On Tue, 2017-01-24 at 13:45 -0800, Eric Wing wrote: > On 1/24/17, John Spikowski <supp...@scriptbasic.org> wrote: > > > > Eric, > > > > Your right and what I'm after isn't a solution for the generic C > > IUP > > user. I wrap IUP as an extension module in a FFI based interface. I > > have had success with IUP running threaded. Scripting reduces > > complexity and reuses resources by design. > > > > John > > > Okay, so I think we’re on the same page now.
I think we are on the same page about me emulating IUP functions for the web so I can use my desktop FFI C based IUP code without modification. > > > So I just want to put this idea out there. You don’t have to go this > route. > But with IupEmscripten, you could still theoretically use this with > Script BASIC. > > Basically, you just need to get a compiler to compile Script Basic > into JavaScript or Web Assembly. The Script BASIC HTTPD server is very efficient / fast and runs my desktop (non-UI) code without modification. I wouldn't even consider compiling it to JavaScript. I'll post a Windows and Linux desktop example using the same code base for a browser example. I would appreciate your feedback once that is done. John --------------------------------------------------------------------- ---- > > I don’t expect libFFI to be a problem (long term). A lot of big > languages depend on it, like Python. A quick web search shows that > somebody may have already worked on porting it for Emscripten. > > So you could theoretically just write a normal IUP app in Script > BASIC > (no extra server/client protocol stuff). Then run the whole thing > through Emscripten to build your app for the web. > > I’ll speculate how this would actually work. > > Option 1: First generation (today) > I’ll assume Script BASIC itself is a VM language, say like Lua. I’ll > also assume Script BASIC is written in C or C++. > > So basically you just compile world through Emscripten: > - So you compile Script BASIC in Emscripten to produce a target > output > for JavaScript that can run in the web browser. > - You also compile libFFI and your FFI bindings for IUP through > Emscripten so Script BASIC can call IUP. > - You also compile IUP through Emscripten using the IupEmscripten > backend. > > Your Script BASIC scripts remain actual Script BASIC. You do not > compile these to JavaScript. You store them as resource files in the > target output bundle that the Emscripten compiler generates. > > Then when you load the program in the web browser, Script BASIC > starts > up its VM instance, and then loads your Script BASIC scripts, just > like it normally does on any other platform (Windows, Linux). The > only > difference is the VM is running inside the web browser's JavaScript > VM > instead of on the native platform. To your Script BASIC scripts, they > can’t see any difference. (It's analogous to the idea of running a > Linux VM in a Windows host. The programs you run in Linux don't see > they are in a VM on Windows.) > > This is how people are using Lua in the web browser right now for > things. > > > > Option 2: Next generation Web Assembly (a few years from now) > > Your compiler folks may find a more optimal way to compile Script > BASIC scripts directly to Web Assembly instead of having to run the > full Script BASIC VM instead the web browser. I don’t really know. > Worst case, they can't, but now you the same as Option 1 except > compile to WebAssembly which supposedly will be faster and smaller. > > > ---- > As for threads, I don’t know if Script BASIC uses real native OS > threads, but if it does, you should be very careful with them if you > care about cross-platform portability. Mac, iOS, and Android are > pretty much not thread safe and must run their API commands on the > main UI thread. (I thought GTK is the same way.) I know some SDL > users > have been bit hard because they first developed in Windows and > designed things to work on background threads. Windows seems to be > more tolerant of this. Then when they port to Mac, everything > crashes. > And they are unhappy they have to re-architect their design and > rewrite their code. > > -Eric > > ------------------------------------------------------------------- > ----------- > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Iup-users mailing list > Iup-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iup-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Iup-users mailing list Iup-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iup-users
