Mesa (master): i965: generalize brw_vs_pull_constants in preparation for GS .

[Paul Berry]

Module: Mesa
Branch: master
Commit: 1b19f2c576a343aca946494cf3486395b03b3531
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1b19f2c576a343aca946494cf3486395b03b3531

Author: Paul Berry <stereotype441 at gmail.com>
Date:   Sat Aug 24 13:08:57 2013 -0700

i965: generalize brw_vs_pull_constants in preparation for GS.

v2: Use GLbitfield instead of GLbitfield64 in
brw_upload_vec4_pull_constants.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_state.h            |    8 +++
 src/mesa/drivers/dri/i965/brw_vs_surface_state.c |   69 +++++++++++++--------
 2 files changed, 51 insertions(+), 26 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index 4814639..695a84c 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -221,6 +221,14 @@ uint32_t
 get_attr_override(const struct brw_vue_map *vue_map, int urb_entry_read_offset,
                   int fs_attr, bool two_side_color, uint32_t *max_source_attr);
 
+/* brw_vs_surface_state.c */
+void
+brw_upload_vec4_pull_constants(struct brw_context *brw,
+                               GLbitfield brw_new_constbuf,
+                               const struct gl_program *prog,
+                               struct brw_stage_state *stage_state,
+                               const struct brw_vec4_prog_data *prog_data);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
index f1e1a4e..b55febe 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -35,56 +35,49 @@
 #include "brw_context.h"
 #include "brw_state.h"
 
-/* Creates a new VS constant buffer reflecting the current VS program's
- * constants, if needed by the VS program.
- *
- * Otherwise, constants go through the CURBEs using the brw_constant_buffer
- * state atom.
- */
-static void
-brw_upload_vs_pull_constants(struct brw_context *brw)
-{
-   struct brw_stage_state *stage_state = &brw->vs.base;
 
-   /* BRW_NEW_VERTEX_PROGRAM */
-   struct brw_vertex_program *vp =
-      (struct brw_vertex_program *) brw->vertex_program;
+void
+brw_upload_vec4_pull_constants(struct brw_context *brw,
+                               GLbitfield brw_new_constbuf,
+                               const struct gl_program *prog,
+                               struct brw_stage_state *stage_state,
+                               const struct brw_vec4_prog_data *prog_data)
+{
    int i;
 
    /* Updates the ParamaterValues[i] pointers for all parameters of the
     * basic type of PROGRAM_STATE_VAR.
     */
-   _mesa_load_state_parameters(&brw->ctx, vp->program.Base.Parameters);
+   _mesa_load_state_parameters(&brw->ctx, prog->Parameters);
 
-   /* CACHE_NEW_VS_PROG */
-   if (!brw->vs.prog_data->base.nr_pull_params) {
+   if (!prog_data->nr_pull_params) {
       if (stage_state->const_bo) {
 	 drm_intel_bo_unreference(stage_state->const_bo);
 	 stage_state->const_bo = NULL;
 	 stage_state->surf_offset[SURF_INDEX_VEC4_CONST_BUFFER] = 0;
-	 brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
+	 brw->state.dirty.brw |= brw_new_constbuf;
       }
       return;
    }
 
    /* _NEW_PROGRAM_CONSTANTS */
    drm_intel_bo_unreference(stage_state->const_bo);
-   uint32_t size = brw->vs.prog_data->base.nr_pull_params * 4;
-   stage_state->const_bo = drm_intel_bo_alloc(brw->bufmgr, "vp_const_buffer",
-                                              size, 64);
+   uint32_t size = prog_data->nr_pull_params * 4;
+   stage_state->const_bo = drm_intel_bo_alloc(brw->bufmgr, "vec4_const_buffer",
+                                           size, 64);
 
    drm_intel_gem_bo_map_gtt(stage_state->const_bo);
-   for (i = 0; i < brw->vs.prog_data->base.nr_pull_params; i++) {
+
+   for (i = 0; i < prog_data->nr_pull_params; i++) {
       memcpy(stage_state->const_bo->virtual + i * 4,
-	     brw->vs.prog_data->base.pull_param[i],
+	     prog_data->pull_param[i],
 	     4);
    }
 
    if (0) {
-      for (i = 0; i < ALIGN(brw->vs.prog_data->base.nr_pull_params, 4) / 4;
-           i++) {
+      for (i = 0; i < ALIGN(prog_data->nr_pull_params, 4) / 4; i++) {
 	 float *row = (float *)stage_state->const_bo->virtual + i * 4;
-	 printf("vs const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
+	 printf("const surface %3d: %4.3f %4.3f %4.3f %4.3f\n",
 		i, row[0], row[1], row[2], row[3]);
       }
    }
@@ -95,7 +88,31 @@ brw_upload_vs_pull_constants(struct brw_context *brw)
    brw->vtbl.create_constant_surface(brw, stage_state->const_bo, 0, size,
                                      &stage_state->surf_offset[surf], false);
 
-   brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
+   brw->state.dirty.brw |= brw_new_constbuf;
+}
+
+
+/* Creates a new VS constant buffer reflecting the current VS program's
+ * constants, if needed by the VS program.
+ *
+ * Otherwise, constants go through the CURBEs using the brw_constant_buffer
+ * state atom.
+ */
+static void
+brw_upload_vs_pull_constants(struct brw_context *brw)
+{
+   struct brw_stage_state *stage_state = &brw->vs.base;
+
+   /* BRW_NEW_VERTEX_PROGRAM */
+   struct brw_vertex_program *vp =
+      (struct brw_vertex_program *) brw->vertex_program;
+
+   /* CACHE_NEW_VS_PROG */
+   const struct brw_vec4_prog_data *prog_data = &brw->vs.prog_data->base;
+
+   /* _NEW_PROGRAM_CONSTANTS */
+   brw_upload_vec4_pull_constants(brw, BRW_NEW_VS_CONSTBUF, &vp->program.Base,
+                                  stage_state, prog_data);
 }
 
 const struct brw_tracked_state brw_vs_pull_constants = {