eff1ff4b41
* Fixed a typo in OpenJPEG.J2KLayerInfo (only affected debug display) git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@3118 52acb1d6-8a22-11de-b505-999d5b087335
194 lines
8.4 KiB
C#
194 lines
8.4 KiB
C#
/*
|
|
* CVS identifier:
|
|
*
|
|
* $Id: CBlkWTDataSrc.java,v 1.18 2001/09/14 08:45:25 grosbois Exp $
|
|
*
|
|
* Class: CBlkWTDataSrc
|
|
*
|
|
* Description: Interface that define methods for transfer of WT
|
|
* data in a code-block basis.
|
|
*
|
|
*
|
|
*
|
|
* COPYRIGHT:
|
|
*
|
|
* This software module was originally developed by Raphaël Grosbois and
|
|
* Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
|
|
* Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
|
|
* Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
|
|
* Centre France S.A) in the course of development of the JPEG2000
|
|
* standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
|
|
* software module is an implementation of a part of the JPEG 2000
|
|
* Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
|
|
* Systems AB and Canon Research Centre France S.A (collectively JJ2000
|
|
* Partners) agree not to assert against ISO/IEC and users of the JPEG
|
|
* 2000 Standard (Users) any of their rights under the copyright, not
|
|
* including other intellectual property rights, for this software module
|
|
* with respect to the usage by ISO/IEC and Users of this software module
|
|
* or modifications thereof for use in hardware or software products
|
|
* claiming conformance to the JPEG 2000 Standard. Those intending to use
|
|
* this software module in hardware or software products are advised that
|
|
* their use may infringe existing patents. The original developers of
|
|
* this software module, JJ2000 Partners and ISO/IEC assume no liability
|
|
* for use of this software module or modifications thereof. No license
|
|
* or right to this software module is granted for non JPEG 2000 Standard
|
|
* conforming products. JJ2000 Partners have full right to use this
|
|
* software module for his/her own purpose, assign or donate this
|
|
* software module to any third party and to inhibit third parties from
|
|
* using this software module for non JPEG 2000 Standard conforming
|
|
* products. This copyright notice must be included in all copies or
|
|
* derivative works of this software module.
|
|
*
|
|
* Copyright (c) 1999/2000 JJ2000 Partners.
|
|
* */
|
|
using System;
|
|
using CSJ2K.j2k.wavelet;
|
|
using CSJ2K.j2k.image;
|
|
namespace CSJ2K.j2k.wavelet.analysis
|
|
{
|
|
|
|
/// <summary> This abstract class defines methods to transfer wavelet data in a
|
|
/// code-block by code-block basis. In each call to 'getNextCodeBlock()' or
|
|
/// 'getNextInternCodeBlock()' a new code-block is returned. The code-blocks
|
|
/// are returned in no specific order.
|
|
///
|
|
/// <p>This class is the source of data for the quantizer. See the 'Quantizer'
|
|
/// class.</p>
|
|
///
|
|
/// <p>Note that no more of one object may request data, otherwise one object
|
|
/// would get some of the data and another one another part, in no defined
|
|
/// manner.</p>
|
|
///
|
|
/// </summary>
|
|
/// <seealso cref="ForwWTDataProps">
|
|
/// </seealso>
|
|
/// <seealso cref="WaveletTransform">
|
|
/// </seealso>
|
|
/// <seealso cref="jj2000.j2k.quantization.quantizer.CBlkQuantDataSrcEnc">
|
|
/// </seealso>
|
|
/// <seealso cref="jj2000.j2k.quantization.quantizer.Quantizer">
|
|
///
|
|
/// </seealso>
|
|
public interface CBlkWTDataSrc:ForwWTDataProps
|
|
{
|
|
|
|
/// <summary> Returns the position of the fixed point in the specified component, or
|
|
/// equivalently the number of fractional bits. This is the position of the
|
|
/// least significant integral (i.e. non-fractional) bit, which is
|
|
/// equivalent to the number of fractional bits. For instance, for
|
|
/// fixed-point values with 2 fractional bits, 2 is returned. For
|
|
/// floating-point data this value does not apply and 0 should be
|
|
/// returned. Position 0 is the position of the least significant bit in
|
|
/// the data.
|
|
///
|
|
/// </summary>
|
|
/// <param name="c">The index of the component.
|
|
///
|
|
/// </param>
|
|
/// <returns> The position of the fixed-point, which is the same as the
|
|
/// number of fractional bits. For floating-point data 0 is returned.
|
|
///
|
|
/// </returns>
|
|
int getFixedPoint(int c);
|
|
|
|
/// <summary> Return the data type of this CBlkWTDataSrc for the given component in
|
|
/// the current tile. Its value should be either DataBlk.TYPE_INT or
|
|
/// DataBlk.TYPE_FLOAT but can change according to the current
|
|
/// tile-component.
|
|
///
|
|
/// </summary>
|
|
/// <param name="t">Tile index
|
|
///
|
|
/// </param>
|
|
/// <param name="c">Component index
|
|
///
|
|
/// </param>
|
|
/// <returns> Current data type
|
|
///
|
|
/// </returns>
|
|
int getDataType(int t, int c);
|
|
|
|
/// <summary> Returns the next code-block in the current tile for the specified
|
|
/// component, as a copy (see below). The order in which code-blocks are
|
|
/// returned is not specified. However each code-block is returned only
|
|
/// once and all code-blocks will be returned if the method is called 'N'
|
|
/// times, where 'N' is the number of code-blocks in the tile. After all
|
|
/// the code-blocks have been returned for the current tile calls to this
|
|
/// method will return 'null'.
|
|
///
|
|
/// <p>When changing the current tile (through 'setTile()' or 'nextTile()')
|
|
/// this method will always return the first code-block, as if this method
|
|
/// was never called before for the new current tile.</p>
|
|
///
|
|
/// <p>The data returned by this method is always a copy of the internal
|
|
/// data of this object, if any, and it can be modified "in place" without
|
|
/// any problems after being returned. The 'offset' of the returned data is
|
|
/// 0, and the 'scanw' is the same as the code-block width. The 'magbits'
|
|
/// of the returned data is not set by this method and should be
|
|
/// ignored. See the 'CBlkWTData' class.</p>
|
|
///
|
|
/// <p>The 'ulx' and 'uly' members of the returned 'CBlkWTData' object
|
|
/// contain the coordinates of the top-left corner of the block, with
|
|
/// respect to the tile, not the subband.</p>
|
|
///
|
|
/// </summary>
|
|
/// <param name="c">The component for which to return the next code-block.
|
|
///
|
|
/// </param>
|
|
/// <param name="cblk">If non-null this object will be used to return the new
|
|
/// code-block. If null a new one will be allocated and returned. If the
|
|
/// "data" array of the object is non-null it will be reused, if possible,
|
|
/// to return the data.
|
|
///
|
|
/// </param>
|
|
/// <returns> The next code-block in the current tile for component 'c', or
|
|
/// null if all code-blocks for the current tile have been returned.
|
|
///
|
|
/// </returns>
|
|
/// <seealso cref="CBlkWTData">
|
|
///
|
|
/// </seealso>
|
|
CBlkWTData getNextCodeBlock(int c, CBlkWTData cblk);
|
|
|
|
/// <summary> Returns the next code-block in the current tile for the specified
|
|
/// component. The order in which code-blocks are returned is not
|
|
/// specified. However each code-block is returned only once and all
|
|
/// code-blocks will be returned if the method is called 'N' times, where
|
|
/// 'N' is the number of code-blocks in the tile. After all the code-blocks
|
|
/// have been returned for the current tile calls to this method will
|
|
/// return 'null'.
|
|
///
|
|
/// <p>When changing the current tile (through 'setTile()' or 'nextTile()')
|
|
/// this method will always return the first code-block, as if this method
|
|
/// was never called before for the new current tile.</p>
|
|
///
|
|
/// <p>The data returned by this method can be the data in the internal
|
|
/// buffer of this object, if any, and thus can not be modified by the
|
|
/// caller. The 'offset' and 'scanw' of the returned data can be
|
|
/// arbitrary. The 'magbits' of the returned data is not set by this method
|
|
/// and should be ignored. See the 'CBlkWTData' class.</p>
|
|
///
|
|
/// <p>The 'ulx' and 'uly' members of the returned 'CBlkWTData' object
|
|
/// contain the coordinates of the top-left corner of the block, with
|
|
/// respect to the tile, not the subband.</p>
|
|
///
|
|
/// </summary>
|
|
/// <param name="c">The component for which to return the next code-block.
|
|
///
|
|
/// </param>
|
|
/// <param name="cblk">If non-null this object will be used to return the new
|
|
/// code-block. If null a new one will be allocated and returned. If the
|
|
/// "data" array of the object is non-null it will be reused, if possible,
|
|
/// to return the data.
|
|
///
|
|
/// </param>
|
|
/// <returns> The next code-block in the current tile for component 'n', or
|
|
/// null if all code-blocks for the current tile have been returned.
|
|
///
|
|
/// </returns>
|
|
/// <seealso cref="CBlkWTData">
|
|
///
|
|
/// </seealso>
|
|
CBlkWTData getNextInternCodeBlock(int c, CBlkWTData cblk);
|
|
}
|
|
} |