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test2/source/blender/sequencer/intern/strip_relations.cc
Falk David ff91c27481 Cleanup: VSE: Rename SequenceType to StripType as well as flags 
Rename the flags from `SEQ_TYPE_*` to `STRIP_TYPE_*`.

Pull Request: https://projects.blender.org/blender/blender/pulls/132753
2025-01-07 16:10:36 +01:00

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/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
* SPDX-FileCopyrightText: 2003-2009 Blender Authors
* SPDX-FileCopyrightText: 2005-2006 Peter Schlaile <peter [at] schlaile [dot] de>
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bke
*/
#include "DNA_scene_types.h"
#include "DNA_sequence_types.h"
#include "BLI_ghash.h"
#include "BLI_listbase.h"
#include "BLI_math_base.h"
#include "BLI_session_uid.h"
#include "BKE_main.hh"
#include "BKE_report.hh"
#include "DEG_depsgraph.hh"
#include "MOV_read.hh"
#include "SEQ_iterator.hh"
#include "SEQ_prefetch.hh"
#include "SEQ_relations.hh"
#include "SEQ_sequencer.hh"
#include "SEQ_time.hh"
#include "SEQ_utils.hh"
#include "effects/effects.hh"
#include "image_cache.hh"
#include "utils.hh"
bool SEQ_relation_is_effect_of_strip(const Strip *effect, const Strip *input)
{
return ELEM(input, effect->seq1, effect->seq2);
}
/* check whether sequence cur depends on seq */
static bool strip_relations_check_depend(const Scene *scene, Strip *strip, Strip *cur)
{
if (SEQ_relation_is_effect_of_strip(cur, strip)) {
return true;
}
/* sequences are not intersecting in time, assume no dependency exists between them */
if (SEQ_time_right_handle_frame_get(scene, cur) < SEQ_time_left_handle_frame_get(scene, strip) ||
SEQ_time_left_handle_frame_get(scene, cur) > SEQ_time_right_handle_frame_get(scene, strip))
{
return false;
}
/* checking sequence is below reference one, not dependent on it */
if (cur->machine < strip->machine) {
return false;
}
/* sequence is not blending with lower machines, no dependency here occurs
* check for non-effects only since effect could use lower machines as input
*/
if ((cur->type & STRIP_TYPE_EFFECT) == 0 &&
((cur->blend_mode == SEQ_BLEND_REPLACE) ||
(cur->blend_mode == STRIP_TYPE_CROSS && cur->blend_opacity == 100.0f)))
{
return false;
}
return true;
}
static void sequence_do_invalidate_dependent(Scene *scene, Strip *strip, ListBase *seqbase)
{
LISTBASE_FOREACH (Strip *, cur, seqbase) {
if (cur == strip) {
continue;
}
if (strip_relations_check_depend(scene, strip, cur)) {
/* Effect must be invalidated completely if they depend on invalidated strip. */
if ((cur->type & STRIP_TYPE_EFFECT) != 0) {
seq_cache_cleanup_sequence(scene, cur, strip, SEQ_CACHE_ALL_TYPES, false);
}
else {
/* In case of alpha over for example only invalidate composite image */
seq_cache_cleanup_sequence(
scene, cur, strip, SEQ_CACHE_STORE_COMPOSITE | SEQ_CACHE_STORE_FINAL_OUT, false);
}
}
if (cur->seqbase.first) {
sequence_do_invalidate_dependent(scene, strip, &cur->seqbase);
}
}
}
static void sequence_invalidate_cache(Scene *scene,
Strip *strip,
bool invalidate_self,
int invalidate_types)
{
Editing *ed = scene->ed;
if (invalidate_self) {
seq_cache_cleanup_sequence(scene, strip, strip, invalidate_types, false);
}
if (strip->effectdata && strip->type == STRIP_TYPE_SPEED) {
strip_effect_speed_rebuild_map(scene, strip);
}
blender::seq::media_presence_invalidate_strip(scene, strip);
sequence_do_invalidate_dependent(scene, strip, &ed->seqbase);
DEG_id_tag_update(&scene->id, ID_RECALC_SEQUENCER_STRIPS);
SEQ_prefetch_stop(scene);
}
/* Find meta-strips that contain invalidated_seq and invalidate them. */
static bool strip_relations_find_and_invalidate_metas(Scene *scene,
Strip *invalidated_seq,
Strip *meta_seq)
{
ListBase *seqbase;
if (meta_seq == nullptr) {
Editing *ed = SEQ_editing_get(scene);
seqbase = &ed->seqbase;
}
else {
seqbase = &meta_seq->seqbase;
}
LISTBASE_FOREACH (Strip *, strip, seqbase) {
if (strip->type == STRIP_TYPE_META) {
if (strip_relations_find_and_invalidate_metas(scene, invalidated_seq, strip)) {
sequence_invalidate_cache(scene, strip, true, SEQ_CACHE_ALL_TYPES);
return true;
}
}
if (strip == invalidated_seq && meta_seq != nullptr) {
sequence_invalidate_cache(scene, meta_seq, true, SEQ_CACHE_ALL_TYPES);
return true;
}
}
return false;
}
void SEQ_relations_invalidate_cache_in_range(Scene *scene,
Strip *strip,
Strip *range_mask,
int invalidate_types)
{
seq_cache_cleanup_sequence(scene, strip, range_mask, invalidate_types, true);
strip_relations_find_and_invalidate_metas(scene, strip, nullptr);
}
void SEQ_relations_invalidate_cache_raw(Scene *scene, Strip *strip)
{
sequence_invalidate_cache(scene, strip, true, SEQ_CACHE_ALL_TYPES);
strip_relations_find_and_invalidate_metas(scene, strip, nullptr);
}
void SEQ_relations_invalidate_cache_preprocessed(Scene *scene, Strip *strip)
{
sequence_invalidate_cache(scene,
strip,
true,
SEQ_CACHE_STORE_PREPROCESSED | SEQ_CACHE_STORE_COMPOSITE |
SEQ_CACHE_STORE_FINAL_OUT);
strip_relations_find_and_invalidate_metas(scene, strip, nullptr);
}
void SEQ_relations_invalidate_cache_composite(Scene *scene, Strip *strip)
{
if (strip->type == STRIP_TYPE_SOUND_RAM) {
return;
}
sequence_invalidate_cache(
scene, strip, true, SEQ_CACHE_STORE_COMPOSITE | SEQ_CACHE_STORE_FINAL_OUT);
strip_relations_find_and_invalidate_metas(scene, strip, nullptr);
}
void SEQ_relations_invalidate_dependent(Scene *scene, Strip *strip)
{
if (strip->type == STRIP_TYPE_SOUND_RAM) {
return;
}
sequence_invalidate_cache(
scene, strip, false, SEQ_CACHE_STORE_COMPOSITE | SEQ_CACHE_STORE_FINAL_OUT);
strip_relations_find_and_invalidate_metas(scene, strip, nullptr);
}
static void invalidate_scene_strips(Scene *scene, Scene *scene_target, ListBase *seqbase)
{
for (Strip *strip = static_cast<Strip *>(seqbase->first); strip != nullptr; strip = strip->next)
{
if (strip->scene == scene_target) {
SEQ_relations_invalidate_cache_raw(scene, strip);
}
if (strip->seqbase.first != nullptr) {
invalidate_scene_strips(scene, scene_target, &strip->seqbase);
}
}
}
void SEQ_relations_invalidate_scene_strips(Main *bmain, Scene *scene_target)
{
for (Scene *scene = static_cast<Scene *>(bmain->scenes.first); scene != nullptr;
scene = static_cast<Scene *>(scene->id.next))
{
if (scene->ed != nullptr) {
invalidate_scene_strips(scene, scene_target, &scene->ed->seqbase);
}
}
}
static void invalidate_movieclip_strips(Scene *scene, MovieClip *clip_target, ListBase *seqbase)
{
for (Strip *strip = static_cast<Strip *>(seqbase->first); strip != nullptr; strip = strip->next)
{
if (strip->clip == clip_target) {
SEQ_relations_invalidate_cache_raw(scene, strip);
}
if (strip->seqbase.first != nullptr) {
invalidate_movieclip_strips(scene, clip_target, &strip->seqbase);
}
}
}
void SEQ_relations_invalidate_movieclip_strips(Main *bmain, MovieClip *clip_target)
{
for (Scene *scene = static_cast<Scene *>(bmain->scenes.first); scene != nullptr;
scene = static_cast<Scene *>(scene->id.next))
{
if (scene->ed != nullptr) {
invalidate_movieclip_strips(scene, clip_target, &scene->ed->seqbase);
}
}
}
void SEQ_relations_free_imbuf(Scene *scene, ListBase *seqbase, bool for_render)
{
if (scene->ed == nullptr) {
return;
}
SEQ_cache_cleanup(scene);
SEQ_prefetch_stop(scene);
LISTBASE_FOREACH (Strip *, strip, seqbase) {
if (for_render && SEQ_time_strip_intersects_frame(scene, strip, scene->r.cfra)) {
continue;
}
if (strip->data) {
if (strip->type == STRIP_TYPE_MOVIE) {
SEQ_relations_sequence_free_anim(strip);
}
if (strip->type == STRIP_TYPE_SPEED) {
strip_effect_speed_rebuild_map(scene, strip);
}
}
if (strip->type == STRIP_TYPE_META) {
SEQ_relations_free_imbuf(scene, &strip->seqbase, for_render);
}
if (strip->type == STRIP_TYPE_SCENE) {
/* FIXME: recurse downwards,
* but do recurse protection somehow! */
}
}
}
static void sequencer_all_free_anim_ibufs(const Scene *scene,
ListBase *seqbase,
int timeline_frame,
const int frame_range[2])
{
Editing *ed = SEQ_editing_get(scene);
for (Strip *strip = static_cast<Strip *>(seqbase->first); strip != nullptr; strip = strip->next)
{
if (!SEQ_time_strip_intersects_frame(scene, strip, timeline_frame) ||
!((frame_range[0] <= timeline_frame) && (frame_range[1] > timeline_frame)))
{
SEQ_relations_sequence_free_anim(strip);
}
if (strip->type == STRIP_TYPE_META) {
int meta_range[2];
MetaStack *ms = SEQ_meta_stack_active_get(ed);
if (ms != nullptr && ms->parseq == strip) {
meta_range[0] = -MAXFRAME;
meta_range[1] = MAXFRAME;
}
else {
/* Limit frame range to meta strip. */
meta_range[0] = max_ii(frame_range[0], SEQ_time_left_handle_frame_get(scene, strip));
meta_range[1] = min_ii(frame_range[1], SEQ_time_right_handle_frame_get(scene, strip));
}
sequencer_all_free_anim_ibufs(scene, &strip->seqbase, timeline_frame, meta_range);
}
}
}
void SEQ_relations_free_all_anim_ibufs(Scene *scene, int timeline_frame)
{
Editing *ed = SEQ_editing_get(scene);
if (ed == nullptr) {
return;
}
const int frame_range[2] = {-MAXFRAME, MAXFRAME};
sequencer_all_free_anim_ibufs(scene, &ed->seqbase, timeline_frame, frame_range);
}
static Strip *sequencer_check_scene_recursion(Scene *scene, ListBase *seqbase)
{
LISTBASE_FOREACH (Strip *, strip, seqbase) {
if (strip->type == STRIP_TYPE_SCENE && strip->scene == scene) {
return strip;
}
if (strip->type == STRIP_TYPE_SCENE && (strip->flag & SEQ_SCENE_STRIPS)) {
if (strip->scene && strip->scene->ed &&
sequencer_check_scene_recursion(scene, &strip->scene->ed->seqbase))
{
return strip;
}
}
if (strip->type == STRIP_TYPE_META && sequencer_check_scene_recursion(scene, &strip->seqbase))
{
return strip;
}
}
return nullptr;
}
bool SEQ_relations_check_scene_recursion(Scene *scene, ReportList *reports)
{
Editing *ed = SEQ_editing_get(scene);
if (ed == nullptr) {
return false;
}
Strip *recursive_seq = sequencer_check_scene_recursion(scene, &ed->seqbase);
if (recursive_seq != nullptr) {
BKE_reportf(reports,
RPT_WARNING,
"Recursion detected in video sequencer. Strip %s at frame %d will not be rendered",
recursive_seq->name + 2,
SEQ_time_left_handle_frame_get(scene, recursive_seq));
LISTBASE_FOREACH (Strip *, strip, &ed->seqbase) {
if (strip->type != STRIP_TYPE_SCENE && sequencer_seq_generates_image(strip)) {
/* There are other strips to render, so render them. */
return false;
}
}
/* No other strips to render - cancel operator. */
return true;
}
return false;
}
bool SEQ_relations_render_loop_check(Strip *strip_main, Strip *strip)
{
if (strip_main == nullptr || strip == nullptr) {
return false;
}
if (strip_main == strip) {
return true;
}
if ((strip_main->seq1 && SEQ_relations_render_loop_check(strip_main->seq1, strip)) ||
(strip_main->seq2 && SEQ_relations_render_loop_check(strip_main->seq2, strip)))
{
return true;
}
LISTBASE_FOREACH (SequenceModifierData *, smd, &strip_main->modifiers) {
if (smd->mask_sequence && SEQ_relations_render_loop_check(smd->mask_sequence, strip)) {
return true;
}
}
return false;
}
void SEQ_relations_sequence_free_anim(Strip *strip)
{
while (strip->anims.last) {
StripAnim *sanim = static_cast<StripAnim *>(strip->anims.last);
if (sanim->anim) {
MOV_close(sanim->anim);
sanim->anim = nullptr;
}
BLI_freelinkN(&strip->anims, sanim);
}
BLI_listbase_clear(&strip->anims);
}
void SEQ_relations_session_uid_generate(Strip *sequence)
{
sequence->runtime.session_uid = BLI_session_uid_generate();
}
static bool get_uids_cb(Strip *strip, void *user_data)
{
GSet *used_uids = (GSet *)user_data;
const SessionUID *session_uid = &strip->runtime.session_uid;
if (!BLI_session_uid_is_generated(session_uid)) {
printf("Sequence %s does not have UID generated.\n", strip->name);
return true;
}
if (BLI_gset_lookup(used_uids, session_uid) != nullptr) {
printf("Sequence %s has duplicate UID generated.\n", strip->name);
return true;
}
BLI_gset_insert(used_uids, (void *)session_uid);
return true;
}
void SEQ_relations_check_uids_unique_and_report(const Scene *scene)
{
if (scene->ed == nullptr) {
return;
}
GSet *used_uids = BLI_gset_new(
BLI_session_uid_ghash_hash, BLI_session_uid_ghash_compare, "sequencer used uids");
SEQ_for_each_callback(&scene->ed->seqbase, get_uids_cb, used_uids);
BLI_gset_free(used_uids, nullptr);
}
Strip *SEQ_find_metastrip_by_sequence(ListBase *seqbase, Strip *meta, Strip *strip)
{
LISTBASE_FOREACH (Strip *, iseq, seqbase) {
Strip *rval;
if (strip == iseq) {
return meta;
}
if (iseq->seqbase.first &&
(rval = SEQ_find_metastrip_by_sequence(&iseq->seqbase, iseq, strip)))
{
return rval;
}
}
return nullptr;
}
bool SEQ_exists_in_seqbase(const Strip *strip, const ListBase *seqbase)
{
LISTBASE_FOREACH (Strip *, strip_test, seqbase) {
if (strip_test->type == STRIP_TYPE_META && SEQ_exists_in_seqbase(strip, &strip_test->seqbase))
{
return true;
}
if (strip_test == strip) {
return true;
}
}
return false;
}
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