diff options
Diffstat (limited to 'draw')
| -rw-r--r-- | draw/draw_device.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/draw/draw_device.c b/draw/draw_device.c index 7e40ef3f..cb6760ea 100644 --- a/draw/draw_device.c +++ b/draw/draw_device.c @@ -1437,6 +1437,11 @@ fz_draw_begin_tile(fz_device *devp, fz_rect area, fz_rect view, float xstep, flo fz_knockout_begin(dev); bbox = fz_round_rect(fz_transform_rect(ctm, view)); + /* We should never have a bbox that entirely covers our destination. + * If we do, then the check for only 1 tile being visible above has + * failed. */ + assert(bbox.x0 > dev->dest->x || bbox.x1 < dev->dest->x + dev->dest->w || + bbox.y0 > dev->dest->y || bbox.y1 < dev->dest->y + dev->dest->h); dest = fz_new_pixmap_with_rect(dev->ctx, model, bbox); /* FIXME: See note #1 */ fz_clear_pixmap(dest); |