Gamma ramp tweaks

app/Display/DisplayGammaRamp.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using System.Reflection.Metadata.Ecma335;
 using System.Runtime.InteropServices;
 
 namespace GHelper.Display
@@ -29,7 +30,7 @@ namespace GHelper.Display
             Blue = blue;
         }
 
-        public DisplayGammaRamp(double brightness = 0.5, double contrast = 0.5, double gamma = 1)
+        public DisplayGammaRamp(double brightness = 1, double contrast = 1, double gamma = 1)
             : this(
                 CalculateLUT(brightness, contrast, gamma),
                 CalculateLUT(brightness, contrast, gamma),
@@ -38,28 +39,60 @@ namespace GHelper.Display
         {
         }
 
+        public DisplayGammaRamp(
+            double redBrightness,
+            double redContrast,
+            double redGamma,
+            double greenBrightness,
+            double greenContrast,
+            double greenGamma,
+            double blueBrightness,
+            double blueContrast,
+            double blueGamma
+        )
+            : this(
+                CalculateLUT(redBrightness, redContrast, redGamma),
+                CalculateLUT(greenBrightness, greenContrast, greenGamma),
+                CalculateLUT(blueBrightness, blueContrast, blueGamma)
+            )
+        {
+        }
 
+        internal DisplayGammaRamp(GammaRamp ramp) :
+            this(ramp.Red, ramp.Green, ramp.Blue)
+        {
+        }
         public ushort[] Blue { get; }
         public ushort[] Green { get; }
         public ushort[] Red { get; }
         private static ushort[] CalculateLUT(double brightness, double contrast, double gamma)
         {
-
-            // Fill the gamma curve
             var result = new ushort[GammaRamp.DataPoints];
-            string bits = "";
-
             for (var i = 0; i < result.Length; i++)
             {
                 result[i] = (ushort)((0.5 + brightness / 2) * ushort.MaxValue * i / (float)(result.Length - 1));
-                bits += result[i].ToString() + " ";
             }
-
-            //Debug.WriteLine(bits);
-
             return result;
         }
 
+        private static ushort[] Brightness(ushort[] data, double brightness)
+        {
+            var result = new ushort[GammaRamp.DataPoints];
+            for (var i = 0; i < result.Length; i++)
+            {
+                result[i] = (ushort)(data[i]*brightness);
+            }
+            return result;
+        }
+
+        internal GammaRamp AsBrightnessRamp(double brightness)
+        {
+            return new GammaRamp(
+                Brightness(Red, brightness),
+                Brightness(Green, brightness),
+                Brightness(Blue, brightness)
+            );
+        }
 
         internal GammaRamp AsRamp()
         {