mirror of
https://github.com/robbert-vdh/yabridge.git
synced 2026-05-07 20:10:13 +02:00
Add an IConnectionPoint proxy proxy
This is a bit dumb, but this way we can support indirectly connected objects.
This commit is contained in:
Robbert van der Helm
@@ -90,6 +90,7 @@ vst3_plugin_sources = [
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'src/common/serialization/vst3/attribute-list.cpp',
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'src/common/serialization/vst3/base.cpp',
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'src/common/serialization/vst3/component-handler-proxy.cpp',
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'src/common/serialization/vst3/connection-point-proxy.cpp',
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'src/common/serialization/vst3/event-list.cpp',
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'src/common/serialization/vst3/host-context-proxy.cpp',
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'src/common/serialization/vst3/message.cpp',
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@@ -145,6 +146,7 @@ if with_vst3
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'src/common/serialization/vst3/attribute-list.cpp',
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'src/common/serialization/vst3/base.cpp',
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'src/common/serialization/vst3/component-handler-proxy.cpp',
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'src/common/serialization/vst3/connection-point-proxy.cpp',
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'src/common/serialization/vst3/event-list.cpp',
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'src/common/serialization/vst3/host-context-proxy.cpp',
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'src/common/serialization/vst3/message.cpp',
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@@ -7,18 +7,19 @@ serialization works.
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VST3 plugin interfaces are implemented as follows:
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| yabridge class | Included in | Interfaces |
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| ------------------- | ------------------- | ------------------------------------------------------ |
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| `YaPluginFactory` | | `IPluginFactory`, `IPluginFactory2`, `IPluginFactory3` |
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| `Vst3PlugViewProxy` | | All of the below: |
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| `YaPlugView` | `Vst3PlugViewProxy` | `IPlugView` |
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| `Vst3PluginProxy` | | All of the below: |
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| `YaAudioProcessor` | `Vst3PluginProxy` | `IAudioProcessor` |
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| `YaComponent` | `Vst3PluginProxy` | `IComponent` |
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| `YaConnectionPoint` | `Vst3PluginProxy` | `IConnectionPoint` |
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| `YaEditController` | `Vst3PluginProxy` | `IEditController` |
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| `YaEditController2` | `Vst3PluginProxy` | `IEditController2` |
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| `YaPluginBase` | `Vst3PluginProxy` | `IPluginBase` |
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| yabridge class | Included in | Interfaces |
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| -------------------------- | ------------------- | ------------------------------------------------------ |
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| `YaPluginFactory` | | `IPluginFactory`, `IPluginFactory2`, `IPluginFactory3` |
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| `Vst3ConnectionPointProxy` | | `IConnectionPoint` through `YaConnectionPoint` |
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| `Vst3PlugViewProxy` | | All of the below: |
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| `YaPlugView` | `Vst3PlugViewProxy` | `IPlugView` |
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| `Vst3PluginProxy` | | All of the below: |
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| `YaAudioProcessor` | `Vst3PluginProxy` | `IAudioProcessor` |
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| `YaComponent` | `Vst3PluginProxy` | `IComponent` |
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| `YaConnectionPoint` | `Vst3PluginProxy` | `IConnectionPoint` |
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| `YaEditController` | `Vst3PluginProxy` | `IEditController` |
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| `YaEditController2` | `Vst3PluginProxy` | `IEditController2` |
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| `YaPluginBase` | `Vst3PluginProxy` | `IPluginBase` |
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VST3 host interfaces are implemented as follows:
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@@ -0,0 +1,51 @@
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// yabridge: a Wine VST bridge
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// Copyright (C) 2020 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#include "connection-point-proxy.h"
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Vst3ConnectionPointProxy::ConstructArgs::ConstructArgs() {}
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Vst3ConnectionPointProxy::ConstructArgs::ConstructArgs(
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Steinberg::IPtr<Steinberg::FUnknown> object,
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size_t owner_instance_id)
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: owner_instance_id(owner_instance_id), connection_point_args(object) {}
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Vst3ConnectionPointProxy::Vst3ConnectionPointProxy(const ConstructArgs&& args)
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: YaConnectionPoint(std::move(args.connection_point_args)),
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arguments(std::move(args)){FUNKNOWN_CTOR}
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Vst3ConnectionPointProxy::~Vst3ConnectionPointProxy() {
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FUNKNOWN_DTOR
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}
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wdelete-non-virtual-dtor"
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IMPLEMENT_REFCOUNT(Vst3ConnectionPointProxy)
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#pragma GCC diagnostic pop
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tresult PLUGIN_API
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Vst3ConnectionPointProxy::queryInterface(Steinberg::FIDString _iid,
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void** obj) {
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if (YaConnectionPoint::supported()) {
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QUERY_INTERFACE(_iid, obj, Steinberg::FUnknown::iid,
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Steinberg::Vst::IConnectionPoint)
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QUERY_INTERFACE(_iid, obj, Steinberg::Vst::IConnectionPoint::iid,
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Steinberg::Vst::IConnectionPoint)
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}
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*obj = nullptr;
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return Steinberg::kNoInterface;
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}
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@@ -0,0 +1,104 @@
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// yabridge: a Wine VST bridge
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// Copyright (C) 2020 Robbert van der Helm
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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#pragma once
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#include "../common.h"
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#include "plugin/connection-point.h"
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
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/**
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* This is only needed to...proxy a connection point proxy. Most hosts will
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* connect a plugin's processor and controller directly using
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* `IConnectionPoint::connect()`. But some hosts, like Ardour, will place a
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* proxy object between them that forwards calls to
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* `IConnectionPoint::notify()`. When objects are connected directly by the host
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* we can also connect them directly in the Wine plugin host, but when the host
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* uses proxies we'll also have to go through that proxy. The purpose of this
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* class is to provide a proxy for such a connection proxy. So when the plugin
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* calls `notify()` on an object of this class, then we will forward that call
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* to the `IConnectionPoint` proxy provided by the host, which will then in turn
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* call `IConnectionPoint::notify()` on the other object and we'll then forward
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* that message again to them Wine plugin host.
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*/
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class Vst3ConnectionPointProxy : public YaConnectionPoint {
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public:
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/**
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* These are the arguments for constructing a
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* `Vst3ConnectionPointProxyImpl`.
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*/
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struct ConstructArgs {
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ConstructArgs();
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/**
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* Read from an existing object. We will try to mimic this object, so
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* we'll support any interfaces this object also supports.
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*
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* This is not necessary in this case since the object has to support
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* `IConnectionPoint`, but let's stay consistent with the overall style
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* here.
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*/
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ConstructArgs(Steinberg::IPtr<FUnknown> object,
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size_t owner_instance_id);
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/**
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* The unique instance identifier of the proxy object instance this
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* connection proxy has been passed to and thus belongs to. This way we
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* can refer to the correct 'actual' `IConnectionPoint` instance when
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* the plugin calls `notify()` on this proxy object.
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*/
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native_size_t owner_instance_id;
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YaConnectionPoint::ConstructArgs connection_point_args;
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template <typename S>
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void serialize(S& s) {
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s.value8b(owner_instance_id);
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s.object(connection_point_args);
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}
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};
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/**
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* Instantiate this instance with arguments read from an actual
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* `IConnectionPoint` object/proxy.
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*
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* @note This object will be created as part of handling
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* `IConnectionPoint::connect()` if the connection is indirect.
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*/
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Vst3ConnectionPointProxy(const ConstructArgs&& args);
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/**
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* This object will be destroyed again during
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* `IConnectionPoint::disconnect()`.
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*/
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virtual ~Vst3ConnectionPointProxy();
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DECLARE_FUNKNOWN_METHODS
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/**
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* Get the instance ID of the owner of this object.
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*/
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inline size_t owner_instance_id() const {
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return arguments.owner_instance_id;
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}
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private:
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ConstructArgs arguments;
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};
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#pragma GCC diagnostic pop
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