a choice between int and float types signed and unsigned without conversion is what you need

Also, you can create multidimensional arrays with data structures, if you really need it (yes, it is awkward, but it is certainly possible). On the other hand, if all subarrays are the same size, it is trivial to embed them in a single flat array...

Apart from that, a MIDI file parser is not something you would typically write in a visual programming language. That's why we have a C external for that ;-)

Christof

I think it comes down to PD's horrible selection of array types. Having arrays with multi dimensions that can be a choice between int and float types signed and unsigned without conversion is what you need otherwise you will run into this wall all over the place and you're looking at a c compiler or interpreted language external to make what exists in almost every other language (ie make 16 arrays with 127 dimensions for each note with byte alignment containing n points or whatever) as three lines of code doable on a system that has only 2d arrays and float types. 

On Mon, Oct 26, 2020, 4:12 AM Christof Ressi <info@christofressi.com> wrote:

I agree that we really need a way to read/write binary data. I have already thought about doing a PR to add such functionality to graphical arrays. It would be as simple as adding a flag to the [read( and [write( methods.

In theory, it would be possible then to implement a MIDI file reader/writer as a Pd abstraction. But to be honest, I think only a masochist would do that :-)

On the other hand, mrpeach's [midifile] has always served me well and it's one of those things that don't really get obsolete. So I don't think that Pd really needs built-in MIDI file support. After all, even a kitchen-sink language like Supercollider doesn't come with built-in MIDI file support.

Christof

On 26.10.2020 11:11, Roman Haefeli wrote:

On Mon, 2020-10-26 at 03:32 -0300, Alexandre Torres Porres wrote:

It feels to me Vanilla should be able to read/write MIDI files, but I
wonder how. Any ideas on how this could work in a "vanilla way"
(light and simple)?

To use Miller's words from another thread, I think reading/writing MIDI
files would be an application for which the infrastructure is still
missing: reading from/writing to binary files (unless I missed some
recent development).

Both would be cool, accessing them from disk directly and load/dump
them to/from tables.

Roman

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