quakeforge/nq/source/vid_sunxil.c

/*
	vid_sunxil.c

	@description@

	Copyright (C) 1996-1997  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:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <sys/time.h>
#include <sys/types.h>
#include <errno.h>
#include <thread.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 <xil/xil.h>

#include "d_local.h"

#define MIN_WIDTH 320
#define MIN_HEIGHT 200

cvar_t     *_windowed_mouse;
cvar_t     *m_filter;
float       old_windowed_mouse;

// The following X property format is defined in Motif 1.1's
// Xm/MwmUtils.h, but QUAKE should not depend on that header
// file. Note: Motif 1.2 expanded this structure with
// uninteresting fields (to QUAKE) so just stick with the
// smaller Motif 1.1 structure.

#define MWM_HINTS_DECORATIONS   2
typedef struct {
	long        flags;
	long        functions;
	long        decorations;
	long        input_mode;
} MotifWmHints;

#define MAX_COLUMN_SIZE	11

#define MAX_MODEDESCS	(MAX_COLUMN_SIZE*3)

typedef struct {
	int         modenum;
	int         iscur;
	char        desc[256];
} modedesc_t;

extern void M_Menu_Options_f (void);
extern void M_Print (int cx, int cy, char *str);
extern void M_PrintWhite (int cx, int cy, char *str);
extern void M_DrawCharacter (int cx, int line, int num);
extern void M_DrawTransPic (int x, int y, qpic_t *pic);
extern void M_DrawPic (int x, int y, qpic_t *pic);

extern int  sb_updates;

qboolean    mouse_avail;
int         mouse_buttons = 3;
int         mouse_oldbuttonstate;
int         mouse_buttonstate;
float       mouse_x, mouse_y;
float       old_mouse_x, old_mouse_y;
int         p_mouse_x;
int         p_mouse_y;

typedef struct {
	int         input;
	int         output;
} keymap_t;

viddef_t    vid;						// global video state
unsigned short d_8to16table[256];

int         num_shades = 32;

int         d_con_indirect = 0;

int         vid_buffersize;

#define STD_EVENT_MASK \
( \
	StructureNotifyMask | \
	KeyPressMask | \
	KeyReleaseMask | \
	ButtonPressMask | \
	ButtonReleaseMask | \
	ExposureMask | \
	PointerMotionMask | \
	FocusChangeMask \
)

int         VGA_width, VGA_height, VGA_rowbytes, VGA_bufferrowbytes, VGA_planar;
byte       *VGA_pagebase;

qboolean    x_fullscreen = true;
Display    *x_disp = NULL;
int         x_screen, x_screen_width, x_screen_height;
int         x_center_width, x_center_height;
int         x_std_event_mask = STD_EVENT_MASK;
Window      x_win, x_root_win;
qboolean    x_focus = true;
int         global_dx, global_dy;


static Colormap x_cmap;
static GC   x_gc;
static Visual *x_vis;
static XVisualInfo *x_visinfo;
static Atom aHints = NULL;
static Atom aWMDelete = NULL;

static qboolean oktodraw = false;
static qboolean X11_active = false;


static int  verbose = 1;

static byte current_palette[768];

cvar_t     *pixel_multiply;
int         current_pixel_multiply = 2;

#define PM(a) (int)((current_pixel_multiply)?((a)*current_pixel_multiply):(a))
#define MP(a) (int)((current_pixel_multiply)?((a)/current_pixel_multiply):(a))

static int  render_pipeline[2];
static XilSystemState state;
static XilImage display_image = NULL;
static XilImage quake_image = NULL;
static int  use_mt = 0;
static int  count_frames = 0;

void
VID_InitCvars (void)
{
}

/*
================
D_BeginDirectRect
================
*/
void
D_BeginDirectRect (int x, int y, byte * pbitmap, int width, int height)
{
// direct drawing of the "accessing disk" icon isn't supported under Nextstep
}


/*
================
D_EndDirectRect
================
*/
void
D_EndDirectRect (int x, int y, int width, int height)
{
// direct drawing of the "accessing disk" icon isnt supported under Nextstep
}


/*
=================
VID_Gamma_f

Keybinding command
=================
*/

byte        vid_gamma[256];

void
VID_Gamma_f (void)
{

	float       g, f, inf;
	int         i;

	if (Cmd_Argc () == 2) {
		g = Q_atof (Cmd_Argv (1));

		for (i = 0; i < 255; i++) {
			f = pow ((i + 1) / 256.0, g);
			inf = f * 255 + 0.5;
			if (inf < 0)
				inf = 0;
			if (inf > 255)
				inf = 255;
			vid_gamma[i] = inf;
		}

		VID_SetPalette (current_palette);

		vid.recalc_refdef = 1;			// force a surface cache flush
	}

}

qboolean
CheckPixelMultiply (void)
{
	int         m;
	int         w, h;
	XWindowAttributes wattr;
	XWindowChanges chg;
	unsigned int value_mask;
	int         old_pixel;

	if ((m = pixel_multiply->int_val) != current_pixel_multiply) {
		if (m < 1)
			m = 1;
		if (m > 4)
			m = 4;

		old_pixel = current_pixel_multiply;
		current_pixel_multiply = m;
		Cvar_SetValue (pixel_multiply, m);

		if (XGetWindowAttributes (x_disp, x_win, &wattr) == 0)
			return true;				// ???

		memset (&chg, 0, sizeof (chg));
		chg.width = wattr.width / old_pixel * current_pixel_multiply;
		chg.height = wattr.height / old_pixel * current_pixel_multiply;

		if (chg.width < MIN_WIDTH * current_pixel_multiply)
			chg.width = MIN_WIDTH * current_pixel_multiply;
		if (chg.height < MIN_HEIGHT * current_pixel_multiply)
			chg.height = MIN_HEIGHT * current_pixel_multiply;

		XConfigureWindow (x_disp, x_win, CWWidth | CWHeight, &chg);

		vid.width = MP (wattr.width) & ~3;
		vid.height = MP (wattr.height);

		if (vid.width < 320)
			vid.width = 320;
		if (vid.height < 200)
			vid.height = 200;
		VID_ResetFramebuffer ();

		return true;
	}
	return false;
}

// ========================================================================
// 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);
}

// ========================================================================
// 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
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);
}

void
VID_Init (unsigned char *palette)
{

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

	int         desired_width = 320, desired_height = 200;

	Cmd_AddCommand ("gamma", VID_Gamma_f, "No Description");

	pixel_multiply = Cvar_Get ("pixel_multiply", "2", CVAR_ARCHIVE, "None");

	if (pipe (render_pipeline) < 0)
		Sys_Error ("VID_Init: pipe");

	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");
	count_frames = COM_CheckParm ("-count_frames");

//
// 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 = DefaultScreen (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 = DefaultRootWindow (x_disp);

	// XAutoRepeatOff(x_disp);

// for debugging only
	if (verbose)
		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");
		desired_width = Q_atoi (com_argv[pnum + 1]);
		desired_height = Q_atoi (com_argv[pnum + 2]);
		if (desired_width < 1 || desired_height < 1)
			Sys_Error ("VID: Bad window width/height\n");
	}

	template_mask = VisualScreenMask;	// make sure we get the right one 
	template.screen = x_screen;
//
// 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;
	} else {
		// If not specified, find an 8 bit visual since others don't work
//      template.depth = 8;
//      template_mask |= VisualDepthMask;
		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 ("	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);
	}

	x_vis = x_visinfo->visual;
//
// See if we're going to do pixel multiply
//
	if (pixel_multiply->int_val < 1 || pixel_multiply->int_val > 4)
		Cvar_SetValue (pixel_multiply, 2);
	current_pixel_multiply = pixel_multiply->int_val;

	w = 320 * current_pixel_multiply;	// minimum width
	h = 200 * current_pixel_multiply;	// minimum height
	if (desired_width < w)
		desired_width = w;
	if (desired_height < h)
		desired_height = h;

	vid.width = MP (desired_width);
	vid.height = MP (desired_height);

	// 
	// patch things up so game doesn't fail if window is too small
	// 

	if (vid.width < 320)
		vid.width = 320;
	if (vid.height < 200)
		vid.height = 200;

//
// see if we're going to use threads
//
	if (((sysconf (_SC_NPROCESSORS_ONLN) > 1) || COM_CheckParm ("-mt")) &&
		(COM_CheckParm ("-no_mt") == 0)) {
		use_mt = 1;
		printf ("VID: Using multiple threads!\n");
	}
// 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
							   desired_width, desired_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");

// 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);
	XSync (x_disp, True);				/* wait for map */
//
// wait for first exposure event
//
	{
		XEvent      event;

		do {
			XNextEvent (x_disp, &event);
			if (event.type == Expose && !event.xexpose.count)
				oktodraw = true;
		} while (!oktodraw);
	}
//
// initialize XIL
//

	state = xil_open ();

	if (state == NULL) {
		// 
		// XIL's default error handler will print an error msg on stderr
		// 
		Sys_Error ("xil_open failed\n");
	}

	X11_active = true;

	VID_ResetFramebuffer ();

	D_InitCaches (surfcache, sizeof (surfcache));

	vid_menudrawfn = VID_MenuDraw;
	vid_menukeyfn = VID_MenuKey;
}

VID_ResetFramebuffer ()
{
	XilMemoryStorage storage;

	if (use_mt) {
		VID_ResetFramebuffer_MT ();
		return;
	}
//printf("VID_ResetFramebuffer: vid.width %d, vid.height %d\n", vid.width, vid.height);

	xil_destroy (display_image);

	xil_destroy (quake_image);

	display_image = xil_create_from_window (state, x_disp, x_win);
	quake_image = xil_create (state, vid.width, vid.height, 1, XIL_BYTE);

	xil_export (quake_image);

	if (xil_get_memory_storage (quake_image, &storage) == FALSE)
		Sys_Error ("xil_get_memory_storage");

	xil_import (quake_image, TRUE);
	xil_export (quake_image);

	if (xil_get_memory_storage (quake_image, &storage) == FALSE)
		Sys_Error ("xil_get_memory_storage");

	vid.rowbytes = storage.byte.scanline_stride;
	vid.buffer = storage.byte.data;
	vid.conbuffer = vid.buffer;
	vid.conrowbytes = vid.rowbytes;
	vid.conwidth = vid.width;
	vid.conheight = vid.height;

	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.recalc_refdef = 1;				// force a surface cache flush

	free (d_pzbuffer);

	d_pzbuffer =
		malloc (PM (vid.width) * PM (vid.height) * sizeof (*d_pzbuffer));
	// Hunk_HighAllocName(PM(vid.width)*PM(vid.height)*sizeof(*d_pzbuffer),"zbuff");
}

VID_ResetFramebuffer_MT ()
{
	XilMemoryStorage storage;
	XilImage    drain_renderpipeline ();
	XilImage    old_display_image;

	void       *update_thread ();

	printf ("VID_ResetFramebuffer: vid.width %d, vid.height %d\n", vid.width,
			vid.height);

	old_display_image = display_image;

	display_image = xil_create_from_window (state, x_disp, x_win);

	if (quake_image == NULL)
		if (thr_create (NULL, NULL, update_thread, NULL, THR_NEW_LWP, NULL) !=
			0) Sys_Error ("VID: thr_create");

	quake_image = drain_renderpipeline (quake_image);

	xil_destroy (old_display_image);

	free (d_pzbuffer);

	d_pzbuffer =
		malloc (PM (vid.width) * PM (vid.height) * sizeof (*d_pzbuffer));
}

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

void
VID_SetPalette (unsigned char *palette)
{

	int         i;
	XColor      colors[256];

	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)
{
	X11_active = false;
	Con_Printf ("VID_Shutdown\n");
	// XAutoRepeatOn(x_disp);
	xil_destroy (display_image);
	xil_destroy (quake_image);
	display_image = NULL;
	quake_image = NULL;
	XCloseDisplay (x_disp);
}

int
XLateKey (XKeyEvent * ev)
{

	int         key;
	char        buf[64];
	KeySym      keysym;

	XLookupString (ev, buf, sizeof buf, &keysym, 0);

	switch (keysym) {
		case XK_Page_Up:
		key = K_PGUP;
		break;
		case XK_Page_Down:
		key = K_PGDN;
		break;
		case XK_Home:
		key = K_HOME;
		break;
		case XK_End:
		key = K_END;
		break;
		case XK_Left:
		key = K_LEFTARROW;
		break;
		case XK_Right:
		key = K_RIGHTARROW;
		break;
		case XK_Down:
		key = K_DOWNARROW;
		break;
		case XK_Up:
		key = K_UPARROW;
		break;
		case XK_Escape:
		key = K_ESCAPE;
		break;
		case XK_Return:
		key = K_ENTER;
		break;
		case XK_Tab:
		key = K_TAB;
		break;
		case XK_Help:
		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:
		case XK_Delete:
		key = K_BACKSPACE;
		break;
		case XK_Pause:
		key = K_PAUSE;
		break;
		case XK_Shift_L:
		case XK_Shift_R:
		key = K_SHIFT;
		break;
		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;
		// various other keys on the keyboard
		case XK_F27:
		key = K_HOME;
		break;
		case XK_F29:
		key = K_PGUP;
		break;
		case XK_F33:
		key = K_END;
		break;
		case XK_F35:
		key = K_PGDN;
		break;
		case XK_Insert:
		case XK_KP_Insert:
		key = K_INS;
		break;
		case XK_F24:
		key = '-';
		break;
		case XK_KP_Add:
		key = '+';
		break;
		case XK_KP_Subtract:
		key = '-';
		break;
		case XK_F25:
		key = '/';
		break;
		case XK_F26:
		key = '*';
		break;

		default:
		key = (unsigned char) *buf;
		break;
	}

	return key;

}

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;

void
GetEvent (void)
{
	XEvent      x_event;
	int         b;

	XNextEvent (x_disp, &x_event);
	switch (x_event.type) {
		case KeyPress:
		Key_Event (XLateKey (&x_event.xkey), true);
		break;
		case KeyRelease:
		Key_Event (XLateKey (&x_event.xkey), false);
		break;

		case MotionNotify:

		if (_windowed_mouse->int_val) {
			mouse_x = (float) ((int) x_event.xmotion.x - (int) (vid.width / 2));
			mouse_y =
				(float) ((int) x_event.xmotion.y - (int) (vid.height / 2));
			// printf("m: x=%d,y=%d, mx=%3.2f,my=%3.2f\n", 
			// x_event.xmotion.x, x_event.xmotion.y, mouse_x, mouse_y);

			/* move the mouse to the window center again */
			XSelectInput (x_disp, x_win, x_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, x_std_event_mask);
		} else {
			mouse_x = (float) (x_event.xmotion.x - p_mouse_x);
			mouse_y = (float) (x_event.xmotion.y - 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:
		// printf("config notify\n");
		config_notify_width = x_event.xconfigure.width;
		config_notify_height = x_event.xconfigure.height;
		config_notify = 1;
		sb_updates = 0;
		break;
		case Expose:
		sb_updates = 0;
		break;
		case ClientMessage:
		if (x_event.xclient.data.l[0] == aWMDelete)
			Host_Quit_f ();
		break;
#if 0
		case FocusIn:
		printf ("FocusIn...\n");
		x_focus = true;
		break;
		case FocusOut:
		printf ("FocusOut...\n");
		x_focus = false;
		break;
#endif
	}

	if (old_windowed_mouse != _windowed_mouse->int_val) {
		old_windowed_mouse = _windowed_mouse->int_val;

		if (!_windowed_mouse->int_val) {
			/* ungrab the pointer */
			XUngrabPointer (x_disp, CurrentTime);
		} else {
			/* grab the pointer */
			XGrabPointer (x_disp, x_win, True, 0, GrabModeAsync,
						  GrabModeAsync, x_win, None, CurrentTime);
		}
	}
}

// flushes the given rectangles from the view buffer to the screen

void
VID_Update (vrect_t *rects)
{
	void        VID_Update_MT (vrect_t *);


	if (count_frames) {
		static int  count;
		static long long s;
		long long   gethrtime ();

		if (count == 0)
			s = gethrtime ();

		if (count++ == 200) {
			long long   n = gethrtime ();

			count = 1;
			printf ("%lf frames/secs\n", 200.0 / ((double) (n - s) / 1e9));
			s = n;
		}
	}

	if (use_mt) {
		VID_Update_MT (rects);
		return;
	}
	// if the window changes dimension, skip this frame

	if (config_notify) {
		int         w, h;
		XWindowChanges chg;
		unsigned int value_mask;

		w = 320 * current_pixel_multiply;	// minimum width
		h = 200 * current_pixel_multiply;	// minimum height

		if (config_notify_width < w || config_notify_height < h) {
			// We must resize the window
			memset (&chg, 0, sizeof (chg));
			value_mask = 0;
			if (config_notify_width < w) {
				config_notify_width = chg.width = w;
				value_mask |= CWWidth;
			}
			if (config_notify_height < h) {
				config_notify_height = chg.height = h;
				value_mask |= CWHeight;
			}
			if (value_mask)
				XConfigureWindow (x_disp, x_win, value_mask, &chg);
		}

		config_notify = 0;

		vid.width = MP (config_notify_width) & ~3;
		vid.height = MP (config_notify_height);

		if (vid.width < 320)
			vid.width = 320;
		if (vid.height < 200)
			vid.height = 200;

		VID_ResetFramebuffer ();

		return;
	}
	// if pixel multiply changed, skip this frame
	if (CheckPixelMultiply ())
		return;

	while (rects) {						// I've never seen more than one
		// rect?
		XilMemoryStorage storage;

		xil_import (quake_image, TRUE);	// let xil control the image

		if (current_pixel_multiply < 2)
			xil_copy (quake_image, display_image);
		else
			xil_scale (quake_image, display_image, "nearest",
					   (float) current_pixel_multiply,
					   (float) current_pixel_multiply);

		xil_export (quake_image);		// back to quake

		if (xil_get_memory_storage (quake_image, &storage) == FALSE)
			Sys_Error ("xil_get_memory_storage");

		vid.buffer = storage.byte.data;
		vid.conbuffer = vid.buffer;

		rects = rects->pnext;
	}
}

void
VID_Update_MT (vrect_t *rects)
{
	XilImage    sched_update ();

	// if the window changes dimension, skip this frame

	if (config_notify) {
		int         w, h;
		XWindowChanges chg;
		unsigned int value_mask;

		w = 320 * current_pixel_multiply;	// minimum width
		h = 200 * current_pixel_multiply;	// minimum height

		if (config_notify_width < w || config_notify_height < h) {
			// We must resize the window
			memset (&chg, 0, sizeof (chg));
			value_mask = 0;
			if (config_notify_width < w) {
				config_notify_width = chg.width = w;
				value_mask |= CWWidth;
			}
			if (config_notify_height < h) {
				config_notify_height = chg.height = h;
				value_mask |= CWHeight;
			}
			if (value_mask)
				XConfigureWindow (x_disp, x_win, value_mask, &chg);
		}

		config_notify = 0;

		vid.width = MP (config_notify_width) & ~3;
		vid.height = MP (config_notify_height);

		if (vid.width < 320)
			vid.width = 320;
		if (vid.height < 200)
			vid.height = 200;

		VID_ResetFramebuffer_MT ();

		return;
	}
	// if pixel multiply changed, skip this frame
	if (CheckPixelMultiply ())
		return;

	quake_image = sched_update (quake_image);
}

XilImage drain_renderpipeline (XilImage old)
{
	XilImage    new;

	XilMemoryStorage storage;

	if (old)
		if (read (render_pipeline[1], &new, sizeof (new)) != sizeof (new)) {
			Sys_Error ("drain_renderpipeline: read");
			xil_destroy (new);
		}

	xil_destroy (old);


	new = xil_create (state, vid.width, vid.height, 1, XIL_BYTE);

	if (write (render_pipeline[0], &new, sizeof (new)) != sizeof (new))
		Sys_Error ("drain_renderpipeline: write");

	new = xil_create (state, vid.width, vid.height, 1, XIL_BYTE);

	xil_export (new);

	if (xil_get_memory_storage (new, &storage) == FALSE)
		Sys_Error ("xil_get_memory_storage");

	vid.rowbytes = storage.byte.scanline_stride;
	vid.buffer = storage.byte.data;
	vid.conbuffer = vid.buffer;
	vid.conrowbytes = vid.rowbytes;
	vid.conwidth = vid.width;
	vid.conheight = vid.height;

	vid.maxwarpwidth = WARP_WIDTH;
	vid.maxwarpheight = WARP_HEIGHT;
	vid.recalc_refdef = 1;				// force a surface cache flush

	return (new);

}

XilImage sched_update (XilImage image)
{
	XilImage    new;
	XilMemoryStorage storage;

	if (write (render_pipeline[1], &image, sizeof (image)) != sizeof (image))
		Sys_Error ("sched_update:write");

	if (read (render_pipeline[1], &new, sizeof (new)) != sizeof (new))
		Sys_Error ("sched_update:read");

	xil_export (new);

	if (xil_get_memory_storage (new, &storage) == FALSE)
		Sys_Error ("xil_get_memory_storage");

	vid.buffer = storage.byte.data;
	vid.conbuffer = vid.buffer;

	return (new);
}

void       *
update_thread ()
{
	XilImage    image;

	if (!X11_active)
		return;

	while (read (render_pipeline[0], &image, sizeof (image)) == sizeof (image)) {

		xil_import (image, TRUE);		// let xil control the image

		if (!display_image)
			return;

		if (current_pixel_multiply < 2)
			xil_copy (image, display_image);
		else
			xil_scale (image, display_image, "nearest",
					   (float) current_pixel_multiply,
					   (float) current_pixel_multiply);

		if (write (render_pipeline[0], &image, sizeof (image)) !=
			sizeof (image)) Sys_Error ("update_thread: write");
	}
}


static int  dither;

void
VID_DitherOn (void)
{
	if (dither == 0) {
		vid.recalc_refdef = 1;
		dither = 1;
	}
}

void
VID_DitherOff (void)
{
	if (dither) {
		vid.recalc_refdef = 1;
		dither = 0;
	}
}

void
VID_SetDefaultMode (void)
{
}

int
I_OpenWindow (void)
{
	return 0;
}

void
I_EraseWindow (int window)
{

}

void
I_DrawCircle (int window, int x, int y, int r)
{
}

void
I_DisplayWindow (int window)
{
}

void
IN_SendKeyEvents (void)
{
	// get events from x server
	if (x_disp) {
		while (XPending (x_disp))
			GetEvent ();
		while (keyq_head != keyq_tail) {
			Key_Event (keyq[keyq_tail].key, keyq[keyq_tail].down);
			keyq_tail = (keyq_tail + 1) & 63;
		}
	}
}

void
IN_Init (void)
{
	_windowed_mouse = Cvar_Get ("_windowed_mouse", "0", CVAR_ARCHIVE, "None");
	m_filter = Cvar_Get ("m_filter", "0", CVAR_ARCHIVE, "None");
	if (COM_CheckParm ("-nomouse"))
		return;
	mouse_x = mouse_y = 0.0;
	mouse_avail = 1;
}

void
IN_Shutdown (void)
{
	mouse_avail = 0;
}

void
IN_Commands (void)
{
	int         i;

	if (!mouse_avail)
		return;

	for (i = 0; i < mouse_buttons; i++) {
		if ((mouse_buttonstate & (1 << i))
			&& !(mouse_oldbuttonstate & (1 << i)))
			Key_Event (K_MOUSE1 + i, true);

		if (!(mouse_buttonstate & (1 << i))
			&& (mouse_oldbuttonstate & (1 << i)))
			Key_Event (K_MOUSE1 + i, false);
	}
	mouse_oldbuttonstate = mouse_buttonstate;
}

void
IN_Move (usercmd_t *cmd)
{
	if (!mouse_avail)
		return;

	if (m_filter->int_val) {
		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) || (lookstrafe->int_val && (in_mlook.state & 1)))
		cmd->sidemove += m_side->value * mouse_x;
	else
		cl.viewangles[YAW] -= m_yaw->value * mouse_x;
	if (in_mlook.state & 1)
		V_StopPitchDrift ();

	if ((in_mlook.state & 1) && !(in_strafe.state & 1)) {
		cl.viewangles[PITCH] += m_pitch->value * mouse_y;
		if (cl.viewangles[PITCH] > 80)
			cl.viewangles[PITCH] = 80;
		if (cl.viewangles[PITCH] < -70)
			cl.viewangles[PITCH] = -70;
	} 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 VID_UnlockBuffer(void) { }
//void VID_LockBuffer(void) { }


void
VID_HandlePause (qboolean pause)
{
}