diff options
Diffstat (limited to 'engines/composer/composer.cpp')
-rw-r--r-- | engines/composer/composer.cpp | 181 |
1 files changed, 166 insertions, 15 deletions
diff --git a/engines/composer/composer.cpp b/engines/composer/composer.cpp index b2dcc3b36c..3651a49328 100644 --- a/engines/composer/composer.cpp +++ b/engines/composer/composer.cpp @@ -212,7 +212,7 @@ Common::SeekableReadStream *Pipe::getResource(uint32 tag, uint16 id, bool buffer for (uint i = 0; i < res.entries.size(); i++) size += res.entries[i].size; - byte *buffer = new byte[size]; + byte *buffer = (byte *)malloc(size); uint32 offset = 0; for (uint i = 0; i < res.entries.size(); i++) { _stream->seek(res.entries[i].offset, SEEK_SET); @@ -397,15 +397,19 @@ void ComposerEngine::processAnimFrame() { break; case 4: if (entry.word10 && (!data || data != entry.word10)) { - // TODO: erase old sprite - warning("ignoring anim sprite erase (%d)", entry.word10); + debug(4, "anim: erase sprite %d", entry.word10); + removeSprite(data, anim->_id); } if (data) { uint16 x = anim->_stream->readUint16LE(); uint16 y = anim->_stream->readUint16LE(); + Common::Point pos(x, y); anim->_offset += 4; - // TODO: sprite change - warning("ignoring anim sprite draw (%d @ %d,%d)", data, x, y); + uint16 animId = anim->_id; + if (anim->_state == entry.dword0) + animId = 0; + debug(4, "anim: draw sprite %d at (relative) %d,%d", data, x, y); + addSprite(data, animId, entry.word6, anim->_basePos + pos); } break; default: @@ -424,6 +428,33 @@ void ComposerEngine::processAnimFrame() { } } +void ComposerEngine::addSprite(uint16 id, uint16 animId, uint16 zorder, const Common::Point &pos) { + Sprite sprite; + sprite.id = id; + sprite.animId = animId; + sprite.zorder = zorder; + sprite.pos = pos; + + for (Common::List<Sprite>::iterator i = _sprites.begin(); i != _sprites.end(); i++) { + if (sprite.zorder < i->zorder) + continue; + _sprites.insert(i, sprite); + return; + } + _sprites.push_back(sprite); +} + +void ComposerEngine::removeSprite(uint16 id, uint16 animId) { + for (Common::List<Sprite>::iterator i = _sprites.begin(); i != _sprites.end(); i++) { + if (i->id != id) + continue; + if (animId && i->animId != animId) + continue; + i = _sprites.reverse_erase(i); + return; + } +} + ComposerEngine::ComposerEngine(OSystem *syst, const ComposerGameDescription *gameDesc) : Engine(syst), _gameDescription(gameDesc) { _rnd = new Common::RandomSource("composer"); _audioStream = NULL; @@ -471,12 +502,6 @@ Common::Error ComposerEngine::run() { uint frameTime = 1000 / fps; uint32 lastDrawTime = 0; while (!shouldQuit()) { - if (hasResource(ID_BMAP, 1000)) - drawBMAP(1000, 0, 0); - - _system->copyRectToScreen((byte *)_surface.pixels, _surface.pitch, 0, 0, _surface.w, _surface.h); - _system->updateScreen(); - uint32 thisTime = _system->getMillis(); for (uint i = 0; i < _queuedScripts.size(); i++) { QueuedScript &script = _queuedScripts[i]; @@ -494,6 +519,15 @@ Common::Error ComposerEngine::run() { if (lastDrawTime + frameTime <= thisTime) { lastDrawTime += frameTime; + if (hasResource(ID_BMAP, 1000)) + drawBMAP(1000, 0, 0); + for (Common::List<Sprite>::iterator i = _sprites.begin(); i != _sprites.end(); i++) { + drawBMAP(i->id, i->pos.x, i->pos.y); + } + + _system->copyRectToScreen((byte *)_surface.pixels, _surface.pitch, 0, 0, _surface.w, _surface.h); + _system->updateScreen(); + processAnimFrame(); } @@ -853,19 +887,130 @@ void ComposerEngine::loadCTBL(uint id, uint fadePercent) { _system->getPaletteManager()->setPalette(buffer, 0, numEntries); } -void ComposerEngine::decompressBitmap(uint16 type, Common::SeekableReadStream *stream, byte *buffer, uint32 size) { +static void decompressSLWM(byte *buffer, Common::SeekableReadStream *stream) { + uint bitsLeft = 0; + uint16 lastBits; + byte currBit; + while (true) { + if (bitsLeft == 0) { bitsLeft = 16; lastBits = stream->readUint16LE(); } + currBit = (lastBits & 1); lastBits >>= 1; bitsLeft--; + + if (currBit) { + // single byte + *buffer++ = stream->readByte(); + continue; + } + + if (bitsLeft == 0) { bitsLeft = 16; lastBits = stream->readUint16LE(); } + currBit = (lastBits & 1); lastBits >>= 1; bitsLeft--; + + uint start; + uint count; + if (currBit) { + uint orMask = stream->readByte(); + uint in = stream->readByte(); + count = in & 7; + start = ((in & ~7) << 5) | orMask; + if (!count) { + count = stream->readByte(); + if (!count) + break; + count -= 2; + } + } else { + // count encoded in the next two bits + count = 0; + + if (bitsLeft == 0) { bitsLeft = 16; lastBits = stream->readUint16LE(); } + currBit = (lastBits & 1); lastBits >>= 1; bitsLeft--; + + count = (count << 1) | currBit; + + if (bitsLeft == 0) { bitsLeft = 16; lastBits = stream->readUint16LE(); } + currBit = (lastBits & 1); lastBits >>= 1; bitsLeft--; + + count = (count << 1) | currBit; + + start = stream->readByte(); + } + + count += 2; + start++; + memcpy(buffer, buffer - start, count); + buffer += count; + } +} + +void ComposerEngine::decompressBitmap(uint16 type, Common::SeekableReadStream *stream, byte *buffer, uint32 size, uint width, uint height) { switch (type) { case kBitmapUncompressed: assert(stream->size() - (uint)stream->pos() == size); + assert(size == width * height); stream->read(buffer, size); break; + case kBitmapRLESLWM: + { + uint32 bufSize = stream->readUint32LE(); + byte *tempBuf = new byte[bufSize]; + decompressSLWM(tempBuf, stream); + + uint instrPos = tempBuf[0] + 1; + instrPos += READ_LE_UINT16(tempBuf + instrPos) + 2; + byte *instr = tempBuf + instrPos; + + uint line = 0; + while (line++ < height) { + uint pixels = 0; + + while (pixels < width) { + byte data = *instr++; + byte color = tempBuf[(data & 0x7F) + 1]; + if (!(data & 0x80)) { + *buffer++ = color; + pixels++; + } else { + byte count = *instr++; + if (!count) { + while (pixels++ < width) + *buffer++ = color; + break; + } + for (uint i = 0; i < count; i++) { + *buffer++ = color; + pixels++; + } + } + } + } + delete[] tempBuf; + } + break; + case kBitmapSLWM: + decompressSLWM(buffer, stream); + break; default: error("decompressBitmap can't handle type %d", type); } } void ComposerEngine::drawBMAP(uint id, uint x, uint y) { - Common::SeekableReadStream *stream = getResource(ID_BMAP, id); + Common::SeekableReadStream *stream = NULL; + if (hasResource(ID_BMAP, id)) + stream = getResource(ID_BMAP, id); + else + for (Common::List<Pipe *>::iterator k = _pipes.begin(); k != _pipes.end(); k++) { + Pipe *pipe = *k; + if (!pipe->hasResource(ID_BMAP, id)) + continue; + stream = pipe->getResource(ID_BMAP, id, true); + break; + } + + if (!stream) { + // FIXME + warning("couldn't find BMAP %d", id); + return; + } uint16 type = stream->readUint16LE(); uint16 height = stream->readUint16LE(); @@ -874,12 +1019,18 @@ void ComposerEngine::drawBMAP(uint id, uint x, uint y) { debug(1, "BMAP: type %d, width %d, height %d, size %d", type, width, height, size); byte *buffer = new byte[width * height]; - decompressBitmap(type, stream, buffer, size); + decompressBitmap(type, stream, buffer, size, width, height); + + debug(1, "draw at %d,%d", x, y); // incoming data is BMP-style (bottom-up), so flip it byte *pixels = (byte *)_surface.pixels; for (uint j = 0; j < height; j++) { - memcpy(pixels + (j * width), buffer + (height - j - 1) * width, width); + byte *in = buffer + (height - j - 1) * width; + byte *out = pixels + ((j + y) * _surface.w) + x; + for (uint i = 0; i < width; i++) + if (in[i]) + out[i] = in[i]; } delete[] buffer; |