X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fvertexarraybuilder.cpp;fp=source%2Fvertexarraybuilder.cpp;h=5f469a985173b3f5f8cc0143ebe54406ee393703;hp=0000000000000000000000000000000000000000;hb=85facfb688035b5bbc9a3a87d080582fbf34930b;hpb=fd1b14ee491dfd62881876afe007ac63301b422a

diff --git a/source/vertexarraybuilder.cpp b/source/vertexarraybuilder.cpp
new file mode 100644
index 00000000..5f469a98
--- /dev/null
+++ b/source/vertexarraybuilder.cpp
@@ -0,0 +1,71 @@
+/* $Id$
+
+This file is part of libmspgl
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include "vertexarray.h"
+#include "vertexarraybuilder.h"
+
+namespace Msp {
+namespace GL {
+
+VertexArrayBuilder::VertexArrayBuilder(VertexArray &a, std::vector<float> &d):
+	data(d),
+	array(a)
+{ }
+
+VertexArrayBuilder::~VertexArrayBuilder()
+{
+	array.update_data();
+}
+
+void VertexArrayBuilder::vertex_(float x, float y, float z, float w)
+{
+	for(uint fmt=array.get_format(); fmt; fmt>>=4)
+	{
+		uint size=(fmt&3)+1;
+		switch(fmt&12)
+		{
+		case 0:
+			data.push_back(x);
+			data.push_back(y);
+			if(size>=3) data.push_back(z);
+			if(size>=4) data.push_back(w);
+			break;
+		case 4:
+			data.push_back(nx);
+			data.push_back(ny);
+			data.push_back(nz);
+			break;
+		case 8:
+			data.push_back(ts);
+			if(size>=2) data.push_back(tt);
+			if(size>=3) data.push_back(tr);
+			if(size>=4) data.push_back(tq);
+			break;
+		case 12:
+			if(size==1)
+			{
+				union { ubyte c[4]; float f; } u;
+				u.c[0]=(ubyte)(cr*255);
+				u.c[1]=(ubyte)(cg*255);
+				u.c[2]=(ubyte)(cb*255);
+				u.c[3]=(ubyte)(ca*255);
+				data.push_back(u.f);
+			}
+			else
+			{
+				data.push_back(cr);
+				data.push_back(cg);
+				data.push_back(cb);
+				if(size>=4) data.push_back(ca);
+			}
+			break;
+		}
+	}
+}
+
+} // namespace GL
+} // namespace Msp