Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Software > Calibre

Notices

Reply
 
Thread Tools Search this Thread
Old 06-17-2012, 09:26 AM   #1
Ericp
Junior Member
Ericp began at the beginning.
 
Posts: 5
Karma: 10
Join Date: Feb 2011
Device: Kindle and Sovos Reader
Cover Browser goes blank.

Sorry if this has a discussion somewhere, but I cannot find anything.

Trying to manipulate a large database using the cover browser, I have discovered that the browser breaks down and goes blank if a certain number of records is passed.

This number is 32768. Up to this record number the browser works well but passing this number results in a blank browser.

The number 32768 is familiar for some reason, perhaps I exceed a set variable?

Any ideas please?

Thanks
Ericp is offline   Reply With Quote
Old 06-17-2012, 11:29 AM   #2
kovidgoyal
creator of calibre
kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.
 
kovidgoyal's Avatar
 
Posts: 25,940
Karma: 5036099
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
32768 = 2**15

Sounds like an integer overflow, however since the cover browser use the int datatype which is capable of storing much larger numbers, I dont see why 2**15 should overflow, and I really dont feel like creating such a large library to track it down.
kovidgoyal is offline   Reply With Quote
Old 06-17-2012, 11:47 PM   #3
kovidgoyal
creator of calibre
kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.kovidgoyal ought to be getting tired of karma fortunes by now.
 
kovidgoyal's Avatar
 
Posts: 25,940
Karma: 5036099
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
I remembered I had a script to generate large database with random data and used it to generate a library with 40k entries. Covers for entries number 40,000 and 39,999 showed up in the cover browser for me.
kovidgoyal is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
PRS-T1 Browser blank after trying Gmail Saga Felix Sony Reader 8 06-17-2012 08:00 AM
Book shows blank cover in Nook Color wjbwjb29 Barnes & Noble NOOK 2 09-02-2011 08:23 PM
Blank default cover Sylver Conversion 2 03-13-2011 08:01 PM
blank page for cover after converting crestfalleen Calibre 2 06-03-2010 12:08 PM
Blank spaces on the side of cover when importing from epubs Dopedangel Calibre 6 02-09-2010 12:15 AM


All times are GMT -4. The time now is 02:22 PM.


MobileRead.com is a privately owned, operated and funded community.