/// <summary>
/// Dispose(bool disposing) executes in two distinct scenarios.
/// If disposing equals true, the method has been called directly
/// or indirectly by a user's code. Managed and unmanaged resources
/// can be disposed.
/// If disposing equals false, the method has been called by the
/// runtime from inside the finalizer and you should not reference
/// other objects. Only unmanaged resources can be disposed.
/// </summary>
/// <param name="disposing">If true dispose all resources, else dispose only release unmanaged resources.</param>
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this.disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
// Dispose managed resources.
if (this.bmpTargaImage != null)
{
this.bmpTargaImage.Dispose();
}
if (this.bmpImageThumbnail != null)
{
this.bmpImageThumbnail.Dispose();
}
if (this.ImageByteHandle != null)
{
if (this.ImageByteHandle.IsAllocated)
{
this.ImageByteHandle.Free();
}
}
if (this.ThumbnailByteHandle != null)
{
if (this.ThumbnailByteHandle.IsAllocated)
{
this.ThumbnailByteHandle.Free();
}
}
if (this.objTargaHeader != null)
{
objTargaHeader.ColorMap.Clear();
objTargaHeader = null;
}
if (this.objTargaExtensionArea != null)
{
objTargaExtensionArea.ColorCorrectionTable.Clear();
objTargaExtensionArea.ScanLineTable.Clear();
objTargaExtensionArea = null;
}
objTargaFooter = null;
}
// Release unmanaged resources. If disposing is false,
// only the following code is executed.
// ** release unmanged resources here **
// Note that this is not thread safe.
// Another thread could start disposing the object
// after the managed resources are disposed,
// but before the disposed flag is set to true.
// If thread safety is necessary, it must be
// implemented by the client.
}
disposed = true;
}
/// <summary>
/// Creates a new instance of the TargaImage object.
/// </summary>
public TGALoader()
{
this.objTargaFooter = new TargaFooter();
this.objTargaHeader = new TargaHeader();
this.objTargaExtensionArea = new TargaExtensionArea();
this.bmpTargaImage = null;
this.bmpImageThumbnail = null;
}
/// <summary>
/// Clears out all objects and resources.
/// </summary>
private void ClearAll()
{
if (this.bmpTargaImage != null)
{
this.bmpTargaImage.Dispose();
this.bmpTargaImage = null;
}
if (this.bmpImageThumbnail != null)
{
this.bmpImageThumbnail.Dispose();
this.bmpImageThumbnail = null;
}
if (this.ImageByteHandle != null && this.ImageByteHandle.IsAllocated)
this.ImageByteHandle.Free();
if (this.ThumbnailByteHandle != null && this.ThumbnailByteHandle.IsAllocated)
this.ThumbnailByteHandle.Free();
this.objTargaHeader = new TargaHeader();
this.objTargaExtensionArea = new TargaExtensionArea();
this.objTargaFooter = new TargaFooter();
this.eTGAFormat = TGAFormat.UNKNOWN;
this.intStride = 0;
this.intPadding = 0;
this.strFileName = string.Empty;
}