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yabridge/src/common/serialization/vst3/component-handler/unit-handler-2.h
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2021-01-16 18:02:15 +01:00

87 lines
2.4 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/ivstunits.h>
#include "../../common.h"
#include "../base.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
/**
* Wraps around `IUnitHandler2` for serialization purposes. This is instantiated
* as part of `Vst3ComponentHandlerProxy`.
*/
class YaUnitHandler2 : public Steinberg::Vst::IUnitHandler2 {
public:
/**
* These are the arguments for creating a `YaUnitHandler2`.
*/
struct ConstructArgs {
ConstructArgs();
/**
* Check whether an existing implementation implements `IUnitHandler2`
* and read arguments from it.
*/
ConstructArgs(Steinberg::IPtr<Steinberg::FUnknown> object);
/**
* 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.
*/
YaUnitHandler2(const ConstructArgs&& args);
inline bool supported() const { return arguments.supported; }
/**
* Message to pass through a call to
* `IUnitHandler2::notifyUnitByBusChange()` to the unit handler provided by
* the host.
*/
struct NotifyUnitByBusChange {
using Response = UniversalTResult;
native_size_t owner_instance_id;
template <typename S>
void serialize(S& s) {
s.value8b(owner_instance_id);
}
};
virtual tresult PLUGIN_API notifyUnitByBusChange() override = 0;
protected:
ConstructArgs arguments;
};
#pragma GCC diagnostic pop