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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.
*
* $URL$
* $Id$
*
*/
#ifdef ENABLE_SCI32
#include "sci/video/vmd_decoder.h"
#include "common/endian.h"
#include "common/util.h"
#include "common/stream.h"
#include "common/system.h"
#include "graphics/dither.h"
#include "sound/mixer.h"
#include "sound/audiostream.h"
namespace Sci {
VMDDecoder::VMDDecoder(Audio::Mixer *mixer) : _mixer(mixer) {
_vmdDecoder = new Graphics::Vmd(new Graphics::PaletteLUT(5, Graphics::PaletteLUT::kPaletteYUV));
_surface = 0;
_dirtyPalette = false;
_fileStream = 0;
}
VMDDecoder::~VMDDecoder() {
close();
}
bool VMDDecoder::load(Common::SeekableReadStream &stream) {
close();
if (!_vmdDecoder->load(stream))
return false;
_fileStream = &stream;
if (_vmdDecoder->getFeatures() & Graphics::CoktelVideo::kFeaturesPalette)
loadPaletteFromVMD();
if (_vmdDecoder->getFeatures() & Graphics::CoktelVideo::kFeaturesSound)
_vmdDecoder->enableSound(*_mixer);
if (_vmdDecoder->hasExtraData())
warning("This VMD video has extra embedded data, which is currently not handled");
_surface = new Graphics::Surface();
_surface->create(_vmdDecoder->getWidth(), _vmdDecoder->getHeight(), 1);
_vmdDecoder->setVideoMemory((byte *)_surface->pixels, _surface->w, _surface->h);
return true;
}
void VMDDecoder::close() {
if (!_fileStream)
return;
_vmdDecoder->unload();
delete _fileStream;
_fileStream = 0;
_surface->free();
delete _surface;
_surface = 0;
reset();
}
Graphics::Surface *VMDDecoder::decodeNextFrame() {
Graphics::CoktelVideo::State state = _vmdDecoder->nextFrame();
if (state.flags & Graphics::CoktelVideo::kStatePalette)
loadPaletteFromVMD();
if (_curFrame == -1)
_startTime = g_system->getMillis();
_curFrame++;
return _surface;
}
void VMDDecoder::loadPaletteFromVMD() {
const byte *pal = _vmdDecoder->getPalette();
for (int i = 0; i < 256; i++) {
_palette[i * 3 + 0] = pal[i * 3 + 0] << 2;
_palette[i * 3 + 1] = pal[i * 3 + 1] << 2;
_palette[i * 3 + 2] = pal[i * 3 + 2] << 2;
}
_dirtyPalette = true;
}
} // End of namespace Graphics
#endif
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