diff options
Diffstat (limited to 'Alc/effects/flanger.c')
| -rw-r--r-- | Alc/effects/flanger.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/Alc/effects/flanger.c b/Alc/effects/flanger.c index bbd16059..75b72dec 100644 --- a/Alc/effects/flanger.c +++ b/Alc/effects/flanger.c @@ -48,7 +48,10 @@ typedef struct ALflangerState { ALint lfo_disp; /* Gains for left and right sides */ - ALfloat Gain[2][MAX_OUTPUT_CHANNELS]; + struct { + ALfloat Current[MAX_OUTPUT_CHANNELS]; + ALfloat Target[MAX_OUTPUT_CHANNELS]; + } Gains[2]; /* effect parameters */ enum FlangerWaveForm waveform; @@ -90,7 +93,6 @@ static ALvoid ALflangerState_Destruct(ALflangerState *state) static ALboolean ALflangerState_deviceUpdate(ALflangerState *state, ALCdevice *Device) { ALsizei maxlen; - ALsizei it; maxlen = fastf2i(AL_FLANGER_MAX_DELAY * 2.0f * Device->Frequency) + 1; maxlen = NextPowerOf2(maxlen); @@ -106,8 +108,8 @@ static ALboolean ALflangerState_deviceUpdate(ALflangerState *state, ALCdevice *D state->BufferLength = maxlen; } - for(it = 0;it < state->BufferLength;it++) - state->SampleBuffer[it] = 0.0f; + memset(state->SampleBuffer, 0, state->BufferLength*sizeof(ALfloat)); + memset(state->Gains, 0, sizeof(state->Gains)); return AL_TRUE; } @@ -144,9 +146,9 @@ static ALvoid ALflangerState_update(ALflangerState *state, const ALCcontext *con /* Gains for left and right sides */ CalcAngleCoeffs(-F_PI_2, 0.0f, 0.0f, coeffs); - ComputePanningGains(device->Dry, coeffs, slot->Params.Gain, state->Gain[0]); + ComputePanningGains(device->Dry, coeffs, slot->Params.Gain, state->Gains[0].Target); CalcAngleCoeffs( F_PI_2, 0.0f, 0.0f, coeffs); - ComputePanningGains(device->Dry, coeffs, slot->Params.Gain, state->Gain[1]); + ComputePanningGains(device->Dry, coeffs, slot->Params.Gain, state->Gains[1].Target); phase = props->Flanger.Phase; rate = props->Flanger.Rate; @@ -270,8 +272,8 @@ static ALvoid ALflangerState_process(ALflangerState *state, ALsizei SamplesToDo, state->lfo_offset = (state->lfo_offset+todo) % state->lfo_range; for(c = 0;c < 2;c++) - MixSamples(temps[c], NumChannels, SamplesOut, state->Gain[c], state->Gain[c], - 0, base, todo); + MixSamples(temps[c], NumChannels, SamplesOut, state->Gains[c].Current, + state->Gains[c].Target, 0, base, todo); base += todo; } |