XineramaScreenInfo* XineramaQueryScreens(Display *dpy, int *number)
{
XineramaScreenInfo *ret, *work;
init();
ret = queryscreens(dpy, number);
if(*number == 2 && ret[1].width == 3840) {
work = Xmalloc(3 * sizeof(XineramaScreenInfo));
memcpy(work, ret, sizeof(XineramaScreenInfo));
work[1].screen_number = 1;
work[1].x_org = 1920;
work[1].y_org = 0;
work[1].width = 3840/2;
work[1].height = 1080;
work[2].screen_number = 2;
work[2].x_org = 1920 + 3840/2;
work[2].y_org = 0;
work[2].width = 3840/2;
work[2].height = 1080;
*number = 3;
XFree(ret);
ret = work;
}
return ret;
}
XineramaScreenInfo* XineramaQueryScreens(Display *dpy, int *number)
{
XineramaScreenInfo *ret, *work;
int i=0;
int y=0;
int numberOfScreens=0;
init();
ret = queryscreens(dpy, number);
/*
* We use screen_number=99 to mean that we have already claimed
* that screen as being the other half of another
* */
while(i<*number){///Cycle through Actual Xinerama Screens looking for a spilt 3840x2160 ones
if(ret[i].width==1920 && ret[i].height==2160){//We have half a screen, yay!
if(ret[i].screen_number==99){//This half screen has already been claimed as the second half of another, so skip it.
i++;
continue;
}
y=0;
int foundOtherHalf=0;
int otherHalfLeftOfThis=0;
while(y<*number){//Lets Look for that other half!
if(ret[y].screen_number!=99 && ret[y].width==1920 && ret[y].height==2160){// is a half
if(ret[y].y_org==ret[i].y_org && (ret[i].width+ret[i].x_org)==ret[y].x_org){
//Is the other half we are looking for, and it is to the Right of the first
if(ret[i].screen_number>ret[y].screen_number)
ret[i].screen_number=ret[y].screen_number;
ret[y].screen_number=99;
foundOtherHalf=1;
break;
}else if(ret[y].y_org==ret[i].y_org && (ret[y].width+ret[y].x_org)==ret[i].x_org){
//Is the other half we are looking for, and it is to the Left of the first
if(ret[i].screen_number>ret[y].screen_number)
ret[i].screen_number=ret[y].screen_number;
ret[y].screen_number=99;
foundOtherHalf=1;
otherHalfLeftOfThis=1;
break;
}
}
y++;
}
if(foundOtherHalf){//If we have another half then
ret[i].width=3840;//Set Width to Full
if(otherHalfLeftOfThis)
ret[i].x_org-=1920;
numberOfScreens++;
}else{//We didn't find the other half, so we will just continue as if this half was a screen in its own right
numberOfScreens++;
}
}else{
numberOfScreens++;
}
i++;
}
work = Xmalloc(numberOfScreens * sizeof(XineramaScreenInfo));
i=0;
y=0;
while(i<*number){
if(ret[i].screen_number!=99){//if it is a proper screen
work[y].screen_number=y;
work[y].x_org=ret[i].x_org;
work[y].y_org=ret[i].y_org;
work[y].width=ret[i].width;
work[y].height=ret[i].height;
y++;
}
i++;
}
XFree(ret);
ret=work;
*number = numberOfScreens;
return ret;
}
