public virtual void Dispose()
{
if (WicEncoderFrame is null)
{
return;
}
WicEncoderFrame->Release();
WicEncoderFrame = null;
}
public WicImageEncoderFrame(PipelineContext ctx, WicImageEncoder encoder, PixelArea area = default)
{
var fmt = ctx.Settings.SaveFormat;
var encArea = area.IsEmpty ? ctx.Source.Area : area;
var colorMode = ctx.Settings.ColorProfileMode;
using var frame = default(ComPtr <IWICBitmapFrameEncode>);
using (var pbag = default(ComPtr <IPropertyBag2>))
{
HRESULT.Check(encoder.WicEncoder->CreateNewFrame(frame.GetAddressOf(), pbag.GetAddressOf()));
if (fmt == FileFormat.Jpeg)
{
pbag.Write("ImageQuality", ctx.Settings.JpegQuality / 100f);
}
if (fmt == FileFormat.Jpeg && ctx.Settings.JpegSubsampleMode != ChromaSubsampleMode.Default)
{
pbag.Write("JpegYCrCbSubsampling", (byte)ctx.Settings.JpegSubsampleMode);
}
if (fmt == FileFormat.Tiff)
{
pbag.Write("TiffCompressionMethod", (byte)WICTiffCompressionOption.WICTiffCompressionNone);
}
if (fmt == FileFormat.Bmp && ctx.Source.Format.AlphaRepresentation != PixelAlphaRepresentation.None)
{
pbag.Write("EnableV5Header32bppBGRA", true);
}
HRESULT.Check(frame.Get()->Initialize(pbag));
}
HRESULT.Check(frame.Get()->SetSize((uint)encArea.Width, (uint)encArea.Height));
HRESULT.Check(frame.Get()->SetResolution(ctx.Settings.DpiX > 0d ? ctx.Settings.DpiX : ctx.ImageFrame.DpiX, ctx.Settings.DpiY > 0d ? ctx.Settings.DpiY : ctx.ImageFrame.DpiY));
bool copySourceMetadata = ctx.ImageFrame is WicImageFrame srcFrame && srcFrame.WicMetadataReader is not null && ctx.Settings.MetadataNames != Enumerable.Empty <string>();
bool writeOrientation = ctx.Settings.OrientationMode == OrientationMode.Preserve && ctx.ImageFrame.ExifOrientation != Orientation.Normal;
bool writeColorContext = colorMode == ColorProfileMode.NormalizeAndEmbed || colorMode == ColorProfileMode.Preserve || (colorMode == ColorProfileMode.Normalize && ctx.DestColorProfile != ColorProfile.sRGB && ctx.DestColorProfile != ColorProfile.sGrey);
using var metawriter = default(ComPtr <IWICMetadataQueryWriter>);
if ((copySourceMetadata || writeOrientation) && SUCCEEDED(frame.Get()->GetMetadataQueryWriter(metawriter.GetAddressOf())))
{
if (copySourceMetadata)
{
var wicFrame = (WicImageFrame)ctx.ImageFrame;
foreach (string prop in ctx.Settings.MetadataNames)
{
var pv = default(PROPVARIANT);
if (SUCCEEDED(wicFrame.WicMetadataReader->GetMetadataByName(prop, &pv)) && pv.vt != (ushort)VARENUM.VT_EMPTY)
{
_ = metawriter.Get()->SetMetadataByName(prop, &pv);
}
}
}
if (writeOrientation)
{
string orientationPath = ctx.Settings.SaveFormat == FileFormat.Jpeg ? Wic.Metadata.OrientationJpeg : Wic.Metadata.OrientationExif;
var pv = new PROPVARIANT {
vt = (ushort)VARENUM.VT_UI2
};
pv.Anonymous.uiVal = (ushort)ctx.ImageFrame.ExifOrientation;
_ = metawriter.Get()->SetMetadataByName(orientationPath, &pv);
}
}
if (writeColorContext)
{
Debug.Assert(ctx.WicContext.DestColorContext is not null || ctx.DestColorProfile is not null);
var cc = ctx.WicContext.DestColorContext;
if (ctx.DestColorProfile == ColorProfile.sRGB)
{
cc = WicColorProfile.SrgbCompact.Value.WicColorContext;
}
else if (ctx.DestColorProfile == ColorProfile.sGrey)
{
cc = WicColorProfile.GreyCompact.Value.WicColorContext;
}
else if (ctx.DestColorProfile == ColorProfile.AdobeRgb)
{
cc = WicColorProfile.AdobeRgb.Value.WicColorContext;
}
else if (ctx.DestColorProfile == ColorProfile.DisplayP3)
{
cc = WicColorProfile.DisplayP3Compact.Value.WicColorContext;
}
using var ccc = default(ComPtr <IWICColorContext>);
if (cc is null)
{
ccc.Attach(WicColorProfile.CreateContextFromProfile(ctx.DestColorProfile !.ProfileBytes));
cc = ccc;
}
_ = frame.Get()->SetColorContexts(1, &cc);
}
WicEncoderFrame = frame.Detach();
}
public int WriteFrameThumbnail(ID2D1Image *pImage, IWICBitmapFrameEncode *pFrameEncode, [NativeTypeName("const WICImageParameters *")] WICImageParameters *pImageParameters)
{
return(((delegate * unmanaged <IWICImageEncoder *, ID2D1Image *, IWICBitmapFrameEncode *, WICImageParameters *, int>)(lpVtbl[4]))((IWICImageEncoder *)Unsafe.AsPointer(ref this), pImage, pFrameEncode, pImageParameters));
}
