diff options
Diffstat (limited to 'third_party/aom/aom_ports/arm_cpudetect.h')
-rw-r--r-- | third_party/aom/aom_ports/arm_cpudetect.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/aom/aom_ports/arm_cpudetect.h b/third_party/aom/aom_ports/arm_cpudetect.h new file mode 100644 index 0000000000..33c2d1bb6a --- /dev/null +++ b/third_party/aom/aom_ports/arm_cpudetect.h @@ -0,0 +1,54 @@ +/* + * 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; +} |