ImageFilterDAGBench.cpp 4.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150
  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. #include "bench/Benchmark.h"
  8. #include "include/core/SkCanvas.h"
  9. #include "include/core/SkImage.h"
  10. #include "include/effects/SkBlurImageFilter.h"
  11. #include "include/effects/SkDisplacementMapEffect.h"
  12. #include "include/effects/SkMergeImageFilter.h"
  13. #include "include/effects/SkOffsetImageFilter.h"
  14. #include "include/effects/SkXfermodeImageFilter.h"
  15. #include "tools/Resources.h"
  16. // Exercise a blur filter connected to 5 inputs of the same merge filter.
  17. // This bench shows an improvement in performance once cacheing of re-used
  18. // nodes is implemented, since the DAG is no longer flattened to a tree.
  19. class ImageFilterDAGBench : public Benchmark {
  20. public:
  21. ImageFilterDAGBench() {}
  22. protected:
  23. const char* onGetName() override {
  24. return "image_filter_dag";
  25. }
  26. void onDraw(int loops, SkCanvas* canvas) override {
  27. const SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400));
  28. for (int j = 0; j < loops; j++) {
  29. sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(20.0f, 20.0f, nullptr));
  30. sk_sp<SkImageFilter> inputs[kNumInputs];
  31. for (int i = 0; i < kNumInputs; ++i) {
  32. inputs[i] = blur;
  33. }
  34. SkPaint paint;
  35. paint.setImageFilter(SkMergeImageFilter::Make(inputs, kNumInputs));
  36. canvas->drawRect(rect, paint);
  37. }
  38. }
  39. private:
  40. static const int kNumInputs = 5;
  41. typedef Benchmark INHERITED;
  42. };
  43. class ImageMakeWithFilterDAGBench : public Benchmark {
  44. public:
  45. ImageMakeWithFilterDAGBench() {}
  46. protected:
  47. const char* onGetName() override {
  48. return "image_make_with_filter_dag";
  49. }
  50. void onDelayedSetup() override {
  51. fImage = GetResourceAsImage("images/mandrill_512.png");
  52. }
  53. void onDraw(int loops, SkCanvas* canvas) override {
  54. SkIRect subset = SkIRect::MakeSize(fImage->dimensions());
  55. SkIPoint offset = SkIPoint::Make(0, 0);
  56. SkIRect discardSubset;
  57. sk_sp<SkImage> image = fImage;
  58. for (int j = 0; j < loops; j++) {
  59. sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(20.0f, 20.0f, nullptr));
  60. sk_sp<SkImageFilter> inputs[kNumInputs];
  61. for (int i = 0; i < kNumInputs; ++i) {
  62. inputs[i] = blur;
  63. }
  64. sk_sp<SkImageFilter> mergeFilter = SkMergeImageFilter::Make(inputs, kNumInputs);
  65. image = image->makeWithFilter(mergeFilter.get(), subset, subset, &discardSubset,
  66. &offset);
  67. SkASSERT(image && image->dimensions() == fImage->dimensions());
  68. }
  69. }
  70. private:
  71. static const int kNumInputs = 5;
  72. sk_sp<SkImage> fImage;
  73. typedef Benchmark INHERITED;
  74. };
  75. // Exercise a blur filter connected to both inputs of an SkDisplacementMapEffect.
  76. class ImageFilterDisplacedBlur : public Benchmark {
  77. public:
  78. ImageFilterDisplacedBlur() {}
  79. protected:
  80. const char* onGetName() override {
  81. return "image_filter_displaced_blur";
  82. }
  83. void onDraw(int loops, SkCanvas* canvas) override {
  84. for (int j = 0; j < loops; j++) {
  85. sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(4.0f, 4.0f, nullptr));
  86. auto xSelector = SkDisplacementMapEffect::kR_ChannelSelectorType;
  87. auto ySelector = SkDisplacementMapEffect::kB_ChannelSelectorType;
  88. SkScalar scale = 2;
  89. SkPaint paint;
  90. paint.setImageFilter(SkDisplacementMapEffect::Make(xSelector, ySelector, scale,
  91. blur, blur));
  92. SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400));
  93. canvas->drawRect(rect, paint);
  94. }
  95. }
  96. private:
  97. typedef Benchmark INHERITED;
  98. };
  99. // Exercise an Xfermode kSrcIn filter compositing two inputs which have a small intersection.
  100. class ImageFilterXfermodeIn : public Benchmark {
  101. public:
  102. ImageFilterXfermodeIn() {}
  103. protected:
  104. const char* onGetName() override { return "image_filter_xfermode_in"; }
  105. void onDraw(int loops, SkCanvas* canvas) override {
  106. for (int j = 0; j < loops; j++) {
  107. auto blur = SkBlurImageFilter::Make(20.0f, 20.0f, nullptr);
  108. auto offset1 = SkOffsetImageFilter::Make(100.0f, 100.0f, blur);
  109. auto offset2 = SkOffsetImageFilter::Make(-100.0f, -100.0f, blur);
  110. auto xfermode =
  111. SkXfermodeImageFilter::Make(SkBlendMode::kSrcIn, offset1, offset2, nullptr);
  112. SkPaint paint;
  113. paint.setImageFilter(xfermode);
  114. canvas->drawRect(SkRect::MakeWH(200.0f, 200.0f), paint);
  115. }
  116. }
  117. private:
  118. typedef Benchmark INHERITED;
  119. };
  120. DEF_BENCH(return new ImageFilterDAGBench;)
  121. DEF_BENCH(return new ImageMakeWithFilterDAGBench;)
  122. DEF_BENCH(return new ImageFilterDisplacedBlur;)
  123. DEF_BENCH(return new ImageFilterXfermodeIn;)