1 /* Copyright (C) 2010-2018 The RetroArch team 2 * 3 * --------------------------------------------------------------------------------------- 4 * The following license statement only applies to this file (s16_to_float.h). 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 #ifndef __LIBRETRO_SDK_CONVERSION_S16_TO_FLOAT_H__ 23 #define __LIBRETRO_SDK_CONVERSION_S16_TO_FLOAT_H__ 24 25 #include <stdint.h> 26 #include <stddef.h> 27 28 #include <retro_common_api.h> 29 30 RETRO_BEGIN_DECLS 31 32 /** 33 * convert_s16_to_float: 34 * @out : output buffer 35 * @in : input buffer 36 * @samples : size of samples to be converted 37 * @gain : gain applied (.e.g. audio volume) 38 * 39 * Converts from signed integer 16-bit 40 * to floating point. 41 **/ 42 void convert_s16_to_float(float *out, 43 const int16_t *in, size_t samples, float gain); 44 45 /** 46 * convert_s16_to_float_init_simd: 47 * 48 * Sets up function pointers for conversion 49 * functions based on CPU features. 50 **/ 51 void convert_s16_to_float_init_simd(void); 52 53 RETRO_END_DECLS 54 55 #endif 56