[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / sound / soundfont.h

#ifndef __SOUND_SOUNDFONT_H
#define __SOUND_SOUNDFONT_H

/*
 *  Soundfont defines and definitions.
 *
 *  Copyright (C) 1999 Steve Ratcliffe
 *  Copyright (c) 1999-2000 Takashi iwai <tiwai@suse.de>
 *
 *   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
 */

#include <sound/sfnt_info.h>
#include <sound/util_mem.h>

#define SF_MAX_INSTRUMENTS	128	/* maximum instrument number */
#define SF_MAX_PRESETS  256	/* drums are mapped from 128 to 256 */
#define SF_IS_DRUM_BANK(z) ((z) == 128)

struct snd_sf_zone {
	struct snd_sf_zone *next;	/* Link to next */
	unsigned char bank;		/* Midi bank for this zone */
	unsigned char instr;		/* Midi program for this zone */
	unsigned char mapped;		/* True if mapped to something else */

	struct soundfont_voice_info v;	/* All the soundfont parameters */
	int counter;
	struct snd_sf_sample *sample;	/* Link to sample */

	/* The following deals with preset numbers (programs) */
	struct snd_sf_zone *next_instr;	/* Next zone of this instrument */
	struct snd_sf_zone *next_zone;	/* Next zone in play list */
};

struct snd_sf_sample {
	struct soundfont_sample_info v;
	int counter;
	struct snd_util_memblk *block;	/* allocated data block */
	struct snd_sf_sample *next;
};

/*
 * This represents all the information relating to a soundfont.
 */
struct snd_soundfont {
	struct snd_soundfont *next;	/* Link to next */
	/*struct snd_soundfont *prev;*/	/* Link to previous */
	short  id;		/* file id */
	short  type;		/* font type */
	unsigned char name[SNDRV_SFNT_PATCH_NAME_LEN];	/* identifier */
	struct snd_sf_zone *zones; /* Font information */
	struct snd_sf_sample *samples; /* The sample headers */
};

/*
 * Type of the sample access callback
 */
struct snd_sf_callback {
	void *private_data;
	int (*sample_new)(void *private_data, struct snd_sf_sample *sp,
			  struct snd_util_memhdr *hdr,
			  const void __user *buf, long count);
	int (*sample_free)(void *private_data, struct snd_sf_sample *sp,
			   struct snd_util_memhdr *hdr);
	void (*sample_reset)(void *private);
};

/*
 * List of soundfonts.
 */
struct snd_sf_list {
	struct snd_soundfont *currsf; /* The currently open soundfont */
	int open_client;	/* client pointer for lock */
	int mem_used;		/* used memory size */
	struct snd_sf_zone *presets[SF_MAX_PRESETS];
	struct snd_soundfont *fonts; /* The list of soundfonts */
	int fonts_size;	/* number of fonts allocated */
	int zone_counter;	/* last allocated time for zone */
	int sample_counter;	/* last allocated time for sample */
	int zone_locked;	/* locked time for zone */
	int sample_locked;	/* locked time for sample */
	struct snd_sf_callback callback;	/* callback functions */
	int presets_locked;
	struct mutex presets_mutex;
	spinlock_t lock;
	struct snd_util_memhdr *memhdr;
};

/* Prototypes for soundfont.c */
int snd_soundfont_load(struct snd_sf_list *sflist, const void __user *data,
		       long count, int client);
int snd_soundfont_load_guspatch(struct snd_sf_list *sflist, const char __user *data,
				long count, int client);
int snd_soundfont_close_check(struct snd_sf_list *sflist, int client);

struct snd_sf_list *snd_sf_new(struct snd_sf_callback *callback,
			       struct snd_util_memhdr *hdr);
void snd_sf_free(struct snd_sf_list *sflist);

int snd_soundfont_remove_samples(struct snd_sf_list *sflist);
int snd_soundfont_remove_unlocked(struct snd_sf_list *sflist);

int snd_soundfont_search_zone(struct snd_sf_list *sflist, int *notep, int vel,
			      int preset, int bank,
			      int def_preset, int def_bank,
			      struct snd_sf_zone **table, int max_layers);

/* Parameter conversions */
int snd_sf_calc_parm_hold(int msec);
int snd_sf_calc_parm_attack(int msec);
int snd_sf_calc_parm_decay(int msec);
#define snd_sf_calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725)
extern int snd_sf_vol_table[128];
int snd_sf_linear_to_log(unsigned int amount, int offset, int ratio);


#endif /* __SOUND_SOUNDFONT_H */
Commit	Line	Data
	1	#ifndef __SOUND_SOUNDFONT_H
	2	#define __SOUND_SOUNDFONT_H
	3
	4	/*
	5	* Soundfont defines and definitions.
	6	*
	7	* Copyright (C) 1999 Steve Ratcliffe
	8	* Copyright (c) 1999-2000 Takashi iwai <tiwai@suse.de>
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*/
	24
	25	#include <sound/sfnt_info.h>
	26	#include <sound/util_mem.h>
	27
	28	#define SF_MAX_INSTRUMENTS 128 /* maximum instrument number */
	29	#define SF_MAX_PRESETS 256 /* drums are mapped from 128 to 256 */
	30	#define SF_IS_DRUM_BANK(z) ((z) == 128)
	31
	32	struct snd_sf_zone {
	33	struct snd_sf_zone next; / Link to next */
	34	unsigned char bank; /* Midi bank for this zone */
	35	unsigned char instr; /* Midi program for this zone */
	36	unsigned char mapped; /* True if mapped to something else */
	37
	38	struct soundfont_voice_info v; /* All the soundfont parameters */
	39	int counter;
	40	struct snd_sf_sample sample; / Link to sample */
	41
	42	/* The following deals with preset numbers (programs) */
	43	struct snd_sf_zone next_instr; / Next zone of this instrument */
	44	struct snd_sf_zone next_zone; / Next zone in play list */
	45	};
	46
	47	struct snd_sf_sample {
	48	struct soundfont_sample_info v;
	49	int counter;
	50	struct snd_util_memblk block; / allocated data block */
	51	struct snd_sf_sample *next;
	52	};
	53
	54	/*
	55	* This represents all the information relating to a soundfont.
	56	*/
	57	struct snd_soundfont {
	58	struct snd_soundfont next; / Link to next */
	59	/struct snd_soundfont prev;/ / Link to previous */
	60	short id; /* file id */
	61	short type; /* font type */
	62	unsigned char name[SNDRV_SFNT_PATCH_NAME_LEN]; /* identifier */
	63	struct snd_sf_zone zones; / Font information */
	64	struct snd_sf_sample samples; / The sample headers */
	65	};
	66
	67	/*
	68	* Type of the sample access callback
	69	*/
	70	struct snd_sf_callback {
	71	void *private_data;
	72	int (sample_new)(void private_data, struct snd_sf_sample *sp,
	73	struct snd_util_memhdr *hdr,
	74	const void __user *buf, long count);
	75	int (sample_free)(void private_data, struct snd_sf_sample *sp,
	76	struct snd_util_memhdr *hdr);
	77	void (sample_reset)(void private);
	78	};
	79
	80	/*
	81	* List of soundfonts.
	82	*/
	83	struct snd_sf_list {
	84	struct snd_soundfont currsf; / The currently open soundfont */
	85	int open_client; /* client pointer for lock */
	86	int mem_used; /* used memory size */
	87	struct snd_sf_zone *presets[SF_MAX_PRESETS];
	88	struct snd_soundfont fonts; / The list of soundfonts */
	89	int fonts_size; /* number of fonts allocated */
	90	int zone_counter; /* last allocated time for zone */
	91	int sample_counter; /* last allocated time for sample */
	92	int zone_locked; /* locked time for zone */
	93	int sample_locked; /* locked time for sample */
	94	struct snd_sf_callback callback; /* callback functions */
	95	int presets_locked;
	96	struct mutex presets_mutex;
	97	spinlock_t lock;
	98	struct snd_util_memhdr *memhdr;
	99	};
	100
	101	/* Prototypes for soundfont.c */
	102	int snd_soundfont_load(struct snd_sf_list sflist, const void __user data,
	103	long count, int client);
	104	int snd_soundfont_load_guspatch(struct snd_sf_list sflist, const char __user data,
	105	long count, int client);
	106	int snd_soundfont_close_check(struct snd_sf_list *sflist, int client);
	107
	108	struct snd_sf_list snd_sf_new(struct snd_sf_callback callback,
	109	struct snd_util_memhdr *hdr);
	110	void snd_sf_free(struct snd_sf_list *sflist);
	111
	112	int snd_soundfont_remove_samples(struct snd_sf_list *sflist);
	113	int snd_soundfont_remove_unlocked(struct snd_sf_list *sflist);
	114
	115	int snd_soundfont_search_zone(struct snd_sf_list sflist, int notep, int vel,
	116	int preset, int bank,
	117	int def_preset, int def_bank,
	118	struct snd_sf_zone **table, int max_layers);
	119
	120	/* Parameter conversions */
	121	int snd_sf_calc_parm_hold(int msec);
	122	int snd_sf_calc_parm_attack(int msec);
	123	int snd_sf_calc_parm_decay(int msec);
	124	#define snd_sf_calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725)
	125	extern int snd_sf_vol_table[128];
	126	int snd_sf_linear_to_log(unsigned int amount, int offset, int ratio);
	127
	128
	129	#endif /* __SOUND_SOUNDFONT_H */