mesa/cs: Update program.c for compute shaders.

Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/program/program.c

@@ -102,6 +102,8 @@ _mesa_init_program(struct gl_context *ctx)
    _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current,
                             NULL);
 
+   _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
+
    /* XXX probably move this stuff */
    ctx->ATIFragmentShader.Enabled = GL_FALSE;
    ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader;
@@ -121,6 +123,7 @@ _mesa_free_program_data(struct gl_context *ctx)
    _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
    _mesa_delete_shader_cache(ctx, ctx->FragmentProgram.Cache);
    _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL);
+   _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
 
    /* XXX probably move this stuff */
    if (ctx->ATIFragmentShader.Current) {