Mercurial > sdl-ios-xcode
annotate README.PicoGUI @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Sun, 08 Jan 2006 21:18:15 +0000 |
parents | 706de3956894 |
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rev | line source |
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706de3956894
Added initial support for PicoGUI (thanks Micah!)
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1 ======================== |
706de3956894
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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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6 |
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7 PicoGUI is a scalable GUI system with a unique architecture, primarily focused |
706de3956894
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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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10 |
706de3956894
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11 To use the patch: |
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12 |
706de3956894
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13 1. When compiling, add the "--enable-video-picogui" switch to ./configure |
706de3956894
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14 |
706de3956894
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15 2. When running your program, ensure that the picogui driver for SDL |
706de3956894
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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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18 |
706de3956894
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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 |
706de3956894
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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 |
706de3956894
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34 - YUV overlays will be helpful for watching video on set top boxes or other |
706de3956894
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35 embedded devices that have some graphics acceleration hardware |
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36 |
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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 |
706de3956894
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40 |
706de3956894
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41 - The display should be centered when the SDL application is smaller |
706de3956894
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42 than the PicoGUI panel |
706de3956894
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43 |
706de3956894
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44 - Fullscreen or any other special modes |
706de3956894
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45 |
706de3956894
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46 - Support for indexed and grayscale modes |
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47 |
706de3956894
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48 - Probably much more... |
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49 |
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50 --- The End --- |