mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-12-11 21:21:45 +00:00
coelckers
commit
676b710b84
2 changed files with 248 additions and 200 deletions
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@ -1,5 +1,5 @@
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/*
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* Copyright (C) 2013-2014 Nuke.YKT
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* Copyright (C) 2013-2015 Nuke.YKT(Alexey Khokholov)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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@ -27,53 +27,31 @@
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OPL2 ROMs.
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*/
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//version 1.5
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//version 1.6
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/* Changelog:
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v1.1:
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Vibrato's sign fix
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Vibrato's sign fix.
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v1.2:
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Operator key fix
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Corrected 4-operator mode
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Corrected rhythm mode
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Some small fixes
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v1.2.1:
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Small envelope generator fix
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Removed EX_Get function(not used)
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v1.3:
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Complete rewrite
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(Not released)
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v1.4:
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New envelope and waveform generator
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Operator key fix.
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Corrected 4-operator mode.
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Corrected rhythm mode.
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Some small fixes.
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v1.2.1:
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Small envelope generator fix.
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v1.3:
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Complete rewrite.
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v1.4:
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New envelope and waveform generator.
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Some small fixes.
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(Not released)
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v1.4.1:
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Envelope generator rate calculation fix
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(Not released)
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Envelope generator rate calculation fix.
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v1.4.2:
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Version for ZDoom.
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v1.5:
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Optimizations
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*/
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/* Verified:
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Noise generator.
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Waveform generator.
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Envelope generator increase table.
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Tremolo.
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*/
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/* TODO:
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Verify:
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kslrom[15] value(is it 128?).
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Sustain level = 15.
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Vibrato, Phase generator.
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Rhythm part.
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Envelope generator state switching(decay->sustain when egt = 1 and decay->release).
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Feedback.
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Register write.
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4-operator.
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Optimizations.
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v1.6:
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Improved emulation output.
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*/
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#include <stdlib.h>
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@ -216,19 +194,17 @@ envelope_sinfunc envelope_sin[8] = {
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};
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void envelope_gen_off(opl_slot *slott);
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void envelope_gen_change(opl_slot *slott);
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void envelope_gen_attack(opl_slot *slott);
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void envelope_gen_decay(opl_slot *slott);
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void envelope_gen_sustain(opl_slot *slott);
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void envelope_gen_release(opl_slot *slott);
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envelope_genfunc envelope_gen[6] = {
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envelope_genfunc envelope_gen[5] = {
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envelope_gen_off,
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envelope_gen_attack,
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envelope_gen_decay,
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envelope_gen_sustain,
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envelope_gen_release,
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envelope_gen_change
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envelope_gen_release
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};
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enum envelope_gen_num {
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@ -252,7 +228,7 @@ Bit8u envelope_calc_rate(opl_slot *slot, Bit8u reg_rate) {
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}
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void envelope_update_ksl(opl_slot *slot) {
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Bit16s ksl = (kslrom[slot->channel->f_num >> 6] << 1) - ((slot->channel->block ^ 0x07) << 5) - 0x20;
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Bit16s ksl = (kslrom[slot->channel->f_num >> 6] << 2) - ((0x08 - slot->channel->block) << 5);
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if (ksl < 0) {
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ksl = 0;
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}
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@ -281,28 +257,25 @@ void envelope_gen_off(opl_slot *slot) {
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slot->eg_rout = 0x1ff;
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}
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void envelope_gen_change(opl_slot *slot) {
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slot->eg_gen = slot->eg_gennext;
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envelope_update_rate(slot);
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}
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void envelope_gen_attack(opl_slot *slot) {
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if (slot->eg_rout == 0x00) {
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slot->eg_gen = envelope_gen_num_decay;
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envelope_update_rate(slot);
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return;
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}
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slot->eg_rout += ((~slot->eg_rout) *slot->eg_inc) >> 3;
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if (slot->eg_rout < 0x00) {
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slot->eg_rout = 0x00;
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}
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if (!slot->eg_rout) {
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slot->eg_gen = envelope_gen_num_change;
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slot->eg_gennext = envelope_gen_num_decay;
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}
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}
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void envelope_gen_decay(opl_slot *slot) {
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slot->eg_rout += slot->eg_inc;
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if (slot->eg_rout >= slot->reg_sl << 4) {
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slot->eg_gen = envelope_gen_num_change;
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slot->eg_gennext = envelope_gen_num_sustain;
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slot->eg_gen = envelope_gen_num_sustain;
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envelope_update_rate(slot);
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return;
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}
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slot->eg_rout += slot->eg_inc;
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}
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void envelope_gen_sustain(opl_slot *slot) {
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@ -312,11 +285,13 @@ void envelope_gen_sustain(opl_slot *slot) {
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}
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void envelope_gen_release(opl_slot *slot) {
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slot->eg_rout += slot->eg_inc;
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if (slot->eg_rout >= 0x1ff) {
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slot->eg_gen = envelope_gen_num_change;
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slot->eg_gennext = envelope_gen_num_off;
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slot->eg_gen = envelope_gen_num_off;
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slot->eg_rout = 0x1ff;
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envelope_update_rate(slot);
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return;
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}
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slot->eg_rout += slot->eg_inc;
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}
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void envelope_calc(opl_slot *slot) {
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@ -324,10 +299,7 @@ void envelope_calc(opl_slot *slot) {
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rate_h = slot->eg_rate >> 2;
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rate_l = slot->eg_rate & 3;
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Bit8u inc = 0;
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if (slot->eg_gen == envelope_gen_num_attack && rate_h == 0x0f) {
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inc = 8;
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}
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else if (eg_incsh[rate_h] > 0) {
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if (eg_incsh[rate_h] > 0) {
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if ((slot->chip->timer & ((1 << eg_incsh[rate_h]) - 1)) == 0) {
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inc = eg_incstep[eg_incdesc[rate_h]][rate_l][((slot->chip->timer) >> eg_incsh[rate_h]) & 0x07];
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}
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@ -336,14 +308,19 @@ void envelope_calc(opl_slot *slot) {
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inc = eg_incstep[eg_incdesc[rate_h]][rate_l][slot->chip->timer & 0x07] << (-eg_incsh[rate_h]);
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}
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slot->eg_inc = inc;
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envelope_gen[slot->eg_gen](slot);
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slot->eg_out = slot->eg_rout + (slot->reg_tl << 2) + (slot->eg_ksl >> kslshift[slot->reg_ksl]) + *slot->trem;
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envelope_gen[slot->eg_gen](slot);
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}
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void eg_keyon(opl_slot *slot, Bit8u type) {
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if (!slot->key) {
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slot->eg_gen = envelope_gen_num_change;
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slot->eg_gennext = envelope_gen_num_attack;
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slot->eg_gen = envelope_gen_num_attack;
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envelope_update_rate(slot);
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if ((slot->eg_rate >> 2) == 0x0f) {
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slot->eg_gen = envelope_gen_num_decay;
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envelope_update_rate(slot);
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slot->eg_rout = 0x00;
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}
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slot->pg_phase = 0x00;
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}
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slot->key |= type;
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@ -353,8 +330,8 @@ void eg_keyoff(opl_slot *slot, Bit8u type) {
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if (slot->key) {
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slot->key &= (~type);
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if (!slot->key) {
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slot->eg_gen = envelope_gen_num_change;
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slot->eg_gennext = envelope_gen_num_release;
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slot->eg_gen = envelope_gen_num_release;
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envelope_update_rate(slot);
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}
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}
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}
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@ -434,14 +411,14 @@ void slot_generatephase(opl_slot *slot, Bit16u phase) {
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}
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void slot_generate(opl_slot *slot) {
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slot->out = envelope_sin[slot->reg_wf]((slot->pg_phase >> 9) + (*slot->mod), slot->eg_out);
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slot->out = envelope_sin[slot->reg_wf]((Bit16u)(slot->pg_phase >> 9) + (*slot->mod), slot->eg_out);
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}
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void slot_generatezm(opl_slot *slot) {
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slot->out = envelope_sin[slot->reg_wf]((slot->pg_phase >> 9), slot->eg_out);
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slot->out = envelope_sin[slot->reg_wf]((Bit16u)(slot->pg_phase >> 9), slot->eg_out);
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}
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void slot_calgfb(opl_slot *slot) {
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void slot_calcfb(opl_slot *slot) {
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slot->prout[1] = slot->prout[0];
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slot->prout[0] = slot->out;
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if (slot->channel->fb != 0x00) {
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@ -461,57 +438,61 @@ void chan_setupalg(opl_channel *channel);
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void chan_updaterhythm(opl_chip *chip, Bit8u data) {
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chip->rhy = data & 0x3f;
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if (chip->rhy & 0x20) {
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chip->channel[6].out[0] = &chip->slot[13].out;
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chip->channel[6].out[1] = &chip->slot[13].out;
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chip->channel[6].out[2] = &chip->zeromod;
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chip->channel[6].out[3] = &chip->zeromod;
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chip->channel[7].out[0] = &chip->slot[14].out;
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chip->channel[7].out[1] = &chip->slot[14].out;
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chip->channel[7].out[2] = &chip->slot[15].out;
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chip->channel[7].out[3] = &chip->slot[15].out;
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chip->channel[8].out[0] = &chip->slot[16].out;
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chip->channel[8].out[1] = &chip->slot[16].out;
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chip->channel[8].out[2] = &chip->slot[17].out;
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chip->channel[8].out[3] = &chip->slot[17].out;
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opl_channel *channel6 = &chip->channel[6];
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opl_channel *channel7 = &chip->channel[7];
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opl_channel *channel8 = &chip->channel[8];
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channel6->out[0] = &channel6->slots[1]->out;
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channel6->out[1] = &channel6->slots[1]->out;
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channel6->out[2] = &chip->zeromod;
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channel6->out[3] = &chip->zeromod;
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channel7->out[0] = &channel7->slots[0]->out;
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channel7->out[1] = &channel7->slots[0]->out;
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channel7->out[2] = &channel7->slots[1]->out;
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channel7->out[3] = &channel7->slots[1]->out;
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channel8->out[0] = &channel8->slots[0]->out;
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channel8->out[1] = &channel8->slots[0]->out;
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channel8->out[2] = &channel8->slots[1]->out;
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channel8->out[3] = &channel8->slots[1]->out;
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for (Bit8u chnum = 6; chnum < 9; chnum++) {
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chip->channel[chnum].chtype = ch_drum;
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}
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chan_setupalg(channel6);
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//hh
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if (chip->rhy & 0x01) {
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eg_keyon(&chip->slot[14], egk_drum);
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eg_keyon(channel7->slots[0], egk_drum);
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}
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else {
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eg_keyoff(&chip->slot[14], egk_drum);
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eg_keyoff(channel7->slots[0], egk_drum);
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}
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//tc
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if (chip->rhy & 0x02) {
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eg_keyon(&chip->slot[17], egk_drum);
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eg_keyon(channel8->slots[1], egk_drum);
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}
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else {
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eg_keyoff(&chip->slot[17], egk_drum);
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eg_keyoff(channel8->slots[1], egk_drum);
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}
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//tom
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if (chip->rhy & 0x04) {
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eg_keyon(&chip->slot[16], egk_drum);
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eg_keyon(channel8->slots[0], egk_drum);
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}
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else {
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eg_keyoff(&chip->slot[16], egk_drum);
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eg_keyoff(channel8->slots[0], egk_drum);
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}
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//sd
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if (chip->rhy & 0x08) {
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eg_keyon(&chip->slot[15], egk_drum);
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eg_keyon(channel7->slots[1], egk_drum);
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}
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else {
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eg_keyoff(&chip->slot[15], egk_drum);
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eg_keyoff(channel7->slots[1], egk_drum);
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}
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//bd
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if (chip->rhy & 0x10) {
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eg_keyon(&chip->slot[12], egk_drum);
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eg_keyon(&chip->slot[13], egk_drum);
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eg_keyon(channel6->slots[0], egk_drum);
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eg_keyon(channel6->slots[1], egk_drum);
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}
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else {
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eg_keyoff(&chip->slot[12], egk_drum);
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eg_keyoff(&chip->slot[13], egk_drum);
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eg_keyoff(channel6->slots[0], egk_drum);
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eg_keyoff(channel6->slots[1], egk_drum);
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}
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}
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else {
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@ -566,6 +547,16 @@ void chan_writeb0(opl_channel *channel, Bit8u data) {
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void chan_setupalg(opl_channel *channel) {
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if (channel->chtype == ch_drum) {
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switch (channel->alg & 0x01) {
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case 0x00:
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channel->slots[0]->mod = &channel->slots[0]->fbmod;
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channel->slots[1]->mod = &channel->slots[0]->out;
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break;
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case 0x01:
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channel->slots[0]->mod = &channel->slots[0]->fbmod;
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channel->slots[1]->mod = &channel->chip->zeromod;
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break;
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}
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return;
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}
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if (channel->alg & 0x08) {
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@ -672,50 +663,40 @@ void chan_writec0(opl_channel *channel, Bit8u data) {
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}
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}
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void chan_generaterhythm(opl_chip *chip) {
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if (chip->rhy & 0x20) {
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void chan_generaterhythm1(opl_chip *chip) {
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opl_channel *channel6 = &chip->channel[6];
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opl_channel *channel7 = &chip->channel[7];
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opl_channel *channel8 = &chip->channel[8];
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slot_generate(channel6->slots[0]);
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slot_generate(channel6->slots[1]);
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Bit16u phase14 = channel7->slots[0]->pg_phase & 0x3ff;
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Bit16u phase17 = channel8->slots[1]->pg_phase & 0x3ff;
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Bit16u phase14 = (channel7->slots[0]->pg_phase >> 9) & 0x3ff;
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Bit16u phase17 = (channel8->slots[1]->pg_phase >> 9) & 0x3ff;
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Bit16u phase = 0x00;
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//hh tc phase bit
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Bit16u phasebit = ((phase14 & 0x08) | (((phase14 >> 5) ^ phase14) & 0x04) | (((phase17 >> 2) ^ phase17) & 0x08)) ? 0x01 : 0x00;
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//hh
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phase = (phasebit << 9) | (0x34 << ((phasebit ^ (chip->noise & 0x01) << 1)));
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slot_generatephase(channel7->slots[0], phase);
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//tt
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slot_generatezm(channel8->slots[0]);
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}
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void chan_generaterhythm2(opl_chip *chip) {
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opl_channel *channel6 = &chip->channel[6];
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opl_channel *channel7 = &chip->channel[7];
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opl_channel *channel8 = &chip->channel[8];
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slot_generate(channel6->slots[1]);
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Bit16u phase14 = (channel7->slots[0]->pg_phase >> 9) & 0x3ff;
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Bit16u phase17 = (channel8->slots[1]->pg_phase >> 9) & 0x3ff;
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Bit16u phase = 0x00;
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//hh tc phase bit
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Bit16u phasebit = ((phase14 & 0x08) | (((phase14 >> 5) ^ phase14) & 0x04) | (((phase17 >> 2) ^ phase17) & 0x08)) ? 0x01 : 0x00;
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//sd
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phase = (0x100 << ((phase14 >> 8) & 0x01)) ^ ((chip->noise & 0x01) << 8);
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slot_generatephase(channel7->slots[1], phase);
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//tt
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slot_generatezm(channel8->slots[0]);
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//tc
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phase = 0x100 | (phasebit << 9);
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slot_generatephase(channel8->slots[1], phase);
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}
|
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}
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|
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void chan_generate(opl_channel *channel) {
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if (channel->chtype == ch_drum) {
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return;
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}
|
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if (channel->alg & 0x08) {
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return;
|
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}
|
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if (channel->alg & 0x04) {
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slot_generate(channel->pair->slots[0]);
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slot_generate(channel->pair->slots[1]);
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slot_generate(channel->slots[0]);
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slot_generate(channel->slots[1]);
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}
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else {
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slot_generate(channel->slots[0]);
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slot_generate(channel->slots[1]);
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}
|
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}
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|
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void chan_enable(opl_channel *channel) {
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if (channel->chip->newm) {
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|
|
@ -782,21 +763,132 @@ Bit16s limshort(Bit32s a) {
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return (Bit16s)a;
|
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}
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|
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void chip_generate(opl_chip *chip, Bit16s *buff) {
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buff[1] = limshort(chip->mixbuff[1]);
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|
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for (Bit8u ii = 0; ii < 12; ii++) {
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slot_calcfb(&chip->slot[ii]);
|
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pg_generate(&chip->slot[ii]);
|
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envelope_calc(&chip->slot[ii]);
|
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slot_generate(&chip->slot[ii]);
|
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}
|
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|
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for (Bit8u ii = 12; ii < 15; ii++) {
|
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slot_calcfb(&chip->slot[ii]);
|
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pg_generate(&chip->slot[ii]);
|
||||
envelope_calc(&chip->slot[ii]);
|
||||
}
|
||||
|
||||
if (chip->rhy & 0x20) {
|
||||
chan_generaterhythm1(chip);
|
||||
}
|
||||
else {
|
||||
slot_generate(&chip->slot[12]);
|
||||
slot_generate(&chip->slot[13]);
|
||||
slot_generate(&chip->slot[14]);
|
||||
}
|
||||
|
||||
chip->mixbuff[0] = 0;
|
||||
for (Bit8u ii = 0; ii < 18; ii++) {
|
||||
Bit16s accm = 0;
|
||||
for (Bit8u jj = 0; jj < 4; jj++) {
|
||||
accm += *chip->channel[ii].out[jj];
|
||||
}
|
||||
if (chip->FullPan) {
|
||||
chip->mixbuff[0] += (Bit16s)(accm * chip->channel[ii].fcha);
|
||||
}
|
||||
else {
|
||||
chip->mixbuff[0] += (Bit16s)(accm & chip->channel[ii].cha);
|
||||
}
|
||||
}
|
||||
|
||||
for (Bit8u ii = 15; ii < 18; ii++) {
|
||||
slot_calcfb(&chip->slot[ii]);
|
||||
pg_generate(&chip->slot[ii]);
|
||||
envelope_calc(&chip->slot[ii]);
|
||||
}
|
||||
|
||||
if (chip->rhy & 0x20) {
|
||||
chan_generaterhythm2(chip);
|
||||
}
|
||||
else {
|
||||
slot_generate(&chip->slot[15]);
|
||||
slot_generate(&chip->slot[16]);
|
||||
slot_generate(&chip->slot[17]);
|
||||
}
|
||||
|
||||
buff[0] = limshort(chip->mixbuff[0]);
|
||||
|
||||
for (Bit8u ii = 18; ii < 33; ii++) {
|
||||
slot_calcfb(&chip->slot[ii]);
|
||||
pg_generate(&chip->slot[ii]);
|
||||
envelope_calc(&chip->slot[ii]);
|
||||
slot_generate(&chip->slot[ii]);
|
||||
}
|
||||
|
||||
chip->mixbuff[1] = 0;
|
||||
for (Bit8u ii = 0; ii < 18; ii++) {
|
||||
Bit16s accm = 0;
|
||||
for (Bit8u jj = 0; jj < 4; jj++) {
|
||||
accm += *chip->channel[ii].out[jj];
|
||||
}
|
||||
if (chip->FullPan) {
|
||||
chip->mixbuff[1] += (Bit16s)(accm * chip->channel[ii].fchb);
|
||||
}
|
||||
else {
|
||||
chip->mixbuff[1] += (Bit16s)(accm & chip->channel[ii].chb);
|
||||
}
|
||||
}
|
||||
|
||||
for (Bit8u ii = 33; ii < 36; ii++) {
|
||||
slot_calcfb(&chip->slot[ii]);
|
||||
pg_generate(&chip->slot[ii]);
|
||||
envelope_calc(&chip->slot[ii]);
|
||||
slot_generate(&chip->slot[ii]);
|
||||
}
|
||||
|
||||
n_generate(chip);
|
||||
|
||||
if ((chip->timer & 0x3f) == 0x3f) {
|
||||
if (!chip->tremdir) {
|
||||
if (chip->tremtval == 105) {
|
||||
chip->tremtval--;
|
||||
chip->tremdir = 1;
|
||||
}
|
||||
else {
|
||||
chip->tremtval++;
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (chip->tremtval == 0) {
|
||||
chip->tremtval++;
|
||||
chip->tremdir = 0;
|
||||
}
|
||||
else {
|
||||
chip->tremtval--;
|
||||
}
|
||||
}
|
||||
chip->tremval = (chip->tremtval >> 2) >> ((1 - chip->dam) << 1);
|
||||
}
|
||||
|
||||
chip->timer++;
|
||||
}
|
||||
|
||||
void NukedOPL3::Reset() {
|
||||
memset(&opl3, 0, sizeof(opl_chip));
|
||||
for (Bit8u slotnum = 0; slotnum < 36; slotnum++) {
|
||||
opl3.slot[slotnum].channel = &opl3.channel[slotnum / 2];
|
||||
opl3.slot[slotnum].chip = &opl3;
|
||||
opl3.slot[slotnum].mod = &opl3.zeromod;
|
||||
opl3.slot[slotnum].eg_rout = 0x1ff;
|
||||
opl3.slot[slotnum].eg_out = 0x1ff;
|
||||
opl3.slot[slotnum].eg_gen = envelope_gen_num_off;
|
||||
opl3.slot[slotnum].eg_gennext = envelope_gen_num_off;
|
||||
opl3.slot[slotnum].trem = (Bit8u*)&opl3.zeromod;
|
||||
}
|
||||
for (Bit8u channum = 0; channum < 18; channum++) {
|
||||
opl3.channel[channum].slots[0] = &opl3.slot[2 * channum];
|
||||
opl3.channel[channum].slots[1] = &opl3.slot[2 * channum + 1];
|
||||
opl3.channel[channum].slots[0] = &opl3.slot[ch_slot[channum]];
|
||||
opl3.channel[channum].slots[1] = &opl3.slot[ch_slot[channum] + 3];
|
||||
opl3.slot[ch_slot[channum]].channel = &opl3.channel[channum];
|
||||
opl3.slot[ch_slot[channum] + 3].channel = &opl3.channel[channum];
|
||||
if ((channum % 9) < 3) {
|
||||
opl3.channel[channum].pair = &opl3.channel[channum + 3];
|
||||
}
|
||||
|
|
@ -816,6 +908,8 @@ void NukedOPL3::Reset() {
|
|||
chan_setupalg(&opl3.channel[channum]);
|
||||
}
|
||||
opl3.noise = 0x306600;
|
||||
opl3.timer = 0;
|
||||
opl3.FullPan = FullPan;
|
||||
}
|
||||
|
||||
void NukedOPL3::WriteReg(int reg, int v) {
|
||||
|
|
@ -903,58 +997,11 @@ void NukedOPL3::WriteReg(int reg, int v) {
|
|||
}
|
||||
|
||||
void NukedOPL3::Update(float* sndptr, int numsamples) {
|
||||
Bit32s outa, outb;
|
||||
Bit16s buffer[2];
|
||||
for (Bit32u i = 0; i < (Bit32u)numsamples; i++) {
|
||||
outa = 0;
|
||||
outb = 0;
|
||||
for (Bit8u ii = 0; ii < 36; ii++) {
|
||||
slot_calgfb(&opl3.slot[ii]);
|
||||
}
|
||||
chan_generaterhythm(&opl3);
|
||||
for (Bit8u ii = 0; ii < 18; ii++) {
|
||||
chan_generate(&opl3.channel[ii]);
|
||||
Bit16s accm = 0;
|
||||
for (Bit8u jj = 0; jj < 4; jj++) {
|
||||
accm += *opl3.channel[ii].out[jj];
|
||||
}
|
||||
if (FullPan) {
|
||||
outa += (Bit16s)(accm * opl3.channel[ii].fcha);
|
||||
outb += (Bit16s)(accm * opl3.channel[ii].fchb);
|
||||
}
|
||||
else {
|
||||
outa += (Bit16s)(accm & opl3.channel[ii].cha);
|
||||
outb += (Bit16s)(accm & opl3.channel[ii].chb);
|
||||
}
|
||||
}
|
||||
for (Bit8u ii = 0; ii < 36; ii++) {
|
||||
envelope_calc(&opl3.slot[ii]);
|
||||
pg_generate(&opl3.slot[ii]);
|
||||
}
|
||||
n_generate(&opl3);
|
||||
opl3.timer++;
|
||||
if (!(opl3.timer & 0x3f)) {
|
||||
if (!opl3.tremdir) {
|
||||
if (opl3.tremtval == 105) {
|
||||
opl3.tremtval--;
|
||||
opl3.tremdir = 1;
|
||||
}
|
||||
else {
|
||||
opl3.tremtval++;
|
||||
}
|
||||
}
|
||||
else {
|
||||
if (opl3.tremtval == 0) {
|
||||
opl3.tremtval++;
|
||||
opl3.tremdir = 0;
|
||||
}
|
||||
else {
|
||||
opl3.tremtval--;
|
||||
}
|
||||
}
|
||||
opl3.tremval = (opl3.tremtval >> 2) >> ((1 - opl3.dam) << 1);
|
||||
}
|
||||
*sndptr++ += (float)(outa / 10240.0);
|
||||
*sndptr++ += (float)(outb / 10240.0);
|
||||
chip_generate(&opl3, buffer);
|
||||
*sndptr++ += (float)(buffer[0] / 10240.0);
|
||||
*sndptr++ += (float)(buffer[1] / 10240.0);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* Copyright (C) 2013-2014 Nuke.YKT
|
||||
* Copyright (C) 2013-2015 Nuke.YKT(Alexey Khokholov)
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
|
|
@ -27,7 +27,7 @@
|
|||
OPL2 ROMs.
|
||||
*/
|
||||
|
||||
//version 1.5
|
||||
//version 1.6
|
||||
|
||||
#include "opl.h"
|
||||
#include "muslib.h"
|
||||
|
|
@ -116,7 +116,7 @@ static const Bit8u mt[16] = { 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 20, 24, 24,
|
|||
// ksl table
|
||||
//
|
||||
|
||||
static const Bit8u kslrom[16] = { 0, 64, 80, 90, 96, 102, 106, 110, 112, 116, 118, 120, 122, 124, 126, 127 };
|
||||
static const Bit8u kslrom[16] = { 0, 32, 40, 45, 48, 51, 53, 55, 56, 58, 59, 60, 61, 62, 63, 64 };
|
||||
|
||||
static const Bit8u kslshift[4] = { 8, 1, 2, 0 };
|
||||
|
||||
|
|
@ -133,7 +133,7 @@ static const Bit8s vibsgn_table[8] = { 1, 1, 1, 1, -1, -1, -1, -1 };
|
|||
|
||||
static const Bit8u eg_incstep[3][4][8] = {
|
||||
{ { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 } },
|
||||
{ { 0, 1, 0, 1, 0, 1, 0, 1 }, { 1, 1, 0, 1, 0, 1, 0, 1 }, { 1, 1, 0, 1, 1, 1, 0, 1 }, { 1, 1, 1, 1, 1, 1, 0, 1 } },
|
||||
{ { 0, 1, 0, 1, 0, 1, 0, 1 }, { 0, 1, 0, 1, 1, 1, 0, 1 }, { 0, 1, 1, 1, 0, 1, 1, 1 }, { 0, 1, 1, 1, 1, 1, 1, 1 } },
|
||||
{ { 1, 1, 1, 1, 1, 1, 1, 1 }, { 2, 2, 1, 1, 1, 1, 1, 1 }, { 2, 2, 1, 1, 2, 2, 1, 1 }, { 2, 2, 2, 2, 2, 2, 1, 1 } }
|
||||
};
|
||||
|
||||
|
|
@ -149,8 +149,8 @@ static const Bit8s eg_incsh[16] = {
|
|||
// address decoding
|
||||
//
|
||||
|
||||
static const Bit8s ad_slot[0x20] = { 0, 2, 4, 1, 3, 5, -1, -1, 6, 8, 10, 7, 9, 11, -1, -1, 12, 14, 16, 13, 15, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
|
||||
|
||||
static const Bit8s ad_slot[0x20] = { 0, 1, 2, 3, 4, 5, -1, -1, 6, 7, 8, 9, 10, 11, -1, -1, 12, 13, 14, 15, 16, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 };
|
||||
static const Bit8u ch_slot[18] = { 0, 1, 2, 6, 7, 8, 12, 13, 14, 18, 19, 20, 24, 25, 26, 30, 31, 32 };
|
||||
|
||||
struct opl_chip;
|
||||
struct opl_slot;
|
||||
|
|
@ -167,7 +167,6 @@ struct opl_slot {
|
|||
Bit16s eg_out;
|
||||
Bit8u eg_inc;
|
||||
Bit8u eg_gen;
|
||||
Bit8u eg_gennext;
|
||||
Bit8u eg_rate;
|
||||
Bit8u eg_ksl;
|
||||
Bit8u *trem;
|
||||
|
|
@ -217,6 +216,8 @@ struct opl_chip {
|
|||
Bit8u tremdir;
|
||||
Bit32u noise;
|
||||
Bit16s zeromod;
|
||||
Bit32s mixbuff[2];
|
||||
Bit8u FullPan;
|
||||
};
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue