Fix T61473: Crash particle system is updating

Original and localized particle settings were sharing some
of the runtime pointers.

2 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_rand.h b/source/blender/blenlib/BLI_rand.h
index 8a1479b4f68..fd078ae3a36 100644
--- a/source/blender/blenlib/BLI_rand.h
+++ b/source/blender/blenlib/BLI_rand.h
@@ -37,6 +37,7 @@ typedef struct RNG_THREAD_ARRAY RNG_THREAD_ARRAY;
 
 struct RNG *BLI_rng_new(unsigned int seed);
 struct RNG *BLI_rng_new_srandom(unsigned int seed);
+struct RNG *BLI_rng_copy(struct RNG *rng) ATTR_NONNULL(1);
 void        BLI_rng_free(struct RNG *rng) ATTR_NONNULL(1);
 
 void        BLI_rng_seed(struct RNG *rng, unsigned int seed) ATTR_NONNULL(1);
diff --git a/source/blender/blenlib/intern/rand.c b/source/blender/blenlib/intern/rand.c
index 262ae67a5f7..e453d5a01f8 100644
--- a/source/blender/blenlib/intern/rand.c
+++ b/source/blender/blenlib/intern/rand.c
@@ -76,6 +76,11 @@ RNG *BLI_rng_new_srandom(unsigned int seed)
 	return rng;
 }
 
+RNG *BLI_rng_copy(RNG *rng)
+{
+	return MEM_dupallocN(rng);
+}
+
 void BLI_rng_free(RNG *rng)
 {
 	MEM_freeN(rng);