Mercurial > sdl-ios-xcode
annotate src/video/ataricommon/SDL_ikbdinterrupt_s.h @ 1555:780fd5b61df1
Fixed bug #89
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 12:05:16 +0000 |
parents | d910939febfa |
children | 14717b52abc0 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 /* |
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25 * Mouse vector |
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26 * |
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27 * Patrice Mandin |
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28 */ |
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29 |
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30 #ifndef _SDL_IKBDINTERRUPT_S_H_ |
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31 #define _SDL_IKBDINTERRUPT_S_H_ |
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32 |
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33 #include <mint/osbind.h> |
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34 |
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35 #include "SDL_stdinc.h" |
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36 |
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37 /* Const */ |
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38 |
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39 #define IKBD_JOY_UP (1<<0) |
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40 #define IKBD_JOY_DOWN (1<<1) |
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41 #define IKBD_JOY_LEFT (1<<2) |
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42 #define IKBD_JOY_RIGHT (1<<3) |
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43 #define IKBD_JOY_FIRE (1<<7) |
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44 |
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45 /* Variables */ |
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46 |
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47 extern Uint8 SDL_AtariIkbd_keyboard[128]; /* Keyboard table */ |
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48 extern Uint16 SDL_AtariIkbd_mouseb; /* Mouse on port 0, buttons */ |
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49 extern Sint16 SDL_AtariIkbd_mousex; /* Mouse X relative motion */ |
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50 extern Sint16 SDL_AtariIkbd_mousey; /* Mouse Y relative motion */ |
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51 extern Uint16 SDL_AtariIkbd_joystick; /* Joystick on port 1 */ |
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52 |
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53 extern Uint16 SDL_AtariIkbd_enabled; /* For joystick driver to know |
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54 if this is usable */ |
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55 |
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56 /* Functions */ |
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57 |
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58 extern void SDL_AtariIkbdInstall(void); |
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59 extern void SDL_AtariIkbdUninstall(void); |
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60 |
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61 #endif /* _SDL_IKBDINTERRUPT_S_H_ */ |