766431aa57
This reverts commit 5a11e8d0ba21624025b89ac63bbd18befa55be0e. Change-Id: I7a48b59c4f930dad65ddc8590c25a12636244ea2
100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "PropertyValuesHolder.h"
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#include "utils/VectorDrawableUtils.h"
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#include <utils/Log.h>
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namespace android {
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namespace uirenderer {
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using namespace VectorDrawable;
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float PropertyValuesHolder::getValueFromData(float fraction) {
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if (mDataSource.size() == 0) {
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LOG_ALWAYS_FATAL("No data source is defined");
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return 0;
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}
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if (fraction <= 0.0f) {
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return mDataSource.front();
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}
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if (fraction >= 1.0f) {
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return mDataSource.back();
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}
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fraction *= mDataSource.size() - 1;
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int lowIndex = floor(fraction);
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fraction -= lowIndex;
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float value = mDataSource[lowIndex] * (1.0f - fraction)
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+ mDataSource[lowIndex + 1] * fraction;
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return value;
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}
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void GroupPropertyValuesHolder::setFraction(float fraction) {
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float animatedValue;
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if (mDataSource.size() > 0) {
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animatedValue = getValueFromData(fraction);
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} else {
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animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
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}
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mGroup->setPropertyValue(mPropertyId, animatedValue);
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}
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inline U8CPU lerp(U8CPU fromValue, U8CPU toValue, float fraction) {
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return (U8CPU) (fromValue * (1 - fraction) + toValue * fraction);
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}
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// TODO: Add a test for this
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SkColor FullPathColorPropertyValuesHolder::interpolateColors(SkColor fromColor, SkColor toColor,
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float fraction) {
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U8CPU alpha = lerp(SkColorGetA(fromColor), SkColorGetA(toColor), fraction);
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U8CPU red = lerp(SkColorGetR(fromColor), SkColorGetR(toColor), fraction);
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U8CPU green = lerp(SkColorGetG(fromColor), SkColorGetG(toColor), fraction);
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U8CPU blue = lerp(SkColorGetB(fromColor), SkColorGetB(toColor), fraction);
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return SkColorSetARGB(alpha, red, green, blue);
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}
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void FullPathColorPropertyValuesHolder::setFraction(float fraction) {
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SkColor animatedValue = interpolateColors(mStartValue, mEndValue, fraction);
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mFullPath->setColorPropertyValue(mPropertyId, animatedValue);
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}
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void FullPathPropertyValuesHolder::setFraction(float fraction) {
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float animatedValue;
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if (mDataSource.size() > 0) {
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animatedValue = getValueFromData(fraction);
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} else {
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animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
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}
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mFullPath->setPropertyValue(mPropertyId, animatedValue);
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}
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void PathDataPropertyValuesHolder::setFraction(float fraction) {
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VectorDrawableUtils::interpolatePaths(&mPathData, mStartValue, mEndValue, fraction);
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mPath->setPathData(mPathData);
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}
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void RootAlphaPropertyValuesHolder::setFraction(float fraction) {
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float animatedValue = mStartValue * (1 - fraction) + mEndValue * fraction;
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mTree->setRootAlpha(animatedValue);
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}
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} // namepace uirenderer
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} // namespace android
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