[haiku-development] Re: Optimizing Painter::_DrawBitmapBilinearCopy32 (was: Re: ShowImage patch)
- From: Rene Gollent <anevilyak@xxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Wed, 11 Mar 2009 12:14:10 -0500
On Wed, Mar 11, 2009 at 11:59 AM, Christian Packmann
<Christian.Packmann@xxxxxx> wrote:
> I /think/ this limit to the x-loop should be no performance problem in most
> cases. IIUC the length of the loop will depend on the currently processed
> clipping rectangle, this should normally be several pixels wide. But if the
> clipping rectangles get very small horizontally, the vector routines will
> perform worse than the C++ code due to the overhead of the function call and
> internal setup. If you think this will be a problem, I'll change the scope
> of the routine to include the y-loop.
>
Just a minor nitpick that I'm sure you're probably already aware of,
be sure to leave the C++ versions around for non-x86 platforms :)
Regards,
Rene
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