[Coco] When Mario takes the wrong pipe

Simon Jonassen simon at roust-it.dk
Wed Oct 16 12:55:01 EDT 2013


I know how to convert a monochrome bitmap using .pbm format... Andyone konw
how i could convert a 4 color bitmap (eg pmode3) ????

/Simon :-)
 

-----Oprindelig meddelelse-----
Fra: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] På
vegne af Luis Antoniosi (CoCoDemus)
Sendt: 16. oktober 2013 17:36
Til: CoCoList for Color Computer Enthusiasts
Emne: Re: [Coco] When Mario takes the wrong pipe

if you save in single bit monochrome .bmp without RLE and remove the headers
what is left is the coco bitmap. Just concatenate a 5 byte header and
trailer for binary load and there you go.


On Wed, Oct 16, 2013 at 11:30 AM, Chris Osborn <fozztexx at fozztexx.com>wrote:

> Yah but stretching it is very easy. Much easier than writing an entire 
> editing program! It was easy to hack together a quick&dirty program to 
> read in a .png and output the bytes for the screen and then send the 
> bytes over serial and load the bytes into the video RAM.
>
> On Oct 16, 2013, at 8:16 AM, Luis Antoniosi (CoCoDemus) wrote:
>
> > but the 4 color mode has a wider pixel, you need to shrink the width 
> > in half, convert to 4 colors and stretch again using non linear
algoritm.
> And
> > then you have to convert it to coco bitmap mode.
> >
> > On Wed, Oct 16, 2013 at 11:11 AM, Chris Osborn 
> ><fozztexx at fozztexx.com
> >wrote:
> >
> >> I just pull pictures into photoshop and switch to indexed color 
> >> mode and give it a custom palette which has the limited colors of 
> >> the computer I want to display on.
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco
>



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