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[devel] Fixed bug in background transformation handling in pngrtran.c

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(it was looking for the flag in png_ptr->transformations instead of in
png_ptr->flags).
This commit is contained in:
Glenn Randers-Pehrson
2010-12-28 21:48:43 -06:00
parent 332594dd06
commit f2e2833f28
3 changed files with 13 additions and 7 deletions
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4
pngrtran.c
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@@ -1068,7 +1068,7 @@ png_init_read_transformations(png_structp png_ptr)
*/
png_ptr->transformations &= ~PNG_BACKGROUND;
png_ptr->transformations &= ~PNG_GAMMA;
png_ptr->transformations |= PNG_STRIP_ALPHA;
png_ptr->flags |= PNG_FLAG_STRIP_ALPHA;
}
/* if (png_ptr->background_gamma_type!=PNG_BACKGROUND_GAMMA_UNKNOWN) */
@@ -1202,7 +1202,7 @@ png_init_read_transformations(png_structp png_ptr)
/* Handled alpha, still need to strip the channel. */
png_ptr->transformations &= ~PNG_BACKGROUND;
png_ptr->transformations |= PNG_STRIP_ALPHA;
png_ptr->flags |= PNG_FLAG_STRIP_ALPHA;
}
#endif /* PNG_READ_BACKGROUND_SUPPORTED */