Create colored shadows demo

Test: HwAccelerationTest demo
Bug: 68211332
Change-Id: Ia53a6ac2854570d0495b355bbebee1dcec2f47ba

9 files changed, 185 insertions, 1 deletions

diff --git a/core/java/android/view/RenderNode.java b/core/java/android/view/RenderNode.java
index ea6e63c3b9de..5070151815f5 100644
--- a/core/java/android/view/RenderNode.java
+++ b/core/java/android/view/RenderNode.java
@@ -353,6 +353,11 @@ public class RenderNode {
         return nHasShadow(mNativeRenderNode);
     }
 
+    /** setShadowColor */
+    public boolean setShadowColor(int color) {
+        return nSetShadowColor(mNativeRenderNode, color);
+    }
+
     /**
      * Enables or disables clipping to the outline.
      *
@@ -910,6 +915,8 @@ public class RenderNode {
     @CriticalNative
     private static native boolean nHasShadow(long renderNode);
     @CriticalNative
+    private static native boolean nSetShadowColor(long renderNode, int color);
+    @CriticalNative
     private static native boolean nSetClipToOutline(long renderNode, boolean clipToOutline);
     @CriticalNative
     private static native boolean nSetRevealClip(long renderNode,
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index e12c0b0d93b8..be09fe869518 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -15182,6 +15182,15 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         return mRenderNode.hasShadow();
     }
 
+    /**
+     * @hide
+     */
+    public void setShadowColor(@ColorInt int color) {
+        if (mRenderNode.setShadowColor(color)) {
+            invalidateViewProperty(true, true);
+        }
+    }
+
 
     /** @hide */
     public void setRevealClip(boolean shouldClip, float x, float y, float radius) {
diff --git a/core/jni/android_view_RenderNode.cpp b/core/jni/android_view_RenderNode.cpp
index 6e8c93132562..37ff8c8cefd2 100644
--- a/core/jni/android_view_RenderNode.cpp
+++ b/core/jni/android_view_RenderNode.cpp
@@ -174,6 +174,10 @@ static jboolean android_view_RenderNode_hasShadow(jlong renderNodePtr) {
     return renderNode->stagingProperties().hasShadow();
 }
 
+static jboolean android_view_RenderNode_setShadowColor(jlong renderNodePtr, jint shadowColor) {
+    return SET_AND_DIRTY(setShadowColor, static_cast<SkColor>(shadowColor), RenderNode::GENERIC);
+}
+
 static jboolean android_view_RenderNode_setClipToOutline(jlong renderNodePtr,
         jboolean clipToOutline) {
     RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
@@ -571,6 +575,7 @@ static const JNINativeMethod gMethods[] = {
     { "nSetOutlineEmpty",      "(J)Z",   (void*) android_view_RenderNode_setOutlineEmpty },
     { "nSetOutlineNone",       "(J)Z",   (void*) android_view_RenderNode_setOutlineNone },
     { "nHasShadow",            "(J)Z",   (void*) android_view_RenderNode_hasShadow },
+    { "nSetShadowColor",       "(JI)Z",  (void*) android_view_RenderNode_setShadowColor },
     { "nSetClipToOutline",     "(JZ)Z",  (void*) android_view_RenderNode_setClipToOutline },
     { "nSetRevealClip",        "(JZFFF)Z", (void*) android_view_RenderNode_setRevealClip },
 
diff --git a/libs/hwui/RenderProperties.h b/libs/hwui/RenderProperties.h
index 837c4effea9f..3d2c2520624b 100644
--- a/libs/hwui/RenderProperties.h
+++ b/libs/hwui/RenderProperties.h
@@ -26,6 +26,7 @@
 
 #include <SkBlendMode.h>
 #include <SkCamera.h>
+#include <SkColor.h>
 #include <SkMatrix.h>
 #include <SkRegion.h>
 
@@ -506,6 +507,14 @@ public:
                getOutline().getAlpha() != 0.0f;
     }
 
+    SkColor getShadowColor() const {
+        return mPrimitiveFields.mShadowColor;
+    }
+
+    bool setShadowColor(SkColor shadowColor) {
+        return RP_SET(mPrimitiveFields.mShadowColor, shadowColor);
+    }
+
     bool fitsOnLayer() const {
         const DeviceInfo* deviceInfo = DeviceInfo::get();
         return mPrimitiveFields.mWidth <= deviceInfo->maxTextureSize() &&
@@ -529,6 +538,7 @@ private:
         int mLeft = 0, mTop = 0, mRight = 0, mBottom = 0;
         int mWidth = 0, mHeight = 0;
         int mClippingFlags = CLIP_TO_BOUNDS;
+        SkColor mShadowColor = SK_ColorBLACK;
         float mAlpha = 1;
         float mTranslationX = 0, mTranslationY = 0, mTranslationZ = 0;
         float mElevation = 0;
diff --git a/libs/hwui/pipeline/skia/ReorderBarrierDrawables.cpp b/libs/hwui/pipeline/skia/ReorderBarrierDrawables.cpp
index 67e06022b17c..7b59ccf3eec7 100644
--- a/libs/hwui/pipeline/skia/ReorderBarrierDrawables.cpp
+++ b/libs/hwui/pipeline/skia/ReorderBarrierDrawables.cpp
@@ -189,7 +189,7 @@ void EndReorderBarrierDrawable::drawShadow(SkCanvas* canvas, RenderNodeDrawable*
     }
     SkShadowUtils::DrawShadow(
             canvas, *casterPath, zParams, skiaLightPos, SkiaPipeline::getLightRadius(),
-            ambientAlpha, spotAlpha, SK_ColorBLACK,
+            ambientAlpha, spotAlpha, casterProperties.getShadowColor(),
             casterAlpha < 1.0f ? SkShadowFlags::kTransparentOccluder_ShadowFlag : 0);
 }
 
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index 9caf9d0f6e26..ebf5f6854c6f 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -282,6 +282,15 @@
                 <category android:name="com.android.test.hwui.TEST" />
             </intent-filter>
         </activity>
+
+        <activity
+            android:name="ColoredShadowsActivity"
+            android:label="View/ColoredShadows">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.android.test.hwui.TEST" />
+            </intent-filter>
+        </activity>
         
         <activity
                 android:name="OpaqueActivity"
diff --git a/tests/HwAccelerationTest/res/layout/colored_shadows_activity.xml b/tests/HwAccelerationTest/res/layout/colored_shadows_activity.xml
new file mode 100644
index 000000000000..18633250cfcb
--- /dev/null
+++ b/tests/HwAccelerationTest/res/layout/colored_shadows_activity.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:id="@+id/colored_grid">
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+    <include layout="@layout/colored_shadows_row" />
+</LinearLayout>
diff --git a/tests/HwAccelerationTest/res/layout/colored_shadows_row.xml b/tests/HwAccelerationTest/res/layout/colored_shadows_row.xml
new file mode 100644
index 000000000000..61b075974926
--- /dev/null
+++ b/tests/HwAccelerationTest/res/layout/colored_shadows_row.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:orientation="horizontal"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:paddingTop="25dp"
+              android:paddingBottom="25dp"
+              android:clipToPadding="false" >
+    <View android:id="@+id/grey"
+          android:layout_width="50dp"
+          android:layout_height="50dp"
+          android:elevation="16dp"
+          android:background="#3C4043"
+          android:layout_marginLeft="20dp" />
+    <View android:id="@+id/blue"
+          android:layout_width="50dp"
+          android:layout_height="50dp"
+          android:elevation="16dp"
+          android:background="#185ABC"
+          android:layout_marginLeft="20dp"/>
+    <View android:id="@+id/red"
+          android:layout_width="50dp"
+          android:layout_height="50dp"
+          android:elevation="16dp"
+          android:background="#B31412"
+          android:layout_marginLeft="20dp"/>
+    <View android:id="@+id/yellow"
+          android:layout_width="50dp"
+          android:layout_height="50dp"
+          android:elevation="16dp"
+          android:background="#EA8600"
+          android:layout_marginLeft="20dp"/>
+    <View android:id="@+id/green"
+          android:layout_width="50dp"
+          android:layout_height="50dp"
+          android:elevation="16dp"
+          android:background="#137333"
+          android:layout_marginLeft="20dp"/>
+</LinearLayout>
diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/ColoredShadowsActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/ColoredShadowsActivity.java
new file mode 100644
index 000000000000..135c93c97af2
--- /dev/null
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/ColoredShadowsActivity.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.test.hwui;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.View;
+import android.view.ViewGroup;
+
+public class ColoredShadowsActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.colored_shadows_activity);
+        ViewGroup grid = findViewById(R.id.colored_grid);
+        for (int i = 0; i < grid.getChildCount(); i++) {
+            setShadowColors((ViewGroup) grid.getChildAt(i), i);
+        }
+    }
+
+    private void setShadowColors(ViewGroup row, int rowIndex) {
+        for (int i = 0; i < row.getChildCount(); i++) {
+            View view = row.getChildAt(i);
+            view.setShadowColor(shadowColorFor(view));
+            view.setElevation(6.0f * (rowIndex + 1));
+        }
+    }
+
+    private int shadowColorFor(View view) {
+        switch (view.getId()) {
+            case R.id.grey: return 0xFF3C4043;
+            case R.id.blue: return 0xFF185ABC;
+            case R.id.red: return 0xFFB31412;
+            case R.id.yellow: return 0xFFEA8600;
+            case R.id.green: return 0xFF137333;
+            default: return 0xFF000000;
+        }
+    }
+
+}