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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "sci/tools.h"
#include "sci/sfx/player/new_player.h"
#include "sci/sfx/sequencer.h"
#include "sci/sfx/iterator.h"
#include "sci/sfx/core.h"
#include "common/system.h"
#include "sci/sfx/softseq/pcjr.h"
#include "sci/sfx/softseq/adlib.h"
namespace Sci {
static MidiPlayer *mididrv;
static SongIterator *play_it = NULL;
static Audio::Timestamp wakeup_time;
static Audio::Timestamp current_time;
static uint32 play_pause_diff;
static int play_paused = 0;
static int play_it_done = 0;
static uint32 tempo;
static Common::Mutex *mutex;
static int volume = 15;
static void play_song(SongIterator *it) {
while (play_it && wakeup_time.msecsDiff(current_time) <= 0) {
int delay;
byte buf[8];
int result;
switch ((delay = songit_next(&(play_it),
buf, &result,
IT_READER_MASK_ALL
| IT_READER_MAY_FREE
| IT_READER_MAY_CLEAN))) {
case SI_FINISHED:
delete play_it;
play_it = NULL;
play_it_done = 1;
return;
case SI_IGNORE:
case SI_LOOP:
case SI_RELATIVE_CUE:
case SI_ABSOLUTE_CUE:
break;
case SI_PCM:
sfx_play_iterator_pcm(play_it, 0);
break;
case 0:
static_cast<MidiDriver *>(mididrv)->send(buf[0], buf[1], buf[2]);
break;
default:
wakeup_time = wakeup_time.addFrames(delay);
}
}
}
static void player_tell_synth(int buf_nr, byte *buf) {
byte op1 = (buf_nr < 2 ? 0 : buf[1]);
byte op2 = (buf_nr < 3 ? 0 : buf[2]);
static_cast<MidiDriver *>(mididrv)->send(buf[0], op1, op2);
}
static void player_timer_callback(void *refCon) {
mutex->lock();
if (play_it && !play_it_done && !play_paused) {
play_song(play_it);
}
current_time = current_time.addFrames(1);
mutex->unlock();
}
static void player_void_callback(void) {
}
/* API implementation */
static Common::Error player_set_option(char *name, char *value) {
return Common::kUnknownError;
}
static Common::Error player_init(ResourceManager *resmgr, int expected_latency) {
MidiDriverType musicDriver = MidiDriver::detectMusicDriver(MDT_PCSPK | MDT_ADLIB);
switch(musicDriver) {
case MD_ADLIB:
mididrv = new MidiPlayer_Adlib();
break;
case MD_PCJR:
mididrv = new MidiPlayer_PCJr();
break;
case MD_PCSPK:
mididrv = new MidiPlayer_PCSpeaker();
break;
default:
break;
}
assert(mididrv);
sfx_new_player.polyphony = mididrv->getPolyphony();
tempo = mididrv->getBaseTempo();
uint32 time = g_system->getMillis();
current_time = Audio::Timestamp(time, 1000000 / tempo);
wakeup_time = Audio::Timestamp(time, SFX_TICKS_PER_SEC);
mutex = new Common::Mutex();
mididrv->setTimerCallback(NULL, player_timer_callback);
mididrv->open(resmgr);
mididrv->setVolume(volume);
return Common::kNoError;
}
static Common::Error player_add_iterator(SongIterator *it, uint32 start_time) {
mutex->lock();
SIMSG_SEND(it, SIMSG_SET_PLAYMASK(mididrv->getPlayMask()));
SIMSG_SEND(it, SIMSG_SET_RHYTHM(mididrv->hasRhythmChannel()));
if (play_it == NULL) {
// Resync with clock
current_time = Audio::Timestamp(g_system->getMillis(), 1000000 / tempo);
wakeup_time = Audio::Timestamp(start_time, SFX_TICKS_PER_SEC);
}
play_it = sfx_iterator_combine(play_it, it);
play_it_done = 0;
mutex->unlock();
return Common::kNoError;
}
static Common::Error player_fade_out(void) {
warning("Attempt to fade out - not implemented yet");
return Common::kUnknownError;
}
static Common::Error player_stop(void) {
debug(3, "Player: Stopping song iterator %p", (void *)play_it);
mutex->lock();
delete play_it;
play_it = NULL;
for (int i = 0; i < MIDI_CHANNELS; i++)
static_cast<MidiDriver *>(mididrv)->send(0xb0 + i, SCI_MIDI_CHANNEL_NOTES_OFF, 0);
mutex->unlock();
return Common::kNoError;
}
static Common::Error player_send_iterator_message(const SongIterator::Message &msg) {
mutex->lock();
if (!play_it) {
mutex->unlock();
return Common::kUnknownError;
}
songit_handle_message(&play_it, msg);
mutex->unlock();
return Common::kNoError;
}
static Common::Error player_pause(void) {
mutex->lock();
play_paused = 1;
play_pause_diff = wakeup_time.msecsDiff(current_time);
mididrv->playSwitch(false);
mutex->unlock();
return Common::kNoError;
}
static Common::Error player_resume(void) {
mutex->lock();
wakeup_time = Audio::Timestamp(current_time.msecs() + play_pause_diff, SFX_TICKS_PER_SEC);
mididrv->playSwitch(true);
play_paused = 0;
mutex->unlock();
return Common::kNoError;
}
static Common::Error player_exit(void) {
mididrv->close();
delete mididrv;
delete mutex;
delete play_it;
play_it = NULL;
return Common::kNoError;
}
sfx_player_t sfx_new_player = {
"new",
"0.1",
&player_set_option,
&player_init,
&player_add_iterator,
&player_fade_out,
&player_stop,
&player_send_iterator_message,
&player_pause,
&player_resume,
&player_exit,
&player_void_callback,
&player_tell_synth,
0 /* polyphony */
};
} // End of namespace Sci
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