soundfont.c File Reference

#include <asm/uaccess.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <sound/core.h>
#include <sound/soundfont.h>
#include <sound/seq_oss_legacy.h>

Go to the source code of this file.

Macros
#define	OFFSET_MSEC   653117 /* base = 1000 */
#define	OFFSET_ABSCENT   851781 /* base = 8176 */
#define	OFFSET_SAMPLERATE   1011119 /* base = 44100 */
#define	ABSCENT_RATIO   1200
#define	TIMECENT_RATIO   1200
#define	SAMPLERATE_RATIO   4096
#define	calc_gus_sustain(val)   (0x7f - snd_sf_vol_table[(val)/2])
#define	calc_gus_attenuation(val)   snd_sf_vol_table[(val)/2]

Functions
int	snd_soundfont_close_check (struct snd_sf_list *sflist, int client)
int	snd_soundfont_load (struct snd_sf_list *sflist, const void __user *data, long count, int client)
int	snd_sf_linear_to_log (unsigned int amount, int offset, int ratio)
	EXPORT_SYMBOL (snd_sf_linear_to_log)
int	snd_sf_calc_parm_hold (int msec)
int	snd_sf_calc_parm_attack (int msec)
int	snd_sf_calc_parm_decay (int msec)
int	snd_soundfont_load_guspatch (struct snd_sf_list *sflist, const char __user *data, long count, int client)
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)
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)

Variables
int	snd_sf_vol_table [128]

Macro Definition Documentation

#define ABSCENT_RATIO   1200

Definition at line 824 of file soundfont.c.

#define calc_gus_attenuation

(

val

)

snd_sf_vol_table[(val)/2]

Definition at line 945 of file soundfont.c.

#define calc_gus_sustain

(

val

)

(0x7f - snd_sf_vol_table[(val)/2])

Definition at line 944 of file soundfont.c.

#define OFFSET_ABSCENT   851781 /* base = 8176 */

Definition at line 821 of file soundfont.c.

#define OFFSET_MSEC   653117 /* base = 1000 */

Definition at line 820 of file soundfont.c.

#define OFFSET_SAMPLERATE   1011119 /* base = 44100 */

Definition at line 822 of file soundfont.c.

#define SAMPLERATE_RATIO   4096

Definition at line 826 of file soundfont.c.

#define TIMECENT_RATIO   1200

Definition at line 825 of file soundfont.c.

Function Documentation

EXPORT_SYMBOL

(

snd_sf_linear_to_log

)

int snd_sf_calc_parm_attack

(

int

msec

)

Definition at line 920 of file soundfont.c.

int snd_sf_calc_parm_decay

(

int

msec

)

Definition at line 927 of file soundfont.c.

int snd_sf_calc_parm_hold

(

int

msec

)

Definition at line 895 of file soundfont.c.

void snd_sf_free

(

struct snd_sf_list *

sflist

)

Definition at line 1418 of file soundfont.c.

int snd_sf_linear_to_log	(	unsigned int	amount,
		int	offset,
		int	ratio
	)

Definition at line 798 of file soundfont.c.

struct snd_sf_list* snd_sf_new ( struct snd_sf_callback *  callback, struct snd_util_memhdr *  hdr  )

read

Definition at line 1395 of file soundfont.c.

int snd_soundfont_close_check	(	struct snd_sf_list *	sflist,
		int	client
	)

Definition at line 107 of file soundfont.c.

int snd_soundfont_load	(	struct snd_sf_list *	sflist,
		const void __user *	data,
		long	count,
		int	client
	)

Definition at line 129 of file soundfont.c.

int snd_soundfont_load_guspatch	(	struct snd_sf_list *	sflist,
		const char __user *	data,
		long	count,
		int	client
	)

Definition at line 1126 of file soundfont.c.

int snd_soundfont_remove_samples

(

struct snd_sf_list *

sflist

)

Definition at line 1437 of file soundfont.c.

int snd_soundfont_remove_unlocked

(

struct snd_sf_list *

sflist

)

Definition at line 1453 of file soundfont.c.

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
	)

Definition at line 1231 of file soundfont.c.

Variable Documentation

int snd_sf_vol_table[128]

Initial value:

= {
    255,111,95,86,79,74,70,66,63,61,58,56,54,52,50,49,
    47,46,45,43,42,41,40,39,38,37,36,35,34,34,33,32,
    31,31,30,29,29,28,27,27,26,26,25,24,24,23,23,22,
    22,21,21,21,20,20,19,19,18,18,18,17,17,16,16,16,
    15,15,15,14,14,14,13,13,13,12,12,12,11,11,11,10,
    10,10,10,9,9,9,8,8,8,8,7,7,7,7,6,6,
    6,6,5,5,5,5,5,4,4,4,4,3,3,3,3,3,
    2,2,2,2,2,1,1,1,1,1,0,0,0,0,0,0,
}

Definition at line 932 of file soundfont.c.