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Corrections Half Float operations on const buffers and implement saturation.

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This commit is contained in:
Fernando Sahmkow
2019-04-19 23:10:19 -04:00
committed by FernandoS27
parent 650d9b1044
commit 623b2e4b8f
2 changed files with 16 additions and 15 deletions
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9
src/video_core/shader/decode/hfma2.cpp
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@ -34,15 +34,14 @@ u32 ShaderIR::DecodeHfma2(NodeBlock& bb, u32 pc) {
case OpCode::Id::HFMA2_CR:
neg_b = instr.hfma2.negate_b;
neg_c = instr.hfma2.negate_c;
return {instr.hfma2.saturate, instr.hfma2.type_b,
return {instr.hfma2.saturate, HalfType::F32,
GetConstBuffer(instr.cbuf34.index, instr.cbuf34.GetOffset()),
instr.hfma2.type_reg39, GetRegister(instr.gpr39)};
case OpCode::Id::HFMA2_RC:
neg_b = instr.hfma2.negate_b;
neg_c = instr.hfma2.negate_c;
return {instr.hfma2.saturate, instr.hfma2.type_reg39, GetRegister(instr.gpr39),
instr.hfma2.type_b,
GetConstBuffer(instr.cbuf34.index, instr.cbuf34.GetOffset())};
HalfType::F32, GetConstBuffer(instr.cbuf34.index, instr.cbuf34.GetOffset())};
case OpCode::Id::HFMA2_RR:
neg_b = instr.hfma2.rr.negate_b;
neg_c = instr.hfma2.rr.negate_c;
@ -56,13 +55,13 @@ u32 ShaderIR::DecodeHfma2(NodeBlock& bb, u32 pc) {
return {false, identity, Immediate(0), identity, Immediate(0)};
}
}();
UNIMPLEMENTED_IF_MSG(saturate, "HFMA2 saturation is not implemented");
const Node op_a = UnpackHalfFloat(GetRegister(instr.gpr8), instr.hfma2.type_a);
op_b = GetOperandAbsNegHalf(UnpackHalfFloat(op_b, type_b), false, neg_b);
op_c = GetOperandAbsNegHalf(UnpackHalfFloat(op_c, type_c), false, neg_c);
Node value = Operation(OperationCode::HFma, PRECISE, op_a, op_b, op_c);
value = GetSaturatedHalfFloat(value, saturate);
value = HalfMerge(GetRegister(instr.gpr0), value, instr.hfma2.merge);
SetRegister(bb, instr.gpr0, value);
@ -70,4 +69,4 @@ u32 ShaderIR::DecodeHfma2(NodeBlock& bb, u32 pc) {
return pc;
}
} // namespace VideoCommon::Shader
} // namespace VideoCommon::Shader