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/* Spa
*
* Copyright © 2019 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/utils/defs.h>
#include "mix-ops.h"
#define MAKE_FUNC(name,type,atype,accum,clamp,zero) \
void mix_ ##name## _c(struct mix_ops *ops, \
void * SPA_RESTRICT dst, const void * SPA_RESTRICT src[], \
uint32_t n_src, uint32_t n_samples) \
{ \
uint32_t i, n; \
type *d = dst; \
const type **s = (const type **)src; \
n_samples *= ops->n_channels; \
if (n_src == 0 && zero) \
memset(dst, 0, n_samples * sizeof(type)); \
else if (n_src == 1) { \
if (dst != src[0]) \
spa_memcpy(dst, src[0], n_samples * sizeof(type)); \
} else { \
for (n = 0; n < n_samples; n++) { \
atype ac = 0; \
for (i = 0; i < n_src; i++) \
ac = accum (ac, s[i][n]); \
d[n] = clamp (ac); \
} \
} \
}
MAKE_FUNC(s8, int8_t, int16_t, S8_ACCUM, S8_CLAMP, true);
MAKE_FUNC(u8, uint8_t, int16_t, U8_ACCUM, U8_CLAMP, false);
MAKE_FUNC(s16, int16_t, int32_t, S16_ACCUM, S16_CLAMP, true);
MAKE_FUNC(u16, uint16_t, int16_t, U16_ACCUM, U16_CLAMP, false);
MAKE_FUNC(s24, int24_t, int32_t, S24_ACCUM, S24_CLAMP, false);
MAKE_FUNC(u24, uint24_t, int32_t, U24_ACCUM, U24_CLAMP, false);
MAKE_FUNC(s32, int32_t, int64_t, S32_ACCUM, S32_CLAMP, true);
MAKE_FUNC(u32, uint32_t, int64_t, U32_ACCUM, U32_CLAMP, false);
MAKE_FUNC(s24_32, int32_t, int32_t, S24_32_ACCUM, S24_32_CLAMP, true);
MAKE_FUNC(u24_32, uint32_t, int32_t, U24_32_ACCUM, U24_32_CLAMP, false);
MAKE_FUNC(f32, float, float, F32_ACCUM, F32_CLAMP, true);
MAKE_FUNC(f64, double, double, F64_ACCUM, F64_CLAMP, true);
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