naiveproxy/base/android/android_hardware_buffer_compat.h

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2018-01-28 21:32:06 +03:00
// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_ANDROID_ANDROID_HARDWARE_BUFFER_COMPAT_H_
#define BASE_ANDROID_ANDROID_HARDWARE_BUFFER_COMPAT_H_
#include "base/android/android_hardware_buffer_abi.h"
#include "base/base_export.h"
#include "base/lazy_instance.h"
namespace base {
// This class provides runtime support for working with AHardwareBuffer objects
// on Android O systems without requiring building for the Android O NDK level.
// Don't call GetInstance() unless IsSupportAvailable() returns true.
class BASE_EXPORT AndroidHardwareBufferCompat {
public:
static bool IsSupportAvailable();
static AndroidHardwareBufferCompat GetInstance();
void Allocate(const AHardwareBuffer_Desc* desc, AHardwareBuffer** outBuffer);
void Acquire(AHardwareBuffer* buffer);
void Describe(const AHardwareBuffer* buffer, AHardwareBuffer_Desc* outDesc);
int Lock(AHardwareBuffer* buffer,
uint64_t usage,
int32_t fence,
const ARect* rect,
void** out_virtual_address);
int RecvHandleFromUnixSocket(int socketFd, AHardwareBuffer** outBuffer);
void Release(AHardwareBuffer* buffer);
int SendHandleToUnixSocket(const AHardwareBuffer* buffer, int socketFd);
int Unlock(AHardwareBuffer* buffer, int32_t* fence);
private:
friend struct base::LazyInstanceTraitsBase<AndroidHardwareBufferCompat>;
AndroidHardwareBufferCompat();
PFAHardwareBuffer_allocate allocate_;
PFAHardwareBuffer_acquire acquire_;
PFAHardwareBuffer_describe describe_;
PFAHardwareBuffer_lock lock_;
PFAHardwareBuffer_recvHandleFromUnixSocket recv_handle_;
PFAHardwareBuffer_release release_;
PFAHardwareBuffer_sendHandleToUnixSocket send_handle_;
PFAHardwareBuffer_unlock unlock_;
};
} // namespace base
#endif // BASE_ANDROID_ANDROID_HARDWARE_BUFFER_COMPAT_H_