symbian-qemu-0.9.1-12/libsdl-trunk/README.NanoX
author martin.trojer@nokia.com
Fri, 31 Jul 2009 15:01:17 +0100
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  =================================================================
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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