mesa: add/update comments in _mesa_copy_buffer_subdata()

[mesa.git] / src / mesa / drivers / dri / i965 / brw_vs_surface_state.c

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 66d5545b7a9997297dbf745da463dc91b8e7acaa..2f7b211d5eccfc72ae2da1d3654793b7b7be9692 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_surface_state.c
@@ -65,6 +65,7 @@ brw_upload_vs_pull_constants(struct brw_context *brw)
       if (brw->vs.const_bo) {
         drm_intel_bo_unreference(brw->vs.const_bo);
         brw->vs.const_bo = NULL;
+        brw->bind.surf_offset[SURF_INDEX_VERT_CONST_BUFFER] = 0;
         brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
       }
       return;
@@ -92,66 +93,20 @@ brw_upload_vs_pull_constants(struct brw_context *brw)
    }
 
    drm_intel_gem_bo_unmap_gtt(brw->vs.const_bo);
-   brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
-}
-
-const struct brw_tracked_state brw_vs_constants = {
-   .dirty = {
-      .mesa = (_NEW_PROGRAM_CONSTANTS),
-      .brw = (BRW_NEW_VERTEX_PROGRAM),
-      .cache = CACHE_NEW_VS_PROG,
-   },
-   .emit = brw_upload_vs_pull_constants,
-};
-
-/**
- * Update the surface state for a VS constant buffer.
- *
- * Sets brw->vs.surf_bo[surf] and brw->vp->const_buffer.
- */
-static void
-brw_update_vs_constant_surface( struct gl_context *ctx,
-                                GLuint surf)
-{
-   struct brw_context *brw = brw_context(ctx);
-   struct intel_context *intel = &brw->intel;
-   struct brw_vertex_program *vp =
-      (struct brw_vertex_program *) brw->vertex_program;
-   const struct gl_program_parameter_list *params = vp->program.Base.Parameters;
-
-   /* If there's no constant buffer, then no surface BO is needed to point at
-    * it.
-    */
-   if (brw->vs.const_bo == NULL) {
-      brw->bind.surf_offset[surf] = 0;
-      return;
-   }
 
+   const int surf = SURF_INDEX_VERT_CONST_BUFFER;
    intel->vtbl.create_constant_surface(brw, brw->vs.const_bo,
                                       params->NumParameters,
                                       &brw->bind.surf_offset[surf]);
-}
-
-/**
- * Vertex shader surfaces (constant buffer).
- */
-static void
-brw_upload_vs_surfaces(struct brw_context *brw)
-{
-   struct gl_context *ctx = &brw->intel.ctx;
 
-   /* BRW_NEW_VS_CONSTBUF */
-   if (brw->vs.const_bo) {
-      brw_update_vs_constant_surface(ctx, SURF_INDEX_VERT_CONST_BUFFER);
-   }
+   brw->state.dirty.brw |= BRW_NEW_VS_CONSTBUF;
 }
 
-const struct brw_tracked_state brw_vs_surfaces = {
+const struct brw_tracked_state brw_vs_pull_constants = {
    .dirty = {
-      .mesa = 0,
-      .brw = (BRW_NEW_VS_CONSTBUF |
-             BRW_NEW_BATCH),
-      .cache = 0
+      .mesa = (_NEW_PROGRAM_CONSTANTS),
+      .brw = (BRW_NEW_BATCH | BRW_NEW_VERTEX_PROGRAM),
+      .cache = CACHE_NEW_VS_PROG,
    },
-   .emit = brw_upload_vs_surfaces,
+   .emit = brw_upload_vs_pull_constants,
 };