mirror of
https://github.com/mikeoliphant/neural-amp-modeler-lv2.git
synced 2026-05-07 04:00:09 +02:00
Mike Oliphant
125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
#pragma once
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <random>
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#include <string_view>
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// LV2
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#include <lv2/core/lv2.h>
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#include <lv2/core/lv2_util.h>
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#include <lv2/atom/atom.h>
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#include <lv2/log/log.h>
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#include <lv2/log/logger.h>
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#include <lv2/urid/urid.h>
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#include <lv2/atom/forge.h>
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#include <lv2/buf-size/buf-size.h>
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#include <lv2/options/options.h>
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#include <lv2/patch/patch.h>
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#include <lv2/worker/worker.h>
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#include <lv2/state/state.h>
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#include <lv2/units/units.h>
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#include <NeuralAudio/NeuralModel.h>
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#define PlUGIN_URI "http://github.com/mikeoliphant/neural-amp-modeler-lv2"
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#define MODEL_URI PlUGIN_URI "#model"
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namespace NAM {
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static constexpr unsigned int MAX_FILE_NAME = 1024;
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enum LV2WorkType {
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kWorkTypeLoad,
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kWorkTypeSwitch,
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kWorkTypeFree
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};
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struct LV2LoadModelMsg {
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LV2WorkType type;
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char path[MAX_FILE_NAME];
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};
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struct LV2SwitchModelMsg {
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LV2WorkType type;
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char path[MAX_FILE_NAME];
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NeuralAudio::NeuralModel* model;
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};
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struct LV2FreeModelMsg {
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LV2WorkType type;
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NeuralAudio::NeuralModel* model;
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};
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class Plugin {
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public:
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struct Ports {
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const LV2_Atom_Sequence* control;
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LV2_Atom_Sequence* notify;
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const float* audio_in;
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float* audio_out;
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float* input_level;
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float* output_level;
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};
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Ports ports = {};
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double sampleRate;
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LV2_URID_Map* map = nullptr;
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LV2_Log_Logger logger = {};
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LV2_Worker_Schedule* schedule = nullptr;
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NeuralAudio::NeuralModel* currentModel = nullptr;
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std::string currentModelPath;
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float prevDCInput = 0;
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float prevDCOutput = 0;
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Plugin();
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~Plugin();
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bool initialize(double rate, const LV2_Feature* const* features) noexcept;
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void set_max_buffer_size(int size) noexcept;
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void process(uint32_t n_samples) noexcept;
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void write_current_path();
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static uint32_t options_get(LV2_Handle instance, LV2_Options_Option* options);
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static uint32_t options_set(LV2_Handle instance, const LV2_Options_Option* options);
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static LV2_Worker_Status work(LV2_Handle instance, LV2_Worker_Respond_Function respond, LV2_Worker_Respond_Handle handle,
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uint32_t size, const void* data);
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static LV2_Worker_Status work_response(LV2_Handle instance, uint32_t size, const void* data);
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static LV2_State_Status save(LV2_Handle instance, LV2_State_Store_Function store, LV2_State_Handle handle, uint32_t flags,
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const LV2_Feature* const* features);
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static LV2_State_Status restore(LV2_Handle instance, LV2_State_Retrieve_Function retrieve, LV2_State_Handle handle, uint32_t flags,
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const LV2_Feature* const* features);
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private:
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struct URIs {
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LV2_URID atom_Object;
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LV2_URID atom_Float;
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LV2_URID atom_Int;
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LV2_URID atom_Path;
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LV2_URID atom_URID;
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LV2_URID bufSize_maxBlockLength;
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LV2_URID patch_Set;
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LV2_URID patch_Get;
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LV2_URID patch_property;
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LV2_URID patch_value;
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LV2_URID units_frame;
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LV2_URID model_Path;
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};
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URIs uris = {};
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LV2_Atom_Forge atom_forge = {};
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LV2_Atom_Forge_Frame sequence_frame;
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float inputLevel = 0;
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float outputLevel = 0;
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int32_t maxBufferSize = 512;
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};
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}
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