CLAP allows mixed precision ports. For instance, the main IO ports can
be 32-bit only, while some CV ports allow 64-bit audio. The plugin only
knows the sample format it receives when the process call happens, so
we'll always need to allocate enough space for that to work.
We had to add an even hackier hack now to get Boost.Process to
interoperate with Asio's IO contexts. This will be replaced later when
we replace Boost.Process.
I'm not a fan of Hungarian notation, but C++ kind of needs it with its
implicit `this`. And of all the common options for this, I find
suffixing members with an underscore the least offensive one.
Robbert van der Helm