N-archive/citra
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Shader JIT: Tiny micro-optimization in DPH

Browse source
This commit is contained in:
Yuri Kunde Schlesner 2015-08-24 01:15:39 -03:00
parent 630a850d4d
commit d8ef20c856
1 changed files with 4 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/video_core/shader/shader_jit_x64.cpp
View file

@ -367,10 +367,10 @@ void JitCompiler::Compile_DPH(Instruction instr) {
// Set 4th component to 1.0
BLENDPS(SRC1, R(ONE), 0x8); // 0b1000
} else {
// Reverse to set the 4th component to 1.0
SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
MOVSS(SRC1, R(ONE));
SHUFPS(SRC1, R(SRC1), _MM_SHUFFLE(0, 1, 2, 3));
// Set 4th component to 1.0
MOVAPS(SCRATCH, R(SRC1));
UNPCKHPS(SCRATCH, R(ONE)); // XYZW, 1111 -> Z1__
UNPCKLPD(SRC1, R(SCRATCH)); // XYZW, Z1__ -> XYZ1
}
Compile_SanitizedMul(SRC1, SRC2, SCRATCH);