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: |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 25 | BaseImageFilterCollapseBench() {} |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 26 | |
| 27 | protected: |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 28 | void doPreDraw(sk_sp<SkColorFilter> colorFilters[], int nFilters) { |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 29 | SkASSERT(!fImageFilter); |
| 30 | |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 31 | // Create a chain of ImageFilters from colorFilters |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 32 | for(int i = nFilters; i --> 0;) { |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 33 | fImageFilter = SkColorFilterImageFilter::Make(colorFilters[i], fImageFilter); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 34 | } |
| 35 | } |
| 36 | |
mtklein | a1ebeb2 | 2015-10-01 09:43:39 -0700 | [diff] [blame] | 37 | void onDraw(int loops, SkCanvas* canvas) override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 38 | makeBitmap(); |
| 39 | |
| 40 | for(int i = 0; i < loops; i++) { |
| 41 | SkPaint paint; |
| 42 | paint.setImageFilter(fImageFilter); |
| 43 | canvas->drawBitmap(fBitmap, 0, 0, &paint); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | private: |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 48 | sk_sp<SkImageFilter> fImageFilter; |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 49 | SkBitmap fBitmap; |
| 50 | |
| 51 | void makeBitmap() { |
| 52 | int W = 400; |
| 53 | int H = 400; |
| 54 | fBitmap.allocN32Pixels(W, H); |
| 55 | fBitmap.eraseColor(SK_ColorTRANSPARENT); |
| 56 | |
| 57 | SkCanvas canvas(fBitmap); |
| 58 | SkPaint paint; |
| 59 | SkPoint pts[] = { {0, 0}, {SkIntToScalar(W), SkIntToScalar(H)} }; |
| 60 | SkColor colors[] = { |
| 61 | SK_ColorBLACK, SK_ColorGREEN, SK_ColorCYAN, |
| 62 | SK_ColorRED, 0, SK_ColorBLUE, SK_ColorWHITE |
| 63 | }; |
reed | c6f28f7 | 2016-03-14 12:22:10 -0700 | [diff] [blame] | 64 | paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), |
| 65 | SkShader::kClamp_TileMode)); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 66 | canvas.drawPaint(paint); |
| 67 | } |
| 68 | }; |
| 69 | |
| 70 | class TableCollapseBench: public BaseImageFilterCollapseBench { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 71 | protected: |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 72 | const char* onGetName() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 73 | return "image_filter_collapse_table"; |
| 74 | } |
| 75 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 76 | void onDelayedSetup() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 77 | for (int i = 0; i < 256; ++i) { |
| 78 | int n = i >> 5; |
| 79 | table1[i] = (n << 5) | (n << 2) | (n >> 1); |
| 80 | |
| 81 | table2[i] = i * i / 255; |
| 82 | |
| 83 | float fi = i / 255.0f; |
| 84 | table3[i] = static_cast<uint8_t>(sqrtf(fi) * 255); |
| 85 | } |
| 86 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 87 | sk_sp<SkColorFilter> colorFilters[] = { |
| 88 | SkTableColorFilter::Make(table1), |
| 89 | SkTableColorFilter::Make(table2), |
| 90 | SkTableColorFilter::Make(table3), |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 91 | }; |
| 92 | |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 93 | this->doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters)); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | private: |
| 97 | uint8_t table1[256], table2[256], table3[256]; |
| 98 | }; |
| 99 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 100 | static sk_sp<SkColorFilter> make_brightness(float amount) { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 101 | SkScalar amount255 = SkScalarMul(amount, SkIntToScalar(255)); |
| 102 | SkScalar matrix[20] = { 1, 0, 0, 0, amount255, |
| 103 | 0, 1, 0, 0, amount255, |
| 104 | 0, 0, 1, 0, amount255, |
| 105 | 0, 0, 0, 1, 0 }; |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 106 | return SkColorFilter::MakeMatrixFilterRowMajor255(matrix); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 107 | } |
| 108 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 109 | static sk_sp<SkColorFilter> make_grayscale() { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 110 | SkScalar matrix[20]; |
| 111 | memset(matrix, 0, 20 * sizeof(SkScalar)); |
| 112 | matrix[0] = matrix[5] = matrix[10] = 0.2126f; |
| 113 | matrix[1] = matrix[6] = matrix[11] = 0.7152f; |
| 114 | matrix[2] = matrix[7] = matrix[12] = 0.0722f; |
| 115 | matrix[18] = 1.0f; |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 116 | return SkColorFilter::MakeMatrixFilterRowMajor255(matrix); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 117 | } |
| 118 | |
| 119 | class MatrixCollapseBench: public BaseImageFilterCollapseBench { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 120 | protected: |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 121 | const char* onGetName() override { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 122 | return "image_filter_collapse_matrix"; |
| 123 | } |
| 124 | |
reed | d053ce9 | 2016-03-22 10:17:23 -0700 | [diff] [blame] | 125 | void onDelayedSetup() override { |
| 126 | sk_sp<SkColorFilter> colorFilters[] = { |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 127 | make_brightness(0.1f), |
| 128 | make_grayscale(), |
| 129 | make_brightness(-0.1f), |
| 130 | }; |
| 131 | |
robertphillips | 5605b56 | 2016-04-05 11:50:42 -0700 | [diff] [blame] | 132 | this->doPreDraw(colorFilters, SK_ARRAY_COUNT(colorFilters)); |
cwallez | c12b74d | 2015-01-26 07:45:53 -0800 | [diff] [blame] | 133 | } |
| 134 | }; |
| 135 | |
| 136 | DEF_BENCH(return new TableCollapseBench;) |
| 137 | DEF_BENCH(return new MatrixCollapseBench;) |