Hi list,
I'm trying a my application on win and on lin and I see, with a big
surprise, that there are a big speed difference when I draw a bitmap on
a dc (a panel dc) and those platforms, after set the dc userscale:bitmap: size = 1700x2200, depth = 24
time in seconds calculate with this:
t = time.time()
dc.DrawBitmap(bmp, 0,0)
print time.time() -tscale win lin
1.0 0.01 0.001
0.9 0.06 4.1
0.8 0.05 2.5
0.6 0.05 1.7
0.5 0.06 1.3
0.1 0.04 0.7Is there a solution or at least an answer *why* this very high time on lin?
win 2k, py 2.3, 2.6.1
deb 3.1, py 2.3, wx 2.6.1 (self compiled)Thanks,
Michele
The scaling code on Linux is probably using a generic code path which
convert the bitmap to a wxImage, scales it, and back to a wxBitmap.
This is slow. There is work being done on improving the performance of
wxDC on Gtk which may help this, but I can't give you any timeline on
when you might see it.
Consider pre-scaling images and caching as neccesary.
ยทยทยท
On 11/11/05, Michele Petrazzo <michele.petrazzo@unipex.it> wrote:
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