Re: [Csnd-dev] [EXTERNAL] [Csnd-dev] New API progress report

Hi Victor!

Thank you for the changes, it helps a lot.

> csoundGetModule
> csoundSetMIDIModule
> csoundSetRTAudioModule

Are used in config dialog to populate a menu to list the available modules.
Now it works fine again.
I reverted some of my changes, left libcsnd out of libraries (this is good
news that it is not needed any more!) and CsoundQt build fine.

I still get crash when running a csd.
MYFLT *outputBuffer = csoundGetSpout(udata->csound);
returns 0 in some reason, I will see if I can figure out the reason later.

Thanks!
tarmo

Kontakt Victor Lazzarini (<[email protected]>)
kirjutas kuupäeval L, 27. juuli 2024 kell 00:55:

> Hi Tarmo,
>
> I put back
>
> > csoundGetModule
> > csoundSetMIDIModule
> > csoundSetRTAudioModule
>
> plus the set global env and the circular buffer functions. It’s in the
> repo now.
>
> Best
>
> Victor
>
> > On 26 Jul 2024, at 20:29, Tarmo Johannes <[email protected]> wrote:
> >
> > *Warning*
> > This email originated from outside of Maynooth University's Mail System.
> Do not reply, click links or open attachments unless you recognise the
> sender and know the content is safe.
> > Hi!
> >
> > I tried out the new API from feature/newapi branch.
> >
> > Building csound7 went fine, I installed it to $HOME/.local (Linux) and
> added  $HOME/.local/lib to ldconfig libraries' path.
> >
> > First I tried it with a relatively simple Qt project using Csound C++
> API (csound.hpp). After some changes everything worked fine. One question:
> >
> > when before there was Csound::stop() / csoundStop() , how is it now the
> proper way to end Csound's work? Also csoundCleanup() is gone. is
> csoundReset() it that does it all?
> >
> > Then I went to CsoundQt and of course that is much, much more complex
> case.
> >
> > First -  I guess libcsnd7 is not  is built by default? Is it still
> existing, how should I configure it?  CsoundQt uses that for recording.
> Maybe there is now a better way to rewrite the recording part.
> >
> > CsoundQt used the following functions that are not to be there any more:
> >
> > csoundGetModule
> > csoundSetMIDIModule
> > csoundSetRTAudioModule
> >
> > I commented these lines out for now to move on. What covers their
> functionality?
> >
> > There is no more circular buffer functions:
> > csoundCreateCircularBuffer
> > csoundReadCircularBuffer
> > etc
> >
> > CsoundQt leaned heavily on them for internal MIDI handling. What is the
> correct way to handle it now?
> > For example reading MIDI data one should set the callback like:
> >         csoundSetExternalMidiReadCallback(ud->csound, &midiReadCb);
> >
> > CsoundQt used to have such a function for the callback:
> >
> > int CsoundEngine::midiReadCb(CSOUND *csound, void *ud_, unsigned char
> *buf, int nBytes)
> > {
> >     CsoundUserData *ud = (CsoundUserData *) ud_;
> >     Q_UNUSED(csound);
> >     int count, countVirtual;
> >     count =  csoundReadCircularBuffer(ud->csound, ud->midiBuffer, buf,
> nBytes);
> >     countVirtual =  csoundReadCircularBuffer(ud->csound,
> ud->virtualMidiBuffer, buf + count, nBytes - count);
> >     return count + countVirtual;
> > }
> >
> > Should the host implement writing to the buffer and handling the index
> itself?
> >
> > Is it so that csoundSetHostImplementedMIDIIO is replaced now with
> > PUBLIC void csoundSetHostMIDIIO(CSOUND *csound);
> >
> > How to deal with global variables?
> > csoundQueryGlobalVariable
> > csoundCreateGlobalVariable
> > are gone,
> >
> > csoundGetEnv is there but no csoundSetEnv, csoundSetGlobalEnv or similar?
> >
> > at the moment I replaced them with Qt specific functions to deal with
> environment variables.
> >
> > What is the correct environment variable for the plugins directory,
> OPCODE7DIR64?
> >
> > I got CsoundQt building but it crashes when I run a file. I did not have
> time yet to dig into it,  there are many possible reasons.  I hope to
> continue tomorrow.
> >
> > Exciting!
> > tarmo
> >
> > Kontakt Victor Lazzarini (<
> [email protected]>) kirjutas kuupäeval N,
> 25. juuli 2024 kell 18:27:
> >
> > Just another progress report for the feature/newapi branch
> >
> > - I have now mainlined the new API in csound.h
> > - Updated the csound.hpp wrapper
> > - Updated the csPerformanceThread code
> > - Modified frontends to use it
> > - Modified the C++ test suite
> >
> > It is all working, I guess frontend developers can take a look and see
> what they
> > think.
> >
> > François: could you take a look at the Python wrapper? It is out of sync
> now.
> >
> > Victor
> >
> >
>
>