[Bf-blender-cvs] [079791dc305] master: Fix error scaling thumbnails to zero dimensions
Campbell Barton
noreply at git.blender.org
Sat Aug 28 13:33:42 CEST 2021
Commit: 079791dc30571227393db525704baea7540fb5c6
Author: Campbell Barton
Date: Sat Aug 28 19:57:31 2021 +1000
Branches: master
https://developer.blender.org/rB079791dc30571227393db525704baea7540fb5c6
Fix error scaling thumbnails to zero dimensions
Follow up to fix for T89868.
===================================================================
M source/blender/imbuf/intern/thumbs.c
===================================================================
diff --git a/source/blender/imbuf/intern/thumbs.c b/source/blender/imbuf/intern/thumbs.c
index 19f34a6aacd..a09f06726a6 100644
--- a/source/blender/imbuf/intern/thumbs.c
+++ b/source/blender/imbuf/intern/thumbs.c
@@ -435,8 +435,9 @@ static ImBuf *thumb_create_ex(const char *file_path,
scaledy = (float)tsize;
scaledx = ((float)img->x / (float)img->y) * tsize;
}
- ex = (short)scaledx;
- ey = (short)scaledy;
+ /* Scaling down must never assign zero width/height, see: T89868. */
+ ex = MAX2(1, (short)scaledx);
+ ey = MAX2(1, (short)scaledy);
/* save some time by only scaling byte buf */
if (img->rect_float) {
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