diff options
author | Campbell Barton <ideasman42@gmail.com> | 2019-02-12 01:29:18 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2019-02-12 01:38:46 +0300 |
commit | 3ec4c2f842841ca0d0f51694dc3e88dfe22195b1 (patch) | |
tree | 7fca8a48b2acd11529b2983edee13a794fa3ed07 /source/blender/blenloader/intern/versioning_dna.c | |
parent | 2a6d03493c9dbf9cc142ef1cdeb191e3929081d1 (diff) |
DNA: support versioning structs & struct members
This is only to be used rarely because it's not forwards compatible.
Replace version patching of old 2.80 DNA with a more generic API.
Diffstat (limited to 'source/blender/blenloader/intern/versioning_dna.c')
-rw-r--r-- | source/blender/blenloader/intern/versioning_dna.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/source/blender/blenloader/intern/versioning_dna.c b/source/blender/blenloader/intern/versioning_dna.c new file mode 100644 index 00000000000..d379edd83f6 --- /dev/null +++ b/source/blender/blenloader/intern/versioning_dna.c @@ -0,0 +1,59 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** \file \ingroup blenloader + * + * Apply edits to DNA at load time + * to behave as if old files were written new names. + */ + +#include "BLI_compiler_attrs.h" +#include "BLI_utildefines.h" + +#include "DNA_genfile.h" +#include "DNA_listBase.h" + +#include "BLO_readfile.h" +#include "readfile.h" + +/** + * Manipulates SDNA before calling #DNA_struct_get_compareflags, + * allowing us to rename structs and struct members. + * + * \attention Changes here will cause breakages in forward compatbility, + * Use this only in the _rare_ cases when migrating to new naming is needed. + */ +void blo_do_versions_dna(SDNA *sdna, const int versionfile, const int subversionfile) +{ +#define DNA_VERSION_ATLEAST(ver, subver) \ + (versionfile > (ver) || (versionfile == (ver) && (subversionfile >= (subver)))) + + if (!DNA_VERSION_ATLEAST(280, 2)) { + /* Version files created in the 'blender2.8' branch + * between October 2016, and November 2017 (>=280.0 and < 280.2). */ + if (versionfile >= 280) { + DNA_sdna_patch_struct(sdna, "SceneLayer", "ViewLayer"); + DNA_sdna_patch_struct(sdna, "SceneLayerEngineData", "ViewLayerEngineData"); + DNA_sdna_patch_struct_member(sdna, "FileGlobal", "cur_render_layer", "cur_view_layer"); + DNA_sdna_patch_struct_member(sdna, "ParticleEditSettings", "scene_layer", "view_layer"); + DNA_sdna_patch_struct_member(sdna, "Scene", "active_layer", "active_view_layer"); + DNA_sdna_patch_struct_member(sdna, "Scene", "render_layers", "view_layers"); + DNA_sdna_patch_struct_member(sdna, "WorkSpace", "render_layer", "view_layer"); + } + } + +#undef DNA_VERSION_ATLEAST +} |