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usrlocalben / pixeltoaster

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add SSE2 converter routines #29

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
no point adding altivec now that apple has gone intel, so lets spend the
time optimizing for SSE2

we should use NASM for the assembler, and add a #define
PIXELTOASTER_USE_SSE2 which interfaces to the external assembly routines.

initially we should focus on the key conversion routines, eg. floating
point color -> integer, as these are pretty slow at the moment, as they are
pure c++ (however, they are as fast as possible for c++ impl!)

next, we should optimize common cases of 32bit -> 24bit/16bit etc.

Original issue reported on code.google.com by glenn.fi...@gmail.com on 7 Sep 2006 at 4:35