diff options
author | Sybren A. Stüvel <sybren> | 2021-07-06 15:36:27 +0300 |
---|---|---|
committer | Alexander Gavrilov <angavrilov@gmail.com> | 2021-07-09 12:21:12 +0300 |
commit | c04cceb40ed5574dcba8a55cfe97a1132c869895 (patch) | |
tree | ec136545e587ee4443fef8d7ea85673b5c37597b /source/blender/blenloader/intern | |
parent | b69ab42982a1da921ea9f585fceca1a53589de79 (diff) |
Fix T89435: Reordering FCurves can cause crash or corruption
Correctly reset `prev` and `next` pointers of action group FCurves when
separating them into distinct `ListBase`s per `bActionGroup`.
These `NULL` pointers are necessary to temporarily demarcate the start &
end of the `bActionGroup::channels` list. Having them still point to
other FCurves caused ordering issues when moving curves towards the
start/end of a group.
This commit corrects the above issue and adds versioning code to rectify
any ordering issues that may have been caused. For this purpose the
`BKE_action_groups_reconstruct()` function is rewritten to avoid relying
on the `bAction::curves` list order or `prev` link integrity.
Differential Revision: https://developer.blender.org/D11811
Diffstat (limited to 'source/blender/blenloader/intern')
-rw-r--r-- | source/blender/blenloader/intern/versioning_300.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/source/blender/blenloader/intern/versioning_300.c b/source/blender/blenloader/intern/versioning_300.c index f16b73f3c7b..5d3bde428c0 100644 --- a/source/blender/blenloader/intern/versioning_300.c +++ b/source/blender/blenloader/intern/versioning_300.c @@ -34,6 +34,7 @@ #include "DNA_modifier_types.h" #include "DNA_text_types.h" +#include "BKE_action.h" #include "BKE_animsys.h" #include "BKE_collection.h" #include "BKE_fcurve_driver.h" @@ -480,17 +481,13 @@ void blo_do_versions_300(FileData *fd, Library *UNUSED(lib), Main *bmain) } } - /** - * Versioning code until next subversion bump goes here. - * - * \note Be sure to check when bumping the version: - * - "versioning_userdef.c", #blo_do_versions_userdef - * - "versioning_userdef.c", #do_versions_theme - * - * \note Keep this message at the bottom of the function. - */ - { - /* Keep this block, even when empty. */ + if (!MAIN_VERSION_ATLEAST(bmain, 300, 9)) { + /* Fix a bug where reordering FCurves and bActionGroups could cause some corruption. Just + * reconstruct all the action groups & ensure that the FCurves of a group are continuously + * stored (i.e. not mixed with other groups) to be sure. See T89435. */ + LISTBASE_FOREACH (bAction *, act, &bmain->actions) { + BKE_action_groups_reconstruct(act); + } FOREACH_NODETREE_BEGIN (bmain, ntree, id) { if (ntree->type == NTREE_GEOMETRY) { @@ -503,4 +500,17 @@ void blo_do_versions_300(FileData *fd, Library *UNUSED(lib), Main *bmain) } FOREACH_NODETREE_END; } + + /** + * Versioning code until next subversion bump goes here. + * + * \note Be sure to check when bumping the version: + * - "versioning_userdef.c", #blo_do_versions_userdef + * - "versioning_userdef.c", #do_versions_theme + * + * \note Keep this message at the bottom of the function. + */ + { + /* Keep this block, even when empty. */ + } } |