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Implement the CLAP note ports extension

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This commit is contained in:
Robbert van der Helm 2022-03-15 22:16:50 +01:00
parent f53f6829f0
commit 69e4bc9156
1 changed files with 44 additions and 1 deletions
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45
src/wrapper/clap/wrapper.rs
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@ -26,6 +26,9 @@ use clap_sys::ext::gui::{
CLAP_WINDOW_API_X11,
};
use clap_sys::ext::latency::{clap_host_latency, clap_plugin_latency, CLAP_EXT_LATENCY};
use clap_sys::ext::note_ports::{
clap_note_port_info, clap_plugin_note_ports, CLAP_EXT_NOTE_PORTS, CLAP_NOTE_DIALECT_CLAP,
};
use clap_sys::ext::params::{
clap_host_params, clap_param_info, clap_plugin_params, CLAP_EXT_PARAMS,
CLAP_PARAM_IS_AUTOMATABLE, CLAP_PARAM_IS_BYPASS, CLAP_PARAM_IS_STEPPED,
@ -156,6 +159,8 @@ pub struct Wrapper<P: ClapPlugin> {
clap_plugin_latency: clap_plugin_latency,
host_latency: AtomicRefCell<Option<ClapPtr<clap_host_latency>>>,
clap_plugin_note_ports: clap_plugin_note_ports,
clap_plugin_params: clap_plugin_params,
host_params: AtomicRefCell<Option<ClapPtr<clap_host_params>>>,
// These fiels are exactly the same as their VST3 wrapper counterparts.
@ -393,6 +398,11 @@ impl<P: ClapPlugin> Wrapper<P> {
},
host_latency: AtomicRefCell::new(None),
clap_plugin_note_ports: clap_plugin_note_ports {
count: Self::ext_note_ports_count,
get: Self::ext_note_ports_get,
},
clap_plugin_params: clap_plugin_params {
count: Self::ext_params_count,
get_info: Self::ext_params_get_info,
@ -1172,7 +1182,6 @@ impl<P: ClapPlugin> Wrapper<P> {
let id = CStr::from_ptr(id);
// TODO: Implement:
// - note ports
// - tail
if id == CStr::from_ptr(CLAP_EXT_AUDIO_PORTS_CONFIG) {
&wrapper.clap_plugin_audio_ports_config as *const _ as *const c_void
@ -1185,6 +1194,8 @@ impl<P: ClapPlugin> Wrapper<P> {
&wrapper.clap_plugin_gui as *const _ as *const c_void
} else if id == CStr::from_ptr(CLAP_EXT_LATENCY) {
&wrapper.clap_plugin_latency as *const _ as *const c_void
} else if id == CStr::from_ptr(CLAP_EXT_NOTE_PORTS) && P::ACCEPTS_MIDI {
&wrapper.clap_plugin_note_ports as *const _ as *const c_void
} else if id == CStr::from_ptr(CLAP_EXT_PARAMS) {
&wrapper.clap_plugin_params as *const _ as *const c_void
} else if id == CStr::from_ptr(CLAP_EXT_STATE) {
@ -1624,6 +1635,38 @@ impl<P: ClapPlugin> Wrapper<P> {
wrapper.current_latency.load(Ordering::SeqCst)
}
unsafe extern "C" fn ext_note_ports_count(_plugin: *const clap_plugin, is_input: bool) -> u32 {
// TODO: Outputting notes
match is_input {
true if P::ACCEPTS_MIDI => 1,
_ => 0,
}
}
unsafe extern "C" fn ext_note_ports_get(
_plugin: *const clap_plugin,
index: u32,
is_input: bool,
info: *mut clap_note_port_info,
) -> bool {
match (index, is_input) {
(0, true) if P::ACCEPTS_MIDI => {
*info = std::mem::zeroed();
let info = &mut *info;
info.id = 0;
// TODO: Implement MIDI CC handling
// TODO: Implement MPE and MIDI2
info.supported_dialects = CLAP_NOTE_DIALECT_CLAP;
info.preferred_dialect = CLAP_NOTE_DIALECT_CLAP;
strlcpy(&mut info.name, "Note Input");
true
}
_ => false,
}
}
unsafe extern "C" fn ext_params_count(plugin: *const clap_plugin) -> u32 {
check_null_ptr!(0, plugin);
let wrapper = &*(plugin as *const Self);