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// Copyright 2017 The Chromium Authors
// 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 <android/hardware_buffer.h>
#include <android/sensor.h>
#include "base/base_export.h"
#include "base/no_destructor.h"
extern "C" {
using PFAHardwareBuffer_allocate = void (*)(const AHardwareBuffer_Desc* desc,
AHardwareBuffer** outBuffer);
using PFAHardwareBuffer_acquire = void (*)(AHardwareBuffer* buffer);
using PFAHardwareBuffer_describe = void (*)(const AHardwareBuffer* buffer,
AHardwareBuffer_Desc* outDesc);
using PFAHardwareBuffer_lock = int (*)(AHardwareBuffer* buffer,
uint64_t usage,
int32_t fence,
const ARect* rect,
void** outVirtualAddress);
using PFAHardwareBuffer_recvHandleFromUnixSocket =
int (*)(int socketFd, AHardwareBuffer** outBuffer);
using PFAHardwareBuffer_release = void (*)(AHardwareBuffer* buffer);
using PFAHardwareBuffer_sendHandleToUnixSocket =
int (*)(const AHardwareBuffer* buffer, int socketFd);
using PFAHardwareBuffer_unlock = int (*)(AHardwareBuffer* buffer,
int32_t* fence);
}
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();
AndroidHardwareBufferCompat(const AndroidHardwareBufferCompat&) = delete;
AndroidHardwareBufferCompat& operator=(const AndroidHardwareBufferCompat&) =
delete;
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 class NoDestructor<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_
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