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https://github.com/robbert-vdh/yabridge.git
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Robbert van der Helm
92 lines
3.7 KiB
C++
92 lines
3.7 KiB
C++
// 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 "host-context-proxy.h"
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#include <iostream>
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#include "../../../common/serialization/vst3/attribute-list.h"
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#include "../../../common/serialization/vst3/message.h"
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Vst3HostContextProxyImpl::Vst3HostContextProxyImpl(
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Vst3Bridge& bridge,
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Vst3HostContextProxy::ConstructArgs&& args)
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: Vst3HostContextProxy(std::move(args)), bridge(bridge) {
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// The lifecycle of this object is managed together with that of the plugin
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// object instance this host context got passed to
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}
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tresult PLUGIN_API
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Vst3HostContextProxyImpl::queryInterface(const Steinberg::TUID _iid,
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void** obj) {
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// I don't think it's expected of a host to implement multiple interfaces on
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// this object, so if we do get a call here it's important that it's logged
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// TODO: Successful queries should also be logged
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const tresult result = Vst3HostContextProxy::queryInterface(_iid, obj);
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if (result != Steinberg::kResultOk) {
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bridge.logger.log_unknown_interface("In FUnknown::queryInterface()",
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Steinberg::FUID::fromTUID(_iid));
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}
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return result;
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}
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tresult PLUGIN_API
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Vst3HostContextProxyImpl::getName(Steinberg::Vst::String128 name) {
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const GetNameResponse response = bridge.send_message(
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YaHostApplication::GetName{.owner_instance_id = owner_instance_id()});
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std::copy(response.name.begin(), response.name.end(), name);
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name[response.name.size()] = 0;
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return response.result;
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}
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tresult PLUGIN_API
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Vst3HostContextProxyImpl::createInstance(Steinberg::TUID /*cid*/,
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Steinberg::TUID _iid,
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void** obj) {
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// Class IDs don't have a meaning here, they just mirrored the interface
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// from `IPlugFactory::createInstance()`
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constexpr size_t uid_size = sizeof(Steinberg::TUID);
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if (!_iid || !obj || strnlen(_iid, uid_size) < uid_size) {
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return Steinberg::kInvalidArgument;
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}
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// These objects don't have to be created by the actual host since they'll
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// only be used as an argument to other functions. We can just serialize
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// them at that point.
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Steinberg::FUID iid = Steinberg::FUID::fromTUID(_iid);
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if (iid == Steinberg::Vst::IMessage::iid) {
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// TODO: Add logging for this on verbosity level 1
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*obj = static_cast<Steinberg::Vst::IMessage*>(new YaMessage{});
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return Steinberg::kResultTrue;
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} else if (iid == Steinberg::Vst::IAttributeList::iid) {
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// TODO: Add logging for this on verbosity level 1
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*obj =
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static_cast<Steinberg::Vst::IAttributeList*>(new YaAttributeList{});
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return Steinberg::kResultTrue;
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} else {
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// When the host requests an interface we do not (yet) implement,
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// we'll print a recognizable log message
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const Steinberg::FUID uid = Steinberg::FUID::fromTUID(_iid);
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bridge.logger.log_unknown_interface(
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"In IHostApplication::createInstance()", uid);
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return Steinberg::kNotImplemented;
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}
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}
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