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// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef DAWNNATIVE_VULKAN_BACKENDVK_H_
#define DAWNNATIVE_VULKAN_BACKENDVK_H_
#include "dawn_native/BackendConnection.h"
#include "common/DynamicLib.h"
#include "dawn_native/vulkan/VulkanFunctions.h"
#include "dawn_native/vulkan/VulkanInfo.h"
namespace dawn_native { namespace vulkan {
class Backend : public BackendConnection {
public:
Backend(InstanceBase* instance);
~Backend() override;
const VulkanFunctions& GetFunctions() const;
VkInstance GetVkInstance() const;
const VulkanGlobalInfo& GetGlobalInfo() const;
MaybeError Initialize(bool useSwiftshader);
std::vector<std::unique_ptr<AdapterBase>> DiscoverDefaultAdapters() override;
private:
MaybeError LoadVulkan(bool useSwiftshader);
ResultOrError<VulkanGlobalKnobs> CreateInstance();
MaybeError RegisterDebugUtils();
DynamicLib mVulkanLib;
VulkanGlobalInfo mGlobalInfo = {};
VkInstance mInstance = VK_NULL_HANDLE;
VulkanFunctions mFunctions;
VkDebugUtilsMessengerEXT mDebugUtilsMessenger = VK_NULL_HANDLE;
std::vector<VkPhysicalDevice> mPhysicalDevices;
};
}} // namespace dawn_native::vulkan
#endif // DAWNNATIVE_VULKAN_BACKENDVK_H_