// Copyright 2017 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 UTILS_BACKENDBINDING_H_
#define UTILS_BACKENDBINDING_H_

#include "dawn/dawncpp.h"
#include "dawn_native/DawnNative.h"

struct GLFWwindow;

namespace utils {

    class BackendBinding {
      public:
        virtual ~BackendBinding() = default;

        virtual uint64_t GetSwapChainImplementation() = 0;
        virtual DawnTextureFormat GetPreferredSwapChainTextureFormat() = 0;

      protected:
        BackendBinding(GLFWwindow* window, DawnDevice device);

        GLFWwindow* mWindow = nullptr;
        DawnDevice mDevice = nullptr;
    };

    void SetupGLFWWindowHintsForBackend(dawn_native::BackendType type);
    void DiscoverAdapter(dawn_native::Instance* instance,
                         GLFWwindow* window,
                         dawn_native::BackendType type);
    BackendBinding* CreateBinding(dawn_native::BackendType type,
                                  GLFWwindow* window,
                                  DawnDevice device);

}  // namespace utils

#endif  // UTILS_BACKENDBINDING_H_