/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */
+#if TARGET_HOST_POSIX_X11
+static int xrandr_resize(int xsz, int ysz, int rate, int just_checking)
+{
+#ifdef HAVE_X11_EXTENSIONS_XRANDR_H
+ int event_base, error_base, ver_major, ver_minor, use_rate;
+ XRRScreenConfiguration *xrr_config = 0;
+ Status result = -1;
+
+ /* must check at runtime for the availability of the extension */
+ if(!XRRQueryExtension(fgDisplay.Display, &event_base, &error_base)) {
+ return -1;
+ }
+
+ XRRQueryVersion(fgDisplay.Display, &ver_major, &ver_minor);
+
+ /* we only heed the rate if we CAN actually use it (Xrandr >= 1.1) and
+ * the user actually cares about it (rate > 0)
+ */
+ use_rate = rate > 0 && ver_major >= 1 && ver_minor >= 1;
+
+ /* this loop is only so that the whole thing will be repeated if someone
+ * else changes video mode between our query the current information and
+ * the attempt to change it.
+ */
+ do {
+ XRRScreenSize *ssizes;
+ short *rates;
+ Rotation rot;
+ int i, ssizes_count, rates_count, curr, res_idx = -1;
+ Time timestamp, cfg_timestamp;
+
+ if(xrr_config) {
+ XRRFreeScreenConfigInfo(xrr_config);
+ }
+
+ if(!(xrr_config = XRRGetScreenInfo(fgDisplay.Display, fgDisplay.RootWindow))) {
+ fgWarning("XRRGetScreenInfo failed");
+ break;
+ }
+ ssizes = XRRConfigSizes(xrr_config, &ssizes_count);
+ curr = XRRConfigCurrentConfiguration(xrr_config, &rot);
+ timestamp = XRRConfigTimes(xrr_config, &cfg_timestamp);
+
+ /* if either of xsz or ysz are unspecified, use the current values */
+ if(xsz <= 0)
+ xsz = fgState.GameModeSize.X = ssizes[curr].width;
+ if(ysz <= 0)
+ ysz = fgState.GameModeSize.Y = ssizes[curr].height;
+
+
+ if(xsz == ssizes[curr].width && ysz == ssizes[curr].height) {
+ /* no need to switch, we're already in the requested resolution */
+ res_idx = curr;
+ } else {
+ for(i=0; i<ssizes_count; i++) {
+ if(ssizes[i].width == xsz && ssizes[i].height == ysz) {
+ res_idx = i;
+ break; /* found it */
+ }
+ }
+ }
+ if(res_idx == -1)
+ break; /* no matching resolution */
+
+#if RANDR_MAJOR >= 1 && RANDR_MINOR >= 1
+ if(rate <= 0) {
+ fgState.GameModeRefresh = XRRConfigCurrentRate(xrr_config);
+ }
+
+ if(use_rate) {
+ rate = fgState.GameModeRefresh;
+
+ /* for the selected resolution, let's find out if there is
+ * a matching refresh rate available.
+ */
+ rates = XRRConfigRates(xrr_config, res_idx, &rates_count);
+
+ for(i=0; i<rates_count; i++) {
+ if(rates[i] == rate) {
+ break;
+ }
+ }
+ if(i == rates_count) {
+ break; /* no matching rate */
+ }
+ }
+#endif
+
+ if(just_checking) {
+ result = 0;
+ break;
+ }
+
+#if RANDR_MAJOR >= 1 && RANDR_MINOR >= 1
+ if(use_rate)
+ result = XRRSetScreenConfigAndRate(fgDisplay.Display, xrr_config,
+ fgDisplay.RootWindow, res_idx, rot, rate, timestamp);
+ else
+#endif
+ result = XRRSetScreenConfig(fgDisplay.Display, xrr_config,
+ fgDisplay.RootWindow, res_idx, rot, timestamp);
+
+ } while(result == RRSetConfigInvalidTime);
+
+ if(xrr_config) {
+ XRRFreeScreenConfigInfo(xrr_config);
+ }
+
+ if(result == 0) {
+ return 0;
+ }
+
+#endif /* HAVE_X11_EXTENSIONS_XRANDR_H */
+ return -1;
+}
+#endif /* TARGET_HOST_POSIX_X11 */
+
/*
* Remembers the current visual settings, so that
* we can change them and restore later...
static void fghRememberState( void )
{
#if TARGET_HOST_POSIX_X11
+ int event_base, error_base;
+
+ /*
+ * Remember the current pointer location before going fullscreen
+ * for restoring it later:
+ */
+ Window junk_window;
+ unsigned int junk_mask;
+
+ XQueryPointer(fgDisplay.Display, fgDisplay.RootWindow,
+ &junk_window, &junk_window,
+ &fgDisplay.DisplayPointerX, &fgDisplay.DisplayPointerY,
+ &fgDisplay.DisplayPointerX, &fgDisplay.DisplayPointerY, &junk_mask);
+
+# ifdef HAVE_X11_EXTENSIONS_XRANDR_H
+ if(XRRQueryExtension(fgDisplay.Display, &event_base, &error_base)) {
+ XRRScreenConfiguration *xrr_config;
+ XRRScreenSize *ssizes;
+ Rotation rot;
+ int ssize_count, curr;
+
+ if((xrr_config = XRRGetScreenInfo(fgDisplay.Display, fgDisplay.RootWindow))) {
+ ssizes = XRRConfigSizes(xrr_config, &ssize_count);
+ curr = XRRConfigCurrentConfiguration(xrr_config, &rot);
+
+ fgDisplay.prev_xsz = ssizes[curr].width;
+ fgDisplay.prev_ysz = ssizes[curr].height;
+ fgDisplay.prev_refresh = -1;
+
+# if RANDR_MAJOR >= 1 && RANDR_MINOR >= 1
+ if(fgState.GameModeRefresh != -1) {
+ fgDisplay.prev_refresh = XRRConfigCurrentRate(xrr_config);
+ }
+# endif
+
+ fgDisplay.prev_size_valid = 1;
+
+ XRRFreeScreenConfigInfo(xrr_config);
+ }
+ }
+# endif
/*
* This highly depends on the XFree86 extensions,
* not approved as X Consortium standards
*/
-# ifdef X_XF86VidModeGetModeLine
-
+# ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
+ if(!XF86VidModeQueryExtension(fgDisplay.Display, &event_base, &error_base)) {
+ return;
+ }
/*
* Remember the current ViewPort location of the screen to be able to
&fgDisplay.DisplayViewPortY ) )
fgWarning( "XF86VidModeGetViewPort failed" );
- /*
- * Remember the current pointer location before going fullscreen
- * for restoring it later:
- */
- {
- Window junk_window;
- unsigned int mask;
-
- XQueryPointer(
- fgDisplay.Display, fgDisplay.RootWindow,
- &junk_window, &junk_window,
- &fgDisplay.DisplayPointerX, &fgDisplay.DisplayPointerY,
- &fgDisplay.DisplayPointerX, &fgDisplay.DisplayPointerY, &mask
- );
- }
/* Query the current display settings: */
fgDisplay.DisplayModeValid =
);
if( !fgDisplay.DisplayModeValid )
- fgWarning( "XF86VidModeGetModeLine failed" );
-
-# else
- /*
- * XXX warning fghRememberState: missing XFree86 video mode extensions,
- * XXX game mode will not change screen resolution when activated
- */
+ fgWarning( "XF86VidModeGetModeLine failed" );
# endif
#elif TARGET_HOST_MS_WINDOWS
static void fghRestoreState( void )
{
#if TARGET_HOST_POSIX_X11
-
-# ifdef X_XF86VidModeGetAllModeLines
/* Restore the remembered pointer position: */
XWarpPointer(
fgDisplay.Display, None, fgDisplay.RootWindow, 0, 0, 0, 0,
fgDisplay.DisplayPointerX, fgDisplay.DisplayPointerY
);
+
+# ifdef HAVE_X11_EXTENSIONS_XRANDR_H
+ if(fgDisplay.prev_size_valid) {
+ if(xrandr_resize(fgDisplay.prev_xsz, fgDisplay.prev_ysz, fgDisplay.prev_refresh, 0) != -1) {
+ fgDisplay.prev_size_valid = 0;
+# ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
+ fgDisplay.DisplayModeValid = 0;
+# endif
+ return;
+ }
+ }
+# endif
+
+
+
+# ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
/*
* This highly depends on the XFree86 extensions,
* not approved as X Consortium standards
*/
XFlush( fgDisplay.Display );
+ fgDisplay.DisplayModeValid = 0;
+# ifdef HAVE_X11_EXTENSIONS_XRANDR_H
+ fgDisplay.prev_size_valid = 0;
+# endif
+
break;
}
}
XFree( displayModes );
}
-# else
- /*
- * XXX warning fghRestoreState: missing XFree86 video mode extensions,
- * XXX game mode will not change screen resolution when activated
- */
# endif
#elif TARGET_HOST_MS_WINDOWS
- /* Restore the previously rememebered desktop display settings */
+ /* Restore the previously remembered desktop display settings */
ChangeDisplaySettingsEx( fgDisplay.DisplayName,&fgDisplay.DisplayMode, 0,0,0 );
#endif
}
#if TARGET_HOST_POSIX_X11
-#ifdef X_XF86VidModeGetAllModeLines
+#ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
/*
* Checks a single display mode settings against user's preferences.
displayModes[ i ]->vdisplay,
fgState.GameModeDepth,
( exactMatch ? refresh : fgState.GameModeRefresh ) ) ) {
+ if (!exactMatch)
+ {
+ /* Update the chosen refresh rate, otherwise a
+ * glutGameModeGet(GLUT_GAME_MODE_REFRESH_RATE) would not
+ * return the right values
+ */
+ fgState.GameModeRefresh = refresh;
+ }
+
return i;
}
}
GLboolean success = GL_FALSE;
#if TARGET_HOST_POSIX_X11
+ /* first try to use XRandR, then fallback to XF86VidMode */
+# ifdef HAVE_X11_EXTENSIONS_XRANDR_H
+ if(xrandr_resize(fgState.GameModeSize.X, fgState.GameModeSize.Y,
+ fgState.GameModeRefresh, haveToTest) != -1) {
+ return GL_TRUE;
+ }
+# endif
+
+
/*
* This highly depends on the XFree86 extensions,
* not approved as X Consortium standards
*/
-# ifdef X_XF86VidModeGetAllModeLines
+# ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
/*
- * This is also used by applcations which check modes by calling
+ * This is also used by applications which check modes by calling
* glutGameModeGet(GLUT_GAME_MODE_POSSIBLE), so allow the check:
*/
if( haveToTest || fgDisplay.DisplayModeValid )
XF86VidModeModeInfo** displayModes;
int i, displayModesCount;
+ /* If we don't have a valid modeline in the display structure, which
+ * can happen if this is called from glutGameModeGet instead of
+ * glutEnterGameMode, then we need to query the current mode, to make
+ * unspecified settings to default to their current values.
+ */
+ if(!fgDisplay.DisplayModeValid) {
+ if(!XF86VidModeGetModeLine(fgDisplay.Display, fgDisplay.Screen,
+ &fgDisplay.DisplayModeClock, &fgDisplay.DisplayMode)) {
+ return success;
+ }
+ }
+
+ if (fgState.GameModeSize.X == -1)
+ {
+ fgState.GameModeSize.X = fgDisplay.DisplayMode.hdisplay;
+ }
+ if (fgState.GameModeSize.Y == -1)
+ {
+ fgState.GameModeSize.Y = fgDisplay.DisplayMode.vdisplay;
+ }
+ if (fgState.GameModeDepth == -1)
+ {
+ /* can't get color depth from this, nor can we change it, do nothing
+ * TODO: get with XGetVisualInfo()? but then how to set?
+ */
+ }
+ if (fgState.GameModeRefresh == -1)
+ {
+ /* Compute the displays refresh rate, dotclock comes in kHz. */
+ int refresh = ( fgDisplay.DisplayModeClock * 1000 ) /
+ ( fgDisplay.DisplayMode.htotal * fgDisplay.DisplayMode.vtotal );
+
+ fgState.GameModeRefresh = refresh;
+ }
+
+ /* query all possible display modes */
if( !XF86VidModeGetAllModeLines(
fgDisplay.Display,
fgDisplay.Screen,
XFree( displayModes );
}
-# else
-
- /*
- * XXX warning fghChangeDisplayMode: missing XFree86 video mode extensions,
- * XXX game mode will not change screen resolution when activated
- */
- success = GL_TRUE;
-
# endif
+
#elif TARGET_HOST_MS_WINDOWS
DEVMODE devMode;
char *fggmstr = NULL;
+ char displayMode[300];
success = GL_FALSE;
EnumDisplaySettings( fgDisplay.DisplayName, -1, &devMode );
- devMode.dmFields |= DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
+ devMode.dmFields = 0;
- devMode.dmPelsWidth = fgState.GameModeSize.X;
- devMode.dmPelsHeight = fgState.GameModeSize.Y;
- devMode.dmBitsPerPel = fgState.GameModeDepth;
- devMode.dmDisplayFrequency = fgState.GameModeRefresh;
- devMode.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY;
+ if (fgState.GameModeSize.X!=-1)
+ {
+ devMode.dmPelsWidth = fgState.GameModeSize.X;
+ devMode.dmFields |= DM_PELSWIDTH;
+ }
+ if (fgState.GameModeSize.Y!=-1)
+ {
+ devMode.dmPelsHeight = fgState.GameModeSize.Y;
+ devMode.dmFields |= DM_PELSHEIGHT;
+ }
+ if (fgState.GameModeDepth!=-1)
+ {
+ devMode.dmBitsPerPel = fgState.GameModeDepth;
+ devMode.dmFields |= DM_BITSPERPEL;
+ }
+ if (fgState.GameModeRefresh!=-1)
+ {
+ devMode.dmDisplayFrequency = fgState.GameModeRefresh;
+ devMode.dmFields |= DM_DISPLAYFREQUENCY;
+ }
switch ( ChangeDisplaySettingsEx(fgDisplay.DisplayName, &devMode, NULL, haveToTest ? CDS_TEST : CDS_FULLSCREEN , NULL) )
{
case DISP_CHANGE_SUCCESSFUL:
success = GL_TRUE;
- /* update vars in case if windows switched to proper mode */
- EnumDisplaySettings( fgDisplay.DisplayName, FREEGLUT_ENUM_CURRENT_SETTINGS, &devMode );
- fgState.GameModeSize.X = devMode.dmPelsWidth;
- fgState.GameModeSize.Y = devMode.dmPelsHeight;
- fgState.GameModeDepth = devMode.dmBitsPerPel;
- fgState.GameModeRefresh = devMode.dmDisplayFrequency;
+ if (!haveToTest)
+ {
+ /* update vars in case if windows switched to proper mode */
+ EnumDisplaySettings( fgDisplay.DisplayName, FREEGLUT_ENUM_CURRENT_SETTINGS, &devMode );
+ fgState.GameModeSize.X = devMode.dmPelsWidth;
+ fgState.GameModeSize.Y = devMode.dmPelsHeight;
+ fgState.GameModeDepth = devMode.dmBitsPerPel;
+ fgState.GameModeRefresh = devMode.dmDisplayFrequency;
+ }
break;
case DISP_CHANGE_RESTART:
fggmstr = "The computer must be restarted for the graphics mode to work.";
}
if ( !success )
- fgWarning(fggmstr); /* I'd rather get info whats going on in my program than wonder about */
- /* magic happenings behind my back, its lib for devels at last ;) */
+ {
+ /* I'd rather get info whats going on in my program than wonder about */
+ /* magic happenings behind my back, its lib for devels at last ;) */
+
+ /* append display mode to error to make things more informative */
+ sprintf(displayMode,"%s Problem with requested mode: %ix%i:%i@%i", fggmstr, devMode.dmPelsWidth, devMode.dmPelsHeight, devMode.dmBitsPerPel, devMode.dmDisplayFrequency);
+ fgWarning(displayMode);
+ }
#endif
return success;
*/
void FGAPIENTRY glutGameModeString( const char* string )
{
- int width = 640, height = 480, depth = 16, refresh = 72;
+ int width = -1, height = -1, depth = -1, refresh = -1;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGameModeString" );
string
);
- /* Hopefully it worked, and if not, we still have the default values */
+ /* All values not specified are now set to -1, which means those
+ * aspects of the current display mode are not changed in
+ * fghChangeDisplayMode() above.
+ */
fgState.GameModeSize.X = width;
fgState.GameModeSize.Y = height;
fgState.GameModeDepth = depth;
* the window before we can grab the pointer into it:
*/
XSync( fgDisplay.Display, False );
-
/*
* Grab the pointer to confine it into the window after the calls to
* XWrapPointer() which ensure that the pointer really enters the window.
GrabModeAsync, GrabModeAsync,
fgStructure.GameModeWindow->Window.Handle, None, CurrentTime) )
usleep( 100 );
-
/*
* Change input focus to the new window. This will exit the application
* if the new window is not viewable yet, see the XGrabPointer loop above.
fgState.GameModeSize.X/2, fgState.GameModeSize.Y/2
);
-# ifdef X_XF86VidModeSetViewPort
+# ifdef HAVE_X11_EXTENSIONS_XF86VMODE_H
if( fgDisplay.DisplayModeValid )
{
projects / freeglut / blobdiff