diff options
Diffstat (limited to 'Alc/effects')
| -rw-r--r-- | Alc/effects/modulator.c | 63 |
1 files changed, 41 insertions, 22 deletions
diff --git a/Alc/effects/modulator.c b/Alc/effects/modulator.c index 213f60c3..bb74d3ec 100644 --- a/Alc/effects/modulator.c +++ b/Alc/effects/modulator.c @@ -38,9 +38,9 @@ typedef struct ALmodulatorState { ALuint index; ALuint step; - ALfloat Gain[MAX_OUTPUT_CHANNELS]; + ALfloat Gain[MAX_EFFECT_CHANNELS][MAX_OUTPUT_CHANNELS]; - ALfilterState Filter; + ALfilterState Filter[MAX_EFFECT_CHANNELS]; } ALmodulatorState; #define WAVEFORM_FRACBITS 24 @@ -93,7 +93,9 @@ static ALboolean ALmodulatorState_deviceUpdate(ALmodulatorState *UNUSED(state), static ALvoid ALmodulatorState_update(ALmodulatorState *state, const ALCdevice *Device, const ALeffectslot *Slot) { - ALfloat cw, a; + ALfloat scale, cw, a; + aluMatrixf matrix; + ALuint i; if(Slot->EffectProps.Modulator.Waveform == AL_RING_MODULATOR_SINUSOID) state->Process = ModulateSin; @@ -110,14 +112,26 @@ static ALvoid ALmodulatorState_update(ALmodulatorState *state, const ALCdevice * cw = cosf(F_TAU * Slot->EffectProps.Modulator.HighPassCutoff / Device->Frequency); a = (2.0f-cw) - sqrtf(powf(2.0f-cw, 2.0f) - 1.0f); - state->Filter.a1 = -a; - state->Filter.a2 = 0.0f; - state->Filter.b1 = -a; - state->Filter.b2 = 0.0f; - state->Filter.input_gain = a; - state->Filter.process = ALfilterState_processC; + for(i = 0;i < MAX_EFFECT_CHANNELS;i++) + { + state->Filter[i].a1 = -a; + state->Filter[i].a2 = 0.0f; + state->Filter[i].b1 = -a; + state->Filter[i].b2 = 0.0f; + state->Filter[i].input_gain = a; + state->Filter[i].process = ALfilterState_processC; + } - ComputeAmbientGains(Device->AmbiCoeffs, Device->NumChannels, Slot->Gain, state->Gain); + scale = Device->AmbiScale; + aluMatrixfSet(&matrix, + 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, scale, 0.0f, 0.0f, + 0.0f, 0.0f, scale, 0.0f, + 0.0f, 0.0f, 0.0f, scale + ); + for(i = 0;i < MAX_EFFECT_CHANNELS;i++) + ComputeBFormatGains(Device->AmbiCoeffs, Device->NumChannels, + matrix.m[i], Slot->Gain, state->Gain[i]); } static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALuint SamplesToDo, const ALfloat (*restrict SamplesIn)[BUFFERSIZE], ALfloat (*restrict SamplesOut)[BUFFERSIZE], ALuint NumChannels) @@ -130,19 +144,22 @@ static ALvoid ALmodulatorState_process(ALmodulatorState *state, ALuint SamplesTo { ALfloat temps[2][128]; ALuint td = minu(128, SamplesToDo-base); - ALuint i, k; + ALuint i, j, k; - ALfilterState_process(&state->Filter, temps[0], &SamplesIn[0][base], td); - state->Process(temps[1], temps[0], index, step, td); - - for(k = 0;k < NumChannels;k++) + for(j = 0;j < MAX_EFFECT_CHANNELS;j++) { - ALfloat gain = state->Gain[k]; - if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) - continue; - - for(i = 0;i < td;i++) - SamplesOut[k][base+i] += gain * temps[1][i]; + ALfilterState_process(&state->Filter[j], temps[0], &SamplesIn[j][base], td); + state->Process(temps[1], temps[0], index, step, td); + + for(k = 0;k < NumChannels;k++) + { + ALfloat gain = state->Gain[j][k]; + if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) + continue; + + for(i = 0;i < td;i++) + SamplesOut[k][base+i] += gain * temps[1][i]; + } } for(i = 0;i < td;i++) @@ -167,6 +184,7 @@ typedef struct ALmodulatorStateFactory { static ALeffectState *ALmodulatorStateFactory_create(ALmodulatorStateFactory *UNUSED(factory)) { ALmodulatorState *state; + ALuint i; state = ALmodulatorState_New(sizeof(*state)); if(!state) return NULL; @@ -175,7 +193,8 @@ static ALeffectState *ALmodulatorStateFactory_create(ALmodulatorStateFactory *UN state->index = 0; state->step = 1; - ALfilterState_clear(&state->Filter); + for(i = 0;i < MAX_EFFECT_CHANNELS;i++) + ALfilterState_clear(&state->Filter[i]); return STATIC_CAST(ALeffectState, state); } |