public static ProcessImageResult ProcessImage(Stream imgStream, Stream outStream, ProcessImageSettings settings)
{
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
return(processImage(ctx, outStream));
}
public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgBuffer, ctx.WicContext);
return(processImage(ctx, outStream));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgStream">A stream containing a supported input image container. The stream must allow Seek and Read.</param>
public static ProcessingPipeline BuildPipeline(Stream imgStream, ProcessImageSettings settings)
{
checkInStream(imgStream);
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="ProcessImage(string, Stream, ProcessImageSettings)" />
/// <param name="imgStream">A stream containing a supported input image container. The stream must allow Seek and Read.</param>
public static ProcessImageResult ProcessImage(Stream imgStream, Stream outStream, ProcessImageSettings settings)
{
checkInStream(imgStream);
checkOutStream(outStream);
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
buildPipeline(ctx);
return(WriteOutput(ctx, outStream));
}
public static WicImageContainer Load(Stream inStream)
{
var gch = GCHandle.Alloc(inStream);
var sti = new IStreamImpl(gch);
using var ccw = new SafeHandleReleaser(new SafeComCallable <IStreamImpl>(sti));
var dec = createDecoder((IStream *)ccw.Handle !.DangerousGetHandle());
return(WicImageContainer.Create(dec, ccw.Detach()));
}
/// <summary>Constructs a new <see cref="ImageFileInfo" /> instance by reading the metadata from an image file contained in a <see cref="ReadOnlySpan{T}" />.</summary>
/// <param name="imgBuffer">The buffer containing the image data.</param>
/// <param name="lastModified">The last modified date of the image container.</param>
public static ImageFileInfo Load(ReadOnlySpan <byte> imgBuffer, DateTime lastModified)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
using var ctx = new PipelineContext(new ProcessImageSettings());
ctx.ImageContainer = WicImageContainer.Create(imgBuffer, ctx.WicContext);
return(fromWicImage(ctx, imgBuffer.Length, lastModified));
}
public static WicImageContainer Load(string fileName)
{
using var stm = default(ComPtr <IWICStream>);
HRESULT.Check(Wic.Factory->CreateStream(stm.GetAddressOf()));
fixed(char *pname = fileName)
HRESULT.Check(stm.Get()->InitializeFromFilename((ushort *)pname, GENERIC_READ));
var dec = createDecoder((IStream *)stm.Get());
return(WicImageContainer.Create(dec));
}
/// <summary>Constructs a new <see cref="ImageFileInfo" /> instance by reading the metadata from an image file header.</summary>
/// <param name="imgPath">The path to the image file.</param>
public static ImageFileInfo Load(string imgPath)
{
var fi = new FileInfo(imgPath);
if (!fi.Exists)
{
throw new FileNotFoundException("File not found", imgPath);
}
using var ctx = new PipelineContext(new ProcessImageSettings());
ctx.ImageContainer = WicImageContainer.Create(imgPath, ctx.WicContext);
return(fromWicImage(ctx, fi.Length, fi.LastWriteTimeUtc));
}
/// <summary>All-in-one processing of an image according to the specified <paramref name="settings" />.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="outStream">The stream to which the output image will be written. The stream must allow Seek and Write.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessImageResult" /> containing the settings used and basic instrumentation for the pipeline.</returns>
public static ProcessImageResult ProcessImage(string imgPath, Stream outStream, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
checkOutStream(outStream);
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgPath, ctx.WicContext);
buildPipeline(ctx);
return(WriteOutput(ctx, outStream));
}
#pragma warning disable 1573 // not all params have docs
/// <inheritdoc cref="ProcessImage(string, Stream, ProcessImageSettings)" />
/// <param name="imgBuffer">A buffer containing a supported input image container.</param>
public static ProcessImageResult ProcessImage(ReadOnlySpan <byte> imgBuffer, Stream outStream, ProcessImageSettings settings)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
checkOutStream(outStream);
using var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgBuffer, ctx.WicContext);
buildPipeline(ctx);
return(WriteOutput(ctx, outStream));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgBuffer">A buffer containing a supported input image container.</param>
public static ProcessingPipeline BuildPipeline(ReadOnlySpan <byte> imgBuffer, ProcessImageSettings settings)
{
if (imgBuffer == default)
{
throw new ArgumentNullException(nameof(imgBuffer));
}
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgBuffer, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <summary>Constructs a new processing pipeline from which pixels can be retrieved.</summary>
/// <param name="imgPath">The path to a file containing the input image.</param>
/// <param name="settings">The settings for this processing operation.</param>
/// <returns>A <see cref="ProcessingPipeline" /> containing the <see cref="IPixelSource" />, settings used, and basic instrumentation for the pipeline.</returns>
public static ProcessingPipeline BuildPipeline(string imgPath, ProcessImageSettings settings)
{
if (imgPath is null)
{
throw new ArgumentNullException(nameof(imgPath));
}
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgPath, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
/// <inheritdoc cref="BuildPipeline(string, ProcessImageSettings)" />
/// <param name="imgStream">A stream containing a supported input image container. The stream must allow Seek and Read.</param>
public static ProcessingPipeline BuildPipeline(Stream imgStream, ProcessImageSettings settings)
{
if (settings is null)
{
throw new ArgumentNullException(nameof(settings));
}
checkInStream(imgStream);
var ctx = new PipelineContext(settings);
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
buildPipeline(ctx, false);
return(new ProcessingPipeline(ctx));
}
unsafe public static WicImageContainer Load(byte *pbBuffer, int cbBuffer, PipelineContext ctx, bool ownCopy = false)
{
var istm = ctx.WicContext.AddRef(Wic.Factory.CreateStream());
var ptr = (IntPtr)pbBuffer;
if (ownCopy)
{
ptr = ctx.WicContext.AddUnmanagedMemory(cbBuffer).DangerousGetHandle();
Buffer.MemoryCopy(pbBuffer, ptr.ToPointer(), cbBuffer, cbBuffer);
}
istm.InitializeFromMemory(ptr, (uint)cbBuffer);
var dec = createDecoder(stm => Wic.Factory.CreateDecoderFromStream(stm, null, WICDecodeOptions.WICDecodeMetadataCacheOnDemand), istm);
return(WicImageContainer.Create(dec, ctx));
}
public static WicImageContainer Load(byte *pbBuffer, int cbBuffer, bool ownCopy = false)
{
using var stream = default(ComPtr <IWICStream>);
HRESULT.Check(Wic.Factory->CreateStream(stream.GetAddressOf()));
var ptr = (IntPtr)pbBuffer;
using var mem = default(SafeHandleReleaser);
if (ownCopy)
{
ptr = mem.Attach(new SafeHGlobalHandle(cbBuffer)).DangerousGetHandle();
Buffer.MemoryCopy(pbBuffer, ptr.ToPointer(), cbBuffer, cbBuffer);
}
HRESULT.Check(stream.Get()->InitializeFromMemory((byte *)ptr, (uint)cbBuffer));
var dec = createDecoder((IStream *)stream.Get());
return(WicImageContainer.Create(dec, mem.Detach()));
}
/// <summary>Constructs a new <see cref="ImageFileInfo" /> instance by reading the metadata from an image file exposed by a <see cref="Stream" />.</summary>
/// <param name="imgStream">The stream containing the image data.</param>
/// <param name="lastModified">The last modified date of the image container.</param>
public static ImageFileInfo Load(Stream imgStream, DateTime lastModified)
{
if (imgStream is null)
{
throw new ArgumentNullException(nameof(imgStream));
}
if (!imgStream.CanSeek || !imgStream.CanRead)
{
throw new ArgumentException("Input Stream must allow Seek and Read", nameof(imgStream));
}
if (imgStream.Length <= 0 || imgStream.Position >= imgStream.Length)
{
throw new ArgumentException("Input Stream is empty or positioned at its end", nameof(imgStream));
}
using var ctx = new PipelineContext(new ProcessImageSettings());
ctx.ImageContainer = WicImageContainer.Create(imgStream, ctx.WicContext);
return(fromWicImage(ctx, imgStream.Length, lastModified));
}
public static WicImageContainer Load(Stream inStream, PipelineContext ctx)
{
var dec = createDecoder(stm => Wic.Factory.CreateDecoderFromStream(stm, null, WICDecodeOptions.WICDecodeMetadataCacheOnDemand), inStream.AsIStream());
return(WicImageContainer.Create(dec, ctx));
}
public static WicImageContainer Load(string fileName, PipelineContext ctx)
{
var dec = createDecoder(fn => Wic.Factory.CreateDecoderFromFilename(fn, null, GenericAccessRights.GENERIC_READ, WICDecodeOptions.WICDecodeMetadataCacheOnDemand), fileName);
return(WicImageContainer.Create(dec, ctx));
}
public WicImageFrame(WicImageContainer decoder, uint index)
{
Container = decoder;
using var frame = default(ComPtr <IWICBitmapFrameDecode>);
HRESULT.Check(decoder.WicDecoder->GetFrame(index, frame.GetAddressOf()));
using var source = new ComPtr <IWICBitmapSource>((IWICBitmapSource *)frame.Get());
double dpix, dpiy;
HRESULT.Check(frame.Get()->GetResolution(&dpix, &dpiy));
(DpiX, DpiY) = (dpix, dpiy);
uint frameWidth, frameHeight;
HRESULT.Check(frame.Get()->GetSize(&frameWidth, &frameHeight));
using var metareader = default(ComPtr <IWICMetadataQueryReader>);
if (SUCCEEDED(frame.Get()->GetMetadataQueryReader(metareader.GetAddressOf())))
{
string orientationPath =
MagicImageProcessor.EnableXmpOrientation ? Wic.Metadata.OrientationWindowsPolicy :
Container.ContainerFormat == FileFormat.Jpeg ? Wic.Metadata.OrientationJpeg :
Wic.Metadata.OrientationExif;
ExifOrientation = ((Orientation)metareader.GetValueOrDefault <ushort>(orientationPath)).Clamp();
WicMetadataReader = metareader.Detach();
}
using var preview = default(ComPtr <IWICBitmapSource>);
if (decoder.IsRawContainer && index == 0 && SUCCEEDED(decoder.WicDecoder->GetPreview(preview.GetAddressOf())))
{
uint pw, ph;
HRESULT.Check(preview.Get()->GetSize(&pw, &ph));
if (pw == frameWidth && ph == frameHeight)
{
source.Attach(preview.Detach());
}
}
using var transform = default(ComPtr <IWICBitmapSourceTransform>);
if (SUCCEEDED(source.Get()->QueryInterface(__uuidof <IWICBitmapSourceTransform>(), (void **)transform.GetAddressOf())))
{
uint tw = 1, th = 1;
HRESULT.Check(transform.Get()->GetClosestSize(&tw, &th));
SupportsNativeScale = tw < frameWidth || th < frameHeight;
}
using var ptransform = default(ComPtr <IWICPlanarBitmapSourceTransform>);
if (SUCCEEDED(source.Get()->QueryInterface(__uuidof <IWICPlanarBitmapSourceTransform>(), (void **)ptransform.GetAddressOf())))
{
var fmts = WicTransforms.PlanarPixelFormats;
var desc = stackalloc WICBitmapPlaneDescription[fmts.Length];
fixed(Guid *pfmt = fmts)
{
uint tw = frameWidth, th = frameHeight, st = 0;
HRESULT.Check(ptransform.Get()->DoesSupportTransform(
&tw, &th,
WICBitmapTransformOptions.WICBitmapTransformRotate0, WICPlanarOptions.WICPlanarOptionsDefault,
pfmt, desc, (uint)fmts.Length, (int *)&st
));
SupportsPlanarProcessing = st != 0;
}
ChromaSubsampling =
desc[1].Width < desc[0].Width && desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling420 :
desc[1].Width < desc[0].Width ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling422 :
desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling440 :
WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling444;
}
var guid = default(Guid);
HRESULT.Check(source.Get()->GetPixelFormat(&guid));
if (PixelFormat.FromGuid(guid).NumericRepresentation == PixelNumericRepresentation.Indexed)
{
var newFormat = PixelFormat.Bgr24Bpp;
if (Container.ContainerFormat == FileFormat.Gif && Container.FrameCount > 1)
{
newFormat = PixelFormat.Bgra32Bpp;
}
else
{
using var pal = default(ComPtr <IWICPalette>);
HRESULT.Check(Wic.Factory->CreatePalette(pal.GetAddressOf()));
HRESULT.Check(source.Get()->CopyPalette(pal));
int bval;
if (SUCCEEDED(pal.Get()->HasAlpha(&bval)) && bval != 0)
{
newFormat = PixelFormat.Bgra32Bpp;
}
else if ((SUCCEEDED(pal.Get()->IsGrayscale(&bval)) && bval != 0) || (SUCCEEDED(pal.Get()->IsBlackWhite(&bval)) && bval != 0))
{
newFormat = PixelFormat.Grey8Bpp;
}
}
var nfmt = newFormat.FormatGuid;
using var conv = default(ComPtr <IWICFormatConverter>);
HRESULT.Check(Wic.Factory->CreateFormatConverter(conv.GetAddressOf()));
HRESULT.Check(conv.Get()->Initialize(source, &nfmt, WICBitmapDitherType.WICBitmapDitherTypeNone, null, 0.0, WICBitmapPaletteType.WICBitmapPaletteTypeCustom));
source.Attach((IWICBitmapSource *)conv.Detach());
}
WicFrame = frame.Detach();
WicSource = source.Detach();
}
public WicImageFrame(WicImageContainer decoder, uint index)
{
if (index >= (uint)decoder.FrameCount)
{
throw new IndexOutOfRangeException("Frame index does not exist");
}
WicFrame = comHandles.AddRef(decoder.WicDecoder.GetFrame(index));
WicSource = WicFrame;
WicFrame.GetSize(out uint frameWidth, out uint frameHeight);
container = decoder;
if (decoder.IsRawContainer && index == 0 && decoder.WicDecoder.TryGetPreview(out var preview))
{
using var pvwSource = new ComHandle <IWICBitmapSource>(preview);
preview.GetSize(out uint pw, out uint ph);
if (pw == frameWidth && ph == frameHeight)
{
WicSource = comHandles.AddOwnRef(preview);
}
}
WicFrame.GetResolution(out double dpix, out double dpiy);
DpiX = dpix;
DpiY = dpiy;
if (PixelFormat.FromGuid(WicSource.GetPixelFormat()).NumericRepresentation == PixelNumericRepresentation.Indexed)
{
var pal = comHandles.AddRef(Wic.Factory.CreatePalette());
WicSource.CopyPalette(pal);
var newFormat = Consts.GUID_WICPixelFormat24bppBGR;
if (pal.HasAlpha())
{
newFormat = Consts.GUID_WICPixelFormat32bppBGRA;
}
else if (pal.IsGrayscale() || pal.IsBlackWhite())
{
newFormat = Consts.GUID_WICPixelFormat8bppGray;
}
var conv = comHandles.AddRef(Wic.Factory.CreateFormatConverter());
conv.Initialize(WicSource, newFormat, WICBitmapDitherType.WICBitmapDitherTypeNone, null, 0.0, WICBitmapPaletteType.WICBitmapPaletteTypeCustom);
WicSource = conv;
}
if (WicSource is IWICBitmapSourceTransform trans)
{
uint pw = 1, ph = 1;
trans.GetClosestSize(ref pw, ref ph);
SupportsNativeScale = pw < frameWidth || ph < frameHeight;
SupportsNativeTransform = trans.DoesSupportTransform(WICBitmapTransformOptions.WICBitmapTransformRotate270);
}
if (WicSource is IWICPlanarBitmapSourceTransform ptrans)
{
var desc = ArrayPool <WICBitmapPlaneDescription> .Shared.Rent(WicTransforms.PlanarPixelFormats.Length);
SupportsPlanarProcessing = ptrans.DoesSupportTransform(ref frameWidth, ref frameHeight, WICBitmapTransformOptions.WICBitmapTransformRotate0, WICPlanarOptions.WICPlanarOptionsDefault, WicTransforms.PlanarPixelFormats, desc, (uint)WicTransforms.PlanarPixelFormats.Length);
ChromaSubsampling =
desc[1].Width < desc[0].Width && desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling420 :
desc[1].Width < desc[0].Width ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling422 :
desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling440 :
WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling444;
ArrayPool <WICBitmapPlaneDescription> .Shared.Return(desc);
}
if (WicFrame.TryGetMetadataQueryReader(out var metareader))
{
WicMetadataReader = comHandles.AddRef(metareader);
string orientationPath =
MagicImageProcessor.EnableXmpOrientation ? Wic.Metadata.OrientationWindowsPolicy :
decoder.ContainerFormat == FileFormat.Jpeg ? Wic.Metadata.OrientationJpegPath :
Wic.Metadata.OrientationExifPath;
if (metareader.TryGetMetadataByName(orientationPath, out var pvorient) && pvorient.UnmanagedType == VarEnum.VT_UI2)
{
ExifOrientation = (Orientation)Math.Min(Math.Max((ushort)Orientation.Normal, (ushort)pvorient.Value !), (ushort)Orientation.Rotate270);
}
}
}
public WicImageFrame(WicImageContainer decoder, uint index)
{
WicFrame = comHandles.AddRef(decoder.WicDecoder.GetFrame(index));
WicSource = WicFrame;
Container = decoder;
WicFrame.GetResolution(out double dpix, out double dpiy);
DpiX = dpix;
DpiY = dpiy;
WicFrame.GetSize(out uint frameWidth, out uint frameHeight);
if (WicFrame.TryGetMetadataQueryReader(out var metareader))
{
WicMetadataReader = comHandles.AddRef(metareader);
string orientationPath =
MagicImageProcessor.EnableXmpOrientation ? Wic.Metadata.OrientationWindowsPolicy :
Container.ContainerFormat == FileFormat.Jpeg ? Wic.Metadata.OrientationJpeg :
Wic.Metadata.OrientationExif;
ExifOrientation = ((Orientation)metareader.GetValueOrDefault <ushort>(orientationPath)).Clamp();
}
if (decoder.IsRawContainer && index == 0 && decoder.WicDecoder.TryGetPreview(out var preview))
{
using var pvwSource = ComHandle.Wrap(preview);
preview.GetSize(out uint pw, out uint ph);
if (pw == frameWidth && ph == frameHeight)
{
WicSource = comHandles.AddOwnRef(preview);
}
}
if (WicSource is IWICBitmapSourceTransform trans)
{
uint pw = 1, ph = 1;
trans.GetClosestSize(ref pw, ref ph);
SupportsNativeScale = pw < frameWidth || ph < frameHeight;
}
if (WicSource is IWICPlanarBitmapSourceTransform ptrans)
{
var desc = ArrayPool <WICBitmapPlaneDescription> .Shared.Rent(WicTransforms.PlanarPixelFormats.Length);
uint twidth = frameWidth, theight = frameHeight;
SupportsPlanarProcessing = ptrans.DoesSupportTransform(
ref twidth, ref theight,
WICBitmapTransformOptions.WICBitmapTransformRotate0, WICPlanarOptions.WICPlanarOptionsDefault,
WicTransforms.PlanarPixelFormats, desc, (uint)WicTransforms.PlanarPixelFormats.Length
);
ChromaSubsampling =
desc[1].Width < desc[0].Width && desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling420 :
desc[1].Width < desc[0].Width ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling422 :
desc[1].Height < desc[0].Height ? WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling440 :
WICJpegYCrCbSubsamplingOption.WICJpegYCrCbSubsampling444;
ArrayPool <WICBitmapPlaneDescription> .Shared.Return(desc);
}
if (PixelFormat.FromGuid(WicSource.GetPixelFormat()).NumericRepresentation == PixelNumericRepresentation.Indexed)
{
var newFormat = PixelFormat.Bgr24Bpp;
if (Container.ContainerFormat == FileFormat.Gif && Container.FrameCount > 1)
{
newFormat = PixelFormat.Bgra32Bpp;
}
else
{
using var wicpal = ComHandle.Wrap(Wic.Factory.CreatePalette());
var pal = wicpal.ComObject;
WicSource.CopyPalette(pal);
if (pal.HasAlpha())
{
newFormat = PixelFormat.Bgra32Bpp;
}
else if (pal.IsGrayscale() || pal.IsBlackWhite())
{
newFormat = PixelFormat.Grey8Bpp;
}
}
var conv = comHandles.AddRef(Wic.Factory.CreateFormatConverter());
conv.Initialize(WicSource, newFormat.FormatGuid, WICBitmapDitherType.WICBitmapDitherTypeNone, null, 0.0, WICBitmapPaletteType.WICBitmapPaletteTypeCustom);
WicSource = conv;
}
}
