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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
98 lines
3.4 KiB
Plaintext
98 lines
3.4 KiB
Plaintext
=================================================================
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Patch version 0.9 of SDL(Simple DirectMedia Layer) for Nano-X API
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=================================================================
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Authors: Hsieh-Fu Tsai, clare@setabox.com
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Greg Haerr, greg@censoft.com
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This patch is against SDL version 1.2.4.
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It enhances previous patch 0.8 by providing direct framebuffer
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access as well as dynamic hardware pixel type support, not
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requiring a compile-time option setting for different framebuffer
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modes.
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Tested against Microwindows version 0.89pre9.
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Older Microwindows versions
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===========================
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If running on a version older than Microwindows 0.89pre9,
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the following items might need to be patched in Microwindows.
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1. Patch src/nanox/client.c::GrClose()
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It fixes the client side GrClose(). In the original version,
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GrOpen() can only be called once. When the GrOpen() is called at
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the second time, the program will terminate. In order to prevent
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this situation, we need to insert "nxSocket = -1" after
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"close(nxSocket)" in GrClose(). If you do not have this problem,
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you may skip this step.
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2. Patch src/nanox/clientfb.c to return absolute x,y coordinates
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when using GrGetWindowFBInfo(). Copy the version 0.89pre9
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of src/nanox/clientfb.c to your system, or configure
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using --disable-nanox-direct-fb.
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=============
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Quick Install
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=============
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1. ./configure --disable-video-x11 --disable-video-fbcon \
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--enable-video-nanox \
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--with-nanox-pixel-type=[rgb/0888/888/565/555/332/pal]
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2. make clean
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3. make
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4. make install (as root)
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============
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Nitty-gritty
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============
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--enable-nanox-direct-fb Use direct framebuffer access
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--enable-nanox-debug Show debug messages
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--enable-nanox-share-memory Use shared-memory to speed up
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When running multi-threaded applications using SDL, such
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as SMPEG, set THREADSAFE=Y in Microwindows' config file,
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to enable GrXXX() system call critical section support.
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=============================================
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Some programs can be used to test this patch.
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=============================================
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1. http://www.cs.berkeley.edu/~weimer/atris (a tetris-like game)
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2. http://www.libsdl.org/projects/newvox/
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3. http://www.libsdl.org/projects/xflame/
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4. http://www.libsdl.org/projects/optimum/
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5. http://www.gnugeneration.com/software/loop/
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6: http://www.lokigames.com/development/smpeg.php3 (SMPEG version 0.4.4)
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=========
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Todo List
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=========
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1. Create hardware surface
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2. Create YUVOverlay on hardware
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3. Use OpenGL
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4. Gamma correction
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5. Hide/Change mouse pointer
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6. Better window movement control with direct fb access
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7. Palette handling in 8bpp could be improved
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=====================
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Supporting Institutes
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=====================
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Many thanks to go to Setabox Co., Ltd. and CML (Communication and
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Multimedia Laboratory, http://www.cmlab.csie.ntu.edu.tw/) in the
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Department of Computer Science and Information Engineering of
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National Taiwan University for supporting this porting project.
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Century Embedded Technologies (http://embedded.censoft.com)
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for this patch.
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===================
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Contact Information
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===================
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Welcome to give me any suggestion and to report bugs.
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My e-mail address : clare@setabox.com or niky@cmlab.csie.ntu.edu.tw
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or greg@censoft.com
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