~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/synth/emux/emux_nrpn.c

Version: ~ [ linux-5.13-rc7 ] ~ [ linux-5.12.12 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.45 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.127 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.195 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.237 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.273 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.273 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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  */
 21 
 22 #include "emux_voice.h"
 23 #include <sound/asoundef.h>
 24 
 25 /*
 26  * conversion from NRPN/control parameters to Emu8000 raw parameters
 27  */
 28 
 29 /* NRPN / CC -> Emu8000 parameter converter */
 30 struct nrpn_conv_table {
 31         int control;
 32         int effect;
 33         int (*convert)(int val);
 34 };
 35 
 36 /* effect sensitivity */
 37 
 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
 46 
 47 /*
 48  * convert NRPN/control values
 49  */
 50 
 51 static int send_converted_effect(const struct nrpn_conv_table *table,
 52                                  int num_tables,
 53                                  struct snd_emux_port *port,
 54                                  struct snd_midi_channel *chan,
 55                                  int type, int val, int mode)
 56 {
 57         int i, cval;
 58         for (i = 0; i < num_tables; i++) {
 59                 if (table[i].control == type) {
 60                         cval = table[i].convert(val);
 61                         snd_emux_send_effect(port, chan, table[i].effect,
 62                                              cval, mode);
 63                         return 1;
 64                 }
 65         }
 66         return 0;
 67 }
 68 
 69 #define DEF_FX_CUTOFF           170
 70 #define DEF_FX_RESONANCE        6
 71 #define DEF_FX_ATTACK           50
 72 #define DEF_FX_RELEASE          50
 73 #define DEF_FX_VIBRATE          30
 74 #define DEF_FX_VIBDEPTH         4
 75 #define DEF_FX_VIBDELAY         1500
 76 
 77 /* effect sensitivities for GS NRPN:
 78  *  adjusted for chaos 8MB soundfonts
 79  */
 80 static int gs_sense[] = 
 81 {
 82         DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
 83         DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
 84 };
 85 
 86 /* effect sensitivies for XG controls:
 87  * adjusted for chaos 8MB soundfonts
 88  */
 89 static int xg_sense[] = 
 90 {
 91         DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
 92         DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
 93 };
 94 
 95 
 96 /*
 97  * AWE32 NRPN effects
 98  */
 99 
100 static int fx_delay(int val);
101 static int fx_attack(int val);
102 static int fx_hold(int val);
103 static int fx_decay(int val);
104 static int fx_the_value(int val);
105 static int fx_twice_value(int val);
106 static int fx_conv_pitch(int val);
107 static int fx_conv_Q(int val);
108 
109 /* function for each NRPN */            /* [range]  units */
110 #define fx_env1_delay   fx_delay        /* [0,5900] 4msec */
111 #define fx_env1_attack  fx_attack       /* [0,5940] 1msec */
112 #define fx_env1_hold    fx_hold         /* [0,8191] 1msec */
113 #define fx_env1_decay   fx_decay        /* [0,5940] 4msec */
114 #define fx_env1_release fx_decay        /* [0,5940] 4msec */
115 #define fx_env1_sustain fx_the_value    /* [0,127] 0.75dB */
116 #define fx_env1_pitch   fx_the_value    /* [-127,127] 9.375cents */
117 #define fx_env1_cutoff  fx_the_value    /* [-127,127] 56.25cents */
118 
119 #define fx_env2_delay   fx_delay        /* [0,5900] 4msec */
120 #define fx_env2_attack  fx_attack       /* [0,5940] 1msec */
121 #define fx_env2_hold    fx_hold         /* [0,8191] 1msec */
122 #define fx_env2_decay   fx_decay        /* [0,5940] 4msec */
123 #define fx_env2_release fx_decay        /* [0,5940] 4msec */
124 #define fx_env2_sustain fx_the_value    /* [0,127] 0.75dB */
125 
126 #define fx_lfo1_delay   fx_delay        /* [0,5900] 4msec */
127 #define fx_lfo1_freq    fx_twice_value  /* [0,127] 84mHz */
128 #define fx_lfo1_volume  fx_twice_value  /* [0,127] 0.1875dB */
129 #define fx_lfo1_pitch   fx_the_value    /* [-127,127] 9.375cents */
130 #define fx_lfo1_cutoff  fx_twice_value  /* [-64,63] 56.25cents */
131 
132 #define fx_lfo2_delay   fx_delay        /* [0,5900] 4msec */
133 #define fx_lfo2_freq    fx_twice_value  /* [0,127] 84mHz */
134 #define fx_lfo2_pitch   fx_the_value    /* [-127,127] 9.375cents */
135 
136 #define fx_init_pitch   fx_conv_pitch   /* [-8192,8192] cents */
137 #define fx_chorus       fx_the_value    /* [0,255] -- */
138 #define fx_reverb       fx_the_value    /* [0,255] -- */
139 #define fx_cutoff       fx_twice_value  /* [0,127] 62Hz */
140 #define fx_filterQ      fx_conv_Q       /* [0,127] -- */
141 
142 static int fx_delay(int val)
143 {
144         return (unsigned short)snd_sf_calc_parm_delay(val);
145 }
146 
147 static int fx_attack(int val)
148 {
149         return (unsigned short)snd_sf_calc_parm_attack(val);
150 }
151 
152 static int fx_hold(int val)
153 {
154         return (unsigned short)snd_sf_calc_parm_hold(val);
155 }
156 
157 static int fx_decay(int val)
158 {
159         return (unsigned short)snd_sf_calc_parm_decay(val);
160 }
161 
162 static int fx_the_value(int val)
163 {
164         return (unsigned short)(val & 0xff);
165 }
166 
167 static int fx_twice_value(int val)
168 {
169         return (unsigned short)((val * 2) & 0xff);
170 }
171 
172 static int fx_conv_pitch(int val)
173 {
174         return (short)(val * 4096 / 1200);
175 }
176 
177 static int fx_conv_Q(int val)
178 {
179         return (unsigned short)((val / 8) & 0xff);
180 }
181 
182 
183 static const struct nrpn_conv_table awe_effects[] =
184 {
185         { 0, EMUX_FX_LFO1_DELAY,        fx_lfo1_delay},
186         { 1, EMUX_FX_LFO1_FREQ, fx_lfo1_freq},
187         { 2, EMUX_FX_LFO2_DELAY,        fx_lfo2_delay},
188         { 3, EMUX_FX_LFO2_FREQ, fx_lfo2_freq},
189 
190         { 4, EMUX_FX_ENV1_DELAY,        fx_env1_delay},
191         { 5, EMUX_FX_ENV1_ATTACK,fx_env1_attack},
192         { 6, EMUX_FX_ENV1_HOLD, fx_env1_hold},
193         { 7, EMUX_FX_ENV1_DECAY,        fx_env1_decay},
194         { 8, EMUX_FX_ENV1_SUSTAIN,      fx_env1_sustain},
195         { 9, EMUX_FX_ENV1_RELEASE,      fx_env1_release},
196 
197         {10, EMUX_FX_ENV2_DELAY,        fx_env2_delay},
198         {11, EMUX_FX_ENV2_ATTACK,       fx_env2_attack},
199         {12, EMUX_FX_ENV2_HOLD, fx_env2_hold},
200         {13, EMUX_FX_ENV2_DECAY,        fx_env2_decay},
201         {14, EMUX_FX_ENV2_SUSTAIN,      fx_env2_sustain},
202         {15, EMUX_FX_ENV2_RELEASE,      fx_env2_release},
203 
204         {16, EMUX_FX_INIT_PITCH,        fx_init_pitch},
205         {17, EMUX_FX_LFO1_PITCH,        fx_lfo1_pitch},
206         {18, EMUX_FX_LFO2_PITCH,        fx_lfo2_pitch},
207         {19, EMUX_FX_ENV1_PITCH,        fx_env1_pitch},
208         {20, EMUX_FX_LFO1_VOLUME,       fx_lfo1_volume},
209         {21, EMUX_FX_CUTOFF,            fx_cutoff},
210         {22, EMUX_FX_FILTERQ,   fx_filterQ},
211         {23, EMUX_FX_LFO1_CUTOFF,       fx_lfo1_cutoff},
212         {24, EMUX_FX_ENV1_CUTOFF,       fx_env1_cutoff},
213         {25, EMUX_FX_CHORUS,            fx_chorus},
214         {26, EMUX_FX_REVERB,            fx_reverb},
215 };
216 
217 
218 /*
219  * GS(SC88) NRPN effects; still experimental
220  */
221 
222 /* cutoff: quarter semitone step, max=255 */
223 static int gs_cutoff(int val)
224 {
225         return (val - 64) * gs_sense[FX_CUTOFF] / 50;
226 }
227 
228 /* resonance: 0 to 15(max) */
229 static int gs_filterQ(int val)
230 {
231         return (val - 64) * gs_sense[FX_RESONANCE] / 50;
232 }
233 
234 /* attack: */
235 static int gs_attack(int val)
236 {
237         return -(val - 64) * gs_sense[FX_ATTACK] / 50;
238 }
239 
240 /* decay: */
241 static int gs_decay(int val)
242 {
243         return -(val - 64) * gs_sense[FX_RELEASE] / 50;
244 }
245 
246 /* release: */
247 static int gs_release(int val)
248 {
249         return -(val - 64) * gs_sense[FX_RELEASE] / 50;
250 }
251 
252 /* vibrato freq: 0.042Hz step, max=255 */
253 static int gs_vib_rate(int val)
254 {
255         return (val - 64) * gs_sense[FX_VIBRATE] / 50;
256 }
257 
258 /* vibrato depth: max=127, 1 octave */
259 static int gs_vib_depth(int val)
260 {
261         return (val - 64) * gs_sense[FX_VIBDEPTH] / 50;
262 }
263 
264 /* vibrato delay: -0.725msec step */
265 static int gs_vib_delay(int val)
266 {
267         return -(val - 64) * gs_sense[FX_VIBDELAY] / 50;
268 }
269 
270 static const struct nrpn_conv_table gs_effects[] =
271 {
272         {32, EMUX_FX_CUTOFF,    gs_cutoff},
273         {33, EMUX_FX_FILTERQ,   gs_filterQ},
274         {99, EMUX_FX_ENV2_ATTACK, gs_attack},
275         {100, EMUX_FX_ENV2_DECAY, gs_decay},
276         {102, EMUX_FX_ENV2_RELEASE, gs_release},
277         {8, EMUX_FX_LFO1_FREQ, gs_vib_rate},
278         {9, EMUX_FX_LFO1_VOLUME, gs_vib_depth},
279         {10, EMUX_FX_LFO1_DELAY, gs_vib_delay},
280 };
281 
282 
283 /*
284  * NRPN events
285  */
286 void
287 snd_emux_nrpn(void *p, struct snd_midi_channel *chan,
288               struct snd_midi_channel_set *chset)
289 {
290         struct snd_emux_port *port;
291 
292         port = p;
293         if (snd_BUG_ON(!port || !chan))
294                 return;
295 
296         if (chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 127 &&
297             chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB] <= 26) {
298                 int val;
299                 /* Win/DOS AWE32 specific NRPNs */
300                 /* both MSB/LSB necessary */
301                 val = (chan->control[MIDI_CTL_MSB_DATA_ENTRY] << 7) |
302                         chan->control[MIDI_CTL_LSB_DATA_ENTRY]; 
303                 val -= 8192;
304                 send_converted_effect
305                         (awe_effects, ARRAY_SIZE(awe_effects),
306                          port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
307                          val, EMUX_FX_FLAG_SET);
308                 return;
309         }
310 
311         if (port->chset.midi_mode == SNDRV_MIDI_MODE_GS &&
312             chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 1) {
313                 int val;
314                 /* GS specific NRPNs */
315                 /* only MSB is valid */
316                 val = chan->control[MIDI_CTL_MSB_DATA_ENTRY];
317                 send_converted_effect
318                         (gs_effects, ARRAY_SIZE(gs_effects),
319                          port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
320                          val, EMUX_FX_FLAG_ADD);
321                 return;
322         }
323 }
324 
325 
326 /*
327  * XG control effects; still experimental
328  */
329 
330 /* cutoff: quarter semitone step, max=255 */
331 static int xg_cutoff(int val)
332 {
333         return (val - 64) * xg_sense[FX_CUTOFF] / 64;
334 }
335 
336 /* resonance: 0(open) to 15(most nasal) */
337 static int xg_filterQ(int val)
338 {
339         return (val - 64) * xg_sense[FX_RESONANCE] / 64;
340 }
341 
342 /* attack: */
343 static int xg_attack(int val)
344 {
345         return -(val - 64) * xg_sense[FX_ATTACK] / 64;
346 }
347 
348 /* release: */
349 static int xg_release(int val)
350 {
351         return -(val - 64) * xg_sense[FX_RELEASE] / 64;
352 }
353 
354 static const struct nrpn_conv_table xg_effects[] =
355 {
356         {71, EMUX_FX_CUTOFF,    xg_cutoff},
357         {74, EMUX_FX_FILTERQ,   xg_filterQ},
358         {72, EMUX_FX_ENV2_RELEASE, xg_release},
359         {73, EMUX_FX_ENV2_ATTACK, xg_attack},
360 };
361 
362 int
363 snd_emux_xg_control(struct snd_emux_port *port, struct snd_midi_channel *chan,
364                     int param)
365 {
366         return send_converted_effect(xg_effects, ARRAY_SIZE(xg_effects),
367                                      port, chan, param,
368                                      chan->control[param],
369                                      EMUX_FX_FLAG_ADD);
370 }
371 
372 /*
373  * receive sysex
374  */
375 void
376 snd_emux_sysex(void *p, unsigned char *buf, int len, int parsed,
377                struct snd_midi_channel_set *chset)
378 {
379         struct snd_emux_port *port;
380         struct snd_emux *emu;
381 
382         port = p;
383         if (snd_BUG_ON(!port || !chset))
384                 return;
385         emu = port->emu;
386 
387         switch (parsed) {
388         case SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME:
389                 snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
390                 break;
391         default:
392                 if (emu->ops.sysex)
393                         emu->ops.sysex(emu, buf, len, parsed, chset);
394                 break;
395         }
396 }
397 
398 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp