add benchmark for stroked drawRect/drawOval/drawRRect, to prepare for optimizing
those based on special-casing stroking for single-contour-convex shapes.
git-svn-id: http://skia.googlecode.com/svn/trunk@7537 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/StrokeBench.cpp b/bench/StrokeBench.cpp
new file mode 100644
index 0000000..b6bfaf7
--- /dev/null
+++ b/bench/StrokeBench.cpp
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2013 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 "SkCanvas.h"
+#include "SkPaint.h"
+#include "SkRRect.h"
+#include "SkString.h"
+
+struct RRectRec {
+ SkCanvas* fCanvas;
+ SkRRect fRRect;
+ SkPaint fPaint;
+};
+
+typedef const char* (*DrawProc)(const RRectRec*, int);
+
+static const char* draw_rect(const RRectRec* rec, int count) {
+ if (rec) {
+ const SkRect& r = rec->fRRect.getBounds();
+ for (int i = 0; i < count; ++i) {
+ rec->fCanvas->drawRect(r, rec->fPaint);
+ }
+ }
+ return "rect";
+}
+
+static const char* draw_rrect(const RRectRec* rec, int count) {
+ if (rec) {
+ for (int i = 0; i < count; ++i) {
+ rec->fCanvas->drawRRect(rec->fRRect, rec->fPaint);
+ }
+ }
+ return "rrect";
+}
+
+static const char* draw_oval(const RRectRec* rec, int count) {
+ if (rec) {
+ const SkRect& r = rec->fRRect.getBounds();
+ for (int i = 0; i < count; ++i) {
+ rec->fCanvas->drawOval(r, rec->fPaint);
+ }
+ }
+ return "oval";
+}
+
+// Handles rect, rrect, and oval
+//
+// Test drawing a small stroked version to see the effect of special-casing
+// our stroke code for these convex single-contour shapes.
+//
+class StrokeRRectBench : public SkBenchmark {
+ SkString fName;
+ SkPaint::Join fJoin;
+ RRectRec fRec;
+ DrawProc fProc;
+ enum { N = SkBENCHLOOP(500) };
+public:
+ StrokeRRectBench(void* param, SkPaint::Join j, DrawProc proc) : SkBenchmark(param) {
+ static const char* gJoinName[] = {
+ "miter", "round", "bevel"
+ };
+
+ fJoin = j;
+ fProc = proc;
+ fName.printf("draw_stroke_%s_%s", proc(NULL, 0), gJoinName[j]);
+
+ SkRect r = { 20, 20, 40, 40 };
+ SkScalar rad = 4;
+ fRec.fRRect.setRectXY(r, rad, rad);
+ }
+
+protected:
+ virtual const char* onGetName() {
+ return fName.c_str();
+ }
+
+ virtual void onDraw(SkCanvas* canvas) {
+ fRec.fCanvas = canvas;
+ this->setupPaint(&fRec.fPaint);
+ fRec.fPaint.setStyle(SkPaint::kStroke_Style);
+ fRec.fPaint.setStrokeJoin(fJoin);
+ fRec.fPaint.setStrokeWidth(5);
+ fProc(&fRec, N);
+ }
+
+private:
+ typedef SkBenchmark INHERITED;
+};
+
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kRound_Join, draw_rect); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kBevel_Join, draw_rect); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kMiter_Join, draw_rect); )
+
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kRound_Join, draw_rrect); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kBevel_Join, draw_rrect); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kMiter_Join, draw_rrect); )
+
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kRound_Join, draw_oval); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kBevel_Join, draw_oval); )
+DEF_BENCH( return new StrokeRRectBench(p, SkPaint::kMiter_Join, draw_oval); )