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move declarations to make ANSI compilers happy

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homm 2013-03-27 23:18:10 +04:00
parent a83ef0f0ed
commit a511ef8b05
1 changed files with 4 additions and 3 deletions
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7
libImaging/AlphaComposite.c
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@ -69,6 +69,7 @@ ImagingAlphaComposite(Imaging imDst, Imaging imSrc)
// almost equivalent to:
// tmp = a + (2 << (n-1)), ((tmp >> n) + tmp) >> n
UINT32 tmpr, tmpg, tmpb;
UINT16 blend = dst->a * (255 - src->a);
UINT16 outa255 = src->a * 255 + blend;
// There we use 7 bits for precision.
@ -79,11 +80,11 @@ ImagingAlphaComposite(Imaging imDst, Imaging imSrc)
#define SHIFTFORDIV255(a)\
((a >> 8) + a >> 8)
UINT32 tmpr = src->r * coef1 + dst->r * coef2 + (0x80 << 7);
tmpr = src->r * coef1 + dst->r * coef2 + (0x80 << 7);
out->r = SHIFTFORDIV255(tmpr) >> 7;
UINT32 tmpg = src->g * coef1 + dst->g * coef2 + (0x80 << 7);
tmpg = src->g * coef1 + dst->g * coef2 + (0x80 << 7);
out->g = SHIFTFORDIV255(tmpg) >> 7;
UINT32 tmpb = src->b * coef1 + dst->b * coef2 + (0x80 << 7);
tmpb = src->b * coef1 + dst->b * coef2 + (0x80 << 7);
out->b = SHIFTFORDIV255(tmpb) >> 7;
out->a = SHIFTFORDIV255(outa255 + 0x80);
}