#76 faster waveform rendering

[Anonymous]

is there improvement to the waveform rendering
planned? i just recorded an stereo 55:00 minutes and
the rendering of the file takes around ~3 minutes on an
duron 1.3ghz machine with 256mb ram, i dont think that
ram or hd is the bottleneck. but these 3 minutes are
well... long - considered the fact that working with it
zooming in, out - cropping, cutting all takes a re-render
of the file.

so no chance on large recordings

[Davy Durham]

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Well, I do have some plans for calculating the peak-chunk
data in the background rather than always in the foreground
which will appear to make it faster in most cases. But it's
having to read gigs of data off your disk and process it..
it just takes as long as it takes.

Some improvements could be made to certain formats that
support it. Some formats support saving peak-chunk data.
My own .rez format could certainly be made to contain it.
That means a .rez file loaded would immediately have peak
chunk data at its use. The reason I didn't do that to begin
with was in case some peak chunk data was out of sync or
miscalculated for whatever reason, that it would at least be
completely recalculated the next time the file was loaded.
This of course can already be forced with a Control->Redraw
menu item tho.