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[devel] turn on interlace handling in png_read_png

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John Bowler 2011-02-12 08:56:40 -06:00 committed by Glenn Randers-Pehrson
parent c83d421d9e
commit 6a6d79fc00
1 changed files with 6 additions and 1 deletions
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7
pngread.c
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@ -1311,7 +1311,7 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
{ {
int row; int row;
if (png_ptr == NULL) if (png_ptr == NULL || info_ptr == NULL)
return; return;
/* png_read_info() gives us all of the information from the /* png_read_info() gives us all of the information from the
@ -1426,6 +1426,11 @@ png_read_png(png_structp png_ptr, png_infop info_ptr,
/* We don't handle adding filler bytes */ /* We don't handle adding filler bytes */
/* We use png_read_image and rely on that for interlace handling, but we also
* call png_read_update_info therefore must turn on interlace handling now:
*/
(void)png_set_interlace_handling(png_ptr);
/* Optional call to gamma correct and add the background to the palette /* Optional call to gamma correct and add the background to the palette
* and update info structure. REQUIRED if you are expecting libpng to * and update info structure. REQUIRED if you are expecting libpng to
* update the palette for you (i.e., you selected such a transform above). * update the palette for you (i.e., you selected such a transform above).