0023272: Image comparison algorithm

A new class Image_Diff for comparison of images
and a draw-command "diffimage", which compares 2 images.

Image_PixMap redesigned to provide interface for low-level image operations.
New Image_AlienPixMap class now intended for Save/Load functionality.

Aspect_PixMap class dropped.
Xw_PixMap and WNT_PixMap classes now do not inherit from Aspect_PixMap and deprecated.

ToPixMap methods now retrieve Image_PixMap as argument.

Conflicts:
src/ViewerTest/ViewerTest.cxx
Remarks applied
Fix compilation (correct merging error)

Eliminated Aspect <-> Image cyclic dependency

Fixed GIF dump in case of BGR32 image format

src/InterfaceGraphic/FILES

@@ -11,7 +11,6 @@ InterfaceGraphic_wntio.hxx
 InterfaceGraphic_cPrintf.cxx
 InterfaceGraphic_Palette.c
 InterfaceGraphic_PrimitiveArray.hxx
-InterfaceGraphic_RawBufferData.hxx
 InterfaceGraphic_telem.hxx
 InterfaceGraphic_degeneration.hxx
 InterfaceGraphic_tgl_all.hxx

src/InterfaceGraphic/InterfaceGraphic_RawBufferData.hxx

@@ -1,54 +0,0 @@
-// Copyright (c) 1991-1999 Matra Datavision
-// Copyright (c) 1999-2012 OPEN CASCADE SAS
-//
-// The content of this file is subject to the Open CASCADE Technology Public
-// License Version 6.5 (the "License"). You may not use the content of this file
-// except in compliance with the License. Please obtain a copy of the License
-// at http://www.opencascade.org and read it completely before using this file.
-//
-// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
-//
-// The Original Code and all software distributed under the License is
-// distributed on an "AS IS" basis, without warranty of any kind, and the
-// Initial Developer hereby disclaims all such warranties, including without
-// limitation, any warranties of merchantability, fitness for a particular
-// purpose or non-infringement. Please see the License for the specific terms
-// and conditions governing the rights and limitations under the License.
-
-#ifndef INTERFACEGRAPHIC_RawBufferData_H
-#define INTERFACEGRAPHIC_RawBufferData_H
-
-#include <Standard.hxx>
-
-// Most items are from GLenum, but values not equal!
-typedef enum
-{
-  TRGB,
-  TBGR,
-  TRGBA,
-  TBGRA,
-  TDepthComponent,
-  TRed,
-  TGreen,
-  TBlue,
-  TAlpha,
-} TRawBufferDataFormat;
-
-typedef enum
-{
-  TUByte,
-  TFloat,
-} TRawBufferDataType;
-
-struct TRawBufferData
-{
-  Standard_Integer widthPx;
-  Standard_Integer heightPx;
-  Standard_Integer rowAligmentBytes;
-  TRawBufferDataFormat format;
-  TRawBufferDataType type;
-  Standard_Address dataPtr;
-};
-
-#endif /* INTERFACEGRAPHIC_RawBufferData_H */