Release 4.8 sound/synth/emux/emux_nrpn.c

Directory: sound/synth/emux
/*
 *  NRPN / SYSEX callbacks for Emu8k/Emu10k1
 *
 *  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 "emux_voice.h"
#include <sound/asoundef.h>

/*
 * conversion from NRPN/control parameters to Emu8000 raw parameters
 */

/* NRPN / CC -> Emu8000 parameter converter */

struct nrpn_conv_table {
	
int control;
	
int effect;
	
int (*convert)(int val);
};

/* effect sensitivity */


#define FX_CUTOFF	0

#define FX_RESONANCE	1

#define FX_ATTACK	2

#define FX_RELEASE	3

#define FX_VIBRATE	4

#define FX_VIBDEPTH	5

#define FX_VIBDELAY	6

#define FX_NUMS		7

/*
 * convert NRPN/control values
 */



static int send_converted_effect(const struct nrpn_conv_table *table,
				 int num_tables,
				 struct snd_emux_port *port,
				 struct snd_midi_channel *chan,
				 int type, int val, int mode)
{
	int i, cval;
	for (i = 0; i < num_tables; i++) {
		if (table[i].control == type) {
			cval = table[i].convert(val);
			snd_emux_send_effect(port, chan, table[i].effect,
					     cval, mode);
			return 1;
		}
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 97 94.17% 1 33.33%
takashi iwai takashi iwai 5 4.85% 1 33.33%
julia lawall julia lawall 1 0.97% 1 33.33%
Total 103 100.00% 3 100.00%


#define DEF_FX_CUTOFF		170

#define DEF_FX_RESONANCE	6

#define DEF_FX_ATTACK		50

#define DEF_FX_RELEASE		50

#define DEF_FX_VIBRATE		30

#define DEF_FX_VIBDEPTH		4

#define DEF_FX_VIBDELAY		1500

/* effect sensitivities for GS NRPN:
 *  adjusted for chaos 8MB soundfonts
 */

static int gs_sense[] = 
{
	DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
	DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
};

/* effect sensitivies for XG controls:
 * adjusted for chaos 8MB soundfonts
 */

static int xg_sense[] = 
{
	DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
	DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
};


/*
 * AWE32 NRPN effects
 */

static int fx_delay(int val);
static int fx_attack(int val);
static int fx_hold(int val);
static int fx_decay(int val);
static int fx_the_value(int val);
static int fx_twice_value(int val);
static int fx_conv_pitch(int val);
static int fx_conv_Q(int val);

/* function for each NRPN */		/* [range]  units */

#define fx_env1_delay	fx_delay	
/* [0,5900] 4msec */

#define fx_env1_attack	fx_attack	
/* [0,5940] 1msec */

#define fx_env1_hold	fx_hold		
/* [0,8191] 1msec */

#define fx_env1_decay	fx_decay	
/* [0,5940] 4msec */

#define fx_env1_release	fx_decay	
/* [0,5940] 4msec */

#define fx_env1_sustain	fx_the_value	
/* [0,127] 0.75dB */

#define fx_env1_pitch	fx_the_value	
/* [-127,127] 9.375cents */

#define fx_env1_cutoff	fx_the_value	
/* [-127,127] 56.25cents */


#define fx_env2_delay	fx_delay	
/* [0,5900] 4msec */

#define fx_env2_attack	fx_attack	
/* [0,5940] 1msec */

#define fx_env2_hold	fx_hold		
/* [0,8191] 1msec */

#define fx_env2_decay	fx_decay	
/* [0,5940] 4msec */

#define fx_env2_release	fx_decay	
/* [0,5940] 4msec */

#define fx_env2_sustain	fx_the_value	
/* [0,127] 0.75dB */


#define fx_lfo1_delay	fx_delay	
/* [0,5900] 4msec */

#define fx_lfo1_freq	fx_twice_value	
/* [0,127] 84mHz */

#define fx_lfo1_volume	fx_twice_value	
/* [0,127] 0.1875dB */

#define fx_lfo1_pitch	fx_the_value	
/* [-127,127] 9.375cents */

#define fx_lfo1_cutoff	fx_twice_value	
/* [-64,63] 56.25cents */


#define fx_lfo2_delay	fx_delay	
/* [0,5900] 4msec */

#define fx_lfo2_freq	fx_twice_value	
/* [0,127] 84mHz */

#define fx_lfo2_pitch	fx_the_value	
/* [-127,127] 9.375cents */


#define fx_init_pitch	fx_conv_pitch	
/* [-8192,8192] cents */

#define fx_chorus	fx_the_value	
/* [0,255] -- */

#define fx_reverb	fx_the_value	
/* [0,255] -- */

#define fx_cutoff	fx_twice_value	
/* [0,127] 62Hz */

#define fx_filterQ	fx_conv_Q	
/* [0,127] -- */



static int fx_delay(int val)
{
	return (unsigned short)snd_sf_calc_parm_delay(val);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 19 100.00% 1 100.00%
Total 19 100.00% 1 100.00%



static int fx_attack(int val)
{
	return (unsigned short)snd_sf_calc_parm_attack(val);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 19 100.00% 1 100.00%
Total 19 100.00% 1 100.00%



static int fx_hold(int val)
{
	return (unsigned short)snd_sf_calc_parm_hold(val);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 19 100.00% 1 100.00%
Total 19 100.00% 1 100.00%



static int fx_decay(int val)
{
	return (unsigned short)snd_sf_calc_parm_decay(val);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 19 100.00% 1 100.00%
Total 19 100.00% 1 100.00%



static int fx_the_value(int val)
{
	return (unsigned short)(val & 0xff);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 20 100.00% 1 100.00%
Total 20 100.00% 1 100.00%



static int fx_twice_value(int val)
{
	return (unsigned short)((val * 2) & 0xff);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%



static int fx_conv_pitch(int val)
{
	return (short)(val * 4096 / 1200);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 21 100.00% 1 100.00%
Total 21 100.00% 1 100.00%



static int fx_conv_Q(int val)
{
	return (unsigned short)((val / 8) & 0xff);
}


Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%


static const struct nrpn_conv_table awe_effects[] =
{
	{ 0, EMUX_FX_LFO1_DELAY,	fx_lfo1_delay},
	{ 1, EMUX_FX_LFO1_FREQ,	fx_lfo1_freq},
	{ 2, EMUX_FX_LFO2_DELAY,	fx_lfo2_delay},
	{ 3, EMUX_FX_LFO2_FREQ,	fx_lfo2_freq},

	{ 4, EMUX_FX_ENV1_DELAY,	fx_env1_delay},
	{ 5, EMUX_FX_ENV1_ATTACK,fx_env1_attack},
	{ 6, EMUX_FX_ENV1_HOLD,	fx_env1_hold},
	{ 7, EMUX_FX_ENV1_DECAY,	fx_env1_decay},
	{ 8, EMUX_FX_ENV1_SUSTAIN,	fx_env1_sustain},
	{ 9, EMUX_FX_ENV1_RELEASE,	fx_env1_release},

	{10, EMUX_FX_ENV2_DELAY,	fx_env2_delay},
	{11, EMUX_FX_ENV2_ATTACK,	fx_env2_attack},
	{12, EMUX_FX_ENV2_HOLD,	fx_env2_hold},
	{13, EMUX_FX_ENV2_DECAY,	fx_env2_decay},
	{14, EMUX_FX_ENV2_SUSTAIN,	fx_env2_sustain},
	{15, EMUX_FX_ENV2_RELEASE,	fx_env2_release},

	{16, EMUX_FX_INIT_PITCH,	fx_init_pitch},
	{17, EMUX_FX_LFO1_PITCH,	fx_lfo1_pitch},
	{18, EMUX_FX_LFO2_PITCH,	fx_lfo2_pitch},
	{19, EMUX_FX_ENV1_PITCH,	fx_env1_pitch},
	{20, EMUX_FX_LFO1_VOLUME,	fx_lfo1_volume},
	{21, EMUX_FX_CUTOFF,		fx_cutoff},
	{22, EMUX_FX_FILTERQ,	fx_filterQ},
	{23, EMUX_FX_LFO1_CUTOFF,	fx_lfo1_cutoff},
	{24, EMUX_FX_ENV1_CUTOFF,	fx_env1_cutoff},
	{25, EMUX_FX_CHORUS,		fx_chorus},
	{26, EMUX_FX_REVERB,		fx_reverb},
};


/*
 * GS(SC88) NRPN effects; still experimental
 */

/* cutoff: quarter semitone step, max=255 */


static int gs_cutoff(int val)
{
	return (val - 64) * gs_sense[FX_CUTOFF] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* resonance: 0 to 15(max) */


static int gs_filterQ(int val)
{
	return (val - 64) * gs_sense[FX_RESONANCE] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* attack: */


static int gs_attack(int val)
{
	return -(val - 64) * gs_sense[FX_ATTACK] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%

/* decay: */


static int gs_decay(int val)
{
	return -(val - 64) * gs_sense[FX_RELEASE] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%

/* release: */


static int gs_release(int val)
{
	return -(val - 64) * gs_sense[FX_RELEASE] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%

/* vibrato freq: 0.042Hz step, max=255 */


static int gs_vib_rate(int val)
{
	return (val - 64) * gs_sense[FX_VIBRATE] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* vibrato depth: max=127, 1 octave */


static int gs_vib_depth(int val)
{
	return (val - 64) * gs_sense[FX_VIBDEPTH] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* vibrato delay: -0.725msec step */


static int gs_vib_delay(int val)
{
	return -(val - 64) * gs_sense[FX_VIBDELAY] / 50;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%


static const struct nrpn_conv_table gs_effects[] =
{
	{32, EMUX_FX_CUTOFF,	gs_cutoff},
	{33, EMUX_FX_FILTERQ,	gs_filterQ},
	{99, EMUX_FX_ENV2_ATTACK, gs_attack},
	{100, EMUX_FX_ENV2_DECAY, gs_decay},
	{102, EMUX_FX_ENV2_RELEASE, gs_release},
	{8, EMUX_FX_LFO1_FREQ, gs_vib_rate},
	{9, EMUX_FX_LFO1_VOLUME, gs_vib_depth},
	{10, EMUX_FX_LFO1_DELAY, gs_vib_delay},
};


/*
 * NRPN events
 */

void

snd_emux_nrpn(void *p, struct snd_midi_channel *chan,
	      struct snd_midi_channel_set *chset)
{
	struct snd_emux_port *port;

	port = p;
	if (snd_BUG_ON(!port || !chan))
		return;

	if (chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 127 &&
	    chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB] <= 26) {
		int val;
		/* Win/DOS AWE32 specific NRPNs */
		/* both MSB/LSB necessary */
		val = (chan->control[MIDI_CTL_MSB_DATA_ENTRY] << 7) |
			chan->control[MIDI_CTL_LSB_DATA_ENTRY]; 
		val -= 8192;
		send_converted_effect
			(awe_effects, ARRAY_SIZE(awe_effects),
			 port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
			 val, EMUX_FX_FLAG_SET);
		return;
	}

	if (port->chset.midi_mode == SNDRV_MIDI_MODE_GS &&
	    chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 1) {
		int val;
		/* GS specific NRPNs */
		/* only MSB is valid */
		val = chan->control[MIDI_CTL_MSB_DATA_ENTRY];
		send_converted_effect
			(gs_effects, ARRAY_SIZE(gs_effects),
			 port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
			 val, EMUX_FX_FLAG_ADD);
		return;
	}
}


Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 162 91.01% 3 60.00%
takashi iwai takashi iwai 16 8.99% 2 40.00%
Total 178 100.00% 5 100.00%

/*
 * XG control effects; still experimental
 */

/* cutoff: quarter semitone step, max=255 */


static int xg_cutoff(int val)
{
	return (val - 64) * xg_sense[FX_CUTOFF] / 64;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* resonance: 0(open) to 15(most nasal) */


static int xg_filterQ(int val)
{
	return (val - 64) * xg_sense[FX_RESONANCE] / 64;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 23 100.00% 1 100.00%
Total 23 100.00% 1 100.00%

/* attack: */


static int xg_attack(int val)
{
	return -(val - 64) * xg_sense[FX_ATTACK] / 64;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%

/* release: */


static int xg_release(int val)
{
	return -(val - 64) * xg_sense[FX_RELEASE] / 64;
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 24 100.00% 1 100.00%
Total 24 100.00% 1 100.00%


static const struct nrpn_conv_table xg_effects[] =
{
	{71, EMUX_FX_CUTOFF,	xg_cutoff},
	{74, EMUX_FX_FILTERQ,	xg_filterQ},
	{72, EMUX_FX_ENV2_RELEASE, xg_release},
	{73, EMUX_FX_ENV2_ATTACK, xg_attack},
};


int

snd_emux_xg_control(struct snd_emux_port *port, struct snd_midi_channel *chan,
		    int param)
{
	return send_converted_effect(xg_effects, ARRAY_SIZE(xg_effects),
				     port, chan, param,
				     chan->control[param],
				     EMUX_FX_FLAG_ADD);
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 40 90.91% 2 66.67%
takashi iwai takashi iwai 4 9.09% 1 33.33%
Total 44 100.00% 3 100.00%

/*
 * receive sysex
 */

void

snd_emux_sysex(void *p, unsigned char *buf, int len, int parsed,
	       struct snd_midi_channel_set *chset)
{
	struct snd_emux_port *port;
	struct snd_emux *emu;

	port = p;
	if (snd_BUG_ON(!port || !chset))
		return;
	emu = port->emu;

	switch (parsed) {
	case SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME:
		snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
		break;
	default:
		if (emu->ops.sysex)
			emu->ops.sysex(emu, buf, len, parsed, chset);
		break;
	}
}

Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 85 84.16% 2 50.00%
takashi iwai takashi iwai 16 15.84% 2 50.00%
Total 101 100.00% 4 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
jaroslav kysela jaroslav kysela 1516 96.81% 3 50.00%
takashi iwai takashi iwai 46 2.94% 2 33.33%
julia lawall julia lawall 4 0.26% 1 16.67%
Total 1566 100.00% 6 100.00%
  Directory: sound/synth/emux

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
jaroslav kysela	jaroslav kysela	97	94.17%	1	33.33%
takashi iwai	takashi iwai	5	4.85%	1	33.33%
julia lawall	julia lawall	1	0.97%	1	33.33%
	Total	103	100.00%	3	100.00%
cregit-Linux how code gets into the kernel

Release 4.8 sound/synth/emux/emux_nrpn.c

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Overall Contributors
