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Fixed bug #84 Date: Sun, 23 Oct 2005 16:39:03 +0200 From: "A. Schmid" <sahib@phreaker.net> Subject: [SDL] no software surfaces with svgalib driver? Hi, I noticed that the SDL (1.2.9) svgalib driver only makes use of linear addressable (framebuffer) video modes. On older systems (like one of mine), linear addressable modes are often not available. Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is unusable, since VESA only supports framebuffering for VBE 2.0 and later. The changes necessary to add support for software surfaces seem to be relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see attached patch). The code worked fine for me, but it is no more than a proof of concept and should be reviewed (probably has a memory leak when switching modes). It also uses the vgagl library (included in the svgalib package) and needs to be linked against it. -Alex
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Mar 2006 12:04:40 +0000
parents 75a95f82bc1f
children 6d2e1961661a
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75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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1 This is the porting of 1.2.0 version of SDL (the latest stable one)
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2 to AmigaOS/68k.
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3
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4 All the bugs known of the past version have been corrected. And I've
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5 added all the new SDL features.
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6
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7 This version of SDL needs Cybergraphx V3 (r69+) or CyberGraphX V4
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8 and AHI v3+. Probably it works also with P96 or CGXAga, but it's
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9 untested.
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10
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11 This version is available as linked library for SAS/C and GCC, only 68k this
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12 time, a powerup (ppcemu compatible) and a morphos version will be ready quite
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13 soon (i hope).
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14
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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15 Implemented:
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16
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17 - 8/16/24/32bit video modes, both fullscreen and windowed.
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18 - Hardware surfaces.
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19 - CGX blitting acceleration.
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20 - CGX colorkey blitting acceleration.
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21 - AHI audio (8/16 bit, with any audio format), always uses unit 0 for now.
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22 - Thread support (maybe not 100% compatible with other implementations)
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23 - Semaphores
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24 - Window resizing and backdrop windows (NEW)
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25 - Joystick/Joypad support.
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26
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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27 To do:
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28
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29 - CDRom audio playing support
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30 - OpenGL (A guy was working on it but I've lost his tracks :( )
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31
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32 The SAS/C library is distributed with debug info attached, to strip debug info
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33 simply add STRIPDEBUG argument to the linker.
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34
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35 NOTE: SDL includes debug output using kprintf, to disable it add to your
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36 project a function like this:
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37
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38 void kprintf(char *a,...)
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39 {
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40 }
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41
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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42 Otherwise you can redirect the debug to a console window with sushi, sashimi or
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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43 similar tools (the default output is the internal serial port).
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44
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45 For info, support, bugfix and other feel free to mail me:
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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46
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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47 Gabriele Greco (gabriele.greco@aruba.it)
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48
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49 You can find also a small SDL Amiga page at:
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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50 http://ggreco.interfree.it/sdl.html