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- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "bench/Benchmark.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkImage.h"
- #include "include/effects/SkBlurImageFilter.h"
- #include "include/effects/SkDisplacementMapEffect.h"
- #include "include/effects/SkMergeImageFilter.h"
- #include "include/effects/SkOffsetImageFilter.h"
- #include "include/effects/SkXfermodeImageFilter.h"
- #include "tools/Resources.h"
- // Exercise a blur filter connected to 5 inputs of the same merge filter.
- // This bench shows an improvement in performance once cacheing of re-used
- // nodes is implemented, since the DAG is no longer flattened to a tree.
- class ImageFilterDAGBench : public Benchmark {
- public:
- ImageFilterDAGBench() {}
- protected:
- const char* onGetName() override {
- return "image_filter_dag";
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- const SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400));
- for (int j = 0; j < loops; j++) {
- sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(20.0f, 20.0f, nullptr));
- sk_sp<SkImageFilter> inputs[kNumInputs];
- for (int i = 0; i < kNumInputs; ++i) {
- inputs[i] = blur;
- }
- SkPaint paint;
- paint.setImageFilter(SkMergeImageFilter::Make(inputs, kNumInputs));
- canvas->drawRect(rect, paint);
- }
- }
- private:
- static const int kNumInputs = 5;
- typedef Benchmark INHERITED;
- };
- class ImageMakeWithFilterDAGBench : public Benchmark {
- public:
- ImageMakeWithFilterDAGBench() {}
- protected:
- const char* onGetName() override {
- return "image_make_with_filter_dag";
- }
- void onDelayedSetup() override {
- fImage = GetResourceAsImage("images/mandrill_512.png");
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- SkIRect subset = SkIRect::MakeSize(fImage->dimensions());
- SkIPoint offset = SkIPoint::Make(0, 0);
- SkIRect discardSubset;
- sk_sp<SkImage> image = fImage;
- for (int j = 0; j < loops; j++) {
- sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(20.0f, 20.0f, nullptr));
- sk_sp<SkImageFilter> inputs[kNumInputs];
- for (int i = 0; i < kNumInputs; ++i) {
- inputs[i] = blur;
- }
- sk_sp<SkImageFilter> mergeFilter = SkMergeImageFilter::Make(inputs, kNumInputs);
- image = image->makeWithFilter(mergeFilter.get(), subset, subset, &discardSubset,
- &offset);
- SkASSERT(image && image->dimensions() == fImage->dimensions());
- }
- }
- private:
- static const int kNumInputs = 5;
- sk_sp<SkImage> fImage;
- typedef Benchmark INHERITED;
- };
- // Exercise a blur filter connected to both inputs of an SkDisplacementMapEffect.
- class ImageFilterDisplacedBlur : public Benchmark {
- public:
- ImageFilterDisplacedBlur() {}
- protected:
- const char* onGetName() override {
- return "image_filter_displaced_blur";
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- for (int j = 0; j < loops; j++) {
- sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(4.0f, 4.0f, nullptr));
- auto xSelector = SkDisplacementMapEffect::kR_ChannelSelectorType;
- auto ySelector = SkDisplacementMapEffect::kB_ChannelSelectorType;
- SkScalar scale = 2;
- SkPaint paint;
- paint.setImageFilter(SkDisplacementMapEffect::Make(xSelector, ySelector, scale,
- blur, blur));
- SkRect rect = SkRect::Make(SkIRect::MakeWH(400, 400));
- canvas->drawRect(rect, paint);
- }
- }
- private:
- typedef Benchmark INHERITED;
- };
- // Exercise an Xfermode kSrcIn filter compositing two inputs which have a small intersection.
- class ImageFilterXfermodeIn : public Benchmark {
- public:
- ImageFilterXfermodeIn() {}
- protected:
- const char* onGetName() override { return "image_filter_xfermode_in"; }
- void onDraw(int loops, SkCanvas* canvas) override {
- for (int j = 0; j < loops; j++) {
- auto blur = SkBlurImageFilter::Make(20.0f, 20.0f, nullptr);
- auto offset1 = SkOffsetImageFilter::Make(100.0f, 100.0f, blur);
- auto offset2 = SkOffsetImageFilter::Make(-100.0f, -100.0f, blur);
- auto xfermode =
- SkXfermodeImageFilter::Make(SkBlendMode::kSrcIn, offset1, offset2, nullptr);
- SkPaint paint;
- paint.setImageFilter(xfermode);
- canvas->drawRect(SkRect::MakeWH(200.0f, 200.0f), paint);
- }
- }
- private:
- typedef Benchmark INHERITED;
- };
- DEF_BENCH(return new ImageFilterDAGBench;)
- DEF_BENCH(return new ImageMakeWithFilterDAGBench;)
- DEF_BENCH(return new ImageFilterDisplacedBlur;)
- DEF_BENCH(return new ImageFilterXfermodeIn;)
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