tools/skpdiff/SkDifferentPixelsMetric.h

   1 /*
   2  * Copyright 2013 Google Inc.
   3  *
   4  * Use of this source code is governed by a BSD-style license that can be
   5  * found in the LICENSE file.
   6  */
   7
   8 #ifndef SkDifferentPixelsMetric_DEFINED
   9 #define SkDifferentPixelsMetric_DEFINED
  10
  11 #include "SkTDArray.h"
  12
  13 #if SK_SUPPORT_OPENCL
  14 #include "SkCLImageDiffer.h"
  15 #else
  16 #include "SkImageDiffer.h"
  17 #endif
  18
  19 /**
  20  * A differ that measures the percentage of different corresponding pixels. If the two images are
  21  * not the same size or have no pixels, the result will always be zero.
  22  */
  23 class SkDifferentPixelsMetric :
  24 #if SK_SUPPORT_OPENCL
  25     public SkCLImageDiffer {
  26 #else
  27     public SkImageDiffer {
  28 #endif
  29 public:
  30     const char* getName() const override;
  31     virtual bool diff(SkBitmap* baseline, SkBitmap* test,
  32                       const BitmapsToCreate& bitmapsToCreate,
  33                       Result* result) const override;
  34
  35 protected:
  36 #if SK_SUPPORT_OPENCL
  37     bool onInit() override;
  38 #endif
  39
  40 private:
  41 #if SK_SUPPORT_OPENCL
  42     cl_kernel fKernel;
  43
  44     typedef SkCLImageDiffer INHERITED;
  45 #else
  46     typedef SkImageDiffer INHERITED;
  47 #endif
  48 };
  49
  50 #endif