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Date: 28 Jun 2003 22:42:52 +0100 From: Alan Swanson Subject: Re: [SDL] New XFree 4.3 Video Mode Patch I have a wee amendment that moves the qsort in set_best_resolution to only occur after failing to find an exact match only. This would make absolutely sure we get a user set mode. While I've never had any problems for my normal resolutions (1280x1024, 1024x768, 800x600 & 640,480) while closely examining the output from qsort I've noticed it doesn't seem to sort the modes fully. These is one definite wrong at 1152x768 and a few that just look wrong to me. From a program (attached) I made to examine this more easily. X has sorted its mode list using the same method as ours (plus frequency), and our user modes get inserted without any other movement. On the patch I've made I've also changed cmpmodes to sort on vertical resolution and then horizontal. Ie vertical is now most significant bit.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 28 Jun 2003 21:52:26 +0000
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1 README by Mike Gorchak <mike@malva.ua>, <lestat@i.com.ua>
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3 OpenGL in window mode works well and stable, in fullscreen
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4 mode too, but fullscreen mode has not been heavily tested.
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5 If you have QNX RtP 6.1.0 w/ or w/o Patch A you must download
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6 new Photon3D runtime from http://developers.qnx.com. The versions
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7 of OS before 6.1.0 are not supported.
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9 Problems:
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10 1. While creating OpenGL context software renderer mode is
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11 artificially selected (QSSL made acceleration only for Voodoo
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12 boards in fullscreen mode, sorry but I don't have this board,
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13 if you want acceleration - you may remove some line in source
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14 code).
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15 2. Photon has some errors in detecting how much bits per pixel
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16 videomode has.
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17 3. No shared libraries yet. We need manually set flag to
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18 'configure' --disable-shared.
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19 4. Due to Photon API limitation, flag SDL_HWSURFACE supported on-
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20 ly in case of desktop bpp is equal requested bpp in window mo-
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21 de.
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23 Some building issues:
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25 Run configure script without x11 support, e.g.:
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27 a) for OpenGL support:
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28 ./configure --prefix=/usr/local \
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29 --disable-video-x11 \
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30 --disable-shared
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32 b) without OpenGL support:
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33 ./configure --prefix=/usr/local \
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34 --disable-video-x11 \
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35 --disable-shared \
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36 --disable-video-opengl
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38 In test directory also run ./configure script without x11
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39 support, e.g.:
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41 ./configure --with-sdl-prefix=/usr/local \
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42 --with-sdl-exec-prefix=/usr/local \
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43 --prefix=/usr/local --without-x
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