[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [34150] trunk/blender/source/blender/ blenkernel/intern/pointcache.c: Fix for [#25526] Inmediate crash when changing amount of particles in a particle system

[Janne Karhu]

Revision: 34150
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=34150
Author:   jhk
Date:     2011-01-07 10:38:17 +0000 (Fri, 07 Jan 2011)
Log Message:
-----------
Fix for [#25526] Inmediate crash when changing amount of particles in a particle system
* Point cache index array doesn't necessarily have all particles if the particles were re-allocated recently.

Modified Paths:
--------------
    trunk/blender/source/blender/blenkernel/intern/pointcache.c

Modified: trunk/blender/source/blender/blenkernel/intern/pointcache.c
===================================================================
--- trunk/blender/source/blender/blenkernel/intern/pointcache.c	2011-01-07 10:13:30 UTC (rev 34149)
+++ trunk/blender/source/blender/blenkernel/intern/pointcache.c	2011-01-07 10:38:17 UTC (rev 34150)
@@ -1182,7 +1182,7 @@
 	int data_types = pm->data_types;
 	int i, index = pm->index_array ? pm->index_array[point_index] - 1 : point_index;
 
-	if(index < 0) {
+	if(index < 0 || point_index >= MEM_allocN_len(pm->index_array)/sizeof(int)) {
 		/* Can't give proper location without reallocation, so don't give any location.
 		 * Some points will be cached improperly, but this only happens with simulation
 		 * steps bigger than cache->step, so the cache has to be recalculated anyways