Changing Signature of osdialog_file to avoid free and strdup

[RicoP]

I would like to use osdialog_file in my game engine but I would like to be able to use my custom allocator.

osdialog_file uses both free and strdup which makes my life a bit harder. Would it be possible to change the signature of osdialog_file to be

bool osdialog_file(char * destination, int destinationMaxLength, osdialog_file_action action, const char *path, const char *filename, osdialog_filters *filters);

So we can use our own buffer, without worriing about freeing the buffer space.

[AndrewBelt]

If I break the API, I'll do something like this, but right now osdialog follows https://github.com/VCVRack/Rack, which is waiting on a v1 release. I'll probably forget about this task by tomorrow though.

[r-lyeh]

You can also try something quick and use following macros:

#ifndef OSDIALOG_MALLOC
#define OSDIALOG_MALLOC malloc
#endif

#ifndef OSDIALOG_FREE
#define OSDIALOG_FREE free
#endif

#ifndef OSDIALOG_STRDUP
#define OSDIALOG_STRDUP strdup
#endif

[AndrewBelt]

That's reasonable enough. 7bb7dd7688868aef593de2bcd468bed92c71ab00