Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / Imaging / ColorConvertedBitmap.cs / 1305600 / ColorConvertedBitmap.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation. All Rights Reserved. // // File: ColorConvertedBitmap.cs // //----------------------------------------------------------------------------- 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.Security.Permissions; 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; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media.Imaging { #region ColorConvertedBitmap ////// ColorConvertedBitmap provides caching functionality for a BitmapSource. /// public sealed partial class ColorConvertedBitmap : Imaging.BitmapSource, ISupportInitialize { ////// Constructor /// public ColorConvertedBitmap() : base(true) { } ////// Construct a ColorConvertedBitmap /// /// Input BitmapSource to color convert /// Source Color Context /// Destination Color Context /// Destination Pixel format public ColorConvertedBitmap(BitmapSource source, ColorContext sourceColorContext, ColorContext destinationColorContext, PixelFormat format) : base(true) // Use base class virtuals { if (source == null) { throw new ArgumentNullException("source"); } if (sourceColorContext == null) { throw new ArgumentNullException("sourceColorContext"); } if (destinationColorContext == null) { throw new ArgumentNullException("destinationColorContext"); } _bitmapInit.BeginInit(); Source = source; SourceColorContext = sourceColorContext; DestinationColorContext = destinationColorContext; DestinationFormat = format; _bitmapInit.EndInit(); FinalizeCreation(); } // ISupportInitialize ////// Prepare the bitmap to accept initialize paramters. /// public void BeginInit() { WritePreamble(); _bitmapInit.BeginInit(); } ////// Prepare the bitmap to accept initialize paramters. /// ////// Critical - access critical resources /// PublicOK - All inputs verified /// [SecurityCritical ] 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 /// ////// Critical - access critical resource /// [SecurityCritical] 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(); } ////// Notification on source changing. /// 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.Get(SRID.Image_NoArgument, "Source")); } return false; } if (SourceColorContext == null) { if (throwIfInvalid) { throw new InvalidOperationException(SR.Get(SRID.Color_NullColorContext)); } return false; } if (DestinationColorContext == null) { if (throwIfInvalid) { throw new InvalidOperationException(SR.Get(SRID.Image_NoArgument, "DestinationColorContext")); } return false; } return true; } ////// Notification on source colorcontext changing. /// private void SourceColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _sourceColorContext = e.NewValue as ColorContext; } } ////// Notification on destination colorcontext changing. /// private void DestinationColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _destinationColorContext = e.NewValue as ColorContext; } } ////// Notification on destination format changing. /// private void DestinationFormatPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _destinationFormat = (PixelFormat)e.NewValue; } } ////// Coerce Source /// private static object CoerceSource(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._source; } else { return value; } } ////// Coerce SourceColorContext /// private static object CoerceSourceColorContext(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._sourceColorContext; } else { return value; } } ////// Coerce DestinationColorContext /// private static object CoerceDestinationColorContext(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._destinationColorContext; } else { return value; } } ////// Coerce DestinationFormat /// 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 } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Invariant.cs
- EventMemberCodeDomSerializer.cs
- EntityDataSourceDataSelectionPanel.cs
- unsafenativemethodstextservices.cs
- TextRangeEditLists.cs
- DropAnimation.xaml.cs
- LocatorGroup.cs
- XamlFigureLengthSerializer.cs
- MainMenu.cs
- COMException.cs
- ConfigurationManagerInternal.cs
- HttpRuntime.cs
- ControlPropertyNameConverter.cs
- NavigatorOutput.cs
- HtmlTableCell.cs
- PerformanceCounterCategory.cs
- SrgsSubset.cs
- XPathQilFactory.cs
- ToolStripKeyboardHandlingService.cs
- SiteOfOriginContainer.cs
- ScrollData.cs
- DecoderNLS.cs
- Authorization.cs
- HttpWebResponse.cs
- ValidateNames.cs
- ClientFormsAuthenticationCredentials.cs
- MailMessage.cs
- DbException.cs
- DataPointer.cs
- MimeMapping.cs
- IfAction.cs
- DataSourceIDConverter.cs
- SqlComparer.cs
- UTF7Encoding.cs
- ControlEvent.cs
- AggregateNode.cs
- ObjectDataSourceDisposingEventArgs.cs
- LocalIdCollection.cs
- SspiNegotiationTokenProviderState.cs
- FillRuleValidation.cs
- PerformanceCounterPermission.cs
- RuleSetBrowserDialog.cs
- TaiwanCalendar.cs
- XmlNamespaceDeclarationsAttribute.cs
- ZipPackagePart.cs
- DependencySource.cs
- SqlClientWrapperSmiStream.cs
- GuidConverter.cs
- DbParameterCollectionHelper.cs
- DelayedRegex.cs
- ComponentSerializationService.cs
- SafeRightsManagementPubHandle.cs
- TargetControlTypeAttribute.cs
- TableStyle.cs
- ServiceInstallComponent.cs
- BufferModeSettings.cs
- LoginUtil.cs
- figurelengthconverter.cs
- ScriptResourceAttribute.cs
- D3DImage.cs
- DesignerVerbCollection.cs
- WorkflowApplication.cs
- SocketPermission.cs
- QueryExecutionOption.cs
- ISessionStateStore.cs
- PerformanceCounterPermissionAttribute.cs
- CompoundFileReference.cs
- AsyncSerializedWorker.cs
- PipeConnection.cs
- EllipseGeometry.cs
- Dump.cs
- Menu.cs
- ObjectList.cs
- RequestCacheValidator.cs
- NumericUpDownAccelerationCollection.cs
- DesignerOptionService.cs
- JsonSerializer.cs
- GeneralTransformGroup.cs
- DataGridViewLinkColumn.cs
- Pipe.cs
- XmlSchemaIdentityConstraint.cs
- FaultConverter.cs
- TreeWalker.cs
- ServiceOperationParameter.cs
- PieceNameHelper.cs
- PingReply.cs
- SizeF.cs
- CodeParameterDeclarationExpressionCollection.cs
- WsatConfiguration.cs
- XPathConvert.cs
- DateTimeConverter2.cs
- TextSelectionProcessor.cs
- ClientSettings.cs
- RubberbandSelector.cs
- PermissionSetTriple.cs
- SqlRowUpdatedEvent.cs
- Util.cs
- _AutoWebProxyScriptWrapper.cs
- GridItemProviderWrapper.cs
- ContextMenuAutomationPeer.cs