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https://github.com/libretro/scummvm.git
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940 lines
20 KiB
C++
940 lines
20 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001 Ludvig Strigeus
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* Copyright (C) 2001/2002 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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#include "stdafx.h"
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#include "scumm.h"
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#include "fmopl.h"
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#if defined USE_ADLIB
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static byte lookup_table[64][32];
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const byte volume_table[] = {
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0, 4, 7, 11,
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13, 16, 18, 20,
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22, 24, 26, 27,
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29, 30, 31, 33,
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34, 35, 36, 37,
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38, 39, 40, 41,
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42, 43, 44, 44,
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45, 46, 47, 47,
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48, 49, 49, 50,
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51, 51, 52, 53,
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53, 54, 54, 55,
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55, 56, 56, 57,
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57, 58, 58, 59,
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59, 60, 60, 60,
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61, 61, 62, 62,
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62, 63, 63, 63
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};
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int lookup_volume(int a, int b) {
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if (b==0)
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return 0;
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if (b==31)
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return a;
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if (a<-63 || a>63) {
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return b * (a+1) >> 5;
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}
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if (b<0) {
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if (a<0) {
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return lookup_table[-a][-b];
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} else {
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return -lookup_table[a][-b];
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}
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} else {
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if (a<0) {
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return -lookup_table[-a][b];
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} else {
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return lookup_table[a][b];
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}
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}
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}
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void create_lookup_table() {
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int i,j;
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int sum;
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for (i=0; i<64; i++) {
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sum = i;
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for (j=0; j<32; j++) {
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lookup_table[i][j] = sum >> 5;
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sum += i;
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}
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}
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for (i=0; i<64; i++)
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lookup_table[i][0] = 0;
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}
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MidiChannelAdl *AdlibSoundDriver::allocate_midichan(byte pri) {
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MidiChannelAdl *ac,*best=NULL;
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int i;
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for (i=0; i<9; i++) {
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if (++_midichan_index >= 9)
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_midichan_index = 0;
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ac = &_midi_channels[_midichan_index];
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if (!ac->_part)
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return ac;
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if (!ac->_next) {
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if (ac->_part->_pri_eff <= pri) {
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pri = ac->_part->_pri_eff;
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best = ac;
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}
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}
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}
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if (best)
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mc_off(best);
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else
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;//debug(1, "Denying adlib channel request");
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return best;
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}
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void AdlibSoundDriver::init(SoundEngine *eng) {
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int i;
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MidiChannelAdl *mc;
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_se = eng;
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for(i=0,mc=_midi_channels; i!=ARRAYSIZE(_midi_channels);i++,mc++) {
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mc->_channel = i;
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mc->_s11a.s10 = &mc->_s10b;
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mc->_s11b.s10 = &mc->_s10a;
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}
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_adlib_reg_cache = (byte*)calloc(256,1);
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#ifdef _WIN32_WCE // Poor WIN32 won't handle 22050 well !
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_opl = OPLCreate(OPL_TYPE_YM3812,3579545,11025);
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#else
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_opl = OPLCreate(OPL_TYPE_YM3812,3579545,22050);
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#endif
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adlib_write(1,0x20);
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adlib_write(8,0x40);
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adlib_write(0xBD, 0x00);
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create_lookup_table();
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}
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void AdlibSoundDriver::adlib_write(byte port, byte value) {
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if (_adlib_reg_cache[port] == value)
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return;
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_adlib_reg_cache[port] = value;
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OPLWriteReg(_opl, port, value);
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}
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void AdlibSoundDriver::adlib_key_off(int chan) {
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byte port = chan + 0xB0;
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adlib_write(port, adlib_read(port)&~0x20);
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}
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struct AdlibSetParams {
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byte a,b,c,d;
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};
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static const byte channel_mappings[9] = {
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0, 1, 2, 8,
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9,10,16,17,
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18
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};
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static const byte channel_mappings_2[9] = {
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3, 4, 5, 11,
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12,13,19,20,
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21
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};
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static const AdlibSetParams adlib_setparam_table[] = {
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{0x40,0,63,63}, /* level */
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{0xE0,2,0,0}, /* unused */
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{0x40,6,192,0}, /* level key scaling */
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{0x20,0,15,0}, /* modulator frequency multiple */
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{0x60,4,240,15},/* attack rate */
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{0x60,0,15,15}, /* decay rate */
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{0x80,4,240,15}, /* sustain level */
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{0x80,0,15,15}, /* release rate */
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{0xE0,0,3,0}, /* waveform select */
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{0x20,7,128,0}, /* amp mod */
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{0x20,6,64,0}, /* vib */
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{0x20,5,32,0}, /* eg typ */
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{0x20,4,16,0}, /* ksr */
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{0xC0,0,1,0}, /* decay alg */
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{0xC0,1,14,0} /* feedback */
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};
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void AdlibSoundDriver::adlib_set_param(int channel, byte param, int value) {
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const AdlibSetParams *as;
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byte port;
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assert(channel>=0 && channel<9);
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if (param <= 12) {
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port = channel_mappings_2[channel];
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} else if (param <= 25) {
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param -= 13;
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port = channel_mappings[channel];
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} else if (param <= 27) {
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param -= 13;
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port = channel;
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} else if (param==28 || param==29) {
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if (param==28)
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value -= 15;
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else
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value -= 383;
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value <<= 4;
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channel_table_2[channel] = value;
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adlib_playnote(channel, curnote_table[channel] + value);
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return;
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}else {
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return;
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}
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as = &adlib_setparam_table[param];
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if (as->d)
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value = as->d - value;
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port += as->a;
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adlib_write(port, (adlib_read(port) & ~as->c) | (((byte)value)<<as->b));
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}
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static const byte octave_numbers[] = {
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 3, 3, 3, 3,
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3, 3, 3, 3, 3, 3, 3, 3,
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4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 4, 4, 5, 5, 5, 5,
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5, 5, 5, 5, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 6, 6, 6,
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6, 6, 6, 6, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7,
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7, 7, 7, 7, 7, 7, 7, 7
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};
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static const byte note_numbers[]= {
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3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 3, 4, 5, 6,
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7, 8, 9, 10, 11, 12, 13, 14,
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3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 3, 4, 5, 6,
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7, 8, 9, 10, 11, 12, 13, 14,
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3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 3, 4, 5, 6,
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7, 8, 9, 10, 11, 12, 13, 14,
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3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 3, 4, 5, 6,
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7, 8, 9, 10, 11, 12, 13, 14,
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3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 3, 4, 5, 6,
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7, 8, 9, 10, 11, 12, 13, 14,
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3, 4, 5, 6, 7, 8, 9, 10
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};
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static const byte note_to_f_num[] = {
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90, 91, 92, 92, 93, 94, 94, 95,
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96, 96, 97, 98, 98, 99, 100, 101,
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101, 102, 103, 104, 104, 105, 106, 107,
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107, 108, 109, 110, 111, 111, 112, 113,
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114, 115, 115, 116, 117, 118, 119, 120,
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121, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 132, 133, 134,
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135, 136, 137, 138, 139, 140, 141, 142,
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143, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 157, 158, 159, 160,
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161, 162, 163, 165, 166, 167, 168, 169,
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171, 172, 173, 174, 176, 177, 178, 180,
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181, 182, 184, 185, 186, 188, 189, 190,
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192, 193, 194, 196, 197, 199, 200, 202,
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203, 205, 206, 208, 209, 211, 212, 214,
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215, 217, 218, 220, 222, 223, 225, 226,
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228, 230, 231, 233, 235, 236, 238, 240,
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242, 243, 245, 247, 249, 251, 252, 254,
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};
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void AdlibSoundDriver::adlib_playnote(int channel, int note) {
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byte old,oct,notex;
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int note2;
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int i;
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note2 = (note>>7) - 4;
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oct = octave_numbers[note2]<<2;
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notex = note_numbers[note2];
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old = adlib_read(channel + 0xB0);
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if (old&0x20) {
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old &= ~0x20;
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if (oct > old) {
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if (notex < 6) {
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notex += 12;
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oct -= 4;
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}
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} else if (oct < old) {
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if (notex > 11) {
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notex -= 12;
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oct += 4;
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}
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}
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}
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i = (notex<<3) + ((note>>4)&0x7);
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adlib_write(channel + 0xA0, note_to_f_num[i]);
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adlib_write(channel + 0xB0, oct|0x20);
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}
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void AdlibSoundDriver::adlib_note_on(int chan, byte note, int mod) {
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int code;
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assert(chan>=0 && chan<9);
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code = (note<<7) + mod;
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curnote_table[chan] = code;
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adlib_playnote(chan, channel_table_2[chan] + code);
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}
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void AdlibSoundDriver::adlib_note_on_ex(int chan, byte note, int mod) {
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int code;
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assert(chan>=0 && chan<9);
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code = (note<<7) + mod;
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curnote_table[chan] = code;
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channel_table_2[chan] = 0;
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adlib_playnote(chan, code);
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}
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void AdlibSoundDriver::adlib_key_onoff(int channel) {
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byte val;
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byte port = channel + 0xB0;
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assert(channel>=0 && channel<9);
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val = adlib_read(port);
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adlib_write(port, val&~0x20);
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adlib_write(port, val|0x20);
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}
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void AdlibSoundDriver::adlib_setup_channel(int chan, Instrument *instr, byte vol_1, byte vol_2) {
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byte port;
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assert(chan>=0 && chan<9);
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port = channel_mappings[chan];
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adlib_write(port + 0x20, instr->flags_1);
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adlib_write(port + 0x40, (instr->oplvl_1|0x3F) - vol_1);
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adlib_write(port + 0x60, ~instr->atdec_1);
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adlib_write(port + 0x80, ~instr->sustrel_1);
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adlib_write(port + 0xE0, instr->waveform_1);
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port = channel_mappings_2[chan];
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adlib_write(port + 0x20, instr->flags_2);
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adlib_write(port + 0x40, (instr->oplvl_2|0x3F) - vol_2);
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adlib_write(port + 0x60, ~instr->atdec_2);
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adlib_write(port + 0x80, ~instr->sustrel_2);
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adlib_write(port + 0xE0, instr->waveform_2);
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adlib_write((byte)chan + 0xC0, instr->feedback);
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}
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int AdlibSoundDriver::adlib_read_param(int chan, byte param) {
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const AdlibSetParams *as;
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byte val;
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byte port;
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assert(chan>=0 && chan<9);
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if (param <= 12) {
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port = channel_mappings_2[chan];
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} else if (param <= 25) {
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param -= 13;
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port = channel_mappings[chan];
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} else if (param <= 27) {
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param -= 13;
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port = chan;
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} else if (param==28) {
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return 0xF;
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} else if (param==29) {
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return 0x17F;
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} else {
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return 0;
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}
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as = &adlib_setparam_table[param];
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val = adlib_read(port + as->a);
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val &= as->c;
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val >>= as->b;
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if (as->d)
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val = as->d - val;
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return val;
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}
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void AdlibSoundDriver::generate_samples(int16 *data, int len) {
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int step;
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if (!_opl) {
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memset(data, 0, len*sizeof(int16));
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return;
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}
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do {
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step = len;
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if (step > _next_tick)
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step = _next_tick;
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YM3812UpdateOne(_opl,data,step);
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if(!(_next_tick -= step)) {
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_se->on_timer();
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reset_tick();
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}
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data += step;
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} while (len-=step);
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}
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void AdlibSoundDriver::reset_tick() {
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_next_tick = 88;
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}
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void AdlibSoundDriver::on_timer() {
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MidiChannelAdl *mc;
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int i;
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_adlib_timer_counter += 0xD69;
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while (_adlib_timer_counter >= 0x411B) {
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_adlib_timer_counter -= 0x411B;
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mc = _midi_channels;
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for (i=0; i!=ARRAYSIZE(_midi_channels); i++,mc++) {
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if (!mc->_part)
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continue;
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if (mc->_duration && (mc->_duration -= 0x11) <= 0) {
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mc_off(mc);
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return;
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}
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if (mc->_s10a.active) {
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mc_inc_stuff(mc, &mc->_s10a, &mc->_s11a);
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}
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if (mc->_s10b.active) {
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mc_inc_stuff(mc, &mc->_s10b, &mc->_s11b);
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}
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}
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}
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}
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const byte param_table_1[16] = {
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29,28,27,0,
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3,4,7,8,
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13,16,17,20,
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21,30,31,0
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};
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const uint16 param_table_2[16] = {
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0x2FF,0x1F,0x7,0x3F,
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0x0F,0x0F,0x0F,0x3,
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0x3F,0x0F,0x0F,0x0F,
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0x3,0x3E,0x1F, 0
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};
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static const uint16 num_steps_table[] = {
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1, 2, 4, 5,
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6, 7, 8, 9,
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10, 12, 14, 16,
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18, 21, 24, 30,
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36, 50, 64, 82,
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100, 136, 160, 192,
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240, 276, 340, 460,
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600, 860, 1200, 1600
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};
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int AdlibSoundDriver::random_nr(int a) {
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static byte _rand_seed = 1;
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if (_rand_seed&1) {
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_rand_seed>>=1;
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_rand_seed ^= 0xB8;
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} else {
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_rand_seed>>=1;
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}
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return _rand_seed * a >> 8;
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}
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void AdlibSoundDriver::struct10_setup(Struct10 *s10) {
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int b,c,d,e,f,g,h;
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byte t;
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b = s10->unk3;
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f = s10->active - 1;
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t = s10->table_a[f];
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e = num_steps_table[lookup_table[t&0x7F][b]];
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if (t&0x80) {
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e = random_nr(e);
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}
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if (e==0)
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e++;
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s10->num_steps = s10->speed_lo_max = e;
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if (f != 2) {
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c = s10->param;
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g = s10->start_value;
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t = s10->table_b[f];
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d = lookup_volume(c, (t&0x7F) - 31);
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if (t&0x80) {
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d = random_nr(d);
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}
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if (d+g > c) {
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h = c - g;
|
|
} else {
|
|
h = d;
|
|
if (d+g<0)
|
|
h = -g;
|
|
}
|
|
h -= s10->cur_val;
|
|
} else {
|
|
h = 0;
|
|
}
|
|
|
|
s10->speed_hi = h / e;
|
|
if (h<0) {
|
|
h = -h;
|
|
s10->direction = -1;
|
|
} else {
|
|
s10->direction = 1;
|
|
}
|
|
|
|
s10->speed_lo = h % e;
|
|
s10->speed_lo_counter = 0;
|
|
}
|
|
|
|
byte AdlibSoundDriver::struct10_ontimer(Struct10 *s10, Struct11 *s11) {
|
|
byte result = 0;
|
|
int i;
|
|
|
|
if (s10->count && (s10->count-=17)<=0) {
|
|
s10->active = 0;
|
|
return 0;
|
|
}
|
|
|
|
i = s10->cur_val + s10->speed_hi;
|
|
s10->speed_lo_counter += s10->speed_lo;
|
|
if (s10->speed_lo_counter >= s10->speed_lo_max) {
|
|
s10->speed_lo_counter -= s10->speed_lo_max;
|
|
i += s10->direction;
|
|
}
|
|
if (s10->cur_val != i || s10->modwheel != s10->modwheel_last) {
|
|
s10->cur_val = i;
|
|
s10->modwheel_last = s10->modwheel;
|
|
i = lookup_volume(i, s10->modwheel_last);
|
|
if (i != s11->modify_val) {
|
|
s11->modify_val = i;
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
if (!--s10->num_steps) {
|
|
s10->active++;
|
|
if (s10->active > 4) {
|
|
if (s10->loop) {
|
|
s10->active = 1;
|
|
result |= 2;
|
|
struct10_setup(s10);
|
|
} else {
|
|
s10->active = 0;
|
|
}
|
|
} else {
|
|
struct10_setup(s10);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void AdlibSoundDriver::struct10_init(Struct10 *s10, InstrumentExtra *ie) {
|
|
s10->active = 1;
|
|
s10->cur_val = 0;
|
|
s10->modwheel_last = 31;
|
|
s10->count = ie->a;
|
|
if (s10->count)
|
|
s10->count *= 63;
|
|
s10->table_a[0] = ie->b;
|
|
s10->table_a[1] = ie->d;
|
|
s10->table_a[2] = ie->f;
|
|
s10->table_a[3] = ie->g;
|
|
|
|
s10->table_b[0] = ie->c;
|
|
s10->table_b[1] = ie->e;
|
|
s10->table_b[2] = 0;
|
|
s10->table_b[3] = ie->h;
|
|
|
|
struct10_setup(s10);
|
|
}
|
|
|
|
void AdlibSoundDriver::mc_init_stuff(MidiChannelAdl *mc, Struct10 *s10, Struct11 *s11, byte flags, InstrumentExtra *ie) {
|
|
Part *part = mc->_part;
|
|
|
|
s11->modify_val = 0;
|
|
s11->flag0x40 = flags & 0x40;
|
|
s10->loop = flags & 0x20;
|
|
s11->flag0x10 = flags & 0x10;
|
|
s11->param = param_table_1[flags&0xF];
|
|
s10->param = param_table_2[flags&0xF];
|
|
s10->unk3 = 31;
|
|
if (s11->flag0x40) {
|
|
s10->modwheel = part->_modwheel>>2;
|
|
} else {
|
|
s10->modwheel = 31;
|
|
}
|
|
|
|
switch(s11->param) {
|
|
case 0:
|
|
s10->start_value = mc->_vol_2;
|
|
break;
|
|
case 13:
|
|
s10->start_value = mc->_vol_1;
|
|
break;
|
|
case 30:
|
|
s10->start_value = 31;
|
|
s11->s10->modwheel = 0;
|
|
break;
|
|
case 31:
|
|
s10->start_value = 0;
|
|
s11->s10->unk3 = 0;
|
|
break;
|
|
default:
|
|
s10->start_value = part->_drv->adlib_read_param(mc->_channel, s11->param);
|
|
}
|
|
|
|
struct10_init(s10, ie);
|
|
}
|
|
|
|
void AdlibSoundDriver::mc_inc_stuff(MidiChannelAdl *mc, Struct10 *s10, Struct11 *s11) {
|
|
byte code;
|
|
Part *part= mc->_part;
|
|
|
|
code = struct10_ontimer(s10,s11);
|
|
|
|
if (code&1) {
|
|
switch(s11->param) {
|
|
case 0:
|
|
mc->_vol_2 = s10->start_value + s11->modify_val;
|
|
part->_drv->adlib_set_param(mc->_channel, 0, volume_table[lookup_table[mc->_vol_2][part->_vol_eff>>2]]);
|
|
break;
|
|
case 13:
|
|
mc->_vol_1 = s10->start_value + s11->modify_val;
|
|
if (mc->_twochan) {
|
|
part->_drv->adlib_set_param(mc->_channel, 13, volume_table[lookup_table[mc->_vol_1][part->_vol_eff>>2]]);
|
|
} else {
|
|
part->_drv->adlib_set_param(mc->_channel, 13, mc->_vol_1);
|
|
}
|
|
break;
|
|
case 30:
|
|
s11->s10->modwheel = (char)s11->modify_val;
|
|
break;
|
|
case 31:
|
|
s11->s10->unk3 = (char)s11->modify_val;
|
|
break;
|
|
default:
|
|
part->_drv->adlib_set_param(mc->_channel, s11->param, s10->start_value + s11->modify_val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (code&2 && s11->flag0x10)
|
|
part->_drv->adlib_key_onoff(mc->_channel);
|
|
}
|
|
|
|
void AdlibSoundDriver::part_changed(Part *part,byte what) {
|
|
MidiChannelAdl *mc;
|
|
|
|
if (what & pcProgram) {
|
|
if (part->_program < 32) {
|
|
part_set_instrument(part, &_glob_instr[part->_program]);
|
|
}
|
|
}
|
|
|
|
if (what & pcMod) {
|
|
for(mc=part->_mc->adl(); mc; mc=mc->_next) {
|
|
adlib_note_on(mc->_channel, mc->_note + part->_transpose_eff, part->_pitchbend + part->_detune_eff);
|
|
}
|
|
}
|
|
|
|
if (what & pcVolume) {
|
|
for(mc=part->_mc->adl(); mc; mc=mc->_next) {
|
|
adlib_set_param(mc->_channel, 0, volume_table[lookup_table[mc->_vol_2][part->_vol_eff>>2]]);
|
|
if (mc->_twochan) {
|
|
adlib_set_param(mc->_channel, 13, volume_table[lookup_table[mc->_vol_1][part->_vol_eff>>2]]);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (what & pcPedal) {
|
|
if (!part->_pedal) {
|
|
for(mc=(MidiChannelAdl*)part->_mc; mc; mc=mc->_next) {
|
|
if (mc->_waitforpedal)
|
|
mc_off(mc);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (what & pcModwheel) {
|
|
for(mc=(MidiChannelAdl*)part->_mc; mc; mc=mc->_next) {
|
|
if (mc->_s10a.active && mc->_s11a.flag0x40)
|
|
mc->_s10a.modwheel = part->_modwheel>>2;
|
|
if (mc->_s10b.active && mc->_s11b.flag0x40)
|
|
mc->_s10b.modwheel = part->_modwheel>>2;
|
|
}
|
|
}
|
|
}
|
|
|
|
void AdlibSoundDriver::mc_key_on(MidiChannel *mc2, byte note, byte velocity) {
|
|
MidiChannelAdl *mc = (MidiChannelAdl*)mc2;
|
|
Part *part = mc->_part;
|
|
Instrument *instr = &_part_instr[part->_slot];
|
|
int c;
|
|
byte vol_1,vol_2;
|
|
|
|
mc->_twochan = instr->feedback&1;
|
|
mc->_note = note;
|
|
mc->_waitforpedal = false;
|
|
mc->_duration = instr->duration;
|
|
if (mc->_duration != 0)
|
|
mc->_duration *= 63;
|
|
|
|
vol_1 = (instr->oplvl_1&0x3F) + lookup_table[velocity>>1][instr->waveform_1>>2];
|
|
if (vol_1 > 0x3F)
|
|
vol_1 = 0x3F;
|
|
mc->_vol_1 = vol_1;
|
|
|
|
vol_2 = (instr->oplvl_2&0x3F) + lookup_table[velocity>>1][instr->waveform_2>>2];
|
|
if (vol_2 > 0x3F)
|
|
vol_2 = 0x3F;
|
|
mc->_vol_2 = vol_2;
|
|
|
|
c = part->_vol_eff >> 2;
|
|
|
|
vol_2 = volume_table[lookup_table[vol_2][c]];
|
|
if (mc->_twochan)
|
|
vol_1 = volume_table[lookup_table[vol_1][c]];
|
|
|
|
adlib_setup_channel(mc->_channel, instr, vol_1, vol_2);
|
|
adlib_note_on_ex(mc->_channel, part->_transpose_eff + note, part->_detune_eff + part->_pitchbend);
|
|
|
|
if (instr->flags_a & 0x80) {
|
|
mc_init_stuff(mc, &mc->_s10a, &mc->_s11a, instr->flags_a, &instr->extra_a);
|
|
} else {
|
|
mc->_s10a.active = 0;
|
|
}
|
|
|
|
if (instr->flags_b & 0x80) {
|
|
mc_init_stuff(mc, &mc->_s10b, &mc->_s11b, instr->flags_b, &instr->extra_b);
|
|
} else {
|
|
mc->_s10b.active = 0;
|
|
}
|
|
}
|
|
|
|
void AdlibSoundDriver::set_instrument(uint slot, byte *data) {
|
|
if (slot < 32) {
|
|
memcpy(&_glob_instr[slot], data, sizeof(Instrument));
|
|
}
|
|
}
|
|
|
|
|
|
void AdlibSoundDriver::link_mc(Part *part, MidiChannelAdl *mc) {
|
|
mc->_part = part;
|
|
mc->_next = (MidiChannelAdl*)part->_mc;
|
|
part->_mc = mc;
|
|
mc->_prev = NULL;
|
|
|
|
if (mc->_next)
|
|
mc->_next->_prev = mc;
|
|
}
|
|
|
|
void AdlibSoundDriver::part_key_on(Part *part, byte note, byte velocity) {
|
|
MidiChannelAdl *mc;
|
|
|
|
mc = allocate_midichan(part->_pri_eff);
|
|
if (!mc)
|
|
return;
|
|
|
|
link_mc(part, mc);
|
|
mc_key_on(mc,note, velocity);
|
|
}
|
|
|
|
void AdlibSoundDriver::part_key_off(Part *part, byte note) {
|
|
MidiChannelAdl *mc;
|
|
|
|
for(mc=(MidiChannelAdl*)part->_mc; mc; mc=mc->_next) {
|
|
if (mc->_note==note) {
|
|
if (part->_pedal)
|
|
mc->_waitforpedal = true;
|
|
else
|
|
mc_off(mc);
|
|
}
|
|
}
|
|
}
|
|
|
|
struct AdlibInstrSetParams {
|
|
byte param;
|
|
byte shl;
|
|
byte mask;
|
|
};
|
|
|
|
#define MKLINE(_a_,_b_,_c_) { (int)&((Instrument*)0)->_a_, _b_, ((1<<(_c_))-1)<<(_b_) }
|
|
static const AdlibInstrSetParams adlib_instr_params[69] = {
|
|
MKLINE(oplvl_2,0,6),
|
|
MKLINE(waveform_2,2,5),
|
|
MKLINE(oplvl_2,6,2),
|
|
MKLINE(flags_2,0,4),
|
|
MKLINE(atdec_2,4,4),
|
|
MKLINE(atdec_2,0,4),
|
|
MKLINE(sustrel_2,4,4),
|
|
MKLINE(sustrel_2,0,4),
|
|
MKLINE(waveform_2,0,2),
|
|
MKLINE(flags_2,7,1),
|
|
MKLINE(flags_2,6,1),
|
|
MKLINE(flags_2,5,1),
|
|
MKLINE(flags_2,4,1),
|
|
|
|
MKLINE(oplvl_1,0,6),
|
|
MKLINE(waveform_1,2,5),
|
|
MKLINE(oplvl_1,6,2),
|
|
MKLINE(flags_1,0,4),
|
|
MKLINE(atdec_1,4,4),
|
|
MKLINE(atdec_1,0,4),
|
|
MKLINE(sustrel_1,4,4),
|
|
MKLINE(sustrel_1,0,4),
|
|
MKLINE(waveform_1,0,2),
|
|
MKLINE(flags_1,7,1),
|
|
MKLINE(flags_1,6,1),
|
|
MKLINE(flags_1,5,1),
|
|
MKLINE(flags_1,4,1),
|
|
|
|
MKLINE(feedback,0,1),
|
|
MKLINE(feedback,1,3),
|
|
|
|
MKLINE(flags_a,7,1),
|
|
MKLINE(flags_a,6,1),
|
|
MKLINE(flags_a,5,1),
|
|
MKLINE(flags_a,4,1),
|
|
MKLINE(flags_a,0,4),
|
|
MKLINE(extra_a.a,0,8),
|
|
MKLINE(extra_a.b,0,7),
|
|
MKLINE(extra_a.c,0,7),
|
|
MKLINE(extra_a.d,0,7),
|
|
MKLINE(extra_a.e,0,7),
|
|
MKLINE(extra_a.f,0,7),
|
|
MKLINE(extra_a.g,0,7),
|
|
MKLINE(extra_a.h,0,7),
|
|
MKLINE(extra_a.b,7,1),
|
|
MKLINE(extra_a.c,7,1),
|
|
MKLINE(extra_a.d,7,1),
|
|
MKLINE(extra_a.e,7,1),
|
|
MKLINE(extra_a.f,7,1),
|
|
MKLINE(extra_a.g,7,1),
|
|
MKLINE(extra_a.h,7,1),
|
|
|
|
MKLINE(flags_b,7,1),
|
|
MKLINE(flags_b,6,1),
|
|
MKLINE(flags_b,5,1),
|
|
MKLINE(flags_b,4,1),
|
|
MKLINE(flags_b,0,4),
|
|
MKLINE(extra_b.a,0,8),
|
|
MKLINE(extra_b.b,0,7),
|
|
MKLINE(extra_b.c,0,7),
|
|
MKLINE(extra_b.d,0,7),
|
|
MKLINE(extra_b.e,0,7),
|
|
MKLINE(extra_b.f,0,7),
|
|
MKLINE(extra_b.g,0,7),
|
|
MKLINE(extra_b.h,0,7),
|
|
MKLINE(extra_b.b,7,1),
|
|
MKLINE(extra_b.c,7,1),
|
|
MKLINE(extra_b.d,7,1),
|
|
MKLINE(extra_b.e,7,1),
|
|
MKLINE(extra_b.f,7,1),
|
|
MKLINE(extra_b.g,7,1),
|
|
MKLINE(extra_b.h,7,1),
|
|
|
|
MKLINE(duration,0,8),
|
|
};
|
|
#undef MKLINE
|
|
|
|
void AdlibSoundDriver::part_set_param(Part *part, byte param, int value) {
|
|
const AdlibInstrSetParams *sp = &adlib_instr_params[param];
|
|
byte *p = (byte*)&_part_instr[part->_slot] + sp->param;
|
|
*p = (*p&~sp->mask) | (value<<sp->shl);
|
|
|
|
if (param < 28) {
|
|
MidiChannelAdl *mc;
|
|
|
|
for(mc=(MidiChannelAdl*)part->_mc; mc; mc=mc->_next) {
|
|
adlib_set_param(mc->_channel, param, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AdlibSoundDriver::part_off(Part *part) {
|
|
MidiChannelAdl *mc = (MidiChannelAdl*)part->_mc;
|
|
part->_mc = NULL;
|
|
for(; mc; mc=mc->_next) {
|
|
mc_off(mc);
|
|
}
|
|
}
|
|
|
|
void AdlibSoundDriver::mc_off(MidiChannel *mc2) {
|
|
MidiChannelAdl *mc = (MidiChannelAdl*)mc2, *tmp;
|
|
|
|
adlib_key_off(mc->_channel);
|
|
|
|
tmp = mc->_prev;
|
|
|
|
if (mc->_next)
|
|
mc->_next->_prev = tmp;
|
|
if (tmp)
|
|
tmp->_next = mc->_next;
|
|
else
|
|
mc->_part->_mc = mc->_next;
|
|
mc->_part = NULL;
|
|
}
|
|
|
|
void AdlibSoundDriver::part_set_instrument(Part *part, Instrument *instr) {
|
|
Instrument *i = &_part_instr[part->_slot];
|
|
memcpy(i, instr, sizeof(Instrument));
|
|
}
|
|
|
|
int AdlibSoundDriver::part_update_active(Part *part,uint16 *active) {
|
|
uint16 bits;
|
|
int count = 0;
|
|
MidiChannelAdl *mc;
|
|
|
|
bits = 1<<part->_chan;
|
|
|
|
for(mc=part->_mc->adl(); mc; mc=mc->_next) {
|
|
if (!(active[mc->_note] & bits)) {
|
|
active[mc->_note] |= bits;
|
|
count++;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
#endif
|