Originally shared by David Berneda

-
Originally shared by David Berneda

Experimenting bypassing Firemonkey TCanvas to accelerate TeeChart "FastLine" series with many points.

So far good results in Windows (D2D), from 27 frames per second to 57 !

For iOS / Android the speed-up is not that big (yet), maybe a 20% only, but looking to find better code

Comments

  1. Alexander SviridenkovApril 27, 2017 at 10:14 AM

    For Android faster wai is to use native Android canvas (not OpenGL)

    ReplyDelete
  2. David BernedaApril 27, 2017 at 10:15 AM

    Alexander Sviridenkov but, do you mean is available (a Fmx.Canvas.JavaGraphics?)

    ReplyDelete
  3. David BernedaApril 27, 2017 at 10:16 AM

    or using AndroidAPI Graphics passing the opengl context?

    ReplyDelete
  4. Alexander SviridenkovApril 27, 2017 at 10:18 AM

    I meant using JCanvas/JPaint and copying result to OpenGL textures

    ReplyDelete
  5. David BernedaApril 27, 2017 at 10:20 AM

    Alexander Sviridenkov ah ! the problem is the output is transparent and must be "blended" with the existing background, and then the line/curve antialias pixels get lost or wrong

    ReplyDelete
  6. Alexander SviridenkovApril 27, 2017 at 10:53 AM

    Why not to paint all (background and points) in Android and pass final bitmap to FMX canvas?

    ReplyDelete
  7. David BernedaApril 27, 2017 at 10:54 AM

    Alexander Sviridenkov well, that will mean first creating a new Canvas (see sources fmx.canvas.xxx.pas units) which is not a trivial task. I'd like first to try small simple things

    ReplyDelete

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