Moved ambient lights out of SkLight's light array

samplecode/SampleShadowing.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleCode.h"
 #include "SkPictureRecorder.h"
 #include "SkShadowPaintFilterCanvas.h"
 #include "SkShadowShader.h"
 #include "SkSurface.h"
 
 #ifdef SK_EXPERIMENTAL_SHADOWING
 
 class ShadowingView : public SampleView {
 public:
     ShadowingView() {
 
         this->setBGColor(0xFFCCCCCC);
         SkLights::Builder builder;
         builder.add(SkLights::Light::MakeDirectional(SkColor3f::Make(0.2f, 0.3f, 0.4f),
                                                      SkVector3::Make(0.2f, 0.05f, 1.0f)));
         builder.add(SkLights::Light::MakeDirectional(SkColor3f::Make(0.4f, 0.3f, 0.2f),
                                                      SkVector3::Make(0.05f, 0.2f, 1.0f)));
-        builder.add(SkLights::Light::MakeAmbient(SkColor3f::Make(0.4f, 0.4f, 0.4f)));
+        builder.setAmbientLightColor(SkColor3f::Make(0.4f, 0.4f, 0.4f));
         fLights = builder.finish();
 
         fTestRects[0].fColor = 0xFFEE8888;
         fTestRects[0].fDepth = 80;
         fTestRects[0].fGeometry = SkRect::MakeLTRB(200,150,350,300);
 
         fTestRects[1].fColor = 0xFF88EE88;
         fTestRects[1].fDepth = 160;
         fTestRects[1].fGeometry = SkRect::MakeLTRB(150,200,300,350);
 
@@ skipping 159 matching lines @@
                 builder.add(SkLights::Light::MakeDirectional(
                         SkColor3f::Make(0.2f, 0.3f, 0.4f),
                         SkVector3::Make(0.2f + (200.0f - x) * recipX,
                                         0.05f + (200.0f - y) * recipY,
                                         1.0f)));
                 builder.add(SkLights::Light::MakeDirectional(
                         SkColor3f::Make(0.4f, 0.3f, 0.2f),
                         SkVector3::Make(0.05f + (200.0f - x) * recipX,
                                         0.2f + (200.0f - y) * recipY,
                                         1.0f)));
-                builder.add(SkLights::Light::MakeAmbient(
-                        SkColor3f::Make(0.4f, 0.4f, 0.4f)));
+                builder.setAmbientLightColor(SkColor3f::Make(0.4f, 0.4f, 0.4f));
                 fLights = builder.finish();
 
                 fLightsChanged = true;
                 this->inval(nullptr);
             }
             return true;
         }
 
         if (click->fState == Click::State::kUp_State) {
             fSelectedRect = -1;
@@ skipping 79 matching lines @@
     sk_sp<SkLights> fLights;
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 static SkView* MyFactory() { return new ShadowingView; }
 static SkViewRegister reg(MyFactory);
 
 #endif