Mercurial > sdl-ios-xcode
annotate src/video/maccommon/SDL_macgl_c.h @ 1554:0ca607a5d173
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> |
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date | Sun, 19 Mar 2006 12:04:40 +0000 |
parents | 0801c9fdbdd6 |
children | 14717b52abc0 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
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3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
diff
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
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13 Lesser General Public License for more details. |
0 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
diff
changeset
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15 You should have received a copy of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
diff
changeset
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16 License along with this library; if not, write to the Free Software |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
774
diff
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
252
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Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 /* AGL implementation of SDL OpenGL support */ | |
24 | |
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Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
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25 #include "SDL_config.h" |
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
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26 |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1312
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27 #if SDL_VIDEO_OPENGL |
1432
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Sam Lantinga <slouken@libsdl.org>
parents:
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28 #include "SDL_opengl.h" |
1424
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Updated MacOS Classic MPW build
Sam Lantinga <slouken@libsdl.org>
parents:
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29 #ifdef MACOSX |
7a610f25c12f
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Sam Lantinga <slouken@libsdl.org>
parents:
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30 #include <AGL/agl.h> /* AGL.framework */ |
7a610f25c12f
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Sam Lantinga <slouken@libsdl.org>
parents:
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31 #else |
7a610f25c12f
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Sam Lantinga <slouken@libsdl.org>
parents:
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32 #include <agl.h> |
1402
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Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
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33 #endif |
1432
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*** empty log message ***
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parents:
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34 #endif /* SDL_VIDEO_OPENGL */ |
0 | 35 |
36 /* OpenGL functions */ | |
37 extern int Mac_GL_Init(_THIS); | |
38 extern void Mac_GL_Quit(_THIS); | |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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39 #if SDL_VIDEO_OPENGL |
0 | 40 extern int Mac_GL_MakeCurrent(_THIS); |
41 extern int Mac_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value); | |
42 extern void Mac_GL_SwapBuffers(_THIS); | |
774
0c3e00cc9580
Date: Mon, 5 Jan 2004 00:09:36 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
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43 extern int Mac_GL_LoadLibrary(_THIS, const char *location); |
0c3e00cc9580
Date: Mon, 5 Jan 2004 00:09:36 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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44 extern void Mac_GL_UnloadLibrary(_THIS); |
0c3e00cc9580
Date: Mon, 5 Jan 2004 00:09:36 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
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45 extern void* Mac_GL_GetProcAddress(_THIS, const char *proc); |
0 | 46 #endif |
47 |