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Updated OpenAL Soft to 1.17.2.

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This commit is contained in:
Alex Szpakowski
2016-10-29 16:12:27 -03:00
parent 8bdcc87460
commit 3dd3f1074b
30 changed files with 721 additions and 296 deletions
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libs/openal-soft/OpenAL32/Include/alFilter.h
+33 -9
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@@ -42,8 +42,9 @@ typedef enum ALfilterType {
typedef struct ALfilterState {
ALfloat x[2]; /* History of two last input samples */
ALfloat y[2]; /* History of two last output samples */
ALfloat a[3]; /* Transfer function coefficients "a" */
ALfloat b[3]; /* Transfer function coefficients "b" */
ALfloat a1, a2; /* Transfer function coefficients "a" (a0 is pre-applied) */
ALfloat b1, b2; /* Transfer function coefficients "b" (b0 is input_gain) */
ALfloat input_gain;
void (*process)(struct ALfilterState *self, ALfloat *restrict dst, const ALfloat *src, ALuint numsamples);
} ALfilterState;
@@ -68,18 +69,25 @@ inline ALfloat calc_rcpQ_from_bandwidth(ALfloat freq_mult, ALfloat bandwidth)
return 2.0f*sinhf(logf(2.0f)/2.0f*bandwidth*w0/sinf(w0));
}
void ALfilterState_clear(ALfilterState *filter);
inline void ALfilterState_clear(ALfilterState *filter)
{
filter->x[0] = 0.0f;
filter->x[1] = 0.0f;
filter->y[0] = 0.0f;
filter->y[1] = 0.0f;
}
void ALfilterState_setParams(ALfilterState *filter, ALfilterType type, ALfloat gain, ALfloat freq_mult, ALfloat rcpQ);
inline ALfloat ALfilterState_processSingle(ALfilterState *filter, ALfloat sample)
{
ALfloat outsmp;
outsmp = filter->b[0] * sample +
filter->b[1] * filter->x[0] +
filter->b[2] * filter->x[1] -
filter->a[1] * filter->y[0] -
filter->a[2] * filter->y[1];
outsmp = filter->input_gain * sample +
filter->b1 * filter->x[0] +
filter->b2 * filter->x[1] -
filter->a1 * filter->y[0] -
filter->a2 * filter->y[1];
filter->x[1] = filter->x[0];
filter->x[0] = sample;
filter->y[1] = filter->y[0];
@@ -90,7 +98,23 @@ inline ALfloat ALfilterState_processSingle(ALfilterState *filter, ALfloat sample
void ALfilterState_processC(ALfilterState *filter, ALfloat *restrict dst, const ALfloat *src, ALuint numsamples);
void ALfilterState_processPassthru(ALfilterState *filter, const ALfloat *src, ALuint numsamples);
inline void ALfilterState_processPassthru(ALfilterState *filter, const ALfloat *src, ALuint numsamples)
{
if(numsamples >= 2)
{
filter->x[1] = src[numsamples-2];
filter->x[0] = src[numsamples-1];
filter->y[1] = src[numsamples-2];
filter->y[0] = src[numsamples-1];
}
else if(numsamples == 1)
{
filter->x[1] = filter->x[0];
filter->x[0] = src[0];
filter->y[1] = filter->y[0];
filter->y[0] = src[0];
}
}
typedef struct ALfilter {