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fix fill_mask_L() by adding more parentheses to the macros it uses

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Yay295 2022-08-22 18:44:30 -05:00
parent 96e791b037
commit 1f1dfc3fb7
1 changed files with 3 additions and 3 deletions
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6
src/libImaging/ImagingUtils.h
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@ -14,16 +14,16 @@
#define MASK_UINT32_CHANNEL_3 0xff000000 #define MASK_UINT32_CHANNEL_3 0xff000000
#endif #endif
#define SHIFTFORDIV255(a) ((((a) >> 8) + a) >> 8) #define SHIFTFORDIV255(a) ((((a) >> 8) + (a)) >> 8)
/* like (a * b + 127) / 255), but much faster on most platforms */ /* like (a * b + 127) / 255), but much faster on most platforms */
#define MULDIV255(a, b, tmp) (tmp = (a) * (b) + 128, SHIFTFORDIV255(tmp)) #define MULDIV255(a, b, tmp) (tmp = (a) * (b) + 128, SHIFTFORDIV255(tmp))
#define DIV255(a, tmp) (tmp = (a) + 128, SHIFTFORDIV255(tmp)) #define DIV255(a, tmp) (tmp = (a) + 128, SHIFTFORDIV255(tmp))
#define BLEND(mask, in1, in2, tmp1) DIV255(in1 *(255 - mask) + in2 * mask, tmp1) #define BLEND(mask, in1, in2, tmp1) DIV255((in1) * (255 - (mask)) + (in2) * (mask), tmp1)
#define PREBLEND(mask, in1, in2, tmp1) (MULDIV255(in1, (255 - mask), tmp1) + in2) #define PREBLEND(mask, in1, in2, tmp1) (MULDIV255(in1, 255 - (mask), tmp1) + (in2))
#define CLIP8(v) ((v) <= 0 ? 0 : (v) < 256 ? (v) : 255) #define CLIP8(v) ((v) <= 0 ? 0 : (v) < 256 ? (v) : 255)