now entirely dynamic OpenGL binding
[xonotic/darkplaces.git] / vid_glx.c
index f775560..07104c1 100644 (file)
--- a/vid_glx.c
+++ b/vid_glx.c
@@ -8,64 +8,68 @@ 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.  
+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 the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-
 */
-#include <termios.h>
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <sys/vt.h>
-#include <stdarg.h>
-#include <stdio.h>
+
+//#include <termios.h>
+//#include <sys/ioctl.h>
+//#include <sys/stat.h>
+//#include <sys/vt.h>
+//#include <stdarg.h>
+//#include <stdio.h>
 #include <signal.h>
 
-#include <dlfcn.h>
-
-#include "quakedef.h"
+//#include <dlfcn.h>
 
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
 #include <GL/glx.h>
 
 #include <X11/keysym.h>
 #include <X11/cursorfont.h>
 
+#include <X11/extensions/XShm.h>
 #include <X11/extensions/xf86dga.h>
 #include <X11/extensions/xf86vmode.h>
 
-static Display *dpy = NULL;
+#include "quakedef.h"
+
+XVisualInfo *(GLAPIENTRY *qglXChooseVisual)(Display *dpy, int screen, int *attribList);
+GLXContext (GLAPIENTRY *qglXCreateContext)(Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
+void (GLAPIENTRY *qglXDestroyContext)(Display *dpy, GLXContext ctx);
+Bool (GLAPIENTRY *qglXMakeCurrent)(Display *dpy, GLXDrawable drawable, GLXContext ctx);
+void (GLAPIENTRY *qglXSwapBuffers)(Display *dpy, GLXDrawable drawable);
+
+
+static Display *vidx11_display = NULL;
 static int scrnum;
 static Window win;
 static GLXContext ctx = NULL;
 
+Atom wm_delete_window_atom;
+
 #define KEY_MASK (KeyPressMask | KeyReleaseMask)
 #define MOUSE_MASK (ButtonPressMask | ButtonReleaseMask | \
                    PointerMotionMask | ButtonMotionMask )
 #define X_MASK (KEY_MASK | MOUSE_MASK | VisibilityChangeMask | StructureNotifyMask )
 
 
-unsigned               d_8to24table[256];
-unsigned char  d_15to8table[65536];
-
-cvar_t vid_mode = {"vid_mode","0",false};
 viddef_t       vid;                            // global video state
 
-static qboolean        mouse_avail = true;
-static qboolean        mouse_active = false;
-static float   mouse_x, mouse_y;
-static float   old_mouse_x, old_mouse_y;
+static qboolean                mouse_avail = true;
+static qboolean                mouse_active = false, usingmouse = false;
+static float   mouse_x, mouse_y;
 static int p_mouse_x, p_mouse_y;
 
-static cvar_t in_mouse = {"in_mouse", "1", false};
-static cvar_t in_dgamouse = {"in_dgamouse", "1", false};
-static cvar_t m_filter = {"m_filter", "0"};
+cvar_t vid_dga = {CVAR_SAVE, "vid_dga", "1"};
+cvar_t vid_dga_mouseaccel = {0, "vid_dga_mouseaccel", "1"};
 
-qboolean dgamouse = false;
 qboolean vidmode_ext = false;
 
 static int win_x, win_y;
@@ -73,50 +77,24 @@ static int win_x, win_y;
 static int scr_width, scr_height;
 
 static XF86VidModeModeInfo **vidmodes;
-//static int default_dotclock_vidmode;
 static int num_vidmodes;
 static qboolean vidmode_active = false;
 
-/*-----------------------------------------------------------------------*/
-
-int            texture_extension_number = 1;
-
-float          gldepthmin, gldepthmax;
-
-const char *gl_vendor;
-const char *gl_renderer;
-const char *gl_version;
-const char *gl_extensions;
-
-void (*qglMTexCoord2f) (GLenum, GLfloat, GLfloat);
-void (*qglSelectTexture) (GLenum);
-
-//static float vid_gamma = 1.0;
-
-// LordHavoc: ARB multitexture support
-int gl_mtex_enum = 0;
-
-// LordHavoc: in GLX these are never set, simply provided to make the rest of the code work
-qboolean isG200 = false;
-qboolean isRagePro = false;
-qboolean gl_mtexable = false;
-qboolean gl_arrays = false;
+static Visual *vidx11_visual;
+static Colormap vidx11_colormap;
 
 /*-----------------------------------------------------------------------*/
+
 static int
-XLateKey(XKeyEvent *ev/*, qboolean modified*/)
+XLateKey(XKeyEvent *ev)
 {
-//     char tmp[2];
        int key = 0;
        KeySym keysym;
 
-/*     if (!modified) {*/
-               keysym = XLookupKeysym(ev, 0);
-/*     } else {
-               XLookupString(ev, tmp, 1, &keysym, NULL);
-       }*/
+       keysym = XLookupKeysym(ev, 0);
 
-       switch(keysym) {
+       switch(keysym)
+       {
                case XK_KP_Page_Up:     key = KP_PGUP; break;
                case XK_Page_Up:        key = K_PGUP; break;
 
@@ -199,12 +177,12 @@ XLateKey(XKeyEvent *ev/*, qboolean modified*/)
                case XK_F35:            key = K_PGDN; break;
 
                default:
-                       if (keysym < 128) {
+                       if (keysym < 128)
+                       {
                                /* ASCII keys */
                                key = keysym;
-                               if (/*!modified && */((key >= 'A') && (key <= 'Z'))) {
+                               if ((key >= 'A') && (key <= 'Z'))
                                        key = key + ('a' - 'A');
-                               }
                        }
                        break;
        }
@@ -214,82 +192,78 @@ XLateKey(XKeyEvent *ev/*, qboolean modified*/)
 
 static Cursor CreateNullCursor(Display *display, Window root)
 {
-    Pixmap cursormask; 
-    XGCValues xgc;
-    GC gc;
-    XColor dummycolour;
-    Cursor cursor;
-
-    cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
-    xgc.function = GXclear;
-    gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
-    XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
-    dummycolour.pixel = 0;
-    dummycolour.red = 0;
-    dummycolour.flags = 04;
-    cursor = XCreatePixmapCursor(display, cursormask, cursormask,
-          &dummycolour,&dummycolour, 0,0);
-    XFreePixmap(display,cursormask);
-    XFreeGC(display,gc);
-    return cursor;
+       Pixmap cursormask;
+       XGCValues xgc;
+       GC gc;
+       XColor dummycolour;
+       Cursor cursor;
+
+       cursormask = XCreatePixmap(display, root, 1, 1, 1);
+       xgc.function = GXclear;
+       gc =  XCreateGC(display, cursormask, GCFunction, &xgc);
+       XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
+       dummycolour.pixel = 0;
+       dummycolour.red = 0;
+       dummycolour.flags = 04;
+       cursor = XCreatePixmapCursor(display, cursormask, cursormask, &dummycolour,&dummycolour, 0,0);
+       XFreePixmap(display,cursormask);
+       XFreeGC(display,gc);
+       return cursor;
 }
 
 static void install_grabs(void)
 {
-        XWindowAttributes attribs_1;
-        XSetWindowAttributes attribs_2;
+       XWindowAttributes attribs_1;
+       XSetWindowAttributes attribs_2;
 
-        XGetWindowAttributes(dpy, win, &attribs_1);
-        attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
-        XChangeWindowAttributes(dpy, win, CWEventMask, &attribs_2);
+       XGetWindowAttributes(vidx11_display, win, &attribs_1);
+       attribs_2.event_mask = attribs_1.your_event_mask | KEY_MASK | MOUSE_MASK;
+       XChangeWindowAttributes(vidx11_display, win, CWEventMask, &attribs_2);
 
 // inviso cursor
-       XDefineCursor(dpy, win, CreateNullCursor(dpy, win));
+       XDefineCursor(vidx11_display, win, CreateNullCursor(vidx11_display, win));
 
-       XGrabPointer(dpy, win,  True, 0, GrabModeAsync, GrabModeAsync,
-                    win, None, CurrentTime);
+       XGrabPointer(vidx11_display, win,  True, 0, GrabModeAsync, GrabModeAsync, win, None, CurrentTime);
 
-/*     if (in_dgamouse.value) {
+       if (vid_dga.integer)
+       {
                int MajorVersion, MinorVersion;
 
-               if (!XF86DGAQueryVersion(dpy, &MajorVersion, &MinorVersion)) { 
+               if (!XF86DGAQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
+               {
                        // unable to query, probalby not supported
                        Con_Printf( "Failed to detect XF86DGA Mouse\n" );
-                       in_dgamouse.value = 0;
-               } else {
-                       dgamouse = true;
-                       XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
-                       XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
+                       vid_dga.integer = 0;
+               }
+               else
+               {
+                       vid_dga.integer = 1;
+                       XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), XF86DGADirectMouse);
+                       XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
                }
-       } else {*/
-               XWarpPointer(dpy, None, win,
-                                        0, 0, 0, 0,
-                                        vid.width / 2, vid.height / 2);
-/*     }*/
+       }
+       else
+               XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, scr_width / 2, scr_height / 2);
 
-       XGrabKeyboard(dpy, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
+       XGrabKeyboard(vidx11_display, win, False, GrabModeAsync, GrabModeAsync, CurrentTime);
 
        mouse_active = true;
        mouse_x = mouse_y = 0;
-
-//     XSync(dpy, True);
 }
 
 static void uninstall_grabs(void)
 {
-       if (!dpy || !win)
+       if (!vidx11_display || !win)
                return;
 
-/*     if (dgamouse) {
-               dgamouse = false;
-               XF86DGADirectVideo(dpy, DefaultScreen(dpy), 0);
-       }*/
+       if (vid_dga.integer == 1)
+               XF86DGADirectVideo(vidx11_display, DefaultScreen(vidx11_display), 0);
 
-       XUngrabPointer(dpy, CurrentTime);
-       XUngrabKeyboard(dpy, CurrentTime);
+       XUngrabPointer(vidx11_display, CurrentTime);
+       XUngrabKeyboard(vidx11_display, CurrentTime);
 
 // inviso cursor
-       XUndefineCursor(dpy, win);
+       XUndefineCursor(vidx11_display, win);
 
        mouse_active = false;
 }
@@ -297,128 +271,176 @@ static void uninstall_grabs(void)
 static void HandleEvents(void)
 {
        XEvent event;
-//     KeySym ks;
-       int b;
        qboolean dowarp = false;
 
-       if (!dpy)
+       if (!vidx11_display)
                return;
 
-       while (XPending(dpy)) {
-               XNextEvent(dpy, &event);
+       while (XPending(vidx11_display))
+       {
+               XNextEvent(vidx11_display, &event);
 
-               switch (event.type) {
+               switch (event.type)
+               {
                case KeyPress:
+                       // key pressed
+                       Key_Event(XLateKey(&event.xkey), true);
+                       break;
+
                case KeyRelease:
-                       Key_Event(XLateKey(&event.xkey), event.type == KeyPress);
+                       // key released
+                       Key_Event(XLateKey(&event.xkey), false);
                        break;
 
                case MotionNotify:
-                       if (dgamouse) {
-                               mouse_x += event.xmotion.x_root/* * in_dga_mouseaccel.value*/;
-                               mouse_y += event.xmotion.y_root/* * in_dga_mouseaccel.value*/;
-                       } else {
-                               if (!p_mouse_x && !p_mouse_y) {
-                                       Con_Printf("event->xmotion.x: %d\n", event.xmotion.x); 
-                                       Con_Printf("event->xmotion.y: %d\n", event.xmotion.y); 
-                               }
-/*                             if (vid_fullscreen.value || _windowed_mouse.value) {*/
-                                       if (!event.xmotion.send_event) {
-                                               mouse_x += (event.xmotion.x - p_mouse_x);
-                                               mouse_y += (event.xmotion.y - p_mouse_y);
-                                               if (abs(vid.width/2 - event.xmotion.x) > vid.width / 4
-                                                   || abs(vid.height/2 - event.xmotion.y) > vid.height / 4) {
-                                                       dowarp = true;
-                                               }
-                                       }
-/*                             } else {
-                                       mouse_x += (event.xmotion.x - p_mouse_x);
-                                       mouse_y += (event.xmotion.y - p_mouse_y);
-                               }*/
-                               p_mouse_x = event.xmotion.x;
-                               p_mouse_y = event.xmotion.y;
-                       }
-        
-/*                     if (mouse_active) {
-                               if (dgamouse) {
-                                       mouse_x += (event.xmotion.x + win_x) * 2;
-                                       mouse_y += (event.xmotion.y + win_y) * 2;
-                               } 
+                       // mouse moved
+                       if (usingmouse)
+                       {
+                               if (vid_dga.integer == 1)
+                               {
+                                       mouse_x += event.xmotion.x_root * vid_dga_mouseaccel.value;
+                                       mouse_y += event.xmotion.y_root * vid_dga_mouseaccel.value;
+                               }
                                else
                                {
-                                       mouse_x += ((int)event.xmotion.x - mwx) * 2;
-                                       mouse_y += ((int)event.xmotion.y - mwy) * 2;
-                                       mwx = event.xmotion.x;
-                                       mwy = event.xmotion.y;
 
-                                       if (mouse_x || mouse_y)
-                                               dowarp = true;
+                                       if (!event.xmotion.send_event)
+                                       {
+                                               mouse_x += event.xmotion.x - p_mouse_x;
+                                               mouse_y += event.xmotion.y - p_mouse_y;
+                                               if (abs(scr_width/2 - event.xmotion.x) > scr_width / 4 || abs(scr_height/2 - event.xmotion.y) > scr_height / 4)
+                                                       dowarp = true;
+                                       }
+                                       p_mouse_x = event.xmotion.x;
+                                       p_mouse_y = event.xmotion.y;
                                }
-                       }*/
+                       }
+                       else
+                               ui_mouseupdate(event.xmotion.x, event.xmotion.y);
                        break;
 
                case ButtonPress:
-                       b=-1;
-                       if (event.xbutton.button == 1)
-                               b = 0;
-                       else if (event.xbutton.button == 2)
-                               b = 2;
-                       else if (event.xbutton.button == 3)
-                               b = 1;
-                       if (b>=0)
-                               Key_Event(K_MOUSE1 + b, true);
+                       // mouse button pressed
+                       switch(event.xbutton.button)
+                       {
+                       case 1:
+                               Key_Event(K_MOUSE1, true);
+                               break;
+                       case 2:
+                               Key_Event(K_MOUSE3, true);
+                               break;
+                       case 3:
+                               Key_Event(K_MOUSE2, true);
+                               break;
+                       case 4:
+                               Key_Event(K_MWHEELUP, true);
+                               break;
+                       case 5:
+                               Key_Event(K_MWHEELDOWN, true);
+                               break;
+               default:
+                               Con_Printf("HandleEvents: ButtonPress gave value %d, 1-5 expected\n", event.xbutton.button);
+                               break;
+                       }
                        break;
 
                case ButtonRelease:
-                       b=-1;
-                       if (event.xbutton.button == 1)
-                               b = 0;
-                       else if (event.xbutton.button == 2)
-                               b = 2;
-                       else if (event.xbutton.button == 3)
-                               b = 1;
-                       if (b>=0)
-                               Key_Event(K_MOUSE1 + b, false);
+                       // mouse button released
+                       switch(event.xbutton.button)
+                       {
+                       case 1:
+                               Key_Event(K_MOUSE1, false);
+                               break;
+                       case 2:
+                               Key_Event(K_MOUSE3, false);
+                               break;
+                       case 3:
+                               Key_Event(K_MOUSE2, false);
+                               break;
+                       case 4:
+                               Key_Event(K_MWHEELUP, false);
+                               break;
+                       case 5:
+                               Key_Event(K_MWHEELDOWN, false);
+                               break;
+               default:
+                               Con_Printf("HandleEvents: ButtonRelease gave value %d, 1-5 expected\n", event.xbutton.button);
+                               break;
+                       }
                        break;
 
-               case CreateNotify :
+               case CreateNotify:
+                       // window created
                        win_x = event.xcreatewindow.x;
                        win_y = event.xcreatewindow.y;
                        break;
 
-               case ConfigureNotify :
+               case ConfigureNotify:
+                       // window changed size/location
                        win_x = event.xconfigure.x;
                        win_y = event.xconfigure.y;
                        break;
+               case DestroyNotify:
+                       // window has been destroyed
+                       Sys_Quit();
+                       break;
+               case ClientMessage:
+                       // window manager messages
+                       if ((event.xclient.format == 32) && (event.xclient.data.l[0] == wm_delete_window_atom))
+                               Sys_Quit();
+                       break;
+               case MapNotify:
+                       // window restored
+                       vid_hidden = false;
+                       break;
+               case UnmapNotify:
+                       // window iconified/rolledup/whatever
+                       vid_hidden = true;
+                       break;
+               case FocusIn:
+                       // window is now the input focus
+                       break;
+               case FocusOut:
+                       // window is no longer the input focus
+                       break;
+               case EnterNotify:
+                       // mouse entered window
+                       break;
+               case LeaveNotify:
+                       // mouse left window
+                       break;
                }
        }
 
-       if (dowarp) {
+       if (dowarp)
+       {
                /* move the mouse to the window center again */
-               p_mouse_x = vid.width / 2;
-               p_mouse_y = vid.height / 2;
-               XWarpPointer(dpy, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
+               p_mouse_x = scr_width / 2;
+               p_mouse_y = scr_height / 2;
+               XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, p_mouse_x, p_mouse_y);
        }
 
 }
 
-static void IN_DeactivateMouse( void ) 
+static void IN_DeactivateMouse( void )
 {
-       if (!mouse_avail || !dpy || !win)
+       if (!mouse_avail || !vidx11_display || !win)
                return;
 
-       if (mouse_active) {
+       if (mouse_active)
+       {
                uninstall_grabs();
                mouse_active = false;
        }
 }
 
-static void IN_ActivateMouse( void ) 
+static void IN_ActivateMouse( void )
 {
-       if (!mouse_avail || !dpy || !win)
+       if (!mouse_avail || !vidx11_display || !win)
                return;
 
-       if (!mouse_active) {
+       if (!mouse_active)
+       {
                mouse_x = mouse_y = 0; // don't spazz
                install_grabs();
                mouse_active = true;
@@ -428,24 +450,25 @@ static void IN_ActivateMouse( void )
 
 void VID_Shutdown(void)
 {
-       if (!ctx || !dpy)
+       if (!ctx || !vidx11_display)
                return;
 
-       if (dpy) {
+       if (vidx11_display)
+       {
                uninstall_grabs();
 
-               if (ctx)
-                       glXDestroyContext(dpy, ctx);
-               if (win)
-                       XDestroyWindow(dpy, win);
                if (vidmode_active)
-                       XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[0]);
-               XCloseDisplay(dpy);
+                       XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[0]);
+               if (win)
+                       XDestroyWindow(vidx11_display, win);
+               XCloseDisplay(vidx11_display);
        }
        vidmode_active = false;
-       dpy = NULL;
+       vidx11_display = NULL;
        win = 0;
        ctx = NULL;
+
+       GL_CloseLibrary();
 }
 
 void signal_handler(int sig)
@@ -470,120 +493,145 @@ void InitSig(void)
 }
 
 /*
-void (*qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
-void (*qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
-void (*qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
-void (*qglArrayElement)(GLint i);
-void (*qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
-void (*qglMTexCoord2f)(GLenum, GLfloat, GLfloat);
-void (*qglSelectTexture)(GLenum);
-
-void VID_CheckVertexArrays (void)
+=================
+VID_GetWindowSize
+=================
+*/
+void VID_GetWindowSize (int *x, int *y, int *width, int *height)
 {
-       void *prjobj;
-       if (COM_CheckParm("-novertex"))
+       *x = *y = 0;
+       *width = scr_width;
+       *height = scr_height;
+}
+
+void VID_Finish (void)
+{
+       int usemouse;
+       if (r_render.integer)
        {
-               Con_Printf("...vertex array support disabled\n");
-               return;
+               qglFinish();
+               qglXSwapBuffers(vidx11_display, win);
        }
-       if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
+
+// handle the mouse state when windowed if that's changed
+       usemouse = false;
+       if (vid_mouse.integer && key_dest == key_game)
+               usemouse = true;
+       if (vidmode_active)
+               usemouse = true;
+       if (usemouse)
        {
-               Con_Printf("Unable to open symbol list for main program.\n");
-               return;
+               if (!usingmouse)
+               {
+                       usingmouse = true;
+                       IN_ActivateMouse ();
+               }
        }
-       qglMTexCoord2fSGIS = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
-       if ((qglArrayElement = (void *) dlsym(prjobj, "glArrayElement"))
-        && (qglColorPointer = (void *) dlsym(prjobj, "glColorPointer"))
-//      && (qglDrawArrays = (void *) dlsym(prjobj, "glDrawArrays"))
-        && (qglDrawElements = (void *) dlsym(prjobj, "glDrawElements"))
-//      && (qglInterleavedArrays = (void *) dlsym(prjobj, "glInterleavedArrays"))
-        && (qglTexCoordPointer = (void *) dlsym(prjobj, "glTexCoordPointer"))
-        && (qglVertexPointer = (void *) dlsym(prjobj, "glVertexPointer"))
-               )
+       else
        {
-               Con_Printf("...vertex array support detected\n");
-               gl_arrays = true;
-               dlclose(prjobj);
-               return;
+               if (usingmouse)
+               {
+                       usingmouse = false;
+                       IN_DeactivateMouse ();
+               }
        }
-
-       Con_Printf("...vertex array support disabled (not detected - get a better driver)\n");
-       dlclose(prjobj);
-}
-*/
-
-// LordHavoc: require OpenGL 1.2.x
-void VID_CheckVertexArrays (void)
-{
-       gl_arrays = true;
 }
 
-void VID_CheckMultiTexture(void) 
+// LordHavoc: ported from SDL 1.2.2, this was far more difficult to port from
+// SDL than to simply use the XFree gamma ramp extension, but that affects the
+// whole screen even when the game window is inactive, this only affects the
+// screen while the window is active, very desirable behavior :)
+int VID_SetGamma(float prescale, float gamma, float scale, float base)
 {
-       void *prjobj;
-       qglMTexCoord2f = NULL;
-       qglSelectTexture = NULL;
-       // Check to see if multitexture is disabled
-       if (COM_CheckParm("-nomtex"))
+// LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
+#if 1
+       return FALSE;
+#else
+       int i, ncolors, c;
+       unsigned int Rmask, Gmask, Bmask, Rloss, Gloss, Bloss, Rshift, Gshift, Bshift, mask;
+       XColor xcmap[256];
+       unsigned short ramp[256];
+
+       if (COM_CheckParm("-nogamma"))
+               return FALSE;
+
+       if (vidx11_visual->class != DirectColor)
        {
-               Con_Printf("...multitexture disabled\n");
-               return;
+               Con_Printf("X11 Visual class is %d, can only do gamma on %d\n", vidx11_visual->class, DirectColor);
+               return FALSE;
        }
-       if ((prjobj = dlopen(NULL, RTLD_LAZY)) == NULL)
+
+       Rmask = vidx11_visual->red_mask;
+       Gmask = vidx11_visual->green_mask;
+       Bmask = vidx11_visual->blue_mask;
+
+       Rshift = 0;
+       Rloss = 8;
+       if ((mask = Rmask))
        {
-               Con_Printf("Unable to open symbol list for main program.\n");
-               return;
+               for (;!(mask & 1);mask >>= 1)
+                       ++Rshift;
+               for (;(mask & 1);mask >>= 1)
+                       --Rloss;
        }
-       // Test for ARB_multitexture
-       if (!COM_CheckParm("-SGISmtex") && strstr(gl_extensions, "GL_ARB_multitexture "))
+       Gshift = 0;
+       Gloss = 8;
+       if ((mask = Gmask))
        {
-               Con_Printf("...using GL_ARB_multitexture\n");
-               qglMTexCoord2f = (void *) dlsym(prjobj, "glMultiTexCoord2fARB");
-               qglSelectTexture = (void *) dlsym(prjobj, "glActiveTextureARB");
-               gl_mtexable = true;
-               gl_mtex_enum = GL_TEXTURE0_ARB;
+               for (;!(mask & 1);mask >>= 1)
+                       ++Gshift;
+               for (;(mask & 1);mask >>= 1)
+                       --Gloss;
        }
-       else if (strstr(gl_extensions, "GL_SGIS_multitexture ")) // Test for SGIS_multitexture (if ARB_multitexture not found)
+       Bshift = 0;
+       Bloss = 8;
+       if ((mask = Bmask))
        {
-               Con_Printf("...using GL_SGIS_multitexture\n");
-               qglMTexCoord2f = (void *) dlsym(prjobj, "glMTexCoord2fSGIS");
-               qglSelectTexture = (void *) dlsym(prjobj, "glSelectTextureSGIS");
-               gl_mtexable = true;
-               gl_mtex_enum = TEXTURE0_SGIS;
+               for (;!(mask & 1);mask >>= 1)
+                       ++Bshift;
+               for (;(mask & 1);mask >>= 1)
+                       --Bloss;
        }
-       if (!gl_mtexable)
-               Con_Printf("...multitexture disabled (not detected)\n");
-       dlclose(prjobj);
-}
-
-/*
-=================
-GL_BeginRendering
-
-=================
-*/
-void GL_BeginRendering (int *x, int *y, int *width, int *height)
-{
-       *x = *y = 0;
-       *width = scr_width;
-       *height = scr_height;
-
-//     glViewport (*x, *y, *width, *height);
-}
 
+       BuildGammaTable16(prescale, gamma, scale, base, ramp);
 
-void GL_EndRendering (void)
-{
-       if (!r_render.value)
-               return;
-       glFlush();
-       glXSwapBuffers(dpy, win);
+       // convert gamma ramp to palette (yes this seems odd)
+       ncolors = vidx11_visual->map_entries;
+       for (i = 0;i < ncolors;i++)
+       {
+               c = (256 * i / ncolors);
+               xcmap[i].pixel = ((c >> Rloss) << Rshift) | ((c >> Gloss) << Gshift) | ((c >> Bloss) << Bshift);
+               xcmap[i].red   = ramp[c];
+               xcmap[i].green = ramp[c];
+               xcmap[i].blue  = ramp[c];
+               xcmap[i].flags = (DoRed|DoGreen|DoBlue);
+       }
+       XStoreColors(vidx11_display, vidx11_colormap, xcmap, ncolors);
+       XSync(vidx11_display, false);
+       // FIXME: should this check for BadAccess/BadColor/BadValue errors produced by XStoreColors before setting this true?
+       return TRUE;
+#endif
 }
 
-void VID_Init()
+void VID_Init(void)
 {
        int i;
-       int attrib[] = {
+// LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
+#if 0
+       int gammaattrib[] =
+       {
+               GLX_RGBA,
+               GLX_RED_SIZE, 1,
+               GLX_GREEN_SIZE, 1,
+               GLX_BLUE_SIZE, 1,
+               GLX_DOUBLEBUFFER,
+               GLX_DEPTH_SIZE, 1,
+               GLX_X_VISUAL_TYPE, GLX_DIRECT_COLOR,
+               None
+       };
+#endif
+       int nogammaattrib[] =
+       {
                GLX_RGBA,
                GLX_RED_SIZE, 1,
                GLX_GREEN_SIZE, 1,
@@ -592,7 +640,6 @@ void VID_Init()
                GLX_DEPTH_SIZE, 1,
                None
        };
-//     char    gldir[MAX_OSPATH];
        int width = 640, height = 480;
        XSetWindowAttributes attr;
        unsigned long mask;
@@ -600,13 +647,12 @@ void VID_Init()
        XVisualInfo *visinfo;
        qboolean fullscreen = true;
        int MajorVersion, MinorVersion;
-       int actualWidth, actualHeight;
 
-       Cvar_RegisterVariable (&vid_mode);
-       Cvar_RegisterVariable (&in_mouse);
-       Cvar_RegisterVariable (&in_dgamouse);
-       Cvar_RegisterVariable (&m_filter);
-       
+       GL_OpenLibrary();
+
+       Cvar_RegisterVariable (&vid_dga);
+       Cvar_RegisterVariable (&vid_dga_mouseaccel);
+
 // interpret command-line params
 
 // set vid parameters
@@ -637,101 +683,137 @@ void VID_Init()
        if (vid.conheight < 200)
                vid.conheight = 200;
 
-       if (!(dpy = XOpenDisplay(NULL))) {
+       if (!(vidx11_display = XOpenDisplay(NULL)))
+       {
                fprintf(stderr, "Error couldn't open the X display\n");
                exit(1);
        }
 
-       scrnum = DefaultScreen(dpy);
-       root = RootWindow(dpy, scrnum);
+       scrnum = DefaultScreen(vidx11_display);
+       root = RootWindow(vidx11_display, scrnum);
 
        // Get video mode list
        MajorVersion = MinorVersion = 0;
-       if (!XF86VidModeQueryVersion(dpy, &MajorVersion, &MinorVersion)) { 
+       if (!XF86VidModeQueryVersion(vidx11_display, &MajorVersion, &MinorVersion))
                vidmode_ext = false;
-       } else {
+       else
+       {
                Con_Printf("Using XFree86-VidModeExtension Version %d.%d\n", MajorVersion, MinorVersion);
                vidmode_ext = true;
        }
 
-       visinfo = glXChooseVisual(dpy, scrnum, attrib);
-       if (!visinfo) {
-               fprintf(stderr, "qkHack: Error couldn't get an RGB, Double-buffered, Depth visual\n");
-               exit(1);
+       if ((qglXChooseVisual = GL_GetProcAddress("glXChooseVisual")) == NULL
+        || (qglXCreateContext = GL_GetProcAddress("glXCreateContext")) == NULL
+        || (qglXMakeCurrent = GL_GetProcAddress("glXMakeCurrent")) == NULL
+        || (qglXSwapBuffers = GL_GetProcAddress("glXSwapBuffers")) == NULL)
+               Sys_Error("glX functions not found in libGL.so.1\n");
+
+       visinfo = NULL;
+// LordHavoc: FIXME: finish this code, we need to allocate colors before we can store them
+#if 0
+       if (!COM_CheckParm("-nogamma"))
+               visinfo = qglXChooseVisual(vidx11_display, scrnum, gammaattrib);
+#endif
+       if (!visinfo)
+       {
+               visinfo = qglXChooseVisual(vidx11_display, scrnum, nogammaattrib);
+               if (!visinfo)
+               {
+                       Sys_Error("couldn't get an RGB, Double-buffered, Depth visual\n");
+                       exit(1);
+               }
        }
 
-       if (vidmode_ext) {
+       if (vidmode_ext)
+       {
                int best_fit, best_dist, dist, x, y;
-               
-               XF86VidModeGetAllModeLines(dpy, scrnum, &num_vidmodes, &vidmodes);
+
+               XF86VidModeGetAllModeLines(vidx11_display, scrnum, &num_vidmodes, &vidmodes);
 
                // Are we going fullscreen?  If so, let's change video mode
-               if (fullscreen) {
+               if (fullscreen)
+               {
                        best_dist = 9999999;
                        best_fit = -1;
 
-                       for (i = 0; i < num_vidmodes; i++) {
-                               if (width > vidmodes[i]->hdisplay ||
-                                       height > vidmodes[i]->vdisplay)
+                       for (i = 0; i < num_vidmodes; i++)
+                       {
+                               if (width > vidmodes[i]->hdisplay || height > vidmodes[i]->vdisplay)
                                        continue;
 
                                x = width - vidmodes[i]->hdisplay;
                                y = height - vidmodes[i]->vdisplay;
                                dist = (x * x) + (y * y);
-                               if (dist < best_dist) {
+                               if (dist < best_dist)
+                               {
                                        best_dist = dist;
                                        best_fit = i;
                                }
                        }
 
-                       if (best_fit != -1) {
-                               actualWidth = vidmodes[best_fit]->hdisplay;
-                               actualHeight = vidmodes[best_fit]->vdisplay;
+                       if (best_fit != -1)
+                       {
+                               // LordHavoc: changed from ActualWidth/ActualHeight =,
+                               // to width/height =, so the window will take the full area of
+                               // the mode chosen
+                               width = vidmodes[best_fit]->hdisplay;
+                               height = vidmodes[best_fit]->vdisplay;
 
                                // change to the mode
-                               XF86VidModeSwitchToMode(dpy, scrnum, vidmodes[best_fit]);
+                               XF86VidModeSwitchToMode(vidx11_display, scrnum, vidmodes[best_fit]);
                                vidmode_active = true;
 
                                // Move the viewport to top left
-                               XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
-                       } else
+                               XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
+                       }
+                       else
                                fullscreen = 0;
                }
        }
 
+       // LordHavoc: save the visual for use in gamma ramp settings later
+       vidx11_visual = visinfo->visual;
+
        /* window attributes */
        attr.background_pixel = 0;
        attr.border_pixel = 0;
-       attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
+       // LordHavoc: save the colormap for later, too
+       vidx11_colormap = attr.colormap = XCreateColormap(vidx11_display, root, visinfo->visual, AllocNone);
        attr.event_mask = X_MASK;
-       if (vidmode_active) {
-               mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | 
-                       CWEventMask | CWOverrideRedirect;
+       if (vidmode_active)
+       {
+               mask = CWBackPixel | CWColormap | CWSaveUnder | CWBackingStore | CWEventMask | CWOverrideRedirect;
                attr.override_redirect = True;
                attr.backing_store = NotUseful;
                attr.save_under = False;
-       } else
+       }
+       else
                mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
 
-       win = XCreateWindow(dpy, root, 0, 0, width, height,
-                                               0, visinfo->depth, InputOutput,
-                                               visinfo->visual, mask, &attr);
-       XMapWindow(dpy, win);
+       win = XCreateWindow(vidx11_display, root, 0, 0, width, height, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
+       XStoreName(vidx11_display, win, gamename);
+       XMapWindow(vidx11_display, win);
+
+       // LordHavoc: making the close button on a window do the right thing
+       // seems to involve this mess, sigh...
+       wm_delete_window_atom = XInternAtom(vidx11_display, "WM_DELETE_WINDOW", false);
+       XSetWMProtocols(vidx11_display, win, &wm_delete_window_atom, 1);
 
-       if (vidmode_active) {
-               XMoveWindow(dpy, win, 0, 0);
-               XRaiseWindow(dpy, win);
-               XWarpPointer(dpy, None, win, 0, 0, 0, 0, 0, 0);
-               XFlush(dpy);
+       if (vidmode_active)
+       {
+               XMoveWindow(vidx11_display, win, 0, 0);
+               XRaiseWindow(vidx11_display, win);
+               XWarpPointer(vidx11_display, None, win, 0, 0, 0, 0, 0, 0);
+               XFlush(vidx11_display);
                // Move the viewport to top left
-               XF86VidModeSetViewPort(dpy, scrnum, 0, 0);
+               XF86VidModeSetViewPort(vidx11_display, scrnum, 0, 0);
        }
 
-       XFlush(dpy);
+       XFlush(vidx11_display);
 
-       ctx = glXCreateContext(dpy, visinfo, NULL, True);
+       ctx = qglXCreateContext(vidx11_display, visinfo, NULL, True);
 
-       glXMakeCurrent(dpy, win, ctx);
+       qglXMakeCurrent(vidx11_display, win, ctx);
 
        scr_width = width;
        scr_height = height;
@@ -740,20 +822,14 @@ void VID_Init()
                vid.conheight = height;
        if (vid.conwidth > width)
                vid.conwidth = width;
-       vid.width = vid.conwidth;
-       vid.height = vid.conheight;
-
-       vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
 
        InitSig(); // trap evil signals
 
+       vid_hidden = false;
+
        GL_Init();
 
        Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
-
-       vid.recalc_refdef = 1;                          // force a surface cache flush
-
-       install_grabs();
 }
 
 void Sys_SendKeyEvents(void)
@@ -761,13 +837,10 @@ void Sys_SendKeyEvents(void)
        HandleEvents();
 }
 
-void Force_CenterView_f (void)
-{
-       cl.viewangles[PITCH] = 0;
-}
-
 void IN_Init(void)
 {
+       if (COM_CheckParm ("-nomouse"))
+               mouse_avail = false;
 }
 
 void IN_Shutdown(void)
@@ -781,62 +854,13 @@ IN_Commands
 */
 void IN_Commands (void)
 {
-       if (!dpy || !win)
-               return;
-
-       if (vidmode_active || key_dest == key_game)
-               IN_ActivateMouse();
-       else
-               IN_DeactivateMouse ();
-}
-
-/*
-===========
-IN_Move
-===========
-*/
-void IN_MouseMove (usercmd_t *cmd)
-{
-       if (!mouse_avail)
-               return;
-
-        if (!mouse_avail)
-                return;
-
-        if (m_filter.value) {
-                mouse_x = (mouse_x + old_mouse_x) * 0.5;
-                mouse_y = (mouse_y + old_mouse_y) * 0.5;
-
-                old_mouse_x = mouse_x;
-                old_mouse_y = mouse_y;
-        }
-
-        mouse_x *= sensitivity.value;
-        mouse_y *= sensitivity.value;
-        
-        if (in_strafe.state & 1)
-                cmd->sidemove += m_side.value * mouse_x;
-        else
-                cl.viewangles[YAW] -= m_yaw.value * mouse_x;
-                
-/*        if (freelook)*/
-                V_StopPitchDrift ();
-
-        if (/*freelook && */!(in_strafe.state & 1)) {
-                cl.viewangles[PITCH] += m_pitch.value * mouse_y;
-                cl.viewangles[PITCH] = bound (-70, cl.viewangles[PITCH], 80);
-        } else {
-                if ((in_strafe.state & 1) && noclip_anglehack)
-                        cmd->upmove -= m_forward.value * mouse_y;
-                else
-                        cmd->forwardmove -= m_forward.value * mouse_y;
-        }
-        mouse_x = mouse_y = 0.0;
 }
 
 void IN_Move (usercmd_t *cmd)
 {
-       IN_MouseMove(cmd);
+       if (mouse_avail)
+               IN_Mouse(cmd, mouse_x, mouse_y);
+       mouse_x = 0;
+       mouse_y = 0;
 }
 
-