public Header(BinaryPSDReader reader)
{
this.Version = reader.ReadUInt16();
if (Version != 1)
throw new Exception("Can not read .psd version " + Version);
byte[] buf = new byte[256];
reader.Read(buf, (int)reader.BaseStream.Position, 6); //6 bytes reserved
this.Channels = reader.ReadInt16();
this.Rows = reader.ReadUInt32();
this.Columns = reader.ReadUInt32();
this.BitsPerPixel = reader.ReadUInt16();
this.ColorMode = (ColorModes)reader.ReadInt16();
}
public Header(BinaryPSDReader reader)
{
this.Version = reader.ReadUInt16();
if (Version != 1)
{
throw new Exception("Can not read .psd version " + Version);
}
byte[] buf = new byte[256];
reader.Read(buf, (int)reader.BaseStream.Position, 6); //6 bytes reserved
this.Channels = reader.ReadInt16();
this.Rows = reader.ReadUInt32();
this.Columns = reader.ReadUInt32();
this.BitsPerPixel = reader.ReadUInt16();
this.ColorMode = (ColorModes)reader.ReadInt16();
}
public byte[] ReadPixels(BinaryPSDReader reader, Compression compression)
{
int bytesPerPixelPerChannel = this._bitsPerPixel / 8; // psd.Header.Depth / 8;
if (bytesPerPixelPerChannel < 1)
{
bytesPerPixelPerChannel = 1;
}
int bytesPerRow = this._width * bytesPerPixelPerChannel;
int totalBytes = bytesPerRow * this._height;
byte[] pData = new byte[totalBytes];
switch (compression)
{
case Compression.None:
reader.Read(pData, 0, totalBytes);
break;
case Compression.Rle:
for (int i = 0; i < this._height; i++)
{
int offset = i * this._width;
int numDecodedBytes = 0;
int numChunks = 0;
while (numDecodedBytes < this._width)
{
numDecodedBytes += Endogine.Serialization.RleCodec.DecodeChunk(reader.BaseStream, pData, offset + numDecodedBytes);
numChunks++;
}
}
break;
case Compression.ZipNoPrediction:
throw (new Exception("ZIP without prediction, no specification"));
case Compression.ZipPrediction:
throw (new Exception("ZIP with prediction, no specification"));
default:
throw (new Exception("Compression not defined: " + compression));
}
return(pData);
}
public byte[] ReadPixels(BinaryPSDReader reader, Compression compression)
{
int bytesPerPixelPerChannel = this._bitsPerPixel / 8; // psd.Header.Depth / 8;
if (bytesPerPixelPerChannel < 1)
bytesPerPixelPerChannel = 1;
int bytesPerRow = this._width * bytesPerPixelPerChannel;
int totalBytes = bytesPerRow * this._height;
byte[] pData = new byte[totalBytes];
switch (compression)
{
case Compression.None:
reader.Read(pData, 0, totalBytes);
break;
case Compression.Rle:
for (int i = 0; i < this._height; i++)
{
int offset = i * this._width;
int numDecodedBytes = 0;
int numChunks = 0;
while (numDecodedBytes < this._width)
{
numDecodedBytes += Endogine.Serialization.RleCodec.DecodeChunk(reader.BaseStream, pData, offset + numDecodedBytes);
numChunks++;
}
}
break;
case Compression.ZipNoPrediction:
throw (new Exception("ZIP without prediction, no specification"));
case Compression.ZipPrediction:
throw (new Exception("ZIP with prediction, no specification"));
default:
throw (new Exception("Compression not defined: " + compression));
}
return pData;
}
