diff options
Diffstat (limited to 'Alc/effects/autowah.c')
| -rw-r--r-- | Alc/effects/autowah.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/Alc/effects/autowah.c b/Alc/effects/autowah.c index d7cb662a..5a222bfd 100644 --- a/Alc/effects/autowah.c +++ b/Alc/effects/autowah.c @@ -46,8 +46,10 @@ typedef struct ALautowahState { ALfloat env_delay; /* Filter components derived from the envelope. */ - ALfloat Alpha[BUFFERSIZE]; - ALfloat CosW0[BUFFERSIZE]; + struct { + ALfloat cos_w0; + ALfloat alpha; + } Env[BUFFERSIZE]; struct { /* Effect filters' history. */ @@ -96,6 +98,8 @@ static ALboolean ALautowahState_deviceUpdate(ALautowahState *state, ALCdevice *U state->BandwidthNorm = 0.05f; state->env_delay = 0.0f; + memset(state->Env, 0, sizeof(state->Env)); + for(i = 0;i < MAX_EFFECT_CHANNELS;i++) { for(j = 0;j < MAX_OUTPUT_CHANNELS;j++) @@ -154,8 +158,8 @@ static ALvoid ALautowahState_process(ALautowahState *state, ALsizei SamplesToDo, /* Calculate the cos and alpha components for this sample's filter. */ w0 = minf((bandwidth*env_delay + freq_min), 0.46f) * F_TAU; - state->CosW0[i] = cosf(w0); - state->Alpha[i] = sinf(w0)/(2.0f * Q_FACTOR); + state->Env[i].cos_w0 = cosf(w0); + state->Env[i].alpha = sinf(w0)/(2.0f * Q_FACTOR); } state->env_delay = env_delay; @@ -173,8 +177,8 @@ static ALvoid ALautowahState_process(ALautowahState *state, ALsizei SamplesToDo, for(i = 0;i < SamplesToDo;i++) { - const ALfloat alpha = state->Alpha[i]; - const ALfloat cos_w0 = state->CosW0[i]; + const ALfloat alpha = state->Env[i].alpha; + const ALfloat cos_w0 = state->Env[i].cos_w0; ALfloat input, output; ALfloat a[3], b[3]; |