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author | Max Horn | 2003-09-05 20:48:32 +0000 |
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committer | Max Horn | 2003-09-05 20:48:32 +0000 |
commit | 11193b0746b0ac2962c98255663dd1beef3fc2a1 (patch) | |
tree | e35e14acbfe673dc1db661ab17cbd7d37aa89274 /sound | |
parent | 5f2b0b697735652f91a88ed6e4d038d600412c95 (diff) | |
download | scummvm-rg350-11193b0746b0ac2962c98255663dd1beef3fc2a1.tar.gz scummvm-rg350-11193b0746b0ac2962c98255663dd1beef3fc2a1.tar.bz2 scummvm-rg350-11193b0746b0ac2962c98255663dd1beef3fc2a1.zip |
cleaned up sound/mixer.h a bit; renamed some mixer methods for consistency
svn-id: r10018
Diffstat (limited to 'sound')
-rw-r--r-- | sound/mixer.cpp | 43 | ||||
-rw-r--r-- | sound/mixer.h | 51 |
2 files changed, 49 insertions, 45 deletions
diff --git a/sound/mixer.cpp b/sound/mixer.cpp index a032060eef..34ccdad7b1 100644 --- a/sound/mixer.cpp +++ b/sound/mixer.cpp @@ -68,6 +68,8 @@ public: _volume = volume; } virtual void setChannelPan(const int8 pan) { + if (pan != 0) + printf("Pan set to %d\n", pan); _pan = pan; } virtual int getVolume() const { @@ -151,6 +153,23 @@ SoundMixer::~SoundMixer() { _syst->delete_mutex(_mutex); } +bool SoundMixer::bindToSystem(OSystem *syst) { + _syst = syst; + _mutex = _syst->create_mutex(); + _outputRate = (uint) syst->property(OSystem::PROP_GET_SAMPLE_RATE, 0); + + if (_outputRate == 0) + error("OSystem returned invalid sample rate"); + + return syst->set_sound_proc(mixCallback, this, OSystem::SOUND_16BIT); +} + +void SoundMixer::setupPremix(void *param, PremixProc *proc) { + StackLock lock(_mutex); + _premixParam = param; + _premixProc = proc; +} + int SoundMixer::newStream(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags, uint32 buffer_size, byte volume, int8 pan) { StackLock lock(_mutex); return insertChannel(handle, new ChannelStream(this, handle, sound, size, rate, flags, buffer_size, volume, pan)); @@ -291,17 +310,6 @@ void SoundMixer::mixCallback(void *s, byte *samples, int len) { ((SoundMixer *)s)->mix((int16 *)samples, len >> 2); } -bool SoundMixer::bindToSystem(OSystem *syst) { - _syst = syst; - _mutex = _syst->create_mutex(); - _outputRate = (uint) syst->property(OSystem::PROP_GET_SAMPLE_RATE, 0); - - if (_outputRate == 0) - error("OSystem returned invalid sample rate"); - - return syst->set_sound_proc(mixCallback, this, OSystem::SOUND_16BIT); -} - void SoundMixer::stopAll() { StackLock lock(_mutex); for (int i = 0; i != NUM_CHANNELS; i++) @@ -382,11 +390,14 @@ void SoundMixer::setChannelPan(PlayingSoundHandle handle, int8 pan) { _channels[index]->setChannelPan(pan); } -void SoundMixer::pause(bool paused) { +void SoundMixer::pauseMixer(bool paused) { + // TODO/FIXME: This is only used by scumm/sound.cpp, and + // even there it can probably be replaced by a call to pauseAll. + // Research that, and if possible remove this method. _paused = paused; } -void SoundMixer::pauseChannels(bool paused) { +void SoundMixer::pauseAll(bool paused) { _channelsPaused = paused; } @@ -441,12 +452,6 @@ bool SoundMixer::hasActiveSFXChannel() { return false; } -void SoundMixer::setupPremix(void *param, PremixProc *proc) { - StackLock lock(_mutex); - _premixParam = param; - _premixProc = proc; -} - void SoundMixer::setVolume(int volume) { // Check range if (volume > 256) diff --git a/sound/mixer.h b/sound/mixer.h index fba5917fd0..1f5b5b78f5 100644 --- a/sound/mixer.h +++ b/sound/mixer.h @@ -52,7 +52,6 @@ public: }; enum { - // Do *NOT* change any of these flags without looking at the code in mixer.cpp FLAG_UNSIGNED = 1 << 0, // unsigned samples (default: signed) FLAG_STEREO = 1 << 1, // sound is in stereo (default: mono) FLAG_16BITS = 1 << 2, // sound is 16 bits wide (default: 8bit) @@ -81,6 +80,14 @@ public: SoundMixer(); ~SoundMixer(); + /** bind to the OSystem object => mixer will be + * invoked automatically when samples need + * to be generated */ + bool bindToSystem(OSystem *syst); + + /** Premix procedure, useful when using fmopl adlib */ + void setupPremix(void * param, PremixProc * proc); + // start playing a raw sound int playRaw(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags, byte volume, int8 pan, int id = -1, uint32 loopStart = 0, uint32 loopEnd = 0); @@ -92,8 +99,14 @@ public: int playVorbis(PlayingSoundHandle *handle, OggVorbis_File *ov_file, int duration, bool is_cd_track, byte volume, int8 pan); #endif - /** Premix procedure, useful when using fmopl adlib */ - void setupPremix(void * param, PremixProc * proc); + /** Start a new stream. */ + int newStream(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags, uint32 buffer_size, byte volume, int8 pan); + + /** Append to an existing stream. */ + void appendStream(PlayingSoundHandle handle, void *sound, uint32 size); + + /** Mark a stream as finished - it will play all its remaining data, then stop. */ + void endStream(PlayingSoundHandle handle); /** stop all currently playing sounds */ void stopAll(); @@ -107,6 +120,12 @@ public: /** stop playing the channel for the given handle */ void stopHandle(PlayingSoundHandle handle); + /** pause/unpause all mixing (including adlib) */ + void pauseMixer(bool paused); + + /** pause/unpause all channels */ + void pauseAll(bool paused); + /** pause/unpause the given channel */ void pauseChannel(int index, bool paused); @@ -116,35 +135,15 @@ public: /** pause/unpause the channel for the given handle */ void pauseHandle(PlayingSoundHandle handle, bool paused); - /** changing the channel volume for the given handle (0 - 255) */ + /** set the channel volume for the given handle (0 - 255) */ void setChannelVolume(PlayingSoundHandle handle, byte volume); - /** changing the channel pan for the given handle (-127 ... 0 ... 127) (left ... center ... right)*/ + /** set the channel pan for the given handle (-127 ... 0 ... 127) (left ... center ... right)*/ void setChannelPan(PlayingSoundHandle handle, int8 pan); - /** Start a new stream. */ - int newStream(PlayingSoundHandle *handle, void *sound, uint32 size, uint rate, byte flags, uint32 buffer_size, byte volume, int8 pan); - - /** Append to an existing stream. */ - void appendStream(PlayingSoundHandle handle, void *sound, uint32 size); - - /** Mark a stream as finished - it will play all its remaining data, then stop. */ - void endStream(PlayingSoundHandle handle); - /** Check whether any SFX channel is active.*/ bool hasActiveSFXChannel(); - /** bind to the OSystem object => mixer will be - * invoked automatically when samples need - * to be generated */ - bool bindToSystem(OSystem *syst); - - /** pause - unpause */ - void pause(bool paused); - - /** pause - unpause channels, keep adlib music running */ - void pauseChannels(bool paused); - /** set the global volume, 0-256 */ void setVolume(int volume); @@ -163,7 +162,7 @@ public: private: int insertChannel(PlayingSoundHandle *handle, Channel *chan); - /** mix */ + /** main mixer method */ void mix(int16 * buf, uint len); static void mixCallback(void *s, byte *samples, int len); |