Jeff Epler adca341d3b
Save code space by packing rgbw values into C union
It's more efficient passing one register-sized structure than 4
arguments or 4 pointers; working on intermediate values of 'int' size
is also more efficient in code size!

On raspberry pi pico w, this increased free flash space by +104 bytes.
It also increased the speed of my testing animation very slightly, from
187fps to 189fps when run 'unthrottled'
2022-11-14 09:29:45 -06:00
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2022-09-30 11:18:13 -05:00