mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-12-02 08:52:12 +00:00
107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
/*
|
|
TiMidity++ -- MIDI to WAVE converter and player
|
|
Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
|
|
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
|
|
|
|
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef ___RECACHE_H_
|
|
#define ___RECACHE_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
namespace TimidityPlus
|
|
{
|
|
|
|
|
|
struct cache_hash
|
|
{
|
|
/* cache key */
|
|
int note;
|
|
Sample *sp;
|
|
|
|
int32_t cnt; /* counter */
|
|
double r; /* size/refcnt */
|
|
Sample *resampled;
|
|
struct cache_hash *next;
|
|
};
|
|
|
|
class Player;
|
|
|
|
class Recache
|
|
{
|
|
Player *player;
|
|
enum
|
|
{
|
|
HASH_TABLE_SIZE = 251,
|
|
MIXLEN = 256,
|
|
|
|
MIN_LOOPSTART = MIXLEN,
|
|
MIN_LOOPLEN = 1024,
|
|
MAX_EXPANDLEN = (1024 * 32),
|
|
|
|
CACHE_RESAMPLING_OK = 0,
|
|
CACHE_RESAMPLING_NOTOK = 1,
|
|
SORT_THRESHOLD = 20
|
|
};
|
|
|
|
struct CNote
|
|
{
|
|
int32_t on[128];
|
|
struct cache_hash *cache[128];
|
|
};
|
|
|
|
CNote channel_note_table[MAX_CHANNELS];
|
|
sample_t *cache_data;
|
|
splen_t cache_data_len;
|
|
struct cache_hash *cache_hash_table[HASH_TABLE_SIZE];
|
|
MBlockList hash_entry_pool;
|
|
|
|
|
|
void free_cache_data(void);
|
|
double sample_resamp_info(Sample *, int, splen_t *, splen_t *, splen_t *);
|
|
void qsort_cache_array(struct cache_hash **, int32_t, int32_t);
|
|
void insort_cache_array(struct cache_hash **, int32_t);
|
|
int cache_resampling(struct cache_hash *);
|
|
void loop_connect(sample_t *, int32_t, int32_t);
|
|
|
|
public:
|
|
|
|
Recache(Player *p)
|
|
{
|
|
memset(this, 0, sizeof(*this));
|
|
player = p;
|
|
resamp_cache_reset();
|
|
}
|
|
|
|
~Recache()
|
|
{
|
|
free_cache_data();
|
|
}
|
|
|
|
void resamp_cache_reset(void);
|
|
void resamp_cache_refer_on(Voice *vp, int32_t sample_start);
|
|
void resamp_cache_refer_off(int ch, int note, int32_t sample_end);
|
|
void resamp_cache_refer_alloff(int ch, int32_t sample_end);
|
|
void resamp_cache_create(void);
|
|
struct cache_hash *resamp_cache_fetch(Sample *sp, int note);
|
|
|
|
};
|
|
|
|
const int32_t allocate_cache_size = DEFAULT_CACHE_DATA_SIZE;
|
|
|
|
}
|
|
#endif /* ___RECACHE_H_ */
|