mesa: remove useless gl_compute_program_state::Current

This is for user assembly shaders only (not GLSL). We won't support those.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

src/mesa/main/mtypes.h

@@ -2314,8 +2314,6 @@ struct gl_fragment_program_state
  */
 struct gl_compute_program_state
 {
-   struct gl_compute_program *Current;  /**< user-bound compute program */
-
    /** Currently enabled and valid program (including internal programs
     * and compiled shader programs).
     */

src/mesa/program/program.c

@@ -97,8 +97,6 @@ _mesa_init_program(struct gl_context *ctx)
    assert(ctx->FragmentProgram.Current);
    ctx->FragmentProgram.Cache = _mesa_new_program_cache();
 
-   _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
-
    /* XXX probably move this stuff */
    ctx->ATIFragmentShader.Enabled = GL_FALSE;
    ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader;
@@ -117,7 +115,6 @@ _mesa_free_program_data(struct gl_context *ctx)
    _mesa_delete_program_cache(ctx, ctx->VertexProgram.Cache);
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
    _mesa_delete_shader_cache(ctx, ctx->FragmentProgram.Cache);
-   _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
 
    /* XXX probably move this stuff */
    if (ctx->ATIFragmentShader.Current) {