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authorPierre Joye <pierre.php@gmail.com>2021-08-25 12:52:45 +0700
committerPierre Joye <pierre.php@gmail.com>2021-08-25 12:52:45 +0700
commit5771e976bd973f80d62329df15eb4102d97587c3 (patch)
treef64a62a9c027e3105446466570f214255a1408f3 /src/gd_gif_out.c
parenta24e96f01989bf9ca05a08d33862a08d6f4c4ed6 (diff)
downloadlibgd-5771e976bd973f80d62329df15eb4102d97587c3.tar.gz
Fix #415, Assuming TopOfs and LeftOfs zero, we can safely skip any (x,y) out of the previous image bounds
Diffstat (limited to 'src/gd_gif_out.c')
-rw-r--r--src/gd_gif_out.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gd_gif_out.c b/src/gd_gif_out.c
index f1d73fd..c1e54fa 100644
--- a/src/gd_gif_out.c
+++ b/src/gd_gif_out.c
@@ -745,6 +745,8 @@ break_top:
/* Then the bottom row */
for (y = tim->sy - 1; y > min_y; --y) {
for (x = 0; x < tim->sx; ++x) {
+ if (!gdImageBoundsSafe(prev_tim, x,y))
+ continue;
if (!comparewithmap
(prev_tim, tim,
prev_tim->pixels[y][x],