view README.PicoGUI @ 604:31d3af76488b

Date: Mon, 24 Feb 2003 16:31:25 -0500 From: Ragnvald "Despair" Maartmann-Moe IV Subject: SDL x11 video mode selection bug Hi, I've found an oddity with video mode selection. I recently added a bunch of oddball video modes to my XF86Config, to support weird resolutions xine & mplayer need if I don't want to beat my cpu up with video scaling. Since adding them, SDL started picking the biggest video mode it could find that matched the height constraint. Getting a narrow vertical strip of QuakeForge (I code for the project, so needless to say it's my favorite test) in the middle of an 800x480 screen, instead of the 640x480 I asked for annoys me tremendously. So here's a patch that tries a bit harder to get an exact match. I didn't touch the XiG section, since I can't test that, but I'd bet a similar patch would prevent similar problems there. --Ragnvald "Despair" Maartmann-Moe IV
author Sam Lantinga <slouken@libsdl.org>
date Thu, 06 Mar 2003 06:02:16 +0000
parents 706de3956894
children
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 ========================
  Using SDL with PicoGUI
 ========================

- Originally contributed by Micah Dowty <micahjd@users.sourceforge.net>

PicoGUI is a scalable GUI system with a unique architecture, primarily focused
on scalability to various embedded systems. You can find more information
including a FAQ at http://picogui.org

To use the patch:

  1. When compiling, add the "--enable-video-picogui" switch to ./configure

  2. When running your program, ensure that the picogui driver for SDL
     is in use by setting the SDL_VIDEODRIVER environment variable 
     to "picogui".

  3. The program must also be linked to the C client library for PicoGUI
     (libpgui.so). If the program is being compiled with a patched SDL 
     installed this should be done automatically. If you want to use an
     existing binary with PicoGUI, you can set the LD_PRELOAD environment
     variable to the path of your libpgui.so file.

Capabilities:

  So far only basic functionality is provided on true color (linear16/24/32)
  devices. Accessing a memory mapped bitmap, updating the display, and handling
  mouse/keyboard input. This functionality has been tested with several
  applications, including mplayer, Xine, sldroids, and Abuse.

TODO list:

  - YUV overlays will be helpful for watching video on set top boxes or other
    embedded devices that have some graphics acceleration hardware

  - Account for rotated bitmap storage in pgserver

  - Support for hiding or changing the cursor

  - The display should be centered when the SDL application is smaller
    than the PicoGUI panel

  - Fullscreen or any other special modes

  - Support for indexed and grayscale modes

  - Probably much more...

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