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- Category 3, Topic 22
- Message 25 Tue Apr 07, 1987
- NHARRIS [Neil @ Atari] at 14:54 EDT
-
- NEOchrome version 1.0 includes the file format in the manual. Ted is close.
- Here goes with the complete file spec:
-
- Offset Var.Name Length Description
- ------ -------- ------ ----------------------------------
- +0 File ID 1 word Always 0
- +2 Resolution 1 word 0=low, 1=med, 2=high
- +4 Palette 16 words Hardware color palette for picture
- +36 Unused 12 bytes space for file name, NEO does not use.
- +48 CRAMPTR 1 word Color ramp pointers. Bit 15 set if low
- bits are valid. If valid, high nibble of
- low byte is left delimiter, low nibble is
- right delimiter.
- +50 CSCRLSPD 1 word Color scroll speed. Bit 15 set if scroll
- on. Low order byte is # frames per step.
- If negative, scroll is left.
- +52 Duration 1 word # of color steps (defined by CSCRLSPD) to
- display picture before going to next.
- +54 NEOX 1 word Reserved, set to 0. Horizontal offset onto
- canvas for leftmost display edge.
- +56 NEOY 1 word Reserved, set to 0. Vertical offset into
- canvas for topmost edge.
- +56 NEOWIDTH 1 word Reserved, set to 320. Total canvas width.
- +60 NEOHEIGHT 1 word Reserved, set to 200. Total canvass height.
- +62 unused 33 words Reserved for future expansion
- +128 Image 32000 bytes Image data. Future versions may expand this
- based on NEOWIDTH * NEOHEIGHT, for canvas
- sizes larger than screen.
-
- NOTE: Many of the variables here are used by NEOshow (the new slide show) and
- not by NEOchrome itself.
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