Enable chromakey array on map and textri

[ddelemeny]

Partially fixes #996

[RobLoach]

Looks like the other languages are not yet implemented. Seems like a neat idea, but I'm not quite sure how handy it will be. Most sprite sheets almost always only have one chromakey. Will this have an impact on performance?

[ddelemeny]

@RobLoach Thanks for your answer. This should have negligible impact on performance as it leverages

• for map, the fact that drawTile uses a cached LUT (mapping) to handle both palette remapping and multiple chromakey
• for textri, the same thing implemented here : 2236050#diff-eb4f22e725ac78ffcd0bab3f665147bbR1063. (Prior to this commit, the behavior was to call mapColor on every pixel through the use of setPixel, which was arguably not optimized)

The only difference in perf should come from parameter handling for each language bindings, which should be small compared to actually drawing pixels.

As for the utility of it. I'm looking for consistency in the API, and I believe that if it wasn't that useful, spr wouldn't have it in the first place.

Which languages are not implemented ?

[nesbox]

ok, thank you
pls update the wiki if not difficult

[ddelemeny]

Thanks, I've updated the wiki accordingly.