1 files changed, 49 insertions, 0 deletions
diff --git a/chromium/third_party/skia/tools/skpdiff/SkDifferentPixelsMetric.h b/chromium/third_party/skia/tools/skpdiff/SkDifferentPixelsMetric.h
new file mode 100644
index 00000000000..06c56b1cca2
--- /dev/null
+++ b/chromium/third_party/skia/tools/skpdiff/SkDifferentPixelsMetric.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkDifferentPixelsMetric_DEFINED
+#define SkDifferentPixelsMetric_DEFINED
+
+#include "SkTDArray.h"
+
+#if SK_SUPPORT_OPENCL
+#include "SkCLImageDiffer.h"
+#else
+#include "SkImageDiffer.h"
+#endif
+
+/**
+ * A differ that measures the percentage of different corresponding pixels. If the two images are
+ * not the same size or have no pixels, the result will always be zero.
+ */
+class SkDifferentPixelsMetric :
+#if SK_SUPPORT_OPENCL
+    public SkCLImageDiffer {
+#else
+    public SkImageDiffer {
+#endif
+public:
+    virtual const char* getName() const SK_OVERRIDE;
+    virtual bool diff(SkBitmap* baseline, SkBitmap* test, bool computeMask,
+                      Result* result) const SK_OVERRIDE;
+
+protected:
+#if SK_SUPPORT_OPENCL
+    virtual bool onInit() SK_OVERRIDE;
+#endif
+
+private:
+#if SK_SUPPORT_OPENCL
+    cl_kernel fKernel;
+
+    typedef SkCLImageDiffer INHERITED;
+#else
+    typedef SkImageDiffer INHERITED;
+#endif
+};
+
+#endif