blob: a3a78b9823344778dae918c5c5ef4c8688f7d228 [file] [log] [blame]
// Copyright 2019 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_SCOPED_HARDWARE_BUFFER_FENCE_SYNC_H_
#define BASE_ANDROID_SCOPED_HARDWARE_BUFFER_FENCE_SYNC_H_
#include "base/android/scoped_hardware_buffer_handle.h"
#include "base/base_export.h"
#include "base/files/scoped_file.h"
namespace base {
namespace android {
// This class provides a ScopedHardwareBufferHandle and may include a fence
// which will be signaled when all pending work for the buffer has been finished
// and it can be safely read from.
class BASE_EXPORT ScopedHardwareBufferFenceSync {
public:
ScopedHardwareBufferFenceSync(
base::android::ScopedHardwareBufferHandle handle,
base::ScopedFD fence_fd);
virtual ~ScopedHardwareBufferFenceSync();
AHardwareBuffer* buffer() const { return handle_.get(); }
ScopedHardwareBufferHandle TakeBuffer();
ScopedFD TakeFence();
// Provides fence which is signaled when the reads for this buffer are done
// and it can be reused. Must only be called once.
virtual void SetReadFence(base::ScopedFD fence_fd) = 0;
private:
ScopedHardwareBufferHandle handle_;
ScopedFD fence_fd_;
};
} // namespace android
} // namespace base
#endif // BASE_ANDROID_SCOPED_HARDWARE_BUFFER_FENCE_SYNC_H_