diff options
author | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2019-04-04 16:07:37 +0300 |
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committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2019-05-01 17:02:27 +0300 |
commit | 89826e0a0d8ac55881569e021c487ac5541c6612 (patch) | |
tree | c80797e8c804d43fc84a8e91396a8a86cf3a79b7 /source/blender/blenkernel/intern/constraint.c | |
parent | a72a831570822190f782e6bbecfd57b45dc2e872 (diff) |
Alembic: integrate cache file into the dependency graph
* The cache file datablock is now evaluated as part of the dependency graph,
creating/freeing the Alembic file handle matching the current frame.
Modifiers and constraints depend on this evaluation.
* Cache file handles and readers now only exist on COW datablocks, never the
original ones.
* Object data paths are flushed back to the original for the user interface.
* The cache file keeps a list of all readers associated with its handle, and
automatically frees them when the handle is freed. This kind of sharing of
data across datablocks is weak but we have no better mechanism for it.
Fix T62720: Alembic sequences not working and crashing
Differential Revision: https://developer.blender.org/D4774
Diffstat (limited to 'source/blender/blenkernel/intern/constraint.c')
-rw-r--r-- | source/blender/blenkernel/intern/constraint.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c index a475a16dd57..0e29f165992 100644 --- a/source/blender/blenkernel/intern/constraint.c +++ b/source/blender/blenkernel/intern/constraint.c @@ -4835,13 +4835,9 @@ static void transformcache_evaluate(bConstraint *con, bConstraintOb *cob, ListBa const float frame = DEG_get_ctime(cob->depsgraph); const float time = BKE_cachefile_time_offset(cache_file, frame, FPS); - /* Must always load ABC handle on original. */ - CacheFile *cache_file_orig = (CacheFile *)DEG_get_original_id(&cache_file->id); - BKE_cachefile_ensure_handle(G.main, cache_file_orig); - - if (!data->reader) { - data->reader = CacheReader_open_alembic_object( - cache_file_orig->handle, data->reader, cob->ob, data->object_path); + if (!data->reader || !STREQ(data->reader_object_path, data->object_path)) { + STRNCPY(data->reader_object_path, data->object_path); + BKE_cachefile_reader_open(cache_file, &data->reader, cob->ob, data->object_path); } ABC_get_transform(data->reader, cob->matrix, time, cache_file->scale); @@ -4859,12 +4855,8 @@ static void transformcache_copy(bConstraint *con, bConstraint *srccon) BLI_strncpy(dst->object_path, src->object_path, sizeof(dst->object_path)); dst->cache_file = src->cache_file; - -#ifdef WITH_ALEMBIC - if (dst->reader) { - CacheReader_incref(dst->reader); - } -#endif + dst->reader = NULL; + dst->reader_object_path[0] = '\0'; } static void transformcache_free(bConstraint *con) @@ -4872,10 +4864,8 @@ static void transformcache_free(bConstraint *con) bTransformCacheConstraint *data = con->data; if (data->reader) { -#ifdef WITH_ALEMBIC - CacheReader_free(data->reader); -#endif - data->reader = NULL; + BKE_cachefile_reader_free(data->cache_file, &data->reader); + data->reader_object_path[0] = '\0'; } } |