jpc_tsfb.h

在x86平台上运行不可信任代码的sandbox。

/*
 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
 *   British Columbia.
 * Copyright (c) 2001-2002 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer License Version 2.0
 * 
 * Copyright (c) 1999-2000 Image Power, Inc.
 * Copyright (c) 1999-2000 The University of British Columbia
 * Copyright (c) 2001-2003 Michael David Adams
 * 
 * All rights reserved.
 * 
 * Permission is hereby granted, free of charge, to any person (the
 * "User") obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge,
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 * 1.  The above copyright notices and this permission notice (which
 * includes the disclaimer below) shall be included in all copies or
 * substantial portions of the Software.
 * 
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 * promote products derived from the Software without specific prior
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 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
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 * __END_OF_JASPER_LICENSE__
 */

/*
 * Tree-Structured Filter Bank (TSFB) Library
 *
 * $Id: jpc_tsfb.h 1918 2005-07-24 14:12:08Z baford $
 */

#ifndef JPC_TSFB_H
#define JPC_TSFB_H

/******************************************************************************\
* Includes.
\******************************************************************************/

#include "jasper/jas_seq.h"

#include "jpc_fix.h"
#include "jpc_qmfb.h"

/******************************************************************************\
* Constants.
\******************************************************************************/

#define	JPC_TSFB_MAXBANDS	(JPC_TSFB_MAXDEPTH * 3 + 1)
#define	JPC_TSFB_MAXDEPTH	32
#define	JPC_TSFB_RITIMODE	JPC_QMFB1D_RITIMODE

#define	JPC_TSFB_MAXBANDSPERNODE	(JPC_QMFB1D_MAXCHANS * JPC_QMFB1D_MAXCHANS)

#define	JPC_TSFB_PRUNEVERT	0x01
#define	JPC_TSFB_PRUNEHORZ	0x02

#define JPC_TSFB_LL	0
#define JPC_TSFB_LH	1
#define JPC_TSFB_HL	2
#define JPC_TSFB_HH	3

/******************************************************************************\
* Types.
\******************************************************************************/

typedef struct {

	int xstart;
	int ystart;
	int xend;
	int yend;
	int locxstart;
	int locystart;
	int locxend;
	int locyend;

} jpc_tsfbnodeband_t;

typedef struct jpc_tsfbnode_s {

	int numhchans;
	int numvchans;
	jpc_qmfb1d_t *hqmfb;
	jpc_qmfb1d_t *vqmfb;
	int maxchildren;
	int numchildren;
	struct jpc_tsfbnode_s *children[JPC_TSFB_MAXBANDSPERNODE];
	struct jpc_tsfbnode_s *parent;

} jpc_tsfbnode_t;

typedef struct {
	jpc_tsfbnode_t *root;
} jpc_tsfb_t;

typedef struct {
	int xstart;
	int ystart;
	int xend;
	int yend;
	int orient;
	int locxstart;
	int locystart;
	int locxend;
	int locyend;
	jpc_fix_t synenergywt;
} jpc_tsfb_band_t;

/******************************************************************************\
* Functions.
\******************************************************************************/

/* Create a TSFB. */
jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlevels);

/* Create a wavelet-type TSFB with the specified horizontal and vertical
  QMFBs. */
jpc_tsfb_t *jpc_tsfb_wavelet(jpc_qmfb1d_t *hqmfb, jpc_qmfb1d_t *vqmfb,
  int numdlvls);

/* Destroy a TSFB. */
void jpc_tsfb_destroy(jpc_tsfb_t *tsfb);

/* Perform analysis. */
void jpc_tsfb_analyze(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x);

/* Perform synthesis. */
void jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x);

/* Get band information for a TSFB. */
int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart,
  uint_fast32_t ystart, uint_fast32_t xend, uint_fast32_t yend,
  jpc_tsfb_band_t *bands);

#endif