osgearth IOS版本编译

来源：互联网发布：小学生学汉字软件编辑：程序博客网时间：2024/06/05 05:18

1、准备工作

文档参照：Building osgEarth for IOS Generating an IOS XCode Project

1.1、Mac OS

Mac OS 10.8.3

1.2、XCode

XCode 4.6(4H127)

1.3、CMake

CMake 2.8.12.1

1.4、svn

随便安装个能下载代码的就行

1.5、代码下载

OpenSceneGraph3.2.1-rc1 osgearth2.4

项目工程目录：

osgearth-build

-- osg-ios

-- osgearth-ios

-- 3rdparty

1.6、3rdparty下载

ios 3rdparty JavaScriptCore

1.7、OSGEarth IOS下载

osgearth ios application，只需要拷贝osgearth/src/applications/osgearth_viewIOS工程即可，其他部分仍使用下载的IOS代码

1.8、Xcode开发者许可证

编译前必须搞定Xcode开发者许可证，否则编译过程报错。

2、工程生成、编译

2.1、OSG IOS工程编译

2.1.1、SDK路径确认、修改配置

Check /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs // 检查该路径是否存在、SDK版本Open CMakeList.txt and change line 236 to your SDK version: (SET (IPHONE_SDKVER "5.1" CACHE STRING "IOS SDK-Version") // 设置SDK版本，Xcode4.6默认使用6.1SDK

2.1.2、启动CMake，确认配置项

    Use below command line to generate static GLES2 build for iOS devices, change 3rdparty paths to reflect your 3rdparty path    cd ./osg-ios    cmake ./ -G Xcode -DOSG_BUILD_PLATFORM_IPHONE:BOOL=ON \    -DBUILD_OSG_APPLICATIONS:BOOL=OFF \    -DOSG_WINDOWING_SYSTEM:STRING=IOS \    -DOSG_DEFAULT_IMAGE_PLUGIN_FOR_OSX="imageio" \    -DOSG_GL1_AVAILABLE:BOOL=OFF \    -DOSG_GL2_AVAILABLE:BOOL=OFF \    -DOSG_GLES1_AVAILABLE:BOOL=OFF \    -DOSG_GLES2_AVAILABLE:BOOL=ON \    -DOSG_GL_DISPLAYLISTS_AVAILABLE:BOOL=OFF \    -DOSG_GL_FIXED_FUNCTION_AVAILABLE:BOOL=OFF \    -DOSG_GL_LIBRARY_STATIC:BOOL=OFF \    -DOSG_GL_MATRICES_AVAILABLE:BOOL=OFF \    -DOSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE:BOOL=OFF \    -DOSG_GL_VERTEX_FUNCS_AVAILABLE:BOOL=OFF \    -DCURL_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/curl-ios-device/include" \    -DCURL_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/curl-ios-device/lib/libcurl.a" \    -DFREETYPE_INCLUDE_DIR_freetype2:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/freetype-ios-universal/include/freetype" \    -DFREETYPE_INCLUDE_DIR_ft2build:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/freetype-ios-universal/include" \    -DFREETYPE_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/freetype-ios-universal/lib/libFreeType_iphone_universal.a" \    -DTIFF_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/tiff-ios-device/include" \    -DTIFF_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/tiff-ios-device/lib/libtiff.a" \    -DGDAL_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/gdal-ios-device/include" \    -DGDAL_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/gdal-ios-device/lib/libgdal.a" \    -DDYNAMIC_OPENSCENEGRAPH:BOOL=OFF \    -DDYNAMIC_OPENTHREADS:BOOL=OFF

参照上面的配置表，确认CMake配置。CMake默认使用Mac OS的配置，当配置完OSG_BUILD_PLATFORM_IPHONE后，最好点击下"Configure"，再确定"OSG_WINDOWING_SYSTEM"的值是否为IOS，否则配置错误。需要将以上的第三方库的头文件、路径改成项目的路径。

再检查：

CMake uses the CMAKE_OSX_SYSROOT variable to know where the iOS sdk is located. OSG will automatically set this to    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdkIf you use a different sdk or your sdk is installed in a different location change CMAKE_OSX_SYSROOT to point to the correct locationYou can also specify a different sdk number as the minimum requirement, this is set via the -miphoneos-version-min option in the CMAKE_CXX_FLAGS, by default this is set to 4.0. If using the CMake GUI you may need to tick 'Advanced' in order to see the CMAKE_CXX_FLAGS setting.

确认：CMAKE_OSX_SYSROOT的路径为

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk

，Xcode默认路径为MacOS.platform的开发路径，需要修改。（

/Applications/Xcode.app/Contents/Developer/Platforms，目录下有MacOS.platform、iPhoneOS.platform、iPhoneSimulator.platform，配置工程对应的平台）

确认：CMAKE_CXX_FLAGS：中是否包含-miphoneos-version-min=4.0，如果包含-mmacos-version-min=10.8，需去除

CMake生成工程

2.1.3、连接设备，启动Xcode，编译osg

2.2、osgearth工程编译

2.2.1、cmake配置，生成工程

cmake ./ -G Xcode -DOSG_BUILD_PLATFORM_IPHONE:BOOL=ON \-DOSG_DIR:PATH="/Users/hogbox/Documents/osgearth-build/osg-ios" \-DCURL_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/curl-ios-device/include" \-DCURL_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/curl-ios-device/lib/libcurl.a" \-DGDAL_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/gdal-ios-device/include" \-DGDAL_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/gdal-ios-device/lib/libgdal.a" \-DGEOS_INCLUDE_DIR:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/geos-ios-device/include/source/headers" \-DGEOS_LIBRARY:PATH="/Users/hogbox/Documents/osgearth-build/3rdParty/geos-ios-device/lib/libGEOS_3.2.a" \-DOSGEARTH_BUILD_APPLICATION_BUNDLES:BOOL=OFF \-DDYNAMIC_OSGEARTH:BOOL=OFF \-DOSGEARTH_USE_QT:BOOL=OFF

根据以上配置内容，确认CMake配置，并生成osgearth ios工程文件。

2.2.2、连接设备，启动Xcode，编译osgearth

2.2.3、编译工程可能遇到的错误处理

2.2.3.1、stat64错误

跟踪代码，可发现此错误由于没有找到工程对应的平台TargetConditionals.h，只要将报错的Target的“Framework Search Paths"，修改为：

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk/System/Library/Frameworks 并且在“Header Search Paths"中添加 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk/usr/include。

2.2.3.2、Unknown archivement错误

只要将报错的Target的“Framework Search Paths"，修改为：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.1.sdk/System/Library/Frameworks

2.2.3.3、-mmacos-version-min错误

由于当前编译的是iphoneos，所以需要将-mmacos-version-min宏删除

2.2.3.4、not found "osg/config"错误

openscenegraph3.2.1/build/include路径找不到报错，在Target的“Header Search Paths"中添加此路径即可。

2.2.3.5、Undefined Symbols for Architecture armv7 错误

Architecture的版本取决于你使用的硬件，iphone5s使用armv7、armv7s，项目使用的是armv6、armv7。虚拟机编译使用的是i386

2.2.3.6、神奇的报错（找不出原有的神奇报错）