home *** CD-ROM | disk | FTP | other *** search
-
-
- IFF Registry 11/88
- ==================
-
- ( Note - If anyone notices any omissions, please let me know.
- If anyone is writing unregistered FORMs or chunks, please
- register them. C. Scheppner CBM )
-
- =========================================================================
- Original EA Filetypes and FORMs
- =========================================================================
-
- Filetypes: FORM,PROP,LIST,CAT
-
- -------------------------------------------------------------------------
- Chunks found in more than one type of FORM:
-
- AUTH, CHRS, (c), ANNO, NAME, TEXT
- - Described in EA spec, may be found in some ILBMs
- and other forms.
- AUTH and (c) should be preserved by read/writers
-
- -------------------------------------------------------------------------
- FORM ILBM
- =========
-
- BMHD - Bitmap header
- CMAP - rgb color map
- GRAB - Hot spot
- DEST - Planepick
- SPRT - Sprite info
- CAMG - Amiga Viewmodes
- CCRT - Cycle info (Graphicraft)
- CRNG - Cycle info (DPaint)
- BODY - Interleaved bitplane data
-
- DPPV - DPaintII Perspective chunk (see Third Party Specs)
- DGVW - DigiView private chunk in 21-bit SaveRGB ILBMs
- BHSM - Photon Paint private (see their manual) (appears first in ILBM)
- BHCP - Photon Paint private (see their manual) (in full images)
- BHBA - Photon Paint private (see their manual) (in brushes)
-
- also AUTH, (c), CHRS, etc.
-
-
- ADDENDA
-
- 1. CRNG bit 1 defined as Reverse cycling flag
-
- In DPaintII, Dan Silva has defined bit 1 (next to lowest bit) of
- the CRNG cycling chunk "active" variable as a flag for reverse
- color cycling. If this bit is set, cycle direction is reversed.
- Unfortunately, DPaintII internally uses rate <= RNG_NORATE (36)
- to mean that a cycle range is inactive, and is not too careful
- about the value saved in the CRNG.active variable. This makes
- it impossible to determine programatically whether or not a DPaint
- pic should be cycled.
-
- 2. CAMG bits require masking
-
- Under certain circumstances, unwanted application-specific ViewMode
- bits are saved to or loaded from a CAMG chunk. The SPRITES, VP_HIDE,
- GENLOCK_AUDIO, and GENLOCK_VIDEO flags should be masked out of the
- camg.ViewModes when saving or loading a CAMG chunk. The UWORD
- of masked Amiga viewmodes is stored in the low word of CAMG.Viewmodes.
- The high word of CAMG.Viewmodes is reserved by Commodore and must
- currently be written as zeros, but not assumed to be zeros when read.
-
- #include <graphics/view.h>
- #define BADFLAGS (SPRITES|VP_HIDE|GENLOCK_AUDIO|GENLOCK_VIDEO)
- #define FLAGMASK (~BADFLAGS)
- #define CAMGMASK (FLAGMASK & 0x0000FFFFL)
-
- camg.ViewModes = viewport->Modes & CAMGMASK;
-
-
- 3. ILBMs in ANIM are non-standard
-
- The embedded ILBM forms in an ANIM do not adhere to the ILBM spec
- and technically should have had a different chunk ID. They do
- not contain the required ILBM property BMHD, and instead contain
- an ANHD and delta information for changing the previous image.
- This inconsistency occurred because the original ANIM concept of
- sequential ILBMs was slowly modified, for speed and compactness,
- into a single ILBM followed by frames containing encoded animation
- changes. After much discussion with the authors and third parties
- supporting the ANIM form, it was decided that this inconsistency
- must remain for now to avoid breaking existing products.
-
-
- -------------------------------------------------------------------------
- FORM FTXT
- =========
- FONS - Font specification
- CHRS - Ascii characters and ISO/ANSII standard control sequences
-
- also AUTH, (c), CHRS, etc.
-
- -------------------------------------------------------------------------
- FORM SMUS
- =========
-
- SHDR - Score header
- NAME - Name of score
- INS1 - Instrument
- TRAK - Data chunk for one track
-
- also AUTH, (c), NAME, ANNO, CHRS, etc.
-
- ADDENDA
-
- EA has reserved two new sEvents for SMUS since the IFF release which
- appears in the Addison-Wesley manuals:
-
- SID Value Next Data Byte
- ========= ==============
- #define SID_Clef 135 0=treble, 1=bass, 2=alto, 3=tenor
- #define SID_Tempo 136 beats per second (0-255)
-
-
- -------------------------------------------------------------------------
- FORM 8SVX
- =========
-
- VHDR - Voice header
- ATAK - Attack info
- RLSE - Release info
- BODY - Data samples grouped by octave (may be Fibonacci-delta encoded)
-
- CHAN - Stereo channel chunk (Gold Disk - see third party specs)
- PAN - Stereo pan chunk (Gold Disk - see third party specs)
-
- also AUTH, (c), NAME, ANNO, etc.
-
-
- =========================================================================
- Public Registered Third Party FORMs
- =========================================================================
- FORM ACBM
- =========
- Amiga Contiguous Bitmap (used in AmigaBasic Demos)
- Contains normal ILBM chunks except:
-
- ABIT replaces BODY (ABIT is uncompressed contiguous bitplane data)
-
- -------------------------------------------------------------------------
- FORM AIFF
- =========
- Apple Audio IFF Form for 1 to 32-bit audio samples. By Steve Milne, Apple
- I posted a general description in BIX amiga.dev/iff.
- I don't plan to add it to our Amiga IFF manual.
-
- -------------------------------------------------------------------------
- FORM ANBM
- =========
- Animated bitmap FORM, used in Deluxe Video by Posehn & Case for EA
- Should appear in 1988 IFF manual.
-
- -------------------------------------------------------------------------
- FORM ANIM
- =========
- Cel Animation FORM used by Videoscape-3D (Aegis)
-
- ANHD
- DLTA
-
- ANIM contains embedded "ILBM"'s, all but first not true ILBM's but rather
- containing ANHD (Anim header) and DLTA (changes to create next cell).
-
- Latest ANIM spec is in the May/June 88 AmigaMail, and is also posted on
- BIX in amiga.dev/docs. Spec in August 87 IFF manual is outdated.
- The new spec will appear in 1988 IFF manual.
-
- -------------------------------------------------------------------------
- FORM BANK
- =========
- SoundQuest Editor/Librarian format for MIDI system-exclusive data dump.
- Form spec has not yet been provided.
-
- -------------------------------------------------------------------------
- FORM HEAD
- =========
- Idea processor FORM used by Flow (New Horizons Software)
- Described in current IFF manual.
-
- NEST
- TEXT
- FSCC
-
- -------------------------------------------------------------------------
- FORM MIDI
- =========
- Expecting spec soon - watch BIX amiga.dev/iff
- Circum Design
-
- -------------------------------------------------------------------------
- FORM PGTB
- =========
- ProGram TraceBack diagnostic dump image - John Toebes, S.A.S.
- Presented at Devcon. Should appear in 1988 IFF manual.
-
-
- -------------------------------------------------------------------------
- FORM SYTH
- =========
- SoundQuest Master Librarian format for MIDI system-exclusive driver.
- Form spec has not yet been provided.
-
-
- -------------------------------------------------------------------------
- FORM WORD
- =========
- Word processing FORM used by Prowrite (New Horizons Software)
- See spec in current IFF manual.
-
- FONT
- COLR
- DOC
- HEAD
- FOOT
- PCTS
- PARA
- TABS
- PAGE
- TEXT
- FSCC
- PINF
-
-
-
- =========================================================================
- Private Registered Third Party FORMs
- =========================================================================
- FORM C100
- =========
- Cloanto Italia (private word processing form)
- Chunks C1C0, C1K0, C1F0, C1U0, C1K1
- C1C0 and C1K0 used in C100 forms
- C1F0 and C1U0 used in C100 and FTXT forms
- Also SGR9 SGR29 (label start and end)
-
-
- -------------------------------------------------------------------------
- FORM PDEF
- =========
- Deluxe Print page definition (EA)
-
- -------------------------------------------------------------------------
- FORM RGB4
- =========
- For 4 bit R G B pixel information
-
- COMP (chunk containing compression table for the FORM)
-
- The RGB4 FORM contains a BMHD which will specify 2 as its Compression.
- BMHD compression value 2 has been reserved for this algorithm
- which is a modified Huffman encoding.
-
-
- -------------------------------------------------------------------------
- FORM SHAK
- =========
- Used by Shakespeare, Infinity Software (private)
- Contains embedded ILBMs
-
- -------------------------------------------------------------------------
- FORM VDEO
- =========
- Deluxe Video (EA)
-
-
- =========================================================================
- Proposed Third Party FORMs
- =========================================================================
- FORM SAMP
- =========
- Sound sample FORM proposed by "dissidents" (BIX: jfiore)
- Will be posted there if I get author's permission.
- Designed to work cohesively with the MIDI standard.
-
- -------------------------------------------------------------------------
- FORM TDDD
- =========
- For ray-tracing program Turbo Silver by Impulse
- Will probably be posted on BIX when finalized.
-
-
- =========================================================================
- Unregistered Third Party FORMs
- =========================================================================
- FORM SC3D
- =========
- Sculpt-3D
-
-
- =========================================================================
- Additional Reserved Names
- =========================================================================
-
- Other IDs reserved in original EA IFF 85 spec:
-
- 1. TEXT - a chunk containing plain unformatted ASCII text
- 2. FNTR - raster font
- 3. FNTV - vector font
- 4. GSCR - general-use musical score
- 5. PICS - Macintosh picture
- 6. PLBM - obsolete
- 7. USCR - Uhuru Sound Software musical score
- 8. UVOX - Uhuru Sound Software Macintosh voice
- 9. Property IDs: OPGM, OCPU, OCMP, OSN, UNAM
-
-
- Temporarily reserved by CBM or third parties:
-
- 1. CAT CLIP - to hold various representations of data clipped to clipboard
- 2. FORM ARC - possible archiving form discussed on Usenet a while back
- 3. ATXT, PTXT - temporarily reserved
- 4. ILBM chunks 3DCM, 3DPA - temporarily reserved
- 5. RGBX, CDAT - temporarily reserved
- 6. FORM MSMP, chunks MSHD, SSHD, SSLP - temporarily reserved
- 7. FORM FIGR - temporarily reserved
- 8. LIST MOVI - reserved
- 9. Chunk name END - reserved by CBM for future stream end indication
-