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author | Eugene Sandulenko | 2010-10-18 19:17:38 +0000 |
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committer | Eugene Sandulenko | 2010-10-18 19:17:38 +0000 |
commit | 86d650926f9b991b6398e4ad4b0613ac264dfbaa (patch) | |
tree | 5e6791249fa5fce7dd3e1a6406dff4bf720ca085 /engines/lastexpress/data/animation.cpp | |
parent | c92d2bc234f2f73a9629b3622cd5e66c57439cda (diff) | |
download | scummvm-rg350-86d650926f9b991b6398e4ad4b0613ac264dfbaa.tar.gz scummvm-rg350-86d650926f9b991b6398e4ad4b0613ac264dfbaa.tar.bz2 scummvm-rg350-86d650926f9b991b6398e4ad4b0613ac264dfbaa.zip |
LASTEXPRESS: Merge in the engine.
svn-id: r53579
Diffstat (limited to 'engines/lastexpress/data/animation.cpp')
-rw-r--r-- | engines/lastexpress/data/animation.cpp | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/engines/lastexpress/data/animation.cpp b/engines/lastexpress/data/animation.cpp new file mode 100644 index 0000000000..88973c4b0b --- /dev/null +++ b/engines/lastexpress/data/animation.cpp @@ -0,0 +1,300 @@ +/* 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. + * + * $URL$ + * $Id$ + * + */ + +// Based on Deniz Oezmen's code: http://oezmen.eu/ + +#include "lastexpress/data/animation.h" + +#include "lastexpress/data/sequence.h" +#include "lastexpress/data/snd.h" + +#include "lastexpress/debug.h" + +#include "common/events.h" +#include "engines/engine.h" + +namespace LastExpress { + +Animation::Animation() : _stream(NULL), _currentChunk(NULL), _overlay(NULL), _background1(NULL), _background2(NULL), _backgroundCurrent(0), _audio(NULL), _startTime(0), _changed(false), _flag(0) { +} + +Animation::~Animation() { + reset(); +} + +void Animation::reset() { + delete _overlay; + _overlay = NULL; + delete _background1; + _background1 = NULL; + delete _background2; + _background2 = NULL; + delete _audio; + _audio = NULL; + + _backgroundCurrent = 0; + _chunks.clear(); + + _currentChunk = NULL; + + delete _stream; +} + +bool Animation::load(Common::SeekableReadStream *stream, int flag) { + if (!stream) + return false; + + reset(); + + // Keep stream for later decoding of animation + _stream = stream; + + // Read header to get the number of chunks + uint32 numChunks = _stream->readUint32LE(); + debugC(3, kLastExpressDebugGraphics, "Number of chunks in NIS file: %d", numChunks); + + // Check if there is enough data + if (_stream->size() - _stream->pos() < (signed)(numChunks * sizeof(Chunk))) { + debugC(2, kLastExpressDebugGraphics, "NIS file seems to be corrupted!"); + return false; + } + + // Read all the chunks + for (uint32 i = 0; i < numChunks; ++i) { + Chunk chunk; + chunk.type = (ChunkType)_stream->readUint16LE(); + chunk.frame = _stream->readUint16LE(); + chunk.size = _stream->readUint32LE(); + + _chunks.push_back(chunk); + + debugC(9, kLastExpressDebugGraphics, "Chunk Entry: type 0x%.4x, frame=%d, size=%d", chunk.type, chunk.frame, chunk.size); + } + _currentChunk = _chunks.begin(); + _changed = false; + _startTime = g_engine->_system->getMillis(); + + return true; +} + +bool Animation::process() { + if (!_currentChunk) + error("Animation::process - internal error: the current chunk iterator is invalid!"); + + if (_stream == NULL || _chunks.size() == 0) + error("Trying to show an animation before loading data"); + + // TODO: substract the time paused by the GUI + uint32 currentFrame = (uint32)(((float)(g_engine->_system->getMillis() - _startTime)) / 33.33f); + + // Process all chunks until the current frame + while (!_changed && currentFrame > _currentChunk->frame && !hasEnded()) { + switch(_currentChunk->type) { + //TODO: some info chunks are probably subtitle/sync related + case kChunkTypeUnknown1: + case kChunkTypeUnknown2: + case kChunkTypeUnknown5: + debugC(9, kLastExpressDebugGraphics | kLastExpressDebugUnknown, " info chunk: type 0x%.4x (size %d)", _currentChunk->type, _currentChunk->size); + assert (_currentChunk->frame == 0); + //TODO: _currentChunk->size? + break; + + case kChunkTypeAudioInfo: + debugC(9, kLastExpressDebugGraphics, " audio info: %d blocks", _currentChunk->size); + assert (_currentChunk->frame == 0); + //TODO: save the size? + _audio = new AppendableSound(); + break; + + case kChunkTypeUnknown4: + debugC(9, kLastExpressDebugGraphics | kLastExpressDebugUnknown, " info block 4"); + assert (_currentChunk->frame == 0 && _currentChunk->size == 0); + //TODO unknown type of chunk + break; + + case kChunkTypeBackground1: + debugC(9, kLastExpressDebugGraphics, " background frame 1 (%d bytes, frame %d)", _currentChunk->size, _currentChunk->frame); + delete _background1; + _background1 = processChunkFrame(_stream, *_currentChunk); + break; + + case kChunkTypeSelectBackground1: + debugC(9, kLastExpressDebugGraphics, " select background 1"); + assert (_currentChunk->frame == 0 && _currentChunk->size == 0); + _backgroundCurrent = 1; + break; + + case kChunkTypeBackground2: + debugC(9, kLastExpressDebugGraphics, " background frame 2 (%d bytes, frame %d)", _currentChunk->size, _currentChunk->frame); + delete _background2; + _background2 = processChunkFrame(_stream, *_currentChunk); + break; + + case kChunkTypeSelectBackground2: + debugC(9, kLastExpressDebugGraphics, " select background 2"); + assert (_currentChunk->frame == 0 && _currentChunk->size == 0); + _backgroundCurrent = 2; + break; + + case kChunkTypeOverlay: + debugC(9, kLastExpressDebugGraphics, " overlay frame (%d bytes, frame %d)", _currentChunk->size, _currentChunk->frame); + delete _overlay; + _overlay = processChunkFrame(_stream, *_currentChunk); + break; + + case kChunkTypeUpdate: + case kChunkTypeUpdateTransition: + debugC(9, kLastExpressDebugGraphics, " update%s: frame %d", _currentChunk->type == 15 ? "" : " with transition", _currentChunk->frame); + assert (_currentChunk->size == 0); + _changed = true; + break; + + case kChunkTypeAudioData: + debugC(9, kLastExpressDebugGraphics, " audio (%d blocks, %d bytes, frame %d)", _currentChunk->size / _soundBlockSize, _currentChunk->size, _currentChunk->frame); + processChunkAudio(_stream, *_currentChunk); + + // Synchronize the audio by resetting the start time + if (_currentChunk->frame == 0) + _startTime = g_engine->_system->getMillis(); + break; + + case kChunkTypeAudioEnd: + debugC(9, kLastExpressDebugGraphics, " audio end: %d blocks", _currentChunk->frame); + assert (_currentChunk->size == 0); + _audio->finish(); + //TODO: we need to start the linked sound (.LNK) after the audio from the animation ends + break; + + default: + error(" UNKNOWN chunk type=%x frame=%d size=%d", _currentChunk->type, _currentChunk->frame, _currentChunk->size); + break; + } + _currentChunk++; + } + + return true; +} + +bool Animation::hasEnded() { + return _currentChunk == _chunks.end(); +} + +Common::Rect Animation::draw(Graphics::Surface *surface) { + if (!_overlay) + error("Animation::draw - internal error: the current overlay animation frame is invalid!"); + + // Paint the background + if (_backgroundCurrent == 1 && _background1) + _background1->draw(surface); + else if (_backgroundCurrent == 2 && _background2) + _background2->draw(surface); + + // Paint the overlay + _overlay->draw(surface); + + //TODO + return Common::Rect(); +} + +AnimFrame *Animation::processChunkFrame(Common::SeekableReadStream *in, const Chunk &c) const { + assert (c.frame == 0); + + // Create a temporary chunk buffer + Common::MemoryReadStream *str = in->readStream(c.size); + + // Read the frame information + FrameInfo i; + i.read(str, false); + + // Decode the frame + AnimFrame *f = new AnimFrame(str, i); + + // Delete the temporary chunk buffer + delete str; + + return f; +} + +void Animation::processChunkAudio(Common::SeekableReadStream *in, const Chunk &c) { + if (!_audio) + error("Animation::processChunkAudio - internal error: the audio stream is invalid!"); + + // Skip the Snd header, to queue just the audio blocks + uint32 size = c.size; + if ((c.size % 739) != 0) { + // Read Snd header + uint32 header1 = in->readUint32LE(); + uint16 header2 = in->readUint16LE(); + warning("Start ADPCM: %d, %d", header1, header2); + size -= 6; + } + + // Append the current chunk to the Snd + _audio->queueBuffer(in->readStream(size)); +} + +// TODO: this method will probably go away and be integrated in the main loop +void Animation::play() { + while (!hasEnded() && !g_engine->getEventManager()->shouldQuit() && !g_engine->getEventManager()->shouldRTL()) { + process(); + + if (_changed) { + // Create a temporary surface to merge the overlay with the background + Graphics::Surface *s = new Graphics::Surface; + s->create(640, 480, 2); + + draw(s); + + // XXX: Update the screen + g_system->copyRectToScreen((byte *)s->pixels, s->pitch, 0, 0, s->w, s->h); + + // Free the temporary surface + s->free(); + delete s; + + _changed = false; + } + + g_system->updateScreen(); + + //FIXME: implement subtitles + g_engine->_system->delayMillis(20); + + // Handle right-click to interrupt animations + Common::Event ev; + while (g_engine->getEventManager()->pollEvent(ev)) { + if (ev.type == Common::EVENT_RBUTTONUP) { + // Stop audio + if (_audio) + _audio->finish(); + + // TODO start LNK file sound? + return; + } + } + } +} + +} // End of namespace LastExpress |