star@fluke.UUCP (David Whitlock) (05/20/86)
I know their not, but I assume there is a utility our there that will convert
one format to another...
Could someone point me in the right direction.
--
Dave Whitlock
{decvax!microsof,uw-beaver,ssc-vax,allegra,lbl-csam}!fluke!star
--John Fluke Mfg. Co., 33031 Schoolcraft Road, Livonia, MI 48150cem@intelca.UUCP (05/22/86)
The answer is yes. Both use the IFF format and both can read and write lo-res pictures that the other can read (some redunancy there). I haven't tried to read/write medium and High res images since IMAGES doesn't support them. Note that the backgrounds used in Animator scripts are also lo-res IFF images, but masks and scripts aren't. The truly nice thing about this is that it is entirely possible to transfer files all over the place and be compatible. (I don't know if GraphicCraft is IFF format or not). --Chuck McManis ------------------------------original message-------------------------------- > I know their not, but I assume there is a utility our there that will convert > one format to another... > > Could someone point me in the right direction. > > Dave Whitlock > ----------------------------------------------------------------------------- -- - - - D I S C L A I M E R - - - {ihnp4,fortune}!dual\ All opinions expressed herein are my {qantel,idi}-> !intelca!cem own and not those of my employer, my {ucbvax,hao}!hplabs/ friends, or my avocado plant. :-}
carolyn@cbmvax.cbm.UUCP (Carolyn Scheppner) (05/22/86)
DPaint, Aegis Images and Graphicraft all save their pics in an IFF
ILBM (Interleaved BitMap) format. Each of these programs will at least
load the other's lo-res pics. However, there are some quirks.
Aegis Images only recognizes files that end with ".pic". The version
that I have also seems to have problems recognizing .pics stored in RAM:.
It did load DPaint and Graphicraft files from disk if they were renamed
to end in ".pic". Graphicraft's only problem when loading DPaint and
Images files is that the load is rather slow. Both DPaint and Images
files are compacted and Graphicraft seems to use a very small buffer for
uncompacting. This is probably because Graphicraft was designed so it
could be run on a 256K machine.
Any properly written chunk-oriented IFF ILBM loader should be able
to handle at least the lo-res painting files from all three programs.
Ideally, it would also handle any padding/clipping needed to load a
portion of a bitmap or a higher/lower res bitmap. For examples of
IFF loaders, see ShowILBM.c and SeeILBM.c on the latest IFF disk.
There ARE differences between DPaint, Images, and Graphicraft files.
DPaint and Images save a compacted BODY, Graphicraft an uncompacted BODY.
This is specified in their BMHD (BitMapHeader chunk). DPaint files
include 4 CRNG chunks for color cycling information. Graphicraft files
include a slightly different CCRT chunk for color cycling and a CAMG
(ViewPort modes) chunk. But a proper chunk-oriented loader should just
look at each chunk, taking what it wants and skipping what it doesn't.
Between the BMHD and the BODY (the two necessary chunks), it should not
expect any particular chunks in any particular order.
That's what IFF's all about.
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Carolyn Scheppner -- CBM >>Amiga Technical Support<<
UUCP ...{allegra,caip,ihnp4,seismo}!cbmvax!carolyn
PHONE 215-431-9180
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=stan@amiga.UUCP (Stanley Shepard) (05/23/86)
In article <49@intelca.UUCP> cem@intelca.UUCP (Chuck McManis) writes: >(I don't know if GraphicCraft is IFF format or not). Graphicraft 1.1 is IFF compatible. Stan Shepard Commodore-Amiga Inc. {...!hplabs!pyramid!amiga!stan}
barry@amiga.UUCP (Barry Walsh) (05/23/86)
In article <49@intelca.UUCP> cem@intelca.UUCP (Chuck McManis) writes: >The answer is yes. Both use the IFF format and both can read and write >lo-res pictures that the other can read (some redunancy there). I haven't >tried to read/write medium and High res images since IMAGES doesn't >support them. Note that the backgrounds used in Animator scripts are also >lo-res IFF images, but masks and scripts aren't. The truly nice thing >about this is that it is entirely possible to transfer files all over >the place and be compatible. (I don't know if GraphicCraft is IFF format >or not). > >--Chuck McManis Graphicraft DOES use IFF files for its paintings and brushes. Graphicraft does not compact the image data. The paintings are a FORM with an ILBM that contains a BMHD, CMAP, CAMG, CCRT and a BODY. The brushes are a FORM with an ILBM that contains a BMHD and a BODY.
aic@pucc-j (Craig Norborg aka Doc Pierce) (05/23/86)
In article <3276@vax4.fluke.UUCP> star@fluke.UUCP (David Whitlock) writes: >I know their not, but I assume there is a utility our there that will convert >one format to another... > >Could someone point me in the right direction. Well, I have used both jointly, and they DO work fine together... Only problem I ran into is that Aegis doesn't allow as good of a color rotation as Dpaint...