Developing new Draw (in uppdev)

git-svn-id: svn://ultimatepp.org/upp/trunk@1128 f0d560ea-af0d-0410-9eb7-867de7ffcac7

uppdev/Draw/DrawData.cpp

@@ -0,0 +1,127 @@
+#include "Draw.h"
+
+NAMESPACE_UPP
+
+#define LTIMING(x)
+// #define BENCHMARK_RLE
+
+VectorMap<String, void *>& DataDrawer::Map()
+{
+	static VectorMap<String, void *> x;
+	return x;
+}
+
+static StaticCriticalSection sDataDrawer;
+
+void DataDrawer::AddFormat(const char *id, Factory factory)
+{
+	INTERLOCKED_(sDataDrawer)
+		Map().Add(id, (void *)factory);
+}
+
+One<DataDrawer> DataDrawer::Create(const String& id)
+{
+	INTERLOCKED_(sDataDrawer) {
+		Factory q = (Factory) Map().Get(id, NULL);
+		if(q)
+			return (*q)();
+	}
+	return NULL;
+}
+
+bool IsWhiteColumn(const Image& m, int x)
+{
+	LTIMING("IsEqColumn");
+	Size sz = m.GetSize();
+	const RGBA *s = ~m + x;
+	while(sz.cy > 1) {
+		s += sz.cx;
+		if((s->a & s->r & s->g & s->b) != 255)
+			return false;
+		sz.cy--;
+	}
+	return true;
+}
+
+
+#ifdef BENCHMARK_RLE
+static int sTotal;
+static int sRle;
+
+EXITBLOCK
+{
+	DUMP(sTotal);
+	DUMP(sRle);
+}
+#endif
+
+void DrawImageBandRLE(Draw& w, int x, int y, const Image& m, int minp)
+{
+	int xi = 0;
+	int cx = m.GetWidth();
+	int ccy = m.GetHeight();
+	Buffer<bool> todo(cx, true);
+#ifdef BENCHMARK_RLE
+	sTotal += cx;
+#endif
+	while(xi < cx) {
+		int xi0 = xi;
+		while(w.Dots() && IsWhiteColumn(m, xi) && xi < cx)
+			xi++;
+		if(xi - xi0 >= 16) {
+#ifdef BENCHMARK_RLE
+			sRle += xi - xi0;
+#endif
+			w.DrawRect(x + xi0, y, xi - xi0, ccy, White);
+			Fill(~todo + xi0, ~todo + xi, false);
+		}
+		xi++;
+	}
+	
+	xi = 0;
+	while(xi < cx)
+		if(todo[xi]) {
+			int xi0 = xi;
+			while(xi < cx && todo[xi] && xi - xi0 < 2000)
+				xi++;
+			m.PaintImage(w, x + xi0, y, RectC(xi0, 0, xi - xi0, ccy), Null);
+		}
+		else
+			xi++;
+}
+
+void Draw::DrawDataOp(int x, int y, int cx, int cy, const String& data, const char *id)
+{
+	DrawLock __;
+	bool tonative = !IsNative();
+	if(tonative) {
+		BeginNative();
+		Native(x, y);
+		Native(cx, cy);
+	}
+	One<DataDrawer> dd = DataDrawer::Create(id);
+	if(dd) {
+		dd->Open(data, cx, cy);
+		if(cx > 2048 || cy > 2048) {
+			int yy = 0;
+			while(yy < cy) {
+				int ccy = min(cy - yy, 32);
+				ImageBuffer ib(cx, ccy);
+				dd->Render(ib);
+				DrawImageBandRLE(*this, x, y + yy, ib, 16);
+				yy += ccy;
+			}
+		}
+		else {
+			ImageBuffer m(cx, cy);
+			dd->Render(m);
+			DrawImage(x, y, m);
+		}
+	}
+	if(tonative)
+		EndNative();
+}
+
+DataDrawer::~DataDrawer() {}
+
+END_UPP_NAMESPACE