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Blitter line drawing improvements #7082

Merged
merged 3 commits into from
Jan 24, 2019
Merged

Blitter line drawing improvements #7082

merged 3 commits into from
Jan 24, 2019

Commits on Jan 24, 2019

  1. Codechange: [Blitter] Change DrawLine to be templated 

    This is remove per-pixel overheads due to use of the SetPixel virtual
method.
These overheads included:
* expensive virtual method call which prevents inlining
* palette lookup for every pixel
* branch on whether palette animation is enabled on every pixel

Regenerate project files.
    @JGRennison
    JGRennison committed Jan 24, 2019
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  2. Fix: [Blitter] Avoid signed overflow when drawing long lines

    @JGRennison
    JGRennison committed Jan 24, 2019
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  3. Codechange: [Blitter] Adjust line-drawing algorithm to reduce wasted … 

    …off-screen work

This clips the line segment to be within the screen area prior to pixel iteration.
    @JGRennison
    JGRennison committed Jan 24, 2019
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    5deee94 View commit details
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