diff options
Diffstat (limited to 'source/blender/editors/space_view3d/view3d_draw.c')
| -rw-r--r-- | source/blender/editors/space_view3d/view3d_draw.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/source/blender/editors/space_view3d/view3d_draw.c b/source/blender/editors/space_view3d/view3d_draw.c index 51a2d0510d8..95a1ab87348 100644 --- a/source/blender/editors/space_view3d/view3d_draw.c +++ b/source/blender/editors/space_view3d/view3d_draw.c @@ -1488,14 +1488,15 @@ ImBuf *view3d_read_backbuf(ViewContext *vc, short xmin, short ymin, short xmax, short xminc, yminc, xmaxc, ymaxc, xs, ys; /* clip */ - if (xmin < 0) xminc = 0; else xminc = xmin; - if (xmax >= vc->ar->winx) xmaxc = vc->ar->winx - 1; else xmaxc = xmax; - if (xminc > xmaxc) return NULL; + xminc = max_ii(xmin, 0); + yminc = max_ii(ymin, 0); + xmaxc = min_ii(xmax, vc->ar->winx - 1); + ymaxc = min_ii(ymax, vc->ar->winy - 1); + + if (UNLIKELY((xminc > xmaxc) || (yminc > ymaxc))) { + return NULL; + } - if (ymin < 0) yminc = 0; else yminc = ymin; - if (ymax >= vc->ar->winy) ymaxc = vc->ar->winy - 1; else ymaxc = ymax; - if (yminc > ymaxc) return NULL; - ibuf = IMB_allocImBuf((xmaxc - xminc + 1), (ymaxc - yminc + 1), 32, IB_rect); view3d_validate_backbuf(vc); |