Structure of CopList object?

earok · 22 May 2017, 11:37

I can't seem to find a list of the contents of the "CopList" structure anywhere, even on http://www.amigacoding.com/index.php/Blitz:Object_types

I've reverse engineered enough of it to keep going, but having a fully labelled version of it would be useful for future, cheers.

Daedalus · 22 May 2017, 12:48

Hmmm, that is strange - it's not in the source of bb2objtypes.res either, which is where it should be... So I don't know where it's declared. Perhaps you could add what you've determined to the Blitz Object Types page to help others - partial information is better than none at all! Or send it to me and I can add it for you.

I don't know if you've already looked at it, but the AB3 object browser lets you at least see the names and types of the fields in a structure - it might be worth a look.

earok · 22 May 2017, 12:57

Quote:

Originally Posted by Daedalus

Hmmm, that is strange - it's not in the source of bb2objtypes.res either, which is where it should be... So I don't know where it's declared. Perhaps you could add what you've determined to the Blitz Object Types page to help others - partial information is better than none at all! Or send it to me and I can add it for you.

I don't know if you've already looked at it, but the AB3 object browser lets you at least see the names and types of the fields in a structure - it might be worth a look.

Ah cheers.. I haven't looked at AB3 at all.

In any case.. here's what I came up with. I'm 99% sure there's more fields than just this, this was as far as I dug into it (I only wanted to poke the custom copper commands).

Quote:

NEWTYPE .CopList
unknown.l ;*shrug*
copperlistaddress.l ;Address to the root of the copper list
copperlistaddress_palette.l ;Address to the start of the palette section
copperlistaddress_sprite.l ;Address to the start of the sprite section
copperlistaddress_bplcon.l ;Address to the BPL registers section
copperlistaddress_bitplanes.l ;Address to the Bitplanes settings here
copperlistaddress_topofscreen.l ;Address to the top of screen delay
copperlistaddress_custom.l ;Address to the custom copper commands
End NEWTYPE

Daedalus · 22 May 2017, 13:02

Cool, I'll add them anyway and have a look myself. I haven't ever looked at the structure itself so never noticed it was missing (or at least hidden away elsewhere). I'll have a dig through it when I'm in front of my machine at home later on and see what I can find.

Cylon · 22 May 2017, 18:33

It's in bb2objtypes.res, also in the sourcecode of this precompiled include:

Code:

NEWTYPE .coplist
  size.l            ;0 = not initialised
  coppos.l          ;location in chipmem
  colors.l
  sprites.l
  bpcons.l
  bplanes.l
  dot.l
  customs.l
  dob.l
  numbp.w:colpokes.w                  ;limits
  fetchwid.w:xand:xshift              ;for show calculations (3 words)
  ypos.w:height:res
  numsprites.w:numcols:numcustoms
  aga.w                               ;24bit=$8000 fetch = $00,$10,$20,$30
  resshift.w                          ;lo,hi,shi = 2 1 0
  setup.w                             ;lines taken for setup
  cblow.w                             ;if custom goes below 256
  sfetch.w:spres:spif:spwid:sspwid    ;sprite mode for display
End NEWTYPE

Daedalus · 23 May 2017, 00:55

Ah, interesting... It doesn't appear to be in either the AB3 version of bb2objtypes.res or the BB2 version I have here. I've added it anyway to the AmigaCoding list.

Be careful here though, and remember that lower-case Newtypes are generally Blitz internal objects, whereas CamelCase Newtypes are generally OS structs as defined in amigalibs.res (and prepended with an underscore in all.res). I was a little confused about that earlier, and it's the OS struct that earok appears to be using in his code.

The attachment is the AB3 definition of the .CopList Newtype (the OS-defined one), which is the one you appear to be using earok. It matches the struct defined in the Amiga SDK (includes/graphics/copper.h), but just like for other objects, is different to the Blitz internal .coplist Newtype.

earok · 23 May 2017, 03:33

ah, thanks guys. Much appreciated

idrougge · 23 May 2017, 23:13

It's also not in my bb2objtypes, which I used for adding the other objects to the Amigacoding wiki.

earok · 29 August 2018, 00:02

Is there a place where the complete bb2objtypes.res (with coplist) can be downloaded?

Daedalus · 29 August 2018, 22:19

Not that I know of. You could download the latest source for it from the AmiBlitz SourceForge site, add the extra definitions needed and compile your own...

Maybe Cylon knows where he got his version?

earok · 22 June 2019, 05:37

There seems to be an odd issue with the coplist structure as defined here, there appears to be a missing word (or perhaps there's word that should have been defined as a long)

size.l ;0 = not initialised
coppos.l ;location in chipmem
colors.l
sprites.l
bpcons.l
bplanes.l
dot.l
customs.l
dob.l
numbp.w:colpokes.w ;limits
fetchwid.w:xand:xshift ;for show calculations (3 words)
padding.w ;<- I've added this to correct offsets of ypos etc
ypos.w:height:res
numsprites.w:numcols:numcustoms
aga.w ;24bit=$8000 fetch = $00,$10,$20,$30
resshift.w ;lo,hi,shi = 2 1 0
setup.w ;lines taken for setup
cblow.w ;if custom goes below 256
sfetch.w:spres:spif:spwid:sspwid ;sprite mode for display

If I don't add that "padding.w" field (and I'm not totally sure where it should go), the YPOS is in Height, Height is in Res, Res in NumSprites etc.

22 May 2017, 11:37	#1
earok Registered User Join Date: Dec 2013 Location: Auckland Posts: 3,539	Structure of CopList object? I can't seem to find a list of the contents of the "CopList" structure anywhere, even on http://www.amigacoding.com/index.php/Blitz:Object_types I've reverse engineered enough of it to keep going, but having a fully labelled version of it would be useful for future, cheers.

23 May 2017, 00:55	#6
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Ah, interesting... It doesn't appear to be in either the AB3 version of bb2objtypes.res or the BB2 version I have here. I've added it anyway to the AmigaCoding list. Be careful here though, and remember that lower-case Newtypes are generally Blitz internal objects, whereas CamelCase Newtypes are generally OS structs as defined in amigalibs.res (and prepended with an underscore in all.res). I was a little confused about that earlier, and it's the OS struct that earok appears to be using in his code. The attachment is the AB3 definition of the .CopList Newtype (the OS-defined one), which is the one you appear to be using earok. It matches the struct defined in the Amiga SDK (includes/graphics/copper.h), but just like for other objects, is different to the Blitz internal .coplist Newtype. Attached Thumbnails

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22 May 2017, 12:48	#2
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Hmmm, that is strange - it's not in the source of bb2objtypes.res either, which is where it should be... So I don't know where it's declared. Perhaps you could add what you've determined to the Blitz Object Types page to help others - partial information is better than none at all! Or send it to me and I can add it for you. I don't know if you've already looked at it, but the AB3 object browser lets you at least see the names and types of the fields in a structure - it might be worth a look.

22 May 2017, 13:02	#4
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Cool, I'll add them anyway and have a look myself. I haven't ever looked at the structure itself so never noticed it was missing (or at least hidden away elsewhere). I'll have a dig through it when I'm in front of my machine at home later on and see what I can find.

23 May 2017, 03:33	#7
earok Registered User Join Date: Dec 2013 Location: Auckland Posts: 3,539	ah, thanks guys. Much appreciated

23 May 2017, 23:13	#8
idrougge Registered User Join Date: Sep 2007 Location: Stockholm Posts: 4,332	It's also not in my bb2objtypes, which I used for adding the other objects to the Amigacoding wiki.

29 August 2018, 00:02	#9
earok Registered User Join Date: Dec 2013 Location: Auckland Posts: 3,539	Is there a place where the complete bb2objtypes.res (with coplist) can be downloaded?

29 August 2018, 22:19	#10
Daedalus Registered User Join Date: Jun 2009 Location: Dublin, then Glasgow Posts: 6,334	Not that I know of. You could download the latest source for it from the AmiBlitz SourceForge site, add the extra definitions needed and compile your own... Maybe Cylon knows where he got his version?

22 June 2019, 05:37	#11
earok Registered User Join Date: Dec 2013 Location: Auckland Posts: 3,539	There seems to be an odd issue with the coplist structure as defined here, there appears to be a missing word (or perhaps there's word that should have been defined as a long) size.l ;0 = not initialised coppos.l ;location in chipmem colors.l sprites.l bpcons.l bplanes.l dot.l customs.l dob.l numbp.w:colpokes.w ;limits fetchwid.w:xand:xshift ;for show calculations (3 words) padding.w ;<- I've added this to correct offsets of ypos etc ypos.w:height:res numsprites.w:numcols:numcustoms aga.w ;24bit=$8000 fetch = $00,$10,$20,$30 resshift.w ;lo,hi,shi = 2 1 0 setup.w ;lines taken for setup cblow.w ;if custom goes below 256 sfetch.w:spres:spif:spwid:sspwid ;sprite mode for display If I don't add that "padding.w" field (and I'm not totally sure where it should go), the YPOS is in Height, Height is in Res, Res in NumSprites etc.

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