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s3tc: fix shift overflow by using unsigned constant 

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-11-26 16:51:44 +00:00
parent f7f892e4d5
commit b02aa3a8ea
1 changed files with 1 additions and 1 deletions
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2
libavcodec/s3tc.c
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@ -28,7 +28,7 @@
static inline void dxt1_decode_pixels(const uint8_t *s, uint32_t *d,
unsigned int qstride, unsigned int flag,
uint64_t alpha) {
unsigned int x, y, c0, c1, a = (!flag * 255) << 24;
unsigned int x, y, c0, c1, a = (!flag * 255u) << 24;
unsigned int rb0, rb1, rb2, rb3, g0, g1, g2, g3;
uint32_t colors[4], pixels;