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/*
* 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) 2021 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup sequencer
*/
#include "SEQ_sequencer.h"
#include "DNA_listBase.h"
#include "DNA_scene_types.h"
#include "DNA_sequence_types.h"
#include "SEQ_iterator.h"
#include "BLI_ghash.h"
#include "BLI_string.h"
#include "BLI_sys_types.h"
#include "BLI_threads.h"
#include <string.h>
#include "MEM_guardedalloc.h"
static ThreadMutex lookup_lock = BLI_MUTEX_INITIALIZER;
typedef struct SequenceLookup {
GHash *by_name;
eSequenceLookupTag tag;
} SequenceLookup;
static void seq_sequence_lookup_init(struct SequenceLookup *lookup)
{
lookup->by_name = BLI_ghash_str_new(__func__);
lookup->tag |= SEQ_LOOKUP_TAG_INVALID;
}
static void seq_sequence_lookup_build(const struct Scene *scene, struct SequenceLookup *lookup)
{
SeqCollection *all_strips = SEQ_query_all_strips_recursive(&scene->ed->seqbase);
Sequence *seq;
SEQ_ITERATOR_FOREACH (seq, all_strips) {
BLI_ghash_insert(lookup->by_name, seq->name + 2, seq);
}
SEQ_collection_free(all_strips);
lookup->tag &= ~SEQ_LOOKUP_TAG_INVALID;
}
static SequenceLookup *seq_sequence_lookup_new(void)
{
SequenceLookup *lookup = MEM_callocN(sizeof(SequenceLookup), __func__);
seq_sequence_lookup_init(lookup);
return lookup;
}
static void seq_sequence_lookup_free(struct SequenceLookup **lookup)
{
if (*lookup == NULL) {
return;
}
BLI_ghash_free((*lookup)->by_name, NULL, NULL);
(*lookup)->by_name = NULL;
MEM_freeN(*lookup);
*lookup = NULL;
}
static void seq_sequence_lookup_rebuild(const struct Scene *scene, struct SequenceLookup **lookup)
{
seq_sequence_lookup_free(lookup);
*lookup = seq_sequence_lookup_new();
seq_sequence_lookup_build(scene, *lookup);
}
static bool seq_sequence_lookup_is_valid(const struct SequenceLookup *lookup)
{
return (lookup->tag & SEQ_LOOKUP_TAG_INVALID) == 0;
}
static void seq_sequence_lookup_update_if_needed(const struct Scene *scene,
struct SequenceLookup **lookup)
{
if (!scene->ed) {
return;
}
if (*lookup && seq_sequence_lookup_is_valid(*lookup)) {
return;
}
seq_sequence_lookup_rebuild(scene, lookup);
}
void SEQ_sequence_lookup_free(const Scene *scene)
{
BLI_assert(scene->ed);
BLI_mutex_lock(&lookup_lock);
SequenceLookup *lookup = scene->ed->runtime.sequence_lookup;
seq_sequence_lookup_free(&lookup);
BLI_mutex_unlock(&lookup_lock);
}
Sequence *SEQ_sequence_lookup_by_name(const Scene *scene, const char *key)
{
BLI_assert(scene->ed);
BLI_mutex_lock(&lookup_lock);
seq_sequence_lookup_update_if_needed(scene, &scene->ed->runtime.sequence_lookup);
SequenceLookup *lookup = scene->ed->runtime.sequence_lookup;
Sequence *seq = BLI_ghash_lookup(lookup->by_name, key);
BLI_mutex_unlock(&lookup_lock);
return seq;
}
void SEQ_sequence_lookup_tag(const Scene *scene, eSequenceLookupTag tag)
{
if (!scene->ed) {
return;
}
BLI_mutex_lock(&lookup_lock);
SequenceLookup *lookup = scene->ed->runtime.sequence_lookup;
if (lookup != NULL) {
lookup->tag |= tag;
}
BLI_mutex_unlock(&lookup_lock);
}
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