Adding my Bitmap2Path sample for 1on1 meeting.
BUG=
R=reed@google.com, borenet@google.com
Author: dierk@google.com
Review URL: https://chromiumcodereview.appspot.com/16829003
git-svn-id: http://skia.googlecode.com/svn/trunk@9843 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/PathUtilsBench.cpp b/bench/PathUtilsBench.cpp
new file mode 100644
index 0000000..6cbbb31
--- /dev/null
+++ b/bench/PathUtilsBench.cpp
@@ -0,0 +1,79 @@
+/*
+ * 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 "SkBenchmark.h"
+#include "SkCanvas.h"
+#include "SkPathUtils.h"
+#include "SkRandom.h"
+#include "SkTime.h"
+#include "SkString.h"
+
+#define H 16
+#define W 16
+#define STRIDE 2
+
+//this function is redefined for sample, test, and bench. is there anywhere
+// I can put it to avoid code duplcation?
+static void fillRandomBits( int chars, char* bits ){
+ SkTime time;
+ SkMWCRandom rand = SkMWCRandom( time.GetMSecs() );
+
+ for (int i = 0; i < chars; ++i){
+ bits[i] = rand.nextU();
+ }
+}
+
+static void path_proc(char* bits, SkPath* path) {
+ SkPathUtils::BitsToPath_Path(path, bits, H, W, STRIDE);
+}
+
+static void region_proc(char* bits, SkPath* path) {
+ SkPathUtils::BitsToPath_Region(path, bits, H, W, STRIDE);
+}
+
+/// Emulates the mix of rects blitted by gmail during scrolling
+class PathUtilsBench : public SkBenchmark {
+ typedef void (*Proc)(char*, SkPath*);
+
+ Proc fProc;
+ int fH, fW, fStride;
+ SkString fName;
+ char* bits[H * STRIDE];
+
+ enum { N = SkBENCHLOOP(20) };
+
+public:
+ PathUtilsBench(void* param, Proc proc, const char name[]) : INHERITED(param) {
+ fProc = proc;
+ fName.printf("pathUtils_%s", name);
+
+
+ }
+
+protected:
+ virtual const char* onGetName() { return fName.c_str(); }
+
+ virtual void onDraw(SkCanvas* canvas) {
+
+ for (int i = 0; i < N; ++i){
+ //create a random 16x16 bitmap
+ fillRandomBits(H * STRIDE, (char*) &bits);
+
+ //use passed function pointer to handle it
+ SkPath path;
+ fProc( (char*) &bits, &path);
+ }
+ }
+
+private:
+ typedef SkBenchmark INHERITED;
+};
+
+static SkBenchmark* PU_path(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, path_proc, "path")); }
+static SkBenchmark* PU_region(void* p) { return SkNEW_ARGS(PathUtilsBench, (p, region_proc, "region")); }
+
+static BenchRegistry PU_Path(PU_path);
+static BenchRegistry PU_Region(PU_region);