/* context_x11.c general x11 context layer Copyright (C) 1996-1997 Id Software, Inc. Copyright (C) 2000 Zephaniah E. Hull Copyright (C) 2000, 2001 Jeff Teunissen This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ static const char rcsid[] = "$Id$"; #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #include #include #include #ifdef HAVE_UNISTD_H # include #endif #ifdef HAVE_EXECINFO_H # include #endif #include #include #include #include #include #include #include #include #ifdef HAVE_VIDMODE # include #endif #include "QF/console.h" #include "QF/cvar.h" #include "QF/input.h" #include "QF/qargs.h" #include "QF/qtypes.h" #include "QF/sys.h" #include "QF/va.h" #include "QF/vid.h" #include "context_x11.h" #include "dga_check.h" static void (*event_handlers[LASTEvent]) (XEvent *); qboolean oktodraw = false; int x_shmeventtype; static int x_disp_ref_count = 0; Display *x_disp = NULL; int x_screen; Window x_root = None; XVisualInfo *x_visinfo; Visual *x_vis; Window x_win; Cursor nullcursor = None; static Atom aWMDelete = 0; Time x_time; #define X_MASK (VisibilityChangeMask | StructureNotifyMask | ExposureMask) #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | PointerMotionMask) #ifdef HAVE_VIDMODE static XF86VidModeModeInfo **vidmodes; static int nummodes; static int original_mode = 0; static vec3_t x_gamma = {-1, -1, -1}; static qboolean vidmode_avail = false; #endif static qboolean vidmode_active = false; qboolean vid_fullscreen_active; static qboolean vid_context_created = false; static int window_x, window_y, window_saved; qboolean X11_AddEvent (int event, void (*event_handler) (XEvent *)) { if (event >= LASTEvent) { Sys_Printf ("event: %d, LASTEvent: %d\n", event, LASTEvent); return false; } if (event_handlers[event]) return false; event_handlers[event] = event_handler; return true; } qboolean X11_RemoveEvent (int event, void (*event_handler) (XEvent *)) { if (event >= LASTEvent) return false; if (event_handlers[event] != event_handler) return false; event_handlers[event] = NULL; return true; } void X11_ProcessEventProxy(XEvent *x_event) { if (x_event->type >= LASTEvent) { if (x_event->type == x_shmeventtype) oktodraw = 1; return; } if (event_handlers[x_event->type]) event_handlers[x_event->type] (x_event); } void X11_ProcessEvent (void) { XEvent x_event; XNextEvent (x_disp, &x_event); X11_ProcessEventProxy (&x_event); } void X11_ProcessEvents (void) { // Get events from X server. while (XPending (x_disp)) { X11_ProcessEvent (); } } void X11_OpenDisplay (void) { if (!x_disp) { x_disp = XOpenDisplay (NULL); if (!x_disp) { Sys_Error ("X11_OpenDisplay: Could not open display [%s]", XDisplayName (NULL)); } x_screen = DefaultScreen (x_disp); x_root = RootWindow (x_disp, x_screen); // for debugging only XSynchronize (x_disp, True); x_disp_ref_count = 1; } else { x_disp_ref_count++; } } void X11_CloseDisplay (void) { X11_RestoreGamma (); if (nullcursor != None) { XFreeCursor (x_disp, nullcursor); nullcursor = None; } if (!--x_disp_ref_count) { XCloseDisplay (x_disp); x_disp = 0; } } /* X11_CreateNullCursor Create an empty cursor (in other words, make it disappear) */ void X11_CreateNullCursor (void) { Pixmap cursormask; XGCValues xgc; GC gc; XColor dummycolour; if (nullcursor != None) return; cursormask = XCreatePixmap (x_disp, x_root, 1, 1, 1); xgc.function = GXclear; gc = XCreateGC (x_disp, cursormask, GCFunction, &xgc); XFillRectangle (x_disp, cursormask, gc, 0, 0, 1, 1); dummycolour.pixel = 0; dummycolour.red = 0; dummycolour.flags = 04; nullcursor = XCreatePixmapCursor (x_disp, cursormask, cursormask, &dummycolour, &dummycolour, 0, 0); XFreePixmap (x_disp, cursormask); XFreeGC (x_disp, gc); XDefineCursor (x_disp, x_win, nullcursor); } void X11_ForceMove (int x, int y) { int nx, ny; if (!vid_context_created) return; XMoveWindow (x_disp, x_win, x, y); XFlush(x_disp); while (1) { XEvent ev; XMaskEvent (x_disp,StructureNotifyMask,&ev); if (ev.type == ConfigureNotify) { nx = ev.xconfigure.x; ny = ev.xconfigure.y; X11_ProcessEventProxy (&ev); break; } X11_ProcessEventProxy (&ev); } // X11_GetWindowCoords (&nx, &ny); nx -= x; ny -= y; if (nx == 0 || ny == 0) { return; } x -= nx; y -= ny; #if 0 // hopefully this isn't needed! enable if it is. if (x < 1 - vid.width) x = 0; if (y < 1 - vid.height) y = 0; #endif XMoveWindow (x_disp, x_win, x, y); XSync (x_disp, false); // this is the best we can do. while (1) { XEvent ev; XMaskEvent (x_disp, StructureNotifyMask, &ev); if (ev.type == ConfigureNotify) { X11_ProcessEventProxy (&ev); break; } X11_ProcessEventProxy (&ev); } } void X11_SetVidMode (int width, int height) { const char *str = getenv ("MESA_GLX_FX"); if (vidmode_active) return; if (str && (tolower (*str) == 'f')) { Cvar_Set (vid_fullscreen, "1"); } #ifdef HAVE_VIDMODE { static int initialized = 0; if (!vidmode_avail) vidmode_avail = VID_CheckVMode (x_disp, NULL, NULL); if (!initialized && vidmode_avail) { vec3_t *temp; initialized = 1; vid_gamma_avail = true; temp = X11_GetGamma (); if (temp && temp[0] > 0) { x_gamma[0] = (*temp)[0]; x_gamma[1] = (*temp)[1]; x_gamma[2] = (*temp)[2]; vid_gamma_avail = true; free (temp); } } if (vid_fullscreen->int_val && vidmode_avail) { int i, dotclock; int best_mode = 0; qboolean found_mode = false; XF86VidModeModeLine orig_data; XF86VidModeGetAllModeLines (x_disp, x_screen, &nummodes, &vidmodes); XF86VidModeGetModeLine (x_disp, x_screen, &dotclock, &orig_data); for (i = 0; i < nummodes; i++) { if ((vidmodes[i]->hdisplay == orig_data.hdisplay) && (vidmodes[i]->vdisplay == orig_data.vdisplay)) { original_mode = i; break; } } for (i = 0; i < nummodes; i++) { if ((vidmodes[i]->hdisplay == vid.width) && (vidmodes[i]->vdisplay == vid.height)) { found_mode = true; best_mode = i; break; } } if (found_mode) { Con_DPrintf ("VID: Chose video mode: %dx%d\n", vid.width, vid.height); XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[best_mode]); X11_ForceViewPort (); vidmode_active = true; } else { Con_Printf ("VID: Mode %dx%d can't go fullscreen.\n", vid.width, vid.height); vidmode_avail = vidmode_active = false; } } } #endif } void X11_UpdateFullscreen (cvar_t *fullscreen) { if (!vid_context_created) return; if (!fullscreen->int_val) { X11_RestoreVidMode (); if (window_saved) { X11_ForceMove (window_x, window_y); window_saved = 0; } if (in_grab) { IN_UpdateGrab (in_grab); } return; } else { if (in_grab) { IN_UpdateGrab (in_grab); } if (X11_GetWindowCoords (&window_x, &window_y)) window_saved = 1; X11_SetVidMode (scr_width, scr_height); if (in_grab) { // FIXME: why are there two of these? IN_UpdateGrab (in_grab); } if (!vidmode_active) { window_saved = 0; return; } X11_ForceMove (0, 0); XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, vid.width / 2, vid.height / 2); X11_ForceViewPort (); // Done in X11_SetVidMode but moved the window since then } } void X11_Init_Cvars (void) { vid_fullscreen = Cvar_Get ("vid_fullscreen", "0", CVAR_ARCHIVE, &X11_UpdateFullscreen, "Toggles fullscreen game mode"); vid_system_gamma = Cvar_Get ("vid_system_gamma", "1", CVAR_ARCHIVE, NULL, "Use system gamma control if available"); } void X11_CreateWindow (int width, int height) { XSetWindowAttributes attr; XClassHint *ClassHint; XSizeHints *SizeHints; char *resname; unsigned long mask; // window attributes attr.background_pixel = 0; attr.border_pixel = 0; attr.colormap = XCreateColormap (x_disp, x_root, x_vis, AllocNone); attr.event_mask = X_MASK; mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask; x_win = XCreateWindow (x_disp, x_root, 0, 0, width, height, 0, x_visinfo->depth, InputOutput, x_vis, mask, &attr); // Set window size hints SizeHints = XAllocSizeHints (); if (SizeHints) { SizeHints->flags = (PMinSize | PMaxSize); SizeHints->min_width = width; SizeHints->min_height = height; SizeHints->max_width = width; SizeHints->max_height = height; XSetWMNormalHints (x_disp, x_win, SizeHints); XFree (SizeHints); } // Set window title X11_SetCaption (va ("%s %s", PROGRAM, VERSION)); // Set icon name XSetIconName (x_disp, x_win, PROGRAM); // Set window class ClassHint = XAllocClassHint (); if (ClassHint) { resname = strrchr (com_argv[0], '/'); ClassHint->res_name = (resname ? resname + 1 : com_argv[0]); ClassHint->res_class = PACKAGE; XSetClassHint (x_disp, x_win, ClassHint); XFree (ClassHint); } // Make window respond to Delete events aWMDelete = XInternAtom (x_disp, "WM_DELETE_WINDOW", False); XSetWMProtocols (x_disp, x_win, &aWMDelete, 1); XMapWindow (x_disp, x_win); while (1) { XEvent ev; XMaskEvent (x_disp, StructureNotifyMask, &ev); if (ev.type == MapNotify) { X11_ProcessEventProxy (&ev); break; } X11_ProcessEventProxy (&ev); } vid_context_created = true; if (vid_fullscreen->int_val) { X11_UpdateFullscreen (vid_fullscreen); } XRaiseWindow (x_disp, x_win); } void X11_RestoreVidMode (void) { #ifdef HAVE_VIDMODE if (vidmode_active) { XF86VidModeSwitchToMode (x_disp, x_screen, vidmodes[original_mode]); XFree (vidmodes); vidmode_active = false; } #endif } void X11_GrabKeyboardBool(qboolean yes) { static qboolean is_grabbed = false; if (yes) { if (!is_grabbed) { if (XGrabKeyboard (x_disp, x_win, 1, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess) { is_grabbed = true; XSetInputFocus (x_disp, x_win, RevertToPointerRoot, CurrentTime); } } } else { XUngrabKeyboard (x_disp, CurrentTime); is_grabbed = false; } } void X11_UngrabKeyboard (void) { XUngrabKeyboard (x_disp, CurrentTime); } void X11_GrabMouseBool (qboolean yes) { static qboolean is_grabbed = false; if (yes) { if (!is_grabbed) { if (XGrabPointer (x_disp, x_win, True, MOUSE_MASK, GrabModeAsync, GrabModeAsync, x_win, None, CurrentTime) == GrabSuccess) { is_grabbed = true; } } return; } XUngrabPointer (x_disp, CurrentTime); is_grabbed = false; XWarpPointer (x_disp, x_win, x_win, 0, 0, 0, 0, vid.width / 2, vid.height / 2); } void X11_UngrabMouse(void) { XUngrabPointer (x_disp, CurrentTime); XWarpPointer (x_disp, x_win, x_win, 0, 0, 0, 0, vid.width / 2, vid.height / 2); } void X11_Grabber (qboolean grab) { if (!vid_context_created) { Con_Printf ("No video context to grab to!\n"); return; } X11_GrabMouseBool (grab); X11_GrabKeyboardBool (grab); XSync (x_disp, false); } void X11_SetCaption (const char *text) { if (x_disp && x_win && text) XStoreName (x_disp, x_win, text); } qboolean X11_GetWindowCoords (int *ax, int *ay) { #ifdef HAVE_VIDMODE Window theroot, scrap; int x, y; unsigned int width, height, bdwidth, depth; XSync (x_disp, false); if ((XGetGeometry (x_disp, x_win, &theroot, &x, &y, &width, &height, &bdwidth, &depth) == False)) { Con_Printf ("XGetWindowAttributes failed in X11_GetWindowCoords.\n"); return false; } else { XTranslateCoordinates (x_disp,x_win,theroot, -bdwidth, -bdwidth, ax, ay, &scrap); Con_DPrintf ("Window coords = %dx%d (%d,%d)\n", *ax, *ay, width, height); return true; } #endif return false; } void X11_ForceViewPort (void) { #ifdef HAVE_VIDMODE int ax, ay; if (!vidmode_avail || !vid_context_created) return; if (!X11_GetWindowCoords (&ax, &ay)) { // "icky kludge code" Con_Printf ("VID: Falling back on warp kludge to set viewport.\n"); XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, scr_width, scr_height); XWarpPointer (x_disp, None, x_win, 0, 0, 0, 0, 0, 0); } XF86VidModeSetViewPort (x_disp, x_screen, ax, ay); #endif } vec3_t * X11_GetGamma (void) { #ifdef HAVE_VIDMODE # ifdef X_XF86VidModeGetGamma XF86VidModeGamma xgamma; vec3_t *temp; if (vid_gamma_avail && vid_system_gamma->int_val) { if (XF86VidModeGetGamma (x_disp, x_screen, &xgamma)) { if ((temp = malloc (sizeof (vec3_t)))) { (*temp)[0] = xgamma.red; (*temp)[1] = xgamma.green; (*temp)[2] = xgamma.blue; return temp; } return NULL; } } # endif #endif vid_gamma_avail = false; return NULL; } qboolean X11_SetGamma (double gamma) { #ifdef HAVE_VIDMODE # ifdef X_XF86VidModeSetGamma XF86VidModeGamma xgamma; if (vid_gamma_avail && vid_system_gamma->int_val) { xgamma.red = xgamma.green = xgamma.blue = (float) gamma; if (XF86VidModeSetGamma (x_disp, x_screen, &xgamma)) return true; } # endif #endif return false; } void X11_RestoreGamma (void) { #ifdef HAVE_VIDMODE # ifdef X_XF86VidModeSetGamma XF86VidModeGamma xgamma; if (vid_gamma_avail && x_gamma[0] > 0) { xgamma.red = x_gamma[0]; xgamma.green = x_gamma[1]; xgamma.blue = x_gamma[2]; XF86VidModeSetGamma (x_disp, x_screen, &xgamma); } # endif #endif }