diff options
Diffstat (limited to 'engines/kyra/sound_digital.cpp')
-rw-r--r-- | engines/kyra/sound_digital.cpp | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/engines/kyra/sound_digital.cpp b/engines/kyra/sound_digital.cpp index 755bc710cd..84a56536a4 100644 --- a/engines/kyra/sound_digital.cpp +++ b/engines/kyra/sound_digital.cpp @@ -33,7 +33,7 @@ namespace Kyra { // FIXME: sound 'stutters' a bit, maybe a problem while converting int8 samples to int16? class AUDStream : public Audio::AudioStream { public: - AUDStream(Common::File *file); + AUDStream(Common::File *file, bool loop = false); ~AUDStream(); int readBuffer(int16 *buffer, const int numSamples); @@ -44,6 +44,8 @@ public: int getRate() const { return _rate; } private: Common::File *_file; + bool _loop; + uint32 _loopStart; bool _endOfData; int _rate; uint _processedSize; @@ -70,13 +72,14 @@ const int8 AUDStream::WSTable4Bit[] = { 0, 1, 2, 3, 4, 5, 6, 8 }; -AUDStream::AUDStream(Common::File *file) : _file(0), _endOfData(true), _rate(0), +AUDStream::AUDStream(Common::File *file, bool loop) : _file(0), _endOfData(true), _rate(0), _processedSize(0), _totalSize(0), _bytesLeft(0), _outBuffer(0), _outBufferOffset(0), _outBufferSize(0), _inBuffer(0), _inBufferSize(0) { #if defined(__SYMBIAN32__) // Symbian can't share filehandles between different threads. - // So create a new file and seek that to the other filehandles position - _file= new File; + // So create a new file and seek that to the other filehandle's + // position + _file = new File; _file->open(file->name()); _file->seek(file->pos()); #else @@ -86,9 +89,12 @@ AUDStream::AUDStream(Common::File *file) : _file(0), _endOfData(true), _rate(0), _rate = _file->readUint16LE(); _totalSize = _file->readUint32LE(); + _loop = loop; // TODO?: add checks int flags = _file->readByte(); // flags int type = _file->readByte(); // type + + _loopStart = file->pos(); if (type == 1 && !flags) { _endOfData = false; @@ -134,10 +140,13 @@ int AUDStream::readChunk(int16 *buffer, const int maxSamples) { // if no bytes of the old chunk are left, read the next one if (_bytesLeft <= 0) { if (_processedSize >= _totalSize) { - // TODO: Eventually, we're probably going to need the - // ability to loop the sound. Add this here? - _endOfData = true; - return 0; + if (_loop) { + _file->seek(_loopStart); + _processedSize = 0; + } else { + _endOfData = true; + return 0; + } } uint16 size = _file->readUint16LE(); @@ -287,7 +296,7 @@ bool SoundDigital::init() { return true; } -int SoundDigital::playSound(Common::File *fileHandle, int channel) { +int SoundDigital::playSound(Common::File *fileHandle, bool loop, int channel) { Sound *use = 0; if (channel != -1 && channel < SOUND_STREAMS) { stopSound(channel); @@ -306,7 +315,7 @@ int SoundDigital::playSound(Common::File *fileHandle, int channel) { } } - Audio::AudioStream *stream = new AUDStream(fileHandle); + Audio::AudioStream *stream = new AUDStream(fileHandle, loop); if (stream->endOfData()) { delete stream; delete fileHandle; |