Peter Schlaile
5b1d669006
This patch adds prefetch buffering to the sequencer (see the tracker for additional details: https://projects.blender.org/tracker/?func=detail&aid=7307&group_id=9&atid=127 ) We create seperate render threads (currently one, because of the fact, that sequence rendering modifies global structures...), that render up to the defined userpref value "Prefetch frames" in advance. (Pressing Alt-A will _first_ fill the buffer and then start playing.) Bassam and I did some extensive testing, so it should work. If you don't configure your number of prefetch frames, prefetching is disabled! (Sane defaults... :) Also: if the machine is definitely too slow and runs out of the prefetch area, prefetching is disabled automatically and we are back to good old frame skipping mode. My Dual Athlon is able to handle 4 parallel DV streams at once (sometimes a little bit choppy, but prefetching is never disabled!) I fixed also a long standing bug in the audio code, that made playback run backwards at the beginning...
85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/**
|
|
* $Id$
|
|
*
|
|
* ***** BEGIN GPL/BL DUAL 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. The Blender
|
|
* Foundation also sells licenses for use in proprietary software under
|
|
* the Blender License. See http://www.blender.org/BL/ for information
|
|
* about this.
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* The Original Code is: all of this file.
|
|
*
|
|
* Contributor(s): none yet.
|
|
*
|
|
* ***** END GPL/BL DUAL LICENSE BLOCK *****
|
|
*
|
|
*/
|
|
|
|
#ifndef BSE_SEQUENCE_H
|
|
#define BSE_SEQUENCE_H
|
|
|
|
|
|
struct PluginSeq;
|
|
struct StripElem;
|
|
struct Strip;
|
|
struct Sequence;
|
|
struct ListBase;
|
|
struct Editing;
|
|
struct ImBuf;
|
|
struct Scene;
|
|
|
|
void free_stripdata(int len, struct StripElem *se);
|
|
void free_strip(struct Strip *strip);
|
|
void new_stripdata(struct Sequence *seq);
|
|
void free_sequence(struct Sequence *seq);
|
|
void build_seqar(struct ListBase *seqbase, struct Sequence ***seqar, int *totseq);
|
|
void free_editing(struct Editing *ed);
|
|
void calc_sequence(struct Sequence *seq);
|
|
void sort_seq(void);
|
|
void clear_scene_in_allseqs(struct Scene *sce);
|
|
|
|
int evaluate_seq_frame(int cfra);
|
|
struct StripElem *give_stripelem(struct Sequence *seq, int cfra);
|
|
void set_meta_stripdata(struct Sequence *seqm);
|
|
struct ImBuf *give_ibuf_seq(int rectx, int recty, int cfra, int chansel);
|
|
/* chansel: render this channel. Default=0 (renders end result)*/
|
|
|
|
/* sequence prefetch API */
|
|
void seq_start_threads();
|
|
void seq_stop_threads();
|
|
void give_ibuf_prefetch_request(int rectx, int recty, int cfra, int chanshown);
|
|
void seq_wait_for_prefetch_ready();
|
|
struct ImBuf * give_ibuf_threaded(int rectx, int recty, int cfra,
|
|
int chanshown);
|
|
|
|
|
|
void free_imbuf_seq_except(int cfra);
|
|
void free_imbuf_seq_with_ipo(struct Ipo * ipo);
|
|
void free_imbuf_seq(void);
|
|
|
|
void update_changed_seq_and_deps(struct Sequence *seq, int len_change, int ibuf_change);
|
|
|
|
/* still bad level call... */
|
|
struct RenderResult;
|
|
void do_render_seq(struct RenderResult *rr, int cfra);
|
|
|
|
|
|
#endif
|
|
|