Added a few bench for some image filters
Review URL: https://codereview.chromium.org/14234019
git-svn-id: http://skia.googlecode.com/svn/trunk@8824 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/MergeBench.cpp b/bench/MergeBench.cpp
new file mode 100644
index 0000000..d74c4c2
--- /dev/null
+++ b/bench/MergeBench.cpp
@@ -0,0 +1,102 @@
+/*
+ * 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 "SkBitmapSource.h"
+#include "SkBlurImageFilter.h"
+#include "SkCanvas.h"
+#include "SkDevice.h"
+#include "SkMergeImageFilter.h"
+
+#define FILTER_WIDTH_SMALL SkIntToScalar(32)
+#define FILTER_HEIGHT_SMALL SkIntToScalar(32)
+#define FILTER_WIDTH_LARGE SkIntToScalar(256)
+#define FILTER_HEIGHT_LARGE SkIntToScalar(256)
+
+class MergeBench : public SkBenchmark {
+public:
+ MergeBench(void* param, bool small) : INHERITED(param), fIsSmall(small), fInitialized(false) {
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return fIsSmall ? "merge_small" : "merge_large";
+ }
+
+ virtual void onPreDraw() SK_OVERRIDE {
+ if (!fInitialized) {
+ make_bitmap();
+ make_checkerboard();
+ fInitialized = true;
+ }
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ SkRect r = fIsSmall ? SkRect::MakeWH(FILTER_WIDTH_SMALL, FILTER_HEIGHT_SMALL) :
+ SkRect::MakeWH(FILTER_WIDTH_LARGE, FILTER_HEIGHT_LARGE);
+ SkPaint paint;
+ paint.setImageFilter(mergeBitmaps())->unref();
+ canvas->drawRect(r, paint);
+ }
+
+private:
+ SkImageFilter* mergeBitmaps() {
+ SkImageFilter* first = new SkBitmapSource(fCheckerboard);
+ SkImageFilter* second = new SkBitmapSource(fBitmap);
+ SkAutoUnref aur0(first);
+ SkAutoUnref aur1(second);
+ return new SkMergeImageFilter(first, second);
+ }
+
+ void make_bitmap() {
+ fBitmap.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
+ fBitmap.allocPixels();
+ SkDevice device(fBitmap);
+ SkCanvas canvas(&device);
+ canvas.clear(0x00000000);
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setColor(0xFF884422);
+ paint.setTextSize(SkIntToScalar(96));
+ const char* str = "g";
+ canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
+ }
+
+ void make_checkerboard() {
+ fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, 80, 80);
+ fCheckerboard.allocPixels();
+ SkDevice device(fCheckerboard);
+ SkCanvas canvas(&device);
+ canvas.clear(0x00000000);
+ SkPaint darkPaint;
+ darkPaint.setColor(0xFF804020);
+ SkPaint lightPaint;
+ lightPaint.setColor(0xFF244484);
+ for (int y = 0; y < 80; y += 16) {
+ for (int x = 0; x < 80; x += 16) {
+ canvas.save();
+ canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
+ canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
+ canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
+ canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
+ canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
+ canvas.restore();
+ }
+ }
+ }
+
+ bool fIsSmall;
+ bool fInitialized;
+ SkBitmap fBitmap, fCheckerboard;
+
+ typedef SkBenchmark INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+DEF_BENCH( return new MergeBench(p, true); )
+DEF_BENCH( return new MergeBench(p, false); )
+