FS: Scandoubler/Flicker Fixer DCE Flicker Magic

lopos2000 · 21 October 2007, 10:14

For Sale
internal SD/FF for A1200/A4000: DCE Flicker Magic -->£125 +P&P

alexh · 21 October 2007, 13:41

Is this a 24-bit or a 16-bit scandoubler/flickerfixer?

Is it the version which clips over the Alice chip or the version which has a connector to the external 23-pin video out?

FYI the data on the link above is incorrect.

http://amigahardware.mariomisic.de/c...cgi?HARDID=361

Tyball · 21 October 2007, 16:27

I'm interested.

lopos2000 · 22 October 2007, 23:33

Sold!

alexh · 23 October 2007, 00:43

I tried to do some advertising for you but it seems you didnt need it

http://www.amiga.org/modules/newbb/v...orumpost477293

CU_AMiGA · 23 October 2007, 01:46

as far as i know the only 24 bit sd/ff is the picasso iv (meaning it displays aga colours correctly). the dce flicker magic, etc is only 16 bit (which isn't good for aga, only good for ecs/ocs).

Smiley · 23 October 2007, 02:40

When I had my Scandy1200 internal scandoubler it displayed AGA graphics perfectly on my TFT.

I presume the Scandy1200 is only 16bit. Whats the fuss? It never even crossed my mind that the AGA gfx were not being displayed correctly through it, because they weren't

Chain · 23 October 2007, 07:00

sold like hot cakes, even for 125 quids

coze · 23 October 2007, 09:12

I can't see why someone would make a ECS scandoubler for an AGA system ? Once I saw a test picture to check if all bits are remaining, something like shades of green I guess. does someone have it ?

lopos2000 · 23 October 2007, 09:48

@alexh
Thanks. I never had any problem with my SD/FF. It's the best (imo) SD/FF.

alexh · 23 October 2007, 10:21

Quote:

Originally Posted by coze

I can't see why someone would make a ECS scandoubler for an AGA system ?

It's a limitation of the chips available. They are (I think) all 16-bit RGB (5:6:5) input. ECS is 12-bit btw.

Quote:

Once I saw a test picture to check if all bits are remaining, something like shades of green I guess. does someone have it ?

No but it is easy to make them. Three pictures, each just 256 shades of R, G or B in a gradient left to right.

Should look imperceptibly smooth on a 24-bit scandoubler. Will look stepped on a 16-bit scandoubler.

Use this image in windows.

http://www.spronkey.com/sdc-gradients.png

View it in 24 (or 32-bit) and then switch to 16-bit and you will see the 5:6:5 RGB effect.

You cannot use that picture directly on the Amiga because AGA can only easily display 256 colours at the same time, you need to cut up the RED, GREEN and BLUE bits into separate images, or generate your own in PC D-Paint.

YoJoe! · 23 October 2007, 10:31

The top part of Gradients.png displays 100% pixel perfect in HAM8 mode with any HAM8 pic viewer such as Visage or Viewtek etc.

It will clearly show if you have a crap 16-bit flickerfixer or a good 24-bit flickerfixer.

YoJoe! · 23 October 2007, 10:34

When you use crap 16-bit flickerfixer you are limiting yourself to 32 shades of red, green and blue.

AGA provides 256 shades of red, green and blue.

alexh · 23 October 2007, 10:38

Quote:

Originally Posted by YoJoe!

The top part of Gradients.png displays 100% pixel perfect in HAM8 mode with any HAM8 pic viewer such as Visage or Viewtek etc.

Is that possible? I thought that the maximum number of colours in a HAM8 pic was quoted as 262144? I dont know, never quite understood HAM8 limitations.

Quote:

When you use crap 16-bit flickerfixer you are limiting yourself to 32 shades of red, green and blue.

64 Colours of Green. Green is the colour that the human eye sees in the most detail which is why they give it one more bit. Hence 5:6:5 RGB

YoJoe! · 23 October 2007, 11:03

Only need 256 colors to test all the pure red shades.

Only need 768 colors to test all the pure red, green and blue shades.

Trust in the HAM

alexh · 23 October 2007, 11:18

I realised what I had said as soon as I had posted.

I was thinking of a colour cube rather than these gradients.

21 October 2007, 10:14	#1
lopos2000 Zone Friend Join Date: Apr 2005 Location: Cider is best In The West Posts: 1,238	FS: Scandoubler/Flicker Fixer DCE Flicker Magic For Sale internal SD/FF for A1200/A4000: DCE Flicker Magic -->£125 +P&P

21 October 2007, 13:41	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,339	Is this a 24-bit or a 16-bit scandoubler/flickerfixer? Is it the version which clips over the Alice chip or the version which has a connector to the external 23-pin video out? FYI the data on the link above is incorrect. http://amigahardware.mariomisic.de/c...cgi?HARDID=361 Last edited by alexh; 21 October 2007 at 13:51.

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21 October 2007, 16:27	#3
Tyball Registered User Join Date: Feb 2007 Location: Netherlands Posts: 82	I'm interested.

22 October 2007, 23:33	#4
lopos2000 Zone Friend Join Date: Apr 2005 Location: Cider is best In The West Posts: 1,238	Sold!

23 October 2007, 00:43	#5
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,339	I tried to do some advertising for you but it seems you didnt need it http://www.amiga.org/modules/newbb/v...orumpost477293

23 October 2007, 01:46	#6
CU_AMiGA Banned Join Date: Dec 2003 Location: Exeter Age: 38 Posts: 970	as far as i know the only 24 bit sd/ff is the picasso iv (meaning it displays aga colours correctly). the dce flicker magic, etc is only 16 bit (which isn't good for aga, only good for ecs/ocs).

23 October 2007, 02:40	#7
Smiley Amiga-less! Join Date: Feb 2005 Location: UK Posts: 1,350	When I had my Scandy1200 internal scandoubler it displayed AGA graphics perfectly on my TFT. I presume the Scandy1200 is only 16bit. Whats the fuss? It never even crossed my mind that the AGA gfx were not being displayed correctly through it, because they weren't

23 October 2007, 07:00	#8
Chain A-Collector, repairments Join Date: Jul 2001 Location: Czech Rep. Age: 50 Posts: 1,536	sold like hot cakes, even for 125 quids

23 October 2007, 09:12	#9
coze hastala vista winny vista Join Date: Feb 2006 Location: mt fuji Age: 46 Posts: 1,335	I can't see why someone would make a ECS scandoubler for an AGA system ? Once I saw a test picture to check if all bits are remaining, something like shades of green I guess. does someone have it ?

23 October 2007, 09:48	#10
lopos2000 Zone Friend Join Date: Apr 2005 Location: Cider is best In The West Posts: 1,238	@alexh Thanks. I never had any problem with my SD/FF. It's the best (imo) SD/FF.

23 October 2007, 10:31	#12
YoJoe! Amiga Enthusiast Join Date: Oct 2007 Location: USA Posts: 217	The top part of Gradients.png displays 100% pixel perfect in HAM8 mode with any HAM8 pic viewer such as Visage or Viewtek etc. It will clearly show if you have a crap 16-bit flickerfixer or a good 24-bit flickerfixer.

23 October 2007, 10:34	#13
YoJoe! Amiga Enthusiast Join Date: Oct 2007 Location: USA Posts: 217	When you use crap 16-bit flickerfixer you are limiting yourself to 32 shades of red, green and blue. AGA provides 256 shades of red, green and blue.

23 October 2007, 11:03	#15
YoJoe! Amiga Enthusiast Join Date: Oct 2007 Location: USA Posts: 217	Only need 256 colors to test all the pure red shades. Only need 768 colors to test all the pure red, green and blue shades. Trust in the HAM

23 October 2007, 11:18	#16
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,339	I realised what I had said as soon as I had posted. I was thinking of a colour cube rather than these gradients.

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