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shader,spirv: Implement ImageQueryLod.

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FernandoS27 2021-03-28 19:47:52 +02:00 • committed by ameerj
parent 2c276ec6eb
commit 613b48c4a2
9 changed files with 38 additions and 1 deletions
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1
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -182,6 +182,7 @@ void EmitContext::DefineCommonConstants() {
true_value = ConstantTrue(U1);
false_value = ConstantFalse(U1);
u32_zero_value = Constant(U32[1], 0U);
f32_zero_value = Constant(F32[1], 0.0f);
}
void EmitContext::DefineInterfaces(const Info& info) {

1
src/shader_recompiler/backend/spirv/emit_context.h
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@ -70,6 +70,7 @@ public:
Id true_value{};
Id false_value{};
Id u32_zero_value{};
Id f32_zero_value{};
UniformDefinitions uniform_types;

3
src/shader_recompiler/backend/spirv/emit_spirv.h
View file

@ -362,6 +362,7 @@ Id EmitBindlessImageGather(EmitContext&);
Id EmitBindlessImageGatherDref(EmitContext&);
Id EmitBindlessImageFetch(EmitContext&);
Id EmitBindlessImageQueryDimensions(EmitContext&);
Id EmitBindlessImageQueryLod(EmitContext&);
Id EmitBoundImageSampleImplicitLod(EmitContext&);
Id EmitBoundImageSampleExplicitLod(EmitContext&);
Id EmitBoundImageSampleDrefImplicitLod(EmitContext&);
@ -370,6 +371,7 @@ Id EmitBoundImageGather(EmitContext&);
Id EmitBoundImageGatherDref(EmitContext&);
Id EmitBoundImageFetch(EmitContext&);
Id EmitBoundImageQueryDimensions(EmitContext&);
Id EmitBoundImageQueryLod(EmitContext&);
Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id bias_lc, Id offset);
Id EmitImageSampleExplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
@ -385,6 +387,7 @@ Id EmitImageGatherDref(EmitContext& ctx, IR::Inst* inst, const IR::Value& index,
Id EmitImageFetch(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords, Id offset,
Id lod, Id ms);
Id EmitImageQueryDimensions(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id lod);
Id EmitImageQueryLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords);
Id EmitVoteAll(EmitContext& ctx, Id pred);
Id EmitVoteAny(EmitContext& ctx, Id pred);
Id EmitVoteEqual(EmitContext& ctx, Id pred);

15
src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
View file

@ -161,6 +161,10 @@ Id EmitBindlessImageQueryDimensions(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBindlessImageQueryLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageSampleImplicitLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
@ -193,6 +197,10 @@ Id EmitBoundImageQueryDimensions(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitBoundImageQueryLod(EmitContext&) {
throw LogicError("Unreachable instruction");
}
Id EmitImageSampleImplicitLod(EmitContext& ctx, IR::Inst* inst, const IR::Value& index, Id coords,
Id bias_lc, Id offset) {
const auto info{inst->Flags<IR::TextureInstInfo>()};
@ -287,4 +295,11 @@ Id EmitImageQueryDimensions(EmitContext& ctx, IR::Inst* inst, const IR::Value& i
throw LogicError("Unspecified image type {}", info.type.Value());
}
Id EmitImageQueryLod(EmitContext& ctx, IR::Inst*, const IR::Value& index, Id coords) {
const Id zero{ctx.f32_zero_value};
const Id image{TextureImage(ctx, index)};
return ctx.OpCompositeConstruct(ctx.F32[4], ctx.OpImageQueryLod(ctx.F32[2], image, coords),
zero, zero);
}
} // namespace Shader::Backend::SPIRV