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-rw-r--r--src/video_core/shader/shader_interpreter.cpp10
-rw-r--r--src/video_core/shader/shader_jit_x64.cpp10
2 files changed, 10 insertions, 10 deletions
diff --git a/src/video_core/shader/shader_interpreter.cpp b/src/video_core/shader/shader_interpreter.cpp
index 063cc38f0..51fee6f97 100644
--- a/src/video_core/shader/shader_interpreter.cpp
+++ b/src/video_core/shader/shader_interpreter.cpp
@@ -221,13 +221,12 @@ void RunInterpreter(UnitState<Debug>& state) {
{
Record<DebugDataRecord::SRC1>(state.debug, iteration, src1);
Record<DebugDataRecord::DEST_IN>(state.debug, iteration, dest);
+ float24 rcp_res = float24::FromFloat32(1.0f / src1[0].ToFloat32());
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
- // TODO: Be stable against division by zero!
- // TODO: I think this might be wrong... we should only use one component here
- dest[i] = float24::FromFloat32(1.0f / src1[i].ToFloat32());
+ dest[i] = rcp_res;
}
Record<DebugDataRecord::DEST_OUT>(state.debug, iteration, dest);
break;
@@ -238,13 +237,12 @@ void RunInterpreter(UnitState<Debug>& state) {
{
Record<DebugDataRecord::SRC1>(state.debug, iteration, src1);
Record<DebugDataRecord::DEST_IN>(state.debug, iteration, dest);
+ float24 rsq_res = float24::FromFloat32(1.0f / sqrt(src1[0].ToFloat32()));
for (int i = 0; i < 4; ++i) {
if (!swizzle.DestComponentEnabled(i))
continue;
- // TODO: Be stable against division by zero!
- // TODO: I think this might be wrong... we should only use one component here
- dest[i] = float24::FromFloat32(1.0f / sqrt(src1[i].ToFloat32()));
+ dest[i] = rsq_res;
}
Record<DebugDataRecord::DEST_OUT>(state.debug, iteration, dest);
break;
diff --git a/src/video_core/shader/shader_jit_x64.cpp b/src/video_core/shader/shader_jit_x64.cpp
index a1bdd8456..e52fe43fb 100644
--- a/src/video_core/shader/shader_jit_x64.cpp
+++ b/src/video_core/shader/shader_jit_x64.cpp
@@ -496,9 +496,10 @@ void JitCompiler::Compile_MOV(Instruction instr) {
void JitCompiler::Compile_RCP(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
- // TODO(bunnei): RCPPS is a pretty rough approximation, this might cause problems if Pica
+ // TODO(bunnei): RCPSS is a pretty rough approximation, this might cause problems if Pica
// performs this operation more accurately. This should be checked on hardware.
- RCPPS(SRC1, R(SRC1));
+ RCPSS(SRC1, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 0, 0, 0)); // XYWZ -> XXXX
Compile_DestEnable(instr, SRC1);
}
@@ -506,9 +507,10 @@ void JitCompiler::Compile_RCP(Instruction instr) {
void JitCompiler::Compile_RSQ(Instruction instr) {
Compile_SwizzleSrc(instr, 1, instr.common.src1, SRC1);
- // TODO(bunnei): RSQRTPS is a pretty rough approximation, this might cause problems if Pica
+ // TODO(bunnei): RSQRTSS is a pretty rough approximation, this might cause problems if Pica
// performs this operation more accurately. This should be checked on hardware.
- RSQRTPS(SRC1, R(SRC1));
+ RSQRTSS(SRC1, R(SRC1));
+ SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 0, 0, 0)); // XYWZ -> XXXX
Compile_DestEnable(instr, SRC1);
}