chromium/third_party/angle/src/libANGLE/renderer/vulkan/SyncVk.h

//
// Copyright 2016 The ANGLE 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.
//
// SyncVk:
//    Defines the class interface for SyncVk, implementing SyncImpl.
//

#ifndef LIBANGLE_RENDERER_VULKAN_FENCESYNCVK_H_
#define LIBANGLE_RENDERER_VULKAN_FENCESYNCVK_H_

#include "libANGLE/renderer/EGLSyncImpl.h"
#include "libANGLE/renderer/SyncImpl.h"
#include "libANGLE/renderer/vulkan/vk_resource.h"

namespace egl
{
class AttributeMap;
}

namespace rx
{
namespace vk
{

// Represents an invalid native fence FD.
constexpr int kInvalidFenceFd = …;

class ExternalFence final : angle::NonCopyable
{ … };

SharedExternalFence;
MapVkResultToApiType;

class SyncHelperInterface : angle::NonCopyable
{ … };

// Implementation of fence types - glFenceSync, and EGLSync(EGL_SYNC_FENCE_KHR).
// The behaviors of SyncVk and EGLFenceSyncVk as fence syncs are currently
// identical for the Vulkan backend, and this class implements both interfaces.
class SyncHelper final : public vk::Resource, public SyncHelperInterface
{ … };

// Implementation of sync types: EGLSync(EGL_SYNC_ANDROID_NATIVE_FENCE_ANDROID).
class SyncHelperNativeFence final : public SyncHelperInterface
{ … };

}  // namespace vk

// Implementor for glFenceSync.
class SyncVk final : public SyncImpl
{ … };

// Implementor for EGLSync.
class EGLSyncVk final : public EGLSyncImpl
{ … };
}  // namespace rx

#endif  // LIBANGLE_RENDERER_VULKAN_FENCESYNCVK_H_