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108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
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/*
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TiMidity++ -- MIDI to WAVE converter and player
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Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
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Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef ___RECACHE_H_
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#define ___RECACHE_H_
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#include <stdint.h>
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namespace TimidityPlus
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{
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struct cache_hash
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{
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/* cache key */
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int note;
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Sample *sp;
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int32_t cnt; /* counter */
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double r; /* size/refcnt */
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Sample *resampled;
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struct cache_hash *next;
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};
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class Player;
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class Recache
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{
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Player *player;
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enum
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{
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HASH_TABLE_SIZE = 251,
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MIXLEN = 256,
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MIN_LOOPSTART = MIXLEN,
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MIN_LOOPLEN = 1024,
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MAX_EXPANDLEN = (1024 * 32),
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CACHE_RESAMPLING_OK = 0,
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CACHE_RESAMPLING_NOTOK = 1,
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SORT_THRESHOLD = 20
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};
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struct CNote
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{
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int32_t on[128];
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struct cache_hash *cache[128];
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};
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CNote channel_note_table[MAX_CHANNELS];
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sample_t *cache_data;
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splen_t cache_data_len;
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struct cache_hash *cache_hash_table[HASH_TABLE_SIZE];
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MBlockList hash_entry_pool;
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void free_cache_data(void);
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double sample_resamp_info(Sample *, int, splen_t *, splen_t *, splen_t *);
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void qsort_cache_array(struct cache_hash **, int32_t, int32_t);
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void insort_cache_array(struct cache_hash **, int32_t);
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int cache_resampling(struct cache_hash *);
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void loop_connect(sample_t *, int32_t, int32_t);
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public:
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Recache(Player *p)
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{
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memset(this, 0, sizeof(*this));
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player = p;
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resamp_cache_reset();
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}
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~Recache()
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{
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free_cache_data();
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}
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void resamp_cache_reset(void);
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void resamp_cache_refer_on(Voice *vp, int32_t sample_start);
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void resamp_cache_refer_off(int ch, int note, int32_t sample_end);
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void resamp_cache_refer_alloff(int ch, int32_t sample_end);
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void resamp_cache_create(void);
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struct cache_hash *resamp_cache_fetch(Sample *sp, int note);
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};
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const int32_t allocate_cache_size = DEFAULT_CACHE_DATA_SIZE;
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}
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#endif /* ___RECACHE_H_ */
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