/// <summary>
/// Store layer metadata and image data.
/// </summary>
public static void StoreLayer(BitmapLayer layer,
PhotoshopFile.Layer psdLayer, PsdSaveConfigToken psdToken)
{
// Set layer metadata
psdLayer.Name = layer.Name;
psdLayer.Rect = FindImageRectangle(layer.Surface);
psdLayer.BlendModeKey = PsdBlendMode.Normal;
psdLayer.Opacity = layer.Opacity;
psdLayer.Visible = layer.Visible;
psdLayer.Masks = new MaskInfo();
psdLayer.BlendingRangesData = new BlendingRanges(psdLayer);
// Store channel metadata
int layerSize = psdLayer.Rect.Width * psdLayer.Rect.Height;
for (int i = -1; i < 3; i++)
{
var ch = new Channel((short)i, psdLayer);
ch.ImageCompression = psdToken.RleCompress ? ImageCompression.Rle : ImageCompression.Raw;
ch.ImageData = new byte[layerSize];
psdLayer.Channels.Add(ch);
}
// Store and compress channel image data
var channelsArray = psdLayer.Channels.ToIdArray();
StoreLayerImage(channelsArray, psdLayer.AlphaChannel, layer.Surface, psdLayer.Rect);
}
protected PsdSaveConfigToken(PsdSaveConfigToken copyMe)
{
this.RleCompress = copyMe.RleCompress;
}
public static void Save(Document input, Stream output, PsdSaveConfigToken psdToken,
Surface scratchSurface, ProgressEventHandler progressCallback)
{
var psdVersion = ((input.Height > 30000) || (input.Width > 30000))
? PsdFileVersion.PsbLargeDocument
: PsdFileVersion.Psd;
var psdFile = new PsdFile(psdVersion);
psdFile.RowCount = input.Height;
psdFile.ColumnCount = input.Width;
// We only save in RGBA format, 8 bits per channel, which corresponds to
// Paint.NET's internal representation.
psdFile.ChannelCount = 4;
psdFile.ColorMode = PsdColorMode.RGB;
psdFile.BitDepth = 8;
psdFile.ImageCompression = psdToken.RleCompress
? ImageCompression.Rle
: ImageCompression.Raw;
// Treat the composite image as another layer when reporting progress.
var progress = new ProgressNotifier(progressCallback);
var percentPerLayer = percentStoreImages
/ (input.Layers.Count + 1);
// Render the composite image. This operation is parallelized within
// Paint.NET using its own private thread pool.
using (var ra = new RenderArgs(scratchSurface))
{
input.Flatten(scratchSurface);
progress.Notify(percentRenderComposite);
}
// Delegate to store the composite
Action storeCompositeAction = () =>
{
// Allocate space for the composite image data
int imageSize = psdFile.RowCount * psdFile.ColumnCount;
for (short i = 0; i < psdFile.ChannelCount; i++)
{
var channel = new Channel(i, psdFile.BaseLayer);
channel.ImageData = new byte[imageSize];
channel.ImageCompression = psdFile.ImageCompression;
psdFile.BaseLayer.Channels.Add(channel);
}
var channelsArray = psdFile.BaseLayer.Channels.ToIdArray();
StoreLayerImage(channelsArray, channelsArray[3],
scratchSurface, psdFile.BaseLayer.Rect);
progress.Notify(percentPerLayer);
};
// Delegate to store the layers
Action storeLayersAction = () =>
{
// LayerList is an ArrayList, so we have to cast to get a generic
// IEnumerable that works with LINQ.
var pdnLayers = input.Layers.Cast <BitmapLayer>();
var psdLayers = pdnLayers.AsParallel().AsOrdered().Select(pdnLayer =>
{
var psdLayer = new PhotoshopFile.Layer(psdFile);
StoreLayer(pdnLayer, psdLayer, psdToken);
progress.Notify(percentPerLayer);
return(psdLayer);
});
psdFile.Layers.AddRange(psdLayers);
};
// Process composite and layers in parallel
Parallel.Invoke(storeCompositeAction, storeLayersAction);
psdFile.Save(output, Encoding.Default);
}