private static ProcessImageResult processImage(PipelineContext ctx, Stream ostm)
{
var frame = (WicImageFrame)ctx.ImageContainer.GetFrame(ctx.Settings.FrameIndex);
ctx.AddFrameDisposer();
ctx.ImageFrame = frame;
ctx.Source = frame.Source;
MagicTransforms.AddGifFrameBuffer(ctx);
ctx.FinalizeSettings();
WicTransforms.AddColorProfileReader(ctx);
WicTransforms.AddNativeScaler(ctx);
WicTransforms.AddExifFlipRotator(ctx);
WicTransforms.AddCropper(ctx);
WicTransforms.AddPixelFormatConverter(ctx);
WicTransforms.AddHybridScaler(ctx);
WicTransforms.AddScaler(ctx);
WicTransforms.AddColorspaceConverter(ctx);
MagicTransforms.AddMatte(ctx);
MagicTransforms.AddPad(ctx);
WicTransforms.AddIndexedColorConverter(ctx);
using var enc = new WicImageEncoder(ctx.Settings.SaveFormat, ostm);
using var frm = new WicImageEncoderFrame(ctx, enc);
frm.WriteSource(ctx);
enc.Commit();
return(new ProcessImageResult(ctx.UsedSettings, ctx.Stats));
}
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;
var bag = default(IPropertyBag2);
encoder.WicEncoder.CreateNewFrame(out var frame, ref bag);
encoderFrame = ComHandle.Wrap(frame);
using (var cbag = ComHandle.Wrap(bag))
{
if (fmt == FileFormat.Jpeg)
{
bag.Write("ImageQuality", ctx.Settings.JpegQuality / 100f);
}
if (fmt == FileFormat.Jpeg && ctx.Settings.JpegSubsampleMode != ChromaSubsampleMode.Default)
{
bag.Write("JpegYCrCbSubsampling", (byte)ctx.Settings.JpegSubsampleMode);
}
if (fmt == FileFormat.Tiff)
{
bag.Write("TiffCompressionMethod", (byte)WICTiffCompressionOption.WICTiffCompressionNone);
}
if (fmt == FileFormat.Bmp && ctx.Source.Format.AlphaRepresentation != PixelAlphaRepresentation.None)
{
bag.Write("EnableV5Header32bppBGRA", true);
}
frame.Initialize(bag);
}
frame.SetSize((uint)encArea.Width, (uint)encArea.Height);
frame.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);
if ((copySourceMetadata || writeOrientation) && frame.TryGetMetadataQueryWriter(out var metawriter))
{
using var cmeta = ComHandle.Wrap(metawriter);
if (copySourceMetadata)
{
var wicFrame = (WicImageFrame)ctx.ImageFrame;
foreach (string prop in ctx.Settings.MetadataNames)
{
if (wicFrame.WicMetadataReader !.TryGetMetadataByName(prop, out var pvar) && pvar.Value is not null)
{
metawriter.TrySetMetadataByName(prop, pvar);
}
}
}
if (writeOrientation)
{
string orientationPath = ctx.Settings.SaveFormat == FileFormat.Jpeg ? Wic.Metadata.OrientationJpeg : Wic.Metadata.OrientationExif;
metawriter.TrySetMetadataByName(orientationPath, new PropVariant((ushort)ctx.ImageFrame.ExifOrientation));
}
}
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;
}
frame.TrySetColorContexts(cc ?? ctx.WicContext.AddRef(WicColorProfile.CreateContextFromProfile(ctx.DestColorProfile !.ProfileBytes)));
}
}
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 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;
}
// WIC writes gAMA and cHRM tags along with iCCP when SetColorContexts is called on a PNG frame.
// Chromium ignores the iCCP tag if the others are present, so we try to write it alone explicitly.
if (fmt == FileFormat.Png && ctx.DestColorProfile is not null && metawriter.Get() is not null)
{
var name = (ReadOnlySpan <byte>) new[] { (byte)'I', (byte)'C', (byte)'C', (byte)'\0' };
fixed(byte *pprofile = ctx.DestColorProfile.ProfileBytes)
{
var pvn = new PROPVARIANT {
vt = (ushort)VARENUM.VT_LPSTR
};
pvn.Anonymous.pszVal = (sbyte *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(name));
_ = metawriter.Get()->SetMetadataByName(Wic.Metadata.Png.IccProfileName, &pvn);
var pvv = new PROPVARIANT {
vt = (ushort)(VARENUM.VT_UI1 | VARENUM.VT_VECTOR)
};
pvv.Anonymous.blob.pBlobData = pprofile;
pvv.Anonymous.blob.cbSize = (uint)ctx.DestColorProfile.ProfileBytes.Length;
_ = metawriter.Get()->SetMetadataByName(Wic.Metadata.Png.IccProfileData, &pvv);
}
}
else
{
using var ccc = default(ComPtr <IWICColorContext>);
if (cc is null)
{
ccc.Attach(WicColorProfile.CreateContextFromProfile(ctx.DestColorProfile !.ProfileBytes));
cc = ccc;
}
_ = frame.Get()->SetColorContexts(1, &cc);
}
}
