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/*
* Copyright (c) 2011 The WebRTC 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 SYSTEM_WRAPPERS_INCLUDE_CPU_FEATURES_WRAPPER_H_
#define SYSTEM_WRAPPERS_INCLUDE_CPU_FEATURES_WRAPPER_H_
#include <stdint.h>
namespace webrtc {
// List of features in x86.
typedef enum { kSSE2, kSSE3, kAVX2 } CPUFeature;
// List of features in ARM.
enum {
kCPUFeatureARMv7 = (1 << 0),
kCPUFeatureVFPv3 = (1 << 1),
kCPUFeatureNEON = (1 << 2),
kCPUFeatureLDREXSTREX = (1 << 3)
};
// Returns true if the CPU supports the feature.
int GetCPUInfo(CPUFeature feature);
// No CPU feature is available => straight C path.
int GetCPUInfoNoASM(CPUFeature feature);
// Return the features in an ARM device.
// It detects the features in the hardware platform, and returns supported
// values in the above enum definition as a bitmask.
uint64_t GetCPUFeaturesARM(void);
} // namespace webrtc
#endif // SYSTEM_WRAPPERS_INCLUDE_CPU_FEATURES_WRAPPER_H_
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