diff options
Diffstat (limited to 'engines/macventure/sound.cpp')
| -rw-r--r-- | engines/macventure/sound.cpp | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/engines/macventure/sound.cpp b/engines/macventure/sound.cpp index 2addb1932b..fe4637e703 100644 --- a/engines/macventure/sound.cpp +++ b/engines/macventure/sound.cpp @@ -35,11 +35,14 @@ SoundAsset::SoundAsset(Container *container, ObjID id) : stream->seek(5, SEEK_SET); SoundType type = (SoundType)stream->readByte(); - + debug(2, "Decoding sound of type %x", type); switch(type) { case kSound10: decode10(stream); break; + case kSound7e: + decode7e(stream); + break; default: warning("Unrecognized sound type: %x", type); } @@ -59,8 +62,41 @@ uint32 SoundAsset::getPlayLength() { } void SoundAsset::decode10(Common::SeekableReadStream *stream) { - //TODO: Decode 10 - debug("Decoding sound type 10"); + Common::Array<byte> wavtable; + stream->seek(0x198, SEEK_SET); + for (int i = 0; i < 16; i++) { + wavtable.push_back(stream->readByte()); + } + _length = stream->readUint32BE() * 2; + //Unused + stream->readUint16BE(); + _frequency = (stream->readUint32BE() * 22100 / 0x10000) | 0; + byte ch = 0; + for (int i = 0; i < _length; i++) { + if (i & 1) ch >>= 4; + else ch = stream->readByte(); + _data.push_back(wavtable[ch & 0xf]); + } +} + +void SoundAsset::decode7e(Common::SeekableReadStream *stream) { + Common::Array<byte> wavtable; + stream->seek(0xc2, SEEK_SET); + for (int i = 0; i < 16; i++) { + wavtable.push_back(stream->readByte()); + } + //Unused + stream->readUint32BE(); + _length = stream->readUint32BE(); + _frequency = (stream->readUint32BE() * 22100 / 0x10000) | 0; + uint32 last=0x80; + byte ch = 0; + for (int i = 0; i < _length; i++) { + if (i & 1) ch <<= 4; + else ch = stream->readByte(); + last += wavtable[(ch >> 4) & 0xf]; + _data.push_back(last & 0xff); + } } // SoundManager @@ -68,7 +104,7 @@ SoundManager::SoundManager(MacVentureEngine *engine) { _container = nullptr; Common::String filename = engine->getFilePath(kSoundPathID); _container = new Container(filename); - debug("Created sound manager with file %s", filename.c_str()); + debug(1, "Created sound manager with file %s", filename.c_str()); } SoundManager::~SoundManager(){ |