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annotate src/loadso/dlopen/SDL_sysloadso.c @ 1768:814f9f2c7a33

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Fixed bug #80 Date: 21 Apr 2003 17:20:20 +0100 From: Alan Swanson <swanson@uklinux.net> Subject: [SDL] New XFree 4.3 Video Mode Patch If you look at the unsorted list of modes returned by X, here's mine; 1280 x 1024 @ 85.0 > 1024 x 768 @ 100.3 > USER 800 x 600 @ 125.5 > SET 640 x 480 @ 124.9 > 1280 x 1024 @ 75.0 ] 1280 x 1024 @ 60.0 ] 1280 x 960 @ 85.0 ] X11 1280 x 960 @ 60.0 ] AUTO 1152 x 864 @ 75.0 ]=20 1152 x 768 @ 54.8 ] 960 x 720 @ 120.0 ] ... 640 x 400 @ 85.1 ] 256k 576 x 432 @ 150.0 ] 249k PIXEL 640 x 350 @ 85.1 ] 224k COUNT 576 x 384 @ 109.6 ] 221k ... The user set modes come first followed by X set modes which are ordered by decreasing number of pixels and refresh. The reason why every other library or program not using SDL working is due to SDL scanning the modes in reverse getting X11 provided modes modes with the lowest refresh.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 05 May 2006 05:50:26 +0000
parents 92947e3a18db
children 782fd950bd46 c121d94672cb a813fff94165
rev   line source
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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 #ifdef SDL_LOADSO_DLOPEN
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25
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26 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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27 /* System dependent library loading routines */
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28
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29 #include <stdio.h>
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30 #include <dlfcn.h>
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31
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32 #include "SDL_loadso.h"
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33
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34 void *SDL_LoadObject(const char *sofile)
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35 {
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36 void *handle = dlopen(sofile, RTLD_NOW);
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37 const char *loaderror = (char *)dlerror();
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38 if ( handle == NULL ) {
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39 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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40 }
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41 return(handle);
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42 }
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43
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44 void *SDL_LoadFunction(void *handle, const char *name)
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45 {
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46 void *symbol = dlsym(handle, name);
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47 if ( symbol == NULL ) {
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48 size_t len = 1+SDL_strlen(name)+1;
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49 char *_name = SDL_stack_alloc(char, len);
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50 _name[0] = '_';
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51 SDL_strlcpy(&_name[1], name, len);
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52 symbol = dlsym(handle, name);
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53 SDL_stack_free(_name);
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54 if ( symbol == NULL ) {
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55 SDL_SetError("Failed loading %s: %s", name, (const char *)dlerror());
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56 }
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57 }
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58 return(symbol);
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59 }
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60
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61 void SDL_UnloadObject(void *handle)
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62 {
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63 if ( handle != NULL ) {
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64 dlclose(handle);
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65 }
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66 }
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67
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68 #endif /* SDL_LOADSO_DLOPEN */