Exemplo n.º 1
0
void
brw_upload_gs_prog(struct brw_context *brw)
{
   struct gl_context *ctx = &brw->ctx;
   struct gl_shader_program **current = ctx->_Shader->CurrentProgram;
   struct brw_stage_state *stage_state = &brw->gs.base;
   struct brw_gs_prog_key key;
   /* BRW_NEW_GEOMETRY_PROGRAM */
   struct brw_geometry_program *gp =
      (struct brw_geometry_program *) brw->geometry_program;

   if (!brw_gs_state_dirty(brw))
      return;

   if (gp == NULL) {
      /* No geometry shader.  Vertex data just passes straight through. */
      if (brw->ctx.NewDriverState & BRW_NEW_VUE_MAP_VS) {
         brw->vue_map_geom_out = brw->vue_map_vs;
         brw->ctx.NewDriverState |= BRW_NEW_VUE_MAP_GEOM_OUT;
      }

      if (brw->gen == 6 &&
          (brw->ctx.NewDriverState & BRW_NEW_TRANSFORM_FEEDBACK)) {
         gen6_brw_upload_ff_gs_prog(brw);
         return;
      }

      /* Other state atoms had better not try to access prog_data, since
       * there's no GS program.
       */
      brw->gs.prog_data = NULL;
      brw->gs.base.prog_data = NULL;

      return;
   }

   brw_gs_populate_key(brw, &key);

   if (!brw_search_cache(&brw->cache, BRW_CACHE_GS_PROG,
                         &key, sizeof(key),
                         &stage_state->prog_offset, &brw->gs.prog_data)) {
      bool success = brw_codegen_gs_prog(brw, current[MESA_SHADER_GEOMETRY],
                                         gp, &key);
      assert(success);
      (void)success;
   }
   brw->gs.base.prog_data = &brw->gs.prog_data->base.base;

   if (memcmp(&brw->gs.prog_data->base.vue_map, &brw->vue_map_geom_out,
              sizeof(brw->vue_map_geom_out)) != 0) {
      brw->vue_map_geom_out = brw->gs.prog_data->base.vue_map;
      brw->ctx.NewDriverState |= BRW_NEW_VUE_MAP_GEOM_OUT;
   }
}
Exemplo n.º 2
0
void
brw_upload_gs_prog(struct brw_context *brw)
{
   struct brw_stage_state *stage_state = &brw->gs.base;
   struct brw_gs_prog_key key;
   /* BRW_NEW_GEOMETRY_PROGRAM */
   struct brw_program *gp = (struct brw_program *) brw->geometry_program;

   if (!brw_gs_state_dirty(brw))
      return;

   if (gp == NULL) {
      /* No geometry shader.  Vertex data just passes straight through. */
      if (brw->gen == 6 &&
          (brw->ctx.NewDriverState & BRW_NEW_TRANSFORM_FEEDBACK)) {
         gen6_brw_upload_ff_gs_prog(brw);
         return;
      }

      /* Other state atoms had better not try to access prog_data, since
       * there's no GS program.
       */
      brw->gs.base.prog_data = NULL;

      return;
   }

   brw_gs_populate_key(brw, &key);

   if (!brw_search_cache(&brw->cache, BRW_CACHE_GS_PROG,
                         &key, sizeof(key),
                         &stage_state->prog_offset,
                         &brw->gs.base.prog_data)) {
      bool success = brw_codegen_gs_prog(brw, gp, &key);
      assert(success);
      (void)success;
   }
}