Rearrange soucre files into subdirectories

[libs/gl.git] / source / builders / vertexarraybuilder.cpp

diff --git a/source/builders/vertexarraybuilder.cpp b/source/builders/vertexarraybuilder.cpp
new file mode 100644 (file)
index 0000000..55b2a6a
--- /dev/null
+++ b/source/builders/vertexarraybuilder.cpp
@@ -0,0 +1,60 @@
+#include "vertexarray.h"
+#include "vertexarraybuilder.h"
+
+namespace Msp {
+namespace GL {
+
+VertexArrayBuilder::VertexArrayBuilder(VertexArray &a):
+       array(a)
+{ }
+
+void VertexArrayBuilder::vertex_(const Vector4 &ver)
+{
+       float *ptr = array.append();
+       for(const unsigned char *c=array.get_format().begin(); c!=array.get_format().end(); ++c)
+       {
+               unsigned sz = get_component_size(*c);
+               unsigned t = get_component_type(*c);
+               if(*c==COLOR4_UBYTE)
+               {
+                       union { unsigned char c[4]; float f; } u;
+                       u.c[0] = static_cast<unsigned char>(col.r*255);
+                       u.c[1] = static_cast<unsigned char>(col.g*255);
+                       u.c[2] = static_cast<unsigned char>(col.b*255);
+                       u.c[3] = static_cast<unsigned char>(col.a*255);
+                       *ptr++ = u.f;
+               }
+               else if(*c==NORMAL3)
+               {
+                       *ptr++ = nor.x;
+                       *ptr++ = nor.y;
+                       *ptr++ = nor.z;
+               }
+               else if(t==get_component_type(COLOR4_FLOAT))
+               {
+                       *ptr++ = col.r;
+                       *ptr++ = col.g;
+                       *ptr++ = col.b;
+                       if(sz>=4) *ptr++ = col.a;
+               }
+               else
+               {
+                       const Vector4 *v = 0;
+                       if(t==get_component_type(VERTEX3))
+                               v = &ver;
+                       else if(*c>=TEXCOORD1 && *c<=TEXCOORD4+12)
+                               v = &texc[t-get_component_type(TEXCOORD1)];
+                       else if(*c>=ATTRIB1)
+                               v = &attr[t-get_component_type(ATTRIB1)];
+                       else
+                               v = &attr[t];
+                       *ptr++ = v->x;
+                       if(sz>=2) *ptr++ = v->y;
+                       if(sz>=3) *ptr++ = v->z;
+                       if(sz>=4) *ptr++ = v->w;
+               }
+       }
+}
+
+} // namespace GL
+} // namespace Msp