75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
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/*
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* Copyright 2020 Google LLC
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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/utils/SkRandom.h"
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#include "src/gpu/geometry/GrQuad.h"
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#include "src/gpu/geometry/GrQuadUtils.h"
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class GrQuadBoundsBench : public Benchmark {
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public:
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GrQuadBoundsBench(bool perspective)
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: fPerspective(perspective) {
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fName.printf("grquad_bounds_%s", perspective ? "3d" : "2d");
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}
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bool isSuitableFor(Backend backend) override {
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return backend == kNonRendering_Backend;
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}
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protected:
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static constexpr int kQuadCount = 1000;
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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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SkRandom r;
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for (int i = 0; i < kQuadCount; ++i) {
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for (int j = 0; j < 4; ++j) {
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fQuads[i].xs()[j] = r.nextRangeF(-100.f, 100.f);
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fQuads[i].ys()[j] = r.nextRangeF(-100.f, 100.f);
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if (fPerspective) {
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// Biased towards in front of the viewpoint, but do include some that require
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// the vertices to be clipped against w = 0.
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fQuads[i].ws()[j] = r.nextRangeF(-1.f, 10.f);
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} else {
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fQuads[i].ws()[j] = 1.f;
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}
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}
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fQuads[i].setQuadType(fPerspective ? GrQuad::Type::kPerspective
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: GrQuad::Type::kGeneral);
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}
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}
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void onDraw(int loops, SkCanvas*) override {
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SkScalar area = 0.f;
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for (int i = 0; i < loops; ++i) {
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for (int j = 0; j < kQuadCount; ++j) {
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SkRect qb = fQuads[j].bounds();
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area += qb.width() + qb.height();
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}
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}
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// Must persist this calculation in order to prevent the compiler from optimizing the
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// loops away.
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fArea = area;
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}
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SkString fName;
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bool fPerspective;
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GrQuad fQuads[kQuadCount];
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SkScalar fArea;
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new GrQuadBoundsBench(/* persp */ false); )
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DEF_BENCH( return new GrQuadBoundsBench(/* persp */ true); )
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