kicad-developers team mailing list archive

[jean-pierre charras - INPG <jean-pierre.charras@...>]

Vesa Solonen a écrit :
> I just wanted to point out that sysprof by Søren Sandmann seems very 
> useful for finding bottlenecs in code. It is available in Ubuntu repos 
> too. Any experiences or comments from anyone? Zoom and redraw speedups 
> are something I'm aiming at. Pcbnew seems to spend most of the time in 
> ZONE_CONTAINER::DrawFilledArea, TRACK::Draw and MODULE::Draw (19/17/14 
> out of 54). Background dot grid uses quite a lot of callbacks too.
>
> For background, how about dropping exactness in screen measures and always 
> fit the grid to even pixel count? Then wxBrush coud be used for drawing 
> and the would probably speed up alot compared to single pixel draw call.
>
> -Vesa
The grid is a reference, so i think the dots positions must be exact.
Perhaps creates a grid line in memory and using a blit function could be 
faster; (to do)

--
Jean-Pierre CHARRAS
Maître de conférences
Directeur d'études 2ieme année.
Génie Electrique et Informatique Industrielle 2
Institut Universitaire de Technologie 1 de Grenoble
BP 67, 38402 St Martin d'Heres Cedex

Recherche :
Grenoble Image Parole Signal Automatique (GIPSA - INPG)
Grenoble France