sp65 changed - a lot

[42bs]

Now for the algo:

 

- At first I run the simple scan, that is finding all literals and packed  groups and stores it in an intermediate format keeping start pixel and length.

  Later passes work on this.

- Then I run multiple passes to combine literals and packed groups:

  More then 3 2-pixel groups are converted into a literal group: Literal: 5+3*4 = 17 < 3*(5+4) = 27

  A sequence of literal, packed with < 3, literal is converted into a literal group.

 

[enthusi]

Very nice improvement! :)
sprpck is about the only tool that I kept using and it looks like it might stay so.

[42bs]

@karri, would it be ok for you if I put the "bg" part as reference on GitHub (and also a 8, 4 and 2 bit/color version)?

[+karri]

Of course!

 

And I hope it is ok if I copy your code to sp65. I really don't see any point in going any further in optimisation when the end result is "mostly perfect". As Mary Poppins would say.

[42bs]

26 minutes ago, karri said:

Of course!

Great.

 

Quote

And I hope it is ok if I copy your code to sp65. I really don't see any point in going any further in optimisation when the end result is "mostly perfect". As Mary Poppins would say.

Yes of course. Please go ahead. I hope the code is clear enough.

Edited March 10, 2020 by 42bs