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rgtc: fix fetch function limits for signed types

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This commit is contained in:
Dave Airlie 2011-03-02 09:52:53 +10:00
parent 8eebd216dd
commit ff0f36f59d
1 changed files with 2 additions and 2 deletions
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4
src/mesa/main/texcompress_rgtc.c
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@ -364,9 +364,9 @@ static void _fetch_texel_rgtc_s(GLint srcRowStride, const GLbyte *pixdata,
else if (code < 6)
decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5);
else if (code == 6)
decode = -128;
decode = -127;
else
decode = 127;
decode = 128;
*value = decode;
}