private unsafe PinnedByteArray GetGreyBytes(Bitmap bitmap)
{
var pixels = new PinnedByteArray(bitmap.Width * bitmap.Height);
var data = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly,
bitmap.PixelFormat);
var srcComponents = bitmap.PixelFormat == PixelFormat.Format24bppRgb ? 3 : 4;
var dstLine = (byte *)pixels.Pointer;
var srcLine = (byte *)data.Scan0.ToPointer();
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
var pixel = srcLine + j * srcComponents;
int grey = (int)(pixel[0] * 0.3 + pixel[1] * 0.59 + pixel[2] * 0.11);
dstLine[j] = (byte)grey;
}
srcLine += data.Stride;
dstLine += data.Width;
}
bitmap.UnlockBits(data);
return(pixels);
}
private unsafe PinnedByteArray GetColorbytes(Bitmap bitmap)
{
var pixels = new PinnedByteArray(bitmap.Width * bitmap.Height * 3);
var data = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly,
bitmap.PixelFormat);
var srcComponents = bitmap.PixelFormat == PixelFormat.Format24bppRgb ? 3 : 4;
var dstLine = (byte *)pixels.Pointer;
var srcLine = (byte *)data.Scan0.ToPointer();
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
var srcPixel = srcLine + j * srcComponents;
var dstPixel = dstLine + j * 3;
//convert from bgr to rgb
dstPixel[0] = srcPixel[2];
dstPixel[1] = srcPixel[1];
dstPixel[2] = srcPixel[0];
}
srcLine += data.Stride;
dstLine += data.Width * 3;
}
bitmap.UnlockBits(data);
return(pixels);
}
MarshalStringArrayToIntPtrArray(String[] args,
int argc)
{
Encoding encode = Encoding.Unicode;
switch (CurrentEncodeing)
{
case P4Encoding.utf8:
encode = Encoding.UTF8;
break;
case P4Encoding.utf16:
encode = Encoding.Unicode;
break;
}
PinnedByteArray[] args_b = new PinnedByteArray[argc];
for (int i = 0; i < argc; i++)
{
//null terminate the strings
byte[] arg_b = encode.GetBytes(args[i] + '\0');
args_b[i] = new PinnedByteArray(arg_b);
}
return(new PinnedByteArrays(args_b));
}
private unsafe PinnedByteArray GetGreyBytes(Bitmap bitmap)
{
var pixels = new PinnedByteArray(bitmap.Width * bitmap.Height);
var data = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly,
bitmap.PixelFormat);
var srcComponents = bitmap.PixelFormat == PixelFormat.Format24bppRgb ? 3 : 4;
var dstLine = (byte *)pixels.Pointer;
var srcLine = (byte *)data.Scan0.ToPointer();
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
var pixel = srcLine + j * srcComponents;
// int grey = (int)(pixel[0] * 0.3 + pixel[1] * 0.59 + pixel[2] * 0.11);
// dstLine[j] = (byte)grey;
// see https://www.cnblogs.com/carekee/articles/3629964.html
dstLine[j] = (byte)((pixel[0] * 38 + pixel[1] * 75 + pixel[2] * 15) >> 7);
}
srcLine += data.Stride;
dstLine += data.Width;
}
bitmap.UnlockBits(data);
return(pixels);
}
public override void Decode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
throw new InvalidOperationException("Unsupported OS Platform");
}
for (int frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
IByteBuffer jpegData = oldPixelData.GetFrame(frame);
//Converting photmetricinterpretation YbrFull or YbrFull422 to RGB
if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull)
{
jpegData = PixelDataConverter.YbrFullToRgb(jpegData);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
else if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull422)
{
jpegData = PixelDataConverter.YbrFull422ToRgb(jpegData, oldPixelData.Width);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
PinnedByteArray jpegArray = new PinnedByteArray(jpegData.Data);
byte[] frameData = new byte[newPixelData.UncompressedFrameSize];
PinnedByteArray frameArray = new PinnedByteArray(frameData);
JlsParameters jls = new JlsParameters();
char[] errorMessage = new char[256];
// IMPORT JpegLsDecode
unsafe
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
CharlsApiResultType err = JpegLSDecode_Linux64((void *)frameArray.Pointer, frameData.Length, (void *)jpegArray.Pointer, Convert.ToUInt32(jpegData.Size), ref jls, errorMessage);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
CharlsApiResultType err = JpegLSDecode_Windows64((void *)frameArray.Pointer, frameData.Length, (void *)jpegArray.Pointer, Convert.ToUInt32(jpegData.Size), ref jls, errorMessage);
}
IByteBuffer buffer;
if (frameData.Length >= (1 * 1024 * 1024) || oldPixelData.NumberOfFrames > 1)
{
buffer = new TempFileBuffer(frameData);
}
else
{
buffer = new MemoryByteBuffer(frameData);
}
buffer = EvenLengthBuffer.Create(buffer);
newPixelData.AddFrame(buffer);
}
}
}
/// <summary>
/// Adds a new entry in the map
/// </summary>
/// <param name="lr">String representing both the the left and right sides of
/// the new entry</param>
/// <param name="t">Type of the new entry</param>
public void Insert(String lr, P4MapApi.Type t)
{
if (UseUnicode)
{
using (PinnedByteArray plr = MarshalStringToIntPtr(lr))
{
InsertW(pMapApi, plr, t);
}
}
else
{
InsertA(pMapApi, lr, t);
}
}
/// <summary>
/// Adds a new entry in the map
/// </summary>
/// <param name="left">String representing the the left side of the new entry</param>
/// <param name="right">String representing the the right side of the new entry</param>
/// <param name="type">Type of the new entry</param>
public void Insert(String left, String right, P4MapApi.Type type)
{
if (UseUnicode)
{
using (PinnedByteArray pLeft = MarshalStringToIntPtr(left),
pRight = MarshalStringToIntPtr(right))
{
InsertW(pMapApi, pLeft, pRight, type);
}
}
else
{
InsertA(pMapApi, left, right, type);
}
}
/// <summary>
/// Translate a file path from on side of the mapping to the other
/// </summary>
/// <param name="path">The path to translate</param>
/// <param name="direction">The direction to perform the translation L->R or R->L</param>
/// <returns>Translated path, Null if no translation (path is not mapped)</returns>
public String Translate(String path, Direction direction)
{
IntPtr pStr = IntPtr.Zero;
if (UseUnicode)
{
using (PinnedByteArray pPath = MarshalStringToIntPtr(path))
{
pStr = TranslateW(pMapApi, pPath, direction);
}
}
else
{
pStr = TranslateA(pMapApi, path, direction);
}
if (pStr != IntPtr.Zero)
{
String translation = MarshalPtrToString(pStr);
P4Bridge.ReleaseString(pStr);
return(translation);
}
return(null);
}
private unsafe PinnedByteArray GetColorbytes(Bitmap bitmap)
{
var pixels = new PinnedByteArray(bitmap.Width * bitmap.Height * 3);
var data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat);
var srcComponents = bitmap.PixelFormat == PixelFormat.Format24bppRgb ? 3 : 4;
var dstLine = (byte*)pixels.Pointer;
var srcLine = (byte*)data.Scan0.ToPointer();
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
var srcPixel = srcLine + j * srcComponents;
var dstPixel = dstLine + j * 3;
//convert from bgr to rgb
dstPixel[0] = srcPixel[2];
dstPixel[1] = srcPixel[1];
dstPixel[2] = srcPixel[0];
}
srcLine += data.Stride;
dstLine += data.Width * 3;
}
bitmap.UnlockBits(data);
return pixels;
}
private unsafe PinnedByteArray GetGreyBytes(Bitmap bitmap)
{
var pixels = new PinnedByteArray(bitmap.Width * bitmap.Height);
var data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat);
var srcComponents = bitmap.PixelFormat == PixelFormat.Format24bppRgb ? 3 : 4;
var dstLine = (byte*)pixels.Pointer;
var srcLine = (byte*)data.Scan0.ToPointer();
for (int i = 0; i < data.Height; i++)
{
for (int j = 0; j < data.Width; j++)
{
var pixel = srcLine + j * srcComponents;
int grey = (int)(pixel[0] * 0.3 + pixel[1] * 0.59 + pixel[2] * 0.11);
dstLine[j] = (byte)grey;
}
srcLine += data.Stride;
dstLine += data.Width;
}
bitmap.UnlockBits(data);
return pixels;
}
public override unsafe void Encode(DicomPixelData oldPixelData, DicomPixelData newPixelData, DicomCodecParams parameters)
{
if (!RuntimeInformation.IsOSPlatform(OSPlatform.Linux) && !RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
throw new InvalidOperationException("Unsupported OS Platform");
}
if ((oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrPartial422) ||
(oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrPartial420))
{
throw new DicomCodecException("Photometric Interpretation '{0}' not supported by JPEG-LS encoder", oldPixelData.PhotometricInterpretation);
}
DicomJpegLsParams jparams = (DicomJpegLsParams)parameters;
if (jparams == null)
{
jparams = (DicomJpegLsParams)GetDefaultParameters();
}
//IMPORT JLSPARAMETERS (DLLIMPORT)
JlsParameters jls = new JlsParameters
{
width = oldPixelData.Width,
height = oldPixelData.Height,
bitsPerSample = oldPixelData.BitsStored,
stride = oldPixelData.BytesAllocated * oldPixelData.Width * oldPixelData.SamplesPerPixel,
components = oldPixelData.SamplesPerPixel,
interleaveMode = oldPixelData.SamplesPerPixel == 1
? CharlsInterleaveModeType.None
: oldPixelData.PlanarConfiguration == PlanarConfiguration.Interleaved
? CharlsInterleaveModeType.Sample
: CharlsInterleaveModeType.Line,
colorTransformation = CharlsColorTransformationType.None
};
if (TransferSyntax == DicomTransferSyntax.JPEGLSNearLossless)
{
jls.allowedLossyError = jparams.AllowedError;
}
for (int frame = 0; frame < oldPixelData.NumberOfFrames; frame++)
{
IByteBuffer frameData = oldPixelData.GetFrame(frame);
//Converting photmetricinterpretation YbrFull or YbrFull422 to RGB
if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull)
{
frameData = PixelDataConverter.YbrFullToRgb(frameData);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
else if (oldPixelData.PhotometricInterpretation == PhotometricInterpretation.YbrFull422)
{
frameData = PixelDataConverter.YbrFull422ToRgb(frameData, oldPixelData.Width);
oldPixelData.PhotometricInterpretation = PhotometricInterpretation.Rgb;
}
PinnedByteArray frameArray = new PinnedByteArray(frameData.Data);
byte[] jpegData = new byte[frameData.Size];
PinnedByteArray jpegArray = new PinnedByteArray(jpegData);
uint jpegDataSize = 0;
char[] errorMessage = new char[256];
// IMPORT JpegLsEncode
unsafe {
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
CharlsApiResultType err = JpegLSEncode_Linux64((void *)jpegArray.Pointer, checked ((uint)jpegArray.Count), &jpegDataSize, (void *)frameArray.Pointer, checked ((uint)frameArray.Count), ref jls, errorMessage);
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
CharlsApiResultType err = JpegLSEncode_Windows64((void *)jpegArray.Pointer, checked ((uint)jpegArray.Count), &jpegDataSize, (void *)frameArray.Pointer, checked ((uint)frameArray.Count), ref jls, errorMessage);
}
Array.Resize(ref jpegData, (int)jpegDataSize);
IByteBuffer buffer;
if (jpegDataSize >= (1 * 1024 * 1024) || oldPixelData.NumberOfFrames > 1)
{
buffer = new TempFileBuffer(jpegData);
}
else
{
buffer = new MemoryByteBuffer(jpegData);
}
buffer = EvenLengthBuffer.Create(buffer);
newPixelData.AddFrame(buffer);
}
}
}
