mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
336 lines
13 KiB
C++
336 lines
13 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2022 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 7 End-User License
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Agreement and JUCE Privacy Policy.
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End User License Agreement: www.juce.com/juce-7-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce::midi_ci
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{
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class ProfileHost::Visitor : public detail::MessageTypeUtils::MessageVisitor
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{
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public:
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Visitor (ProfileHost* h, ResponderOutput* o, bool* b)
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: host (h), output (o), handled (b) {}
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void visit (const Message::ProfileInquiry& body) const override { visitImpl (body); }
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void visit (const Message::ProfileDetails& body) const override { visitImpl (body); }
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void visit (const Message::ProfileOn& body) const override { visitImpl (body); }
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void visit (const Message::ProfileOff& body) const override { visitImpl (body); }
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using MessageVisitor::visit;
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static auto getNumChannels (Message::Header header, Message::ProfileOn p)
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{
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return (uint8_t) header.version >= 2 ? p.numChannels : 1;
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}
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static auto getNumChannels (Message::Header, Message::ProfileOff) { return 0; }
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private:
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template <typename Body>
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void visitImpl (const Body& body) const { *handled = messageReceived (body); }
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bool messageReceived (const Message::ProfileInquiry&) const
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{
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host->isResponder = true;
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if ((uint8_t) output->getIncomingHeader().deviceID < 16
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|| output->getIncomingHeader().deviceID == ChannelInGroup::wholeGroup)
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{
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if (const auto* state = host->getProfileStates().groupStates[output->getIncomingGroup()].getStateForDestination (output->getIncomingHeader().deviceID))
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{
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const auto active = state->getActive();
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const auto inactive = state->getInactive();
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detail::MessageTypeUtils::send (*output, Message::ProfileInquiryResponse { active, inactive });
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}
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}
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else if (output->getIncomingHeader().deviceID == ChannelInGroup::wholeBlock)
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{
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auto header = output->getReplyHeader (detail::MessageMeta::Meta<Message::ProfileInquiryResponse>::subID2);
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const auto sendIfNonEmpty = [&] (const auto group, const auto& state)
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{
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if (! state.empty())
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{
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const auto active = state.getActive();
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const auto inactive = state.getInactive();
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detail::MessageTypeUtils::send (*output, (uint8_t) group, header, Message::ProfileInquiryResponse { active, inactive });
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}
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};
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for (auto groupNum = 0; groupNum < host->functionBlock.numGroups; ++groupNum)
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{
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const auto group = host->functionBlock.firstGroup + groupNum;
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const auto& groupState = host->getProfileStates().groupStates[(size_t) group];
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for (size_t channel = 0; channel < groupState.channelStates.size(); ++channel)
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{
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header.deviceID = ChannelInGroup (channel);
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sendIfNonEmpty (group, groupState.channelStates[channel]);
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}
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}
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header.deviceID = ChannelInGroup::wholeGroup;
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for (auto i = 0; i < host->functionBlock.numGroups; ++i)
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{
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const auto group = host->functionBlock.firstGroup + i;
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const auto& groupState = host->getProfileStates().groupStates[(size_t) group];
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sendIfNonEmpty (group, groupState.groupState);
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}
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// Always send the block response to indicate that no further replies will follow
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header.deviceID = ChannelInGroup::wholeBlock;
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const auto state = host->getProfileStates().blockState;
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const auto active = state.getActive();
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const auto inactive = state.getInactive();
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detail::MessageTypeUtils::send (*output, output->getIncomingGroup(), header, Message::ProfileInquiryResponse { active, inactive });
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}
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return true;
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}
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bool messageReceived (const Message::ProfileDetails& body) const
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{
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if (body.target == std::byte{})
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{
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const auto address = ChannelAddress{}.withGroup (output->getIncomingGroup())
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.withChannel (output->getIncomingHeader().deviceID);
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const ProfileAtAddress profileAtAddress { body.profile, address };
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const auto state = host->getState (profileAtAddress);
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std::vector<std::byte> extraData;
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detail::Marshalling::Writer { extraData } (state.active, state.supported);
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detail::MessageTypeUtils::send (*output, Message::ProfileDetailsResponse { body.profile, body.target, extraData });
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}
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else
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{
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detail::MessageTypeUtils::sendNAK (*output, std::byte { 0x04 });
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}
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return true;
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}
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template <typename Body>
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bool profileEnablementReceived (const Body& request) const
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{
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const auto destination = ChannelAddress{}.withGroup (output->getIncomingGroup())
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.withChannel (output->getIncomingHeader().deviceID);
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if (auto* state = host->states.getStateForDestination (destination))
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{
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if (state->get (request.profile).isSupported())
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{
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const auto address = ChannelAddress{}.withGroup (output->getIncomingGroup())
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.withChannel (output->getIncomingHeader().deviceID);
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const ProfileAtAddress profileAtAddress { request.profile, address };
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{
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const ScopedValueSetter scope { host->currentEnablementMessage,
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std::optional<ProfileAtAddress> (profileAtAddress) };
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host->delegate.profileEnablementRequested (output->getIncomingHeader().source,
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profileAtAddress,
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getNumChannels (output->getIncomingHeader(), request),
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std::is_same_v<Message::ProfileOn, Body>);
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}
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const auto currentState = host->getState (profileAtAddress);
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const auto sendResponse = [&] (auto response)
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{
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const Message::Header header
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{
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profileAtAddress.address.getChannel(),
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detail::MessageMeta::Meta<decltype (response)>::subID2,
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detail::MessageMeta::implementationVersion,
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output->getMuid(),
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MUID::getBroadcast(),
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};
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detail::MessageTypeUtils::send (*output, profileAtAddress.address.getGroup(), header, response);
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};
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if (currentState.isActive())
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sendResponse (Message::ProfileEnabledReport { profileAtAddress.profile, currentState.active });
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else
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sendResponse (Message::ProfileDisabledReport { profileAtAddress.profile, 0 });
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host->isResponder = true;
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return true;
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}
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}
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detail::MessageTypeUtils::sendNAK (*output, {});
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return true;
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}
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bool messageReceived (const Message::ProfileOn& request) const
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{
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return profileEnablementReceived (request);
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}
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bool messageReceived (const Message::ProfileOff& request) const
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{
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return profileEnablementReceived (request);
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}
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ProfileHost* host = nullptr;
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ResponderOutput* output = nullptr;
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bool* handled = nullptr;
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};
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void ProfileHost::addProfile (ProfileAtAddress profileAtAddress, int maxNumChannels)
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{
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auto* state = states.getStateForDestination (profileAtAddress.address);
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if (state == nullptr || state->get (profileAtAddress.profile).isSupported())
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return;
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// There are only 256 channels on a UMP endpoint, so requesting more probably doesn't make sense!
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jassert (maxNumChannels <= 256);
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state->set (profileAtAddress.profile, { (uint16_t) maxNumChannels, 0 });
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if (! isResponder || profileAtAddress == currentEnablementMessage)
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return;
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const Message::Header header
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{
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profileAtAddress.address.getChannel(),
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detail::MessageMeta::Meta<Message::ProfileAdded>::subID2,
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detail::MessageMeta::implementationVersion,
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output.getMuid(),
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MUID::getBroadcast(),
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};
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detail::MessageTypeUtils::send (output,
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profileAtAddress.address.getGroup(),
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header,
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Message::ProfileAdded { profileAtAddress.profile });
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}
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void ProfileHost::removeProfile (ProfileAtAddress profileAtAddress)
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{
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auto* state = states.getStateForDestination (profileAtAddress.address);
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if (state == nullptr)
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return;
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disableProfile (profileAtAddress);
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if (! state->get (profileAtAddress.profile).isSupported())
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return;
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state->erase (profileAtAddress.profile);
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if (! isResponder || profileAtAddress == currentEnablementMessage)
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return;
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const Message::Header header
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{
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profileAtAddress.address.getChannel(),
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detail::MessageMeta::Meta<Message::ProfileRemoved>::subID2,
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detail::MessageMeta::implementationVersion,
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output.getMuid(),
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MUID::getBroadcast(),
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};
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detail::MessageTypeUtils::send (output,
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profileAtAddress.address.getGroup(),
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header,
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Message::ProfileRemoved { profileAtAddress.profile });
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}
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void ProfileHost::enableProfile (ProfileAtAddress profileAtAddress, int numChannels)
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{
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auto* state = states.getStateForDestination (profileAtAddress.address);
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if (state == nullptr)
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return;
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const auto old = state->get (profileAtAddress.profile);
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if (! old.isSupported())
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return;
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// There are only 256 channels on a UMP endpoint, so requesting more probably doesn't make sense!
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jassert (numChannels <= 256);
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const auto enabledChannels = jmin (old.supported, (uint16_t) numChannels);
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state->set (profileAtAddress.profile, { old.supported, enabledChannels });
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if (! isResponder || profileAtAddress == currentEnablementMessage)
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return;
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const Message::Header header
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{
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profileAtAddress.address.getChannel(),
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detail::MessageMeta::Meta<Message::ProfileEnabledReport>::subID2,
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detail::MessageMeta::implementationVersion,
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output.getMuid(),
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MUID::getBroadcast(),
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};
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detail::MessageTypeUtils::send (output,
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profileAtAddress.address.getGroup(),
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header,
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Message::ProfileEnabledReport { profileAtAddress.profile, enabledChannels });
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}
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void ProfileHost::disableProfile (ProfileAtAddress profileAtAddress)
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{
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auto* state = states.getStateForDestination (profileAtAddress.address);
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if (state == nullptr)
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return;
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const auto old = state->get (profileAtAddress.profile);
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if (! old.isActive())
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return;
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state->set (profileAtAddress.profile, { old.supported, 0 });
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if (! isResponder || profileAtAddress == currentEnablementMessage)
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return;
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const Message::Header header
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{
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profileAtAddress.address.getChannel(),
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detail::MessageMeta::Meta<Message::ProfileDisabledReport>::subID2,
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detail::MessageMeta::implementationVersion,
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output.getMuid(),
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MUID::getBroadcast(),
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};
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detail::MessageTypeUtils::send (output,
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profileAtAddress.address.getGroup(),
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header,
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Message::ProfileDisabledReport { profileAtAddress.profile, old.active });
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}
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bool ProfileHost::tryRespond (ResponderOutput& responderOutput, const Message::Parsed& message)
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{
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bool result = false;
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detail::MessageTypeUtils::visit (message, Visitor { this, &responderOutput, &result });
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return result;
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}
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} // namespace juce::midi_ci
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