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emit_spirv: Add Xfb execution mode when transform feedback is used

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Fixes Transform Feedback on Vulkan AMD drivers.
This commit is contained in:
ameerj 2022-01-28 16:32:48 -05:00
parent 0dec42431f
commit beaf7654bb
1 changed files with 9 additions and 3 deletions
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12
src/shader_recompiler/backend/spirv/emit_spirv.cpp
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@ -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<u32> 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();
}