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Fixed bc5 decoding

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BC5 decoding uses only 2 channels instead of 4. The current algorithm did not initialize the RGBA struct which resulted in random values in the output image. This commit should initialize the decoded RGBA struct, thus setting B and A values to default (0).
This commit is contained in:
Istvan Fehervari 2017-08-03 11:07:51 +02:00
parent 2512400d6d
commit 0477278c68
1 changed files with 1 additions and 0 deletions
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libImaging/BcnDecode.c
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@ -815,6 +815,7 @@ static int decode_bcn(Imaging im, ImagingCodecState state, const UINT8* src, int
case NN: \ case NN: \
while (bytes >= SZ) { \ while (bytes >= SZ) { \
TY col[16]; \ TY col[16]; \
memset(col, 0, 16 * sizeof(col[0])); \
decode_bc##NN##_block(col, ptr); \ decode_bc##NN##_block(col, ptr); \
put_block(im, state, (const char *)col, sizeof(col[0]), C); \ put_block(im, state, (const char *)col, sizeof(col[0]), C); \
ptr += SZ; \ ptr += SZ; \