to (cr, x, y);
+ *   cairo_rel_line_to (cr, width, 0);
+ *   cairo_rel_line_to (cr, 0, height);
+ *   cairo_rel_line_to (cr, -width, 0);
+ *   cairo_close_path (cr);
+ * </programlisting></informalexample>
+ */
+cairo_bool_t
+_cairo_path_fixed_is_rectangle (cairo_path_fixed_t *path,
+				cairo_box_t        *box)
+{
+    cairo_path_buf_t *buf = &path->buf_head.base;
+
+    if (!_cairo_path_fixed_is_box (path, box))
+	return FALSE;
+
+    if (buf->points[0].y == buf->points[1].y)
+	return TRUE;
+
+    return FALSE;
+}

uppdev/plugin/cairo/lib/cairo-path-private.h

@@ -0,0 +1,57 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#ifndef CAIRO_PATH_PRIVATE_H
+#define CAIRO_PATH_PRIVATE_H
+
+#include "cairoint.h"
+
+cairo_private cairo_path_t *
+_cairo_path_create (cairo_path_fixed_t *path,
+		    cairo_gstate_t     *gstate);
+
+cairo_private cairo_path_t *
+_cairo_path_create_flat (cairo_path_fixed_t *path,
+			 cairo_gstate_t     *gstate);
+
+cairo_private cairo_path_t *
+_cairo_path_create_in_error (cairo_status_t status);
+
+cairo_private cairo_status_t
+_cairo_path_append_to_context (const cairo_path_t	*path,
+			       cairo_t			*cr);
+
+#endif /* CAIRO_PATH_DATA_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-path.c

@@ -0,0 +1,482 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ * Copyright © 2006 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-path-private.h"
+#include "cairo-path-fixed-private.h"
+
+static const cairo_path_t _cairo_path_nil = { CAIRO_STATUS_NO_MEMORY, NULL, 0 };
+
+/* Closure for path interpretation. */
+typedef struct cairo_path_count {
+    int count;
+    cairo_point_t current_point;
+} cpc_t;
+
+static cairo_status_t
+_cpc_move_to (void *closure, cairo_point_t *point)
+{
+    cpc_t *cpc = closure;
+
+    cpc->count += 2;
+
+    cpc->current_point = *point;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpc_line_to (void *closure, cairo_point_t *point)
+{
+    cpc_t *cpc = closure;
+
+    cpc->count += 2;
+
+    cpc->current_point = *point;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpc_curve_to (void		*closure,
+	       cairo_point_t	*p1,
+	       cairo_point_t	*p2,
+	       cairo_point_t	*p3)
+{
+    cpc_t *cpc = closure;
+
+    cpc->count += 4;
+
+    cpc->current_point = *p3;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpc_close_path (void *closure)
+{
+    cpc_t *cpc = closure;
+
+    cpc->count += 1;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static int
+_cairo_path_count (cairo_path_t		*path,
+		   cairo_path_fixed_t	*path_fixed,
+		   double		 tolerance,
+		   cairo_bool_t		 flatten)
+{
+    cairo_status_t status;
+    cpc_t cpc;
+
+    cpc.count = 0;
+    cpc.current_point.x = 0;
+    cpc.current_point.y = 0;
+
+    if (flatten) {
+	status = _cairo_path_fixed_interpret_flat (path_fixed,
+						   CAIRO_DIRECTION_FORWARD,
+						   _cpc_move_to,
+						   _cpc_line_to,
+						   _cpc_close_path,
+						   &cpc,
+						   tolerance);
+    } else {
+	status = _cairo_path_fixed_interpret (path_fixed,
+					      CAIRO_DIRECTION_FORWARD,
+					      _cpc_move_to,
+					      _cpc_line_to,
+					      _cpc_curve_to,
+					      _cpc_close_path,
+					      &cpc);
+    }
+
+    if (status)
+	return -1;
+
+    return cpc.count;
+}
+
+/* Closure for path interpretation. */
+typedef struct cairo_path_populate {
+    cairo_path_data_t *data;
+    cairo_gstate_t    *gstate;
+    cairo_point_t      current_point;
+} cpp_t;
+
+static cairo_status_t
+_cpp_move_to (void *closure, cairo_point_t *point)
+{
+    cpp_t *cpp = closure;
+    cairo_path_data_t *data = cpp->data;
+    double x, y;
+
+    x = _cairo_fixed_to_double (point->x);
+    y = _cairo_fixed_to_double (point->y);
+
+    _cairo_gstate_backend_to_user (cpp->gstate, &x, &y);
+
+    data->header.type = CAIRO_PATH_MOVE_TO;
+    data->header.length = 2;
+
+    /* We index from 1 to leave room for data->header */
+    data[1].point.x = x;
+    data[1].point.y = y;
+
+    cpp->data += data->header.length;
+
+    cpp->current_point = *point;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpp_line_to (void *closure, cairo_point_t *point)
+{
+    cpp_t *cpp = closure;
+    cairo_path_data_t *data = cpp->data;
+    double x, y;
+
+    x = _cairo_fixed_to_double (point->x);
+    y = _cairo_fixed_to_double (point->y);
+
+    _cairo_gstate_backend_to_user (cpp->gstate, &x, &y);
+
+    data->header.type = CAIRO_PATH_LINE_TO;
+    data->header.length = 2;
+
+    /* We index from 1 to leave room for data->header */
+    data[1].point.x = x;
+    data[1].point.y = y;
+
+    cpp->data += data->header.length;
+
+    cpp->current_point = *point;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpp_curve_to (void		*closure,
+	       cairo_point_t	*p1,
+	       cairo_point_t	*p2,
+	       cairo_point_t	*p3)
+{
+    cpp_t *cpp = closure;
+    cairo_path_data_t *data = cpp->data;
+    double x1, y1;
+    double x2, y2;
+    double x3, y3;
+
+    x1 = _cairo_fixed_to_double (p1->x);
+    y1 = _cairo_fixed_to_double (p1->y);
+    _cairo_gstate_backend_to_user (cpp->gstate, &x1, &y1);
+
+    x2 = _cairo_fixed_to_double (p2->x);
+    y2 = _cairo_fixed_to_double (p2->y);
+    _cairo_gstate_backend_to_user (cpp->gstate, &x2, &y2);
+
+    x3 = _cairo_fixed_to_double (p3->x);
+    y3 = _cairo_fixed_to_double (p3->y);
+    _cairo_gstate_backend_to_user (cpp->gstate, &x3, &y3);
+
+    data->header.type = CAIRO_PATH_CURVE_TO;
+    data->header.length = 4;
+
+    /* We index from 1 to leave room for data->header */
+    data[1].point.x = x1;
+    data[1].point.y = y1;
+
+    data[2].point.x = x2;
+    data[2].point.y = y2;
+
+    data[3].point.x = x3;
+    data[3].point.y = y3;
+
+    cpp->data += data->header.length;
+
+    cpp->current_point = *p3;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cpp_close_path (void *closure)
+{
+    cpp_t *cpp = closure;
+    cairo_path_data_t *data = cpp->data;
+
+    data->header.type = CAIRO_PATH_CLOSE_PATH;
+    data->header.length = 1;
+
+    cpp->data += data->header.length;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_path_populate (cairo_path_t		*path,
+		      cairo_path_fixed_t	*path_fixed,
+		      cairo_gstate_t		*gstate,
+		      cairo_bool_t		 flatten)
+{
+    cairo_status_t status;
+    cpp_t cpp;
+
+    cpp.data = path->data;
+    cpp.gstate = gstate;
+    cpp.current_point.x = 0;
+    cpp.current_point.y = 0;
+
+    if (flatten) {
+	double tolerance = _cairo_gstate_get_tolerance (gstate);
+	status = _cairo_path_fixed_interpret_flat (path_fixed,
+						   CAIRO_DIRECTION_FORWARD,
+						   _cpp_move_to,
+						   _cpp_line_to,
+						   _cpp_close_path,
+						   &cpp,
+						   tolerance);
+    } else {
+	status = _cairo_path_fixed_interpret (path_fixed,
+				          CAIRO_DIRECTION_FORWARD,
+					  _cpp_move_to,
+					  _cpp_line_to,
+					  _cpp_curve_to,
+					  _cpp_close_path,
+					  &cpp);
+    }
+
+    if (status)
+	return status;
+
+    /* Sanity check the count */
+    assert (cpp.data - path->data == path->num_data);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_path_t *
+_cairo_path_create_in_error (cairo_status_t status)
+{
+    cairo_path_t *path;
+
+    /* special case NO_MEMORY so as to avoid allocations */
+    if (status == CAIRO_STATUS_NO_MEMORY)
+	return (cairo_path_t*) &_cairo_path_nil;
+
+    path = malloc (sizeof (cairo_path_t));
+    if (path == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_path_t*) &_cairo_path_nil;
+    }
+
+    path->num_data = 0;
+    path->data = NULL;
+    path->status = status;
+
+    return path;
+}
+
+static cairo_path_t *
+_cairo_path_create_internal (cairo_path_fixed_t *path_fixed,
+			     cairo_gstate_t     *gstate,
+			     cairo_bool_t	 flatten)
+{
+    cairo_path_t *path;
+
+    path = malloc (sizeof (cairo_path_t));
+    if (path == NULL) {
+	_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_path_t*) &_cairo_path_nil;
+    }
+
+    path->num_data = _cairo_path_count (path, path_fixed,
+					_cairo_gstate_get_tolerance (gstate),
+					flatten);
+    if (path->num_data < 0) {
+	free (path);
+	return (cairo_path_t*) &_cairo_path_nil;
+    }
+
+    if (path->num_data) {
+	path->data = _cairo_malloc_ab (path->num_data,
+	       	                       sizeof (cairo_path_data_t));
+	if (path->data == NULL) {
+	    free (path);
+	    _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
+	    return (cairo_path_t*) &_cairo_path_nil;
+	}
+
+	path->status = _cairo_path_populate (path, path_fixed,
+					     gstate, flatten);
+    } else {
+	path->data = NULL;
+	path->status = CAIRO_STATUS_SUCCESS;
+    }
+
+    return path;
+}
+
+/**
+ * cairo_path_destroy:
+ * @path: a path previously returned by either cairo_copy_path() or
+ * cairo_copy_path_flat().
+ *
+ * Immediately releases all memory associated with @path. After a call
+ * to cairo_path_destroy() the @path pointer is no longer valid and
+ * should not be used further.
+ *
+ * Note: cairo_path_destroy() should only be called with a
+ * pointer to a #cairo_path_t returned by a cairo function. Any path
+ * that is created manually (ie. outside of cairo) should be destroyed
+ * manually as well.
+ **/
+void
+cairo_path_destroy (cairo_path_t *path)
+{
+    if (path == NULL || path == &_cairo_path_nil)
+	return;
+
+    if (path->data)
+	free (path->data);
+
+    free (path);
+}
+
+/**
+ * _cairo_path_create:
+ * @path: a fixed-point, device-space path to be converted and copied
+ * @gstate: the current graphics state
+ *
+ * Creates a user-space #cairo_path_t copy of the given device-space
+ * @path. The @gstate parameter provides the inverse CTM for the
+ * conversion.
+ *
+ * Return value: the new copy of the path. If there is insufficient
+ * memory a pointer to a special static nil #cairo_path_t will be
+ * returned instead with status==%CAIRO_STATUS_NO_MEMORY and
+ * data==%NULL.
+ **/
+cairo_path_t *
+_cairo_path_create (cairo_path_fixed_t *path,
+		    cairo_gstate_t     *gstate)
+{
+    return _cairo_path_create_internal (path, gstate, FALSE);
+}
+
+/**
+ * _cairo_path_create_flat:
+ * @path: a fixed-point, device-space path to be flattened, converted and copied
+ * @gstate: the current graphics state
+ *
+ * Creates a flattened, user-space #cairo_path_t copy of the given
+ * device-space @path. The @gstate parameter provide the inverse CTM
+ * for the conversion, as well as the tolerance value to control the
+ * accuracy of the flattening.
+ *
+ * Return value: the flattened copy of the path. If there is insufficient
+ * memory a pointer to a special static nil #cairo_path_t will be
+ * returned instead with status==%CAIRO_STATUS_NO_MEMORY and
+ * data==%NULL.
+ **/
+cairo_path_t *
+_cairo_path_create_flat (cairo_path_fixed_t *path,
+			 cairo_gstate_t     *gstate)
+{
+    return _cairo_path_create_internal (path, gstate, TRUE);
+}
+
+/**
+ * _cairo_path_append_to_context:
+ * @path: the path data to be appended
+ * @cr: a cairo context
+ *
+ * Append @path to the current path within @cr.
+ *
+ * Return value: %CAIRO_STATUS_INVALID_PATH_DATA if the data in @path
+ * is invalid, and %CAIRO_STATUS_SUCCESS otherwise.
+ **/
+cairo_status_t
+_cairo_path_append_to_context (const cairo_path_t	*path,
+			       cairo_t			*cr)
+{
+    int i;
+    cairo_path_data_t *p;
+    cairo_status_t status;
+
+    for (i=0; i < path->num_data; i += path->data[i].header.length) {
+	p = &path->data[i];
+	switch (p->header.type) {
+	case CAIRO_PATH_MOVE_TO:
+	    if (p->header.length < 2)
+		return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA);
+	    cairo_move_to (cr,
+			   p[1].point.x, p[1].point.y);
+	    break;
+	case CAIRO_PATH_LINE_TO:
+	    if (p->header.length < 2)
+		return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA);
+	    cairo_line_to (cr,
+			   p[1].point.x, p[1].point.y);
+	    break;
+	case CAIRO_PATH_CURVE_TO:
+	    if (p->header.length < 4)
+		return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA);
+	    cairo_curve_to (cr,
+			    p[1].point.x, p[1].point.y,
+			    p[2].point.x, p[2].point.y,
+			    p[3].point.x, p[3].point.y);
+	    break;
+	case CAIRO_PATH_CLOSE_PATH:
+	    if (p->header.length < 1)
+		return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA);
+	    cairo_close_path (cr);
+	    break;
+	default:
+	    return _cairo_error (CAIRO_STATUS_INVALID_PATH_DATA);
+	}
+
+	status = cairo_status (cr);
+	if (status)
+	    return status;
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}

uppdev/plugin/cairo/lib/cairo-pdf-operators-private.h

@@ -0,0 +1,165 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc
+ * Copyright © 2006 Red Hat, Inc
+ * Copyright © 2007 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ *	Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#ifndef CAIRO_PDF_OPERATORS_H
+#define CAIRO_PDF_OPERATORS_H
+
+#include "cairo-compiler-private.h"
+#include "cairo-types-private.h"
+
+/* The glyph buffer size is based on the expected maximum glyphs in a
+ * line so that an entire line can be emitted in as one string. If the
+ * glyphs in a line exceeds this size the only downside is the slight
+ * overhead of emitting two strings.
+ */
+#define PDF_GLYPH_BUFFER_SIZE 200
+
+typedef cairo_status_t (*cairo_pdf_operators_use_font_subset_t) (unsigned int  font_id,
+								 unsigned int  subset_id,
+								 void         *closure);
+
+typedef struct _cairo_pdf_glyph {
+    unsigned int glyph_index;
+    double x_position;
+    double x_advance;
+} cairo_pdf_glyph_t;
+
+typedef struct _cairo_pdf_operators {
+    cairo_output_stream_t *stream;
+    cairo_matrix_t cairo_to_pdf;
+    cairo_scaled_font_subsets_t *font_subsets;
+    cairo_pdf_operators_use_font_subset_t use_font_subset;
+    void *use_font_subset_closure;
+    cairo_bool_t in_text_object; /* inside BT/ET pair */
+
+    /* PDF text state */
+    cairo_bool_t is_new_text_object; /* text object started but matrix and font not yet selected */
+    unsigned int font_id;
+    unsigned int subset_id;
+    cairo_matrix_t text_matrix; /* PDF text matrix (Tlm in the PDF reference) */
+    cairo_matrix_t cairo_to_pdftext; /* translate cairo coords to PDF text space */
+    cairo_matrix_t font_matrix_inverse;
+    double cur_x; /* Current position in PDF text space (Tm in the PDF reference) */
+    double cur_y;
+    int hex_width;
+    int num_glyphs;
+    cairo_pdf_glyph_t glyphs[PDF_GLYPH_BUFFER_SIZE];
+
+    /* PDF line style */
+    cairo_bool_t         has_line_style;
+    double		 line_width;
+    cairo_line_cap_t	 line_cap;
+    cairo_line_join_t	 line_join;
+    double		 miter_limit;
+    cairo_bool_t         has_dashes;
+} cairo_pdf_operators_t;
+
+cairo_private void
+_cairo_pdf_operators_init (cairo_pdf_operators_t       *pdf_operators,
+			   cairo_output_stream_t       *stream,
+			   cairo_matrix_t 	       *cairo_to_pdf,
+			   cairo_scaled_font_subsets_t *font_subsets);
+
+cairo_private cairo_status_t
+_cairo_pdf_operators_fini (cairo_pdf_operators_t       *pdf_operators);
+
+cairo_private void
+_cairo_pdf_operators_set_font_subsets_callback (cairo_pdf_operators_t 		     *pdf_operators,
+						cairo_pdf_operators_use_font_subset_t use_font_subset,
+						void				     *closure);
+
+cairo_private void
+_cairo_pdf_operators_set_stream (cairo_pdf_operators_t 	 *pdf_operators,
+				 cairo_output_stream_t   *stream);
+
+
+cairo_private void
+_cairo_pdf_operators_set_cairo_to_pdf_matrix (cairo_pdf_operators_t *pdf_operators,
+					      cairo_matrix_t 	    *cairo_to_pdf);
+
+cairo_private cairo_status_t
+_cairo_pdf_operators_flush (cairo_pdf_operators_t	 *pdf_operators);
+
+cairo_private void
+_cairo_pdf_operators_reset (cairo_pdf_operators_t	 *pdf_operators);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_clip (cairo_pdf_operators_t 	*pdf_operators,
+			   cairo_path_fixed_t		*path,
+			   cairo_fill_rule_t		 fill_rule);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_emit_stroke_style (cairo_pdf_operators_t	*pdf_operators,
+					cairo_stroke_style_t	*style,
+					double			 scale);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_stroke (cairo_pdf_operators_t 	*pdf_operators,
+			     cairo_path_fixed_t		*path,
+			     cairo_stroke_style_t	*style,
+			     cairo_matrix_t		*ctm,
+			     cairo_matrix_t		*ctm_inverse);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_fill (cairo_pdf_operators_t 	*pdf_operators,
+			   cairo_path_fixed_t		*path,
+			   cairo_fill_rule_t	 	fill_rule);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_fill_stroke (cairo_pdf_operators_t 	*pdf_operators,
+				  cairo_path_fixed_t		*path,
+				  cairo_fill_rule_t	 	 fill_rule,
+				  cairo_stroke_style_t	        *style,
+				  cairo_matrix_t		*ctm,
+				  cairo_matrix_t		*ctm_inverse);
+
+cairo_private cairo_int_status_t
+_cairo_pdf_operators_show_text_glyphs (cairo_pdf_operators_t	  *pdf_operators,
+				       const char                 *utf8,
+				       int                         utf8_len,
+				       cairo_glyph_t              *glyphs,
+				       int                         num_glyphs,
+				       const cairo_text_cluster_t *clusters,
+				       int                         num_clusters,
+				       cairo_text_cluster_flags_t  cluster_flags,
+				       cairo_scaled_font_t	  *scaled_font);
+
+#endif /* CAIRO_PDF_OPERATORS_H */

uppdev/plugin/cairo/lib/cairo-pdf-surface-private.h

@@ -0,0 +1,171 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Red Hat, Inc
+ * Copyright © 2006 Red Hat, Inc
+ * Copyright © 2007, 2008 Adrian Johnson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Carl Worth <cworth@cworth.org>
+ *	Adrian Johnson <ajohnson@redneon.com>
+ */
+
+#ifndef CAIRO_PDF_SURFACE_PRIVATE_H
+#define CAIRO_PDF_SURFACE_PRIVATE_H
+
+#include "cairo-pdf.h"
+
+#include "cairo-surface-private.h"
+#include "cairo-pdf-operators-private.h"
+#include "cairo-path-fixed-private.h"
+
+typedef struct _cairo_pdf_resource {
+    unsigned int id;
+} cairo_pdf_resource_t;
+
+typedef struct _cairo_pdf_group_resources {
+    cairo_array_t alphas;
+    cairo_array_t smasks;
+    cairo_array_t patterns;
+    cairo_array_t xobjects;
+    cairo_array_t fonts;
+} cairo_pdf_group_resources_t;
+
+typedef struct _cairo_pdf_pattern {
+    double width;
+    double height;
+    cairo_pattern_t *pattern;
+    cairo_pdf_resource_t pattern_res;
+    cairo_pdf_resource_t gstate_res;
+} cairo_pdf_pattern_t;
+
+typedef enum _cairo_pdf_operation {
+    PDF_PAINT,
+    PDF_MASK,
+    PDF_FILL,
+    PDF_STROKE,
+    PDF_SHOW_GLYPHS
+} cairo_pdf_operation_t;
+
+typedef struct _cairo_pdf_smask_group
+{
+    double 		  width;
+    double 		  height;
+    cairo_pdf_resource_t  group_res;
+    cairo_pdf_operation_t operation;
+    cairo_pattern_t	 *source;
+    cairo_pdf_resource_t  source_res;
+    cairo_pattern_t	 *mask;
+    cairo_path_fixed_t	  path;
+    cairo_fill_rule_t	  fill_rule;
+    cairo_stroke_style_t *style;
+    cairo_matrix_t	  ctm;
+    cairo_matrix_t	  ctm_inverse;
+    char           	 *utf8;
+    int                   utf8_len;
+    cairo_glyph_t	 *glyphs;
+    int			  num_glyphs;
+    cairo_text_cluster_t *clusters;
+    int                   num_clusters;
+    cairo_bool_t          cluster_flags;
+    cairo_scaled_font_t	 *scaled_font;
+} cairo_pdf_smask_group_t;
+
+typedef struct _cairo_pdf_surface cairo_pdf_surface_t;
+
+struct _cairo_pdf_surface {
+    cairo_surface_t base;
+
+    /* Prefer the name "output" here to avoid confusion over the
+     * structure within a PDF document known as a "stream". */
+    cairo_output_stream_t *output;
+
+    double width;
+    double height;
+    cairo_matrix_t cairo_to_pdf;
+
+    cairo_array_t objects;
+    cairo_array_t pages;
+    cairo_array_t rgb_linear_functions;
+    cairo_array_t alpha_linear_functions;
+    cairo_array_t patterns;
+    cairo_array_t smask_groups;
+    cairo_array_t knockout_group;
+
+    cairo_scaled_font_subsets_t *font_subsets;
+    cairo_array_t fonts;
+
+    cairo_pdf_resource_t next_available_resource;
+    cairo_pdf_resource_t pages_resource;
+
+    cairo_bool_t compress_content;
+
+    cairo_pdf_resource_t content;
+    cairo_pdf_resource_t content_resources;
+    cairo_pdf_group_resources_t resources;
+    cairo_bool_t has_fallback_images;
+
+    struct {
+	cairo_bool_t active;
+	cairo_pdf_resource_t self;
+	cairo_pdf_resource_t length;
+	long start_offset;
+	cairo_bool_t compressed;
+	cairo_output_stream_t *old_output;
+    } pdf_stream;
+
+    struct {
+	cairo_bool_t active;
+	cairo_output_stream_t *stream;
+	cairo_output_stream_t *mem_stream;
+	cairo_output_stream_t *old_output;
+	cairo_pdf_resource_t   resource;
+	cairo_bool_t is_knockout;
+    } group_stream;
+
+    cairo_pdf_operators_t pdf_operators;
+    cairo_paginated_mode_t paginated_mode;
+    cairo_bool_t select_pattern_gstate_saved;
+
+    cairo_bool_t force_fallbacks;
+
+    cairo_bool_t current_pattern_is_solid_color;
+    cairo_bool_t current_color_is_stroke;
+    double current_color_red;
+    double current_color_green;
+    double current_color_blue;
+    double current_color_alpha;
+
+    cairo_surface_t *paginated_surface;
+};
+
+#endif /* CAIRO_PDF_SURFACE_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-pdf.h

@@ -0,0 +1,68 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_PDF_H
+#define CAIRO_PDF_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_PDF_SURFACE
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_pdf_surface_create (const char		*filename,
+			  double		 width_in_points,
+			  double		 height_in_points);
+
+cairo_public cairo_surface_t *
+cairo_pdf_surface_create_for_stream (cairo_write_func_t	write_func,
+				     void	       *closure,
+				     double		width_in_points,
+				     double		height_in_points);
+
+cairo_public void
+cairo_pdf_surface_set_size (cairo_surface_t	*surface,
+			    double		 width_in_points,
+			    double		 height_in_points);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_PDF_SURFACE */
+# error Cairo was not compiled with support for the pdf backend
+#endif /* CAIRO_HAS_PDF_SURFACE */
+
+#endif /* CAIRO_PDF_H */

uppdev/plugin/cairo/lib/cairo-pen.c

@@ -0,0 +1,491 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+static int
+_cairo_pen_vertices_needed (double tolerance, double radius, cairo_matrix_t *matrix);
+
+static void
+_cairo_pen_compute_slopes (cairo_pen_t *pen);
+
+static void
+_cairo_pen_stroke_spline_half (cairo_pen_t *pen, cairo_spline_t *spline, cairo_direction_t dir, cairo_polygon_t *polygon);
+
+cairo_status_t
+_cairo_pen_init (cairo_pen_t	*pen,
+		 double		 radius,
+		 double		 tolerance,
+		 cairo_matrix_t	*ctm)
+{
+    int i;
+    int reflect;
+
+    pen->radius = radius;
+    pen->tolerance = tolerance;
+
+    reflect = _cairo_matrix_compute_determinant (ctm) < 0.;
+
+    pen->num_vertices = _cairo_pen_vertices_needed (tolerance,
+						    radius,
+						    ctm);
+
+    if (pen->num_vertices > ARRAY_LENGTH (pen->vertices_embedded)) {
+	pen->vertices = _cairo_malloc_ab (pen->num_vertices,
+					  sizeof (cairo_pen_vertex_t));
+	if (pen->vertices == NULL)
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+    } else {
+	pen->vertices = pen->vertices_embedded;
+    }
+
+    /*
+     * Compute pen coordinates.  To generate the right ellipse, compute points around
+     * a circle in user space and transform them to device space.  To get a consistent
+     * orientation in device space, flip the pen if the transformation matrix
+     * is reflecting
+     */
+    for (i=0; i < pen->num_vertices; i++) {
+	double theta = 2 * M_PI * i / (double) pen->num_vertices;
+	double dx = radius * cos (reflect ? -theta : theta);
+	double dy = radius * sin (reflect ? -theta : theta);
+	cairo_pen_vertex_t *v = &pen->vertices[i];
+	cairo_matrix_transform_distance (ctm, &dx, &dy);
+	v->point.x = _cairo_fixed_from_double (dx);
+	v->point.y = _cairo_fixed_from_double (dy);
+    }
+
+    _cairo_pen_compute_slopes (pen);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_pen_fini (cairo_pen_t *pen)
+{
+    if (pen->vertices != pen->vertices_embedded)
+	free (pen->vertices);
+
+    pen->vertices = pen->vertices_embedded;
+    pen->num_vertices = 0;
+}
+
+cairo_status_t
+_cairo_pen_init_copy (cairo_pen_t *pen, cairo_pen_t *other)
+{
+    *pen = *other;
+
+    pen->vertices = pen->vertices_embedded;
+    if (pen->num_vertices) {
+	if (pen->num_vertices > ARRAY_LENGTH (pen->vertices_embedded)) {
+	    pen->vertices = _cairo_malloc_ab (pen->num_vertices,
+					      sizeof (cairo_pen_vertex_t));
+	    if (pen->vertices == NULL)
+		return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	}
+
+	memcpy (pen->vertices, other->vertices,
+		pen->num_vertices * sizeof (cairo_pen_vertex_t));
+    }
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+cairo_status_t
+_cairo_pen_add_points (cairo_pen_t *pen, cairo_point_t *point, int num_points)
+{
+    cairo_status_t status;
+    int num_vertices;
+    int i;
+
+    num_vertices = pen->num_vertices + num_points;
+    if (num_vertices > ARRAY_LENGTH (pen->vertices_embedded) ||
+	pen->vertices != pen->vertices_embedded)
+    {
+	cairo_pen_vertex_t *vertices;
+
+	if (pen->vertices == pen->vertices_embedded) {
+	    vertices = _cairo_malloc_ab (num_vertices,
+		                         sizeof (cairo_pen_vertex_t));
+	    if (vertices == NULL)
+		return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+	    memcpy (vertices, pen->vertices,
+		    pen->num_vertices * sizeof (cairo_pen_vertex_t));
+	} else {
+	    vertices = _cairo_realloc_ab (pen->vertices,
+					  num_vertices,
+					  sizeof (cairo_pen_vertex_t));
+	    if (vertices == NULL)
+		return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	}
+
+	pen->vertices = vertices;
+    }
+
+    pen->num_vertices = num_vertices;
+
+    /* initialize new vertices */
+    for (i=0; i < num_points; i++)
+	pen->vertices[pen->num_vertices-num_points+i].point = point[i];
+
+    status = _cairo_hull_compute (pen->vertices, &pen->num_vertices);
+    if (status)
+	return status;
+
+    _cairo_pen_compute_slopes (pen);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/*
+The circular pen in user space is transformed into an ellipse in
+device space.
+
+We construct the pen by computing points along the circumference
+using equally spaced angles.
+
+We show that this approximation to the ellipse has maximum error at the
+major axis of the ellipse.
+
+Set
+
+	    M = major axis length
+	    m = minor axis length
+
+Align 'M' along the X axis and 'm' along the Y axis and draw
+an ellipse parameterized by angle 't':
+
+	    x = M cos t			y = m sin t
+
+Perturb t by ± d and compute two new points (x+,y+), (x-,y-).
+The distance from the average of these two points to (x,y) represents
+the maximum error in approximating the ellipse with a polygon formed
+from vertices 2∆ radians apart.
+
+	    x+ = M cos (t+∆)		y+ = m sin (t+∆)
+	    x- = M cos (t-∆)		y- = m sin (t-∆)
+
+Now compute the approximation error, E:
+
+	Ex = (x - (x+ + x-) / 2)
+	Ex = (M cos(t) - (Mcos(t+∆) + Mcos(t-∆))/2)
+	   = M (cos(t) - (cos(t)cos(∆) + sin(t)sin(∆) +
+			  cos(t)cos(∆) - sin(t)sin(∆))/2)
+	   = M(cos(t) - cos(t)cos(∆))
+	   = M cos(t) (1 - cos(∆))
+
+	Ey = y - (y+ - y-) / 2
+	   = m sin (t) - (m sin(t+∆) + m sin(t-∆)) / 2
+	   = m (sin(t) - (sin(t)cos(∆) + cos(t)sin(∆) +
+			  sin(t)cos(∆) - cos(t)sin(∆))/2)
+	   = m (sin(t) - sin(t)cos(∆))
+	   = m sin(t) (1 - cos(∆))
+
+	E² = Ex² + Ey²
+	   = (M cos(t) (1 - cos (∆)))² + (m sin(t) (1-cos(∆)))²
+	   = (1 - cos(∆))² (M² cos²(t) + m² sin²(t))
+	   = (1 - cos(∆))² ((m² + M² - m²) cos² (t) + m² sin²(t))
+	   = (1 - cos(∆))² (M² - m²) cos² (t) + (1 - cos(∆))² m²
+
+Find the extremum by differentiation wrt t and setting that to zero
+
+∂(E²)/∂(t) = (1-cos(∆))² (M² - m²) (-2 cos(t) sin(t))
+
+         0 = 2 cos (t) sin (t)
+	 0 = sin (2t)
+	 t = nπ
+
+Which is to say that the maximum and minimum errors occur on the
+axes of the ellipse at 0 and π radians:
+
+	E²(0) = (1-cos(∆))² (M² - m²) + (1-cos(∆))² m²
+	      = (1-cos(∆))² M²
+	E²(π) = (1-cos(∆))² m²
+
+maximum error = M (1-cos(∆))
+minimum error = m (1-cos(∆))
+
+We must make maximum error ≤ tolerance, so compute the ∆ needed:
+
+	    tolerance = M (1-cos(∆))
+	tolerance / M = 1 - cos (∆)
+	       cos(∆) = 1 - tolerance/M
+                    ∆ = acos (1 - tolerance / M);
+
+Remembering that ∆ is half of our angle between vertices,
+the number of vertices is then
+
+             vertices = ceil(2π/2∆).
+                      = ceil(π/∆).
+
+Note that this also equation works for M == m (a circle) as it
+doesn't matter where on the circle the error is computed.
+*/
+
+static int
+_cairo_pen_vertices_needed (double	    tolerance,
+			    double	    radius,
+			    cairo_matrix_t  *matrix)
+{
+    /*
+     * the pen is a circle that gets transformed to an ellipse by matrix.
+     * compute major axis length for a pen with the specified radius.
+     * we don't need the minor axis length.
+     */
+
+    double  major_axis = _cairo_matrix_transformed_circle_major_axis(matrix, radius);
+
+    /*
+     * compute number of vertices needed
+     */
+    int	    num_vertices;
+
+    /* Where tolerance / M is > 1, we use 4 points */
+    if (tolerance >= major_axis) {
+	num_vertices = 4;
+    } else {
+	double delta = acos (1 - tolerance / major_axis);
+	num_vertices = ceil (M_PI / delta);
+
+	/* number of vertices must be even */
+	if (num_vertices % 2)
+	    num_vertices++;
+
+	/* And we must always have at least 4 vertices. */
+	if (num_vertices < 4)
+	    num_vertices = 4;
+    }
+
+    return num_vertices;
+}
+
+static void
+_cairo_pen_compute_slopes (cairo_pen_t *pen)
+{
+    int i, i_prev;
+    cairo_pen_vertex_t *prev, *v, *next;
+
+    for (i=0, i_prev = pen->num_vertices - 1;
+	 i < pen->num_vertices;
+	 i_prev = i++) {
+	prev = &pen->vertices[i_prev];
+	v = &pen->vertices[i];
+	next = &pen->vertices[(i + 1) % pen->num_vertices];
+
+	_cairo_slope_init (&v->slope_cw, &prev->point, &v->point);
+	_cairo_slope_init (&v->slope_ccw, &v->point, &next->point);
+    }
+}
+/*
+ * Find active pen vertex for clockwise edge of stroke at the given slope.
+ *
+ * The strictness of the inequalities here is delicate. The issue is
+ * that the slope_ccw member of one pen vertex will be equivalent to
+ * the slope_cw member of the next pen vertex in a counterclockwise
+ * order. However, for this function, we care strongly about which
+ * vertex is returned.
+ *
+ * [I think the "care strongly" above has to do with ensuring that the
+ * pen's "extra points" from the spline's initial and final slopes are
+ * properly found when beginning the spline stroking.]
+ */
+void
+_cairo_pen_find_active_cw_vertex_index (cairo_pen_t *pen,
+					cairo_slope_t *slope,
+					int *active)
+{
+    int i;
+
+    for (i=0; i < pen->num_vertices; i++) {
+	if ((_cairo_slope_compare (slope, &pen->vertices[i].slope_ccw) < 0) &&
+	    (_cairo_slope_compare (slope, &pen->vertices[i].slope_cw) >= 0))
+	    break;
+    }
+
+    /* If the desired slope cannot be found between any of the pen
+     * vertices, then we must have a degenerate pen, (such as a pen
+     * that's been transformed to a line). In that case, we consider
+     * the first pen vertex as the appropriate clockwise vertex.
+     */
+    if (i == pen->num_vertices)
+	i = 0;
+
+    *active = i;
+}
+
+/* Find active pen vertex for counterclockwise edge of stroke at the given slope.
+ *
+ * Note: See the comments for _cairo_pen_find_active_cw_vertex_index
+ * for some details about the strictness of the inequalities here.
+ */
+void
+_cairo_pen_find_active_ccw_vertex_index (cairo_pen_t *pen,
+					 cairo_slope_t *slope,
+					 int *active)
+{
+    int i;
+    cairo_slope_t slope_reverse;
+
+    slope_reverse = *slope;
+    slope_reverse.dx = -slope_reverse.dx;
+    slope_reverse.dy = -slope_reverse.dy;
+
+    for (i=pen->num_vertices-1; i >= 0; i--) {
+	if ((_cairo_slope_compare (&pen->vertices[i].slope_ccw, &slope_reverse) >= 0) &&
+	    (_cairo_slope_compare (&pen->vertices[i].slope_cw, &slope_reverse) < 0))
+	    break;
+    }
+
+    /* If the desired slope cannot be found between any of the pen
+     * vertices, then we must have a degenerate pen, (such as a pen
+     * that's been transformed to a line). In that case, we consider
+     * the last pen vertex as the appropriate counterclockwise vertex.
+     */
+    if (i < 0)
+	i = pen->num_vertices - 1;
+
+    *active = i;
+}
+
+static void
+_cairo_pen_stroke_spline_half (cairo_pen_t *pen,
+			       cairo_spline_t *spline,
+			       cairo_direction_t dir,
+			       cairo_polygon_t *polygon)
+{
+    int i;
+    int start, stop, step;
+    int active = 0;
+    cairo_point_t hull_point;
+    cairo_slope_t slope, initial_slope, final_slope;
+    cairo_point_t *point = spline->points;
+    int num_points = spline->num_points;
+
+    if (dir == CAIRO_DIRECTION_FORWARD) {
+	start = 0;
+	stop = num_points;
+	step = 1;
+	initial_slope = spline->initial_slope;
+	final_slope = spline->final_slope;
+    } else {
+	start = num_points - 1;
+	stop = -1;
+	step = -1;
+	initial_slope = spline->final_slope;
+	initial_slope.dx = -initial_slope.dx;
+	initial_slope.dy = -initial_slope.dy;
+	final_slope = spline->initial_slope;
+	final_slope.dx = -final_slope.dx;
+	final_slope.dy = -final_slope.dy;
+    }
+
+    _cairo_pen_find_active_cw_vertex_index (pen,
+	                                    &initial_slope,
+					    &active);
+
+    i = start;
+    while (i != stop) {
+	hull_point.x = point[i].x + pen->vertices[active].point.x;
+	hull_point.y = point[i].y + pen->vertices[active].point.y;
+
+	_cairo_polygon_line_to (polygon, &hull_point);
+
+	if (i + step == stop)
+	    slope = final_slope;
+	else
+	    _cairo_slope_init (&slope, &point[i], &point[i+step]);
+
+	/* The strict inequalities here ensure that if a spline slope
+	 * compares identically with either of the slopes of the
+	 * active vertex, then it remains the active vertex. This is
+	 * very important since otherwise we can trigger an infinite
+	 * loop in the case of a degenerate pen, (a line), where
+	 * neither vertex considers itself active for the slope---one
+	 * will consider it as equal and reject, and the other will
+	 * consider it unequal and reject. This is due to the inherent
+	 * ambiguity when comparing slopes that differ by exactly
+	 * pi. */
+	if (_cairo_slope_compare (&slope, &pen->vertices[active].slope_ccw) > 0) {
+	    if (++active == pen->num_vertices)
+		active = 0;
+	} else if (_cairo_slope_compare (&slope, &pen->vertices[active].slope_cw) < 0) {
+	    if (--active == -1)
+		active = pen->num_vertices - 1;
+	} else {
+	    i += step;
+	}
+    }
+}
+
+/* Compute outline of a given spline using the pen.
+   The trapezoids needed to fill that outline will be added to traps
+*/
+cairo_status_t
+_cairo_pen_stroke_spline (cairo_pen_t		*pen,
+			  cairo_spline_t	*spline,
+			  double		tolerance,
+			  cairo_traps_t		*traps)
+{
+    cairo_status_t status;
+    cairo_polygon_t polygon;
+
+    /* If the line width is so small that the pen is reduced to a
+       single point, then we have nothing to do. */
+    if (pen->num_vertices <= 1)
+	return CAIRO_STATUS_SUCCESS;
+
+    _cairo_polygon_init (&polygon);
+
+    status = _cairo_spline_decompose (spline, tolerance);
+    if (status)
+	goto BAIL;
+
+    _cairo_pen_stroke_spline_half (pen, spline, CAIRO_DIRECTION_FORWARD, &polygon);
+
+    _cairo_pen_stroke_spline_half (pen, spline, CAIRO_DIRECTION_REVERSE, &polygon);
+
+    _cairo_polygon_close (&polygon);
+    status = _cairo_polygon_status (&polygon);
+    if (status)
+	goto BAIL;
+
+    status = _cairo_bentley_ottmann_tessellate_polygon (traps, &polygon, CAIRO_FILL_RULE_WINDING);
+BAIL:
+    _cairo_polygon_fini (&polygon);
+
+    return status;
+}

uppdev/plugin/cairo/lib/cairo-png.c

@@ -0,0 +1,708 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+
+#include "cairoint.h"
+
+#include <errno.h>
+#include <png.h>
+
+/* Unpremultiplies data and converts native endian ARGB => RGBA bytes */
+static void
+unpremultiply_data (png_structp png, png_row_infop row_info, png_bytep data)
+{
+    unsigned int i;
+
+    for (i = 0; i < row_info->rowbytes; i += 4) {
+        uint8_t *b = &data[i];
+        uint32_t pixel;
+        uint8_t  alpha;
+
+	memcpy (&pixel, b, sizeof (uint32_t));
+	alpha = (pixel & 0xff000000) >> 24;
+        if (alpha == 0) {
+	    b[0] = b[1] = b[2] = b[3] = 0;
+	} else {
+            b[0] = (((pixel & 0xff0000) >> 16) * 255 + alpha / 2) / alpha;
+            b[1] = (((pixel & 0x00ff00) >>  8) * 255 + alpha / 2) / alpha;
+            b[2] = (((pixel & 0x0000ff) >>  0) * 255 + alpha / 2) / alpha;
+	    b[3] = alpha;
+	}
+    }
+}
+
+/* Converts native endian xRGB => RGBx bytes */
+static void
+convert_data_to_bytes (png_structp png, png_row_infop row_info, png_bytep data)
+{
+    unsigned int i;
+
+    for (i = 0; i < row_info->rowbytes; i += 4) {
+        uint8_t *b = &data[i];
+        uint32_t pixel;
+
+	memcpy (&pixel, b, sizeof (uint32_t));
+
+	b[0] = (pixel & 0xff0000) >> 16;
+	b[1] = (pixel & 0x00ff00) >>  8;
+	b[2] = (pixel & 0x0000ff) >>  0;
+	b[3] = 0;
+    }
+}
+
+/* Use a couple of simple error callbacks that do not print anything to
+ * stderr and rely on the user to check for errors via the #cairo_status_t
+ * return.
+ */
+static void
+png_simple_error_callback (png_structp png,
+	                   png_const_charp error_msg)
+{
+    cairo_status_t *error = png_get_error_ptr (png);
+
+    /* default to the most likely error */
+    if (*error == CAIRO_STATUS_SUCCESS)
+	*error = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+#ifdef PNG_SETJMP_SUPPORTED
+    longjmp (png_jmpbuf (png), 1);
+#endif
+
+    /* if we get here, then we have to choice but to abort ... */
+}
+
+static void
+png_simple_warning_callback (png_structp png,
+	                     png_const_charp error_msg)
+{
+    cairo_status_t *error = png_get_error_ptr (png);
+
+    /* default to the most likely error */
+    if (*error == CAIRO_STATUS_SUCCESS)
+	*error = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    /* png does not expect to abort and will try to tidy up after a warning */
+}
+
+
+/* Starting with libpng-1.2.30, we must explicitly specify an output_flush_fn.
+ * Otherwise, we will segfault if we are writing to a stream. */
+static void
+png_simple_output_flush_fn (png_structp png_ptr)
+{
+}
+
+static cairo_status_t
+write_png (cairo_surface_t	*surface,
+	   png_rw_ptr		write_func,
+	   void			*closure)
+{
+    int i;
+    cairo_status_t status;
+    cairo_image_surface_t *image;
+    void *image_extra;
+    png_struct *png;
+    png_info *info;
+    png_byte **volatile rows = NULL;
+    png_color_16 white;
+    int png_color_type;
+    int depth;
+
+    status = _cairo_surface_acquire_source_image (surface,
+						  &image,
+						  &image_extra);
+
+    if (status == CAIRO_INT_STATUS_UNSUPPORTED)
+	return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+    else if (status)
+        return status;
+
+    /* PNG complains about "Image width or height is zero in IHDR" */
+    if (image->width == 0 || image->height == 0) {
+	status = _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+	goto BAIL1;
+    }
+
+    rows = _cairo_malloc_ab (image->height, sizeof (png_byte*));
+    if (rows == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	goto BAIL1;
+    }
+
+    for (i = 0; i < image->height; i++)
+	rows[i] = (png_byte *) image->data + i * image->stride;
+
+    png = png_create_write_struct (PNG_LIBPNG_VER_STRING, &status,
+	                           png_simple_error_callback,
+	                           png_simple_warning_callback);
+    if (png == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	goto BAIL2;
+    }
+
+    info = png_create_info_struct (png);
+    if (info == NULL) {
+	status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	goto BAIL3;
+    }
+
+#ifdef PNG_SETJMP_SUPPORTED
+    if (setjmp (png_jmpbuf (png)))
+	goto BAIL3;
+#endif
+
+    png_set_write_fn (png, closure, write_func, png_simple_output_flush_fn);
+
+    switch (image->format) {
+    case CAIRO_FORMAT_ARGB32:
+	depth = 8;
+	png_color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+	break;
+    case CAIRO_FORMAT_RGB24:
+	depth = 8;
+	png_color_type = PNG_COLOR_TYPE_RGB;
+	break;
+    case CAIRO_FORMAT_A8:
+	depth = 8;
+	png_color_type = PNG_COLOR_TYPE_GRAY;
+	break;
+    case CAIRO_FORMAT_A1:
+	depth = 1;
+	png_color_type = PNG_COLOR_TYPE_GRAY;
+#ifndef WORDS_BIGENDIAN
+	png_set_packswap (png);
+#endif
+	break;
+    default:
+	status = _cairo_error (CAIRO_STATUS_INVALID_FORMAT);
+	goto BAIL3;
+    }
+
+    png_set_IHDR (png, info,
+		  image->width,
+		  image->height, depth,
+		  png_color_type,
+		  PNG_INTERLACE_NONE,
+		  PNG_COMPRESSION_TYPE_DEFAULT,
+		  PNG_FILTER_TYPE_DEFAULT);
+
+    white.gray = (1 << depth) - 1;
+    white.red = white.blue = white.green = white.gray;
+    png_set_bKGD (png, info, &white);
+
+    if (0) { /* XXX extract meta-data from surface (i.e. creation date) */
+	png_time pt;
+
+	png_convert_from_time_t (&pt, time (NULL));
+	png_set_tIME (png, info, &pt);
+    }
+
+    /* We have to call png_write_info() before setting up the write
+     * transformation, since it stores data internally in 'png'
+     * that is needed for the write transformation functions to work.
+     */
+    png_write_info (png, info);
+
+    if (image->format == CAIRO_FORMAT_ARGB32)
+	png_set_write_user_transform_fn (png, unpremultiply_data);
+    else if (image->format == CAIRO_FORMAT_RGB24)
+	png_set_write_user_transform_fn (png, convert_data_to_bytes);
+    if (image->format == CAIRO_FORMAT_RGB24)
+	png_set_filler (png, 0, PNG_FILLER_AFTER);
+
+    png_write_image (png, rows);
+    png_write_end (png, info);
+
+BAIL3:
+    png_destroy_write_struct (&png, &info);
+BAIL2:
+    free (rows);
+BAIL1:
+    _cairo_surface_release_source_image (surface, image, image_extra);
+
+    return status;
+}
+
+static void
+stdio_write_func (png_structp png, png_bytep data, png_size_t size)
+{
+    FILE *fp;
+
+    fp = png_get_io_ptr (png);
+    while (size) {
+	size_t ret = fwrite (data, 1, size, fp);
+	size -= ret;
+	data += ret;
+	if (size && ferror (fp)) {
+	    cairo_status_t *error = png_get_error_ptr (png);
+	    if (*error == CAIRO_STATUS_SUCCESS)
+		*error = _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+	    png_error (png, NULL);
+	}
+    }
+}
+
+/**
+ * cairo_surface_write_to_png:
+ * @surface: a #cairo_surface_t with pixel contents
+ * @filename: the name of a file to write to
+ *
+ * Writes the contents of @surface to a new file @filename as a PNG
+ * image.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if the PNG file was written
+ * successfully. Otherwise, %CAIRO_STATUS_NO_MEMORY if memory could not
+ * be allocated for the operation or
+ * %CAIRO_STATUS_SURFACE_TYPE_MISMATCH if the surface does not have
+ * pixel contents, or %CAIRO_STATUS_WRITE_ERROR if an I/O error occurs
+ * while attempting to write the file.
+ **/
+cairo_status_t
+cairo_surface_write_to_png (cairo_surface_t	*surface,
+			    const char		*filename)
+{
+    FILE *fp;
+    cairo_status_t status;
+
+    if (surface->status)
+	return surface->status;
+
+    if (surface->finished)
+	return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED);
+
+    fp = fopen (filename, "wb");
+    if (fp == NULL) {
+	switch (errno) {
+	case ENOMEM:
+	    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	default:
+	    return _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+	}
+    }
+
+    status = write_png (surface, stdio_write_func, fp);
+
+    if (fclose (fp) && status == CAIRO_STATUS_SUCCESS)
+	status = _cairo_error (CAIRO_STATUS_WRITE_ERROR);
+
+    return status;
+}
+
+struct png_write_closure_t {
+    cairo_write_func_t		 write_func;
+    void			*closure;
+};
+
+static void
+stream_write_func (png_structp png, png_bytep data, png_size_t size)
+{
+    cairo_status_t status;
+    struct png_write_closure_t *png_closure;
+
+    png_closure = png_get_io_ptr (png);
+    status = png_closure->write_func (png_closure->closure, data, size);
+    if (status) {
+	cairo_status_t *error = png_get_error_ptr (png);
+	if (*error == CAIRO_STATUS_SUCCESS)
+	    *error = status;
+	png_error (png, NULL);
+    }
+}
+
+/**
+ * cairo_surface_write_to_png_stream:
+ * @surface: a #cairo_surface_t with pixel contents
+ * @write_func: a #cairo_write_func_t
+ * @closure: closure data for the write function
+ *
+ * Writes the image surface to the write function.
+ *
+ * Return value: %CAIRO_STATUS_SUCCESS if the PNG file was written
+ * successfully.  Otherwise, %CAIRO_STATUS_NO_MEMORY is returned if
+ * memory could not be allocated for the operation,
+ * %CAIRO_STATUS_SURFACE_TYPE_MISMATCH if the surface does not have
+ * pixel contents.
+ **/
+cairo_status_t
+cairo_surface_write_to_png_stream (cairo_surface_t	*surface,
+				   cairo_write_func_t	write_func,
+				   void			*closure)
+{
+    struct png_write_closure_t png_closure;
+
+    if (surface->status)
+	return surface->status;
+
+    if (surface->finished)
+	return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED);
+
+    png_closure.write_func = write_func;
+    png_closure.closure = closure;
+
+    return write_png (surface, stream_write_func, &png_closure);
+}
+slim_hidden_def (cairo_surface_write_to_png_stream);
+
+static inline int
+multiply_alpha (int alpha, int color)
+{
+    int temp = (alpha * color) + 0x80;
+    return ((temp + (temp >> 8)) >> 8);
+}
+
+/* Premultiplies data and converts RGBA bytes => native endian */
+static void
+premultiply_data (png_structp   png,
+                  png_row_infop row_info,
+                  png_bytep     data)
+{
+    unsigned int i;
+
+    for (i = 0; i < row_info->rowbytes; i += 4) {
+	uint8_t *base  = &data[i];
+	uint8_t  alpha = base[3];
+	uint32_t p;
+
+	if (alpha == 0) {
+	    p = 0;
+	} else {
+	    uint8_t  red   = base[0];
+	    uint8_t  green = base[1];
+	    uint8_t  blue  = base[2];
+
+	    if (alpha != 0xff) {
+		red   = multiply_alpha (alpha, red);
+		green = multiply_alpha (alpha, green);
+		blue  = multiply_alpha (alpha, blue);
+	    }
+	    p = (alpha << 24) | (red << 16) | (green << 8) | (blue << 0);
+	}
+	memcpy (base, &p, sizeof (uint32_t));
+    }
+}
+
+/* Converts RGBx bytes to native endian xRGB */
+static void
+convert_bytes_to_data (png_structp png, png_row_infop row_info, png_bytep data)
+{
+    unsigned int i;
+
+    for (i = 0; i < row_info->rowbytes; i += 4) {
+	uint8_t *base  = &data[i];
+	uint8_t  red   = base[0];
+	uint8_t  green = base[1];
+	uint8_t  blue  = base[2];
+	uint32_t pixel;
+
+	pixel = (0xff << 24) | (red << 16) | (green << 8) | (blue << 0);
+	memcpy (base, &pixel, sizeof (uint32_t));
+    }
+}
+
+static cairo_surface_t *
+read_png (png_rw_ptr	read_func,
+	  void		*closure)
+{
+    cairo_surface_t *surface;
+    png_struct *png = NULL;
+    png_info *info;
+    png_byte *data = NULL;
+    png_byte **row_pointers = NULL;
+    png_uint_32 png_width, png_height;
+    int depth, color_type, interlace, stride;
+    unsigned int i;
+    cairo_format_t format;
+    cairo_status_t status;
+
+    /* XXX: Perhaps we'll want some other error handlers? */
+    png = png_create_read_struct (PNG_LIBPNG_VER_STRING,
+                                  &status,
+	                          png_simple_error_callback,
+	                          png_simple_warning_callback);
+    if (png == NULL) {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+	goto BAIL;
+    }
+
+    info = png_create_info_struct (png);
+    if (info == NULL) {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+	goto BAIL;
+    }
+
+    png_set_read_fn (png, closure, read_func);
+
+    status = CAIRO_STATUS_SUCCESS;
+#ifdef PNG_SETJMP_SUPPORTED
+    if (setjmp (png_jmpbuf (png))) {
+	surface = _cairo_surface_create_in_error (status);
+	goto BAIL;
+    }
+#endif
+
+    png_read_info (png, info);
+
+    png_get_IHDR (png, info,
+                  &png_width, &png_height, &depth,
+                  &color_type, &interlace, NULL, NULL);
+    if (status) { /* catch any early warnings */
+	surface = _cairo_surface_create_in_error (status);
+	goto BAIL;
+    }
+
+    /* convert palette/gray image to rgb */
+    if (color_type == PNG_COLOR_TYPE_PALETTE)
+        png_set_palette_to_rgb (png);
+
+    /* expand gray bit depth if needed */
+    if (color_type == PNG_COLOR_TYPE_GRAY) {
+#if PNG_LIBPNG_VER >= 10209
+        png_set_expand_gray_1_2_4_to_8 (png);
+#else
+        png_set_gray_1_2_4_to_8 (png);
+#endif
+    }
+
+    /* transform transparency to alpha */
+    if (png_get_valid (png, info, PNG_INFO_tRNS))
+        png_set_tRNS_to_alpha (png);
+
+    if (depth == 16)
+        png_set_strip_16 (png);
+
+    if (depth < 8)
+        png_set_packing (png);
+
+    /* convert grayscale to RGB */
+    if (color_type == PNG_COLOR_TYPE_GRAY ||
+	color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+    {
+	png_set_gray_to_rgb (png);
+    }
+
+    if (interlace != PNG_INTERLACE_NONE)
+        png_set_interlace_handling (png);
+
+    png_set_filler (png, 0xff, PNG_FILLER_AFTER);
+
+    /* recheck header after setting EXPAND options */
+    png_read_update_info (png, info);
+    png_get_IHDR (png, info,
+                  &png_width, &png_height, &depth,
+                  &color_type, &interlace, NULL, NULL);
+    if (depth != 8 ||
+	! (color_type == PNG_COLOR_TYPE_RGB ||
+	   color_type == PNG_COLOR_TYPE_RGB_ALPHA))
+    {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_READ_ERROR));
+	goto BAIL;
+    }
+
+    switch (color_type) {
+	default:
+	    ASSERT_NOT_REACHED;
+	    /* fall-through just in case ;-) */
+
+	case PNG_COLOR_TYPE_RGB_ALPHA:
+	    format = CAIRO_FORMAT_ARGB32;
+	    png_set_read_user_transform_fn (png, premultiply_data);
+	    break;
+
+	case PNG_COLOR_TYPE_RGB:
+	    format = CAIRO_FORMAT_RGB24;
+	    png_set_read_user_transform_fn (png, convert_bytes_to_data);
+	    break;
+    }
+
+    stride = cairo_format_stride_for_width (format, png_width);
+    if (stride < 0) {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_STRIDE));
+	goto BAIL;
+    }
+
+    data = _cairo_malloc_ab (png_height, stride);
+    if (data == NULL) {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+	goto BAIL;
+    }
+
+    row_pointers = _cairo_malloc_ab (png_height, sizeof (char *));
+    if (row_pointers == NULL) {
+	surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
+	goto BAIL;
+    }
+
+    for (i = 0; i < png_height; i++)
+        row_pointers[i] = &data[i * stride];
+
+    png_read_image (png, row_pointers);
+    png_read_end (png, info);
+
+    if (status) { /* catch any late warnings - probably hit an error already */
+	surface = _cairo_surface_create_in_error (status);
+	goto BAIL;
+    }
+
+    surface = cairo_image_surface_create_for_data (data, format,
+						   png_width, png_height,
+						   stride);
+    if (surface->status)
+	goto BAIL;
+
+    _cairo_image_surface_assume_ownership_of_data ((cairo_image_surface_t*)surface);
+    data = NULL;
+
+ BAIL:
+    if (row_pointers)
+	free (row_pointers);
+    if (data)
+	free (data);
+    if (png)
+	png_destroy_read_struct (&png, &info, NULL);
+
+    return surface;
+}
+
+static void
+stdio_read_func (png_structp png, png_bytep data, png_size_t size)
+{
+    FILE *fp;
+
+    fp = png_get_io_ptr (png);
+    while (size) {
+	size_t ret = fread (data, 1, size, fp);
+	size -= ret;
+	data += ret;
+	if (size && (feof (fp) || ferror (fp))) {
+	    cairo_status_t *error = png_get_error_ptr (png);
+	    if (*error == CAIRO_STATUS_SUCCESS)
+		*error = _cairo_error (CAIRO_STATUS_READ_ERROR);
+	    png_error (png, NULL);
+	}
+    }
+}
+
+/**
+ * cairo_image_surface_create_from_png:
+ * @filename: name of PNG file to load
+ *
+ * Creates a new image surface and initializes the contents to the
+ * given PNG file.
+ *
+ * Return value: a new #cairo_surface_t initialized with the contents
+ * of the PNG file, or a "nil" surface if any error occurred. A nil
+ * surface can be checked for with cairo_surface_status(surface) which
+ * may return one of the following values:
+ *
+ *	%CAIRO_STATUS_NO_MEMORY
+ *	%CAIRO_STATUS_FILE_NOT_FOUND
+ *	%CAIRO_STATUS_READ_ERROR
+ **/
+cairo_surface_t *
+cairo_image_surface_create_from_png (const char *filename)
+{
+    FILE *fp;
+    cairo_surface_t *surface;
+
+    fp = fopen (filename, "rb");
+    if (fp == NULL) {
+	cairo_status_t status;
+	switch (errno) {
+	case ENOMEM:
+	    status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	    break;
+	case ENOENT:
+	    status = _cairo_error (CAIRO_STATUS_FILE_NOT_FOUND);
+	    break;
+	default:
+	    status = _cairo_error (CAIRO_STATUS_READ_ERROR);
+	    break;
+	}
+	return _cairo_surface_create_in_error (status);
+    }
+
+    surface = read_png (stdio_read_func, fp);
+
+    fclose (fp);
+
+    return surface;
+}
+
+struct png_read_closure_t {
+    cairo_read_func_t		 read_func;
+    void			*closure;
+};
+
+static void
+stream_read_func (png_structp png, png_bytep data, png_size_t size)
+{
+    cairo_status_t status;
+    struct png_read_closure_t *png_closure;
+
+    png_closure = png_get_io_ptr (png);
+    status = png_closure->read_func (png_closure->closure, data, size);
+    if (status) {
+	cairo_status_t *error = png_get_error_ptr (png);
+	if (*error == CAIRO_STATUS_SUCCESS)
+	    *error = status;
+	png_error (png, NULL);
+    }
+}
+
+/**
+ * cairo_image_surface_create_from_png_stream:
+ * @read_func: function called to read the data of the file
+ * @closure: data to pass to @read_func.
+ *
+ * Creates a new image surface from PNG data read incrementally
+ * via the @read_func function.
+ *
+ * Return value: a new #cairo_surface_t initialized with the contents
+ * of the PNG file or %NULL if the data read is not a valid PNG image or
+ * memory could not be allocated for the operation.
+ **/
+cairo_surface_t *
+cairo_image_surface_create_from_png_stream (cairo_read_func_t	read_func,
+					    void		*closure)
+{
+    struct png_read_closure_t png_closure;
+
+    png_closure.read_func = read_func;
+    png_closure.closure = closure;
+
+    return read_png (stream_read_func, &png_closure);
+}

uppdev/plugin/cairo/lib/cairo-polygon.c

@@ -0,0 +1,149 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairoint.h"
+
+void
+_cairo_polygon_init (cairo_polygon_t *polygon)
+{
+    polygon->status = CAIRO_STATUS_SUCCESS;
+
+    polygon->num_edges = 0;
+
+    polygon->edges = polygon->edges_embedded;
+    polygon->edges_size = ARRAY_LENGTH (polygon->edges_embedded);
+
+    polygon->has_current_point = FALSE;
+}
+
+void
+_cairo_polygon_fini (cairo_polygon_t *polygon)
+{
+    if (polygon->edges != polygon->edges_embedded)
+	free (polygon->edges);
+}
+
+/* make room for at least one more edge */
+static cairo_bool_t
+_cairo_polygon_grow (cairo_polygon_t *polygon)
+{
+    cairo_edge_t *new_edges;
+    int old_size = polygon->edges_size;
+    int new_size = 4 * old_size;
+
+    if (polygon->edges == polygon->edges_embedded) {
+	new_edges = _cairo_malloc_ab (new_size, sizeof (cairo_edge_t));
+	if (new_edges != NULL)
+	    memcpy (new_edges, polygon->edges, old_size * sizeof (cairo_edge_t));
+    } else {
+	new_edges = _cairo_realloc_ab (polygon->edges,
+		                       new_size, sizeof (cairo_edge_t));
+    }
+
+    if (new_edges == NULL) {
+	polygon->status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
+	return FALSE;
+    }
+
+    polygon->edges = new_edges;
+    polygon->edges_size = new_size;
+
+    return TRUE;
+}
+
+static void
+_cairo_polygon_add_edge (cairo_polygon_t *polygon,
+			 const cairo_point_t *p1,
+			 const cairo_point_t *p2)
+{
+    cairo_edge_t *edge;
+
+    /* drop horizontal edges */
+    if (p1->y == p2->y)
+	goto DONE;
+
+    if (polygon->num_edges == polygon->edges_size) {
+	if (! _cairo_polygon_grow (polygon))
+	    return;
+    }
+
+    edge = &polygon->edges[polygon->num_edges++];
+    if (p1->y < p2->y) {
+	edge->edge.p1 = *p1;
+	edge->edge.p2 = *p2;
+	edge->clockWise = 1;
+    } else {
+	edge->edge.p1 = *p2;
+	edge->edge.p2 = *p1;
+	edge->clockWise = 0;
+    }
+
+  DONE:
+    _cairo_polygon_move_to (polygon, p2);
+}
+
+void
+_cairo_polygon_move_to (cairo_polygon_t *polygon,
+			const cairo_point_t *point)
+{
+    if (! polygon->has_current_point)
+	polygon->first_point = *point;
+
+    polygon->current_point = *point;
+    polygon->has_current_point = TRUE;
+}
+
+void
+_cairo_polygon_line_to (cairo_polygon_t *polygon,
+			const cairo_point_t *point)
+{
+    if (polygon->has_current_point)
+	_cairo_polygon_add_edge (polygon, &polygon->current_point, point);
+    else
+	_cairo_polygon_move_to (polygon, point);
+}
+
+void
+_cairo_polygon_close (cairo_polygon_t *polygon)
+{
+    if (polygon->has_current_point) {
+	_cairo_polygon_add_edge (polygon,
+				 &polygon->current_point,
+				 &polygon->first_point);
+
+	polygon->has_current_point = FALSE;
+    }
+}

uppdev/plugin/cairo/lib/cairo-private.h

@@ -0,0 +1,57 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Red Hat, Inc.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@redhat.com>
+ */
+
+#ifndef CAIRO_PRIVATE_H
+#define CAIRO_PRIVATE_H
+
+#include "cairo-reference-count-private.h"
+#include "cairo-gstate-private.h"
+#include "cairo-path-fixed-private.h"
+
+struct _cairo {
+    cairo_reference_count_t ref_count;
+
+    cairo_status_t status;
+
+    cairo_user_data_array_t user_data;
+
+    cairo_gstate_t *gstate;
+    cairo_gstate_t  gstate_tail[1];
+    cairo_gstate_t *gstate_freelist;
+
+    cairo_path_fixed_t path[1];
+};
+
+#endif /* CAIRO_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-ps-surface-private.h

@@ -0,0 +1,100 @@
+/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2003 University of Southern California
+ * Copyright © 2005 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Keith Packard <keithp@keithp.com>
+ */
+
+#ifndef CAIRO_PS_SURFACE_PRIVATE_H
+#define CAIRO_PS_SURFACE_PRIVATE_H
+
+#include "cairo-ps.h"
+
+#include "cairo-surface-private.h"
+#include "cairo-pdf-operators-private.h"
+
+#include <time.h>
+
+typedef struct cairo_ps_surface {
+    cairo_surface_t base;
+
+    /* Here final_stream corresponds to the stream/file passed to
+     * cairo_ps_surface_create surface is built. Meanwhile stream is a
+     * temporary stream in which the file output is built, (so that
+     * the header can be built and inserted into the target stream
+     * before the contents of the temporary stream are copied). */
+    cairo_output_stream_t *final_stream;
+
+    FILE *tmpfile;
+    cairo_output_stream_t *stream;
+
+    cairo_bool_t eps;
+    cairo_content_t content;
+    double width;
+    double height;
+    int bbox_x1, bbox_y1, bbox_x2, bbox_y2;
+    cairo_matrix_t cairo_to_ps;
+    cairo_image_surface_t *image;
+    void *image_extra;
+    cairo_bool_t use_string_datasource;
+
+    cairo_bool_t current_pattern_is_solid_color;
+    cairo_color_t current_color;
+
+    int num_pages;
+
+    cairo_paginated_mode_t paginated_mode;
+
+    cairo_bool_t force_fallbacks;
+    cairo_bool_t has_creation_date;
+    time_t creation_date;
+
+    cairo_scaled_font_subsets_t *font_subsets;
+
+    cairo_array_t dsc_header_comments;
+    cairo_array_t dsc_setup_comments;
+    cairo_array_t dsc_page_setup_comments;
+
+    cairo_array_t *dsc_comment_target;
+
+    cairo_ps_level_t ps_level;
+    cairo_ps_level_t ps_level_used;
+
+    cairo_pdf_operators_t pdf_operators;
+    cairo_surface_t *paginated_surface;
+} cairo_ps_surface_t;
+
+#endif /* CAIRO_PS_SURFACE_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-ps.h

@@ -0,0 +1,114 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2002 University of Southern California
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is University of Southern
+ * California.
+ *
+ * Contributor(s):
+ *	Carl D. Worth <cworth@cworth.org>
+ */
+
+#ifndef CAIRO_PS_H
+#define CAIRO_PS_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_PS_SURFACE
+
+#include <stdio.h>
+
+CAIRO_BEGIN_DECLS
+
+/* PS-surface functions */
+
+/**
+ * cairo_ps_level_t:
+ * @CAIRO_PS_LEVEL_2: The language level 2 of the PostScript specification.
+ * @CAIRO_PS_LEVEL_3: The language level 3 of the PostScript specification.
+ *
+ * #cairo_ps_level_t is used to describe the language level of the
+ * PostScript Language Reference that a generated PostScript file will
+ * conform to.
+ */
+typedef enum _cairo_ps_level {
+    CAIRO_PS_LEVEL_2,
+    CAIRO_PS_LEVEL_3
+} cairo_ps_level_t;
+
+cairo_public cairo_surface_t *
+cairo_ps_surface_create (const char		*filename,
+			 double			 width_in_points,
+			 double			 height_in_points);
+
+cairo_public cairo_surface_t *
+cairo_ps_surface_create_for_stream (cairo_write_func_t	write_func,
+				    void	       *closure,
+				    double		width_in_points,
+				    double		height_in_points);
+
+cairo_public void
+cairo_ps_surface_restrict_to_level (cairo_surface_t    *surface,
+                                    cairo_ps_level_t    level);
+
+cairo_public void
+cairo_ps_get_levels (cairo_ps_level_t const  **levels,
+                     int                      *num_levels);
+
+cairo_public const char *
+cairo_ps_level_to_string (cairo_ps_level_t level);
+
+cairo_public void
+cairo_ps_surface_set_eps (cairo_surface_t	*surface,
+			  cairo_bool_t           eps);
+
+cairo_public cairo_bool_t
+cairo_ps_surface_get_eps (cairo_surface_t	*surface);
+
+cairo_public void
+cairo_ps_surface_set_size (cairo_surface_t	*surface,
+			   double		 width_in_points,
+			   double		 height_in_points);
+
+cairo_public void
+cairo_ps_surface_dsc_comment (cairo_surface_t	*surface,
+			      const char	*comment);
+
+cairo_public void
+cairo_ps_surface_dsc_begin_setup (cairo_surface_t *surface);
+
+cairo_public void
+cairo_ps_surface_dsc_begin_page_setup (cairo_surface_t *surface);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_PS_SURFACE */
+# error Cairo was not compiled with support for the ps backend
+#endif /* CAIRO_HAS_PS_SURFACE */
+
+#endif /* CAIRO_PS_H */

uppdev/plugin/cairo/lib/cairo-quartz-font.c

@@ -0,0 +1,840 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright <EFBFBD> 2008 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation.
+ *
+ * Contributor(s):
+ *	Vladimir Vukicevic <vladimir@mozilla.com>
+ */
+
+#include "cairoint.h"
+
+#include <dlfcn.h>
+
+#include "cairo-quartz.h"
+#include "cairo-quartz-private.h"
+
+/* CreateWithFontName exists in 10.5, but not in 10.4; CreateWithName isn't public in 10.4 */
+static CGFontRef (*CGFontCreateWithFontNamePtr) (CFStringRef) = NULL;
+static CGFontRef (*CGFontCreateWithNamePtr) (const char *) = NULL;
+
+/* These aren't public before 10.5, and some have different names in 10.4 */
+static int (*CGFontGetUnitsPerEmPtr) (CGFontRef) = NULL;
+static bool (*CGFontGetGlyphAdvancesPtr) (CGFontRef, const CGGlyph[], size_t, int[]) = NULL;
+static bool (*CGFontGetGlyphBBoxesPtr) (CGFontRef, const CGGlyph[], size_t, CGRect[]) = NULL;
+static CGRect (*CGFontGetFontBBoxPtr) (CGFontRef) = NULL;
+
+/* Not public, but present */
+static void (*CGFontGetGlyphsForUnicharsPtr) (CGFontRef, const UniChar[], const CGGlyph[], size_t) = NULL;
+
+/* Not public in the least bit */
+static CGPathRef (*CGFontGetGlyphPathPtr) (CGFontRef fontRef, CGAffineTransform *textTransform, int unknown, CGGlyph glyph) = NULL;
+
+/* CGFontGetHMetrics isn't public, but the other functions are public/present in 10.5 */
+typedef struct {
+    int ascent;
+    int descent;
+    int leading;
+} quartz_CGFontMetrics;
+static quartz_CGFontMetrics* (*CGFontGetHMetricsPtr) (CGFontRef fontRef) = NULL;
+static int (*CGFontGetAscentPtr) (CGFontRef fontRef) = NULL;
+static int (*CGFontGetDescentPtr) (CGFontRef fontRef) = NULL;
+static int (*CGFontGetLeadingPtr) (CGFontRef fontRef) = NULL;
+
+static cairo_bool_t _cairo_quartz_font_symbol_lookup_done = FALSE;
+static cairo_bool_t _cairo_quartz_font_symbols_present = FALSE;
+
+static void
+quartz_font_ensure_symbols(void)
+{
+    if (_cairo_quartz_font_symbol_lookup_done)
+	return;
+
+    /* Look for the 10.5 versions first */
+    CGFontGetGlyphBBoxesPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphBBoxes");
+    if (!CGFontGetGlyphBBoxesPtr)
+	CGFontGetGlyphBBoxesPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphBoundingBoxes");
+
+    CGFontGetGlyphsForUnicharsPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphsForUnichars");
+    if (!CGFontGetGlyphsForUnicharsPtr)
+	CGFontGetGlyphsForUnicharsPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphsForUnicodes");
+
+    CGFontGetFontBBoxPtr = dlsym(RTLD_DEFAULT, "CGFontGetFontBBox");
+
+    /* We just need one of these two */
+    CGFontCreateWithFontNamePtr = dlsym(RTLD_DEFAULT, "CGFontCreateWithFontName");
+    CGFontCreateWithNamePtr = dlsym(RTLD_DEFAULT, "CGFontCreateWithName");
+
+    /* These have the same name in 10.4 and 10.5 */
+    CGFontGetUnitsPerEmPtr = dlsym(RTLD_DEFAULT, "CGFontGetUnitsPerEm");
+    CGFontGetGlyphAdvancesPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphAdvances");
+    CGFontGetGlyphPathPtr = dlsym(RTLD_DEFAULT, "CGFontGetGlyphPath");
+
+    CGFontGetHMetricsPtr = dlsym(RTLD_DEFAULT, "CGFontGetHMetrics");
+    CGFontGetAscentPtr = dlsym(RTLD_DEFAULT, "CGFontGetAscent");
+    CGFontGetDescentPtr = dlsym(RTLD_DEFAULT, "CGFontGetDescent");
+    CGFontGetLeadingPtr = dlsym(RTLD_DEFAULT, "CGFontGetLeading");
+
+    if ((CGFontCreateWithFontNamePtr || CGFontCreateWithNamePtr) &&
+	CGFontGetGlyphBBoxesPtr &&
+	CGFontGetGlyphsForUnicharsPtr &&
+	CGFontGetUnitsPerEmPtr &&
+	CGFontGetGlyphAdvancesPtr &&
+	CGFontGetGlyphPathPtr &&
+	(CGFontGetHMetricsPtr || (CGFontGetAscentPtr && CGFontGetDescentPtr && CGFontGetLeadingPtr)))
+	_cairo_quartz_font_symbols_present = TRUE;
+
+    _cairo_quartz_font_symbol_lookup_done = TRUE;
+}
+
+typedef struct _cairo_quartz_font_face cairo_quartz_font_face_t;
+typedef struct _cairo_quartz_scaled_font cairo_quartz_scaled_font_t;
+
+struct _cairo_quartz_scaled_font {
+    cairo_scaled_font_t base;
+};
+
+struct _cairo_quartz_font_face {
+    cairo_font_face_t base;
+
+    CGFontRef cgFont;
+};
+
+/*
+ * font face backend
+ */
+
+static void
+_cairo_quartz_font_face_destroy (void *abstract_face)
+{
+    cairo_quartz_font_face_t *font_face = (cairo_quartz_font_face_t*) abstract_face;
+
+    CGFontRelease (font_face->cgFont);
+}
+
+static cairo_status_t
+_cairo_quartz_font_face_scaled_font_create (void *abstract_face,
+					    const cairo_matrix_t *font_matrix,
+					    const cairo_matrix_t *ctm,
+					    const cairo_font_options_t *options,
+					    cairo_scaled_font_t **font_out)
+{
+    cairo_quartz_font_face_t *font_face = abstract_face;
+    cairo_quartz_scaled_font_t *font = NULL;
+    cairo_status_t status;
+    cairo_font_extents_t fs_metrics;
+    double ems;
+    CGRect bbox;
+
+    quartz_font_ensure_symbols();
+    if (!_cairo_quartz_font_symbols_present)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    font = malloc(sizeof(cairo_quartz_scaled_font_t));
+    if (font == NULL)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    memset (font, 0, sizeof(cairo_quartz_scaled_font_t));
+
+    status = _cairo_scaled_font_init (&font->base,
+				      &font_face->base, font_matrix, ctm, options,
+				      &_cairo_quartz_scaled_font_backend);
+    if (status)
+	goto FINISH;
+
+    ems = CGFontGetUnitsPerEmPtr (font_face->cgFont);
+
+    /* initialize metrics */
+    if (CGFontGetFontBBoxPtr && CGFontGetAscentPtr) {
+	fs_metrics.ascent = (CGFontGetAscentPtr (font_face->cgFont) / ems);
+	fs_metrics.descent = - (CGFontGetDescentPtr (font_face->cgFont) / ems);
+	fs_metrics.height = fs_metrics.ascent + fs_metrics.descent +
+	    (CGFontGetLeadingPtr (font_face->cgFont) / ems);
+
+	bbox = CGFontGetFontBBoxPtr (font_face->cgFont);
+	fs_metrics.max_x_advance = CGRectGetMaxX(bbox) / ems;
+	fs_metrics.max_y_advance = 0.0;
+    } else {
+	CGGlyph wGlyph;
+	UniChar u;
+
+	quartz_CGFontMetrics *m;
+	m = CGFontGetHMetricsPtr (font_face->cgFont);
+
+	/* On OX 10.4, GetHMetricsPtr sometimes returns NULL for unknown reasons */
+	if (!m) {
+	    status = _cairo_error(CAIRO_STATUS_NULL_POINTER);
+	    goto FINISH;
+	}
+
+	fs_metrics.ascent = (m->ascent / ems);
+	fs_metrics.descent = - (m->descent / ems);
+	fs_metrics.height = fs_metrics.ascent + fs_metrics.descent + (m->leading / ems);
+
+	/* We kind of have to guess here; W's big, right? */
+	u = (UniChar) 'W';
+	CGFontGetGlyphsForUnicharsPtr (font_face->cgFont, &u, &wGlyph, 1);
+	if (wGlyph && CGFontGetGlyphBBoxesPtr (font_face->cgFont, &wGlyph, 1, &bbox)) {
+	    fs_metrics.max_x_advance = CGRectGetMaxX(bbox) / ems;
+	    fs_metrics.max_y_advance = 0.0;
+	} else {
+	    fs_metrics.max_x_advance = 0.0;
+	    fs_metrics.max_y_advance = 0.0;
+	}
+    }
+
+    status = _cairo_scaled_font_set_metrics (&font->base, &fs_metrics);
+
+FINISH:
+    if (status != CAIRO_STATUS_SUCCESS) {
+	free (font);
+    } else {
+	*font_out = (cairo_scaled_font_t*) font;
+    }
+
+    return status;
+}
+
+static const cairo_font_face_backend_t _cairo_quartz_font_face_backend = {
+    CAIRO_FONT_TYPE_QUARTZ,
+    _cairo_quartz_font_face_destroy,
+    NULL, /* direct implementation */
+    _cairo_quartz_font_face_scaled_font_create
+};
+
+/**
+ * cairo_quartz_font_face_create_for_cgfont
+ * @font: a #CGFontRef obtained through a method external to cairo.
+ *
+ * Creates a new font for the Quartz font backend based on a
+ * #CGFontRef.  This font can then be used with
+ * cairo_set_font_face() or cairo_scaled_font_create().
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ *  cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.6
+ */
+cairo_font_face_t *
+cairo_quartz_font_face_create_for_cgfont (CGFontRef font)
+{
+    cairo_quartz_font_face_t *font_face;
+
+    quartz_font_ensure_symbols();
+
+    font_face = malloc (sizeof (cairo_quartz_font_face_t));
+    if (!font_face) {
+	_cairo_error (CAIRO_STATUS_NO_MEMORY);
+	return (cairo_font_face_t *)&_cairo_font_face_nil;
+    }
+
+    font_face->cgFont = CGFontRetain (font);
+
+    _cairo_font_face_init (&font_face->base, &_cairo_quartz_font_face_backend);
+
+    return &font_face->base;
+}
+
+/*
+ * scaled font backend
+ */
+
+static cairo_quartz_font_face_t *
+_cairo_quartz_scaled_to_face (void *abstract_font)
+{
+    cairo_quartz_scaled_font_t *sfont = (cairo_quartz_scaled_font_t*) abstract_font;
+    cairo_font_face_t *font_face = cairo_scaled_font_get_font_face (&sfont->base);
+    if (!font_face || font_face->backend->type != CAIRO_FONT_TYPE_QUARTZ)
+	return NULL;
+
+    return (cairo_quartz_font_face_t*) font_face;
+}
+
+static cairo_status_t
+_cairo_quartz_font_get_implementation (cairo_toy_font_face_t *toy_face,
+				       cairo_scaled_font_t **font_face_out)
+{
+    static cairo_user_data_key_t impl_font_face_key;
+    cairo_font_face_t *face;
+    cairo_status_t status;
+    const char *family = toy_face->family;
+    char *full_name = malloc(strlen(family) + 64); // give us a bit of room to tack on Bold, Oblique, etc.
+    CFStringRef cgFontName = NULL;
+    CGFontRef cgFont = NULL;
+    int loop;
+
+    face = cairo_font_face_get_user_data (&toy_face->base,
+					  &impl_font_face_key);
+    if (face) {
+	*font_face_out = face;
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    quartz_font_ensure_symbols();
+    if (! _cairo_quartz_font_symbols_present)
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+
+    /* handle CSS-ish faces */
+    if (!strcmp(family, "serif") || !strcmp(family, "Times Roman"))
+	family = "Times";
+    else if (!strcmp(family, "sans-serif") || !strcmp(family, "sans"))
+	family = "Helvetica";
+    else if (!strcmp(family, "cursive"))
+	family = "Apple Chancery";
+    else if (!strcmp(family, "fantasy"))
+	family = "Papyrus";
+    else if (!strcmp(family, "monospace") || !strcmp(family, "mono"))
+	family = "Courier";
+
+    /* Try to build up the full name, e.g. "Helvetica Bold Oblique" first,
+     * then drop the bold, then drop the slant, then drop both.. finally
+     * just use "Helvetica".  And if Helvetica doesn't exist, give up.
+     */
+    for (loop = 0; loop < 5; loop++) {
+	if (loop == 4)
+	    family = "Helvetica";
+
+	strcpy (full_name, family);
+
+	if (loop < 3 && (loop & 1) == 0) {
+	    if (toy_face->weight == CAIRO_FONT_WEIGHT_BOLD)
+		strcat (full_name, " Bold");
+	}
+
+	if (loop < 3 && (loop & 2) == 0) {
+	    if (toy_face->slant == CAIRO_FONT_SLANT_ITALIC)
+		strcat (full_name, " Italic");
+	    else if (toy_face->slant == CAIRO_FONT_SLANT_OBLIQUE)
+		strcat (full_name, " Oblique");
+	}
+
+	if (CGFontCreateWithFontNamePtr) {
+	    cgFontName = CFStringCreateWithCString (NULL, full_name, kCFStringEncodingASCII);
+	    cgFont = CGFontCreateWithFontNamePtr (cgFontName);
+	    CFRelease (cgFontName);
+	} else {
+	    cgFont = CGFontCreateWithNamePtr (full_name);
+	}
+
+	if (cgFont)
+	    break;
+    }
+
+    if (!cgFont) {
+	/* Give up */
+	return _cairo_error (CAIRO_STATUS_NO_MEMORY);
+    }
+
+    face = cairo_quartz_font_face_create_for_cgfont (cgFont);
+    CGFontRelease (cgFont);
+
+    if (face->status)
+	return face->status;
+
+    status = cairo_font_face_set_user_data (&toy_face->base,
+					    &impl_font_face_key,
+					    face,
+					    (cairo_destroy_func_t) cairo_font_face_destroy);
+
+    if (status) {
+	cairo_font_face_destroy (face);
+	return status;
+    }
+
+    *font_face_out = face;
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_quartz_font_create_toy (cairo_toy_font_face_t *toy_face,
+			       const cairo_matrix_t *font_matrix,
+			       const cairo_matrix_t *ctm,
+			       const cairo_font_options_t *options,
+			       cairo_scaled_font_t **font_out)
+{
+    cairo_font_face_t *face;
+    cairo_scaled_font_t *scaled_font;
+    cairo_status_t status;
+
+    status = _cairo_quartz_font_get_implementation (toy_face, &face);
+    if (status)
+	return status;
+
+    status = _cairo_quartz_font_face_scaled_font_create (face,
+							 font_matrix, ctm,
+							 options,
+							 &scaled_font);
+    cairo_font_face_destroy (face);
+    if (status)
+	return status;
+
+    *font_out = scaled_font;
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static void
+_cairo_quartz_font_fini(void *abstract_font)
+{
+}
+
+#define INVALID_GLYPH 0x00
+
+static inline CGGlyph
+_cairo_quartz_scaled_glyph_index (cairo_scaled_glyph_t *scaled_glyph) {
+    unsigned long index = _cairo_scaled_glyph_index (scaled_glyph);
+    if (index > 0xffff)
+	return INVALID_GLYPH;
+    return (CGGlyph) index;
+}
+
+static inline cairo_status_t
+_cairo_matrix_to_unit_quartz_matrix (const cairo_matrix_t *m, CGAffineTransform *txout,
+				     double *xout, double *yout)
+{
+    CGAffineTransform transform;
+    double xscale, yscale;
+    cairo_status_t status;
+
+    status = _cairo_matrix_compute_basis_scale_factors (m, &xscale, &yscale, 1);
+    if (status)
+	return status;
+
+    transform = CGAffineTransformMake (m->xx, - m->yx,
+				       - m->xy, m->yy,
+				       0.0f, 0.0f);
+    if (xout)
+	*xout = xscale;
+    if (yout)
+	*yout = yscale;
+
+    if (xscale)
+	xscale = 1.0 / xscale;
+    if (yscale)
+	yscale = 1.0 / yscale;
+
+    *txout = CGAffineTransformScale (transform, xscale, yscale);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_quartz_init_glyph_metrics (cairo_quartz_scaled_font_t *font,
+				  cairo_scaled_glyph_t *scaled_glyph)
+{
+    cairo_int_status_t status = CAIRO_STATUS_SUCCESS;
+
+    cairo_quartz_font_face_t *font_face = _cairo_quartz_scaled_to_face(font);
+    cairo_text_extents_t extents = {0, 0, 0, 0, 0, 0};
+    CGAffineTransform textMatrix;
+    CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph);
+    int advance;
+    CGRect bbox;
+    double emscale = CGFontGetUnitsPerEmPtr (font_face->cgFont);
+    double xscale, yscale;
+    double xmin, ymin, xmax, ymax;
+
+    if (glyph == INVALID_GLYPH)
+	goto FAIL;
+
+    if (!CGFontGetGlyphAdvancesPtr (font_face->cgFont, &glyph, 1, &advance) ||
+	!CGFontGetGlyphBBoxesPtr (font_face->cgFont, &glyph, 1, &bbox))
+	goto FAIL;
+
+    status = _cairo_matrix_compute_basis_scale_factors (&font->base.scale,
+						  &xscale, &yscale, 1);
+    if (status)
+	goto FAIL;
+
+    bbox = CGRectMake (bbox.origin.x / emscale,
+		       bbox.origin.y / emscale,
+		       bbox.size.width / emscale,
+		       bbox.size.height / emscale);
+
+    /* Should we want to always integer-align glyph extents, we can do so in this way */
+#if 0
+    {
+	CGAffineTransform textMatrix;
+	textMatrix = CGAffineTransformMake (font->base.scale.xx,
+					    -font->base.scale.yx,
+					    -font->base.scale.xy,
+					    font->base.scale.yy,
+					    0.0f, 0.0f);
+
+	bbox = CGRectApplyAffineTransform (bbox, textMatrix);
+	bbox = CGRectIntegral (bbox);
+	bbox = CGRectApplyAffineTransform (bbox, CGAffineTransformInvert (textMatrix));
+    }
+#endif
+
+#if 0
+    fprintf (stderr, "[0x%04x] bbox: %f %f %f %f\n", glyph,
+	     bbox.origin.x / emscale, bbox.origin.y / emscale,
+	     bbox.size.width / emscale, bbox.size.height / emscale);
+#endif
+
+    xmin = CGRectGetMinX(bbox);
+    ymin = CGRectGetMinY(bbox);
+    xmax = CGRectGetMaxX(bbox);
+    ymax = CGRectGetMaxY(bbox);
+
+    extents.x_bearing = xmin;
+    extents.y_bearing = - ymax;
+    extents.width = xmax - xmin;
+    extents.height = ymax - ymin;
+
+    extents.x_advance = (double) advance / emscale;
+    extents.y_advance = 0.0;
+
+#if 0
+    fprintf (stderr, "[0x%04x] extents: bearings: %f %f dim: %f %f adv: %f\n\n", glyph,
+	     extents.x_bearing, extents.y_bearing, extents.width, extents.height, extents.x_advance);
+#endif
+
+  FAIL:
+    _cairo_scaled_glyph_set_metrics (scaled_glyph,
+				     &font->base,
+				     &extents);
+
+    return status;
+}
+
+static void
+_cairo_quartz_path_apply_func (void *info, const CGPathElement *el)
+{
+    cairo_path_fixed_t *path = (cairo_path_fixed_t *) info;
+
+    switch (el->type) {
+	case kCGPathElementMoveToPoint:
+	    _cairo_path_fixed_move_to (path,
+				       _cairo_fixed_from_double(el->points[0].x),
+				       _cairo_fixed_from_double(el->points[0].y));
+	    break;
+	case kCGPathElementAddLineToPoint:
+	    _cairo_path_fixed_line_to (path,
+				       _cairo_fixed_from_double(el->points[0].x),
+				       _cairo_fixed_from_double(el->points[0].y));
+	    break;
+	case kCGPathElementAddQuadCurveToPoint: {
+	    cairo_fixed_t fx, fy;
+	    double x, y;
+	    if (!_cairo_path_fixed_get_current_point (path, &fx, &fy))
+		fx = fy = 0;
+	    x = _cairo_fixed_to_double (fx);
+	    y = _cairo_fixed_to_double (fy);
+
+	    _cairo_path_fixed_curve_to (path,
+					_cairo_fixed_from_double((x + el->points[0].x * 2.0) / 3.0),
+					_cairo_fixed_from_double((y + el->points[0].y * 2.0) / 3.0),
+					_cairo_fixed_from_double((el->points[0].x * 2.0 + el->points[1].x) / 3.0),
+					_cairo_fixed_from_double((el->points[0].y * 2.0 + el->points[1].y) / 3.0),
+					_cairo_fixed_from_double(el->points[1].x),
+					_cairo_fixed_from_double(el->points[1].y));
+	}
+	    break;
+	case kCGPathElementAddCurveToPoint:
+	    _cairo_path_fixed_curve_to (path,
+					_cairo_fixed_from_double(el->points[0].x),
+					_cairo_fixed_from_double(el->points[0].y),
+					_cairo_fixed_from_double(el->points[1].x),
+					_cairo_fixed_from_double(el->points[1].y),
+					_cairo_fixed_from_double(el->points[2].x),
+					_cairo_fixed_from_double(el->points[2].y));
+	    break;
+	case kCGPathElementCloseSubpath:
+	    _cairo_path_fixed_close_path (path);
+	    break;
+    }
+}
+
+static cairo_int_status_t
+_cairo_quartz_init_glyph_path (cairo_quartz_scaled_font_t *font,
+			       cairo_scaled_glyph_t *scaled_glyph)
+{
+    cairo_quartz_font_face_t *font_face = _cairo_quartz_scaled_to_face(font);
+    CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph);
+    CGAffineTransform textMatrix;
+    CGPathRef glyphPath;
+    cairo_path_fixed_t *path;
+
+    if (glyph == INVALID_GLYPH) {
+	_cairo_scaled_glyph_set_path (scaled_glyph, &font->base, _cairo_path_fixed_create());
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    textMatrix = CGAffineTransformMake (font->base.scale.xx,
+					-font->base.scale.yx,
+					-font->base.scale.xy,
+					font->base.scale.yy,
+					font->base.scale.x0,
+					font->base.scale.y0);
+
+    textMatrix = CGAffineTransformConcat (textMatrix, CGAffineTransformMake (1.0, 0.0, 0.0, -1.0, 0.0, 0.0));
+
+    glyphPath = CGFontGetGlyphPathPtr (font_face->cgFont, &textMatrix, 0, glyph);
+    if (!glyphPath)
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+
+    path = _cairo_path_fixed_create ();
+    if (!path) {
+	CGPathRelease (glyphPath);
+	return _cairo_error(CAIRO_STATUS_NO_MEMORY);
+    }
+
+    CGPathApply (glyphPath, path, _cairo_quartz_path_apply_func);
+
+    CGPathRelease (glyphPath);
+
+    _cairo_scaled_glyph_set_path (scaled_glyph, &font->base, path);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_int_status_t
+_cairo_quartz_init_glyph_surface (cairo_quartz_scaled_font_t *font,
+				  cairo_scaled_glyph_t *scaled_glyph)
+{
+    cairo_int_status_t status = CAIRO_STATUS_SUCCESS;
+
+    cairo_quartz_font_face_t *font_face = _cairo_quartz_scaled_to_face(font);
+
+    cairo_image_surface_t *surface = NULL;
+
+    CGGlyph glyph = _cairo_quartz_scaled_glyph_index (scaled_glyph);
+
+    int advance;
+    CGRect bbox;
+    double width, height;
+    double xscale, yscale;
+    double emscale = CGFontGetUnitsPerEmPtr (font_face->cgFont);
+
+    CGColorSpaceRef gray;
+    CGContextRef cgContext = NULL;
+    CGAffineTransform textMatrix;
+    CGRect glyphRect, glyphRectInt;
+    CGPoint glyphOrigin;
+
+    //fprintf (stderr, "scaled_glyph: %p surface: %p\n", scaled_glyph, scaled_glyph->surface);
+
+    /* Create blank 2x2 image if we don't have this character.
+     * Maybe we should draw a better missing-glyph slug or something,
+     * but this is ok for now.
+     */
+    if (glyph == INVALID_GLYPH) {
+	surface = (cairo_image_surface_t*) cairo_image_surface_create (CAIRO_FORMAT_A8, 2, 2);
+	status = cairo_surface_status ((cairo_surface_t *) surface);
+	if (status)
+	    return status;
+
+	_cairo_scaled_glyph_set_surface (scaled_glyph,
+					 &font->base,
+					 surface);
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    if (!CGFontGetGlyphAdvancesPtr (font_face->cgFont, &glyph, 1, &advance) ||
+	!CGFontGetGlyphBBoxesPtr (font_face->cgFont, &glyph, 1, &bbox))
+    {
+	return CAIRO_INT_STATUS_UNSUPPORTED;
+    }
+
+    status = _cairo_matrix_compute_basis_scale_factors (&font->base.scale,
+						  &xscale, &yscale, 1);
+    if (status)
+	return status;
+
+    textMatrix = CGAffineTransformMake (font->base.scale.xx,
+					-font->base.scale.yx,
+					-font->base.scale.xy,
+					font->base.scale.yy,
+					0.0f, 0.0f);
+    glyphRect = CGRectMake (bbox.origin.x / emscale,
+			    bbox.origin.y / emscale,
+			    bbox.size.width / emscale,
+			    bbox.size.height / emscale);
+
+    glyphRect = CGRectApplyAffineTransform (glyphRect, textMatrix);
+
+    /* Round the rectangle outwards, so that we don't have to deal
+     * with non-integer-pixel origins or dimensions.
+     */
+    glyphRectInt = CGRectIntegral (glyphRect);
+
+#if 0
+    fprintf (stderr, "glyphRect[o]: %f %f %f %f\n",
+	     glyphRect.origin.x, glyphRect.origin.y, glyphRect.size.width, glyphRect.size.height);
+    fprintf (stderr, "glyphRectInt: %f %f %f %f\n",
+	     glyphRectInt.origin.x, glyphRectInt.origin.y, glyphRectInt.size.width, glyphRectInt.size.height);
+#endif
+
+    glyphOrigin = glyphRectInt.origin;
+
+    //textMatrix = CGAffineTransformConcat (textMatrix, CGAffineTransformInvert (ctm));
+
+    width = glyphRectInt.size.width;
+    height = glyphRectInt.size.height;
+
+    //fprintf (stderr, "glyphRect[n]: %f %f %f %f\n", glyphRect.origin.x, glyphRect.origin.y, glyphRect.size.width, glyphRect.size.height);
+
+    surface = (cairo_image_surface_t*) cairo_image_surface_create (CAIRO_FORMAT_A8, width, height);
+    if (surface->base.status)
+	return surface->base.status;
+
+    gray = CGColorSpaceCreateDeviceGray ();
+    cgContext = CGBitmapContextCreate (surface->data,
+				       surface->width,
+				       surface->height,
+				       8,
+				       surface->stride,
+				       gray,
+				       kCGImageAlphaNone);
+    CGColorSpaceRelease (gray);
+
+    CGContextSetFont (cgContext, font_face->cgFont);
+    CGContextSetFontSize (cgContext, 1.0);
+    CGContextSetTextMatrix (cgContext, textMatrix);
+
+    CGContextClearRect (cgContext, CGRectMake (0.0f, 0.0f, width, height));
+
+    if (font->base.options.antialias == CAIRO_ANTIALIAS_NONE)
+	CGContextSetShouldAntialias (cgContext, false);
+
+    CGContextSetRGBFillColor (cgContext, 1.0, 1.0, 1.0, 1.0);
+    CGContextShowGlyphsAtPoint (cgContext, - glyphOrigin.x, - glyphOrigin.y, &glyph, 1);
+
+    CGContextRelease (cgContext);
+
+    cairo_surface_set_device_offset (&surface->base,
+				     - glyphOrigin.x,
+				     height + glyphOrigin.y);
+
+    _cairo_scaled_glyph_set_surface (scaled_glyph, &font->base, surface);
+
+    return status;
+}
+
+static cairo_int_status_t
+_cairo_quartz_font_scaled_glyph_init (void *abstract_font,
+				      cairo_scaled_glyph_t *scaled_glyph,
+				      cairo_scaled_glyph_info_t info)
+{
+    cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t *) abstract_font;
+    cairo_int_status_t status = CAIRO_STATUS_SUCCESS;
+
+    if (!status && (info & CAIRO_SCALED_GLYPH_INFO_METRICS))
+	status = _cairo_quartz_init_glyph_metrics (font, scaled_glyph);
+
+    if (!status && (info & CAIRO_SCALED_GLYPH_INFO_PATH))
+	status = _cairo_quartz_init_glyph_path (font, scaled_glyph);
+
+    if (!status && (info & CAIRO_SCALED_GLYPH_INFO_SURFACE))
+	status = _cairo_quartz_init_glyph_surface (font, scaled_glyph);
+
+    return status;
+}
+
+static unsigned long
+_cairo_quartz_ucs4_to_index (void *abstract_font,
+			     uint32_t ucs4)
+{
+    cairo_quartz_scaled_font_t *font = (cairo_quartz_scaled_font_t*) abstract_font;
+    cairo_quartz_font_face_t *ffont = _cairo_quartz_scaled_to_face(font);
+    UniChar u = (UniChar) ucs4;
+    CGGlyph glyph;
+
+    CGFontGetGlyphsForUnicharsPtr (ffont->cgFont, &u, &glyph, 1);
+
+    return glyph;
+}
+
+const cairo_scaled_font_backend_t _cairo_quartz_scaled_font_backend = {
+    CAIRO_FONT_TYPE_QUARTZ,
+    _cairo_quartz_font_get_implementation,
+    _cairo_quartz_font_create_toy,
+    _cairo_quartz_font_fini,
+    _cairo_quartz_font_scaled_glyph_init,
+    NULL, /* text_to_glyphs */
+    _cairo_quartz_ucs4_to_index,
+    NULL, /* show_glyphs */
+    NULL, /* load_truetype_table */
+    NULL, /* map_glyphs_to_unicode */
+};
+
+/*
+ * private methods that the quartz surface uses
+ */
+
+CGFontRef
+_cairo_quartz_scaled_font_get_cg_font_ref (cairo_scaled_font_t *abstract_font)
+{
+    cairo_quartz_font_face_t *ffont = _cairo_quartz_scaled_to_face(abstract_font);
+
+    return ffont->cgFont;
+}
+
+
+/*
+ * compat with old ATSUI backend
+ */
+
+/**
+ * cairo_quartz_font_face_create_for_atsu_font_id
+ * @font_id: an ATSUFontID for the font.
+ *
+ * Creates a new font for the Quartz font backend based on an
+ * #ATSUFontID. This font can then be used with
+ * cairo_set_font_face() or cairo_scaled_font_create().
+ *
+ * Return value: a newly created #cairo_font_face_t. Free with
+ *  cairo_font_face_destroy() when you are done using it.
+ *
+ * Since: 1.6
+ **/
+cairo_font_face_t *
+cairo_quartz_font_face_create_for_atsu_font_id (ATSUFontID font_id)
+{
+    ATSFontRef atsFont = FMGetATSFontRefFromFont (font_id);
+    CGFontRef cgFont = CGFontCreateWithPlatformFont (&atsFont);
+    cairo_font_face_t *ff;
+
+    ff = cairo_quartz_font_face_create_for_cgfont (cgFont);
+
+    CGFontRelease (cgFont);
+
+    return ff;
+}
+
+/* This is the old name for the above function, exported for compat purposes */
+cairo_font_face_t *cairo_atsui_font_face_create_for_atsu_font_id (ATSUFontID font_id);
+
+cairo_font_face_t *
+cairo_atsui_font_face_create_for_atsu_font_id (ATSUFontID font_id)
+{
+    return cairo_quartz_font_face_create_for_atsu_font_id (font_id);
+}

uppdev/plugin/cairo/lib/cairo-quartz-image-surface.c

@@ -0,0 +1,286 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright <EFBFBD> 2008 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation.
+ *
+ * Contributor(s):
+ *	Vladimir Vukicevic <vladimir@mozilla.com>
+ */
+
+#include "cairoint.h"
+
+#include "cairo-quartz-image.h"
+#include "cairo-quartz-private.h"
+
+#define SURFACE_ERROR_NO_MEMORY (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_NO_MEMORY)))
+#define SURFACE_ERROR_TYPE_MISMATCH (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_SURFACE_TYPE_MISMATCH)))
+#define SURFACE_ERROR_INVALID_FORMAT (_cairo_surface_create_in_error(_cairo_error(CAIRO_STATUS_INVALID_FORMAT)))
+
+static void
+DataProviderReleaseCallback (void *info, const void *data, size_t size)
+{
+    cairo_surface_t *surface = (cairo_surface_t *) info;
+    cairo_surface_destroy (surface);
+}
+
+static cairo_surface_t *
+_cairo_quartz_image_surface_create_similar (void *asurface,
+					    cairo_content_t content,
+					    int width,
+					    int height)
+{
+    cairo_surface_t *result;
+    cairo_surface_t *isurf = cairo_image_surface_create (_cairo_format_from_content (content),
+							 width,
+							 height);
+    if (cairo_surface_status(isurf))
+	return isurf;
+
+    result = cairo_quartz_image_surface_create (isurf);
+    cairo_surface_destroy (isurf);
+
+    return result;
+}
+
+static cairo_status_t
+_cairo_quartz_image_surface_finish (void *asurface)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface;
+
+    /* the imageSurface will be destroyed by the data provider's release callback */
+    CGImageRelease (surface->image);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_quartz_image_surface_acquire_source_image (void *asurface,
+						  cairo_image_surface_t **image_out,
+						  void **image_extra)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface;
+
+    *image_out = surface->imageSurface;
+    *image_extra = NULL;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_quartz_image_surface_acquire_dest_image (void *asurface,
+						cairo_rectangle_int_t *interest_rect,
+						cairo_image_surface_t **image_out,
+						cairo_rectangle_int_t *image_rect,
+						void **image_extra)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface;
+
+    *image_out = surface->imageSurface;
+    *image_rect = surface->extents;
+    *image_extra = NULL;
+
+    return CAIRO_STATUS_SUCCESS;
+   
+}
+
+static cairo_int_status_t
+_cairo_quartz_image_surface_get_extents (void *asurface,
+					 cairo_rectangle_int_t *extents)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface;
+
+    *extents = surface->extents;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+/* we assume some drawing happened to the image buffer; make sure it's
+ * represented in the CGImage on flush()
+ */
+
+static cairo_status_t
+_cairo_quartz_image_surface_flush (void *asurface)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t *) asurface;
+    CGImageRef oldImage = surface->image;
+    CGImageRef newImage = NULL;
+
+    /* To be released by the ReleaseCallback */
+    cairo_surface_reference ((cairo_surface_t*) surface->imageSurface);
+
+    newImage = _cairo_quartz_create_cgimage (surface->imageSurface->format,
+					     surface->imageSurface->width,
+					     surface->imageSurface->height,
+					     surface->imageSurface->stride,
+					     surface->imageSurface->data,
+					     TRUE,
+					     NULL,
+					     DataProviderReleaseCallback,
+					     surface->imageSurface);
+
+    surface->image = newImage;
+    CGImageRelease (oldImage);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static const cairo_surface_backend_t cairo_quartz_image_surface_backend = {
+    CAIRO_SURFACE_TYPE_QUARTZ_IMAGE,
+    _cairo_quartz_image_surface_create_similar,
+    _cairo_quartz_image_surface_finish,
+    _cairo_quartz_image_surface_acquire_source_image,
+    NULL, /* release_source_image */
+    _cairo_quartz_image_surface_acquire_dest_image,
+    NULL, /* release_dest_image */
+    NULL, /* clone_similar */
+    NULL, /* composite */
+    NULL, /* fill_rectangles */
+    NULL, /* composite_trapezoids */
+    NULL, /* copy_page */
+    NULL, /* show_page */
+    NULL, /* set_clip_region */
+    NULL, /* intersect_clip_path */
+    _cairo_quartz_image_surface_get_extents,
+    NULL, /* old_show_glyphs */
+    NULL, /* get_font_options */
+    _cairo_quartz_image_surface_flush,
+    NULL, /* mark_dirty_rectangle */
+    NULL, /* scaled_font_fini */
+    NULL, /* scaled_glyph_fini */
+
+    NULL, /* paint */
+    NULL, /* mask */
+    NULL, /* stroke */
+    NULL, /* fill */
+    NULL, /* surface_show_glyphs */
+    NULL, /* snapshot */
+    NULL, /* is_similar */
+    NULL, /* reset */
+    NULL  /* fill_stroke */
+
+};
+
+/**
+ * cairo_quartz_image_surface_create
+ * @surface: a cairo image surface to wrap with a quartz image surface
+ *
+ * Creates a Quartz surface backed by a CGImageRef that references the
+ * given image surface. The resulting surface can be rendered quickly
+ * when used as a source when rendering to a #cairo_quartz_surface.  If
+ * the data in the image surface is ever updated, cairo_surface_flush()
+ * must be called on the #cairo_quartz_image_surface to ensure that the
+ * CGImageRef refers to the updated data.
+ *
+ * Return value: the newly created surface.
+ *
+ * Since: 1.6
+ */
+cairo_surface_t *
+cairo_quartz_image_surface_create (cairo_surface_t *surface)
+{
+    cairo_quartz_image_surface_t *qisurf;
+
+    CGImageRef image;
+
+    cairo_image_surface_t *image_surface;
+    int width, height, stride;
+    cairo_format_t format;
+    unsigned char *data;
+
+    if (cairo_surface_get_type(surface) != CAIRO_SURFACE_TYPE_IMAGE)
+	return SURFACE_ERROR_TYPE_MISMATCH;
+
+    image_surface = (cairo_image_surface_t*) surface;
+    width = image_surface->width;
+    height = image_surface->height;
+    stride = image_surface->stride;
+    format = image_surface->format;
+    data = image_surface->data;
+
+    if (!_cairo_quartz_verify_surface_size(width, height))
+	return SURFACE_ERROR_NO_MEMORY;
+
+    if (width == 0 || height == 0)
+	return SURFACE_ERROR_NO_MEMORY;
+
+    if (format != CAIRO_FORMAT_ARGB32 && format != CAIRO_FORMAT_RGB24)
+	return SURFACE_ERROR_INVALID_FORMAT;
+
+    qisurf = malloc(sizeof(cairo_quartz_image_surface_t));
+    if (qisurf == NULL)
+	return SURFACE_ERROR_NO_MEMORY;
+
+    memset (qisurf, 0, sizeof(cairo_quartz_image_surface_t));
+
+    /* In case the create_cgimage fails, this ref will
+     * be released via the callback (which will be called in
+     * case of failure.)
+     */
+    cairo_surface_reference (surface);
+
+    image = _cairo_quartz_create_cgimage (format,
+					  width, height,
+					  stride,
+					  data,
+					  TRUE,
+					  NULL,
+					  DataProviderReleaseCallback,
+					  image_surface);
+
+    if (!image) {
+	free (qisurf);
+	return SURFACE_ERROR_NO_MEMORY;
+    }
+
+    _cairo_surface_init (&qisurf->base,
+			 &cairo_quartz_image_surface_backend,
+			 _cairo_content_from_format (format));
+
+    qisurf->extents.x = qisurf->extents.y = 0;
+    qisurf->extents.width = width;
+    qisurf->extents.height = height;
+
+    qisurf->image = image;
+    qisurf->imageSurface = image_surface;
+
+    return &qisurf->base;
+}
+
+
+cairo_surface_t *
+cairo_quartz_image_surface_get_image (cairo_surface_t *asurface)
+{
+    cairo_quartz_image_surface_t *surface = (cairo_quartz_image_surface_t*) asurface;
+
+    if (cairo_surface_get_type(asurface) != CAIRO_SURFACE_TYPE_QUARTZ_IMAGE)
+	return NULL;
+
+    return (cairo_surface_t*) surface->imageSurface;
+}

uppdev/plugin/cairo/lib/cairo-quartz-image.h

@@ -0,0 +1,59 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2008 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation.
+ *
+ * Contributor(s):
+ *      Vladimir Vukicevic <vladimir@mozilla.com>
+ */
+
+#ifndef CAIRO_QUARTZ_IMAGE_H
+#define CAIRO_QUARTZ_IMAGE_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_QUARTZ_IMAGE_SURFACE
+
+#include <Carbon/Carbon.h>
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_quartz_image_surface_create (cairo_surface_t *image_surface);
+
+cairo_public cairo_surface_t *
+cairo_quartz_image_surface_get_image (cairo_surface_t *surface);
+
+CAIRO_END_DECLS
+
+#else  /* CAIRO_HAS_QUARTZ_IMAGE_SURFACE */
+# error Cairo was not compiled with support for the quartz-image backend
+#endif /* CAIRO_HAS_QUARTZ_IMAGE_SURFACE */
+
+#endif /* CAIRO_QUARTZ_IMAGE_H */

uppdev/plugin/cairo/lib/cairo-quartz-private.h

@@ -0,0 +1,104 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2004 Calum Robinson
+ * Copyright (C) 2006,2007 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Calum Robinson
+ *
+ * Contributor(s):
+ *    Calum Robinson <calumr@mac.com>
+ *    Vladimir Vukicevic <vladimir@mozilla.com>
+ */
+
+#ifndef CAIRO_QUARTZ_PRIVATE_H
+#define CAIRO_QUARTZ_PRIVATE_H
+
+#include "cairoint.h"
+
+#if CAIRO_HAS_QUARTZ_SURFACE
+#include "cairo-quartz.h"
+
+typedef struct cairo_quartz_surface {
+    cairo_surface_t base;
+
+    CGContextRef cgContext;
+    CGAffineTransform cgContextBaseCTM;
+
+    void *imageData;
+    cairo_surface_t *imageSurfaceEquiv;
+
+    cairo_rectangle_int_t extents;
+
+    /* These are stored while drawing operations are in place, set up
+     * by quartz_setup_source() and quartz_finish_source()
+     */
+    CGAffineTransform sourceTransform;
+
+    CGImageRef sourceImage;
+    cairo_surface_t *sourceImageSurface;
+    CGRect sourceImageRect;
+
+    CGShadingRef sourceShading;
+    CGPatternRef sourcePattern;
+
+    CGInterpolationQuality oldInterpolationQuality;
+} cairo_quartz_surface_t;
+
+typedef struct cairo_quartz_image_surface {
+    cairo_surface_t base;
+
+    cairo_rectangle_int_t extents;
+
+    CGImageRef image;
+    cairo_image_surface_t *imageSurface;
+} cairo_quartz_image_surface_t;
+
+cairo_bool_t
+_cairo_quartz_verify_surface_size(int width, int height);
+
+CGImageRef
+_cairo_quartz_create_cgimage (cairo_format_t format,
+			      unsigned int width,
+			      unsigned int height,
+			      unsigned int stride,
+			      void *data,
+			      cairo_bool_t interpolate,
+			      CGColorSpaceRef colorSpaceOverride,
+			      CGDataProviderReleaseDataCallback releaseCallback,
+			      void *releaseInfo);
+
+CGFontRef
+_cairo_quartz_scaled_font_get_cg_font_ref (cairo_scaled_font_t *sfont);
+
+#else
+
+# error Cairo was not compiled with support for the quartz backend
+
+#endif /* CAIRO_HAS_QUARTZ_SURFACE */
+
+#endif /* CAIRO_QUARTZ_PRIVATE_H */

uppdev/plugin/cairo/lib/cairo-quartz.h

@@ -0,0 +1,82 @@
+/* cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2006, 2007 Mozilla Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Mozilla Corporation.
+ *
+ * Contributor(s):
+ *      Vladimir Vukicevic <vladimir@mozilla.com>
+ */
+
+#ifndef CAIRO_QUARTZ_H
+#define CAIRO_QUARTZ_H
+
+#include "cairo.h"
+
+#if CAIRO_HAS_QUARTZ_SURFACE
+
+#include <ApplicationServices/ApplicationServices.h>
+
+CAIRO_BEGIN_DECLS
+
+cairo_public cairo_surface_t *
+cairo_quartz_surface_create (cairo_format_t format,
+                             unsigned int width,
+                             unsigned int height);
+
+cairo_public cairo_surface_t *
+cairo_quartz_surface_create_for_cg_context (CGContextRef cgContext,
+                                            unsigned int width,
+                                            unsigned int height);
+
+cairo_public CGContextRef
+cairo_quartz_surface_get_cg_context (cairo_surface_t *surface);
+
+#if CAIRO_HAS_QUARTZ_FONT
+
+/*
+ * Quartz font support
+ */
+
+cairo_public cairo_font_face_t *
+cairo_quartz_font_face_create_for_cgfont (CGFontRef font);
+
+cairo_public cairo_font_face_t *
+cairo_quartz_font_face_create_for_atsu_font_id (ATSUFontID font_id);
+
+#endif /* CAIRO_HAS_QUARTZ_FONT */
+
+CAIRO_END_DECLS
+
+#else
+
+# error Cairo was not compiled with support for the quartz backend
+
+#endif /* CAIRO_HAS_QUARTZ_SURFACE */
+
+#endif /* CAIRO_QUARTZ_H */