[Bf-blender-cvs] [712fe561d58] master: UI: Fix crash when region becomes too thin

Jacques Lucke noreply at git.blender.org
Fri May 3 17:43:23 CEST 2019


Commit: 712fe561d58c78c2f9ecda2f07d4d45d36a384bf
Author: Jacques Lucke
Date:   Fri May 3 17:42:45 2019 +0200
Branches: master
https://developer.blender.org/rB712fe561d58c78c2f9ecda2f07d4d45d36a384bf

UI: Fix crash when region becomes too thin

===================================================================

M	source/blender/editors/interface/view2d_draw.c

===================================================================

diff --git a/source/blender/editors/interface/view2d_draw.c b/source/blender/editors/interface/view2d_draw.c
index 96ad888274f..2568193ee23 100644
--- a/source/blender/editors/interface/view2d_draw.c
+++ b/source/blender/editors/interface/view2d_draw.c
@@ -153,6 +153,12 @@ static void get_parallel_lines_draw_steps(const ParallelLinesSet *lines,
                                           float *r_first,
                                           uint *r_steps)
 {
+  if (region_start >= region_end) {
+    *r_first = 0;
+    *r_steps = 0;
+    return;
+  }
+
   BLI_assert(lines->distance > 0);
   BLI_assert(region_start <= region_end);



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