Revert "Revert "VectorDrawable native rendering - Step 4 of MANY""
This reverts commit 5a11e8d0ba21624025b89ac63bbd18befa55be0e.
Change-Id: I7a48b59c4f930dad65ddc8590c25a12636244ea2
diff --git a/libs/hwui/PropertyValuesHolder.cpp b/libs/hwui/PropertyValuesHolder.cpp
new file mode 100644
index 0000000..8f837f6
--- /dev/null
+++ b/libs/hwui/PropertyValuesHolder.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "PropertyValuesHolder.h"
+
+#include "utils/VectorDrawableUtils.h"
+
+#include <utils/Log.h>
+
+namespace android {
+namespace uirenderer {
+
+using namespace VectorDrawable;
+
+float PropertyValuesHolder::getValueFromData(float fraction) {
+ if (mDataSource.size() == 0) {
+ LOG_ALWAYS_FATAL("No data source is defined");
+ return 0;
+ }
+ if (fraction <= 0.0f) {
+ return mDataSource.front();
+ }
+ if (fraction >= 1.0f) {
+ return mDataSource.back();
+ }
+
+ fraction *= mDataSource.size() - 1;
+ int lowIndex = floor(fraction);
+ fraction -= lowIndex;
+
+ float value = mDataSource[lowIndex] * (1.0f - fraction)
+ + mDataSource[lowIndex + 1] * fraction;
+ return value;
+}
+
+void GroupPropertyValuesHolder::setFraction(float fraction) {
+ float animatedValue;
+ if (mDataSource.size() > 0) {
+ animatedValue = getValueFromData(fraction);
+ } else {
+ animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
+ }
+ mGroup->setPropertyValue(mPropertyId, animatedValue);
+}
+
+inline U8CPU lerp(U8CPU fromValue, U8CPU toValue, float fraction) {
+ return (U8CPU) (fromValue * (1 - fraction) + toValue * fraction);
+}
+
+// TODO: Add a test for this
+SkColor FullPathColorPropertyValuesHolder::interpolateColors(SkColor fromColor, SkColor toColor,
+ float fraction) {
+ U8CPU alpha = lerp(SkColorGetA(fromColor), SkColorGetA(toColor), fraction);
+ U8CPU red = lerp(SkColorGetR(fromColor), SkColorGetR(toColor), fraction);
+ U8CPU green = lerp(SkColorGetG(fromColor), SkColorGetG(toColor), fraction);
+ U8CPU blue = lerp(SkColorGetB(fromColor), SkColorGetB(toColor), fraction);
+ return SkColorSetARGB(alpha, red, green, blue);
+}
+
+void FullPathColorPropertyValuesHolder::setFraction(float fraction) {
+ SkColor animatedValue = interpolateColors(mStartValue, mEndValue, fraction);
+ mFullPath->setColorPropertyValue(mPropertyId, animatedValue);
+}
+
+void FullPathPropertyValuesHolder::setFraction(float fraction) {
+ float animatedValue;
+ if (mDataSource.size() > 0) {
+ animatedValue = getValueFromData(fraction);
+ } else {
+ animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
+ }
+ mFullPath->setPropertyValue(mPropertyId, animatedValue);
+}
+
+void PathDataPropertyValuesHolder::setFraction(float fraction) {
+ VectorDrawableUtils::interpolatePaths(&mPathData, mStartValue, mEndValue, fraction);
+ mPath->setPathData(mPathData);
+}
+
+void RootAlphaPropertyValuesHolder::setFraction(float fraction) {
+ float animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
+ mTree->setRootAlpha(animatedValue);
+}
+
+} // namepace uirenderer
+} // namespace android