DXSample.h

//*********************************************************
//
// Copyright (c) Microsoft. All rights reserved.
// This code is licensed under the MIT License (MIT).
// THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
// IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
// PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
//
//*********************************************************

#pragma once

#include "DXSampleHelper.h"
#include "Win32Application.h"

class DXSample
{
public:
	DXSample(UINT width, UINT height, std::wstring name);
	virtual ~DXSample();

	virtual void OnInit() = 0;
	virtual void OnUpdate() = 0;
	virtual void OnRender() = 0;
	virtual void OnDestroy() = 0;

	// Samples override the event handlers to handle specific messages.
	virtual void OnKeyDown(UINT8 /*key*/)   {}
	virtual void OnKeyUp(UINT8 /*key*/)     {}

	// Accessors.
	UINT GetWidth() const           { return m_width; }
	UINT GetHeight() const          { return m_height; }
	const WCHAR* GetTitle() const   { return m_title.c_str(); }

	void ParseCommandLineArgs(_In_reads_(argc) WCHAR* argv[], int argc);

protected:
	std::wstring GetAssetFullPath(LPCWSTR assetName);
	void GetHardwareAdapter(_In_ IDXGIFactory2* pFactory, _Outptr_result_maybenull_ IDXGIAdapter1** ppAdapter);
	void SetCustomWindowText(LPCWSTR text);

	// Viewport dimensions.
	UINT m_width;
	UINT m_height;
	float m_aspectRatio;

	// Adapter info.
	bool m_useWarpDevice;

private:
	// Root assets path.
	std::wstring m_assetsPath;

	// Window title.
	std::wstring m_title;
};