Implemented Windows version

src/windows/WinMiniFB.c

@@ -0,0 +1,142 @@
+#include <MiniFB.h> 
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+static WNDCLASS s_wc;
+static HWND s_wnd;
+static int s_close = 0;
+static int s_width;
+static int s_height;
+static HDC s_hdc;
+static void* s_buffer;
+static BITMAPINFO s_bitmapInfo;
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+static LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
+{
+	int res = 0;
+
+	switch (message)
+	{
+		case WM_PAINT:
+		{
+			if (s_buffer)
+			{
+				StretchDIBits(s_hdc, 0, 0, s_width, s_height, 0, 0, s_width, s_height, s_buffer, 
+							  &s_bitmapInfo, DIB_RGB_COLORS, SRCCOPY);
+
+				ValidateRect(hWnd, NULL);
+			}
+
+			break;
+		}
+
+		case WM_KEYDOWN:
+		{
+			if ((wParam&0xFF) == 27) 
+				s_close = 1;
+
+			break;
+		}
+
+		case WM_CLOSE:
+		{
+			s_close = 1;
+			break;
+		}
+
+		default:
+		{
+			res = DefWindowProc(hWnd, message, wParam, lParam);
+		}
+	}
+
+	return res;
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+int mfb_open(const char* title, int width, int height)
+{
+	RECT rect = { 0 };
+
+	s_wc.style = CS_OWNDC | CS_VREDRAW | CS_HREDRAW;
+	s_wc.lpfnWndProc = WndProc;
+	s_wc.hCursor = LoadCursor(0, IDC_ARROW);
+	s_wc.lpszClassName = title;
+	RegisterClass(&s_wc);
+
+	rect.right = width;
+	rect.bottom = height;
+
+	AdjustWindowRect(&rect, WS_POPUP | WS_SYSMENU | WS_CAPTION, 0);
+
+	rect.right -= rect.left;
+	rect.bottom -= rect.top;
+
+	s_width = width;
+	s_height = height;
+
+	s_wnd = CreateWindowEx(0, 
+		title, title,
+		WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX & ~WS_THICKFRAME,
+		CW_USEDEFAULT, CW_USEDEFAULT,
+		rect.right, rect.bottom,
+		0, 0, 0, 0);
+
+	if (!s_wnd)
+		return 0;
+
+	ShowWindow(s_wnd, SW_NORMAL);
+
+	s_bitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+	s_bitmapInfo.bmiHeader.biPlanes = 1;
+	s_bitmapInfo.bmiHeader.biBitCount = 32;
+	s_bitmapInfo.bmiHeader.biCompression = BI_BITFIELDS;
+	s_bitmapInfo.bmiHeader.biWidth = width;
+	s_bitmapInfo.bmiHeader.biHeight = -height;
+	s_bitmapInfo.bmiColors[0].rgbRed = 0xff; 
+	s_bitmapInfo.bmiColors[1].rgbGreen = 0xff; 
+	s_bitmapInfo.bmiColors[2].rgbBlue = 0xff; 
+
+	s_hdc = GetDC(s_wnd);
+
+	return 1;
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+int mfb_update(void* buffer)
+{
+	MSG msg;
+	
+	s_buffer = buffer;
+
+	InvalidateRect(s_wnd, NULL, TRUE);
+	SendMessage(s_wnd, WM_PAINT, 0, 0);
+
+	while (PeekMessage(&msg, s_wnd, 0, 0, PM_REMOVE))
+	{
+		TranslateMessage(&msg);
+		DispatchMessage(&msg);
+	}
+
+	if (s_close == 1)
+		return -1;
+
+	return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+void mfb_close()
+{
+	s_buffer = 0;
+	ReleaseDC(s_wnd, s_hdc);
+	DestroyWindow(s_wnd);
+}
+