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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): Kevin Dietrich.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/cachefile.c
* \ingroup bke
*/
#include "DNA_anim_types.h"
#include "DNA_cachefile_types.h"
#include "DNA_constraint_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "BLI_fileops.h"
#include "BLI_listbase.h"
#include "BLI_path_util.h"
#include "BLI_string.h"
#include "BLI_threads.h"
#include "BLI_utildefines.h"
#include "BKE_animsys.h"
#include "BKE_cachefile.h"
#include "BKE_global.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_modifier.h"
#include "BKE_scene.h"
#ifdef WITH_ALEMBIC
# include "ABC_alembic.h"
#endif
static SpinLock spin;
void BKE_cachefiles_init(void)
{
BLI_spin_init(&spin);
}
void BKE_cachefiles_exit(void)
{
BLI_spin_end(&spin);
}
void *BKE_cachefile_add(Main *bmain, const char *name)
{
CacheFile *cache_file = BKE_libblock_alloc(bmain, ID_CF, name);
BKE_cachefile_init(cache_file);
return cache_file;
}
void BKE_cachefile_init(CacheFile *cache_file)
{
cache_file->handle = NULL;
cache_file->filepath[0] = '\0';
cache_file->override_frame = false;
cache_file->frame = 0.0f;
cache_file->is_sequence = false;
cache_file->scale = 1.0f;
cache_file->handle_mutex = BLI_mutex_alloc();
}
/** Free (or release) any data used by this cachefile (does not free the cachefile itself). */
void BKE_cachefile_free(CacheFile *cache_file)
{
BKE_animdata_free((ID *)cache_file, false);
#ifdef WITH_ALEMBIC
ABC_free_handle(cache_file->handle);
#endif
BLI_mutex_free(cache_file->handle_mutex);
BLI_freelistN(&cache_file->object_paths);
}
CacheFile *BKE_cachefile_copy(Main *bmain, CacheFile *cache_file)
{
CacheFile *new_cache_file = BKE_libblock_copy(bmain, &cache_file->id);
new_cache_file->handle = NULL;
BLI_listbase_clear(&cache_file->object_paths);
BKE_id_copy_ensure_local(bmain, &cache_file->id, &new_cache_file->id);
return new_cache_file;
}
void BKE_cachefile_make_local(Main *bmain, CacheFile *cache_file, const bool lib_local)
{
BKE_id_make_local_generic(bmain, &cache_file->id, true, lib_local);
}
void BKE_cachefile_reload(const Main *bmain, CacheFile *cache_file)
{
char filepath[FILE_MAX];
BLI_strncpy(filepath, cache_file->filepath, sizeof(filepath));
BLI_path_abs(filepath, ID_BLEND_PATH(bmain, &cache_file->id));
#ifdef WITH_ALEMBIC
if (cache_file->handle) {
ABC_free_handle(cache_file->handle);
}
cache_file->handle = ABC_create_handle(filepath, &cache_file->object_paths);
#endif
}
void BKE_cachefile_ensure_handle(const Main *bmain, CacheFile *cache_file)
{
BLI_spin_lock(&spin);
if (cache_file->handle_mutex == NULL) {
cache_file->handle_mutex = BLI_mutex_alloc();
}
BLI_spin_unlock(&spin);
BLI_mutex_lock(cache_file->handle_mutex);
if (cache_file->handle == NULL) {
BKE_cachefile_reload(bmain, cache_file);
}
BLI_mutex_unlock(cache_file->handle_mutex);
}
void BKE_cachefile_update_frame(Main *bmain, Scene *scene, const float ctime, const float fps)
{
CacheFile *cache_file;
char filename[FILE_MAX];
for (cache_file = bmain->cachefiles.first; cache_file; cache_file = cache_file->id.next) {
/* Execute drivers only, as animation has already been done. */
BKE_animsys_evaluate_animdata(scene, &cache_file->id, cache_file->adt, ctime, ADT_RECALC_DRIVERS);
if (!cache_file->is_sequence) {
continue;
}
const float time = BKE_cachefile_time_offset(cache_file, ctime, fps);
if (BKE_cachefile_filepath_get(bmain, cache_file, time, filename)) {
#ifdef WITH_ALEMBIC
ABC_free_handle(cache_file->handle);
cache_file->handle = ABC_create_handle(filename, NULL);
#endif
}
}
}
bool BKE_cachefile_filepath_get(
const Main *bmain, const CacheFile *cache_file, float frame,
char r_filepath[FILE_MAX])
{
BLI_strncpy(r_filepath, cache_file->filepath, FILE_MAX);
BLI_path_abs(r_filepath, ID_BLEND_PATH(bmain, &cache_file->id));
int fframe;
int frame_len;
if (cache_file->is_sequence && BLI_path_frame_get(r_filepath, &fframe, &frame_len)) {
char ext[32];
BLI_path_frame_strip(r_filepath, true, ext);
BLI_path_frame(r_filepath, frame, frame_len);
BLI_ensure_extension(r_filepath, FILE_MAX, ext);
/* TODO(kevin): store sequence range? */
return BLI_exists(r_filepath);
}
return true;
}
float BKE_cachefile_time_offset(CacheFile *cache_file, const float time, const float fps)
{
const float frame = (cache_file->override_frame ? cache_file->frame : time);
return cache_file->is_sequence ? frame : frame / fps;
}
/* TODO(kevin): replace this with some depsgraph mechanism, or something similar. */
void BKE_cachefile_clean(Scene *scene, CacheFile *cache_file)
{
for (Base *base = scene->base.first; base; base = base->next) {
Object *ob = base->object;
ModifierData *md = modifiers_findByType(ob, eModifierType_MeshSequenceCache);
if (md) {
MeshSeqCacheModifierData *mcmd = (MeshSeqCacheModifierData *)md;
if (cache_file == mcmd->cache_file) {
CacheReader_free(mcmd->reader);
mcmd->reader = NULL;
mcmd->object_path[0] = '\0';
}
}
for (bConstraint *con = ob->constraints.first; con; con = con->next) {
if (con->type != CONSTRAINT_TYPE_TRANSFORM_CACHE) {
continue;
}
bTransformCacheConstraint *data = con->data;
if (cache_file == data->cache_file) {
CacheReader_free(data->reader);
data->reader = NULL;
data->object_path[0] = '\0';
}
}
}
}
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