public LengthWriter(BinaryReverseWriter writer)
{
_writer = writer;
// we will write the correct length later, so remember
// the position
_lengthPosition = _writer.BaseStream.Position;
_writer.Write((uint)0xFEEDFEED);
// remember the start position for calculation Image
// resources length
_startPosition = _writer.BaseStream.Position;
}
internal void SavePixelData(BinaryReverseWriter writer)
{
Debug.WriteLine("Channel SavePixelData started at " + writer.BaseStream.Position);
writer.Write((short)ImageCompression);
writer.Write(ImageData);
}
internal void Save(BinaryReverseWriter writer)
{
Debug.WriteLine("Channel Save started at " + writer.BaseStream.Position.ToString());
writer.Write(Id);
CompressImageData();
writer.Write(Data.Length + 2); // 2 bytes for the image compression
}
///////////////////////////////////////////////////////////////////////////
public void Save(BinaryReverseWriter writer)
{
Debug.WriteLine("BlendingRanges Save started at " + writer.BaseStream.Position.ToString());
writer.Write((uint)m_data.Length);
writer.Write(m_data);
}
public void Save(BinaryReverseWriter writer)
{
Debug.WriteLine("AdjusmentLayerInfo Save started at " + writer.BaseStream.Position.ToString());
string signature = "8BIM";
writer.Write(signature.ToCharArray());
writer.Write(m_key.ToCharArray());
writer.Write((uint)m_data.Length);
writer.Write(m_data);
}
///////////////////////////////////////////////////////////////////////////
public void Save(BinaryReverseWriter writer)
{
Debug.WriteLine("Layer Save started at " + writer.BaseStream.Position.ToString());
writer.Write(Rect.Top);
writer.Write(Rect.Left);
writer.Write(Rect.Bottom);
writer.Write(Rect.Right);
//-----------------------------------------------------------------------
writer.Write((short)_channels.Count);
foreach (Channel ch in _channels)
ch.Save(writer);
//-----------------------------------------------------------------------
string signature = "8BIM";
writer.Write(signature.ToCharArray());
writer.Write(_blendModeKey.ToCharArray());
writer.Write(Opacity);
writer.Write((byte)(Clipping ? 1 : 0));
writer.Write((byte)_flags.Data);
//-----------------------------------------------------------------------
writer.Write((byte)0);
//-----------------------------------------------------------------------
using (new LengthWriter(writer))
{
m_maskData.Save(writer);
m_blendingRangesData.Save(writer);
long namePosition = writer.BaseStream.Position;
writer.WritePascalString(Name);
int paddingBytes = (int)((writer.BaseStream.Position - namePosition) % 4);
Debug.Print("Layer {0} write padding bytes after name", paddingBytes);
for (int i = 0; i < paddingBytes; i++)
writer.Write((byte)0);
foreach (AdjusmentLayerInfo info in m_adjustmentInfo)
{
info.Save(writer);
}
}
}
private void SaveColorModeData(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveColorModeData started at " + writer.BaseStream.Position.ToString());
writer.Write((uint)ColorModeData.Length);
writer.Write(ColorModeData);
}
internal void SavePixelData(BinaryReverseWriter writer)
{
//writer.Write(m_data);
}
///////////////////////////////////////////////////////////////////////////
private void SaveLayerAndMaskInfo(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveLayerAndMaskInfo started at " + writer.BaseStream.Position.ToString());
using (new LengthWriter(writer))
{
SaveLayers(writer);
SaveGlobalLayerMask(writer);
}
}
///////////////////////////////////////////////////////////////////////////
private void SaveImageRLE(BinaryReverseWriter writer)
{
// we will write the correct lengths later, so remember
// the position
long lengthPosition = writer.BaseStream.Position;
int[] 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++)
{
int 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 (int i = 0; i < rleRowLenghs.Length; i++)
{
writer.Write((short)rleRowLenghs[i]);
}
writer.BaseStream.Position = endPosition;
//---------------------------------------------------------------
}
///////////////////////////////////////////////////////////////////////////
private void SaveImageResources(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveImageResources started at " + writer.BaseStream.Position.ToString());
using (new LengthWriter(writer))
{
foreach (ImageResource imgRes in m_imageResources)
imgRes.Save(writer);
}
}
///////////////////////////////////////////////////////////////////////////
private void SaveImage(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveImage started at " + writer.BaseStream.Position.ToString());
writer.Write((short)m_imageCompression);
if (m_imageCompression == ImageCompression.Rle)
{
SaveImageRLE(writer);
}
else
{
for (int ch = 0; ch < m_channels; ch++)
{
writer.Write(m_imageData[ch]);
}
}
}
///////////////////////////////////////////////////////////////////////////
private void SaveHeader(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveHeader started at " + writer.BaseStream.Position.ToString());
string signature = "8BPS";
writer.Write(signature.ToCharArray());
writer.Write(Version);
writer.Write(new byte[] { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, });
writer.Write(m_channels);
writer.Write(m_rows);
writer.Write(m_columns);
writer.Write((short)m_depth);
writer.Write((short)m_colorMode);
}
///////////////////////////////////////////////////////////////////////////
private void SaveGlobalLayerMask(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveGlobalLayerMask started at " + writer.BaseStream.Position.ToString());
writer.Write((uint)GlobalLayerMaskData.Length);
writer.Write(GlobalLayerMaskData);
}
private void CompressImageData()
{
if (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[] rleRowLenghs = new int[_layer.Rect.Height];
if (ImageCompression == ImageCompression.Rle)
{
for (int i = 0; i < rleRowLenghs.Length; i++)
{
writer.Write((short)0x1234);
}
}
//---------------------------------------------------------------
int bytesPerRow = 0;
switch (_layer.PsdFile.Depth)
{
case 1:
bytesPerRow = _layer.Rect.Width;//NOT Shure
break;
case 8:
bytesPerRow = _layer.Rect.Width;
break;
case 16:
bytesPerRow = _layer.Rect.Width * 2;
break;
}
//---------------------------------------------------------------
for (int row = 0; row < _layer.Rect.Height; row++)
{
int rowIndex = row * _layer.Rect.Width;
rleRowLenghs[row] = RleHelper.EncodedRow(writer.BaseStream, ImageData, rowIndex, bytesPerRow);
}
//---------------------------------------------------------------
long endPosition = writer.BaseStream.Position;
writer.BaseStream.Position = lengthPosition;
for (int i = 0; i < rleRowLenghs.Length; i++)
{
writer.Write((short)rleRowLenghs[i]);
}
writer.BaseStream.Position = endPosition;
dataStream.Close();
Data = dataStream.ToArray();
dataStream.Dispose();
}
else
{
Data = (byte[])ImageData.Clone();
}
}
///////////////////////////////////////////////////////////////////////////
public void Save(BinaryReverseWriter writer)
{
Debug.WriteLine("Mask Save started at " + writer.BaseStream.Position.ToString());
if (m_rect.IsEmpty)
{
writer.Write((uint)0);
return;
}
using (new LengthWriter(writer))
{
writer.Write(m_rect.Top);
writer.Write(m_rect.Left);
writer.Write(m_rect.Bottom);
writer.Write(m_rect.Right);
writer.Write(m_defaultColor);
writer.Write((byte)m_flags.Data);
// padding 2 bytes so that size is 20
writer.Write((int)0);
}
}
///////////////////////////////////////////////////////////////////////////
private void SaveLayers(BinaryReverseWriter writer)
{
Debug.WriteLine("SaveLayers started at " + writer.BaseStream.Position.ToString());
using (new LengthWriter(writer))
{
short numberOfLayers = (short)m_layers.Count;
if (AbsoluteAlpha)
numberOfLayers = (short)-numberOfLayers;
writer.Write(numberOfLayers);
foreach (Layer layer in m_layers)
{
layer.Save(writer);
}
foreach (Layer layer in m_layers)
{
foreach (Layer.Channel channel in layer.Channels)
{
channel.SavePixelData(writer);
}
}
if (writer.BaseStream.Position % 2 == 1)
writer.Write((byte)0);
}
}
//////////////////////////////////////////////////////////////////
public void Save(BinaryReverseWriter writer)
{
StoreData();
if (m_osType == String.Empty)
m_osType = "8BIM";
writer.Write(m_osType.ToCharArray());
writer.Write(m_id);
writer.WritePascalString(m_name);
writer.Write((int)m_data.Length);
writer.Write(m_data);
if (writer.BaseStream.Position % 2 == 1)
writer.Write((byte)0);
}
public void Save(Stream stream)
{
BinaryReverseWriter writer = new BinaryReverseWriter(stream);
writer.AutoFlush = true;
SaveHeader(writer);
SaveColorModeData(writer);
SaveImageResources(writer);
SaveLayerAndMaskInfo(writer);
SaveImage(writer);
}
