public OpenGLWindow(INativeWindow parent, int x, int y, int width, int height) : base(new WindowCreateStruct {
WindowTitle = GameConfig.GameWindowTitle, //"IGE OpenGLWindow",
X = x,
Y = y,
Width = width,
Height = height,
Style = GameConfig.FullScreen ? WindowStyleFlags.Popup : Win32NativeWindow.DefaultStyle,
ExStyle = ExtendedWindowStyleFlags.ApplicationWindow,
ParentWindow = (Win32NativeWindow)parent,
Menu = IntPtr.Zero,
Param = IntPtr.Zero,
ClassName = "IGEOpenGLWindow",
ClassStyle = WindowClassStyle.HREDRAW | WindowClassStyle.VREDRAW | WindowClassStyle.OWNDC,
Background = (IntPtr)0, // no background brush is needed since opengl has its own renderer
Icon = (GameConfig.IconResourceId != 0) ? IGE.Platform.Win32.API.Externals.LoadIcon(Win32Application.GetInstanceHandle(), (IntPtr)GameConfig.IconResourceId) : IGE.Platform.Win32.API.Externals.LoadIcon(IntPtr.Zero, (IntPtr) 32512), // 32512 = IDI_APPLICATION
Cursor = IGE.Platform.Win32.API.Externals.LoadCursor(IntPtr.Zero, (IntPtr) 32512), // 32512 = IDC_ARROW
ClassMenu = IntPtr.Zero,
ClassExtra = 0,
WindowExtra = 0
})
{
m_DeviceContext = null;
if (!Exists)
{
return;
}
m_DeviceContext = new DeviceContext(this);
if (m_DeviceContext.Disposed)
{
GameDebugger.EngineLog(LogLevel.Error, "Failed to properly create a device context");
throw new UserFriendlyException("Failed to properly create a device context", "Graphics initialization error");
}
/*
* // This enumerates all pixel formats, supported by the device context to the log file
* for( int i = PixelFormat.GetCount(m_DeviceContext); i > 0; i-- ) {
* PixelFormat dpf = new PixelFormat(m_DeviceContext, i);
* GameDebugger.Log(dpf);
* }
*/
// change pixelformat for the window's device context
// | PixelFormatDescriptorFlags.SWAP_EXCHANGE
PixelFormatDescriptor pfd = new PixelFormatDescriptor {
Flags = PixelFormatDescriptorFlags.DOUBLEBUFFER | PixelFormatDescriptorFlags.SUPPORT_OPENGL | PixelFormatDescriptorFlags.DRAW_TO_WINDOW,
PixelType = ApiPixelType.RGBA,
ColorBits = (byte)GameConfig.ColorBits,
RedBits = 8, GreenBits = 8, BlueBits = 8, AlphaBits = 8,
RedShift = 0, GreenShift = 0, BlueShift = 0, AlphaShift = 0,
DepthBits = (byte)GameConfig.DepthBufferBits,
StencilBits = (byte)GameConfig.StencilBufferBits,
AccumBits = (byte)GameConfig.AccumBufferBits, AccumRedBits = 0, AccumGreenBits = 0, AccumBlueBits = 0, AccumAlphaBits = 0,
AuxBuffers = 0, LayerType = 0, LayerMask = 0, VisibleMask = 0, DamageMask = 0
};
PixelFormat pf = new PixelFormat(m_DeviceContext, ref pfd);
GameDebugger.EngineLog(LogLevel.Debug, "{0}", pf);
if (!pf.Exists)
{
throw new Exception("Could not find a suitable pixel format for an OpenGL window.");
}
bool res = pf.Apply();
//GameDebugger.Log("Chosen: {0} {1}", pf.Exists, pf.ToString());
//GameDebugger.Log("Apply result: {0}", res);
if (!res)
{
GameDebugger.EngineLog(LogLevel.Debug, "Failed applying requested pixel format, trying to apply by a found index");
PixelFormat pf2 = new PixelFormat(m_DeviceContext, pf.Index);
GameDebugger.EngineLog(LogLevel.Debug, "{0}", pf2);
res = pf2.Apply();
//GameDebugger.Log("Real: {0} {1}", pf2.Exists, pf2.ToString());
//GameDebugger.Log("Apply result: {0}", res);
if (!res)
{
throw new Exception(String.Format("Error trying to set {0}", pf2.ToString()));
}
}
m_ResourceContext = new ResourceContext(m_DeviceContext);
if (m_ResourceContext.Disposed)
{
int pixelFormats = PixelFormat.GetCount(m_DeviceContext);
GameDebugger.EngineLog(LogLevel.Debug, "Supported pixel formats:");
for (int i = 0; i < pixelFormats; i++)
{
pf = new PixelFormat(m_DeviceContext, i);
GameDebugger.EngineLog(LogLevel.Debug, "{0}", pf);
}
throw new Exception("Could not create a resource context for the OpenGLWindow");
}
m_ResourceContext.Activate();
// "reload" because we want context specific extension functions to be loaded as well
WGL.RuntimeImport();
GL.RuntimeImport();
Application.IdleEvent += OnIdle;
}
