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Oswald
Registered: Apr 2002
Posts: 5076 |
koala otpimizing
Hi Everyone,
I know there's a c64 tool out there that helps with optimizing koala pictures for packing, but no idea what it is called. Anyone knows?:) Timanthes would do the job for me aswell with its nibble swapper tool, but is there a way to load/save a native c64 koala format picture with it ? *.prg doesnt works, what format does it expect to be .prg anyway ?:) |
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Burglar
Registered: Dec 2004
Posts: 1069 |
I just released png2prg 1.8, now includes -brute-force mode to often beat SPOT 1.3 in pack ratio :)
+---------+--------+----------+------------+--------+
| spot1.3 | p2p1.8 | p2p1.8bf | p2p1.8best | p2p1.6 |
+---------+--------+----------+------------+--------+
| 7332 | 7372 | 7332 | 7324 | 7546 | Untitled/Floris
| 5136 | 5190 | 5149 | bf | 5464 | Song of the Sunset/Mermaid
| 5968 | 5998 | 5963 | bf | 6155 | Short Circuit/Karen Davies
| 3618 | 3647 | 3616 | 3589 | 3830 | Portrait L+D/Sander
| 5094 | 5080 | 5083 | 5078 | 5320 | Weee/Mermaid
| 7497 | 7471 | 7458 | bf | 7612 | Deadlock/Robin Levy
| 8068 | 8097 | 8046 | 8038 | 8227 | Room with a view/Veto
| 7445 | 7490 | 7432 | bf | 7582 | Vangelis/Talent
| 6759 | 6739 | 6737 | bf | 6963 | Temple of Tears/Hend
| 7859 | 7848 | 7839 | 7821 | 7998 | Thanos/JonEgg
| 4859 | 4849 | 4782 | bf | 4983 | Solar-Sonar/Leon
| 5640 | 5671 | 5613 | bf | 5869 | Cisco Heat/Alan Grier
| 6243 | 6286 | 6228 | bf | 6430 | Daylight/Sulevi
| 2850 | 2884 | 2848 | bf | 3092 | Yie Ar Kung Fu/Steve Wahid
| 6727 | 6721 | 6730 | 6711 | 6901 | Lee/The Sarge
| 7837 | 7828 | 7798 | bf | 7960 | Parrot/Mirage
| 4559 | 4536 | 4494 | bf | 4821 | Dragon's Lair
| 4275 | 4324 | 4292 | 4284 | 4519 | Scorpion/SIR'88
| 5562 | 5558 | 5506 | bf | 5668 | Hatching/Joe
+---------+--------+----------+------------+--------+
| 113328 | 113589 | 112946 | 112853 | 116940 | Total
+---------+--------+----------+------------+--------+
- all resulting koalas are packed with dali
- p2p1.8: default png2prg result w/o options
- p2p1.8bf: -brute-force mode
- p2p1.8best: hand-picked -bitpair-colors, or bruteforced with -npcc and/or -nbc flags
- p2p1.6: default png2prg 1.6 result w/o options |
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Sparta
Registered: Feb 2017
Posts: 42 |
Nice improvements Burglar! :)
SPOT 1.4 WIP with the same 19 pics and dali: 112867 bytes
No brute force or hand picking ;) |
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Fungus
Registered: Sep 2002
Posts: 668 |
Hey Sparta can you change .scr to .scn because it's a reserved filename in windows.
Burg can you add a split output mode for bitmaps, both MCM and HIRES.
Thank you both, saving me countless hours of manual optimization. |
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Burglar
Registered: Dec 2004
Posts: 1069 |
Quoting FungusBurg can you add a split output mode for bitmaps, both MCM and HIRES. I'm not sure I want to support alternate outputs. especially when its a oneliner in a normal shell:
dd skip=2 count=8000 if=foo.prg of=foo.bin bs=1
dd skip=8002 count=1000 if=foo.prg of=foo.scn bs=1
dd skip=9002 count=1000 if=foo.prg of=foo.col bs=1 |
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Burglar
Registered: Dec 2004
Posts: 1069 |
Quoting SpartaSPOT 1.4 WIP with the same 19 pics and dali: 112867 bytes damn, but dont worry, I still have some tricks up my sleeve :)
looking forward to running a new benchmark myself :) |
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Fungus
Registered: Sep 2002
Posts: 668 |
I dealt with it in 64tass, still koala format is not very useful :) |
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Jetboy
Registered: Jul 2006
Posts: 269 |
Quote: I dealt with it in 64tass, still koala format is not very useful :)
I find it useful enough :) But seriously, how is koala format not useful for you? |
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Fungus
Registered: Sep 2002
Posts: 668 |
Waste of memory to have to move things around into usable locations. |
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Raistlin
Registered: Mar 2007
Posts: 625 |
Quote: Waste of memory to have to move things around into usable locations.
When the Koala data is linked, it should be done in 2 or more chunks so that this moving/copying data isn’t needed. |
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Fungus
Registered: Sep 2002
Posts: 668 |
Yeah I tend to put the color map at $0800, the color memory at $0c00, the bitmap at $2000 and the code at $1000 so all I have to copy is the color memory and the maximum space is available for linking after it. |
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