Initial commit

src/platform/win32_window.cpp

@@ -0,0 +1,113 @@
+#include "window.h"
+
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <Windows.h>
+
+static LRESULT CALLBACK WindowProc(HWND window, UINT message, WPARAM wParam, LPARAM lParam)
+{
+	switch (message)
+	{
+		case WM_CLOSE:
+		{
+			PostQuitMessage(0);
+			break;
+		}
+
+		default:
+			return DefWindowProc(window, message, wParam, lParam);
+	}
+	return 0;
+}
+
+namespace ogl_starter
+{
+
+struct Win32WindowImpl final
+{
+	HINSTANCE m_hInstance;
+	HWND m_hWnd;
+	bool m_close;
+};
+
+void PumpMessages(Win32WindowImpl& window)
+{
+	MSG message = {};
+	if (GetMessage(&message, NULL, 0, 0) != 0)
+	{
+		TranslateMessage(&message);
+		DispatchMessage(&message);
+	}
+	else
+	{
+		// GetMessage returned WM_QUIT
+		window.m_close = true;
+	}
+}
+
+bool ShouldClose(const Win32WindowImpl& window)
+{
+	return window.m_close;
+}
+
+void* GetNativeHandle(const Win32WindowImpl& window)
+{
+	return static_cast<void*>(window.m_hWnd);
+}
+} // namespace ogl_starter
+
+ogl_starter::Window oglsCreateWindow(ogl_starter::WindowCreateParams params)
+{
+	const char className[] = "Win32WindowImpl";
+	HINSTANCE hInstance = GetModuleHandle(NULL);
+	ogl_starter::Win32WindowImpl result = {
+		.m_hInstance = nullptr,
+		.m_hWnd = nullptr,
+		.m_close = true};
+
+	WNDCLASSEX wc = {};
+
+	wc.cbSize = sizeof(WNDCLASSEX);
+	wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
+	wc.lpfnWndProc = WindowProc;
+	wc.hInstance = hInstance;
+	wc.lpszClassName = className;
+	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+
+	if (RegisterClassEx(&wc) == 0)
+	{
+		MessageBox(nullptr, "Call to RegisterClass failed", "Fatal Error", MB_OK);
+		return result;
+	}
+
+	HWND window = CreateWindowEx(
+		0,
+		className,
+		params.name,
+		WS_OVERLAPPEDWINDOW,
+		params.x, params.y, params.width, params.height,
+		nullptr,
+		nullptr,
+		hInstance,
+		nullptr);
+
+	if (window == nullptr)
+	{
+		MessageBox(nullptr, "Call to CreateWindow failed", "Fatal Error", MB_OK);
+		return result;
+	}
+
+	ShowWindow(window, SW_SHOW);
+
+	result.m_hInstance = hInstance;
+	result.m_hWnd = window;
+	result.m_close = false;
+
+	return result;
+}