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| author | Robin Watts <robin.watts@artifex.com> | 2012-04-20 15:45:09 +0100 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2012-04-20 15:45:09 +0100 |
| commit | 9fbd2de7411f6c87c6f1ad0d9adfba9fe5164e0f (patch) | |
| tree | acbf3555988babdd4bd37b0e218a6d384676a07e /draw | |
| parent | 69849ca6b0eb3db01bccf2b1c329b7b0787398df (diff) | |
| download | mupdf-9fbd2de7411f6c87c6f1ad0d9adfba9fe5164e0f.tar.xz | |
Bug 692995: Fix hang when rendering image.
Once the shape was combined with the image in the file in question
the width/height drop to be below zero. Detect this case and bale.
File rendering looks fine.
Diffstat (limited to 'draw')
| -rw-r--r-- | draw/draw_affine.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/draw/draw_affine.c b/draw/draw_affine.c index 483fcfd2..4e21ced0 100644 --- a/draw/draw_affine.c +++ b/draw/draw_affine.c @@ -645,6 +645,8 @@ fz_paint_image_imp(fz_pixmap *dst, fz_bbox scissor, fz_pixmap *shape, fz_pixmap if (shape && shape->y + shape->h < h) h = shape->y + shape->h; h -= y; + if (w < 0 || h < 0) + return; /* map from screen space (x,y) to image space (u,v) */ inv = fz_scale(1.0f / img->w, 1.0f / img->h); |