///////////////////////////////////////////////////////////////////////////
private void LoadImage(BinaryReverseReader reader)
{
Debug.WriteLine("LoadImage started at " + reader.BaseStream.Position);
m_imageCompression = (ImageCompression)reader.ReadInt16();
m_imageData = new byte[m_channels][];
//---------------------------------------------------------------
if (m_imageCompression == ImageCompression.Rle)
{
// The RLE-compressed data is proceeded by a 2-byte data count for each row in the data,
// which we're going to just skip.
reader.BaseStream.Position += m_rows * m_channels * 2;
}
//---------------------------------------------------------------
int bytesPerRow = 0;
switch (m_depth)
{
case 1:
bytesPerRow = m_columns; //NOT Shure
break;
case 8:
bytesPerRow = m_columns;
break;
case 16:
bytesPerRow = m_columns * 2;
break;
}
//---------------------------------------------------------------
for (int ch = 0; ch < m_channels; ch++)
{
m_imageData[ch] = new byte[m_rows * bytesPerRow];
switch (m_imageCompression)
{
case ImageCompression.Raw:
reader.Read(m_imageData[ch], 0, m_imageData[ch].Length);
break;
case ImageCompression.Rle:
{
for (int i = 0; i < m_rows; i++)
{
int rowIndex = i * m_columns;
RleHelper.DecodedRow(reader.BaseStream, m_imageData[ch], rowIndex, bytesPerRow);
}
}
break;
}
}
}
//////////////////////////////////////////////////////////////////
internal void LoadPixelData(BinaryReverseReader reader)
{
Debug.WriteLine("Channel.LoadPixelData started at " + reader.BaseStream.Position);
m_data = reader.ReadBytes(Length);
using (BinaryReverseReader readerImg = DataReader)
{
m_imageCompression = (ImageCompression)readerImg.ReadInt16();
int bytesPerRow = 0;
switch (m_layer.PsdFile.Depth)
{
case 1:
bytesPerRow = m_layer.m_rect.Width; //NOT Shure
break;
case 8:
bytesPerRow = m_layer.m_rect.Width;
break;
case 16:
bytesPerRow = m_layer.m_rect.Width * 2;
break;
}
m_imageData = new byte[m_layer.m_rect.Height * bytesPerRow];
switch (m_imageCompression)
{
case ImageCompression.Raw:
readerImg.Read(m_imageData, 0, m_imageData.Length);
break;
case ImageCompression.Rle:
{
var rowLenghtList = new int[m_layer.m_rect.Height];
for (int i = 0; i < rowLenghtList.Length; i++)
{
rowLenghtList[i] = readerImg.ReadInt16();
}
for (int i = 0; i < m_layer.m_rect.Height; i++)
{
var rowIndex = i * m_layer.m_rect.Width;
RleHelper.DecodedRow(readerImg.BaseStream, m_imageData, rowIndex, bytesPerRow);
//if (rowLenghtList[i] % 2 == 1)
// readerImg.ReadByte();
}
}
break;
}
}
}
public void DecompressImageData()
{
MemoryStream stream = new MemoryStream(m_data);
for (int i = 0; i < m_layer.m_rect.Height; i++)
{
int rowIndex = i * m_layer.m_rect.Width;
RleHelper.DecodedRow(stream, m_imageData, rowIndex, m_bytesPerRow);
}
}
internal void LoadPixelData(BinaryReverseReader reader)
{
Data = reader.ReadBytes(Length);
using (BinaryReverseReader dataReader = DataReader)
{
//从文档 五 - 5 读取信息
ImageCompression = (ImageCompression)dataReader.ReadInt16();
int columns = 0;
switch (Layer.PsdFile.Depth)
{
case 1:
columns = (int)Layer.Rect.width;
break;
case 8:
columns = (int)Layer.Rect.width;
break;
case 16:
columns = (int)Layer.Rect.width * 2;
break;
}
ImageData = new byte[(int)Layer.Rect.height * columns];
switch (ImageCompression)
{
case ImageCompression.Raw:
dataReader.Read(ImageData, 0, ImageData.Length);
break;
case ImageCompression.Rle:
int[] nums = new int[(int)Layer.Rect.height];
for (int i = 0; i < Layer.Rect.height; i++)
{
nums[i] = dataReader.ReadInt16();
}
for (int index = 0; index < Layer.Rect.height; ++index)
{
int startIdx = index * (int)Layer.Rect.width;
RleHelper.DecodedRow(dataReader.BaseStream, ImageData, startIdx, columns);
}
break;
}
}
}
private void LoadImage(BinaryReverseReader reader)
{
_imageCompression = (ImageCompression)reader.ReadInt16();
_imageData = new byte[_channels][];
if (_imageCompression == ImageCompression.Rle)
{
reader.BaseStream.Position += _height * _channels * 2;
}
int columns = 0;
switch (_depth)
{
case 1:
columns = _width;
break;
case 8:
columns = _width;
break;
case 16:
columns = _width * 2;
break;
}
for (int index1 = 0; index1 < (int)_channels; ++index1)
{
_imageData[index1] = new byte[_height * columns];
switch (_imageCompression)
{
case ImageCompression.Raw:
reader.Read(_imageData[index1], 0, _imageData[index1].Length);
break;
case ImageCompression.Rle:
for (int index2 = 0; index2 < _height; ++index2)
{
int startIdx = index2 * _width;
RleHelper.DecodedRow(reader.BaseStream, _imageData[index1], startIdx, columns);
}
break;
}
}
}
///////////////////////////////////////////////////////////////////////////
private void SaveImageRLE(BinaryReverseWriter writer)
{
// we will write the correct lengths later, so remember
// the position
var lengthPosition = writer.BaseStream.Position;
var rleRowLenghs = new int[m_rows * m_channels];
if (m_imageCompression == ImageCompression.Rle)
{
for (int i = 0; i < rleRowLenghs.Length; i++)
{
writer.Write((short)0x1234);
}
}
//---------------------------------------------------------------
for (int ch = 0; ch < m_channels; ch++)
{
var startIdx = ch * m_rows;
for (int row = 0; row < m_rows; row++)
{
rleRowLenghs[row + startIdx] = RleHelper.EncodedRow(writer.BaseStream, m_imageData[ch],
row * m_columns, m_columns);
}
}
//---------------------------------------------------------------
long endPosition = writer.BaseStream.Position;
writer.BaseStream.Position = lengthPosition;
for (var i = 0; i < rleRowLenghs.Length; i++)
{
writer.Write((short)rleRowLenghs[i]);
}
writer.BaseStream.Position = endPosition;
//---------------------------------------------------------------
}
internal void LoadPixelData(BinaryReverseReader reader)
{
Debug.WriteLine("Mask.LoadPixelData started at " + reader.BaseStream.Position.ToString());
if (m_rect.IsEmpty || m_layer.SortedChannels.ContainsKey(-2) == false)
{
return;
}
Channel maskChannel = m_layer.SortedChannels[-2];
maskChannel.Data = reader.ReadBytes((int)maskChannel.Length);
using (BinaryReverseReader readerImg = maskChannel.DataReader)
{
maskChannel.ImageCompression = (ImageCompression)readerImg.ReadInt16();
int bytesPerRow = 0;
switch (m_layer.PsdFile.Depth)
{
case 1:
bytesPerRow = ImageDecoder.BytesFromBits(m_layer.m_rect.Width);
break;
case 8:
bytesPerRow = m_rect.Width;
break;
case 16:
bytesPerRow = m_rect.Width * 2;
break;
}
maskChannel.ImageData = new byte[m_rect.Height * bytesPerRow];
// Fill Array
for (int i = 0; i < maskChannel.ImageData.Length; i++)
{
maskChannel.ImageData[i] = 0xAB;
}
m_imageData = (byte[])maskChannel.ImageData.Clone();
switch (maskChannel.ImageCompression)
{
case ImageCompression.Raw:
readerImg.Read(maskChannel.ImageData, 0, maskChannel.ImageData.Length);
break;
case ImageCompression.Rle:
{
uint[] rowLengthList = new uint[m_rect.Height];
for (int i = 0; i < rowLengthList.Length; i++)
{
rowLengthList[i] = readerImg.ReadUInt16();
}
for (int i = 0; i < m_rect.Height; i++)
{
int rowIndex = i * m_rect.Width;
RleHelper.DecodedRow(readerImg.BaseStream, maskChannel.ImageData, rowIndex, bytesPerRow);
}
}
break;
default:
break;
}
m_imageData = (byte[])maskChannel.ImageData.Clone();
}
}
public void CompressImageData()
{
if (m_imageCompression == ImageCompression.Rle)
{
MemoryStream dataStream = new MemoryStream();
BinaryReverseWriter writer = new BinaryReverseWriter(dataStream);
// we will write the correct lengths later, so remember
// the position
long lengthPosition = writer.BaseStream.Position;
int[] rleRowLengths = new int[m_layer.m_rect.Height];
for (int i = 0; i < rleRowLengths.Length; i++)
{
writer.Write((short)0x1234);
}
//---------------------------------------------------------------
int bytesPerRow = 0;
switch (m_layer.PsdFile.Depth)
{
case 1:
bytesPerRow = ImageDecoder.BytesFromBits(m_layer.m_rect.Width);
break;
case 8:
bytesPerRow = m_layer.m_rect.Width;
break;
case 16:
bytesPerRow = m_layer.m_rect.Width * 2;
break;
}
//---------------------------------------------------------------
for (int row = 0; row < m_layer.m_rect.Height; row++)
{
int rowIndex = row * m_layer.m_rect.Width;
rleRowLengths[row] = RleHelper.EncodedRow(writer.BaseStream, m_imageData, rowIndex, bytesPerRow);
}
//---------------------------------------------------------------
long endPosition = writer.BaseStream.Position;
writer.BaseStream.Position = lengthPosition;
for (int i = 0; i < rleRowLengths.Length; i++)
{
writer.Write((short)rleRowLengths[i]);
}
writer.BaseStream.Position = endPosition;
dataStream.Close();
m_data = dataStream.ToArray();
dataStream.Dispose();
}
else
{
m_data = (byte[])m_imageData.Clone();
}
}
/// <summary>
/// Reads the pixel data from a reader.
/// </summary>
/// <param name="reader">The reader to use to read the pixel data.</param>
internal void LoadPixelData(BinaryReverseReader reader)
{
if (rect.width <= 0 || !Layer.SortedChannels.ContainsKey(-2))
{
return;
}
Channel channel = Layer.SortedChannels[-2];
channel.Data = reader.ReadBytes(channel.Length);
using (BinaryReverseReader dataReader = channel.DataReader)
{
channel.ImageCompression = (ImageCompression)dataReader.ReadInt16();
int columns = 0;
switch (Layer.PsdFile.Depth)
{
case 1:
columns = (int)rect.width;
break;
case 8:
columns = (int)rect.width;
break;
case 16:
columns = (int)rect.width * 2;
break;
}
channel.ImageData = new byte[(int)rect.height * columns];
for (int index = 0; index < channel.ImageData.Length; ++index)
{
channel.ImageData[index] = 171;
}
ImageData = (byte[])channel.ImageData.Clone();
switch (channel.ImageCompression)
{
case ImageCompression.Raw:
dataReader.Read(channel.ImageData, 0, channel.ImageData.Length);
break;
case ImageCompression.Rle:
int[] nums = new int[(int)rect.height];
for (int i = 0; i < (int)rect.height; i++)
{
nums[i] = dataReader.ReadInt16();
}
for (int index = 0; index < (int)rect.height; ++index)
{
int startIdx = index * (int)rect.width;
RleHelper.DecodedRow(dataReader.BaseStream, channel.ImageData, startIdx, columns);
}
break;
}
ImageData = (byte[])channel.ImageData.Clone();
}
}
