mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
d22feab92a
uint32_t i; for (i = 0; i < SPA_N_ELEMENTS(some_array); i++) .. stuff with some_array[i].foo ... becomes: SPA_FOR_EACH_ELEMENT_VAR(some_array, p) .. stuff with p->foo ..
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/* Spa
|
|
*
|
|
* Copyright © 2021 Wim Taymans
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
|
|
#include <spa/param/audio/format-utils.h>
|
|
#include <spa/support/cpu.h>
|
|
#include <spa/support/log.h>
|
|
#include <spa/utils/defs.h>
|
|
|
|
#include "volume-ops.h"
|
|
|
|
typedef void (*volume_func_t) (struct volume *vol, void * SPA_RESTRICT dst,
|
|
const void * SPA_RESTRICT src, float volume, uint32_t n_samples);
|
|
|
|
#define MAKE(func,...) \
|
|
{ func, #func , __VA_ARGS__ }
|
|
|
|
static const struct volume_info {
|
|
volume_func_t process;
|
|
const char *name;
|
|
uint32_t cpu_flags;
|
|
} volume_table[] =
|
|
{
|
|
#if defined (HAVE_SSE)
|
|
MAKE(volume_f32_sse, SPA_CPU_FLAG_SSE),
|
|
#endif
|
|
MAKE(volume_f32_c),
|
|
};
|
|
#undef MAKE
|
|
|
|
#define MATCH_CPU_FLAGS(a,b) ((a) == 0 || ((a) & (b)) == a)
|
|
|
|
static const struct volume_info *find_volume_info(uint32_t cpu_flags)
|
|
{
|
|
SPA_FOR_EACH_ELEMENT_VAR(volume_table, t) {
|
|
if (MATCH_CPU_FLAGS(t->cpu_flags, cpu_flags))
|
|
return t;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void impl_volume_free(struct volume *vol)
|
|
{
|
|
vol->process = NULL;
|
|
}
|
|
|
|
int volume_init(struct volume *vol)
|
|
{
|
|
const struct volume_info *info;
|
|
|
|
info = find_volume_info(vol->cpu_flags);
|
|
if (info == NULL)
|
|
return -ENOTSUP;
|
|
|
|
vol->cpu_flags = info->cpu_flags;
|
|
vol->func_name = info->name;
|
|
vol->free = impl_volume_free;
|
|
vol->process = info->process;
|
|
return 0;
|
|
}
|