plugin/ppm

git-svn-id: svn://ultimatepp.org/upp/trunk@7264 f0d560ea-af0d-0410-9eb7-867de7ffcac7

uppsrc/plugin/ppm/init

@@ -0,0 +1,6 @@
+#ifndef _plugin_ppm_icpp_init_stub
+#define _plugin_ppm_icpp_init_stub
+#define BLITZ_INDEX__ Fdf120578bb798e5c9b5d622a2a6f7bf4
+#include "ppmref.icpp"
+#undef BLITZ_INDEX__
+#endif

uppsrc/plugin/ppm/ppm.cpp

@@ -0,0 +1,107 @@
+#include "ppm.h"
+
+NAMESPACE_UPP
+
+PPMRaster::PPMRaster()
+{
+	size = Size(0, 0);
+	is16 = false;
+}
+
+bool PPMRaster::Create()
+{
+	Stream& stream = GetStream();
+	size = Size(0, 0);
+	if(!stream.IsOpen()) {
+		SetError();
+		return false;
+	}
+
+	try {
+		if(stream.GetLine() != "P6")
+			return false;
+		String h = stream.GetLine();
+		CParser p(h);
+		size.cx = p.ReadInt();
+		size.cy = p.ReadInt();
+		if(size.cx <= 0 && size.cx > 99999 || size.cy <= 0 || size.cy >= 99999)
+			return false;
+		h = stream.GetLine();
+		CParser p1(h);
+		int maxval = p1.ReadInt();
+		if(maxval <= 0 && maxval > 65535)
+			return false;
+		is16 = maxval > 255;
+		pixel_pos = stream.GetPos();
+		return true;
+	}
+	catch(CParser::Error) {
+		return false;
+	}
+}
+
+Raster::Info PPMRaster::GetInfo()
+{
+	return Raster::Info();
+}
+
+Size PPMRaster::GetSize()
+{
+	return size;
+}
+
+Raster::Line PPMRaster::GetLine(int ii)
+{
+	Stream& stream = GetStream();
+	Line line;
+	int row_bytes = size.cx * 3;
+	byte *ptr = new byte[size.cx * 3];
+	if(!IsError()) {
+		Stream& stream = GetStream();
+		stream.Seek(pixel_pos + ii * row_bytes * (1 + is16));
+		if(is16) {
+			byte *t = ptr;
+			for(int n = size.cx; n-- >= 0;) {
+				int q = stream.Get();
+				if(q < 0) {
+					SetError();
+					break;
+				}
+				*t++ = q; stream.Get();
+			}
+			return Line(ptr, this, true);
+		}
+		else {
+			if(!stream.GetAll(ptr, row_bytes))
+				SetError();
+		}
+	}
+	if(IsError())
+		memset(ptr, 0, row_bytes);
+	return Line(ptr, this, true);
+}
+
+int PPMRaster::GetPaletteCount()
+{
+	return 0;
+}
+
+RGBA * PPMRaster::GetPalette()
+{
+	return NULL;
+}
+
+const RasterFormat * PPMRaster::GetFormat()
+{
+	static RasterFormat fmt;
+	ONCELOCK {
+		fmt.Set24be(0xff0000, 0x00ff00, 0x0000ff);
+	}
+	return &fmt;
+}
+
+PPMRaster::~PPMRaster()
+{
+}
+
+END_UPP_NAMESPACE

uppsrc/plugin/ppm/ppm.h

@@ -0,0 +1,38 @@
+#ifndef _plugin_bmp_bmp_h_
+#define _plugin_bmp_bmp_h_
+
+#include <Draw/Draw.h>
+
+NAMESPACE_UPP
+
+class PPMRaster : public StreamRaster {
+	Size         size;
+	bool         is16;
+	RasterFormat fmt;
+	int64        pixel_pos;
+
+public:
+	virtual bool    Create();
+	virtual Info    GetInfo();
+	virtual Size    GetSize();
+	virtual Line    GetLine(int line);
+	virtual int     GetPaletteCount();
+	virtual RGBA   *GetPalette();
+	virtual const RasterFormat *GetFormat();
+
+	PPMRaster();
+	~PPMRaster();
+};
+
+class PPMEncoder : public StreamRasterEncoder {
+	Size         size;
+
+public:
+	virtual int  GetPaletteCount();
+	virtual void Start(Size sz);
+	virtual void WriteLineRaw(const byte *data);
+};
+
+END_UPP_NAMESPACE
+
+#endif

uppsrc/plugin/ppm/ppm.upp

@@ -0,0 +1,6 @@
+file
+	ppm.h,
+	ppmref.icpp,
+	ppm.cpp,
+	ppmenc.cpp;
+

uppsrc/plugin/ppm/ppmenc.cpp

@@ -0,0 +1,22 @@
+#include "ppm.h"
+
+NAMESPACE_UPP
+
+int PPMEncoder::GetPaletteCount()
+{
+	return 0;
+}
+
+void PPMEncoder::Start(Size sz)
+{
+	size = sz;
+	format.Set24be(0xff0000, 0x00ff00, 0x0000ff);
+	GetStream() << "P6\n" << AsString(sz.cx) << ' ' << AsString(sz.cy) << "\n" << 255 << "\n";
+}
+
+void PPMEncoder::WriteLineRaw(const byte *data)
+{
+	GetStream().Put(data, size.cx * 3);
+}
+
+END_UPP_NAMESPACE

uppsrc/plugin/ppm/ppmref.icpp

@@ -0,0 +1,9 @@
+#include "ppm.h"
+
+NAMESPACE_UPP
+
+INITBLOCK {
+	StreamRaster::Register<PPMRaster>();
+}
+
+END_UPP_NAMESPACE