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// 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 UI_GL_GPU_FENCE_H_
#define UI_GL_GPU_FENCE_H_
#include "base/macros.h"
#include "build/build_config.h"
#include "ui/gfx/gfx_export.h"
#include "ui/gfx/gpu_fence_handle.h"
extern "C" typedef struct _ClientGpuFence* ClientGpuFence;
namespace gfx {
// GpuFence objects own a GpuFenceHandle and release the resources in it when
// going out of scope as appropriate.
class GFX_EXPORT GpuFence {
public:
// Constructor takes ownership of the source handle's resources.
explicit GpuFence(const GpuFenceHandle& handle);
GpuFence() = delete;
~GpuFence();
// This handle is an unowned view of the resources owned by this class for
// use with CloneHandleForIPC. Don't pass this to a consuming method such as
// GpuFence(handle) or to IPC, that would cause duplicate resource release.
GpuFenceHandle GetGpuFenceHandle() const;
// Casts for use with the GLES interface.
ClientGpuFence AsClientGpuFence();
static GpuFence* FromClientGpuFence(ClientGpuFence gpu_fence);
private:
gfx::GpuFenceHandleType type_;
#if defined(OS_POSIX)
base::ScopedFD owned_fd_;
#endif
DISALLOW_COPY_AND_ASSIGN(GpuFence);
};
} // namespace gfx
#endif // UI_GL_GPU_FENCE_H_
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