2.2.2 - fixed washed out colors

README.md

@@ -31,6 +31,6 @@ Capture Card
 ## Download
 Download the latest release from here: https://github.com/Egoistically/chiaki/releases/latest.
 
-If you want to patch it yourself, [here's the the code changed](https://github.com/Egoistically/chiaki/commit/aedb17bf445c11ac7e563f461143cba3916260f3#diff-60660f571de143f23e1f2575ee8f83df4c6a4d0712720ed41d07ad404a8f67bb) (taken from here: https://stackoverflow.com/a/13097718).
+If you want to patch it yourself, [here's the the code changed](https://github.com/Egoistically/chiaki/blob/master/gui/src/avopenglwidget.cpp#L32) (adapted from here: https://stackoverflow.com/q/55930123).
 
 Because AppVeyor updates their images every so often, some changes might need to be made in the future.

gui/src/avopenglwidget.cpp

@@ -39,14 +39,23 @@ uniform sampler2D plane3; // V
 in vec2 uv_var;
 out vec4 out_color;
 
-void main()
-{
-	highp float y = texture2D(plane1, uv_var).r;
-	highp float u = texture2D(plane2, uv_var).r - 0.5;
-	highp float v = texture2D(plane3, uv_var).r - 0.5;
-	highp float r = y +             1.402 * v;
-	highp float g = y - 0.344 * u - 0.714 * v;
-	highp float b = y + 1.772 * u;
+const float yScale = 255.0 / (235.0 - 16.0);
+const float uvScale = 255.0 / (240.0 - 16.0);
+
+void main() {
+    float y = texture2D(plane1, uv_var).r;
+    float u = texture2D(plane2, uv_var).r - 0.5;
+    float v = texture2D(plane3, uv_var).r - 0.5;
+
+    y = y - 16.0/255.0;
+
+    float r = y*yScale +                          v*uvScale*1.5748;
+    float g = y*yScale - u*uvScale*1.8556*0.101 - v*uvScale*1.5748*0.2973;
+    float b = y*yScale + u*uvScale*1.8556;
+
+    r = clamp(r, 0.0, 1.0);
+    g = clamp(g, 0.0, 1.0);
+    b = clamp(b, 0.0, 1.0);
 
 	out_color = vec4(r,g,b,1.0);
 }