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/* 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;
}
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