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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.
*
*/
#include "titanic/support/avi_surface.h"
#include "titanic/support/video_surface.h"
#include "video/avi_decoder.h"
namespace Titanic {
AVISurface::AVISurface(const CResourceKey &key) {
_videoSurface = nullptr;
_field4 = 0;
_field8 = 0;
_currentPos = 0;
_priorFrame = 0;
_streamCount = 0;
_frameInfo = nullptr;
_decoder = new Video::AVIDecoder();
if (!_decoder->loadFile(key.getString()))
error("Could not open video - %s", key.getString().c_str());
}
AVISurface::~AVISurface() {
if (_videoSurface)
_videoSurface->_blitStyleFlag = false;
delete _frameInfo;
delete _decoder;
}
bool AVISurface::play(uint flags, CGameObject *obj) {
if (flags & MOVIE_REVERSE)
return play(_decoder->getFrameCount() - 1, 0, flags, obj);
else
return play(0, _decoder->getFrameCount() - 1, flags, obj);
}
bool AVISurface::play(int startFrame, int endFrame, uint flags, CGameObject *obj) {
if (flags & MOVIE_STOP_PREVIOUS)
stop();
return play(startFrame, endFrame, -1, flags, obj);
}
bool AVISurface::play(int startFrame, int endFrame, int initialFrame, uint flags, CGameObject *obj) {
CMovieRangeInfo *info = new CMovieRangeInfo();
info->_startFrame = startFrame;
info->_endFrame = endFrame;
info->_isReversed = endFrame < startFrame;
info->_isFlag1 = flags & MOVIE_1;
if (obj) {
CMovieEvent *me = new CMovieEvent();
me->_type = MET_MOVIE_END;
me->_startFrame = startFrame;
me->_endFrame = endFrame;
me->_initialFrame = 0;
me->_gameObject = obj;
info->addEvent(me);
}
_movieRangeInfo.push_back(info);
if (_movieRangeInfo.size() == 1) {
changeFrame(initialFrame);
} else {
return true;
}
}
void AVISurface::stop() {
_isPlaying = false;
_decoder->stop();
_movieRangeInfo.destroyContents();
}
bool AVISurface::changeFrame(int frameNumber) {
if (_isPlaying)
return false;
if (frameNumber == -1)
// Default to starting frame of first movie range
frameNumber = _movieRangeInfo.front()->_startFrame;
seekToFrame(frameNumber);
renderFrame();
_isPlaying = true;
return true;
}
void AVISurface::seekToFrame(uint frameNumber) {
_decoder->seekToFrame(frameNumber);
_priorFrame = frameNumber;
}
bool AVISurface::handleEvents(CMovieEventList &events) {
if (!_isPlaying)
return true;
CMovieRangeInfo *info = _movieRangeInfo.front();
_currentPos += info->_isReversed ? -1 : 1;
if ((info->_isReversed && _currentPos < info->_endFrame) ||
(!info->_isReversed && _currentPos > info->_endFrame)) {
if (info->_isFlag1) {
info->getMovieEnd(events);
_movieRangeInfo.remove(info);
delete info;
if (_movieRangeInfo.empty()) {
// NO more ranges, so stop playback
stop();
} else {
// Not empty, so move onto new first one
info = _movieRangeInfo.front();
_currentPos = info->_startFrame;
}
} else {
_currentPos = info->_startFrame;
}
}
if (_isPlaying) {
// SInce movie ranges can change the position in the movie,
// ensure the decoder is kept in sync
seekToFrame(_currentPos);
info->getMovieFrame(events, _currentPos);
return renderFrame();
} else {
return false;
}
}
void AVISurface::setVideoSurface(CVideoSurface *surface) {
_videoSurface = surface;
warning("TODO: Get video track list from video decoder");
}
uint AVISurface::getWidth() const {
return _decoder->getWidth();
}
uint AVISurface::getHeight() const {
return _decoder->getHeight();
}
void AVISurface::setFrame(int frameNumber) {
// If playback was in process, stop it
if (_isPlaying)
stop();
// Ensure the frame number is valid
if (frameNumber >= _decoder->getFrameCount())
frameNumber = _decoder->getFrameCount() - 1;
seekToFrame(frameNumber);
renderFrame();
}
int AVISurface::getFrame() const {
return _decoder->getCurFrame();
}
bool AVISurface::renderFrame() {
// Check there's a frame ready for
assert(_videoSurface);
if (!_decoder->needsUpdate())
return false;
// Get the frame to render, and draw it on the surface
const Graphics::Surface *frame = _decoder->decodeNextFrame();
_videoSurface->blitFrom(Point(0, 0), frame);
return false;
}
bool AVISurface::addEvent(int frameNumber, CGameObject *obj) {
if (!_movieRangeInfo.empty()) {
CMovieRangeInfo *tail = _movieRangeInfo.back();
if (frameNumber == -1)
frameNumber = tail->_startFrame;
CMovieEvent *me = new CMovieEvent();
me->_type = MET_FRAME;
me->_startFrame = 0;
me->_endFrame = 0;
me->_initialFrame = frameNumber;
me->_gameObject = obj;
tail->addEvent(me);
return _movieRangeInfo.size() == 1 && frameNumber == _priorFrame;
}
return false;
}
void AVISurface::setFrameRate(double rate) {
if (rate >= 0.0 && rate <= 100.0) {
_frameRate = rate;
warning("TODO: Frame rate set to %d yet to be implemented", (int)rate);
}
}
void *AVISurface::duplicateFrameInfo() const {
// TODO
return nullptr;
}
} // End of namespace Titanic
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