* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
+#define FREEGLUT_BUILDING_LIB
#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 */
+ 0, /* NumActiveJoysticks */
GL_FALSE, /* InputDevsInitialised */
- 0, /* AuxiliaryBufferNumber */
- 0 /* SampleNumber */
+ 0, /* MouseWheelTicks */
+ 1, /* AuxiliaryBufferNumber */
+ 4, /* SampleNumber */
+ 1, /* MajorVersion */
+ 0, /* MinorVersion */
+ 0, /* ContextFlags */
+ 0, /* ContextProfile */
+ NULL, /* ErrorFunc */
+ NULL /* WarningFunc */
};
/* -- 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;
+ int number_of_atoms;
+ int supported;
+ int i;
+
+ supported = 0;
+
+ number_of_atoms = fghGetWindowProperty(window,
+ property,
+ XA_ATOM,
+ (unsigned char **) &atoms);
+ for (i = 0; i < number_of_atoms; i++)
+ {
+ if (atoms[i] == hint)
+ {
+ supported = 1;
+ break;
+ }
+ }
+
+ XFree(atoms);
+ 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
/* What we need to do is to initialize the fgDisplay global structure here. */
fgDisplay.Instance = GetModuleHandle( NULL );
-
+ fgDisplay.DisplayName= displayName ? strdup(displayName) : 0 ;
atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc );
if( atom == 0 )
ReleaseDC( desktop, context );
}
-
+ /* If we have a DisplayName try to use it for metrics */
+ if( fgDisplay.DisplayName )
+ {
+ HDC context = CreateDC(fgDisplay.DisplayName,0,0,0);
+ if( context )
+ {
+ fgDisplay.ScreenWidth = GetDeviceCaps( context, HORZRES );
+ fgDisplay.ScreenHeight = GetDeviceCaps( context, VERTRES );
+ fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE );
+ fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE );
+ DeleteDC(context);
+ }
+ else
+ fgWarning("fghInitialize: "
+ "CreateDC failed, Screen size info may be incorrect\n"
+ "This is quite likely caused by a bad '-display' parameter");
+
+ }
/* Set the timer granularity to 1 ms */
timeBeginPeriod ( 1 );
fgState.Initialised = GL_TRUE;
+ /* Avoid registering atexit callback on Win32 as it results in an access
+ * violation due to calling into a module which has been unloaded.
+ * Any cleanup isn't needed on Windows anyway, the OS takes care of it.c
+ * see: http://blogs.msdn.com/b/oldnewthing/archive/2012/01/05/10253268.aspx
+ */
+#if ( TARGET_HOST_MS_WINDOWS == 0 )
+ atexit(fgDeinitialize);
+#endif
+
/* InputDevice uses GlutTimerFunc(), so fgState.Initialised must be TRUE */
fgInitialiseInputDevices();
}
if( !fgState.Initialised )
{
- fgWarning( "fgDeinitialize(): "
- "no valid initialization has been performed" );
return;
}
+ /* If we're in game mode, we want to leave game mode */
+ if( fgStructure.GameModeWindow ) {
+ glutLeaveGameMode();
+ }
+
/* If there was a menu created, destroy the rendering context */
if( fgStructure.MenuContext )
{
fgState.JoysticksInitialised = GL_FALSE;
fgState.InputDevsInitialised = GL_FALSE;
+ fgState.MouseWheelTicks = 0;
+
+ fgState.MajorVersion = 1;
+ fgState.MinorVersion = 0;
+ fgState.ContextFlags = 0;
+ fgState.ContextProfile = 0;
+
fgState.Initialised = GL_FALSE;
fgState.Position.X = -1;
XCloseDisplay( fgDisplay.Display );
#elif TARGET_HOST_MS_WINDOWS
+ if( fgDisplay.DisplayName )
+ {
+ free( fgDisplay.DisplayName );
+ fgDisplay.DisplayName = NULL;
+ }
/* Reset the timer granularity */
timeEndPeriod ( 1 );
#ifndef _WIN32_WCE
{
const char *fps = getenv( "GLUT_FPS" );
+
if( fps )
{
int interval;
}
}
- displayName = getenv( "DISPLAY");
+ displayName = getenv( "DISPLAY" );
for( i = 1; i < argc; i++ )
{
}
}
+#if TARGET_HOST_MS_WINDOWS
+void (__cdecl *__glutExitFunc)( int return_value ) = NULL;
+
+void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) )
+{
+ __glutExitFunc = exit_function;
+ glutInit(pargc, argv);
+}
+#endif
+
/*
* Undoes all the "glutInit" stuff
*/
buffer[len] = '\0';
token = strtok ( buffer, " \t" );
+
while ( token )
{
/* Process this token */
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;
+}
+
+void FGAPIENTRY glutInitContextProfile( int profile )
+{
+ /* We will make use of this value when creating a new OpenGL context... */
+ fgState.ContextProfile = profile;
+}
+
+/* -------------- User Defined Error/Warning Handler Support -------------- */
+
+/*
+ * Sets the user error handler (note the use of va_list for the args to the fmt)
+ */
+void FGAPIENTRY glutInitErrorFunc( void (* vfgError) ( const char *fmt, va_list ap ) )
+{
+ /* This allows user programs to handle freeglut errors */
+ fgState.ErrorFunc = vfgError;
+}
+
+/*
+ * Sets the user warning handler (note the use of va_list for the args to the fmt)
+ */
+void FGAPIENTRY glutInitWarningFunc( void (* vfgWarning) ( const char *fmt, va_list ap ) )
+{
+ /* This allows user programs to handle freeglut warnings */
+ fgState.WarningFunc = vfgWarning;
+}
+
/*** END OF FILE ***/
projects / freeglut / blobdiff