#include <GL/freeglut.h>
#include "freeglut_internal.h"
+#if TARGET_HOST_POSIX_X11
+#include <limits.h> /* LONG_MAX */
+#endif
+
/*
* TODO BEFORE THE STABLE RELEASE:
*
GLUT_EXEC_STATE_INIT, /* ExecState */
NULL, /* ProgramName */
GL_FALSE, /* JoysticksInitialised */
- GL_FALSE /* InputDevsInitialised */
+ GL_FALSE, /* InputDevsInitialised */
+ 1, /* AuxiliaryBufferNumber */
+ 4, /* SampleNumber */
+ 1, /* MajorVersion */
+ 0, /* MajorVersion */
+ 0 /* ContextFlags */
};
/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
+#if TARGET_HOST_POSIX_X11
+
+/* Return the atom associated with "name". */
+static Atom fghGetAtom(const char * name)
+{
+ return XInternAtom(fgDisplay.Display, name, False);
+}
+
+/*
+ * Check if "property" is set on "window". The property's values are returned
+ * through "data". If the property is set and is of type "type", return the
+ * number of elements in "data". Return zero otherwise. In both cases, use
+ * "Xfree()" to free "data".
+ */
+static int fghGetWindowProperty(Window window,
+ Atom property,
+ Atom type,
+ unsigned char ** data)
+{
+ /*
+ * Caller always has to use "Xfree()" to free "data", since
+ * "XGetWindowProperty() always allocates one extra byte in prop_return
+ * [i.e. "data"] (even if the property is zero length) [..]".
+ */
+
+ int status; /* Returned by "XGetWindowProperty". */
+
+ Atom type_returned;
+ int temp_format; /* Not used. */
+ unsigned long number_of_elements;
+ unsigned long temp_bytes_after; /* Not used. */
+
+
+ status = XGetWindowProperty(fgDisplay.Display,
+ window,
+ property,
+ 0,
+ LONG_MAX,
+ False,
+ type,
+ &type_returned,
+ &temp_format,
+ &number_of_elements,
+ &temp_bytes_after,
+ data);
+
+ FREEGLUT_INTERNAL_ERROR_EXIT(status == Success,
+ "XGetWindowProperty failled",
+ "fghGetWindowProperty");
+
+ if (type_returned != type)
+ {
+ number_of_elements = 0;
+ }
+
+ return number_of_elements;
+}
+
+/* Check if the window manager is NET WM compliant. */
+static int fghNetWMSupported(void)
+{
+ Atom wm_check;
+ Window ** window_ptr_1;
+
+ int number_of_windows;
+ int net_wm_supported;
+
+
+ net_wm_supported = 0;
+
+ wm_check = fghGetAtom("_NET_SUPPORTING_WM_CHECK");
+ window_ptr_1 = malloc(sizeof(Window *));
+
+ /*
+ * Check that the window manager has set this property on the root window.
+ * The property must be the ID of a child window.
+ */
+ number_of_windows = fghGetWindowProperty(fgDisplay.RootWindow,
+ wm_check,
+ XA_WINDOW,
+ (unsigned char **) window_ptr_1);
+ if (number_of_windows == 1)
+ {
+ Window ** window_ptr_2;
+
+ window_ptr_2 = malloc(sizeof(Window *));
+
+ /* Check that the window has the same property set to the same value. */
+ number_of_windows = fghGetWindowProperty(**window_ptr_1,
+ wm_check,
+ XA_WINDOW,
+ (unsigned char **) window_ptr_2);
+ if ((number_of_windows == 1) && (**window_ptr_1 == **window_ptr_2))
+ {
+ /* NET WM compliant */
+ net_wm_supported = 1;
+ }
+
+ XFree(*window_ptr_2);
+ free(window_ptr_2);
+ }
+
+ XFree(*window_ptr_1);
+ free(window_ptr_1);
+
+ return net_wm_supported;
+}
+
+/* Check if "hint" is present in "property" for "window". */
+int fgHintPresent(Window window, Atom property, Atom hint)
+{
+ Atom ** atoms_ptr;
+ int number_of_atoms;
+ int supported;
+ int i;
+
+ supported = 0;
+
+ atoms_ptr = malloc(sizeof(Atom *));
+ number_of_atoms = fghGetWindowProperty(window,
+ property,
+ XA_ATOM,
+ (unsigned char **) atoms_ptr);
+ for (i = 0; i < number_of_atoms; i++)
+ {
+ if ((*atoms_ptr)[i] == hint)
+ {
+ supported = 1;
+ break;
+ }
+ }
+
+ return supported;
+}
+
+#endif /* TARGET_HOST_POSIX_X11 */
+
+
/*
* A call to this function should initialize all the display stuff...
*/
fgDisplay.Connection = ConnectionNumber( fgDisplay.Display );
/* Create the window deletion atom */
- fgDisplay.DeleteWindow = XInternAtom(
- fgDisplay.Display,
- "WM_DELETE_WINDOW",
- FALSE
- );
+ fgDisplay.DeleteWindow = fghGetAtom("WM_DELETE_WINDOW");
+
+ /* Create the state and full screen atoms */
+ fgDisplay.State = None;
+ fgDisplay.StateFullScreen = None;
+
+ if (fghNetWMSupported())
+ {
+ const Atom supported = fghGetAtom("_NET_SUPPORTED");
+ const Atom state = fghGetAtom("_NET_WM_STATE");
+
+ /* Check if the state hint is supported. */
+ if (fgHintPresent(fgDisplay.RootWindow, supported, state))
+ {
+ const Atom full_screen = fghGetAtom("_NET_WM_STATE_FULLSCREEN");
+
+ fgDisplay.State = state;
+
+ /* Check if the window manager supports full screen. */
+ /** Check "_NET_WM_ALLOWED_ACTIONS" on our window instead? **/
+ if (fgHintPresent(fgDisplay.RootWindow, supported, full_screen))
+ {
+ fgDisplay.StateFullScreen = full_screen;
+ }
+ }
+ }
#elif TARGET_HOST_MS_WINDOWS
fgState.JoysticksInitialised = GL_FALSE;
fgState.InputDevsInitialised = GL_FALSE;
+ fgState.MajorVersion = 1;
+ fgState.MinorVersion = 0;
+ fgState.ContextFlags = 0;
+
fgState.Initialised = GL_FALSE;
fgState.Position.X = -1;
break ;
case 36 : /* "aux": some number of aux buffers */
- glut_state_flag |= GLUT_AUX1;
+ glut_state_flag |= GLUT_AUX;
break ;
case 37 : /* Unrecognized */
fgState.DisplayMode = glut_state_flag;
}
+/* -- SETTING OPENGL 3.0 CONTEXT CREATION PARAMETERS ---------------------- */
+
+void FGAPIENTRY glutInitContextVersion( int majorVersion, int minorVersion )
+{
+ /* We will make use of these valuse when creating a new OpenGL context... */
+ fgState.MajorVersion = majorVersion;
+ fgState.MinorVersion = minorVersion;
+}
+
+
+void FGAPIENTRY glutInitContextFlags( int flags )
+{
+ /* We will make use of this value when creating a new OpenGL context... */
+ fgState.ContextFlags = flags;
+}
+
/*** END OF FILE ***/
projects / freeglut / blobdiff