From 30bbe28b7efc7e6b6fef78ac3233bb7485679d1e Mon Sep 17 00:00:00 2001 From: =?utf8?q?Kristian=20H=C3=B8gsberg=20Kristensen?= Date: Fri, 4 Mar 2016 22:07:02 -0800 Subject: [PATCH] anv: Always use point size from the shader There is no API for setting the point size and the shader is always required to set it. Section 24.4: "If the value written to PointSize is less than or equal to zero, or if no value was written to PointSize, results are undefined." As such, we can just always program PointWidthSource to Vertex. This simplifies anv_pipeline a bit and avoids trouble when we enable the pipeline cache and don't have writes_point_size in the prog_data. --- src/intel/vulkan/anv_pipeline.c | 6 ------ src/intel/vulkan/anv_private.h | 1 - src/intel/vulkan/gen7_pipeline.c | 2 +- src/intel/vulkan/gen8_pipeline.c | 2 +- 4 files changed, 2 insertions(+), 9 deletions(-) diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c index f3f5ecdf660..183589611a1 100644 --- a/src/intel/vulkan/anv_pipeline.c +++ b/src/intel/vulkan/anv_pipeline.c @@ -469,8 +469,6 @@ anv_pipeline_compile_vs(struct anv_pipeline *pipeline, ralloc_steal(mem_ctx, nir); prog_data.inputs_read = nir->info.inputs_read; - if (nir->info.outputs_written & (1ull << VARYING_SLOT_PSIZ)) - pipeline->writes_point_size = true; brw_compute_vue_map(&pipeline->device->info, &prog_data.base.vue_map, @@ -556,9 +554,6 @@ anv_pipeline_compile_gs(struct anv_pipeline *pipeline, if (module->nir == NULL) ralloc_steal(mem_ctx, nir); - if (nir->info.outputs_written & (1ull << VARYING_SLOT_PSIZ)) - pipeline->writes_point_size = true; - brw_compute_vue_map(&pipeline->device->info, &prog_data.base.vue_map, nir->info.outputs_written, @@ -1122,7 +1117,6 @@ anv_pipeline_init(struct anv_pipeline *pipeline, anv_finishme("VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_STATE_CREATE_INFO"); pipeline->use_repclear = extra && extra->use_repclear; - pipeline->writes_point_size = false; /* When we free the pipeline, we detect stages based on the NULL status * of various prog_data pointers. Make them NULL by default. diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h index b112b457b99..8c3318816c6 100644 --- a/src/intel/vulkan/anv_private.h +++ b/src/intel/vulkan/anv_private.h @@ -1409,7 +1409,6 @@ struct anv_pipeline { bool use_repclear; - bool writes_point_size; const struct brw_stage_prog_data * prog_data[MESA_SHADER_STAGES]; uint32_t scratch_start[MESA_SHADER_STAGES]; uint32_t total_scratch; diff --git a/src/intel/vulkan/gen7_pipeline.c b/src/intel/vulkan/gen7_pipeline.c index 5f480edf809..37e4639b287 100644 --- a/src/intel/vulkan/gen7_pipeline.c +++ b/src/intel/vulkan/gen7_pipeline.c @@ -65,7 +65,7 @@ gen7_emit_rs_state(struct anv_pipeline *pipeline, /* uint32_t AALineDistanceMode; */ /* uint32_t VertexSubPixelPrecisionSelect; */ - .UsePointWidthState = !pipeline->writes_point_size, + .UsePointWidthState = false, .PointWidth = 1.0, .GlobalDepthOffsetEnableSolid = info->depthBiasEnable, .GlobalDepthOffsetEnableWireframe = info->depthBiasEnable, diff --git a/src/intel/vulkan/gen8_pipeline.c b/src/intel/vulkan/gen8_pipeline.c index 5ce1307f090..8edc1574ac3 100644 --- a/src/intel/vulkan/gen8_pipeline.c +++ b/src/intel/vulkan/gen8_pipeline.c @@ -60,7 +60,7 @@ emit_rs_state(struct anv_pipeline *pipeline, .TriangleStripListProvokingVertexSelect = 0, .LineStripListProvokingVertexSelect = 0, .TriangleFanProvokingVertexSelect = 1, - .PointWidthSource = pipeline->writes_point_size ? Vertex : State, + .PointWidthSource = Vertex, .PointWidth = 1.0, }; -- 2.30.2