Re: [AD] update bitmap drawing after addition of transformations

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To: alleg-developers@xxxxxxxxxx
Subject: Re: [AD] update bitmap drawing after addition of transformations
From: Pavel Sountsov <slabode@xxxxxxxxxx>
Date: Fri, 13 Aug 2010 10:29:37 -0400 (EDT)

I have not benchmarked it yet, but I imagine the performance loss

will be

significant.  If it is, can we not make the memory draw_bitmap_region
implementation infer the rotate/scale special cases from the

transformation

matrix and call the specialised functions?

Peter

As Elias said, there are only the pure scaling and identity specialcases that need to be detected. Everything else (rotated/rotated +scaled/affine) is sent to the parallelogram drawer.


-SiegeLord

Follow-Ups:
- Re: [AD] update bitmap drawing after addition of transformations
  - From: Elias Pschernig

References:
- [AD] update bitmap drawing after addition of transformations
  - From: Elias Pschernig
- Re: [AD] update bitmap drawing after addition of transformations
  - From: Peter Wang

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