mesa/sso: Add pipeline container/state

V1:
* Extend gl_shader_state as pipeline object state
* Add a new container gl_pipeline_shader_state that contains
   binding point of the previous object
* Update mesa init/free shader state due to the extension of
   the attibute
* Add an init/free pipeline function for the context

V2:
* Rename gl_shader_state to gl_pipeline_object
* Rename Pipeline.PipelineObj to Pipeline.Current
* Formatting improvement

V3 (idr):
* Split out from previous uber patch.
* Remove '#if 0' debug printfs.

V4 (idr):
* Fix some errors in comments.  Suggested by Jordan.

Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Jordan Justen <[email protected]>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/mesa/main/pipelineobj.h b/src/mesa/main/pipelineobj.h
index 56d32ccef74..46d5fab4230 100644
--- a/src/mesa/main/pipelineobj.h
+++ b/src/mesa/main/pipelineobj.h
@@ -34,6 +34,31 @@ extern "C" {
 
 struct _glapi_table;
 struct gl_context;
+struct gl_pipeline_object;
+
+extern void
+_mesa_delete_pipeline_object(struct gl_context *ctx, struct gl_pipeline_object *obj);
+
+extern void
+_mesa_init_pipeline(struct gl_context *ctx);
+
+extern void
+_mesa_free_pipeline_data(struct gl_context *ctx);
+
+extern void
+_mesa_reference_pipeline_object_(struct gl_context *ctx,
+                                 struct gl_pipeline_object **ptr,
+                                 struct gl_pipeline_object *obj);
+
+static inline void
+_mesa_reference_pipeline_object(struct gl_context *ctx,
+                                struct gl_pipeline_object **ptr,
+                                struct gl_pipeline_object *obj)
+{
+   if (*ptr != obj)
+      _mesa_reference_pipeline_object_(ctx, ptr, obj);
+}
+
 
 extern void GLAPIENTRY
 _mesa_UseProgramStages(GLuint pipeline, GLbitfield stages, GLuint program);