utils - add nomalized scaling functions / move into namespace Heck

src/utils.cc

@@ -2,77 +2,95 @@
 
 using namespace daisy;
 
-void GetMidiTypeAsString(MidiEvent& msg, char* str)
-{
-    switch (msg.type) {
-        case NoteOff:
-            strcpy(str, "NoteOff");
-            break;
-        case NoteOn:
-            strcpy(str, "NoteOn");
-            break;
-        case PolyphonicKeyPressure:
-            strcpy(str, "PolyKeyPres.");
-            break;
-        case ControlChange:
-            strcpy(str, "CC");
-            break;
-        case ProgramChange:
-            strcpy(str, "Prog. Change");
-            break;
-        case ChannelPressure:
-            strcpy(str, "Chn. Pressure");
-            break;
-        case PitchBend:
-            strcpy(str, "PitchBend");
-            break;
-        case SystemCommon:
-            strcpy(str, "Sys. Common");
-            break;
-        case SystemRealTime:
-            strcpy(str, "Sys. Realtime");
-            break;
-        case ChannelMode:
-            strcpy(str, "Chn. Mode");
-            break;
-        default:
-            strcpy(str, "Unknown");
-            break;
+namespace Heck {
+
+    void GetMidiTypeAsString(MidiEvent& msg, char* str)
+    {
+        switch (msg.type) {
+            case NoteOff:
+                strcpy(str, "NoteOff");
+                break;
+            case NoteOn:
+                strcpy(str, "NoteOn");
+                break;
+            case PolyphonicKeyPressure:
+                strcpy(str, "PolyKeyPres.");
+                break;
+            case ControlChange:
+                strcpy(str, "CC");
+                break;
+            case ProgramChange:
+                strcpy(str, "Prog. Change");
+                break;
+            case ChannelPressure:
+                strcpy(str, "Chn. Pressure");
+                break;
+            case PitchBend:
+                strcpy(str, "PitchBend");
+                break;
+            case SystemCommon:
+                strcpy(str, "Sys. Common");
+                break;
+            case SystemRealTime:
+                strcpy(str, "Sys. Realtime");
+                break;
+            case ChannelMode:
+                strcpy(str, "Chn. Mode");
+                break;
+            default:
+                strcpy(str, "Unknown");
+                break;
+        }
+    }
+
+    void GetMidiRTTypeAsString(MidiEvent& msg, char* str)
+    {
+        switch (msg.srt_type) {
+            case TimingClock:
+                strcpy(str, "TimingClock");
+                break;
+            case SRTUndefined0:
+                strcpy(str, "SRTUndefined0");
+                break;
+            case Start:
+                strcpy(str, "Start");
+                break;
+            case Continue:
+                strcpy(str, "Continue");
+                break;
+            case Stop:
+                strcpy(str, "Stop");
+                break;
+            case SRTUndefined1:
+                strcpy(str, "SRTUndefined1");
+                break;
+            case ActiveSensing:
+                strcpy(str, "ActiveSensing");
+                break;
+            case Reset:
+                strcpy(str, "Reset");
+                break;
+            case SystemRealTimeLast:
+                strcpy(str, "SystemRealTimeLast");
+                break;
+            default:
+                strcpy(str, "Unknown");
+                break;
+        }
+    }
+
+
+    float scalen_min_max(float val, float min, float max)
+    {
+        float range = max - min;
+        float ret = min + (val * range);
+        return ret;
     }
-}
 
-void GetMidiRTTypeAsString(MidiEvent& msg, char* str)
-{
-    switch (msg.srt_type) {
-        case TimingClock:
-            strcpy(str, "TimingClock");
-            break;
-        case SRTUndefined0:
-            strcpy(str, "SRTUndefined0");
-            break;
-        case Start:
-            strcpy(str, "Start");
-            break;
-        case Continue:
-            strcpy(str, "Continue");
-            break;
-        case Stop:
-            strcpy(str, "Stop");
-            break;
-        case SRTUndefined1:
-            strcpy(str, "SRTUndefined1");
-            break;
-        case ActiveSensing:
-            strcpy(str, "ActiveSensing");
-            break;
-        case Reset:
-            strcpy(str, "Reset");
-            break;
-        case SystemRealTimeLast:
-            strcpy(str, "SystemRealTimeLast");
-            break;
-        default:
-            strcpy(str, "Unknown");
-            break;
+    float scalen_center_range(float val, float center, float range)
+    {
+        float min = center - (range / 2);
+        float ret = min + (val * range);
+        return ret;
     }
-}
+} // namespace Heck

src/utils.hh

@@ -4,8 +4,12 @@
 #include "daisy_seed.h"
 #include "globals.hh"
 
-void GetMidiTypeAsString(daisy::MidiEvent& msg, char* str);
-void GetMidiRTTypeAsString(daisy::MidiEvent& msg, char* str);
+namespace Heck {
+    void GetMidiTypeAsString(daisy::MidiEvent& msg, char* str);
+    void GetMidiRTTypeAsString(daisy::MidiEvent& msg, char* str);
 
+    float scalen_min_max(float val, float min, float max);
+    float scalen_center_range(float val, float center, float range);
+} // namespace Heck
 
 #endif // HECK_DAISY_UTILS_HH