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Using 7800 graphic converter


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#1 DracIsBack OFFLINE  

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Posted Thu Oct 13, 2005 10:07 AM

I just ran a digital picture through the 7800 graphics conversion program. Does this utility create a self-running file around the picture (no 7800 here to test this on) or do you also have to write code to get the picture to display?

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#2 Schmutzpuppe OFFLINE  

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Posted Thu Oct 13, 2005 11:20 AM

DracIsBack, on Thu Oct 13, 2005 11:07 AM, said:

I just ran a digital picture through the 7800 graphics conversion program. Does this utility create a self-running file around the picture (no 7800 here to test this on) or do you also have to write code to get the picture to display?

View Post

No the tool isn't able to create self running code.
Overall it's more a developer tools than an easy to use picture converter.
Of course you can take the "haunted" source as template you just have to replace the gfx binary and change the color palette.
The only thing that I am wonder about is the size of the binary 96kb is far to big for a picture the normal size for an 160x4 converted picture is 16kb.

#3 DracIsBack OFFLINE  

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Posted Wed Oct 19, 2005 6:31 PM

Schmutzpuppe, on Thu Oct 13, 2005 6:20 PM, said:

DracIsBack, on Thu Oct 13, 2005 11:07 AM, said:

I just ran a digital picture through the 7800 graphics conversion program. Does this utility create a self-running file around the picture (no 7800 here to test this on) or do you also have to write code to get the picture to display?

View Post

No the tool isn't able to create self running code.
Overall it's more a developer tools than an easy to use picture converter.
Of course you can take the "haunted" source as template you just have to replace the gfx binary and change the color palette.
The only thing that I am wonder about is the size of the binary 96kb is far to big for a picture the normal size for an 160x4 converted picture is 16kb.

View Post


Not quite sure of the size. I was actually trying to see if the 7800 could reproduce (crudely) a digital picture. So I took a digital photo of my dog, turned it to greyscale, reduced the colours and adjusted it to the resolution demanded.

7800 developers didn't really have the luxery of tools like Adobe Photoshop or Corel Paint Shop Pro back then so I was just curious how well such a beast would appear.

#4 MaDDuck OFFLINE  

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Posted Thu Oct 20, 2005 12:03 PM

DracIsBack, on Wed Oct 19, 2005 6:31 PM, said:

Schmutzpuppe, on Thu Oct 13, 2005 6:20 PM, said:

DracIsBack, on Thu Oct 13, 2005 11:07 AM, said:

I just ran a digital picture through the 7800 graphics conversion program. Does this utility create a self-running file around the picture (no 7800 here to test this on) or do you also have to write code to get the picture to display?

View Post

No the tool isn't able to create self running code.
Overall it's more a developer tools than an easy to use picture converter.
Of course you can take the "haunted" source as template you just have to replace the gfx binary and change the color palette.
The only thing that I am wonder about is the size of the binary 96kb is far to big for a picture the normal size for an 160x4 converted picture is 16kb.

View Post


Not quite sure of the size. I was actually trying to see if the 7800 could reproduce (crudely) a digital picture. So I took a digital photo of my dog, turned it to greyscale, reduced the colours and adjusted it to the resolution demanded.

7800 developers didn't really have the luxery of tools like Adobe Photoshop or Corel Paint Shop Pro back then so I was just curious how well such a beast would appear.

View Post



Sounds intresting, do you have a picture? I'd love to see how it looks!
Thanks!!

#5 Schmutzpuppe OFFLINE  

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Posted Mon Oct 24, 2005 12:26 PM

I made an sample picture of a dog me and my girlfriend sometimes take care of.
The archive contains pictures of every necessary step, the source code and of course the bin/a78 files.
First I took a picture with a size of 320x200 than I resized the image width (/2) and reduced the number of colors.
The result was converted by 78gfxconv.
For your own image you just have to replace the "beropic.bin" generated by the tool with your own image and adjust the color palette.
I just tested it on Prosystem Emu the colors may look different on a real 7800 (well I am quite sure the look different...)

Attached Thumbnails

  • bero_original.png
  • bero78.png

Attached Files

  • Attached File  bero.zip   228.6K   145 downloads


#6 Schmutzpuppe OFFLINE  

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Posted Mon Oct 24, 2005 12:43 PM

Same in black & white.

Attached Thumbnails

  • bero_bw.png

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#7 MaDDuck OFFLINE  

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Posted Thu Nov 3, 2005 1:53 PM

Schmutzpuppe, on Mon Oct 24, 2005 12:43 PM, said:

Same in black & white.

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Impressive work!
I hope a lot of developers use that tool.
BTW, does it support 320 X 200 resolution?
If not, what resolution were those screen grabs??

#8 Schmutzpuppe OFFLINE  

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Posted Mon Nov 7, 2005 6:23 PM

MaDDuck, on Thu Nov 3, 2005 8:53 PM, said:

Schmutzpuppe, on Mon Oct 24, 2005 12:43 PM, said:

Same in black & white.

View Post



Impressive work!
I hope a lot of developers use that tool.
BTW, does it support 320 X 200 resolution?
If not, what resolution were those screen grabs??

View Post

The pictures are in 160x mode.
Mode 320 is not directly supported for pictures but you could "assemble" a picture in that mode.
It's just a little bit more complicated.

#9 MaDDuck OFFLINE  

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Posted Fri Nov 18, 2005 11:22 AM

Schmutzpuppe, on Mon Nov 7, 2005 6:23 PM, said:

MaDDuck, on Thu Nov 3, 2005 8:53 PM, said:

Schmutzpuppe, on Mon Oct 24, 2005 12:43 PM, said:

Same in black & white.

View Post



Impressive work!
I hope a lot of developers use that tool.
BTW, does it support 320 X 200 resolution?
If not, what resolution were those screen grabs??

View Post

The pictures are in 160x mode.
Mode 320 is not directly supported for pictures but you could "assemble" a picture in that mode.
It's just a little bit more complicated.

View Post



Is it worth the effort to do, or does it eat the system resources too much?
ALSO- Which games are in 320 X 200 (Mode 320!), I looked in the screedshot page, and they all looked 160!

#10 Schmutzpuppe OFFLINE  

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Posted Fri Nov 18, 2005 1:42 PM

MaDDuck, on Fri Nov 18, 2005 6:22 PM, said:

Is it worth the effort to do, or does it eat the system resources too much?
ALSO- Which games are in 320 X 200 (Mode 320!), I looked in the screedshot page, and they all looked 160!

View Post

Well it depends of what you wanna do.
Of course it is possible to use 320 mode but you have to bother with some restrictions and less colors.
As far as I know there are only 3 (with Combat maybe 4) games that use 320 Mode: Space War, Tubes and Frogger.
For pictures/titlescreens 160 mode is imho better in most cases.

#11 Shawn Sr. OFFLINE  

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Posted Tue Jun 6, 2006 8:44 PM

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

#12 Allan OFFLINE  

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Posted Wed Jun 7, 2006 6:05 AM

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan

#13 Shawn Sr. OFFLINE  

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Posted Thu Jun 8, 2006 1:35 PM

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hanfg of this tool as I want to make photo carts for myself of my own personal images.

#14 Mitch OFFLINE  

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Posted Thu Jun 8, 2006 2:24 PM

View PostShawn Sr., on Thu Jun 8, 2006 12:35 PM, said:

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hang of this tool as I want to make photo carts for myself of my own personal images.

I'm guessing he used either used a CC2 with the 78Quick startup option or is using a 7800 that doesn't have the standard NTSC BIOS.

Mitch

#15 Allan OFFLINE  

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Posted Thu Jun 8, 2006 3:04 PM

View PostMitch, on Thu Jun 8, 2006 4:24 PM, said:

View PostShawn Sr., on Thu Jun 8, 2006 12:35 PM, said:

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hang of this tool as I want to make photo carts for myself of my own personal images.

I'm guessing he used either used a CC2 with the 78Quick startup option or is using a 7800 that doesn't have the standard NTSC BIOS.

Mitch

Opps, I forgot. Yes, I used my CC2. Here's the line.

Bero - dog pic -7800 bero bero 7800_32K 78QUICK

Allan

#16 Allan OFFLINE  

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Posted Thu Jun 8, 2006 3:34 PM

View PostShawn Sr., on Thu Jun 8, 2006 3:35 PM, said:

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hanfg of this tool as I want to make photo carts for myself of my own personal images.

Sorry, I can't help you with getting the files signed. I've always just been using my CC2.

Allan

#17 jwierer OFFLINE  

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Posted Fri Jun 9, 2006 10:38 PM

View PostShawn Sr., on Thu Jun 8, 2006 2:35 PM, said:

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hanfg of this tool as I want to make photo carts for myself of my own personal images.

This utility should do the trick
http://atarihq.com/d...les/a78sign.zip

-Jeff

#18 Mitch OFFLINE  

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Posted Sat Jun 10, 2006 12:37 AM

View Postjwierer, on Fri Jun 9, 2006 9:38 PM, said:

View PostShawn Sr., on Thu Jun 8, 2006 2:35 PM, said:

View PostAllan, on Wed Jun 7, 2006 8:05 AM, said:

View PostShawn Sr., on Tue Jun 6, 2006 10:44 PM, said:

Do these BIN's work on real hardware? I can't seem to get them to boot for the life of me. The 16k BW BIN or the 32k color BIN.

I got the dog pic to work on my 7800. I'll look later to see what files I used with it.

Allan


That would be good because I found out the pics are not "signing" correctly and that is why they wont run. I would really like to know who you got them to work as is cause I had to get help from Mitch to properly sign the pic for me. I really want to get the hanfg of this tool as I want to make photo carts for myself of my own personal images.

This utility should do the trick
http://atarihq.com/d...les/a78sign.zip

-Jeff

Yes, but only if you fix the bug in the source code first. (or manually patch the bin)

Mitch

#19 DracIsBack OFFLINE  

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Posted Sun Jul 2, 2006 9:06 PM

View PostSchmutzpuppe, on Mon Oct 24, 2005 7:43 PM, said:

Same in black & white.

Has anyone got the black and white dog to play on their 7800? I was able to get the color dog, but not this one.

#20 Mitch OFFLINE  

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Posted Sun Jul 2, 2006 10:13 PM

View PostDracIsBack, on Sun Jul 2, 2006 8:06 PM, said:

View PostSchmutzpuppe, on Mon Oct 24, 2005 7:43 PM, said:

Same in black & white.

Has anyone got the black and white dog to play on their 7800? I was able to get the color dog, but not this one.

Try this one.

Mitch

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#21 vdub_bobby OFFLINE  

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Posted Thu Aug 3, 2006 11:30 AM

View PostSchmutzpuppe, on Fri Nov 18, 2005 12:42 PM, said:

Of course it is possible to use 320 mode but you have to bother with some restrictions and less colors.
As far as I know there are only 3 (with Combat maybe 4) games that use 320 Mode: Space War, Tubes and Frogger.
For pictures/titlescreens 160 mode is imho better in most cases.
I think One-on-One Basketball uses a 320 mode as well. ;)




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