Amiga color palette as GMP download

[sparhawk]

Is the amiga color palette for download somehwere (gimp palette preferably)? Or is there a list of the 4096 RGB values documented?

For the C64 there is this page https://www.c64-wiki.com/wiki/Color and I look for something similar.

[DanScott]

0x000 to 0xFFF are the 4096 colour values. The Amiga doesn't have a fixed "palette" so to speak, in the sense of a fixed set of colours, as colour can be any 4bit component of R,G & B

Direct remap to 8 bit RGB values by multiplying each 4 bit component by 17 (0x11 hex)

so... 0xF00 (brightest red) -> 0xFF0000
so... 0x421 (brown) -> 0x442211

etc...

[Spec-Chum]

Amiga has a 12-bit RGB palette in the form RRRRGGGGBBBB

EDIT: Oh, took me so long to finish this (got distracted), didn't see @DanScott's reply

[chb]

What the other's said; there's also a simple plug-in for gimp that simulates the OCS palette as a filter:
https://github.com/alexalkis/palette_amigaOCS

Can be helpful to quickly check how your image looks in 4-bit RGB. Unfortunately, it automatically converts the image to indexed colors (1-5 bitplanes, EHB and HAM not supported), but you can easily change that behavior in the python source in case you don't want it.

[sparhawk]

Thanks. With this info I created my own palette file. I don't use gimp as it is a bit complicated for me. I'm using Piskel, which can load a Gimp Color Palette file, so I created one for C64 and one for the Amiga.

[Dan]

Hi,

here is a function (for the Blitzbasic for PC), which i use to convert amiga colors to RGB colors.

Function Ami2rgb(col)
;formula found on http://computingvoyage.com/982/color-bit-depth-reducer/
;This calculates the amiga rgb (rgb) format into  RGB colors of PC (RRGGBB)
;Col here represents either r,g or b value.
Return 255/15*col
End Function

Amiga colors will be in range from 000 to fff.
If you want to convert, for example 12f to the PC's RGB format, you will have to do it for each number, separately:

Color Ami2rgb(1), Ami2rgb(2), Ami2Rgb(15)