sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    [Tutorial] SketchUp Ruby C Extension

    Scheduled Pinned Locked Moved Developers' Forum
    176 Posts 16 Posters 25.9k Views 16 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • I Offline
      ishboo
      last edited by

      That's awesome news! Congrats!

      I'll have a look at it soon and try to finish up the tool πŸ˜„

      SketchUp plugin marketplace: http://extendsketchup.com/

      1 Reply Last reply Reply Quote 0
      • A Offline
        Anton_S
        last edited by

        Lets, say I compile a HelloWorldEx on windows7, will it be the same as compiling it on XP?

        1 Reply Last reply Reply Quote 0
        • Dan RathbunD Offline
          Dan Rathbun
          last edited by

          I would think it would depend upon which MSVC runtime you use.

          Which ever you use, the user(s) will need to have that version installed on their machine(s), regardless of whether they are running Win5.1 (XP,) Win6.0 (Vista) or Win6.1 (Win7.)

          SketchUp itself lists MSVC ver 8.x (2005) as a dependent assembly in it's manifest.

          There ARE some programmers that have compiled extensions and linked to ver 10 (2010), but they must give the Microsoft download link to install that runtime version, and list it as a dependancy.

          Reference:
          http://en.wikipedia.org/wiki/Visual_C++

          πŸ’­

          I'm not here much anymore.

          1 Reply Last reply Reply Quote 0
          • A Offline
            Anton_S
            last edited by

            @dan rathbun said:

            Which ever you use, the user(s) will need to have that version installed on their machine(s), regardless of whether they are running Win5.1 (XP,) Win6.0 (Vista) or Win6.1 (Win7.)

            Hmm, I have win7 and windowns XP mode virtual pc, on the same comp.

            Under Win6.1(win7), I recompiled win32/api.so to my own namespace with a name changed to win32/msp_api.so. ( MSPhysics::Win32::API)
            It worked pretty well, until I've desided test it on WinXP mode virtual pc. WinXPmode had ruby-186-27, SU8, and some more raw programs, though it did not have MSVC.
            Then, I started SU 8 and got this error:
            msp_api.so without msft visual c++

            Before I installed msvc 2010, I desided to test the native win32/api.so and seeing it working wasn't expected; Apperently the native win32/api.so worked pretty well, without showing any errors, and without msvc.

            Being a little confused I desided to download msvc 2010 Redistributable Package (x86), to test whether my win32/msp_api.so would actually work on XPmode. After downloading, it worked now, but there was one question left: How did native win32/api.somanaged to work without msvc? ❓

            1 Reply Last reply Reply Quote 0
            • thomthomT Offline
              thomthom
              last edited by

              @dan rathbun said:

              There ARE some programmers that have compiled extensions and linked to ver 10 (2010), but they must give the Microsoft download link to install that runtime version, and list it as a dependancy.

              No - you don't have to link to the runtime.
              http://forums.sketchucation.com/viewtopic.php?f=180&t=41077&start=105#p411657

              After a simple change in a compiler flag I could use the .so without the runtime installed.

              Thomas Thomassen β€” SketchUp Monkey & Coding addict
              List of my plugins and link to the CookieWare fund

              1 Reply Last reply Reply Quote 0
              • Dan RathbunD Offline
                Dan Rathbun
                last edited by

                @anton_s said:

                How did native win32/api.somanaged to work without msvc?

                Because the SketchUp Installer installs MSVC 8.x (2005) runtime if it is not installed. The MSVC runtime install, might seem transparent to the user installing SketchUp, if they do not pay close attention.

                Most XP machines will likely already have this older MSVC ".NET" runtime version installed if Automatic Windows Updates are turned ON.

                I'm not here much anymore.

                1 Reply Last reply Reply Quote 0
                • Dan RathbunD Offline
                  Dan Rathbun
                  last edited by

                  (Ruby-Talk GoogleGroup) Common Traps for C extensions

                  I'm not here much anymore.

                  1 Reply Last reply Reply Quote 0
                  • T Offline
                    tomasz
                    last edited by

                    I am trying to build the Basic sample under Xcode 4.4, but I am probably doing something wrong, because the resulting bundle fails to load into SU. I get "#<LoadError: myplugin.bundle Failed to load myplugin.bundle". I do not even get the "Failed to find init.. " error.

                    When compiling with extconf.rb and make the plugin loads just fine.

                    What project type should I start with to get the extension running? I have already tied /Framework/Bundle, Generic C++ Plug-in. How can I force the -flat_namespace in Xcode?

                    Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

                    1 Reply Last reply Reply Quote 0
                    • thomthomT Offline
                      thomthom
                      last edited by

                      I've never used XCode. :s
                      But if you find out, could you post back here? It'd be nice to include alternative setups.

                      Thomas Thomassen β€” SketchUp Monkey & Coding addict
                      List of my plugins and link to the CookieWare fund

                      1 Reply Last reply Reply Quote 0
                      • Dan RathbunD Offline
                        Dan Rathbun
                        last edited by

                        I am sure that I remember an old thread where someone explained how to do a OSX extension. I think they said you had to link it to the framworkized Ruby that is under the SketchUp app directory (not the system Ruby that Apple installs.) .. If I recall correctly, that is.

                        I'm not here much anymore.

                        1 Reply Last reply Reply Quote 0
                        • thomthomT Offline
                          thomthom
                          last edited by

                          I didn't have to relink anything. But I'm not familiar with his scenario of XCode 4.4.

                          Thomas Thomassen β€” SketchUp Monkey & Coding addict
                          List of my plugins and link to the CookieWare fund

                          1 Reply Last reply Reply Quote 0
                          • Dan RathbunD Offline
                            Dan Rathbun
                            last edited by

                            I'll have to find the old topic.

                            Is v4.4 too new to work with such an old Ruby version as 1.8.5-p0 ??

                            I'm not here much anymore.

                            1 Reply Last reply Reply Quote 0
                            • thomthomT Offline
                              thomthom
                              last edited by

                              Dunno - what OS are we talking about?

                              I've only done this on OSX 10.4 and 10.5. Maybe the Ruby that shipped there was compatible with SketchUp's Ruby - and this new version isn't and might actually require you to link to SketchUp's libs? I'm just taking a stab in the dark here.

                              Thomas Thomassen β€” SketchUp Monkey & Coding addict
                              List of my plugins and link to the CookieWare fund

                              1 Reply Last reply Reply Quote 0
                              • J Offline
                                Jim
                                last edited by

                                @dan rathbun said:

                                (Ruby-Talk GoogleGroup) Common Traps for C extensions

                                [off:i2j9ll26]I prefer this interface to the Ruby forum:

                                favicon

                                (www.ruby-forum.com)

                                I just don't care for the Google groups interface.[/off:i2j9ll26]

                                Hi

                                1 Reply Last reply Reply Quote 0
                                • T Offline
                                  tomasz
                                  last edited by

                                  @dan rathbun said:

                                  I'll have to find the old topic.

                                  Is v4.4 too new to work with such an old Ruby version as 1.8.5-p0 ??

                                  I don't think so.

                                  The "make" command uses same complier that is bundled with XCode , that is LLVM GCC 4.2.
                                  When the extension is compiled this way, it works fine in SU. It looks like it is just a matter of placing correct settings in proper Xcode windows.

                                  The "-dynamic -bundle -flat_namespace " flags go to 'Linker/Other Linker Flags'. I have chosen STL C++ Library template ... which produces a C++ dynamic shared library (.dylib). I guess it is right type. Unfortunately it does not load with require "extension". Something is still missing.

                                  Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

                                  1 Reply Last reply Reply Quote 0
                                  • thomthomT Offline
                                    thomthom
                                    last edited by

                                    @unknownuser said:

                                    I have chosen STL C++ Library template ... which produces a C++ dynamic shared library

                                    Wait, are you making a C++ extension instead of C?

                                    I've seen some people making Ruby extensions in C++, but you need to perform some extra steps. Something like extern "C".

                                    http://rice.rubyforge.org/
                                    http://www.ruby-forum.com/topic/128668
                                    https://www.google.com/search?hl=en&client=firefox-a&hs=LXd&rls=org.mozilla:en-US:official&q=+site:ruby-forum.com+ruby+c+extension+c%2B%2B&sa=X&ei=7zJXUK62LvLV4QTAvIGgCQ&ved=0CFMQrQIwAw&biw=1600&bih=1096

                                    Thomas Thomassen β€” SketchUp Monkey & Coding addict
                                    List of my plugins and link to the CookieWare fund

                                    1 Reply Last reply Reply Quote 0
                                    • Dan RathbunD Offline
                                      Dan Rathbun
                                      last edited by

                                      @unknownuser said:

                                      I have chosen STL C++ Library template ... which produces a C++ dynamic shared library (.dylib). I guess it is right type. Unfortunately it does not load with require "extension". Something is still missing.

                                      It should according to the description of Kernel.require()

                                      (1) Try the whole filename: require("extension.dylib")

                                      (2) Try specifying Kernel.require("extension_name") instead of the copy of require() that is inherited by Object. (Some naughty plugin could have changed it.)

                                      (3) Be aware that require has undergone changes over the years, to both fix some bugs (early on it pushed filepaths into $LOADED_FEATURES before it was determined if the files loaded successfully,) and to change the iteration of paths in $LOAD_PATH (it used to iterate the $LOAD_PATH array multiple times for each filtype { .rb, .so, .o, .dll, ...etc.} This was changed later on so it only iterates each directory once.) One of the major SNAFUs with dealing with different Ruby versions for different SketchUp platforms and versions.

                                      (4) require() has ALWAYS first checked to see if the argument resolves to a valid absolute filepath, and loads that valid file, instead of iterating through the $LOAD_PATH array.

                                      I'm not here much anymore.

                                      1 Reply Last reply Reply Quote 0
                                      • T Offline
                                        tomasz
                                        last edited by

                                        @thomthom said:

                                        Wait, are you making a C++ extension instead of C?

                                        Yes. I have finally made it. What a nightmare πŸ˜„

                                        Xcode

                                        New Project

                                        Template > "Command Line Tool"!

                                        Enter product name "SX_HelloWorld.bundle"

                                        Type "C++"

                                        The *.c file renamed to *.cpp.
                                        Init_SX_HelloWorld( void ) has to be enclosed in extern "C"

                                        extern "C" {
                                        // The init function here
                                        }
                                        

                                        The last line of the code should read:

                                        rb_define_module_function( mSUExtTest, "knock_knock", RUBY_METHOD_FUNC(rb_knock), 0 );
                                        

                                        Now the important thing

                                        Build Settings\Linking\Other Linker Flags > -dynamic -bundle -undefined suppress -flat_namespace

                                        Build Settings\Search Paths\Header Search Path > has to point to Ruby headers
                                        Build Settings\Search Paths\Library Search Path > has to point to Ruby compiled library

                                        I have compiled the extension with LLVM GCC 4.2

                                        Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

                                        1 Reply Last reply Reply Quote 0
                                        • thomthomT Offline
                                          thomthom
                                          last edited by

                                          Where does this macro come from? RUBY_METHOD_FUNC

                                          Thomas Thomassen β€” SketchUp Monkey & Coding addict
                                          List of my plugins and link to the CookieWare fund

                                          1 Reply Last reply Reply Quote 0
                                          • T Offline
                                            tomasz
                                            last edited by

                                            @thomthom said:

                                            Where does this macro come from? RUBY_METHOD_FUNC

                                            This sits in ruby.h. Without getting a proper pointer type the code will not compile, since it is C++ now.

                                            #define RUBY_METHOD_FUNC(func) ((VALUE (*)(ANYARGS))func)
                                            

                                            Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

                                            1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 5
                                            • 6
                                            • 7
                                            • 8
                                            • 9
                                            • 8 / 9
                                            • First post
                                              Last post
                                            Buy SketchPlus
                                            Buy SUbD
                                            Buy WrapR
                                            Buy eBook
                                            Buy Modelur
                                            Buy Vertex Tools
                                            Buy SketchCuisine
                                            Buy FormFonts

                                            Advertisement