[Bf-blender-cvs] [48ca66cfe78] master: Fix T77195: Crash with edit-mesh viewport measurements enabled
Campbell Barton
noreply at git.blender.org
Wed Jun 10 05:47:12 CEST 2020
Commit: 48ca66cfe7826985f94a72af6cd6f750d797a46b
Author: Campbell Barton
Date: Wed Jun 10 13:36:30 2020 +1000
Branches: master
https://developer.blender.org/rB48ca66cfe7826985f94a72af6cd6f750d797a46b
Fix T77195: Crash with edit-mesh viewport measurements enabled
Simplify looping over faces & tessellation data.
Regression in 6526c3ced8b5, the index accessed wasn't valid.
===================================================================
M source/blender/draw/intern/draw_manager_text.c
===================================================================
diff --git a/source/blender/draw/intern/draw_manager_text.c b/source/blender/draw/intern/draw_manager_text.c
index 23956df71e8..f4601fe4f48 100644
--- a/source/blender/draw/intern/draw_manager_text.c
+++ b/source/blender/draw/intern/draw_manager_text.c
@@ -395,16 +395,19 @@ void DRW_text_edit_mesh_measure_stats(ARegion *region,
UI_GetThemeColor3ubv(TH_DRAWEXTRA_FACEAREA, col);
- int i, n, numtri;
+ int i, n;
BMFace *f = NULL;
+ /* Alternative to using `poly_to_tri_count(i, BM_elem_index_get(f->l_first))`
+ * without having to add an extra loop. */
+ int looptri_index = 0;
BM_ITER_MESH_INDEX (f, &iter, em->bm, BM_FACES_OF_MESH, i) {
+ const int f_looptri_len = f->len - 2;
if (BM_elem_flag_test(f, BM_ELEM_SELECT)) {
n = 0;
- numtri = f->len - 2;
area = 0;
zero_v3(vmid);
- BMLoop *(*l)[3] = &em->looptris[poly_to_tri_count(i, BM_elem_index_get(f->l_first))];
- for (int j = 0; j < numtri; j++) {
+ BMLoop *(*l)[3] = &em->looptris[looptri_index];
+ for (int j = 0; j < f_looptri_len; j++) {
if (use_coords) {
copy_v3_v3(v1, vert_coords[BM_elem_index_get(l[j][0]->v)]);
@@ -449,6 +452,7 @@ void DRW_text_edit_mesh_measure_stats(ARegion *region,
DRW_text_cache_add(dt, vmid, numstr, numstr_len, 0, 0, txt_flag, col);
}
+ looptri_index += f_looptri_len;
}
}
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