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Diffstat (limited to '')
| -rw-r--r-- | spa/plugins/audiomixer/mix-ops-c.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/spa/plugins/audiomixer/mix-ops-c.c b/spa/plugins/audiomixer/mix-ops-c.c new file mode 100644 index 0000000..2f79cd8 --- /dev/null +++ b/spa/plugins/audiomixer/mix-ops-c.c @@ -0,0 +1,68 @@ +/* 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); |