--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/x11/SDL_x11modes.c	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,534 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+/* Utilities for getting and setting the X display mode */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "SDL_timer.h"
+#include "SDL_error.h"
+#include "SDL_events.h"
+#include "SDL_events_c.h"
+#include "SDL_x11video.h"
+#include "SDL_x11wm_c.h"
+#include "SDL_x11modes_c.h"
+
+
+#ifdef XFREE86_VM
+Bool XVidMode(GetModeInfo, (Display *dpy, int scr, XF86VidModeModeInfo *info))
+{
+    XF86VidModeModeLine *l = (XF86VidModeModeLine*)((char*)info + sizeof info->dotclock);
+    return XVidMode(GetModeLine, (dpy, scr, &info->dotclock, l));
+}
+#endif /* XFREE86_VM */
+
+#ifdef XFREE86_VM
+static void save_mode(_THIS)
+{
+    memset(&saved_mode, 0, sizeof(saved_mode));
+    XVidMode(GetModeInfo, (SDL_Display,SDL_Screen,&saved_mode));
+    XVidMode(GetViewPort, (SDL_Display,SDL_Screen,&saved_view.x,&saved_view.y));
+}
+#endif
+
+#ifdef XFREE86_VM
+static void restore_mode(_THIS)
+{
+    XF86VidModeModeLine mode;
+    int unused;
+
+    if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &unused, &mode)) ) {
+        if ( (saved_mode.hdisplay != mode.hdisplay) ||
+             (saved_mode.vdisplay != mode.vdisplay) ) {
+            XVidMode(SwitchToMode, (SDL_Display, SDL_Screen, &saved_mode));
+        }
+    }
+    if ( (saved_view.x != 0) || (saved_view.y != 0) ) {
+        XVidMode(SetViewPort, (SDL_Display, SDL_Screen, saved_view.x, saved_view.y));
+    }
+}
+#endif
+
+#ifdef XFREE86_VM
+static int cmpmodes(const void *va, const void *vb)
+{
+    XF86VidModeModeInfo *a = *(XF86VidModeModeInfo**)va;
+    XF86VidModeModeInfo *b = *(XF86VidModeModeInfo**)vb;
+    if(a->hdisplay > b->hdisplay)
+        return -1;
+    return b->vdisplay - a->vdisplay;
+}
+#endif
+
+static void set_best_resolution(_THIS, int width, int height)
+{
+#ifdef XFREE86_VM
+    if ( use_vidmode ) {
+        XF86VidModeModeLine mode;
+        XF86VidModeModeInfo **modes;
+        int i;
+        int nmodes;
+
+        if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &i, &mode)) &&
+             XVidMode(GetAllModeLines, (SDL_Display,SDL_Screen,&nmodes,&modes))){
+            qsort(modes, nmodes, sizeof *modes, cmpmodes);
+#ifdef XFREE86_DEBUG
+  printf("Available modes:\n");
+  for ( i = 0; i < nmodes; ++i ) {
+    printf("Mode %d: %dx%d\n", i, modes[i]->hdisplay, modes[i]->vdisplay);
+  }
+#endif
+            for ( i = nmodes-1; i > 0 ; --i ) {
+                if ( (modes[i]->hdisplay >= width) &&
+                     (modes[i]->vdisplay >= height) )
+                    break;
+            }
+            if ( (modes[i]->hdisplay != mode.hdisplay) ||
+                 (modes[i]->vdisplay != mode.vdisplay) ) {
+                XVidMode(SwitchToMode, (SDL_Display, SDL_Screen, modes[i]));
+            }
+            XFree(modes);
+        }
+    }
+#endif /* XFREE86_VM */
+}
+
+static void get_real_resolution(_THIS, int* w, int* h)
+{
+#ifdef XFREE86_VM
+    if ( use_vidmode ) {
+        XF86VidModeModeLine mode;
+        int unused;
+
+        if ( XVidMode(GetModeLine, (SDL_Display, SDL_Screen, &unused, &mode)) ) {
+            *w = mode.hdisplay;
+            *h = mode.vdisplay;
+            return;
+        }
+    }
+#endif
+    *w = DisplayWidth(SDL_Display, SDL_Screen);
+    *h = DisplayHeight(SDL_Display, SDL_Screen);
+}
+
+/* Called after mapping a window - waits until the window is mapped */
+void X11_WaitMapped(_THIS, Window win)
+{
+    XEvent event;
+    do {
+        XMaskEvent(SDL_Display, StructureNotifyMask, &event);
+    } while ( (event.type != MapNotify) || (event.xmap.event != win) );
+}
+
+/* Called after unmapping a window - waits until the window is unmapped */
+void X11_WaitUnmapped(_THIS, Window win)
+{
+    XEvent event;
+    do {
+        XMaskEvent(SDL_Display, StructureNotifyMask, &event);
+    } while ( (event.type != UnmapNotify) || (event.xunmap.event != win) );
+}
+
+static void move_cursor_to(_THIS, int x, int y)
+{
+    XWarpPointer(SDL_Display, None, SDL_Root, 0, 0, 0, 0, x, y);
+}
+
+static int add_visual(_THIS, int depth, int class)
+{
+    XVisualInfo vi;
+    if(XMatchVisualInfo(SDL_Display, SDL_Screen, depth, class, &vi)) {
+	int n = this->hidden->nvisuals;
+	this->hidden->visuals[n].depth = vi.depth;
+	this->hidden->visuals[n].visual = vi.visual;
+	this->hidden->nvisuals++;
+    }
+    return(this->hidden->nvisuals);
+}
+static int add_visual_byid(_THIS, const char *visual_id)
+{
+    XVisualInfo *vi, template;
+    int nvis;
+
+    if ( visual_id ) {
+        memset(&template, 0, (sizeof template));
+        template.visualid = strtol(visual_id, NULL, 0);
+        vi = XGetVisualInfo(SDL_Display, VisualIDMask, &template, &nvis);
+        if ( vi ) {
+	    int n = this->hidden->nvisuals;
+	    this->hidden->visuals[n].depth = vi->depth;
+	    this->hidden->visuals[n].visual = vi->visual;
+	    this->hidden->nvisuals++;
+            XFree(vi);
+        }
+    }
+    return(this->hidden->nvisuals);
+}
+
+/* Global for the error handler */
+int vm_event, vm_error = -1;
+
+int X11_GetVideoModes(_THIS)
+{
+#ifdef XFREE86_VM
+    int buggy_X11;
+    int vm_major, vm_minor;
+    int nmodes;
+    XF86VidModeModeInfo **modes;
+#endif
+    int i;
+
+    vm_error = -1;
+    use_vidmode = 0;
+#ifdef XFREE86_VM
+    /* Metro-X 4.3.0 and earlier has a broken implementation of
+       XF86VidModeGetAllModeLines() - it hangs the client.
+     */
+    buggy_X11 = 0;
+    if ( strcmp(ServerVendor(SDL_Display), "Metro Link Incorporated") == 0 ) {
+        FILE *metro_fp;
+
+        metro_fp = fopen("/usr/X11R6/lib/X11/Metro/.version", "r");
+        if ( metro_fp != NULL ) {
+            int major, minor, patch, version;
+            major = 0; minor = 0; patch = 0;
+            fscanf(metro_fp, "%d.%d.%d", &major, &minor, &patch);
+            version = major*100+minor*10+patch;
+            if ( version < 431 ) {
+                buggy_X11 = 1;
+            }
+            fclose(metro_fp);
+        }
+    }
+#if defined(__alpha__) || defined(__powerpc__)
+    /* The alpha and PPC XFree86 servers are also buggy */
+    buggy_X11 = 1;
+#endif
+    /* Enumerate the available fullscreen modes */
+    if ( ! buggy_X11 ) {
+        if ( XVidMode(QueryExtension, (SDL_Display, &vm_event, &vm_error)) &&
+              XVidMode(QueryVersion, (SDL_Display, &vm_major, &vm_minor)) ) {
+#ifdef BROKEN_XFREE86_4001
+#ifdef X_XF86VidModeGetDotClocks  /* Compiled under XFree86 4.0 */
+                /* Earlier X servers hang when doing vidmode */
+		if ( vm_major < 2 ) {
+#ifdef DEBUG_XF86
+  printf("Compiled under XFree86 4.0, server is XFree86 3.X\n");
+#endif
+                    buggy_X11 = 1;
+                }
+#else
+		/* XFree86 3.X code works with XFree86 4.0 servers */;
+#endif /* XFree86 4.0 */
+#endif /* XFree86 4.02 and newer are fixed wrt backwards compatibility */
+        } else {
+            buggy_X11 = 1;
+        }
+    }
+    if ( ! buggy_X11 &&
+         XVidMode(GetAllModeLines, (SDL_Display, SDL_Screen,&nmodes,&modes)) ) {
+
+        qsort(modes, nmodes, sizeof *modes, cmpmodes);
+        SDL_modelist = (SDL_Rect **)malloc((nmodes+1)*sizeof(SDL_Rect *));
+        if ( SDL_modelist ) {
+            for ( i=0; i<nmodes; ++i ) {
+                SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
+                if ( SDL_modelist[i] == NULL ) {
+                    break;
+                }
+                SDL_modelist[i]->x = 0;
+                SDL_modelist[i]->y = 0;
+                SDL_modelist[i]->w = modes[i]->hdisplay;
+                SDL_modelist[i]->h = modes[i]->vdisplay;
+            }
+            SDL_modelist[i] = NULL;
+        }
+        XFree(modes);
+
+        use_vidmode = 1;
+        save_mode(this);
+    }
+#endif /* XFREE86_VM */
+
+    {
+	static int depth_list[] = { 32, 24, 16, 15, 8 };
+	int j, np;
+	int use_directcolor = 1;
+	XPixmapFormatValues *pf;
+
+	/* Search for the visuals in deepest-first order, so that the first
+	   will be the richest one */
+	if ( getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {
+		use_directcolor = 0;
+	}
+	this->hidden->nvisuals = 0;
+	if ( ! add_visual_byid(this, getenv("SDL_VIDEO_X11_VISUALID")) ) {
+		for ( i=0; i<SDL_TABLESIZE(depth_list); ++i ) {
+			if ( depth_list[i] > 8 ) {
+				if ( use_directcolor ) {
+					add_visual(this, depth_list[i], DirectColor);
+				}
+				add_visual(this, depth_list[i], TrueColor);
+			} else {
+				add_visual(this, depth_list[i], PseudoColor);
+				add_visual(this, depth_list[i], StaticColor);
+			}
+		}
+	}
+	if ( this->hidden->nvisuals == 0 ) {
+	    SDL_SetError("Found no sufficiently capable X11 visuals");
+	    return -1;
+	}
+	    
+	/* look up the pixel quantum for each depth */
+	pf = XListPixmapFormats(SDL_Display, &np);
+	for(i = 0; i < this->hidden->nvisuals; i++) {
+	    int d = this->hidden->visuals[i].depth;
+	    for(j = 0; j < np; j++)
+		if(pf[j].depth == d)
+		    break;
+	    this->hidden->visuals[i].bpp = j < np ? pf[j].bits_per_pixel : d;
+	}
+
+	XFree(pf);
+    }
+
+    if ( SDL_modelist == NULL ) {
+        SDL_modelist = (SDL_Rect **)malloc((1+1)*sizeof(SDL_Rect *));
+        i = 0;
+        if ( SDL_modelist ) {
+            SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
+            if ( SDL_modelist[i] ) {
+                SDL_modelist[i]->x = 0;
+                SDL_modelist[i]->y = 0;
+                SDL_modelist[i]->w = DisplayWidth(SDL_Display, SDL_Screen);
+                SDL_modelist[i]->h = DisplayHeight(SDL_Display, SDL_Screen);
+                ++i;
+            }
+            SDL_modelist[i] = NULL;
+        }
+    }
+
+#ifdef DEBUG_XF86
+    if ( use_vidmode ) {
+        fprintf(stderr, "XFree86 VidMode is enabled\n");
+    }
+    if ( SDL_modelist ) {
+        fprintf(stderr, "X11 video mode list:\n");
+        for ( i=0; SDL_modelist[i]; ++i ) {
+            fprintf(stderr, "\t%dx%d\n",
+                SDL_modelist[i]->w, SDL_modelist[i]->h);
+        }
+    }
+#endif /* DEBUG_XF86 */
+    return 0;
+}
+
+int X11_SupportedVisual(_THIS, SDL_PixelFormat *format)
+{
+    int i;
+    for(i = 0; i < this->hidden->nvisuals; i++)
+	if(this->hidden->visuals[i].bpp == format->BitsPerPixel)
+	    return 1;
+    return 0;
+}
+
+SDL_Rect **X11_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+    if ( X11_SupportedVisual(this, format) ) {
+        if ( flags & SDL_FULLSCREEN ) {
+            return(SDL_modelist);
+        } else {
+            return((SDL_Rect **)-1);
+        }
+    } else {
+        return((SDL_Rect **)0);
+    }
+}
+
+void X11_FreeVideoModes(_THIS)
+{
+    int i;
+
+    if ( SDL_modelist ) {
+        for ( i=0; SDL_modelist[i]; ++i ) {
+            free(SDL_modelist[i]);
+        }
+        free(SDL_modelist);
+        SDL_modelist = NULL;
+    }
+}
+
+int X11_ResizeFullScreen(_THIS)
+{
+    int x, y;
+    int real_w, real_h;
+
+    if ( currently_fullscreen ) {
+        /* Switch resolution and cover it with the FSwindow */
+        move_cursor_to(this, 0, 0);
+        set_best_resolution(this, current_w, current_h);
+        move_cursor_to(this, 0, 0);
+        get_real_resolution(this, &real_w, &real_h);
+        XResizeWindow(SDL_Display, FSwindow, real_w, real_h);
+        move_cursor_to(this, real_w/2, real_h/2);
+
+        /* Center and reparent the drawing window */
+        x = (real_w - current_w)/2;
+        y = (real_h - current_h)/2;
+        XReparentWindow(SDL_Display, SDL_Window, FSwindow, x, y);
+        /* FIXME: move the mouse to the old relative location */
+        XSync(SDL_Display, True);   /* Flush spurious mode change events */
+    }
+    return(1);
+}
+
+void X11_QueueEnterFullScreen(_THIS)
+{
+    switch_waiting = 0x01 | SDL_FULLSCREEN;
+    switch_time = SDL_GetTicks() + 1500;
+#if 0 /* This causes a BadMatch error if the window is iconified (not needed) */
+    XSetInputFocus(SDL_Display, WMwindow, RevertToNone, CurrentTime);
+#endif
+}
+
+int X11_EnterFullScreen(_THIS)
+{
+    int okay;
+#if 0
+    Window tmpwin, *windows;
+    int i, nwindows;
+#endif
+
+    okay = 1;
+    if ( ! currently_fullscreen ) {
+        int real_w, real_h;
+
+        /* Map the fullscreen window to blank the screen */
+        get_real_resolution(this, &real_w, &real_h);
+        XResizeWindow(SDL_Display, FSwindow, real_w, real_h);
+        XMapRaised(SDL_Display, FSwindow);
+        X11_WaitMapped(this, FSwindow);
+
+#if 0 /* This seems to break WindowMaker in focus-follows-mouse mode */
+        /* Make sure we got to the top of the window stack */
+        if ( XQueryTree(SDL_Display, SDL_Root, &tmpwin, &tmpwin,
+                                &windows, &nwindows) && windows ) {
+            /* If not, try to put us there - if fail... oh well */
+            if ( windows[nwindows-1] != FSwindow ) {
+                tmpwin = windows[nwindows-1];
+                for ( i=0; i<nwindows; ++i ) {
+                    if ( windows[i] == FSwindow ) {
+                        memcpy(&windows[i], &windows[i+1],
+                               (nwindows-i-1)*sizeof(windows[i]));
+                        break;
+                    }
+                }
+                windows[nwindows-1] = FSwindow;
+                XRestackWindows(SDL_Display, windows, nwindows);
+                XSync(SDL_Display, False);
+            }
+            XFree(windows);
+        }
+#else
+	XRaiseWindow(SDL_Display, FSwindow);
+#endif
+
+        /* Grab the mouse on the fullscreen window
+           The event handling will know when we become active, and then
+           enter fullscreen mode if we can't grab the mouse this time.
+         */
+#ifdef GRAB_FULLSCREEN
+        if ( (XGrabPointer(SDL_Display, FSwindow, True, 0,
+                          GrabModeAsync, GrabModeAsync,
+                          FSwindow, None, CurrentTime) != GrabSuccess) ||
+             (XGrabKeyboard(SDL_Display, WMwindow, True,
+                          GrabModeAsync, GrabModeAsync, CurrentTime) != 0) ) {
+#else
+        if ( XGrabPointer(SDL_Display, FSwindow, True, 0,
+                          GrabModeAsync, GrabModeAsync,
+                          FSwindow, None, CurrentTime) != GrabSuccess ) {
+#endif
+            /* We lost the grab, so try again later */
+            XUnmapWindow(SDL_Display, FSwindow);
+            X11_WaitUnmapped(this, FSwindow);
+            X11_QueueEnterFullScreen(this);
+            return(0);
+        }
+#ifdef GRAB_FULLSCREEN
+	SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
+#endif
+
+#ifdef XFREE86_VM
+        /* Save the current video mode */
+        if ( use_vidmode ) {
+            XVidMode(LockModeSwitch, (SDL_Display, SDL_Screen, True));
+        }
+#endif
+        currently_fullscreen = 1;
+
+        /* Set the new resolution */
+        okay = X11_ResizeFullScreen(this);
+        if ( ! okay ) {
+            X11_LeaveFullScreen(this);
+        }
+	/* Set the colormap */
+	if ( SDL_XColorMap ) {
+		XInstallColormap(SDL_Display, SDL_XColorMap);
+	}
+    }
+    X11_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);
+    return(okay);
+}
+
+int X11_LeaveFullScreen(_THIS)
+{
+    if ( currently_fullscreen ) {
+        XReparentWindow(SDL_Display, SDL_Window, WMwindow, 0, 0);
+#ifdef XFREE86_VM
+        if ( use_vidmode ) {
+            restore_mode(this);
+            XVidMode(LockModeSwitch, (SDL_Display, SDL_Screen, False));
+        }
+#endif
+        XUnmapWindow(SDL_Display, FSwindow);
+        X11_WaitUnmapped(this, FSwindow);
+#ifdef GRAB_FULLSCREEN
+        XUngrabKeyboard(SDL_Display, CurrentTime);
+#endif
+        XSync(SDL_Display, True);   /* Flush spurious mode change events */
+        currently_fullscreen = 0;
+    }
+    /* If we get popped out of fullscreen mode for some reason, input_grab
+       will still have the SDL_GRAB_FULLSCREEN flag set, since this is only
+       temporary.  In this case, release the grab unless the input has been
+       explicitly grabbed.
+     */
+    X11_GrabInputNoLock(this, this->input_grab & ~SDL_GRAB_FULLSCREEN);
+    return(0);
+}