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1999-10-13
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Short: Picasso96 system for Amiga graphics boards
Author: Tobias Abt and Alexander Kneer
Uploader: Tobias Abt <tabt@studbox.uni-stuttgart.de>
Type: gfx/board
Version: 1.42_ateo
This archive contains all you need to get Picasso96 up and running on your
Amiga. Picasso96 offers support for many different Amiga graphics boards,
has builtin HiColor and TrueColor support for intuition screens and many
more...
Requirements:
- Kickstart and Workbench 3.0 (V39),
- Motorola MC68020 processor or better,
- CyberVision64, CyberVision64/3D, Domino, Merlin, oMniBus, PicassoII,
PicassoII+, PicassoIV, Piccolo, Piccolo SD64, Pixel64, Retina BLT Z3,
Spectrum or uaegfx (for UAE, the UNIX/unusable/usable Amiga Emulator).
Picasso96 is ShareWare. Requested fee US$20 or DM30, free to use for
PicassoIV and Pixel64 users (the manufacturers of those cards already
paid for these licences) and the really few ones that already have
sent us a donation.
No distribution restrictions as long as the the archive is complete
and none of the files within is changed. BBS notes may be added.
Short history:
Changes in 1.42:
- rtg.library: fixed small bug with the "ShowModes" environment variable
which did not work when switching from custom flag setting to "all"
- added new environment variable "ENV:Picasso96/PlanarOnlyDIPFDBUF"
which when set to "yes" removes the DIPF_IS_DBUFFER attribute form all
non-planar Picasso96 modes. This is intended for Personal Paint users
that work with animations. PPaint (at least upto version 7.2) does not
check the screen bitmap format properly and assumes it to be planar
which causes severe problems with chunky bitmaps. Using this variable
prevents PPaint to use chunky screen modes for double buffer animations.
- corrected some cases within the new Hi/TrueColor CPU conversion
functions which caused wrong results or crashes especially when no
blitter was available
- optimized CPU line drawing routines (speed increases upto 50% depending
on type of display and line) as well as 24bit ellipse drawing code
- CVision3D:
- fixed garbled text on 8 bit screens (e.g. when typing in CON:), was
caused by blitter running amok when doing too small expansion blits
- added hardware video window (PIP), works now, but still needs some
little work, please test but don't complain :-))
- default memory clock is now 55 MHz (again)
- fixed scan doubler handling
- Pixel64: included correct driver in archive
- Documentation: changed URL to the Picasso96 home page to reflect the
new server location (http://picasso96.cogito.de/)
- new P96Speed (version 1.0) included in archive
Changes in 1.41a:
- fixed integration of new Hi/TrueColor CPU conversion functions
causing severe errors by wrong jumps generated by linker
- CyberVision: fixed bugs in hardware line algorithm (lines were
not drawn in some cases, result was different from CPU routine)
and added support for textured lines.
Changes in 1.41:
- Draw() support in the hardware abstraction layer and can now be
accelerated
- added new Hi/TrueColor CPU conversion functions developed by Stefan
Sommerfeld (thanks a lot!)
- AttachSettings: added support for CVision3D (don't know why I forgot
that in the first place... :-)))
- emulation.library: found at least four wrong conversions in the
support.asm/GetPixel() function
- CVision3D:
- implemented 24bit TrueColor modes (more economical and faster than
32bit and can use blitter in all cases)
- hardware interrupt added in ZorroIII (ZorroII not yet possible)
- minimum memory clock (default) now set to 55MHz
- CyberVision: implemented hardware accelerated line algorithm (solid
lines only)
- Merlin: added some NOPs to avoid color expansion problems (thanks to
Jan-Willem van Wieren for investigating that issue)
- PicassoII: Code adjusted to avoid pixel errors in hicolor fonts and
patterns on some cards. If it still doesn't suffice, activate the
new tooltype "FONTSFIX=Yes" to switch from blitter to CPU rendering
of the afflicted operations which should solve the problem for good.
- RetinaBLTZ3: added support for external MacroSystem video switch, is
now used automatically used. NOTE: if you DON'T own such a device,
add the tool type "DisplayChain=No" to the monitor driver icon!!!
- Picasso96API has three new functions:
- p96EncodeColor
- p96GetBoardDataTagList
- p96GetRTGDataTagList
new Develop.lha archive is available
- french documentation added (unfortunately not quite up to date)
- suomi installation and documentation added (thanks to Mikko Virtanen)
Changes in 1.40:
- fixed bug in rtg.library which could cause Enforcer hits during boot
- fixed bug in rtg.library and PicassoIV.chip which caused crashes if a
PicassoIV with 7.4 ROM was used without p4specials.library
- fixed bug that caused screens sometimes to be black
- new tags for mode id query functions for video output support
- install script changed for ease of installation:
- detects PicassoII's in segmented mode and issues a warning
- new AttachSettings tool for basic settings file maintenance making
things easier for first time Picasso96 users
- Picasso96 is now ShareWare for users who don't own PicassoIV or
Pixel64 boards and the installer script gives a hint about that
- CVision3D: driver now working in ZorroII based Amigas as well
- new environment variable "Picasso96/ShowModes":
- "all": show all possible modes (including multiple modes of the same
depth that are only different in their RGB format)
- "essential": (default) the same behaviour as before, show only modes
that are really different from each other
- user supplied mask of RGB formats: decimal, hex($) or binary(%) value,
see includes section about color formats; example: $e=%1110=14
allows only 24 bit true color and chunky modes
Changes in 1.39:
- implemented CPU function for planar BltPattern() with rp->AreaPtrn (still
no support for bltmask and rp->AreaPtrn together)
- fixed bug that caused enforcer hits with planar bitmaps in fast memory
- remove some stupid mask considerations for Hi/TrueColor bitmaps (which
caused problems on such screens using less than 256 colors)
- Picasso96Mode has some extra features now:
- corrected algorithm to look for unused DisplayIDs when cloning settings
- new menue entry "Setting/Batch change IDs" which is used to renumber
all of the DisplayIDs for the current settings
- menu entry "Mode/Print mode" now prints mode lines for NetBSD 1.3, too
Changes in 1.38:
- fixed a dangerous bug in the clipping code (hi-words of some data
registers were trashed)
- implemented blitter emulation routines for planar bitmaps in fast memory
except for: BltPattern() with rp->AreaPtrn as well as Flood() and Area#?()
calls with rp->TmpRas->RasPtr pointing to fast memory; QBlit functionality
is also missing for all bitmaps in fast memory
- corrected BltBitMap() behavior to be same on all boards when blitting
from bitmaps with less planes than the destination bitmaps has
- new monitor tooltype "GrantDirectAccess": use this if you have problems
with programs that use direct display memory access without using locking
mechanisms like ShapeShifter on ZorroII Amigas with PicassoIV or with any
Amiga using a CyberVision64 board; this tooltype when set to "yes" prevents
bitmaps with different byte swapping requirements to be on the board
simultaneously if they cannot be accessed at the same time without
reconfiguring the board; when using PIP applications on ZorroII PicassoIV
this tool type should be set to "no" (default) to allow all combinations
of screen and PIP color formats
- fixed a small bug that was possibly causing wrong colors with CLUT screens
- PicassoIV: PIP handling (bandwidth calculations) improved, PIP windows
on TrueColor screens are back, now switched off when window is occluded
- Merlin: fixed a bug in blitter accelerated BltPattern causing enforcer
hits in some cases
- Merlin: planar to chunky blits wait for blitter ready flag between planes
- Retina BLT Z3: minimum memory clock is now 55 MHz
- CyberVision64: sprite colors a