ia64/linux-2.6.18-xen.hg

view sound/synth/emux/emux_nrpn.c @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
1 /*
2 * NRPN / SYSEX callbacks for Emu8k/Emu10k1
3 *
4 * Copyright (c) 1999-2000 Takashi Iwai <tiwai@suse.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
22 #include "emux_voice.h"
23 #include <sound/asoundef.h>
25 /*
26 * conversion from NRPN/control parameters to Emu8000 raw parameters
27 */
29 /* NRPN / CC -> Emu8000 parameter converter */
30 struct nrpn_conv_table {
31 int control;
32 int effect;
33 int (*convert)(int val);
34 };
36 /* effect sensitivity */
38 #define FX_CUTOFF 0
39 #define FX_RESONANCE 1
40 #define FX_ATTACK 2
41 #define FX_RELEASE 3
42 #define FX_VIBRATE 4
43 #define FX_VIBDEPTH 5
44 #define FX_VIBDELAY 6
45 #define FX_NUMS 7
47 /*
48 * convert NRPN/control values
49 */
51 static int send_converted_effect(struct nrpn_conv_table *table, int num_tables,
52 struct snd_emux_port *port,
53 struct snd_midi_channel *chan,
54 int type, int val, int mode)
55 {
56 int i, cval;
57 for (i = 0; i < num_tables; i++) {
58 if (table[i].control == type) {
59 cval = table[i].convert(val);
60 snd_emux_send_effect(port, chan, table[i].effect,
61 cval, mode);
62 return 1;
63 }
64 }
65 return 0;
66 }
68 #define DEF_FX_CUTOFF 170
69 #define DEF_FX_RESONANCE 6
70 #define DEF_FX_ATTACK 50
71 #define DEF_FX_RELEASE 50
72 #define DEF_FX_VIBRATE 30
73 #define DEF_FX_VIBDEPTH 4
74 #define DEF_FX_VIBDELAY 1500
76 /* effect sensitivities for GS NRPN:
77 * adjusted for chaos 8MB soundfonts
78 */
79 static int gs_sense[] =
80 {
81 DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
82 DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
83 };
85 /* effect sensitivies for XG controls:
86 * adjusted for chaos 8MB soundfonts
87 */
88 static int xg_sense[] =
89 {
90 DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
91 DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
92 };
95 /*
96 * AWE32 NRPN effects
97 */
99 static int fx_delay(int val);
100 static int fx_attack(int val);
101 static int fx_hold(int val);
102 static int fx_decay(int val);
103 static int fx_the_value(int val);
104 static int fx_twice_value(int val);
105 static int fx_conv_pitch(int val);
106 static int fx_conv_Q(int val);
108 /* function for each NRPN */ /* [range] units */
109 #define fx_env1_delay fx_delay /* [0,5900] 4msec */
110 #define fx_env1_attack fx_attack /* [0,5940] 1msec */
111 #define fx_env1_hold fx_hold /* [0,8191] 1msec */
112 #define fx_env1_decay fx_decay /* [0,5940] 4msec */
113 #define fx_env1_release fx_decay /* [0,5940] 4msec */
114 #define fx_env1_sustain fx_the_value /* [0,127] 0.75dB */
115 #define fx_env1_pitch fx_the_value /* [-127,127] 9.375cents */
116 #define fx_env1_cutoff fx_the_value /* [-127,127] 56.25cents */
118 #define fx_env2_delay fx_delay /* [0,5900] 4msec */
119 #define fx_env2_attack fx_attack /* [0,5940] 1msec */
120 #define fx_env2_hold fx_hold /* [0,8191] 1msec */
121 #define fx_env2_decay fx_decay /* [0,5940] 4msec */
122 #define fx_env2_release fx_decay /* [0,5940] 4msec */
123 #define fx_env2_sustain fx_the_value /* [0,127] 0.75dB */
125 #define fx_lfo1_delay fx_delay /* [0,5900] 4msec */
126 #define fx_lfo1_freq fx_twice_value /* [0,127] 84mHz */
127 #define fx_lfo1_volume fx_twice_value /* [0,127] 0.1875dB */
128 #define fx_lfo1_pitch fx_the_value /* [-127,127] 9.375cents */
129 #define fx_lfo1_cutoff fx_twice_value /* [-64,63] 56.25cents */
131 #define fx_lfo2_delay fx_delay /* [0,5900] 4msec */
132 #define fx_lfo2_freq fx_twice_value /* [0,127] 84mHz */
133 #define fx_lfo2_pitch fx_the_value /* [-127,127] 9.375cents */
135 #define fx_init_pitch fx_conv_pitch /* [-8192,8192] cents */
136 #define fx_chorus fx_the_value /* [0,255] -- */
137 #define fx_reverb fx_the_value /* [0,255] -- */
138 #define fx_cutoff fx_twice_value /* [0,127] 62Hz */
139 #define fx_filterQ fx_conv_Q /* [0,127] -- */
141 static int fx_delay(int val)
142 {
143 return (unsigned short)snd_sf_calc_parm_delay(val);
144 }
146 static int fx_attack(int val)
147 {
148 return (unsigned short)snd_sf_calc_parm_attack(val);
149 }
151 static int fx_hold(int val)
152 {
153 return (unsigned short)snd_sf_calc_parm_hold(val);
154 }
156 static int fx_decay(int val)
157 {
158 return (unsigned short)snd_sf_calc_parm_decay(val);
159 }
161 static int fx_the_value(int val)
162 {
163 return (unsigned short)(val & 0xff);
164 }
166 static int fx_twice_value(int val)
167 {
168 return (unsigned short)((val * 2) & 0xff);
169 }
171 static int fx_conv_pitch(int val)
172 {
173 return (short)(val * 4096 / 1200);
174 }
176 static int fx_conv_Q(int val)
177 {
178 return (unsigned short)((val / 8) & 0xff);
179 }
182 static struct nrpn_conv_table awe_effects[] =
183 {
184 { 0, EMUX_FX_LFO1_DELAY, fx_lfo1_delay},
185 { 1, EMUX_FX_LFO1_FREQ, fx_lfo1_freq},
186 { 2, EMUX_FX_LFO2_DELAY, fx_lfo2_delay},
187 { 3, EMUX_FX_LFO2_FREQ, fx_lfo2_freq},
189 { 4, EMUX_FX_ENV1_DELAY, fx_env1_delay},
190 { 5, EMUX_FX_ENV1_ATTACK,fx_env1_attack},
191 { 6, EMUX_FX_ENV1_HOLD, fx_env1_hold},
192 { 7, EMUX_FX_ENV1_DECAY, fx_env1_decay},
193 { 8, EMUX_FX_ENV1_SUSTAIN, fx_env1_sustain},
194 { 9, EMUX_FX_ENV1_RELEASE, fx_env1_release},
196 {10, EMUX_FX_ENV2_DELAY, fx_env2_delay},
197 {11, EMUX_FX_ENV2_ATTACK, fx_env2_attack},
198 {12, EMUX_FX_ENV2_HOLD, fx_env2_hold},
199 {13, EMUX_FX_ENV2_DECAY, fx_env2_decay},
200 {14, EMUX_FX_ENV2_SUSTAIN, fx_env2_sustain},
201 {15, EMUX_FX_ENV2_RELEASE, fx_env2_release},
203 {16, EMUX_FX_INIT_PITCH, fx_init_pitch},
204 {17, EMUX_FX_LFO1_PITCH, fx_lfo1_pitch},
205 {18, EMUX_FX_LFO2_PITCH, fx_lfo2_pitch},
206 {19, EMUX_FX_ENV1_PITCH, fx_env1_pitch},
207 {20, EMUX_FX_LFO1_VOLUME, fx_lfo1_volume},
208 {21, EMUX_FX_CUTOFF, fx_cutoff},
209 {22, EMUX_FX_FILTERQ, fx_filterQ},
210 {23, EMUX_FX_LFO1_CUTOFF, fx_lfo1_cutoff},
211 {24, EMUX_FX_ENV1_CUTOFF, fx_env1_cutoff},
212 {25, EMUX_FX_CHORUS, fx_chorus},
213 {26, EMUX_FX_REVERB, fx_reverb},
214 };
217 /*
218 * GS(SC88) NRPN effects; still experimental
219 */
221 /* cutoff: quarter semitone step, max=255 */
222 static int gs_cutoff(int val)
223 {
224 return (val - 64) * gs_sense[FX_CUTOFF] / 50;
225 }
227 /* resonance: 0 to 15(max) */
228 static int gs_filterQ(int val)
229 {
230 return (val - 64) * gs_sense[FX_RESONANCE] / 50;
231 }
233 /* attack: */
234 static int gs_attack(int val)
235 {
236 return -(val - 64) * gs_sense[FX_ATTACK] / 50;
237 }
239 /* decay: */
240 static int gs_decay(int val)
241 {
242 return -(val - 64) * gs_sense[FX_RELEASE] / 50;
243 }
245 /* release: */
246 static int gs_release(int val)
247 {
248 return -(val - 64) * gs_sense[FX_RELEASE] / 50;
249 }
251 /* vibrato freq: 0.042Hz step, max=255 */
252 static int gs_vib_rate(int val)
253 {
254 return (val - 64) * gs_sense[FX_VIBRATE] / 50;
255 }
257 /* vibrato depth: max=127, 1 octave */
258 static int gs_vib_depth(int val)
259 {
260 return (val - 64) * gs_sense[FX_VIBDEPTH] / 50;
261 }
263 /* vibrato delay: -0.725msec step */
264 static int gs_vib_delay(int val)
265 {
266 return -(val - 64) * gs_sense[FX_VIBDELAY] / 50;
267 }
269 static struct nrpn_conv_table gs_effects[] =
270 {
271 {32, EMUX_FX_CUTOFF, gs_cutoff},
272 {33, EMUX_FX_FILTERQ, gs_filterQ},
273 {99, EMUX_FX_ENV2_ATTACK, gs_attack},
274 {100, EMUX_FX_ENV2_DECAY, gs_decay},
275 {102, EMUX_FX_ENV2_RELEASE, gs_release},
276 {8, EMUX_FX_LFO1_FREQ, gs_vib_rate},
277 {9, EMUX_FX_LFO1_VOLUME, gs_vib_depth},
278 {10, EMUX_FX_LFO1_DELAY, gs_vib_delay},
279 };
282 /*
283 * NRPN events
284 */
285 void
286 snd_emux_nrpn(void *p, struct snd_midi_channel *chan,
287 struct snd_midi_channel_set *chset)
288 {
289 struct snd_emux_port *port;
291 port = p;
292 snd_assert(port != NULL, return);
293 snd_assert(chan != NULL, return);
295 if (chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 127 &&
296 chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB] <= 26) {
297 int val;
298 /* Win/DOS AWE32 specific NRPNs */
299 /* both MSB/LSB necessary */
300 val = (chan->control[MIDI_CTL_MSB_DATA_ENTRY] << 7) |
301 chan->control[MIDI_CTL_LSB_DATA_ENTRY];
302 val -= 8192;
303 send_converted_effect
304 (awe_effects, ARRAY_SIZE(awe_effects),
305 port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
306 val, EMUX_FX_FLAG_SET);
307 return;
308 }
310 if (port->chset.midi_mode == SNDRV_MIDI_MODE_GS &&
311 chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 1) {
312 int val;
313 /* GS specific NRPNs */
314 /* only MSB is valid */
315 val = chan->control[MIDI_CTL_MSB_DATA_ENTRY];
316 send_converted_effect
317 (gs_effects, ARRAY_SIZE(gs_effects),
318 port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
319 val, EMUX_FX_FLAG_ADD);
320 return;
321 }
322 }
325 /*
326 * XG control effects; still experimental
327 */
329 /* cutoff: quarter semitone step, max=255 */
330 static int xg_cutoff(int val)
331 {
332 return (val - 64) * xg_sense[FX_CUTOFF] / 64;
333 }
335 /* resonance: 0(open) to 15(most nasal) */
336 static int xg_filterQ(int val)
337 {
338 return (val - 64) * xg_sense[FX_RESONANCE] / 64;
339 }
341 /* attack: */
342 static int xg_attack(int val)
343 {
344 return -(val - 64) * xg_sense[FX_ATTACK] / 64;
345 }
347 /* release: */
348 static int xg_release(int val)
349 {
350 return -(val - 64) * xg_sense[FX_RELEASE] / 64;
351 }
353 static struct nrpn_conv_table xg_effects[] =
354 {
355 {71, EMUX_FX_CUTOFF, xg_cutoff},
356 {74, EMUX_FX_FILTERQ, xg_filterQ},
357 {72, EMUX_FX_ENV2_RELEASE, xg_release},
358 {73, EMUX_FX_ENV2_ATTACK, xg_attack},
359 };
361 int
362 snd_emux_xg_control(struct snd_emux_port *port, struct snd_midi_channel *chan,
363 int param)
364 {
365 return send_converted_effect(xg_effects, ARRAY_SIZE(xg_effects),
366 port, chan, param,
367 chan->control[param],
368 EMUX_FX_FLAG_ADD);
369 }
371 /*
372 * receive sysex
373 */
374 void
375 snd_emux_sysex(void *p, unsigned char *buf, int len, int parsed,
376 struct snd_midi_channel_set *chset)
377 {
378 struct snd_emux_port *port;
379 struct snd_emux *emu;
381 port = p;
382 snd_assert(port != NULL, return);
383 snd_assert(chset != NULL, return);
384 emu = port->emu;
386 switch (parsed) {
387 case SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME:
388 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
389 break;
390 default:
391 if (emu->ops.sysex)
392 emu->ops.sysex(emu, buf, len, parsed, chset);
393 break;
394 }
395 }