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gsdx sw: factorize color split in split16_2x8

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This commit is contained in:
Gregory Hainaut
2016-11-19 17:00:33 +01:00
parent d58e43edbf
commit e728a14c19
5 changed files with 71 additions and 132 deletions
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plugins/GSdx/GSDrawScanlineCodeGenerator.cpp
+32
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@@ -375,4 +375,36 @@ void GSDrawScanlineCodeGenerator::blend8r(const Xmm& b, const Xmm& a)
#endif
}
void GSDrawScanlineCodeGenerator::split16_2x8(const Xmm& l, const Xmm& h, const Xmm& src)
{
// l = src & 0xFF; (1 left shift + 1 right shift)
// h = (src >> 8) & 0xFF; (1 right shift)
#if _M_SSE >= 0x500
if (src == h) {
vpsllw(l, src, 8);
vpsrlw(h, 8);
} else if (src == l) {
vpsrlw(h, src, 8);
vpsllw(l, 8);
} else {
vpsllw(l, src, 8);
vpsrlw(h, src, 8);
}
vpsrlw(l, 8);
#else
if (src == h) {
movdqa(l, src);
} else if (src == l) {
movdqa(h, src);
} else {
movdqa(l, src);
movdqa(h, src);
}
psllw(l, 8);
psrlw(l, 8);
psrlw(h, 8);
#endif
}
#endif