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Start to build Scol using CMAKE » History » Revision 10

Revision 9 (brainsandwich, 05/20/2015 02:50 PM) → Revision 10/45 (brainsandwich, 05/20/2015 03:19 PM)

h1. Start to build Scol using CMAKE 

 

 h2. Prepare all the necessary tools For Android, brace yourselves 

 Before going any further, you should take care of having everything ready for the builds. 

 h3. Windows 

 On Windows, the Scol project is built with CMake and Visual Studio 2010. 

 * You can get CMake freely at http://www.cmake.org/download/ 
 * However Visual Studio 2010 is not free. If you don't have it you can still get Visual Studio 2010 express at https://www.visualstudio.com/downloads/download-visual-studio-vs (there is VS 2010 express down the page) or the complete edition by -getting the torrent- having a good friend who still has the software at home. Because as far as I know you can't even buy it anymore. Hopefully the express edition should suffice. Eventually the build will migrate to a newer VS edition (like VS 2013 community edition, which is free as soon as you are not doing commercial products). 

 It should be about it. 

 h3. Android 

 On Android you need to download more stuff. The configurator is also CMake but you can build the final project with almost anything. 
 At I-Maginer we're using Visual Studio 2013 community edition with some Nvidia plugins, and NMake (which is provided by any version of Visual Studio). 

 First thing is then to download CMake and a version of Visual Studio that suits you. 

 When it's done, you have got 2 options : either you want to rely on Visual Studio or only on NMake manual commands. 

 * If you opted for the first choice, it's quite simple, just go to https://developer.nvidia.com/gameworksdownload and download the Tegra Android Development Pack (TADP). It contains all you need to develop for android targets, available on Windows, Linux and Mac OS platforms. It will add the Visual Studio "Nsight Tegra" plugin, the android SDK and NDK and all the environment variables you'll need. 
 * If you chosed the second choice, well, it's the way of the hero. 
 ¤ Download the JDK (Java Development Kit) at http://www.oracle.com/technetwork/java/javase/downloads 
 ¤ Fetch the Android SDK (Software Development Kit) at https://developer.android.com/sdk/installing and go for "Stand-Alone SDK tools" 
 ¤ Same for the Android NDK (Native Development Kit) at https://developer.android.com/tools/sdk/ndk 
 ¤ Finally get the ANT (Another Neat Tool) build system at http://ant.apache.org/ 

 h2. Get the Scol sources 

 Scol use Subversion for source control and you can use "Tortoise SVN":http://tortoisesvn.net/ to get the source code. 

 So first retrieve the sources from "https://svn.scolring.org/trunk/", accept the certificate and go take some coffee. 
 The source directories contains most of the dependencies, and since some of them are modified they are provided in the sources. 

 h2. Dependencies search paths 

 h3. Windows 

 Once you get the sources, you can execute "setWindowsSearchPaths.bat" in the dependencies directory. 
 !!WARNING!! when you execute the bat file using the mouse the current directory is wrong. 
 You need to start a DOS command line "cmd.exe" as administrator and go to the dependencies directory to start the bat file manually. 
 
 This will add needed environment variables and paths. 

 h3. Android 

 For Android build on Windows, there's no such bat file for the moment (sorry). You will have to put the environment variables 
 yourself. Right click on Computer -> Properties (in file explorer for example) -> System Parameters -> Environment Variables 
 Then add these entries (into "system variables") : 
 * ANDROID_HOME : path/to/sdk 
 * ANDROID_SDK_HOME : path/to/sdk 
 * ANDROID_SDK : path/to/sdk 
 * ANDROID_NDK : path/to/ndk 
 * ANT_HOME : path/to/ant 
 * JAVA_HOME : path/to/jdk -- should be something like "C:\Progra~1\Java\<jdkfolder>" 
 * CMAKE : path/to/cmake 

 Then add these variables into the PATH one (you can copy pasta the following) : 

 @%ANDROID_NDK%;%ANT_HOME%\bin;%ANDROID_SDK%\tools;%ANDROID_SDK%\platform-tools;%CMAKE%;%JAVA_HOME%\bin;@ 

 h2. Build needed dependencies 

 Most of the dependencies are built for Visual Studio 2010. 
 But some build are too huge to put on the SVN, so you will have to build them manually. This is the case of Ogre3D to build the SO3Engine for example. 
 So this is not needed for the Scol kernel and most of the plugins. 

 Scol Kernel only need Boost dependencies. 
 To build it go to the trunk/dependencies/boost directory. 
 first build the bjam program by launching the bootstrap.bat file. 
 Then you can build Boost using the ScolBoostBuild.bat 
 Now CMake should find it when building Scol. 

 h2. Build the projects using CMAKE  

 Download and install "CMAKE":http://www.cmake.org/, there is a GUI for windows called "cmake-gui". 

 Now launch CMAKE and build the project using the sources and build path, for example : 
 souces : trunk/scol 
 binaries : trunk/scol/build 

 Hit the "Configure" button and choose "Visual Studio 10" as project target. 
 Hit "Configure" again until you don't have red lines anymore. 

 Then you can hit the "Generate" button. 

 h2. Build the sources 

 Open the Scol.sln file generated in the trunk/scol/build 
 And finally build the project. 

 The compiled binaries are exported under trunk/scol_sdk/bin/Release or Debug. 


 h1. Start your new plugin 

 h2. Source paths 

 Start by creating a directory with your new plugin name in the trunk/scol/plugins folder. 
 For example trunk/scol/plugins/myPlugin 

 Usually we prefer to separate the sources and the includes. 
 So creates a "src" and "include" directory in your plugin folder. 

 Creates the empty files you will need for your project, usually : 
 - include/myplugin.h for your classes declaration 
 - src/myplugin.cpp for your classes definition 
 - src/scolplugin.cpp for the Scol binding functions 

 h2. Dependencies 

 If your project need an external SDK or dependencies, add then in the trunk/dependencies directory. 
 Then create a findMydepname.cmake file in trunk\scol\CMake\Packages. 
 You can copy and change an existing Find.cmake file to make yours. 
 Start from a simple one like FindMyo.cmake for example. 

 h2. Cmake files 

 It's time to creates the CMAKE script for your plugin. 

 Create a "CMakeLists.txt" file in the plugin directory. 
 trunk/scol/plugins/myPlugin/CMakeLists.txt 

 And edit the file with a text editor. 

 <pre> 
 #------------------------------------------------------------------- 
 # This file is part of the CMake build system for Scol 
 # 
 # The contents of this file are placed in the public domain. Feel 
 # free to make use of it in any way you like. 
 #------------------------------------------------------------------- 

 ############################################################ 
 # CmakeList file for Myplugin 
 ############################################################ 

 #Your project name 
 PROJECT(myPLugin) 

 # define header and source files for the library 
 set (MYPLUGIN_HEADER_FILES 
   include/myplugin.h 
 ) 

 set (MYPLUGIN_SOURCE_FILES 
   src/myplugin.cpp 
   src/scolplugin.cpp 
 ) 

 # Add includes directories from dependencies 
 #    include_directories(include ${MYDEP_INCLUDE_DIRS}) 

 # Add definition for P4 optimizations, warnings removal. 
 add_definitions(-DOPTI_P4 -D_CRT_SECURE_NO_WARNINGS -D) 

 # Add dependencies libraries 
 #    set(LIBRARIES 
 #      ${MYDEP_LIBRARIES} 
 #      ${ZLIB_LIBRARIES} 
 #      ${PNG_LIBRARIES} 
 #    ) 

 # setup Scol plugin target 
 add_library(myPLugin 
   ${Scol_LIB_TYPE} 
   ${MYPLUGIN_HEADER_FILES} 
   ${MYPLUGIN_SOURCE_FILES} 
 ) 
 add_dependencies(myPLugin kernel) 

 # set the dll version. 
 set_target_properties(myPLugin PROPERTIES VERSION ${Scol_VERSION} SOVERSION ${Scol_VERSION_MAJOR}) 
 target_link_libraries(myPLugin ${LIBRARIES}) 

 # install Scol 
 scol_config_plugin(myPLugin) 
 install(FILES ${MYPLUGIN_HEADER_FILES} DESTINATION include/SCOL/plugins/myPLugin) 
 </pre> 

 Now we need to declare this new plugin in the common Scol cmake files. 
 Edit the trunk/scol/CMakeLists.txt file and add your plugin definition like the following. 

 If you don't have dependencies. 
 <pre> 
 option(Scol_BUILD_MYPLUGIN "Build myPluginplugin, my library" TRUE) 
 </pre> 

 If you have depencies 
 <pre> 
 cmake_dependent_option(Scol_BUILD_MYPLUGIN "Build myPlugin, my library." TRUE "MYDEP_FOUND;ZLIB_FOUND;PNG_FOUND" FALSE) 
 </pre> 

 Now edit the trunk/scol/plugin/CMakeLists.txt file and add the following. 
 <pre> 
 # Configure myPlugin plugin build 
 if (Scol_BUILD_MYPLUGIN) 
   add_subdirectory(myPlugin) 
 endif () 
 </pre> 

 Only if you have dependencies, edit the trunk/scol/CMake/ScolDependencies.cmake file and add the dependencies resolution as the following 

 <pre> 
 # Find MyDep 
 find_package(MYDEP) 
 macro_log_feature(MYDEP_FOUND "Mydep" "MydepLibrary" "http://Mydep.org/" FALSE "" "") 
 </pre> 

 h2. Almost done 

 Open the CMAKE-gui again. 
 Hit the "Configure button" and check if you found your plugin in the scol group. 
 Then hit the generate button, and open the scol.sln project again. 

 You should have the project added in Visual Studio.