84 lines
3.8 KiB
Plaintext
84 lines
3.8 KiB
Plaintext
The reason I chose 804, thats 709 plus my local version increments since
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709.
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Ok first let me say that this is just a beta. There are known cosmetic
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(small) bugs with some of the code. I felt it was necsesary to get
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this stuff into the public ASAP. For instance the X window people
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really need to be using the new graphics system. I am very concerned
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that they have spent alot of time on code they will be re-writing now.
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I asked them to drop me a note but no one replied.
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Anyway, there are few patches to the main amiga source tree all of
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which were nec. and proper. Note however that I made a patch to
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the main sources, sys/sys/ioctl.h had a bug (IOCBASECMD(x) was incorrect.)
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my code depends on this being right so I included my change.
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I did not get to clean up my include messiness in amiga/cc_* stuff
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or in grf_cc stuff, however I did switch the grf_* stuff over to
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the BSD style of users including what they need.
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This release is a major update in the area of graphics. All parts
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are not fully done yet but they work and work solidly. The interface
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(grf) for monitors can be considered frozen (we may add cosmetics
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later but nothing funcitonal.) So that people wishing to write
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monitor code can do so now.
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If you are going to write a monitor you can use my code as an example
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it may get complex and overwhelming though because of the complexity
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of supporting the custom chips. So you may want to start of only
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with the grf_* stuff and then consult the grf_cc stuff when needed.
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In the area of the ite. I have consolidated all the monitor dependent
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files into a single ite_std.c file. This was possible due to the
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new view device (more on that in a little bit) The ite now has
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support for _underline_ and BOLD attributes as well as continuing
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support of inverse as before. Becuase of these additions the font
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programs need to be updated (I added the code in fontdumper and
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changed the kernel_font.c.distrib to get you started.) The only
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thing that gets added is kernel_font_(baseline|boldsmear) attributes.
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All known ite scrolling bugs and repeating bugs are fixed in this version.
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(actually there is one, but I need to get this out.)
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The new ``/dev/view??'' are the character devices that replace the
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old ``/dev/grf''. These new psuedo-devices represent a single monitor
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screen. They go through the new grf interface in a portable way.
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All programs will interface graphics on Amiga-BSD through these devices.
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(ite does)
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I will shortly (a day or two) be releasing some example code on how
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to program with the view?? devices. For now let me give you an
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example on how to map the bitmap data into your process with the
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view device.
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bitplane_data = mmap (0, size, PROT_READ|PROT_WRITE, MAP_FILE, fdesc, 0);
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``size'' is the number of bytes of bitmap data to map. ``fdesc'' is the
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file descriptor returned from open().
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There are some major bugs with mmap()'ing the 709 grf device. The largest
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being the allowing of processes to quickly vm_fault the kernel. (one access).
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These are gone now.
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Support for the custom hardware is now in the kernel, things such as a
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``/dev/audio'' will probably be written. Its easy now. Any way, the ite
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bell now goes through this interface.
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Some missing stuff: mouse pointer. sorry sprites are not retargetable*
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X windows is however and when that is done you will get your pointer
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back (exactly what was it doing there anyway?)
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A screen blanker. This is a very easy one I hope to have installed
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into the system in a upcoming patch (maybe 20 lines of code needed)
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Again I need to get this out now so it was skipped.
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I hope everyone enjoys the new code features. Now i can try and get
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emacs working...
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Chris...
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(this was written after a 20 hour stint to try and finalize stuff please
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forgive mispellings and improper grammar. thanks)
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--
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(* spites could be but I didn't make them.)
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