diff options
Diffstat (limited to 'chromium/third_party/skia/bench/PathIterBench.cpp')
-rw-r--r-- | chromium/third_party/skia/bench/PathIterBench.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/chromium/third_party/skia/bench/PathIterBench.cpp b/chromium/third_party/skia/bench/PathIterBench.cpp new file mode 100644 index 00000000000..b82146d1b23 --- /dev/null +++ b/chromium/third_party/skia/bench/PathIterBench.cpp @@ -0,0 +1,95 @@ + +/* + * Copyright 2011 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#include "Benchmark.h" +#include "SkBitmap.h" +#include "SkCanvas.h" +#include "SkColorPriv.h" +#include "SkPaint.h" +#include "SkRandom.h" +#include "SkShader.h" +#include "SkString.h" + +static int rand_pts(SkRandom& rand, SkPoint pts[4]) { + int n = rand.nextU() & 3; + n += 1; + + for (int i = 0; i < n; ++i) { + pts[i].fX = rand.nextSScalar1(); + pts[i].fY = rand.nextSScalar1(); + } + return n; +} + +class PathIterBench : public Benchmark { + SkString fName; + SkPath fPath; + bool fRaw; + +public: + PathIterBench(bool raw) { + fName.printf("pathiter_%s", raw ? "raw" : "consume"); + fRaw = raw; + + SkRandom rand; + for (int i = 0; i < 1000; ++i) { + SkPoint pts[4]; + int n = rand_pts(rand, pts); + switch (n) { + case 1: + fPath.moveTo(pts[0]); + break; + case 2: + fPath.lineTo(pts[1]); + break; + case 3: + fPath.quadTo(pts[1], pts[2]); + break; + case 4: + fPath.cubicTo(pts[1], pts[2], pts[3]); + break; + } + } + } + + virtual bool isSuitableFor(Backend backend) SK_OVERRIDE { + return backend == kNonRendering_Backend; + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return fName.c_str(); + } + + virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE { + if (fRaw) { + for (int i = 0; i < loops; ++i) { + SkPath::RawIter iter(fPath); + SkPath::Verb verb; + SkPoint pts[4]; + + while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { } + } + } else { + for (int i = 0; i < loops; ++i) { + SkPath::Iter iter(fPath, false); + SkPath::Verb verb; + SkPoint pts[4]; + + while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { } + } + } + } + +private: + typedef Benchmark INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +DEF_BENCH( return new PathIterBench(false); ) +DEF_BENCH( return new PathIterBench(true); ) |