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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. All rights reserved. */
/** \file
* \ingroup sequencer
*/
#include "SEQ_sequencer.h"
#include "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_listbase.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 *seq_by_name;
GHash *meta_by_seq;
GHash *effects_by_seq;
eSequenceLookupTag tag;
} SequenceLookup;
static void seq_sequence_lookup_init(struct SequenceLookup *lookup)
{
lookup->seq_by_name = BLI_ghash_str_new(__func__);
lookup->meta_by_seq = BLI_ghash_ptr_new(__func__);
lookup->effects_by_seq = BLI_ghash_ptr_new(__func__);
lookup->tag |= SEQ_LOOKUP_TAG_INVALID;
}
static void seq_sequence_lookup_append_effect(Sequence *input,
Sequence *effect,
struct SequenceLookup *lookup)
{
if (input == NULL) {
return;
}
SeqCollection *effects = BLI_ghash_lookup(lookup->effects_by_seq, input);
if (effects == NULL) {
effects = SEQ_collection_create(__func__);
BLI_ghash_insert(lookup->effects_by_seq, input, effects);
}
SEQ_collection_append_strip(effect, effects);
}
static void seq_sequence_lookup_build_effect(Sequence *seq, struct SequenceLookup *lookup)
{
if ((seq->type & SEQ_TYPE_EFFECT) == 0) {
return;
}
seq_sequence_lookup_append_effect(seq->seq1, seq, lookup);
seq_sequence_lookup_append_effect(seq->seq2, seq, lookup);
}
static void seq_sequence_lookup_build_from_seqbase(Sequence *parent_meta,
const ListBase *seqbase,
struct SequenceLookup *lookup)
{
LISTBASE_FOREACH (Sequence *, seq, seqbase) {
BLI_ghash_insert(lookup->seq_by_name, seq->name + 2, seq);
BLI_ghash_insert(lookup->meta_by_seq, seq, parent_meta);
seq_sequence_lookup_build_effect(seq, lookup);
if (seq->type == SEQ_TYPE_META) {
seq_sequence_lookup_build_from_seqbase(seq, &seq->seqbase, lookup);
}
}
}
static void seq_sequence_lookup_build(const struct Scene *scene, struct SequenceLookup *lookup)
{
Editing *ed = SEQ_editing_get(scene);
seq_sequence_lookup_build_from_seqbase(NULL, &ed->seqbase, lookup);
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)->seq_by_name, NULL, NULL);
BLI_ghash_free((*lookup)->meta_by_seq, NULL, NULL);
BLI_ghash_free((*lookup)->effects_by_seq, NULL, SEQ_collection_free_void_p);
(*lookup)->seq_by_name = NULL;
(*lookup)->meta_by_seq = NULL;
(*lookup)->effects_by_seq = 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_seq_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->seq_by_name, key);
BLI_mutex_unlock(&lookup_lock);
return seq;
}
Sequence *seq_sequence_lookup_meta_by_seq(const Scene *scene, const Sequence *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->meta_by_seq, key);
BLI_mutex_unlock(&lookup_lock);
return seq;
}
SeqCollection *seq_sequence_lookup_effects_by_seq(const Scene *scene, const Sequence *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;
SeqCollection *effects = BLI_ghash_lookup(lookup->effects_by_seq, key);
BLI_mutex_unlock(&lookup_lock);
return effects;
}
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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