annotate README.PicoGUI @ 615:7ec821f3cbd0

Date: Thu, 17 Apr 2003 23:27:34 -0400 From: Darrell Walisser Subject: Yet another OS X cursor bug The synopsis: 1. Call SDL_ShowCursor(0); 2. Call SDL_SetVideoMode(); 3. Call SDL_GetEvent(); 3. Call SDL_ShowCursor(1); The result: Sometimes the cursor doesn't come back! Ack! Oddly enough, it does come back when mousing over the dock or clicking in the menu bar. But that's besides the point. The reason why this is happening is a flaw in the handling of activation/deactivation events. The short explanation is that the HideCursor() and ShowCursor() calls must be balanced, but if the cursor was initially hidden, HideCursor() was called again on the activate event - so now the next ShowCursor() fails (as does the next, and the next, for some reason). So, here's the patch. All it does is keep track of the HideCursor()/ShowCursor() calls so that they will always be balanced.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 20 Apr 2003 05:41:16 +0000
parents 706de3956894
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1 ========================
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2 Using SDL with PicoGUI
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3 ========================
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4
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5 - Originally contributed by Micah Dowty <micahjd@users.sourceforge.net>
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7 PicoGUI is a scalable GUI system with a unique architecture, primarily focused
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8 on scalability to various embedded systems. You can find more information
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9 including a FAQ at http://picogui.org
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11 To use the patch:
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13 1. When compiling, add the "--enable-video-picogui" switch to ./configure
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15 2. When running your program, ensure that the picogui driver for SDL
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16 is in use by setting the SDL_VIDEODRIVER environment variable
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17 to "picogui".
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19 3. The program must also be linked to the C client library for PicoGUI
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20 (libpgui.so). If the program is being compiled with a patched SDL
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21 installed this should be done automatically. If you want to use an
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22 existing binary with PicoGUI, you can set the LD_PRELOAD environment
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23 variable to the path of your libpgui.so file.
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24
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25 Capabilities:
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26
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27 So far only basic functionality is provided on true color (linear16/24/32)
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28 devices. Accessing a memory mapped bitmap, updating the display, and handling
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29 mouse/keyboard input. This functionality has been tested with several
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30 applications, including mplayer, Xine, sldroids, and Abuse.
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31
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32 TODO list:
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33
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34 - YUV overlays will be helpful for watching video on set top boxes or other
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35 embedded devices that have some graphics acceleration hardware
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37 - Account for rotated bitmap storage in pgserver
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38
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39 - Support for hiding or changing the cursor
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40
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41 - The display should be centered when the SDL application is smaller
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42 than the PicoGUI panel
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43
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44 - Fullscreen or any other special modes
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45
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46 - Support for indexed and grayscale modes
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47
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48 - Probably much more...
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50 --- The End ---