+static void fghFillContextAttributes( int *attributes ) {
+ int where = 0, contextFlags, contextProfile;
+
+ if ( !fghIsLegacyContextVersionRequested() ) {
+ ATTRIB_VAL( WGL_CONTEXT_MAJOR_VERSION_ARB, fgState.MajorVersion );
+ ATTRIB_VAL( WGL_CONTEXT_MINOR_VERSION_ARB, fgState.MinorVersion );
+ }
+
+ contextFlags =
+ fghMapBit( fgState.ContextFlags, GLUT_DEBUG, WGL_CONTEXT_DEBUG_BIT_ARB ) |
+ fghMapBit( fgState.ContextFlags, GLUT_FORWARD_COMPATIBLE, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB );
+ if ( contextFlags != 0 ) {
+ ATTRIB_VAL( WGL_CONTEXT_FLAGS_ARB, contextFlags );
+ }
+
+ contextProfile =
+ fghMapBit( fgState.ContextProfile, GLUT_CORE_PROFILE, WGL_CONTEXT_CORE_PROFILE_BIT_ARB ) |
+ fghMapBit( fgState.ContextProfile, GLUT_COMPATIBILITY_PROFILE, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB );
+ if ( contextProfile != 0 ) {
+ ATTRIB_VAL( WGL_CONTEXT_PROFILE_MASK_ARB, contextProfile );
+ }
+
+ ATTRIB( 0 );
+}
+
+static int fghIsExtensionSupported( HDC hdc, const char *extension ) {
+ const char *pWglExtString;
+ PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB =
+ (PFNWGLGETEXTENSIONSSTRINGARBPROC) wglGetProcAddress("wglGetExtensionsStringARB");
+ if ( wglGetEntensionsStringARB == NULL )
+ {
+ return FALSE;
+ }
+ pWglExtString = wglGetEntensionsStringARB( hdc );
+ return ( pWglExtString != NULL ) && ( strstr(pWglExtString, extension) != NULL );
+}
+
+void fgNewWGLCreateContext( SFG_Window* window )
+{
+ HGLRC context;
+ int attributes[9];
+ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
+
+ /* If nothing fancy has been required, leave the context as it is */
+ if ( fghIsLegacyContextRequested() )
+ {
+ return;
+ }
+
+ wglMakeCurrent( window->Window.Device, window->Window.Context );
+
+ if ( !fghIsExtensionSupported( window->Window.Device, "WGL_ARB_create_context" ) )
+ {
+ return;
+ }
+
+ /* new context creation */
+ fghFillContextAttributes( attributes );
+
+ wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress( "wglCreateContextAttribsARB" );
+ if ( wglCreateContextAttribsARB == NULL )
+ {
+ fgError( "wglCreateContextAttribsARB not found" );
+ }
+
+ context = wglCreateContextAttribsARB( window->Window.Device, 0, attributes );
+ if ( context == NULL )
+ {
+ fghContextCreationError();
+ }
+
+ wglMakeCurrent( NULL, NULL );
+ wglDeleteContext( window->Window.Context );
+ window->Window.Context = context;
+}
+
+#if !defined(_WIN32_WCE)
+
+static void fghFillPFD( PIXELFORMATDESCRIPTOR *ppfd, HDC hdc, unsigned char layer_type )
+{
+ int flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
+ if ( fgState.DisplayMode & GLUT_DOUBLE ) {
+ flags |= PFD_DOUBLEBUFFER;
+ }
+ if ( fgState.DisplayMode & GLUT_STEREO ) {
+ flags |= PFD_STEREO;
+ }