mesa: add PIPE_SHADER_* like constants and conversions to/from enums (v2)

Changes in v2:
- No longer adds tessellation enums

1 files changed, 31 insertions, 0 deletions

diff --git a/src/mesa/main/shaderobj.h b/src/mesa/main/shaderobj.h
index 48000463752..cbe7ae7b068 100644
--- a/src/mesa/main/shaderobj.h
+++ b/src/mesa/main/shaderobj.h
@@ -96,6 +96,37 @@ _mesa_init_shader_state(GLcontext *ctx);
 extern void
 _mesa_free_shader_state(GLcontext *ctx);
 
+static INLINE GLuint
+_mesa_shader_type_to_index(GLenum v)
+{
+   switch(v)
+   {
+   case GL_VERTEX_SHADER:
+      return MESA_SHADER_VERTEX;
+   case GL_FRAGMENT_SHADER:
+      return MESA_SHADER_FRAGMENT;
+   case GL_GEOMETRY_SHADER:
+      return MESA_SHADER_GEOMETRY;
+   default:
+      ASSERT(0);
+      return ~0;
+   }
+}
+
+static INLINE GLenum
+_mesa_shader_index_to_type(GLuint i)
+{
+   GLenum enums[MESA_SHADER_TYPES] = {
+         GL_VERTEX_SHADER,
+         GL_FRAGMENT_SHADER,
+         GL_GEOMETRY_SHADER ,
+   };
+   if(i >= MESA_SHADER_TYPES)
+      return 0;
+   else
+      return enums[i];
+}
+
 #ifdef __cplusplus
 }
 #endif