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@ -43,6 +43,25 @@ Id AttrPointer(EmitContext& ctx, Id pointer_type, Id vertex, Id base, Args&&...
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}
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}
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bool IsFixedFncTexture(IR::Attribute attribute) {
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return attribute >= IR::Attribute::FixedFncTexture0S &&
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attribute <= IR::Attribute::FixedFncTexture9Q;
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}
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u32 FixedFncTextureAttributeIndex(IR::Attribute attribute) {
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if (!IsFixedFncTexture(attribute)) {
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throw InvalidArgument("Attribute is not fixedfnctexture {}", attribute);
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}
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return (static_cast<u32>(attribute) - static_cast<u32>(IR::Attribute::FixedFncTexture0S)) / 4u;
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}
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u32 FixedFncTextureAttributeElement(IR::Attribute attribute) {
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if (!IsFixedFncTexture(attribute)) {
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throw InvalidArgument("Attribute is not fixedfnctexture {}", attribute);
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}
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return static_cast<u32>(attribute) % 4;
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}
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template <typename... Args>
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Id OutputAccessChain(EmitContext& ctx, Id result_type, Id base, Args&&... args) {
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if (ctx.stage == Stage::TessellationControl) {
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@ -75,8 +94,8 @@ std::optional<OutAttr> OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
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}
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}
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if (attr >= IR::Attribute::FixedFncTexture0S && attr <= IR::Attribute::FixedFncTexture9Q) {
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const u32 index{IR::FixedFncTextureAttributeIndex(attr)};
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const u32 element{IR::FixedFncTextureAttributeElement(attr)};
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const u32 index{FixedFncTextureAttributeIndex(attr)};
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const u32 element{FixedFncTextureAttributeElement(attr)};
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const Id element_id{ctx.Const(element)};
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return OutputAccessChain(ctx, ctx.output_f32, ctx.output_fixed_fnc_textures[index],
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element_id);
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@ -323,7 +342,7 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
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return type->needs_cast ? ctx.OpBitcast(ctx.F32[1], value) : value;
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}
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if (attr >= IR::Attribute::FixedFncTexture0S && attr <= IR::Attribute::FixedFncTexture9Q) {
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const u32 index{IR::FixedFncTextureAttributeIndex(attr)};
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const u32 index{FixedFncTextureAttributeIndex(attr)};
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return ctx.OpLoad(ctx.F32[1],
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AttrPointer(ctx, ctx.input_f32, vertex,
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ctx.input_fixed_fnc_textures[index], ctx.Const(element)));
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