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1 //
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2 // AccessiblePeakMeter.cpp
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3 //
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4 // Author: Fiore Martin
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5 // Started from IPlugMultiTargets example in WDL-OL, by Oli Larkin - https://github.com/olilarkin/wdl-ol
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6 //
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7 // Licensed under the Cockos WDL License, see README.txt
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8 //
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9
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10
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11 #include "AccessiblePeakMeter.h"
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12 #include "IPlug_include_in_plug_src.h"
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13 #include "resource.h"
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14
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15
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16 #include "IControl.h"
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17 #include "IBitmapMonoText.h"
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18 #include "AccessiblePeakMeter_controls.h"
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19
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20
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21 inline double midi2Freq(int note) {
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22 return 440. * pow(2., (note - 69.) / 12.);
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23 }
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24
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25 double toDBMeter(double val, double range)
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26 {
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27 double db;
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28 if (val > 0)
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29 db = ::AmpToDB(val);
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30 else
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31 db = -999;
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32 return BOUNDED((db + 60) / range,0,1);
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33 }
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34
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35 /* reference points for controls layout, by changing these numbers only
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36 the widgets can be moved around and all the other bits (top/left/right
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37 borders, labels etc.) will follow. X and Y refer to the top-left coord */
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38 enum ELayout {
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39 lDryX = 20,
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40 lDryY = 10,
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41 lWetX = 85,
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42 lWetY = 10,
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43
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44 lFaderLen = 190,
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45 lPeakMeterX = 180,
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46 lPeaklMeterY = 30,
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47
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48 lSonifTypeX = 20,
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49 lSonifTypeY = 200,
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50
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51 lDecayRateX = 20,
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52 lDecayRateY = 90
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53 };
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54
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55
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56 enum EParams
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57 {
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58 kDry = 0,
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59 kWet,
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60 kThreshold,
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61 kSonificationType,
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62 kMeterDecayRate,
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63 kNumParams
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64 };
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65
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66
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67 AccessiblePeakMeter::AccessiblePeakMeter(IPlugInstanceInfo instanceInfo)
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68 : IPLUG_CTOR(kNumParams, NUM_PRESETS, instanceInfo),
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69 mDry(DRYWET_DEFAULT),
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70 mWet(DRYWET_DEFAULT),
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71 mMeterDecayRate(1.0),
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72 mSampleRate(44100.),
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73 mThreshold(1.0)
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74 {
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75 TRACE;
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76
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77 for (int i = 0; i < MAX_CHANNELS; i++) {
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78 mPrevPeak[i] = 0.0;
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79 }
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80
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81 //arguments are: name, defaultVal, minVal, maxVal, step, label
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82 GetParam(kDry)->InitDouble("Dry", -6., -61.0, 0., 0.2, "dB");
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83 GetParam(kDry)->SetDisplayText(-61.0, " -inf");
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84 GetParam(kWet)->InitDouble("Wet", -6., -61.0, 0., 0.2, "dB");
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85 GetParam(kWet)->SetDisplayText(-61.0, " -inf");
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86 GetParam(kThreshold)->InitDouble("Threshold", 0.0, -60.0, 6.2, 0.2, "dB");
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87 GetParam(kSonificationType)->InitEnum("Sonification Type", SONIFICATION_TYPE_DEFAULT, 2);
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88 GetParam(kSonificationType)->SetDisplayText(SONIFICATION_TYPE_CONTINUOUS, "Continuous");
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89 GetParam(kSonificationType)->SetDisplayText(SONIFICATION_TYPE_CLIPPING, "Clipping");
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90 GetParam(kMeterDecayRate)->InitDouble("Decay", 1.0, 0.05, 1.0, 0.05, "sec.");
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91
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92 IGraphics* pGraphics = MakeGraphics(this, GUI_WIDTH, GUI_HEIGHT);
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93 pGraphics->AttachBackground(BG_ID, BG_FN);
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94
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95 /* load bitmaps for fader, knob and switch button */
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96 IBitmap knob = pGraphics->LoadIBitmap(KNOB_ID, KNOB_FN, NUM_KNOB_FRAMES);
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97 IBitmap faderBmap = pGraphics->LoadIBitmap(FADER_ID, FADER_FN);
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98 IBitmap aSwitch = pGraphics->LoadIBitmap(SWITCH_ID, SWITCH_FN,2);
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99
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100 /* text has info about the font-size, font-type etc. */
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101 IText text = IText(14);
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102
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103 /* attach sonification type switch to the GUI */
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104 pGraphics->AttachControl(new ISwitchPopUpControl(this, lSonifTypeX ,lSonifTypeY, kSonificationType, &aSwitch));
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105 pGraphics->AttachControl(new ITextControl(this, IRECT(lSonifTypeX+10, lSonifTypeY - 20, lSonifTypeX + 110, lSonifTypeY ), &text, "Sonification Type"));
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106
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107 /* attach dry and wet knobs to GUI */
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108 pGraphics->AttachControl(new IKnobMultiControlText(this, IRECT(lDryX, lDryY, lDryX + 52, lDryY + 48 + 19 + 19 ), kDry, &knob, &text, 27)); // 48 for image, 19 for text
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109 pGraphics->AttachControl(new IKnobMultiControlText(this, IRECT(lWetX, lWetY, lWetX + 52, lWetY + 48 + 19 + 19), kWet, &knob, &text, 27));
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110
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111 /* attach decay rate knob to the GUI */
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112 pGraphics->AttachControl(new IKnobMultiControlText(this, IRECT(lDecayRateX, lDecayRateY, lDecayRateX + 48 , lDecayRateY + 48 + 19 + 19 ), kMeterDecayRate, &knob, &text, 33));
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113
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114 /* attach fader display, which shows the fader value, to GUI */
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115 ITextControl *faderText = new ITextControl(this, IRECT(lPeakMeterX+60, lPeaklMeterY + lFaderLen, lPeakMeterX + faderBmap.W + 95, lPeaklMeterY + lFaderLen + 20), &text);
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116 pGraphics->AttachControl(faderText);
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117
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118 /* attach the fader to GUI */
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119 pGraphics->AttachControl(new IFaderVertText(this, lPeakMeterX, lPeaklMeterY, lFaderLen, kThreshold, &faderBmap, faderText));
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120
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121 pGraphics->AttachControl(new ITextControl(this, IRECT(lPeakMeterX, lPeaklMeterY - 20, lPeakMeterX + 100, lPeaklMeterY), &text, "Peak Level Meter"));
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122 pGraphics->AttachControl(new ITextControl(this, IRECT(lPeakMeterX-20, lPeaklMeterY + lFaderLen, lPeakMeterX + 75, lPeaklMeterY + lFaderLen + 20), &text, "Threshold: "));
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123
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124 /* attach peak meters to GUI.
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125 Half the bitmap height is added to the peak meters on both top and bottom to prevent the
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126 triangular fader from going past the peak meters span
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127 */
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128 const int halfFaderBmapLen = faderBmap.W / 2;
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129 mMeterIdx[0] = pGraphics->AttachControl(new IPeakMeterVert(this,
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130 IRECT(lPeakMeterX + 25, lPeaklMeterY + halfFaderBmapLen, lPeakMeterX + 45, lPeaklMeterY + 170 + halfFaderBmapLen), GetParam(kThreshold)->GetDefaultNormalized()));
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131 mMeterIdx[1] = pGraphics->AttachControl(new IPeakMeterVert(this,
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132 IRECT(lPeakMeterX + 50, lPeaklMeterY + halfFaderBmapLen, lPeakMeterX + 70, lPeaklMeterY + lFaderLen - halfFaderBmapLen), GetParam(kThreshold)->GetDefaultNormalized()));
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133
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134 AttachGraphics(pGraphics);
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135
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136 /* add presets */
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137 MakePreset("Detect Clipping", DRYWET_DEFAULT, DRYWET_DEFAULT, THRESHOLD_DEFAULT, SONIFICATION_TYPE_CLIPPING, METERDECAY_DEFAULT);
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138 MakePreset("Sonify Audio", DRYWET_DEFAULT, DRYWET_DEFAULT, THRESHOLD_DEFAULT, SONIFICATION_TYPE_CONTINUOUS, METERDECAY_DEFAULT);
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139 }
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140
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141 AccessiblePeakMeter::~AccessiblePeakMeter() {}
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142
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143
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144 void AccessiblePeakMeter::ProcessDoubleReplacing(double** inputs, double** outputs, int nFrames)
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145 {
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146 if(mSonification.type == SONIFICATION_TYPE_CONTINUOUS) {
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147 addContinuousSonification(inputs, outputs, nFrames);
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148 } else {
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149 addClippingSonification(inputs, outputs, nFrames);
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150 }
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151 }
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152
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153
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154 void AccessiblePeakMeter::Reset()
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155 {
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156 TRACE;
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157 IMutexLock lock(this);
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158
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159 mSampleRate = GetSampleRate();
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160
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161 mSonification.reset(mSampleRate);
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162
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163 for (int i = 0; i < MAX_CHANNELS; i++) {
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164 mPrevPeak[i] = 0.0;
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165 }
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166
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167 }
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168
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169 void AccessiblePeakMeter::OnParamChange(int paramIdx)
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170 {
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171 IMutexLock lock(this);
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172
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173 switch (paramIdx)
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174 {
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175 case kDry:
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176 /* if the level goes below 60.5 dB, just bring it to silence */
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177 if (GetParam(kDry)->Value() < -60.5 ){
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178 mDry = 0.0;
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179 }
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180 else {
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181 mDry = ::DBToAmp(GetParam(kDry)->Value());
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182 }
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183 break;
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184
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185 case kWet:
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186 if (GetParam(kWet)->Value() < -60.5){
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187 mWet = 0.0;
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188 }
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189 else{
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190 mWet = ::DBToAmp(GetParam(kWet)->Value());
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191 }
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192 break;
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193
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194 case kThreshold:
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195 mThreshold = GetParam(kThreshold)->DBToAmp();
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196 break;
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197
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198 case kMeterDecayRate :
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199 mMeterDecayRate = 1.0 / GetParam(kMeterDecayRate)->Value();
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200 break;
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201
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202 case kSonificationType:
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203 mSonification.type = GetParam(kSonificationType)->Int();
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204
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205 mSonification.reset();
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206
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207 for (int i = 0; i < MAX_CHANNELS; i++) {
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208 mPrevPeak[i] = 0.0;
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209 mSonification.ugen[i].setFrequency(mSonification.type == SONIFICATION_TYPE_CLIPPING ? 440.0 : 0.0);
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210 }
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211 break;
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212
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213 default:
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214 break;
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215 }
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216 }
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217
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218 void AccessiblePeakMeter::addClippingSonification(double** inputs, double** outputs, int nFrames) {
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219 // Mutex is already locked for us.
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220
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221 for (unsigned int channel = 0; channel < NInChannels(); channel++) {
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222 double* in = inputs[channel];
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223 double* out = outputs[channel];
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224 double peak = 0.0;
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225
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226 /* find the max absolute value in the block of samples */
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227 for (int offset = 0; offset < nFrames; ++offset, ++in, ++out) {
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228 const double ampl = fabs(*in); // amplitude
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229 peak = IPMAX(peak, ampl); // find max peak for this block
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230
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231 if (ampl > mThreshold) {
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232 /* find the clipping amount in dB */
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233 double clippingDiff = fabs(::AmpToDB(ampl) - ::AmpToDB(mThreshold));
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234
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235 /* clipDiff will be rounded downward later, but if it's very very
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236 close to the ceil, then let it be the ceil.
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237 */
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238 const double ceilClippingDiff = ceil(clippingDiff);
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239 if (ceilClippingDiff - clippingDiff < CLIPPING_CEILING_SNAP){
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240 clippingDiff = ceilClippingDiff;
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241 }
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242
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243 if (clippingDiff > mSonification.clipping.maxDiff[channel]){
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244 /* bound the difference to 12 semitones to prevent the sonification from going too high */
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245 mSonification.clipping.maxDiff[channel] = BOUNDED(clippingDiff, 0.0, 12.0);
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246 }
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247
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248 /* sonify the difference between the amplitude and threshold *
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249 * one db (rounded downward) is one tone, up to one octave (12 semitones) */
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250 mSonification.ugen[channel].setFrequency(midi2Freq(69 + (int)(mSonification.clipping.maxDiff[channel])));
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251 mSonification.clipping.envelope[channel].keyOn();
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252 }
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253
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254 /* when attack is done switch immediately to RELEASE (keyOff) *
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255 * so it goes like: attack->release->silence */
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256 if (mSonification.clipping.envelope[channel].getState() == stk::ADSR::DECAY) {
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257 mSonification.clipping.envelope[channel].keyOff();
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258 }
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259
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260 /* add the sonification to the mix */
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261 if (mSonification.clipping.envelope[channel].getState() == stk::ADSR::ATTACK ||
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262 mSonification.clipping.envelope[channel].getState() == stk::ADSR::RELEASE) {
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263 const double env = mSonification.clipping.envelope[channel].tick();
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264 const double tick = mSonification.ugen[channel].tick() * env;
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265 *out = mix(*in, tick);
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266 } else { // no sonification
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267 mSonification.clipping.maxDiff[channel] = 0.0; // reset max clipping diff
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268 *out = mix(*in, 0.0); // still honours the user's knobs settings
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269 }
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270 }
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271
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272 /* now draw the peak meter with the maximum of this block of samples */
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273
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274 const double deltaT = nFrames / mSampleRate;
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275 const double decayAmount = deltaT * mMeterDecayRate;
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276
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277 peak = ::toDBMeter(peak, DB_RANGE);
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278
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279 /* max between new peak and old peak decay wins */
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280 peak = IPMAX(peak, mPrevPeak[channel] - decayAmount);
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281
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282 /* save the peak for next block of samples */
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283 mPrevPeak[channel] = peak;
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284
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285 /* update the GUI */
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286 if (GetGUI()) {
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287 GetGUI()->SetControlFromPlug(mMeterIdx[channel], peak);
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288 }
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289 }
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290
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291 }
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292
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293 void AccessiblePeakMeter::addContinuousSonification(double** inputs, double** outputs, int nFrames) {
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294 // Mutex is already locked for us.
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295
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296 const int nChannels = NInChannels();
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297
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298 const double deltaT = nFrames / mSampleRate;
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299 const double decayAmount = deltaT * mMeterDecayRate;
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300
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301 for (int channel = 0; channel < nChannels; channel++){
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302 double peak = 0.0;
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303 double *in = inputs[channel];
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304
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305 /* find the max absolute value in the block of samples */
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306 for (int offset = 0; offset < nFrames; ++offset, ++in) {
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307 peak = IPMAX(peak, fabs(*in));
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308 }
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309
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310 /* pick the max between new audio and peak meter decaying */
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311 peak = ::toDBMeter(peak, DB_RANGE);
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312 peak = IPMAX(peak, mPrevPeak[channel] - decayAmount);
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313
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314 /* set the sonification frequency according to the last peak value */
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315 const double sonifFreq = SONIFICATION_RANGE * peak;
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316 mSonification.ugen[channel].setFrequency(sonifFreq);
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317
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318 /* If level goes below audible level just hush the sonification. *
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319 * this avoids DC offset when sonification frequency gets too low. *
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320 * Uses an envelope to bring the sonification volume down smoothly
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321 */
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322 if (sonifFreq < MIN_SONIFICATION_FREQ){
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323 /* turn the sonification off, if it's not off already */
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324 if (mSonification.continous.isOn[channel]){
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325 mSonification.continous.isOn[channel] = false;
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326 mSonification.continous.envelope[channel].setTarget(0.0);
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327 }
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328 }
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329 else if (!mSonification.continous.isOn[channel]){
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330 /* if the sonification frequency goes past MIN_SONIFICATION_FREQ *
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331 turn it on again unless it's already on */
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332 mSonification.continous.envelope[channel].setValue(1.0);
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333 mSonification.continous.isOn[channel] = true;
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334 }
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335
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336 in = inputs[channel];
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337 double *out = outputs[channel];
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338 /* add peak meter line continuous sonification to output */
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339 for (int offset = 0; offset < nFrames; ++offset, ++in, ++out) {
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340 double tick = mSonification.ugen[channel].tick();
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341 tick *= mSonification.continous.envelope[channel].tick(); // apply envelope
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342 /* write the output buffer: mix original audio + sonification */
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343 *out = mix(*in, tick);
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344 }
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345
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346 /* save the peaks for next block of samples */
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347 mPrevPeak[channel] = peak;
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348
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349 /* update the GUI */
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350 if (GetGUI()) {
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351 GetGUI()->SetControlFromPlug(mMeterIdx[channel], peak);
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352 }
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f@0
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353 }
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f@0
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354 }
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355
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356 //Called by the standalone wrapper if someone clicks about
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357 bool AccessiblePeakMeter::HostRequestingAboutBox()
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358 {
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359 IMutexLock lock(this);
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|
360 if(GetGUI())
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f@0
|
361 {
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f@0
|
362 // do nothing
|
|
f@0
|
363 }
|
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f@0
|
364 return true;
|
|
f@0
|
365 }
|
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f@0
|
366
|
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f@0
|
367
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368 // -------------- static variables init -------------
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|
369
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370 const double AccessiblePeakMeter::DRYWET_DEFAULT = -6.0;
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|
f@2
|
371 const int AccessiblePeakMeter::SONIFICATION_TYPE_DEFAULT = 1;
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|
372 const double AccessiblePeakMeter::METERDECAY_DEFAULT = 60.0;
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|
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|
373 const double AccessiblePeakMeter::THRESHOLD_DEFAULT = 0.0;
|
|
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|
374
|
|
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|
375 const double AccessiblePeakMeter::DB_RANGE = 66.0;
|
|
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|
376 const double AccessiblePeakMeter::SONIFICATION_RANGE = 2000;
|
|
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|
377 const int AccessiblePeakMeter::SONIFICATION_TYPE_CLIPPING = 1;
|
|
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|
378 const int AccessiblePeakMeter::SONIFICATION_TYPE_CONTINUOUS = 0;
|
|
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|
379 const double AccessiblePeakMeter::BEEP_TIME = 0.2;
|
|
f@0
|
380 const double AccessiblePeakMeter::MIN_SONIFICATION_FREQ = 20.0;
|
|
f@0
|
381 const double AccessiblePeakMeter::CLIPPING_CEILING_SNAP = 0.05;
|
|
f@0
|
382
|
|
f@0
|
383 const int AccessiblePeakMeter::NUM_KNOB_FRAMES = 60;
|
|
f@0
|
384 const int AccessiblePeakMeter::NUM_PRESETS = 2;
|
|
f@0
|
385
|
|
f@0
|
386
|
