i965: added cast wrappers, comments

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index bd770d38c45c55ebf69ce8ec42a3881451572661..48ed4325bef69e4089a30d7b6b7220ffdf167408 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -154,13 +154,15 @@ struct brw_state_flags {
    GLuint cache;
 };
 
+
+/** Subclass of Mesa vertex program */
 struct brw_vertex_program {
    struct gl_vertex_program program;
    GLuint id;
 };
 
 
-
+/** Subclass of Mesa fragment program */
 struct brw_fragment_program {
    struct gl_fragment_program program;
    GLuint id;  /**< serial no. to identify frag progs, never re-used */
@@ -168,8 +170,6 @@ struct brw_fragment_program {
 };
 
 
-
-
 /* Data about a particular attempt to compile a program.  Note that
  * there can be many of these, each in a different GL state
  * corresponding to a different brw_wm_prog_key struct, with different
@@ -684,6 +684,32 @@ brw_context( GLcontext *ctx )
    return (struct brw_context *)ctx;
 }
 
+static INLINE struct brw_vertex_program *
+brw_vertex_program(struct gl_vertex_program *p)
+{
+   return (struct brw_vertex_program *) p;
+}
+
+static INLINE const struct brw_vertex_program *
+brw_vertex_program_const(const struct gl_vertex_program *p)
+{
+   return (const struct brw_vertex_program *) p;
+}
+
+static INLINE struct brw_fragment_program *
+brw_fragment_program(struct gl_fragment_program *p)
+{
+   return (struct brw_fragment_program *) p;
+}
+
+static INLINE const struct brw_fragment_program *
+brw_fragment_program_const(const struct gl_fragment_program *p)
+{
+   return (const struct brw_fragment_program *) p;
+}
+
+
+
 #define DO_SETUP_BITS ((1<<(FRAG_ATTRIB_MAX)) - 1)
 
 #endif