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authorChris Robinson <[email protected]>2014-06-10 12:46:58 -0700
committerChris Robinson <[email protected]>2014-06-10 12:46:58 -0700
commitdfded9595cb878c350a8852066601a921a3c2c44 (patch)
treea801301a9cb5158e341e8520edc9d6782e0c5f38 /Alc
parentd0fac3fe1d321856e61534d55ef5ad4b127f16c9 (diff)
Make bs2b_cross_feed inline
Diffstat (limited to 'Alc')
-rw-r--r--Alc/bs2b.c45
1 files changed, 2 insertions, 43 deletions
diff --git a/Alc/bs2b.c b/Alc/bs2b.c
index 0319f948..d5913de6 100644
--- a/Alc/bs2b.c
+++ b/Alc/bs2b.c
@@ -32,16 +32,6 @@
#define M_PI 3.14159265358979323846
#endif
-/* Single pole IIR filter.
- * O[n] = a0*I[n] + a1*I[n-1] + b1*O[n-1]
- */
-
-/* Lowpass filter */
-#define lo_filter(in, out_1) (bs2b->a0_lo*(in) + bs2b->b1_lo*(out_1))
-
-/* Highboost filter */
-#define hi_filter(in, in_1, out_1) (bs2b->a0_hi*(in) + bs2b->a1_hi*(in_1) + bs2b->b1_hi*(out_1))
-
/* Set up all data. */
static void init(struct bs2b *bs2b)
{
@@ -49,7 +39,7 @@ static void init(struct bs2b *bs2b)
double G_lo, G_hi;
double x;
- if ((bs2b->srate > 192000) || (bs2b->srate < 2000))
+ if(bs2b->srate > 192000 || bs2b->srate < 2000)
bs2b->srate = BS2B_DEFAULT_SRATE;
switch(bs2b->level)
@@ -151,35 +141,4 @@ void bs2b_clear(struct bs2b *bs2b)
memset(&bs2b->last_sample, 0, sizeof(bs2b->last_sample));
} /* bs2b_clear */
-void bs2b_cross_feed(struct bs2b *bs2b, float *sample)
-{
- /* Lowpass filter */
- bs2b->last_sample.lo[0] = lo_filter(sample[0], bs2b->last_sample.lo[0]);
- bs2b->last_sample.lo[1] = lo_filter(sample[1], bs2b->last_sample.lo[1]);
-
- /* Highboost filter */
- bs2b->last_sample.hi[0] = hi_filter(sample[0], bs2b->last_sample.asis[0], bs2b->last_sample.hi[0]);
- bs2b->last_sample.hi[1] = hi_filter(sample[1], bs2b->last_sample.asis[1], bs2b->last_sample.hi[1]);
- bs2b->last_sample.asis[0] = sample[0];
- bs2b->last_sample.asis[1] = sample[1];
-
- /* Crossfeed */
- sample[0] = (float)(bs2b->last_sample.hi[0] + bs2b->last_sample.lo[1]);
- sample[1] = (float)(bs2b->last_sample.hi[1] + bs2b->last_sample.lo[0]);
-
- /* Bass boost cause allpass attenuation */
- sample[0] *= bs2b->gain;
- sample[1] *= bs2b->gain;
-
- /* Clipping of overloaded samples */
-#if 0
- if (sample[0] > 1.0)
- sample[0] = 1.0;
- if (sample[0] < -1.0)
- sample[0] = -1.0;
- if (sample[1] > 1.0)
- sample[1] = 1.0;
- if (sample[1] < -1.0)
- sample[1] = -1.0;
-#endif
-} /* bs2b_cross_feed */
+extern inline void bs2b_cross_feed(struct bs2b *bs2b, float *restrict samples);