1 /* Copyright (C) 2010-2017 The RetroArch team 2 * 3 * --------------------------------------------------------------------------------------- 4 * The following license statement only applies to this file (features_cpu.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 23 #ifndef _LIBRETRO_SDK_CPU_INFO_H 24 #define _LIBRETRO_SDK_CPU_INFO_H 25 26 #include <retro_common_api.h> 27 28 #include <stdint.h> 29 30 #include <libretro.h> 31 32 RETRO_BEGIN_DECLS 33 34 /** 35 * cpu_features_get_perf_counter: 36 * 37 * Gets performance counter. 38 * 39 * Returns: performance counter. 40 **/ 41 retro_perf_tick_t cpu_features_get_perf_counter(void); 42 43 /** 44 * cpu_features_get_time_usec: 45 * 46 * Gets time in microseconds, from an undefined epoch. 47 * The epoch may change between computers or across reboots. 48 * 49 * Returns: time in microseconds 50 **/ 51 retro_time_t cpu_features_get_time_usec(void); 52 53 /** 54 * cpu_features_get: 55 * 56 * Gets CPU features. 57 * 58 * Returns: bitmask of all CPU features available. 59 **/ 60 uint64_t cpu_features_get(void); 61 62 /** 63 * cpu_features_get_core_amount: 64 * 65 * Gets the amount of available CPU cores. 66 * 67 * Returns: amount of CPU cores available. 68 **/ 69 unsigned cpu_features_get_core_amount(void); 70 71 RETRO_END_DECLS 72 73 #endif 74