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webp: always decode to block storage when it's used

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It's apparently not a problem if we don't strip the alpha channel
when decoding a RGBA image to RGB.
This commit is contained in:
Benoit Pierre 2015-02-27 10:10:45 +01:00
parent bd369f78ae
commit 2a7fde6c81
1 changed files with 2 additions and 2 deletions
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4
libImaging/WebPDecode.c
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@ -57,8 +57,8 @@ int ImagingWebPDecode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes
else
config->output.colorspace = MODE_RGB;
/* If block storage is used, and we're not stripping alpha, then directly decode to it. */
if (NULL != im->block && (MODE_RGBA == config->output.colorspace || !context->has_alpha))
/* If block storage is used, then directly decode to it. */
if (NULL != im->block)
{
assert(4 == im->pixelsize);