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zsliu98zsliu98
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feat(zlp): add filter attach
1 parent fe738b5 commit 6f012a4

5 files changed

Lines changed: 122 additions & 0 deletions

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‎source/PluginProcessor.cpp‎

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@@ -29,6 +29,9 @@ PluginProcessor::PluginProcessor() :
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zlstate::getNAParameterLayout()),
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controller_(*this),
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a_bypass_(*parameters_.getRawParameterValue(zlp::PBypass::kID)) {
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for (size_t i = 0; i < zlp::kBandNum; ++i) {
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filter_attachments_[i] = std::make_unique<zlp::FilterAttach>(*this, parameters_, controller_, i);
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}
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}
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PluginProcessor::~PluginProcessor() = default;

‎source/PluginProcessor.h‎

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@@ -74,6 +74,8 @@ class PluginProcessor final : public juce::AudioProcessor {
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private:
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zlp::Controller controller_;
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std::array<std::unique_ptr<zlp::FilterAttach>, zlp::kBandNum> filter_attachments_;
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std::atomic<double> sample_rate_{48000.0};
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std::atomic<float>& a_bypass_;
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‎source/zlp/filter_attach.cpp‎

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// Copyright (C) 2026 - zsliu98
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// This file is part of ZLSpectrumEqualizer
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//
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// ZLSpectrumEqualizer is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License Version 3 as published by the Free Software Foundation.
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//
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// ZLSpectrumEqualizer is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License along with ZLSpectrumEqualizer. If not, see <https://www.gnu.org/licenses/>.
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#include "filter_attach.hpp"
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namespace zlp {
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FilterAttach::FilterAttach(juce::AudioProcessor&,
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juce::AudioProcessorValueTreeState& parameters,
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Controller& controller, const size_t idx) :
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parameters_(parameters),
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controller_(controller),
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idx_(idx),
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empty_(controller.getEmptyFilters()[idx]),
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scale_(*parameters.getRawParameterValue(PGainScale::kID)),
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gain_(*parameters.getRawParameterValue(PGain::kID + std::to_string(idx))),
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empty_update_flag_(controller.getEmptyUpdateFlags()[idx]),
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spec_update_flag_(controller.getSpecResponseUpdateFlag()),
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whole_update_flag_(controller.getUpdateFlag()) {
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for (size_t i = 0; i < kIDs.size(); ++i) {
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const auto ID = kIDs[i] + std::to_string(idx_);
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parameters_.addParameterListener(ID, this);
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parameterChanged(ID, parameters.getRawParameterValue(ID)->load(std::memory_order::relaxed));
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}
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parameters_.addParameterListener(PGainScale::kID, this);
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}
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FilterAttach::~FilterAttach() {
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for (size_t i = 0; i < kIDs.size(); ++i) {
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parameters_.removeParameterListener(kIDs[i] + std::to_string(idx_), this);
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}
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parameters_.removeParameterListener(PGainScale::kID, this);
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}
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void FilterAttach::parameterChanged(const juce::String& parameter_ID, const float value) {
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if (parameter_ID.startsWith(PFilterStatus::kID)) {
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controller_.setFilterStatus(idx_, static_cast<FilterStatus>(std::round(value)));
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} else if (parameter_ID.startsWith(PFilterType::kID)) {
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empty_.setFilterType(static_cast<zldsp::filter::FilterType>(std::round(value)));
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signal();
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} else if (parameter_ID.startsWith(POrder::kID)) {
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empty_.setOrder(POrder::kOrderArray[static_cast<size_t>(std::round(value))]);
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signal();
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} else if (parameter_ID.startsWith(PLRMode::kID)) {
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controller_.setLRMS(idx_, static_cast<FilterStereo>(std::round(value)));
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} else if (parameter_ID.startsWith(PFreq::kID)) {
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empty_.setFreq(value);
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signal();
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} else if (parameter_ID.startsWith(PGain::kID)) {
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empty_.setGain(std::clamp(value * (scale_.load(std::memory_order::relaxed) / 100.f), -30.f, 30.f));
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signal();
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} else if (parameter_ID.startsWith(PQ::kID)) {
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empty_.setQ(value);
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signal();
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} else if (parameter_ID.startsWith(PGainScale::kID)) {
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empty_.setGain(std::clamp(gain_.load(std::memory_order::relaxed) * (value / 100.f), -30.f, 30.f));
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signal();
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}
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}
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void FilterAttach::signal() {
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empty_update_flag_.signal();
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spec_update_flag_.signal();
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whole_update_flag_.signal();
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}
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}

‎source/zlp/filter_attach.hpp‎

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// Copyright (C) 2026 - zsliu98
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// This file is part of ZLSpectrumEqualizer
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//
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// ZLSpectrumEqualizer is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License Version 3 as published by the Free Software Foundation.
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//
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// ZLSpectrumEqualizer is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License along with ZLSpectrumEqualizer. If not, see <https://www.gnu.org/licenses/>.
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#pragma once
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#include "controller.hpp"
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#include "juce_helper/para_updater.hpp"
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namespace zlp {
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class FilterAttach final : private juce::AudioProcessorValueTreeState::Listener {
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public:
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explicit FilterAttach(juce::AudioProcessor& processor,
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juce::AudioProcessorValueTreeState& parameters,
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Controller& controller,
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size_t idx);
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~FilterAttach() override;
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private:
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juce::AudioProcessorValueTreeState& parameters_;
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Controller& controller_;
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size_t idx_;
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zldsp::filter::Empty& empty_;
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std::atomic<float>& scale_;
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std::atomic<float>& gain_;
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zlchore::thread::Notifier& empty_update_flag_;
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zlchore::thread::Notifier& spec_update_flag_;
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zlchore::thread::Notifier& whole_update_flag_;
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static constexpr std::array kIDs{
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PFilterStatus::kID, PFilterType::kID, POrder::kID, PLRMode::kID,
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PFreq::kID, PGain::kID, PQ::kID,
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};
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void parameterChanged(const juce::String& parameter_ID, float value) override;
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void signal();
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};
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}

‎source/zlp/zlp.hpp‎

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@@ -11,3 +11,4 @@
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#include "zlp_definitions.hpp"
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#include "controller.hpp"
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#include "filter_attach.hpp"

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