single file reading and cuelist reading WIP

README.md

@@ -13,9 +13,8 @@
 ## SD Card contents
 
 
-´´´
+```
 config.txt
-click.wav
 sound/
   ├─ 1.wav
   ├─ 2.wav
@@ -25,8 +24,11 @@ sound/
   ├─ 6.wav
   ├─ 7.wav
   ├─ 8.wav
+ui/
+  ├─ click.wav
+  ├─ beep.wav
 
-´´´
+```
 
 ### config.txt
 
@@ -34,45 +36,89 @@ Json formatted config file. For now only edge led color working.
 
 ```
 {
+    "boxid":"",
     "edge": {
         "color":{
-            "r":50,
-            "g":0,
-            "b":0
+            "idle":{
+                "r":50,
+                "g":0,
+                "b":50
+            },
+            "active":{
+                "r":0,
+                "g":50,
+                "b":50
+            }
+        }
+    },
+    "ring": {
+        "color":{
+            "idle":{
+                "r":0,
+                "g":50,
+                "b":50
+            },
+            "active":{
+                "r":0,
+                "g":80,
+                "b":50
+            }
         }
     }
 }
 ```
 
-### click.wav
+## Sound
 
-Put a file called `click.wav` (not longer than a few seconds) in the root of the SD card and it will play when you press a button.
+### UI
+
+There are two UI sounds - `click.wav` and `beep.wav`.
+
+- `click.wav` is played when a button is pressed other than the select button
+- `beep.wav` is played when the rotary encoder select button is pressed
+
+Put these files in the subfolder `ui` on the SD card.
+
+#### Wave File Format for UI Sounds
+
+`click.wav` needs to be **22050Hz (22kHz) 16bit Mono**
 
 
-### Sounds
+### Audio Out or Speakers
 
-Put all sounds into the ´/sound´ subfolder. Name them ´1.wav, 2.wav, 3.wav...´
+Put all sounds into the `/sound` subfolder. Name them `1.wav, 2.wav, 3.wav...`
 
 
-## Wave File Format
+#### Wave File Format for Audio Out and Speakers
+
+Export all sounds as **48000Hz (48kHz) 16bit Stereo**.
 
-Export all sounds except ´click.wav´ as **48000Hz (48kHz) 16bit Stereo**.
 
 ### Audacity
 
 You can use Audacity to export all soundfiles to WAV format.
 
+Download it here [Github](https://github.com/audacity/audacity/releases)
+
 1. Load file into Audacity
 2. Select Track
 3. File -> Export Audio
 
 #### Format options in Audacity
 
+**Audio Out**
+
 - WAV(Microsoft)
 - Chanels: Stereo
 - Samplerate: 48000Hz
 - Encoding: Signed 16-bit PCM
 
+**UI**
+
+- WAV(Microsoft)
+- Channels: Mono
+- Samplerate: 22050Hz
+- Encoding: Signed 16-bit PCM
 
 ----
 

soundcube-firmware/ringbuffer.h

@@ -1,6 +1,5 @@
 #pragma once
 
-template<typename T>
 class RingBuffer{
   public:
     RingBuffer() {}
@@ -11,10 +10,10 @@ class RingBuffer{
     }
 
     void begin(){
-      buffer = new T[bufferSize];
+      buffer = new int16_t[bufferSize];
     }
 
-    bool push(T data){
+    bool push(int16_t data){
       if(counter < bufferSize){
         buffer[write] = data;
         write++; // % bufferSize;
@@ -25,8 +24,8 @@ class RingBuffer{
       return false;
     }
     
-    T pop(){
-      T retval = 0;
+    int16_t pop(){
+      int16_t retval = 0;
       if(counter > 0) {
         counter--;
         retval = buffer[read];
@@ -36,22 +35,72 @@ class RingBuffer{
       return retval;
     }
 
+    int16_t* getReadPointer(){
+      return &buffer[read];
+    }
+
+    void pointerPop(int nbytes){
+      for(int i=0; i<nbytes / 2; ++i){
+        if(counter > 0) {
+          counter--;
+          read++;// % bufferSize;
+          if(read == bufferSize) read = 0;
+        }
+      }
+    }
+	
+    void pushDMA(int32_t *source){
+      if(counter < bufferSize){
+        rp2040.memcpyDMA(&buffer[write], source, 4);
+        write += 2; // % bufferSize;
+        if(write == bufferSize) write = 0;
+        counter += 2;
+      } 
+    }
+
+    void* getWritePointer(){
+      return &buffer[write];
+    }
+	
+		void advance(int nbytes){
+			for(int i = 0; i < nbytes/2; ++i){
+				if(counter < (bufferSize-1)){
+					write++; // % bufferSize;
+					if(write == bufferSize) write = 0;
+					counter++;
+				} 
+			}
+		}
+
+    void popDMA(int32_t *target){
+      if(counter > 1) {
+        counter -= 2;
+        rp2040.memcpyDMA(target, &buffer[read], 4);
+        read += 2;
+        if(read >= bufferSize) read = 0;
+      }
+    }
+
     bool isEmpty(){
       return counter == 0;
     }
 
     bool isFull(){
-      return counter == bufferSize;
+      return counter == (bufferSize-2);
     }
 
     int size(){
       return counter;
     }
 
+    int remains(){
+      return (bufferSize-2) - counter;
+    }
+
   private:
     size_t bufferSize = 0;
     int counter = 0;
     int write = 0;
     int read = 0;
-    T *buffer;
+    int16_t *buffer;
 };

soundcube-firmware/wavestream.h

@@ -74,16 +74,53 @@ struct WaveFile{
     return true;
   }
   
-  void readblock(){
+  bool readblock(){
     uint8_t samplebyte[blockalign];
 
     file.read(samplebyte, blockalign);
+
     if(!file.available() && loop) file.seek(44, SeekSet);
+    if(!file.available() && !loop) {
+      file.seek(44, SeekSet);
+      return false;
+    }
     
     for(int i = 0; i < blockalign; i+=2){
       int16_t sample = (samplebyte[i+1] << 8) + samplebyte[i];
       buffer.push(sample);
     }
+    return true;
+  }
+
+  bool readblockDMA(){
+    void *bufferStart = buffer.getWritePointer();
+
+    file.read((uint8_t*)bufferStart, 4);
+	  buffer.advance(4);
+
+    if(!file.available() && loop) file.seek(44, SeekSet);
+    if(!file.available() && !loop) {
+      file.seek(44, SeekSet);
+      return false;
+    }    
+    return true;
+  }
+
+  bool readblockSD(){
+    void *bufferStart = buffer.getWritePointer();
+    remains = buffer.remains();
+
+    if(remains > 512){
+      adv = file.readBytes((char*)bufferStart, 512);
+      buffer.advance(adv);
+
+      if(!file.available() && loop) file.seek(44, SeekSet);
+      if(!file.available() && !loop) {
+        file.seek(44, SeekSet);
+        return false;
+      }    
+    }
+    return true;
   }
 
   int16_t get(){
@@ -94,6 +131,10 @@ struct WaveFile{
     file.seek(44, SeekSet);
   }
 
+  void reset(){
+    file.seek(44, SeekSet);
+  }
+
   bool loop = false;
   uint16_t format = 0;
   uint32_t length = 0;  
@@ -102,7 +143,10 @@ struct WaveFile{
   uint16_t blockalign = 0;
   uint16_t bitspersample = 0;
 
-  RingBuffer<int16_t> buffer;
+  int adv = 0;
+  int remains = 0;
+
+  RingBuffer buffer;
 };
 
 class WaveStream{
@@ -110,7 +154,7 @@ class WaveStream{
     WaveStream(){}
 
     void begin(){
-      wavefile.buffer.setSize(24000);
+      wavefile.buffer.setSize(2048);
       wavefile.buffer.begin();
     }
 
@@ -121,7 +165,10 @@ class WaveStream{
 
     void toggle(){playing = !playing;}
 
-    void play(){playing = true;}
+    void play(bool reset = false){
+      if(reset) wavefile.reset();
+      playing = true;
+    }
 
     void stop(){
       playing = false;
@@ -131,12 +178,18 @@ class WaveStream{
     void pause(){playing = false;}
 
     void stream(){
-      if(!wavefile.buffer.isFull() && playing){
-        int cnt = 0;
-        while (!wavefile.buffer.isFull() && cnt < 6000) {
-          wavefile.readblock();
-          cnt++;
-        }
+      int cnt = 0;
+      while (!wavefile.buffer.isFull() && cnt < 1024) {
+        bool ok = wavefile.readblockDMA();
+        if(!ok) playing = false;
+        cnt += 2;
+      }
+    }
+
+    void streamChunk(){
+      if(!wavefile.buffer.isFull()){
+        bool ok = wavefile.readblockSD();
+        if(!ok) playing = false;
       }
     }
 
@@ -144,6 +197,16 @@ class WaveStream{
       return playing ? wavefile.get() : 0;
     }
 
+    int16_t* getPointer(){
+      int16_t* p = wavefile.buffer.getReadPointer();
+      wavefile.buffer.pointerPop(2);
+      return p;
+    }
+
+    void getDMA(int32_t *samples){
+      if(playing) wavefile.buffer.popDMA(samples);
+    }
+
     bool isPlaying(){
       return playing;
     }
@@ -151,6 +214,7 @@ class WaveStream{
   //private:
 
     WaveFile wavefile;
+	uint32_t cuelist[16];
 
     bool playing = false;