/*

* Copyright 2019-2023 Diligent Graphics LLC

*

* 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.

*

* In no event and under no legal theory, whether in tort (including negligence),

* contract, or otherwise, unless required by applicable law (such as deliberate

* and grossly negligent acts) or agreed to in writing, shall any Contributor be

* liable for any damages, including any direct, indirect, special, incidental,

* or consequential damages of any character arising as a result of this License or

* out of the use or inability to use the software (including but not limited to damages

* for loss of goodwill, work stoppage, computer failure or malfunction, or any and

* all other commercial damages or losses), even if such Contributor has been advised

* of the possibility of such damages.

*/

using System;

using System.Collections.Generic;

namespace Diligent;

public static partial class Native

{

private static readonly Dictionary<Type, Func<IntPtr>> Callbacks = new() {

{ typeof(IEngineFactoryD3D11), GetEngineFactoryD3D11_},

{ typeof(IEngineFactoryD3D12), GetEngineFactoryD3D12_ },

{ typeof(IEngineFactoryVk), GetEngineFactoryVk_ },

{ typeof(IEngineFactoryOpenGL), GetEngineFactoryOpenGL_ }

};

public static T CreateEngineFactory<T>() where T : IEngineFactory

{

if (!Callbacks.TryGetValue(typeof(T), out var func))

throw new ArgumentException($"Unexpected type: {typeof(T).Name}");

var handle = func();

return handle != IntPtr.Zero ? (T)Activator.CreateInstance(typeof(T), handle) : null;

}

}