adjustable window size gfx fixes

hw3d/App.cpp

@@ -13,10 +13,10 @@ GDIPlusManager gdipm;
 
 App::App()
 	:
-	wnd( 800,600,"The Donkey Fart Box" ),
+	wnd( 1280,720,"The Donkey Fart Box" ),
 	light( wnd.Gfx() )
 {
-	wnd.Gfx().SetProjection( dx::XMMatrixPerspectiveLH( 1.0f,3.0f / 4.0f,0.5f,40.0f ) );
+	wnd.Gfx().SetProjection( dx::XMMatrixPerspectiveLH( 1.0f,9.0f / 16.0f,0.5f,40.0f ) );
 }
 
 void App::DoFrame()

hw3d/Graphics.cpp

@@ -15,11 +15,11 @@ namespace dx = DirectX;
 #pragma comment(lib,"D3DCompiler.lib")
 
 
-Graphics::Graphics( HWND hWnd )
+Graphics::Graphics( HWND hWnd,int width,int height )
 {
 	DXGI_SWAP_CHAIN_DESC sd = {};
-	sd.BufferDesc.Width = 0;
-	sd.BufferDesc.Height = 0;
+	sd.BufferDesc.Width = width;
+	sd.BufferDesc.Height = height;
 	sd.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
 	sd.BufferDesc.RefreshRate.Numerator = 0;
 	sd.BufferDesc.RefreshRate.Denominator = 0;
@@ -77,8 +77,8 @@ Graphics::Graphics( HWND hWnd )
 	// create depth stensil texture
 	wrl::ComPtr<ID3D11Texture2D> pDepthStencil;
 	D3D11_TEXTURE2D_DESC descDepth = {};
-	descDepth.Width = 800u;
-	descDepth.Height = 600u;
+	descDepth.Width = width;
+	descDepth.Height = height;
 	descDepth.MipLevels = 1u;
 	descDepth.ArraySize = 1u;
 	descDepth.Format = DXGI_FORMAT_D32_FLOAT;
@@ -102,8 +102,8 @@ Graphics::Graphics( HWND hWnd )
 	   
 	// configure viewport
 	D3D11_VIEWPORT vp;
-	vp.Width = 800.0f;
-	vp.Height = 600.0f;
+	vp.Width = (float)width;
+	vp.Height = (float)height;
 	vp.MinDepth = 0.0f;
 	vp.MaxDepth = 1.0f;
 	vp.TopLeftX = 0.0f;

hw3d/Graphics.h

@@ -57,7 +57,7 @@ public:
 		std::string reason;
 	};
 public:
-	Graphics( HWND hWnd );
+	Graphics( HWND hWnd,int width,int height );
 	Graphics( const Graphics& ) = delete;
 	Graphics& operator=( const Graphics& ) = delete;
 	~Graphics();

hw3d/Window.cpp

@@ -102,7 +102,7 @@ Window::Window( int width,int height,const char* name )
 	// Init ImGui Win32 Impl
 	ImGui_ImplWin32_Init( hWnd );
 	// create graphics object
-	pGfx = std::make_unique<Graphics>( hWnd );
+	pGfx = std::make_unique<Graphics>( hWnd,width,height );
 }
 
 Window::~Window()