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InsideQC Forums • View topic - Drawspans optimization in C for software Quake

Drawspans optimization in C for software Quake

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Postby mankrip » Mon Nov 15, 2010 2:28 am

Lower resolutions should generate a lower number of count cycles in comparison to spancount cycles. Is it also slower at higher resolutions?

And on a side note, that stippled version I've posted above is broken at the remainder ( if (spancount > 0) ) part.
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Re: Drawspans optimization in C for software Quake

Postby mankrip » Sat Oct 18, 2014 6:26 am

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Re: Drawspans optimization in C for software Quake

Postby mankrip » Fri May 01, 2015 7:11 pm

Negative indexes are really bad for stippling and for dithering, because they screw up bit parity consistency (*pdest&1).
My current code uses positive indexes for everything.
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