Home » Archimedes archive » Archimedes World » AW-1996-07.adf » !Gamma_Gamma » !Gamma/Doc/Man_Text
!Gamma/Doc/Man_Text
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Archimedes World » AW-1996-07.adf » !Gamma_Gamma |
| Filename: | !Gamma/Doc/Man_Text |
| Read OK: | ✔ |
| File size: | 13C1 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
Gamma - Gamma correction for the Risc PC
=======================================
Why did I write Gamma?
----------------------
Basically, I was sick of having absolutely no colour correction software in
RISC OS even though the hardware has been capable of it since the release of
the Risc PC. This program is by no means perfect and I have a couple of ideas I
would like to add to it at some stage. It is however, much better than nothing
which is what we have had to put up with...
For the uninitiated here are some uses for display gamma correction:
1. Improve the appearance of the screen display.
2. Allow the monitor to take (some) account of inaccuracies in a colour
printers output so that images may be created/modified on screen which will
more closely reflect the printed versions.
3. Help with designing images which are to be transferred to another computer
platform for output. Recent Macs, for example, appear to have a default gamma
setting of around 1.70
4. Provide a nice easy to use software contrast/brightness control without you
having to fiddle with knobs on the monitor.
License details
---------------
The application Public Domain. While I retain copyright the program may be
distributed freely as long as it is not modified in any way and no charge is
made for it. The Relocatable module included with the application is provided
under a different (and more open) licensing agreement. See the file 'ModuleDoc'
for details.
Requirements
------------
Risc PC600 or 700 - probably the A7000 and later hardware too as long as it uses
a superset of RISC OS 3.50 and VIDC20 hardware.
The 'Drawfile' draw rendering module is required to display the example
drawfile.
Use
---
Provides simple colour correction for the screen display.
Load the application in the normal way - by double clicking. Click SELECT on
the icon bar icon to open the Gamma tools bar and the default modification
method window.
The Gamma tools bar
-------------------
This small window provides four icons currently.
From left to right:
The Display Curve modification window
-------------------------------------
This window allows you to deform the Colour curve by dragging control points
on a bezier curve. Turn the Combined option off to provide separate curves
for the Red, Green and Blue channels. Choose Reset all to reset to default
values. The three option buttons labelled R,G and B control display of the
Red,Green and Blue curves when Combined is off. It can often be useful to
turn�display�of one of the curves off while modifying another. The three
small Reset buttons allow you to reset the Red, Green or Blue channels
separately.
The Display�Gamma modification window
-------------------------------------
Use the bump arrows to alter the gamma curve. If the 'Combined' option is
turned on the Red, Green and Blue values will change together no matter which
of the bump arrows you use. Turning the Combined option off will allow you to
change the Red, Green and Blue gamma vales independently. The Reset button
will reset the curve to the default of 1.00 and turn the combined option on
again.
The Example drawfile window
---------------------------
This utilises the DrawFile module (if it is available) to display an example
drawfile in a window. It can be useful to have this window open while
modifying the settings.
The Save button
---------------
This opens a save dialogue allowing you to save the current settings.
To reload a Gamma file drag it to the Gamma application icon or one of the
programs windows.
In addition, clicking MENU over either the Display�Curve or Display�Gamma
windows will give you a small menu with the following items:
Save>File>
----------
This leads to a save dialogue box which is identical to the one opened by
clicking on the save button in the Gamma tools window.
Save>In !Boot
-------------
This will install the current gamma settings in your !Boot application with a
suitable section of code which will install the settings on machine reset.
This saves you having to load a particular gamma setting every time you reset
your machine/switch on.
Reset all
---------
This loads a default gamma file stored within the !Gamma application itself.
Contacting the Author
---------------------
If you wish to contact the author of this software, either to report a bug,
suggest new features, praise or (horrors!) criticise the program then the
preferred method is via email to:
rdavison@es.co.nz
or, failing that by snail mail to -
Rob Davison,
1RD Wyndham,
Southland
NEW ZEALAND
(yes, that really is my�address!)
Version History
---------------
0.01 - this program was descended from something written on the A440+PCATs
colour card. Went nowhere.
0.02 - to PixelEyes and Are Leistad.
0.03 - to Jeremy Cook. Gamma code in a module.
- used Compo SWI block because if a guy can't rip his own allocation
then who's can he rip? :-)
0.05 - fixed curve min/max settings, added save, made toolbar behave properly.
0.06 - fixed small bug reported by Jeremy and crunched for release.
00000000 47 61 6d 6d 61 20 2d 20 47 61 6d 6d 61 20 63 6f |Gamma - Gamma co| 00000010 72 72 65 63 74 69 6f 6e 20 66 6f 72 20 74 68 65 |rrection for the| 00000020 20 52 69 73 63 20 50 43 0a 3d 3d 3d 3d 3d 3d 3d | Risc PC.=======| 00000030 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================| * 00000050 0a 0a 57 68 79 20 64 69 64 20 49 20 77 72 69 74 |..Why did I writ| 00000060 65 20 47 61 6d 6d 61 3f 0a 2d 2d 2d 2d 2d 2d 2d |e Gamma?.-------| 00000070 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a |---------------.| 00000080 42 61 73 69 63 61 6c 6c 79 2c 20 49 20 77 61 73 |Basically, I was| 00000090 20 73 69 63 6b 20 6f 66 20 68 61 76 69 6e 67 20 | sick of having | 000000a0 61 62 73 6f 6c 75 74 65 6c 79 20 6e 6f 20 63 6f |absolutely no co| 000000b0 6c 6f 75 72 20 63 6f 72 72 65 63 74 69 6f 6e 20 |lour correction | 000000c0 73 6f 66 74 77 61 72 65 20 69 6e 0a 52 49 53 43 |software in.RISC| 000000d0 20 4f 53 20 65 76 65 6e 20 74 68 6f 75 67 68 20 | OS even though | 000000e0 74 68 65 20 68 61 72 64 77 61 72 65 20 68 61 73 |the hardware has| 000000f0 20 62 65 65 6e 20 63 61 70 61 62 6c 65 20 6f 66 | been capable of| 00000100 20 69 74 20 73 69 6e 63 65 20 74 68 65 20 72 65 | it since the re| 00000110 6c 65 61 73 65 20 6f 66 0a 74 68 65 20 52 69 73 |lease of.the Ris| 00000120 63 20 50 43 2e 20 54 68 69 73 20 70 72 6f 67 72 |c PC. This progr| 00000130 61 6d 20 69 73 20 62 79 20 6e 6f 20 6d 65 61 6e |am is by no mean| 00000140 73 20 70 65 72 66 65 63 74 20 61 6e 64 20 49 20 |s perfect and I | 00000150 68 61 76 65 20 61 20 63 6f 75 70 6c 65 20 6f 66 |have a couple of| 00000160 20 69 64 65 61 73 20 49 0a 77 6f 75 6c 64 20 6c | ideas I.would l| 00000170 69 6b 65 20 74 6f 20 61 64 64 20 74 6f 20 69 74 |ike to add to it| 00000180 20 61 74 20 73 6f 6d 65 20 73 74 61 67 65 2e 20 | at some stage. | 00000190 49 74 20 69 73 20 68 6f 77 65 76 65 72 2c 20 6d |It is however, m| 000001a0 75 63 68 20 62 65 74 74 65 72 20 74 68 61 6e 20 |uch better than | 000001b0 6e 6f 74 68 69 6e 67 0a 77 68 69 63 68 20 69 73 |nothing.which is| 000001c0 20 77 68 61 74 20 77 65 20 68 61 76 65 20 68 61 | what we have ha| 000001d0 64 20 74 6f 20 70 75 74 20 75 70 20 77 69 74 68 |d to put up with| 000001e0 2e 2e 2e 0a 0a 46 6f 72 20 74 68 65 20 75 6e 69 |.....For the uni| 000001f0 6e 69 74 69 61 74 65 64 20 68 65 72 65 20 61 72 |nitiated here ar| 00000200 65 20 73 6f 6d 65 20 75 73 65 73 20 66 6f 72 20 |e some uses for | 00000210 64 69 73 70 6c 61 79 20 67 61 6d 6d 61 20 63 6f |display gamma co| 00000220 72 72 65 63 74 69 6f 6e 3a 0a 0a 31 2e 20 49 6d |rrection:..1. Im| 00000230 70 72 6f 76 65 20 74 68 65 20 61 70 70 65 61 72 |prove the appear| 00000240 61 6e 63 65 20 6f 66 20 74 68 65 20 73 63 72 65 |ance of the scre| 00000250 65 6e 20 64 69 73 70 6c 61 79 2e 0a 0a 32 2e 20 |en display...2. | 00000260 41 6c 6c 6f 77 20 74 68 65 20 6d 6f 6e 69 74 6f |Allow the monito| 00000270 72 20 74 6f 20 74 61 6b 65 20 28 73 6f 6d 65 29 |r to take (some)| 00000280 20 61 63 63 6f 75 6e 74 20 6f 66 20 69 6e 61 63 | account of inac| 00000290 63 75 72 61 63 69 65 73 20 69 6e 20 61 20 63 6f |curacies in a co| 000002a0 6c 6f 75 72 0a 70 72 69 6e 74 65 72 73 20 6f 75 |lour.printers ou| 000002b0 74 70 75 74 20 73 6f 20 74 68 61 74 20 69 6d 61 |tput so that ima| 000002c0 67 65 73 20 6d 61 79 20 62 65 20 63 72 65 61 74 |ges may be creat| 000002d0 65 64 2f 6d 6f 64 69 66 69 65 64 20 6f 6e 20 73 |ed/modified on s| 000002e0 63 72 65 65 6e 20 77 68 69 63 68 20 77 69 6c 6c |creen which will| 000002f0 0a 6d 6f 72 65 20 63 6c 6f 73 65 6c 79 20 72 65 |.more closely re| 00000300 66 6c 65 63 74 20 74 68 65 20 70 72 69 6e 74 65 |flect the printe| 00000310 64 20 76 65 72 73 69 6f 6e 73 2e 0a 0a 33 2e 20 |d versions...3. | 00000320 48 65 6c 70 20 77 69 74 68 20 64 65 73 69 67 6e |Help with design| 00000330 69 6e 67 20 69 6d 61 67 65 73 20 77 68 69 63 68 |ing images which| 00000340 20 61 72 65 20 74 6f 20 62 65 20 74 72 61 6e 73 | are to be trans| 00000350 66 65 72 72 65 64 20 74 6f 20 61 6e 6f 74 68 65 |ferred to anothe| 00000360 72 20 63 6f 6d 70 75 74 65 72 0a 70 6c 61 74 66 |r computer.platf| 00000370 6f 72 6d 20 66 6f 72 20 6f 75 74 70 75 74 2e 20 |orm for output. | 00000380 52 65 63 65 6e 74 20 4d 61 63 73 2c 20 66 6f 72 |Recent Macs, for| 00000390 20 65 78 61 6d 70 6c 65 2c 20 61 70 70 65 61 72 | example, appear| 000003a0 20 74 6f 20 68 61 76 65 20 61 20 64 65 66 61 75 | to have a defau| 000003b0 6c 74 20 67 61 6d 6d 61 0a 73 65 74 74 69 6e 67 |lt gamma.setting| 000003c0 20 6f 66 20 61 72 6f 75 6e 64 20 31 2e 37 30 0a | of around 1.70.| 000003d0 0a 34 2e 20 50 72 6f 76 69 64 65 20 61 20 6e 69 |.4. Provide a ni| 000003e0 63 65 20 65 61 73 79 20 74 6f 20 75 73 65 20 73 |ce easy to use s| 000003f0 6f 66 74 77 61 72 65 20 63 6f 6e 74 72 61 73 74 |oftware contrast| 00000400 2f 62 72 69 67 68 74 6e 65 73 73 20 63 6f 6e 74 |/brightness cont| 00000410 72 6f 6c 20 77 69 74 68 6f 75 74 20 79 6f 75 0a |rol without you.| 00000420 68 61 76 69 6e 67 20 74 6f 20 66 69 64 64 6c 65 |having to fiddle| 00000430 20 77 69 74 68 20 6b 6e 6f 62 73 20 6f 6e 20 74 | with knobs on t| 00000440 68 65 20 6d 6f 6e 69 74 6f 72 2e 0a 0a 4c 69 63 |he monitor...Lic| 00000450 65 6e 73 65 20 64 65 74 61 69 6c 73 0a 2d 2d 2d |ense details.---| 00000460 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 54 68 65 |------------.The| 00000470 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 50 75 62 | application Pub| 00000480 6c 69 63 20 44 6f 6d 61 69 6e 2e 20 57 68 69 6c |lic Domain. Whil| 00000490 65 20 49 20 72 65 74 61 69 6e 20 63 6f 70 79 72 |e I retain copyr| 000004a0 69 67 68 74 20 74 68 65 20 70 72 6f 67 72 61 6d |ight the program| 000004b0 20 6d 61 79 20 62 65 0a 64 69 73 74 72 69 62 75 | may be.distribu| 000004c0 74 65 64 20 66 72 65 65 6c 79 20 61 73 20 6c 6f |ted freely as lo| 000004d0 6e 67 20 61 73 20 69 74 20 69 73 20 6e 6f 74 20 |ng as it is not | 000004e0 6d 6f 64 69 66 69 65 64 20 69 6e 20 61 6e 79 20 |modified in any | 000004f0 77 61 79 20 61 6e 64 20 6e 6f 20 63 68 61 72 67 |way and no charg| 00000500 65 20 69 73 0a 6d 61 64 65 20 66 6f 72 20 69 74 |e is.made for it| 00000510 2e 20 54 68 65 20 52 65 6c 6f 63 61 74 61 62 6c |. The Relocatabl| 00000520 65 20 6d 6f 64 75 6c 65 20 69 6e 63 6c 75 64 65 |e module include| 00000530 64 20 77 69 74 68 20 74 68 65 20 61 70 70 6c 69 |d with the appli| 00000540 63 61 74 69 6f 6e 20 69 73 20 70 72 6f 76 69 64 |cation is provid| 00000550 65 64 0a 75 6e 64 65 72 20 61 20 64 69 66 66 65 |ed.under a diffe| 00000560 72 65 6e 74 20 28 61 6e 64 20 6d 6f 72 65 20 6f |rent (and more o| 00000570 70 65 6e 29 20 6c 69 63 65 6e 73 69 6e 67 20 61 |pen) licensing a| 00000580 67 72 65 65 6d 65 6e 74 2e 20 53 65 65 20 74 68 |greement. See th| 00000590 65 20 66 69 6c 65 20 27 4d 6f 64 75 6c 65 44 6f |e file 'ModuleDo| 000005a0 63 27 0a 66 6f 72 20 64 65 74 61 69 6c 73 2e 0a |c'.for details..| 000005b0 0a 52 65 71 75 69 72 65 6d 65 6e 74 73 0a 2d 2d |.Requirements.--| 000005c0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 52 69 73 63 20 |----------.Risc | 000005d0 50 43 36 30 30 20 6f 72 20 37 30 30 20 2d 20 70 |PC600 or 700 - p| 000005e0 72 6f 62 61 62 6c 79 20 74 68 65 20 41 37 30 30 |robably the A700| 000005f0 30 20 61 6e 64 20 6c 61 74 65 72 20 68 61 72 64 |0 and later hard| 00000600 77 61 72 65 20 74 6f 6f 20 61 73 20 6c 6f 6e 67 |ware too as long| 00000610 20 61 73 20 69 74 20 75 73 65 73 0a 61 20 73 75 | as it uses.a su| 00000620 70 65 72 73 65 74 20 6f 66 20 52 49 53 43 20 4f |perset of RISC O| 00000630 53 20 33 2e 35 30 20 61 6e 64 20 56 49 44 43 32 |S 3.50 and VIDC2| 00000640 30 20 68 61 72 64 77 61 72 65 2e 0a 54 68 65 20 |0 hardware..The | 00000650 27 44 72 61 77 66 69 6c 65 27 20 64 72 61 77 20 |'Drawfile' draw | 00000660 72 65 6e 64 65 72 69 6e 67 20 6d 6f 64 75 6c 65 |rendering module| 00000670 20 69 73 20 72 65 71 75 69 72 65 64 20 74 6f 20 | is required to | 00000680 64 69 73 70 6c 61 79 20 74 68 65 20 65 78 61 6d |display the exam| 00000690 70 6c 65 0a 64 72 61 77 66 69 6c 65 2e 0a 0a 55 |ple.drawfile...U| 000006a0 73 65 0a 2d 2d 2d 0a 50 72 6f 76 69 64 65 73 20 |se.---.Provides | 000006b0 73 69 6d 70 6c 65 20 63 6f 6c 6f 75 72 20 63 6f |simple colour co| 000006c0 72 72 65 63 74 69 6f 6e 20 66 6f 72 20 74 68 65 |rrection for the| 000006d0 20 73 63 72 65 65 6e 20 64 69 73 70 6c 61 79 2e | screen display.| 000006e0 0a 0a 4c 6f 61 64 20 74 68 65 20 61 70 70 6c 69 |..Load the appli| 000006f0 63 61 74 69 6f 6e 20 69 6e 20 74 68 65 20 6e 6f |cation in the no| 00000700 72 6d 61 6c 20 77 61 79 20 2d 20 62 79 20 64 6f |rmal way - by do| 00000710 75 62 6c 65 20 63 6c 69 63 6b 69 6e 67 2e 20 43 |uble clicking. C| 00000720 6c 69 63 6b 20 53 45 4c 45 43 54 20 6f 6e 0a 74 |lick SELECT on.t| 00000730 68 65 20 69 63 6f 6e 20 62 61 72 20 69 63 6f 6e |he icon bar icon| 00000740 20 74 6f 20 6f 70 65 6e 20 74 68 65 20 47 61 6d | to open the Gam| 00000750 6d 61 20 74 6f 6f 6c 73 20 62 61 72 20 61 6e 64 |ma tools bar and| 00000760 20 74 68 65 20 64 65 66 61 75 6c 74 20 6d 6f 64 | the default mod| 00000770 69 66 69 63 61 74 69 6f 6e 0a 6d 65 74 68 6f 64 |ification.method| 00000780 20 77 69 6e 64 6f 77 2e 0a 0a 54 68 65 20 47 61 | window...The Ga| 00000790 6d 6d 61 20 74 6f 6f 6c 73 20 62 61 72 0a 2d 2d |mma tools bar.--| 000007a0 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| 000007b0 2d 0a 54 68 69 73 20 73 6d 61 6c 6c 20 77 69 6e |-.This small win| 000007c0 64 6f 77 20 70 72 6f 76 69 64 65 73 20 66 6f 75 |dow provides fou| 000007d0 72 20 69 63 6f 6e 73 20 63 75 72 72 65 6e 74 6c |r icons currentl| 000007e0 79 2e 0a 0a 46 72 6f 6d 20 6c 65 66 74 20 74 6f |y...From left to| 000007f0 20 72 69 67 68 74 3a 0a 0a 54 68 65 20 44 69 73 | right:..The Dis| 00000800 70 6c 61 79 20 43 75 72 76 65 20 6d 6f 64 69 66 |play Curve modif| 00000810 69 63 61 74 69 6f 6e 20 77 69 6e 64 6f 77 0a 2d |ication window.-| 00000820 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000840 2d 2d 2d 2d 0a 54 68 69 73 20 77 69 6e 64 6f 77 |----.This window| 00000850 20 61 6c 6c 6f 77 73 20 79 6f 75 20 74 6f 20 64 | allows you to d| 00000860 65 66 6f 72 6d 20 74 68 65 20 43 6f 6c 6f 75 72 |eform the Colour| 00000870 20 63 75 72 76 65 20 62 79 20 64 72 61 67 67 69 | curve by draggi| 00000880 6e 67 20 63 6f 6e 74 72 6f 6c 20 70 6f 69 6e 74 |ng control point| 00000890 73 0a 6f 6e 20 61 20 62 65 7a 69 65 72 20 63 75 |s.on a bezier cu| 000008a0 72 76 65 2e 20 54 75 72 6e 20 74 68 65 20 43 6f |rve. Turn the Co| 000008b0 6d 62 69 6e 65 64 20 6f 70 74 69 6f 6e 20 6f 66 |mbined option of| 000008c0 66 20 74 6f 20 70 72 6f 76 69 64 65 20 73 65 70 |f to provide sep| 000008d0 61 72 61 74 65 20 63 75 72 76 65 73 0a 66 6f 72 |arate curves.for| 000008e0 20 74 68 65 20 52 65 64 2c 20 47 72 65 65 6e 20 | the Red, Green | 000008f0 61 6e 64 20 42 6c 75 65 20 63 68 61 6e 6e 65 6c |and Blue channel| 00000900 73 2e 20 43 68 6f 6f 73 65 20 52 65 73 65 74 20 |s. Choose Reset | 00000910 61 6c 6c 20 74 6f 20 72 65 73 65 74 20 74 6f 20 |all to reset to | 00000920 64 65 66 61 75 6c 74 0a 76 61 6c 75 65 73 2e 20 |default.values. | 00000930 54 68 65 20 74 68 72 65 65 20 6f 70 74 69 6f 6e |The three option| 00000940 20 62 75 74 74 6f 6e 73 20 6c 61 62 65 6c 6c 65 | buttons labelle| 00000950 64 20 52 2c 47 20 61 6e 64 20 42 20 63 6f 6e 74 |d R,G and B cont| 00000960 72 6f 6c 20 64 69 73 70 6c 61 79 20 6f 66 20 74 |rol display of t| 00000970 68 65 0a 52 65 64 2c 47 72 65 65 6e 20 61 6e 64 |he.Red,Green and| 00000980 20 42 6c 75 65 20 63 75 72 76 65 73 20 77 68 65 | Blue curves whe| 00000990 6e 20 43 6f 6d 62 69 6e 65 64 20 69 73 20 6f 66 |n Combined is of| 000009a0 66 2e 20 49 74 20 63 61 6e 20 6f 66 74 65 6e 20 |f. It can often | 000009b0 62 65 20 75 73 65 66 75 6c 20 74 6f 0a 74 75 72 |be useful to.tur| 000009c0 6e a0 64 69 73 70 6c 61 79 a0 6f 66 20 6f 6e 65 |n.display.of one| 000009d0 20 6f 66 20 74 68 65 20 63 75 72 76 65 73 20 6f | of the curves o| 000009e0 66 66 20 77 68 69 6c 65 20 6d 6f 64 69 66 79 69 |ff while modifyi| 000009f0 6e 67 20 61 6e 6f 74 68 65 72 2e 20 54 68 65 20 |ng another. The | 00000a00 74 68 72 65 65 0a 73 6d 61 6c 6c 20 52 65 73 65 |three.small Rese| 00000a10 74 20 62 75 74 74 6f 6e 73 20 61 6c 6c 6f 77 20 |t buttons allow | 00000a20 79 6f 75 20 74 6f 20 72 65 73 65 74 20 74 68 65 |you to reset the| 00000a30 20 52 65 64 2c 20 47 72 65 65 6e 20 6f 72 20 42 | Red, Green or B| 00000a40 6c 75 65 20 63 68 61 6e 6e 65 6c 73 0a 73 65 70 |lue channels.sep| 00000a50 61 72 61 74 65 6c 79 2e 0a 0a 54 68 65 20 44 69 |arately...The Di| 00000a60 73 70 6c 61 79 a0 47 61 6d 6d 61 20 6d 6f 64 69 |splay.Gamma modi| 00000a70 66 69 63 61 74 69 6f 6e 20 77 69 6e 64 6f 77 0a |fication window.| 00000a80 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000aa0 2d 2d 2d 2d 2d 0a 55 73 65 20 74 68 65 20 62 75 |-----.Use the bu| 00000ab0 6d 70 20 61 72 72 6f 77 73 20 74 6f 20 61 6c 74 |mp arrows to alt| 00000ac0 65 72 20 74 68 65 20 67 61 6d 6d 61 20 63 75 72 |er the gamma cur| 00000ad0 76 65 2e 20 49 66 20 74 68 65 20 27 43 6f 6d 62 |ve. If the 'Comb| 00000ae0 69 6e 65 64 27 20 6f 70 74 69 6f 6e 20 69 73 0a |ined' option is.| 00000af0 74 75 72 6e 65 64 20 6f 6e 20 74 68 65 20 52 65 |turned on the Re| 00000b00 64 2c 20 47 72 65 65 6e 20 61 6e 64 20 42 6c 75 |d, Green and Blu| 00000b10 65 20 76 61 6c 75 65 73 20 77 69 6c 6c 20 63 68 |e values will ch| 00000b20 61 6e 67 65 20 74 6f 67 65 74 68 65 72 20 6e 6f |ange together no| 00000b30 20 6d 61 74 74 65 72 20 77 68 69 63 68 0a 6f 66 | matter which.of| 00000b40 20 74 68 65 20 62 75 6d 70 20 61 72 72 6f 77 73 | the bump arrows| 00000b50 20 79 6f 75 20 75 73 65 2e 20 54 75 72 6e 69 6e | you use. Turnin| 00000b60 67 20 74 68 65 20 43 6f 6d 62 69 6e 65 64 20 6f |g the Combined o| 00000b70 70 74 69 6f 6e 20 6f 66 66 20 77 69 6c 6c 20 61 |ption off will a| 00000b80 6c 6c 6f 77 20 79 6f 75 20 74 6f 0a 63 68 61 6e |llow you to.chan| 00000b90 67 65 20 74 68 65 20 52 65 64 2c 20 47 72 65 65 |ge the Red, Gree| 00000ba0 6e 20 61 6e 64 20 42 6c 75 65 20 67 61 6d 6d 61 |n and Blue gamma| 00000bb0 20 76 61 6c 65 73 20 69 6e 64 65 70 65 6e 64 65 | vales independe| 00000bc0 6e 74 6c 79 2e 20 54 68 65 20 52 65 73 65 74 20 |ntly. The Reset | 00000bd0 62 75 74 74 6f 6e 0a 77 69 6c 6c 20 72 65 73 65 |button.will rese| 00000be0 74 20 74 68 65 20 63 75 72 76 65 20 74 6f 20 74 |t the curve to t| 00000bf0 68 65 20 64 65 66 61 75 6c 74 20 6f 66 20 31 2e |he default of 1.| 00000c00 30 30 20 61 6e 64 20 74 75 72 6e 20 74 68 65 20 |00 and turn the | 00000c10 63 6f 6d 62 69 6e 65 64 20 6f 70 74 69 6f 6e 20 |combined option | 00000c20 6f 6e 0a 61 67 61 69 6e 2e 0a 0a 54 68 65 20 45 |on.again...The E| 00000c30 78 61 6d 70 6c 65 20 64 72 61 77 66 69 6c 65 20 |xample drawfile | 00000c40 77 69 6e 64 6f 77 0a 2d 2d 2d 2d 2d 2d 2d 2d 2d |window.---------| 00000c50 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| 00000c60 2d 2d 0a 54 68 69 73 20 75 74 69 6c 69 73 65 73 |--.This utilises| 00000c70 20 74 68 65 20 44 72 61 77 46 69 6c 65 20 6d 6f | the DrawFile mo| 00000c80 64 75 6c 65 20 28 69 66 20 69 74 20 69 73 20 61 |dule (if it is a| 00000c90 76 61 69 6c 61 62 6c 65 29 20 74 6f 20 64 69 73 |vailable) to dis| 00000ca0 70 6c 61 79 20 61 6e 20 65 78 61 6d 70 6c 65 0a |play an example.| 00000cb0 64 72 61 77 66 69 6c 65 20 69 6e 20 61 20 77 69 |drawfile in a wi| 00000cc0 6e 64 6f 77 2e 20 49 74 20 63 61 6e 20 62 65 20 |ndow. It can be | 00000cd0 75 73 65 66 75 6c 20 74 6f 20 68 61 76 65 20 74 |useful to have t| 00000ce0 68 69 73 20 77 69 6e 64 6f 77 20 6f 70 65 6e 20 |his window open | 00000cf0 77 68 69 6c 65 0a 6d 6f 64 69 66 79 69 6e 67 20 |while.modifying | 00000d00 74 68 65 20 73 65 74 74 69 6e 67 73 2e 0a 0a 54 |the settings...T| 00000d10 68 65 20 53 61 76 65 20 62 75 74 74 6f 6e 0a 2d |he Save button.-| 00000d20 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 54 |--------------.T| 00000d30 68 69 73 20 6f 70 65 6e 73 20 61 20 73 61 76 65 |his opens a save| 00000d40 20 64 69 61 6c 6f 67 75 65 20 61 6c 6c 6f 77 69 | dialogue allowi| 00000d50 6e 67 20 79 6f 75 20 74 6f 20 73 61 76 65 20 74 |ng you to save t| 00000d60 68 65 20 63 75 72 72 65 6e 74 20 73 65 74 74 69 |he current setti| 00000d70 6e 67 73 2e 0a 54 6f 20 72 65 6c 6f 61 64 20 61 |ngs..To reload a| 00000d80 20 47 61 6d 6d 61 20 66 69 6c 65 20 64 72 61 67 | Gamma file drag| 00000d90 20 69 74 20 74 6f 20 74 68 65 20 47 61 6d 6d 61 | it to the Gamma| 00000da0 20 61 70 70 6c 69 63 61 74 69 6f 6e 20 69 63 6f | application ico| 00000db0 6e 20 6f 72 20 6f 6e 65 20 6f 66 20 74 68 65 0a |n or one of the.| 00000dc0 70 72 6f 67 72 61 6d 73 20 77 69 6e 64 6f 77 73 |programs windows| 00000dd0 2e 0a 0a 49 6e 20 61 64 64 69 74 69 6f 6e 2c 20 |...In addition, | 00000de0 63 6c 69 63 6b 69 6e 67 20 4d 45 4e 55 20 6f 76 |clicking MENU ov| 00000df0 65 72 20 65 69 74 68 65 72 20 74 68 65 20 44 69 |er either the Di| 00000e00 73 70 6c 61 79 a0 43 75 72 76 65 20 6f 72 20 44 |splay.Curve or D| 00000e10 69 73 70 6c 61 79 a0 47 61 6d 6d 61 0a 77 69 6e |isplay.Gamma.win| 00000e20 64 6f 77 73 20 77 69 6c 6c 20 67 69 76 65 20 79 |dows will give y| 00000e30 6f 75 20 61 20 73 6d 61 6c 6c 20 6d 65 6e 75 20 |ou a small menu | 00000e40 77 69 74 68 20 74 68 65 20 66 6f 6c 6c 6f 77 69 |with the followi| 00000e50 6e 67 20 69 74 65 6d 73 3a 0a 0a 0a 53 61 76 65 |ng items:...Save| 00000e60 3e 46 69 6c 65 3e 0a 2d 2d 2d 2d 2d 2d 2d 2d 2d |>File>.---------| 00000e70 2d 0a 54 68 69 73 20 6c 65 61 64 73 20 74 6f 20 |-.This leads to | 00000e80 61 20 73 61 76 65 20 64 69 61 6c 6f 67 75 65 20 |a save dialogue | 00000e90 62 6f 78 20 77 68 69 63 68 20 69 73 20 69 64 65 |box which is ide| 00000ea0 6e 74 69 63 61 6c 20 74 6f 20 74 68 65 20 6f 6e |ntical to the on| 00000eb0 65 20 6f 70 65 6e 65 64 20 62 79 0a 63 6c 69 63 |e opened by.clic| 00000ec0 6b 69 6e 67 20 6f 6e 20 74 68 65 20 73 61 76 65 |king on the save| 00000ed0 20 62 75 74 74 6f 6e 20 69 6e 20 74 68 65 20 47 | button in the G| 00000ee0 61 6d 6d 61 20 74 6f 6f 6c 73 20 77 69 6e 64 6f |amma tools windo| 00000ef0 77 2e 0a 0a 53 61 76 65 3e 49 6e 20 21 42 6f 6f |w...Save>In !Boo| 00000f00 74 0a 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a |t.-------------.| 00000f10 54 68 69 73 20 77 69 6c 6c 20 69 6e 73 74 61 6c |This will instal| 00000f20 6c 20 74 68 65 20 63 75 72 72 65 6e 74 20 67 61 |l the current ga| 00000f30 6d 6d 61 20 73 65 74 74 69 6e 67 73 20 69 6e 20 |mma settings in | 00000f40 79 6f 75 72 20 21 42 6f 6f 74 20 61 70 70 6c 69 |your !Boot appli| 00000f50 63 61 74 69 6f 6e 20 77 69 74 68 20 61 0a 73 75 |cation with a.su| 00000f60 69 74 61 62 6c 65 20 73 65 63 74 69 6f 6e 20 6f |itable section o| 00000f70 66 20 63 6f 64 65 20 77 68 69 63 68 20 77 69 6c |f code which wil| 00000f80 6c 20 69 6e 73 74 61 6c 6c 20 74 68 65 20 73 65 |l install the se| 00000f90 74 74 69 6e 67 73 20 6f 6e 20 6d 61 63 68 69 6e |ttings on machin| 00000fa0 65 20 72 65 73 65 74 2e 0a 54 68 69 73 20 73 61 |e reset..This sa| 00000fb0 76 65 73 20 79 6f 75 20 68 61 76 69 6e 67 20 74 |ves you having t| 00000fc0 6f 20 6c 6f 61 64 20 61 20 70 61 72 74 69 63 75 |o load a particu| 00000fd0 6c 61 72 20 67 61 6d 6d 61 20 73 65 74 74 69 6e |lar gamma settin| 00000fe0 67 20 65 76 65 72 79 20 74 69 6d 65 20 79 6f 75 |g every time you| 00000ff0 20 72 65 73 65 74 0a 79 6f 75 72 20 6d 61 63 68 | reset.your mach| 00001000 69 6e 65 2f 73 77 69 74 63 68 20 6f 6e 2e 0a 0a |ine/switch on...| 00001010 52 65 73 65 74 20 61 6c 6c 0a 2d 2d 2d 2d 2d 2d |Reset all.------| 00001020 2d 2d 2d 0a 54 68 69 73 20 6c 6f 61 64 73 20 61 |---.This loads a| 00001030 20 64 65 66 61 75 6c 74 20 67 61 6d 6d 61 20 66 | default gamma f| 00001040 69 6c 65 20 73 74 6f 72 65 64 20 77 69 74 68 69 |ile stored withi| 00001050 6e 20 74 68 65 20 21 47 61 6d 6d 61 20 61 70 70 |n the !Gamma app| 00001060 6c 69 63 61 74 69 6f 6e 20 69 74 73 65 6c 66 2e |lication itself.| 00001070 0a 0a 43 6f 6e 74 61 63 74 69 6e 67 20 74 68 65 |..Contacting the| 00001080 20 41 75 74 68 6f 72 0a 2d 2d 2d 2d 2d 2d 2d 2d | Author.--------| 00001090 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 49 66 |-------------.If| 000010a0 20 79 6f 75 20 77 69 73 68 20 74 6f 20 63 6f 6e | you wish to con| 000010b0 74 61 63 74 20 74 68 65 20 61 75 74 68 6f 72 20 |tact the author | 000010c0 6f 66 20 74 68 69 73 20 73 6f 66 74 77 61 72 65 |of this software| 000010d0 2c 20 65 69 74 68 65 72 20 74 6f 20 72 65 70 6f |, either to repo| 000010e0 72 74 20 61 20 62 75 67 2c 0a 73 75 67 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|.NEW ZEALAND..(y| 000011c0 65 73 2c 20 74 68 61 74 20 72 65 61 6c 6c 79 20 |es, that really | 000011d0 69 73 20 6d 79 a0 61 64 64 72 65 73 73 21 29 0a |is my.address!).| 000011e0 0a 56 65 72 73 69 6f 6e 20 48 69 73 74 6f 72 79 |.Version History| 000011f0 0a 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |.---------------| 00001200 0a 30 2e 30 31 20 2d 20 74 68 69 73 20 70 72 6f |.0.01 - this pro| 00001210 67 72 61 6d 20 77 61 73 20 64 65 73 63 65 6e 64 |gram was descend| 00001220 65 64 20 66 72 6f 6d 20 73 6f 6d 65 74 68 69 6e |ed from somethin| 00001230 67 20 77 72 69 74 74 65 6e 20 6f 6e 20 74 68 65 |g written on the| 00001240 20 41 34 34 30 2b 50 43 41 54 73 0a 20 20 20 20 | A440+PCATs. | 00001250 20 20 20 63 6f 6c 6f 75 72 20 63 61 72 64 2e 20 | colour card. | 00001260 57 65 6e 74 20 6e 6f 77 68 65 72 65 2e 0a 30 2e |Went nowhere..0.| 00001270 30 32 20 2d 20 74 6f 20 50 69 78 65 6c 45 79 65 |02 - to PixelEye| 00001280 73 20 61 6e 64 20 41 72 65 20 4c 65 69 73 74 61 |s and Are Leista| 00001290 64 2e 0a 30 2e 30 33 20 2d 20 74 6f 20 4a 65 72 |d..0.03 - to Jer| 000012a0 65 6d 79 20 43 6f 6f 6b 2e 20 47 61 6d 6d 61 20 |emy Cook. Gamma | 000012b0 63 6f 64 65 20 69 6e 20 61 20 6d 6f 64 75 6c 65 |code in a module| 000012c0 2e 0a 20 20 20 20 20 2d 20 75 73 65 64 20 43 6f |.. - used Co| 000012d0 6d 70 6f 20 53 57 49 20 62 6c 6f 63 6b 20 62 65 |mpo SWI block be| 000012e0 63 61 75 73 65 20 69 66 20 61 20 67 75 79 20 63 |cause if a guy c| 000012f0 61 6e 27 74 20 72 69 70 20 68 69 73 20 6f 77 6e |an't rip his own| 00001300 20 61 6c 6c 6f 63 61 74 69 6f 6e 0a 20 20 20 20 | allocation. | 00001310 20 20 20 74 68 65 6e 20 77 68 6f 27 73 20 63 61 | then who's ca| 00001320 6e 20 68 65 20 72 69 70 3f 20 3a 2d 29 0a 30 2e |n he rip? :-).0.| 00001330 30 35 20 2d 20 66 69 78 65 64 20 63 75 72 76 65 |05 - fixed curve| 00001340 20 6d 69 6e 2f 6d 61 78 20 73 65 74 74 69 6e 67 | min/max setting| 00001350 73 2c 20 61 64 64 65 64 20 73 61 76 65 2c 20 6d |s, added save, m| 00001360 61 64 65 20 74 6f 6f 6c 62 61 72 20 62 65 68 61 |ade toolbar beha| 00001370 76 65 20 70 72 6f 70 65 72 6c 79 2e 0a 30 2e 30 |ve properly..0.0| 00001380 36 20 2d 20 66 69 78 65 64 20 73 6d 61 6c 6c 20 |6 - fixed small | 00001390 62 75 67 20 72 65 70 6f 72 74 65 64 20 62 79 20 |bug reported by | 000013a0 4a 65 72 65 6d 79 20 61 6e 64 20 63 72 75 6e 63 |Jeremy and crunc| 000013b0 68 65 64 20 66 6f 72 20 72 65 6c 65 61 73 65 2e |hed for release.| 000013c0 0a |.| 000013c1
.