Show raw values in navigator when demosaic 'none' is used

rtengine/imagesource.h

@@ -160,6 +160,7 @@ public:
     {
         return this;
     }
+    virtual void getRawValues(int x, int y, int &R, int &G, int &B) = 0;
 };
 }
 #endif

rtengine/rawimagesource.cc

@@ -5460,6 +5460,21 @@ void RawImageSource::init ()
     }
 }
 
+void RawImageSource::getRawValues(int x, int y, int &R, int &G, int &B)
+{
+    int xnew = x + border;
+    int ynew = y + border;
+    int c = FC(ynew,xnew);
+    int val = rawData[ynew][xnew] / scale_mul[c];
+    if(c == 0) {
+        R = val; G = 0; B = 0;
+    } else if(c == 2) {
+        R = 0; G = 0; B = val;
+    } else {
+        R = 0; G = val; B = 0;
+    }
+}
+
 void RawImageSource::cleanup ()
 {
     delete phaseOneIccCurve;

rtengine/rawimagesource.h

@@ -264,6 +264,7 @@ protected:
     void pixelshift(int winx, int winy, int winw, int winh, const RAWParams::BayerSensor &bayerParams, unsigned int frame, const std::string &model, float rawWpCorrection);
     void    hflip       (Imagefloat* im);
     void    vflip       (Imagefloat* im);
+    void getRawValues(int x, int y, int &R, int &G, int &B);
 
 };
 }

rtengine/stdimagesource.h

@@ -97,6 +97,9 @@ public:
     }
     void setCurrentFrame(unsigned int frameNum) {}
 
+    void getRawValues(int x, int y, int &R, int &G, int &B) { R = G = B = 0;}
+
+
 };
 }
 #endif