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#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xos.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/extensions/XShm.h>
#include <X11/extensions/XTest.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
int format = ZPixmap;
XImage *
CaptRoot(Display * dpy, int screen)
{
unsigned long swaptest = 1;
XColor *colors;
unsigned buffer_size;
int win_name_size;
int header_size;
int ncolors, i;
char *win_name;
Bool got_win_name;
XWindowAttributes win_info;
XImage *image;
int absx, absy, x, y;
unsigned width, height;
int dwidth, dheight;
int bw;
Window dummywin;
#if 0
int transparentOverlays , multiVis;
int numVisuals;
XVisualInfo *pVisuals;
int numOverlayVisuals;
OverlayInfo *pOverlayVisuals;
int numImageVisuals;
XVisualInfo **pImageVisuals;
list_ptr vis_regions; /* list of regions to read from */
list_ptr vis_image_regions ;
Visual vis_h,*vis ;
#endif
int allImage = 0 ;
Window window=RootWindow (dpy, screen);
if (!XGetWindowAttributes(dpy, window, &win_info))
{ fprintf(stderr,"Can't get target window attributes."); exit(1); }
absx=0; absy=0;
win_info.x = 0;
win_info.y = 0;
width = win_info.width;
height = win_info.height;
bw = 0;
dwidth = DisplayWidth (dpy, screen);
dheight = DisplayHeight (dpy, screen);
XFetchName(dpy, window, &win_name);
if (!win_name || !win_name[0]) {
win_name = "xwdump";
got_win_name = False;
} else {
got_win_name = True;
}
/* sizeof(char) is included for the null string terminator. */
win_name_size = strlen(win_name) + sizeof(char);
/*
* Snarf the pixmap with XGetImage.
*/
x = absx - win_info.x;
y = absy - win_info.y;
#if 0
multiVis = GetMultiVisualRegions(dpy,RootWindow(dpy, screen),absx,absy,
width,height,&transparentOverlays,&numVisuals,&pVisuals,
&numOverlayVisuals,&pOverlayVisuals,&numImageVisuals,
&pImageVisuals,&vis_regions,&vis_image_regions,&allImage) ;
if (on_root || multiVis)
{
if (!multiVis)
image = XGetImage (dpy, RootWindow(dpy, screen), absx, absy,
width, height, AllPlanes, format);
else
image = ReadAreaToImage(dpy, RootWindow(dpy, screen), absx, absy,
width, height,
numVisuals,pVisuals,numOverlayVisuals,pOverlayVisuals,
numImageVisuals, pImageVisuals,vis_regions,
vis_image_regions,format,allImage);
}
else
#endif
image = XGetImage (dpy, window, x, y, width, height,
AllPlanes, format);
if (!image) {
fprintf (stderr, "unable to get image at %dx%d+%d+%d\n",
width, height, x, y);
exit (1);
}
//if (add_pixel_value != 0) XAddPixel (image, add_pixel_value);
return image;
}
Window CreateWindow(Display * dpy, int screen, int width, int height)
{
Window win = 0;
win = XCreateWindow(dpy, RootWindow(dpy, screen),
0, 0, width, height,
0,
24,
InputOutput,
DefaultVisual(dpy, screen),
//CWBorderPixel|CWBackPixel|CWColormap|CWEventMask|CWBitGravity,
0,
0);
XSelectInput(dpy, win, StructureNotifyMask|ButtonPressMask|ButtonReleaseMask);
XMapWindow(dpy, win);
return win;
}
void DrawImage(Display * dpy, Window win, XImage * image)
{
static GC gc;
if(win!=0)
{
if(gc==0)
{
XGCValues gc_val;
gc = XCreateGC (dpy, win, GCForeground|GCBackground, &gc_val);
}
/*for(i=0;i<100;i++)
{
image->data*/
XPutImage (dpy, win, gc, image, 0, 0, 0, 0, 1024, 768);
}
}
void createShmImage(int w, int h, XShmSegmentInfo * sinfo, XShmSegmentInfo * tinfo, Display * sdpy, Display * tdpy, int sscr, int tscr, XImage ** simage, XImage ** timage)
{
sinfo->shmid=tinfo->shmid=shmget(IPC_PRIVATE,w*h*sizeof(unsigned),IPC_CREAT|0666 );
sinfo->shmaddr=tinfo->shmaddr=(char*)shmat(sinfo->shmid,0,0);
sinfo->readOnly=tinfo->readOnly=False;
printf("%d %d\n",DefaultDepth(sdpy,sscr),DefaultDepth(tdpy,tscr));
*simage = XShmCreateImage(
sdpy, DefaultVisual(sdpy,sscr), DefaultDepth(sdpy,sscr),
ZPixmap/*format*/,
(char *)sinfo->shmaddr, sinfo,
w,h /*width,height*/
);
*timage = XShmCreateImage(
tdpy, DefaultVisual(tdpy,tscr), DefaultDepth(tdpy,tscr),
ZPixmap/*format*/,
(char *)tinfo->shmaddr, tinfo,
w,h /*width,height*/
);
XShmAttach(sdpy, sinfo);
XShmAttach(tdpy, tinfo);
}
void drawMouse(XImage * img, int xm, int ym)
{
int x,y,x1,y1,x2,y2,w,h;
unsigned * data = (unsigned *)(img->data);
w=img->width;
h=img->height;
x=xm; if(x<0) x=0; if(x>w) x=w-1;
y=ym; if(y<0) y=0; if(y>h) y=h-1;
x1=xm-5; if(x1<0) x1=0; if(x1>w) x1=w;
x2=xm+6; if(x2<0) x2=0; if(x2>w) x2=w;
for(x=x1;x<x2;x++) data[y*w+x] = 0xFFFFFF;
//data[y*w+x] = 0xFFFFFF;
x=xm; if(x<0) x=0; if(x>w) x=w-1;
y=ym; if(y<0) y=0; if(y>h) y=h-1;
y1=ym-5; if(y1<0) y1=0; if(y1>h) y1=h;
y2=ym+6; if(y2<0) y2=0; if(y2>h) y2=h;
for(y=y1;y<y2;y++) data[y*w+x] = 0xFFFFFF;
}
main(int argc, char * argv [])
{
Display * sdpy = XOpenDisplay(argv[1]);
Display * tdpy = XOpenDisplay(argv[2]);
int sscr = XDefaultScreen(sdpy);
int tscr = XDefaultScreen(tdpy);
GC tgc = DefaultGC(tdpy,tscr);
Window swin=RootWindow (sdpy,sscr);
int width, height, dummy;
XGetGeometry(sdpy, swin, (Window *)&dummy, &dummy, &dummy, &width, &height, &dummy, &dummy);
Window twin=CreateWindow(tdpy,tscr,width,height);
XSelectInput(sdpy, swin, PointerMotionMask);
XImage * image;
XImage * simage;
XImage * timage;
int use_shm=1;
XShmSegmentInfo xshm_sinfo;
XShmSegmentInfo xshm_tinfo;
if(use_shm) createShmImage(width,height,&xshm_sinfo,&xshm_tinfo,sdpy,tdpy,sscr,tscr,&simage,&timage);
int frame=0;
for(;;) {
XEvent e;
XNextEvent(tdpy, &e);
if (e.type == MapNotify)
break;
}
int emulate_events=0;
int xmouse, ymouse;
while(1)
{
{
XEvent e;
//long mask=ButtonPressMask|ButtonReleaseMask|MotionNotifyMask;
//while(XCheckWindowEvent(tdpy, twin, mask, &e)!=False)
while(XCheckTypedWindowEvent(tdpy, twin, ButtonPress, &e)!=False ||
XCheckTypedWindowEvent(tdpy, twin, ButtonRelease, &e)!=False)
{
printf("button event\n");
if(emulate_events)
{
e.xbutton.display=sdpy;
e.xbutton.window=swin;
e.xbutton.root=swin;
e.xbutton.window=swin;
e.xbutton.x_root=e.xbutton.x;
e.xbutton.y_root=e.xbutton.y;
//XSendEvent( sdpy, swin, True, mask, &e );
XPutBackEvent( sdpy, &e );
//XTestFakeMotionEvent(sdpy,sscr,e.xbutton.x,e.xbutton.y,0);
XTestFakeButtonEvent(sdpy,e.xbutton.button,e.xbutton.type==ButtonPress,0);
}
}
while(XCheckTypedWindowEvent(sdpy, swin, MotionNotify, &e)!=False)
{
//printf("motion event\n");
xmouse=e.xbutton.x_root;
ymouse=e.xbutton.y_root;
}
}
//printf("frame %d\n", frame++);
usleep(60000);
if(!use_shm)
{
image=CaptRoot(sdpy,sscr);
DrawImage(tdpy,twin,image);
XDestroyImage(image);
}
else
{
// XShmAttach(sdpy, &xshm_sinfo);
XShmGetImage (sdpy, swin, simage, 0, 0, AllPlanes);
// XShmAttach(sdpy, &xshm_tinfo);
//printf("simage: w:%d h:%d d:%d\n",simage->width, simage->height, simage->depth);
//printf("timage: w:%d h:%d d:%d\n",timage->width, timage->height, timage->depth);
if(!emulate_events)
{
Window rwin,cwin;
int xmouse,ymouse,x,y,mask;
XQueryPointer(sdpy,swin,&rwin,&cwin,&xmouse,&ymouse,&x,&y,&mask);
drawMouse(timage, xmouse, ymouse);
}
XShmPutImage (tdpy, twin, tgc, timage, 0, 0, 0, 0, timage->width, timage->height, False);
//XPutImage (tdpy, twin, tgc, timage, 0, 0, 0, 0, timage->width, timage->height);
}
//XFlush(sdpy);
XFlush(tdpy);
// getchar();
}
}
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