vid_sunx.c

quake1 dos源代码最新版本

	int size;
	int key;
	int minsize = getpagesize();
	int frm;

//	if (d_pzbuffer)
//		Z_Free(mainzone, d_pzbuffer);	// 2001-09-20 Enhanced zone handling by Maddes
	d_pzbuffer = Hunk_HighAllocName(vid.width*vid.height*sizeof(*d_pzbuffer),"zbuff");

	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);

		printf("VID: shared memory id=%d, addr=0x%x\n", x_shminfo[frm].shmid,
			(int) 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);

	}

}

void VID_MenuDraw( void )
{
    qpic_t		*p;
    char		*ptr;
    int			i, j, column, row, dup;
    char		temp[100];

    p = Draw_CachePic ("gfx/vidmodes.lmp");
    M_DrawPic ( (320-p->width)/2, 4, p);
	M_Print (4*8, 36 + MAX_COLUMN_SIZE * 8 + 8, "Video mode switching unavailable");
	M_Print (9*8, 36 + MAX_COLUMN_SIZE * 8 + 8*6, "Press any key...");
}

void VID_MenuKey( int key ) { M_Menu_Options_f (); }

// Called at startup to set up translation tables, takes 256 8 bit RGB values
// the palette data will go away after the call, so it must be copied off if
// the video driver will need it again

byte	surfcache[1024*1024];

//
// VID_SetWindowTitle - set the window and icon titles
//

void VID_SetWindowTitle( Window win, char *pszName )
{
    XTextProperty	textprop;
    XWMHints		*wmHints;

    // Setup ICCCM properties
    textprop.value = (unsigned char *)pszName;
    textprop.encoding = XA_STRING;
    textprop.format = 8;
    textprop.nitems = strlen(pszName);
    wmHints = XAllocWMHints();
    wmHints->initial_state = NormalState;
    wmHints->flags = StateHint;
    XSetWMProperties( x_disp, win, &textprop, &textprop,
					  // Only put WM_COMMAND property on first window.
					  com_argv, com_argc, NULL, NULL, NULL );
    XFree( wmHints );

    aWMDelete = XInternAtom( x_disp, "WM_DELETE_WINDOW", False );
    XSetWMProtocols( x_disp, win, &aWMDelete, 1 );
}

//
// VID_FullScreen - open the window in full screen mode
//

qboolean VID_FullScreen( Window win )
{
    MotifWmHints    hints;
    XWindowChanges  changes;

    aHints = XInternAtom( x_disp, "_MOTIF_WM_HINTS", 0 );
    if (aHints == None)
    {
		Con_Printf( "Could not intern X atom for _MOTIF_WM_HINTS." );
		return( false );
    }

    hints.flags = MWM_HINTS_DECORATIONS;
    hints.decorations = 0; // Absolutely no decorations.
    XChangeProperty( x_disp, win, aHints, aHints, 32, PropModeReplace, (unsigned char *)&hints, 4 );

    changes.x = 0;
    changes.y = 0;
    changes.width = x_screen_width;
    changes.height = x_screen_height;
    changes.stack_mode = TopIf;
    XConfigureWindow( x_disp, win, CWX | CWY | CWWidth | CWHeight | CWStackMode, &changes);
    return( true );
}

// 2001-09-18 New cvar system by Maddes (Init)  start
/*
===================
VID_Init_Cvars
===================
*/
void VID_Init_Cvars (void)
{
}
// 2001-09-18 New cvar system by Maddes (Init)  end

void	VID_Init (unsigned char *palette)
{

	int pnum, i;
	XVisualInfo template;
	int num_visuals;
	int template_mask;

	Cmd_AddCommand ("gamma", VID_Gamma_f);
	for (i=0 ; i<256 ; i++)
		vid_gamma[i] = i;

	vid.width = 320;
	vid.height = 200;
	vid.aspect = 1.0;
	vid.numpages = 2;
	vid.colormap = host_colormap;
	vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));
	//vid.cbits = VID_CBITS;
	//vid.grades = VID_GRADES;

	srandom(getpid());

	verbose=COM_CheckParm("-verbose");

// 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");
	}

    x_screen = XDefaultScreen( x_disp );
    x_screen_width = WidthOfScreen( ScreenOfDisplay( x_disp, x_screen ) );
    x_screen_height = HeightOfScreen( ScreenOfDisplay( x_disp, x_screen ) );

	x_center_width  = x_screen_width/2;

	x_center_height = x_screen_height/2;

    Con_Printf( "Using screen %d: %dx%d\n", x_screen, x_screen_width, x_screen_height );

    x_root_win = XRootWindow( x_disp, x_screen );

// catch signals so i can turn on auto-repeat
// we never run full-screen, so no auto-repeat nukage
	if (0)
	{
		struct sigaction sa;
		sigaction(SIGINT, 0, &sa);
		sa.sa_handler = TragicDeath;
		sigaction(SIGINT, &sa, 0);
		sigaction(SIGTERM, &sa, 0);
	}

	//XAutoRepeatOff(x_disp);

// for debugging only
//	XSynchronize(x_disp, True);

// check for command-line window size
	if ((pnum=COM_CheckParm("-winsize")))
	{
		if (pnum >= com_argc-2)
			Sys_Error("VID: -winsize <width> <height>\n");
		vid.width = Q_atoi(com_argv[pnum+1]);
		vid.height = Q_atoi(com_argv[pnum+2]);
		if (!vid.width || !vid.height)
			Sys_Error("VID: Bad window width/height\n");
	}

	template_mask = 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
	{
		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 (verbose)
	{
		printf("Using visualid %d:\n", (int)(x_visinfo->visualid));
		printf("	class %d\n", x_visinfo->class);
		printf("	screen %d\n", x_visinfo->screen);
		printf("	depth %d\n", x_visinfo->depth);
		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);
	}

	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 = x_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 );

		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);
			VID_SetPalette(palette);
			XSetWindowColormap(x_disp, x_win, x_cmap);
		}

	}

    VID_SetWindowTitle( x_win, "Quake" );

// 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;
	vid.conbuffer = x_framebuffer[0]->data;
	vid.conrowbytes = vid.rowbytes;
	vid.conwidth = vid.width;
	vid.conheight = vid.height;

	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;

	D_InitCaches (surfcache, sizeof(surfcache));

//	XSynchronize(x_disp, False);

	vid_menudrawfn = VID_MenuDraw;
	vid_menukeyfn = VID_MenuKey;

}

void VID_ShiftPalette(unsigned char *p)
{
	VID_SetPalette(p);
}

void VID_SetPalette(unsigned char *palette)
{

	int i;
	XColor colors[256];

	for(i=0;i<256;i++) {
		st2d_8to16table[i]= xlib_rgb16(palette[i*3], palette[i*3+1],palette[i*3+2]);
		st2d_8to24table[i]= xlib_rgb24(palette[i*3], palette[i*3+1],palette[i*3+2]);
	}

	if (x_visinfo->class == PseudoColor && x_visinfo->depth == 8)
	{
		if (palette != current_palette)
			memcpy(current_palette, palette, 768);
		for (i=0 ; i<256 ; i++)
		{
			colors[i].pixel = i;
			colors[i].flags = DoRed|DoGreen|DoBlue;
			colors[i].red = vid_gamma[palette[i*3]] * 257;
			colors[i].green = vid_gamma[palette[i*3+1]] * 257;
			colors[i].blue = vid_gamma[palette[i*3+2]] * 257;
		}
		XStoreColors(x_disp, x_cmap, colors, 256);
	}

}

// Called at shutdown

void	VID_Shutdown (void)