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annotate Xcode/SDL/pkg-support/resources/ReadMe.txt @ 3495:1b22878e04d0

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Adam Strzelecki to SDL D3D renderer shall try mapping YV12 and I420 (IYUV) to D3D texture formats via FOURCC. This will enable HW acceleration for those formats when driver is capable (most of them are). Note that SDL's IYUV maps I420 FOURCC on Woe.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 27 Nov 2009 03:11:26 +0000
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1 The Simple DirectMedia Layer (SDL for short) is a cross-platform
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2 library designed to make it easy to write multi-media software,
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3 such as games and emulators.
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4
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5 The Simple DirectMedia Layer library source code is available from:
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6 http://www.libsdl.org/
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7
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8 This library is distributed under the terms of the GNU LGPL license:
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9 http://www.gnu.org/copyleft/lesser.html
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10
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11
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12 This packages contains the SDL.framework for OS X.
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13 Conforming with Apple guidelines, this framework
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14 contains both the SDL runtime component and development header files.
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15
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16
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17 To Install:
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18 Copy the SDL.framework to /Library/Frameworks
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19
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20 You may alternatively install it in <Your home directory>/Library/Frameworks
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21 if your access privileges are not high enough.
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22 (Be aware that the Xcode templates we provide in the SDL Developer Extras
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23 package may require some adjustment for your system if you do this.)
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24
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25
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26 Known Issues:
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27 ???
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28
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29
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30 Additional References:
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31
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32 - Screencast tutorials for getting started with OpenSceneGraph/Mac OS X are
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33 available at:
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34 http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/MacOSXTips
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35 Though these are OpenSceneGraph centric, the same exact concepts apply to
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36 SDL, thus the videos are recommended for everybody getting started with
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37 developing on Mac OS X. (You can skim over the PlugIns stuff since SDL
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38 doesn't have any PlugIns to worry about.)
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39
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40
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41
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42 (Partial) History of PB/Xcode projects:
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43 2009-09-21 - Added 64-bit for Snow Leopard. 10.4 is the new minimum requirement.
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44 Removed 'no X11' targets as
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45 new codebase will assume you have them. Also removed specific #defines
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46 for X11, but needed to add search path to /usr/X11R6/include
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47
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48 2007-12-31 - Enabled strip -x in the Xcode settings and removed it
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49 from the Build DMG script.
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50 Added a per-arch setting for the Deployment targets for OTHER_LDFLAGS_ppc
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51 to re-enable prebinding.
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52 Need to remember to copy these changes to the SDL satellite projects.
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53
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54 2007-12-30 - Updated documentation to reflect new installation paths for
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55 Xcode project templates under Leopard (Xcode 2.5/3.0).
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56
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57 ????-??-?? - Added extra targets for building formal releases against the
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58 10.2 SDK so we don't have to keep modifying the settings.
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59
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60 ????-??-?? - Added fancy DMG (background logo) support with automation.
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61
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62 2006-05-09 - Added shell script phase to deal with new SDL_config.h
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63 behavior. Encountered what seems to be an Xcode bug with
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64 multiple files of the same name, even when conditional compiling
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65 is controlled by custom #defines (SDL_sysloadso.c). Multiple or
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66 undefined symbols are the result of this.
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67 Recommended that macosx/SDL_sysloadso.c be modified to directly
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68 include the dlopen version of the file via #ifdef's so only
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69 one version needs to exist. Filed a formal bug report with Apple
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70 about this (4542369).
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71
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72 2006-03-22 - gcc 4 visibility features have been added to the code base so I
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73 enabled the switch in Xcode to take advantage of it. Be aware that only
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74 our x86 builds will be exposed to this feature as we still build ppc
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75 with gcc 3.3.
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76
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77 Christian Walther has sent me some great feedback on things that are
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78 broken, so I have made some of these fixes. Among the issues are
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79 compatibility and current library versions are not set to 1 (breaks
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80 backwards compatibility), documentation errors, resource copying
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81 location problems for the SDLTest apps, missing HAVE_OPENGL and
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82 OpenGL.framework linking in testgl.
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83 (Eric Wing)
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84
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85 2006-03-17 - Because the X11 headers are not installed by default with Xcode,
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86 we decided to offer two variants of the same targets (one with X11 stuff
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87 and one without). By default, since the X11 stuff does not necessarily
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88 conflict with the native stuff, we build the libraries with the X11 stuff
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89 so advanced developers can access it by default. However, in the case
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90 that a developer did not install X11 (or just doesn't want the extra bloat),
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91 the user may directly select those targets and build those instead.
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92
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93 Once again, we are attempting to remove the exported symbols file. If
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94 I recall correctly, the clashing symbol problems we got were related
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95 to the CD-ROM code which was formerly in C++. Now that the C++ code
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96 has been purged, we are speculating that we might be able to remove
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97 the exports file safely. The long term solution is to utilize gcc 4's
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98 visibility features.
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99
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100 For the developer extras package, I changed the package format
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101 from a .pkg based installer to a .dmg to avoid requiring
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102 administrator/root to access contents, for better
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103 transparency, and to allow users to more easily control which components
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104 they actually want to install.
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105 I also made changes and updates to the PB/Xcode project templates (see Developer ReadMe).
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106 (Eric Wing)
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107
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108 2006-03-07 - The entire code base has been reorganized and platform specific
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109 defines have been pushed into header files (SDL_config_*.h). This means
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110 that defines that previously had to be defined in the Xcode projects can
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111 be removed (which I have started doing). Furthermore, it appears that the
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112 MMX/SSE code has been rewritten and refactored so it now compiles without
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113 nasm and without making us do strange things to support OS X. However, this
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114 Xcode project still employs architecture specific build options in order to
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115 achieve the mandated 10.2 compatibility. As a result of the code base changes,
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116 there are new public headers. But also as a result of these changes, there are
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117 also new headers that qualify as "PrivateHeaders". Private Headers are headers
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118 that must be exported because a public header includes them, but users shouldn't
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119 directly invoke these. SDL_config_macosx.h and SDL_config_dreamcast.h are
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120 examples of this. We have considered marking these headers as Private, but it
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121 requires that the public headers invoke them via framework conventions, i.e.
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122 #include <FrameworkName/Header.h>
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123 e.g.
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124 #include <SDL/SDL_config_macosx.h>
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125 and not
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126 #include "SDL_config_macosx.h"
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127 However this imposes the restriction that non-framework distributions must
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128 place their headers in a directory called SDL/ (and not SDL11/ like FreeBSD).
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129 Currently, I do not believe this would pose a problem for any of the current
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130 distributions (Fink, DarwinPorts). Or alternatively, users could be
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131 expected/forced to also include the header path:
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132 -I/Library/Frameworks/SDL.framework/PrivateHeaders,
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133 but most people would probably not read the documentation on this.
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134 But currently, we have decided to be conservative and have opted not to
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135 use the PrivateHeaders feature.
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136 (Eric Wing)
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137
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138 2006-01-31 - Updates to build Universal Binaries while retaining 10.2 compatibility.
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139 We were unable to get MMX/SSE support enabled. It is believed that a rewrite of
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140 the assembly code will be necessary to make it position independent and not
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141 require nasm. Altivec has finally been enabled for PPC. (Eric Wing)
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142
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143 2005-09-?? - Had to add back the exports file because it was causing build problems
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144 for some cases. (Eric Wing)
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145
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146 2005-08-21 - First entry in history. Updated for SDL 1.2.9 and Xcode 2.1. Getting
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147 ready for Universal Binaries. Removed the .pkg system for .dmg for due to problems
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148 with broken packages in the past several SDL point releases. Removed usage of SDL
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149 exports file because it has become another point of failure. Introduced new documentation
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150 about SDLMain and how to compile in an devel-lite section of the SDL.dmg. (Eric Wing)
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151
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152 Before history:
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153 SDL 1.2.6? to 1.2.8
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154 Started updating Project Builder projects to Xcode for Panther and Tiger. Also removed
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155 the system that split the single framework into separate runtime and headers frameworks.
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156 This is against Apple conventions and causes problems on multiuser systems.
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157 We now distribute a single framework.
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158 The .pkg system has repeatedly been broken with every new release of OS X.
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159 With 1.2.8, started migrating stuff to .dmg based system to simplify distribution process.
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160 Tried updating the exports file and Perl script generation system for changing syntax. (Eric Wing)
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161
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162 Pre-SDL 1.2.6
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163 Created Project Builder projects for SDL and .pkg based distribution system. (Darrell Walisser)
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164
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165
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166
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167
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168
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169
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170
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171