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111 lines
3.8 KiB
C++
111 lines
3.8 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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/**
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Acting as a ResponderListener, instances of this class can formulate
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appropriate replies to profile transactions initiated by remote devices.
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ProfileHost instances also contains methods to inform remote devices about
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changes to local profile state.
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Stores the current state of profiles on the local device.
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@tags{Audio}
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*/
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class ProfileHost final : public ResponderDelegate
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{
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public:
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/** @internal
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Rather than constructing one of these objects yourself, you should configure
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a Device with profile support, and then use Device::getProfileHost()
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to retrieve a profile host that has been set up to work with that device.
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*/
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ProfileHost (FunctionBlock fb, ProfileDelegate& d, BufferOutput& o)
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: functionBlock (fb), delegate (d), output (o) {}
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/** Adds support for a profile on the specified group/channel with a
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maximum number of channels that may be activated.
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*/
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void addProfile (ProfileAtAddress, int maxNumChannels = 1);
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/** Removes support for a profile on the specified group/channel.
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*/
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void removeProfile (ProfileAtAddress);
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/** Activates or deactivates a profile on the specified group/channel.
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The profile should previously have been added with addProfile().
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A positive value of numChannels will enable the profile, and a non-positive value
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will disable it. This includes group and function-block profiles; passing any positive
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value will enable the profile on the entire group or block.
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*/
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void setProfileEnablement (ProfileAtAddress, int numChannels);
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/** Returns the profile states (supported/active) for all groups and channels.
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*/
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const BlockProfileStates& getProfileStates() const { return states; }
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/** Returns the number of supported and active channels for the given
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profile on the specified group/channel.
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If the supported channels is 0, then the profile is not supported
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on the group/channel.
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If the active channels is 0, then the profile is inactive on the
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group/channel.
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*/
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SupportedAndActive getState (ProfileAtAddress profileAtAddress) const
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{
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if (auto* state = states.getStateForDestination (profileAtAddress.address))
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return state->get (profileAtAddress.profile);
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return {};
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}
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/** @internal */
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bool tryRespond (ResponderOutput&, const Message::Parsed&) override;
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private:
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class Visitor;
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void enableProfileImpl (ProfileAtAddress, int);
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void disableProfileImpl (ProfileAtAddress);
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template <typename Body>
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bool profileEnablementReceived (ResponderOutput&, const Body&);
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FunctionBlock functionBlock;
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ProfileDelegate& delegate;
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BufferOutput& output;
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BlockProfileStates states;
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bool isResponder = false;
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std::optional<ProfileAtAddress> currentEnablementMessage;
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};
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} // namespace juce::midi_ci
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