IMB_moviecache.h

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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) 2011 Blender Foundation.
 * All rights reserved.
 */
 
#pragma once
 
#include "BLI_ghash.h"
#include "BLI_utildefines.h"
 
/* Cache system for movie data - now supports storing ImBufs only
 * Supposed to provide unified cache system for movie clips, sequencer and
 * other movie-related areas */
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct ImBuf;
struct MovieCache;
 
typedef void (*MovieCacheGetKeyDataFP)(void *userkey, int *framenr, int *proxy, int *render_flags);
 
typedef void *(*MovieCacheGetPriorityDataFP)(void *userkey);
typedef int (*MovieCacheGetItemPriorityFP)(void *last_userkey, void *priority_data);
typedef void (*MovieCachePriorityDeleterFP)(void *priority_data);
 
void IMB_moviecache_init(void);
void IMB_moviecache_destruct(void);
 
struct MovieCache *IMB_moviecache_create(const char *name,
                                         int keysize,
                                         GHashHashFP hashfp,
                                         GHashCmpFP cmpfp);
void IMB_moviecache_set_getdata_callback(struct MovieCache *cache,
                                         MovieCacheGetKeyDataFP getdatafp);
void IMB_moviecache_set_priority_callback(struct MovieCache *cache,
                                          MovieCacheGetPriorityDataFP getprioritydatafp,
                                          MovieCacheGetItemPriorityFP getitempriorityfp,
                                          MovieCachePriorityDeleterFP prioritydeleterfp);
 
void IMB_moviecache_put(struct MovieCache *cache, void *userkey, struct ImBuf *ibuf);
bool IMB_moviecache_put_if_possible(struct MovieCache *cache, void *userkey, struct ImBuf *ibuf);
struct ImBuf *IMB_moviecache_get(struct MovieCache *cache, void *userkey);
void IMB_moviecache_remove(struct MovieCache *cache, void *userkey);
bool IMB_moviecache_has_frame(struct MovieCache *cache, void *userkey);
void IMB_moviecache_free(struct MovieCache *cache);
 
void IMB_moviecache_cleanup(struct MovieCache *cache,
                            bool(cleanup_check_cb)(struct ImBuf *ibuf,
                                                   void *userkey,
                                                   void *userdata),
                            void *userdata);
 
void IMB_moviecache_get_cache_segments(
    struct MovieCache *cache, int proxy, int render_flags, int *r_totseg, int **r_points);
 
struct MovieCacheIter;
struct MovieCacheIter *IMB_moviecacheIter_new(struct MovieCache *cache);
void IMB_moviecacheIter_free(struct MovieCacheIter *iter);
bool IMB_moviecacheIter_done(struct MovieCacheIter *iter);
void IMB_moviecacheIter_step(struct MovieCacheIter *iter);
struct ImBuf *IMB_moviecacheIter_getImBuf(struct MovieCacheIter *iter);
void *IMB_moviecacheIter_getUserKey(struct MovieCacheIter *iter);
 
#ifdef __cplusplus
}
#endif