e5a141d0f6
This brings back the pow2 rectanizer for use with various ongoing atlas experiments. If we can further optimize the skyline rectanizer, then pow2 will be good to have around as a baseline comparison. And if skyline gets fast enough, then we can delete pow2 again. Change-Id: I79088c53fba7ba0d120534af99bee7840c135e42 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/290810 Reviewed-by: Robert Phillips <robertphillips@google.com> Commit-Queue: Chris Dalton <csmartdalton@google.com>
135 lines
4.5 KiB
C++
135 lines
4.5 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "bench/Benchmark.h"
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#include "include/core/SkSize.h"
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#include "include/private/SkTDArray.h"
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#include "include/utils/SkRandom.h"
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#include "src/gpu/GrRectanizerPow2.h"
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#include "src/gpu/GrRectanizerSkyline.h"
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/**
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* This bench exercises Ganesh' GrRectanizer classes. It exercises the following
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* rectanizers:
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* Pow2 Rectanizer
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* Skyline Rectanizer
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* in the following cases:
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* random rects (e.g., pull-save-layers forward use case)
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* random power of two rects
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* small constant sized power of 2 rects (e.g., glyph cache use case)
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*/
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class RectanizerBench : public Benchmark {
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public:
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static const int kWidth = 1024;
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static const int kHeight = 1024;
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enum RectanizerType {
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kPow2_RectanizerType,
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kSkyline_RectanizerType,
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};
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enum RectType {
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kRand_RectType,
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kRandPow2_RectType,
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kSmallPow2_RectType
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};
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RectanizerBench(RectanizerType rectanizerType, RectType rectType)
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: fName("rectanizer_")
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, fRectanizerType(rectanizerType)
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, fRectType(rectType) {
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if (kPow2_RectanizerType == fRectanizerType) {
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fName.append("pow2_");
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} else {
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SkASSERT(kSkyline_RectanizerType == fRectanizerType);
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fName.append("skyline_");
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}
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if (kRand_RectType == fRectType) {
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fName.append("rand");
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} else if (kRandPow2_RectType == fRectType) {
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fName.append("rand2");
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} else {
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SkASSERT(kSmallPow2_RectType == fRectType);
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fName.append("sm2");
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}
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}
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protected:
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bool isSuitableFor(Backend backend) override {
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return kNonRendering_Backend == backend;
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}
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const char* onGetName() override {
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return fName.c_str();
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}
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void onDelayedSetup() override {
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SkASSERT(nullptr == fRectanizer.get());
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if (kPow2_RectanizerType == fRectanizerType) {
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fRectanizer.reset(new GrRectanizerPow2(kWidth, kHeight));
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} else {
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SkASSERT(kSkyline_RectanizerType == fRectanizerType);
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fRectanizer.reset(new GrRectanizerSkyline(kWidth, kHeight));
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}
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}
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void onDraw(int loops, SkCanvas* canvas) override {
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SkRandom rand;
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SkIPoint16 loc;
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SkISize size;
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for (int i = 0; i < loops; ++i) {
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if (kRand_RectType == fRectType) {
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size = SkISize::Make(rand.nextRangeU(1, kWidth / 2),
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rand.nextRangeU(1, kHeight / 2));
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} else if (kRandPow2_RectType == fRectType) {
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size = SkISize::Make(GrNextPow2(rand.nextRangeU(1, kWidth / 2)),
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GrNextPow2(rand.nextRangeU(1, kHeight / 2)));
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} else {
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SkASSERT(kSmallPow2_RectType == fRectType);
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size = SkISize::Make(128, 128);
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}
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if (!fRectanizer->addRect(size.fWidth, size.fHeight, &loc)) {
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// insert failed so clear out the rectanizer and give the
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// current rect another try
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fRectanizer->reset();
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i--;
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}
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}
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fRectanizer->reset();
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}
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private:
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SkString fName;
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RectanizerType fRectanizerType;
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RectType fRectType;
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std::unique_ptr<GrRectanizer> fRectanizer;
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typedef Benchmark INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kPow2_RectanizerType,
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RectanizerBench::kRand_RectType);)
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kPow2_RectanizerType,
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RectanizerBench::kRandPow2_RectType);)
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kPow2_RectanizerType,
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RectanizerBench::kSmallPow2_RectType);)
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kSkyline_RectanizerType,
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RectanizerBench::kRand_RectType);)
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kSkyline_RectanizerType,
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RectanizerBench::kRandPow2_RectType);)
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DEF_BENCH(return new RectanizerBench(RectanizerBench::kSkyline_RectanizerType,
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RectanizerBench::kSmallPow2_RectType);)
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