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annotate src/thread/win32/SDL_systhread.c @ 4426:1bceff8f008f

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Fixed bug #943 Ozkan Sezer 2010-02-06 12:31:06 PST Hi: Here are some small fixes for compiling SDL against mingw-w64. (see http://mingw-w64.sourceforge.net/ . Despite the name, it supports both win32 and win64.) src/audio/windx5/directx.h and src/video/windx5/directx.h (both SDL-1.2 and SDL-1.3.) I get compilation errors about some union not having a member named u1 and alike, because of other system headers being included before this one and them already defining DUMMYUNIONNAME and stuff. This header probably assumes that those stuff are defined in windef.h, but mingw-w64 headers define them in _mingw.h. Easily fixed by moving NONAMELESSUNION definition to the top of the file. src/thread/win32/SDL_systhread.c (both SDL-1.2 and SDL-1.3.) : The __GNUC__ case for pfnSDL_CurrentBeginThread is 32-bit centric because _beginthreadex returns uintptr_t, not unsigned long which is 32 bits in win64. Changing the return type to uintptr_t fixes it. video/SDL_blit.h (and configure.in) (SDL-1.3-only) : MinGW-w64 uses msvcrt version of _aligned_malloc and _aligned_free and they are defined in intrin.h (similar to VC). Adding proper ifdefs fixes it. (Notes about macros to check: __MINGW32__ is defined for both mingw.org and for mingw-w64 for both win32 and win64, __MINGW64__ is only defined for _WIN64, so __MINGW64__ can't be used to detect mingw-w64: including _mingw.h and then checking for __MINGW64_VERSION_MAJOR does the trick.) SDL_win32video.h (SDL-1.3-only) : Tweaked the VINWER definition and location in order to avoid multiple redefinition warnings. Hope these are useful. Thanks.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 10 Mar 2010 15:02:58 +0000
parents 794f31fb9505
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 /* Win32 thread management routines for SDL */
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25
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26 #define WIN32_LEAN_AND_MEAN
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27 #include <windows.h>
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28
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29 #include "SDL_thread.h"
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30 #include "../SDL_thread_c.h"
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31 #include "../SDL_systhread.h"
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32
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33 #ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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34 #ifndef _WIN32_WCE
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35 /* We'll use the C library from this DLL */
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36 #include <process.h>
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37 #endif
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38
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39 #if __GNUC__
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40 typedef uintptr_t (__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
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41 unsigned
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42 (__stdcall *
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43 func) (void *),
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44 void *arg,
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45 unsigned,
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46 unsigned
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47 *threadID);
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48 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
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49 #elif defined(__WATCOMC__)
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50 /* This is for Watcom targets except OS2 */
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51 #if __WATCOMC__ < 1240
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52 #define __watcall
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53 #endif
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54 typedef unsigned long (__watcall * pfnSDL_CurrentBeginThread) (void *,
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55 unsigned,
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56 unsigned
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57 (__stdcall *
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58 func) (void
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59 *),
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60 void *arg,
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61 unsigned,
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62 unsigned
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63 *threadID);
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64 typedef void (__watcall * pfnSDL_CurrentEndThread) (unsigned code);
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65 #else
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66 typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned,
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67 unsigned (__stdcall *
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68 func) (void
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69 *),
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70 void *arg, unsigned,
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71 unsigned *threadID);
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72 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code);
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73 #endif
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74 #endif /* !SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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75
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76
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77 typedef struct ThreadStartParms
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78 {
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79 void *args;
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80 pfnSDL_CurrentEndThread pfnCurrentEndThread;
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81 } tThreadStartParms, *pThreadStartParms;
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82
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83 static DWORD __stdcall
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84 RunThread(void *data)
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85 {
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86 pThreadStartParms pThreadParms = (pThreadStartParms) data;
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87 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL;
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88
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89 // Call the thread function!
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90 SDL_RunThread(pThreadParms->args);
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91
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92 // Get the current endthread we have to use!
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93 if (pThreadParms) {
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94 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread;
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95 SDL_free(pThreadParms);
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96 }
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97 // Call endthread!
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98 if (pfnCurrentEndThread)
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99 (*pfnCurrentEndThread) (0);
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100 return (0);
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101 }
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102
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103 #ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
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104 int
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105 SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
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106 pfnSDL_CurrentBeginThread pfnBeginThread,
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107 pfnSDL_CurrentEndThread pfnEndThread)
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108 {
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109 #else
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110 int
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111 SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
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112 {
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113 #ifdef _WIN32_WCE
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114 pfnSDL_CurrentBeginThread pfnBeginThread = NULL;
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115 pfnSDL_CurrentEndThread pfnEndThread = NULL;
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116 #else
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117 pfnSDL_CurrentBeginThread pfnBeginThread = _beginthreadex;
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118 pfnSDL_CurrentEndThread pfnEndThread = _endthreadex;
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119 #endif
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120 #endif /* SDL_PASSED_BEGINTHREAD_ENDTHREAD */
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121 unsigned threadid;
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122 pThreadStartParms pThreadParms =
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123 (pThreadStartParms) SDL_malloc(sizeof(tThreadStartParms));
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124 if (!pThreadParms) {
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125 SDL_OutOfMemory();
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126 return (-1);
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127 }
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128 // Save the function which we will have to call to clear the RTL of calling app!
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129 pThreadParms->pfnCurrentEndThread = pfnEndThread;
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130 // Also save the real parameters we have to pass to thread function
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131 pThreadParms->args = args;
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132
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133 if (pfnBeginThread) {
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134 thread->handle =
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135 (SYS_ThreadHandle) pfnBeginThread(NULL, 0, RunThread,
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136 pThreadParms, 0, &threadid);
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137 } else {
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138 thread->handle =
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139 CreateThread(NULL, 0, RunThread, pThreadParms, 0, &threadid);
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140 }
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141 if (thread->handle == NULL) {
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142 SDL_SetError("Not enough resources to create thread");
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143 return (-1);
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144 }
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145 return (0);
0
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146 }
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147
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148 void
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149 SDL_SYS_SetupThread(void)
0
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150 {
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151 return;
0
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152 }
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153
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154 SDL_threadID
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155 SDL_ThreadID(void)
0
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156 {
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157 return ((SDL_threadID) GetCurrentThreadId());
0
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158 }
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159
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160 void
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161 SDL_SYS_WaitThread(SDL_Thread * thread)
0
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162 {
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163 WaitForSingleObject(thread->handle, INFINITE);
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164 CloseHandle(thread->handle);
0
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165 }
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166
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167 /* vi: set ts=4 sw=4 expandtab: */