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author | Matt A. Tobin <email@mattatobin.com> | 2020-04-07 23:30:51 -0400 |
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committer | Matt A. Tobin <email@mattatobin.com> | 2020-04-07 23:30:51 -0400 |
commit | 5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb (patch) | |
tree | 45d55e3e5e73c4255c4d71258d9be5b2d004d28f /third_party/aom/aom_ports/arm_cpudetect.c | |
parent | 50f1986697a7412e4160976fa5e11217b4ef1f44 (diff) | |
download | UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.gz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.lz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.tar.xz UXP-5545a8983ff0ef1fb52e64aef8e66fa9b13c1cbb.zip |
Move aom source to a sub-directory under media/libaom
There is no damned reason to treat this differently than any other media lib given its license and there never was.
Diffstat (limited to 'third_party/aom/aom_ports/arm_cpudetect.c')
-rw-r--r-- | third_party/aom/aom_ports/arm_cpudetect.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/third_party/aom/aom_ports/arm_cpudetect.c b/third_party/aom/aom_ports/arm_cpudetect.c deleted file mode 100644 index 5a75bb348..000000000 --- a/third_party/aom/aom_ports/arm_cpudetect.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright (c) 2016, 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 <stdlib.h> -#include <string.h> -#include "aom_ports/arm.h" -#include "config/aom_config.h" - -#ifdef WINAPI_FAMILY -#include <winapifamily.h> -#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) -#define getenv(x) NULL -#endif -#endif - -static int arm_cpu_env_flags(int *flags) { - char *env; - env = getenv("AOM_SIMD_CAPS"); - if (env && *env) { - *flags = (int)strtol(env, NULL, 0); - return 0; - } - *flags = 0; - return -1; -} - -static int arm_cpu_env_mask(void) { - char *env; - env = getenv("AOM_SIMD_CAPS_MASK"); - return env && *env ? (int)strtol(env, NULL, 0) : ~0; -} - -#if !CONFIG_RUNTIME_CPU_DETECT - -int aom_arm_cpu_caps(void) { - /* This function should actually be a no-op. There is no way to adjust any of - * these because the RTCD tables do not exist: the functions are called - * statically */ - int flags; - int mask; - if (!arm_cpu_env_flags(&flags)) { - return flags; - } - mask = arm_cpu_env_mask(); -#if HAVE_NEON - flags |= HAS_NEON; -#endif /* HAVE_NEON */ - return flags & mask; -} - -#elif defined(_MSC_VER) /* end !CONFIG_RUNTIME_CPU_DETECT */ -/*For GetExceptionCode() and EXCEPTION_ILLEGAL_INSTRUCTION.*/ -#define WIN32_LEAN_AND_MEAN -#define WIN32_EXTRA_LEAN -#include <windows.h> - -int aom_arm_cpu_caps(void) { - int flags; - int mask; - if (!arm_cpu_env_flags(&flags)) { - return flags; - } - mask = arm_cpu_env_mask(); -/* MSVC has no inline __asm support for ARM, but it does let you __emit - * instructions via their assembled hex code. - * All of these instructions should be essentially nops. - */ -#if HAVE_NEON - if (mask & HAS_NEON) { - __try { - /*VORR q0,q0,q0*/ - __emit(0xF2200150); - flags |= HAS_NEON; - } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) { - /*Ignore exception.*/ - } - } -#endif /* HAVE_NEON */ - return flags & mask; -} - -#elif defined(__ANDROID__) /* end _MSC_VER */ -#include <cpu-features.h> - -int aom_arm_cpu_caps(void) { - int flags; - int mask; - uint64_t features; - if (!arm_cpu_env_flags(&flags)) { - return flags; - } - mask = arm_cpu_env_mask(); - features = android_getCpuFeatures(); - -#if HAVE_NEON - if (features & ANDROID_CPU_ARM_FEATURE_NEON) flags |= HAS_NEON; -#endif /* HAVE_NEON */ - return flags & mask; -} - -#elif defined(__linux__) /* end __ANDROID__ */ - -#include <stdio.h> - -int aom_arm_cpu_caps(void) { - FILE *fin; - int flags; - int mask; - if (!arm_cpu_env_flags(&flags)) { - return flags; - } - mask = arm_cpu_env_mask(); - /* Reading /proc/self/auxv would be easier, but that doesn't work reliably - * on Android. - * This also means that detection will fail in Scratchbox. - */ - fin = fopen("/proc/cpuinfo", "r"); - if (fin != NULL) { - /* 512 should be enough for anybody (it's even enough for all the flags - * that x86 has accumulated... so far). - */ - char buf[512]; - while (fgets(buf, 511, fin) != NULL) { -#if HAVE_NEON - if (memcmp(buf, "Features", 8) == 0) { - char *p; - p = strstr(buf, " neon"); - if (p != NULL && (p[5] == ' ' || p[5] == '\n')) { - flags |= HAS_NEON; - } - } -#endif /* HAVE_NEON */ - } - fclose(fin); - } - return flags & mask; -} -#else /* end __linux__ */ -#error \ - "--enable-runtime-cpu-detect selected, but no CPU detection method " \ -"available for your platform. Reconfigure with --disable-runtime-cpu-detect." -#endif |