cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "Benchmark.h" |
| 9 | #include "SkBitmap.h" |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkColorFilterImageFilter.h" |
| 12 | #include "SkColorMatrixFilter.h" |
| 13 | #include "SkGradientShader.h" |
| 14 | #include "SkImageFilter.h" |
| 15 | #include "SkTableColorFilter.h" |
| 16 | |
| 17 | // Chains several matrix color filters image filter or several |
| 18 | // table filter image filters and draws a bitmap. |
| 19 | // This bench shows an improvement in performance and memory |
| 20 | // when collapsing matrices or tables is implemented since all |
| 21 | // the passes are collapsed in one. |
| 22 | |
| 23 | class BaseImageFilterCollapseBench : public Benchmark { |
| 24 | public: |
| 25 | BaseImageFilterCollapseBench(): fImageFilter(NULL) {} |
| 26 | ~BaseImageFilterCollapseBench() { |
| 27 | SkSafeUnref(fImageFilter); |
| 28 | } |
| 29 | |
| 30 | protected: |
| 31 | void doPreDraw(SkColorFilter* colorFilters[], int nFilters) { |
| 32 | // Create a chain of ImageFilters from colorFilters |
| 33 | fImageFilter = NULL; |
| 34 | for(int i = nFilters; i --> 0;) { |
| 35 | SkAutoTUnref<SkImageFilter> filter( |
senorblanco | 24e06d5 | 2015-03-18 12:11:33 -0700 | [diff] [blame] | 36 | SkColorFilterImageFilter::Create(colorFilters[i], fImageFilter, NULL) |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 37 | ); |
| 38 | SkRefCnt_SafeAssign(fImageFilter, filter.get()); |
| 39 | } |
| 40 | } |
| 41 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 42 | void onDraw(const int loops, SkCanvas* canvas) override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 43 | makeBitmap(); |
| 44 | |
| 45 | for(int i = 0; i < loops; i++) { |
| 46 | SkPaint paint; |
| 47 | paint.setImageFilter(fImageFilter); |
| 48 | canvas->drawBitmap(fBitmap, 0, 0, &paint); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | private: |
| 53 | SkImageFilter* fImageFilter; |
| 54 | SkBitmap fBitmap; |
| 55 | |
| 56 | void makeBitmap() { |
| 57 | int W = 400; |
| 58 | int H = 400; |
| 59 | fBitmap.allocN32Pixels(W, H); |
| 60 | fBitmap.eraseColor(SK_ColorTRANSPARENT); |
| 61 | |
| 62 | SkCanvas canvas(fBitmap); |
| 63 | SkPaint paint; |
| 64 | SkPoint pts[] = { {0, 0}, {SkIntToScalar(W), SkIntToScalar(H)} }; |
| 65 | SkColor colors[] = { |
| 66 | SK_ColorBLACK, SK_ColorGREEN, SK_ColorCYAN, |
| 67 | SK_ColorRED, 0, SK_ColorBLUE, SK_ColorWHITE |
| 68 | }; |
| 69 | SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear( |
| 70 | pts, colors, NULL, SK_ARRAY_COUNT(colors), SkShader::kClamp_TileMode |
| 71 | )); |
| 72 | paint.setShader(shader); |
| 73 | canvas.drawPaint(paint); |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | class TableCollapseBench: public BaseImageFilterCollapseBench { |
| 78 | public: |
| 79 | virtual ~TableCollapseBench() {} |
| 80 | |
| 81 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 82 | virtual const char* onGetName() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 83 | return "image_filter_collapse_table"; |
| 84 | } |
| 85 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 86 | virtual void onPreDraw() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 87 | for (int i = 0; i < 256; ++i) { |
| 88 | int n = i >> 5; |
| 89 | table1[i] = (n << 5) | (n << 2) | (n >> 1); |
| 90 | |
| 91 | table2[i] = i * i / 255; |
| 92 | |
| 93 | float fi = i / 255.0f; |
| 94 | table3[i] = static_cast<uint8_t>(sqrtf(fi) * 255); |
| 95 | } |
| 96 | |
| 97 | SkColorFilter* colorFilters[] = { |
| 98 | SkTableColorFilter::Create(table1), |
| 99 | SkTableColorFilter::Create(table2), |
| 100 | SkTableColorFilter::Create(table3), |
| 101 | }; |
| 102 | |
| 103 | doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters)); |
| 104 | |
| 105 | for(unsigned i = 0; i < SK_ARRAY_COUNT(colorFilters); i++) { |
| 106 | colorFilters[i]->unref(); |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | private: |
| 111 | uint8_t table1[256], table2[256], table3[256]; |
| 112 | }; |
| 113 | |
| 114 | static SkColorFilter* make_brightness(float amount) { |
| 115 | SkScalar amount255 = SkScalarMul(amount, SkIntToScalar(255)); |
| 116 | SkScalar matrix[20] = { 1, 0, 0, 0, amount255, |
| 117 | 0, 1, 0, 0, amount255, |
| 118 | 0, 0, 1, 0, amount255, |
| 119 | 0, 0, 0, 1, 0 }; |
| 120 | return SkColorMatrixFilter::Create(matrix); |
| 121 | } |
| 122 | |
| 123 | static SkColorFilter* make_grayscale() { |
| 124 | SkScalar matrix[20]; |
| 125 | memset(matrix, 0, 20 * sizeof(SkScalar)); |
| 126 | matrix[0] = matrix[5] = matrix[10] = 0.2126f; |
| 127 | matrix[1] = matrix[6] = matrix[11] = 0.7152f; |
| 128 | matrix[2] = matrix[7] = matrix[12] = 0.0722f; |
| 129 | matrix[18] = 1.0f; |
| 130 | return SkColorMatrixFilter::Create(matrix); |
| 131 | } |
| 132 | |
| 133 | class MatrixCollapseBench: public BaseImageFilterCollapseBench { |
| 134 | public: |
| 135 | virtual ~MatrixCollapseBench() {} |
| 136 | |
| 137 | protected: |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 138 | virtual const char* onGetName() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 139 | return "image_filter_collapse_matrix"; |
| 140 | } |
| 141 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 142 | virtual void onPreDraw() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 143 | SkColorFilter* colorFilters[] = { |
| 144 | make_brightness(0.1f), |
| 145 | make_grayscale(), |
| 146 | make_brightness(-0.1f), |
| 147 | }; |
| 148 | |
| 149 | doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters)); |
| 150 | |
| 151 | for(unsigned i = 0; i < SK_ARRAY_COUNT(colorFilters); i++) { |
| 152 | colorFilters[i]->unref(); |
| 153 | } |
| 154 | } |
| 155 | }; |
| 156 | |
| 157 | DEF_BENCH(return new TableCollapseBench;) |
| 158 | DEF_BENCH(return new MatrixCollapseBench;) |