Add m-esr52 at 52.6.0

1 files changed, 2585 insertions, 0 deletions

diff --git a/dom/canvas/gtest/TestImageBitmapColorUtils.cpp b/dom/canvas/gtest/TestImageBitmapColorUtils.cpp
new file mode 100644
index 000000000..85ebe42ce
--- /dev/null
+++ b/dom/canvas/gtest/TestImageBitmapColorUtils.cpp
@@ -0,0 +1,2585 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+#include "ImageBitmapColorUtils.h"
+#include "mozilla/dom/ImageBitmapBinding.h"
+#include "libyuv.h"
+
+using namespace mozilla::dom;
+
+template<typename T>
+class Image {
+public:
+  explicit Image(int aChannelCount)
+  : mChannelCount(aChannelCount), mData(nullptr)
+  {
+  }
+
+  virtual ~Image() {
+    if (mData) delete[] mData;
+  }
+
+  int mChannelCount;
+  T* mData;
+};
+
+template<typename T>
+class SimpleImage : public Image<T>
+{
+public:
+  SimpleImage(int aWidth, int aHeight, int aChannelCount)
+  : Image<T>(aChannelCount)
+  , mWidth(aWidth)
+  , mHeight(aHeight)
+  , mStride(aWidth * aChannelCount * sizeof(T))
+  {
+    Image<T>::mData = new T[mHeight * mStride];
+  }
+
+  virtual ~SimpleImage() {}
+
+  T GetPixelValue(int i, int j, int c) const
+  {
+    // The unit of mStride is byte.
+    const uint8_t* data = (const uint8_t*)Image<T>::mData;
+    return *((T*)(data + i * mStride) + j * Image<T>::mChannelCount + c);
+  }
+
+  int mWidth;
+  int mHeight;
+  int mStride;
+};
+
+class RGBA32DataSinglePixel : public SimpleImage<uint8_t> {
+public:
+  RGBA32DataSinglePixel(int r, int g, int b, int a)
+  : SimpleImage(1, 1, 4)
+  {
+    mData[0] = r;
+    mData[1] = g;
+    mData[2] = b;
+    mData[3] = a;
+  }
+};
+
+class RGB24Data : public SimpleImage<uint8_t> {
+public:
+  RGB24Data()
+  : SimpleImage(3, 3, 3)
+  {
+    int i = 0;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 0;
+    mData[i + 3] = 255; mData[i + 4] = 0;   mData[i + 5] = 0;
+    mData[i + 6] = 0;   mData[i + 7] = 255; mData[i + 8] = 0;
+
+    i = 1 * mStride;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 255;
+    mData[i + 3] = 255; mData[i + 4] = 255; mData[i + 5] = 0;
+    mData[i + 6] = 0;   mData[i + 7] = 255; mData[i + 8] = 255;
+
+    i = 2 * mStride;
+    mData[i + 0] = 255; mData[i + 1] = 0;   mData[i + 2] = 255;
+    mData[i + 3] = 255; mData[i + 4] = 255; mData[i + 5] = 255;
+    mData[i + 6] = 128; mData[i + 7] = 128; mData[i + 8] = 128;
+  }
+};
+
+class BGR24Data : public SimpleImage<uint8_t> {
+public:
+  BGR24Data()
+  : SimpleImage(3, 3, 3)
+  {
+    int i = 0;
+    mData[i + 2] = 0;   mData[i + 1] = 0;   mData[i + 0] = 0;
+    mData[i + 5] = 255; mData[i + 4] = 0;   mData[i + 3] = 0;
+    mData[i + 8] = 0;   mData[i + 7] = 255; mData[i + 6] = 0;
+
+    i = 1 * mStride;
+    mData[i + 2] = 0;   mData[i + 1] = 0;   mData[i + 0] = 255;
+    mData[i + 5] = 255; mData[i + 4] = 255; mData[i + 3] = 0;
+    mData[i + 8] = 0;   mData[i + 7] = 255; mData[i + 6] = 255;
+
+    i = 2 * mStride;
+    mData[i + 2] = 255; mData[i + 1] = 0;   mData[i + 0] = 255;
+    mData[i + 5] = 255; mData[i + 4] = 255; mData[i + 3] = 255;
+    mData[i + 8] = 128; mData[i + 7] = 128; mData[i + 6] = 128;
+  }
+};
+
+class RGBA32Data : public SimpleImage<uint8_t> {
+public:
+  RGBA32Data()
+  : SimpleImage(3, 3, 4)
+  {
+    int i = 0;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 0;   mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 0;   mData[i + 6] = 0;   mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 255; mData[i + 10] = 0;  mData[i + 11] = 255;
+
+    i = 1 * mStride;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 255;  mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 255; mData[i + 6] = 0;    mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 255; mData[i + 10] = 255; mData[i + 11] = 255;
+
+    i = 2 * mStride;
+    mData[i + 0] = 255; mData[i + 1] = 0;   mData[i + 2] = 255;  mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 255; mData[i + 6] = 255;  mData[i + 7] = 255;
+    mData[i + 8] = 128; mData[i + 9] = 128; mData[i + 10] = 128; mData[i + 11] = 255;
+  }
+};
+
+class BGRA32Data : public SimpleImage<uint8_t> {
+public:
+  BGRA32Data()
+  : SimpleImage(3, 3, 4)
+  {
+    int i = 0;
+    mData[i + 2] = 0;   mData[i + 1] = 0;   mData[i + 0] = 0;   mData[i + 3] = 255;
+    mData[i + 6] = 255; mData[i + 5] = 0;   mData[i + 4] = 0;   mData[i + 7] = 255;
+    mData[i + 10] = 0;  mData[i + 9] = 255; mData[i + 8] = 0;   mData[i + 11] = 255;
+
+    i = 1 * mStride;
+    mData[i + 2] = 0;   mData[i + 1] = 0;   mData[i + 0] = 255;  mData[i + 3] = 255;
+    mData[i + 6] = 255; mData[i + 5] = 255; mData[i + 4] = 0;    mData[i + 7] = 255;
+    mData[i + 10] = 0;  mData[i + 9] = 255; mData[i + 8] = 255;  mData[i + 11] = 255;
+
+    i = 2 * mStride;
+    mData[i + 2] = 255;  mData[i + 1] = 0;   mData[i + 0] = 255; mData[i + 3] = 255;
+    mData[i + 6] = 255;  mData[i + 5] = 255; mData[i + 4] = 255; mData[i + 7] = 255;
+    mData[i + 10] = 128; mData[i + 9] = 128; mData[i + 8] = 128; mData[i + 11] = 255;
+  }
+};
+
+class RGBA32Image : public SimpleImage<uint8_t>
+{
+public:
+  RGBA32Image(int aWidth, int aHeight, int aChannelCount)
+  : SimpleImage(aWidth, aHeight, aChannelCount)
+  {}
+
+  const uint8_t* GetPixel(int x, int y) const {
+    return mData + mStride * y + x * mChannelCount;
+  }
+};
+
+class RGBA32DataFromYUV444PData : public RGBA32Image {
+public:
+  RGBA32DataFromYUV444PData()
+  : RGBA32Image(3, 3, 4)
+  {
+//    libyuv: (16, 128, 128) --> (0, 0, 0, 255)
+//    libyuv: (82, 90, 240) --> (254, 0, 0, 255)
+//    libyuv: (144, 54, 34) --> (0, 253, 1, 255)
+//    libyuv: (41, 240, 110) --> (0, 0, 251, 255)
+//    libyuv: (210, 16, 146) --> (253, 253, 2, 255)
+//    libyuv: (169, 166, 16) --> (0, 253, 252, 255)
+//    libyuv: (107, 202, 222) --> (255, 0, 252, 255)
+//    libyuv: (235, 128, 128) --> (253, 253, 253, 255)
+//    libyuv: (126, 128, 128) --> (127, 127, 127, 255)
+
+    int i = 0;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 0;    mData[i + 3] = 255;
+    mData[i + 4] = 254; mData[i + 5] = 0;   mData[i + 6] = 0;    mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 253; mData[i + 10] = 1;   mData[i + 11] = 255;
+
+    i = 1 * mStride;
+    mData[i + 0] = 0;   mData[i + 1] = 0;   mData[i + 2] = 251;  mData[i + 3] = 255;
+    mData[i + 4] = 253; mData[i + 5] = 253; mData[i + 6] = 2;    mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 253; mData[i + 10] = 252; mData[i + 11] = 255;
+
+    i = 2 * mStride;
+    mData[i + 0] = 255; mData[i + 1] = 0;   mData[i + 2] = 252;  mData[i + 3] = 255;
+    mData[i + 4] = 253; mData[i + 5] = 253; mData[i + 6] = 253;  mData[i + 7] = 255;
+    mData[i + 8] = 127; mData[i + 9] = 127; mData[i + 10] = 127; mData[i + 11] = 255;
+  }
+};
+
+class RGBA32DataFromYUV422PData : public RGBA32Image {
+public:
+  RGBA32DataFromYUV422PData()
+  : RGBA32Image(3, 3, 4)
+  {
+//    libyuv: (16, 109, 184) --> (89, 0, 0, 255)
+//    libyuv: (82, 109, 184) --> (165, 38, 38, 255)
+//    libyuv: (144, 54, 34) --> (0, 253, 1, 255)
+//    libyuv: (41, 128, 128) --> (28, 28, 28, 255)
+//    libyuv: (210, 128, 128) --> (224, 224, 224, 255)
+//    libyuv: (169, 166, 16) --> (0, 253, 252, 255)
+//    libyuv: (107, 165, 175) --> (180, 52, 178, 255)
+//    libyuv: (235, 165, 175) --> (255, 200, 255, 255)
+//    libyuv: (126, 128, 128) --> (127, 127, 127, 255)
+
+    int i = 0;
+    mData[i + 0] = 89;  mData[i + 1] = 0;   mData[i + 2] = 0;    mData[i + 3] = 255;
+    mData[i + 4] = 165; mData[i + 5] = 38;  mData[i + 6] = 38;   mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 253; mData[i + 10] = 1;   mData[i + 11] = 255;
+
+    i = 1 * mStride;
+    mData[i + 0] = 28;  mData[i + 1] = 28;  mData[i + 2] = 28;   mData[i + 3] = 255;
+    mData[i + 4] = 224; mData[i + 5] = 224; mData[i + 6] = 224;  mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 253; mData[i + 10] = 252; mData[i + 11] = 255;
+
+    i = 2 * mStride;
+    mData[i + 0] = 180; mData[i + 1] = 52;  mData[i + 2] = 178;  mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 200; mData[i + 6] = 255;  mData[i + 7] = 255;
+    mData[i + 8] = 127; mData[i + 9] = 127; mData[i + 10] = 127; mData[i + 11] = 255;
+  }
+};
+
+class RGBA32DataFromYUV420PData : public RGBA32Image {
+public:
+  RGBA32DataFromYUV420PData()
+  : RGBA32Image(3, 3, 4)
+  {
+//    libyuv: (16, 119, 156) --> (44, 0, 0, 255)
+//    libyuv: (82, 119, 156) --> (120, 57, 58, 255)
+//    libyuv: (144, 110, 25) --> (0, 238, 112, 255)
+//    libyuv: (41, 119, 156) --> (73, 9, 11, 255)
+//    libyuv: (210, 119, 156) --> (255, 205, 206, 255)
+//    libyuv: (169, 110, 25) --> (12, 255, 141, 255)
+//    libyuv: (107, 165, 175) --> (180, 52, 178, 255)
+//    libyuv: (235, 165, 175) --> (255, 200, 255, 255)
+//    libyuv: (126, 128, 128) --> (127, 127, 127, 255)
+
+    int i = 0;
+    mData[i + 0] = 44;  mData[i + 1] = 0;   mData[i + 2] = 0;    mData[i + 3] = 255;
+    mData[i + 4] = 120; mData[i + 5] = 57;  mData[i + 6] = 58;   mData[i + 7] = 255;
+    mData[i + 8] = 0;   mData[i + 9] = 238; mData[i + 10] = 112;   mData[i + 11] = 255;
+
+    i = 1 * mStride;
+    mData[i + 0] = 73;  mData[i + 1] = 9;  mData[i + 2] = 11;   mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 205; mData[i + 6] = 206;  mData[i + 7] = 255;
+    mData[i + 8] = 12;   mData[i + 9] = 255; mData[i + 10] = 141; mData[i + 11] = 255;
+
+    i = 2 * mStride;
+    mData[i + 0] = 180; mData[i + 1] = 52;  mData[i + 2] = 178;  mData[i + 3] = 255;
+    mData[i + 4] = 255; mData[i + 5] = 200; mData[i + 6] = 255;  mData[i + 7] = 255;
+    mData[i + 8] = 127; mData[i + 9] = 127; mData[i + 10] = 127; mData[i + 11] = 255;
+  }
+};
+
+class GrayData : public SimpleImage<uint8_t> {
+public:
+  GrayData()
+  : SimpleImage(3, 3, 1)
+  {
+    int i = 0;
+    mData[i + 0] = 0;   mData[i + 1] = 76;   mData[i + 2] = 149;
+
+    i = 1 * mStride;
+    mData[i + 0] = 29;   mData[i + 1] = 225;   mData[i + 2] = 178;
+
+    i = 2 * mStride;
+    mData[i + 0] = 105; mData[i + 1] = 255;   mData[i + 2] = 127;
+  }
+};
+
+class YUVImage : public Image<uint8_t>
+{
+public:
+  YUVImage(int aYWidth, int aYHeight, int aYStride,
+           int aUWidth, int aUHeight, int aUStride,
+           int aVWidth, int aVHeight, int aVStride)
+  : Image(3)
+  , mYWidth(aYWidth), mYHeight(aYHeight), mYStride(aYStride)
+  , mUWidth(aUWidth), mUHeight(aUHeight), mUStride(aUStride)
+  , mVWidth(aVWidth), mVHeight(aVHeight), mVStride(aVStride)
+  {
+    mData = new uint8_t[mYHeight * mYStride + mUHeight * mUStride + mVHeight * mVStride];
+  }
+
+  uint8_t* YBuffer() const { return mData; }
+  uint8_t* UBuffer() const { return YBuffer() + mYHeight * mYStride; }
+  uint8_t* VBuffer() const { return UBuffer() + mUHeight * mUStride; }
+
+  int mYWidth;
+  int mYHeight;
+  int mYStride;
+  int mUWidth;
+  int mUHeight;
+  int mUStride;
+  int mVWidth;
+  int mVHeight;
+  int mVStride;
+};
+
+class NVImage : public Image<uint8_t>
+{
+public:
+  NVImage(int aYWidth, int aYHeight, int aYStride,
+          int aUVWidth, int aUVHeight, int aUVStride)
+  : Image(3)
+  , mYWidth(aYWidth), mYHeight(aYHeight), mYStride(aYStride)
+  , mUVWidth(aUVWidth), mUVHeight(aUVHeight), mUVStride(aUVStride)
+  {
+    mData = new uint8_t[mYHeight * mYStride + mUVHeight * mUVStride];
+  }
+
+  uint8_t* YBuffer() const { return mData; }
+  uint8_t* UVBuffer() const { return YBuffer() + mYHeight * mYStride; }
+
+  int mYWidth;
+  int mYHeight;
+  int mYStride;
+  int mUVWidth;
+  int mUVHeight;
+  int mUVStride;
+};
+
+class YUV444PData : public YUVImage
+{
+public:
+  YUV444PData()
+  :YUVImage(3, 3, 3, 3, 3, 3, 3, 3, 3)
+  {
+//    libyuv: (0, 0, 0) --> (16, 128, 128)
+//    libyuv: (255, 0, 0) --> (82, 90, 240)
+//    libyuv: (0, 255, 0) --> (144, 54, 34)
+//    libyuv: (0, 0, 255) --> (41, 240, 110)
+//    libyuv: (255, 255, 0) --> (210, 16, 146)
+//    libyuv: (0, 255, 255) --> (169, 166, 16)
+//    libyuv: (255, 0, 255) --> (107, 202, 222)
+//    libyuv: (255, 255, 255) --> (235, 128, 128)
+//    libyuv: (128, 128, 128) --> (126, 128, 128)
+
+    YBuffer()[0] = 16;  YBuffer()[1] = 82;  YBuffer()[2] = 144;
+    YBuffer()[3] = 41;  YBuffer()[4] = 210; YBuffer()[5] = 169;
+    YBuffer()[6] = 107; YBuffer()[7] = 235; YBuffer()[8] = 126;
+
+    UBuffer()[0] = 128; UBuffer()[1] = 90;  UBuffer()[2] = 54;
+    UBuffer()[3] = 240; UBuffer()[4] = 16;  UBuffer()[5] = 166;
+    UBuffer()[6] = 202; UBuffer()[7] = 128; UBuffer()[8] = 128;
+
+    VBuffer()[0] = 128; VBuffer()[1] = 240; VBuffer()[2] = 34;
+    VBuffer()[3] = 110; VBuffer()[4] = 146; VBuffer()[5] = 16;
+    VBuffer()[6] = 222; VBuffer()[7] = 128; VBuffer()[8] = 128;
+  }
+};
+
+class YUV422PData : public YUVImage
+{
+public:
+  YUV422PData()
+  :YUVImage(3, 3, 3, 2, 3, 2, 2, 3, 2)
+  {
+    YBuffer()[0] = 16;  YBuffer()[1] = 82;  YBuffer()[2] = 144;
+    YBuffer()[3] = 41;  YBuffer()[4] = 210; YBuffer()[5] = 169;
+    YBuffer()[6] = 107; YBuffer()[7] = 235; YBuffer()[8] = 126;
+
+    UBuffer()[0] = 109; UBuffer()[1] = 54;
+    UBuffer()[2] = 128; UBuffer()[3] = 166;
+    UBuffer()[4] = 165; UBuffer()[5] = 128;
+
+    VBuffer()[0] = 184; VBuffer()[1] = 34;
+    VBuffer()[2] = 128; VBuffer()[3] = 16;
+    VBuffer()[4] = 175; VBuffer()[5] = 128;
+  }
+};
+
+class YUV420PData : public YUVImage
+{
+public:
+  YUV420PData()
+  :YUVImage(3, 3, 3, 2, 2, 2, 2, 2, 2)
+  {
+    YBuffer()[0] = 16;  YBuffer()[1] = 82;  YBuffer()[2] = 144;
+    YBuffer()[3] = 41;  YBuffer()[4] = 210; YBuffer()[5] = 169;
+    YBuffer()[6] = 107; YBuffer()[7] = 235; YBuffer()[8] = 126;
+
+    UBuffer()[0] = 119; UBuffer()[1] = 110;
+    UBuffer()[2] = 165; UBuffer()[3] = 128;
+
+    VBuffer()[0] = 156; VBuffer()[1] = 25;
+    VBuffer()[2] = 175; VBuffer()[3] = 128;
+  }
+};
+
+class NV12Data : public NVImage
+{
+public:
+  NV12Data()
+  :NVImage(3, 3, 3, 2, 2, 4)
+  {
+    YBuffer()[0] = 16;  YBuffer()[1] = 82;  YBuffer()[2] = 144;
+    YBuffer()[3] = 41;  YBuffer()[4] = 210; YBuffer()[5] = 169;
+    YBuffer()[6] = 107; YBuffer()[7] = 235; YBuffer()[8] = 126;
+
+    // U
+    UVBuffer()[0] = 119;
+    UVBuffer()[2] = 110;
+    UVBuffer()[4] = 165;
+    UVBuffer()[6] = 128;
+
+    // V
+    UVBuffer()[1] = 156;
+    UVBuffer()[3] = 25;
+    UVBuffer()[5] = 175;
+    UVBuffer()[7] = 128;
+  }
+};
+
+class NV21Data : public NVImage
+{
+public:
+  NV21Data()
+  :NVImage(3, 3, 3, 2, 2, 4)
+  {
+    YBuffer()[0] = 16;  YBuffer()[1] = 82;  YBuffer()[2] = 144;
+    YBuffer()[3] = 41;  YBuffer()[4] = 210; YBuffer()[5] = 169;
+    YBuffer()[6] = 107; YBuffer()[7] = 235; YBuffer()[8] = 126;
+
+    // U
+    UVBuffer()[1] = 119;
+    UVBuffer()[3] = 110;
+    UVBuffer()[5] = 165;
+    UVBuffer()[7] = 128;
+
+    // V
+    UVBuffer()[0] = 156;
+    UVBuffer()[2] = 25;
+    UVBuffer()[4] = 175;
+    UVBuffer()[6] = 128;
+  }
+};
+
+class HSVData : public SimpleImage<float>
+{
+public:
+  HSVData()
+  : SimpleImage(3, 3, 3)
+  {
+    int i = 0;
+    mData[i + 0] = 0.0f;   mData[i + 1] = 0.0f; mData[i + 2] = 0.0f;
+    mData[i + 3] = 0.0f;   mData[i + 4] = 1.0f; mData[i + 5] = 1.0f;
+    mData[i + 6] = 120.0f; mData[i + 7] = 1.0f; mData[i + 8] = 1.0f;
+
+    i += mWidth * mChannelCount;
+    mData[i + 0] = 240.0f; mData[i + 1] = 1.0f; mData[i + 2] = 1.0f;
+    mData[i + 3] = 60.0f;  mData[i + 4] = 1.0f; mData[i + 5] = 1.0f;
+    mData[i + 6] = 180.0f; mData[i + 7] = 1.0f; mData[i + 8] = 1.0f;
+
+    i += mWidth * mChannelCount;
+    mData[i + 0] = 300.0f; mData[i + 1] = 1.0f; mData[i + 2] = 1.0f;
+    mData[i + 3] = 0.0f;   mData[i + 4] = 0.0f; mData[i + 5] = 1.0f;
+    mData[i + 6] = 0.0f;   mData[i + 7] = 0.0f; mData[i + 8] = 0.50196081f;
+  }
+};
+
+class LabData : public SimpleImage<float>
+{
+public:
+  LabData()
+  : SimpleImage(3, 3, 3)
+  {
+    int i = 0;
+    mData[i + 0] = 0.0f;        mData[i + 1] = 0.0f;         mData[i + 2] = 0.0f;
+    mData[i + 3] = 53.240585f;  mData[i + 4] = 80.094185f;   mData[i + 5] = 67.201538f;
+    mData[i + 6] = 87.7351f;    mData[i + 7] = -86.181252f;  mData[i + 8] = 83.177483f;
+
+    i += mWidth * mChannelCount;
+    mData[i + 0] = 32.29567f;   mData[i + 1] = 79.186989f;   mData[i + 2] = -107.86176f;
+    mData[i + 3] = 97.139511f;  mData[i + 4] = -21.552414f;  mData[i + 5] = 94.475792f;
+    mData[i + 6] = 91.113297f;  mData[i + 7] = -48.088551f;  mData[i + 8] = -14.130962f;
+
+    i += mWidth * mChannelCount;
+    mData[i + 0] = 60.323502f;  mData[i + 1] = 98.235161f;   mData[i + 2] = -60.825493f;
+    mData[i + 3] = 100.0f;      mData[i + 4] = 0.0f;         mData[i + 5] = 0.0f;
+    mData[i + 6] = 53.585014f;  mData[i + 7] = 0.0f;         mData[i + 8] = 0.0f;
+  }
+};
+
+/*
+ * From RGB24.
+ */
+
+TEST(ImageBitmapColorUtils, RGB24ToRGB24_)
+{
+  const RGB24Data srcData;
+  const RGB24Data dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGB24ToRGB24(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToBGR24_)
+{
+  const RGB24Data srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGB24ToBGR24(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToRGBA32)
+{
+  const RGB24Data srcData;
+  const RGBA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGB24ToRGBA32(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                255);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToBGRA32)
+{
+  const RGB24Data srcData;
+  const BGRA32Data dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGB24ToBGRA32(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                255);
+    }
+  }
+}
+
+
+//static void tryLibyuv(int r, int g, int b)
+//{
+//  const RGBA32DataSinglePixel srcData(r, g, b, 255);
+//  YUVImage result_(1, 1, 1, 1, 1, 1, 1, 1, 1);
+//
+//  int length = result_.mYHeight * result_.mYStride +
+//               result_.mUHeight * result_.mUStride +
+//               result_.mVHeight * result_.mVStride;
+//
+//  int rv = libyuv::ABGRToI420(srcData.mData, srcData.mStride,
+//                              result_.YBuffer(), result_.mYStride,
+//                              result_.UBuffer(), result_.mUStride,
+//                              result_.VBuffer(), result_.mVStride,
+//                              result_.mWidth, result_.mHeight);
+//
+//  printf_stderr("\nlibyuv: (%hhu, %hhu, %hhu) --> (%hhu, %hhu, %hhu) \n",
+//                r, g, b,
+//                result_.YBuffer()[0],
+//                result_.UBuffer()[0],
+//                result_.VBuffer()[0]);
+//}
+
+//static void tryLibyuv(int y, int u, int v)
+//{
+//  uint8_t* yuvPixel  = new uint8_t[3];
+//  uint8_t* rgbaPixel = new uint8_t[4];
+//
+//  yuvPixel[0] = y;
+//  yuvPixel[1] = u;
+//  yuvPixel[2] = v;
+//
+//  int rv = libyuv::I420ToABGR(yuvPixel + 0, 1,
+//                              yuvPixel + 1, 1,
+//                              yuvPixel + 2, 1,
+//                              rgbaPixel, 4,
+//                              1, 1);
+//
+//  printf_stderr("\nlibyuv: (%hhu, %hhu, %hhu) --> (%hhu, %hhu, %hhu, %hhu) \n",
+//                yuvPixel[0], yuvPixel[1], yuvPixel[2],
+//                rgbaPixel[0], rgbaPixel[1], rgbaPixel[2], rgbaPixel[3]);
+//}
+
+TEST(ImageBitmapColorUtils, RGB24ToYUV444P)
+{
+  const RGB24Data srcData;
+  const YUV444PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride);
+
+  int rv = RGB24ToYUV444P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToYUV422P)
+{
+  const RGB24Data srcData;
+  const YUV422PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride);
+
+  int rv = RGB24ToYUV422P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToYUV420P)
+{
+  const RGB24Data srcData;
+  const YUV420PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride);
+
+  int rv = RGB24ToYUV420P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToNV12)
+{
+  const RGB24Data srcData;
+  const NV12Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = RGB24ToNV12(srcData.mData, srcData.mStride,
+                       result_.YBuffer(), result_.mYStride,
+                       result_.UVBuffer(), result_.mUVStride,
+                       result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToNV21)
+{
+  const RGB24Data srcData;
+  const NV21Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = RGB24ToNV21(srcData.mData, srcData.mStride,
+                       result_.YBuffer(), result_.mYStride,
+                       result_.UVBuffer(), result_.mUVStride,
+                       result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToHSV)
+{
+  const RGB24Data srcData;
+  const HSVData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = RGB24ToHSV(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToLab)
+{
+  const RGB24Data srcData;
+  const LabData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = RGB24ToLab(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGB24ToGray8)
+{
+  const RGB24Data srcData;
+  const GrayData dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, 1);
+
+  int rv = RGB24ToGray8(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                dstData.mData[i * dstData.mStride + j]);
+    }
+  }
+}
+
+/*
+ * From BGR24.
+ */
+
+TEST(ImageBitmapColorUtils, BGR24ToRGB24_)
+{
+  const BGR24Data srcData;
+  const RGB24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGR24ToRGB24(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToBGR24_)
+{
+  const BGR24Data srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGR24ToBGR24(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToRGBA32)
+{
+  const BGR24Data srcData;
+  const RGBA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGR24ToRGBA32(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                255);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToBGRA32)
+{
+  const BGR24Data srcData;
+  const BGRA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGR24ToBGRA32(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                255);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToYUV444P)
+{
+  const BGR24Data srcData;
+  const YUV444PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride);
+
+  int rv = BGR24ToYUV444P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToYUV422P)
+{
+  const BGR24Data srcData;
+  const YUV422PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride);
+
+  int rv = BGR24ToYUV422P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToYUV420P)
+{
+  const BGR24Data srcData;
+  const YUV420PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride);
+
+  int rv = BGR24ToYUV420P(srcData.mData, srcData.mStride,
+                          result_.YBuffer(), result_.mYStride,
+                          result_.UBuffer(), result_.mUStride,
+                          result_.VBuffer(), result_.mVStride,
+                          result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToNV12)
+{
+  const BGR24Data srcData;
+  const NV12Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = BGR24ToNV12(srcData.mData, srcData.mStride,
+                       result_.YBuffer(), result_.mYStride,
+                       result_.UVBuffer(), result_.mUVStride,
+                       result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToNV21)
+{
+  const BGR24Data srcData;
+  const NV21Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = BGR24ToNV21(srcData.mData, srcData.mStride,
+                       result_.YBuffer(), result_.mYStride,
+                       result_.UVBuffer(), result_.mUVStride,
+                       result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToHSV)
+{
+  const BGR24Data srcData;
+  const HSVData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = BGR24ToHSV(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToLab)
+{
+  const BGR24Data srcData;
+  const LabData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = BGR24ToLab(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGR24ToGray8)
+{
+  const BGR24Data srcData;
+  const GrayData dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, 1);
+
+  int rv = BGR24ToGray8(srcData.mData, srcData.mStride,
+                        result_.mData, result_.mStride,
+                        result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                dstData.mData[i * dstData.mStride + j]);
+    }
+  }
+}
+
+/*
+ * From RGBA32.
+ */
+TEST(ImageBitmapColorUtils, RGBA32ToRGB24)
+{
+  const RGBA32Data srcData;
+  const RGB24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGBA32ToRGB24(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToBGR24)
+{
+  const RGBA32Data srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = RGBA32ToBGR24(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToYUV444P)
+{
+  const RGBA32Data srcData;
+  const YUV444PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride);
+
+  int rv = RGBA32ToYUV444P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToYUV422P)
+{
+  const RGBA32Data srcData;
+  const YUV422PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride);
+
+  int rv = RGBA32ToYUV422P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToYUV420P)
+{
+  const RGBA32Data srcData;
+  const YUV420PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride);
+
+  int rv = RGBA32ToYUV420P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToNV12)
+{
+  const RGBA32Data srcData;
+  const NV12Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = RGBA32ToNV12(srcData.mData, srcData.mStride,
+                        result_.YBuffer(), result_.mYStride,
+                        result_.UVBuffer(), result_.mUVStride,
+                        result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToNV21)
+{
+  const RGBA32Data srcData;
+  const NV21Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = RGBA32ToNV21(srcData.mData, srcData.mStride,
+                        result_.YBuffer(), result_.mYStride,
+                        result_.UVBuffer(), result_.mUVStride,
+                        result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToHSV)
+{
+  const RGBA32Data srcData;
+  const HSVData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = RGBA32ToHSV(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToLab)
+{
+  const RGBA32Data srcData;
+  const LabData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = RGBA32ToLab(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, RGBA32ToGray8)
+{
+  const RGBA32Data srcData;
+  const GrayData dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, 1);
+
+  int rv = RGBA32ToGray8(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                dstData.mData[i * dstData.mStride + j]);
+    }
+  }
+}
+
+/*
+ * From BGRA32.
+ */
+TEST(ImageBitmapColorUtils, BGRA32ToRGB24)
+{
+  const BGRA32Data srcData;
+  const RGB24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGRA32ToRGB24(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToBGR24)
+{
+  const BGRA32Data srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = BGRA32ToBGR24(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.mData[i * dstData.mStride + j * dstData.mChannelCount + 2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToYUV444P)
+{
+  const BGRA32Data srcData;
+  const YUV444PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth, srcData.mHeight, srcData.mStride);
+
+  int rv = BGRA32ToYUV444P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToYUV422P)
+{
+  const BGRA32Data srcData;
+  const YUV422PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight, srcData.mStride);
+
+  int rv = BGRA32ToYUV422P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToYUV420P)
+{
+  const BGRA32Data srcData;
+  const YUV420PData dstData;
+
+  YUVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride,
+                   srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride);
+
+  int rv = BGRA32ToYUV420P(srcData.mData, srcData.mStride,
+                           result_.YBuffer(), result_.mYStride,
+                           result_.UBuffer(), result_.mUStride,
+                           result_.VBuffer(), result_.mVStride,
+                           result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUHeight; ++i) {
+    for (int j = 0; j < dstData.mUWidth; ++j) {
+      EXPECT_EQ(dstData.UBuffer()[i * dstData.mUStride + j],
+                result_.UBuffer()[i * result_.mUStride + j]);
+      EXPECT_EQ(dstData.VBuffer()[i * dstData.mVStride + j],
+                result_.VBuffer()[i * result_.mVStride + j]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToNV12)
+{
+  const BGRA32Data srcData;
+  const NV12Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = BGRA32ToNV12(srcData.mData, srcData.mStride,
+                        result_.YBuffer(), result_.mYStride,
+                        result_.UVBuffer(), result_.mUVStride,
+                        result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToNV21)
+{
+  const BGRA32Data srcData;
+  const NV21Data dstData;
+
+  NVImage result_(srcData.mWidth, srcData.mHeight, srcData.mStride,
+                  srcData.mWidth / 2 + 1, srcData.mHeight / 2 + 1, srcData.mStride + 10);
+
+  int rv = BGRA32ToNV21(srcData.mData, srcData.mStride,
+                        result_.YBuffer(), result_.mYStride,
+                        result_.UVBuffer(), result_.mUVStride,
+                        result_.mYWidth, result_.mYHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mYHeight; ++i) {
+    for (int j = 0; j < dstData.mYWidth; ++j) {
+      EXPECT_EQ(dstData.YBuffer()[i * dstData.mYStride + j],
+                result_.YBuffer()[i * result_.mYStride + j]);
+    }
+  }
+
+  for (int i = 0; i < dstData.mUVHeight; ++i) {
+    for (int j = 0; j < dstData.mUVWidth; ++j) {
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 0],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 0]);
+      EXPECT_EQ(dstData.UVBuffer()[i * dstData.mUVStride + j * 2 + 1],
+                result_.UVBuffer()[i * result_.mUVStride + j * 2 + 1]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToHSV)
+{
+  const BGRA32Data srcData;
+  const HSVData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = BGRA32ToHSV(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToLab)
+{
+  const BGRA32Data srcData;
+  const LabData dstData;
+
+  SimpleImage<float> result_(srcData.mWidth, srcData.mHeight, 3);
+
+  int rv = BGRA32ToLab(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const double actualValue = result_.GetPixelValue(i, j, c);
+        const double expectedValue = dstData.GetPixelValue(i, j, c);
+        const double diff = std::abs(actualValue - expectedValue);
+        EXPECT_LT(diff, 1.0);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, BGRA32ToGray8)
+{
+  const BGRA32Data srcData;
+  const GrayData dstData;
+
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, 1);
+
+  int rv = BGRA32ToGray8(srcData.mData, srcData.mStride,
+                         result_.mData, result_.mStride,
+                         result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < dstData.mHeight; ++i) {
+    for (int j = 0; j < dstData.mWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                dstData.mData[i * dstData.mStride + j]);
+    }
+  }
+}
+
+/*
+ * From YUV444P.
+ */
+TEST(ImageBitmapColorUtils, YUV444PToRGB24)
+{
+  const YUV444PData srcData;
+  const RGBA32DataFromYUV444PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV444PToRGB24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV444PToBGR24)
+{
+  const YUV444PData srcData;
+  const RGBA32DataFromYUV444PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV444PToBGR24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV444PToRGBA32)
+{
+  const YUV444PData srcData;
+  const RGBA32DataFromYUV444PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV444PToRGBA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV444PToBGRA32)
+{
+  const YUV444PData srcData;
+  const RGBA32DataFromYUV444PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV444PToBGRA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV444PToGray8)
+{
+  const YUV444PData srcData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 1);
+
+  int rv = YUV444PToGray8(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                srcData.YBuffer()[i * srcData.mYStride + j]);
+    }
+  }
+}
+
+/*
+ * From YUV422P.
+ */
+TEST(ImageBitmapColorUtils, YUV422PToRGB24)
+{
+  const YUV422PData srcData;
+  const RGBA32DataFromYUV422PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV422PToRGB24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV422PToBGR24)
+{
+  const YUV422PData srcData;
+  const RGBA32DataFromYUV422PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV422PToBGR24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV422PToRGBA32)
+{
+  const YUV422PData srcData;
+  const RGBA32DataFromYUV422PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV422PToRGBA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV422PToBGRA32)
+{
+  const YUV422PData srcData;
+  const RGBA32DataFromYUV422PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV422PToBGRA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV422PToGray8)
+{
+  const YUV422PData srcData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 1);
+
+  int rv = YUV422PToGray8(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                srcData.YBuffer()[i * srcData.mYStride + j]);
+    }
+  }
+}
+
+/*
+ * From YUV420P.
+ */
+TEST(ImageBitmapColorUtils, YUV420PToRGB24)
+{
+  const YUV420PData srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV420PToRGB24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV420PToBGR24)
+{
+  const YUV420PData srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = YUV420PToBGR24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV420PToRGBA32)
+{
+  const YUV420PData srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV420PToRGBA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV420PToBGRA32)
+{
+  const YUV420PData srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = YUV420PToBGRA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UBuffer(), srcData.mUStride,
+                           srcData.VBuffer(), srcData.mVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, YUV420PToGray8)
+{
+  const YUV420PData srcData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 1);
+
+  int rv = YUV420PToGray8(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UBuffer(), srcData.mUStride,
+                          srcData.VBuffer(), srcData.mVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                srcData.YBuffer()[i * srcData.mYStride + j]);
+    }
+  }
+}
+
+/*
+ * From NV12.
+ */
+TEST(ImageBitmapColorUtils, NV12ToRGB24)
+{
+  const NV12Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = NV12ToRGB24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UVBuffer(), srcData.mUVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV12ToBGR24)
+{
+  const NV12Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = NV12ToBGR24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UVBuffer(), srcData.mUVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV12ToRGBA32)
+{
+  const NV12Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = NV12ToRGBA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UVBuffer(), srcData.mUVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV12ToBGRA32)
+{
+  const NV12Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = NV12ToBGRA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UVBuffer(), srcData.mUVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV12ToGray8)
+{
+  const NV12Data srcData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 1);
+
+  int rv = NV12ToGray8(srcData.YBuffer(), srcData.mYStride,
+                       srcData.UVBuffer(), srcData.mUVStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                srcData.YBuffer()[i * srcData.mYStride + j]);
+    }
+  }
+}
+
+/*
+ * From NV21.
+ */
+TEST(ImageBitmapColorUtils, NV21ToRGB24)
+{
+  const NV21Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = NV21ToRGB24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UVBuffer(), srcData.mUVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV21ToBGR24)
+{
+  const NV21Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 3);
+
+  int rv = NV21ToBGR24(srcData.YBuffer(), srcData.mYStride,
+                          srcData.UVBuffer(), srcData.mUVStride,
+                          result_.mData, result_.mStride,
+                          result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV21ToRGBA32)
+{
+  const NV21Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = NV21ToRGBA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UVBuffer(), srcData.mUVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV21ToBGRA32)
+{
+  const NV21Data srcData;
+  const RGBA32DataFromYUV420PData dstData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, dstData.mChannelCount);
+
+  int rv = NV21ToBGRA32(srcData.YBuffer(), srcData.mYStride,
+                           srcData.UVBuffer(), srcData.mUVStride,
+                           result_.mData, result_.mStride,
+                           result_.mWidth, result_.mHeight);
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 0],
+                dstData.GetPixel(j, i)[2]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 1],
+                dstData.GetPixel(j, i)[1]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 2],
+                dstData.GetPixel(j, i)[0]);
+      EXPECT_EQ(result_.mData[i * result_.mStride + j * result_.mChannelCount + 3],
+                dstData.GetPixel(j, i)[3]);
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, NV21ToGray8)
+{
+  const NV21Data srcData;
+  SimpleImage<uint8_t> result_(srcData.mYWidth, srcData.mYHeight, 1);
+
+  int rv = NV21ToGray8(srcData.YBuffer(), srcData.mYStride,
+                       srcData.UVBuffer(), srcData.mUVStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mYHeight; ++i) {
+    for (int j = 0; j < srcData.mYWidth; ++j) {
+      EXPECT_EQ(result_.mData[i * result_.mStride + j],
+                srcData.YBuffer()[i * srcData.mYStride + j]);
+    }
+  }
+}
+
+/*
+ * From HSV.
+ */
+TEST(ImageBitmapColorUtils, HSVToRGB24)
+{
+  const HSVData srcData;
+  const RGB24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = HSVToRGB24(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        EXPECT_EQ(result_.GetPixelValue(i, j, c),
+                  dstData.GetPixelValue(i, j, c));
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, HSVToBGR24)
+{
+  const HSVData srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = HSVToBGR24(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        EXPECT_EQ(result_.GetPixelValue(i, j, c),
+                  dstData.GetPixelValue(i, j, c));
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, HSVToRGBA32)
+{
+  const HSVData srcData;
+  const RGBA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = HSVToRGBA32(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        EXPECT_EQ(result_.GetPixelValue(i, j, c),
+                  dstData.GetPixelValue(i, j, c));
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, HSVToBGRA32)
+{
+  const HSVData srcData;
+  const BGRA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = HSVToBGRA32(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        EXPECT_EQ(result_.GetPixelValue(i, j, c),
+                  dstData.GetPixelValue(i, j, c));
+      }
+    }
+  }
+}
+
+/*
+ * From Lab.
+ */
+TEST(ImageBitmapColorUtils, LabToRGB24)
+{
+  const LabData srcData;
+  const RGB24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = LabToRGB24(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const uint8_t actualValue = result_.GetPixelValue(i, j, c);
+        const uint8_t expectedValue = dstData.GetPixelValue(i, j, c);
+        const int diff = std::abs(actualValue - expectedValue);
+        EXPECT_LE(diff, 1);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, LabToBGR24)
+{
+  const LabData srcData;
+  const BGR24Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = LabToBGR24(srcData.mData, srcData.mStride,
+                      result_.mData, result_.mStride,
+                      result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const uint8_t actualValue = result_.GetPixelValue(i, j, c);
+        const uint8_t expectedValue = dstData.GetPixelValue(i, j, c);
+        const int diff = std::abs(actualValue - expectedValue);
+        EXPECT_LE(diff, 1);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, LabToRGBA32)
+{
+  const LabData srcData;
+  const RGBA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = LabToRGBA32(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const uint8_t actualValue = result_.GetPixelValue(i, j, c);
+        const uint8_t expectedValue = dstData.GetPixelValue(i, j, c);
+        const int diff = std::abs(actualValue - expectedValue);
+        EXPECT_LE(diff, 1);
+      }
+    }
+  }
+}
+
+TEST(ImageBitmapColorUtils, LabToBGRA32)
+{
+  const LabData srcData;
+  const BGRA32Data dstData;
+  SimpleImage<uint8_t> result_(srcData.mWidth, srcData.mHeight, dstData.mChannelCount);
+
+  int rv = LabToBGRA32(srcData.mData, srcData.mStride,
+                       result_.mData, result_.mStride,
+                       result_.mWidth, result_.mHeight);
+
+  ASSERT_TRUE(rv == 0);
+
+  for (int i = 0; i < srcData.mHeight; ++i) {
+    for (int j = 0; j < srcData.mWidth; ++j) {
+      for (int c = 0; c < dstData.mChannelCount; ++c) {
+        const uint8_t actualValue = result_.GetPixelValue(i, j, c);
+        const uint8_t expectedValue = dstData.GetPixelValue(i, j, c);
+        const int diff = std::abs(actualValue - expectedValue);
+        EXPECT_LE(diff, 1);
+      }
+    }
+  }
+}