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

*/
// vid_sunxil.c -- uses X to setup windows and XIL to copy images (scaled as needed)
// to screen

#define _BSD
#define BYTE_DEFINED 1

#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 "quakedef.h"
#include "d_local.h"

#define MIN_WIDTH 320
#define MIN_HEIGHT 200

cvar_t _windowed_mouse = {"_windowed_mouse","0", true};
cvar_t m_filter = {"m_filter","0", true};
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 = {"pixel_multiply", "2", true};
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;

/*
================
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 = (int)pixel_multiply.value) != 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);

Cvar_RegisterVariable (&pixel_multiply);

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.value < 1 || pixel_multiply.value > 4)
Cvar_SetValue("pixel_multiply", 2);
current_pixel_multiply = pixel_multiply.value;

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.value) {
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.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);
}
}
}

// 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 Sys_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)
{
Cvar_RegisterVariable (&_windowed_mouse);
Cvar_RegisterVariable (&m_filter);
   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.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) || (lookstrafe.value && (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) { }
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