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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
384 lines
9.1 KiB
C
384 lines
9.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* NRPN / SYSEX callbacks for Emu8k/Emu10k1
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*
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* Copyright (c) 1999-2000 Takashi Iwai <tiwai@suse.de>
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*/
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#include "emux_voice.h"
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#include <sound/asoundef.h>
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/*
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* conversion from NRPN/control parameters to Emu8000 raw parameters
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*/
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/* NRPN / CC -> Emu8000 parameter converter */
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struct nrpn_conv_table {
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int control;
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int effect;
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int (*convert)(int val);
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};
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/* effect sensitivity */
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#define FX_CUTOFF 0
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#define FX_RESONANCE 1
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#define FX_ATTACK 2
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#define FX_RELEASE 3
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#define FX_VIBRATE 4
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#define FX_VIBDEPTH 5
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#define FX_VIBDELAY 6
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#define FX_NUMS 7
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/*
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* convert NRPN/control values
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*/
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static int send_converted_effect(const struct nrpn_conv_table *table,
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int num_tables,
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struct snd_emux_port *port,
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struct snd_midi_channel *chan,
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int type, int val, int mode)
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{
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int i, cval;
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for (i = 0; i < num_tables; i++) {
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if (table[i].control == type) {
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cval = table[i].convert(val);
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snd_emux_send_effect(port, chan, table[i].effect,
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cval, mode);
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return 1;
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}
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}
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return 0;
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}
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#define DEF_FX_CUTOFF 170
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#define DEF_FX_RESONANCE 6
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#define DEF_FX_ATTACK 50
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#define DEF_FX_RELEASE 50
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#define DEF_FX_VIBRATE 30
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#define DEF_FX_VIBDEPTH 4
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#define DEF_FX_VIBDELAY 1500
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/* effect sensitivities for GS NRPN:
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* adjusted for chaos 8MB soundfonts
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*/
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static int gs_sense[] =
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{
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DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
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DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
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};
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/* effect sensitivies for XG controls:
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* adjusted for chaos 8MB soundfonts
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*/
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static int xg_sense[] =
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{
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DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE,
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DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY
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};
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/*
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* AWE32 NRPN effects
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*/
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static int fx_delay(int val);
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static int fx_attack(int val);
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static int fx_hold(int val);
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static int fx_decay(int val);
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static int fx_the_value(int val);
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static int fx_twice_value(int val);
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static int fx_conv_pitch(int val);
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static int fx_conv_Q(int val);
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/* function for each NRPN */ /* [range] units */
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#define fx_env1_delay fx_delay /* [0,5900] 4msec */
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#define fx_env1_attack fx_attack /* [0,5940] 1msec */
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#define fx_env1_hold fx_hold /* [0,8191] 1msec */
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#define fx_env1_decay fx_decay /* [0,5940] 4msec */
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#define fx_env1_release fx_decay /* [0,5940] 4msec */
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#define fx_env1_sustain fx_the_value /* [0,127] 0.75dB */
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#define fx_env1_pitch fx_the_value /* [-127,127] 9.375cents */
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#define fx_env1_cutoff fx_the_value /* [-127,127] 56.25cents */
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#define fx_env2_delay fx_delay /* [0,5900] 4msec */
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#define fx_env2_attack fx_attack /* [0,5940] 1msec */
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#define fx_env2_hold fx_hold /* [0,8191] 1msec */
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#define fx_env2_decay fx_decay /* [0,5940] 4msec */
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#define fx_env2_release fx_decay /* [0,5940] 4msec */
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#define fx_env2_sustain fx_the_value /* [0,127] 0.75dB */
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#define fx_lfo1_delay fx_delay /* [0,5900] 4msec */
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#define fx_lfo1_freq fx_twice_value /* [0,127] 84mHz */
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#define fx_lfo1_volume fx_twice_value /* [0,127] 0.1875dB */
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#define fx_lfo1_pitch fx_the_value /* [-127,127] 9.375cents */
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#define fx_lfo1_cutoff fx_twice_value /* [-64,63] 56.25cents */
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#define fx_lfo2_delay fx_delay /* [0,5900] 4msec */
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#define fx_lfo2_freq fx_twice_value /* [0,127] 84mHz */
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#define fx_lfo2_pitch fx_the_value /* [-127,127] 9.375cents */
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#define fx_init_pitch fx_conv_pitch /* [-8192,8192] cents */
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#define fx_chorus fx_the_value /* [0,255] -- */
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#define fx_reverb fx_the_value /* [0,255] -- */
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#define fx_cutoff fx_twice_value /* [0,127] 62Hz */
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#define fx_filterQ fx_conv_Q /* [0,127] -- */
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static int fx_delay(int val)
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{
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return (unsigned short)snd_sf_calc_parm_delay(val);
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}
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static int fx_attack(int val)
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{
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return (unsigned short)snd_sf_calc_parm_attack(val);
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}
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static int fx_hold(int val)
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{
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return (unsigned short)snd_sf_calc_parm_hold(val);
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}
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static int fx_decay(int val)
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{
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return (unsigned short)snd_sf_calc_parm_decay(val);
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}
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static int fx_the_value(int val)
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{
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return (unsigned short)(val & 0xff);
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}
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static int fx_twice_value(int val)
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{
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return (unsigned short)((val * 2) & 0xff);
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}
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static int fx_conv_pitch(int val)
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{
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return (short)(val * 4096 / 1200);
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}
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static int fx_conv_Q(int val)
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{
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return (unsigned short)((val / 8) & 0xff);
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}
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static const struct nrpn_conv_table awe_effects[] =
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{
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{ 0, EMUX_FX_LFO1_DELAY, fx_lfo1_delay},
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{ 1, EMUX_FX_LFO1_FREQ, fx_lfo1_freq},
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{ 2, EMUX_FX_LFO2_DELAY, fx_lfo2_delay},
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{ 3, EMUX_FX_LFO2_FREQ, fx_lfo2_freq},
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{ 4, EMUX_FX_ENV1_DELAY, fx_env1_delay},
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{ 5, EMUX_FX_ENV1_ATTACK,fx_env1_attack},
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{ 6, EMUX_FX_ENV1_HOLD, fx_env1_hold},
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{ 7, EMUX_FX_ENV1_DECAY, fx_env1_decay},
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{ 8, EMUX_FX_ENV1_SUSTAIN, fx_env1_sustain},
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{ 9, EMUX_FX_ENV1_RELEASE, fx_env1_release},
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{10, EMUX_FX_ENV2_DELAY, fx_env2_delay},
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{11, EMUX_FX_ENV2_ATTACK, fx_env2_attack},
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{12, EMUX_FX_ENV2_HOLD, fx_env2_hold},
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{13, EMUX_FX_ENV2_DECAY, fx_env2_decay},
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{14, EMUX_FX_ENV2_SUSTAIN, fx_env2_sustain},
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{15, EMUX_FX_ENV2_RELEASE, fx_env2_release},
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{16, EMUX_FX_INIT_PITCH, fx_init_pitch},
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{17, EMUX_FX_LFO1_PITCH, fx_lfo1_pitch},
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{18, EMUX_FX_LFO2_PITCH, fx_lfo2_pitch},
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{19, EMUX_FX_ENV1_PITCH, fx_env1_pitch},
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{20, EMUX_FX_LFO1_VOLUME, fx_lfo1_volume},
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{21, EMUX_FX_CUTOFF, fx_cutoff},
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{22, EMUX_FX_FILTERQ, fx_filterQ},
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{23, EMUX_FX_LFO1_CUTOFF, fx_lfo1_cutoff},
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{24, EMUX_FX_ENV1_CUTOFF, fx_env1_cutoff},
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{25, EMUX_FX_CHORUS, fx_chorus},
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{26, EMUX_FX_REVERB, fx_reverb},
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};
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/*
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* GS(SC88) NRPN effects; still experimental
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*/
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/* cutoff: quarter semitone step, max=255 */
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static int gs_cutoff(int val)
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{
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return (val - 64) * gs_sense[FX_CUTOFF] / 50;
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}
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/* resonance: 0 to 15(max) */
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static int gs_filterQ(int val)
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{
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return (val - 64) * gs_sense[FX_RESONANCE] / 50;
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}
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/* attack: */
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static int gs_attack(int val)
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{
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return -(val - 64) * gs_sense[FX_ATTACK] / 50;
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}
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/* decay: */
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static int gs_decay(int val)
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{
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return -(val - 64) * gs_sense[FX_RELEASE] / 50;
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}
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/* release: */
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static int gs_release(int val)
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{
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return -(val - 64) * gs_sense[FX_RELEASE] / 50;
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}
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/* vibrato freq: 0.042Hz step, max=255 */
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static int gs_vib_rate(int val)
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{
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return (val - 64) * gs_sense[FX_VIBRATE] / 50;
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}
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/* vibrato depth: max=127, 1 octave */
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static int gs_vib_depth(int val)
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{
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return (val - 64) * gs_sense[FX_VIBDEPTH] / 50;
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}
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/* vibrato delay: -0.725msec step */
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static int gs_vib_delay(int val)
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{
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return -(val - 64) * gs_sense[FX_VIBDELAY] / 50;
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}
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static const struct nrpn_conv_table gs_effects[] =
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{
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{32, EMUX_FX_CUTOFF, gs_cutoff},
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{33, EMUX_FX_FILTERQ, gs_filterQ},
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{99, EMUX_FX_ENV2_ATTACK, gs_attack},
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{100, EMUX_FX_ENV2_DECAY, gs_decay},
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{102, EMUX_FX_ENV2_RELEASE, gs_release},
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{8, EMUX_FX_LFO1_FREQ, gs_vib_rate},
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{9, EMUX_FX_LFO1_VOLUME, gs_vib_depth},
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{10, EMUX_FX_LFO1_DELAY, gs_vib_delay},
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};
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/*
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* NRPN events
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*/
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void
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snd_emux_nrpn(void *p, struct snd_midi_channel *chan,
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struct snd_midi_channel_set *chset)
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{
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struct snd_emux_port *port;
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port = p;
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if (snd_BUG_ON(!port || !chan))
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return;
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if (chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 127 &&
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chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB] <= 26) {
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int val;
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/* Win/DOS AWE32 specific NRPNs */
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/* both MSB/LSB necessary */
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val = (chan->control[MIDI_CTL_MSB_DATA_ENTRY] << 7) |
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chan->control[MIDI_CTL_LSB_DATA_ENTRY];
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val -= 8192;
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send_converted_effect
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(awe_effects, ARRAY_SIZE(awe_effects),
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port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
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val, EMUX_FX_FLAG_SET);
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return;
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}
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if (port->chset.midi_mode == SNDRV_MIDI_MODE_GS &&
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chan->control[MIDI_CTL_NONREG_PARM_NUM_MSB] == 1) {
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int val;
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/* GS specific NRPNs */
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/* only MSB is valid */
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val = chan->control[MIDI_CTL_MSB_DATA_ENTRY];
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send_converted_effect
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(gs_effects, ARRAY_SIZE(gs_effects),
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port, chan, chan->control[MIDI_CTL_NONREG_PARM_NUM_LSB],
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val, EMUX_FX_FLAG_ADD);
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return;
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}
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}
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/*
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* XG control effects; still experimental
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*/
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/* cutoff: quarter semitone step, max=255 */
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static int xg_cutoff(int val)
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{
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return (val - 64) * xg_sense[FX_CUTOFF] / 64;
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}
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/* resonance: 0(open) to 15(most nasal) */
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static int xg_filterQ(int val)
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{
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return (val - 64) * xg_sense[FX_RESONANCE] / 64;
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}
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/* attack: */
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static int xg_attack(int val)
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{
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return -(val - 64) * xg_sense[FX_ATTACK] / 64;
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}
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/* release: */
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static int xg_release(int val)
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{
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return -(val - 64) * xg_sense[FX_RELEASE] / 64;
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}
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static const struct nrpn_conv_table xg_effects[] =
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{
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{71, EMUX_FX_CUTOFF, xg_cutoff},
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{74, EMUX_FX_FILTERQ, xg_filterQ},
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{72, EMUX_FX_ENV2_RELEASE, xg_release},
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{73, EMUX_FX_ENV2_ATTACK, xg_attack},
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};
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int
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snd_emux_xg_control(struct snd_emux_port *port, struct snd_midi_channel *chan,
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int param)
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{
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return send_converted_effect(xg_effects, ARRAY_SIZE(xg_effects),
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port, chan, param,
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chan->control[param],
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EMUX_FX_FLAG_ADD);
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}
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/*
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* receive sysex
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*/
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void
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snd_emux_sysex(void *p, unsigned char *buf, int len, int parsed,
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struct snd_midi_channel_set *chset)
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{
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struct snd_emux_port *port;
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struct snd_emux *emu;
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port = p;
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if (snd_BUG_ON(!port || !chset))
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return;
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emu = port->emu;
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switch (parsed) {
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case SNDRV_MIDI_SYSEX_GS_MASTER_VOLUME:
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snd_emux_update_port(port, SNDRV_EMUX_UPDATE_VOLUME);
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break;
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default:
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if (emu->ops.sysex)
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emu->ops.sysex(emu, buf, len, parsed, chset);
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break;
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}
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}
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