Add mix control

dynamite.ttl

@@ -52,8 +52,17 @@
             a lv2:InputPort , lv2:ControlPort ;
             lv2:index 4 ;
             lv2:symbol "gain" ;
-            lv2:name "Gain" ;
+            lv2:name "Level" ;
             lv2:default 0.0 ;
             lv2:minimum -20.0 ;
             lv2:maximum 20.0 ;
+        ] ,
+        [
+            a lv2:InputPort , lv2:ControlPort ;
+            lv2:index 5 ;
+            lv2:symbol "mix" ;
+            lv2:name "Mix" ;
+            lv2:default 0.5 ;
+            lv2:minimum 0.0 ;
+            lv2:maximum 1.0 ;
         ] .

plugin.cc

@@ -18,6 +18,8 @@ namespace Dynamite {
                 break;
             case GAIN:
                 gain = (const float *)data;
+            case MIX:
+                mix = (const float *)data;
         }
     }
 
@@ -27,13 +29,17 @@ namespace Dynamite {
         const float gainCoeff = dbCo(*gain);
 
         for(uint32_t pos = 0; pos < n_samples; pos++) {
-            output[pos] = input[pos] * coeff;
-            if(output[pos] > threshCoeff) {
-                output[pos] = threshCoeff;
-            } else if (output[pos] < -threshCoeff) {
-                output[pos] = -threshCoeff;
+            float dist = input[pos] * coeff;
+
+            if(dist > threshCoeff) {
+                dist = threshCoeff;
+            } else if (dist < -threshCoeff) {
+                dist = -threshCoeff;
             }
-            output[pos] = output[pos] * gainCoeff;
+
+            dist = dist * gainCoeff;
+
+            output[pos] = (*mix * dist) + ((1.0 - *mix) * input[pos]);
         }
     }
 }

plugin.hh

@@ -6,13 +6,14 @@ using namespace LV2;
 
 namespace Dynamite {
     enum PluginPort {
-        IN, OUT, DRIVE, THRESHOLD, GAIN
+        IN, OUT, DRIVE, THRESHOLD, GAIN, MIX
     };
 
     class Drive : public Plugin<Drive> {
         const float *drive;
         const float *threshold;
         const float *gain;
+        const float *mix;
         const float *input;
         float *output;
     public: