160 lines
6.0 KiB
C
160 lines
6.0 KiB
C
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/*
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==============================================================================
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This file is part of the JUCE examples.
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Copyright (c) 2020 - Raw Material Software Limited
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The code included in this file is provided under the terms of the ISC license
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http://www.isc.org/downloads/software-support-policy/isc-license. Permission
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To use, copy, modify, and/or distribute this software for any purpose with or
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without fee is hereby granted provided that the above copyright notice and
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this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
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WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
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PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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/*******************************************************************************
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The block below describes the properties of this PIP. A PIP is a short snippet
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of code that can be read by the Projucer and used to generate a JUCE project.
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BEGIN_JUCE_PIP_METADATA
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name: SIMDRegisterDemo
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version: 1.0.0
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vendor: JUCE
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website: http://juce.com
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description: SIMD register demo using the DSP module.
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dependencies: juce_audio_basics, juce_audio_devices, juce_audio_formats,
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juce_audio_processors, juce_audio_utils, juce_core,
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juce_data_structures, juce_dsp, juce_events, juce_graphics,
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juce_gui_basics, juce_gui_extra
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exporters: xcode_mac, vs2019, linux_make
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moduleFlags: JUCE_STRICT_REFCOUNTEDPOINTER=1
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type: Component
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mainClass: SIMDRegisterDemo
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useLocalCopy: 1
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END_JUCE_PIP_METADATA
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*******************************************************************************/
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#pragma once
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#include "../Assets/DemoUtilities.h"
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#include "../Assets/DSPDemos_Common.h"
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using namespace dsp;
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//==============================================================================
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struct SIMDRegisterDemoDSP
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{
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void prepare (const ProcessSpec& spec)
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{
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sampleRate = spec.sampleRate;
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iirCoefficients = IIR::Coefficients<float>::makeLowPass (sampleRate, 440.0f);
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iir.reset (new IIR::Filter<SIMDRegister<float>> (iirCoefficients));
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interleaved = AudioBlock<SIMDRegister<float>> (interleavedBlockData, 1, spec.maximumBlockSize);
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zero = AudioBlock<float> (zeroData, SIMDRegister<float>::size(), spec.maximumBlockSize);
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zero.clear();
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auto monoSpec = spec;
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monoSpec.numChannels = 1;
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iir->prepare (monoSpec);
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}
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void process (const ProcessContextReplacing<float>& context)
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{
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jassert (context.getInputBlock().getNumSamples() == context.getOutputBlock().getNumSamples());
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jassert (context.getInputBlock().getNumChannels() == context.getOutputBlock().getNumChannels());
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auto& input = context.getInputBlock();
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auto& output = context.getOutputBlock();
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auto n = (int) input.getNumSamples();
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auto* inout = channelPointers.getData();
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for (size_t ch = 0; ch < SIMDRegister<float>::size(); ++ch)
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inout[ch] = (ch < input.getNumChannels() ? const_cast<float*> (input.getChannelPointer (ch)) : zero.getChannelPointer (ch));
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using DstSampleType = AudioData::Pointer<AudioData::Float32, AudioData::NativeEndian, AudioData::Interleaved, AudioData::NonConst>;
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using SrcSampleType = AudioData::Pointer<AudioData::Float32, AudioData::NativeEndian, AudioData::NonInterleaved, AudioData::NonConst>;
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DstSampleType dstData (interleaved.getChannelPointer (0), (int) interleaved.getNumChannels());
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SrcSampleType srcData (inout);
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dstData.convertSamples (srcData, n);
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iir->process (ProcessContextReplacing<SIMDRegister<float>> (interleaved));
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for (size_t ch = 0; ch < input.getNumChannels(); ++ch)
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inout[ch] = output.getChannelPointer (ch);
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srcData.convertSamples (dstData, n);
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}
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void reset()
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{
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iir.reset();
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}
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void updateParameters()
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{
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if (sampleRate != 0.0)
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{
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auto cutoff = static_cast<float> (cutoffParam.getCurrentValue());
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auto qVal = static_cast<float> (qParam.getCurrentValue());
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switch (typeParam.getCurrentSelectedID())
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{
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case 1: *iirCoefficients = IIR::ArrayCoefficients<float>::makeLowPass (sampleRate, cutoff, qVal); break;
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case 2: *iirCoefficients = IIR::ArrayCoefficients<float>::makeHighPass (sampleRate, cutoff, qVal); break;
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case 3: *iirCoefficients = IIR::ArrayCoefficients<float>::makeBandPass (sampleRate, cutoff, qVal); break;
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default: break;
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}
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}
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}
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//==============================================================================
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IIR::Coefficients<float>::Ptr iirCoefficients;
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std::unique_ptr<IIR::Filter<SIMDRegister<float>>> iir;
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AudioBlock<SIMDRegister<float>> interleaved;
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AudioBlock<float> zero;
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HeapBlock<char> interleavedBlockData, zeroData;
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HeapBlock<const float*> channelPointers { SIMDRegister<float>::size() };
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ChoiceParameter typeParam { { "Low-pass", "High-pass", "Band-pass" }, 1, "Type" };
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SliderParameter cutoffParam { { 20.0, 20000.0 }, 0.5, 440.0f, "Cutoff", "Hz" };
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SliderParameter qParam { { 0.3, 20.0 }, 0.5, 0.7, "Q" };
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std::vector<DSPDemoParameterBase*> parameters { &typeParam, &cutoffParam, &qParam };
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double sampleRate = 0.0;
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};
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struct SIMDRegisterDemo : public Component
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{
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SIMDRegisterDemo()
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{
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addAndMakeVisible (fileReaderComponent);
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setSize (750, 500);
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}
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void resized() override
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{
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fileReaderComponent.setBounds (getLocalBounds());
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}
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AudioFileReaderComponent<SIMDRegisterDemoDSP> fileReaderComponent;
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};
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