1/*
2 * Copyright (C) 2017 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 "TestSceneBase.h"
18
19#include <SkColorMatrixFilter.h>
20#include <SkGradientShader.h>
21
22class SimpleColorMatrixAnimation;
23
24static TestScene::Registrar _SimpleColorMatrix(TestScene::Info{
25        "simpleColorMatrix",
26        "A color matrix shader benchmark for the simple scale/translate case, which has R, G, and "
27        "B "
28        "all scaled and translated the same amount.",
29        TestScene::simpleCreateScene<SimpleColorMatrixAnimation>});
30
31class SimpleColorMatrixAnimation : public TestScene {
32public:
33    std::vector<sp<RenderNode> > cards;
34    void createContent(int width, int height, Canvas& canvas) override {
35        canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
36
37        sp<RenderNode> card = createCard(0, 0, width, height);
38        canvas.drawRenderNode(card.get());
39        cards.push_back(card);
40    }
41    void doFrame(int frameNr) override {
42        int curFrame = frameNr % 20;
43        for (size_t ci = 0; ci < cards.size(); ci++) {
44            cards[ci]->mutateStagingProperties().setTranslationX(curFrame);
45            cards[ci]->mutateStagingProperties().setTranslationY(curFrame);
46            cards[ci]->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
47        }
48    }
49
50private:
51    sp<RenderNode> createCard(int x, int y, int width, int height) {
52        return TestUtils::createNode(
53                x, y, x + width, y + height,
54                [width, height](RenderProperties& props, Canvas& canvas) {
55                    SkPaint paint;
56                    float matrix[20] = {0};
57
58                    // Simple scale/translate case where R, G, and B are all treated equivalently
59                    matrix[SkColorMatrix::kR_Scale] = 1.1f;
60                    matrix[SkColorMatrix::kG_Scale] = 1.1f;
61                    matrix[SkColorMatrix::kB_Scale] = 1.1f;
62                    matrix[SkColorMatrix::kA_Scale] = 0.5f;
63
64                    matrix[SkColorMatrix::kR_Trans] = 5.0f;
65                    matrix[SkColorMatrix::kG_Trans] = 5.0f;
66                    matrix[SkColorMatrix::kB_Trans] = 5.0f;
67                    matrix[SkColorMatrix::kA_Trans] = 10.0f;
68
69                    paint.setColorFilter(SkColorFilter::MakeMatrixFilterRowMajor255(matrix));
70
71                    // set a shader so it's not likely for the matrix to be optimized away (since a
72                    // clever
73                    // enough renderer might apply it directly to the paint color)
74                    float pos[] = {0, 1};
75                    SkPoint pts[] = {SkPoint::Make(0, 0), SkPoint::Make(width, height)};
76                    SkColor colors[2] = {Color::DeepPurple_500, Color::DeepOrange_500};
77                    paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, 2,
78                                                                 SkShader::kClamp_TileMode));
79
80                    // overdraw several times to emphasize shader cost
81                    for (int i = 0; i < 10; i++) {
82                        canvas.drawRect(i, i, width, height, paint);
83                    }
84                });
85    }
86};
87