annotate src/cdrom/macosx/SDLOSXCAGuard.c @ 3168:6338b7f2d024

Hi, I have prepared a set of patches to readd WindowsCE support to SDL 1.3. I've created a new GAPI/Rawframebuffer and a DirectDraw renderer. Both renderers are work in progress and there are several unimplemented cases. (Notably RenderLine/RenderPoint/RenderFill/QueryTexturePixels/UpdateTexture and texture blending ) Nevertheless I am successfully using these renderers together with the SDL software renderer. (On most devices the SDL software renderer will be much faster as there are only badly optimized vendor drivers available) I send these patches now in this unpolished state because there seems to be some interest in win ce and someone has to start supporting SDL 1.3 Now on to the patches: wince_events_window_fixes.patch fixes some wince incompatibilities and adds fullscreen support via SHFullScreen. NOTE: This patch shouldn't have any side effects on Windows, but I have NOT tested it on Windows, so please double-check. This patch doesn't dependent on the following ones. wince_renderers_system.patch This patch does all necessary modifications to the SDL system. - it adds the renderers to the configure system - it adds the renderers to win32video SDL_ceddrawrender.c SDL_ceddrawrender.h SDL_gapirender_c.h SDL_gapirender.c SDL_gapirender.h these files add the new render drivers and should be placed in src/video/win32 Some notes to people who want to test this: - I have only compiled sdl with ming32ce, so the VisualC files are not up to date - As mingw32ce has no ddraw.h this file must be taken from the MS SDK and modified to work with gcc - I had to modify line 2611 in configure.in to EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer -Wl,--image-base -Wl,0x10000" otherwise GetCPinfo wouldn't link. If someone knows whats causing this I'd be happy to hear about it. It would be great if these patches could make their way into SVN as this would make collaboration much much easier. I'm out of office for the next week and therefore will be unavailable via email. Regards Stefan
author Sam Lantinga <slouken@libsdl.org>
date Sun, 07 Jun 2009 02:44:46 +0000
parents 99210400e8b9
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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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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 Note: This file hasn't been modified so technically we have to keep the disclaimer :-(
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26
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27 Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved.
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28
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29 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
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30 ("Apple") in consideration of your agreement to the following terms, and your
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31 use, installation, modification or redistribution of this Apple software
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32 constitutes acceptance of these terms. If you do not agree with these terms,
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33 please do not use, install, modify or redistribute this Apple software.
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34
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35 In consideration of your agreement to abide by the following terms, and subject
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36 to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
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37 copyrights in this original Apple software (the "Apple Software"), to use,
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38 reproduce, modify and redistribute the Apple Software, with or without
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39 modifications, in source and/or binary forms; provided that if you redistribute
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40 the Apple Software in its entirety and without modifications, you must retain
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41 this notice and the following text and disclaimers in all such redistributions of
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42 the Apple Software. Neither the name, trademarks, service marks or logos of
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43 Apple Computer, Inc. may be used to endorse or promote products derived from the
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44 Apple Software without specific prior written permission from Apple. Except as
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45 expressly stated in this notice, no other rights or licenses, express or implied,
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46 are granted by Apple herein, including but not limited to any patent rights that
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47 may be infringed by your derivative works or by other works in which the Apple
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48 Software may be incorporated.
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49
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50 The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
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51 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
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52 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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53 PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
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54 COMBINATION WITH YOUR PRODUCTS.
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55
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56 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
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57 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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58 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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59 ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
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60 OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
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61 (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
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62 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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63 */
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64 /*=============================================================================
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65 CAGuard.cp
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66
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67 =============================================================================*/
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68
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69 /*=============================================================================
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70 Includes
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71 =============================================================================*/
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72
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73 /*
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74 #include <stdio.h>
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75 #include <stdlib.h>
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76 #include <string.h>
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77 */
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78 #include "SDL_stdinc.h"
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79
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80 /*#define NDEBUG 1*/
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81 /*
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82 #include <assert.h>
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83 */
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84 #define assert(X)
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87 #include "SDLOSXCAGuard.h"
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88
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89 /*#warning Need a try-based Locker too*/
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90 /*=============================================================================
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91 SDLOSXCAGuard
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92 =============================================================================*/
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93
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94 static int
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95 SDLOSXCAGuard_Lock(SDLOSXCAGuard * cag)
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96 {
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97 int theAnswer = 0;
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98
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99 if (pthread_self() != cag->mOwner) {
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100 OSStatus theError = pthread_mutex_lock(&cag->mMutex);
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101 (void) theError;
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102 assert(theError == 0);
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103 cag->mOwner = pthread_self();
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104 theAnswer = 1;
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105 }
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106
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107 return theAnswer;
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108 }
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109
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110 static void
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111 SDLOSXCAGuard_Unlock(SDLOSXCAGuard * cag)
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112 {
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113 OSStatus theError;
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114 assert(pthread_self() == cag->mOwner);
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115
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116 cag->mOwner = 0;
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117 theError = pthread_mutex_unlock(&cag->mMutex);
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118 (void) theError;
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119 assert(theError == 0);
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120 }
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121
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122 static int
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123 SDLOSXCAGuard_Try(SDLOSXCAGuard * cag, int *outWasLocked)
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124 {
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125 int theAnswer = 0;
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126 *outWasLocked = 0;
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127
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128 if (pthread_self() == cag->mOwner) {
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129 theAnswer = 1;
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130 *outWasLocked = 0;
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131 } else {
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132 OSStatus theError = pthread_mutex_trylock(&cag->mMutex);
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133 if (theError == 0) {
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134 cag->mOwner = pthread_self();
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135 theAnswer = 1;
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136 *outWasLocked = 1;
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137 }
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138 }
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139
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140 return theAnswer;
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141 }
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142
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143 static void
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144 SDLOSXCAGuard_Wait(SDLOSXCAGuard * cag)
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145 {
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146 OSStatus theError;
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147 assert(pthread_self() == cag->mOwner);
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148
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149 cag->mOwner = 0;
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150
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151 theError = pthread_cond_wait(&cag->mCondVar, &cag->mMutex);
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152 (void) theError;
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153 assert(theError == 0);
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154 cag->mOwner = pthread_self();
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155 }
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156
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157 static void
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158 SDLOSXCAGuard_Notify(SDLOSXCAGuard * cag)
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159 {
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160 OSStatus theError = pthread_cond_signal(&cag->mCondVar);
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161 (void) theError;
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162 assert(theError == 0);
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163 }
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164
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165
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166 SDLOSXCAGuard *
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167 new_SDLOSXCAGuard(void)
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168 {
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169 OSStatus theError;
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170 SDLOSXCAGuard *cag = (SDLOSXCAGuard *) SDL_malloc(sizeof(SDLOSXCAGuard));
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171 if (cag == NULL)
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172 return NULL;
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173 SDL_memset(cag, '\0', sizeof(*cag));
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174
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175 #define SET_SDLOSXCAGUARD_METHOD(m) cag->m = SDLOSXCAGuard_##m
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176 SET_SDLOSXCAGUARD_METHOD(Lock);
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177 SET_SDLOSXCAGUARD_METHOD(Unlock);
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178 SET_SDLOSXCAGUARD_METHOD(Try);
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179 SET_SDLOSXCAGUARD_METHOD(Wait);
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180 SET_SDLOSXCAGUARD_METHOD(Notify);
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181 #undef SET_SDLOSXCAGUARD_METHOD
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182
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183 theError = pthread_mutex_init(&cag->mMutex, NULL);
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184 (void) theError;
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185 assert(theError == 0);
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186
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187 theError = pthread_cond_init(&cag->mCondVar, NULL);
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188 (void) theError;
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189 assert(theError == 0);
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190
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191 cag->mOwner = 0;
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192 return cag;
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193 }
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194
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195 void
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196 delete_SDLOSXCAGuard(SDLOSXCAGuard * cag)
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197 {
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198 if (cag != NULL) {
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199 pthread_mutex_destroy(&cag->mMutex);
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200 pthread_cond_destroy(&cag->mCondVar);
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201 SDL_free(cag);
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202 }
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203 }
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204
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205 /* vi: set ts=4 sw=4 expandtab: */