New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/shaders/GL/route_marker.fsh.glsl

@@ -0,0 +1,31 @@
+// Warning! Beware to use this shader. "discard" command may significally reduce performance.
+// Unfortunately some CG algorithms cannot be implemented on OpenGL ES 2.0 without discarding
+// fragments from depth buffer.
+
+#ifdef SAMSUNG_GOOGLE_NEXUS
+uniform sampler2D u_colorTex;
+#endif
+
+uniform vec4 u_routeParams;
+uniform vec4 u_maskColor;
+uniform float u_opacity;
+
+varying vec4 v_radius;
+varying vec4 v_color;
+
+const float kAntialiasingPixelsCount = 2.5;
+
+void main()
+{
+  vec4 finalColor = v_color;
+  
+  float aaRadius = max(v_radius.z - kAntialiasingPixelsCount, 0.0);
+  float stepValue = smoothstep(aaRadius * aaRadius, v_radius.z * v_radius.z,
+                               dot(v_radius.xy, v_radius.xy));
+  finalColor.a = finalColor.a * u_opacity * (1.0 - stepValue);
+  if (finalColor.a < 0.01 || u_routeParams.y > v_radius.w)
+    discard;
+
+  finalColor = vec4(mix(finalColor.rgb, u_maskColor.rgb, u_maskColor.a), finalColor.a);
+  gl_FragColor = samsungGoogleNexusWorkaround(finalColor);
+}