Mail Archives: djgpp/2001/07/05/04:16:21
| Message-ID: | <003601c1052a$c0ff32c0$417536ca@a>
|
| From: | "Siddhartha" <siddhu AT loveable DOT com>
|
| To: | <djgpp AT delorie DOT com>
|
| Subject: | VESA query.
|
| Date: | Thu, 5 Jul 2001 13:44:12 +0530
|
| MIME-Version: | 1.0
|
| X-Priority: | 3
|
| X-MSMail-Priority: | Normal
|
| X-Mailer: | Microsoft Outlook Express 4.72.3110.1
|
| X-MimeOLE: | Produced By Microsoft MimeOLE V4.72.3110.3
|
| Reply-To: | djgpp AT delorie DOT com
|
This is a multi-part message in MIME format.
------=_NextPart_000_0033_01C10558.DAB76EC0
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Hi,
I was programming for VESA VBE2.0 and i got a problem.
The physical frame buffer address(linear mode) lets me address pixels in =
Truecolor and Hi color modes without much difficulty.
However some cards may not support linear mode , ie operate in banked =
modes only. I have difficulty in plotting pixels in 15 16 24 Bpp
modes using banking .=20
Any VESA gurus here can point out some code which might be helpful in =
solving above trouble. Pages providing information such as theoritical =
knowhow about same may be helpful too. Thanks in advance for prompt =
reply.
Siddhartha.
Siddhu AT loveable DOT com
------=_NextPart_000_0033_01C10558.DAB76EC0
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Dwindows-1252" =
http-equiv=3DContent-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 =
Transitional//EN"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 =
Transitional//EN"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 =
Transitional//EN">
<META content=3D"MSHTML 5.00.2014.210" name=3DGENERATOR></HEAD>
<BODY bgColor=3D#e0d8e8>
<DIV>Hi,</DIV>
<DIV>I was programming for VESA VBE2.0 and i got a problem.</DIV>
<DIV>The physical frame buffer address(linear mode) lets me address =
pixels in=20
Truecolor and Hi color modes without much difficulty.</DIV>
<DIV>However some cards may not support linear mode , ie operate in =
banked=20
modes only. I have difficulty in plotting pixels in 15 =
16 24=20
Bpp</DIV>
<DIV>modes using banking . </DIV>
<DIV>Any VESA gurus here can point out some code which might be helpful =
in=20
solving above trouble. Pages providing information such as theoritical =
knowhow=20
about same may be helpful too. Thanks in advance for prompt reply.</DIV>
<DIV> </DIV>
<DIV>Siddhartha.<BR><A=20
href=3D"mailto:Siddhu AT loveable DOT com">Siddhu AT loveable DOT com</A></DIV>
<DIV> </DIV></BODY></HTML>
------=_NextPart_000_0033_01C10558.DAB76EC0--
- Raw text -