Robin Davies
147 lines
4.8 KiB
C++
147 lines
4.8 KiB
C++
// Copyright (c) 2022 Robin Davies
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#pragma once
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#include "PedalBoard.hpp"
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#include "Lv2Host.hpp"
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#include "Lv2Effect.hpp"
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#include "BufferPool.hpp"
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#include <functional>
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#include <lv2/urid.lv2/urid.h>
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#include <functional>
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namespace pipedal {
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class RealtimeVuBuffers;
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class RealtimeParameterRequest;
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class RealtimeRingBufferWriter;
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class Lv2PedalBoard {
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IHost *pHost = nullptr;
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BufferPool bufferPool;
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std::vector<float*> pedalBoardInputBuffers;
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std::vector<float*> pedalBoardOutputBuffers;
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std::vector<std::shared_ptr<IEffect> > effects;
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std::vector<IEffect* > realtimeEffects; // std::shared_ptr is not thread-safe!!
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using Action = std::function<void()>;
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using ProcessAction = std::function<void(uint32_t frames)>;
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std::vector<Action> activateActions;
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std::vector<ProcessAction> processActions;
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std::vector<Action> deactivateActions;
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float *CreateNewAudioBuffer();
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RealtimeRingBufferWriter *ringBufferWriter;
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enum class MappingType {
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Linear,
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Circular,
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Momentary,
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Latched,
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};
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class MidiMapping {
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public:
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std::shared_ptr<Lv2PluginInfo> pluginInfo; // lifecycle
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const Lv2PortInfo *pPortInfo = nullptr; // owned by port.
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int instanceId = -1;
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int effectIndex = -1;
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int controlIndex = -1;
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int key; // key to the note or control. internal use only.
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bool hasLastValue = false;
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float lastValue = -1;
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MappingType mappingType;
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MidiBinding midiBinding;
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};
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std::vector<MidiMapping> midiMappings;
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std::vector<float*> PrepareItems(
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const std::vector<PedalBoardItem> & items,
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std::vector<float*> inputBuffers
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);
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void PrepareMidiMap(const PedalBoard&pedalBoard);
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void PrepareMidiMap(const PedalBoardItem&pedalBoardItem);
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std::vector<float*> AllocateAudioBuffers(int nChannels);
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int CalculateChainInputs(const std::vector<float *> &inputBuffers, const std::vector<PedalBoardItem> &items);
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void AppendParameterRequest(uint8_t*atomBuffer, LV2_URID uridParameter);
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public:
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Lv2PedalBoard() { }
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~Lv2PedalBoard() { }
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void Prepare(IHost *pHost,const PedalBoard&pedalBoard);
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int GetIndexOfInstanceId(uint64_t instanceId) {
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for (int i = 0; i < this->realtimeEffects.size(); ++i)
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{
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if (this->realtimeEffects[i]->GetInstanceId() == instanceId) return i;
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}
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return -1;
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}
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IEffect*GetEffect(uint64_t instanceId) {
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for (int i = 0; i < realtimeEffects.size(); ++i) {
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if (realtimeEffects[i]->GetInstanceId() == instanceId)
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{
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return realtimeEffects[i];
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}
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}
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return nullptr;
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}
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void Activate();
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void Deactivate();
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bool Run(float**inputBuffers, float**outputBuffers,uint32_t samples, RealtimeRingBufferWriter*realtimeWriter);
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void ResetAtomBuffers();
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void ProcessParameterRequests(RealtimeParameterRequest *pParameterRequests);
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void GatherParameterRequests(RealtimeParameterRequest *pParameterRequests);
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std::vector<float*> &GetInputBuffers() { return this->pedalBoardInputBuffers;}
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std::vector<float*> &GetoutputBuffers() { return this->pedalBoardOutputBuffers;}
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int GetControlIndex(uint64_t instanceId,const std::string&symbol);
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void SetControlValue(int effectIndex, int portIndex, float value);
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void SetBypass(int effectIndex,bool enabled);
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void ComputeVus(RealtimeVuBuffers *vuConfiguration, uint32_t samples);
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float GetControlOutputValue(int effectIndex, int portIndex);
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typedef void (MidiCallbackFn) (void* data,uint64_t intanceId, int controlIndex, float value);
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void OnMidiMessage(size_t size, uint8_t*data,
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void *callbackHandle,
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MidiCallbackFn*pfnCallback);
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};
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} // namespace
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