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blender-archive/source/blender/makesrna/intern/rna_cachefile.c
Brecht Van Lommel 89826e0a0d 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
2019-05-01 16:02:27 +02:00

182 lines
6.8 KiB
C

/*
* 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.
*
* The Original Code is Copyright (C) 2016 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup RNA
*/
#include "DNA_cachefile_types.h"
#include "DNA_scene_types.h"
#include "RNA_access.h"
#include "RNA_define.h"
#include "RNA_enum_types.h"
#include "rna_internal.h"
#ifdef RNA_RUNTIME
# include "BLI_string.h"
# include "BKE_cachefile.h"
# include "DEG_depsgraph.h"
# include "WM_api.h"
# include "WM_types.h"
# ifdef WITH_ALEMBIC
# include "../../../alembic/ABC_alembic.h"
# endif
static void rna_CacheFile_update(Main *UNUSED(bmain), Scene *UNUSED(scene), PointerRNA *ptr)
{
CacheFile *cache_file = (CacheFile *)ptr->data;
DEG_id_tag_update(&cache_file->id, ID_RECALC_COPY_ON_WRITE);
WM_main_add_notifier(NC_OBJECT | ND_DRAW, NULL);
}
static void rna_CacheFile_object_paths_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
{
CacheFile *cache_file = (CacheFile *)ptr->data;
rna_iterator_listbase_begin(iter, &cache_file->object_paths, NULL);
}
#else
/* cachefile.object_paths */
static void rna_def_alembic_object_path(BlenderRNA *brna)
{
StructRNA *srna = RNA_def_struct(brna, "AlembicObjectPath", NULL);
RNA_def_struct_sdna(srna, "AlembicObjectPath");
RNA_def_struct_ui_text(srna, "Object Path", "Path of an object inside of an Alembic archive");
RNA_def_struct_ui_icon(srna, ICON_NONE);
PropertyRNA *prop = RNA_def_property(srna, "path", PROP_STRING, PROP_NONE);
RNA_def_property_ui_text(prop, "Path", "Object path");
RNA_def_struct_name_property(srna, prop);
}
/* cachefile.object_paths */
static void rna_def_cachefile_object_paths(BlenderRNA *brna, PropertyRNA *cprop)
{
RNA_def_property_srna(cprop, "AlembicObjectPaths");
StructRNA *srna = RNA_def_struct(brna, "AlembicObjectPaths", NULL);
RNA_def_struct_sdna(srna, "CacheFile");
RNA_def_struct_ui_text(srna, "Object Paths", "Collection of object paths");
}
static void rna_def_cachefile(BlenderRNA *brna)
{
StructRNA *srna = RNA_def_struct(brna, "CacheFile", "ID");
RNA_def_struct_sdna(srna, "CacheFile");
RNA_def_struct_ui_text(srna, "CacheFile", "");
RNA_def_struct_ui_icon(srna, ICON_FILE);
PropertyRNA *prop = RNA_def_property(srna, "filepath", PROP_STRING, PROP_FILEPATH);
RNA_def_property_ui_text(prop, "File Path", "Path to external displacements file");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
prop = RNA_def_property(srna, "is_sequence", PROP_BOOLEAN, PROP_NONE);
RNA_def_property_ui_text(
prop, "Sequence", "Whether the cache is separated in a series of files");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
/* ----------------- For Scene time ------------------- */
prop = RNA_def_property(srna, "override_frame", PROP_BOOLEAN, PROP_NONE);
RNA_def_property_ui_text(prop,
"Override Frame",
"Whether to use a custom frame for looking up data in the cache file,"
" instead of using the current scene frame");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
prop = RNA_def_property(srna, "frame", PROP_FLOAT, PROP_NONE);
RNA_def_property_float_sdna(prop, NULL, "frame");
RNA_def_property_range(prop, -MAXFRAME, MAXFRAME);
RNA_def_property_ui_text(prop,
"Frame",
"The time to use for looking up the data in the cache file,"
" or to determine which file to use in a file sequence");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
prop = RNA_def_property(srna, "frame_offset", PROP_FLOAT, PROP_NONE);
RNA_def_property_float_sdna(prop, NULL, "frame_offset");
RNA_def_property_range(prop, -MAXFRAME, MAXFRAME);
RNA_def_property_ui_text(prop,
"Frame Offset",
"Subtracted from the current frame to use for "
"looking up the data in the cache file, or to "
"determine which file to use in a file sequence");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
/* ----------------- Axis Conversion ----------------- */
prop = RNA_def_property(srna, "forward_axis", PROP_ENUM, PROP_NONE);
RNA_def_property_enum_sdna(prop, NULL, "forward_axis");
RNA_def_property_enum_items(prop, rna_enum_object_axis_items);
RNA_def_property_ui_text(prop, "Forward", "");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
prop = RNA_def_property(srna, "up_axis", PROP_ENUM, PROP_NONE);
RNA_def_property_enum_sdna(prop, NULL, "up_axis");
RNA_def_property_enum_items(prop, rna_enum_object_axis_items);
RNA_def_property_ui_text(prop, "Up", "");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
prop = RNA_def_property(srna, "scale", PROP_FLOAT, PROP_NONE);
RNA_def_property_float_sdna(prop, NULL, "scale");
RNA_def_property_range(prop, 0.0001f, 1000.0f);
RNA_def_property_ui_text(
prop,
"Scale",
"Value by which to enlarge or shrink the object with respect to the world's origin"
" (only applicable through a Transform Cache constraint)");
RNA_def_property_update(prop, 0, "rna_CacheFile_update");
/* object paths */
prop = RNA_def_property(srna, "object_paths", PROP_COLLECTION, PROP_NONE);
RNA_def_property_collection_sdna(prop, NULL, "object_paths", NULL);
RNA_def_property_collection_funcs(prop,
"rna_CacheFile_object_paths_begin",
"rna_iterator_listbase_next",
"rna_iterator_listbase_end",
"rna_iterator_listbase_get",
NULL,
NULL,
NULL,
NULL);
RNA_def_property_struct_type(prop, "AlembicObjectPath");
RNA_def_property_srna(prop, "AlembicObjectPaths");
RNA_def_property_ui_text(
prop, "Object Paths", "Paths of the objects inside the Alembic archive");
rna_def_cachefile_object_paths(brna, prop);
rna_def_animdata_common(srna);
}
void RNA_def_cachefile(BlenderRNA *brna)
{
rna_def_cachefile(brna);
rna_def_alembic_object_path(brna);
}
#endif