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- /*
- ** RW_X11.C
- **
- ** This file contains ALL Linux specific stuff having to do with the
- ** software refresh. When a port is being made the following functions
- ** must be implemented by the port:
- **
- ** SWimp_EndFrame
- ** SWimp_Init
- ** SWimp_InitGraphics
- ** SWimp_SetPalette
- ** SWimp_Shutdown
- ** SWimp_SwitchFullscreen
- */
- #include <ctype.h>
- #include <sys/time.h>
- #include <sys/types.h>
- #include <unistd.h>
- #include <signal.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <sys/ipc.h>
- #include <sys/shm.h>
- #include <X11/Xlib.h>
- #include <X11/Xutil.h>
- #include <X11/Xatom.h>
- #include <X11/keysym.h>
- #include <X11/extensions/XShm.h>
- #include "../ref_soft/r_local.h"
- #include "../client/keys.h"
- #include "../linux/rw_linux.h"
- /*****************************************************************************/
- 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 XImage *x_image;
- #define STD_EVENT_MASK (StructureNotifyMask | KeyPressMask \
- | KeyReleaseMask | ExposureMask | PointerMotionMask | \
- ButtonPressMask | ButtonReleaseMask)
- static int x_shmeventtype;
- //static XShmSegmentInfo x_shminfo;
- static qboolean oktodraw = false;
- static qboolean X11_active = false;
- int XShmQueryExtension(Display *);
- int XShmGetEventBase(Display *);
- int current_framebuffer;
- static XImage *x_framebuffer[2] = { 0, 0 };
- static XShmSegmentInfo x_shminfo[2];
- struct
- {
- int key;
- int down;
- } keyq[64];
- int keyq_head=0;
- int keyq_tail=0;
- 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 int mx, my;
- 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;
- 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;
- 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;
- 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;
- }
- /*
- ===========
- IN_Commands
- ===========
- */
- void RW_IN_Commands (void)
- {
- int i;
-
- if (!mouse_avail)
- return;
-
- for (i=0 ; i<3 ; i++) {
- if ( (mouse_buttonstate & (1<<i)) && !(mouse_oldbuttonstate & (1<<i)) )
- in_state->Key_Event_fp (K_MOUSE1 + i, true);
- if ( !(mouse_buttonstate & (1<<i)) && (mouse_oldbuttonstate & (1<<i)) )
- in_state->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)
- {
- }
- /*****************************************************************************/
- static PIXEL st2d_8to16table[256];
- static int shiftmask_fl=0;
- static long r_shift,g_shift,b_shift;
- static unsigned long r_mask,g_mask,b_mask;
- void shiftmask_init()
- {
- unsigned int x;
- r_mask=x_vis->red_mask;
- g_mask=x_vis->green_mask;
- b_mask=x_vis->blue_mask;
- for(r_shift=-8,x=1;x<r_mask;x=x<<1)r_shift++;
- for(g_shift=-8,x=1;x<g_mask;x=x<<1)g_shift++;
- for(b_shift=-8,x=1;x<b_mask;x=x<<1)b_shift++;
- shiftmask_fl=1;
- }
- PIXEL xlib_rgb(int r,int g,int b)
- {
- PIXEL p;
- if(shiftmask_fl==0) shiftmask_init();
- p=0;
- if(r_shift>0) {
- p=(r<<(r_shift))&r_mask;
- } else if(r_shift<0) {
- p=(r>>(-r_shift))&r_mask;
- } else p|=(r&r_mask);
- if(g_shift>0) {
- p|=(g<<(g_shift))&g_mask;
- } else if(g_shift<0) {
- p|=(g>>(-g_shift))&g_mask;
- } else p|=(g&g_mask);
- if(b_shift>0) {
- p|=(b<<(b_shift))&b_mask;
- } else if(b_shift<0) {
- p|=(b>>(-b_shift))&b_mask;
- } else p|=(b&b_mask);
- return p;
- }
- void st2_fixup( XImage *framebuf, int x, int y, int width, int height)
- {
- int xi,yi;
- unsigned char *src;
- PIXEL *dest;
- if( (x<0)||(y<0) )return;
- for (yi = y; yi < (y+height); yi++) {
- src = &framebuf->data [yi * framebuf->bytes_per_line];
- dest = (PIXEL*)src;
- for(xi = (x+width-1); xi >= x; xi -= 8) {
- dest[xi ] = st2d_8to16table[src[xi ]];
- dest[xi-1] = st2d_8to16table[src[xi-1]];
- dest[xi-2] = st2d_8to16table[src[xi-2]];
- dest[xi-3] = st2d_8to16table[src[xi-3]];
- dest[xi-4] = st2d_8to16table[src[xi-4]];
- dest[xi-5] = st2d_8to16table[src[xi-5]];
- dest[xi-6] = st2d_8to16table[src[xi-6]];
- dest[xi-7] = st2d_8to16table[src[xi-7]];
- }
- }
- }
- // ========================================================================
- // 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;
- }
- void ResetFrameBuffer(void)
- {
- int mem;
- int pwidth;
- if (x_framebuffer[0])
- {
- free(x_framebuffer[0]->data);
- free(x_framebuffer[0]);
- }
- // alloc an extra line in case we want to wrap, and allocate the z-buffer
- pwidth = x_visinfo->depth / 8;
- if (pwidth == 3) pwidth = 4;
- mem = ((vid.width*pwidth+7)&~7) * vid.height;
- x_framebuffer[0] = XCreateImage( x_disp,
- x_vis,
- x_visinfo->depth,
- ZPixmap,
- 0,
- malloc(mem),
- vid.width, vid.height,
- 32,
- 0);
- if (!x_framebuffer[0])
- Sys_Error("VID: XCreateImage failed\n");
- vid.buffer = (byte*) (x_framebuffer[0]);
- }
- void ResetSharedFrameBuffers(void)
- {
- int size;
- int key;
- int minsize = getpagesize();
- int frm;
- for (frm=0 ; frm<2 ; frm++)
- {
- // free up old frame buffer memory
- if (x_framebuffer[frm])
- {
- XShmDetach(x_disp, &x_shminfo[frm]);
- free(x_framebuffer[frm]);
- shmdt(x_shminfo[frm].shmaddr);
- }
- // create the image
- x_framebuffer[frm] = XShmCreateImage( x_disp,
- x_vis,
- x_visinfo->depth,
- ZPixmap,
- 0,
- &x_shminfo[frm],
- vid.width,
- vid.height );
- // grab shared memory
- size = x_framebuffer[frm]->bytes_per_line
- * x_framebuffer[frm]->height;
- if (size < minsize)
- Sys_Error("VID: Window must use at least %d bytes\n", minsize);
- key = random();
- x_shminfo[frm].shmid = shmget((key_t)key, size, IPC_CREAT|0777);
- if (x_shminfo[frm].shmid==-1)
- Sys_Error("VID: Could not get any shared memory\n");
- // attach to the shared memory segment
- x_shminfo[frm].shmaddr =
- (void *) shmat(x_shminfo[frm].shmid, 0, 0);
- ri.Con_Printf(PRINT_ALL,
- "MITSHM shared memory (id=%d, addr=0x%lx)\n",
- x_shminfo[frm].shmid,
- (long) x_shminfo[frm].shmaddr);
- x_framebuffer[frm]->data = x_shminfo[frm].shmaddr;
- // get the X server to attach to it
- if (!XShmAttach(x_disp, &x_shminfo[frm]))
- Sys_Error("VID: XShmAttach() failed\n");
- XSync(x_disp, 0);
- shmctl(x_shminfo[frm].shmid, IPC_RMID, 0);
- }
- }
- // ========================================================================
- // Tragic death handler
- // ========================================================================
- void TragicDeath(int signal_num)
- {
- XAutoRepeatOn(x_disp);
- XCloseDisplay(x_disp);
- Sys_Error("This death brought to you by the number %d\n", signal_num);
- }
- 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<<b;
- break;
- case ButtonRelease:
- 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<<b);
- break;
-
- case ConfigureNotify:
- config_notify_width = x_event.xconfigure.width;
- config_notify_height = x_event.xconfigure.height;
- config_notify = 1;
- break;
- default:
- if (doShm && x_event.type == x_shmeventtype)
- oktodraw = true;
- }
-
- if (old_windowed_mouse != _windowed_mouse->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);
- }
- }
- }
- /*****************************************************************************/
- /*
- ** SWimp_Init
- **
- ** This routine is responsible for initializing the implementation
- ** specific stuff in a software rendering subsystem.
- */
- int SWimp_Init( void *hInstance, void *wndProc )
- {
- // open the display
- x_disp = XOpenDisplay(0);
- 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");
- }
- // catch signals so i can turn on auto-repeat
- {
- struct sigaction sa;
- sigaction(SIGINT, 0, &sa);
- sa.sa_handler = TragicDeath;
- sigaction(SIGINT, &sa, 0);
- sigaction(SIGTERM, &sa, 0);
- }
- return true;
- }
- /*
- ** SWimp_InitGraphics
- **
- ** This initializes the software refresh's implementation specific
- ** graphics subsystem. In the case of Windows it creates DIB or
- ** DDRAW surfaces.
- **
- ** The necessary width and height parameters are grabbed from
- ** vid.width and vid.height.
- */
- static qboolean SWimp_InitGraphics( qboolean fullscreen )
- {
- int pnum, i;
- XVisualInfo template;
- int num_visuals;
- int template_mask;
- srandom(getpid());
- // free resources in use
- SWimp_Shutdown ();
- // let the sound and input subsystems know about the new window
- ri.Vid_NewWindow (vid.width, vid.height);
- 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 <id#>\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 = XGetVisualInfo(x_disp, template_mask, &template, &num_visuals);
- if (num_visuals > 1)
- {
- printf("Found more than one visual id at depth %d:\n", template.depth);
- for (i=0 ; i<num_visuals ; i++)
- printf(" -visualid %d\n", (int)(x_visinfo[i].visualid));
- }
- else if (num_visuals == 0)
- {
- if (template_mask == VisualIDMask)
- Sys_Error("VID: Bad visual id %d\n", template.visualid);
- else
- Sys_Error("VID: No visuals at depth %d\n", template.depth);
- }
- #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;
-
- tmpcmap = XCreateColormap(x_disp, XRootWindow(x_disp,
- x_visinfo->screen), 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,
- XRootWindow(x_disp, x_visinfo->screen),
- 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 );
- }
- // 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
- // even if MITSHM is available, make sure it's a local connection
- 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;
- }
- }
- if (doShm)
- {
- x_shmeventtype = XShmGetEventBase(x_disp) + ShmCompletion;
- ResetSharedFrameBuffers();
- }
- else
- ResetFrameBuffer();
- 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;
- }
- /*
- ** SWimp_EndFrame
- **
- ** This does an implementation specific copy from the backbuffer to the
- ** front buffer. In the Win32 case it uses BitBlt or BltFast depending
- ** on whether we're using DIB sections/GDI or DDRAW.
- */
- void SWimp_EndFrame (void)
- {
- // if the window changes dimension, skip this frame
- #if 0
- if (config_notify)
- {
- fprintf(stderr, "config notify\n");
- config_notify = 0;
- vid.width = config_notify_width & ~7;
- vid.height = config_notify_height;
- if (doShm)
- ResetSharedFrameBuffers();
- else
- ResetFrameBuffer();
- vid.rowbytes = x_framebuffer[0]->bytes_per_line;
- vid.buffer = x_framebuffer[current_framebuffer]->data;
- vid.recalc_refdef = 1; // force a surface cache flush
- Con_CheckResize();
- Con_Clear_f();
- return;
- }
- #endif
- if (doShm)
- {
- if (x_visinfo->depth != 8)
- st2_fixup( x_framebuffer[current_framebuffer],
- 0, 0, vid.width, vid.height);
- if (!XShmPutImage(x_disp, x_win, x_gc,
- x_framebuffer[current_framebuffer], 0, 0,
- 0, 0, vid.width, vid.height, True))
- Sys_Error("VID_Update: XShmPutImage failed\n");
- oktodraw = false;
- while (!oktodraw)
- GetEvent();
- current_framebuffer = !current_framebuffer;
- vid.buffer = x_framebuffer[current_framebuffer]->data;
- XSync(x_disp, False);
- }
- else
- {
- if (x_visinfo->depth != 8)
- st2_fixup( x_framebuffer[current_framebuffer],
- 0, 0, vid.width, vid.height);
- XPutImage(x_disp, x_win, x_gc, x_framebuffer[0],
- 0, 0, 0, 0, vid.width, vid.height);
- XSync(x_disp, False);
- }
- }
- /*
- ** SWimp_SetMode
- */
- rserr_t SWimp_SetMode( int *pwidth, int *pheight, int mode, qboolean fullscreen )
- {
- rserr_t retval = rserr_ok;
- ri.Con_Printf (PRINT_ALL, "setting mode %d:", mode );
- if ( !ri.Vid_GetModeInfo( pwidth, pheight, mode ) )
- {
- ri.Con_Printf( PRINT_ALL, " invalid mode\n" );
- return rserr_invalid_mode;
- }
- ri.Con_Printf( PRINT_ALL, " %d %d\n", *pwidth, *pheight);
- if ( !SWimp_InitGraphics( false ) ) {
- // failed to set a valid mode in windowed mode
- return rserr_invalid_mode;
- }
- R_GammaCorrectAndSetPalette( ( const unsigned char * ) d_8to24table );
- return retval;
- }
- /*
- ** SWimp_SetPalette
- **
- ** System specific palette setting routine. A NULL palette means
- ** to use the existing palette. The palette is expected to be in
- ** a padded 4-byte xRGB format.
- */
- void SWimp_SetPalette( const unsigned char *palette )
- {
- int i;
- XColor colors[256];
- if (!X11_active)
- return;
- if ( !palette )
- palette = ( const unsigned char * ) sw_state.currentpalette;
-
- for(i=0;i<256;i++)
- st2d_8to16table[i]= xlib_rgb(palette[i*4],
- palette[i*4+1],palette[i*4+2]);
- if (x_visinfo->class == PseudoColor && x_visinfo->depth == 8)
- {
- for (i=0 ; i<256 ; i++)
- {
- colors[i].pixel = i;
- colors[i].flags = DoRed|DoGreen|DoBlue;
- colors[i].red = palette[i*4] * 257;
- colors[i].green = palette[i*4+1] * 257;
- colors[i].blue = palette[i*4+2] * 257;
- }
- XStoreColors(x_disp, x_cmap, colors, 256);
- }
- }
- /*
- ** SWimp_Shutdown
- **
- ** System specific graphics subsystem shutdown routine. Destroys
- ** DIBs or DDRAW surfaces as appropriate.
- */
- void SWimp_Shutdown( void )
- {
- int i;
- if (!X11_active)
- return;
- if (doShm) {
- for (i = 0; i < 2; i++)
- if (x_framebuffer[i]) {
- XShmDetach(x_disp, &x_shminfo[i]);
- free(x_framebuffer[i]);
- shmdt(x_shminfo[i].shmaddr);
- x_framebuffer[i] = NULL;
- }
- } else if (x_framebuffer[0]) {
- free(x_framebuffer[0]->data);
- free(x_framebuffer[0]);
- x_framebuffer[0] = NULL;
- }
- XDestroyWindow( x_disp, x_win );
- XAutoRepeatOn(x_disp);
- // XCloseDisplay(x_disp);
- X11_active = false;
- }
- /*
- ** SWimp_AppActivate
- */
- void SWimp_AppActivate( qboolean active )
- {
- }
- //===============================================================================
- /*
- ================
- 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");
- }
- /*****************************************************************************/
- /* KEYBOARD */
- /*****************************************************************************/
- Key_Event_fp_t Key_Event_fp;
- void KBD_Init(Key_Event_fp_t fp)
- {
- 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)
- {
- }
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