Add TexGen wrapper class

[libs/gl.git] / source / texgen.h

diff --git a/source/texgen.h b/source/texgen.h
new file mode 100644 (file)
index 0000000..bb076c6
--- /dev/null
+++ b/source/texgen.h
@@ -0,0 +1,49 @@
+#ifndef MSP_GL_TEXGEN_H_
+#define MSP_GL_TEXGEN_H_
+
+#include "gl.h"
+#include "vector.h"
+
+namespace Msp {
+namespace GL {
+
+enum TexCoordComponent
+{
+       SCOORD = GL_S,
+       TCOORD = GL_T,
+       RCOORD = GL_R,
+       QCOORD = GL_Q
+};
+
+enum TexGenMode
+{
+       EYE_LINEAR = GL_EYE_LINEAR,
+       OBJECT_LINEAR = GL_OBJECT_LINEAR,
+       REFLECTION_MAP = GL_REFLECTION_MAP,
+       NORMAL_MAP = GL_NORMAL_MAP
+};
+
+class TexGen
+{
+private:
+       TexGenMode mode;
+       Vector4 plane;
+
+public:
+       TexGen();
+
+       void set_mode(TexGenMode);
+       void set_plane(const Vector4 &);
+
+       void bind_to(TexCoordComponent) const;
+
+       static const TexGen *current(TexCoordComponent);
+       static void unbind_from(TexCoordComponent);
+private:
+       static unsigned coord_index(TexCoordComponent);
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif