| /* |
| * Copyright (c) 2023, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include "aom_ports/arm.h" |
| #include "config/aom_config.h" |
| |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #if defined(_WIN32) |
| #undef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN |
| #undef WIN32_EXTRA_LEAN |
| #define WIN32_EXTRA_LEAN |
| #include <windows.h> |
| #endif |
| |
| #ifdef WINAPI_FAMILY |
| #include <winapifamily.h> |
| #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) |
| #define getenv(x) NULL |
| #endif |
| #endif |
| |
| #if defined(__ANDROID__) && (__ANDROID_API__ < 18) |
| #define ANDROID_USE_CPU_FEATURES_LIB 1 |
| // Use getauxval() when targeting (64-bit) Android with API level >= 18. |
| // getauxval() is supported since Android API level 18 (Android 4.3.) |
| // First Android version with 64-bit support was Android 5.x (API level 21). |
| #include <cpu-features.h> |
| #endif |
| |
| static bool arm_cpu_env_flags(int *flags) { |
| const char *env = getenv("AOM_SIMD_CAPS"); |
| if (env && *env) { |
| *flags = (int)strtol(env, NULL, 0); |
| return true; |
| } |
| return false; |
| } |
| |
| static int arm_cpu_env_mask(void) { |
| const char *env = getenv("AOM_SIMD_CAPS_MASK"); |
| return env && *env ? (int)strtol(env, NULL, 0) : ~0; |
| } |