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shader: Implement fine derivates constant propagation

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This commit is contained in:
FernandoS27
2021-04-17 11:56:45 +02:00
committed by ameerj
parent f18a6dd1bd
commit 04c459fc8d
9 changed files with 101 additions and 0 deletions
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3
src/shader_recompiler/backend/spirv/emit_spirv.cpp
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@@ -341,6 +341,9 @@ void SetupCapabilities(const Profile& profile, const Info& info, EmitContext& ct
if (!ctx.profile.xfb_varyings.empty()) {
ctx.AddCapability(spv::Capability::TransformFeedback);
}
if (info.uses_derivates) {
ctx.AddCapability(spv::Capability::DerivativeControl);
}
// TODO: Track this usage
ctx.AddCapability(spv::Capability::ImageGatherExtended);
ctx.AddCapability(spv::Capability::ImageQuery);

4
src/shader_recompiler/backend/spirv/emit_spirv.h
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@@ -529,4 +529,8 @@ Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id
Id segmentation_mask);
Id EmitFSwizzleAdd(EmitContext& ctx, Id op_a, Id op_b, Id swizzle);
Id EmitDPdxFine(EmitContext& ctx, Id op_a);
Id EmitDPdyFine(EmitContext& ctx, Id op_a);
} // namespace Shader::Backend::SPIRV

8
src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp
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@@ -183,4 +183,12 @@ Id EmitFSwizzleAdd(EmitContext& ctx, Id op_a, Id op_b, Id swizzle) {
return ctx.OpFAdd(ctx.F32[1], result_a, result_b);
}
Id EmitDPdxFine(EmitContext& ctx, Id op_a) {
return ctx.OpDPdxFine(ctx.F32[1], op_a);
}
Id EmitDPdyFine(EmitContext& ctx, Id op_a) {
return ctx.OpDPdyFine(ctx.F32[1], op_a);
}
} // namespace Shader::Backend::SPIRV