My small, mode 13h GUI library

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me239

Joined: 06 Jan 2011
Posts: 200

me239 23 Jan 2011, 09:49

Hello! Here is my new extremely limited library that uses mode 13h to three different gui functions: button/pressed button, window, and title bar. Here is an example of how you can use it

Code:

mov ax, $13
int 10h
mov si, main
call draw_window
int 20h
main WINDOW, 10, 20, 70, 90, 07h, 01h

This code/syntax was inspired by a calculator written on this forum. I can't remember the author, but it was under the DOS FAQ under the FPU tab.
the WINDOW syntax goes as the following:
x1, y1, x2, y2, color, titlebar color
button: x1, y1, x2, y2, color
the pressed button routine uses the same syntax as button
image: http://farm6.static.flickr.com/5203/5379941423_2b6932d698.jpg
Download Below

Description:	Example program. Replace code inside start to make your own program.	Download
Filename:	vga.asm
Filesize:	3.33 KB
Downloaded:	435 Time(s)

Last edited by me239 on 24 Jan 2011, 21:48; edited 1 time in total

23 Jan 2011, 09:49

bitshifter

Joined: 04 Dec 2007
Posts: 796
Location: Massachusetts, USA

bitshifter 23 Jan 2011, 18:35

You may want to consider 80*25 text mode (int 10h, AX=03h)
It use 640*480 resolution so the font is nice and small.
The idea is to choose which ASCII characters to build window.
Also there are characters to make shadows around the border.
As an added bonus you get multiple pages of display memory.

23 Jan 2011, 18:35

me239

Joined: 06 Jan 2011
Posts: 200

me239 23 Jan 2011, 18:44

bitshifter wrote:

You may want to consider 80*25 text mode (int 10h, AX=03h)
It use 640*480 resolution so the font is nice and small.
The idea is to choose which ASCII characters to build window.
Also there are characters to make shadows around the border.
As an added bonus you get multiple pages of display memory.

I also have one like that, but I wanted shading and light. I'm going to try to make it a mode 12h or vesa soon.

23 Jan 2011, 18:44

edfed

Joined: 20 Feb 2006
Posts: 4330
Location: Now

edfed 23 Jan 2011, 19:08

very good result.

before vesa, try it with mode 13h + protected mode Smile

23 Jan 2011, 19:08

me239

Joined: 06 Jan 2011
Posts: 200

me239 23 Jan 2011, 19:53

edfed wrote:

very good result.

before vesa, try it with mode 13h + protected mode

It should work. All comunication is done directly with the video memory(excluding the ah=0 int 10h for mode 13h). How do I switch to mode 13h without the BIOS?

23 Jan 2011, 19:53

me239

Joined: 06 Jan 2011
Posts: 200

me239 23 Jan 2011, 21:21

bitshifter wrote:

You may want to consider 80*25 text mode (int 10h, AX=03h)
It use 640*480 resolution so the font is nice and small.
The idea is to choose which ASCII characters to build window.
Also there are characters to make shadows around the border.
As an added bonus you get multiple pages of display memory.

I said in my last post that I've already made a text mode interface, but I wanted to use pixels instead of characters. That's why I want to use mode 12h because it is graphics mode, but also has readable font.
edit: My browser didn't refresh so I thought you were the last post.

Last edited by me239 on 23 Jan 2011, 21:29; edited 1 time in total

23 Jan 2011, 21:21

edfed

Joined: 20 Feb 2006
Posts: 4330
Location: Now

edfed 23 Jan 2011, 21:23

do you know my project FOOL?
your first code looks a lot like my very first approach for grapghic programming.

23 Jan 2011, 21:23

me239

Joined: 06 Jan 2011
Posts: 200

me239 23 Jan 2011, 21:28

edfed wrote:

do you know my project FOOL?
your first code looks a lot like my very first approach for grapghic programming.

thanks and yes I've heard of FOOL. I downloaded it, but could never figure out how to use and it seemed like an attempt to replace assembly. I could be wrong though.

23 Jan 2011, 21:28

ManOfSteel

Joined: 02 Feb 2005
Posts: 1154

ManOfSteel 23 Jan 2011, 21:53

me239 wrote:

How do I switch to mode 13h without the BIOS?

You don't. Mode-setting is hardware dependent and quite difficult compared to the simple real mode BIOS-based method. You better switch to mode 0x13 and then enable protected mode.

23 Jan 2011, 21:53

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8351
Location: Kraków, Poland

Tomasz Grysztar 23 Jan 2011, 23:14

Actually, setting mode 13h by directly poking the VGA registers is not so much hardware-dependent (unless you want the MCGA compatibility, but then you'd just need to add a MCGA subroutine), it is relatively simple to do and it will work on anything that is VGA-compatible. I had such code (and also the routine to get back 80x25 text mode) in the late version of my old Titan OS project. unfortunately it is the version that was then lost.

23 Jan 2011, 23:14

Dex4u

Joined: 08 Feb 2005
Posts: 1601
Location: web

Dex4u 24 Jan 2011, 03:35

Here is some code from 'BOS' for doing that.

Description:		Download
Filename:	vga.inc
Filesize:	12.48 KB
Downloaded:	394 Time(s)

24 Jan 2011, 03:35

ManOfSteel

Joined: 02 Feb 2005
Posts: 1154

ManOfSteel 24 Jan 2011, 10:00

I stand corrected. Even though I've played with those registers many times in the past, I didn't recall mode-setting was possible in the same way. It's not that complex after all and I've seen a lot "worse". Smile

24 Jan 2011, 10:00

DJ Mauretto

Joined: 14 Mar 2007
Posts: 464
Location: Rome,Italy

DJ Mauretto 24 Jan 2011, 11:36

bitshifter wrote:

You may want to consider 80*25 text mode (int 10h, AX=03h)
It use 640*480 resolution so the font is nice and small.
.

Did you mean 720x400 Wink

_________________
Nil Volentibus Arduum Razz

24 Jan 2011, 11:36

edfed

Joined: 20 Feb 2006
Posts: 4330
Location: Now

edfed 24 Jan 2011, 12:09

need a vga mode switch for pm (with same interface than int 10h of course), after, bios will be far away!!!!

24 Jan 2011, 12:09

me239

Joined: 06 Jan 2011
Posts: 200

me239 25 Jan 2011, 04:33

edfed wrote:

need a vga mode switch for pm (with same interface than int 10h of course), after, bios will be far away!!!!

Hey, couldn't I just save the int 10h handler and call it later on whilst I'm in protected mode?

25 Jan 2011, 04:33

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20300
Location: In your JS exploiting you and your system

revolution 25 Jan 2011, 04:37

me239 wrote:

edfed wrote:
need a vga mode switch for pm (with same interface than int 10h of course), after, bios will be far away!!!!

Hey, couldn't I just save the int 10h handler and call it later on whilst I'm in protected mode?

Only if you also switch to 16-bit code, and enable segments to be RM compatible, and set all the IO ports to be open, and ... oh, too much trouble, just switch to RM and do the INT 10 from there or write some direct PM code.

25 Jan 2011, 04:37

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