Implement CLAP note ports extension

src/plugin/bridges/clap-impls/plugin-proxy.cpp

@@ -20,14 +20,17 @@
 
 ClapHostExtensions::ClapHostExtensions(const clap_host& host) noexcept
     : audio_ports(static_cast<const clap_host_audio_ports_t*>(
-          host.get_extension(&host, CLAP_EXT_AUDIO_PORTS))) {}
+          host.get_extension(&host, CLAP_EXT_AUDIO_PORTS))),
+      note_ports(static_cast<const clap_host_note_ports_t*>(
+          host.get_extension(&host, CLAP_EXT_NOTE_PORTS))) {}
 
 ClapHostExtensions::ClapHostExtensions() noexcept {}
 
 clap::host::SupportedHostExtensions ClapHostExtensions::supported()
     const noexcept {
-    return clap::host::SupportedHostExtensions{.supports_audio_ports =
-                                                   audio_ports != nullptr};
+    return clap::host::SupportedHostExtensions{
+        .supports_audio_ports = audio_ports != nullptr,
+        .supports_note_ports = note_ports != nullptr};
 }
 
 clap_plugin_proxy::clap_plugin_proxy(ClapPluginBridge& bridge,
@@ -56,6 +59,10 @@ clap_plugin_proxy::clap_plugin_proxy(ClapPluginBridge& bridge,
           .count = ext_audio_ports_count,
           .get = ext_audio_ports_get,
       }),
+      ext_note_ports_vtable(clap_plugin_note_ports_t{
+          .count = ext_note_ports_count,
+          .get = ext_note_ports_get,
+      }),
       // These function objects are relatively large, and we probably won't be
       // getting that many of them
       pending_callbacks_(128) {}
@@ -178,6 +185,9 @@ clap_plugin_proxy::plugin_get_extension(const struct clap_plugin* plugin,
     if (self->supported_extensions_.supports_audio_ports &&
         strcmp(id, CLAP_EXT_AUDIO_PORTS) == 0) {
         extension_ptr = &self->ext_audio_ports_vtable;
+    } else if (self->supported_extensions_.supports_note_ports &&
+               strcmp(id, CLAP_EXT_NOTE_PORTS) == 0) {
+        extension_ptr = &self->ext_note_ports_vtable;
     }
 
     self->bridge_.logger_.log_extension_query("clap_plugin::get_extension",
@@ -232,3 +242,37 @@ clap_plugin_proxy::ext_audio_ports_get(const clap_plugin_t* plugin,
         return false;
     }
 }
+
+uint32_t CLAP_ABI
+clap_plugin_proxy::ext_note_ports_count(const clap_plugin_t* plugin,
+                                        bool is_input) {
+    assert(plugin && plugin->plugin_data);
+    auto self = static_cast<const clap_plugin_proxy*>(plugin->plugin_data);
+
+    return self->bridge_.send_main_thread_message(
+        clap::ext::note_ports::plugin::Count{.instance_id = self->instance_id(),
+                                             .is_input = is_input});
+}
+
+bool CLAP_ABI
+clap_plugin_proxy::ext_note_ports_get(const clap_plugin_t* plugin,
+                                      uint32_t index,
+                                      bool is_input,
+                                      clap_note_port_info_t* info) {
+    assert(plugin && plugin->plugin_data && info);
+    auto self = static_cast<const clap_plugin_proxy*>(plugin->plugin_data);
+
+    const clap::ext::note_ports::plugin::GetResponse response =
+        self->bridge_.send_main_thread_message(
+            clap::ext::note_ports::plugin::Get{
+                .instance_id = self->instance_id(),
+                .index = index,
+                .is_input = is_input});
+    if (response.result) {
+        response.result->reconstruct(*info);
+
+        return true;
+    } else {
+        return false;
+    }
+}

src/plugin/bridges/clap-impls/plugin-proxy.h

@@ -20,6 +20,7 @@
 #include <vector>
 
 #include <clap/ext/audio-ports.h>
+#include <clap/ext/note-ports.h>
 #include <clap/plugin.h>
 #include <rigtorp/MPMCQueue.h>
 #include <function2/function2.hpp>
@@ -56,6 +57,7 @@ struct ClapHostExtensions {
     clap::host::SupportedHostExtensions supported() const noexcept;
 
     const clap_host_audio_ports_t* audio_ports = nullptr;
+    const clap_host_note_ports_t* note_ports = nullptr;
 };
 
 /**
@@ -130,6 +132,13 @@ class clap_plugin_proxy {
                                              bool is_input,
                                              clap_audio_port_info_t* info);
 
+    static uint32_t CLAP_ABI ext_note_ports_count(const clap_plugin_t* plugin,
+                                                  bool is_input);
+    static bool CLAP_ABI ext_note_ports_get(const clap_plugin_t* plugin,
+                                            uint32_t index,
+                                            bool is_input,
+                                            clap_note_port_info_t* info);
+
     /**
      * Asynchronously run a function on the host's main thread, returning the
      * result as a future.
@@ -186,6 +195,7 @@ class clap_plugin_proxy {
     // depends on whether the plugin supported this extension when we called
     // `clap_plugin::init()`.
     const clap_plugin_audio_ports ext_audio_ports_vtable;
+    const clap_plugin_note_ports ext_note_ports_vtable;
 
     /**
      * The extensions supported by the bridged plugin. Set after a successful

src/plugin/bridges/clap.cpp

@@ -111,6 +111,39 @@ ClapPluginBridge::ClapPluginBridge(const ghc::filesystem::path& plugin_path)
 
                     return Ack{};
                 },
+                [&](const clap::ext::note_ports::host::SupportedDialects&
+                        request)
+                    -> clap::ext::note_ports::host::SupportedDialects::
+                        Response {
+                            const auto& [plugin_proxy, _] =
+                                get_proxy(request.owner_instance_id);
+
+                            return plugin_proxy
+                                .run_on_main_thread(
+                                    [host = plugin_proxy.host_,
+                                     note_ports = plugin_proxy.extensions_
+                                                      .note_ports]() {
+                                        return note_ports->supported_dialects(
+                                            host);
+                                    })
+                                .get();
+                        },
+                [&](const clap::ext::note_ports::host::Rescan& request)
+                    -> clap::ext::note_ports::host::Rescan::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    plugin_proxy
+                        .run_on_main_thread(
+                            [&, host = plugin_proxy.host_,
+                             note_ports =
+                                 plugin_proxy.extensions_.note_ports]() {
+                                note_ports->rescan(host, request.flags);
+                            })
+                        .wait();
+
+                    return Ack{};
+                },
             });
     });
 }