diff options
Diffstat (limited to 'audio/mixer.cpp')
-rw-r--r-- | audio/mixer.cpp | 56 |
1 files changed, 35 insertions, 21 deletions
diff --git a/audio/mixer.cpp b/audio/mixer.cpp index dc0287e3fb..63f006cbc9 100644 --- a/audio/mixer.cpp +++ b/audio/mixer.cpp @@ -162,16 +162,11 @@ private: MixerImpl::MixerImpl(OSystem *system, uint sampleRate) - : _syst(system), _sampleRate(sampleRate), _mixerReady(false), _handleSeed(0) { + : _syst(system), _mutex(), _sampleRate(sampleRate), _mixerReady(false), _handleSeed(0), _soundTypeSettings() { assert(sampleRate > 0); - int i; - - for (i = 0; i < ARRAYSIZE(_volumeForSoundType); i++) - _volumeForSoundType[i] = kMaxMixerVolume; - - for (i = 0; i != NUM_CHANNELS; i++) + for (int i = 0; i != NUM_CHANNELS; i++) _channels[i] = 0; } @@ -322,6 +317,21 @@ void MixerImpl::stopHandle(SoundHandle handle) { _channels[index] = 0; } +void MixerImpl::muteSoundType(SoundType type, bool mute) { + assert(0 <= type && type < ARRAYSIZE(_soundTypeSettings)); + _soundTypeSettings[type].mute = mute; + + for (int i = 0; i != NUM_CHANNELS; ++i) { + if (_channels[i] && _channels[i]->getType() == type) + _channels[i]->notifyGlobalVolChange(); + } +} + +bool MixerImpl::isSoundTypeMuted(SoundType type) const { + assert(0 <= type && type < ARRAYSIZE(_soundTypeSettings)); + return _soundTypeSettings[type].mute; +} + void MixerImpl::setChannelVolume(SoundHandle handle, byte volume) { Common::StackLock lock(_mutex); @@ -417,7 +427,7 @@ bool MixerImpl::hasActiveChannelOfType(SoundType type) { } void MixerImpl::setVolumeForSoundType(SoundType type, int volume) { - assert(0 <= type && type < ARRAYSIZE(_volumeForSoundType)); + assert(0 <= type && type < ARRAYSIZE(_soundTypeSettings)); // Check range if (volume > kMaxMixerVolume) @@ -429,7 +439,7 @@ void MixerImpl::setVolumeForSoundType(SoundType type, int volume) { // scaling? See also Player_V2::setMasterVolume Common::StackLock lock(_mutex); - _volumeForSoundType[type] = volume; + _soundTypeSettings[type].volume = volume; for (int i = 0; i != NUM_CHANNELS; ++i) { if (_channels[i] && _channels[i]->getType() == type) @@ -438,9 +448,9 @@ void MixerImpl::setVolumeForSoundType(SoundType type, int volume) { } int MixerImpl::getVolumeForSoundType(SoundType type) const { - assert(0 <= type && type < ARRAYSIZE(_volumeForSoundType)); + assert(0 <= type && type < ARRAYSIZE(_soundTypeSettings)); - return _volumeForSoundType[type]; + return _soundTypeSettings[type].volume; } @@ -486,17 +496,21 @@ void Channel::updateChannelVolumes() { // volume is in the range 0 - kMaxMixerVolume. // Hence, the vol_l/vol_r values will be in that range, too - int vol = _mixer->getVolumeForSoundType(_type) * _volume; - - if (_balance == 0) { - _volL = vol / Mixer::kMaxChannelVolume; - _volR = vol / Mixer::kMaxChannelVolume; - } else if (_balance < 0) { - _volL = vol / Mixer::kMaxChannelVolume; - _volR = ((127 + _balance) * vol) / (Mixer::kMaxChannelVolume * 127); + if (!_mixer->isSoundTypeMuted(_type)) { + int vol = _mixer->getVolumeForSoundType(_type) * _volume; + + if (_balance == 0) { + _volL = vol / Mixer::kMaxChannelVolume; + _volR = vol / Mixer::kMaxChannelVolume; + } else if (_balance < 0) { + _volL = vol / Mixer::kMaxChannelVolume; + _volR = ((127 + _balance) * vol) / (Mixer::kMaxChannelVolume * 127); + } else { + _volL = ((127 - _balance) * vol) / (Mixer::kMaxChannelVolume * 127); + _volR = vol / Mixer::kMaxChannelVolume; + } } else { - _volL = ((127 - _balance) * vol) / (Mixer::kMaxChannelVolume * 127); - _volR = vol / Mixer::kMaxChannelVolume; + _volL = _volR = 0; } } |