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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
using System;
using System.IO;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Reflection;
using MS.Internal;
using MS.Win32.PresentationCore;
using System.Security;
using System.Diagnostics;
using System.Windows.Media;
using System.Globalization;
using System.Runtime.InteropServices;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
using SR=MS.Internal.PresentationCore.SR;
namespace System.Windows.Media.Imaging
{
#region ColorConvertedBitmap
/// <summary>
/// ColorConvertedBitmap provides caching functionality for a BitmapSource.
/// </summary>
public sealed partial class ColorConvertedBitmap : Imaging.BitmapSource, ISupportInitialize
{
/// <summary>
/// Constructor
/// </summary>
public ColorConvertedBitmap() : base(true)
{
}
/// <summary>
/// Construct a ColorConvertedBitmap
/// </summary>
/// <param name="source">Input BitmapSource to color convert</param>
/// <param name="sourceColorContext">Source Color Context</param>
/// <param name="destinationColorContext">Destination Color Context</param>
/// <param name="format">Destination Pixel format</param>
public ColorConvertedBitmap(BitmapSource source, ColorContext sourceColorContext, ColorContext destinationColorContext, PixelFormat format)
: base(true) // Use base class virtuals
{
ArgumentNullException.ThrowIfNull(source);
ArgumentNullException.ThrowIfNull(sourceColorContext);
ArgumentNullException.ThrowIfNull(destinationColorContext);
_bitmapInit.BeginInit();
Source = source;
SourceColorContext = sourceColorContext;
DestinationColorContext = destinationColorContext;
DestinationFormat = format;
_bitmapInit.EndInit();
FinalizeCreation();
}
// ISupportInitialize
/// <summary>
/// Prepare the bitmap to accept initialize paramters.
/// </summary>
public void BeginInit()
{
WritePreamble();
_bitmapInit.BeginInit();
}
/// <summary>
/// Prepare the bitmap to accept initialize paramters.
/// </summary>
public void EndInit()
{
WritePreamble();
_bitmapInit.EndInit();
IsValidForFinalizeCreation(/* throwIfInvalid = */ true);
FinalizeCreation();
}
private void ClonePrequel(ColorConvertedBitmap otherColorConvertedBitmap)
{
BeginInit();
}
private void ClonePostscript(ColorConvertedBitmap otherColorConvertedBitmap)
{
EndInit();
}
///
/// Create the unmanaged resources
///
internal override void FinalizeCreation()
{
_bitmapInit.EnsureInitializedComplete();
BitmapSourceSafeMILHandle wicConverter = null;
HRESULT.Check(UnsafeNativeMethods.WICCodec.CreateColorTransform(
out wicConverter));
lock (_syncObject)
{
Guid fmtDestFmt = DestinationFormat.Guid;
HRESULT.Check(UnsafeNativeMethods.WICColorTransform.Initialize(
wicConverter,
Source.WicSourceHandle,
SourceColorContext.ColorContextHandle,
DestinationColorContext.ColorContextHandle,
ref fmtDestFmt));
}
//
// This is just a link in a BitmapSource chain. The memory is being used by
// the BitmapSource at the end of the chain, so no memory pressure needs
// to be added here.
//
WicSourceHandle = wicConverter;
_isSourceCached = Source.IsSourceCached;
CreationCompleted = true;
UpdateCachedSettings();
}
/// <summary>
/// Notification on source changing.
/// </summary>
private void SourcePropertyChangedHook(DependencyPropertyChangedEventArgs e)
{
if (!e.IsASubPropertyChange)
{
BitmapSource newSource = e.NewValue as BitmapSource;
_source = newSource;
RegisterDownloadEventSource(_source);
_syncObject = (newSource != null) ? newSource.SyncObject : _bitmapInit;
}
}
internal override bool IsValidForFinalizeCreation(bool throwIfInvalid)
{
if (Source == null)
{
if (throwIfInvalid)
{
throw new InvalidOperationException(SR.Format(SR.Image_NoArgument, "Source"));
}
return false;
}
if (SourceColorContext == null)
{
if (throwIfInvalid)
{
throw new InvalidOperationException(SR.Color_NullColorContext);
}
return false;
}
if (DestinationColorContext == null)
{
if (throwIfInvalid)
{
throw new InvalidOperationException(SR.Format(SR.Image_NoArgument, "DestinationColorContext"));
}
return false;
}
return true;
}
/// <summary>
/// Notification on source colorcontext changing.
/// </summary>
private void SourceColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e)
{
if (!e.IsASubPropertyChange)
{
_sourceColorContext = e.NewValue as ColorContext;
}
}
/// <summary>
/// Notification on destination colorcontext changing.
/// </summary>
private void DestinationColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e)
{
if (!e.IsASubPropertyChange)
{
_destinationColorContext = e.NewValue as ColorContext;
}
}
/// <summary>
/// Notification on destination format changing.
/// </summary>
private void DestinationFormatPropertyChangedHook(DependencyPropertyChangedEventArgs e)
{
if (!e.IsASubPropertyChange)
{
_destinationFormat = (PixelFormat)e.NewValue;
}
}
/// <summary>
/// Coerce Source
/// </summary>
private static object CoerceSource(DependencyObject d, object value)
{
ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d;
if (!bitmap._bitmapInit.IsInInit)
{
return bitmap._source;
}
else
{
return value;
}
}
/// <summary>
/// Coerce SourceColorContext
/// </summary>
private static object CoerceSourceColorContext(DependencyObject d, object value)
{
ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d;
if (!bitmap._bitmapInit.IsInInit)
{
return bitmap._sourceColorContext;
}
else
{
return value;
}
}
/// <summary>
/// Coerce DestinationColorContext
/// </summary>
private static object CoerceDestinationColorContext(DependencyObject d, object value)
{
ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d;
if (!bitmap._bitmapInit.IsInInit)
{
return bitmap._destinationColorContext;
}
else
{
return value;
}
}
/// <summary>
/// Coerce DestinationFormat
/// </summary>
private static object CoerceDestinationFormat(DependencyObject d, object value)
{
ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d;
if (!bitmap._bitmapInit.IsInInit)
{
return bitmap._destinationFormat;
}
else
{
return value;
}
}
#region Data members
private BitmapSource _source;
private ColorContext _sourceColorContext;
private ColorContext _destinationColorContext;
private PixelFormat _destinationFormat;
#endregion
}
#endregion // ColorConvertedBitmap
}
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