hi gabriel,
> Like this. There may be typos... I didn't have time to try and compile
> it. I usually divide it up into two functions so that you can call class
> methods normally instead of doing a bunch of
> ((JackOutput*)arg)->my_method(foo);
>
> diff --git a/libs/hydrogen/include/hydrogen/IO/JackOutput.h
> b/libs/hydrogen/include/hydrogen/IO/JackOutput.h
> index 6364a7b..7aa84cd 100644
> --- a/libs/hydrogen/include/hydrogen/IO/JackOutput.h
> +++ b/libs/hydrogen/include/hydrogen/IO/JackOutput.h
> @@ -100,6 +100,17 @@ public:
> void calculateFrameOffset();
> void locateInNCycles( unsigned long frame, int cycles_to_wait = 2 );
>
> +protected:
> + static void jack_timebase_callback(jack_transport_state_t state,
> + jack_nframes_t nframes,
> + jack_position_t *pos,
> + int new_pos,
> + void *arg);
> + void jack_timebase_callback_impl(jack_transport_state_t state,
> + jack_nframes_t nframes,
> + jack_position_t *pos,
> + int new_pos);
> +
> private:
> void relocateBBT();
> long long bbt_frame_offset;
> diff --git a/libs/hydrogen/src/IO/jack_output.cpp
> b/libs/hydrogen/src/IO/jack_output.cpp
> index a5a8e57..9a43be6 100644
> --- a/libs/hydrogen/src/IO/jack_output.cpp
> +++ b/libs/hydrogen/src/IO/jack_output.cpp
> @@ -693,9 +693,18 @@ void JackOutput::com_release()
>
>
> ///this must be fixed to a valid c++ callback as a member of JackOutput
> -void jack_timebase_callback(jack_transport_state_t state, jack_nframes_t
> nframes,
> +void JackOutput::jack_timebase_callback(jack_transport_state_t state,
> jack_nframes_t nframes,
> jack_position_t *pos, int new_pos, void *arg)
> {
> + JackOutput *me = dynamic_cast<JackOutput*>(arg);
> + if(me) {
> + me->jack_timebase_callback_impl(state, nframes, pos,
> new_pos);
> + }
> +}
> +
> +void JackOutput::jack_timebase_callback_impl(jack_transport_state_t
> state, jack_nframes_t nframes,
> + jack_position_t *pos, int
> new_pos)
> +{
> Hydrogen * H = Hydrogen::get_instance();
>
> //static double jack_tick;
>
thank you, that looks very good.
The next days I will try to change the callback funktion.
In the moment I read a little bit here http://www.newty.de/fpt/index.html to
get more
experience with funktions pointers. Chapter 2 + 3
greetings wolke
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