internal static void Uninitialize()
{
WinApi.wglMakeCurrent(IntPtr.Zero, IntPtr.Zero);
WinApi.wglDeleteContext(m_context);
m_context = IntPtr.Zero;
UninitializeFunctions();
m_SwapInterval = null;
}
internal static void Initialize(Display display, int colorBits, int depthBits, bool debug)
{
m_debug = debug;
WinApi.PixelFormatDescriptor pixelFormat = new WinApi.PixelFormatDescriptor()
{
size = (ushort)Marshal.SizeOf(typeof(WinApi.PixelFormatDescriptor)),
version = 1,
flags = WinApi.PFD_DRAW_TO_WINDOW | WinApi.PFD_SUPPORT_OPENGL | WinApi.PFD_DOUBLEBUFFER,
pixelType = WinApi.PFD_TYPE_RGBA,
colorBits = (byte)colorBits,
depthBits = (byte)depthBits
};
int pixelFormatIndex = WinApi.ChoosePixelFormat(display.DeviceContext, ref pixelFormat);
var result = WinApi.SetPixelFormat(display.DeviceContext, pixelFormatIndex, ref pixelFormat);
var temporaryContext = WinApi.wglCreateContext(display.DeviceContext);
WinApi.wglMakeCurrent(display.DeviceContext, temporaryContext);
var wglCreateContextAttribsARB =
(Delegate_CreateContextAttribsARB)
Marshal.GetDelegateForFunctionPointer(
wglGetProcAddress("wglCreateContextAttribsARB"),
typeof(Delegate_CreateContextAttribsARB)
);
var profileBit = CONTEXT_CORE_PROFILE_BIT_ARB;
if (debug)
{
profileBit |= CONTEXT_DEBUG_BIT_ARB;
}
m_context = wglCreateContextAttribsARB(
display.DeviceContext, IntPtr.Zero, new uint[] {
CONTEXT_MAJOR_VERSION_ARB, 3,
CONTEXT_MINOR_VERSION_ARB, 0,
CONTEXT_PROFILE_MASK_ARB, profileBit,
0
}
);
WinApi.wglDeleteContext(temporaryContext);
WinApi.wglMakeCurrent(display.DeviceContext, m_context);
InitializeFunctions();
Engine.LogInfo("OpenGL version: {0}", Marshal.PtrToStringAnsi(GL.GetString(GL.VERSION)));
Engine.LogInfo("GLSL version: {0}", Marshal.PtrToStringAnsi(GL.GetString(GL.SHADING_LANGUAGE_VERSION)));
Engine.LogInfo("Vendor: {0}", Marshal.PtrToStringAnsi(GL.GetString(GL.VENDOR)));
Engine.LogInfo("Renderer: {0}", Marshal.PtrToStringAnsi(GL.GetString(GL.RENDERER)));
m_SwapInterval = (Delegate_SwapInterval)GetFunctionDelegate("wglSwapIntervalEXT", typeof(Delegate_SwapInterval));
}
