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Small update to fix some cmpr alpha issues with games that use linear filtering. Apparently the colour values matter even though alpha = 0. 

Also, remove redundant ANDs.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5787 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
xsacha 2010-06-25 19:31:26 +00:00
parent 5abc698000
commit 434e6b1198
1 changed files with 6 additions and 4 deletions
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10
Data/User/OpenCL/TextureDecoder.cl
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@ -279,10 +279,11 @@ kernel void decodeCMPRBlock(global uchar *dst,
bitselect(colorb565, colorb565 >> (uchar2)5, (uchar2)7),
(uchar2)0xFF);
ushort4 frac2 = convert_ushort4(color32.even & (uchar4)0xFF) - convert_ushort4(color32.odd & (uchar4)0xFF);
ushort4 frac2 = convert_ushort4(color32.even) - convert_ushort4(color32.odd);
uchar4 frac = convert_uchar4((frac2 * (ushort4)3) / (ushort4)8);
ushort4 colorAlpha = upsample((uchar4)0, rhadd(color32.odd, color32.even));
ushort4 colorAlpha = upsample((uchar4)(color32.even.s0,color32.even.s1,color32.even.s2,0),
rhadd(color32.odd, color32.even));
colorAlpha.s3 = 0xFF;
ushort4 colorNoAlpha = upsample(color32.odd + frac, color32.even - frac);
@ -324,10 +325,11 @@ kernel void decodeCMPRBlock_RGBA(global uchar *dst,
bitselect(colora565 << (uchar2)3, colora565 >> (uchar2)2, (uchar2)7),
(uchar2)0xFF);
ushort4 frac2 = convert_ushort4(color32.even & (uchar4)0xFF) - convert_ushort4(color32.odd & (uchar4)0xFF);
ushort4 frac2 = convert_ushort4(color32.even) - convert_ushort4(color32.odd);
uchar4 frac = convert_uchar4((frac2 * (ushort4)3) / (ushort4)8);
ushort4 colorAlpha = upsample((uchar4)0, rhadd(color32.odd, color32.even));
ushort4 colorAlpha = upsample((uchar4)(color32.even.s0,color32.even.s1,color32.even.s2,0),
rhadd(color32.odd, color32.even));
colorAlpha.s3 = 0xFF;
ushort4 colorNoAlpha = upsample(color32.odd + frac, color32.even - frac);