public override HeaderSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var buffer = reader.ReadBytes(26);
var bufferedReader = new PhotoshopFileReader(buffer);
var signatureBytes = bufferedReader.ReadBytes(4);
var signature = Encoding.ASCII.GetString(signatureBytes);
var version = bufferedReader.ReadInt16();
var reservedBytes = bufferedReader.ReadBytes(6);
var channelCount = bufferedReader.ReadInt16();
var height = bufferedReader.ReadInt32();
var width = bufferedReader.ReadInt32();
var depth = bufferedReader.ReadInt16();
var colorMode = (ColorMode)bufferedReader.ReadInt16();
return(new HeaderSection(
signature,
version,
reservedBytes,
channelCount,
height,
width,
depth,
colorMode
));
}
public override ColorModeDataSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var length = reader.ReadInt32();
var data = reader.ReadBytes(length);
return(new ColorModeDataSection(length, data));
}
public override ImageResourcesSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var length = reader.ReadInt32();
var data = reader.ReadBytes(length);
return(new ImageResourcesSection(length, data));
}
public override LayerMaskInformationSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var length = reader.ReadInt32();
var data = reader.ReadBytes(length);
return(new PsdLayerMaskInformationSection(length, data));
}
public override LayerMaskInformationSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var length = reader.ReadInt64();
// TODO: Don't just convert to int pls
var data = reader.ReadBytes((int)length);
return(new PsbLayerMaskInformationSection(length, data));
}
public override ImageDataSection Read(PhotoshopFileReader reader, PhotoshopFile photoshopFile)
{
var channelCount = photoshopFile.ChannelCount;
var width = photoshopFile.Width;
var height = photoshopFile.Height;
var depth = photoshopFile.Depth;
var compressionMethod = reader.ReadInt16();
var dataLength = 0;
var pitch = DepthToPitch(depth, width);
byte[] data;
if (compressionMethod == 0)
{
for (var i = 0; i < channelCount; i++)
{
dataLength += pitch * height;
}
data = reader.ReadBytes(dataLength);
}
else if (compressionMethod == 1)
{
var dataBuffer = new List <byte>();
var channelLengths = new List <int[]>();
for (var i = 0; i < channelCount; i++)
{
var lengths = new int[height];
for (var j = 0; j < height; j++)
{
lengths[j] = photoshopFile.Version == 1
? reader.ReadInt16()
: reader.ReadInt32();
}
channelLengths.Add(lengths);
}
for (int i = 0; i < channelCount; i++)
{
var lengths = channelLengths[i];
for (var j = 0; j < lengths.Length; j++)
{
var rleData = reader.ReadBytes(lengths[j]);
var decompressedData = new byte[width];
DecompressRleData(rleData, decompressedData);
dataBuffer.AddRange(decompressedData);
}
}
data = dataBuffer.ToArray();
}
else
{
throw new NotImplementedException();
}
return(new ImageDataSection(compressionMethod, data));
}
public abstract T Read([NotNull] PhotoshopFileReader reader, [NotNull] PhotoshopFile photoshopFile);
