/* Copyright (C) 1997-2001 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* ** GLW_IMP.C ** ** This file contains ALL Linux specific stuff having to do with the ** OpenGL refresh. When a port is being made the following functions ** must be implemented by the port: ** ** GLimp_EndFrame ** GLimp_Init ** GLimp_Shutdown ** GLimp_SwitchFullscreen ** */ #include #include #include #include #include #include #include #include #include "../ref_gl/gl_local.h" #include "../client/keys.h" #include "../linux/rw_linux.h" GLXContext gl_cx; static qboolean doShm; static Display *x_disp; static Colormap x_cmap; static Window x_win; static GC x_gc; static Visual *x_vis; static XVisualInfo *x_visinfo; static int StudlyRGBattributes[] = { GLX_DOUBLEBUFFER, GLX_RGBA, GLX_RED_SIZE, 4, GLX_GREEN_SIZE, 4, GLX_BLUE_SIZE, 4, GLX_DEPTH_SIZE, 1, GLX_SAMPLES_SGIS, 4, /* for better AA */ None, }; static int RGBattributes[] = { GLX_DOUBLEBUFFER, GLX_RGBA, GLX_RED_SIZE, 4, GLX_GREEN_SIZE, 4, GLX_BLUE_SIZE, 4, GLX_DEPTH_SIZE, 1, None, }; #define STD_EVENT_MASK (StructureNotifyMask | KeyPressMask \ | KeyReleaseMask | ExposureMask | PointerMotionMask | \ ButtonPressMask | ButtonReleaseMask) int current_framebuffer; static int x_shmeventtype; //static XShmSegmentInfo x_shminfo; static qboolean oktodraw = false; static qboolean X11_active = false; struct { int key; int down; } keyq[64]; int keyq_head=0; int keyq_tail=0; static int mx, my; static int p_mouse_x, p_mouse_y; static cvar_t *_windowed_mouse; static cvar_t *sensitivity; static cvar_t *lookstrafe; static cvar_t *m_side; static cvar_t *m_yaw; static cvar_t *m_pitch; static cvar_t *m_forward; static cvar_t *freelook; int config_notify=0; int config_notify_width; int config_notify_height; typedef unsigned short PIXEL; // Console variables that we need to access from this module /*****************************************************************************/ /* MOUSE */ /*****************************************************************************/ // this is inside the renderer shared lib, so these are called from vid_so static qboolean mouse_avail; static int mouse_buttonstate; static int mouse_oldbuttonstate; static int mouse_x, mouse_y; static int old_mouse_x, old_mouse_y; static float old_windowed_mouse; static int p_mouse_x, p_mouse_y; static cvar_t *_windowed_mouse; static cvar_t *m_filter; static cvar_t *in_mouse; static qboolean mlooking; // state struct passed in Init static in_state_t *in_state; int XShmQueryExtension(Display *); int XShmGetEventBase(Display *); static void signal_handler(int sig) { fprintf(stderr, "Received signal %d, exiting...\n", sig); GLimp_Shutdown(); _exit(0); } static void InitSig(void) { struct sigaction sa; sigaction(SIGINT, 0, &sa); sa.sa_handler = signal_handler; sigaction(SIGINT, &sa, 0); sigaction(SIGTERM, &sa, 0); } /* ** GLimp_SetMode */ int GLimp_SetMode( unsigned int *pwidth, unsigned int *pheight, int mode, qboolean fullscreen ) { int width, height; GLint attribs[32]; fprintf(stderr, "GLimp_SetMode\n"); ri.Con_Printf( PRINT_ALL, "Initializing OpenGL display\n"); ri.Con_Printf (PRINT_ALL, "...setting mode %d:", mode ); if ( !ri.Vid_GetModeInfo( &width, &height, mode ) ) { ri.Con_Printf( PRINT_ALL, " invalid mode\n" ); return rserr_invalid_mode; } ri.Con_Printf( PRINT_ALL, " %d %d\n", width, height ); // destroy the existing window GLimp_Shutdown (); *pwidth = width; *pheight = height; if ( !GLimp_InitGraphics( fullscreen ) ) { // failed to set a valid mode in windowed mode return rserr_invalid_mode; } /* gl_cx = glXCreateContext( x_disp, x_visinfo, 0, True ); */ // let the sound and input subsystems know about the new window ri.Vid_NewWindow (width, height); return rserr_ok; } /* ** GLimp_Shutdown ** ** This routine does all OS specific shutdown procedures for the OpenGL ** subsystem. Under OpenGL this means NULLing out the current DC and ** HGLRC, deleting the rendering context, and releasing the DC acquired ** for the window. The state structure is also nulled out. ** */ void GLimp_Shutdown( void ) { fprintf(stderr, "GLimp_Shutdown\n"); if (!x_disp) return; XSynchronize( x_disp, True ); XAutoRepeatOn(x_disp); XCloseDisplay(x_disp); x_disp = NULL; } /* ** GLimp_Init ** ** This routine is responsible for initializing the OS specific portions ** of OpenGL. */ int GLimp_Init( void *hinstance, void *wndproc ) { // catch signals so i can turn on auto-repeat and stuff InitSig(); return true; } /* ** GLimp_BeginFrame */ void GLimp_BeginFrame( float camera_seperation ) { } /* ** GLimp_EndFrame ** ** Responsible for doing a swapbuffers and possibly for other stuff ** as yet to be determined. Probably better not to make this a GLimp ** function and instead do a call to GLimp_SwapBuffers. */ void GLimp_EndFrame (void) { glFlush(); glXSwapBuffers( x_disp, x_win ); } /* ** GLimp_AppActivate */ void GLimp_AppActivate( qboolean active ) { } // ======================================================================== // makes a null cursor // ======================================================================== 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; } /* ** GLimp_InitGraphics ** ** This initializes the GL implementation specific ** graphics subsystem. ** ** The necessary width and height parameters are grabbed from ** vid.width and vid.height. */ qboolean GLimp_InitGraphics( qboolean fullscreen ) { int pnum, i; XVisualInfo template; int num_visuals; int template_mask; fprintf(stderr, "GLimp_InitGraphics\n"); srandom(getpid()); // let the sound and input subsystems know about the new window ri.Vid_NewWindow (vid.width, vid.height); // open the display x_disp = XOpenDisplay(NULL); if (!x_disp) { if (getenv("DISPLAY")) Sys_Error("VID: Could not open display [%s]\n", getenv("DISPLAY")); else Sys_Error("VID: Could not open local display\n"); } else fprintf(stderr, "VID: Opened display %s\n", getenv("DISPLAY")); XAutoRepeatOff(x_disp); // for debugging only XSynchronize(x_disp, True); // check for command-line window size template_mask = 0; #if 0 // specify a visual id if ((pnum=COM_CheckParm("-visualid"))) { if (pnum >= com_argc-1) Sys_Error("VID: -visualid \n"); template.visualid = Q_atoi(com_argv[pnum+1]); template_mask = VisualIDMask; } // If not specified, use default visual else #endif { int screen; screen = XDefaultScreen(x_disp); template.visualid = XVisualIDFromVisual(XDefaultVisual(x_disp, screen)); template_mask = VisualIDMask; } // pick a visual- warn if more than one was available x_visinfo = glXChooseVisual( x_disp, DefaultScreen( x_disp ), StudlyRGBattributes ); if (!x_visinfo) { fprintf(stderr, "Using non studly RGB attributes\n"); x_visinfo = glXChooseVisual( x_disp, DefaultScreen( x_disp ), RGBattributes ); if (!x_visinfo) Sys_Error( "No matching visual available!\n" ); } ri.Con_Printf(PRINT_ALL, "Using visualid 0x%x:\n", (int)(x_visinfo->visualid)); #if 0 if (verbose) { printf("Using visualid %d:\n", (int)(x_visinfo->visualid)); printf(" screen %d\n", x_visinfo->screen); printf(" red_mask 0x%x\n", (int)(x_visinfo->red_mask)); printf(" green_mask 0x%x\n", (int)(x_visinfo->green_mask)); printf(" blue_mask 0x%x\n", (int)(x_visinfo->blue_mask)); printf(" colormap_size %d\n", x_visinfo->colormap_size); printf(" bits_per_rgb %d\n", x_visinfo->bits_per_rgb); } #endif x_vis = x_visinfo->visual; // setup attributes for main window { int attribmask = CWEventMask | CWColormap | CWBorderPixel; XSetWindowAttributes attribs; Colormap tmpcmap; Window root_win = XRootWindow(x_disp, x_visinfo->screen); tmpcmap = XCreateColormap(x_disp, root_win, x_vis, AllocNone); attribs.event_mask = STD_EVENT_MASK; attribs.border_pixel = 0; attribs.colormap = tmpcmap; // create the main window x_win = XCreateWindow( x_disp, root_win, 0, 0, // x, y vid.width, vid.height, 0, // borderwidth x_visinfo->depth, InputOutput, x_vis, attribmask, &attribs ); XStoreName(x_disp, x_win, "Quake II"); if (x_visinfo->class != TrueColor) XFreeColormap(x_disp, tmpcmap); } if (x_visinfo->depth == 8) { // create and upload the palette if (x_visinfo->class == PseudoColor) { x_cmap = XCreateColormap(x_disp, x_win, x_vis, AllocAll); XSetWindowColormap(x_disp, x_win, x_cmap); } } // inviso cursor XDefineCursor(x_disp, x_win, CreateNullCursor(x_disp, x_win)); // create the GC { XGCValues xgcvalues; int valuemask = GCGraphicsExposures; xgcvalues.graphics_exposures = False; x_gc = XCreateGC(x_disp, x_win, valuemask, &xgcvalues ); } // set window properties for full screen if (fullscreen) { MotifWmHints wmhints; Atom aHints; XSizeHints sizehints; XWindowChanges changes; aHints = XInternAtom( x_disp, "_MOTIF_WM_HINTS", 0 ); if (aHints == None) { ri.Con_Printf( PRINT_ALL, "Could not intern X atom for _MOTIF_WM_HINTS." ); /* return( false ); */ } else { wmhints.flags = MWM_HINTS_DECORATIONS; wmhints.decorations = 0; // Absolutely no decorations. XChangeProperty(x_disp, x_win, aHints, aHints, 32, PropModeReplace, (unsigned char *)&wmhints, 4 ); sizehints.flags = USPosition | USSize; sizehints.x = 0; sizehints.y = 0; sizehints.width = vid.width; sizehints.height = vid.height; XSetWMNormalHints( x_disp, x_win, &sizehints ); changes.x = 0; changes.y = 0; changes.width = vid.width; changes.height = vid.height; changes.stack_mode = TopIf; XConfigureWindow(x_disp, x_win, CWX | CWY | CWWidth | CWHeight | CWStackMode, &changes); } } // map the window XMapWindow(x_disp, x_win); // wait for first exposure event { XEvent event; do { XNextEvent(x_disp, &event); if (event.type == Expose && !event.xexpose.count) oktodraw = true; } while (!oktodraw); } // now safe to draw gl_cx = glXCreateContext( x_disp, x_visinfo, 0, True ); if (!glXMakeCurrent( x_disp, x_win, gl_cx )) Sys_Error( "Can't make window current to context\n" ); // even if MITSHM is available, make sure it's a local connection #if 0 // This is messing up the DISPLAY environment variable so can't close and // reopen the window (it lops off the :0.0)... if (XShmQueryExtension(x_disp)) { char *displayname; doShm = true; displayname = (char *) getenv("DISPLAY"); if (displayname) { char *d = displayname; while (*d && (*d != ':')) d++; if (*d) *d = 0; if (!(!strcasecmp(displayname, "unix") || !*displayname)) doShm = false; } } #endif #if 0 if (doShm) { x_shmeventtype = XShmGetEventBase(x_disp) + ShmCompletion; ResetSharedFrameBuffers(); } else ResetFrameBuffer(); #endif current_framebuffer = 0; /* vid.rowbytes = x_framebuffer[0]->bytes_per_line; */ /* vid.buffer = x_framebuffer[0]->data; */ // XSynchronize(x_disp, False); X11_active = true; return true; } /*****************************************************************************/ int XLateKey(XKeyEvent *ev) { int key; char buf[64]; KeySym keysym; key = 0; XLookupString(ev, buf, sizeof buf, &keysym, 0); switch(keysym) { case XK_KP_Page_Up: key = K_KP_PGUP; break; case XK_Page_Up: key = K_PGUP; break; case XK_KP_Page_Down: key = K_KP_PGDN; break; case XK_Page_Down: key = K_PGDN; break; case XK_KP_Home: key = K_KP_HOME; break; case XK_Home: key = K_HOME; break; case XK_KP_End: key = K_KP_END; break; case XK_End: key = K_END; break; case XK_KP_Left: key = K_KP_LEFTARROW; break; case XK_Left: key = K_LEFTARROW; break; case XK_KP_Right: key = K_KP_RIGHTARROW; break; case XK_Right: key = K_RIGHTARROW; break; case XK_KP_Down: key = K_KP_DOWNARROW; break; case XK_Down: key = K_DOWNARROW; break; case XK_KP_Up: key = K_KP_UPARROW; break; case XK_Up: key = K_UPARROW; break; case XK_Escape: key = K_ESCAPE; break; case XK_KP_Enter: key = K_KP_ENTER; break; case XK_Return: key = K_ENTER; break; case XK_Tab: key = K_TAB; break; case XK_F1: key = K_F1; break; case XK_F2: key = K_F2; break; case XK_F3: key = K_F3; break; case XK_F4: key = K_F4; break; case XK_F5: key = K_F5; break; case XK_F6: key = K_F6; break; case XK_F7: key = K_F7; break; case XK_F8: key = K_F8; break; case XK_F9: key = K_F9; break; case XK_F10: key = K_F10; break; case XK_F11: key = K_F11; break; case XK_F12: key = K_F12; break; case XK_BackSpace: key = K_BACKSPACE; break; case XK_KP_Delete: key = K_KP_DEL; break; case XK_Delete: key = K_DEL; break; case XK_Pause: key = K_PAUSE; break; case XK_Shift_L: case XK_Shift_R: key = K_SHIFT; break; case XK_Execute: case XK_Control_L: case XK_Control_R: key = K_CTRL; break; case XK_Alt_L: case XK_Meta_L: case XK_Alt_R: case XK_Meta_R: key = K_ALT; break; case XK_KP_Begin: key = K_KP_5; break; case XK_Insert:key = K_INS; break; case XK_KP_Insert: key = K_KP_INS; break; case XK_KP_Multiply: key = '*'; break; case XK_KP_Add: key = K_KP_PLUS; break; case XK_KP_Subtract: key = K_KP_MINUS; break; case XK_KP_Divide: key = K_KP_SLASH; break; #if 0 case 0x021: key = '1';break;/* [!] */ case 0x040: key = '2';break;/* [@] */ case 0x023: key = '3';break;/* [#] */ case 0x024: key = '4';break;/* [$] */ case 0x025: key = '5';break;/* [%] */ case 0x05e: key = '6';break;/* [^] */ case 0x026: key = '7';break;/* [&] */ case 0x02a: key = '8';break;/* [*] */ case 0x028: key = '9';;break;/* [(] */ case 0x029: key = '0';break;/* [)] */ case 0x05f: key = '-';break;/* [_] */ case 0x02b: key = '=';break;/* [+] */ case 0x07c: key = '\'';break;/* [|] */ case 0x07d: key = '[';break;/* [}] */ case 0x07b: key = ']';break;/* [{] */ case 0x022: key = '\'';break;/* ["] */ case 0x03a: key = ';';break;/* [:] */ case 0x03f: key = '/';break;/* [?] */ case 0x03e: key = '.';break;/* [>] */ case 0x03c: key = ',';break;/* [<] */ #endif default: key = *(unsigned char*)buf; if (key >= 'A' && key <= 'Z') key = key - 'A' + 'a'; break; } return key; } void GetEvent(void) { XEvent x_event; int b; XNextEvent(x_disp, &x_event); switch(x_event.type) { case KeyPress: keyq[keyq_head].key = XLateKey(&x_event.xkey); keyq[keyq_head].down = true; keyq_head = (keyq_head + 1) & 63; break; case KeyRelease: keyq[keyq_head].key = XLateKey(&x_event.xkey); keyq[keyq_head].down = false; keyq_head = (keyq_head + 1) & 63; break; case MotionNotify: if (_windowed_mouse->value) { mx += ((int)x_event.xmotion.x - (int)(vid.width/2)); my += ((int)x_event.xmotion.y - (int)(vid.height/2)); /* move the mouse to the window center again */ XSelectInput(x_disp,x_win, STD_EVENT_MASK & ~PointerMotionMask); XWarpPointer(x_disp,None,x_win,0,0,0,0, (vid.width/2),(vid.height/2)); XSelectInput(x_disp,x_win, STD_EVENT_MASK); } else { mx = ((int)x_event.xmotion.x - (int)p_mouse_x); my = ((int)x_event.xmotion.y - (int)p_mouse_y); p_mouse_x=x_event.xmotion.x; p_mouse_y=x_event.xmotion.y; } break; case ButtonPress: b=-1; if (x_event.xbutton.button == 1) b = 0; else if (x_event.xbutton.button == 2) b = 2; else if (x_event.xbutton.button == 3) b = 1; if (b>=0) mouse_buttonstate |= 1<=0) mouse_buttonstate &= ~(1<value) { old_windowed_mouse = _windowed_mouse->value; if (!_windowed_mouse->value) { /* ungrab the pointer */ XUngrabPointer(x_disp,CurrentTime); } else { /* grab the pointer */ XGrabPointer(x_disp,x_win,True,0,GrabModeAsync, GrabModeAsync,x_win,None,CurrentTime); } } } /*****************************************************************************/ /*****************************************************************************/ /* KEYBOARD */ /*****************************************************************************/ Key_Event_fp_t Key_Event_fp; void KBD_Init(Key_Event_fp_t fp) { _windowed_mouse = ri.Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE); Key_Event_fp = fp; } void KBD_Update(void) { // get events from x server if (x_disp) { while (XPending(x_disp)) GetEvent(); while (keyq_head != keyq_tail) { Key_Event_fp(keyq[keyq_tail].key, keyq[keyq_tail].down); keyq_tail = (keyq_tail + 1) & 63; } } } void KBD_Close(void) { } static void Force_CenterView_f (void) { in_state->viewangles[PITCH] = 0; } static void RW_IN_MLookDown (void) { mlooking = true; } static void RW_IN_MLookUp (void) { mlooking = false; in_state->IN_CenterView_fp (); } void RW_IN_Init(in_state_t *in_state_p) { int mtype; int i; fprintf(stderr, "GL RW_IN_Init\n"); in_state = in_state_p; // mouse variables _windowed_mouse = ri.Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE); m_filter = ri.Cvar_Get ("m_filter", "0", 0); in_mouse = ri.Cvar_Get ("in_mouse", "1", CVAR_ARCHIVE); freelook = ri.Cvar_Get( "freelook", "0", 0 ); lookstrafe = ri.Cvar_Get ("lookstrafe", "0", 0); sensitivity = ri.Cvar_Get ("sensitivity", "3", 0); m_pitch = ri.Cvar_Get ("m_pitch", "0.022", 0); m_yaw = ri.Cvar_Get ("m_yaw", "0.022", 0); m_forward = ri.Cvar_Get ("m_forward", "1", 0); m_side = ri.Cvar_Get ("m_side", "0.8", 0); ri.Cmd_AddCommand ("+mlook", RW_IN_MLookDown); ri.Cmd_AddCommand ("-mlook", RW_IN_MLookUp); ri.Cmd_AddCommand ("force_centerview", Force_CenterView_f); mouse_x = mouse_y = 0.0; mouse_avail = true; } void RW_IN_Shutdown(void) { mouse_avail = false; ri.Cmd_RemoveCommand ("force_centerview"); ri.Cmd_RemoveCommand ("+mlook"); ri.Cmd_RemoveCommand ("-mlook"); } /* =========== IN_Commands =========== */ void RW_IN_Commands (void) { int i; if (!mouse_avail) return; for (i=0 ; i<3 ; i++) { if ( (mouse_buttonstate & (1<Key_Event_fp (K_MOUSE1 + i, true); if ( !(mouse_buttonstate & (1<Key_Event_fp (K_MOUSE1 + i, false); } mouse_oldbuttonstate = mouse_buttonstate; } /* =========== IN_Move =========== */ void RW_IN_Move (usercmd_t *cmd) { if (!mouse_avail) return; if (m_filter->value) { mouse_x = (mx + old_mouse_x) * 0.5; mouse_y = (my + old_mouse_y) * 0.5; } else { mouse_x = mx; mouse_y = my; } old_mouse_x = mx; old_mouse_y = my; if (!mouse_x && !mouse_y) return; mouse_x *= sensitivity->value; mouse_y *= sensitivity->value; // add mouse X/Y movement to cmd if ( (*in_state->in_strafe_state & 1) || (lookstrafe->value && mlooking )) cmd->sidemove += m_side->value * mouse_x; else in_state->viewangles[YAW] -= m_yaw->value * mouse_x; if ( (mlooking || freelook->value) && !(*in_state->in_strafe_state & 1)) { in_state->viewangles[PITCH] += m_pitch->value * mouse_y; } else { cmd->forwardmove -= m_forward->value * mouse_y; } mx = my = 0; } void RW_IN_Frame (void) { } void RW_IN_Activate(void) { } //=============================================================================== /* ================ Sys_MakeCodeWriteable ================ */ void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length) { int r; unsigned long addr; int psize = getpagesize(); addr = (startaddr & ~(psize-1)) - psize; // fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr, // addr, startaddr+length, length); r = mprotect((char*)addr, length + startaddr - addr + psize, 7); if (r < 0) Sys_Error("Protection change failed\n"); }