mirror of
https://gitlab.freedesktop.org/pipewire/pipewire
synced 2024-10-14 11:53:16 +00:00
934ab3036e
SPDX tags make the licensing information easy to understand and clear, and they are machine parseable. See https://spdx.dev for more information.
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/* Spa */
|
|
/* SPDX-FileCopyrightText: Copyright © 2019 Wim Taymans */
|
|
/* SPDX-License-Identifier: MIT */
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
|
|
#include <spa/support/cpu.h>
|
|
#include <spa/utils/defs.h>
|
|
#include <spa/param/audio/format-utils.h>
|
|
|
|
#include "mix-ops.h"
|
|
|
|
typedef void (*mix_func_t) (struct mix_ops *ops, void * SPA_RESTRICT dst,
|
|
const void * SPA_RESTRICT src[], uint32_t n_src, uint32_t n_samples);
|
|
|
|
struct mix_info {
|
|
uint32_t fmt;
|
|
uint32_t n_channels;
|
|
uint32_t cpu_flags;
|
|
uint32_t stride;
|
|
mix_func_t process;
|
|
};
|
|
|
|
static struct mix_info mix_table[] =
|
|
{
|
|
/* f32 */
|
|
#if defined(HAVE_AVX)
|
|
{ SPA_AUDIO_FORMAT_F32, 0, SPA_CPU_FLAG_AVX, 4, mix_f32_avx },
|
|
{ SPA_AUDIO_FORMAT_F32P, 0, SPA_CPU_FLAG_AVX, 4, mix_f32_avx },
|
|
#endif
|
|
#if defined (HAVE_SSE)
|
|
{ SPA_AUDIO_FORMAT_F32, 0, SPA_CPU_FLAG_SSE, 4, mix_f32_sse },
|
|
{ SPA_AUDIO_FORMAT_F32P, 0, SPA_CPU_FLAG_SSE, 4, mix_f32_sse },
|
|
#endif
|
|
{ SPA_AUDIO_FORMAT_F32, 0, 0, 4, mix_f32_c },
|
|
{ SPA_AUDIO_FORMAT_F32P, 0, 0, 4, mix_f32_c },
|
|
|
|
/* f64 */
|
|
#if defined (HAVE_SSE2)
|
|
{ SPA_AUDIO_FORMAT_F64, 0, SPA_CPU_FLAG_SSE2, 8, mix_f64_sse2 },
|
|
{ SPA_AUDIO_FORMAT_F64P, 0, SPA_CPU_FLAG_SSE2, 8, mix_f64_sse2 },
|
|
#endif
|
|
{ SPA_AUDIO_FORMAT_F64, 0, 0, 8, mix_f64_c },
|
|
{ SPA_AUDIO_FORMAT_F64P, 0, 0, 8, mix_f64_c },
|
|
|
|
/* s8 */
|
|
{ SPA_AUDIO_FORMAT_S8, 0, 0, 1, mix_s8_c },
|
|
{ SPA_AUDIO_FORMAT_S8P, 0, 0, 1, mix_s8_c },
|
|
{ SPA_AUDIO_FORMAT_U8, 0, 0, 1, mix_u8_c },
|
|
{ SPA_AUDIO_FORMAT_U8P, 0, 0, 1, mix_u8_c },
|
|
|
|
/* s16 */
|
|
{ SPA_AUDIO_FORMAT_S16, 0, 0, 2, mix_s16_c },
|
|
{ SPA_AUDIO_FORMAT_S16P, 0, 0, 2, mix_s16_c },
|
|
{ SPA_AUDIO_FORMAT_U16, 0, 0, 2, mix_u16_c },
|
|
|
|
/* s24 */
|
|
{ SPA_AUDIO_FORMAT_S24, 0, 0, 3, mix_s24_c },
|
|
{ SPA_AUDIO_FORMAT_S24P, 0, 0, 3, mix_s24_c },
|
|
{ SPA_AUDIO_FORMAT_U24, 0, 0, 3, mix_u24_c },
|
|
|
|
/* s32 */
|
|
{ SPA_AUDIO_FORMAT_S32, 0, 0, 4, mix_s32_c },
|
|
{ SPA_AUDIO_FORMAT_S32P, 0, 0, 4, mix_s32_c },
|
|
{ SPA_AUDIO_FORMAT_U32, 0, 0, 4, mix_u32_c },
|
|
|
|
/* s24_32 */
|
|
{ SPA_AUDIO_FORMAT_S24_32, 0, 0, 4, mix_s24_32_c },
|
|
{ SPA_AUDIO_FORMAT_S24_32P, 0, 0, 4, mix_s24_32_c },
|
|
{ SPA_AUDIO_FORMAT_U24_32, 0, 0, 4, mix_u24_32_c },
|
|
};
|
|
|
|
#define MATCH_CHAN(a,b) ((a) == 0 || (a) == (b))
|
|
#define MATCH_CPU_FLAGS(a,b) ((a) == 0 || ((a) & (b)) == a)
|
|
|
|
static const struct mix_info *find_mix_info(uint32_t fmt,
|
|
uint32_t n_channels, uint32_t cpu_flags)
|
|
{
|
|
SPA_FOR_EACH_ELEMENT_VAR(mix_table, t) {
|
|
if (t->fmt == fmt &&
|
|
MATCH_CHAN(t->n_channels, n_channels) &&
|
|
MATCH_CPU_FLAGS(t->cpu_flags, cpu_flags))
|
|
return t;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void impl_mix_ops_clear(struct mix_ops *ops, void * SPA_RESTRICT dst, uint32_t n_samples)
|
|
{
|
|
const struct mix_info *info = ops->priv;
|
|
memset(dst, 0, n_samples * info->stride);
|
|
}
|
|
|
|
static void impl_mix_ops_free(struct mix_ops *ops)
|
|
{
|
|
spa_zero(*ops);
|
|
}
|
|
|
|
int mix_ops_init(struct mix_ops *ops)
|
|
{
|
|
const struct mix_info *info;
|
|
|
|
info = find_mix_info(ops->fmt, ops->n_channels, ops->cpu_flags);
|
|
if (info == NULL)
|
|
return -ENOTSUP;
|
|
|
|
ops->priv = info;
|
|
ops->cpu_flags = info->cpu_flags;
|
|
ops->clear = impl_mix_ops_clear;
|
|
ops->process = info->process;
|
|
ops->free = impl_mix_ops_free;
|
|
|
|
return 0;
|
|
}
|