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jack: align temp samples and use optimized mix

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This commit is contained in:
Wim Taymans 2019-01-24 18:25:44 +01:00
parent c404942e9d
commit 9a57598b83
1 changed files with 42 additions and 10 deletions
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52
src/pipewire-jack.c
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@ -191,7 +191,8 @@ struct port {
uint32_t rate;
bool zeroed;
float empty[BUFFER_SIZE_MAX + 8];
float *emptyptr;
float empty[BUFFER_SIZE_MAX + 15];
};
struct context {
@ -297,6 +298,8 @@ static void init_port_pool(struct client *c, enum spa_direction direction)
for (i = 0; i < MAX_PORTS; i++) {
c->port_pool[direction][i].direction = direction;
c->port_pool[direction][i].id = i;
c->port_pool[direction][i].emptyptr =
SPA_PTR_ALIGN(c->port_pool[direction][i].empty, 16, float);
spa_list_append(&c->free_ports[direction], &c->port_pool[direction][i].link);
}
}
@ -716,7 +719,7 @@ static void process_tee(struct client *c)
spa_list_for_each(mix, &p->mix, port_link) {
if (mix->notify == NULL)
continue;
convert_from_midi(p->empty, mix->notify, mix->notify_size);
convert_from_midi(p->emptyptr, mix->notify, mix->notify_size);
break;
}
}
@ -2211,12 +2214,41 @@ int jack_port_unregister (jack_client_t *client, jack_port_t *port)
return res;
}
static void add_f32(float *out, float *in1, float *in2, int n_samples)
#if defined (__SSE__)
#include <xmmintrin.h>
static void mix_2(float *dst, float *src1, float *src2, int n_samples)
{
int n, unrolled;
__m128 in[2];
if (SPA_IS_ALIGNED(src1, 16) &&
SPA_IS_ALIGNED(src2, 16) &&
SPA_IS_ALIGNED(dst, 16))
unrolled = n_samples / 4;
else
unrolled = 0;
for (n = 0; unrolled--; n += 4) {
in[0] = _mm_load_ps(&src1[n]),
in[1] = _mm_load_ps(&src2[n]),
in[0] = _mm_add_ps(in[0], in[1]);
_mm_store_ps(&dst[n], in[0]);
}
for (; n < n_samples; n++) {
in[0] = _mm_load_ss(&src1[n]),
in[1] = _mm_load_ss(&src2[n]),
in[0] = _mm_add_ss(in[0], in[1]);
_mm_store_ss(&dst[n], in[0]);
}
}
#else
static void mix_2(float *dst, float *src1, float *src2, int n_samples)
{
int i;
for (i = 0; i < n_samples; i++)
out[i] = in1[i] + in2[i];
dst[i] = src1[i] + src2[i];
}
#endif
static void *mix_audio(struct port *p, jack_nframes_t frames)
{
@ -2238,8 +2270,8 @@ static void *mix_audio(struct port *p, jack_nframes_t frames)
if (layer++ == 0)
ptr = b->datas[0].data;
else {
add_f32(p->empty, ptr, b->datas[0].data, frames);
ptr = p->empty;
ptr = p->emptyptr;
mix_2(ptr, ptr, b->datas[0].data, frames);
p->zeroed = false;
}
}
@ -2259,8 +2291,8 @@ static void *mix_midi(struct port *p, jack_nframes_t frames)
if (io == NULL)
continue;
convert_to_midi(&io->sequence, p->empty);
ptr = p->empty;
ptr = p->emptyptr;
convert_to_midi(&io->sequence, ptr);
break;
}
return ptr;
@ -2327,9 +2359,9 @@ void * jack_port_get_buffer (jack_port_t *port, jack_nframes_t frames)
done:
if (ptr == NULL) {
ptr = p->empty;
ptr = p->emptyptr;
if (!p->zeroed) {
init_buffer(p, ptr, sizeof(p->empty));
init_buffer(p, p->empty, sizeof(p->empty));
p->zeroed = true;
}
}