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yabridge/src/common/serialization/vst3/plugin/automation-state.h
T
2021-01-10 23:34:23 +01:00

92 lines
2.5 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
// Great! They forgot an include in `ivstautomationstate.h`
#include <pluginterfaces/base/funknown.h>
#include <pluginterfaces/vst/ivstautomationstate.h>
#include "../../common.h"
#include "../base.h"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
/**
* Wraps around `IAutomationState` for serialization purposes. This is
* instantiated as part of `Vst3PluginProxy`.
*/
class YaAutomationState : public Steinberg::Vst::IAutomationState {
public:
/**
* These are the arguments for creating a `YaAutomationState`.
*/
struct ConstructArgs {
ConstructArgs();
/**
* Check whether an existing implementation implements
* `IAutomationState` 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.
*/
YaAutomationState(const ConstructArgs&& args);
inline bool supported() const { return arguments.supported; }
/**
* Message to pass through a call to
* `IAutomationState::setAutomationState(state)` to the Wine plugin host.
*/
struct SetAutomationState {
using Response = UniversalTResult;
native_size_t instance_id;
int32 state;
template <typename S>
void serialize(S& s) {
s.value8b(instance_id);
s.value4b(state);
}
};
virtual tresult PLUGIN_API setAutomationState(int32 state) override = 0;
protected:
ConstructArgs arguments;
};
#pragma GCC diagnostic pop