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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.
*
* $URL$
* $Id$
*
*/
#include "common/system.h"
#include "common/textconsole.h"
#include "graphics/jpeg.h"
#include "graphics/surface.h"
#include "video/codecs/mjpeg.h"
namespace Common {
class SeekableReadStream;
}
namespace Video {
JPEGDecoder::JPEGDecoder() : Codec() {
_jpeg = new Graphics::JPEG();
_pixelFormat = g_system->getScreenFormat();
_surface = NULL;
}
JPEGDecoder::~JPEGDecoder() {
delete _jpeg;
if (_surface) {
_surface->free();
delete _surface;
}
}
const Graphics::Surface *JPEGDecoder::decodeImage(Common::SeekableReadStream* stream) {
if (!_jpeg->read(stream)) {
warning("Failed to decode JPEG frame");
return 0;
}
if (!_surface) {
_surface = new Graphics::Surface();
_surface->create(_jpeg->getWidth(), _jpeg->getHeight(), _pixelFormat);
}
Graphics::Surface *frame = _jpeg->getSurface(_pixelFormat);
assert(frame);
_surface->copyFrom(*frame);
frame->free();
delete frame;
return _surface;
}
} // End of namespace Video
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