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annotate src/loadso/macos/SDL_sysloadso.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 92947e3a18db
children 4da1ee79c9af
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_MACOS
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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 <string.h>
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31 #define OLDP2C 1
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32 #include <Strings.h>
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33 #include <CodeFragments.h>
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34 #include <Errors.h>
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35
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36 #include "SDL_loadso.h"
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37
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38 void *
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39 SDL_LoadObject (const char *sofile)
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40 {
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41 void *handle = NULL;
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42 const char *loaderror = NULL;
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43 CFragConnectionID library_id;
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44 Ptr mainAddr;
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45 Str255 errName;
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46 OSErr error;
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47 char psofile[512];
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48
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49 SDL_strlcpy (psofile, sofile, SDL_arraysize (psofile));
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50 error = GetSharedLibrary (C2PStr (psofile), kCompiledCFragArch,
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51 kLoadCFrag, &library_id, &mainAddr, errName);
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52 switch (error) {
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53 case noErr:
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54 loaderror = NULL;
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55 break;
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56 case cfragNoLibraryErr:
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57 loaderror = "Library not found";
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58 break;
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59 case cfragUnresolvedErr:
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60 loaderror = "Unabled to resolve symbols";
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61 break;
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62 case cfragNoPrivateMemErr:
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63 case cfragNoClientMemErr:
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64 loaderror = "Out of memory";
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65 break;
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66 default:
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67 loaderror = "Unknown Code Fragment Manager error";
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68 break;
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69 }
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70 if (loaderror == NULL) {
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71 handle = (void *) (library_id);
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72 } else {
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73 SDL_SetError ("Failed loading %s: %s", sofile, loaderror);
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74 }
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75 return (handle);
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76 }
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77
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78 void *
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79 SDL_LoadFunction (void *handle, const char *name)
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80 {
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81 void *symbol = NULL;
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82 const char *loaderror = NULL;
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83 CFragSymbolClass class;
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84 CFragConnectionID library_id = (CFragConnectionID) handle;
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85 char pname[512];
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86
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87 SDL_strlcpy (pname, name, SDL_arraysize (pname));
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88 if (FindSymbol (library_id, C2PStr (pname),
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89 (char **) &symbol, &class) != noErr) {
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90 loaderror = "Symbol not found";
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91 }
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92
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93 if (symbol == NULL) {
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94 SDL_SetError ("Failed loading %s: %s", name, loaderror);
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95 }
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96 return (symbol);
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97 }
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98
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99 void
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100 SDL_UnloadObject (void *handle)
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101 {
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102 CFragConnectionID library_id;
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103 if (handle != NULL) {
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104 library_id = (CFragConnectionID) handle;
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105 CloseConnection (&library_id);
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106 }
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107 }
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108
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109 #endif /* SDL_LOADSO_MACOS */
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110 /* vi: set ts=4 sw=4 expandtab: */