thirdparty/scummvm
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add adlib music for indy3ega/loom and adlib sfx, patch #770862

Browse source 
svn-id: r9649
This commit is contained in:
Travis Howell 2003-08-12 16:09:41 +00:00
parent fef62655f8
commit b198fbc3bb
4 changed files with 509 additions and 179 deletions
Download patch file Download diff file Expand all files Collapse all files

56
backends/midi/adlib.cpp
View file

@ -618,7 +618,7 @@ private:
void mc_init_stuff(AdlibVoice *voice, Struct10 * s10, Struct11 * s11, byte flags,
InstrumentExtra * ie);
static void struct10_init(Struct10 * s10, InstrumentExtra * ie);
void struct10_init(Struct10 * s10, InstrumentExtra * ie);
static byte struct10_ontimer(Struct10 * s10, Struct11 * s11);
static void struct10_setup(Struct10 * s10);
static int random_nr(int a);
@ -644,10 +644,12 @@ void AdlibPart::send (uint32 b) {
}
void AdlibPart::noteOff(byte note) {
debug (4, "%10d: noteOff(%d)", tick, note);
_owner->part_key_off(this, note);
}
void AdlibPart::noteOn(byte note, byte velocity) {
debug (4, "%10d: noteOn(%d,%d)", tick, note, velocity);
_owner->part_key_on(this, &_part_instr, note, velocity);
}
@ -982,6 +984,7 @@ void MidiDriver_ADLIB::premix_proc(void *param, int16 *buf, uint len) {
void MidiDriver_ADLIB::adlib_write(byte port, byte value) {
if (_adlib_reg_cache[port] == value)
return;
debug (4, "%10d: adlib_write[%x] = %x", tick, port, value);
_adlib_reg_cache[port] = value;
OPLWriteReg(_opl, port, value);
@ -998,7 +1001,6 @@ void MidiDriver_ADLIB::generate_samples(int16 *data, int len) {
_next_tick -= step;
if (!_next_tick) {
tick++;
if (_timer_proc)
(*_timer_proc)(_timer_param);
on_timer();
@ -1021,6 +1023,7 @@ void MidiDriver_ADLIB::on_timer() {
while (_adlib_timer_counter >= 0x411B) {
_adlib_timer_counter -= 0x411B;
voice = _voices;
tick++;
for (i = 0; i != ARRAYSIZE(_voices); i++, voice++) {
if (!voice->_part)
continue;
@ -1064,13 +1067,17 @@ void MidiDriver_ADLIB::mc_inc_stuff(AdlibVoice *voice, Struct10 *s10, Struct11 *
switch (s11->param) {
case 0:
voice->_vol_2 = s10->start_value + s11->modify_val;
adlib_set_param(voice->_channel, 0,
volume_table[lookup_table[voice->_vol_2]
[part->_vol_eff >> 2]]);
if (!_game_SmallHeader) {
adlib_set_param(voice->_channel, 0,
volume_table[lookup_table[voice->_vol_2]
[part->_vol_eff >> 2]]);
} else {
adlib_set_param(voice->_channel, 0, voice->_vol_2);
}
break;
case 13:
voice->_vol_1 = s10->start_value + s11->modify_val;
if (voice->_twochan) {
if (voice->_twochan && !_game_SmallHeader) {
adlib_set_param(voice->_channel, 13,
volume_table[lookup_table[voice->_vol_1]
[part->_vol_eff >> 2]]);
@ -1352,21 +1359,29 @@ void MidiDriver_ADLIB::mc_key_on(AdlibVoice *voice, AdlibInstrument *instr, byte
if (voice->_duration != 0)
voice->_duration *= 63;
vol_1 = (instr->oplvl_1 & 0x3F) + lookup_table[velocity >> 1][instr->waveform_1 >> 2];
if (!_game_SmallHeader)
vol_1 = (instr->oplvl_1 & 0x3F) + lookup_table[velocity >> 1][instr->waveform_1 >> 2];
else
vol_1 = 0x3f - (instr->oplvl_1 & 0x3F);
if (vol_1 > 0x3F)
vol_1 = 0x3F;
voice->_vol_1 = vol_1;
vol_2 = (instr->oplvl_2 & 0x3F) + lookup_table[velocity >> 1][instr->waveform_2 >> 2];
if (!_game_SmallHeader)
vol_2 = (instr->oplvl_2 & 0x3F) + lookup_table[velocity >> 1][instr->waveform_2 >> 2];
else
vol_2 = 0x3f - (instr->oplvl_2 & 0x3F);
if (vol_2 > 0x3F)
vol_2 = 0x3F;
voice->_vol_2 = vol_2;
c = part->_vol_eff >> 2;
vol_2 = volume_table[lookup_table[vol_2][c]];
if (voice->_twochan)
vol_1 = volume_table[lookup_table[vol_1][c]];
if (!_game_SmallHeader) {
vol_2 = volume_table[lookup_table[vol_2][c]];
if (voice->_twochan)
vol_1 = volume_table[lookup_table[vol_1][c]];
}
adlib_setup_channel(voice->_channel, instr, vol_1, vol_2);
adlib_note_on_ex(voice->_channel, part->_transpose_eff + note, part->_detune_eff + (part->_pitchbend * part->_pitchbend_factor >> 6));
@ -1391,22 +1406,14 @@ void MidiDriver_ADLIB::adlib_setup_channel(int chan, AdlibInstrument *instr, byt
port = channel_mappings[chan];
adlib_write(port + 0x20, instr->flags_1);
if (!_game_SmallHeader)
adlib_write(port + 0x40, (instr->oplvl_1 | 0x3F) - vol_1 );
else
adlib_write(port + 0x40, instr->oplvl_1);
adlib_write(port + 0x40, (instr->oplvl_1 | 0x3F) - vol_1 );
adlib_write(port + 0x60, 0xff & (~instr->atdec_1));
adlib_write(port + 0x80, 0xff & (~instr->sustrel_1));
adlib_write(port + 0xE0, instr->waveform_1);
port = channel_mappings_2[chan];
adlib_write(port + 0x20, instr->flags_2);
if (!_game_SmallHeader)
adlib_write(port + 0x40, (instr->oplvl_2 | 0x3F) - vol_2 );
else
adlib_write(port + 0x40, instr->oplvl_2 );
adlib_write(port + 0x40, (instr->oplvl_2 | 0x3F) - vol_2 );
adlib_write(port + 0x60, 0xff & (~instr->atdec_2));
adlib_write(port + 0x80, 0xff & (~instr->sustrel_2));
adlib_write(port + 0xE0, instr->waveform_2);
@ -1464,7 +1471,12 @@ void MidiDriver_ADLIB::mc_init_stuff(AdlibVoice *voice, Struct10 * s10,
void MidiDriver_ADLIB::struct10_init(Struct10 *s10, InstrumentExtra *ie) {
s10->active = 1;
s10->cur_val = 0;
if (!_game_SmallHeader) {
s10->cur_val = 0;
} else {
s10->cur_val = s10->start_value;
s10->start_value = 0;
}
s10->modwheel_last = 31;
s10->count = ie->a;
if (s10->count)