]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - vid_glx.c
Remove v_glslgamma cvar (now assumed to be 1) and corresponding code like R_DrawGamma.
[xonotic/darkplaces.git] / vid_glx.c
index 193b32c97e54368b09b580beabe0711c590a255b..4c5c9c9d02f6b5b852b5dce49712289cd66a015d 100644 (file)
--- a/vid_glx.c
+++ b/vid_glx.c
@@ -17,6 +17,10 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
+#if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
+//#define USEDGA
+#endif
+
 #include <signal.h>
 
 #include <dlfcn.h>
@@ -35,11 +39,15 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <X11/xpm.h>
 
 #include <X11/extensions/XShm.h>
-#if !defined(__APPLE__) && !defined(__MACH__) && !defined(SUNOS)
+#ifdef USEDGA
 #include <X11/extensions/xf86dga.h>
 #endif
 #include <X11/extensions/xf86vmode.h>
 
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <X11/extensions/XShm.h>
+
 // get the Uchar type
 #include "utf8lib.h"
 #include "image.h"
@@ -84,7 +92,11 @@ static int vidx11_screen;
 static Window win, root;
 static GLXContext ctx = NULL;
 static GC vidx11_gc = NULL;
-static XImage *vidx11_ximage = NULL;
+static XImage *vidx11_ximage[2] = { NULL, NULL };
+static int vidx11_ximage_pos = 0;
+static XShmSegmentInfo vidx11_shminfo[2];
+static int vidx11_shmevent = -1;
+static int vidx11_shmwait = 0; // number of frames outstanding
 
 Atom wm_delete_window_atom;
 Atom net_wm_state_atom;
@@ -107,15 +119,14 @@ static qboolean vid_usingmouse = false;
 static qboolean vid_usinghidecursor = false;
 static qboolean vid_usingvsync = false;
 static qboolean vid_usevsync = false;
-static qboolean vid_x11_hardwaregammasupported = false;
+#ifdef USEDGA
 static qboolean vid_x11_dgasupported = false;
-static int vid_x11_gammarampsize = 0;
+#endif
 
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
 cvar_t vid_dgamouse = {CVAR_SAVE, "vid_dgamouse", "0", "make use of DGA mouse input"};
 static qboolean vid_usingdgamouse = false;
 #endif
-cvar_t vid_netwmfullscreen = {CVAR_SAVE, "vid_netwmfullscreen", "0", "make use _NET_WM_STATE_FULLSCREEN; turn this off if fullscreen does not work for you"};
 
 qboolean vidmode_ext = false;
 
@@ -124,17 +135,18 @@ static int win_x, win_y;
 static XF86VidModeModeInfo init_vidmode, game_vidmode;
 static qboolean vid_isfullscreen = false;
 static qboolean vid_isvidmodefullscreen = false;
-static qboolean vid_isnetwmfullscreen = false;
+static qboolean vid_isdesktopfullscreen = false;
 static qboolean vid_isoverrideredirect = false;
 
+static vid_mode_t desktop_mode;
 static Visual *vidx11_visual;
 static Colormap vidx11_colormap;
 
 /*-----------------------------------------------------------------------*/
 //
 
-long keysym2ucs(KeySym keysym);
-void DP_Xutf8LookupString(XKeyEvent * ev,
+extern long keysym2ucs(KeySym keysym); // LordHavoc: suppress warning just in this case, it's not worth having a header file for this...
+static void DP_Xutf8LookupString(XKeyEvent * ev,
                         Uchar *uch,
                         KeySym * keysym_return,
                         Status * status_return)
@@ -270,7 +282,13 @@ static int XLateKey(XKeyEvent *ev, Uchar *ascii)
                case XK_KP_Subtract: key = K_KP_MINUS; break;
                case XK_KP_Divide: key = K_KP_SLASH; break;
 
-               case XK_section:        key = '~'; break;
+               case XK_Num_Lock: key = K_NUMLOCK; break;
+               case XK_Caps_Lock: key = K_CAPSLOCK; break;
+               case XK_Scroll_Lock: key = K_SCROLLOCK; break;
+
+               case XK_asciicircum:    *ascii = key = '^'; break; // for some reason, XLookupString returns "" on this one for Grunt|2
+
+               case XK_section:        *ascii = key = '~'; break;
 
                default:
                        if (keysym < 32)
@@ -315,7 +333,7 @@ void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecurso
        static int originalmouseparms_threshold;
        static qboolean restore_spi;
 
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
        qboolean usedgamouse;
 #endif
 
@@ -328,7 +346,7 @@ void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecurso
        if (!mouse_avail)
                fullscreengrab = relative = hidecursor = false;
 
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
        usedgamouse = relative && vid_dgamouse.integer;
        if (!vid_x11_dgasupported)
                usedgamouse = false;
@@ -364,7 +382,7 @@ void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecurso
                        attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
                        XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
                        vid_usingdgamouse = usedgamouse;
                        if (usedgamouse)
                        {
@@ -376,7 +394,7 @@ void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecurso
                                XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, vid.width / 2, vid.height / 2);
 
 // COMMANDLINEOPTION: X11 Input: -noforcemparms disables setting of mouse parameters (not used with DGA, windows only)
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
                        if (!COM_CheckParm ("-noforcemparms") && !usedgamouse)
 #else
                        if (!COM_CheckParm ("-noforcemparms"))
@@ -397,7 +415,7 @@ void VID_SetMouse(qboolean fullscreengrab, qboolean relative, qboolean hidecurso
        {
                if (vid_usingmouse)
                {
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
                        if (vid_usingdgamouse)
                                XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
                        vid_usingdgamouse = false;
@@ -444,6 +462,114 @@ static keynum_t buttonremap[18] =
        K_MOUSE16,
 };
 
+static qboolean BuildXImages(int w, int h)
+{
+       int i;
+       if(DefaultDepth(vidx11_display, vidx11_screen) != 32 && DefaultDepth(vidx11_display, vidx11_screen) != 24)
+       {
+               Con_Printf("Sorry, we only support 24bpp and 32bpp modes\n");
+               VID_Shutdown();
+               return false;
+       }
+       // match to dpsoftrast's specs
+       if(vidx11_visual->red_mask != 0x00FF0000)
+       {
+               Con_Printf("Sorry, we only support BGR visuals\n");
+               VID_Shutdown();
+               return false;
+       }
+       if(vidx11_visual->green_mask != 0x0000FF00)
+       {
+               Con_Printf("Sorry, we only support BGR visuals\n");
+               VID_Shutdown();
+               return false;
+       }
+       if(vidx11_visual->blue_mask != 0x000000FF)
+       {
+               Con_Printf("Sorry, we only support BGR visuals\n");
+               VID_Shutdown();
+               return false;
+       }
+       if(vidx11_shmevent >= 0)
+       {
+               for(i = 0; i < 2; ++i)
+               {
+                       vidx11_shminfo[i].shmid = -1;
+                       vidx11_ximage[i] = XShmCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, NULL, &vidx11_shminfo[i], w, h);
+                       if(!vidx11_ximage[i])
+                       {
+                               Con_Printf("Failed to get an XImage segment\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+                       if(vidx11_ximage[i]->bytes_per_line != w * 4)
+                       {
+                               Con_Printf("Sorry, we only support linear pixel layout\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+                       vidx11_shminfo[i].shmid = shmget(IPC_PRIVATE, vidx11_ximage[i]->bytes_per_line * vidx11_ximage[i]->height, IPC_CREAT|0777);
+                       if(vidx11_shminfo[i].shmid < 0)
+                       {
+                               Con_Printf("Failed to get a shm segment\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+                       vidx11_shminfo[i].shmaddr = vidx11_ximage[i]->data = shmat(vidx11_shminfo[i].shmid, NULL, 0);
+                       if(!vidx11_shminfo[i].shmaddr)
+                       {
+                               Con_Printf("Failed to get a shm segment addresst\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+                       vidx11_shminfo[i].readOnly = True;
+                       XShmAttach(vidx11_display, &vidx11_shminfo[i]);
+               }
+       }
+       else
+       {
+               for(i = 0; i < 1; ++i) // we only need one buffer if we don't use Xshm
+               {
+                       char *p = calloc(4, w * h);
+                       vidx11_shminfo[i].shmid = -1;
+                       vidx11_ximage[i] = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)p, w, h, 8, 0);
+                       if(!vidx11_ximage[i])
+                       {
+                               Con_Printf("Failed to get an XImage segment\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+                       if(vidx11_ximage[i]->bytes_per_line != w * 4)
+                       {
+                               Con_Printf("Sorry, we only support linear pixel layout\n");
+                               VID_Shutdown();
+                               return false;
+                       }
+               }
+       }
+       return true;
+}
+static void DestroyXImages(void)
+{
+       int i;
+       for(i = 0; i < 2; ++i)
+       {
+               if(vidx11_shminfo[i].shmid >= 0)
+               {
+                       XShmDetach(vidx11_display, &vidx11_shminfo[i]);
+                       XDestroyImage(vidx11_ximage[i]);
+                       vidx11_ximage[i] = NULL;
+                       shmdt(vidx11_shminfo[i].shmaddr);
+                       shmctl(vidx11_shminfo[i].shmid, IPC_RMID, 0);
+                       vidx11_shminfo[i].shmid = -1;
+               }
+               if(vidx11_ximage[i])
+                       XDestroyImage(vidx11_ximage[i]);
+               vidx11_ximage[i] = 0;
+       }
+}
+
+static int in_mouse_x_save = 0, in_mouse_y_save = 0;
 static void HandleEvents(void)
 {
        XEvent event;
@@ -454,6 +580,11 @@ static void HandleEvents(void)
        if (!vidx11_display)
                return;
 
+       in_mouse_x += in_mouse_x_save;
+       in_mouse_y += in_mouse_y_save;
+       in_mouse_x_save = 0;
+       in_mouse_y_save = 0;
+
        while (XPending(vidx11_display))
        {
                XNextEvent(vidx11_display, &event);
@@ -476,7 +607,7 @@ static void HandleEvents(void)
                        // mouse moved
                        if (vid_usingmouse)
                        {
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
                                if (vid_usingdgamouse)
                                {
                                        in_mouse_x += event.xmotion.x_root;
@@ -525,25 +656,36 @@ static void HandleEvents(void)
                        // window changed size/location
                        win_x = event.xconfigure.x;
                        win_y = event.xconfigure.y;
-                       if(vid_resizable.integer < 2 || vid_isnetwmfullscreen)
+                       // HACK on X11, we just request fullscreen mode, but
+                       // cannot guess what the window manager will do for us
+                       // exactly. That is why we read back the resolution we
+                       // actually got here.
+                       if(vid_isdesktopfullscreen)
+                       {
+                               desktop_mode.width = event.xconfigure.width;
+                               desktop_mode.height = event.xconfigure.height;
+                       }
+                       if((vid_resizable.integer < 2 || vid_isdesktopfullscreen) && (vid.width != event.xconfigure.width || vid.height != event.xconfigure.height))
                        {
                                vid.width = event.xconfigure.width;
                                vid.height = event.xconfigure.height;
-                               if(vid_isnetwmfullscreen)
+                               if(vid_isdesktopfullscreen)
                                        Con_Printf("NetWM fullscreen: actually using resolution %dx%d\n", vid.width, vid.height);
                                else
                                        Con_DPrintf("Updating to ConfigureNotify resolution %dx%d\n", vid.width, vid.height);
 
-                               if (vidx11_ximage)
+                               if(vid.renderpath == RENDERPATH_SOFT)
                                {
-                                       XDestroyImage(vidx11_ximage);
+                                       DPSOFTRAST_Flush();
                                        if(vid.softdepthpixels)
                                                free(vid.softdepthpixels);
-                                       vid.softpixels = (unsigned int *)calloc(1, vid.width * vid.height * 4);
-                                       vid.softdepthpixels = (unsigned int *)calloc(1, vid.width * vid.height * 4);
-                                       vidx11_ximage = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)vid.softpixels, vid.width, vid.height, 8, 0);
-
-                                       // FIXME inform softrast!
+                                       DestroyXImages();
+                                       XSync(vidx11_display, False);
+                                       if(!BuildXImages(vid.width, vid.height))
+                                               return;
+                                       XSync(vidx11_display, False);
+                                       vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
+                                       vid.softdepthpixels = (unsigned int *)calloc(4, vid.width * vid.height);
                                }
                        }
                        break;
@@ -561,7 +703,6 @@ static void HandleEvents(void)
                                break;
                        // window restored
                        vid_hidden = false;
-                       VID_RestoreSystemGamma();
 
                        if(vid_isvidmodefullscreen)
                        {
@@ -572,7 +713,7 @@ static void HandleEvents(void)
                                XF86VidModeSetViewPort(vidx11_display, vidx11_screen, 0, 0);
                        }
 
-                       if(vid_isnetwmfullscreen)
+                       if(vid_isdesktopfullscreen)
                        {
                                // make sure it's fullscreen
                                XEvent event;
@@ -598,7 +739,6 @@ static void HandleEvents(void)
                                break;
                        // window iconified/rolledup/whatever
                        vid_hidden = true;
-                       VID_RestoreSystemGamma();
 
                        if(vid_isvidmodefullscreen)
                                XF86VidModeSwitchToMode(vidx11_display, vidx11_screen, &init_vidmode);
@@ -614,7 +754,7 @@ static void HandleEvents(void)
                        if (vid_isoverrideredirect)
                                break;
 
-                       if(vid_isnetwmfullscreen && event.xfocus.mode == NotifyNormal)
+                       if(vid_isdesktopfullscreen && event.xfocus.mode == NotifyNormal)
                        {
                                // iconify netwm fullscreen window when it loses focus
                                // when the user selects it in the taskbar, the window manager will map it again and send MapNotify
@@ -635,7 +775,6 @@ static void HandleEvents(void)
 
                        // window is no longer the input focus
                        vid_activewindow = false;
-                       VID_RestoreSystemGamma();
 
                        break;
                case EnterNotify:
@@ -644,6 +783,10 @@ static void HandleEvents(void)
                case LeaveNotify:
                        // mouse left window
                        break;
+               default:
+                       if(vidx11_shmevent >= 0 && event.type == vidx11_shmevent)
+                               --vidx11_shmwait;
+                       break;
                }
        }
 
@@ -702,11 +845,11 @@ void *GL_GetProcAddress(const char *name)
 
 void VID_Shutdown(void)
 {
-       if (!ctx || !vidx11_display)
+       if (!vidx11_display)
                return;
 
+       VID_EnableJoystick(false);
        VID_SetMouse(false, false, false);
-       VID_RestoreSystemGamma();
 
        // FIXME: glXDestroyContext here?
        if (vid_isvidmodefullscreen)
@@ -716,13 +859,13 @@ void VID_Shutdown(void)
                XFreeGC(vidx11_display, vidx11_gc);
        vidx11_gc = NULL;
 
-       if(vidx11_ximage)
-               XDestroyImage(vidx11_ximage);
-       vidx11_ximage = 0;
+       DestroyXImages();
+       vidx11_shmevent = -1;
        vid.softpixels = NULL;
 
        if (vid.softdepthpixels)
                free(vid.softdepthpixels);
+       vid.softdepthpixels = NULL;
 
        if (win)
                XDestroyWindow(vidx11_display, win);
@@ -730,7 +873,7 @@ void VID_Shutdown(void)
 
        vid_hidden = true;
        vid_isfullscreen = false;
-       vid_isnetwmfullscreen = false;
+       vid_isdesktopfullscreen = false;
        vid_isvidmodefullscreen = false;
        vid_isoverrideredirect = false;
        vidx11_display = NULL;
@@ -738,17 +881,15 @@ void VID_Shutdown(void)
        ctx = NULL;
 
        GL_CloseLibrary();
-       Key_ClearStates ();
 }
 
-void signal_handler(int sig)
+static void signal_handler(int sig)
 {
        Con_Printf("Received signal %d, exiting...\n", sig);
-       VID_RestoreSystemGamma();
        Sys_Quit(1);
 }
 
-void InitSig(void)
+static void InitSig(void)
 {
        signal(SIGHUP, signal_handler);
        signal(SIGINT, signal_handler);
@@ -768,17 +909,39 @@ void VID_Finish (void)
        switch(vid.renderpath)
        {
                case RENDERPATH_SOFT:
-                       XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage, 0, 0, 0, 0, vid.width, vid.height);
+                       if(vidx11_shmevent >= 0) {
+                               vidx11_ximage_pos = !vidx11_ximage_pos;
+                               vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
+                               DPSOFTRAST_SetRenderTargets(vid.width, vid.height, vid.softdepthpixels, vid.softpixels, NULL, NULL, NULL);
+
+                               ++vidx11_shmwait;
+                               XShmPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[!vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height, True);
+
+                               // save mouse motion so we can deal with it later
+                               in_mouse_x = 0;
+                               in_mouse_y = 0;
+                               while(vidx11_shmwait > 1)
+                                       HandleEvents();
+                               in_mouse_x_save += in_mouse_x;
+                               in_mouse_y_save += in_mouse_y;
+                               in_mouse_x = 0;
+                               in_mouse_y = 0;
+                       } else {
+                               // no buffer switching here, we just flush the renderer
+                               DPSOFTRAST_Finish();
+                               XPutImage(vidx11_display, win, vidx11_gc, vidx11_ximage[vidx11_ximage_pos], 0, 0, 0, 0, vid.width, vid.height);
+                       }
                        break;
 
                case RENDERPATH_GL11:
                case RENDERPATH_GL13:
                case RENDERPATH_GL20:
+               case RENDERPATH_GLES1:
                case RENDERPATH_GLES2:
                        if (vid_usingvsync != vid_usevsync)
                        {
                                vid_usingvsync = vid_usevsync;
-                               if (qglXSwapIntervalSGI (vid_usevsync))
+                               if (qglXSwapIntervalSGI && qglXSwapIntervalSGI (vid_usevsync))
                                        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");
                        }
 
@@ -797,33 +960,24 @@ void VID_Finish (void)
                        break;
        }
 
-       if (vid_x11_hardwaregammasupported)
-               VID_UpdateGamma(false, vid_x11_gammarampsize);
-}
-
-int VID_SetGamma(unsigned short *ramps, int rampsize)
-{
-       return XF86VidModeSetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
-}
-
-int VID_GetGamma(unsigned short *ramps, int rampsize)
-{
-       return XF86VidModeGetGammaRamp(vidx11_display, vidx11_screen, rampsize, ramps, ramps + rampsize, ramps + rampsize*2);
+       VID_UpdateGamma();
 }
 
 void VID_Init(void)
 {
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
        Cvar_RegisterVariable (&vid_dgamouse);
 #endif
-       Cvar_RegisterVariable (&vid_netwmfullscreen);
+       Cvar_RegisterVariable (&vid_desktopfullscreen);
        InitSig(); // trap evil signals
 // COMMANDLINEOPTION: Input: -nomouse disables mouse support (see also vid_mouse cvar)
        if (COM_CheckParm ("-nomouse"))
                mouse_avail = false;
+       vidx11_shminfo[0].shmid = -1;
+       vidx11_shminfo[1].shmid = -1;
 }
 
-void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
+static void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, int samples)
 {
        *attrib++ = GLX_RGBA;
        *attrib++ = GLX_RED_SIZE;*attrib++ = stencil ? 8 : 5;
@@ -849,7 +1003,7 @@ void VID_BuildGLXAttrib(int *attrib, qboolean stencil, qboolean stereobuffer, in
        *attrib++ = None;
 }
 
-qboolean VID_InitModeSoft(viddef_mode_t *mode)
+static qboolean VID_InitModeSoft(viddef_mode_t *mode)
 {
        int i, j;
        XSetWindowAttributes attr;
@@ -862,9 +1016,11 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
        char **idata;
        unsigned char *data;
        XGCValues gcval;
+       const char *dpyname;
+       char vabuf[1024];
 
        vid_isfullscreen = false;
-       vid_isnetwmfullscreen = false;
+       vid_isdesktopfullscreen = false;
        vid_isvidmodefullscreen = false;
        vid_isoverrideredirect = false;
 
@@ -873,6 +1029,7 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
                Con_Print("Couldn't open the X display\n");
                return false;
        }
+       dpyname = XDisplayName(NULL);
 
        // LordHavoc: making the close button on a window do the right thing
        // seems to involve this mess, sigh...
@@ -889,6 +1046,13 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
        vidx11_screen = DefaultScreen(vidx11_display);
        root = RootWindow(vidx11_display, vidx11_screen);
 
+       desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
+       desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
+       desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
+       desktop_mode.refreshrate = 60; // FIXME
+       desktop_mode.pixelheight_num = 1; // FIXME
+       desktop_mode.pixelheight_denom = 1; // FIXME
+
        // Get video mode list
        MajorVersion = MinorVersion = 0;
        if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
@@ -901,10 +1065,10 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
 
        if (mode->fullscreen)
        {
-               if(vid_netwmfullscreen.integer)
+               if(vid_desktopfullscreen.integer)
                {
                        // TODO detect WM support
-                       vid_isnetwmfullscreen = true;
+                       vid_isdesktopfullscreen = true;
                        vid_isfullscreen = true;
                        // width and height will be filled in later
                        Con_DPrintf("Using NetWM fullscreen mode\n");
@@ -988,7 +1152,7 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
 
        if (mode->fullscreen)
        {
-               if(vid_isnetwmfullscreen)
+               if(vid_isdesktopfullscreen)
                {
                        mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
                        attr.backing_store = NotUseful;
@@ -1034,7 +1198,7 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
                        }
                        ++i;
                        Mem_Free(data);
-                       data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
+                       data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
                }
                XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
        }
@@ -1061,7 +1225,7 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
        clshints->res_class = strdup("DarkPlaces");
 
        szhints = XAllocSizeHints();
-       if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
+       if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
        {
                szhints->min_width = szhints->max_width = mode->width;
                szhints->min_height = szhints->max_height = mode->height;
@@ -1097,16 +1261,24 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
 
        //XSync(vidx11_display, False);
 
-       // TODO XShm
-       vid.softpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
-       vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
-       vidx11_ximage = XCreateImage(vidx11_display, vidx11_visual, DefaultDepth(vidx11_display, vidx11_screen), ZPixmap, 0, (char*)vid.softpixels, mode->width, mode->height, 8, 0);
-       if(!vidx11_ximage)
+       // COMMANDLINEOPTION: Unix GLX: -noshm disables XShm extensioon
+       if(dpyname && dpyname[0] == ':' && dpyname[1] && (dpyname[2] < '0' || dpyname[2] > '9') && !COM_CheckParm("-noshm") && XShmQueryExtension(vidx11_display))
        {
-               Con_Printf("Failed to initialize an XImage\n");
-               VID_Shutdown();
-               return false;
+               Con_Printf("Using XShm\n");
+               vidx11_shmevent = XShmGetEventBase(vidx11_display) + ShmCompletion;
        }
+       else
+       {
+               Con_Printf("Not using XShm\n");
+               vidx11_shmevent = -1;
+       }
+       BuildXImages(mode->width, mode->height);
+
+       vidx11_ximage_pos = 0;
+       vid.softpixels = (unsigned int *) vidx11_ximage[vidx11_ximage_pos]->data;
+       vidx11_shmwait = 0;
+       vid.softdepthpixels = (unsigned int *)calloc(1, mode->width * mode->height * 4);
+
        memset(&gcval, 0, sizeof(gcval));
        vidx11_gc = XCreateGC(vidx11_display, win, 0, &gcval);
 
@@ -1125,8 +1297,7 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
        vid_usingvsync = false;
        vid_hidden = false;
        vid_activewindow = true;
-       vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
        vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
        if (!vid_x11_dgasupported)
                Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
@@ -1136,7 +1307,8 @@ qboolean VID_InitModeSoft(viddef_mode_t *mode)
 
        return true;
 }
-qboolean VID_InitModeGL(viddef_mode_t *mode)
+
+static qboolean VID_InitModeGL(viddef_mode_t *mode)
 {
        int i, j;
        int attrib[32];
@@ -1151,9 +1323,10 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
        char *xpm;
        char **idata;
        unsigned char *data;
+       char vabuf[1024];
 
        vid_isfullscreen = false;
-       vid_isnetwmfullscreen = false;
+       vid_isdesktopfullscreen = false;
        vid_isvidmodefullscreen = false;
        vid_isoverrideredirect = false;
 
@@ -1195,6 +1368,13 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
        vidx11_screen = DefaultScreen(vidx11_display);
        root = RootWindow(vidx11_display, vidx11_screen);
 
+       desktop_mode.width = DisplayWidth(vidx11_display, vidx11_screen);
+       desktop_mode.height = DisplayHeight(vidx11_display, vidx11_screen);
+       desktop_mode.bpp = DefaultDepth(vidx11_display, vidx11_screen);
+       desktop_mode.refreshrate = 60; // FIXME
+       desktop_mode.pixelheight_num = 1; // FIXME
+       desktop_mode.pixelheight_denom = 1; // FIXME
+
        // Get video mode list
        MajorVersion = MinorVersion = 0;
        if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
@@ -1226,10 +1406,10 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
 
        if (mode->fullscreen)
        {
-               if(vid_netwmfullscreen.integer)
+               if(vid_desktopfullscreen.integer)
                {
                        // TODO detect WM support
-                       vid_isnetwmfullscreen = true;
+                       vid_isdesktopfullscreen = true;
                        vid_isfullscreen = true;
                        // width and height will be filled in later
                        Con_DPrintf("Using NetWM fullscreen mode\n");
@@ -1313,7 +1493,7 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
 
        if (mode->fullscreen)
        {
-               if(vid_isnetwmfullscreen)
+               if(vid_isdesktopfullscreen)
                {
                        mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask;
                        attr.backing_store = NotUseful;
@@ -1359,7 +1539,7 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
                        }
                        ++i;
                        Mem_Free(data);
-                       data = loadimagepixelsbgra(va("darkplaces-icon%d", i), false, false, false, NULL);
+                       data = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "darkplaces-icon%d", i), false, false, false, NULL);
                }
                XChangeProperty(vidx11_display, win, net_wm_icon, cardinal, 32, PropModeReplace, (const unsigned char *) netwm_icon, pos);
        }
@@ -1386,7 +1566,7 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
        clshints->res_class = strdup("DarkPlaces");
 
        szhints = XAllocSizeHints();
-       if(vid_resizable.integer == 0 && !vid_isnetwmfullscreen)
+       if(vid_resizable.integer == 0 && !vid_isdesktopfullscreen)
        {
                szhints->min_width = szhints->max_width = mode->width;
                szhints->min_height = szhints->max_height = mode->height;
@@ -1463,8 +1643,7 @@ qboolean VID_InitModeGL(viddef_mode_t *mode)
        vid_usingvsync = false;
        vid_hidden = false;
        vid_activewindow = true;
-       vid_x11_hardwaregammasupported = XF86VidModeGetGammaRampSize(vidx11_display, vidx11_screen, &vid_x11_gammarampsize) != 0;
-#if !defined(__APPLE__) && !defined(SUNOS)
+#ifdef USEDGA
        vid_x11_dgasupported = XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion);
        if (!vid_x11_dgasupported)
                Con_Print( "Failed to detect XF86DGA Mouse extension\n" );
@@ -1509,8 +1688,39 @@ void Sys_SendKeyEvents(void)
        HandleEvents();
 }
 
+void VID_BuildJoyState(vid_joystate_t *joystate)
+{
+       VID_Shared_BuildJoyState_Begin(joystate);
+       VID_Shared_BuildJoyState_Finish(joystate);
+}
+
+void VID_EnableJoystick(qboolean enable)
+{
+       int index = joy_enable.integer > 0 ? joy_index.integer : -1;
+       qboolean success = false;
+       int sharedcount = 0;
+       sharedcount = VID_Shared_SetJoystick(index);
+       if (index >= 0 && index < sharedcount)
+               success = true;
+
+       // update cvar containing count of XInput joysticks
+       if (joy_detected.integer != sharedcount)
+               Cvar_SetValueQuick(&joy_detected, sharedcount);
+
+       Cvar_SetValueQuick(&joy_active, success ? 1 : 0);
+}
+
 void IN_Move (void)
 {
+       vid_joystate_t joystate;
+       VID_EnableJoystick(true);
+       VID_BuildJoyState(&joystate);
+       VID_ApplyJoyState(&joystate);
+}
+
+vid_mode_t *VID_GetDesktopMode(void)
+{
+       return &desktop_mode;
 }
 
 size_t VID_ListModes(vid_mode_t *modes, size_t maxcount)