/* 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 "toon/movie.h"

namespace Toon {

void ToonstruckSmackerDecoder::handleAudioTrack(byte track, uint32 chunkSize, uint32 unpackedSize) {
	debugC(6, kDebugMovie, "handleAudioTrack(%d, %d, %d)", track, chunkSize, unpackedSize);

	if (track == 1 && chunkSize == 4) {
		/* uint16 width = */ _fileStream->readUint16LE();
		uint16 height = _fileStream->readUint16LE();
		_lowRes = (height == getHeight() / 2);
	} else
		Graphics::SmackerDecoder::handleAudioTrack(track, chunkSize, unpackedSize);
}

bool ToonstruckSmackerDecoder::loadFile(const Common::String &filename, int forcedflags) {
	debugC(1, kDebugMovie, "loadFile(%s, %d)", filename.c_str(), forcedflags);

	_lowRes = false;

	if (Graphics::SmackerDecoder::loadFile(filename)) {
		if (forcedflags & 0x10 || _surface->h == 200) {
			if (_surface) {
				_surface->free();
				delete _surface;
			}
			_surface = new Graphics::Surface();
			_surface->create(640, 400, 1);		
			_header.flags = 4;
		}

		return true;
	}
	

	return false;
}

ToonstruckSmackerDecoder::ToonstruckSmackerDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : Graphics::SmackerDecoder(mixer, soundType) {
	_lowRes = false;
}

// decoder is deallocated with Movie destruction i.e. new ToonstruckSmackerDecoder is needed
Movie::Movie(ToonEngine *vm , ToonstruckSmackerDecoder *decoder) {
	_vm = vm;
	_playing = false;
	_decoder = decoder;
}

Movie::~Movie() {
	delete _decoder;
}

void Movie::init() const {
}

void Movie::play(Common::String video, int32 flags) {
	debugC(1, kDebugMovie, "play(%s, %d)", video.c_str(), flags);

	_playing = true;
	if (flags & 1)
		_vm->getAudioManager()->setMusicVolume(0);
	_decoder->loadFile(video.c_str(), flags);
	playVideo();
	_vm->flushPalette();
	if (flags & 1)
		_vm->getAudioManager()->setMusicVolume(_vm->getAudioManager()->isMusicMuted() ? 0 : 255);
	_decoder->close();
	_playing = false;
}

bool Movie::playVideo() {
	debugC(1, kDebugMovie, "playVideo()");

	while (!_vm->shouldQuit() && !_decoder->endOfVideo()) {
		if (_decoder->needsUpdate()) {
			const Graphics::Surface *frame = _decoder->decodeNextFrame();
			if (frame) {
				if (_decoder->isLowRes()) {
					// handle manually 2x scaling here
					Graphics::Surface* surf = _vm->getSystem()->lockScreen();
					for (int y = 0; y < frame->h/2; y++) {
						memcpy(surf->getBasePtr(0, y*2+0), frame->getBasePtr(0, y), frame->pitch);
						memcpy(surf->getBasePtr(0, y*2+1), frame->getBasePtr(0, y), frame->pitch);
					}
					_vm->getSystem()->unlockScreen();
				} else {
					_vm->getSystem()->copyRectToScreen((byte *)frame->pixels, frame->pitch, 0, 0, frame->w, frame->h);
				}
			}
			_decoder->setSystemPalette();
			_vm->getSystem()->updateScreen();
		}

		Common::Event event;
		while (_vm->getSystem()->getEventManager()->pollEvent(event))
			if ((event.type == Common::EVENT_KEYDOWN && event.kbd.keycode == Common::KEYCODE_ESCAPE) || event.type == Common::EVENT_LBUTTONUP) {
				return false;
			}

		_vm->getSystem()->delayMillis(10);
	}
	return !_vm->shouldQuit();
}

} // End of namespace Toon