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Diffstat (limited to 'engines/groovie/roq.cpp')
| -rw-r--r-- | engines/groovie/roq.cpp | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/engines/groovie/roq.cpp b/engines/groovie/roq.cpp new file mode 100644 index 0000000000..589251da31 --- /dev/null +++ b/engines/groovie/roq.cpp @@ -0,0 +1,403 @@ +/* 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 "groovie/groovie.h" +#include "groovie/roq.h" + +#include "sound/mixer.h" + +namespace Groovie { + +ROQPlayer::ROQPlayer(GroovieEngine *vm) : + VideoPlayer(vm) { +} + +ROQPlayer::~ROQPlayer() { +} + +uint16 ROQPlayer::loadInternal() { + // Begin reading the file + debugC(1, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Loading video"); + + // Read the file header + ROQBlockHeader blockHeader; + if (!readBlockHeader(blockHeader)) { + return 0; + } + if (blockHeader.type != 0x1084 || blockHeader.size != 0 || blockHeader.param != 0) { + return 0; + } + + // Hardcoded FPS + return 25; +} + +bool ROQPlayer::playFrameInternal() { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Playing frame"); + + // Process the needed blocks until the next video frame + bool endframe = false; + while (!endframe && !_file->eos()) { + endframe = processBlock(); + } + + // Wait until the current frame can be shown + waitFrame(); + + // Update the screen + _syst->updateScreen(); + + // Return whether the video has ended + return _file->eos(); +} + +bool ROQPlayer::readBlockHeader(ROQBlockHeader &blockHeader) { + if (_file->eos()) { + return false; + } else { + blockHeader.type = _file->readUint16LE(); + blockHeader.size = _file->readUint32LE(); + blockHeader.param = _file->readUint16LE(); + + debugC(10, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Block type = 0x%02X", blockHeader.type); + debugC(10, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Block size = 0x%08X", blockHeader.size); + debugC(10, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Block param = 0x%04X", blockHeader.param); + + return true; + } +} + +bool ROQPlayer::processBlock() { + // Read the header of the block + ROQBlockHeader blockHeader; + if (!readBlockHeader(blockHeader)) { + return true; + } + + bool ok = true; + bool endframe = false; + switch (blockHeader.type) { + case 0x1001: // Video info + ok = processBlockInfo(blockHeader); + break; + case 0x1002: // Quad codebook definition + ok = processBlockQuadCodebook(blockHeader); + break; + case 0x1011: // Quad vector quantised video frame + ok = processBlockQuadVector(blockHeader); + endframe = true; + break; + case 0x1012: // Still image (JPEG) + ok = processBlockStill(blockHeader); + endframe = true; + break; + case 0x1013: // Hang + //warning("Groovie::ROQ: Hang block (skipped)"); + break; + case 0x1020: // Mono sound samples + ok = processBlockSoundMono(blockHeader); + break; + case 0x1021: // Stereo sound samples + ok = processBlockSoundStereo(blockHeader); + break; + case 0x1030: // Audio container + ok = processBlockAudioContainer(blockHeader); + break; + default: + error("Groovie::ROQ: Unknown block type: 0x%04X", blockHeader.type); + ok = false; + } + + // End the frame when the graphics have been modified or when there's an error + return endframe || !ok; +} + +bool ROQPlayer::processBlockInfo(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing info block"); + + // Verify the block header + if (blockHeader.type != 0x1001 || blockHeader.size != 8 || blockHeader.param != 0) { + return false; + } + + uint16 tmp; + tmp = _file->readUint16LE(); + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "w = %d\n", tmp); + if (tmp != 640) { + return false; + } + tmp = _file->readUint16LE(); + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "h = %d\n", tmp); + if (tmp != 320) { + return false; + } + tmp = _file->readUint16LE(); + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "unk1 = %d\n", tmp); + if (tmp != 8) { + return false; + } + tmp = _file->readUint16LE(); + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "unk2 = %d\n", tmp); + if (tmp != 4) { + return false; + } + return true; +} + +bool ROQPlayer::processBlockQuadCodebook(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing quad codebook block"); + + // Get the number of 2x2 pixel blocks + _num2blocks = blockHeader.param >> 8; + if (_num2blocks == 0) { + _num2blocks = 256; + } + + // Get the number of 4x4 pixel blocks + _num4blocks = blockHeader.param & 0xFF; + if (_num4blocks == 0 && (blockHeader.size > (uint32)_num2blocks * 6)) { + _num4blocks = 256; + } + + _file->skip(_num2blocks * 6); + _file->skip(_num4blocks * 4); + + return true; +} + +bool ROQPlayer::processBlockQuadVector(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing quad vector block"); + _file->skip(blockHeader.size); + return true; + + // Get the mean motion vectors + //byte Mx = blockHeader.param >> 8; + //byte My = blockHeader.param & 0xFF; + + int32 ends =_file->pos() + blockHeader.size; + int numblocks = (640 / 8) * (320 / 8); + for (int j = 0; j < numblocks && ends > _file->pos(); j++) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "doing block %d/%d\n", j, numblocks); + uint16 codingType = _file->readUint16LE(); + for (int i = 0; i < 8; i++) { + switch (codingType >> 14) { + case 0: // MOT: Skip block + //printf("coding type 0\n"); + break; + case 1: { // FCC: Copy an existing block + //printf("coding type 1\n"); + byte argument; + argument = _file->readByte(); + //byte Dx = Mx + (argument >> 4); + //byte Dy = My + (argument & 0x0F); + // Dx = X + 8 - (argument >> 4) - Mx + // Dy = Y + 8 - (argument & 0x0F) - My + break; + } + case 2: { // SLD: Quad vector quantisation + //printf("coding type 2\n"); + byte argument = _file->readByte(); + if (argument > _num4blocks) { + //error("invalid 4x4 block %d of %d", argument, _num4blocks); + } + // Upsample the 4x4 pixel block + break; + } + case 3: // CCC: + //printf("coding type 3:\n"); + processBlockQuadVectorSub(blockHeader); + break; + } + codingType <<= 2; + } + } + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Should have ended at %d, and has ended at %d\n", ends, _file->pos()); + return true; +} + +bool ROQPlayer::processBlockQuadVectorSub(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing quad vector sub block"); + + // Get the mean motion vectors + //byte Mx = blockHeader.param >> 8; + //byte My = blockHeader.param & 0xFF; + + uint16 codingType = _file->readUint16LE(); + for (int i = 0; i < 4; i++) { + switch (codingType >> 14) { + case 0: // MOT: Skip block + //printf("coding type 0\n"); + break; + case 1: { // FCC: Copy an existing block + //printf("coding type 1\n"); + byte argument; + argument = _file->readByte(); + //byte Dx = Mx + (argument >> 4); + //byte Dy = My + (argument & 0x0F); + // Dx = X + 8 - (argument >> 4) - Mx + // Dy = Y + 8 - (argument & 0x0F) - My + break; + } + case 2: { // SLD: Quad vector quantisation + //printf("coding type 2\n"); + byte argument = _file->readByte(); + if (argument > _num2blocks) { + //error("invalid 2x2 block: %d of %d", argument, _num2blocks); + } + break; + } + case 3: + //printf("coding type 3\n"); + _file->readByte(); + _file->readByte(); + _file->readByte(); + _file->readByte(); + break; + } + codingType <<= 2; + } + return true; +} + +bool ROQPlayer::processBlockStill(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing still (JPEG) block"); + //Common::ReadStream *jpegData = new Common::SubReadStream(_file, blockHeader.size); + //Graphics::JPEG jpegFrame; + //jpegFrame.read(jpegData); + /* + Common::File save; + save.open("dump.jpg", Common::File::kFileWriteMode); + save.write(data, blockHeader.size); + save.close(); + */ + error("JPEG!"); + return true; +} + +bool ROQPlayer::processBlockSoundMono(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing mono sound block"); + + // Verify the block header + if (blockHeader.type != 0x1020) { + return false; + } + + // Initialize the audio stream if needed + if (!_audioStream) { + byte flags = Audio::Mixer::FLAG_16BITS | Audio::Mixer::FLAG_AUTOFREE; +#ifdef SCUMM_LITTLE_ENDIAN + flags |= Audio::Mixer::FLAG_LITTLE_ENDIAN; +#endif + _audioStream = Audio::makeAppendableAudioStream(22050, flags); + Audio::SoundHandle sound_handle; + ::g_engine->_mixer->playInputStream(Audio::Mixer::kPlainSoundType, &sound_handle, _audioStream); + } + + // Create the audio buffer + int16 *buffer = new int16[blockHeader.size]; + + // Initialize the prediction with the block parameter + int16 prediction = blockHeader.param ^ 0x8000; + + // Process the data + for (uint16 i = 0; i < blockHeader.size; i++) { + int16 data = _file->readByte(); + if (data < 0x80) { + prediction += data * data; + } else { + data -= 0x80; + prediction -= data * data; + } + buffer[i] = prediction; + } + + // Queue the read buffer + _audioStream->queueBuffer((byte *)buffer, blockHeader.size * 2); + + return true; +} + +bool ROQPlayer::processBlockSoundStereo(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing stereo sound block"); + + // Verify the block header + if (blockHeader.type != 0x1021) { + return false; + } + + // Initialize the audio stream if needed + if (!_audioStream) { + byte flags = Audio::Mixer::FLAG_16BITS | Audio::Mixer::FLAG_AUTOFREE | Audio::Mixer::FLAG_STEREO; +#ifdef SCUMM_LITTLE_ENDIAN + flags |= Audio::Mixer::FLAG_LITTLE_ENDIAN; +#endif + _audioStream = Audio::makeAppendableAudioStream(22050, flags); + Audio::SoundHandle sound_handle; + ::g_engine->_mixer->playInputStream(Audio::Mixer::kPlainSoundType, &sound_handle, _audioStream); + } + + // Create the audio buffer + int16 *buffer = new int16[blockHeader.size]; + + // Initialize the prediction with the block parameter + int16 predictionLeft = (blockHeader.param & 0xFF00) ^ 0x8000; + int16 predictionRight = (blockHeader.param << 8) ^ 0x8000; + bool left = true; + + // Process the data + for (uint16 i = 0; i < blockHeader.size; i++) { + int16 data = _file->readByte(); + if (left) { + if (data < 0x80) { + predictionLeft += data * data; + } else { + data -= 0x80; + predictionLeft -= data * data; + } + buffer[i] = predictionLeft; + } else { + if (data < 0x80) { + predictionRight += data * data; + } else { + data -= 0x80; + predictionRight -= data * data; + } + buffer[i] = predictionRight; + } + left = !left; + } + + // Queue the read buffer + _audioStream->queueBuffer((byte *)buffer, blockHeader.size * 2); + + return true; +} + +bool ROQPlayer::processBlockAudioContainer(ROQBlockHeader &blockHeader) { + debugC(5, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::ROQ: Processing audio container block: 0x%04X", blockHeader.param); + return true; +} + +} // End of Groovie namespace |