notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 3719602c PC |
1 | /* Copyright (C) 2010-2023 The RetroArch team |
| 2 | * | |
| 3 | * --------------------------------------------------------------------------------------- | |
| 4 | * The following license statement only applies to this file (mono_to_stereo.c). | |
| 5 | * --------------------------------------------------------------------------------------- | |
| 6 | * | |
| 7 | * Permission is hereby granted, free of charge, | |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
| 9 | * to deal in the Software without restriction, including without limitation the rights to | |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| 12 | * | |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| 14 | * | |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| 21 | */ | |
| 22 | #include <stdint.h> | |
| 23 | #include <stddef.h> | |
| 24 | ||
| 25 | #include <audio/conversion/dual_mono.h> | |
| 26 | ||
| 27 | /* TODO: Use SIMD instructions to make this faster (or show that it's not needed) */ | |
| 28 | void convert_to_mono_float_left(float *out, const float *in, size_t frames) | |
| 29 | { | |
| 30 | unsigned i = 0; | |
| 31 | ||
| 32 | if (!out || !in || !frames) | |
| 33 | return; | |
| 34 | ||
| 35 | for (; i < frames; i++) | |
| 36 | { | |
| 37 | out[i] = in[i * 2]; | |
| 38 | } | |
| 39 | } | |
| 40 | ||
| 41 | /* Why is there no equivalent for int16_t samples? | |
| 42 | * No inherent reason, I just didn't need one. | |
| 43 | * If you do, open a pull request. | |
| 44 | * Same goes for the lack of a convert_to_mono_float_right; | |
| 45 | * I didn't need one, so I didn't write one. */ |