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jack: select sse only when cpu flags available

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This commit is contained in:
Wim Taymans 2019-01-28 17:10:37 +01:00
parent 1cf3e01219
commit 13d51dfe37
1 changed files with 57 additions and 37 deletions
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94
src/pipewire-jack.c
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@ -32,6 +32,7 @@
#include <jack/thread.h>
#include <jack/midiport.h>
#include <spa/support/cpu.h>
#include <spa/param/audio/format-utils.h>
#include <spa/debug/types.h>
#include <spa/debug/pod.h>
@ -77,6 +78,10 @@ static struct globals globals;
#define OBJECT_CHUNK 8
typedef void (*mix2_func) (float *dst, float *src1, float *src2, int n_samples);
static mix2_func mix2;
struct object {
struct spa_list link;
@ -448,6 +453,42 @@ static struct buffer *dequeue_buffer(struct mix *mix)
return b;
}
#if defined (__SSE__)
#include <xmmintrin.h>
static void mix2_sse(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]);
}
}
#endif
static void mix2_c(float *dst, float *src1, float *src2, int n_samples)
{
int i;
for (i = 0; i < n_samples; i++)
dst[i] = src1[i] + src2[i];
}
void jack_get_version(int *major_ptr, int *minor_ptr, int *micro_ptr, int *proto_ptr)
{
*major_ptr = 0;
@ -1630,7 +1671,10 @@ jack_client_t * jack_client_open (const char *client_name,
bool busy = true;
struct spa_dict props;
struct spa_dict_item items[5];
const struct spa_support *support;
uint32_t n_support;
const char *str;
struct spa_cpu *cpu_iface;
int i;
if (getenv("PIPEWIRE_NOJACK") != NULL)
@ -1652,6 +1696,18 @@ jack_client_t * jack_client_open (const char *client_name,
spa_list_init(&client->context.ports);
spa_list_init(&client->context.links);
support = pw_core_get_support(client->context.core, &n_support);
mix2 = mix2_c;
cpu_iface = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_CPU);
if (cpu_iface) {
uint32_t flags = spa_cpu_get_flags(cpu_iface);
#if defined (__SSE__)
if (flags & SPA_CPU_FLAG_SSE)
mix2 = mix2_sse;
#endif
}
pw_array_init(&client->mems, 64);
pw_array_ensure_size(&client->mems, sizeof(struct mem) * 64);
@ -2214,42 +2270,6 @@ int jack_port_unregister (jack_client_t *client, jack_port_t *port)
return res;
}
#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++)
dst[i] = src1[i] + src2[i];
}
#endif
static void *mix_audio(struct port *p, jack_nframes_t frames)
{
struct mix *mix;
@ -2271,7 +2291,7 @@ static void *mix_audio(struct port *p, jack_nframes_t frames)
ptr = b->datas[0].data;
else {
ptr = p->emptyptr;
mix_2(ptr, ptr, b->datas[0].data, frames);
mix2(ptr, ptr, b->datas[0].data, frames);
p->zeroed = false;
}
}