| Index: third_party/libvpx/source/libvpx/third_party/libyuv/include/libyuv/cpu_id.h
|
| diff --git a/third_party/libvpx/source/libvpx/third_party/libyuv/include/libyuv/cpu_id.h b/third_party/libvpx/source/libvpx/third_party/libyuv/include/libyuv/cpu_id.h
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| new file mode 100644
|
| index 0000000000000000000000000000000000000000..dc858a814aee9d9111741683e923ab28589e5aa4
|
| --- /dev/null
|
| +++ b/third_party/libvpx/source/libvpx/third_party/libyuv/include/libyuv/cpu_id.h
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| @@ -0,0 +1,81 @@
|
| +/*
|
| + * Copyright 2011 The LibYuv Project Authors. All rights reserved.
|
| + *
|
| + * Use of this source code is governed by a BSD-style license
|
| + * that can be found in the LICENSE file in the root of the source
|
| + * tree. An additional intellectual property rights grant can be found
|
| + * in the file PATENTS. All contributing project authors may
|
| + * be found in the AUTHORS file in the root of the source tree.
|
| + */
|
| +
|
| +#ifndef INCLUDE_LIBYUV_CPU_ID_H_ // NOLINT
|
| +#define INCLUDE_LIBYUV_CPU_ID_H_
|
| +
|
| +#include "libyuv/basic_types.h"
|
| +
|
| +#ifdef __cplusplus
|
| +namespace libyuv {
|
| +extern "C" {
|
| +#endif
|
| +
|
| +// TODO(fbarchard): Consider overlapping bits for different architectures.
|
| +// Internal flag to indicate cpuid requires initialization.
|
| +#define kCpuInit 0x1
|
| +
|
| +// These flags are only valid on ARM processors.
|
| +static const int kCpuHasARM = 0x2;
|
| +static const int kCpuHasNEON = 0x4;
|
| +// 0x8 reserved for future ARM flag.
|
| +
|
| +// These flags are only valid on x86 processors.
|
| +static const int kCpuHasX86 = 0x10;
|
| +static const int kCpuHasSSE2 = 0x20;
|
| +static const int kCpuHasSSSE3 = 0x40;
|
| +static const int kCpuHasSSE41 = 0x80;
|
| +static const int kCpuHasSSE42 = 0x100;
|
| +static const int kCpuHasAVX = 0x200;
|
| +static const int kCpuHasAVX2 = 0x400;
|
| +static const int kCpuHasERMS = 0x800;
|
| +static const int kCpuHasFMA3 = 0x1000;
|
| +// 0x2000, 0x4000, 0x8000 reserved for future X86 flags.
|
| +
|
| +// These flags are only valid on MIPS processors.
|
| +static const int kCpuHasMIPS = 0x10000;
|
| +static const int kCpuHasMIPS_DSP = 0x20000;
|
| +static const int kCpuHasMIPS_DSPR2 = 0x40000;
|
| +
|
| +// Internal function used to auto-init.
|
| +LIBYUV_API
|
| +int InitCpuFlags(void);
|
| +
|
| +// Internal function for parsing /proc/cpuinfo.
|
| +LIBYUV_API
|
| +int ArmCpuCaps(const char* cpuinfo_name);
|
| +
|
| +// Detect CPU has SSE2 etc.
|
| +// Test_flag parameter should be one of kCpuHas constants above.
|
| +// returns non-zero if instruction set is detected
|
| +static __inline int TestCpuFlag(int test_flag) {
|
| + LIBYUV_API extern int cpu_info_;
|
| + return (cpu_info_ == kCpuInit ? InitCpuFlags() : cpu_info_) & test_flag;
|
| +}
|
| +
|
| +// For testing, allow CPU flags to be disabled.
|
| +// ie MaskCpuFlags(~kCpuHasSSSE3) to disable SSSE3.
|
| +// MaskCpuFlags(-1) to enable all cpu specific optimizations.
|
| +// MaskCpuFlags(0) to disable all cpu specific optimizations.
|
| +LIBYUV_API
|
| +void MaskCpuFlags(int enable_flags);
|
| +
|
| +// Low level cpuid for X86. Returns zeros on other CPUs.
|
| +// eax is the info type that you want.
|
| +// ecx is typically the cpu number, and should normally be zero.
|
| +LIBYUV_API
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| +void CpuId(uint32 eax, uint32 ecx, uint32* cpu_info);
|
| +
|
| +#ifdef __cplusplus
|
| +} // extern "C"
|
| +} // namespace libyuv
|
| +#endif
|
| +
|
| +#endif // INCLUDE_LIBYUV_CPU_ID_H_ NOLINT
|
|
|