diff options
Diffstat (limited to 'OpenAL32/alMidi.c')
| -rw-r--r-- | OpenAL32/alMidi.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/OpenAL32/alMidi.c b/OpenAL32/alMidi.c index 8a783e50..7e3b5f54 100644 --- a/OpenAL32/alMidi.c +++ b/OpenAL32/alMidi.c @@ -37,6 +37,7 @@ static void MidiSynth_Construct(MidiSynth *self, ALCdevice *device) RWLockInit(&self->Lock); + self->Gain = 1.0f; self->State = AL_INITIAL; self->LastEvtTime = 0; @@ -52,6 +53,16 @@ static void MidiSynth_Destruct(MidiSynth *self) ResetEvtQueue(&self->EventQueue); } +static inline void MidiSynth_setGain(MidiSynth *self, ALfloat gain) +{ + self->Gain = gain; +} + +ALfloat MidiSynth_getGain(const MidiSynth *self) +{ + return self->Gain; +} + static inline void MidiSynth_setState(MidiSynth *self, ALenum state) { ExchangeInt(&self->State, state); @@ -166,6 +177,7 @@ static void FSynth_Destruct(FSynth *self); static ALboolean FSynth_init(FSynth *self, ALCdevice *device); static ALboolean FSynth_isSoundfont(FSynth *self, const char *filename); static ALenum FSynth_loadSoundfont(FSynth *self, const char *filename); +static void FSynth_setGain(FSynth *self, ALfloat gain); static void FSynth_setState(FSynth *self, ALenum state); static void FSynth_reset(FSynth *self); static void FSynth_update(FSynth *self, ALCdevice *device); @@ -269,6 +281,15 @@ static ALenum FSynth_loadSoundfont(FSynth *self, const char *filename) } +static void FSynth_setGain(FSynth *self, ALfloat gain) +{ + /* Add an additional 0.2 (-14dB) to the gain, to help keep the mix from clipping. */ + fluid_settings_setnum(self->Settings, "synth.gain", 0.2 * gain); + fluid_synth_set_gain(self->Synth, 0.2f * gain); + MidiSynth_setGain(STATIC_CAST(MidiSynth, self), gain); +} + + static void FSynth_setState(FSynth *self, ALenum state) { if(state == AL_PLAYING && self->FontID == FLUID_FAILED) @@ -440,6 +461,7 @@ static void DSynth_Construct(DSynth *self, ALCdevice *device); static DECLARE_FORWARD(DSynth, MidiSynth, void, Destruct) static ALboolean DSynth_isSoundfont(DSynth *self, const char *filename); static ALenum DSynth_loadSoundfont(DSynth *self, const char *filename); +static DECLARE_FORWARD1(DSynth, MidiSynth, void, setGain, ALfloat) static DECLARE_FORWARD1(DSynth, MidiSynth, void, setState, ALenum) static DECLARE_FORWARD(DSynth, MidiSynth, void, reset) static DECLARE_FORWARD1(DSynth, MidiSynth, void, update, ALCdevice*) @@ -744,6 +766,25 @@ AL_API void AL_APIENTRY alMidiStopSOFT(void) } +AL_API void AL_APIENTRY alMidiGainSOFT(ALfloat value) +{ + ALCdevice *device; + ALCcontext *context; + + context = GetContextRef(); + if(!context) return; + + if(!(value >= 0.0f && isfinite(value))) + SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done); + + device = context->Device; + V(device->Synth,setGain)(value); + +done: + ALCcontext_DecRef(context); +} + + void InitEvtQueue(EvtQueue *queue) { queue->events = NULL; |