Added PointLights to SkLights::Light

src/core/SkShadowShader.cpp

Index: src/core/SkShadowShader.cpp
diff --git a/src/core/SkShadowShader.cpp b/src/core/SkShadowShader.cpp
index 5fc992acc14dd790ab86e43e6a761ecc7b7db8bc..804258321a80f9ab0bd20b7ffa995878ab079b17 100644
--- a/src/core/SkShadowShader.cpp
+++ b/src/core/SkShadowShader.cpp
@@ -592,39 +592,7 @@ sk_sp<SkFlattenable> SkShadowShaderImpl::CreateProc(SkReadBuffer& buf) {
     bool hasLocalMatrix = buf.readBool();
     SkAssertResult(!hasLocalMatrix);
 
-    int numLights = buf.readInt();
-
-    SkLights::Builder builder;
-
-    for (int l = 0; l < numLights; ++l) {
-        bool isAmbient = buf.readBool();
-
-        SkColor3f color;
-        if (!buf.readScalarArray(&color.fX, 3)) {
-            return nullptr;
-        }
-
-        if (isAmbient) {
-            builder.add(SkLights::Light(color));
-        } else {
-            SkVector3 dir;
-            if (!buf.readScalarArray(&dir.fX, 3)) {
-                return nullptr;
-            }
-
-            sk_sp<SkImage> depthMap;
-            if (!(depthMap = sk_ref_sp<SkImage>(buf.readImage()))) {
-                return nullptr;
-            }
-
-            SkLights::Light light = SkLights::Light(color, dir);
-            light.setShadowMap(depthMap);
-
-            builder.add(light);
-        }
-    }
-
-    sk_sp<SkLights> lights(builder.finish());
+    sk_sp<SkLights> lights = SkLights::MakeFromBuffer(buf);
 
     int diffuseWidth = buf.readInt();
     int diffuseHeight = buf.readInt();
@@ -641,21 +609,7 @@ sk_sp<SkFlattenable> SkShadowShaderImpl::CreateProc(SkReadBuffer& buf) {
 void SkShadowShaderImpl::flatten(SkWriteBuffer& buf) const {
     this->INHERITED::flatten(buf);
 
-    buf.writeInt(fLights->numLights());
-
-    for (int l = 0; l < fLights->numLights(); ++l) {
-        const SkLights::Light& light = fLights->light(l);
-
-        bool isAmbient = SkLights::Light::kAmbient_LightType == light.type();
-
-        buf.writeBool(isAmbient);
-        buf.writeScalarArray(&light.color().fX, 3);
-        if (!isAmbient) {
-            buf.writeScalarArray(&light.dir().fX, 3);
-        }
-
-        buf.writeImage(light.getShadowMap());
-    }
+    fLights->flatten(buf);
 
     buf.writeInt(fDiffuseWidth);
     buf.writeInt(fDiffuseHeight);