private static void RunSample(DXSample sample)
{
Console.WriteLine($"Running: {sample.Name}");
var exitCode = Run(sample);
Console.WriteLine($" Completed with exit code: {exitCode}");
}
public static int Run(DXSample sample, HINSTANCE hInstance, int nCmdShow)
{
var useWarpDevice = false;
// Parse the command line parameters
foreach (var arg in Environment.GetCommandLineArgs())
{
if (Program.Matches(arg, "warp"))
{
useWarpDevice = true;
continue;
}
}
fixed(char *lpszClassName = "DXSampleClass")
fixed(char *lpWindowName = sample.Name)
{
// Initialize the window class.
var windowClass = new WNDCLASSEXW {
cbSize = (uint)sizeof(WNDCLASSEXW),
style = CS_HREDRAW | CS_VREDRAW,
lpfnWndProc = &WindowProc,
hInstance = hInstance,
hCursor = LoadCursorW(HINSTANCE.NULL, (ushort *)IDC_ARROW),
lpszClassName = (ushort *)lpszClassName
};
_ = RegisterClassExW(&windowClass);
// Create the window and store a handle to it.
s_hwnd = CreateWindowExW(
0,
windowClass.lpszClassName,
(ushort *)lpWindowName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
HWND.NULL, // We have no parent window.
HMENU.NULL, // We aren't using menus.
hInstance,
((IntPtr)GCHandle.Alloc(sample)).ToPointer()
);
}
RECT windowRect;
_ = GetClientRect(s_hwnd, &windowRect);
// Initialize the sample. OnInit is defined in each child-implementation of DXSample.
var backgroundColor = new Vector4(0.0f, 0.2f, 0.4f, 1.0f);
var size = new Size(windowRect.right - windowRect.left, windowRect.bottom - windowRect.top);
sample.OnInit(DXGI_FORMAT_UNKNOWN, backgroundColor, DXGI_FORMAT_UNKNOWN, 1.0f, 2, s_hwnd, true, size, useWarpDevice);
_ = ShowWindow(s_hwnd, nCmdShow);
// Main sample loop.
MSG msg;
DispatchPending(&msg);
var lastFramesPerSecond = 0u;
while (msg.message != WM_QUIT)
{
var delta = sample.OnBeginFrame();
sample.OnUpdate(delta);
var framesPerSecond = sample.FramesPerSecond;
if (framesPerSecond != lastFramesPerSecond)
{
fixed(char *lpWindowName = $"{sample.Name} ({framesPerSecond} fps)")
{
_ = SetWindowTextW(s_hwnd, (ushort *)lpWindowName);
}
lastFramesPerSecond = framesPerSecond;
}
if (sample.IsWindowVisible)
{
sample.OnRender();
}
DispatchPending(&msg);
}
sample.OnDestroy();
// Return this part of the WM_QUIT message to Windows.
return((int)msg.wParam);
private static int Run(DXSample sample)
{
var hInstance = GetModuleHandleW(null);
return(Win32Application.Run(sample, hInstance, SW_SHOWDEFAULT));
}
