Does anyone know how to decompress screens saved as 'packed' (or 'compacte' in French) in ConvImgCPC (http://www.cpcwiki.eu/index.php/ConvImgCPC)?
I can't find details of the algorithm used anywhere...
Maybe these 2 files will help you:
Thanks, will take a look - I think these are for LZW compressed screens so will have to check if ConvImgCPC uses this.
I used to have (back in the day) a really nice CPC utility that took a normal 16kb screen, compressed it (probably just RLE), added a decompress routine and then saved it to disk. To load the screen, you just loaded the file, called the routine and it decompressed it to the screen (&C000).
I can't for the life of me remember what it was called and have searched but come up with nothing. Anyone remember what it was called...?
Quote from: redbox on 00:14, 15 December 10
I used to have (back in the day) a really nice CPC utility that took a normal 16kb screen, compressed it (probably just RLE), added a decompress routine and then saved it to disk. To load the screen, you just loaded the file, called the routine and it decompressed it to the screen (&C000).
Yay, I found one on CPC Rulez (http://cpcrulez.fr/Screen_Compact.asm). :)
redbox wrote:
Thanks, will take a look - I think these are for LZW compressed screens so will have to check if ConvImgCPC uses this.
I used to have (back in the day) a really nice CPC utility that took a normal 16kb screen, compressed it (probably just RLE), added a decompress routine and then saved it to disk. To load the screen, you just loaded the file, called the routine and it decompressed it to the screen (&C000).
I can't for the life of me remember what it was called and have searched but come up with nothing. Anyone remember what it was called...?
The one I remember which was on an AA Covertape was SQ23 which I used a bit, AA used to have a few Screen Squashers in the Type-ins as well - the one I recall called Squeeze was in AA57, which had you entering the Screen Colours and Screen Mode, all worked well, though I think SQ23 was faster and allowed you to arrange how the screen was drawn I think - though it didn't allow you to set screen inks or mode, not that it was a problem and in some ways it worked to it's advantage! ;D Unfortunately SQ23 is one of those programs you pickup from the Robot PD Library and it's sadly on one of those disks which isn't on David Cantrell's website, but I might have a copy somewhere on one of my utility disks (if that's the program your after).
Quote from: CP/M User on 12:09, 20 December 10
The one I remember which was on an AA Covertape was SQ23 which I used a bit, AA used to have a few Screen Squashers in the Type-ins as well - the one I recall called Squeeze was in AA57, which had you entering the Screen Colours and Screen Mode, all worked well, though I think SQ23 was faster and allowed you to arrange how the screen was drawn I think - though it didn't allow you to set screen inks or mode, not that it was a problem and in some ways it worked to it's advantage! ;D
Yes it was Squeeze, well done for remembering that one!
The one from CPCRulez (above) works fine for me though, so no need to dig it out thanks.