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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.
*
* Peter Schlaile <peter [at] schlaile [dot] de> 2010
*
* Contributor(s): Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/seqcache.c
* \ingroup bke
*/
#include <stddef.h>
#include "BLO_sys_types.h" /* for intptr_t */
#include "MEM_guardedalloc.h"
#include "DNA_sequence_types.h"
#include "BKE_sequencer.h"
#include "IMB_moviecache.h"
#include "IMB_imbuf_types.h"
typedef struct SeqCacheKey {
struct Sequence *seq;
SeqRenderData context;
float cfra;
seq_stripelem_ibuf_t type;
} SeqCacheKey;
static struct MovieCache *moviecache = NULL;
static int seq_cmp_render_data(const SeqRenderData *a, const SeqRenderData *b)
{
if (a->preview_render_size < b->preview_render_size) {
return -1;
}
if (a->preview_render_size > b->preview_render_size) {
return 1;
}
if (a->rectx < b->rectx) {
return -1;
}
if (a->rectx > b->rectx) {
return 1;
}
if (a->recty < b->recty) {
return -1;
}
if (a->recty > b->recty) {
return 1;
}
if (a->bmain < b->bmain) {
return -1;
}
if (a->bmain > b->bmain) {
return 1;
}
if (a->scene < b->scene) {
return -1;
}
if (a->scene > b->scene) {
return 1;
}
if (a->motion_blur_shutter < b->motion_blur_shutter) {
return -1;
}
if (a->motion_blur_shutter > b->motion_blur_shutter) {
return 1;
}
if (a->motion_blur_samples < b->motion_blur_samples) {
return -1;
}
if (a->motion_blur_samples > b->motion_blur_samples) {
return 1;
}
return 0;
}
static unsigned int seq_hash_render_data(const SeqRenderData *a)
{
unsigned int rval = a->rectx + a->recty;
rval ^= a->preview_render_size;
rval ^= ((intptr_t) a->bmain) << 6;
rval ^= ((intptr_t) a->scene) << 6;
rval ^= (int)(a->motion_blur_shutter * 100.0f) << 10;
rval ^= a->motion_blur_samples << 24;
return rval;
}
static unsigned int seqcache_hashhash(const void *key_)
{
const SeqCacheKey *key = (SeqCacheKey *) key_;
unsigned int rval = seq_hash_render_data(&key->context);
rval ^= *(unsigned int *) &key->cfra;
rval += key->type;
rval ^= ((intptr_t) key->seq) << 6;
return rval;
}
static int seqcache_hashcmp(const void *a_, const void *b_)
{
const SeqCacheKey *a = (SeqCacheKey *) a_;
const SeqCacheKey *b = (SeqCacheKey *) b_;
if (a->seq < b->seq) {
return -1;
}
if (a->seq > b->seq) {
return 1;
}
if (a->cfra < b->cfra) {
return -1;
}
if (a->cfra > b->cfra) {
return 1;
}
if (a->type < b->type) {
return -1;
}
if (a->type > b->type) {
return 1;
}
return seq_cmp_render_data(&a->context, &b->context);
}
void BKE_sequencer_cache_destruct(void)
{
if (moviecache)
IMB_moviecache_free(moviecache);
}
void BKE_sequencer_cache_cleanup(void)
{
if (moviecache) {
IMB_moviecache_free(moviecache);
moviecache = IMB_moviecache_create("seqcache", sizeof(SeqCacheKey), seqcache_hashhash, seqcache_hashcmp);
}
}
static int seqcache_key_check_seq(void *userkey, void *userdata)
{
SeqCacheKey *key = (SeqCacheKey *) userkey;
Sequence *seq = (Sequence *) userdata;
return key->seq == seq;
}
void BKE_sequencer_cache_cleanup_sequence(Sequence *seq)
{
if (moviecache)
IMB_moviecache_cleanup(moviecache, seqcache_key_check_seq, seq);
}
struct ImBuf *BKE_sequencer_cache_get(SeqRenderData context, Sequence *seq, float cfra, seq_stripelem_ibuf_t type)
{
if (moviecache && seq) {
SeqCacheKey key;
key.seq = seq;
key.context = context;
key.cfra = cfra - seq->start;
key.type = type;
return IMB_moviecache_get(moviecache, &key);
}
return NULL;
}
void BKE_sequencer_cache_put(SeqRenderData context, Sequence *seq, float cfra, seq_stripelem_ibuf_t type, ImBuf *i)
{
SeqCacheKey key;
if (!i) {
return;
}
if (!moviecache) {
moviecache = IMB_moviecache_create("seqcache", sizeof(SeqCacheKey), seqcache_hashhash, seqcache_hashcmp);
}
key.seq = seq;
key.context = context;
key.cfra = cfra - seq->start;
key.type = type;
IMB_moviecache_put(moviecache, &key, i);
}
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