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vc_copylineRGBtoRGBA: mask remaining bites with 1s

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refer to GH-250
This commit is contained in:
Martin Pulec
2022-11-04 15:16:53 +01:00
parent d5bfa4d3d3
commit 2c9822f935
1 changed files with 3 additions and 2 deletions
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5
src/video_codec.c
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@@ -1414,13 +1414,14 @@ void vc_copylineRGBtoRGBA(unsigned char * __restrict dst, const unsigned char *
{ {
register unsigned int r, g, b; register unsigned int r, g, b;
register uint32_t *d = (uint32_t *)(void *) dst; register uint32_t *d = (uint32_t *)(void *) dst;
uint32_t alpha_mask = 0xFFFFFFFFU ^ (0xFFu << rshift) ^ (0xFFu << gshift) ^ (0xFFu << bshift);
OPTIMIZED_FOR (int x = 0; x <= dst_len - 4; x += 4) { OPTIMIZED_FOR (int x = 0; x <= dst_len - 4; x += 4) {
r = *src++; r = *src++;
g = *src++; g = *src++;
b = *src++; b = *src++;
*d++ = (r << rshift) | (g << gshift) | (b << bshift); *d++ = alpha_mask | (r << rshift) | (g << gshift) | (b << bshift);
} }
} }