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/MagnifierBench.cpp b/bench/MagnifierBench.cpp
new file mode 100644
index 0000000..af507ac
--- /dev/null
+++ b/bench/MagnifierBench.cpp
@@ -0,0 +1,85 @@
+/*
+ * 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 "SkDevice.h"
+#include "SkMagnifierImageFilter.h"
+#include "SkRandom.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 MagnifierBench : public SkBenchmark {
+public:
+ MagnifierBench(void* param, bool small) :
+ INHERITED(param), fIsSmall(small), fInitialized(false) {
+ }
+
+protected:
+ virtual const char* onGetName() SK_OVERRIDE {
+ return fIsSmall ? "magnifier_small" : "magnifier_large";
+ }
+
+ virtual void onPreDraw() SK_OVERRIDE {
+ if (!fInitialized) {
+ make_checkerboard();
+ fInitialized = true;
+ }
+ }
+
+ virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
+ const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE;
+ SkPaint paint;
+ paint.setImageFilter(
+ new SkMagnifierImageFilter(
+ SkRect::MakeXYWH(SkIntToScalar(w / 4),
+ SkIntToScalar(h / 4),
+ SkIntToScalar(w / 2),
+ SkIntToScalar(h / 2)), 100))->unref();
+ canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
+ }
+
+private:
+ void make_checkerboard() {
+ const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
+ const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
+ fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
+ 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 < h; y += 16) {
+ for (int x = 0; x < w; 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 fCheckerboard;
+ typedef SkBenchmark INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+DEF_BENCH( return new MagnifierBench(p, true); )
+DEF_BENCH( return new MagnifierBench(p, false); )
+