Re: [cc65] TGI blit (was: Colormania)

From: Oliver Schmidt <>
Date: 2009-11-03 09:42:01
Hi Groepaz,

> godot is an image manipulation program that runs on the c64... it uses that
> 4bpp format so it can work on it without having to take the various
> restrictions of c64 graphics modes into account. that format has no practical
> use besides this - and ofcourse for pretty much all other uses people use the
> native format that you can simply copy to video memory.

Thanks for the explanation :-)

> atleast for my stuff i can say... that the tools i am using are always tweaked
> for a specific application. the only useful "generic" converters are those
> that convert fullscreen graphics - anything else is almost certainly
> application specific.

So it seems there is in fact demand for a new tool - even for the C64:

- Running on the cc65 host (not target) platforms
- Reading a BMP/PNG/...
- Writing a device dependend bitmap (hopefully supporting many TGI drivers)
- The bitmap contains some minimal header with height and width and ...
- Hopefully many TGI drivers support copying "their" bitmap to a drawpage

So it's basically a 1on1 between the driver-specific tool-backend and
the driver "copy" code.

Something like this seems useful to me...

Best, Oliver
To unsubscribe from the list send mail to with
the string "unsubscribe cc65" in the body(!) of the mail.
Received on Tue Nov 3 09:42:08 2009

This archive was generated by hypermail 2.1.8 : 2009-11-03 09:42:10 CET