Commit: 0c7fc3a9618c2bd410c45953f49f836ee866502c
Author: Sybren A. Stüvel
Date: Fri Jun 8 13:52:18 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB0c7fc3a9618c2bd410c45953f49f836ee866502c
Alembic import: assign cache_file handle to original datablock
===================================================================
M source/blender/blenkernel/intern/cachefile.c
M source/blender/modifiers/intern/MOD_meshsequencecache.c
===================================================================
diff --git a/source/blender/blenkernel/intern/cachefile.c
b/source/blender/blenkernel/intern/cachefile.c
index 89c6fad086d..d0cdfd6aeed 100644
--- a/source/blender/blenkernel/intern/cachefile.c
+++ b/source/blender/blenkernel/intern/cachefile.c
@@ -146,6 +146,9 @@ void BKE_cachefile_reload(const Main *bmain, CacheFile
*cache_file)
void BKE_cachefile_ensure_handle(const Main *bmain, CacheFile *cache_file)
{
+ /* Assigning to a CoW copy is a bad idea; assign to the original
instead. */
+ BLI_assert((cache_file->id.tag & LIB_TAG_COPIED_ON_WRITE) == 0);
+
BLI_spin_lock(&spin);
if (cache_file->handle_mutex == NULL) {
cache_file->handle_mutex = BLI_mutex_alloc();
diff --git a/source/blender/modifiers/intern/MOD_meshsequencecache.c
b/source/blender/modifiers/intern/MOD_meshsequencecache.c
index 5ebf67b8d5f..abd84799457 100644
--- a/source/blender/modifiers/intern/MOD_meshsequencecache.c
+++ b/source/blender/modifiers/intern/MOD_meshsequencecache.c
@@ -103,7 +103,7 @@ static Mesh *applyModifier(
const float time = BKE_cachefile_time_offset(mcmd->cache_file, frame,
FPS);
const char *err_str = NULL;
- CacheFile *cache_file = mcmd->cache_file;
+ CacheFile *cache_file = (CacheFile
*)DEG_get_original_id(&mcmd->cache_file->id);
BKE_cachefile_ensure_handle(G.main, cache_file);
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