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-rw-r--r--Alc/alcModulator.c46
1 files changed, 22 insertions, 24 deletions
diff --git a/Alc/alcModulator.c b/Alc/alcModulator.c
index 1908007c..c4085fa3 100644
--- a/Alc/alcModulator.c
+++ b/Alc/alcModulator.c
@@ -82,11 +82,9 @@ static __inline ALfloat hpFilter1P(FILTER *iir, ALuint offset, ALfloat input)
#define DECL_TEMPLATE(func) \
-static void Process##func(ALmodulatorState *state, const ALeffectslot *Slot, \
- ALuint SamplesToDo, const ALfloat *SamplesIn, \
- ALfloat (*SamplesOut)[MAXCHANNELS]) \
+static void Process##func(ALmodulatorState *state, ALuint SamplesToDo, \
+ const ALfloat *SamplesIn, ALfloat (*SamplesOut)[MAXCHANNELS]) \
{ \
- const ALfloat gain = Slot->Gain; \
const ALuint step = state->step; \
ALuint index = state->index; \
ALfloat samp; \
@@ -102,9 +100,6 @@ static void Process##func(ALmodulatorState *state, const ALeffectslot *Slot, \
\
samp = hpFilter1P(&state->iirFilter, 0, samp); \
\
- /* Apply slot gain */ \
- samp *= gain; \
- \
SamplesOut[i][FRONT_LEFT] += state->Gain[FRONT_LEFT] * samp; \
SamplesOut[i][FRONT_RIGHT] += state->Gain[FRONT_RIGHT] * samp; \
SamplesOut[i][FRONT_CENTER] += state->Gain[FRONT_CENTER] * samp; \
@@ -132,24 +127,17 @@ static ALvoid ModulatorDestroy(ALeffectState *effect)
static ALboolean ModulatorDeviceUpdate(ALeffectState *effect, ALCdevice *Device)
{
- ALmodulatorState *state = (ALmodulatorState*)effect;
- ALuint index;
-
- for(index = 0;index < MAXCHANNELS;index++)
- state->Gain[index] = 0.0f;
- for(index = 0;index < Device->NumChan;index++)
- {
- enum Channel chan = Device->Speaker2Chan[index];
- state->Gain[chan] = 1.0f;
- }
-
return AL_TRUE;
+ (void)effect;
+ (void)Device;
}
static ALvoid ModulatorUpdate(ALeffectState *effect, ALCcontext *Context, const ALeffectslot *Slot)
{
ALmodulatorState *state = (ALmodulatorState*)effect;
- ALfloat cw, a = 0.0f;
+ ALCdevice *Device = Context->Device;
+ ALfloat gain, cw, a = 0.0f;
+ ALuint index;
if(Slot->effect.Params.Modulator.Waveform == AL_RING_MODULATOR_SINUSOID)
state->Waveform = SINUSOID;
@@ -159,32 +147,42 @@ static ALvoid ModulatorUpdate(ALeffectState *effect, ALCcontext *Context, const
state->Waveform = SQUARE;
state->step = Slot->effect.Params.Modulator.Frequency*(1<<WAVEFORM_FRACBITS) /
- Context->Device->Frequency;
+ Device->Frequency;
if(!state->step)
state->step = 1;
cw = cos(2.0*M_PI * Slot->effect.Params.Modulator.HighPassCutoff /
- Context->Device->Frequency);
+ Device->Frequency);
a = (2.0f-cw) - aluSqrt(aluPow(2.0f-cw, 2.0f) - 1.0f);
state->iirFilter.coeff = a;
+
+ gain = Slot->Gain;
+ for(index = 0;index < MAXCHANNELS;index++)
+ state->Gain[index] = 0.0f;
+ for(index = 0;index < Device->NumChan;index++)
+ {
+ enum Channel chan = Device->Speaker2Chan[index];
+ state->Gain[chan] = gain;
+ }
}
static ALvoid ModulatorProcess(ALeffectState *effect, const ALeffectslot *Slot, ALuint SamplesToDo, const ALfloat *SamplesIn, ALfloat (*SamplesOut)[MAXCHANNELS])
{
ALmodulatorState *state = (ALmodulatorState*)effect;
+ (void)Slot;
switch(state->Waveform)
{
case SINUSOID:
- ProcessSin(state, Slot, SamplesToDo, SamplesIn, SamplesOut);
+ ProcessSin(state, SamplesToDo, SamplesIn, SamplesOut);
break;
case SAWTOOTH:
- ProcessSaw(state, Slot, SamplesToDo, SamplesIn, SamplesOut);
+ ProcessSaw(state, SamplesToDo, SamplesIn, SamplesOut);
break;
case SQUARE:
- ProcessSquare(state, Slot, SamplesToDo, SamplesIn, SamplesOut);
+ ProcessSquare(state, SamplesToDo, SamplesIn, SamplesOut);
break;
}
}