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Use SSE in CheckAlpha scanning.

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Unknown W. Brackets committed 2015-05-24 22:55:43 -07:00
1 parent a82fc0e5f7
commit c75010931c
4 files changed
+363 -102
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GPU/GLES/TextureCache.cpp
+7 -51
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@@ -1826,68 +1826,24 @@ void *TextureCache::DecodeTextureLevel(GETextureFormat format, GEPaletteFormat c
}
TextureCache::TexCacheEntry::Status TextureCache::CheckAlpha(const u32 *pixelData, GLenum dstFmt, int stride, int w, int h) {
// TODO: Could probably be optimized more.
u32 hitZeroAlpha = 0;
u32 hitSomeAlpha = 0;
CheckAlphaResult res;
switch (dstFmt) {
case GL_UNSIGNED_SHORT_4_4_4_4:
{
const u32 *p = pixelData;
for (int y = 0; y < h && hitSomeAlpha == 0; ++y) {
for (int i = 0; i < (w + 1) / 2; ++i) {
u32 a = p[i] & 0x000F000F;
hitZeroAlpha |= a ^ 0x000F000F;
if (a != 0x000F000F && a != 0x0000000F && a != 0x000F0000 && a != 0) {
hitSomeAlpha = 1;
break;
}
}
p += stride/2;
}
}
res = CheckAlphaABGR4444Basic(pixelData, stride, w, h);
break;
case GL_UNSIGNED_SHORT_5_5_5_1:
{
const u32 *p = pixelData;
for (int y = 0; y < h; ++y) {
for (int i = 0; i < (w + 1) / 2; ++i) {
u32 a = p[i] & 0x00010001;
hitZeroAlpha |= a ^ 0x00010001;
}
p += stride/2;
}
}
res = CheckAlphaABGR1555Basic(pixelData, stride, w, h);
break;
case GL_UNSIGNED_SHORT_5_6_5:
{
// Never has any alpha.
}
// Never has any alpha.
res = CHECKALPHA_FULL;
break;
default:
{
const u32 *p = pixelData;
for (int y = 0; y < h && hitSomeAlpha == 0; ++y) {
for (int i = 0; i < w; ++i) {
u32 a = p[i] & 0xFF000000;
hitZeroAlpha |= a ^ 0xFF000000;
if (a != 0xFF000000 && a != 0) {
hitSomeAlpha = 1;
break;
}
}
p += stride;
}
}
res = CheckAlphaRGBA8888Basic(pixelData, stride, w, h);
break;
}
if (hitSomeAlpha != 0)
return TexCacheEntry::STATUS_ALPHA_UNKNOWN;
else if (hitZeroAlpha != 0)
return TexCacheEntry::STATUS_ALPHA_SIMPLE;
else
return TexCacheEntry::STATUS_ALPHA_FULL;
return (TexCacheEntry::Status)res;
}
void TextureCache::LoadTextureLevel(TexCacheEntry &entry, int level, bool replaceImages, int scaleFactor, GLenum dstFmt) {