1 files changed, 60 insertions, 0 deletions
diff --git a/chromium/third_party/skia/bench/MatrixConvolutionBench.cpp b/chromium/third_party/skia/bench/MatrixConvolutionBench.cpp
new file mode 100644
index 00000000000..6593ab02597
--- /dev/null
+++ b/chromium/third_party/skia/bench/MatrixConvolutionBench.cpp
@@ -0,0 +1,60 @@
+/*
+ * 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 "Benchmark.h"
+#include "SkCanvas.h"
+#include "SkMatrixConvolutionImageFilter.h"
+#include "SkPaint.h"
+#include "SkRandom.h"
+#include "SkString.h"
+
+class MatrixConvolutionBench : public Benchmark {
+public:
+    MatrixConvolutionBench(SkMatrixConvolutionImageFilter::TileMode tileMode, bool convolveAlpha)
+        : fName("matrixconvolution") {
+        SkISize kernelSize = SkISize::Make(3, 3);
+        SkScalar kernel[9] = {
+            SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
+            SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1),
+            SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
+        };
+        SkScalar gain = 0.3f, bias = SkIntToScalar(100);
+        SkIPoint kernelOffset = SkIPoint::Make(1, 1);
+        fFilter = SkMatrixConvolutionImageFilter::Create(kernelSize, kernel, gain, bias, kernelOffset, tileMode, convolveAlpha);
+    }
+
+    ~MatrixConvolutionBench() {
+        fFilter->unref();
+    }
+
+protected:
+    virtual const char* onGetName() {
+        return fName.c_str();
+    }
+
+    virtual void onDraw(const int loops, SkCanvas* canvas) {
+        SkPaint paint;
+        this->setupPaint(&paint);
+        paint.setAntiAlias(true);
+        SkRandom rand;
+        for (int i = 0; i < loops; i++) {
+            SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
+                                      rand.nextUScalar1() * 400);
+            paint.setImageFilter(fFilter);
+            canvas->drawOval(r, paint);
+        }
+    }
+
+private:
+    typedef Benchmark INHERITED;
+    SkMatrixConvolutionImageFilter* fFilter;
+    SkString fName;
+};
+
+DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClamp_TileMode, true); )
+DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kRepeat_TileMode, true); )
+DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, true); )
+DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, false); )