Audio: Added Stereo Support

RainbowLine: Moved FadeOut effect to Keyboard
Loudness: Changed to use Stereo
Keyboard: Fixed Wrong Column Mapping

README.md

@@ -49,13 +49,18 @@ shutdown_color_red=235
 shutdown_color_green=0
 shutdown_color_blue=141
 shutdown_brightness=50
+rainbow_tail_factor=30
 ```
 
 # TODO
 
-- Support for custom Scripts without writing C++
+- [ ] Support for custom Scripts without writing C++
-- VWeb Interface to control Configs without restarting
+  - [ ] LUA (sol2)
-- Less CPU Usage
+    - [ ] Helper Functions
-- Keyboard Mapping
+    - [ ] Keyboard Mapper
-- Macro Support
+- [ ] Web Interface to control Configs without restarting
-- Execute of Script on Hotkeys
+  - [ ] VWeb Implementing
+- [x] Keyboard Mapping
+- [ ] Keyboard Input Event-Handler
+- [ ] Macro Support
+    - [ ] Execute of Script on Hotkeys (LUA)

headers/VulcanoLE/Audio/AudioGrabber.h

@@ -35,8 +35,8 @@ public:
     void init();
     FFT fft;
     ReqMode requestMode = ReqMode::FFT;
-    double loudness = 0.0;
+    stereoSampleFrame loudness = {0.0, 0.0};
-    float getLoudness();
+    stereoSampleFrame getLoudness();
     bool work();
     VUtils::Environment *env = nullptr;
 private:

headers/VulcanoLE/Keyboards/Vulcan121.h

@@ -39,6 +39,7 @@ public:
     int getIndex(int row, int col);
     // PLEASE MAKE SURE YOU KNOW THE LIMITS!
     int getIndexNoCheck(int row, int col);
+    static void fadeOutMap(led_map* map, double factor);
 protected:
     void setupMap();
     // we need some mapping feature! rows and cols dont have the same amount of keys. so the struct needs

headers/VulcanoLE/Scripts/Loudness.h

@@ -1,4 +1,5 @@
 #pragma once
+
 #include <VulcanoLE/Visual/VIZ.h>
 #include <VulcanoLE/Audio/AudioGrabber.h>
 #include <VulcanoLE/Keyboards/Vulcan121.h>
@@ -10,9 +11,18 @@ namespace VIZ {
         ~Loudness() override = default;
         void onSetup() override;
         void onTick(float delta) override;
-        float lastVal = 0;
+        void setForChannel(float value, int channel);
+        void drawFrame(int toRow);
         const char *name() override;
         std::string m_name = "Loudness Meter";
+    protected:
+        rgba colours[3] = {
+                { 0,   0,   255, 80 },
+                { 0,   255, 0,   80 },
+                { 255, 0,   0, 40 }
+        };
+        double tailFactor = 0;
+        led_map *data = Vulcan121::createEmptyLEDMap();
     };
 }
 

headers/VulcanoLE/Scripts/RainbowLine.h

@@ -10,7 +10,7 @@ namespace VIZ {
         rgba *colours = nullptr;
         double lastValue = 0;
         double decayValue = 0;
-        double ratios[4] = {1.3,1.2,1.3,1.4};
+        double ratios[4] = {1.3,1.3,1.3,1.2};
         double tailFactor = 0.3;
     public:
         RainbowLine(AudioGrabber *pGrabber, Vulcan121 *vulcan);
@@ -18,7 +18,6 @@ namespace VIZ {
         void onSetup() override;
         void onTick(float delta) override;
         void calcNextDelta(double ratio);
-        void updateMap(double factor);
         const char *name() override;
         std::string m_name = "Rainbow Line";
         led_map *data = Vulcan121::createEmptyLEDMap();

layout.md

@@ -356,7 +356,7 @@ Key Count With LEDs: 105
 | 18    | 3   |
 | 19    | E   |
 | 20    | D   |
-| 27    | C   |
+| 21    | X   |
 
 
 ### COL 4
@@ -367,7 +367,7 @@ Key Count With LEDs: 105
 | 24    | 4   |
 | 25    | R   |
 | 26    | F   |
-| 32    | V   |
+| 27    | C   |
 
 
 ### COL 5
@@ -379,6 +379,7 @@ Key Count With LEDs: 105
 | 30    | T     |
 | 31    | G     |
 | 36    | B     |
+| 32    | V     |
 | 37    | SPACE |
 
 

src/VulcanoLE/Audio/AudioGrabber.cpp

@@ -134,45 +134,49 @@ void AudioGrabber::init() {
     if (env != nullptr)
         m_scale = env->getAsDouble("audio_scale", 1.0);
     DBG("SET Audio Scale: %.3f", m_scale)
-    loudness = 0.0;
+    loudness = { 0.0, 0.0 };
 }
 
 void AudioGrabber::calculateRMS(stereoSample *pFrame) {
-    float square = 0, mean;
+    float squareL = 0, meanL;
+    float squareR = 0, meanR;
     for (int i = 0; i < BUFFER_SIZE; i++) {
-        float left = pFrame[0].l;
+        squareL += std::pow(pFrame[0].l, 2);
-        square += std::pow(left, 2);
+        squareR += std::pow(pFrame[0].r, 2);
     }
-    mean = (square / (float) (BUFFER_SIZE));
+    meanL = (squareL / (float) (BUFFER_SIZE));
-    loudness = std::sqrt(mean);
+    meanR = (squareR / (float) (BUFFER_SIZE));
+    loudness = { std::sqrt(meanL), std::sqrt(meanR) };
 }
 
 void AudioGrabber::calculatePEAK(stereoSample *pFrame) {
-    float max = 0;
+    stereoSampleFrame max = { 0, 0 };
     for (int i = 0; i < BUFFER_SIZE; i++) {
         float left = std::abs(pFrame[0].l);
-        if (left > max) {
+        float right = std::abs(pFrame[0].r);
-            max = left;
+        if (left > max.l)
-        }
+            max.l = left;
+        if (right > max.r)
+            max.r = right;
     }
     loudness = max;
 }
 
-float AudioGrabber::getLoudness() {
+stereoSampleFrame AudioGrabber::getLoudness() {
     std::unique_lock<std::mutex> lck(m_mtx);
-    return (float) loudness;
+    return loudness;
 }
 
 bool AudioGrabber::work() {
     std::unique_lock<std::mutex> lck(m_mtx);
     if (this->read(m_buffer, BUFFER_SIZE)) {
+        switch (requestMode) {
+            case ReqMode::FFT:
+                // FFT get's better results with maybe a bit scaling.. for RMS and PEAK this gets "worse"
                 for (int i = 0; i < BUFFER_SIZE; ++i) {
-            // my system is fucking quite
                     m_buffer[i].l *= m_scale;
                     m_buffer[i].r *= m_scale;
                 }
-        switch (requestMode) {
-            case ReqMode::FFT:
                 fft.process(m_buffer);
                 break;
             case ReqMode::RMS:

src/VulcanoLE/Keyboards/Vulcan121.cpp

@@ -274,8 +274,8 @@ void Vulcan121::setupMap() {
                                        79, 87, 100, 104, 109, 113, 119, 124, 129 };
     keyMapRow[2]->count = 19;
     keyMapRow[2]->index = new int[19]{ 2, 7, 13, 19, 25, 30, 34, 50, 55, 61, 67, 73, 80, 101, 105, 110, 114, 120, 125 };
-    keyMapRow[3]->count = 17;
+    keyMapRow[3]->count = 18;
-    keyMapRow[3]->index = new int[17]{ 3, 8, 14, 20, 26, 31, 35, 51, 56, 62, 68, 74, 88, 115, 121, 126, 130 };
+    keyMapRow[3]->index = new int[18]{ 3, 8, 14, 20, 26, 31, 35, 51, 56, 62, 68, 74, 96, 88, 115, 121, 126, 130 };
     keyMapRow[4]->count = 17;
     keyMapRow[4]->index = new int[17]{ 4, 9, 15, 21, 27, 32, 36, 52, 57, 63, 69, 75, 82, 106, 116, 122, 127 };
     keyMapRow[5]->count = 14;
@@ -288,11 +288,11 @@ void Vulcan121::setupMap() {
     keyMapCol[2]->count = 6;
     keyMapCol[2]->index = new int[6]{ 11, 12, 13, 14, 15, 16 };
     keyMapCol[3]->count = 5;
-    keyMapCol[3]->index = new int[5]{ 17, 18, 19, 20, 27 };
+    keyMapCol[3]->index = new int[5]{ 17, 18, 19, 20, 21 };
     keyMapCol[4]->count = 5;
-    keyMapCol[4]->index = new int[5]{ 23, 24, 25, 26, 32 };
+    keyMapCol[4]->index = new int[5]{ 23, 24, 25, 26, 27 };
-    keyMapCol[5]->count = 6;
+    keyMapCol[5]->count = 7;
-    keyMapCol[5]->index = new int[6]{ 28, 29, 30, 31, 36, 37 };
+    keyMapCol[5]->index = new int[7]{ 28, 29, 30, 31, 36, 32, 37 };
     keyMapCol[6]->count = 5;
     keyMapCol[6]->index = new int[5]{ 48, 33, 34, 35, 52 };
     keyMapCol[7]->count = 5;
@@ -335,3 +335,9 @@ const keys * Vulcan121::getColumn(int col) {
 const keys *Vulcan121::getRow(int row) {
     return keyMapRow[row];
 }
+
+void Vulcan121::fadeOutMap(led_map *map, double factor = 0.3) {
+    for (auto &i : map->key) {
+        i.a *= factor;
+    }
+}

src/VulcanoLE/Scripts/Loudness.cpp

@@ -10,25 +10,41 @@ namespace VIZ {
     }
 
     void Loudness::onTick(float delta) {
-        auto data = Vulcan121::createEmptyLEDMap();
+        Vulcan121::fadeOutMap(data, tailFactor);
-        float val = grabber->getLoudness();
+        stereoSample val = grabber->getLoudness();
-        val = val > 1.0f ? 1.0f : val;
+        val.l = val.l > 1.0f ? 1.0f : val.l;
-        double newVal = (val + lastVal) * 0.5;
+        val.r = val.r > 1.0f ? 1.0f : val.r;
-        int maxCol = newVal * keyboardData.num_cols;
+        setForChannel(val.l, 0);
-        for (int col = 0; col < maxCol; ++col) {
+        setForChannel(val.r, 1);
-            auto column = keyboard->getColumn(col);
+        keyboard->sendLedMap(data, false);
-            for (int i = 0; i < column->count; ++i) {
-                auto index = column->index[i];
-                if (col >= maxCol - 1) data[ 0 ].key[ index ] = { 255, 0, 0, 100 };
-                else data[ 0 ].key[ index ] = { 0, 0, 255, 80 };
-            }
-        }
-        // delete map! ;)
-        lastVal = val;
-        keyboard->sendLedMap(data, true);
     }
 
     const char *Loudness::name() {
         return m_name.c_str();
     }
+
+    void Loudness::setForChannel(float value, int channel) {
+        // because we have stereo we need to move on the rows
+        int offset = channel == 0 ? 1 : 3;
+        int until = channel == 0 ? 3 : 5;
+        colours[channel].a = value * 128.0;
+        for (int i = offset; i < until; ++i) {
+            auto row = keyboard->getRow(i);
+            int to = row->count * value;
+            for (int j = 0; j < to; ++j) {
+                auto index = row->index[j];
+                data[0].key[index] = colours[channel];
+            }
+        }
+        drawFrame(0);
+        drawFrame(5);
+    }
+
+    void Loudness::drawFrame(int toRow) {
+        auto row = keyboard->getRow(toRow);
+        for (int j = 0; j < row->count; ++j) {
+            auto index = row->index[j];
+            data[0].key[index] = colours[2];
+        }
+    }
 }

src/VulcanoLE/Scripts/RainbowLine.cpp

@@ -4,7 +4,7 @@
 #include <VUtils/Math.h>
 
 #define MAX_DELTA 1212000
-#define MAX_PEAK 180
+#define MAX_PEAK 170
 
 namespace VIZ {
     RainbowLine::RainbowLine(AudioGrabber *pGrabber, Vulcan121 *vulcan) : VIZ(pGrabber, vulcan) {
@@ -20,7 +20,7 @@ namespace VIZ {
     }
     void RainbowLine::onSetup() {
         currentColumn = 0;
-        updateMap(0);
+        Vulcan121::fadeOutMap(data, 0);
         tailFactor = VUtils::Math::clamp(grabber->env->getAsDouble("rainbow_tail_factor", 0.3), 0.0, 0.9);
         keyboard->sendToLEDs({ 0, 0, 0, 0 });
         grabber->requestMode = AudioGrabber::ReqMode::FFT;
@@ -28,7 +28,7 @@ namespace VIZ {
     }
 
     void RainbowLine::onTick(float delta) {
-        updateMap(tailFactor);
+        Vulcan121::fadeOutMap(data, tailFactor);
         deltaElapsed += delta;
         auto fftData = grabber->fft.getData()->leftChannel;
         auto val = 0.0;
@@ -85,10 +85,4 @@ namespace VIZ {
         rRatio = (VUtils::Math::easeIn(rRatio) - 1.0) * -1;
         deltaNeeded = rRatio * MAX_DELTA;
     }
-
-    void RainbowLine::updateMap(double factor) {
-        for (int i = 0; i < keyboardData.num_keys; ++i) {
-            data->key[i].a *= factor;
-        }
-    }
 }