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/*
* 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;
}
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