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webp/lossless: fix big endian BGRA output

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Change-Id: I3d4b3d21f561cb526dbe7697a31ea847d3e8b2c1
(cherry picked from commit 2ca83968ae)
This commit is contained in:
James Zern 2013-05-16 13:47:15 -07:00
parent f036d4bfa6
commit 7bb28d2a55
1 changed files with 10 additions and 3 deletions
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11
src/dsp/lossless.c
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@ -1279,11 +1279,12 @@ static void CopyOrSwap(const uint32_t* src, int num_pixels, uint8_t* dst,
while (src < src_end) {
uint32_t argb = *src++;
#if !defined(__BIG_ENDIAN__)
#if !defined(WEBP_REFERENCE_IMPLEMENTATION)
#if !defined(__BIG_ENDIAN__) && (defined(__i386__) || defined(__x86_64__))
#if defined(__i386__) || defined(__x86_64__)
__asm__ volatile("bswap %0" : "=r"(argb) : "0"(argb));
*(uint32_t*)dst = argb;
#elif !defined(__BIG_ENDIAN__) && defined(_MSC_VER)
#elif defined(_MSC_VER)
argb = _byteswap_ulong(argb);
*(uint32_t*)dst = argb;
#else
@ -1297,6 +1298,12 @@ static void CopyOrSwap(const uint32_t* src, int num_pixels, uint8_t* dst,
dst[1] = (argb >> 16) & 0xff;
dst[2] = (argb >> 8) & 0xff;
dst[3] = (argb >> 0) & 0xff;
#endif
#else // __BIG_ENDIAN__
dst[0] = (argb >> 0) & 0xff;
dst[1] = (argb >> 8) & 0xff;
dst[2] = (argb >> 16) & 0xff;
dst[3] = (argb >> 24) & 0xff;
#endif
dst += sizeof(argb);
}