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(imagemagick_compute_animated_image): Fix animated segafault

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(imagemagick_compute_animated_image): Setting the iterator row to
zero is apparently not allowed.
This commit is contained in:
Lars Magne Ingebrigtsen 2013-08-15 20:47:28 +02:00
parent 703dbebab0
commit 1d18b1e6ab
2 changed files with 4 additions and 1 deletions
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2
src/ChangeLog
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@ -2,6 +2,8 @@
* image.c (imagemagick_compute_animated_image): Animate correctly
when sub-images are smaller than the main image.
(imagemagick_compute_animated_image): Setting the iterator row to
zero is apparently not allowed.
2013-08-15 Jan Djärv <jan.h.d@swipnet.se>

3
src/image.c
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@ -7945,7 +7945,8 @@ imagemagick_compute_animated_image (MagickWand *super_wand, int ino)
/* The sub-image may not start at origo, so move the destination
iterator to where the sub-image should start. */
PixelSetIteratorRow (dest_iterator, source_top);
if (source_top > 0)
PixelSetIteratorRow (dest_iterator, source_top);
while ((source = PixelGetNextIteratorRow (source_iterator, &source_width))
!= NULL)