2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 //#include <termios.h>
21 //#include <sys/ioctl.h>
22 //#include <sys/stat.h>
31 #include <X11/Xutil.h>
34 #include <X11/keysym.h>
35 #include <X11/cursorfont.h>
37 #include <X11/extensions/XShm.h>
38 #if !defined(__APPLE__) && !defined(__MACH__)
39 #include <X11/extensions/xf86dga.h>
41 #include <X11/extensions/xf86vmode.h>
45 // Tell startup code that we have a client
46 int cl_available = true;
49 XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
50 GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
51 void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
52 Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
53 void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
54 const char *(GLAPIENTRY *qglXQueryExtensionsString)(Display *dpy, int screen);
56 //GLX_ARB_get_proc_address
57 void *(GLAPIENTRY *qglXGetProcAddressARB)(const GLubyte *procName);
59 static dllfunction_t getprocaddressfuncs[] =
61 {"glXGetProcAddressARB", (void **) &qglXGetProcAddressARB},
65 //GLX_SGI_swap_control
66 GLint (GLAPIENTRY *qglXSwapIntervalSGI)(GLint interval);
68 static dllfunction_t swapcontrolfuncs[] =
70 {"glXSwapIntervalSGI", (void **) &qglXSwapIntervalSGI},
74 static Display *vidx11_display = NULL;
75 static int vidx11_screen;
77 static GLXContext ctx = NULL;
79 Atom wm_delete_window_atom;
81 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
82 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
83 PointerMotionMask | ButtonMotionMask)
84 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | \
85 StructureNotifyMask | FocusChangeMask | EnterWindowMask | \
89 static qboolean mouse_avail = true;
90 static qboolean vid_usingmouse = false;
91 static qboolean vid_usingvsync = false;
92 static qboolean vid_usevsync = false;
93 static float mouse_x, mouse_y;
94 static int p_mouse_x, p_mouse_y;
97 cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
98 cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
101 qboolean vidmode_ext = false;
103 static int win_x, win_y;
105 static XF86VidModeModeInfo **vidmodes;
106 static int num_vidmodes;
107 static qboolean vid_isfullscreen = false;
109 static Visual *vidx11_visual;
110 static Colormap vidx11_colormap;
112 /*-----------------------------------------------------------------------*/
114 static int XLateKey(XKeyEvent *ev, char *ascii)
118 KeySym keysym, shifted;
120 keysym = XLookupKeysym (ev, 0);
121 XLookupString(ev, buf, sizeof buf, &shifted, 0);
126 case XK_KP_Page_Up: key = K_KP_PGUP; break;
127 case XK_Page_Up: key = K_PGUP; break;
129 case XK_KP_Page_Down: key = K_KP_PGDN; break;
130 case XK_Page_Down: key = K_PGDN; break;
132 case XK_KP_Home: key = K_KP_HOME; break;
133 case XK_Home: key = K_HOME; break;
135 case XK_KP_End: key = K_KP_END; break;
136 case XK_End: key = K_END; break;
138 case XK_KP_Left: key = K_KP_LEFTARROW; break;
139 case XK_Left: key = K_LEFTARROW; break;
141 case XK_KP_Right: key = K_KP_RIGHTARROW; break;
142 case XK_Right: key = K_RIGHTARROW; break;
144 case XK_KP_Down: key = K_KP_DOWNARROW; break;
145 case XK_Down: key = K_DOWNARROW; break;
147 case XK_KP_Up: key = K_KP_UPARROW; break;
148 case XK_Up: key = K_UPARROW; break;
150 case XK_Escape: key = K_ESCAPE; break;
152 case XK_KP_Enter: key = K_KP_ENTER; break;
153 case XK_Return: key = K_ENTER; break;
155 case XK_Tab: key = K_TAB; break;
157 case XK_F1: key = K_F1; break;
159 case XK_F2: key = K_F2; break;
161 case XK_F3: key = K_F3; break;
163 case XK_F4: key = K_F4; break;
165 case XK_F5: key = K_F5; break;
167 case XK_F6: key = K_F6; break;
169 case XK_F7: key = K_F7; break;
171 case XK_F8: key = K_F8; break;
173 case XK_F9: key = K_F9; break;
175 case XK_F10: key = K_F10; break;
177 case XK_F11: key = K_F11; break;
179 case XK_F12: key = K_F12; break;
181 case XK_BackSpace: key = K_BACKSPACE; break;
183 case XK_KP_Delete: key = K_KP_DEL; break;
184 case XK_Delete: key = K_DEL; break;
186 case XK_Pause: key = K_PAUSE; break;
189 case XK_Shift_R: key = K_SHIFT; break;
193 case XK_Control_R: key = K_CTRL; break;
198 case XK_Meta_R: key = K_ALT; break;
200 case XK_KP_Begin: key = K_KP_5; break;
202 case XK_Insert:key = K_INS; break;
203 case XK_KP_Insert: key = K_KP_INS; break;
205 case XK_KP_Multiply: key = '*'; break;
206 case XK_KP_Add: key = K_KP_PLUS; break;
207 case XK_KP_Subtract: key = K_KP_MINUS; break;
208 case XK_KP_Divide: key = K_KP_SLASH; break;
211 if (keysym < 32 && keysym > 126)
214 if (keysym >= 'A' && keysym <= 'Z')
215 key = keysym - 'A' + 'a';
225 static Cursor CreateNullCursor(Display *display, Window root)
233 cursormask = XCreatePixmap(display, root, 1, 1, 1);
234 xgc.function = GXclear;
235 gc = XCreateGC(display, cursormask, GCFunction, &xgc);
236 XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
237 dummycolour.pixel = 0;
239 dummycolour.flags = 04;
240 cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
241 XFreePixmap(display,cursormask);
246 static void IN_Activate (qboolean grab)
252 if (!vid_usingmouse && mouse_avail && win)
254 XWindowAttributes attribs_1;
255 XSetWindowAttributes attribs_2;
257 XGetWindowAttributes(vidx11_display, win, &attribs_1);
258 attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
259 XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
262 XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
264 XGrabPointer(vidx11_display, win, True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
269 int MajorVersion, MinorVersion;
271 if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
273 // unable to query, probably not supported
274 Con_Print( "Failed to detect XF86DGA Mouse\n" );
275 Cvar_SetValueQuick(&vid_dga, 0);
276 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
280 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
281 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
286 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
288 XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
290 mouse_x = mouse_y = 0;
291 cl_ignoremousemove = true;
292 vid_usingmouse = true;
301 XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
304 XUngrabPointer(vidx11_display, CurrentTime);
305 XUngrabKeyboard(vidx11_display, CurrentTime);
309 XUndefineCursor(vidx11_display, win);
311 cl_ignoremousemove = true;
312 vid_usingmouse = false;
317 static void HandleEvents(void)
322 qboolean dowarp = false;
327 while (XPending(vidx11_display))
329 XNextEvent(vidx11_display, &event);
335 key = XLateKey (&event.xkey, &ascii);
336 Key_Event(key, ascii, true);
341 key = XLateKey (&event.xkey, &ascii);
342 Key_Event(key, ascii, false);
350 if (vid_dga.integer == 1)
352 mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
353 mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
359 if (!event.xmotion.send_event)
361 mouse_x += event.xmotion.x - p_mouse_x;
362 mouse_y += event.xmotion.y - p_mouse_y;
363 if (abs(vid.width/2 - event.xmotion.x) > vid.width / 4 || abs(vid.height/2 - event.xmotion.y) > vid.height / 4)
366 p_mouse_x = event.xmotion.x;
367 p_mouse_y = event.xmotion.y;
371 // ui_mouseupdate(event.xmotion.x, event.xmotion.y);
375 // mouse button pressed
376 switch(event.xbutton.button)
379 Key_Event(K_MOUSE1, 0, true);
382 Key_Event(K_MOUSE3, 0, true);
385 Key_Event(K_MOUSE2, 0, true);
388 Key_Event(K_MWHEELUP, 0, true);
391 Key_Event(K_MWHEELDOWN, 0, true);
394 Key_Event(K_MOUSE4, 0, true);
397 Key_Event(K_MOUSE5, 0, true);
400 Key_Event(K_MOUSE6, 0, true);
403 Key_Event(K_MOUSE7, 0, true);
406 Key_Event(K_MOUSE8, 0, true);
409 Key_Event(K_MOUSE9, 0, true);
412 Key_Event(K_MOUSE10, 0, true);
415 Con_Printf("HandleEvents: ButtonPress gave value %d, 1-12 expected\n", event.xbutton.button);
421 // mouse button released
422 switch(event.xbutton.button)
425 Key_Event(K_MOUSE1, 0, false);
428 Key_Event(K_MOUSE3, 0, false);
431 Key_Event(K_MOUSE2, 0, false);
434 Key_Event(K_MWHEELUP, 0, false);
437 Key_Event(K_MWHEELDOWN, 0, false);
440 Key_Event(K_MOUSE4, 0, false);
443 Key_Event(K_MOUSE5, 0, false);
446 Key_Event(K_MOUSE6, 0, false);
449 Key_Event(K_MOUSE7, 0, false);
452 Key_Event(K_MOUSE8, 0, false);
455 Key_Event(K_MOUSE9, 0, false);
458 Key_Event(K_MOUSE10, 0, false);
461 Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-12 expected\n", event.xbutton.button);
468 win_x = event.xcreatewindow.x;
469 win_y = event.xcreatewindow.y;
472 case ConfigureNotify:
473 // window changed size/location
474 win_x = event.xconfigure.x;
475 win_y = event.xconfigure.y;
478 // window has been destroyed
482 // window manager messages
483 if ((event.xclient.format == 32) && ((unsigned int)event.xclient.data.l[0] == wm_delete_window_atom))
489 vid_activewindow = false;
490 VID_RestoreSystemGamma();
493 // window iconified/rolledup/whatever
495 vid_activewindow = false;
496 VID_RestoreSystemGamma();
499 // window is now the input focus
500 vid_activewindow = true;
503 // window is no longer the input focus
504 vid_activewindow = false;
505 VID_RestoreSystemGamma();
508 // mouse entered window
518 /* move the mouse to the window center again */
519 p_mouse_x = vid.width / 2;
520 p_mouse_y = vid.height / 2;
521 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
525 static void *prjobj = NULL;
527 static void GL_CloseLibrary(void)
533 qglXGetProcAddressARB = NULL;
536 gl_platformextensions = "";
539 static int GL_OpenLibrary(const char *name)
541 Con_Printf("Loading OpenGL driver %s\n", name);
543 if (!(prjobj = dlopen(name, RTLD_LAZY)))
545 Con_Printf("Unable to open symbol list for %s\n", name);
548 strcpy(gl_driver, name);
552 void *GL_GetProcAddress(const char *name)
555 if (qglXGetProcAddressARB != NULL)
556 p = (void *) qglXGetProcAddressARB(name);
558 p = (void *) dlsym(prjobj, name);
562 void VID_Shutdown(void)
564 if (!ctx || !vidx11_display)
570 VID_RestoreSystemGamma();
572 // FIXME: glXDestroyContext here?
573 if (vid_isfullscreen)
574 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[0]);
576 XDestroyWindow(vidx11_display, win);
577 XCloseDisplay(vidx11_display);
580 vid_isfullscreen = false;
581 vidx11_display = NULL;
589 void signal_handler(int sig)
591 Con_Printf("Received signal %d, exiting...\n", sig);
592 VID_RestoreSystemGamma();
599 signal(SIGHUP, signal_handler);
600 signal(SIGINT, signal_handler);
601 signal(SIGQUIT, signal_handler);
602 signal(SIGILL, signal_handler);
603 signal(SIGTRAP, signal_handler);
604 signal(SIGIOT, signal_handler);
605 signal(SIGBUS, signal_handler);
606 signal(SIGFPE, signal_handler);
607 signal(SIGSEGV, signal_handler);
608 signal(SIGTERM, signal_handler);
611 void VID_Finish (void)
613 qboolean vid_usemouse;
615 vid_usevsync = vid_vsync.integer && !cls.timedemo && gl_videosyncavailable;
616 if (vid_usingvsync != vid_usevsync && gl_videosyncavailable)
618 vid_usingvsync = vid_usevsync;
619 if (qglXSwapIntervalSGI (vid_usevsync))
620 Con_Print("glXSwapIntervalSGI didn't accept the vid_vsync change, it will take effect on next vid_restart (GLX_SGI_swap_control does not allow turning off vsync)\n");
623 // handle the mouse state when windowed if that's changed
624 vid_usemouse = false;
625 if (vid_mouse.integer && !key_consoleactive && !cls.demoplayback)
627 if (!vid_activewindow)
628 vid_usemouse = false;
629 if (vid_isfullscreen)
631 IN_Activate(vid_usemouse);
633 if (r_render.integer)
635 if (r_speeds.integer || gl_finish.integer)
637 qglXSwapBuffers(vidx11_display, win);
641 int VID_SetGamma(unsigned short *ramps)
643 return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
646 int VID_GetGamma(unsigned short *ramps)
648 return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, 256, ramps, ramps + 256, ramps + 512);
654 Cvar_RegisterVariable (&vid_dga);
655 Cvar_RegisterVariable (&vid_dga_mouseaccel);
657 InitSig(); // trap evil signals
658 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
659 if (COM_CheckParm ("-nomouse") || COM_CheckParm("-safe"))
663 void VID_BuildGLXAttrib(int *attrib, int stencil)
665 *attrib++ = GLX_RGBA;
666 *attrib++ = GLX_RED_SIZE;*attrib++ = 1;
667 *attrib++ = GLX_GREEN_SIZE;*attrib++ = 1;
668 *attrib++ = GLX_BLUE_SIZE;*attrib++ = 1;
669 *attrib++ = GLX_DOUBLEBUFFER;
670 *attrib++ = GLX_DEPTH_SIZE;*attrib++ = 1;
671 // if stencil is enabled, ask for alpha too
674 *attrib++ = GLX_STENCIL_SIZE;*attrib++ = 8;
675 *attrib++ = GLX_ALPHA_SIZE;*attrib++ = 1;
680 int VID_InitMode(int fullscreen, int width, int height, int bpp)
684 XSetWindowAttributes attr;
687 XVisualInfo *visinfo;
688 int MajorVersion, MinorVersion;
689 const char *drivername;
691 #if defined(__APPLE__) && defined(__MACH__)
692 drivername = "/usr/X11R6/lib/libGL.1.dylib";
694 drivername = "libGL.so.1";
696 // COMMANDLINEOPTION: Linux GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
697 // COMMANDLINEOPTION: BSD GLX: -gl_driver <drivername> selects a GL driver library, default is libGL.so.1, useful only for using fxmesa or similar, if you don't know what this is for, you don't need it
698 // LordHavoc: although this works on MacOSX, it's useless there (as there is only one system libGL)
699 i = COM_CheckParm("-gl_driver");
700 if (i && i < com_argc - 1)
701 drivername = com_argv[i + 1];
702 if (!GL_OpenLibrary(drivername))
704 Con_Printf("Unable to load GL driver \"%s\"\n", drivername);
708 if (!(vidx11_display = XOpenDisplay(NULL)))
710 Con_Print("Couldn't open the X display\n");
714 vidx11_screen = DefaultScreen(vidx11_display);
715 root = RootWindow(vidx11_display, vidx11_screen);
717 // Get video mode list
718 MajorVersion = MinorVersion = 0;
719 if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
723 Con_DPrintf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
727 if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
728 || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
729 || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
730 || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL
731 || (qglXQueryExtensionsString = GL_GetProcAddress("glXQueryExtensionsString")) == NULL)
733 Con_Printf("glX functions not found in %s\n", gl_driver);
737 VID_BuildGLXAttrib(attrib, bpp == 32);
738 visinfo = qglXChooseVisual(vidx11_display, vidx11_screen, attrib);
741 Con_Print("Couldn't get an RGB, Double-buffered, Depth visual\n");
747 int best_fit, best_dist, dist, x, y;
749 // Are we going fullscreen? If so, let's change video mode
752 XF86VidModeGetAllModeLines(vidx11_display, vidx11_screen, &num_vidmodes, &vidmodes);
756 for (i = 0; i < num_vidmodes; i++)
758 if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
761 x = width - vidmodes[i]->hdisplay;
762 y = height - vidmodes[i]->vdisplay;
763 dist = (x * x) + (y * y);
764 if (dist < best_dist)
773 // LordHavoc: changed from ActualWidth/ActualHeight =,
774 // to width/height =, so the window will take the full area of
776 width = vidmodes[best_fit]->hdisplay;
777 height = vidmodes[best_fit]->vdisplay;
779 // change to the mode
780 XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, vidmodes[best_fit]);
781 vid_isfullscreen = true;
783 // Move the viewport to top left
784 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
791 // LordHavoc: save the visual for use in gamma ramp settings later
792 vidx11_visual = visinfo->visual;
794 /* window attributes */
795 attr.background_pixel = 0;
796 attr.border_pixel = 0;
797 // LordHavoc: save the colormap for later, too
798 vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
799 attr.event_mask = X_MASK;
800 if (vid_isfullscreen)
802 mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
803 attr.override_redirect = True;
804 attr.backing_store = NotUseful;
805 attr.save_under = False;
808 mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
810 win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
811 XStoreName(vidx11_display, win, gamename);
812 XMapWindow(vidx11_display, win);
814 // LordHavoc: making the close button on a window do the right thing
815 // seems to involve this mess, sigh...
816 wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
817 XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
819 if (vid_isfullscreen)
821 XMoveWindow(vidx11_display, win, 0, 0);
822 XRaiseWindow(vidx11_display, win);
823 XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
824 XFlush(vidx11_display);
825 // Move the viewport to top left
826 XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
829 //XSync(vidx11_display, False);
831 ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
833 Sys_Error ("glXCreateContext failed\n");
835 if (!qglXMakeCurrent(vidx11_display, win, ctx))
836 Sys_Error ("glXMakeCurrent failed\n");
838 XSync(vidx11_display, False);
840 if ((qglGetString = GL_GetProcAddress("glGetString")) == NULL)
841 Sys_Error("glGetString not found in %s", gl_driver);
843 gl_renderer = qglGetString(GL_RENDERER);
844 gl_vendor = qglGetString(GL_VENDOR);
845 gl_version = qglGetString(GL_VERSION);
846 gl_extensions = qglGetString(GL_EXTENSIONS);
848 gl_platformextensions = qglXQueryExtensionsString(vidx11_display, vidx11_screen);
850 gl_videosyncavailable = false;
852 // COMMANDLINEOPTION: Linux GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
853 // COMMANDLINEOPTION: BSD GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
854 // COMMANDLINEOPTION: MacOSX GLX: -nogetprocaddress disables GLX_ARB_get_proc_address (not required, more formal method of getting extension functions)
855 GL_CheckExtension("GLX_ARB_get_proc_address", getprocaddressfuncs, "-nogetprocaddress", false);
856 // COMMANDLINEOPTION: Linux GLX: -novideosync disables GLX_SGI_swap_control
857 // COMMANDLINEOPTION: BSD GLX: -novideosync disables GLX_SGI_swap_control
858 // COMMANDLINEOPTION: MacOSX GLX: -novideosync disables GLX_SGI_swap_control
859 gl_videosyncavailable = GL_CheckExtension("GLX_SGI_swap_control", swapcontrolfuncs, "-novideosync", false);
861 vid_usingmouse = false;
862 vid_usingvsync = false;
864 vid_activewindow = true;
869 void Sys_SendKeyEvents(void)
878 in_mouse_x = mouse_x;
879 in_mouse_y = mouse_y;