From beaf7654bbf0543bcaa5a0b22e916fa7276ed96d Mon Sep 17 00:00:00 2001 From: ameerj <52414509+ameerj@users.noreply.github.com> Date: Fri, 28 Jan 2022 16:32:48 -0500 Subject: [PATCH] emit_spirv: Add Xfb execution mode when transform feedback is used Fixes Transform Feedback on Vulkan AMD drivers. --- src/shader_recompiler/backend/spirv/emit_spirv.cpp | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp index 50918317f..08b3a81ce 100644 --- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp +++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp @@ -387,6 +387,14 @@ void SetupSignedNanCapabilities(const Profile& profile, const IR::Program& progr } } +void SetupTransformFeedbackCapabilities(EmitContext& ctx, Id main_func) { + if (ctx.runtime_info.xfb_varyings.empty()) { + return; + } + ctx.AddCapability(spv::Capability::TransformFeedback); + ctx.AddExecutionMode(main_func, spv::ExecutionMode::Xfb); +} + void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ctx) { if (info.uses_sampled_1d) { ctx.AddCapability(spv::Capability::Sampled1D); @@ -442,9 +450,6 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct if (info.uses_sample_id) { ctx.AddCapability(spv::Capability::SampleRateShading); } - if (!ctx.runtime_info.xfb_varyings.empty()) { - ctx.AddCapability(spv::Capability::TransformFeedback); - } if (info.uses_derivatives) { ctx.AddCapability(spv::Capability::DerivativeControl); } @@ -484,6 +489,7 @@ std::vector EmitSPIRV(const Profile& profile, const RuntimeInfo& runtime_in SetupSignedNanCapabilities(profile, program, ctx, main); } SetupCapabilities(profile, program.info, ctx); + SetupTransformFeedbackCapabilities(ctx, main); PatchPhiNodes(program, ctx); return ctx.Assemble(); }