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74 lines
1.9 KiB
C++
74 lines
1.9 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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*/
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#include "common/system.h"
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#include "common/textconsole.h"
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#include "graphics/jpeg.h"
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#include "graphics/surface.h"
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#include "video/codecs/mjpeg.h"
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namespace Common {
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class SeekableReadStream;
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}
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namespace Video {
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JPEGDecoder::JPEGDecoder() : Codec() {
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_jpeg = new Graphics::JPEG();
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_pixelFormat = g_system->getScreenFormat();
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_surface = NULL;
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}
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JPEGDecoder::~JPEGDecoder() {
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delete _jpeg;
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if (_surface) {
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_surface->free();
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delete _surface;
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}
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}
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const Graphics::Surface *JPEGDecoder::decodeImage(Common::SeekableReadStream* stream) {
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if (!_jpeg->read(stream)) {
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warning("Failed to decode JPEG frame");
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return 0;
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}
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if (!_surface) {
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_surface = new Graphics::Surface();
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_surface->create(_jpeg->getWidth(), _jpeg->getHeight(), _pixelFormat);
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}
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Graphics::Surface *frame = _jpeg->getSurface(_pixelFormat);
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assert(frame);
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_surface->copyFrom(*frame);
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frame->free();
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delete frame;
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return _surface;
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}
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} // End of namespace Video
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