From fdad1ca25650828855e6ae347ee84e53fcef12d2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Samuel=20Iglesias=20Gons=C3=A1lvez?= Date: Wed, 10 Jun 2020 09:35:59 +0200 Subject: [PATCH] turnip: disable LRZ depending on fragment changes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Disable LRZ write if the fragment shader discard the fragments, modify its position or if early-Z is disabled. Signed-off-by: Samuel Iglesias Gonsálvez Part-of: --- src/freedreno/vulkan/tu_pipeline.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/freedreno/vulkan/tu_pipeline.c b/src/freedreno/vulkan/tu_pipeline.c index 5d41732c47c..c2cc4dbd009 100644 --- a/src/freedreno/vulkan/tu_pipeline.c +++ b/src/freedreno/vulkan/tu_pipeline.c @@ -2536,6 +2536,17 @@ tu_pipeline_builder_parse_depth_stencil(struct tu_pipeline_builder *builder, pipeline->lrz.write = false; pipeline->lrz.invalidate = true; } + + if (builder->shaders[MESA_SHADER_FRAGMENT]) { + const struct ir3_shader_variant *fs = &builder->shaders[MESA_SHADER_FRAGMENT]->ir3_shader->variants[0]; + if (fs->has_kill || fs->no_earlyz || fs->writes_pos) { + pipeline->lrz.write = false; + } + if (fs->no_earlyz || fs->writes_pos) { + pipeline->lrz.enable = false; + pipeline->lrz.z_test_enable = false; + } + } } static void