add bench for hairlines
git-svn-id: http://skia.googlecode.com/svn/trunk@6118 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/LineBench.cpp b/bench/LineBench.cpp
new file mode 100644
index 0000000..feaae2b
--- /dev/null
+++ b/bench/LineBench.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkBenchmark.h"
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkColorPriv.h"
+#include "SkPaint.h"
+#include "SkRandom.h"
+#include "SkShader.h"
+#include "SkString.h"
+#include "SkTArray.h"
+
+
+class LineBench : public SkBenchmark {
+ SkScalar fStrokeWidth;
+ bool fDoAA;
+ SkString fName;
+ enum {
+ PTS = 500,
+ N = SkBENCHLOOP(10)
+ };
+ SkPoint fPts[PTS];
+
+public:
+ LineBench(void* param, SkScalar width, bool doAA) : INHERITED(param) {
+ fStrokeWidth = width;
+ fDoAA = doAA;
+ fName.printf("lines_%g_%s", width, doAA ? "AA" : "BW");
+
+ SkRandom rand;
+ for (int i = 0; i < PTS; ++i) {
+ fPts[i].set(rand.nextUScalar1() * 640, rand.nextUScalar1() * 480);
+ }
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return fName.c_str();
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkPaint paint;
+ this->setupPaint(&paint);
+
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setAntiAlias(fDoAA);
+ paint.setStrokeWidth(fStrokeWidth);
+
+ for (int i = 0; i < N; i++) {
+ canvas->drawPoints(SkCanvas::kLines_PointMode, PTS, fPts, paint);
+ }
+ }
+
+private:
+ typedef SkBenchmark INHERITED;
+};
+
+DEF_BENCH(return new LineBench(p, 0, false);)
+DEF_BENCH(return new LineBench(p, SK_Scalar1, false);)
+DEF_BENCH(return new LineBench(p, 0, true);)
+DEF_BENCH(return new LineBench(p, SK_Scalar1/2, true);)
+DEF_BENCH(return new LineBench(p, SK_Scalar1, true);)