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Revert forced warp shuffle to fix some games (#385)

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Metroid Prime Remastered, Prince of Persia The Lost Crown, and maybe
some others.

A few testers and I couldn't find any game that this broke, but it fixed these two above and they said they got fewer artifacts from a few others.

Reviewed-on: #385
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: Calchan <denis.dupeyron@gmail.com>
Co-committed-by: Calchan <denis.dupeyron@gmail.com>
This commit is contained in:
Calchan 2025-09-05 16:08:35 +02:00 • committed by crueter
parent 25a94a5491
commit 60415ad1db
1 changed files with 1 additions and 16 deletions
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17
src/shader_recompiler/frontend/maxwell/translate/impl/warp_shuffle.cpp
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@ -7,7 +7,6 @@
#include "common/bit_field.h"
#include "common/common_types.h"
#include "shader_recompiler/frontend/maxwell/translate/impl/impl.h"
#include <fstream>
namespace Shader::Maxwell {
namespace {
@ -37,17 +36,6 @@ enum class ShuffleMode : u64 {
}
}
bool IsKONA() {
std::ifstream machineFile("/sys/devices/soc0/machine");
if (machineFile.is_open()) {
std::string line;
std::getline(machineFile, line);
if (line == "KONA")
return true;
}
return false;
}
void Shuffle(TranslatorVisitor& v, u64 insn, const IR::U32& index, const IR::U32& mask) {
union {
u64 insn;
@ -59,10 +47,7 @@ void Shuffle(TranslatorVisitor& v, u64 insn, const IR::U32& index, const IR::U32
const IR::U32 result{ShuffleOperation(v.ir, v.X(shfl.src_reg), index, mask, shfl.mode)};
v.ir.SetPred(shfl.pred, v.ir.GetInBoundsFromOp(result));
if (IsKONA())
v.X(shfl.dest_reg, v.ir.Imm32(0xffffffff)); // This fixes the freeze for Retroid / Snapdragon SD865
else
v.X(shfl.dest_reg, result);
v.X(shfl.dest_reg, result);
}
} // Anonymous namespace