shader: Add PointSize attribute
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514a6b07ee
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b7589fe115
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@ -492,6 +492,12 @@ void EmitContext::DefineOutputs(const Info& info) {
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if (info.stores_position || stage == Stage::VertexB) {
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output_position = DefineOutput(*this, F32[4], spv::BuiltIn::Position);
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}
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if (info.stores_point_size) {
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if (stage == Stage::Fragment) {
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throw NotImplementedException("Storing PointSize in Fragment stage");
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}
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output_point_size = DefineOutput(*this, F32[1], spv::BuiltIn::PointSize);
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}
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for (size_t i = 0; i < info.stores_generics.size(); ++i) {
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if (info.stores_generics[i]) {
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output_generics[i] = DefineOutput(*this, F32[4]);
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@ -120,6 +120,7 @@ public:
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Id input_position{};
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std::array<Id, 32> input_generics{};
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Id output_point_size{};
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Id output_position{};
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std::array<Id, 32> output_generics{};
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@ -37,6 +37,8 @@ Id OutputAttrPointer(EmitContext& ctx, IR::Attribute attr) {
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return ctx.OpAccessChain(ctx.output_f32, ctx.output_generics.at(index), element_id());
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}
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switch (attr) {
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case IR::Attribute::PointSize:
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return ctx.output_point_size;
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case IR::Attribute::PositionX:
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case IR::Attribute::PositionY:
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case IR::Attribute::PositionZ:
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@ -58,6 +58,9 @@ void SetAttribute(Info& info, IR::Attribute attribute) {
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return;
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}
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switch (attribute) {
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case IR::Attribute::PointSize:
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info.stores_point_size = true;
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break;
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case IR::Attribute::PositionX:
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case IR::Attribute::PositionY:
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case IR::Attribute::PositionZ:
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@ -79,6 +79,7 @@ struct Info {
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bool stores_frag_depth{};
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std::array<bool, 32> stores_generics{};
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bool stores_position{};
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bool stores_point_size{};
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bool uses_fp16{};
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bool uses_fp64{};
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