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Date: Sat, 24 Aug 2002 22:20:01 -0600

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From: "Greg Haerr"
Subject: Announce: sdl-nanox-patch

Sam,
    I've created an update patch for enhanced Nano-X support
with SDL.  I've created the patch against SDL-1.2.4.  I'd appreciate
it if you would apply it to the next SDL version.

Enhancements include:

1. Small bugfixes to compile without errors
2. Support for direct client-side framebuffer access with configure option
3. Add dynamic pixel type support for hardware framebuffer; eliminating the
need for compile-time configuration option.

I've updated the README.NanoX file with the details.

This version has been tested with Microwindows v0.89pre9 CVS
and SMPEG 0.4.4.  I've added multi-threading support to
Microwindows to support the multi-threaded SMPEG, and
all works fine.  To turn on thread safety in Microwindows,
use THREADSAFE=Y in the Microwindows config file.

Thanks!

Regards,

Greg
Founder, The Microwindows Project
http://microwindows.org

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40472
This commit is contained in:
Sam Lantinga 2002-08-25 06:21:49 +00:00
parent b08389d348
commit 169fcbaa21
8 changed files with 169 additions and 108 deletions
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48
README.NanoX
View file

@ -1,14 +1,23 @@
=================================================================
Patch version 0.8 of SDL(Simple DirectMedia Layer) for Nano-X API
Patch version 0.9 of SDL(Simple DirectMedia Layer) for Nano-X API
=================================================================
Author: Hsieh-Fu Tsai, clare@setabox.com
Authors: Hsieh-Fu Tsai, clare@setabox.com
Greg Haerr, greg@censoft.com
There are two patch files in this package.
This patch is against SDL version 1.2.4.
It enhances previous patch 0.8 by providing direct framebuffer
access as well as dynamic hardware pixel type support, not
requiring a compile-time option setting for different framebuffer
modes.
Tested against Microwindows version 0.89pre9.
1. The first patch file, nanox.patch, is to fix a bug in Nano-X.
This patch is proposed by Gary James (gjames@twcny.rr.com).
Older Microwindows versions
===========================
If running on a version older than Microwindows 0.89pre9,
the following items might need to be patched in Microwindows.
1. Patch src/nanox/client.c::GrClose()
It fixes the client side GrClose(). In the original version,
GrOpen() can only be called once. When the GrOpen() is called at
the second time, the program will terminate. In order to prevent
@ -16,6 +25,11 @@
"close(nxSocket)" in GrClose(). If you do not have this problem,
you may skip this step.
2. Patch src/nanox/clientfb.c to return absolute x,y coordinates
when using GrGetWindowFBInfo(). Copy the version 0.89pre9
of src/nanox/clientfb.c to your system, or configure
using --disable-nanox-direct-fb.
=============
Quick Install
=============
@ -31,18 +45,14 @@
Nitty-gritty
============
--with-nanox-pixel-type=[rgb/0888/888/565/555/332/pal]
If the wrong pixel type is used, the program will crash when the
sub-routine updates the screen. This option depends on SCREEN_PIXTYPE
which is defined in Microwin0.89pre7/src/config. SCREEN_PIXTYPE
is used to define the pixel type in Microwindows/Nano-X.
I only test the program when the pixel type is in "rgb"
(Microwin under X11) or "888" (framebuffer in 24-bit).
--enable-nanox-direct-fb Use direct framebuffer access
--enable-nanox-debug Show debug messages
--enable-nanox-share-memory Use shared-memory to speed up
When running multi-threaded applications using SDL, such
as SMPEG, set THREADSAFE=Y in Microwindows' config file,
to enable GrXXX() system call critical section support.
=============================================
Some programs can be used to test this patch.
=============================================
@ -52,7 +62,8 @@
3. http://www.libsdl.org/projects/xflame/
4. http://www.libsdl.org/projects/optimum/
5. http://www.gnugeneration.com/software/loop/
6: http://www.lokigames.com/development/smpeg.php3 (SMPEG version 0.4.4)
=========
Todo List
=========
@ -62,6 +73,8 @@
3. Use OpenGL
4. Gamma correction
5. Hide/Change mouse pointer
6. Better window movement control with direct fb access
7. Palette handling in 8bpp could be improved
=====================
Supporting Institutes
@ -72,10 +85,13 @@
Department of Computer Science and Information Engineering of
National Taiwan University for supporting this porting project.
Century Embedded Technologies (http://embedded.censoft.com)
for this patch.
===================
Contact Information
===================
Welcome to give me any suggestion and to report bugs.
My e-mail address : clare@setabox.com or niky@cmlab.csie.ntu.edu.tw
or greg@censoft.com