get windowposition using drawable and display

[Carsten Haitzler (The Rasterman)]

On Mon, 07 Aug 2006 14:49:22 +0200 dragoran <dragoran at feuerpokemon.de> babbled:

> Carsten Haitzler (The Rasterman) wrote:
> > On Sun, 06 Aug 2006 18:02:26 +0200 dragoran <dragoran at feuerpokemon.de>
> > babbled: so summary: use events - keep an updated x,y co-ord pair and use
> > those when you need it. don't do query calls to x if you can avoid it.
> >
> >   
> 
> ok thx now I have this:
> 
> void* window_thread(void* arg) {
> XEvent event;
> XSelectInput(data.dpy, data.drawable,StructureNotifyMask);
> while(data.status) {
> XNextEvent(data.dpy, &event);
> switch(event.type) {
> case ConfigureNotify:
> xosd_set_vertical_offset(data.dsp,event.xconfigure.y);
> xosd_set_horizontal_offset(data.dsp,event.xconfigure.x);
> break;
> default:
> break;
> }
> 
> }
> }
> 
> void glXSwapBuffers(Display* dpy, GLXDrawable drawable) {
> #ifdef DEBUG
> //fprintf(stderr,"about to draw hud ;)\n");
> #endif
> if(th==1) {
> pthread_t *hthread;
> pthread_t *dthread;
> pthread_t *wthread;
> gettimeofday(&starttime,NULL);
> data.status=1;
> data.frames=0;
> data.dpy=dpy;
> data.drawable=drawable;
> pthread_create(hthread,NULL,hud_thread,NULL);
> pthread_create(dthread,NULL,dbus_thread,NULL);
> pthread_create(dthread,NULL,window_thread,NULL);
> th=0;
> 
> }
> //increment frame counter
> data.frames++;
> pglXSwapBuffers(dpy, drawable);
> }
> 
> it works fine but when I move the window the framerate (in glxgears)
> goes down from ~11000 to 6000fps even when I keep the window and stop
> moving it...
> the hud_thread only counts the frames and prints them via xosd and the
> dbus one does change some vars which it gets from dbus so that the hud
> thread can display them.

when you are moving a window you will have lock contention on the gfx card -
not surprising your framerate goes down as glx with dri won't be pipelined like
standard x protocol and thus will sit and wait on a lock until x gives up the
gpu (of course this may vary from driver to driver... but i'm not an expert in
these details).


-- 
------------- Codito, ergo sum - "I code, therefore I am" --------------
The Rasterman (Carsten Haitzler)    raster at rasterman.com
裸好多
Tokyo, Japan (東京 日本)