131 lines
3.5 KiB
C++
131 lines
3.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifdef ENABLE_SCI32
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#include "sci/video/vmd_decoder.h"
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#include "common/archive.h"
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#include "common/endian.h"
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#include "common/util.h"
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#include "common/stream.h"
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#include "common/system.h"
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#include "graphics/dither.h"
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#include "sound/mixer.h"
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#include "sound/audiostream.h"
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namespace Sci {
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VMDDecoder::VMDDecoder(Audio::Mixer *mixer) : _mixer(mixer) {
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_vmdDecoder = new Graphics::Vmd(new Graphics::PaletteLUT(5, Graphics::PaletteLUT::kPaletteYUV));
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}
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VMDDecoder::~VMDDecoder() {
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closeFile();
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}
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uint32 VMDDecoder::getFrameWaitTime() {
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return _vmdDecoder->getFrameWaitTime();
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}
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bool VMDDecoder::loadFile(const char *fileName) {
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closeFile();
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_fileStream = SearchMan.createReadStreamForMember(fileName);
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if (!_fileStream)
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return false;
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if (!_vmdDecoder->load(*_fileStream))
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return false;
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if (_vmdDecoder->getFeatures() & Graphics::CoktelVideo::kFeaturesPalette) {
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getPalette();
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setPalette(_palette);
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}
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if (_vmdDecoder->getFeatures() & Graphics::CoktelVideo::kFeaturesSound)
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_vmdDecoder->enableSound(*_mixer);
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_videoInfo.width = _vmdDecoder->getWidth();
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_videoInfo.height = _vmdDecoder->getHeight();
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_videoInfo.frameCount = _vmdDecoder->getFramesCount();
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_videoInfo.frameRate = _vmdDecoder->getFrameRate();
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_videoInfo.frameDelay = _videoInfo.frameRate * 100;
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_videoInfo.currentFrame = 0;
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_videoInfo.firstframeOffset = 0; // not really necessary for VMDs
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if (_vmdDecoder->hasExtraData())
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warning("This VMD video has extra embedded data, which is currently not handled");
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_videoFrameBuffer = new byte[_videoInfo.width * _videoInfo.height];
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memset(_videoFrameBuffer, 0, _videoInfo.width * _videoInfo.height);
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_vmdDecoder->setVideoMemory(_videoFrameBuffer, _videoInfo.width, _videoInfo.height);
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return true;
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}
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void VMDDecoder::closeFile() {
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if (!_fileStream)
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return;
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_vmdDecoder->unload();
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delete _fileStream;
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_fileStream = 0;
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delete[] _videoFrameBuffer;
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_videoFrameBuffer = 0;
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}
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bool VMDDecoder::decodeNextFrame() {
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if (_videoInfo.currentFrame == 0)
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_videoInfo.startTime = g_system->getMillis();
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Graphics::CoktelVideo::State state = _vmdDecoder->nextFrame();
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if (state.flags & Graphics::CoktelVideo::kStatePalette) {
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getPalette();
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setPalette(_palette);
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}
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return ++_videoInfo.currentFrame < _videoInfo.frameCount;
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}
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void VMDDecoder::getPalette() {
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const byte *pal = _vmdDecoder->getPalette();
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for (int i = 0; i < 256; i++) {
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_palette[i * 3 + 0] = pal[i * 3 + 0] << 2;
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_palette[i * 3 + 1] = pal[i * 3 + 1] << 2;
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_palette[i * 3 + 2] = pal[i * 3 + 2] << 2;
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}
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}
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} // End of namespace Graphics
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#endif
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