Also, canvas.drawLines might be worth looking into http://developer.android.com/reference/android/graphics/Canvas.html#drawLines%28float[],%20android.graphics.Paint%29
On Jul 31, 8:33 pm, mickrobk <[email protected]> wrote: > A few ideas: > > you might see significant perfomance benifits by > usinghttp://developer.android.com/reference/android/graphics/Picture.html > to cut down method invocation overhead - if you have a few frames > where the lines don't change. it might even be worth it to have it > draw offscreen lines so the picture obj needs to be updated less. > > canvas.drawRect might be faster, and will only draw horz. and vertical > areas > > if you have free memory, drawing to a cache of bitmaps and blitting > the result could be faster > > -rob > > On Jul 31, 4:56 pm, f_heft <[email protected]> wrote: > > > Hello, > > > I'm developing a SurfaceView based, vector-styled game, so I'm using > > Canvas.drawLine(startX, startY, stopX, stopY, Paint) very often. All > > those lines are rectangular (startX=stopX or startY=stopY). > > The TraceViewer shows me, that more than 50% of time are used to draw > > those lines (about 100 per frame). > > > I read that drawLine is pretty slow on Android but I didn't find any > > suggestions for an alternative. > > What could be a faster method for this special case? I wouldn't need > > the Bresenham algorithm for example, which drawLine will use I guess. > > > Any suggestions? > > (Besides 'use openGL', as it's too late for that) > > > Regards, F Heft > > > PS: If anyone's interested: The game still runs with a sufficient > > frame rate, but I want to improve wherever I can :) > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
