8162f3f877
Also applies clang-format to the current code base, using command:
`find . -regex '.*\.\(c\|h\)' -exec clang-format -style=file -i {} \;`
21 lines
629 B
C
21 lines
629 B
C
#ifndef __OV_UTILS_H_INCLUDED__
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#define __OV_UTILS_H_INCLUDED__
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/* generally useful MAX / MIN macros */
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#define OV_MAX(a, b) ((a) > (b) ? (a) : (b))
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#define OV_MIN(a, b) ((a) < (b) ? (a) : (b))
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#define OV_CLAMP(x, a, b) (OV_MIN(OV_MAX(x, a), b))
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/* like (a * b + 127) / 255), but much faster on most platforms
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from PIL's _imaging.c */
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#define OV_MULDIV255(a, b, tmp) \
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(tmp = (a) * (b) + 128, ((((tmp) >> 8) + (tmp)) >> 8))
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#define OV_BLEND(mask, in1, in2, tmp1, tmp2) \
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(OV_MULDIV255(in1, 255 - mask, tmp1) + OV_MULDIV255(in2, mask, tmp2))
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#define COUNT_OF(array) \
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(sizeof(array) / sizeof(array[0]))
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#endif
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