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Francois-Olivier Devaux 2006-12-04 14:45:47 +00:00
parent a74771c2b1
commit 3e4052762f
40 changed files with 12304 additions and 0 deletions
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40
libopenjpeg/CMakeLists.txt Normal file
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INCLUDE_REGULAR_EXPRESSION("^.*$")
# Defines the source code for the library
SET(OPENJPEG_SRCS
bio.c
cio.c
dwt.c
event.c
image.c
j2k.c
j2k_lib.c
jp2.c
jpt.c
mct.c
mqc.c
openjpeg.c
pi.c
raw.c
t1.c
t2.c
tcd.c
tgt.c
)
# Pass proper definition to preprocessor to generate shared lib
IF(WIN32)
IF(BUILD_SHARED_LIBS)
ADD_DEFINITIONS(-DOPJ_EXPORTS)
ELSE(BUILD_SHARED_LIBS)
ADD_DEFINITIONS(-DOPJ_STATIC)
ENDIF(BUILD_SHARED_LIBS)
ENDIF(WIN32)
# Create the library
ADD_LIBRARY(${OPENJPEG_LIBRARY_NAME} ${OPENJPEG_SRCS})
# Install library
INSTALL_TARGETS(/lib/ ${OPENJPEG_LIBRARY_NAME})
# Install includes files
INSTALL_FILES(/include .h)

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/** @defgroup BIO BIO - Individual bit input-output stream */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Write a bit
@param bio BIO handle
@param b Bit to write (0 or 1)
*/
static void bio_putbit(opj_bio_t *bio, int b);
/**
Read a bit
@param bio BIO handle
@return Returns the read bit
*/
static int bio_getbit(opj_bio_t *bio);
/**
Write a byte
@param bio BIO handle
@return Returns 0 if successful, returns 1 otherwise
*/
static int bio_byteout(opj_bio_t *bio);
/**
Read a byte
@param bio BIO handle
@return Returns 0 if successful, returns 1 otherwise
*/
static int bio_bytein(opj_bio_t *bio);
/*@}*/
/*@}*/
/*
==========================================================
local functions
==========================================================
*/
static int bio_byteout(opj_bio_t *bio) {
bio->buf = (bio->buf << 8) & 0xffff;
bio->ct = bio->buf == 0xff00 ? 7 : 8;
if (bio->bp >= bio->end) {
return 1;
}
*bio->bp++ = bio->buf >> 8;
return 0;
}
static int bio_bytein(opj_bio_t *bio) {
bio->buf = (bio->buf << 8) & 0xffff;
bio->ct = bio->buf == 0xff00 ? 7 : 8;
if (bio->bp >= bio->end) {
return 1;
}
bio->buf |= *bio->bp++;
return 0;
}
static void bio_putbit(opj_bio_t *bio, int b) {
if (bio->ct == 0) {
bio_byteout(bio);
}
bio->ct--;
bio->buf |= b << bio->ct;
}
static int bio_getbit(opj_bio_t *bio) {
if (bio->ct == 0) {
bio_bytein(bio);
}
bio->ct--;
return (bio->buf >> bio->ct) & 1;
}
/*
==========================================================
Bit Input/Output interface
==========================================================
*/
opj_bio_t* bio_create() {
opj_bio_t *bio = (opj_bio_t*)opj_malloc(sizeof(opj_bio_t));
return bio;
}
void bio_destroy(opj_bio_t *bio) {
if(bio) {
opj_free(bio);
}
}
int bio_numbytes(opj_bio_t *bio) {
return (bio->bp - bio->start);
}
void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len) {
bio->start = bp;
bio->end = bp + len;
bio->bp = bp;
bio->buf = 0;
bio->ct = 8;
}
void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len) {
bio->start = bp;
bio->end = bp + len;
bio->bp = bp;
bio->buf = 0;
bio->ct = 0;
}
void bio_write(opj_bio_t *bio, int v, int n) {
int i;
for (i = n - 1; i >= 0; i--) {
bio_putbit(bio, (v >> i) & 1);
}
}
int bio_read(opj_bio_t *bio, int n) {
int i, v;
v = 0;
for (i = n - 1; i >= 0; i--) {
v += bio_getbit(bio) << i;
}
return v;
}
int bio_flush(opj_bio_t *bio) {
bio->ct = 0;
if (bio_byteout(bio)) {
return 1;
}
if (bio->ct == 7) {
bio->ct = 0;
if (bio_byteout(bio)) {
return 1;
}
}
return 0;
}
int bio_inalign(opj_bio_t *bio) {
bio->ct = 0;
if ((bio->buf & 0xff) == 0xff) {
if (bio_bytein(bio)) {
return 1;
}
bio->ct = 0;
}
return 0;
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __BIO_H
#define __BIO_H
/**
@file bio.h
@brief Implementation of an individual bit input-output (BIO)
The functions in BIO.C have for goal to realize an individual bit input - output.
*/
/** @defgroup BIO BIO - Individual bit input-output stream */
/*@{*/
/**
Individual bit input-output stream (BIO)
*/
typedef struct opj_bio {
/** pointer to the start of the buffer */
unsigned char *start;
/** pointer to the end of the buffer */
unsigned char *end;
/** pointer to the present position in the buffer */
unsigned char *bp;
/** temporary place where each byte is read or written */
unsigned int buf;
/** coder : number of bits free to write. decoder : number of bits read */
int ct;
} opj_bio_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a new BIO handle
@return Returns a new BIO handle if successful, returns NULL otherwise
*/
opj_bio_t* bio_create();
/**
Destroy a previously created BIO handle
@param bio BIO handle to destroy
*/
void bio_destroy(opj_bio_t *bio);
/**
Number of bytes written.
@param bio BIO handle
@return Returns the number of bytes written
*/
int bio_numbytes(opj_bio_t *bio);
/**
Init encoder
@param bio BIO handle
@param bp Output buffer
@param len Output buffer length
*/
void bio_init_enc(opj_bio_t *bio, unsigned char *bp, int len);
/**
Init decoder
@param bio BIO handle
@param bp Input buffer
@param len Input buffer length
*/
void bio_init_dec(opj_bio_t *bio, unsigned char *bp, int len);
/**
Write bits
@param bio BIO handle
@param v Value of bits
@param n Number of bits to write
*/
void bio_write(opj_bio_t *bio, int v, int n);
/**
Read bits
@param bio BIO handle
@param n Number of bits to read
@return Returns the corresponding read number
*/
int bio_read(opj_bio_t *bio, int n);
/**
Flush bits
@param bio BIO handle
@return Returns 1 if successful, returns 0 otherwise
*/
int bio_flush(opj_bio_t *bio);
/**
Passes the ending bits (coming from flushing)
@param bio BIO handle
@return Returns 1 if successful, returns 0 otherwise
*/
int bio_inalign(opj_bio_t *bio);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __BIO_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/* ----------------------------------------------------------------------- */
opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length) {
opj_cp_t *cp = NULL;
opj_cio_t *cio = (opj_cio_t*)opj_malloc(sizeof(opj_cio_t));
if(!cio) return NULL;
cio->cinfo = cinfo;
if(buffer && length) {
/* wrap a user buffer containing the encoded image */
cio->openmode = OPJ_STREAM_READ;
cio->buffer = buffer;
cio->length = length;
}
else if(!buffer && !length && cinfo) {
/* allocate a buffer for the encoded image */
cio->openmode = OPJ_STREAM_WRITE;
switch(cinfo->codec_format) {
case CODEC_J2K:
cp = ((opj_j2k_t*)cinfo->j2k_handle)->cp;
break;
case CODEC_JP2:
cp = ((opj_jp2_t*)cinfo->jp2_handle)->j2k->cp;
break;
default:
opj_free(cio);
return NULL;
}
cio->length = cp->tdx * cp->tdy * cp->tw * cp->th * 4;
cio->buffer = (unsigned char *)opj_malloc(cio->length);
if(!cio->buffer) {
opj_free(cio);
return NULL;
}
}
else {
opj_free(cio);
return NULL;
}
/* Initialize byte IO */
cio->start = cio->buffer;
cio->end = cio->buffer + cio->length;
cio->bp = cio->buffer;
return cio;
}
void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio) {
if(cio) {
if(cio->openmode == OPJ_STREAM_WRITE) {
/* destroy the allocated buffer */
opj_free(cio->buffer);
}
/* destroy the cio */
opj_free(cio);
}
}
/* ----------------------------------------------------------------------- */
/*
* Get position in byte stream.
*/
int OPJ_CALLCONV cio_tell(opj_cio_t *cio) {
return cio->bp - cio->start;
}
/*
* Set position in byte stream.
*
* pos : position, in number of bytes, from the beginning of the stream
*/
void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos) {
cio->bp = cio->start + pos;
}
/*
* Number of bytes left before the end of the stream.
*/
int cio_numbytesleft(opj_cio_t *cio) {
return cio->end - cio->bp;
}
/*
* Get pointer to the current position in the stream.
*/
unsigned char *cio_getbp(opj_cio_t *cio) {
return cio->bp;
}
/*
* Write a byte.
*/
bool cio_byteout(opj_cio_t *cio, unsigned char v) {
if (cio->bp >= cio->end) {
opj_event_msg(cio->cinfo, EVT_ERROR, "write error\n");
return false;
}
*cio->bp++ = v;
return true;
}
/*
* Read a byte.
*/
unsigned char cio_bytein(opj_cio_t *cio) {
if (cio->bp >= cio->end) {
opj_event_msg(cio->cinfo, EVT_ERROR, "read error\n");
return 0;
}
return *cio->bp++;
}
/*
* Write some bytes.
*
* v : value to write
* n : number of bytes to write
*/
unsigned int cio_write(opj_cio_t *cio, unsigned int v, int n) {
int i;
for (i = n - 1; i >= 0; i--) {
if( !cio_byteout(cio, (unsigned char) ((v >> (i << 3)) & 0xff)) )
return 0;
}
return n;
}
/*
* Read some bytes.
*
* n : number of bytes to read
*
* return : value of the n bytes read
*/
unsigned int cio_read(opj_cio_t *cio, int n) {
int i;
unsigned int v;
v = 0;
for (i = n - 1; i >= 0; i--) {
v += cio_bytein(cio) << (i << 3);
}
return v;
}
/*
* Skip some bytes.
*
* n : number of bytes to skip
*/
void cio_skip(opj_cio_t *cio, int n) {
cio->bp += n;
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __CIO_H
#define __CIO_H
/**
@file cio.h
@brief Implementation of a byte input-output process (CIO)
The functions in CIO.C have for goal to realize a byte input / output process.
*/
/** @defgroup CIO CIO - byte input-output stream */
/*@{*/
/** @name Exported functions (see also openjpeg.h) */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Number of bytes left before the end of the stream
@param cio CIO handle
@return Returns the number of bytes before the end of the stream
*/
int cio_numbytesleft(opj_cio_t *cio);
/**
Get pointer to the current position in the stream
@param cio CIO handle
@return Returns a pointer to the current position
*/
unsigned char *cio_getbp(opj_cio_t *cio);
/**
Write some bytes
@param cio CIO handle
@param v Value to write
@param n Number of bytes to write
@return Returns the number of bytes written or 0 if an error occured
*/
unsigned int cio_write(opj_cio_t *cio, unsigned int v, int n);
/**
Read some bytes
@param cio CIO handle
@param n Number of bytes to read
@return Returns the value of the n bytes read
*/
unsigned int cio_read(opj_cio_t *cio, int n);
/**
Skip some bytes
@param cio CIO handle
@param n Number of bytes to skip
*/
void cio_skip(opj_cio_t *cio, int n);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __CIO_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* NOTE:
* This is a modified version of the openjpeg dwt.c file.
* Average speed improvement compared to the original file (measured on
* my own machine, a P4 running at 3.0 GHz):
* 5x3 wavelets about 2 times faster
* 9x7 wavelets about 3 times faster
* for both, encoding and decoding.
*
* The better performance is caused by doing the 1-dimensional DWT
* within a temporary buffer where the data can be accessed sequential
* for both directions, horizontal and vertical. The 2d vertical DWT was
* the major bottleneck in the former version.
*
* I have also removed the "Add Patrick" part because it is not longer
* needed.
*
* 6/6/2005
* -Ive (aka Reiner Wahler)
* mail: ive@lilysoft.com
*/
#include "opj_includes.h"
/** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Forward lazy transform (horizontal)
*/
static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas);
/**
Forward lazy transform (vertical)
*/
static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas);
/**
Inverse lazy transform (horizontal)
*/
static void dwt_interleave_h(int *a, int *b, int dn, int sn, int cas);
/**
Inverse lazy transform (vertical)
*/
static void dwt_interleave_v(int *a, int *b, int dn, int sn, int x, int cas);
/**
Forward 5-3 wavelet tranform in 1-D
*/
static void dwt_encode_1(int *a, int dn, int sn, int cas);
/**
Inverse 5-3 wavelet tranform in 1-D
*/
static void dwt_decode_1(int *a, int dn, int sn, int cas);
/**
Forward 9-7 wavelet transform in 1-D
*/
static void dwt_encode_1_real(int *a, int dn, int sn, int cas);
/**
Inverse 9-7 wavelet transform in 1-D
*/
static void dwt_decode_1_real(int *a, int dn, int sn, int cas);
/**
FIXME : comment ???
*/
static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize);
/*@}*/
/*@}*/
#define S(i) a[(i)*2]
#define D(i) a[(1+(i)*2)]
#define S_(i) ((i)<0?S(0):((i)>=sn?S(sn-1):S(i)))
#define D_(i) ((i)<0?D(0):((i)>=dn?D(dn-1):D(i)))
/* new */
#define SS_(i) ((i)<0?S(0):((i)>=dn?S(dn-1):S(i)))
#define DD_(i) ((i)<0?D(0):((i)>=sn?D(sn-1):D(i)))
/* <summary> */
/* This table contains the norms of the 5-3 wavelets for different bands. */
/* </summary> */
static const double dwt_norms[4][10] = {
{1.000, 1.500, 2.750, 5.375, 10.68, 21.34, 42.67, 85.33, 170.7, 341.3},
{1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
{1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9},
{.7186, .9218, 1.586, 3.043, 6.019, 12.01, 24.00, 47.97, 95.93}
};
/* <summary> */
/* This table contains the norms of the 9-7 wavelets for different bands. */
/* </summary> */
static const double dwt_norms_real[4][10] = {
{1.000, 1.965, 4.177, 8.403, 16.90, 33.84, 67.69, 135.3, 270.6, 540.9},
{2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
{2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0},
{2.080, 3.865, 8.307, 17.18, 34.71, 69.59, 139.3, 278.6, 557.2}
};
/*
==========================================================
local functions
==========================================================
*/
/* <summary> */
/* Forward lazy transform (horizontal). */
/* </summary> */
static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas) {
int i;
for (i=0; i<sn; i++) b[i]=a[2*i+cas];
for (i=0; i<dn; i++) b[sn+i]=a[(2*i+1-cas)];
}
/* <summary> */
/* Forward lazy transform (vertical). */
/* </summary> */
static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas) {
int i;
for (i=0; i<sn; i++) b[i*x]=a[2*i+cas];
for (i=0; i<dn; i++) b[(sn+i)*x]=a[(2*i+1-cas)];
}
/* <summary> */
/* Inverse lazy transform (horizontal). */
/* </summary> */
static void dwt_interleave_h(int *a, int *b, int dn, int sn, int cas) {
int i;
int *ai = NULL;
int *bi = NULL;
ai = a;
bi = b + cas;
for (i = 0; i < sn; i++) {
*bi = *ai;
bi += 2;
ai++;
}
ai = a + sn;
bi = b + 1 - cas;
for (i = 0; i < dn; i++) {
*bi = *ai;
bi += 2;
ai++;
}
}
/* <summary> */
/* Inverse lazy transform (vertical). */
/* </summary> */
static void dwt_interleave_v(int *a, int *b, int dn, int sn, int x, int cas) {
int i;
int *ai = NULL;
int *bi = NULL;
ai = a;
bi = b + cas;
for (i = 0; i < sn; i++) {
*bi = *ai;
bi += 2;
ai += x;
}
ai = a + (sn * x);
bi = b + 1 - cas;
for (i = 0; i < dn; i++) {
*bi = *ai;
bi += 2;
ai += x;
}
}
/* <summary> */
/* Forward 5-3 wavelet tranform in 1-D. */
/* </summary> */
static void dwt_encode_1(int *a, int dn, int sn, int cas) {
int i;
if (!cas) {
if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < dn; i++) D(i) -= (S_(i) + S_(i + 1)) >> 1;
for (i = 0; i < sn; i++) S(i) += (D_(i - 1) + D_(i) + 2) >> 2;
}
} else {
if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
S(0) *= 2;
else {
for (i = 0; i < dn; i++) S(i) -= (DD_(i) + DD_(i - 1)) >> 1;
for (i = 0; i < sn; i++) D(i) += (SS_(i) + SS_(i + 1) + 2) >> 2;
}
}
}
/* <summary> */
/* Inverse 5-3 wavelet tranform in 1-D. */
/* </summary> */
static void dwt_decode_1(int *a, int dn, int sn, int cas) {
int i;
if (!cas) {
if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < sn; i++) S(i) -= (D_(i - 1) + D_(i) + 2) >> 2;
for (i = 0; i < dn; i++) D(i) += (S_(i) + S_(i + 1)) >> 1;
}
} else {
if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */
S(0) /= 2;
else {
for (i = 0; i < sn; i++) D(i) -= (SS_(i) + SS_(i + 1) + 2) >> 2;
for (i = 0; i < dn; i++) S(i) += (DD_(i) + DD_(i - 1)) >> 1;
}
}
}
/* <summary> */
/* Forward 9-7 wavelet transform in 1-D. */
/* </summary> */
static void dwt_encode_1_real(int *a, int dn, int sn, int cas) {
int i;
if (!cas) {
if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < dn; i++)
D(i) -= fix_mul(S_(i) + S_(i + 1), 12993);
for (i = 0; i < sn; i++)
S(i) -= fix_mul(D_(i - 1) + D_(i), 434);
for (i = 0; i < dn; i++)
D(i) += fix_mul(S_(i) + S_(i + 1), 7233);
for (i = 0; i < sn; i++)
S(i) += fix_mul(D_(i - 1) + D_(i), 3633);
for (i = 0; i < dn; i++)
D(i) = fix_mul(D(i), 5038); /*5038 */
for (i = 0; i < sn; i++)
S(i) = fix_mul(S(i), 6659); /*6660 */
}
} else {
if ((sn > 0) || (dn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < dn; i++)
S(i) -= fix_mul(DD_(i) + DD_(i - 1), 12993);
for (i = 0; i < sn; i++)
D(i) -= fix_mul(SS_(i) + SS_(i + 1), 434);
for (i = 0; i < dn; i++)
S(i) += fix_mul(DD_(i) + DD_(i - 1), 7233);
for (i = 0; i < sn; i++)
D(i) += fix_mul(SS_(i) + SS_(i + 1), 3633);
for (i = 0; i < dn; i++)
S(i) = fix_mul(S(i), 5038); /*5038 */
for (i = 0; i < sn; i++)
D(i) = fix_mul(D(i), 6659); /*6660 */
}
}
}
/* <summary> */
/* Inverse 9-7 wavelet transform in 1-D. */
/* </summary> */
static void dwt_decode_1_real(int *a, int dn, int sn, int cas) {
int i;
if (!cas) {
if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < sn; i++)
S(i) = fix_mul(S(i), 10078); /* 10076 */
for (i = 0; i < dn; i++)
D(i) = fix_mul(D(i), 13318); /* 13320 */
for (i = 0; i < sn; i++)
S(i) -= fix_mul(D_(i - 1) + D_(i), 3633);
for (i = 0; i < dn; i++)
D(i) -= fix_mul(S_(i) + S_(i + 1), 7233);
for (i = 0; i < sn; i++)
S(i) += fix_mul(D_(i - 1) + D_(i), 434);
for (i = 0; i < dn; i++)
D(i) += fix_mul(S_(i) + S_(i + 1), 12994); /* 12993 */
}
} else {
if ((sn > 0) || (dn > 1)) { /* NEW : CASE ONE ELEMENT */
for (i = 0; i < sn; i++)
D(i) = fix_mul(D(i), 10078); /* 10076 */
for (i = 0; i < dn; i++)
S(i) = fix_mul(S(i), 13318); /* 13320 */
for (i = 0; i < sn; i++)
D(i) -= fix_mul(SS_(i) + SS_(i + 1), 3633);
for (i = 0; i < dn; i++)
S(i) -= fix_mul(DD_(i) + DD_(i - 1), 7233);
for (i = 0; i < sn; i++)
D(i) += fix_mul(SS_(i) + SS_(i + 1), 434);
for (i = 0; i < dn; i++)
S(i) += fix_mul(DD_(i) + DD_(i - 1), 12994); /* 12993 */
}
}
}
static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize) {
int p, n;
p = int_floorlog2(stepsize) - 13;
n = 11 - int_floorlog2(stepsize);
bandno_stepsize->mant = (n < 0 ? stepsize >> -n : stepsize << n) & 0x7ff;
bandno_stepsize->expn = numbps - p;
}
/*
==========================================================
DWT interface
==========================================================
*/
/* <summary> */
/* Forward 5-3 wavelet tranform in 2-D. */
/* </summary> */
void dwt_encode(opj_tcd_tilecomp_t * tilec) {
int i, j, k;
int *a = NULL;
int *aj = NULL;
int *bj = NULL;
int w, l;
w = tilec->x1-tilec->x0;
l = tilec->numresolutions-1;
a = tilec->data;
for (i = 0; i < l; i++) {
int rw; /* width of the resolution level computed */
int rh; /* heigth of the resolution level computed */
int rw1; /* width of the resolution level once lower than computed one */
int rh1; /* height of the resolution level once lower than computed one */
int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
int dn, sn;
rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
cas_row = tilec->resolutions[l - i].x0 % 2;
cas_col = tilec->resolutions[l - i].y0 % 2;
sn = rh1;
dn = rh - rh1;
bj = (int*)opj_malloc(rh * sizeof(int));
for (j = 0; j < rw; j++) {
aj = a + j;
for (k = 0; k < rh; k++) bj[k] = aj[k*w];
dwt_encode_1(bj, dn, sn, cas_col);
dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
}
opj_free(bj);
sn = rw1;
dn = rw - rw1;
bj = (int*)opj_malloc(rw * sizeof(int));
for (j = 0; j < rh; j++) {
aj = a + j * w;
for (k = 0; k < rw; k++) bj[k] = aj[k];
dwt_encode_1(bj, dn, sn, cas_row);
dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
}
opj_free(bj);
}
}
/* <summary> */
/* Inverse 5-3 wavelet tranform in 2-D. */
/* </summary> */
void dwt_decode(opj_tcd_tilecomp_t * tilec, int stop) {
int i, j, k;
int *a = NULL;
int *aj = NULL;
int *bj = NULL;
int w, l;
w = tilec->x1-tilec->x0;
l = tilec->numresolutions-1;
a = tilec->data;
for (i = l - 1; i >= stop; i--) {
int rw; /* width of the resolution level computed */
int rh; /* heigth of the resolution level computed */
int rw1; /* width of the resolution level once lower than computed one */
int rh1; /* height of the resolution level once lower than computed one */
int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
int dn, sn;
rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
cas_row = tilec->resolutions[l - i].x0 % 2;
cas_col = tilec->resolutions[l - i].y0 % 2;
sn = rw1;
dn = rw - rw1;
bj = (int*)opj_malloc(rw * sizeof(int));
for (j = 0; j < rh; j++) {
aj = a + j*w;
dwt_interleave_h(aj, bj, dn, sn, cas_row);
dwt_decode_1(bj, dn, sn, cas_row);
for (k = 0; k < rw; k++) aj[k] = bj[k];
}
opj_free(bj);
sn = rh1;
dn = rh - rh1;
bj = (int*)opj_malloc(rh * sizeof(int));
for (j = 0; j < rw; j++) {
aj = a + j;
dwt_interleave_v(aj, bj, dn, sn, w, cas_col);
dwt_decode_1(bj, dn, sn, cas_col);
for (k = 0; k < rh; k++) aj[k * w] = bj[k];
}
opj_free(bj);
}
}
/* <summary> */
/* Get gain of 5-3 wavelet transform. */
/* </summary> */
int dwt_getgain(int orient) {
if (orient == 0)
return 0;
if (orient == 1 || orient == 2)
return 1;
return 2;
}
/* <summary> */
/* Get norm of 5-3 wavelet. */
/* </summary> */
double dwt_getnorm(int level, int orient) {
return dwt_norms[orient][level];
}
/* <summary> */
/* Forward 9-7 wavelet transform in 2-D. */
/* </summary> */
void dwt_encode_real(opj_tcd_tilecomp_t * tilec) {
int i, j, k;
int *a = NULL;
int *aj = NULL;
int *bj = NULL;
int w, l;
w = tilec->x1-tilec->x0;
l = tilec->numresolutions-1;
a = tilec->data;
for (i = 0; i < l; i++) {
int rw; /* width of the resolution level computed */
int rh; /* heigth of the resolution level computed */
int rw1; /* width of the resolution level once lower than computed one */
int rh1; /* height of the resolution level once lower than computed one */
int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
int dn, sn;
rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
cas_row = tilec->resolutions[l - i].x0 % 2;
cas_col = tilec->resolutions[l - i].y0 % 2;
sn = rh1;
dn = rh - rh1;
bj = (int*)opj_malloc(rh * sizeof(int));
for (j = 0; j < rw; j++) {
aj = a + j;
for (k = 0; k < rh; k++) bj[k] = aj[k*w];
dwt_encode_1_real(bj, dn, sn, cas_col);
dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col);
}
opj_free(bj);
sn = rw1;
dn = rw - rw1;
bj = (int*)opj_malloc(rw * sizeof(int));
for (j = 0; j < rh; j++) {
aj = a + j * w;
for (k = 0; k < rw; k++) bj[k] = aj[k];
dwt_encode_1_real(bj, dn, sn, cas_row);
dwt_deinterleave_h(bj, aj, dn, sn, cas_row);
}
opj_free(bj);
}
}
/* <summary> */
/* Inverse 9-7 wavelet transform in 2-D. */
/* </summary> */
void dwt_decode_real(opj_tcd_tilecomp_t * tilec, int stop) {
int i, j, k;
int *a = NULL;
int *aj = NULL;
int *bj = NULL;
int w, l;
w = tilec->x1-tilec->x0;
l = tilec->numresolutions-1;
a = tilec->data;
for (i = l-1; i >= stop; i--) {
int rw; /* width of the resolution level computed */
int rh; /* heigth of the resolution level computed */
int rw1; /* width of the resolution level once lower than computed one */
int rh1; /* height of the resolution level once lower than computed one */
int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
int dn, sn;
rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0;
rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0;
rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0;
rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0;
cas_col = tilec->resolutions[l - i].x0 % 2; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */
cas_row = tilec->resolutions[l - i].y0 % 2; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */
sn = rw1;
dn = rw-rw1;
bj = (int*)opj_malloc(rw * sizeof(int));
for (j = 0; j < rh; j++) {
aj = a + j * w;
dwt_interleave_h(aj, bj, dn, sn, cas_col);
dwt_decode_1_real(bj, dn, sn, cas_col);
for (k = 0; k < rw; k++) aj[k] = bj[k];
}
opj_free(bj);
sn = rh1;
dn = rh-rh1;
bj = (int*)opj_malloc(rh * sizeof(int));
for (j = 0; j < rw; j++) {
aj = a + j;
dwt_interleave_v(aj, bj, dn, sn, w, cas_row);
dwt_decode_1_real(bj, dn, sn, cas_row);
for (k = 0; k < rh; k++) aj[k * w] = bj[k];
}
opj_free(bj);
}
}
/* <summary> */
/* Get gain of 9-7 wavelet transform. */
/* </summary> */
int dwt_getgain_real(int orient) {
(void)orient;
return 0;
}
/* <summary> */
/* Get norm of 9-7 wavelet. */
/* </summary> */
double dwt_getnorm_real(int level, int orient) {
return dwt_norms_real[orient][level];
}
void dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, int prec) {
int numbands, bandno;
numbands = 3 * tccp->numresolutions - 2;
for (bandno = 0; bandno < numbands; bandno++) {
double stepsize;
int resno, level, orient, gain;
resno = (bandno == 0) ? 0 : ((bandno - 1) / 3 + 1);
orient = (bandno == 0) ? 0 : ((bandno - 1) % 3 + 1);
level = tccp->numresolutions - 1 - resno;
gain = (tccp->qmfbid == 0) ? 0 : ((orient == 0) ? 0 : (((orient == 1) || (orient == 2)) ? 1 : 2));
if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) {
stepsize = 1.0;
} else {
double norm = dwt_norms_real[orient][level];
stepsize = (1 << (gain)) / norm;
}
dwt_encode_stepsize((int) floor(stepsize * 8192.0), prec + gain, &tccp->stepsizes[bandno]);
}
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DWT_H
#define __DWT_H
/**
@file dwt.h
@brief Implementation of a discrete wavelet transform (DWT)
The functions in DWT.C have for goal to realize forward and inverse discret wavelet
transform with filter 5-3 (reversible) and filter 9-7 (irreversible). The functions in
DWT.C are used by some function in TCD.C.
*/
/** @defgroup DWT DWT - Implementation of a discrete wavelet transform */
/*@{*/
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Forward 5-3 wavelet tranform in 2-D.
Apply a reversible DWT transform to a component of an image.
@param tilec Tile component information (current tile)
*/
void dwt_encode(opj_tcd_tilecomp_t * tilec);
/**
Inverse 5-3 wavelet tranform in 2-D.
Apply a reversible inverse DWT transform to a component of an image.
@param tilec Tile component information (current tile)
@param stop FIXME Number of decoded resolution levels ?
*/
void dwt_decode(opj_tcd_tilecomp_t * tilec, int stop);
/**
Get the gain of a subband for the reversible 5-3 DWT.
@param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
@return Returns 0 if orient = 0, returns 1 if orient = 1 or 2, returns 2 otherwise
*/
int dwt_getgain(int orient);
/**
Get the norm of a wavelet function of a subband at a specified level for the reversible 5-3 DWT.
@param level Level of the wavelet function
@param orient Band of the wavelet function
@return Returns the norm of the wavelet function
*/
double dwt_getnorm(int level, int orient);
/**
Forward 9-7 wavelet transform in 2-D.
Apply an irreversible DWT transform to a component of an image.
@param tilec Tile component information (current tile)
*/
void dwt_encode_real(opj_tcd_tilecomp_t * tilec);
/**
Inverse 9-7 wavelet transform in 2-D.
Apply an irreversible inverse DWT transform to a component of an image.
@param tilec Tile component information (current tile)
@param stop FIXME Number of decoded resolution levels ?
*/
void dwt_decode_real(opj_tcd_tilecomp_t * tilec, int stop);
/**
Get the gain of a subband for the irreversible 9-7 DWT.
@param orient Number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
@return Returns the gain of the 9-7 wavelet transform
*/
int dwt_getgain_real(int orient);
/**
Get the norm of a wavelet function of a subband at a specified level for the irreversible 9-7 DWT
@param level Level of the wavelet function
@param orient Band of the wavelet function
@return Returns the norm of the 9-7 wavelet
*/
double dwt_getnorm_real(int level, int orient);
/**
FIXME : comment ???
@param tccp
@param prec
*/
void dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, int prec);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __DWT_H */

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/* ==========================================================
Utility functions
==========================================================*/
#if !defined(_MSC_VER) && !defined(__MINGW32__)
static char*
i2a(unsigned i, char *a, unsigned r) {
if (i/r > 0) a = i2a(i/r,a,r);
*a = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"[i%r];
return a+1;
}
/**
Transforms integer i into an ascii string and stores the result in a;
string is encoded in the base indicated by r.
@param i Number to be converted
@param a String result
@param r Base of value; must be in the range 2 - 36
@return Returns a
*/
static char *
_itoa(int i, char *a, int r) {
r = ((r < 2) || (r > 36)) ? 10 : r;
if(i < 0) {
*a = '-';
*i2a(-i, a+1, r) = 0;
}
else *i2a(i, a, r) = 0;
return a;
}
#endif /* !WIN32 */
/* ----------------------------------------------------------------------- */
opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context) {
if(cinfo) {
opj_event_mgr_t *previous = cinfo->event_mgr;
cinfo->event_mgr = event_mgr;
cinfo->client_data = context;
return previous;
}
return NULL;
}
bool opj_event_msg(opj_common_ptr cinfo, int event_type, const char *fmt, ...) {
#define MSG_SIZE 512 /* 512 bytes should be more than enough for a short message */
opj_msg_callback msg_handler = NULL;
opj_event_mgr_t *event_mgr = cinfo->event_mgr;
if(event_mgr != NULL) {
switch(event_type) {
case EVT_ERROR:
msg_handler = event_mgr->error_handler;
break;
case EVT_WARNING:
msg_handler = event_mgr->warning_handler;
break;
case EVT_INFO:
msg_handler = event_mgr->info_handler;
break;
default:
break;
}
if(msg_handler == NULL) {
return false;
}
} else {
return false;
}
if ((fmt != NULL) && (event_mgr != NULL)) {
va_list arg;
int str_length, i, j;
char message[MSG_SIZE];
memset(message, 0, MSG_SIZE);
/* initialize the optional parameter list */
va_start(arg, fmt);
/* check the length of the format string */
str_length = (strlen(fmt) > MSG_SIZE) ? MSG_SIZE : strlen(fmt);
/* parse the format string and put the result in 'message' */
for (i = 0, j = 0; i < str_length; ++i) {
if (fmt[i] == '%') {
if (i + 1 < str_length) {
switch(tolower(fmt[i + 1])) {
case '%' :
message[j++] = '%';
break;
case 'o' : /* octal numbers */
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 8);
strcat(message, tmp);
j += strlen(tmp);
++i;
break;
}
case 'i' : /* decimal numbers */
case 'd' :
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 10);
strcat(message, tmp);
j += strlen(tmp);
++i;
break;
}
case 'x' : /* hexadecimal numbers */
{
char tmp[16];
_itoa(va_arg(arg, int), tmp, 16);
strcat(message, tmp);
j += strlen(tmp);
++i;
break;
}
case 's' : /* strings */
{
char *tmp = va_arg(arg, char*);
strcat(message, tmp);
j += strlen(tmp);
++i;
break;
}
case 'f' : /* floats */
{
char tmp[16];
double value = va_arg(arg, double);
sprintf(tmp, "%f", value);
strcat(message, tmp);
j += strlen(tmp);
++i;
break;
}
};
} else {
message[j++] = fmt[i];
}
} else {
message[j++] = fmt[i];
};
}
/* deinitialize the optional parameter list */
va_end(arg);
/* output the message to the user program */
msg_handler(message, cinfo->client_data);
}
return true;
}

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __EVENT_H
#define __EVENT_H
/**
@file event.h
@brief Implementation of a event callback system
The functions in EVENT.C have for goal to send output messages (errors, warnings, debug) to the user.
*/
#define EVT_ERROR 1 /**< Error event type */
#define EVT_WARNING 2 /**< Warning event type */
#define EVT_INFO 4 /**< Debug event type */
/** @defgroup EVENT EVENT - Implementation of a event callback system */
/*@{*/
/** @name Exported functions (see also openjpeg.h) */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Write formatted data to a string and send the string to a user callback.
@param cinfo Codec context info
@param event_type Event type or callback to use to send the message
@param fmt Format-control string (plus optionnal arguments)
@return Returns true if successful, returns false otherwise
*/
bool opj_event_msg(opj_common_ptr cinfo, int event_type, const char *fmt, ...);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __EVENT_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __FIX_H
#define __FIX_H
#if defined(_MSC_VER) || defined(__BORLANDC__)
#define int64 __int64
#else
#define int64 long long
#endif
/**
@file fix.h
@brief Implementation of operations of specific multiplication (FIX)
The functions in FIX.H have for goal to realize specific multiplication.
*/
/** @defgroup FIX FIX - Implementation of operations of specific multiplication */
/*@{*/
/**
Multiply two fixed-precision rational numbers.
@param a
@param b
@return Returns a * b
*/
static INLINE int fix_mul(int a, int b) {
int64 temp = (int64) a * (int64) b >> 12;
return (int) ((temp >> 1) + (temp & 1)) ;
}
/*@}*/
#endif /* __FIX_H */

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
opj_image_t* opj_image_create0() {
opj_image_t *image = (opj_image_t*)opj_malloc(sizeof(opj_image_t));
return image;
}
opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc) {
int compno;
opj_image_t *image = NULL;
image = (opj_image_t*)opj_malloc(sizeof(opj_image_t));
if(image) {
image->color_space = clrspc;
image->numcomps = numcmpts;
/* allocate memory for the per-component information */
image->comps = (opj_image_comp_t*)opj_malloc(image->numcomps * sizeof(opj_image_comp_t));
if(!image->comps) {
opj_image_destroy(image);
return NULL;
}
/* create the individual image components */
for(compno = 0; compno < numcmpts; compno++) {
opj_image_comp_t *comp = &image->comps[compno];
comp->dx = cmptparms[compno].dx;
comp->dy = cmptparms[compno].dy;
comp->w = cmptparms[compno].w;
comp->h = cmptparms[compno].h;
comp->x0 = cmptparms[compno].x0;
comp->y0 = cmptparms[compno].y0;
comp->prec = cmptparms[compno].prec;
comp->bpp = cmptparms[compno].bpp;
comp->sgnd = cmptparms[compno].sgnd;
comp->data = (int*)opj_malloc(comp->w * comp->h * sizeof(int));
if(!comp->data) {
opj_image_destroy(image);
return NULL;
}
}
}
return image;
}
void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) {
int i;
if(image) {
if(image->comps) {
/* image components */
for(i = 0; i < image->numcomps; i++) {
opj_image_comp_t *image_comp = &image->comps[i];
if(image_comp->data) {
opj_free(image_comp->data);
}
}
opj_free(image->comps);
}
opj_free(image);
}
}

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __IMAGE_H
#define __IMAGE_H
/**
@file image.h
@brief Implementation of operations on images (IMAGE)
The functions in IMAGE.C have for goal to realize operations on images.
*/
/** @defgroup IMAGE IMAGE - Implementation of operations on images */
/*@{*/
/**
Create an empty image
@todo this function should be removed
@return returns an empty image if successful, returns NULL otherwise
*/
opj_image_t* opj_image_create0();
/*@}*/
#endif /* __IMAGE_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __INT_H
#define __INT_H
/**
@file int.h
@brief Implementation of operations on integers (INT)
The functions in INT.H have for goal to realize operations on integers.
*/
/** @defgroup INT INT - Implementation of operations on integers */
/*@{*/
/** @name Exported functions (see also openjpeg.h) */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Get the minimum of two integers
@return Returns a if a < b else b
*/
static INLINE int int_min(int a, int b) {
return a < b ? a : b;
}
/**
Get the maximum of two integers
@return Returns a if a > b else b
*/
static INLINE int int_max(int a, int b) {
return (a > b) ? a : b;
}
/**
Clamp an integer inside an interval
@return
<ul>
<li>Returns a if (min < a < max)
<li>Returns max if (a > max)
<li>Returns min if (a < min)
</ul>
*/
static INLINE int int_clamp(int a, int min, int max) {
if (a < min)
return min;
if (a > max)
return max;
return a;
}
/**
@return Get absolute value of integer
*/
static INLINE int int_abs(int a) {
return a < 0 ? -a : a;
}
/**
Divide an integer and round upwards
@return Returns a divided by b
*/
static INLINE int int_ceildiv(int a, int b) {
return (a + b - 1) / b;
}
/**
Divide an integer by a power of 2 and round upwards
@return Returns a divided by 2^b
*/
static INLINE int int_ceildivpow2(int a, int b) {
return (a + (1 << b) - 1) >> b;
}
/**
Divide an integer by a power of 2 and round downwards
@return Returns a divided by 2^b
*/
static INLINE int int_floordivpow2(int a, int b) {
return a >> b;
}
/**
Get logarithm of an integer and round downwards
@return Returns log2(a)
*/
static INLINE int int_floorlog2(int a) {
int l;
for (l = 0; a > 1; l++) {
a >>= 1;
}
return l;
}
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __J2K_H
#define __J2K_H
/**
@file j2k.h
@brief The JPEG-2000 Codestream Reader/Writer (J2K)
The functions in J2K.C have for goal to read/write the several parts of the codestream: markers and data.
*/
/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/
#define J2K_CP_CSTY_PRT 0x01
#define J2K_CP_CSTY_SOP 0x02
#define J2K_CP_CSTY_EPH 0x04
#define J2K_CCP_CSTY_PRT 0x01
#define J2K_CCP_CBLKSTY_LAZY 0x01
#define J2K_CCP_CBLKSTY_RESET 0x02
#define J2K_CCP_CBLKSTY_TERMALL 0x04
#define J2K_CCP_CBLKSTY_VSC 0x08
#define J2K_CCP_CBLKSTY_PTERM 0x10
#define J2K_CCP_CBLKSTY_SEGSYM 0x20
#define J2K_CCP_QNTSTY_NOQNT 0
#define J2K_CCP_QNTSTY_SIQNT 1
#define J2K_CCP_QNTSTY_SEQNT 2
/* ----------------------------------------------------------------------- */
#define J2K_MS_SOC 0xff4f /**< SOC marker value */
#define J2K_MS_SOT 0xff90 /**< SOT marker value */
#define J2K_MS_SOD 0xff93 /**< SOD marker value */
#define J2K_MS_EOC 0xffd9 /**< EOC marker value */
#define J2K_MS_SIZ 0xff51 /**< SIZ marker value */
#define J2K_MS_COD 0xff52 /**< COD marker value */
#define J2K_MS_COC 0xff53 /**< COC marker value */
#define J2K_MS_RGN 0xff5e /**< RGN marker value */
#define J2K_MS_QCD 0xff5c /**< QCD marker value */
#define J2K_MS_QCC 0xff5d /**< QCC marker value */
#define J2K_MS_POC 0xff5f /**< POC marker value */
#define J2K_MS_TLM 0xff55 /**< TLM marker value */
#define J2K_MS_PLM 0xff57 /**< PLM marker value */
#define J2K_MS_PLT 0xff58 /**< PLT marker value */
#define J2K_MS_PPM 0xff60 /**< PPM marker value */
#define J2K_MS_PPT 0xff61 /**< PPT marker value */
#define J2K_MS_SOP 0xff91 /**< SOP marker value */
#define J2K_MS_EPH 0xff92 /**< EPH marker value */
#define J2K_MS_CRG 0xff63 /**< CRG marker value */
#define J2K_MS_COM 0xff64 /**< COM marker value */
/* ----------------------------------------------------------------------- */
/**
Values that specify the status of the decoding process when decoding the main header.
These values may be combined with a | operator.
*/
typedef enum J2K_STATUS {
J2K_STATE_MHSOC = 0x0001, /**< a SOC marker is expected */
J2K_STATE_MHSIZ = 0x0002, /**< a SIZ marker is expected */
J2K_STATE_MH = 0x0004, /**< the decoding process is in the main header */
J2K_STATE_TPHSOT = 0x0008, /**< the decoding process is in a tile part header and expects a SOT marker */
J2K_STATE_TPH = 0x0010, /**< the decoding process is in a tile part header */
J2K_STATE_MT = 0x0020, /**< the EOC marker has just been read */
J2K_STATE_NEOC = 0x0040 /**< the decoding process must not expect a EOC marker because the codestream is truncated */
} J2K_STATUS;
/* ----------------------------------------------------------------------- */
/**
Quantization stepsize
*/
typedef struct opj_stepsize {
/** exponent */
int expn;
/** mantissa */
int mant;
} opj_stepsize_t;
/**
Tile-component coding parameters
*/
typedef struct opj_tccp {
/** coding style */
int csty;
/** number of resolutions */
int numresolutions;
/** code-blocks width */
int cblkw;
/** code-blocks height */
int cblkh;
/** code-block coding style */
int cblksty;
/** discrete wavelet transform identifier */
int qmfbid;
/** quantisation style */
int qntsty;
/** stepsizes used for quantization */
opj_stepsize_t stepsizes[J2K_MAXBANDS];
/** number of guard bits */
int numgbits;
/** Region Of Interest shift */
int roishift;
/** precinct width */
int prcw[J2K_MAXRLVLS];
/** precinct height */
int prch[J2K_MAXRLVLS];
} opj_tccp_t;
/**
Tile coding parameters :
this structure is used to store coding/decoding parameters common to all
tiles (information like COD, COC in main header)
*/
typedef struct opj_tcp {
/** 1 : first part-tile of a tile */
int first;
/** coding style */
int csty;
/** progression order */
OPJ_PROG_ORDER prg;
/** number of layers */
int numlayers;
/** multi-component transform identifier */
int mct;
/** rates of layers */
float rates[100];
/** number of progression order changes */
int numpocs;
/** indicates if a POC marker has been used O:NO, 1:YES */
int POC;
/** progression order changes */
opj_poc_t pocs[32];
/** packet header store there for futur use in t2_decode_packet */
unsigned char *ppt_data;
/** pointer remaining on the first byte of the first header if ppt is used */
unsigned char *ppt_data_first;
/** If ppt == 1 --> there was a PPT marker for the present tile */
int ppt;
/** used in case of multiple marker PPT (number of info already stored) */
int ppt_store;
/** ppmbug1 */
int ppt_len;
/** add fixed_quality */
float distoratio[100];
/** tile-component coding parameters */
opj_tccp_t *tccps;
} opj_tcp_t;
/**
Coding parameters
*/
typedef struct opj_cp {
/** allocation by rate/distortion */
int disto_alloc;
/** allocation by fixed layer */
int fixed_alloc;
/** add fixed_quality */
int fixed_quality;
/** if != 0, then original dimension divided by 2^(reduce); if == 0 or not used, image is decoded to the full resolution */
int reduce;
/** if != 0, then only the first "layer" layers are decoded; if == 0 or not used, all the quality layers are decoded */
int layer;
/** 0 = no index || 1 = index */
int index_on;
/** XTOsiz */
int tx0;
/** YTOsiz */
int ty0;
/** XTsiz */
int tdx;
/** YTsiz */
int tdy;
/** comment for coding */
char *comment;
/** number of tiles in width */
int tw;
/** number of tiles in heigth */
int th;
/** ID number of the tiles present in the codestream */
int *tileno;
/** size of the vector tileno */
int tileno_size;
/** packet header store there for futur use in t2_decode_packet */
unsigned char *ppm_data;
/** pointer remaining on the first byte of the first header if ppm is used */
unsigned char *ppm_data_first;
/** if ppm == 1 --> there was a PPM marker for the present tile */
int ppm;
/** use in case of multiple marker PPM (number of info already store) */
int ppm_store;
/** use in case of multiple marker PPM (case on non-finished previous info) */
int ppm_previous;
/** ppmbug1 */
int ppm_len;
/** tile coding parameters */
opj_tcp_t *tcps;
/** fixed layer */
int *matrice;
} opj_cp_t;
/**
Information concerning a packet inside tile
*/
typedef struct opj_packet_info {
/** start position */
int start_pos;
/** end position */
int end_pos;
/** ADD for Marcela */
double disto;
} opj_packet_info_t;
/**
Index structure : information regarding tiles inside image
*/
typedef struct opj_tile_info {
/** value of thresh for each layer by tile cfr. Marcela */
double *thresh;
/** number of tile */
int num_tile;
/** start position */
int start_pos;
/** end position of the header */
int end_header;
/** end position */
int end_pos;
/** precinct number for each resolution level (width) */
int pw[33];
/** precinct number for each resolution level (height) */
int ph[33];
/** precinct size (in power of 2), in X for each resolution level */
int pdx[33];
/** precinct size (in power of 2), in Y for each resolution level */
int pdy[33];
/** information concerning packets inside tile */
opj_packet_info_t *packet;
/** add fixed_quality */
int nbpix;
/** add fixed_quality */
double distotile;
} opj_tile_info_t;
/**
Index structure
*/
typedef struct opj_image_info {
/** 0 = no index || 1 = index */
int index_on;
/** maximum distortion reduction on the whole image (add for Marcela) */
double D_max;
/** packet number */
int num;
/** writing the packet in the index with t2_encode_packets */
int index_write;
/** image width */
int image_w;
/** image height */
int image_h;
/** progression order */
OPJ_PROG_ORDER prog;
/** tile size in x */
int tile_x;
/** tile size in y */
int tile_y;
/** */
int tile_Ox;
/** */
int tile_Oy;
/** number of tiles in X */
int tw;
/** number of tiles in Y */
int th;
/** component numbers */
int comp;
/** number of layer */
int layer;
/** number of decomposition */
int decomposition;
/** main header position */
int main_head_end;
/** codestream's size */
int codestream_size;
/** information regarding tiles inside image */
opj_tile_info_t *tile;
} opj_image_info_t;
/**
JPEG-2000 codestream reader/writer
*/
typedef struct opj_j2k {
/** codec context */
opj_common_ptr cinfo;
/** locate in which part of the codestream the decoder is (main header, tile header, end) */
int state;
/** number of the tile curently concern by coding/decoding */
int curtileno;
/**
locate the position of the end of the tile in the codestream,
used to detect a truncated codestream (in j2k_read_sod)
*/
unsigned char *eot;
/**
locate the start position of the SOT marker of the current coded tile:
after encoding the tile, a jump (in j2k_write_sod) is done to the SOT marker to store the value of its length.
*/
int sot_start;
int sod_start;
/**
as the J2K-file is written in several parts during encoding,
it enables to make the right correction in position return by cio_tell
*/
int pos_correction;
/** array used to store the data of each tile */
unsigned char **tile_data;
/** array used to store the length of each tile */
int *tile_len;
/**
decompression only :
store decoding parameters common to all tiles (information like COD, COC in main header)
*/
opj_tcp_t *default_tcp;
/** pointer to the encoded / decoded image */
opj_image_t *image;
/** pointer to the coding parameters */
opj_cp_t *cp;
/** helper used to write the index file */
opj_image_info_t *image_info;
/** pointer to the byte i/o stream */
opj_cio_t *cio;
} opj_j2k_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Creates a J2K decompression structure
@param cinfo Codec context info
@return Returns a handle to a J2K decompressor if successful, returns NULL otherwise
*/
opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo);
/**
Destroy a J2K decompressor handle
@param j2k J2K decompressor handle to destroy
*/
void j2k_destroy_decompress(opj_j2k_t *j2k);
/**
Setup the decoder decoding parameters using user parameters.
Decoding parameters are returned in j2k->cp.
@param j2k J2K decompressor handle
@param parameters decompression parameters
*/
void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters);
/**
Decode an image from a JPEG-2000 codestream
@param j2k J2K decompressor handle
@param cio Input buffer stream
@return Returns a decoded image if successful, returns NULL otherwise
*/
opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio);
/**
Decode an image form a JPT-stream (JPEG 2000, JPIP)
@param j2k J2K decompressor handle
@param cio Input buffer stream
@return Returns a decoded image if successful, returns NULL otherwise
*/
opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio);
/**
Creates a J2K compression structure
@param cinfo Codec context info
@return Returns a handle to a J2K compressor if successful, returns NULL otherwise
*/
opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo);
/**
Destroy a J2K compressor handle
@param j2k J2K compressor handle to destroy
*/
void j2k_destroy_compress(opj_j2k_t *j2k);
/**
Setup the encoder parameters using the current image and using user parameters.
Coding parameters are returned in j2k->cp.
@param j2k J2K compressor handle
@param parameters compression parameters
@param image input filled image
*/
void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image);
/**
Encode an image into a JPEG-2000 codestream
@param j2k J2K compressor handle
@param cio Output buffer stream
@param image Image to encode
@param index Name of the index file if required, NULL otherwise
@return Returns true if successful, returns false otherwise
*/
bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __J2K_H */

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef WIN32
#include <windows.h>
#else
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/times.h>
#endif /* WIN32 */
#include "opj_includes.h"
double opj_clock() {
#ifdef WIN32
/* WIN32: use QueryPerformance (very accurate) */
LARGE_INTEGER freq , t ;
/* freq is the clock speed of the CPU */
QueryPerformanceFrequency(&freq) ;
/* cout << "freq = " << ((double) freq.QuadPart) << endl; */
/* t is the high resolution performance counter (see MSDN) */
QueryPerformanceCounter ( & t ) ;
return ( t.QuadPart /(double) freq.QuadPart ) ;
#else
/* Unix or Linux: use resource usage */
struct rusage t;
double procTime;
/* (1) Get the rusage data structure at this moment (man getrusage) */
getrusage(0,&t);
/* (2) What is the elapsed time ? - CPU time = User time + System time */
/* (2a) Get the seconds */
procTime = t.ru_utime.tv_sec + t.ru_stime.tv_sec;
/* (2b) More precisely! Get the microseconds part ! */
return ( procTime + (t.ru_utime.tv_usec + t.ru_stime.tv_usec) * 1e-6 ) ;
#endif
}
void* opj_malloc( size_t size ) {
void *memblock = malloc(size);
if(memblock) {
memset(memblock, 0, size);
}
return memblock;
}
void* opj_realloc( void *memblock, size_t size ) {
return realloc(memblock, size);
}
void opj_free( void *memblock ) {
free(memblock);
}

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __J2K_LIB_H
#define __J2K_LIB_H
/**
@file j2k_lib.h
@brief Internal functions
The functions in J2K_LIB.C are internal utilities mainly used for memory management.
*/
/** @defgroup MISC MISC - Miscellaneous internal functions */
/*@{*/
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Difference in successive opj_clock() calls tells you the elapsed time
@return Returns time in seconds
*/
double opj_clock();
/**
Allocate a memory block with elements initialized to 0
@param size Bytes to allocate
@return Returns a void pointer to the allocated space, or NULL if there is insufficient memory available
*/
void* opj_malloc( size_t size );
/**
Reallocate memory blocks.
@param memblock Pointer to previously allocated memory block
@param size New size in bytes
@return Returns a void pointer to the reallocated (and possibly moved) memory block
*/
void* opj_realloc( void *memblock, size_t size );
/**
Deallocates or frees a memory block.
@param memblock Previously allocated memory block to be freed
*/
void opj_free( void *memblock );
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __J2K_LIB_H */

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/*
* Copyright (c) 2004, Yannick Verschueren
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Read box headers
@param cinfo Codec context info
@param cio Input stream
@param box
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box);
/*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
/**
Read the IHDR box - Image Header box
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio);
static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Write the JP2H box - JP2 Header box
@param jp2 JP2 handle
@param cio Output buffer stream
*/
static void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Read the JP2H box - JP2 Header box
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Write the FTYP box - File type box
@param jp2 JP2 handle
@param cio Output buffer stream
*/
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Read the FTYP box - File type box
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index);
static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset);
static void jp2_write_jp(opj_cio_t *cio);
/**
Read the JP box - JPEG 2000 signature
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Decode the structure of a JP2 file
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio);
/*@}*/
/*@}*/
/* ----------------------------------------------------------------------- */
static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box) {
box->init_pos = cio_tell(cio);
box->length = cio_read(cio, 4);
box->type = cio_read(cio, 4);
if (box->length == 1) {
if (cio_read(cio, 4) != 0) {
opj_event_msg(cinfo, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
return false;
}
box->length = cio_read(cio, 4);
if (box->length == 0)
box->length = cio_numbytesleft(cio) + 12;
}
else if (box->length == 0) {
box->length = cio_numbytesleft(cio) + 8;
}
return true;
}
#if 0
static void jp2_write_url(opj_cio_t *cio, char *Idx_file) {
unsigned int i;
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_URL, 4); /* DBTL */
cio_write(cio, 0, 1); /* VERS */
cio_write(cio, 0, 3); /* FLAG */
if(Idx_file) {
for (i = 0; i < strlen(Idx_file); i++) {
cio_write(cio, Idx_file[i], 1);
}
}
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
#endif
static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
if (JP2_IHDR != box.type) {
opj_event_msg(cinfo, EVT_ERROR, "Expected IHDR Marker\n");
return false;
}
jp2->h = cio_read(cio, 4); /* HEIGHT */
jp2->w = cio_read(cio, 4); /* WIDTH */
jp2->numcomps = cio_read(cio, 2); /* NC */
jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
jp2->bpc = cio_read(cio, 1); /* BPC */
jp2->C = cio_read(cio, 1); /* C */
jp2->UnkC = cio_read(cio, 1); /* UnkC */
jp2->IPR = cio_read(cio, 1); /* IPR */
if (cio_tell(cio) - box.init_pos != box.length) {
opj_event_msg(cinfo, EVT_ERROR, "Error with IHDR Box\n");
return false;
}
return true;
}
static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_IHDR, 4); /* IHDR */
cio_write(cio, jp2->h, 4); /* HEIGHT */
cio_write(cio, jp2->w, 4); /* WIDTH */
cio_write(cio, jp2->numcomps, 2); /* NC */
cio_write(cio, jp2->bpc, 1); /* BPC */
cio_write(cio, jp2->C, 1); /* C : Always 7 */
cio_write(cio, jp2->UnkC, 1); /* UnkC, colorspace unknown */
cio_write(cio, jp2->IPR, 1); /* IPR, no intellectual property */
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
unsigned int i;
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_BPCC, 4); /* BPCC */
for (i = 0; i < jp2->numcomps; i++) {
cio_write(cio, jp2->comps[i].bpcc, 1);
}
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
unsigned int i;
opj_jp2_box_t box;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
if (JP2_BPCC != box.type) {
opj_event_msg(cinfo, EVT_ERROR, "Expected BPCC Marker\n");
return false;
}
for (i = 0; i < jp2->numcomps; i++) {
jp2->comps[i].bpcc = cio_read(cio, 1);
}
if (cio_tell(cio) - box.init_pos != box.length) {
opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n");
return false;
}
return true;
}
static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_COLR, 4); /* COLR */
cio_write(cio, jp2->meth, 1); /* METH */
cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */
cio_write(cio, jp2->approx, 1); /* APPROX */
if (jp2->meth == 1) {
cio_write(cio, jp2->enumcs, 4); /* EnumCS */
} else {
cio_write(cio, 0, 1); /* PROFILE (??) */
}
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
int skip_len;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
do {
if (JP2_COLR != box.type) {
cio_skip(cio, box.length - 8);
jp2_read_boxhdr(cinfo, cio, &box);
}
} while(JP2_COLR != box.type);
jp2->meth = cio_read(cio, 1); /* METH */
jp2->precedence = cio_read(cio, 1); /* PRECEDENCE */
jp2->approx = cio_read(cio, 1); /* APPROX */
if (jp2->meth == 1) {
jp2->enumcs = cio_read(cio, 4); /* EnumCS */
} else {
/* skip PROFILE */
skip_len = box.init_pos + box.length - cio_tell(cio);
if (skip_len < 0) {
opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H box size\n");
return false;
}
cio_skip(cio, box.init_pos + box.length - cio_tell(cio));
}
if (cio_tell(cio) - box.init_pos != box.length) {
opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n");
return false;
}
return true;
}
static void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_JP2H, 4); /* JP2H */
jp2_write_ihdr(jp2, cio);
if (jp2->bpc == 255) {
jp2_write_bpcc(jp2, cio);
}
jp2_write_colr(jp2, cio);
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
int skip_len;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
do {
if (JP2_JP2H != box.type) {
if (box.type == JP2_JP2C) {
opj_event_msg(cinfo, EVT_ERROR, "Expected JP2H Marker\n");
return false;
}
cio_skip(cio, box.length - 8);
jp2_read_boxhdr(cinfo, cio, &box);
}
} while(JP2_JP2H != box.type);
if (!jp2_read_ihdr(jp2, cio))
return false;
if (jp2->bpc == 255) {
if (!jp2_read_bpcc(jp2, cio))
return false;
}
if (!jp2_read_colr(jp2, cio))
return false;
skip_len = box.init_pos + box.length - cio_tell(cio);
if (skip_len < 0) {
opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H Box\n");
return false;
}
cio_skip(cio, box.init_pos + box.length - cio_tell(cio));
return true;
}
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
unsigned int i;
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_FTYP, 4); /* FTYP */
cio_write(cio, jp2->brand, 4); /* BR */
cio_write(cio, jp2->minversion, 4); /* MinV */
for (i = 0; i < jp2->numcl; i++) {
cio_write(cio, jp2->cl[i], 4); /* CL */
}
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
int i;
opj_jp2_box_t box;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
if (JP2_FTYP != box.type) {
opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n");
return false;
}
jp2->brand = cio_read(cio, 4); /* BR */
jp2->minversion = cio_read(cio, 4); /* MinV */
jp2->numcl = (box.length - 16) / 4;
jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
for (i = 0; i < (int)jp2->numcl; i++) {
jp2->cl[i] = cio_read(cio, 4); /* CLi */
}
if (cio_tell(cio) - box.init_pos != box.length) {
opj_event_msg(cinfo, EVT_ERROR, "Error with FTYP Box\n");
return false;
}
return true;
}
static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index) {
unsigned int j2k_codestream_offset, j2k_codestream_length;
opj_jp2_box_t box;
opj_j2k_t *j2k = jp2->j2k;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_JP2C, 4); /* JP2C */
/* J2K encoding */
j2k_codestream_offset = cio_tell(cio);
if(!j2k_encode(j2k, cio, image, index)) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "Failed to encode image\n");
return 0;
}
j2k_codestream_length = cio_tell(cio) - j2k_codestream_offset;
jp2->j2k_codestream_offset = j2k_codestream_offset;
jp2->j2k_codestream_length = j2k_codestream_length;
box.length = 8 + jp2->j2k_codestream_length;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
return box.length;
}
static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) {
opj_jp2_box_t box;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
do {
if(JP2_JP2C != box.type) {
cio_skip(cio, box.length - 8);
jp2_read_boxhdr(cinfo, cio, &box);
}
} while(JP2_JP2C != box.type);
*j2k_codestream_offset = cio_tell(cio);
*j2k_codestream_length = box.length - 8;
return true;
}
static void jp2_write_jp(opj_cio_t *cio) {
opj_jp2_box_t box;
box.init_pos = cio_tell(cio);
cio_skip(cio, 4);
cio_write(cio, JP2_JP, 4); /* JP2 signature */
cio_write(cio, 0x0d0a870a, 4);
box.length = cio_tell(cio) - box.init_pos;
cio_seek(cio, box.init_pos);
cio_write(cio, box.length, 4); /* L */
cio_seek(cio, box.init_pos + box.length);
}
static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_jp2_box_t box;
opj_common_ptr cinfo = jp2->cinfo;
jp2_read_boxhdr(cinfo, cio, &box);
if (JP2_JP != box.type) {
opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n");
return false;
}
if (0x0d0a870a != cio_read(cio, 4)) {
opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n");
return false;
}
if (cio_tell(cio) - box.init_pos != box.length) {
opj_event_msg(cinfo, EVT_ERROR, "Error with JP Box size\n");
return false;
}
return true;
}
static bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio) {
if (!jp2_read_jp(jp2, cio))
return false;
if (!jp2_read_ftyp(jp2, cio))
return false;
if (!jp2_read_jp2h(jp2, cio))
return false;
if (!jp2_read_jp2c(jp2, cio, &jp2->j2k_codestream_length, &jp2->j2k_codestream_offset))
return false;
return true;
}
/* ----------------------------------------------------------------------- */
/* JP2 decoder interface */
/* ----------------------------------------------------------------------- */
opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo) {
opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
if(jp2) {
jp2->cinfo = cinfo;
/* create the J2K codec */
jp2->j2k = j2k_create_decompress(cinfo);
if(jp2->j2k == NULL) {
jp2_destroy_decompress(jp2);
return NULL;
}
}
return jp2;
}
void jp2_destroy_decompress(opj_jp2_t *jp2) {
if(jp2) {
/* destroy the J2K codec */
j2k_destroy_decompress(jp2->j2k);
if(jp2->comps) {
opj_free(jp2->comps);
}
if(jp2->cl) {
opj_free(jp2->cl);
}
opj_free(jp2);
}
}
void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters) {
/* setup the J2K codec */
j2k_setup_decoder(jp2->j2k, parameters);
/* further JP2 initializations go here */
}
opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio) {
opj_common_ptr cinfo;
opj_image_t *image = NULL;
if(!jp2 || !cio) {
return NULL;
}
cinfo = jp2->cinfo;
/* JP2 decoding */
if(!jp2_read_struct(jp2, cio)) {
opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n");
return NULL;
}
/* J2K decoding */
image = j2k_decode(jp2->j2k, cio);
if(!image) {
opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n");
}
return image;
}
/* ----------------------------------------------------------------------- */
/* JP2 encoder interface */
/* ----------------------------------------------------------------------- */
opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo) {
opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
if(jp2) {
jp2->cinfo = cinfo;
/* create the J2K codec */
jp2->j2k = j2k_create_compress(cinfo);
if(jp2->j2k == NULL) {
jp2_destroy_compress(jp2);
return NULL;
}
}
return jp2;
}
void jp2_destroy_compress(opj_jp2_t *jp2) {
if(jp2) {
/* destroy the J2K codec */
j2k_destroy_compress(jp2->j2k);
if(jp2->comps) {
opj_free(jp2->comps);
}
if(jp2->cl) {
opj_free(jp2->cl);
}
opj_free(jp2);
}
}
void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image) {
int i;
int depth_0, sign;
if(!jp2 || !parameters || !image)
return;
/* setup the J2K codec */
/* ------------------- */
j2k_setup_encoder(jp2->j2k, parameters, image);
/* setup the JP2 codec */
/* ------------------- */
/* Profile box */
jp2->brand = JP2_JP2; /* BR */
jp2->minversion = 0; /* MinV */
jp2->numcl = 1;
jp2->cl = (unsigned int*) opj_malloc(jp2->numcl * sizeof(unsigned int));
jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
/* Image Header box */
jp2->numcomps = image->numcomps; /* NC */
jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
jp2->h = image->y1 - image->y0; /* HEIGHT */
jp2->w = image->x1 - image->x0; /* WIDTH */
/* BPC */
depth_0 = image->comps[0].prec - 1;
sign = image->comps[0].sgnd;
jp2->bpc = depth_0 + (sign << 7);
for (i = 1; i < image->numcomps; i++) {
int depth = image->comps[i].prec - 1;
sign = image->comps[i].sgnd;
if (depth_0 != depth)
jp2->bpc = 255;
}
jp2->C = 7; /* C : Always 7 */
jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
jp2->IPR = 0; /* IPR, no intellectual property */
/* BitsPerComponent box */
for (i = 0; i < image->numcomps; i++) {
jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
}
/* Colour Specification box */
if ((image->numcomps == 1 || image->numcomps == 3) && (jp2->bpc != 255)) {
jp2->meth = 1; /* METH: Enumerated colourspace */
} else {
jp2->meth = 2; /* METH: Restricted ICC profile */
}
if (jp2->meth == 1) {
if (image->color_space == 1)
jp2->enumcs = 16; /* sRGB as defined by IEC 61966–2–1 */
else if (image->color_space == 2)
jp2->enumcs = 17; /* greyscale */
else if (image->color_space == 3)
jp2->enumcs = 18; /* YUV */
} else {
jp2->enumcs = 0; /* PROFILE (??) */
}
jp2->precedence = 0; /* PRECEDENCE */
jp2->approx = 0; /* APPROX */
}
bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index) {
/* JP2 encoding */
/* JPEG 2000 Signature box */
jp2_write_jp(cio);
/* File Type box */
jp2_write_ftyp(jp2, cio);
/* JP2 Header box */
jp2_write_jp2h(jp2, cio);
/* J2K encoding */
if(!jp2_write_jp2c(jp2, cio, image, index)) {
opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n");
return false;
}
return true;
}

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/*
* Copyright (c) 2004, Yannick Verschueren
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __JP2_H
#define __JP2_H
/**
@file jp2.h
@brief The JPEG-2000 file format Reader/Writer (JP2)
*/
/** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
/*@{*/
#define JPIP_JPIP 0x6a706970
#define JP2_JP 0x6a502020 /**< JPEG 2000 signature box */
#define JP2_FTYP 0x66747970 /**< File type box */
#define JP2_JP2H 0x6a703268 /**< JP2 header box */
#define JP2_IHDR 0x69686472 /**< Image header box */
#define JP2_COLR 0x636f6c72 /**< Colour specification box */
#define JP2_JP2C 0x6a703263 /**< Contiguous codestream box */
#define JP2_URL 0x75726c20 /**< URL box */
#define JP2_DBTL 0x6474626c /**< ??? */
#define JP2_BPCC 0x62706363 /**< Bits per component box */
#define JP2_JP2 0x6a703220 /**< File type fields */
/* ----------------------------------------------------------------------- */
/**
JP2 component
*/
typedef struct opj_jp2_comps {
int depth;
int sgnd;
int bpcc;
} opj_jp2_comps_t;
/**
JPEG-2000 file format reader/writer
*/
typedef struct opj_jp2 {
/** codec context */
opj_common_ptr cinfo;
/** handle to the J2K codec */
opj_j2k_t *j2k;
unsigned int w;
unsigned int h;
unsigned int numcomps;
unsigned int bpc;
unsigned int C;
unsigned int UnkC;
unsigned int IPR;
unsigned int meth;
unsigned int approx;
unsigned int enumcs;
unsigned int precedence;
unsigned int brand;
unsigned int minversion;
unsigned int numcl;
unsigned int *cl;
opj_jp2_comps_t *comps;
unsigned int j2k_codestream_offset;
unsigned int j2k_codestream_length;
} opj_jp2_t;
/**
JP2 Box
*/
typedef struct opj_jp2_box {
int length;
int type;
int init_pos;
} opj_jp2_box_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Creates a JP2 decompression structure
@param cinfo Codec context info
@return Returns a handle to a JP2 decompressor if successful, returns NULL otherwise
*/
opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo);
/**
Destroy a JP2 decompressor handle
@param jp2 JP2 decompressor handle to destroy
*/
void jp2_destroy_decompress(opj_jp2_t *jp2);
/**
Setup the decoder decoding parameters using user parameters.
Decoding parameters are returned in jp2->j2k->cp.
@param jp2 JP2 decompressor handle
@param parameters decompression parameters
*/
void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters);
/**
Decode an image from a JPEG-2000 file stream
@param jp2 JP2 decompressor handle
@param cio Input buffer stream
@return Returns a decoded image if successful, returns NULL otherwise
*/
opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Creates a JP2 compression structure
@param cinfo Codec context info
@return Returns a handle to a JP2 compressor if successful, returns NULL otherwise
*/
opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo);
/**
Destroy a JP2 compressor handle
@param jp2 JP2 compressor handle to destroy
*/
void jp2_destroy_compress(opj_jp2_t *jp2);
/**
Setup the encoder parameters using the current image and using user parameters.
Coding parameters are returned in jp2->j2k->cp.
@param jp2 JP2 compressor handle
@param parameters compression parameters
@param image input filled image
*/
void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_t *image);
/**
Encode an image into a JPEG-2000 file stream
@param jp2 JP2 compressor handle
@param cio Output buffer stream
@param image Image to encode
@param index Name of the index file if required, NULL otherwise
@return Returns true if successful, returns false otherwise
*/
bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __JP2_H */

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/*
* Copyright (c) 2004, Yannick Verschueren
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/*
* Read the information contains in VBAS [JPP/JPT stream message header]
* Store information (7 bits) in value
*
*/
unsigned int jpt_read_VBAS_info(opj_cio_t *cio, unsigned int value) {
unsigned char elmt;
elmt = cio_read(cio, 1);
while ((elmt >> 7) == 1) {
value = (value << 7);
value |= (elmt & 0x7f);
elmt = cio_read(cio, 1);
}
value = (value << 7);
value |= (elmt & 0x7f);
return value;
}
/*
* Initialize the value of the message header structure
*
*/
void jpt_init_msg_header(opj_jpt_msg_header_t * header) {
header->Id = 0; /* In-class Identifier */
header->last_byte = 0; /* Last byte information */
header->Class_Id = 0; /* Class Identifier */
header->CSn_Id = 0; /* CSn : index identifier */
header->Msg_offset = 0; /* Message offset */
header->Msg_length = 0; /* Message length */
header->Layer_nb = 0; /* Auxiliary for JPP case */
}
/*
* Re-initialize the value of the message header structure
*
* Only parameters always present in message header
*
*/
void jpt_reinit_msg_header(opj_jpt_msg_header_t * header) {
header->Id = 0; /* In-class Identifier */
header->last_byte = 0; /* Last byte information */
header->Msg_offset = 0; /* Message offset */
header->Msg_length = 0; /* Message length */
}
/*
* Read the message header for a JPP/JPT - stream
*
*/
void jpt_read_msg_header(opj_common_ptr cinfo, opj_cio_t *cio, opj_jpt_msg_header_t *header) {
unsigned char elmt, Class = 0, CSn = 0;
jpt_reinit_msg_header(header);
/* ------------- */
/* VBAS : Bin-ID */
/* ------------- */
elmt = cio_read(cio, 1);
/* See for Class and CSn */
switch ((elmt >> 5) & 0x03) {
case 0:
opj_event_msg(cinfo, EVT_ERROR, "Forbidden value encounter in message header !!\n");
break;
case 1:
Class = 0;
CSn = 0;
break;
case 2:
Class = 1;
CSn = 0;
break;
case 3:
Class = 1;
CSn = 1;
break;
default:
break;
}
/* see information on bits 'c' [p 10 : A.2.1 general, ISO/IEC FCD 15444-9] */
if (((elmt >> 4) & 0x01) == 1)
header->last_byte = 1;
/* In-class identifier */
header->Id |= (elmt & 0x0f);
if ((elmt >> 7) == 1)
header->Id = jpt_read_VBAS_info(cio, header->Id);
/* ------------ */
/* VBAS : Class */
/* ------------ */
if (Class == 1) {
header->Class_Id = 0;
header->Class_Id = jpt_read_VBAS_info(cio, header->Class_Id);
}
/* ---------- */
/* VBAS : CSn */
/* ---------- */
if (CSn == 1) {
header->CSn_Id = 0;
header->CSn_Id = jpt_read_VBAS_info(cio, header->CSn_Id);
}
/* ----------------- */
/* VBAS : Msg_offset */
/* ----------------- */
header->Msg_offset = jpt_read_VBAS_info(cio, header->Msg_offset);
/* ----------------- */
/* VBAS : Msg_length */
/* ----------------- */
header->Msg_length = jpt_read_VBAS_info(cio, header->Msg_length);
/* ---------- */
/* VBAS : Aux */
/* ---------- */
if ((header->Class_Id & 0x01) == 1) {
header->Layer_nb = 0;
header->Layer_nb = jpt_read_VBAS_info(cio, header->Layer_nb);
}
}

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/*
* Copyright (c) 2004, Yannick Verschueren
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __JPT_H
#define __JPT_H
/**
@file jpt.h
@brief JPT-stream reader (JPEG 2000, JPIP)
JPT-stream functions are implemented in J2K.C.
*/
/**
Message Header JPT stream structure
*/
typedef struct opj_jpt_msg_header {
/** In-class Identifier */
unsigned int Id;
/** Last byte information */
unsigned int last_byte;
/** Class Identifier */
unsigned int Class_Id;
/** CSn : index identifier */
unsigned int CSn_Id;
/** Message offset */
unsigned int Msg_offset;
/** Message length */
unsigned int Msg_length;
/** Auxiliary for JPP case */
unsigned int Layer_nb;
} opj_jpt_msg_header_t;
/* ----------------------------------------------------------------------- */
/**
Initialize the value of the message header structure
@param header Message header structure
*/
void jpt_init_msg_header(opj_jpt_msg_header_t * header);
/**
Read the message header for a JPP/JPT - stream
@param cinfo Codec context info
@param cio CIO handle
@param header Message header structure
*/
void jpt_read_msg_header(opj_common_ptr cinfo, opj_cio_t *cio, opj_jpt_msg_header_t *header);
#endif

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/* <summary> */
/* This table contains the norms of the basis function of the reversible MCT. */
/* </summary> */
static const double mct_norms[3] = { 1.732, .8292, .8292 };
/* <summary> */
/* This table contains the norms of the basis function of the irreversible MCT. */
/* </summary> */
static const double mct_norms_real[3] = { 1.732, 1.805, 1.573 };
/* <summary> */
/* Foward reversible MCT. */
/* </summary> */
void mct_encode(int *c0, int *c1, int *c2, int n) {
int i;
for (i = 0; i < n; i++) {
int r, g, b, y, u, v;
r = c0[i];
g = c1[i];
b = c2[i];
y = (r + (g << 1) + b) >> 2;
u = b - g;
v = r - g;
c0[i] = y;
c1[i] = u;
c2[i] = v;
}
}
/* <summary> */
/* Inverse reversible MCT. */
/* </summary> */
void mct_decode(int *c0, int *c1, int *c2, int n) {
int i;
for (i = 0; i < n; i++) {
int y, u, v, r, g, b;
y = c0[i];
u = c1[i];
v = c2[i];
g = y - ((u + v) >> 2);
r = v + g;
b = u + g;
c0[i] = r;
c1[i] = g;
c2[i] = b;
}
}
/* <summary> */
/* Get norm of basis function of reversible MCT. */
/* </summary> */
double mct_getnorm(int compno) {
return mct_norms[compno];
}
/* <summary> */
/* Foward irreversible MCT. */
/* </summary> */
void mct_encode_real(int *c0, int *c1, int *c2, int n) {
int i;
for (i = 0; i < n; i++) {
int r, g, b, y, u, v;
r = c0[i];
g = c1[i];
b = c2[i];
y = fix_mul(r, 2449) + fix_mul(g, 4809) + fix_mul(b, 934);
u = -fix_mul(r, 1382) - fix_mul(g, 2714) + fix_mul(b, 4096);
v = fix_mul(r, 4096) - fix_mul(g, 3430) - fix_mul(b, 666);
c0[i] = y;
c1[i] = u;
c2[i] = v;
}
}
/* <summary> */
/* Inverse irreversible MCT. */
/* </summary> */
void mct_decode_real(int *c0, int *c1, int *c2, int n) {
int i;
for (i = 0; i < n; i++) {
int y, u, v, r, g, b;
y = c0[i];
u = c1[i];
v = c2[i];
r = y + fix_mul(v, 11485);
g = y - fix_mul(u, 2819) - fix_mul(v, 5850);
b = y + fix_mul(u, 14516);
c0[i] = r;
c1[i] = g;
c2[i] = b;
}
}
/* <summary> */
/* Get norm of basis function of irreversible MCT. */
/* </summary> */
double mct_getnorm_real(int compno) {
return mct_norms_real[compno];
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MCT_H
#define __MCT_H
/**
@file mct.h
@brief Implementation of a multi-component transforms (MCT)
The functions in MCT.C have for goal to realize reversible and irreversible multicomponent
transform. The functions in MCT.C are used by some function in TCD.C.
*/
/** @defgroup MCT MCT - Implementation of a multi-component transform */
/*@{*/
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Apply a reversible multi-component transform to an image
@param c0 Samples for red component
@param c1 Samples for green component
@param c2 Samples blue component
@param n Number of samples for each component
*/
void mct_encode(int *c0, int *c1, int *c2, int n);
/**
Apply a reversible multi-component inverse transform to an image
@param c0 Samples for luminance component
@param c1 Samples for red chrominance component
@param c2 Samples for blue chrominance component
@param n Number of samples for each component
*/
void mct_decode(int *c0, int *c1, int *c2, int n);
/**
Get norm of the basis function used for the reversible multi-component transform
@param compno Number of the component (0->Y, 1->U, 2->V)
@return
*/
double mct_getnorm(int compno);
/**
Apply an irreversible multi-component transform to an image
@param c0 Samples for red component
@param c1 Samples for green component
@param c2 Samples blue component
@param n Number of samples for each component
*/
void mct_encode_real(int *c0, int *c1, int *c2, int n);
/**
Apply an irreversible multi-component inverse transform to an image
@param c0 Samples for luminance component
@param c1 Samples for red chrominance component
@param c2 Samples for blue chrominance component
@param n Number of samples for each component
*/
void mct_decode_real(int *c0, int *c1, int *c2, int n);
/**
Get norm of the basis function used for the irreversible multi-component transform
@param compno Number of the component (0->Y, 1->U, 2->V)
@return
*/
double mct_getnorm_real(int compno);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __MCT_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/** @defgroup MQC MQC - Implementation of an MQ-Coder */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Output a byte, doing bit-stuffing if necessary.
After a 0xff byte, the next byte must be smaller than 0x90.
@param mqc MQC handle
*/
static void mqc_byteout(opj_mqc_t *mqc);
/**
Renormalize mqc->a and mqc->c while encoding, so that mqc->a stays between 0x8000 and 0x10000
@param mqc MQC handle
*/
static void mqc_renorme(opj_mqc_t *mqc);
/**
Encode the most probable symbol
@param mqc MQC handle
*/
static void mqc_codemps(opj_mqc_t *mqc);
/**
Encode the most least symbol
@param mqc MQC handle
*/
static void mqc_codelps(opj_mqc_t *mqc);
/**
Fill mqc->c with 1's for flushing
@param mqc MQC handle
*/
static void mqc_setbits(opj_mqc_t *mqc);
/**
FIXME: documentation ???
@param mqc MQC handle
@return
*/
static int mqc_mpsexchange(opj_mqc_t *mqc);
/**
FIXME: documentation ???
@param mqc MQC handle
@return
*/
static int mqc_lpsexchange(opj_mqc_t *mqc);
/**
Input a byte
@param mqc MQC handle
*/
static void mqc_bytein(opj_mqc_t *mqc);
/**
Renormalize mqc->a and mqc->c while decoding
@param mqc MQC handle
*/
static void mqc_renormd(opj_mqc_t *mqc);
/*@}*/
/*@}*/
/* <summary> */
/* This array defines all the possible states for a context. */
/* </summary> */
static opj_mqc_state_t mqc_states[47 * 2] = {
{0x5601, 0, &mqc_states[2], &mqc_states[3]},
{0x5601, 1, &mqc_states[3], &mqc_states[2]},
{0x3401, 0, &mqc_states[4], &mqc_states[12]},
{0x3401, 1, &mqc_states[5], &mqc_states[13]},
{0x1801, 0, &mqc_states[6], &mqc_states[18]},
{0x1801, 1, &mqc_states[7], &mqc_states[19]},
{0x0ac1, 0, &mqc_states[8], &mqc_states[24]},
{0x0ac1, 1, &mqc_states[9], &mqc_states[25]},
{0x0521, 0, &mqc_states[10], &mqc_states[58]},
{0x0521, 1, &mqc_states[11], &mqc_states[59]},
{0x0221, 0, &mqc_states[76], &mqc_states[66]},
{0x0221, 1, &mqc_states[77], &mqc_states[67]},
{0x5601, 0, &mqc_states[14], &mqc_states[13]},
{0x5601, 1, &mqc_states[15], &mqc_states[12]},
{0x5401, 0, &mqc_states[16], &mqc_states[28]},
{0x5401, 1, &mqc_states[17], &mqc_states[29]},
{0x4801, 0, &mqc_states[18], &mqc_states[28]},
{0x4801, 1, &mqc_states[19], &mqc_states[29]},
{0x3801, 0, &mqc_states[20], &mqc_states[28]},
{0x3801, 1, &mqc_states[21], &mqc_states[29]},
{0x3001, 0, &mqc_states[22], &mqc_states[34]},
{0x3001, 1, &mqc_states[23], &mqc_states[35]},
{0x2401, 0, &mqc_states[24], &mqc_states[36]},
{0x2401, 1, &mqc_states[25], &mqc_states[37]},
{0x1c01, 0, &mqc_states[26], &mqc_states[40]},
{0x1c01, 1, &mqc_states[27], &mqc_states[41]},
{0x1601, 0, &mqc_states[58], &mqc_states[42]},
{0x1601, 1, &mqc_states[59], &mqc_states[43]},
{0x5601, 0, &mqc_states[30], &mqc_states[29]},
{0x5601, 1, &mqc_states[31], &mqc_states[28]},
{0x5401, 0, &mqc_states[32], &mqc_states[28]},
{0x5401, 1, &mqc_states[33], &mqc_states[29]},
{0x5101, 0, &mqc_states[34], &mqc_states[30]},
{0x5101, 1, &mqc_states[35], &mqc_states[31]},
{0x4801, 0, &mqc_states[36], &mqc_states[32]},
{0x4801, 1, &mqc_states[37], &mqc_states[33]},
{0x3801, 0, &mqc_states[38], &mqc_states[34]},
{0x3801, 1, &mqc_states[39], &mqc_states[35]},
{0x3401, 0, &mqc_states[40], &mqc_states[36]},
{0x3401, 1, &mqc_states[41], &mqc_states[37]},
{0x3001, 0, &mqc_states[42], &mqc_states[38]},
{0x3001, 1, &mqc_states[43], &mqc_states[39]},
{0x2801, 0, &mqc_states[44], &mqc_states[38]},
{0x2801, 1, &mqc_states[45], &mqc_states[39]},
{0x2401, 0, &mqc_states[46], &mqc_states[40]},
{0x2401, 1, &mqc_states[47], &mqc_states[41]},
{0x2201, 0, &mqc_states[48], &mqc_states[42]},
{0x2201, 1, &mqc_states[49], &mqc_states[43]},
{0x1c01, 0, &mqc_states[50], &mqc_states[44]},
{0x1c01, 1, &mqc_states[51], &mqc_states[45]},
{0x1801, 0, &mqc_states[52], &mqc_states[46]},
{0x1801, 1, &mqc_states[53], &mqc_states[47]},
{0x1601, 0, &mqc_states[54], &mqc_states[48]},
{0x1601, 1, &mqc_states[55], &mqc_states[49]},
{0x1401, 0, &mqc_states[56], &mqc_states[50]},
{0x1401, 1, &mqc_states[57], &mqc_states[51]},
{0x1201, 0, &mqc_states[58], &mqc_states[52]},
{0x1201, 1, &mqc_states[59], &mqc_states[53]},
{0x1101, 0, &mqc_states[60], &mqc_states[54]},
{0x1101, 1, &mqc_states[61], &mqc_states[55]},
{0x0ac1, 0, &mqc_states[62], &mqc_states[56]},
{0x0ac1, 1, &mqc_states[63], &mqc_states[57]},
{0x09c1, 0, &mqc_states[64], &mqc_states[58]},
{0x09c1, 1, &mqc_states[65], &mqc_states[59]},
{0x08a1, 0, &mqc_states[66], &mqc_states[60]},
{0x08a1, 1, &mqc_states[67], &mqc_states[61]},
{0x0521, 0, &mqc_states[68], &mqc_states[62]},
{0x0521, 1, &mqc_states[69], &mqc_states[63]},
{0x0441, 0, &mqc_states[70], &mqc_states[64]},
{0x0441, 1, &mqc_states[71], &mqc_states[65]},
{0x02a1, 0, &mqc_states[72], &mqc_states[66]},
{0x02a1, 1, &mqc_states[73], &mqc_states[67]},
{0x0221, 0, &mqc_states[74], &mqc_states[68]},
{0x0221, 1, &mqc_states[75], &mqc_states[69]},
{0x0141, 0, &mqc_states[76], &mqc_states[70]},
{0x0141, 1, &mqc_states[77], &mqc_states[71]},
{0x0111, 0, &mqc_states[78], &mqc_states[72]},
{0x0111, 1, &mqc_states[79], &mqc_states[73]},
{0x0085, 0, &mqc_states[80], &mqc_states[74]},
{0x0085, 1, &mqc_states[81], &mqc_states[75]},
{0x0049, 0, &mqc_states[82], &mqc_states[76]},
{0x0049, 1, &mqc_states[83], &mqc_states[77]},
{0x0025, 0, &mqc_states[84], &mqc_states[78]},
{0x0025, 1, &mqc_states[85], &mqc_states[79]},
{0x0015, 0, &mqc_states[86], &mqc_states[80]},
{0x0015, 1, &mqc_states[87], &mqc_states[81]},
{0x0009, 0, &mqc_states[88], &mqc_states[82]},
{0x0009, 1, &mqc_states[89], &mqc_states[83]},
{0x0005, 0, &mqc_states[90], &mqc_states[84]},
{0x0005, 1, &mqc_states[91], &mqc_states[85]},
{0x0001, 0, &mqc_states[90], &mqc_states[86]},
{0x0001, 1, &mqc_states[91], &mqc_states[87]},
{0x5601, 0, &mqc_states[92], &mqc_states[92]},
{0x5601, 1, &mqc_states[93], &mqc_states[93]},
};
/*
==========================================================
local functions
==========================================================
*/
static void mqc_byteout(opj_mqc_t *mqc) {
if (*mqc->bp == 0xff) {
mqc->bp++;
*mqc->bp = mqc->c >> 20;
mqc->c &= 0xfffff;
mqc->ct = 7;
} else {
if ((mqc->c & 0x8000000) == 0) { /* ((mqc->c&0x8000000)==0) CHANGE */
mqc->bp++;
*mqc->bp = mqc->c >> 19;
mqc->c &= 0x7ffff;
mqc->ct = 8;
} else {
(*mqc->bp)++;
if (*mqc->bp == 0xff) {
mqc->c &= 0x7ffffff;
mqc->bp++;
*mqc->bp = mqc->c >> 20;
mqc->c &= 0xfffff;
mqc->ct = 7;
} else {
mqc->bp++;
*mqc->bp = mqc->c >> 19;
mqc->c &= 0x7ffff;
mqc->ct = 8;
}
}
}
}
static void mqc_renorme(opj_mqc_t *mqc) {
do {
mqc->a <<= 1;
mqc->c <<= 1;
mqc->ct--;
if (mqc->ct == 0) {
mqc_byteout(mqc);
}
} while ((mqc->a & 0x8000) == 0);
}
static void mqc_codemps(opj_mqc_t *mqc) {
mqc->a -= (*mqc->curctx)->qeval;
if ((mqc->a & 0x8000) == 0) {
if (mqc->a < (*mqc->curctx)->qeval) {
mqc->a = (*mqc->curctx)->qeval;
} else {
mqc->c += (*mqc->curctx)->qeval;
}
*mqc->curctx = (*mqc->curctx)->nmps;
mqc_renorme(mqc);
} else {
mqc->c += (*mqc->curctx)->qeval;
}
}
static void mqc_codelps(opj_mqc_t *mqc) {
mqc->a -= (*mqc->curctx)->qeval;
if (mqc->a < (*mqc->curctx)->qeval) {
mqc->c += (*mqc->curctx)->qeval;
} else {
mqc->a = (*mqc->curctx)->qeval;
}
*mqc->curctx = (*mqc->curctx)->nlps;
mqc_renorme(mqc);
}
static void mqc_setbits(opj_mqc_t *mqc) {
unsigned int tempc = mqc->c + mqc->a;
mqc->c |= 0xffff;
if (mqc->c >= tempc) {
mqc->c -= 0x8000;
}
}
static int mqc_mpsexchange(opj_mqc_t *mqc) {
int d;
if (mqc->a < (*mqc->curctx)->qeval) {
d = 1 - (*mqc->curctx)->mps;
*mqc->curctx = (*mqc->curctx)->nlps;
} else {
d = (*mqc->curctx)->mps;
*mqc->curctx = (*mqc->curctx)->nmps;
}
return d;
}
static int mqc_lpsexchange(opj_mqc_t *mqc) {
int d;
if (mqc->a < (*mqc->curctx)->qeval) {
mqc->a = (*mqc->curctx)->qeval;
d = (*mqc->curctx)->mps;
*mqc->curctx = (*mqc->curctx)->nmps;
} else {
mqc->a = (*mqc->curctx)->qeval;
d = 1 - (*mqc->curctx)->mps;
*mqc->curctx = (*mqc->curctx)->nlps;
}
return d;
}
static void mqc_bytein(opj_mqc_t *mqc) {
if (mqc->bp != mqc->end) {
unsigned int c;
if (mqc->bp + 1 != mqc->end) {
c = *(mqc->bp + 1);
} else {
c = 0xff;
}
if (*mqc->bp == 0xff) {
if (c > 0x8f) {
mqc->c += 0xff00;
mqc->ct = 8;
} else {
mqc->bp++;
mqc->c += c << 9;
mqc->ct = 7;
}
} else {
mqc->bp++;
mqc->c += c << 8;
mqc->ct = 8;
}
} else {
mqc->c += 0xff00;
mqc->ct = 8;
}
}
static void mqc_renormd(opj_mqc_t *mqc) {
do {
if (mqc->ct == 0) {
mqc_bytein(mqc);
}
mqc->a <<= 1;
mqc->c <<= 1;
mqc->ct--;
} while (mqc->a < 0x8000);
}
/*
==========================================================
MQ-Coder interface
==========================================================
*/
opj_mqc_t* mqc_create() {
opj_mqc_t *mqc = (opj_mqc_t*)opj_malloc(sizeof(opj_mqc_t));
return mqc;
}
void mqc_destroy(opj_mqc_t *mqc) {
if(mqc) {
opj_free(mqc);
}
}
int mqc_numbytes(opj_mqc_t *mqc) {
return mqc->bp - mqc->start;
}
void mqc_init_enc(opj_mqc_t *mqc, unsigned char *bp) {
mqc_setcurctx(mqc, 0);
mqc->a = 0x8000;
mqc->c = 0;
mqc->bp = bp - 1;
mqc->ct = 12;
if (*mqc->bp == 0xff) {
mqc->ct = 13;
}
mqc->start = bp;
}
void mqc_setcurctx(opj_mqc_t *mqc, int ctxno) {
mqc->curctx = &mqc->ctxs[ctxno];
}
void mqc_encode(opj_mqc_t *mqc, int d) {
if ((*mqc->curctx)->mps == d) {
mqc_codemps(mqc);
} else {
mqc_codelps(mqc);
}
}
void mqc_flush(opj_mqc_t *mqc) {
mqc_setbits(mqc);
mqc->c <<= mqc->ct;
mqc_byteout(mqc);
mqc->c <<= mqc->ct;
mqc_byteout(mqc);
if (*mqc->bp != 0xff) {
mqc->bp++;
}
}
void mqc_bypass_init_enc(opj_mqc_t *mqc) {
mqc->c = 0;
mqc->ct = 8;
/*if (*mqc->bp == 0xff) {
mqc->ct = 7;
} */
}
void mqc_bypass_enc(opj_mqc_t *mqc, int d) {
mqc->ct--;
mqc->c = mqc->c + (d << mqc->ct);
if (mqc->ct == 0) {
mqc->bp++;
*mqc->bp = mqc->c;
mqc->ct = 8;
if (*mqc->bp == 0xff) {
mqc->ct = 7;
}
mqc->c = 0;
}
}
int mqc_bypass_flush_enc(opj_mqc_t *mqc) {
unsigned char bit_padding;
bit_padding = 0;
if (mqc->ct != 0) {
while (mqc->ct > 0) {
mqc->ct--;
mqc->c += bit_padding << mqc->ct;
bit_padding = (bit_padding + 1) & 0x01;
}
mqc->bp++;
*mqc->bp = mqc->c;
mqc->ct = 8;
mqc->c = 0;
}
return 1;
}
void mqc_reset_enc(opj_mqc_t *mqc) {
mqc_resetstates(mqc);
mqc_setstate(mqc, 18, 0, 46);
mqc_setstate(mqc, 0, 0, 3);
mqc_setstate(mqc, 1, 0, 4);
}
int mqc_restart_enc(opj_mqc_t *mqc) {
int correction = 1;
/* <flush part> */
int n = 27 - 15 - mqc->ct;
mqc->c <<= mqc->ct;
while (n > 0) {
mqc_byteout(mqc);
n -= mqc->ct;
mqc->c <<= mqc->ct;
}
mqc_byteout(mqc);
return correction;
}
void mqc_restart_init_enc(opj_mqc_t *mqc) {
/* <Re-init part> */
mqc_setcurctx(mqc, 0);
mqc->a = 0x8000;
mqc->c = 0;
mqc->ct = 12;
mqc->bp--;
if (*mqc->bp == 0xff) {
mqc->ct = 13;
}
}
void mqc_erterm_enc(opj_mqc_t *mqc) {
int k = 11 - mqc->ct + 1;
while (k > 0) {
mqc->c <<= mqc->ct;
mqc->ct = 0;
mqc_byteout(mqc);
k -= mqc->ct;
}
if (*mqc->bp != 0xff) {
mqc_byteout(mqc);
}
}
void mqc_segmark_enc(opj_mqc_t *mqc) {
int i;
mqc_setcurctx(mqc, 18);
for (i = 1; i < 5; i++) {
mqc_encode(mqc, i % 2);
}
}
void mqc_init_dec(opj_mqc_t *mqc, unsigned char *bp, int len) {
mqc_setcurctx(mqc, 0);
mqc->start = bp;
mqc->end = bp + len;
mqc->bp = bp;
if (len==0) mqc->c = 0xff << 16;
else mqc->c = *mqc->bp << 16;
mqc_bytein(mqc);
mqc->c <<= 7;
mqc->ct -= 7;
mqc->a = 0x8000;
}
int mqc_decode(opj_mqc_t *mqc) {
int d;
mqc->a -= (*mqc->curctx)->qeval;
if ((mqc->c >> 16) < (*mqc->curctx)->qeval) {
d = mqc_lpsexchange(mqc);
mqc_renormd(mqc);
} else {
mqc->c -= (*mqc->curctx)->qeval << 16;
if ((mqc->a & 0x8000) == 0) {
d = mqc_mpsexchange(mqc);
mqc_renormd(mqc);
} else {
d = (*mqc->curctx)->mps;
}
}
return d;
}
void mqc_resetstates(opj_mqc_t *mqc) {
int i;
for (i = 0; i < MQC_NUMCTXS; i++) {
mqc->ctxs[i] = mqc_states;
}
}
void mqc_setstate(opj_mqc_t *mqc, int ctxno, int msb, int prob) {
mqc->ctxs[ctxno] = &mqc_states[msb + (prob << 1)];
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MQC_H
#define __MQC_H
/**
@file mqc.h
@brief Implementation of an MQ-Coder (MQC)
The functions in MQC.C have for goal to realize the MQ-coder operations. The functions
in MQC.C are used by some function in T1.C.
*/
/** @defgroup MQC MQC - Implementation of an MQ-Coder */
/*@{*/
/**
This struct defines the state of a context.
*/
typedef struct opj_mqc_state {
/** the probability of the Least Probable Symbol (0.75->0x8000, 1.5->0xffff) */
unsigned int qeval;
/** the Most Probable Symbol (0 or 1) */
int mps;
/** next state if the next encoded symbol is the MPS */
struct opj_mqc_state *nmps;
/** next state if the next encoded symbol is the LPS */
struct opj_mqc_state *nlps;
} opj_mqc_state_t;
#define MQC_NUMCTXS 32
/**
MQ coder
*/
typedef struct opj_mqc {
unsigned int c;
unsigned int a;
unsigned int ct;
unsigned char *bp;
unsigned char *start;
unsigned char *end;
opj_mqc_state_t *ctxs[MQC_NUMCTXS];
opj_mqc_state_t **curctx;
} opj_mqc_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a new MQC handle
@return Returns a new MQC handle if successful, returns NULL otherwise
*/
opj_mqc_t* mqc_create();
/**
Destroy a previously created MQC handle
@param mqc MQC handle to destroy
*/
void mqc_destroy(opj_mqc_t *mqc);
/**
Return the number of bytes written/read since initialisation
@param mqc MQC handle
@return Returns the number of bytes already encoded
*/
int mqc_numbytes(opj_mqc_t *mqc);
/**
Reset the states of all the context of the coder/decoder
(each context is set to a state where 0 and 1 are more or less equiprobable)
@param mqc MQC handle
*/
void mqc_resetstates(opj_mqc_t *mqc);
/**
Set the state of a particular context
@param mqc MQC handle
@param ctxno Number that identifies the context
@param msb The MSB of the new state of the context
@param prob Number that identifies the probability of the symbols for the new state of the context
*/
void mqc_setstate(opj_mqc_t *mqc, int ctxno, int msb, int prob);
/**
Initialize the encoder
@param mqc MQC handle
@param bp Pointer to the start of the buffer where the bytes will be written
*/
void mqc_init_enc(opj_mqc_t *mqc, unsigned char *bp);
/**
Set the current context used for coding/decoding
@param mqc MQC handle
@param ctxno Number that identifies the context
*/
void mqc_setcurctx(opj_mqc_t *mqc, int ctxno);
/**
Encode a symbol using the MQ-coder
@param mqc MQC handle
@param d The symbol to be encoded (0 or 1)
*/
void mqc_encode(opj_mqc_t *mqc, int d);
/**
Flush the encoder, so that all remaining data is written
@param mqc MQC handle
*/
void mqc_flush(opj_mqc_t *mqc);
/**
BYPASS mode switch, initialization operation.
JPEG 2000 p 505.
<h2>Not fully implemented and tested !!</h2>
@param mqc MQC handle
*/
void mqc_bypass_init_enc(opj_mqc_t *mqc);
/**
BYPASS mode switch, coding operation.
JPEG 2000 p 505.
<h2>Not fully implemented and tested !!</h2>
@param mqc MQC handle
@param d The symbol to be encoded (0 or 1)
*/
void mqc_bypass_enc(opj_mqc_t *mqc, int d);
/**
BYPASS mode switch, flush operation
<h2>Not fully implemented and tested !!</h2>
@param mqc MQC handle
@return Returns 1 (always)
*/
int mqc_bypass_flush_enc(opj_mqc_t *mqc);
/**
RESET mode switch
@param mqc MQC handle
*/
void mqc_reset_enc(opj_mqc_t *mqc);
/**
RESTART mode switch (TERMALL)
@param mqc MQC handle
@return Returns 1 (always)
*/
int mqc_restart_enc(opj_mqc_t *mqc);
/**
RESTART mode switch (TERMALL) reinitialisation
@param mqc MQC handle
*/
void mqc_restart_init_enc(opj_mqc_t *mqc);
/**
ERTERM mode switch (PTERM)
@param mqc MQC handle
*/
void mqc_erterm_enc(opj_mqc_t *mqc);
/**
SEGMARK mode switch (SEGSYM)
@param mqc MQC handle
*/
void mqc_segmark_enc(opj_mqc_t *mqc);
/**
Initialize the decoder
@param mqc MQC handle
@param bp Pointer to the start of the buffer from which the bytes will be read
@param len Length of the input buffer
*/
void mqc_init_dec(opj_mqc_t *mqc, unsigned char *bp, int len);
/**
Decode a symbol
@param mqc MQC handle
@return Returns the decoded symbol (0 or 1)
*/
int mqc_decode(opj_mqc_t *mqc);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __MQC_H */

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef WIN32
#include <windows.h>
#endif /* WIN32 */
#include "opj_includes.h"
/* ---------------------------------------------------------------------- */
#ifdef WIN32
#ifndef OPJ_STATIC
BOOL APIENTRY
DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH :
break;
case DLL_PROCESS_DETACH :
break;
case DLL_THREAD_ATTACH :
case DLL_THREAD_DETACH :
break;
}
return TRUE;
}
#endif /* OPJ_STATIC */
#endif /* WIN32 */
/* ---------------------------------------------------------------------- */
const char* OPJ_CALLCONV opj_version() {
return OPENJPEG_VERSION;
}
opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format) {
opj_dinfo_t *dinfo = (opj_dinfo_t*)opj_malloc(sizeof(opj_dinfo_t));
if(!dinfo) return NULL;
dinfo->is_decompressor = true;
switch(format) {
case CODEC_J2K:
case CODEC_JPT:
/* get a J2K decoder handle */
dinfo->j2k_handle = (void*)j2k_create_decompress((opj_common_ptr)dinfo);
if(!dinfo->j2k_handle) {
opj_free(dinfo);
return NULL;
}
break;
case CODEC_JP2:
/* get a JP2 decoder handle */
dinfo->jp2_handle = (void*)jp2_create_decompress((opj_common_ptr)dinfo);
if(!dinfo->jp2_handle) {
opj_free(dinfo);
return NULL;
}
break;
case CODEC_UNKNOWN:
default:
opj_free(dinfo);
return NULL;
}
dinfo->codec_format = format;
return dinfo;
}
void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo) {
if(dinfo) {
/* destroy the codec */
switch(dinfo->codec_format) {
case CODEC_J2K:
case CODEC_JPT:
j2k_destroy_decompress((opj_j2k_t*)dinfo->j2k_handle);
break;
case CODEC_JP2:
jp2_destroy_decompress((opj_jp2_t*)dinfo->jp2_handle);
break;
case CODEC_UNKNOWN:
default:
break;
}
/* destroy the decompressor */
opj_free(dinfo);
}
}
void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
if(parameters) {
memset(parameters, 0, sizeof(opj_dparameters_t));
/* default decoding parameters */
parameters->cp_layer = 0;
parameters->cp_reduce = 0;
parameters->decod_format = -1;
parameters->cod_format = -1;
}
}
void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters) {
if(dinfo && parameters) {
switch(dinfo->codec_format) {
case CODEC_J2K:
case CODEC_JPT:
j2k_setup_decoder((opj_j2k_t*)dinfo->j2k_handle, parameters);
break;
case CODEC_JP2:
jp2_setup_decoder((opj_jp2_t*)dinfo->jp2_handle, parameters);
break;
case CODEC_UNKNOWN:
default:
break;
}
}
}
opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio) {
if(dinfo && cio) {
switch(dinfo->codec_format) {
case CODEC_J2K:
return j2k_decode((opj_j2k_t*)dinfo->j2k_handle, cio);
case CODEC_JPT:
return j2k_decode_jpt_stream((opj_j2k_t*)dinfo->j2k_handle, cio);
case CODEC_JP2:
return jp2_decode((opj_jp2_t*)dinfo->jp2_handle, cio);
case CODEC_UNKNOWN:
default:
break;
}
}
return NULL;
}
opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format) {
opj_cinfo_t *cinfo = (opj_cinfo_t*)opj_malloc(sizeof(opj_cinfo_t));
if(!cinfo) return NULL;
cinfo->is_decompressor = false;
switch(format) {
case CODEC_J2K:
/* get a J2K coder handle */
cinfo->j2k_handle = (void*)j2k_create_compress((opj_common_ptr)cinfo);
if(!cinfo->j2k_handle) {
opj_free(cinfo);
return NULL;
}
break;
case CODEC_JP2:
/* get a JP2 coder handle */
cinfo->jp2_handle = (void*)jp2_create_compress((opj_common_ptr)cinfo);
if(!cinfo->jp2_handle) {
opj_free(cinfo);
return NULL;
}
break;
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
opj_free(cinfo);
return NULL;
}
cinfo->codec_format = format;
return cinfo;
}
void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo) {
if(cinfo) {
/* destroy the codec */
switch(cinfo->codec_format) {
case CODEC_J2K:
j2k_destroy_decompress((opj_j2k_t*)cinfo->j2k_handle);
break;
case CODEC_JP2:
jp2_destroy_decompress((opj_jp2_t*)cinfo->jp2_handle);
break;
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
break;
}
/* destroy the decompressor */
opj_free(cinfo);
}
}
void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
if(parameters) {
memset(parameters, 0, sizeof(opj_cparameters_t));
/* default coding parameters */
parameters->numresolution = 6;
parameters->cblockw_init = 64;
parameters->cblockh_init = 64;
parameters->prog_order = LRCP;
parameters->roi_compno = -1; /* no ROI */
parameters->subsampling_dx = 1;
parameters->subsampling_dy = 1;
parameters->decod_format = -1;
parameters->cod_format = -1;
}
}
void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image) {
if(cinfo && parameters && image) {
switch(cinfo->codec_format) {
case CODEC_J2K:
j2k_setup_encoder((opj_j2k_t*)cinfo->j2k_handle, parameters, image);
break;
case CODEC_JP2:
jp2_setup_encoder((opj_jp2_t*)cinfo->jp2_handle, parameters, image);
break;
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
break;
}
}
}
bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index) {
if(cinfo && cio && image) {
switch(cinfo->codec_format) {
case CODEC_J2K:
return j2k_encode((opj_j2k_t*)cinfo->j2k_handle, cio, image, index);
case CODEC_JP2:
return jp2_encode((opj_jp2_t*)cinfo->jp2_handle, cio, image, index);
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
break;
}
}
return false;
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef OPENJPEG_H
#define OPENJPEG_H
#define OPENJPEG_VERSION "1.0.0"
/*
==========================================================
Compiler directives
==========================================================
*/
#if defined(OPJ_STATIC) || !(defined(WIN32) || defined(__WIN32__))
#define OPJ_API
#define OPJ_CALLCONV
#else
#define OPJ_CALLCONV __stdcall
/*
The following ifdef block is the standard way of creating macros which make exporting
from a DLL simpler. All files within this DLL are compiled with the OPJ_EXPORTS
symbol defined on the command line. this symbol should not be defined on any project
that uses this DLL. This way any other project whose source files include this file see
OPJ_API functions as being imported from a DLL, wheras this DLL sees symbols
defined with this macro as being exported.
*/
#ifdef OPJ_EXPORTS
#define OPJ_API __declspec(dllexport)
#else
#define OPJ_API __declspec(dllimport)
#endif /* OPJ_EXPORTS */
#endif /* !OPJ_STATIC || !WIN32 */
#ifndef __cplusplus
#if defined(HAVE_STDBOOL_H)
/*
The C language implementation does correctly provide the standard header
file "stdbool.h".
*/
#include <stdbool.h>
#else
/*
The C language implementation does not provide the standard header file
"stdbool.h" as required by ISO/IEC 9899:1999. Try to compensate for this
braindamage below.
*/
#if !defined(bool)
#define bool int
#endif
#if !defined(true)
#define true 1
#endif
#if !defined(false)
#define false 0
#endif
#endif
#endif /* __cplusplus */
/*
==========================================================
Useful constant definitions
==========================================================
*/
#ifndef MAX_PATH
#define MAX_PATH 260 /**< Maximum allowed size for filenames */
#endif /* MAX_PATH */
#define J2K_MAXRLVLS 33 /**< Number of maximum resolution level authorized */
#define J2K_MAXBANDS (3*J2K_MAXRLVLS-2) /**< Number of maximum sub-band linked to number of resolution level */
/*
==========================================================
enum definitions
==========================================================
*/
/** Progression order */
typedef enum PROG_ORDER {
PROG_UNKNOWN = -1, /**< place-holder */
LRCP = 0, /**< layer-resolution-component-precinct order */
RLCP = 1, /**< resolution-layer-component-precinct order */
RPCL = 2, /**< resolution-precinct-component-layer order */
PCRL = 3, /**< precinct-component-resolution-layer order */
CPRL = 4 /**< component-precinct-resolution-layer order */
} OPJ_PROG_ORDER;
/**
Supported image color spaces
*/
typedef enum COLOR_SPACE {
CLRSPC_UNKNOWN = -1, /**< place-holder */
CLRSPC_SRGB = 1, /**< sRGB */
CLRSPC_GRAY = 2, /**< grayscale */
CLRSPC_SYCC = 3 /**< YUV */
} OPJ_COLOR_SPACE;
/**
Supported codec
*/
typedef enum CODEC_FORMAT {
CODEC_UNKNOWN = -1, /**< place-holder */
CODEC_J2K = 0, /**< JPEG-2000 codestream : read/write */
CODEC_JPT = 1, /**< JPT-stream (JPEG 2000, JPIP) : read only */
CODEC_JP2 = 2 /**< JPEG-2000 file format : read/write */
} OPJ_CODEC_FORMAT;
/*
==========================================================
event manager typedef definitions
==========================================================
*/
/**
Callback function prototype for events
@param msg Event message
@param client_data
*/
typedef void (*opj_msg_callback) (const char *msg, void *client_data);
/**
Message handler object
used for
<ul>
<li>Error messages
<li>Warning messages
<li>Debugging messages
</ul>
*/
typedef struct opj_event_mgr {
/** Error message callback if available, NULL otherwise */
opj_msg_callback error_handler;
/** Warning message callback if available, NULL otherwise */
opj_msg_callback warning_handler;
/** Debug message callback if available, NULL otherwise */
opj_msg_callback info_handler;
} opj_event_mgr_t;
/*
==========================================================
codec typedef definitions
==========================================================
*/
/**
Progression order changes
*/
typedef struct opj_poc {
int resno0, compno0;
int layno1, resno1, compno1;
OPJ_PROG_ORDER prg;
int tile;
char progorder[4];
} opj_poc_t;
/**
Compression parameters
*/
typedef struct opj_cparameters {
/** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
bool tile_size_on;
/** XTOsiz */
int cp_tx0;
/** YTOsiz */
int cp_ty0;
/** XTsiz */
int cp_tdx;
/** YTsiz */
int cp_tdy;
/** allocation by rate/distortion */
int cp_disto_alloc;
/** allocation by fixed layer */
int cp_fixed_alloc;
/** add fixed_quality */
int cp_fixed_quality;
/** fixed layer */
int *cp_matrice;
/** comment for coding */
char *cp_comment;
/** csty : coding style */
int csty;
/** progression order (default LRCP) */
OPJ_PROG_ORDER prog_order;
/** progression order changes */
opj_poc_t POC[32];
/** number of progression order changes (POC), default to 0 */
int numpocs;
/** number of layers */
int tcp_numlayers;
/** rates of layers */
float tcp_rates[100];
/** different psnr for successive layers */
float tcp_distoratio[100];
/** number of resolutions */
int numresolution;
/** initial code block width, default to 64 */
int cblockw_init;
/** initial code block height, default to 64 */
int cblockh_init;
/** mode switch (cblk_style) */
int mode;
/** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
int irreversible;
/** region of interest: affected component in [0..3], -1 means no ROI */
int roi_compno;
/** region of interest: upshift value */
int roi_shift;
/* number of precinct size specifications */
int res_spec;
/** initial precinct width */
int prcw_init[J2K_MAXRLVLS];
/** initial precinct height */
int prch_init[J2K_MAXRLVLS];
/**@name command line encoder parameters (not used inside the library) */
/*@{*/
/** input file name */
char infile[MAX_PATH];
/** output file name */
char outfile[MAX_PATH];
/** creation of an index file, default to 0 (false) */
int index_on;
/** index file name */
char index[MAX_PATH];
/** subimage encoding: origin image offset in x direction */
int image_offset_x0;
/** subimage encoding: origin image offset in y direction */
int image_offset_y0;
/** subsampling value for dx */
int subsampling_dx;
/** subsampling value for dy */
int subsampling_dy;
/** input file format 0: PGX, 1: PxM, 2: BMP */
int decod_format;
/** output file format 0: J2K, 1: JP2, 2: JPT */
int cod_format;
/*@}*/
} opj_cparameters_t;
/**
Decompression parameters
*/
typedef struct opj_dparameters {
/**
Set the number of highest resolution levels to be discarded.
The image resolution is effectively divided by 2 to the power of the number of discarded levels.
The reduce factor is limited by the smallest total number of decomposition levels among tiles.
if != 0, then original dimension divided by 2^(reduce);
if == 0 or not used, image is decoded to the full resolution
*/
int cp_reduce;
/**
Set the maximum number of quality layers to decode.
If there are less quality layers than the specified number, all the quality layers are decoded.
if != 0, then only the first "layer" layers are decoded;
if == 0 or not used, all the quality layers are decoded
*/
int cp_layer;
/**@name command line encoder parameters (not used inside the library) */
/*@{*/
/** input file name */
char infile[MAX_PATH];
/** output file name */
char outfile[MAX_PATH];
/** input file format 0: J2K, 1: JP2, 2: JPT */
int decod_format;
/** output file format 0: PGX, 1: PxM, 2: BMP */
int cod_format;
/*@}*/
} opj_dparameters_t;
/** Common fields between JPEG-2000 compression and decompression master structs. */
#define opj_common_fields \
opj_event_mgr_t *event_mgr; /**< pointer to the event manager */\
void * client_data; /**< Available for use by application */\
bool is_decompressor; /**< So common code can tell which is which */\
OPJ_CODEC_FORMAT codec_format; /**< selected codec */\
void *j2k_handle; /**< pointer to the J2K codec */\
void *jp2_handle /**< pointer to the JP2 codec */
/* Routines that are to be used by both halves of the library are declared
* to receive a pointer to this structure. There are no actual instances of
* opj_common_struct_t, only of opj_cinfo_t and opj_dinfo_t.
*/
typedef struct opj_common_struct {
opj_common_fields; /* Fields common to both master struct types */
/* Additional fields follow in an actual opj_cinfo_t or
* opj_dinfo_t. All three structs must agree on these
* initial fields! (This would be a lot cleaner in C++.)
*/
} opj_common_struct_t;
typedef opj_common_struct_t * opj_common_ptr;
/**
Compression context info
*/
typedef struct opj_cinfo {
/** Fields shared with opj_dinfo_t */
opj_common_fields;
/* other specific fields go here */
} opj_cinfo_t;
/**
Decompression context info
*/
typedef struct opj_dinfo {
/** Fields shared with opj_cinfo_t */
opj_common_fields;
/* other specific fields go here */
} opj_dinfo_t;
/*
==========================================================
I/O stream typedef definitions
==========================================================
*/
/*
* Stream open flags.
*/
/** The stream was opened for reading. */
#define OPJ_STREAM_READ 0x0001
/** The stream was opened for writing. */
#define OPJ_STREAM_WRITE 0x0002
/**
Byte input-output stream (CIO)
*/
typedef struct opj_cio {
/** codec context */
opj_common_ptr cinfo;
/** open mode (read/write) either OPJ_STREAM_READ or OPJ_STREAM_WRITE */
int openmode;
/** pointer to the start of the buffer */
unsigned char *buffer;
/** buffer size in bytes */
int length;
/** pointer to the start of the stream */
unsigned char *start;
/** pointer to the end of the stream */
unsigned char *end;
/** pointer to the current position */
unsigned char *bp;
} opj_cio_t;
/*
==========================================================
image typedef definitions
==========================================================
*/
/**
Defines a single image component
*/
typedef struct opj_image_comp {
/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
int dx;
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
int dy;
/** data width */
int w;
/** data height */
int h;
/** x component offset compared to the whole image */
int x0;
/** y component offset compared to the whole image */
int y0;
/** precision */
int prec;
/** image depth in bits */
int bpp;
/** signed (1) / unsigned (0) */
int sgnd;
/** number of decoded resolution */
int resno_decoded;
/** number of division by 2 of the out image compared to the original size of image */
int factor;
/** image component data */
int *data;
} opj_image_comp_t;
/**
Defines image data and characteristics
*/
typedef struct opj_image {
/** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
int x0;
/** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
int y0;
/** Xsiz: width of the reference grid */
int x1;
/** Ysiz: height of the reference grid */
int y1;
/** number of components in the image */
int numcomps;
/** color space: sRGB, Greyscale or YUV */
OPJ_COLOR_SPACE color_space;
/** image components */
opj_image_comp_t *comps;
} opj_image_t;
/**
Component parameters structure used by the opj_image_create function
*/
typedef struct opj_image_comptparm {
/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
int dx;
/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
int dy;
/** data width */
int w;
/** data height */
int h;
/** x component offset compared to the whole image */
int x0;
/** y component offset compared to the whole image */
int y0;
/** precision */
int prec;
/** image depth in bits */
int bpp;
/** signed (1) / unsigned (0) */
int sgnd;
} opj_image_cmptparm_t;
#ifdef __cplusplus
extern "C" {
#endif
/*
==========================================================
openjpeg version
==========================================================
*/
OPJ_API const char * OPJ_CALLCONV opj_version();
/*
==========================================================
image functions definitions
==========================================================
*/
/**
Create an image
@param numcmpts number of components
@param cmptparms components parameters
@param clrspc image color space
@return returns a new image structure if successful, returns NULL otherwise
*/
OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(int numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);
/**
Deallocate any resources associated with an image
@param image image to be destroyed
*/
OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);
/*
==========================================================
stream functions definitions
==========================================================
*/
/**
Open and allocate a memory stream for read / write.
On reading, the user must provide a buffer containing encoded data. The buffer will be
wrapped by the returned CIO handle.
On writing, buffer parameters must be set to 0: a buffer will be allocated by the library
to contain encoded data.
@param cinfo Codec context info
@param buffer Reading: buffer address. Writing: NULL
@param length Reading: buffer length. Writing: 0
@return Returns a CIO handle if successful, returns NULL otherwise
*/
OPJ_API opj_cio_t* OPJ_CALLCONV opj_cio_open(opj_common_ptr cinfo, unsigned char *buffer, int length);
/**
Close and free a CIO handle
@param cio CIO handle to free
*/
OPJ_API void OPJ_CALLCONV opj_cio_close(opj_cio_t *cio);
/**
Get position in byte stream
@param cio CIO handle
@return Returns the position in bytes
*/
OPJ_API int OPJ_CALLCONV cio_tell(opj_cio_t *cio);
/**
Set position in byte stream
@param cio CIO handle
@param pos Position, in number of bytes, from the beginning of the stream
*/
OPJ_API void OPJ_CALLCONV cio_seek(opj_cio_t *cio, int pos);
/*
==========================================================
event manager functions definitions
==========================================================
*/
OPJ_API opj_event_mgr_t* OPJ_CALLCONV opj_set_event_mgr(opj_common_ptr cinfo, opj_event_mgr_t *event_mgr, void *context);
/*
==========================================================
codec functions definitions
==========================================================
*/
/**
Creates a J2K/JPT/JP2 decompression structure
@param format Decoder to select
@return Returns a handle to a decompressor if successful, returns NULL otherwise
*/
OPJ_API opj_dinfo_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);
/**
Destroy a decompressor handle
@param dinfo decompressor handle to destroy
*/
OPJ_API void OPJ_CALLCONV opj_destroy_decompress(opj_dinfo_t *dinfo);
/**
Set decoding parameters to default values
@param parameters Decompression parameters
*/
OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);
/**
Setup the decoder decoding parameters using user parameters.
Decoding parameters are returned in j2k->cp.
@param dinfo decompressor handle
@param parameters decompression parameters
*/
OPJ_API void OPJ_CALLCONV opj_setup_decoder(opj_dinfo_t *dinfo, opj_dparameters_t *parameters);
/**
Decode an image from a JPEG-2000 codestream
@param dinfo decompressor handle
@param cio Input buffer stream
@return Returns a decoded image if successful, returns NULL otherwise
*/
OPJ_API opj_image_t* OPJ_CALLCONV opj_decode(opj_dinfo_t *dinfo, opj_cio_t *cio);
/**
Creates a J2K/JP2 compression structure
@param format Coder to select
@return Returns a handle to a compressor if successful, returns NULL otherwise
*/
OPJ_API opj_cinfo_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);
/**
Destroy a compressor handle
@param cinfo compressor handle to destroy
*/
OPJ_API void OPJ_CALLCONV opj_destroy_compress(opj_cinfo_t *cinfo);
/**
Set encoding parameters to default values, that means :
<ul>
<li>Lossless
<li>1 tile
<li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
<li>Size of code-block : 64 x 64
<li>Number of resolutions: 6
<li>No SOP marker in the codestream
<li>No EPH marker in the codestream
<li>No sub-sampling in x or y direction
<li>No mode switch activated
<li>Progression order: LRCP
<li>No index file
<li>No ROI upshifted
<li>No offset of the origin of the image
<li>No offset of the origin of the tiles
<li>Reversible DWT 5-3
</ul>
@param parameters Compression parameters
*/
OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);
/**
Setup the encoder parameters using the current image and using user parameters.
@param cinfo compressor handle
@param parameters compression parameters
@param image input filled image
*/
OPJ_API void OPJ_CALLCONV opj_setup_encoder(opj_cinfo_t *cinfo, opj_cparameters_t *parameters, opj_image_t *image);
/**
Encode an image into a JPEG-2000 codestream
@param cinfo compressor handle
@param cio Output buffer stream
@param image Image to encode
@param index Name of the index file if required, NULL otherwise
@return Returns true if successful, returns false otherwise
*/
OPJ_API bool OPJ_CALLCONV opj_encode(opj_cinfo_t *cinfo, opj_cio_t *cio, opj_image_t *image, char *index);
#ifdef __cplusplus
}
#endif
#endif /* OPENJPEG_H */

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef OPJ_INCLUDES_H
#define OPJ_INCLUDES_H
/*
==========================================================
Standard includes used by the library
==========================================================
*/
#include <memory.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <float.h>
#include <time.h>
#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
/*
==========================================================
OpenJPEG interface
==========================================================
*/
#include "openjpeg.h"
/*
==========================================================
OpenJPEG modules
==========================================================
*/
/*
The inline keyword is supported by C99 but not by C90.
Most compilers implement their own version of this keyword ...
*/
#ifndef INLINE
#if defined(_MSC_VER)
#define INLINE __inline
#elif defined(__GNUC__)
#define INLINE __inline__
#elif defined(__MWERKS__)
#define INLINE inline
#else
/* add other compilers here ... */
#define INLINE
#endif /* defined(<Compiler>) */
#endif /* INLINE */
#include "j2k_lib.h"
#include "event.h"
#include "cio.h"
#include "image.h"
#include "j2k.h"
#include "jp2.h"
#include "jpt.h"
#include "mqc.h"
#include "raw.h"
#include "bio.h"
#include "tgt.h"
#include "tcd.h"
#include "t1.h"
#include "dwt.h"
#include "pi.h"
#include "t2.h"
#include "mct.h"
#include "int.h"
#include "fix.h"
#endif /* OPJ_INCLUDES_H */

560
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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/** @defgroup PI PI - Implementation of a packet iterator */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Get next packet in layer-resolution-component-precinct order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static bool pi_next_lrcp(opj_pi_iterator_t * pi);
/**
Get next packet in resolution-layer-component-precinct order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static bool pi_next_rlcp(opj_pi_iterator_t * pi);
/**
Get next packet in resolution-precinct-component-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static bool pi_next_rpcl(opj_pi_iterator_t * pi);
/**
Get next packet in precinct-component-resolution-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static bool pi_next_pcrl(opj_pi_iterator_t * pi);
/**
Get next packet in component-precinct-resolution-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static bool pi_next_cprl(opj_pi_iterator_t * pi);
/*@}*/
/*@}*/
/*
==========================================================
local functions
==========================================================
*/
static bool pi_next_lrcp(opj_pi_iterator_t * pi) {
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
long index = 0;
if (!pi->first) {
comp = &pi->comps[pi->compno];
res = &comp->resolutions[pi->resno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1;
pi->resno++) {
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
comp = &pi->comps[pi->compno];
if (pi->resno >= comp->numresolutions) {
continue;
}
res = &comp->resolutions[pi->resno];
for (pi->precno = 0; pi->precno < res->pw * res->ph; pi->precno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
if (!pi->include[index]) {
pi->include[index] = 1;
return true;
}
LABEL_SKIP:;
}
}
}
}
return false;
}
static bool pi_next_rlcp(opj_pi_iterator_t * pi) {
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
long index = 0;
if (!pi->first) {
comp = &pi->comps[pi->compno];
res = &comp->resolutions[pi->resno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
comp = &pi->comps[pi->compno];
if (pi->resno >= comp->numresolutions) {
continue;
}
res = &comp->resolutions[pi->resno];
for (pi->precno = 0; pi->precno < res->pw * res->ph; pi->precno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
if (!pi->include[index]) {
pi->include[index] = 1;
return true;
}
LABEL_SKIP:;
}
}
}
}
return false;
}
static bool pi_next_rpcl(opj_pi_iterator_t * pi) {
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
long index = 0;
if (!pi->first) {
goto LABEL_SKIP;
} else {
int compno, resno;
pi->first = 0;
pi->dx = 0;
pi->dy = 0;
for (compno = 0; compno < pi->numcomps; compno++) {
comp = &pi->comps[compno];
for (resno = 0; resno < comp->numresolutions; resno++) {
int dx, dy;
res = &comp->resolutions[resno];
dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
}
}
}
for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
int levelno;
int trx0, try0;
int trx1, try1;
int rpx, rpy;
int prci, prcj;
comp = &pi->comps[pi->compno];
if (pi->resno >= comp->numresolutions) {
continue;
}
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
continue;
}
if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
continue;
}
if ((res->pw==0)||(res->pw==0)) continue;
if ((trx0==trx1)||(try0==try1)) continue;
prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
- int_floordivpow2(trx0, res->pdx);
prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
- int_floordivpow2(try0, res->pdy);
pi->precno = prci + prcj * res->pw;
for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
if (!pi->include[index]) {
pi->include[index] = 1;
return true;
}
LABEL_SKIP:;
}
}
}
}
}
return false;
}
static bool pi_next_pcrl(opj_pi_iterator_t * pi) {
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
long index = 0;
if (!pi->first) {
comp = &pi->comps[pi->compno];
goto LABEL_SKIP;
} else {
int compno, resno;
pi->first = 0;
pi->dx = 0;
pi->dy = 0;
for (compno = 0; compno < pi->numcomps; compno++) {
comp = &pi->comps[compno];
for (resno = 0; resno < comp->numresolutions; resno++) {
int dx, dy;
res = &comp->resolutions[resno];
dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
}
}
}
for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
comp = &pi->comps[pi->compno];
for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
int levelno;
int trx0, try0;
int trx1, try1;
int rpx, rpy;
int prci, prcj;
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
continue;
}
if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
continue;
}
if ((res->pw==0)||(res->pw==0)) continue;
if ((trx0==trx1)||(try0==try1)) continue;
prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
- int_floordivpow2(trx0, res->pdx);
prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
- int_floordivpow2(try0, res->pdy);
pi->precno = prci + prcj * res->pw;
for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
if (!pi->include[index]) {
pi->include[index] = 1;
return true;
}
LABEL_SKIP:;
}
}
}
}
}
return false;
}
static bool pi_next_cprl(opj_pi_iterator_t * pi) {
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
long index = 0;
if (!pi->first) {
comp = &pi->comps[pi->compno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
int resno;
comp = &pi->comps[pi->compno];
pi->dx = 0;
pi->dy = 0;
for (resno = 0; resno < comp->numresolutions; resno++) {
int dx, dy;
res = &comp->resolutions[resno];
dx = comp->dx * (1 << (res->pdx + comp->numresolutions - 1 - resno));
dy = comp->dy * (1 << (res->pdy + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : int_min(pi->dx, dx);
pi->dy = !pi->dy ? dy : int_min(pi->dy, dy);
}
for (pi->y = pi->ty0; pi->y < pi->ty1; pi->y += pi->dy - (pi->y % pi->dy)) {
for (pi->x = pi->tx0; pi->x < pi->tx1; pi->x += pi->dx - (pi->x % pi->dx)) {
for (pi->resno = pi->poc.resno0; pi->resno < int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
int levelno;
int trx0, try0;
int trx1, try1;
int rpx, rpy;
int prci, prcj;
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
trx0 = int_ceildiv(pi->tx0, comp->dx << levelno);
try0 = int_ceildiv(pi->ty0, comp->dy << levelno);
trx1 = int_ceildiv(pi->tx1, comp->dx << levelno);
try1 = int_ceildiv(pi->ty1, comp->dy << levelno);
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
if ((!(pi->x % (comp->dx << rpx) == 0) || (pi->x == pi->tx0 && (trx0 << levelno) % (1 << rpx)))) {
continue;
}
if ((!(pi->y % (comp->dy << rpy) == 0) || (pi->y == pi->ty0 && (try0 << levelno) % (1 << rpx)))) {
continue;
}
if ((res->pw==0)||(res->pw==0)) continue;
if ((trx0==trx1)||(try0==try1)) continue;
prci = int_floordivpow2(int_ceildiv(pi->x, comp->dx << levelno), res->pdx)
- int_floordivpow2(trx0, res->pdx);
prcj = int_floordivpow2(int_ceildiv(pi->y, comp->dy << levelno), res->pdy)
- int_floordivpow2(try0, res->pdy);
pi->precno = prci + prcj * res->pw;
for (pi->layno = 0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno * pi->step_c + pi->precno * pi->step_p;
if (!pi->include[index]) {
pi->include[index] = 1;
return true;
}
LABEL_SKIP:;
}
}
}
}
}
return false;
}
/*
==========================================================
Packet iterator interface
==========================================================
*/
opj_pi_iterator_t *pi_create(opj_image_t *image, opj_cp_t *cp, int tileno) {
int p, q;
int compno, resno, pino;
opj_pi_iterator_t *pi = NULL;
opj_tcp_t *tcp = NULL;
opj_tccp_t *tccp = NULL;
size_t array_size;
tcp = &cp->tcps[tileno];
array_size = (tcp->numpocs + 1) * sizeof(opj_pi_iterator_t);
pi = (opj_pi_iterator_t *) opj_malloc(array_size);
if(!pi) {
/* TODO: throw an error */
return NULL;
}
for (pino = 0; pino < tcp->numpocs + 1; pino++) { /* change */
int maxres = 0;
int maxprec = 0;
p = tileno % cp->tw;
q = tileno / cp->tw;
pi[pino].tx0 = int_max(cp->tx0 + p * cp->tdx, image->x0);
pi[pino].ty0 = int_max(cp->ty0 + q * cp->tdy, image->y0);
pi[pino].tx1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1);
pi[pino].ty1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1);
pi[pino].numcomps = image->numcomps;
array_size = image->numcomps * sizeof(opj_pi_comp_t);
pi[pino].comps = (opj_pi_comp_t *) opj_malloc(array_size);
if(!pi[pino].comps) {
/* TODO: throw an error */
pi_destroy(pi, cp, tileno);
return NULL;
}
memset(pi[pino].comps, 0, array_size);
for (compno = 0; compno < pi->numcomps; compno++) {
int tcx0, tcy0, tcx1, tcy1;
opj_pi_comp_t *comp = &pi[pino].comps[compno];
tccp = &tcp->tccps[compno];
comp->dx = image->comps[compno].dx;
comp->dy = image->comps[compno].dy;
comp->numresolutions = tccp->numresolutions;
array_size = comp->numresolutions * sizeof(opj_pi_resolution_t);
comp->resolutions = (opj_pi_resolution_t *) opj_malloc(array_size);
if(!comp->resolutions) {
/* TODO: throw an error */
pi_destroy(pi, cp, tileno);
return NULL;
}
tcx0 = int_ceildiv(pi->tx0, comp->dx);
tcy0 = int_ceildiv(pi->ty0, comp->dy);
tcx1 = int_ceildiv(pi->tx1, comp->dx);
tcy1 = int_ceildiv(pi->ty1, comp->dy);
if (comp->numresolutions > maxres) {
maxres = comp->numresolutions;
}
for (resno = 0; resno < comp->numresolutions; resno++) {
int levelno;
int rx0, ry0, rx1, ry1;
int px0, py0, px1, py1;
opj_pi_resolution_t *res = &comp->resolutions[resno];
if (tccp->csty & J2K_CCP_CSTY_PRT) {
res->pdx = tccp->prcw[resno];
res->pdy = tccp->prch[resno];
} else {
res->pdx = 15;
res->pdy = 15;
}
levelno = comp->numresolutions - 1 - resno;
rx0 = int_ceildivpow2(tcx0, levelno);
ry0 = int_ceildivpow2(tcy0, levelno);
rx1 = int_ceildivpow2(tcx1, levelno);
ry1 = int_ceildivpow2(tcy1, levelno);
px0 = int_floordivpow2(rx0, res->pdx) << res->pdx;
py0 = int_floordivpow2(ry0, res->pdy) << res->pdy;
px1 = int_ceildivpow2(rx1, res->pdx) << res->pdx;
py1 = int_ceildivpow2(ry1, res->pdy) << res->pdy;
res->pw = (rx0==rx1)?0:((px1 - px0) >> res->pdx);
res->ph = (ry0==ry1)?0:((py1 - py0) >> res->pdy);
if (res->pw*res->ph > maxprec) {
maxprec = res->pw*res->ph;
}
}
}
tccp = &tcp->tccps[0];
pi[pino].step_p = 1;
pi[pino].step_c = maxprec * pi[pino].step_p;
pi[pino].step_r = image->numcomps * pi[pino].step_c;
pi[pino].step_l = maxres * pi[pino].step_r;
if (pino == 0) {
array_size = image->numcomps * maxres * tcp->numlayers * maxprec * sizeof(short int);
pi[pino].include = (short int *) opj_malloc(array_size);
if(!pi[pino].include) {
/* TODO: throw an error */
pi_destroy(pi, cp, tileno);
return NULL;
}
}
else {
pi[pino].include = pi[pino - 1].include;
}
if (tcp->POC == 0) {
pi[pino].first = 1;
pi[pino].poc.resno0 = 0;
pi[pino].poc.compno0 = 0;
pi[pino].poc.layno1 = tcp->numlayers;
pi[pino].poc.resno1 = maxres;
pi[pino].poc.compno1 = image->numcomps;
pi[pino].poc.prg = tcp->prg;
} else {
pi[pino].first = 1;
pi[pino].poc.resno0 = tcp->pocs[pino].resno0;
pi[pino].poc.compno0 = tcp->pocs[pino].compno0;
pi[pino].poc.layno1 = tcp->pocs[pino].layno1;
pi[pino].poc.resno1 = tcp->pocs[pino].resno1;
pi[pino].poc.compno1 = tcp->pocs[pino].compno1;
pi[pino].poc.prg = tcp->pocs[pino].prg;
}
}
return pi;
}
void pi_destroy(opj_pi_iterator_t *pi, opj_cp_t *cp, int tileno) {
int compno, pino;
opj_tcp_t *tcp = &cp->tcps[tileno];
if(pi) {
for (pino = 0; pino < tcp->numpocs + 1; pino++) {
if(pi[pino].comps) {
for (compno = 0; compno < pi->numcomps; compno++) {
opj_pi_comp_t *comp = &pi[pino].comps[compno];
if(comp->resolutions) {
opj_free(comp->resolutions);
}
}
opj_free(pi[pino].comps);
}
}
if(pi->include) {
opj_free(pi->include);
}
opj_free(pi);
}
}
bool pi_next(opj_pi_iterator_t * pi) {
switch (pi->poc.prg) {
case LRCP:
return pi_next_lrcp(pi);
case RLCP:
return pi_next_rlcp(pi);
case RPCL:
return pi_next_rpcl(pi);
case PCRL:
return pi_next_pcrl(pi);
case CPRL:
return pi_next_cprl(pi);
case PROG_UNKNOWN:
return false;
}
return false;
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __PI_H
#define __PI_H
/**
@file pi.h
@brief Implementation of a packet iterator (PI)
The functions in PI.C have for goal to realize a packet iterator that permits to get the next
packet following the progression order and change of it. The functions in PI.C are used
by some function in T2.C.
*/
/** @defgroup PI PI - Implementation of a packet iterator */
/*@{*/
/**
FIXME: documentation
*/
typedef struct opj_pi_resolution {
int pdx, pdy;
int pw, ph;
} opj_pi_resolution_t;
/**
FIXME: documentation
*/
typedef struct opj_pi_comp {
int dx, dy;
/** number of resolution levels */
int numresolutions;
opj_pi_resolution_t *resolutions;
} opj_pi_comp_t;
/**
Packet iterator
*/
typedef struct opj_pi_iterator {
/** precise if the packet has been already used (usefull for progression order change) */
short int *include;
/** layer step used to localize the packet in the include vector */
int step_l;
/** resolution step used to localize the packet in the include vector */
int step_r;
/** component step used to localize the packet in the include vector */
int step_c;
/** precinct step used to localize the packet in the include vector */
int step_p;
/** component that identify the packet */
int compno;
/** resolution that identify the packet */
int resno;
/** precinct that identify the packet */
int precno;
/** layer that identify the packet */
int layno;
/** 0 if the first packet */
int first;
/** progression order change information */
opj_poc_t poc;
/** */
int numcomps;
/** */
opj_pi_comp_t *comps;
int tx0, ty0, tx1, ty1;
int x, y, dx, dy;
} opj_pi_iterator_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a packet iterator
@param image Raw image for which the packets will be listed
@param cp Coding parameters
@param tileno Number that identifies the tile for which to list the packets
@return Returns a packet iterator that points to the first packet of the tile
@see pi_destroy
*/
opj_pi_iterator_t *pi_create(opj_image_t * image, opj_cp_t * cp, int tileno);
/**
Destroy a packet iterator
@param pi Previously created packet iterator
@param cp Coding parameters
@param tileno Number that identifies the tile for which the packets were listed
@see pi_create
*/
void pi_destroy(opj_pi_iterator_t *pi, opj_cp_t *cp, int tileno);
/**
Modify the packet iterator to point to the next packet
@param pi Packet iterator to modify
@return Returns false if pi pointed to the last packet or else returns true
*/
bool pi_next(opj_pi_iterator_t * pi);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __PI_H */

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/*
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/*
==========================================================
local functions
==========================================================
*/
/*
==========================================================
RAW encoding interface
==========================================================
*/
opj_raw_t* raw_create() {
opj_raw_t *raw = (opj_raw_t*)opj_malloc(sizeof(opj_raw_t));
return raw;
}
void raw_destroy(opj_raw_t *raw) {
if(raw) {
opj_free(raw);
}
}
int raw_numbytes(opj_raw_t *raw) {
return raw->bp - raw->start;
}
void raw_init_dec(opj_raw_t *raw, unsigned char *bp, int len) {
raw->start = bp;
raw->lenmax = len;
raw->len = 0;
raw->c = 0;
raw->ct = 0;
}
int raw_decode(opj_raw_t *raw) {
int d;
if (raw->ct == 0) {
raw->ct = 8;
if (raw->len == raw->lenmax) {
raw->c = 0xff;
} else {
if (raw->c == 0xff) {
raw->ct = 7;
}
raw->c = *(raw->start + raw->len);
raw->len++;
}
}
raw->ct--;
d = (raw->c >> raw->ct) & 0x01;
return d;
}

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/*
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __RAW_H
#define __RAW_H
/**
@file raw.h
@brief Implementation of operations for raw encoding (RAW)
The functions in RAW.C have for goal to realize the operation of raw encoding linked
with the corresponding mode switch.
*/
/** @defgroup RAW RAW - Implementation of operations for raw encoding */
/*@{*/
/**
RAW encoding operations
*/
typedef struct opj_raw {
/** temporary buffer where bits are coded or decoded */
unsigned char c;
/** number of bits already read or free to write */
unsigned int ct;
/** maximum length to decode */
unsigned int lenmax;
/** length decoded */
unsigned int len;
/** pointer to the current position in the buffer */
unsigned char *bp;
/** pointer to the start of the buffer */
unsigned char *start;
/** pointer to the end of the buffer */
unsigned char *end;
} opj_raw_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a new RAW handle
@return Returns a new RAW handle if successful, returns NULL otherwise
*/
opj_raw_t* raw_create();
/**
Destroy a previously created RAW handle
@param raw RAW handle to destroy
*/
void raw_destroy(opj_raw_t *raw);
/**
Return the number of bytes written/read since initialisation
@param raw RAW handle to destroy
@return Returns the number of bytes already encoded
*/
int raw_numbytes(opj_raw_t *raw);
/**
Initialize the decoder
@param raw RAW handle
@param bp Pointer to the start of the buffer from which the bytes will be read
@param len Length of the input buffer
*/
void raw_init_dec(opj_raw_t *raw, unsigned char *bp, int len);
/**
Decode a symbol using raw-decoder. Cfr p.506 TAUBMAN
@param raw RAW handle
@return Returns the decoded symbol (0 or 1)
*/
int raw_decode(opj_raw_t *raw);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __RAW_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __T1_H
#define __T1_H
/**
@file t1.h
@brief Implementation of the tier-1 coding (coding of code-block coefficients) (T1)
The functions in T1.C have for goal to realize the tier-1 coding operation. The functions
in T1.C are used by some function in TCD.C.
*/
/** @defgroup T1 T1 - Implementation of the tier-1 coding */
/*@{*/
/* ----------------------------------------------------------------------- */
#define T1_NMSEDEC_BITS 7
#define T1_MAXCBLKW 1024 /**< Maximum size of code-block (width) */
#define T1_MAXCBLKH 1024 /**< Maximum size of code-block (heigth) */
#define T1_SIG_NE 0x0001 /**< Context orientation : North-East direction */
#define T1_SIG_SE 0x0002 /**< Context orientation : South-East direction */
#define T1_SIG_SW 0x0004 /**< Context orientation : South-West direction */
#define T1_SIG_NW 0x0008 /**< Context orientation : North-West direction */
#define T1_SIG_N 0x0010 /**< Context orientation : North direction */
#define T1_SIG_E 0x0020 /**< Context orientation : East direction */
#define T1_SIG_S 0x0040 /**< Context orientation : South direction */
#define T1_SIG_W 0x0080 /**< Context orientation : West direction */
#define T1_SIG_OTH (T1_SIG_N|T1_SIG_NE|T1_SIG_E|T1_SIG_SE|T1_SIG_S|T1_SIG_SW|T1_SIG_W|T1_SIG_NW)
#define T1_SIG_PRIM (T1_SIG_N|T1_SIG_E|T1_SIG_S|T1_SIG_W)
#define T1_SGN_N 0x0100
#define T1_SGN_E 0x0200
#define T1_SGN_S 0x0400
#define T1_SGN_W 0x0800
#define T1_SGN (T1_SGN_N|T1_SGN_E|T1_SGN_S|T1_SGN_W)
#define T1_SIG 0x1000
#define T1_REFINE 0x2000
#define T1_VISIT 0x4000
#define T1_NUMCTXS_AGG 1
#define T1_NUMCTXS_ZC 9
#define T1_NUMCTXS_MAG 3
#define T1_NUMCTXS_SC 5
#define T1_NUMCTXS_UNI 1
#define T1_CTXNO_AGG 0
#define T1_CTXNO_ZC (T1_CTXNO_AGG+T1_NUMCTXS_AGG)
#define T1_CTXNO_MAG (T1_CTXNO_ZC+T1_NUMCTXS_ZC)
#define T1_CTXNO_SC (T1_CTXNO_MAG+T1_NUMCTXS_MAG)
#define T1_CTXNO_UNI (T1_CTXNO_SC+T1_NUMCTXS_SC)
#define T1_NUMCTXS (T1_CTXNO_UNI+T1_NUMCTXS_UNI)
#define T1_NMSEDEC_FRACBITS (T1_NMSEDEC_BITS-1)
#define T1_TYPE_MQ 0 /**< Normal coding using entropy coder */
#define T1_TYPE_RAW 1 /**< No encoding the information is store under raw format in codestream (mode switch RAW)*/
/* ----------------------------------------------------------------------- */
/**
Tier-1 coding (coding of code-block coefficients)
*/
typedef struct opj_t1 {
/** codec context */
opj_common_ptr cinfo;
/** MQC component */
opj_mqc_t *mqc;
/** RAW component */
opj_raw_t *raw;
int lut_ctxno_zc[1024];
int lut_ctxno_sc[256];
int lut_ctxno_mag[4096];
int lut_spb[256];
int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS];
int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS];
int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS];
int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS];
int data[T1_MAXCBLKH][T1_MAXCBLKW];
int flags[T1_MAXCBLKH + 2][T1_MAXCBLKH + 2];
} opj_t1_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a new T1 handle
and initialize the look-up tables of the Tier-1 coder/decoder
@return Returns a new T1 handle if successful, returns NULL otherwise
@see t1_init_luts
*/
opj_t1_t* t1_create(opj_common_ptr cinfo);
/**
Destroy a previously created T1 handle
@param t1 T1 handle to destroy
*/
void t1_destroy(opj_t1_t *t1);
/**
Encode the code-blocks of a tile
@param t1 T1 handle
@param tile The tile to encode
@param tcp Tile coding parameters
*/
void t1_encode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp);
/**
Decode the code-blocks of a tile
@param t1 T1 handle
@param tile The tile to decode
@param tcp Tile coding parameters
*/
void t1_decode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __T1_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/** @defgroup T2 T2 - Implementation of a tier-2 coding */
/*@{*/
/** @name Local static functions */
/*@{*/
static void t2_putcommacode(opj_bio_t *bio, int n);
static int t2_getcommacode(opj_bio_t *bio);
/**
Variable length code for signalling delta Zil (truncation point)
@param bio Bit Input/Output component
@param n delta Zil
*/
static void t2_putnumpasses(opj_bio_t *bio, int n);
static int t2_getnumpasses(opj_bio_t *bio);
/**
Encode a packet of a tile to a destination buffer
@param tile Tile for which to write the packets
@param tcp Tile coding parameters
@param pi Packet identity
@param dest Destination buffer
@param len Length of the destination buffer
@param image_info Structure to create an index file
@param tileno Number of the tile encoded
@return
*/
static int t2_encode_packet(opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi, unsigned char *dest, int len, opj_image_info_t *image_info, int tileno);
/**
@param seg
@param cblksty
@param first
*/
static void t2_init_seg(opj_tcd_seg_t *seg, int cblksty, int first);
/**
Decode a packet of a tile from a source buffer
@param t2 T2 handle
@param src Source buffer
@param len Length of the source buffer
@param tile Tile for which to write the packets
@param tcp Tile coding parameters
@param pi Packet identity
@return
*/
static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi);
/*@}*/
/*@}*/
/* ----------------------------------------------------------------------- */
/* #define RESTART 0x04 */
static void t2_putcommacode(opj_bio_t *bio, int n) {
while (--n >= 0) {
bio_write(bio, 1, 1);
}
bio_write(bio, 0, 1);
}
static int t2_getcommacode(opj_bio_t *bio) {
int n;
for (n = 0; bio_read(bio, 1); n++) {
;
}
return n;
}
static void t2_putnumpasses(opj_bio_t *bio, int n) {
if (n == 1) {
bio_write(bio, 0, 1);
} else if (n == 2) {
bio_write(bio, 2, 2);
} else if (n <= 5) {
bio_write(bio, 0xc | (n - 3), 4);
} else if (n <= 36) {
bio_write(bio, 0x1e0 | (n - 6), 9);
} else if (n <= 164) {
bio_write(bio, 0xff80 | (n - 37), 16);
}
}
static int t2_getnumpasses(opj_bio_t *bio) {
int n;
if (!bio_read(bio, 1))
return 1;
if (!bio_read(bio, 1))
return 2;
if ((n = bio_read(bio, 2)) != 3)
return (3 + n);
if ((n = bio_read(bio, 5)) != 31)
return (6 + n);
return (37 + bio_read(bio, 7));
}
static int t2_encode_packet(opj_tcd_tile_t * tile, opj_tcp_t * tcp, opj_pi_iterator_t *pi, unsigned char *dest, int length, opj_image_info_t * image_info, int tileno) {
int bandno, cblkno;
unsigned char *sop = 0, *eph = 0;
unsigned char *c = dest;
int compno = pi->compno; /* component value */
int resno = pi->resno; /* resolution level value */
int precno = pi->precno; /* precinct value */
int layno = pi->layno; /* quality layer value */
opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
opj_tcd_resolution_t *res = &tilec->resolutions[resno];
opj_bio_t *bio = NULL; /* BIO component */
/* <SOP 0xff91> */
if (tcp->csty & J2K_CP_CSTY_SOP) {
sop = (unsigned char *) opj_malloc(6 * sizeof(unsigned char));
sop[0] = 255;
sop[1] = 145;
sop[2] = 0;
sop[3] = 4;
sop[4] = (image_info->num % 65536) / 256;
sop[5] = (image_info->num % 65536) % 256;
memcpy(c, sop, 6);
opj_free(sop);
c += 6;
}
/* </SOP> */
if (!layno) {
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
tgt_reset(prc->incltree);
tgt_reset(prc->imsbtree);
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
cblk->numpasses = 0;
tgt_setvalue(prc->imsbtree, cblkno, band->numbps - cblk->numbps);
}
}
}
bio = bio_create();
bio_init_enc(bio, c, length);
bio_write(bio, 1, 1); /* Empty header bit */
/* Writing Packet header */
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
opj_tcd_layer_t *layer = &cblk->layers[layno];
if (!cblk->numpasses && layer->numpasses) {
tgt_setvalue(prc->incltree, cblkno, layno);
}
}
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
opj_tcd_layer_t *layer = &cblk->layers[layno];
int increment = 0;
int nump = 0;
int len = 0, passno;
/* cblk inclusion bits */
if (!cblk->numpasses) {
tgt_encode(bio, prc->incltree, cblkno, layno + 1);
} else {
bio_write(bio, layer->numpasses != 0, 1);
}
/* if cblk not included, go to the next cblk */
if (!layer->numpasses) {
continue;
}
/* if first instance of cblk --> zero bit-planes information */
if (!cblk->numpasses) {
cblk->numlenbits = 3;
tgt_encode(bio, prc->imsbtree, cblkno, 999);
}
/* number of coding passes included */
t2_putnumpasses(bio, layer->numpasses);
/* computation of the increase of the length indicator and insertion in the header */
for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
opj_tcd_pass_t *pass = &cblk->passes[passno];
nump++;
len += pass->len;
if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
increment = int_max(increment, int_floorlog2(len) + 1 - (cblk->numlenbits + int_floorlog2(nump)));
len = 0;
nump = 0;
}
}
t2_putcommacode(bio, increment);
/* computation of the new Length indicator */
cblk->numlenbits += increment;
/* insertion of the codeword segment length */
for (passno = cblk->numpasses; passno < cblk->numpasses + layer->numpasses; passno++) {
opj_tcd_pass_t *pass = &cblk->passes[passno];
nump++;
len += pass->len;
if (pass->term || passno == (cblk->numpasses + layer->numpasses) - 1) {
bio_write(bio, len, cblk->numlenbits + int_floorlog2(nump));
len = 0;
nump = 0;
}
}
}
}
if (bio_flush(bio)) {
return -999; /* modified to eliminate longjmp !! */
}
c += bio_numbytes(bio);
bio_destroy(bio);
/* <EPH 0xff92> */
if (tcp->csty & J2K_CP_CSTY_EPH) {
eph = (unsigned char *) opj_malloc(2 * sizeof(unsigned char));
eph[0] = 255;
eph[1] = 146;
memcpy(c, eph, 2);
opj_free(eph);
c += 2;
}
/* </EPH> */
/* Writing the packet body */
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
opj_tcd_layer_t *layer = &cblk->layers[layno];
if (!layer->numpasses) {
continue;
}
if (c + layer->len > dest + length) {
return -999;
}
memcpy(c, layer->data, layer->len);
cblk->numpasses += layer->numpasses;
c += layer->len;
/* ADD for index Cfr. Marcela --> delta disto by packet */
if(image_info && image_info->index_write && image_info->index_on) {
opj_tile_info_t *info_TL = &image_info->tile[tileno];
opj_packet_info_t *info_PK = &info_TL->packet[image_info->num];
info_PK->disto += layer->disto;
if (image_info->D_max < info_PK->disto) {
image_info->D_max = info_PK->disto;
}
}
/* </ADD> */
}
}
return (c - dest);
}
static void t2_init_seg(opj_tcd_seg_t * seg, int cblksty, int first) {
seg->numpasses = 0;
seg->len = 0;
if (cblksty & J2K_CCP_CBLKSTY_TERMALL) {
seg->maxpasses = 1;
}
else if (cblksty & J2K_CCP_CBLKSTY_LAZY) {
if (first) {
seg->maxpasses = 10;
} else {
seg->maxpasses = (((seg - 1)->maxpasses == 1) || ((seg - 1)->maxpasses == 10)) ? 2 : 1;
}
} else {
seg->maxpasses = 109;
}
}
static int t2_decode_packet(opj_t2_t* t2, unsigned char *src, int len, opj_tcd_tile_t *tile, opj_tcp_t *tcp, opj_pi_iterator_t *pi) {
int bandno, cblkno;
unsigned char *c = src;
opj_cp_t *cp = t2->cp;
int compno = pi->compno; /* component value */
int resno = pi->resno; /* resolution level value */
int precno = pi->precno; /* precinct value */
int layno = pi->layno; /* quality layer value */
opj_tcd_tilecomp_t *tilec = &tile->comps[compno];
opj_tcd_resolution_t *res = &tilec->resolutions[resno];
unsigned char *hd = NULL;
int present;
opj_bio_t *bio = NULL; /* BIO component */
if (layno == 0) {
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
tgt_reset(prc->incltree);
tgt_reset(prc->imsbtree);
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
cblk->numsegs = 0;
}
}
}
/* SOP markers */
if (tcp->csty & J2K_CP_CSTY_SOP) {
if ((*c) != 0xff || (*(c + 1) != 0x91)) {
opj_event_msg(t2->cinfo, EVT_WARNING, "Expected SOP marker\n");
} else {
c += 6;
}
/** TODO : check the Nsop value */
}
/*
When the marker PPT/PPM is used the packet header are store in PPT/PPM marker
This part deal with this caracteristic
step 1: Read packet header in the saved structure
step 2: Return to codestream for decoding
*/
bio = bio_create();
if (cp->ppm == 1) { /* PPM */
hd = cp->ppm_data;
bio_init_dec(bio, hd, cp->ppm_len);
} else if (tcp->ppt == 1) { /* PPT */
hd = tcp->ppt_data;
bio_init_dec(bio, hd, tcp->ppt_len);
} else { /* Normal Case */
hd = c;
bio_init_dec(bio, hd, src+len-hd);
}
present = bio_read(bio, 1);
if (!present) {
bio_inalign(bio);
hd += bio_numbytes(bio);
bio_destroy(bio);
/* EPH markers */
if (tcp->csty & J2K_CP_CSTY_EPH) {
if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
printf("Error : expected EPH marker\n");
} else {
hd += 2;
}
}
if (cp->ppm == 1) { /* PPM case */
cp->ppm_len += cp->ppm_data-hd;
cp->ppm_data = hd;
return (c - src);
}
if (tcp->ppt == 1) { /* PPT case */
tcp->ppt_len+=tcp->ppt_data-hd;
tcp->ppt_data = hd;
return (c - src);
}
return (hd - src);
}
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
int included, increment, n;
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
opj_tcd_seg_t *seg = NULL;
/* if cblk not yet included before --> inclusion tagtree */
if (!cblk->numsegs) {
included = tgt_decode(bio, prc->incltree, cblkno, layno + 1);
/* else one bit */
} else {
included = bio_read(bio, 1);
}
/* if cblk not included */
if (!included) {
cblk->numnewpasses = 0;
continue;
}
/* if cblk not yet included --> zero-bitplane tagtree */
if (!cblk->numsegs) {
int i, numimsbs;
for (i = 0; !tgt_decode(bio, prc->imsbtree, cblkno, i); i++) {
;
}
numimsbs = i - 1;
cblk->numbps = band->numbps - numimsbs;
cblk->numlenbits = 3;
}
/* number of coding passes */
cblk->numnewpasses = t2_getnumpasses(bio);
increment = t2_getcommacode(bio);
/* length indicator increment */
cblk->numlenbits += increment;
if (!cblk->numsegs) {
seg = &cblk->segs[0];
t2_init_seg(seg, tcp->tccps[compno].cblksty, 1);
} else {
seg = &cblk->segs[cblk->numsegs - 1];
if (seg->numpasses == seg->maxpasses) {
t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
}
}
n = cblk->numnewpasses;
do {
seg->numnewpasses = int_min(seg->maxpasses - seg->numpasses, n);
seg->newlen = bio_read(bio, cblk->numlenbits + int_floorlog2(seg->numnewpasses));
n -= seg->numnewpasses;
if (n > 0) {
t2_init_seg(++seg, tcp->tccps[compno].cblksty, 0);
}
} while (n > 0);
}
}
if (bio_inalign(bio)) {
bio_destroy(bio);
return -999;
}
hd += bio_numbytes(bio);
bio_destroy(bio);
/* EPH markers */
if (tcp->csty & J2K_CP_CSTY_EPH) {
if ((*hd) != 0xff || (*(hd + 1) != 0x92)) {
opj_event_msg(t2->cinfo, EVT_ERROR, "Expected EPH marker\n");
} else {
hd += 2;
}
}
if (cp->ppm==1) {
cp->ppm_len+=cp->ppm_data-hd;
cp->ppm_data = hd;
} else if (tcp->ppt == 1) {
tcp->ppt_len+=tcp->ppt_data-hd;
tcp->ppt_data = hd;
} else {
c=hd;
}
for (bandno = 0; bandno < res->numbands; bandno++) {
opj_tcd_band_t *band = &res->bands[bandno];
opj_tcd_precinct_t *prc = &band->precincts[precno];
if ((band->x1-band->x0 == 0)||(band->y1-band->y0 == 0)) continue;
for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) {
opj_tcd_cblk_t *cblk = &prc->cblks[cblkno];
opj_tcd_seg_t *seg = NULL;
if (!cblk->numnewpasses)
continue;
if (!cblk->numsegs) {
seg = &cblk->segs[0];
cblk->numsegs++;
cblk->len = 0;
} else {
seg = &cblk->segs[cblk->numsegs - 1];
if (seg->numpasses == seg->maxpasses) {
seg++;
cblk->numsegs++;
}
}
do {
if (c + seg->newlen > src + len) {
return -999;
}
memcpy(cblk->data + cblk->len, c, seg->newlen);
if (seg->numpasses == 0) {
seg->data = cblk->data + cblk->len;
}
c += seg->newlen;
cblk->len += seg->newlen;
seg->len += seg->newlen;
seg->numpasses += seg->numnewpasses;
cblk->numnewpasses -= seg->numnewpasses;
if (cblk->numnewpasses > 0) {
seg++;
cblk->numsegs++;
}
} while (cblk->numnewpasses > 0);
}
}
return (c - src);
}
/* ----------------------------------------------------------------------- */
int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_image_info_t *image_info) {
unsigned char *c = dest;
int e = 0;
opj_pi_iterator_t *pi = NULL;
int pino;
opj_image_t *image = t2->image;
opj_cp_t *cp = t2->cp;
/* create a packet iterator */
pi = pi_create(image, cp, tileno);
if(!pi) {
/* TODO: throw an error */
return -999;
}
if(image_info) {
image_info->num = 0;
}
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
if (pi[pino].layno < maxlayers) {
e = t2_encode_packet(tile, &cp->tcps[tileno], &pi[pino], c, dest + len - c, image_info, tileno);
if (e == -999) {
break;
} else {
c += e;
}
/* INDEX >> */
if(image_info && image_info->index_on) {
if(image_info->index_write) {
opj_tile_info_t *info_TL = &image_info->tile[tileno];
opj_packet_info_t *info_PK = &info_TL->packet[image_info->num];
if (!image_info->num) {
info_PK->start_pos = info_TL->end_header + 1;
} else {
info_PK->start_pos = info_TL->packet[image_info->num - 1].end_pos + 1;
}
info_PK->end_pos = info_PK->start_pos + e - 1;
}
image_info->num++;
}
/* << INDEX */
}
}
}
/* don't forget to release pi */
pi_destroy(pi, cp, tileno);
if (e == -999) {
return e;
}
return (c - dest);
}
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile) {
unsigned char *c = src;
opj_pi_iterator_t *pi;
int pino, e = 0;
int n = 0;
opj_image_t *image = t2->image;
opj_cp_t *cp = t2->cp;
/* create a packet iterator */
pi = pi_create(image, cp, tileno);
if(!pi) {
/* TODO: throw an error */
return -999;
}
for (pino = 0; pino <= cp->tcps[tileno].numpocs; pino++) {
while (pi_next(&pi[pino])) {
if ((cp->layer==0) || (cp->layer>=((pi[pino].layno)+1))) {
e = t2_decode_packet(t2, c, src + len - c, tile, &cp->tcps[tileno], &pi[pino]);
} else {
e = 0;
}
/* progression in resolution */
image->comps[pi[pino].compno].resno_decoded =
(e > 0) ?
int_max(pi[pino].resno, image->comps[pi[pino].compno].resno_decoded)
: image->comps[pi[pino].compno].resno_decoded;
n++;
if (e == -999) { /* ADD */
break;
} else {
c += e;
}
}
}
/* don't forget to release pi */
pi_destroy(pi, cp, tileno);
if (e == -999) {
return e;
}
return (c - src);
}
/* ----------------------------------------------------------------------- */
opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp) {
/* create the tcd structure */
opj_t2_t *t2 = (opj_t2_t*)opj_malloc(sizeof(opj_t2_t));
if(!t2) return NULL;
t2->cinfo = cinfo;
t2->image = image;
t2->cp = cp;
return t2;
}
void t2_destroy(opj_t2_t *t2) {
if(t2) {
opj_free(t2);
}
}

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libopenjpeg/t2.h Normal file
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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __T2_H
#define __T2_H
/**
@file t2.h
@brief Implementation of a tier-2 coding (packetization of code-block data) (T2)
*/
/** @defgroup T2 T2 - Implementation of a tier-2 coding */
/*@{*/
/**
Tier-2 coding
*/
typedef struct opj_t2 {
/** codec context */
opj_common_ptr cinfo;
/** Encoding: pointer to the src image. Decoding: pointer to the dst image. */
opj_image_t *image;
/** pointer to the image coding parameters */
opj_cp_t *cp;
} opj_t2_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Encode the packets of a tile to a destination buffer
@param t2 T2 handle
@param tileno number of the tile encoded
@param tile the tile for which to write the packets
@param maxlayers maximum number of layers
@param dest the destination buffer
@param len the length of the destination buffer
@param image_info structure to create an index file
*/
int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_image_info_t *image_info);
/**
Decode the packets of a tile from a source buffer
@param t2 T2 handle
@param src the source buffer
@param len length of the source buffer
@param tileno number that identifies the tile for which to decode the packets
@param tile tile for which to decode the packets
*/
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile);
/**
Create a T2 handle
@param cinfo Codec context info
@param image Source or destination image
@param cp Image coding parameters
@return Returns a new T2 handle if successful, returns NULL otherwise
*/
opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp);
/**
Destroy a T2 handle
@param t2 T2 handle to destroy
*/
void t2_destroy(opj_t2_t *t2);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __T2_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TCD_H
#define __TCD_H
/**
@file tcd.h
@brief Implementation of a tile coder/decoder (TCD)
The functions in TCD.C have for goal to encode or decode each tile independently from
each other. The functions in TCD.C are used by some function in J2K.C.
*/
/** @defgroup TCD TCD - Implementation of a tile coder/decoder */
/*@{*/
/**
FIXME: documentation
*/
typedef struct opj_tcd_seg {
int numpasses;
int len;
unsigned char *data;
int maxpasses;
int numnewpasses;
int newlen;
} opj_tcd_seg_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_pass {
int rate;
double distortiondec;
int term, len;
} opj_tcd_pass_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_layer {
int numpasses; /* Number of passes in the layer */
int len; /* len of information */
double disto; /* add for index (Cfr. Marcela) */
unsigned char *data; /* data */
} opj_tcd_layer_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_cblk {
int x0, y0, x1, y1; /* dimension of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
int numbps;
int numlenbits;
int len; /* length */
int numpasses; /* number of pass already done for the code-blocks */
int numnewpasses; /* number of pass added to the code-blocks */
int numsegs; /* number of segments */
opj_tcd_seg_t segs[100]; /* segments informations */
unsigned char data[8192]; /* Data */
int numpassesinlayers; /* number of passes in the layer */
opj_tcd_layer_t layers[100]; /* layer information */
int totalpasses; /* total number of passes */
opj_tcd_pass_t passes[100]; /* information about the passes */
} opj_tcd_cblk_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_precinct {
int x0, y0, x1, y1; /* dimension of the precinct : left upper corner (x0, y0) right low corner (x1,y1) */
int cw, ch; /* number of precinct in width and heigth */
opj_tcd_cblk_t *cblks; /* code-blocks informations */
opj_tgt_tree_t *incltree; /* inclusion tree */
opj_tgt_tree_t *imsbtree; /* IMSB tree */
} opj_tcd_precinct_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_band {
int x0, y0, x1, y1; /* dimension of the subband : left upper corner (x0, y0) right low corner (x1,y1) */
int bandno;
opj_tcd_precinct_t *precincts; /* precinct information */
int numbps;
float stepsize;
} opj_tcd_band_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_resolution {
int x0, y0, x1, y1; /* dimension of the resolution level : left upper corner (x0, y0) right low corner (x1,y1) */
int pw, ph;
int numbands; /* number sub-band for the resolution level */
opj_tcd_band_t bands[3]; /* subband information */
} opj_tcd_resolution_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_tilecomp {
int x0, y0, x1, y1; /* dimension of component : left upper corner (x0, y0) right low corner (x1,y1) */
int numresolutions; /* number of resolutions level */
opj_tcd_resolution_t *resolutions; /* resolutions information */
int *data; /* data of the component */
int nbpix; /* add fixed_quality */
} opj_tcd_tilecomp_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_tile {
int x0, y0, x1, y1; /* dimension of the tile : left upper corner (x0, y0) right low corner (x1,y1) */
int numcomps; /* number of components in tile */
opj_tcd_tilecomp_t *comps; /* Components information */
int nbpix; /* add fixed_quality */
double distotile; /* add fixed_quality */
double distolayer[100]; /* add fixed_quality */
} opj_tcd_tile_t;
/**
FIXME: documentation
*/
typedef struct opj_tcd_image {
int tw, th; /* number of tiles in width and heigth */
opj_tcd_tile_t *tiles; /* Tiles information */
} opj_tcd_image_t;
/**
Tile coder/decoder
*/
typedef struct opj_tcd {
/** codec context */
opj_common_ptr cinfo;
/** info on each image tile */
opj_tcd_image_t *tcd_image;
/** image */
opj_image_t *image;
/** coding parameters */
opj_cp_t *cp;
/** pointer to the current encoded/decoded tile */
opj_tcd_tile_t *tcd_tile;
/** coding/decoding parameters common to all tiles */
opj_tcp_t *tcp;
/** current encoded/decoded tile */
int tcd_tileno;
} opj_tcd_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Dump the content of a tcd structure
*/
void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t *img);
/**
Create a new TCD handle
@param cinfo Codec context info
@return Returns a new TCD handle if successful returns NULL otherwise
*/
opj_tcd_t* tcd_create(opj_common_ptr cinfo);
/**
Destroy a previously created TCD handle
@param tcd TCD handle to destroy
*/
void tcd_destroy(opj_tcd_t *tcd);
/**
Initialize the tile coder (allocate the memory)
@param tcd TCD handle
@param image Raw image
@param cp Coding parameters
@param curtileno Number that identifies the tile that will be encoded
*/
void tcd_malloc_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno);
/**
Free the memory allocated for encoding
@param tcd TCD handle
*/
void tcd_free_encode(opj_tcd_t *tcd);
/**
Initialize the tile coder (reuses the memory allocated by tcd_malloc_encode)
@param tcd TCD handle
@param image Raw image
@param cp Coding parameters
@param curtileno Number that identifies the tile that will be encoded
*/
void tcd_init_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno);
/**
Initialize the tile decoder
@param tcd TCD handle
@param image Raw image
@param cp Coding parameters
*/
void tcd_malloc_decode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp);
void tcd_makelayer_fixed(opj_tcd_t *tcd, int layno, int final);
void tcd_rateallocate_fixed(opj_tcd_t *tcd);
void tcd_makelayer(opj_tcd_t *tcd, int layno, double thresh, int final);
bool tcd_rateallocate(opj_tcd_t *tcd, unsigned char *dest, int len, opj_image_info_t * image_info);
/**
Encode a tile from the raw image into a buffer
@param tcd TCD handle
@param tileno Number that identifies one of the tiles to be encoded
@param dest Destination buffer
@param len Length of destination buffer
@param image_info Creation of index file
@return
*/
int tcd_encode_tile(opj_tcd_t *tcd, int tileno, unsigned char *dest, int len, opj_image_info_t * image_info);
/**
Decode a tile from a buffer into a raw image
@param tcd TCD handle
@param src Source buffer
@param len Length of source buffer
@param tileno Number that identifies one of the tiles to be decoded
*/
bool tcd_decode_tile(opj_tcd_t *tcd, unsigned char *src, int len, int tileno);
/**
Free the memory allocated for decoding
@param tcd TCD handle
*/
void tcd_free_decode(opj_tcd_t *tcd);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __TCD_H */

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
/*
==========================================================
Tag-tree coder interface
==========================================================
*/
opj_tgt_tree_t *tgt_create(int numleafsh, int numleafsv) {
int nplh[32];
int nplv[32];
opj_tgt_node_t *node = NULL;
opj_tgt_node_t *parentnode = NULL;
opj_tgt_node_t *parentnode0 = NULL;
opj_tgt_tree_t *tree = NULL;
int i, j, k;
int numlvls;
int n;
tree = (opj_tgt_tree_t *) opj_malloc(sizeof(opj_tgt_tree_t));
if(!tree) return NULL;
tree->numleafsh = numleafsh;
tree->numleafsv = numleafsv;
numlvls = 0;
nplh[0] = numleafsh;
nplv[0] = numleafsv;
tree->numnodes = 0;
do {
n = nplh[numlvls] * nplv[numlvls];
nplh[numlvls + 1] = (nplh[numlvls] + 1) / 2;
nplv[numlvls + 1] = (nplv[numlvls] + 1) / 2;
tree->numnodes += n;
++numlvls;
} while (n > 1);
/* ADD */
if (tree->numnodes == 0) {
opj_free(tree);
return NULL;
}
tree->nodes = (opj_tgt_node_t *) opj_malloc(tree->numnodes * sizeof(opj_tgt_node_t));
if(!tree->nodes) {
opj_free(tree);
return NULL;
}
node = tree->nodes;
parentnode = &tree->nodes[tree->numleafsh * tree->numleafsv];
parentnode0 = parentnode;
for (i = 0; i < numlvls - 1; ++i) {
for (j = 0; j < nplv[i]; ++j) {
k = nplh[i];
while (--k >= 0) {
node->parent = parentnode;
++node;
if (--k >= 0) {
node->parent = parentnode;
++node;
}
++parentnode;
}
if ((j & 1) || j == nplv[i] - 1) {
parentnode0 = parentnode;
} else {
parentnode = parentnode0;
parentnode0 += nplh[i];
}
}
}
node->parent = 0;
tgt_reset(tree);
return tree;
}
void tgt_destroy(opj_tgt_tree_t *tree) {
opj_free(tree->nodes);
opj_free(tree);
}
void tgt_reset(opj_tgt_tree_t *tree) {
int i;
if (NULL == tree)
return;
for (i = 0; i < tree->numnodes; i++) {
tree->nodes[i].value = 999;
tree->nodes[i].low = 0;
tree->nodes[i].known = 0;
}
}
void tgt_setvalue(opj_tgt_tree_t *tree, int leafno, int value) {
opj_tgt_node_t *node;
node = &tree->nodes[leafno];
while (node && node->value > value) {
node->value = value;
node = node->parent;
}
}
void tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold) {
opj_tgt_node_t *stk[31];
opj_tgt_node_t **stkptr;
opj_tgt_node_t *node;
int low;
stkptr = stk;
node = &tree->nodes[leafno];
while (node->parent) {
*stkptr++ = node;
node = node->parent;
}
low = 0;
for (;;) {
if (low > node->low) {
node->low = low;
} else {
low = node->low;
}
while (low < threshold) {
if (low >= node->value) {
if (!node->known) {
bio_write(bio, 1, 1);
node->known = 1;
}
break;
}
bio_write(bio, 0, 1);
++low;
}
node->low = low;
if (stkptr == stk)
break;
node = *--stkptr;
}
}
int tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold) {
opj_tgt_node_t *stk[31];
opj_tgt_node_t **stkptr;
opj_tgt_node_t *node;
int low;
stkptr = stk;
node = &tree->nodes[leafno];
while (node->parent) {
*stkptr++ = node;
node = node->parent;
}
low = 0;
for (;;) {
if (low > node->low) {
node->low = low;
} else {
low = node->low;
}
while (low < threshold && low < node->value) {
if (bio_read(bio, 1)) {
node->value = low;
} else {
++low;
}
}
node->low = low;
if (stkptr == stk) {
break;
}
node = *--stkptr;
}
return (node->value < threshold) ? 1 : 0;
}

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/*
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __TGT_H
#define __TGT_H
/**
@file tgt.h
@brief Implementation of a tag-tree coder (TGT)
The functions in TGT.C have for goal to realize a tag-tree coder. The functions in TGT.C
are used by some function in T2.C.
*/
/** @defgroup TGT TGT - Implementation of a tag-tree coder */
/*@{*/
/**
Tag node
*/
typedef struct opj_tgt_node {
struct opj_tgt_node *parent;
int value;
int low;
int known;
} opj_tgt_node_t;
/**
Tag tree
*/
typedef struct opj_tgt_tree {
int numleafsh;
int numleafsv;
int numnodes;
opj_tgt_node_t *nodes;
} opj_tgt_tree_t;
/** @name Exported functions */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Create a tag-tree
@param numleafsh Width of the array of leafs of the tree
@param numleafsv Height of the array of leafs of the tree
@return Returns a new tag-tree if successful, returns NULL otherwise
*/
opj_tgt_tree_t *tgt_create(int numleafsh, int numleafsv);
/**
Destroy a tag-tree, liberating memory
@param tree Tag-tree to destroy
*/
void tgt_destroy(opj_tgt_tree_t *tree);
/**
Reset a tag-tree (set all leaves to 0)
@param tree Tag-tree to reset
*/
void tgt_reset(opj_tgt_tree_t *tree);
/**
Set the value of a leaf of a tag-tree
@param tree Tag-tree to modify
@param leafno Number that identifies the leaf to modify
@param value New value of the leaf
*/
void tgt_setvalue(opj_tgt_tree_t *tree, int leafno, int value);
/**
Encode the value of a leaf of the tag-tree up to a given threshold
@param bio Pointer to a BIO handle
@param tree Tag-tree to modify
@param leafno Number that identifies the leaf to encode
@param threshold Threshold to use when encoding value of the leaf
*/
void tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold);
/**
Decode the value of a leaf of the tag-tree up to a given threshold
@param bio Pointer to a BIO handle
@param tree Tag-tree to decode
@param leafno Number that identifies the leaf to decode
@param threshold Threshold to use when decoding value of the leaf
@return Returns 1 if the node's value < threshold, returns 0 otherwise
*/
int tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold);
/* ----------------------------------------------------------------------- */
/*@}*/
/*@}*/
#endif /* __TGT_H */