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Fix the spinguard logic for big buffers. (#494667, Ed Catmur)

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2007-12-09  Matthias Clasen  <mclasen@redhat.com>

        * io-jpeg.c: Fix the spinguard logic for big buffers.
        (#494667, Ed Catmur)
 

svn path=/trunk/; revision=19135
This commit is contained in:
Matthias Clasen 2007-12-09 18:55:12 +00:00 committed by Matthias Clasen
parent 6f19a46cf9
commit 2943543c1b
2 changed files with 12 additions and 3 deletions
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5
gdk-pixbuf/ChangeLog
View File

@ -1,3 +1,8 @@
2007-12-09 Matthias Clasen <mclasen@redhat.com>
* io-jpeg.c: Fix the spinguard logic for big buffers.
(#494667, Ed Catmur)
2007-11-25 Tor Lillqvist <tml@novell.com>
* Makefile.am: Fix static build of the icns loader.

10
gdk-pixbuf/io-jpeg.c
View File

@ -812,7 +812,7 @@ gdk_pixbuf__jpeg_image_load_increment (gpointer data,
struct jpeg_decompress_struct *cinfo;
my_src_ptr src;
guint num_left, num_copy;
guint last_bytes_left;
guint last_num_left, last_bytes_left;
guint spinguard;
gboolean first;
const guchar *bufhd;
@ -853,6 +853,7 @@ gdk_pixbuf__jpeg_image_load_increment (gpointer data,
if (num_left == 0)
return TRUE;
last_num_left = num_left;
last_bytes_left = 0;
spinguard = 0;
first = TRUE;
@ -880,10 +881,13 @@ gdk_pixbuf__jpeg_image_load_increment (gpointer data,
if (first) {
last_bytes_left = src->pub.bytes_in_buffer;
first = FALSE;
} else if (src->pub.bytes_in_buffer == last_bytes_left)
} else if (src->pub.bytes_in_buffer == last_bytes_left
&& num_left == last_num_left) {
spinguard++;
else
} else {
last_bytes_left = src->pub.bytes_in_buffer;
last_num_left = num_left;
}
/* should not go through twice and not pull bytes out of buf */
if (spinguard > 2)