shader: Initial OpenGL implementation
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850b08a16c
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d621e96d0d
38 changed files with 1427 additions and 705 deletions
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@ -355,6 +355,10 @@ U32 IREmitter::WorkgroupIdZ() {
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return U32{CompositeExtract(Inst(Opcode::WorkgroupId), 2)};
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}
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Value IREmitter::LocalInvocationId() {
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return Inst(Opcode::LocalInvocationId);
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}
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U32 IREmitter::LocalInvocationIdX() {
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return U32{CompositeExtract(Inst(Opcode::LocalInvocationId), 0)};
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}
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@ -95,6 +95,7 @@ public:
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[[nodiscard]] U32 WorkgroupIdY();
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[[nodiscard]] U32 WorkgroupIdZ();
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[[nodiscard]] Value LocalInvocationId();
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[[nodiscard]] U32 LocalInvocationIdX();
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[[nodiscard]] U32 LocalInvocationIdY();
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[[nodiscard]] U32 LocalInvocationIdZ();
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@ -120,6 +120,13 @@ enum class SpecialRegister : u64 {
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case SpecialRegister::SR_INVOCATION_INFO:
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// LOG_WARNING(..., "SR_INVOCATION_INFO is stubbed");
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return ir.Imm32(0x00ff'0000);
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case SpecialRegister::SR_TID: {
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const IR::Value tid{ir.LocalInvocationId()};
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return ir.BitFieldInsert(ir.BitFieldInsert(IR::U32{ir.CompositeExtract(tid, 0)},
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IR::U32{ir.CompositeExtract(tid, 1)},
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ir.Imm32(16), ir.Imm32(8)),
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IR::U32{ir.CompositeExtract(tid, 2)}, ir.Imm32(26), ir.Imm32(6));
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}
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case SpecialRegister::SR_TID_X:
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return ir.LocalInvocationIdX();
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case SpecialRegister::SR_TID_Y:
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