public void Ctor_ShouldInstantiateImageFrame_When_CalledWithFormat()
{
var imageFrame = new ImageFrame(ImageFormat.Format.SBGRA, 640, 480);
Assert.AreEqual(imageFrame.Format(), ImageFormat.Format.SBGRA);
Assert.AreEqual(imageFrame.Width(), 640);
Assert.AreEqual(imageFrame.Height(), 480);
Assert.AreEqual(imageFrame.ChannelSize(), 1);
Assert.AreEqual(imageFrame.NumberOfChannels(), 4);
Assert.AreEqual(imageFrame.ByteDepth(), 1);
Assert.AreEqual(imageFrame.WidthStep(), 640 * 4);
Assert.AreEqual(imageFrame.PixelDataSize(), 640 * 480 * 4);
Assert.AreEqual(imageFrame.PixelDataSizeStoredContiguously(), 640 * 480 * 4);
Assert.False(imageFrame.IsEmpty());
Assert.True(imageFrame.IsContiguous());
Assert.True(imageFrame.IsAligned(16));
Assert.AreNotEqual(imageFrame.MutablePixelData(), IntPtr.Zero);
}
public void Ctor_ShouldInstantiateImageFrame_When_CalledWithNoArguments()
{
var imageFrame = new ImageFrame();
Assert.AreEqual(imageFrame.Format(), ImageFormat.Format.UNKNOWN);
Assert.AreEqual(imageFrame.Width(), 0);
Assert.AreEqual(imageFrame.Height(), 0);
Assert.Throws <FormatException>(() => { imageFrame.ChannelSize(); });
Assert.Throws <FormatException>(() => { imageFrame.NumberOfChannels(); });
Assert.Throws <FormatException>(() => { imageFrame.ByteDepth(); });
Assert.AreEqual(imageFrame.WidthStep(), 0);
Assert.AreEqual(imageFrame.PixelDataSize(), 0);
Assert.Throws <FormatException>(() => { imageFrame.PixelDataSizeStoredContiguously(); });
Assert.True(imageFrame.IsEmpty());
Assert.False(imageFrame.IsContiguous());
Assert.False(imageFrame.IsAligned(16));
Assert.AreEqual(imageFrame.MutablePixelData(), IntPtr.Zero);
}
public void Ctor_ShouldInstantiateImageFrame_When_CalledWithFormat()
{
using (var imageFrame = new ImageFrame(ImageFormat.Types.Format.Sbgra, 640, 480))
{
Assert.AreEqual(ImageFormat.Types.Format.Sbgra, imageFrame.Format());
Assert.AreEqual(640, imageFrame.Width());
Assert.AreEqual(480, imageFrame.Height());
Assert.AreEqual(1, imageFrame.ChannelSize());
Assert.AreEqual(4, imageFrame.NumberOfChannels());
Assert.AreEqual(1, imageFrame.ByteDepth());
Assert.AreEqual(640 * 4, imageFrame.WidthStep());
Assert.AreEqual(640 * 480 * 4, imageFrame.PixelDataSize());
Assert.AreEqual(640 * 480 * 4, imageFrame.PixelDataSizeStoredContiguously());
Assert.False(imageFrame.IsEmpty());
Assert.True(imageFrame.IsContiguous());
Assert.True(imageFrame.IsAligned(16));
Assert.AreNotEqual(IntPtr.Zero, imageFrame.MutablePixelData());
}
}
public void Ctor_ShouldInstantiateImageFrame_When_CalledWithNoArguments()
{
using (var imageFrame = new ImageFrame())
{
Assert.AreEqual(ImageFormat.Types.Format.Unknown, imageFrame.Format());
Assert.AreEqual(0, imageFrame.Width());
Assert.AreEqual(0, imageFrame.Height(), 0);
Assert.AreEqual(0, imageFrame.ChannelSize());
Assert.AreEqual(0, imageFrame.NumberOfChannels());
Assert.AreEqual(0, imageFrame.ByteDepth());
Assert.AreEqual(0, imageFrame.WidthStep());
Assert.AreEqual(0, imageFrame.PixelDataSize());
Assert.AreEqual(0, imageFrame.PixelDataSizeStoredContiguously());
Assert.True(imageFrame.IsEmpty());
Assert.False(imageFrame.IsContiguous());
Assert.False(imageFrame.IsAligned(16));
Assert.AreEqual(IntPtr.Zero, imageFrame.MutablePixelData());
}
}
private static bool TryReadVec32f2(ImageFrame imageFrame, Color32[] colors)
{
var width = imageFrame.Width();
var height = imageFrame.Height();
var length = width * height;
if (colors.Length != length)
{
Logger.LogWarning($"The length of colors ({colors.Length}) does not equal {width} * {height} = {length}");
return(false);
}
var widthStep = imageFrame.WidthStep();
var byteDepth = imageFrame.ByteDepth();
unsafe
{
fixed(Color32 *dest = colors)
{
// NOTE: We cannot assume that the pixel data is aligned properly.
var pLine = (byte *)imageFrame.MutablePixelData();
// The first element is at top-left (the image is not flipped at all).
var pDest = dest + (width * (height - 1));
for (var i = 0; i < height; i++)
{
var pSrc = (float *)pLine;
for (var j = 0; j < width; j++)
{
var x = *pSrc++;
var y = *pSrc++;
var magnitude = Mathf.Sqrt((x * x) + (y * y));
var angle = Mathf.Atan2(y, x);
* pDest++ = UnityEngine.Color.HSVToRGB(magnitude, 1.0f, angle);
}
pLine += widthStep;
pDest -= 2 * width;
}
}
}
return(true);
}
private static bool TryReadSrgba64(ImageFrame imageFrame, Color32[] colors)
{
var width = imageFrame.Width();
var height = imageFrame.Height();
var length = width * height;
if (colors.Length != length)
{
Logger.LogWarning($"The length of colors ({colors.Length}) does not equal {width} * {height} = {length}");
return(false);
}
var widthStep = imageFrame.WidthStep();
var byteDepth = imageFrame.ByteDepth();
unsafe
{
fixed(Color32 *dest = colors)
{
// NOTE: We cannot assume that the pixel data is aligned properly.
var pLine = (byte *)imageFrame.MutablePixelData();
// The first element is at top-left (the image is not flipped at all).
var pDest = dest + (width * (height - 1));
for (var i = 0; i < height; i++)
{
var pSrc = (ushort *)pLine;
for (var j = 0; j < width; j++)
{
var r = *pSrc++;
var g = *pSrc++;
var b = *pSrc++;
var a = *pSrc++;
* pDest++ = new Color32((byte)(r / 255), (byte)(g / 255), (byte)(b / 255), (byte)(a / 255));
}
pLine += widthStep;
pDest -= 2 * width;
}
}
}
return(true);
}
private static bool TryReadChannel <TSrc, TDst>(ImageFrame imageFrame, int channelCount, int channelNumber, ChannelTransformer <TSrc, TDst> transformer,
TDst[] channelData, bool isHorizontallyFlipped, bool isVerticallyFlipped) where TSrc : unmanaged where TDst : unmanaged
{
var width = imageFrame.Width();
var height = imageFrame.Height();
var length = width * height;
if (channelData.Length != length)
{
Logger.LogWarning($"The length of channelData ({channelData.Length}) does not equal {width} * {height} = {length}");
return(false);
}
var widthStep = imageFrame.WidthStep();
var byteDepth = imageFrame.ByteDepth();
unsafe
{
fixed(TDst *dest = channelData)
{
// NOTE: We cannot assume that the pixel data is aligned properly.
var pLine = (byte *)imageFrame.MutablePixelData();
pLine += byteDepth * channelNumber;
if (isVerticallyFlipped)
{
if (isHorizontallyFlipped)
{
// The first element is at bottom-right.
var pDest = dest + width - 1;
for (var i = 0; i < height; i++)
{
var pSrc = (TSrc *)pLine;
for (var j = 0; j < width; j++)
{
*pDest-- = transformer(*pSrc);
pSrc += channelCount;
}
pLine += widthStep;
pDest += 2 * width;
}
}
else
{
// The first element is at bottom-left.
// NOTE: In the Unity coordinate system, the image can be considered as not flipped.
var pDest = dest;
for (var i = 0; i < height; i++)
{
var pSrc = (TSrc *)pLine;
for (var j = 0; j < width; j++)
{
*pDest++ = transformer(*pSrc);
pSrc += channelCount;
}
pLine += widthStep;
}
}
}
else
{
if (isHorizontallyFlipped)
{
// The first element is at top-right.
var pDest = dest + length - 1;
for (var i = 0; i < height; i++)
{
var pSrc = (TSrc *)pLine;
for (var j = 0; j < width; j++)
{
*pDest-- = transformer(*pSrc);
pSrc += channelCount;
}
pLine += widthStep;
}
}
else
{
// The first element is at top-left (the image is not flipped at all).
var pDest = dest + (width * (height - 1));
for (var i = 0; i < height; i++)
{
var pSrc = (TSrc *)pLine;
for (var j = 0; j < width; j++)
{
*pDest++ = transformer(*pSrc);
pSrc += channelCount;
}
pLine += widthStep;
pDest -= 2 * width;
}
}
}
}
}
return(true);
}
