Mercurial > sdl-ios-xcode
annotate src/loadso/win32/SDL_sysloadso.c @ 1541:157001382dfd
Quartz implementation for SDL_DisplayYUVOverlay() was returning non-zero on
error, instead of zero, contrary to documentation.
Fixes Bugzilla #165.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Wed, 15 Mar 2006 05:52:31 +0000 |
parents | bb6839704ed6 |
children | 92947e3a18db |
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 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
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25 /* System dependent library loading routines */ |
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26 |
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27 #define WIN32_LEAN_AND_MEAN |
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28 #include <windows.h> |
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29 |
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30 #include "SDL_loadso.h" |
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31 |
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32 void *SDL_LoadObject(const char *sofile) |
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33 { |
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34 void *handle = NULL; |
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35 const char *loaderror = "Unknown error"; |
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36 |
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37 #if defined(_WIN32_WCE) |
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38 char errbuf[512]; |
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39 |
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40 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t)); |
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41 wchar_t *sofile_t = SDL_malloc((MAX_PATH+1) * sizeof(wchar_t)); |
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42 |
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43 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH); |
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44 handle = (void *)LoadLibrary(sofile_t); |
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45 |
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46 /* Generate an error message if all loads failed */ |
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47 if ( handle == NULL ) { |
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48 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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49 FORMAT_MESSAGE_FROM_SYSTEM), |
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50 NULL, GetLastError(), |
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51 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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52 errbuf_t, SDL_arraysize(errbuf), NULL); |
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53 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL); |
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54 loaderror = errbuf; |
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55 } |
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56 |
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57 SDL_free(sofile_t); |
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58 SDL_free(errbuf_t); |
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59 |
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60 #else /*if defined(__WIN32__)*/ |
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61 char errbuf[512]; |
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62 |
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63 handle = (void *)LoadLibrary(sofile); |
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64 |
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65 /* Generate an error message if all loads failed */ |
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66 if ( handle == NULL ) { |
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67 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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68 FORMAT_MESSAGE_FROM_SYSTEM), |
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69 NULL, GetLastError(), |
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70 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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71 errbuf, SDL_arraysize(errbuf), NULL); |
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72 loaderror = errbuf; |
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73 } |
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74 #endif |
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75 |
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76 if ( handle == NULL ) { |
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77 SDL_SetError("Failed loading %s: %s", sofile, loaderror); |
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78 } |
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79 return(handle); |
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80 } |
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81 |
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82 void *SDL_LoadFunction(void *handle, const char *name) |
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83 { |
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84 void *symbol = NULL; |
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85 const char *loaderror = "Unknown error"; |
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86 |
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87 #if defined(_WIN32_WCE) |
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88 char errbuf[512]; |
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89 int length = SDL_strlen(name); |
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90 |
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91 wchar_t *name_t = SDL_malloc((length + 1) * sizeof(wchar_t)); |
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92 wchar_t *errbuf_t = SDL_malloc(512 * sizeof(wchar_t)); |
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93 |
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94 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length); |
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95 |
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96 symbol = (void *)GetProcAddress((HMODULE)handle, name_t); |
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97 if ( symbol == NULL ) { |
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98 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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99 FORMAT_MESSAGE_FROM_SYSTEM), |
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100 NULL, GetLastError(), |
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101 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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102 errbuf_t, SDL_arraysize(errbuf), NULL); |
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103 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL); |
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104 loaderror = errbuf; |
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105 } |
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106 |
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107 SDL_free(name_t); |
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108 SDL_free(errbuf_t); |
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109 |
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110 #else /*if defined(WIN32)*/ |
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111 char errbuf[512]; |
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112 |
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113 symbol = (void *)GetProcAddress((HMODULE)handle, name); |
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114 if ( symbol == NULL ) { |
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115 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS | |
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116 FORMAT_MESSAGE_FROM_SYSTEM), |
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117 NULL, GetLastError(), |
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118 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
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119 errbuf, SDL_arraysize(errbuf), NULL); |
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120 loaderror = errbuf; |
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121 } |
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122 #endif |
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123 |
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124 if ( symbol == NULL ) { |
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125 SDL_SetError("Failed loading %s: %s", name, loaderror); |
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126 } |
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127 return(symbol); |
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128 } |
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129 |
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130 void SDL_UnloadObject(void *handle) |
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131 { |
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132 if ( handle != NULL ) { |
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133 FreeLibrary((HMODULE)handle); |
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134 } |
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135 } |
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136 |