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blender-archive/source/blender/imbuf/IMB_moviecache.h

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remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2011 Blender Foundation.
* All rights reserved.
*
* Contributor(s): Blender Foundation,
* Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
unify include guard defines, __$FILENAME__ without the underscores these clogged up the namespace for autocompleation which was annoying.
2012-02-17 18:59:41 +00:00
#ifndef __IMB_MOVIECACHE_H__
#define __IMB_MOVIECACHE_H__
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
/** \file IMB_moviecache.h
* \ingroup imbuf
* \author Sergey Sharybin
*/
#include "BLI_utildefines.h"
#include "BLI_ghash.h"
code cleanup: spelling
2012-07-16 23:23:33 +00:00
/* Cache system for movie data - now supports storing ImBufs only
style cleanup: comment blocks
2012-03-09 18:28:30 +00:00
* Supposed to provide unified cache system for movie clips, sequencer and
* other movie-related areas */
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
struct ImBuf;
struct MovieCache;
typedef void (*MovieCacheGetKeyDataFP) (void *userkey, int *framenr, int *proxy, int *render_flags);
Improved cache management for movie clips from tomato branch Replace pseudo-LRU approach of determining which buffer to remove when running out of space allowed for cache with approach which would remove the frame which is most far away from newly added frame. This is still a bit tricky because it's impossible to distinguish which frame to delete in situation of: CCCC...CC ^ it's either user wants to extend left segment of cached frames and buffers from right segment should be removed or he wants to join this two segments and in that case buffers from right segment should be removed. Would need a bit more investigation which situation is more common in general usecase. Additional changes: - Cleanup some memutil files (which are familiar to cache limiter) - Add option to make moviecache verbose. If DEBUG_MESSAGES is defined in moviecache.c detailed logs would be printed to the console. - Movie caches are now named which helps reading debug messages.
2012-07-10 14:43:50 +00:00
typedef void *(*MovieCacheGetPriorityDataFP) (void *userkey);
typedef int (*MovieCacheGetItemPriorityFP) (void *last_userkey, void *priority_data);
typedef void (*MovieCachePriorityDeleterFP) (void *priority_data);
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
void IMB_moviecache_init(void);
void IMB_moviecache_destruct(void);
Improved cache management for movie clips from tomato branch Replace pseudo-LRU approach of determining which buffer to remove when running out of space allowed for cache with approach which would remove the frame which is most far away from newly added frame. This is still a bit tricky because it's impossible to distinguish which frame to delete in situation of: CCCC...CC ^ it's either user wants to extend left segment of cached frames and buffers from right segment should be removed or he wants to join this two segments and in that case buffers from right segment should be removed. Would need a bit more investigation which situation is more common in general usecase. Additional changes: - Cleanup some memutil files (which are familiar to cache limiter) - Add option to make moviecache verbose. If DEBUG_MESSAGES is defined in moviecache.c detailed logs would be printed to the console. - Movie caches are now named which helps reading debug messages.
2012-07-10 14:43:50 +00:00
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);
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
void IMB_moviecache_put(struct MovieCache *cache, void *userkey, struct ImBuf *ibuf);
Prefetching for movie clips This commit basically implements frames prefetching for movie clip datablock. Number of frames to be prefetched is controlled in User Preferences, System tab, Prefetch Frames option. Currently prefetching is destructive-less for movie cache, meaning mo frames will be removed from the cache when while prefetching. This is because it's half of simplier to implement, but it also makes sense from tracking point of view -- we could want to playback in both directions and removing frames from behind time cursor is not always a good idea. Anyway, smarter prefetching strategy could be developed later. Some implementation notes: - Added MEM_CacheLimiter_get_memory_in_use function to get memory usage of specified memory limiter. - Fixed prototype of MEM_CacheLimiter_get_maximum which was simply wrong (used wrong data type for output). - Added some utility functions to movie clip and movie cache for direct cache interaction and obtaining cache statistics. - Prefetching is implemented using general jobs system. which is invoking from clip draw function. - Prefetcing will stop as soon other job or playback starts. This is done from performance point of view. Jobs will likely require lots of CPU power and better to provide whole CPU to it. Playback is a bit more complicated case. For jpeg sequence playback prefetching while paying back is nice. But trying to prefetch heavy exr images and doing color space conversion slows down both playback and prefetching. TODO: - Think of better policy of dealing with already cached frames (like when cached frames from other clips prevents frames from current clip to be prefetched) - Currently a bit funky redraw notification happens from prefetch job. Perhaps own ND_ is better to have here. - Hiding clip while prefetch is active in theory shall stop prefetching job. - Having multiple clips opened on file load will prefetch frames for only one of them.
2013-03-20 17:03:20 +00:00
int IMB_moviecache_put_if_possible(struct MovieCache *cache, void *userkey, struct ImBuf *ibuf);
style cleanup
2012-08-23 07:10:48 +00:00
struct ImBuf *IMB_moviecache_get(struct MovieCache *cache, void *userkey);
Prefetching for movie clips This commit basically implements frames prefetching for movie clip datablock. Number of frames to be prefetched is controlled in User Preferences, System tab, Prefetch Frames option. Currently prefetching is destructive-less for movie cache, meaning mo frames will be removed from the cache when while prefetching. This is because it's half of simplier to implement, but it also makes sense from tracking point of view -- we could want to playback in both directions and removing frames from behind time cursor is not always a good idea. Anyway, smarter prefetching strategy could be developed later. Some implementation notes: - Added MEM_CacheLimiter_get_memory_in_use function to get memory usage of specified memory limiter. - Fixed prototype of MEM_CacheLimiter_get_maximum which was simply wrong (used wrong data type for output). - Added some utility functions to movie clip and movie cache for direct cache interaction and obtaining cache statistics. - Prefetching is implemented using general jobs system. which is invoking from clip draw function. - Prefetcing will stop as soon other job or playback starts. This is done from performance point of view. Jobs will likely require lots of CPU power and better to provide whole CPU to it. Playback is a bit more complicated case. For jpeg sequence playback prefetching while paying back is nice. But trying to prefetch heavy exr images and doing color space conversion slows down both playback and prefetching. TODO: - Think of better policy of dealing with already cached frames (like when cached frames from other clips prevents frames from current clip to be prefetched) - Currently a bit funky redraw notification happens from prefetch job. Perhaps own ND_ is better to have here. - Hiding clip while prefetch is active in theory shall stop prefetching job. - Having multiple clips opened on file load will prefetch frames for only one of them.
2013-03-20 17:03:20 +00:00
int IMB_moviecache_has_frame(struct MovieCache *cache, void *userkey);
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
void IMB_moviecache_free(struct MovieCache *cache);
Movie cache: add function to iterate through cache and remove items using custom check function for this. Currently unused, but would be helpful for sequencer cache.
2012-08-08 12:16:46 +00:00
void IMB_moviecache_cleanup(struct MovieCache *cache, int (cleanup_check_cb) (void *userkey, void *userdata), void *userdata);
remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n
2011-10-23 17:52:20 +00:00
void IMB_moviecache_get_cache_segments(struct MovieCache *cache, int proxy, int render_flags, int *totseg_r, int **points_r);
#endif
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