Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "PropertyValuesHolder.h" |
| 18 | |
Romain Guy | 253f2c2 | 2016-09-28 17:34:42 -0700 | [diff] [blame] | 19 | #include "utils/Color.h" |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 20 | #include "utils/VectorDrawableUtils.h" |
| 21 | |
| 22 | #include <utils/Log.h> |
| 23 | |
| 24 | namespace android { |
| 25 | namespace uirenderer { |
| 26 | |
| 27 | using namespace VectorDrawable; |
| 28 | |
Romain Guy | 253f2c2 | 2016-09-28 17:34:42 -0700 | [diff] [blame] | 29 | inline constexpr float lerp(float fromValue, float toValue, float fraction) { |
| 30 | return float (fromValue * (1 - fraction) + toValue * fraction); |
| 31 | } |
| 32 | |
| 33 | inline constexpr float linearize(U8CPU component) { |
| 34 | return EOCF_sRGB(component / 255.0f); |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | // TODO: Add a test for this |
| 38 | void ColorEvaluator::evaluate(SkColor* outColor, |
| 39 | const SkColor& fromColor, const SkColor& toColor, float fraction) const { |
Romain Guy | 253f2c2 | 2016-09-28 17:34:42 -0700 | [diff] [blame] | 40 | float a = lerp(SkColorGetA(fromColor) / 255.0f, SkColorGetA(toColor) / 255.0f, fraction); |
| 41 | float r = lerp(linearize(SkColorGetR(fromColor)), linearize(SkColorGetR(toColor)), fraction); |
| 42 | float g = lerp(linearize(SkColorGetG(fromColor)), linearize(SkColorGetG(toColor)), fraction); |
| 43 | float b = lerp(linearize(SkColorGetB(fromColor)), linearize(SkColorGetB(toColor)), fraction); |
| 44 | *outColor = SkColorSetARGB( |
| 45 | (U8CPU) roundf(a * 255.0f), |
| 46 | (U8CPU) roundf(OECF_sRGB(r) * 255.0f), |
| 47 | (U8CPU) roundf(OECF_sRGB(g) * 255.0f), |
| 48 | (U8CPU) roundf(OECF_sRGB(b) * 255.0f)); |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | void PathEvaluator::evaluate(PathData* out, |
| 52 | const PathData& from, const PathData& to, float fraction) const { |
| 53 | VectorDrawableUtils::interpolatePaths(out, from, to, fraction); |
| 54 | } |
| 55 | |
| 56 | template<typename T> |
| 57 | const T PropertyValuesHolderImpl<T>::getValueFromData(float fraction) const { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 58 | if (mDataSource.size() == 0) { |
| 59 | LOG_ALWAYS_FATAL("No data source is defined"); |
| 60 | return 0; |
| 61 | } |
| 62 | if (fraction <= 0.0f) { |
| 63 | return mDataSource.front(); |
| 64 | } |
| 65 | if (fraction >= 1.0f) { |
| 66 | return mDataSource.back(); |
| 67 | } |
| 68 | |
| 69 | fraction *= mDataSource.size() - 1; |
| 70 | int lowIndex = floor(fraction); |
| 71 | fraction -= lowIndex; |
| 72 | |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 73 | T value; |
| 74 | mEvaluator->evaluate(&value, mDataSource[lowIndex], mDataSource[lowIndex + 1], fraction); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 75 | return value; |
| 76 | } |
| 77 | |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 78 | template<typename T> |
| 79 | const T PropertyValuesHolderImpl<T>::calculateAnimatedValue(float fraction) const { |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 80 | if (mDataSource.size() > 0) { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 81 | return getValueFromData(fraction); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 82 | } else { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 83 | T value; |
| 84 | mEvaluator->evaluate(&value, mStartValue, mEndValue, fraction); |
| 85 | return value; |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 86 | } |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | void GroupPropertyValuesHolder::setFraction(float fraction) { |
| 90 | float animatedValue = calculateAnimatedValue(fraction); |
Doris Liu | 1d8e194 | 2016-03-02 15:16:28 -0800 | [diff] [blame] | 91 | mGroup->mutateProperties()->setPropertyValue(mPropertyId, animatedValue); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 92 | } |
| 93 | |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 94 | void FullPathColorPropertyValuesHolder::setFraction(float fraction) { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 95 | SkColor animatedValue = calculateAnimatedValue(fraction); |
Doris Liu | 1d8e194 | 2016-03-02 15:16:28 -0800 | [diff] [blame] | 96 | mFullPath->mutateProperties()->setColorPropertyValue(mPropertyId, animatedValue); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | void FullPathPropertyValuesHolder::setFraction(float fraction) { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 100 | float animatedValue = calculateAnimatedValue(fraction); |
Doris Liu | 1d8e194 | 2016-03-02 15:16:28 -0800 | [diff] [blame] | 101 | mFullPath->mutateProperties()->setPropertyValue(mPropertyId, animatedValue); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | void PathDataPropertyValuesHolder::setFraction(float fraction) { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 105 | mEvaluator->evaluate(&mPathData, mStartValue, mEndValue, fraction); |
Doris Liu | 1d8e194 | 2016-03-02 15:16:28 -0800 | [diff] [blame] | 106 | mPath->mutateProperties()->setData(mPathData); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | void RootAlphaPropertyValuesHolder::setFraction(float fraction) { |
Doris Liu | a6b967c | 2016-06-02 16:20:18 -0700 | [diff] [blame] | 110 | float animatedValue = calculateAnimatedValue(fraction); |
Doris Liu | 1d8e194 | 2016-03-02 15:16:28 -0800 | [diff] [blame] | 111 | mTree->mutateProperties()->setRootAlpha(animatedValue); |
Doris Liu | 766431a | 2016-02-04 22:17:11 +0000 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | } // namepace uirenderer |
| 115 | } // namespace android |