nanogui: Thread: SVGALIB 1.4.1 -- port to RTEMS

In order to improve the availability of video drivers for RTEMS &
Microwindows
running on a PC ( PC386 ), I have ported the drawing back-end of the 
SVGALIB. It is a partial port.

Now, MicroWindows demos looks a lot better with 256 colors. :-).

Link:   http://members.xoom.com/rosimildo/rtems_svga.html

Enjoy.

-- 
Rosimildo da Silva            ####@####.#### 
ConnectTel, Inc.              Austin, TX -- USA      
Phone : 512-338-1111          Fax : 512-918-0449     
Mobile: 512-632-7579                                 
Company Page: http://www.connecttel.com              
Home Page: http://members.xoom.com/rosimildo/

: In order to improve the availability of video drivers for RTEMS &
: Microwindows
: running on a PC ( PC386 ), I have ported the drawing back-end of the 
: SVGALIB. It is a partial port.
: 
: Now, MicroWindows demos looks a lot better with 256 colors. :-).

Rosimildo -
    Extremely impressive!!  So RTEMS now links with SVGALIB
to get the video setup?  

I presume you're still using the framebuffer api on the top end, so SVGALIB
gives you the linear address for the video ram?

Greg

Rosimildo,

Good job!  Where can this port be  gotten?  Thanks.

Sincerely,
Efren
~~~~~~~~~~~~~~~~~~~~~~~~~
Efren Serra
Software Engineer
Systems Solutions Group
Transaction Systems Architects, Inc.
218 South 108th Avenue
Omaha, NE 68154
Phone: 402-697-2267
FAX: 402-333-9725
~~~~~~~~~~~~~~~~~~~~~~~~~


                                                                                                                   
                    "Greg Haerr"                                                                                   
                    <greg@Censoft        To:     "Rosimildo da Silva" ####@####.####                   
                    .com>                ####@####.#### "rtems" ####@####.####              
                                         cc:                                                                       
                    03/10/00             Subject:     Re: SVGALIB 1.4.1 -- port to RTEMS                           
                    09:10 AM                                                                                       
                                                                                                                   
                                                                                                                   



: In order to improve the availability of video drivers for RTEMS &
: Microwindows
: running on a PC ( PC386 ), I have ported the drawing back-end of the
: SVGALIB. It is a partial port.
:
: Now, MicroWindows demos looks a lot better with 256 colors. :-).

Rosimildo -
    Extremely impressive!!  So RTEMS now links with SVGALIB
to get the video setup?

I presume you're still using the framebuffer api on the top end, so SVGALIB
gives you the linear address for the video ram?

Greg

"Greg Haerr" wrote:
 > : In order to improve the availability of video drivers for RTEMS &
 > : Microwindows
 > : running on a PC ( PC386 ), I have ported the drawing back-end of the 
 > : SVGALIB. It is a partial port.
 > : 
 > : Now, MicroWindows demos looks a lot better with 256 colors. :-).
 > 
 > Rosimildo -
 >     Extremely impressive!!  So RTEMS now links with SVGALIB
 > to get the video setup?  

Yes.

 > 
 > I presume you're still using the framebuffer api on the top end, so SVGALIB
 > gives you the linear address for the video ram?
 > 

That has been my goal. Unfortunately, my Video Card does not support
linear address, ( it failed with the testlinear.exe program ),
and I end up using the scr_svga.c driver of MicroWindows.

Anyway, the goal is to use the framebuffer interface and use this
library to set the video cards in graphics mode. Hopefully, someone
out there has a video card with "linear" support to test this out.

Rosimildo.














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-----Original Message-----
From: ####@####.#### ####@####.####
To: Greg Haerr ####@####.####
Cc: ####@####.#### ####@####.####
####@####.#### ####@####.#### ####@####.####
####@####.####
Date: Friday, March 10, 2000 9:32 AM
Subject: Re: SVGALIB 1.4.1 -- port to RTEMS


>
>Rosimildo,
>
>Good job!  Where can this port be  gotten?  Thanks.

Here: SVGA Lib:
http://members.xoom.com/rosimildo/rtems_svga.html


Here: RTEMS patch:
     * requires a "bootstrap" of the code  --- many Makefile.am changes
     * iTRON api must be disabled.   --- hopefully this will be fixed soon.
     * RTEMS 4.5.0-beta1c

http://members.xoom.com/rosimildo/rtems_gui.html

Rosimildo.

:  > I presume you're still using the framebuffer api on the top end, so SVGALIB
:  > gives you the linear address for the video ram?
:  > 
: 
: That has been my goal. Unfortunately, my Video Card does not support
: linear address, ( it failed with the testlinear.exe program ),
: and I end up using the scr_svga.c driver of MicroWindows.

My mistake- Neither microwindows nor rtems requires linear framebuffers.
If you used SVGAlib only to setup/takedown the graphics mode,
then you could still map a framebuffer, and have a slightly different
driver for writing the 8bpp...  I don't know the details of the card
in 8bpp mode though.  I suppose that's what SVGAlib is doing ;-)

Greg