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annotate src/loadso/windows/SDL_loadso.c @ 1208:d90b362628ea

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From: "alan buckley" <alan_baa@hotmail.com> Subject: Patch for RISC OS cursor palette handling in SDL Date: Mon, 07 Nov 2005 09:14:15 -0800 The mouse cursor palette was not correctly restored on RISC OS if the system was using anything but the default mouse colours. Additionally I've modifed the order the wait for vsync is called as it should be after the screen bank switching.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 23 Dec 2005 09:40:15 +0000
parents e9cf8c1b4590
children c9b51268668f
rev   line source
1173
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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29 /* System dependent library loading routines */
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30
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31 #if !SDL_INTERNAL_BUILDING_LOADSO
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32 #error Do not compile directly...compile src/SDL_loadso.c instead!
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33 #endif
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34
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35 #if !defined(WIN32) && !defined(_WIN32_WCE)
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36 #error Compiling for the wrong platform?
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37 #endif
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38
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39 #include <stdio.h>
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40 #include <windows.h>
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41
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42 #include "SDL_types.h"
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43 #include "SDL_error.h"
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44 #include "SDL_loadso.h"
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45
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46 void *SDL_LoadObject(const char *sofile)
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47 {
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48 void *handle = NULL;
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49 const char *loaderror = "Unknown error";
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50
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51 #if defined(_WIN32_WCE)
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52 char errbuf[512];
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53
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54 wchar_t *errbuf_t = malloc(512 * sizeof(wchar_t));
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55 wchar_t *sofile_t = malloc((MAX_PATH+1) * sizeof(wchar_t));
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56
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57 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, sofile, -1, sofile_t, MAX_PATH);
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58 handle = (void *)LoadLibrary(sofile_t);
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59
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60 /* Generate an error message if all loads failed */
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61 if ( handle == NULL ) {
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62 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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63 FORMAT_MESSAGE_FROM_SYSTEM),
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64 NULL, GetLastError(),
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65 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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66 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
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67 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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68 loaderror = errbuf;
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69 }
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70
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71 free(sofile_t);
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72 free(errbuf_t);
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73
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74 #else /*if defined(WIN32)*/
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75 char errbuf[512];
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76
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77 handle = (void *)LoadLibrary(sofile);
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78
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79 /* Generate an error message if all loads failed */
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80 if ( handle == NULL ) {
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81 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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82 FORMAT_MESSAGE_FROM_SYSTEM),
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83 NULL, GetLastError(),
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84 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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85 errbuf, SDL_TABLESIZE(errbuf), NULL);
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86 loaderror = errbuf;
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87 }
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88 #endif
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89
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90 if ( handle == NULL ) {
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91 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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92 }
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93 return(handle);
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94 }
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95
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96 void *SDL_LoadFunction(void *handle, const char *name)
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97 {
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98 void *symbol = NULL;
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99 const char *loaderror = "Unknown error";
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100
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101 #if defined(_WIN32_WCE)
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102 char errbuf[512];
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103 int length = strlen(name);
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104
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105 wchar_t *name_t = malloc((length + 1) * sizeof(wchar_t));
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106 wchar_t *errbuf_t = malloc(512 * sizeof(wchar_t));
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107
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108 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, name, -1, name_t, length);
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109
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110 symbol = (void *)GetProcAddress((HMODULE)handle, name_t);
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111 if ( symbol == NULL ) {
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112 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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113 FORMAT_MESSAGE_FROM_SYSTEM),
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114 NULL, GetLastError(),
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115 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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116 errbuf_t, SDL_TABLESIZE(errbuf), NULL);
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117 WideCharToMultiByte(CP_ACP, 0, errbuf_t, -1, errbuf, 511, NULL, NULL);
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118 loaderror = errbuf;
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119 }
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120
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121 free(name_t);
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122 free(errbuf_t);
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123
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124 #else /*if defined(WIN32)*/
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125 char errbuf[512];
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126
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127 symbol = (void *)GetProcAddress((HMODULE)handle, name);
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128 if ( symbol == NULL ) {
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129 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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130 FORMAT_MESSAGE_FROM_SYSTEM),
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131 NULL, GetLastError(),
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132 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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133 errbuf, SDL_TABLESIZE(errbuf), NULL);
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134 loaderror = errbuf;
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135 }
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136 #endif
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137
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138 if ( symbol == NULL ) {
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139 SDL_SetError("Failed loading %s: %s", name, loaderror);
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140 }
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141 return(symbol);
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142 }
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143
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144 void SDL_UnloadObject(void *handle)
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145 {
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146 if ( handle != NULL ) {
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147 FreeLibrary((HMODULE)handle);
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148 }
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149 }
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150