Split up the VST3 class implementations

2026-06-10 06:12:14 +02:00 · 2020-12-11 22:37:20 +01:00
parent 9439a62d94
commit d1d85711f0
6 changed files with 106 additions and 72 deletions
@@ -0,0 +1,69 @@
+// yabridge: a Wine VST bridge
+// Copyright (C) 2020  Robbert van der Helm
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "plugin-factory.h"
+
+#include <pluginterfaces/vst/ivstcomponent.h>
+
+#include "component.h"
+
+YaPluginFactoryPluginImpl::YaPluginFactoryPluginImpl(Vst3PluginBridge& bridge)
+    : bridge(bridge) {}
+
+tresult PLUGIN_API
+YaPluginFactoryPluginImpl::createInstance(Steinberg::FIDString cid,
+                                          Steinberg::FIDString _iid,
+                                          void** obj) {
+    // TODO: Do the same thing for other types
+    ArrayUID cid_array;
+    std::copy(cid, cid + sizeof(Steinberg::TUID), cid_array.begin());
+    if (Steinberg::FIDStringsEqual(_iid, Steinberg::Vst::IComponent::iid)) {
+        std::optional<YaComponent::Arguments> args =
+            bridge.send_message(YaComponent::Create{.cid = cid_array});
+        if (args) {
+            // I find all of these raw pointers scary
+            *obj = new YaComponentPluginImpl(bridge, std::move(*args));
+            return Steinberg::kResultOk;
+        } else {
+            return Steinberg::kNotImplemented;
+        }
+    } else {
+        // When the host requests an interface we do not (yet) implement, we'll
+        // print a recognizable log message. I don't think they include a safe
+        // way to convert a `FIDString/char*` into a `FUID`, so this will have
+        // to do.
+        char iid_string[128] = "<invalid_pointer>";
+        constexpr size_t uid_size = sizeof(Steinberg::TUID);
+        if (_iid && strnlen(_iid, uid_size + 1) == uid_size) {
+            Steinberg::FUID iid = Steinberg::FUID::fromTUID(
+                *reinterpret_cast<const Steinberg::TUID*>(&_iid));
+            iid.print(iid_string, Steinberg::FUID::UIDPrintStyle::kCLASS_UID);
+        }
+
+        bridge.logger.log("[Unknown interface] " + std::string(iid_string));
+
+        return Steinberg::kNotImplemented;
+    }
+}
+
+tresult PLUGIN_API
+YaPluginFactoryPluginImpl::setHostContext(Steinberg::FUnknown* /*context*/) {
+    // TODO: The docs don't clearly specify what this should be doing, but from
+    //       what I've seen this is only used to pass a `IHostApplication`
+    //       instance. That's used to allow the plugin to create objects in the
+    //       host.
+    return Steinberg::kNotImplemented;
+}