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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001/2002 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include <stdafx.h>
#include "common/util.h"
#include "scumm_renderer.h"
#include "channel.h"
#include "mixer.h"
#include "sound/mixer.h"
#include "scumm/scumm.h"
#include "scumm/sound.h"
class ScummMixer : public Mixer {
private:
SoundMixer * _mixer; //!< pointer to the SoundMixer instance
struct {
int id;
_Channel * chan;
bool first;
int mixer_index;
} _channels[SoundMixer::NUM_CHANNELS]; //!< The map of track and channels
int _nextIndex;
public:
ScummMixer(SoundMixer *);
virtual ~ScummMixer();
bool init();
_Channel * findChannel(int32 track);
bool addChannel(_Channel * c);
bool handleFrame();
bool stop();
bool update();
};
ScummMixer::ScummMixer(SoundMixer * m) : _mixer(m), _nextIndex(0) {
for(int32 i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
_channels[i].id = -1;
_channels[i].chan = 0;
_channels[i].first = true;
}
}
ScummMixer::~ScummMixer() {
}
bool ScummMixer::init() {
debug(9, "ScummMixer::init()");
return true;
}
_Channel * ScummMixer::findChannel(int32 track) {
debug(9, "scumm_mixer::findChannel(%d)", track);
for(int32 i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
if(_channels[i].id == track)
return _channels[i].chan;
}
return 0;
}
bool ScummMixer::addChannel(_Channel * c) {
int32 track = c->getTrackIdentifier();
int32 i;
debug(9, "ScummMixer::addChannel(%d)", track);
for(i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
if(_channels[i].id == track)
warning("mixer::addChannel(%d) : channel already exist !", track);
}
if(_nextIndex >= SoundMixer::NUM_CHANNELS) _nextIndex = 0;
for(i = _nextIndex; i < SoundMixer::NUM_CHANNELS; i++) {
if(_channels[i].chan == 0 || _channels[i].id == -1) {
_channels[i].chan = c;
_channels[i].id = track;
_channels[i].first = true;
_nextIndex = i + 1;
return true;
}
}
for(i = 0; i < _nextIndex; i++) {
if(_channels[i].chan == 0 || _channels[i].id == -1) {
_channels[i].chan = c;
_channels[i].id = track;
_channels[i].first = true;
_nextIndex = i + 1;
return true;
}
}
fprintf(stderr, "_nextIndex == %d\n", _nextIndex);
for(i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
fprintf(stderr, "channel %d : %p(%d, %d) %d %d\n", i, _channels[i].chan,
_channels[i].chan ? _channels[i].chan->getTrackIdentifier() : -1,
_channels[i].chan ? _channels[i].chan->isTerminated() : 1,
_channels[i].first, _channels[i].mixer_index);
}
error("mixer::add_channel() : no more channel available");
return false;
}
bool ScummMixer::handleFrame() {
debug(9, "ScummMixer::handleFrame()");
for(int i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
if(_channels[i].id != -1) {
debug(9, "updating channel %d (%p)", _channels[i].id, _channels[i].chan);
if(_channels[i].chan->isTerminated()) {
debug(9, "channel %d has terminated (%p)", _channels[i].id, _channels[i].chan);
delete _channels[i].chan;
_channels[i].id = -1;
_channels[i].chan = 0;
} else {
int32 rate;
bool stereo, is_short;
_channels[i].chan->getParameters(rate, stereo, is_short);
int32 size = _channels[i].chan->availableSoundData();
debug(9, "channel %d : %d, %s, %d bits, %d", _channels[i].id, rate, stereo ? "stereo" : "mono", is_short ? 16 : 8, size);
int32 flags = stereo ? SoundMixer::FLAG_STEREO : 0;
if(is_short) {
// FIXME this is one more data copy... we could get rid of it...
short * data = new int16[size * (stereo ? 2 : 1) * 2];
_channels[i].chan->getSoundData(data, size);
if(_channels[i].chan->getRate() == 11025) size *= 2;
size *= stereo ? 4 : 2;
// append to _sound
if(_channels[i].first) {
_channels[i].mixer_index = _mixer->playStream(NULL, -1, data, size, rate, flags | SoundMixer::FLAG_16BITS);
debug(5, "channel %d bound to mixer_index %d", _channels[i].id, _channels[i].mixer_index);
_channels[i].first = false;
} else {
_mixer->append(_channels[i].mixer_index, data, size, rate, flags | SoundMixer::FLAG_16BITS);
}
delete []data;
} else {
int8 * data = new int8[size * (stereo ? 2 : 1) * 2];
_channels[i].chan->getSoundData(data, size);
if(_channels[i].chan->getRate() == 11025) size *= 2;
size *= stereo ? 2 : 1;
// append to _sound
if(_channels[i].first) {
_channels[i].mixer_index = _mixer->playStream(NULL, -1, data, size, rate, flags | SoundMixer::FLAG_UNSIGNED);
_channels[i].first = false;
} else {
_mixer->append(_channels[i].mixer_index, data, size, rate, flags | SoundMixer::FLAG_UNSIGNED);
}
delete []data;
}
}
}
}
return true;
}
bool ScummMixer::stop() {
debug(9, "ScummMixer::stop()");
for(int i = 0; i < SoundMixer::NUM_CHANNELS; i++) {
if(_channels[i].id != -1) {
delete _channels[i].chan;
_channels[i].id = -1;
_channels[i].chan = 0;
}
}
//~ _mixer->stopAll();
return true;
}
ScummRenderer::ScummRenderer(Scumm * scumm, uint32 speed) :
_scumm(scumm),
_smixer(0),
_insaneSpeed(speed) {
}
static ScummRenderer * s_renderer;
static void smush_handler(void * engine) {
s_renderer->update();
}
Mixer * ScummRenderer::getMixer() {
if(_smixer == 0) {
_scumm->_sound->pauseBundleMusic(true);
_smixer = new ScummMixer(_scumm->_mixer);
if(!_smixer) error("unable to allocate a smush mixer");
s_renderer = this;
_scumm->_timer->installProcedure(&smush_handler, _insaneSpeed);
}
return _smixer;
}
ScummRenderer::~ScummRenderer() {
_scumm->_insaneState = 0;
_scumm->exitCutscene();
if(_smixer) {
_scumm->_timer->releaseProcedure(&smush_handler);
delete _smixer;
_smixer = 0;
}
_scumm->_sound->pauseBundleMusic(false);
}
bool ScummRenderer::wait(int32 ms) {
while(_wait) {
_scumm->waitForTimer(1);
}
return true;
}
bool ScummRenderer::startDecode(const char * fname, int32 version, int32 nbframes) {
_scumm->_sound->pauseBundleMusic(true);
_scumm->videoFinished = 0;
_scumm->_insaneState = 1;
return true;
}
bool ScummRenderer::setPalette(const Palette & pal) {
int i;
byte palette_colors[1024];
byte *p = palette_colors;
for (i = 0; i < 256; i++, p += 4) {
p[0] = pal[i].red();
p[1] = pal[i].green();
p[2] = pal[i].blue();
p[3] = 0;
}
_scumm->_system->set_palette(palette_colors, 0, 256);
_scumm->setDirtyColors(0, 255);
return BaseRenderer::setPalette(pal); // For compatibility with possible subclass...
}
void ScummRenderer::save(int32 frame) {
int width = MIN(getWidth(), _scumm->_realWidth);
int height = MIN(getHeight(), _scumm->_realHeight);
_scumm->_system->copy_rect((const byte *)data(), getWidth(), 0, 0, width, height);
_scumm->_system->update_screen();
_scumm->processKbd();
_wait = true;
}
bool ScummRenderer::prematureClose() {
return _scumm->videoFinished;
}
bool ScummRenderer::update() {
_wait = false;
return true;
}
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