diff options
Diffstat (limited to 'src/intel/vulkan/anv_pipeline.c')
| -rw-r--r-- | src/intel/vulkan/anv_pipeline.c | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c index 85f38da60ff..23af0f1c924 100644 --- a/src/intel/vulkan/anv_pipeline.c +++ b/src/intel/vulkan/anv_pipeline.c @@ -831,9 +831,25 @@ anv_pipeline_compile_fs(const struct brw_compiler *compiler, fs_stage->key.wm.input_slots_valid = prev_stage->prog_data.vue.vue_map.slots_valid; - return brw_compile_fs(compiler, NULL, mem_ctx, &fs_stage->key.wm, - &fs_stage->prog_data.wm, fs_stage->nir, - NULL, -1, -1, -1, true, false, NULL, NULL); + const unsigned *code = + brw_compile_fs(compiler, NULL, mem_ctx, &fs_stage->key.wm, + &fs_stage->prog_data.wm, fs_stage->nir, + NULL, -1, -1, -1, true, false, NULL, NULL); + + if (fs_stage->key.wm.nr_color_regions == 0 && + !fs_stage->prog_data.wm.has_side_effects && + !fs_stage->prog_data.wm.uses_kill && + fs_stage->prog_data.wm.computed_depth_mode == BRW_PSCDEPTH_OFF && + !fs_stage->prog_data.wm.computed_stencil) { + /* This fragment shader has no outputs and no side effects. Go ahead + * and return the code pointer so we don't accidentally think the + * compile failed but zero out prog_data which will set program_size to + * zero and disable the stage. + */ + memset(&fs_stage->prog_data, 0, sizeof(fs_stage->prog_data)); + } + + return code; } static VkResult @@ -915,7 +931,7 @@ anv_pipeline_compile_graphics(struct anv_pipeline *pipeline, if (found == __builtin_popcount(pipeline->active_stages)) { /* We found all our shaders in the cache. We're done. */ - return VK_SUCCESS; + goto done; } else if (found > 0) { /* We found some but not all of our shaders. This shouldn't happen * most of the time but it can if we have a partially populated @@ -1057,6 +1073,19 @@ anv_pipeline_compile_graphics(struct anv_pipeline *pipeline, ralloc_free(pipeline_ctx); +done: + + if (pipeline->shaders[MESA_SHADER_FRAGMENT] && + pipeline->shaders[MESA_SHADER_FRAGMENT]->prog_data->program_size == 0) { + /* This can happen if we decided to implicitly disable the fragment + * shader. See anv_pipeline_compile_fs(). + */ + anv_shader_bin_unref(pipeline->device, + pipeline->shaders[MESA_SHADER_FRAGMENT]); + pipeline->shaders[MESA_SHADER_FRAGMENT] = NULL; + pipeline->active_stages &= ~VK_SHADER_STAGE_FRAGMENT_BIT; + } + return VK_SUCCESS; fail: |