memcpy(im_free->data, shmim->data, dsz);
rtimestamp(&begin, "mmalloc/memcpy");
} else {
+ rtimestamp(&begin, "XGetImage before");
xassert( im_use= im_free=
XGetImage(disp,id, 0,0, wwidth,wheight, AllPlanes, ZPixmap) );
rtimestamp(&begin, "XGetImage");
return 0;
int compare_to= a->h;
- if (max_relevant_y && compare_to > max_relevant_y)
+ if (max_relevant_y>=0 && compare_to > max_relevant_y)
compare_to= max_relevant_y;
return !memcmp(a->data, b->data, a->w * 3 * compare_to);
va_start(al,fmt);
Snapshot *last=0;
+ int nidentical=0;
/* waits longer if we're going to return an image identical to previously
* if previously==0, all images are considered identical to it */
char *doing;
sysassert( vasprintf(&doing,fmt,al) >=0 );
- progress("%s",doing);
debugf("PAGING wait_for_stability"
" last_input=%f previously=%p `%s'\n",
last_input, previously, doing);
+ double min_interval= 25000; /*us*/
for (;;) {
- double at_snapshot= timestamp();
- double need_sleep= min_update_allowance - (at_snapshot - last_input);
- if (need_sleep > 0) { delay(need_sleep); continue; }
+ progress_spinner("%s",doing);
+
+ double since_last_input= timestamp() - last_input;
+ double this_interval= min_interval - since_last_input;
- snapshot(output);
+ if (this_interval >= 0)
+ usleep(this_interval);
- if (!with_keypress &&
- !(previously && identical(*output,previously))) {
- debugf("PAGING wait_for_stability simple\n");
- break;
- }
+ snapshot(output);
- if (last && identical(*output,last)) {
- debugf("PAGING wait_for_stability stabilised\n");
- break;
+ if (!last) {
+ debugf("PAGING wait_for_stability first...\n");
+ last=*output; *output=0;
+ } else if (!identical(*output,last)) {
+ debugf("PAGING wait_for_stability changed...\n");
+ free(last); last=*output; *output=0;
+ nidentical=0;
+ if (!with_keypress) {
+ min_interval *= 3.0;
+ min_interval += 0.5;
+ }
+ } else {
+ nidentical++;
+ int threshold=
+ !previously ? 3 :
+ identical(*output,previously) ? 5
+ : 1;
+ debugf("PAGING wait_for_stability nidentical=%d threshold=%d\n",
+ nidentical, threshold);
+ if (nidentical >= threshold)
+ break;
+
+ min_interval += 0.5;
+ min_interval *= 2.0;
}
-
- progress_spinner("%s",doing);
-
- debugf("PAGING wait_for_stability retry\n");
-
- free_snapshot(&last); last=*output; *output=0;
if (with_keypress)
with_keypress();
-
- delay(0.5);
}
free_snapshot(&last);
check_client_window_all_on_screen();
- int shm= XShmQueryExtension(disp);
- debugf("PAGING shm=%d\n",shm);
+ Bool shmpixmaps=0;
+ int major=0,minor=0;
+ int shm= XShmQueryVersion(disp, &major,&minor,&shmpixmaps);
+ debugf("PAGING shm=%d %d.%d pixmaps=%d\n",shm,major,minor,shmpixmaps);
if (shm) {
xassert( shmim= XShmCreateImage(disp, attr.visual, attr.depth, ZPixmap,
0,&shminfo, wwidth,wheight) );