static int Main(string[] args)
{
if (args.Length < 1)
{
Console.WriteLine("Usage: PSD2PAM.exe FILE.psd FILE.pam");
return(1);
}
// read the PSD file
var photochop = new PSDFile();
using (var reading = new FileStream(args[0], FileMode.Open, FileAccess.Read, FileShare.Read))
{
photochop.Read(reading);
var versionInfo = photochop.ImageResources.FirstOrDefault(ir => ir.ID == 0x0421);
if (versionInfo?.Data[4] == 0)
{
// does not have valid precomposed image
Console.WriteLine("PSD2PAM requires that a valid precomposed image is part of the file.");
return(1);
}
int width = photochop.Width;
int height = photochop.Height;
int channelCount = photochop.NumberOfChannels;
int depth = photochop.Depth;
if (depth == 1)
{
Console.WriteLine("PSD2PAM doesn't currently support 1-bit images.");
return(1);
}
long maxValue;
switch (depth)
{
case 8:
maxValue = 0xFF;
break;
case 16:
maxValue = 0xFFFF;
break;
case 32:
maxValue = 0xFFFFFFFF;
break;
default:
Console.WriteLine("Unsupported depth {0}.", depth);
return(1);
}
int bytesPerColorComponent = depth / 8;
string tupleTypeString = "";
switch (photochop.ColorMode)
{
case ColorMode.RGB:
tupleTypeString = "TUPLTYPE RGB\n";
break;
case ColorMode.CMYK:
tupleTypeString = "TUPLTYPE CMYK\n";
break;
case ColorMode.Grayscale:
tupleTypeString = "TUPLTYPE GRAYSCALE\n";
break;
}
string header = string.Format(
CultureInfo.InvariantCulture,
"P7\nWIDTH {0}\nHEIGHT {1}\nDEPTH {2}\nMAXVAL {3}\n{4}ENDHDR\n",
width,
height,
channelCount,
maxValue,
tupleTypeString
);
reading.Seek(photochop.PrecomposedImageData.Offset, SeekOrigin.Begin);
using (var tempFiles = new TemporaryFilesDeleteOnDispose(1 + channelCount))
{
// get planar image
using (var planarImageStorage = new FileStream(tempFiles.FileNames[0],
FileMode.Create, FileAccess.Write, FileShare.None))
using (var zippage = new GZipStream(planarImageStorage, CompressionLevel.Fastest))
{
switch (photochop.PrecomposedImageData.Compression)
{
case CompressionType.RawData:
PixelDataDecoding.DecodeRawData(reading, zippage, null);
break;
case CompressionType.PackBits:
int scanlineCount = height * channelCount;
PixelDataDecoding.DecodePackBits(reading, zippage, scanlineCount, photochop.Version == 2);
break;
case CompressionType.ZipWithoutPrediction:
PixelDataDecoding.DecodeZip(reading, zippage, null);
break;
case CompressionType.ZipWithPrediction:
PixelDataDecoding.DecodeZipPredicted(reading, zippage, null, depth, width);
break;
}
}
// split planar image into plane files
var buf = new byte[width * bytesPerColorComponent];
using (var reader = new FileStream(tempFiles.FileNames[0], FileMode.Open, FileAccess.Read,
FileShare.Read))
using (var unzippage = new GZipStream(reader, CompressionMode.Decompress))
{
for (int c = 0; c < channelCount; ++c)
{
using (var writer = new FileStream(tempFiles.FileNames[1 + c], FileMode.Create,
FileAccess.Write, FileShare.None))
using (var zippage = new GZipStream(writer, CompressionLevel.Fastest))
{
for (int y = 0; y < height; ++y)
{
if (y % 32 == 31)
{
Console.WriteLine("splitting channel {0}/{1} row {2}/{3}", c + 1, channelCount,
y + 1, height);
}
int rd = unzippage.Read(buf, 0, buf.Length);
if (rd < buf.Length)
{
throw new Exception("short read");
}
zippage.Write(buf, 0, buf.Length);
}
}
}
}
using (var streamDisposal = new DisposableStreamGroup())
{
// reopen the planes
for (int c = 0; c < channelCount; ++c)
{
var stream = new FileStream(tempFiles.FileNames[1 + c], FileMode.Open,
FileAccess.Read, FileShare.Read);
var unzipper = new GZipStream(stream, CompressionMode.Decompress, leaveOpen: false);
streamDisposal.Streams.Add(unzipper);
}
// interleave the components
var pixel = new byte[bytesPerColorComponent];
using (var writer = new FileStream(args[1], FileMode.Create, FileAccess.Write))
using (var zipper = new GZipStream(writer, CompressionLevel.Fastest))
using (var bufferer = new BufferedStream(zipper, 8 * 1024 * 1024))
{
// write PAM header
var pamHeaderBytes = header.Select(c => (byte)c).ToArray();
bufferer.Write(pamHeaderBytes, 0, pamHeaderBytes.Length);
// read the pixels
for (int y = 0; y < height; ++y)
{
if (y % 32 == 31)
{
Console.WriteLine("copying row {0}/{1}", y + 1, height);
}
for (int x = 0; x < width; ++x)
{
for (int c = 0; c < channelCount; ++c)
{
int r = streamDisposal.Streams[c].Read(pixel, 0, pixel.Length);
if (r != bytesPerColorComponent)
{
throw new Exception("under-read");
}
// invert color (Photoshop -> PAM)
for (int i = 0; i < pixel.Length; ++i)
{
pixel[i] = (byte)(0xFF - pixel[i]);
}
bufferer.Write(pixel, 0, pixel.Length);
}
}
}
}
}
}
}
return(0);
}
static void Main(string[] args)
{
var psd = new PSDFile();
using (var readStream = new FileStream(args[0], FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
psd.Read(readStream);
}
Console.WriteLine("Version: {0}", psd.Version);
Console.WriteLine("Number of channels: {0}", psd.NumberOfChannels);
Console.WriteLine("Width: {0}", psd.Width);
Console.WriteLine("Height: {0}", psd.Height);
Console.WriteLine("Depth: {0}", psd.Depth);
Console.WriteLine("Color mode: {0}", psd.ColorMode);
Console.WriteLine("Image resources:");
foreach (var res in psd.ImageResources)
{
Console.WriteLine(" Image resource ID: {0}", res.ID);
//Console.WriteLine(" Name: {0}", res.Name);
if (res.ID == ResolutionInfo.ResolutionInfoResourceID)
{
Console.WriteLine(" Binary data:");
for (int rowOffset = 0; rowOffset < res.Data.Length; rowOffset += 8)
{
Console.Write(" ");
for (int i = 0; i < 8 && rowOffset + i < res.Data.Length; ++i)
{
Console.Write("{0:X2} ", res.Data[rowOffset + i]);
}
Console.WriteLine();
}
Console.WriteLine(" Resolution info:");
var resInfo = ResolutionInfo.FromPSD(psd);
Console.WriteLine(" Horizontal resolution: {0} dpi", resInfo.HorizontalResolutionDPI);
Console.WriteLine(" Display unit: {0}", resInfo.HorizontalResolutionDisplayUnit);
Console.WriteLine(" Width display unit: {0}", resInfo.WidthDisplayUnit);
Console.WriteLine(" Vertical resolution: {0} dpi", resInfo.VerticalResolutionDPI);
Console.WriteLine(" Display unit: {0}", resInfo.VerticalResolutionDisplayUnit);
Console.WriteLine(" Height display unit: {0}", resInfo.HeightDisplayUnit);
}
else if (res.ID == VersionInfo.VersionInfoResourceID)
{
var verInfo = VersionInfo.FromPSD(psd);
Console.WriteLine(" Version info:");
Console.WriteLine(" Version: {0}", verInfo.Version);
Console.WriteLine(" {0} valid precomposed data", verInfo.HasValidPrecomposedData ? "Has" : "Does not have");
Console.WriteLine(" Writer: {0}", verInfo.WriterName);
Console.WriteLine(" Reader: {0}", verInfo.ReaderName);
Console.WriteLine(" File version: {0}", verInfo.FileVersion);
}
}
Console.WriteLine("Layers: {0}", psd.Layers.Length);
foreach (PSDLayer layer in psd.Layers)
{
Console.WriteLine(" Layer: {0}", layer.Name);
Console.WriteLine(" Channels: {0}", layer.Channels.Length);
foreach (PSDLayerChannel chan in layer.Channels)
{
Console.WriteLine(" {0} ({1} bytes {2} from 0x{3:x})", chan.ID, chan.Data.DataLength, chan.Data.Compression, chan.Data.Offset);
}
Console.WriteLine(" Additional layer information: {0} entries", layer.AdditionalInformation.Count);
foreach (PSDAdditionalLayerInformation pali in layer.AdditionalInformation)
{
Console.WriteLine(" Key: {0}", pali.Key);
Console.WriteLine(" Data length: {0}", pali.Data.Length);
}
}
if (psd.GlobalLayerMask != null)
{
var glm = psd.GlobalLayerMask;
Console.WriteLine("Global layer mask:");
Console.WriteLine(" Overlay color space: {0}", glm.OverlayColorSpace);
Console.WriteLine(" Color components: {0}, {1}, {2}, {3}", glm.ColorComponent1, glm.ColorComponent2, glm.ColorComponent3, glm.ColorComponent4);
Console.WriteLine(" Opacity: {0}", glm.Opacity);
Console.WriteLine(" Kind: {0}", glm.Kind);
}
else
{
Console.WriteLine("No global layer mask");
}
Console.WriteLine("Additional layer information: {0} entries", psd.AdditionalLayerInformation.Count);
foreach (PSDAdditionalLayerInformation ali in psd.AdditionalLayerInformation)
{
Console.WriteLine(" Key: {0}", ali.Key);
Console.WriteLine(" Data length: {0}", ali.Data.Length);
}
if (psd.PrecomposedImageData == null)
{
Console.WriteLine("No precomposed image data");
}
else
{
Console.WriteLine("Precomposed image data: {0} from 0x{1:x}", psd.PrecomposedImageData.Compression, psd.PrecomposedImageData.Offset);
}
if (args.Length > 1 && args[1] == "-d")
{
// decode
for (int l = 0; l < psd.Layers.Length; ++l)
{
PSDLayer layer = psd.Layers[l];
foreach (PSDLayerChannel chan in layer.Channels)
{
Console.WriteLine("extracting layer {0} channel {1} ({2})", l, chan.ID, chan.Data.Compression);
string name = $"{args[0]}.l{l}c{chan.ID}.bin";
using (var reader = new FileStream(args[0], FileMode.Open, FileAccess.Read, FileShare.Read))
using (var writer = new FileStream(name, FileMode.Create, FileAccess.Write, FileShare.None))
{
reader.Seek(chan.Data.Offset, SeekOrigin.Begin);
switch (chan.Data.Compression)
{
case CompressionType.RawData:
PixelDataDecoding.DecodeRawData(
reader,
writer,
chan.Data.DataLength
);
break;
case CompressionType.PackBits:
PixelDataDecoding.DecodePackBits(
reader,
writer,
scanlineCount: layer.Bottom - layer.Top,
fourByteLengths: psd.Version == 2
);
break;
case CompressionType.ZipWithoutPrediction:
PixelDataDecoding.DecodeZip(
reader,
writer,
chan.Data.DataLength
);
break;
case CompressionType.ZipWithPrediction:
PixelDataDecoding.DecodeZipPredicted(
reader,
writer,
chan.Data.DataLength,
psd.Depth,
psd.Width
);
break;
}
}
}
}
if (psd.PrecomposedImageData != null)
{
string compositeName = $"{args[0]}.composite.bin";
using (var reader = new FileStream(args[0], FileMode.Open, FileAccess.Read, FileShare.Read))
using (var writer = new FileStream(compositeName, FileMode.Create, FileAccess.Write, FileShare.None))
{
reader.Seek(psd.PrecomposedImageData.Offset, SeekOrigin.Begin);
switch (psd.PrecomposedImageData.Compression)
{
case CompressionType.RawData:
PixelDataDecoding.DecodeRawData(
reader,
writer,
length: null
);
break;
case CompressionType.PackBits:
PixelDataDecoding.DecodePackBits(
reader,
writer,
scanlineCount: psd.Height * psd.NumberOfChannels,
fourByteLengths: psd.Version == 2
);
break;
case CompressionType.ZipWithoutPrediction:
PixelDataDecoding.DecodeZip(
reader,
writer,
length: null
);
break;
case CompressionType.ZipWithPrediction:
PixelDataDecoding.DecodeZipPredicted(
reader,
writer,
length: null,
depth: psd.Depth,
imageWidth: psd.Width
);
break;
}
}
}
}
}
