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Move image to first xsize*bands bytes, rather than including padding if stride > xsize*bands, fixes #523

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wiredfool 2014-02-15 22:41:02 -08:00
parent cb309c9f59
commit 5ecec7db10
1 changed files with 10 additions and 1 deletions
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11
libImaging/PcxDecode.c
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@ -57,7 +57,16 @@ ImagingPcxDecode(Imaging im, ImagingCodecState state, UINT8* buf, int bytes)
} }
if (state->x >= state->bytes) { if (state->x >= state->bytes) {
if (state->bytes % state->xsize && state->bytes > state->xsize) {
int bands = state->bytes / state->xsize;
int stride = state->bytes / bands;
int i;
for (i=1; i< bands; i++) { // note -- skipping first band
memmove(&state->buffer[i*state->xsize],
&state->buffer[i*stride],
state->xsize);
}
}
/* Got a full line, unpack it */ /* Got a full line, unpack it */
state->shuffle((UINT8*) im->image[state->y + state->yoff] + state->shuffle((UINT8*) im->image[state->y + state->yoff] +
state->xoff * im->pixelsize, state->buffer, state->xoff * im->pixelsize, state->buffer,