public IntPtr WriteStream(IMagickImage image, MagickSettings settings, ReadWriteStreamDelegate reader, ReadWriteStreamDelegate writer, SeekStreamDelegate seeker, TellStreamDelegate teller)
{
using (INativeInstance settingsNative = MagickSettings.CreateInstance(settings))
{
IntPtr exception = IntPtr.Zero;
IntPtr result;
#if PLATFORM_AnyCPU
if (NativeLibrary.Is64Bit)
#endif
#if PLATFORM_x64 || PLATFORM_AnyCPU
result = NativeMethods.X64.MagickImageCollection_WriteStream(image.GetInstance(), settingsNative.Instance, reader, writer, seeker, teller, out exception);
#endif
#if PLATFORM_AnyCPU
else
#endif
#if PLATFORM_x86 || PLATFORM_AnyCPU
result = NativeMethods.X86.MagickImageCollection_WriteStream(image.GetInstance(), settingsNative.Instance, reader, writer, seeker, teller, out exception);
#endif
MagickException magickException = MagickExceptionHelper.Create(exception);
if (MagickExceptionHelper.IsError(magickException))
{
if (result != IntPtr.Zero)
{
Dispose(result);
}
throw magickException;
}
RaiseWarning(magickException);
return(result);
}
}
public IntPtr ReadStream(IMagickSettings <QuantumType> settings, ReadWriteStreamDelegate reader, SeekStreamDelegate seeker, TellStreamDelegate teller)
{
using (INativeInstance settingsNative = MagickSettings.CreateInstance(settings))
{
IntPtr exception = IntPtr.Zero;
IntPtr result;
#if PLATFORM_AnyCPU
if (OperatingSystem.Is64Bit)
#endif
#if PLATFORM_x64 || PLATFORM_AnyCPU
result = NativeMethods.X64.MagickImageCollection_ReadStream(settingsNative.Instance, reader, seeker, teller, out exception);
#endif
#if PLATFORM_AnyCPU
else
#endif
#if PLATFORM_x86 || PLATFORM_AnyCPU
result = NativeMethods.X86.MagickImageCollection_ReadStream(settingsNative.Instance, reader, seeker, teller, out exception);
#endif
var magickException = MagickExceptionHelper.Create(exception);
if (magickException == null)
{
return(result);
}
if (magickException is MagickErrorException)
{
if (result != IntPtr.Zero)
{
Dispose(result);
}
throw magickException;
}
RaiseWarning(magickException);
return(result);
}
}
/// <summary>
/// Writes the images to the specified buffer writter. If the output image's file format does not
/// allow multi-image files multiple files will be written.
/// </summary>
/// <param name="bufferWriter">The buffer writer to write the images to.</param>
/// <exception cref="MagickException">Thrown when an error is raised by ImageMagick.</exception>
public void Write(IBufferWriter <byte> bufferWriter)
{
Throw.IfNull(nameof(bufferWriter), bufferWriter);
if (_images.Count == 0)
{
return;
}
var settings = GetSettings().Clone();
settings.FileName = null;
try
{
AttachImages();
var wrapper = new BufferWriterWrapper(bufferWriter);
var writer = new ReadWriteStreamDelegate(wrapper.Write);
_nativeInstance.WriteStream(_images[0], settings, writer, null, null, null);
}
finally
{
DetachImages();
}
}
/// <summary>
/// Writes the image to the specified file.
/// </summary>
/// <param name="bufferWriter">The buffer writer to write the image to.</param>
/// <exception cref="MagickException">Thrown when an error is raised by ImageMagick.</exception>
public void Write(IBufferWriter <byte> bufferWriter)
{
Throw.IfNull(nameof(bufferWriter), bufferWriter);
_settings.FileName = null;
var wrapper = new BufferWriterWrapper(bufferWriter);
var writer = new ReadWriteStreamDelegate(wrapper.Write);
_nativeInstance.WriteStream(_settings, writer, null, null, null);
}
private static void DoNativeCompress(Stream input, Stream output, bool progressive, bool lossless, int quality)
{
using (StreamWrapper readWrapper = StreamWrapper.CreateForReading(input))
{
using (StreamWrapper writeWrapper = StreamWrapper.CreateForWriting(output))
{
ReadWriteStreamDelegate reader = new ReadWriteStreamDelegate(readWrapper.Read);
ReadWriteStreamDelegate writer = new ReadWriteStreamDelegate(writeWrapper.Write);
var nativeJpegOptimizer = new NativeJpegOptimizer();
nativeJpegOptimizer.CompressStream(reader, writer, progressive, lossless, quality);
}
}
}
public static int CompressStream(ReadWriteStreamDelegate reader, ReadWriteStreamDelegate writer, bool progressive, bool lossless, int quality)
{
#if PLATFORM_AnyCPU
if (NativeLibrary.Is64Bit)
#endif
#if PLATFORM_x64 || PLATFORM_AnyCPU
return((int)NativeMethods.X64.JpegOptimizer_CompressStream(reader, writer, progressive, lossless, (UIntPtr)quality));
#endif
#if PLATFORM_AnyCPU
else
#endif
#if PLATFORM_x86 || PLATFORM_AnyCPU
return((int)NativeMethods.X86.JpegOptimizer_CompressStream(reader, writer, progressive, lossless, (UIntPtr)quality));
#endif
}
public void CompressStream(ReadWriteStreamDelegate reader, ReadWriteStreamDelegate writer, bool progressive, bool lossless, int quality)
{
IntPtr exception = IntPtr.Zero;
#if PLATFORM_AnyCPU
if (NativeLibrary.Is64Bit)
#endif
#if PLATFORM_x64 || PLATFORM_AnyCPU
NativeMethods.X64.JpegOptimizer_CompressStream(reader, writer, progressive, lossless, (UIntPtr)quality, out exception);
#endif
#if PLATFORM_AnyCPU
else
#endif
#if PLATFORM_x86 || PLATFORM_AnyCPU
NativeMethods.X86.JpegOptimizer_CompressStream(reader, writer, progressive, lossless, (UIntPtr)quality, out exception);
#endif
CheckException(exception);
}
public void WriteStream(IMagickImage image, MagickSettings settings, ReadWriteStreamDelegate writer, SeekStreamDelegate seeker, TellStreamDelegate teller, ReadWriteStreamDelegate reader)
{
using (INativeInstance settingsNative = MagickSettings.CreateInstance(settings))
{
IntPtr exception = IntPtr.Zero;
#if PLATFORM_AnyCPU
if (NativeLibrary.Is64Bit)
#endif
#if PLATFORM_x64 || PLATFORM_AnyCPU
NativeMethods.X64.MagickImageCollection_WriteStream(image.GetInstance(), settingsNative.Instance, writer, seeker, teller, reader, out exception);
#endif
#if PLATFORM_AnyCPU
else
#endif
#if PLATFORM_x86 || PLATFORM_AnyCPU
NativeMethods.X86.MagickImageCollection_WriteStream(image.GetInstance(), settingsNative.Instance, writer, seeker, teller, reader, out exception);
#endif
CheckException(exception);
}
}
private void AddImages(ReadOnlySequence <byte> data, IMagickReadSettings <QuantumType>?readSettings, bool ping)
{
if (data.IsSingleSegment)
{
AddImages(data.FirstSpan, readSettings, ping);
return;
}
var settings = CreateSettings(readSettings);
settings.Ping = ping;
settings.FileName = null;
var wrapper = new ReadOnlySequenceWrapper(data);
var reader = new ReadWriteStreamDelegate(wrapper.Read);
var seeker = new SeekStreamDelegate(wrapper.Seek);
var teller = new TellStreamDelegate(wrapper.Tell);
var result = _nativeInstance.ReadStream(settings, reader, seeker, teller);
AddImages(result, settings);
}
public static extern void MagickImageCollection_WriteStream(IntPtr image, IntPtr settings, ReadWriteStreamDelegate writer, SeekStreamDelegate seeker, TellStreamDelegate teller, ReadWriteStreamDelegate reader, out IntPtr exception);
public static extern void JpegOptimizer_CompressStream(ReadWriteStreamDelegate reader, ReadWriteStreamDelegate writer, [MarshalAs(UnmanagedType.Bool)] bool progressive, [MarshalAs(UnmanagedType.Bool)] bool lossless, UIntPtr quality, out IntPtr exception);
