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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 "made/pmvplayer.h"
#include "made/screen.h"
namespace Made {
PmvPlayer::PmvPlayer(MadeEngine *vm, Audio::Mixer *mixer) : _fd(NULL), _vm(vm), _mixer(mixer) {
}
PmvPlayer::~PmvPlayer() {
}
void PmvPlayer::play(const char *filename) {
_abort = false;
_surface = NULL;
_fd = new Common::File();
if (!_fd->open(filename)) {
delete _fd;
return;
}
uint32 chunkType, chunkSize;
readChunk(chunkType, chunkSize); // "MOVE"
readChunk(chunkType, chunkSize); // "MHED"
// TODO: Evaluate header
uint frameDelay = _fd->readUint16LE();
_fd->skip(10);
uint soundFreq = _fd->readUint16LE();
// Note: There seem to be weird sound frequencies in PMV videos.
// Not sure why, but leaving those original frequencies intact
// results to sound being choppy. Therefore, we set them to more
// "common" values here (11025 instead of 11127 and 22050 instead
// of 22254)
if (soundFreq == 11127) soundFreq = 11025;
if (soundFreq == 22254) soundFreq = 22050;
int unk;
for (int i = 0; i < 22; i++) {
unk = _fd->readUint16LE();
debug(2, "%i ", unk);
}
debug(2, "\n");
_mixer->stopAll();
// Read palette
_fd->read(_paletteRGB, 768);
_vm->_screen->setRGBPalette(_paletteRGB);
uint32 frameCount = 0;
uint16 chunkCount = 0;
uint32 soundSize = 0;
uint32 soundChunkOfs = 0, palChunkOfs = 0;
uint32 palSize = 0;
byte *frameData, *audioData, *soundData, *palData, *imageData;
bool firstTime = true;
uint32 soundStartTime = 0, skipFrames = 0;
uint32 frameNum;
uint16 width, height, cmdOffs, pixelOffs, maskOffs, lineSize;
// TODO: Sound can still be a little choppy. A bug in the decoder or -
// perhaps more likely - do we have to implement double buffering to
// get it to work well?
_audioStream = Audio::makeAppendableAudioStream(soundFreq, Audio::Mixer::FLAG_UNSIGNED);
while (!_vm->shouldQuit() && !_abort && !_fd->eos()) {
int32 frameTime = _vm->_system->getMillis();
readChunk(chunkType, chunkSize);
if (_fd->eos())
break;
frameData = new byte[chunkSize];
_fd->read(frameData, chunkSize);
soundChunkOfs = READ_LE_UINT32(frameData + 8);
palChunkOfs = READ_LE_UINT32(frameData + 16);
// Handle audio
if (soundChunkOfs) {
audioData = frameData + soundChunkOfs - 8;
chunkSize = READ_LE_UINT16(audioData + 4);
chunkCount = READ_LE_UINT16(audioData + 6);
debug(1, "chunkCount = %d; chunkSize = %d; total = %d\n", chunkCount, chunkSize, chunkCount * chunkSize);
if (chunkCount > 50) break; // FIXME: this is a hack
soundSize = chunkCount * chunkSize;
soundData = new byte[soundSize];
decompressSound(audioData + 8, soundData, chunkSize, chunkCount);
_audioStream->queueBuffer(soundData, soundSize);
}
// Handle palette
if (palChunkOfs) {
palData = frameData + palChunkOfs - 8;
palSize = READ_LE_UINT32(palData + 4);
decompressPalette(palData + 8, _paletteRGB, palSize);
_vm->_screen->setRGBPalette(_paletteRGB);
}
// Handle video
imageData = frameData + READ_LE_UINT32(frameData + 12) - 8;
frameNum = READ_LE_UINT32(frameData);
width = READ_LE_UINT16(imageData + 8);
height = READ_LE_UINT16(imageData + 10);
cmdOffs = READ_LE_UINT16(imageData + 12);
pixelOffs = READ_LE_UINT16(imageData + 16);
maskOffs = READ_LE_UINT16(imageData + 20);
lineSize = READ_LE_UINT16(imageData + 24);
debug(2, "width = %d; height = %d; cmdOffs = %04X; pixelOffs = %04X; maskOffs = %04X; lineSize = %d\n",
width, height, cmdOffs, pixelOffs, maskOffs, lineSize);
if (!_surface) {
_surface = new Graphics::Surface();
_surface->create(width, height, 1);
}
decompressMovieImage(imageData, *_surface, cmdOffs, pixelOffs, maskOffs, lineSize);
if (firstTime) {
_mixer->playInputStream(Audio::Mixer::kPlainSoundType, &_audioStreamHandle, _audioStream);
soundStartTime = g_system->getMillis();
skipFrames = 0;
firstTime = false;
}
handleEvents();
updateScreen();
delete[] frameData;
if (skipFrames == 0) {
int32 waitTime = (frameCount * frameDelay) -
(g_system->getMillis() - soundStartTime) - (_vm->_system->getMillis() - frameTime);
if (waitTime < 0) {
skipFrames = -waitTime / frameDelay;
warning("Video A/V sync broken, skipping %d frame(s)", skipFrames + 1);
} else if (waitTime > 0)
g_system->delayMillis(waitTime);
} else
skipFrames--;
frameCount++;
}
_audioStream->finish();
_mixer->stopHandle(_audioStreamHandle);
//delete _audioStream;
delete _fd;
delete _surface;
}
void PmvPlayer::readChunk(uint32 &chunkType, uint32 &chunkSize) {
chunkType = _fd->readUint32BE();
chunkSize = _fd->readUint32LE();
debug(2, "ofs = %08X; chunkType = %c%c%c%c; chunkSize = %d\n",
_fd->pos(),
(chunkType >> 24) & 0xFF, (chunkType >> 16) & 0xFF, (chunkType >> 8) & 0xFF, chunkType & 0xFF,
chunkSize);
}
void PmvPlayer::handleEvents() {
Common::Event event;
while (_vm->_system->getEventManager()->pollEvent(event)) {
switch (event.type) {
case Common::EVENT_KEYDOWN:
if (event.kbd.keycode == Common::KEYCODE_ESCAPE)
_abort = true;
break;
default:
break;
}
}
}
void PmvPlayer::updateScreen() {
_vm->_system->copyRectToScreen((const byte*)_surface->pixels, _surface->pitch,
(320 - _surface->w) / 2, (200 - _surface->h) / 2, _surface->w, _surface->h);
_vm->_system->updateScreen();
}
void PmvPlayer::decompressPalette(byte *palData, byte *outPal, uint32 palDataSize) {
byte *palDataEnd = palData + palDataSize;
while (palData < palDataEnd) {
byte count = *palData++;
byte entry = *palData++;
if (count == 255 && entry == 255)
break;
memcpy(&outPal[entry * 3], palData, (count + 1) * 3);
palData += (count + 1) * 3;
}
}
}
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