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yabridge/src/common/serialization/vst3/host-context/plug-interface-support.h
T
2021-06-10 23:44:47 +02:00

103 lines
3.2 KiB
C++

// yabridge: a Wine VST bridge
// Copyright (C) 2020-2021 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/>.
#pragma once
#include <pluginterfaces/vst/ivstpluginterfacesupport.h>
#include "../../../bitsery/ext/in-place-optional.h"
#include "../../common.h"
#include "../base.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
/**
* Wraps around `IPlugInterfaceSupport` for serialization purposes. This is
* instantiated as part of `Vst3HostContextProxy`.
*/
class YaPlugInterfaceSupport : public Steinberg::Vst::IPlugInterfaceSupport {
public:
/**
* These are the arguments for creating a `YaPlugInterfaceSupport`.
*/
struct ConstructArgs {
ConstructArgs() noexcept;
/**
* Check whether an existing implementation implements
* `IPlugInterfaceSupport` and read arguments from it.
*/
ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object) noexcept;
/**
* Whether the object supported this interface.
*/
bool supported;
template <typename S>
void serialize(S& s) {
s.value1b(supported);
}
};
/**
* Instantiate this instance with arguments read from another interface
* implementation.
*/
YaPlugInterfaceSupport(const ConstructArgs&& args) noexcept;
inline bool supported() const noexcept { return arguments.supported; }
/**
* Message to pass through a call to
* `IPlugInterfaceSupport::isPlugInterfaceSupported(iid)` to the host
* context provided by the host.
*/
struct IsPlugInterfaceSupported {
using Response = UniversalTResult;
/**
* The object instance whose host context to call this function to. Of
* empty, then the function will be called on the factory's host context
* instead.
*/
std::optional<native_size_t> owner_instance_id;
// TODO: Figure out if we should translate the UIDs from Windows COM to
// non-Windows COM here. I have not actually seen this interface
// used.
WineUID iid;
template <typename S>
void serialize(S& s) {
s.ext(owner_instance_id, bitsery::ext::InPlaceOptional{},
[](S& s, native_size_t& instance_id) {
s.value8b(instance_id);
});
s.object(iid);
}
};
virtual tresult PLUGIN_API
isPlugInterfaceSupported(const Steinberg::TUID _iid) override = 0;
protected:
ConstructArgs arguments;
};
#pragma GCC diagnostic pop