Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 "sfnt_info.h" | |
26 | #include "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 | typedef 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 | soundfont_voice_info_t 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 | } snd_sf_zone_t; | |
46 | ||
47 | typedef struct snd_sf_sample { | |
48 | soundfont_sample_info_t v; | |
49 | int counter; | |
50 | snd_util_memblk_t *block; /* allocated data block */ | |
51 | struct snd_sf_sample *next; | |
52 | } snd_sf_sample_t; | |
53 | ||
54 | /* | |
55 | * This represents all the information relating to a soundfont. | |
56 | */ | |
57 | typedef 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 | snd_sf_zone_t *zones; /* Font information */ | |
64 | snd_sf_sample_t *samples; /* The sample headers */ | |
65 | } snd_soundfont_t; | |
66 | ||
67 | /* | |
68 | * Type of the sample access callback | |
69 | */ | |
70 | typedef int (*snd_sf_sample_new_t)(void *private_data, snd_sf_sample_t *sp, | |
71 | snd_util_memhdr_t *hdr, const void __user *buf, long count); | |
72 | typedef int (*snd_sf_sample_free_t)(void *private_data, snd_sf_sample_t *sp, | |
73 | snd_util_memhdr_t *hdr); | |
74 | typedef void (*snd_sf_sample_reset_t)(void *private); | |
75 | ||
76 | typedef struct snd_sf_callback { | |
77 | void *private_data; | |
78 | snd_sf_sample_new_t sample_new; | |
79 | snd_sf_sample_free_t sample_free; | |
80 | snd_sf_sample_reset_t sample_reset; | |
81 | } snd_sf_callback_t; | |
82 | ||
83 | /* | |
84 | * List of soundfonts. | |
85 | */ | |
86 | typedef struct snd_sf_list { | |
87 | snd_soundfont_t *currsf; /* The currently open soundfont */ | |
88 | int open_client; /* client pointer for lock */ | |
89 | int mem_used; /* used memory size */ | |
90 | snd_sf_zone_t *presets[SF_MAX_PRESETS]; | |
91 | snd_soundfont_t *fonts; /* The list of soundfonts */ | |
92 | int fonts_size; /* number of fonts allocated */ | |
93 | int zone_counter; /* last allocated time for zone */ | |
94 | int sample_counter; /* last allocated time for sample */ | |
95 | int zone_locked; /* locked time for zone */ | |
96 | int sample_locked; /* locked time for sample */ | |
97 | snd_sf_callback_t callback; /* callback functions */ | |
98 | int presets_locked; | |
99 | struct semaphore presets_mutex; | |
100 | spinlock_t lock; | |
101 | snd_util_memhdr_t *memhdr; | |
102 | } snd_sf_list_t; | |
103 | ||
104 | /* Prototypes for soundfont.c */ | |
105 | int snd_soundfont_load(snd_sf_list_t *sflist, const void __user *data, long count, int client); | |
106 | int snd_soundfont_load_guspatch(snd_sf_list_t *sflist, const char __user *data, | |
107 | long count, int client); | |
108 | int snd_soundfont_close_check(snd_sf_list_t *sflist, int client); | |
109 | ||
110 | snd_sf_list_t *snd_sf_new(snd_sf_callback_t *callback, snd_util_memhdr_t *hdr); | |
111 | void snd_sf_free(snd_sf_list_t *sflist); | |
112 | ||
113 | int snd_soundfont_remove_samples(snd_sf_list_t *sflist); | |
114 | int snd_soundfont_remove_unlocked(snd_sf_list_t *sflist); | |
115 | ||
116 | int snd_soundfont_search_zone(snd_sf_list_t *sflist, int *notep, int vel, | |
117 | int preset, int bank, | |
118 | int def_preset, int def_bank, | |
119 | snd_sf_zone_t **table, int max_layers); | |
120 | ||
121 | /* Parameter conversions */ | |
122 | int snd_sf_calc_parm_hold(int msec); | |
123 | int snd_sf_calc_parm_attack(int msec); | |
124 | int snd_sf_calc_parm_decay(int msec); | |
125 | #define snd_sf_calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725); | |
126 | extern int snd_sf_vol_table[128]; | |
127 | int snd_sf_linear_to_log(unsigned int amount, int offset, int ratio); | |
128 | ||
129 | ||
130 | #endif /* __SOUND_SOUNDFONT_H */ |