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-rw-r--r--src/video_core/shader/decode/conversion.cpp15
1 files changed, 10 insertions, 5 deletions
diff --git a/src/video_core/shader/decode/conversion.cpp b/src/video_core/shader/decode/conversion.cpp
index 6ead42070..c72690b2b 100644
--- a/src/video_core/shader/decode/conversion.cpp
+++ b/src/video_core/shader/decode/conversion.cpp
@@ -138,18 +138,23 @@ u32 ShaderIR::DecodeConversion(NodeBlock& bb, u32 pc) {
value = GetOperandAbsNegFloat(value, instr.conversion.abs_a, instr.conversion.negate_a);
- value = [&]() {
+ value = [&] {
+ if (instr.conversion.src_size != instr.conversion.dst_size) {
+ // Rounding operations only matter when the source and destination conversion size
+ // is the same.
+ return value;
+ }
switch (instr.conversion.f2f.GetRoundingMode()) {
case Tegra::Shader::F2fRoundingOp::None:
return value;
case Tegra::Shader::F2fRoundingOp::Round:
- return Operation(OperationCode::FRoundEven, PRECISE, value);
+ return Operation(OperationCode::FRoundEven, value);
case Tegra::Shader::F2fRoundingOp::Floor:
- return Operation(OperationCode::FFloor, PRECISE, value);
+ return Operation(OperationCode::FFloor, value);
case Tegra::Shader::F2fRoundingOp::Ceil:
- return Operation(OperationCode::FCeil, PRECISE, value);
+ return Operation(OperationCode::FCeil, value);
case Tegra::Shader::F2fRoundingOp::Trunc:
- return Operation(OperationCode::FTrunc, PRECISE, value);
+ return Operation(OperationCode::FTrunc, value);
default:
UNIMPLEMENTED_MSG("Unimplemented F2F rounding mode {}",
static_cast<u32>(instr.conversion.f2f.rounding.Value()));