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Diffstat (limited to 'bench/MeasureBench.cpp')
-rw-r--r-- | bench/MeasureBench.cpp | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/bench/MeasureBench.cpp b/bench/MeasureBench.cpp new file mode 100644 index 0000000000..1b0ec21dc9 --- /dev/null +++ b/bench/MeasureBench.cpp @@ -0,0 +1,177 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +// for std::max +#include <algorithm> + +#include "Benchmark.h" +#include "SkCurveMeasure.h" +#include "SkPath.h" +#include "SkPathMeasure.h" +#include "SkString.h" + +#define NORMALIZE_LOOPS + +class MeasureBench : public Benchmark { + protected: + SkString fName; + + SkPath fPath; + + bool fUsePathMeasure; + float fSize; + size_t fPieces; + + SkPoint fPts[3]; + + public: + MeasureBench(bool usePathMeasure, float size, size_t pieces) + : fUsePathMeasure(usePathMeasure), + fSize(size), + fPieces(pieces) { + fName.printf("measure_%s_%.1f_" SK_SIZE_T_SPECIFIER, + fUsePathMeasure ? "pathMeasure" : "curveMeasure", fSize, + fPieces); + + auto p1 = SkPoint::Make(0, 0); + auto p2 = SkPoint::Make(30*fSize, 0); + auto p3 = SkPoint::Make(15*fSize, 15*fSize); + + fPts[0] = p1; + fPts[1] = p2; + fPts[2] = p3; + + this->setPath(); + } + + protected: + const char* onGetName() override { return fName.c_str(); } + + void setPath() { + fPath.moveTo(fPts[0]); + fPath.quadTo(fPts[1], fPts[2]); + } + + int numLoops() { +#ifdef NORMALIZE_LOOPS + // arbitrary heuristic + return std::max(2, 10000 / ((int)fSize*(int)fPieces)); +#else + return 1000; +#endif // NORMALIZE_LOOPS + } + + //// measurement code + + void do_pathMeasure(SkCanvas* canvas) { + SkPathMeasure meas(fPath, false); + + SkScalar totalLength = meas.getLength(); + SkScalar pieceLength = totalLength / fPieces; + + SkPoint point; + for (size_t i = 0; i <= fPieces; i++) { + if (meas.getPosTan(i * pieceLength, &point, nullptr)) { + }; + } + } + + void do_curveMeasure(SkCanvas* canvas) { + SkCurveMeasure meas(fPts, kQuad_SegType); + + SkScalar totalLength = meas.getLength(); + SkScalar pieceLength = totalLength / fPieces; + + SkPoint point; + for (size_t i = 0; i <= fPieces; i++) { + meas.getPosTanTime(i*pieceLength, &point, nullptr, nullptr); + } + } + + void onDraw(int loops, SkCanvas* canvas) override { + int inner_loops = numLoops(); + for (int i = 0; i < loops; i++) { + for (int j = 0; j < inner_loops; j++) { + if (fUsePathMeasure) { + do_pathMeasure(canvas); + } + else { + do_curveMeasure(canvas); + } + } + } + } + + private: + typedef Benchmark INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +DEF_BENCH(return new MeasureBench(true, 1, 2);) +DEF_BENCH(return new MeasureBench(true, 2, 2);) +DEF_BENCH(return new MeasureBench(true, 10, 2);) +DEF_BENCH(return new MeasureBench(true, 100, 2);) +DEF_BENCH(return new MeasureBench(true, 1000, 2);) + +DEF_BENCH(return new MeasureBench(true, 1, 1);) +DEF_BENCH(return new MeasureBench(true, 1, 2);) +DEF_BENCH(return new MeasureBench(true, 1, 3);) +DEF_BENCH(return new MeasureBench(true, 1, 4);) +DEF_BENCH(return new MeasureBench(true, 1, 5);) +DEF_BENCH(return new MeasureBench(true, 2, 1);) +DEF_BENCH(return new MeasureBench(true, 2, 2);) +DEF_BENCH(return new MeasureBench(true, 2, 3);) +DEF_BENCH(return new MeasureBench(true, 2, 4);) +DEF_BENCH(return new MeasureBench(true, 2, 5);) +DEF_BENCH(return new MeasureBench(true, 10, 10);) +DEF_BENCH(return new MeasureBench(true, 10, 20);) +DEF_BENCH(return new MeasureBench(true, 10, 30);) +DEF_BENCH(return new MeasureBench(true, 10, 40);) +DEF_BENCH(return new MeasureBench(true, 10, 50);) +DEF_BENCH(return new MeasureBench(true, 100, 100);) +DEF_BENCH(return new MeasureBench(true, 100, 200);) +DEF_BENCH(return new MeasureBench(true, 100, 300);) +DEF_BENCH(return new MeasureBench(true, 100, 400);) +DEF_BENCH(return new MeasureBench(true, 100, 500);) +DEF_BENCH(return new MeasureBench(true, 1000, 1000);) +DEF_BENCH(return new MeasureBench(true, 1000, 2000);) +DEF_BENCH(return new MeasureBench(true, 1000, 3000);) +DEF_BENCH(return new MeasureBench(true, 1000, 4000);) +DEF_BENCH(return new MeasureBench(true, 1000, 5000);) + +DEF_BENCH(return new MeasureBench(false, 1, 2);) +DEF_BENCH(return new MeasureBench(false, 2, 2);) +DEF_BENCH(return new MeasureBench(false, 10, 2);) +DEF_BENCH(return new MeasureBench(false, 100, 2);) +DEF_BENCH(return new MeasureBench(false, 1000, 2);) + +DEF_BENCH(return new MeasureBench(false, 1, 1);) +DEF_BENCH(return new MeasureBench(false, 1, 2);) +DEF_BENCH(return new MeasureBench(false, 1, 3);) +DEF_BENCH(return new MeasureBench(false, 1, 4);) +DEF_BENCH(return new MeasureBench(false, 1, 5);) +DEF_BENCH(return new MeasureBench(false, 2, 1);) +DEF_BENCH(return new MeasureBench(false, 2, 2);) +DEF_BENCH(return new MeasureBench(false, 2, 3);) +DEF_BENCH(return new MeasureBench(false, 2, 4);) +DEF_BENCH(return new MeasureBench(false, 2, 5);) +DEF_BENCH(return new MeasureBench(false, 10, 10);) +DEF_BENCH(return new MeasureBench(false, 10, 20);) +DEF_BENCH(return new MeasureBench(false, 10, 30);) +DEF_BENCH(return new MeasureBench(false, 10, 40);) +DEF_BENCH(return new MeasureBench(false, 10, 50);) +DEF_BENCH(return new MeasureBench(false, 100, 100);) +DEF_BENCH(return new MeasureBench(false, 100, 200);) +DEF_BENCH(return new MeasureBench(false, 100, 300);) +DEF_BENCH(return new MeasureBench(false, 100, 400);) +DEF_BENCH(return new MeasureBench(false, 100, 500);) +DEF_BENCH(return new MeasureBench(false, 1000, 1000);) +DEF_BENCH(return new MeasureBench(false, 1000, 2000);) +DEF_BENCH(return new MeasureBench(false, 1000, 3000);) +DEF_BENCH(return new MeasureBench(false, 1000, 4000);) +DEF_BENCH(return new MeasureBench(false, 1000, 5000);) |