On Sunday 26 Oct 2003 4:06 pm, Guillaume Laurent wrote: > Can someone explain me the sequence I marked with '*' ? Is this the > expected way of going ?
I looked briefly at this on Friday, but didn't get far. (You'll have noticed the additional debug output I committed.) This seems to be the result of the code in RosegardenSequencerApp::fetchEvents that seems to be designed explicitly to cope with loops in which the loop point may fall in the middle of a slice. In this situation, in order to ensure the slice contains a full slice's-worth of events, it may be necessary to fill the slice with some events from the end of the looped section plus some from the start. I got as far as thinking there was a particular problem with the combination of "end > m_loopEnd" test (as opposed to ">=") and failure to test "start < m_loopEnd": this seems to mean that when a slice actually ends at the same time as the loop end, it is treated as a normal slice, and then the _next_ slice (which is in fact entirely outside the loop) is treated as if it overlaps, hence this bizarre situation in which the start time is greater than or equal to the end time in the getSlice call. But it's not quite as simple as just an incorrect test in this function -- I'm not clear why the next slice is being requested at all (surely the code that's calling this should have flipped back to the start of the loop by then). I think on its own, this behaviour is strange but not fatal -- but combined with the meta-iterator's troubles handling non-contiguous slices (or whatever it is), it seems to cause real problems. I think this whole sequence (pardon the pun) is rather overcomplicated by the original requirement to fit everything into getSlice calls from the GUI. Chris ------------------------------------------------------- This SF.net email is sponsored by: The SF.net Donation Program. Do you like what SourceForge.net is doing for the Open Source Community? Make a contribution, and help us add new features and functionality. Click here: http://sourceforge.net/donate/ _______________________________________________ Rosegarden-devel mailing list [EMAIL PROTECTED] - use the link below to unsubscribe https://lists.sourceforge.net/lists/listinfo/rosegarden-devel
