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/* ScummVM - Scumm Interpreter
* Copyright (C) 2004 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 "common/stdafx.h"
#include "common/file.h"
#include "sword1/animation.h"
#include "sound/audiostream.h"
namespace Sword1 {
AnimationState::AnimationState(Screen *scr, SoundMixer *snd, OSystem *sys)
: BaseAnimationState(snd, sys, 640, 400), _scr(scr) {
}
AnimationState::~AnimationState() {
}
#ifdef BACKEND_8BIT
void AnimationState::setPalette(byte *pal) {
_sys->setPalette(pal, 0, 256);
}
#endif
bool AnimationState::decodeFrame() {
#ifdef USE_MPEG2
mpeg2_state_t state;
const mpeg2_sequence_t *sequence_i;
size_t size = (size_t) -1;
do {
state = mpeg2_parse(decoder);
sequence_i = info->sequence;
switch (state) {
case STATE_BUFFER:
size = mpgfile->read(buffer, BUFFER_SIZE);
mpeg2_buffer(decoder, buffer, buffer + size);
break;
case STATE_SLICE:
case STATE_END:
if (info->display_fbuf) {
/* simple audio video sync code:
* we calculate the actual frame by taking the elapsed audio time and try
* to stay inside +- 1 frame of this calculated frame number by dropping
* frames if we run behind and delaying if we are too fast
*/
/* Avoid deadlock is sound was too far ahead */
if (bgSoundStream && !bgSound.isActive())
return false;
if (checkPaletteSwitch() || (bgSoundStream == NULL) ||
((_snd->getChannelElapsedTime(bgSound) * 12) / 1000 < framenum + 1) ||
frameskipped > 10) {
if (frameskipped > 10) {
warning("force frame %i redraw", framenum);
frameskipped = 0;
}
#ifdef BACKEND_8BIT
_scr->plotYUV(lut, sequence_i->width, sequence_i->height, info->display_fbuf->buf);
#else
plotYUV(lookup, sequence_i->width, sequence_i->height, info->display_fbuf->buf);
_sys->copy_rect_overlay(overlay, MOVIE_WIDTH, 0, 40, MOVIE_WIDTH, MOVIE_HEIGHT);
#endif
if (bgSoundStream) {
while ((_snd->getChannelElapsedTime(bgSound) * 12) / 1000 < framenum)
_sys->delay_msecs(10);
} else {
ticks += 83;
while (_sys->get_msecs() < ticks)
_sys->delay_msecs(10);
}
} else {
warning("dropped frame %i", framenum);
frameskipped++;
}
#ifdef BACKEND_8BIT
buildLookup(palnum + 1, lutcalcnum);
#endif
framenum++;
return true;
}
break;
default:
break;
}
} while (size);
#endif
return false;
}
MoviePlayer::MoviePlayer(Screen *scr, SoundMixer *snd, OSystem *sys)
: _scr(scr), _snd(snd), _sys(sys) {
}
/**
* Plays an animated cutscene.
* @param filename the file name of the cutscene file
*/
void MoviePlayer::play(const char *filename) {
#ifdef USE_MPEG2
AnimationState *anim = new AnimationState(_scr, _snd, _sys);
if (anim->init(filename)) {
while (anim->decodeFrame()) {
#ifndef BACKEND_8BIT
_sys->updateScreen();
#endif
// FIXME: check for ESC and abbort animation be just returning from the function
OSystem::Event event;
while (_sys->poll_event(&event)) {
if ((event.event_code == OSystem::EVENT_KEYDOWN) &&
(event.kbd.keycode == 27)) {
delete anim;
return;
}
if (event.event_code == OSystem::EVENT_QUIT)
_sys->quit();
}
}
}
delete anim;
#endif
}
} // End of namespace Sword2
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