49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
|
|
* 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>
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
extern "C" {
|
|
#endif
|
|
|
|
// List of features in x86.
|
|
typedef enum { kSSE2, kSSE3 } CPUFeature;
|
|
|
|
// List of features in ARM.
|
|
enum {
|
|
kCPUFeatureARMv7 = (1 << 0),
|
|
kCPUFeatureVFPv3 = (1 << 1),
|
|
kCPUFeatureNEON = (1 << 2),
|
|
kCPUFeatureLDREXSTREX = (1 << 3)
|
|
};
|
|
|
|
typedef int (*WebRtc_CPUInfo)(CPUFeature feature);
|
|
|
|
// Returns true if the CPU supports the feature.
|
|
extern WebRtc_CPUInfo WebRtc_GetCPUInfo;
|
|
|
|
// No CPU feature is available => straight C path.
|
|
extern WebRtc_CPUInfo WebRtc_GetCPUInfoNoASM;
|
|
|
|
// 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.
|
|
extern uint64_t WebRtc_GetCPUFeaturesARM(void);
|
|
|
|
#if defined(__cplusplus) || defined(c_plusplus)
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif // SYSTEM_WRAPPERS_INCLUDE_CPU_FEATURES_WRAPPER_H_
|