From 3e4052762f00e14a0c2349fc9da38ce990f6dd19 Mon Sep 17 00:00:00 2001 From: Francois-Olivier Devaux Date: Mon, 4 Dec 2006 14:45:47 +0000 Subject: [PATCH] made a copy --- libopenjpeg/CMakeLists.txt | 40 + libopenjpeg/bio.c | 186 ++++ libopenjpeg/bio.h | 124 +++ libopenjpeg/cio.c | 189 ++++ libopenjpeg/cio.h | 85 ++ libopenjpeg/dwt.c | 610 ++++++++++++ libopenjpeg/dwt.h | 112 +++ libopenjpeg/event.c | 181 ++++ libopenjpeg/event.h | 58 ++ libopenjpeg/fix.h | 62 ++ libopenjpeg/image.c | 87 ++ libopenjpeg/image.h | 48 + libopenjpeg/int.h | 118 +++ libopenjpeg/j2k.c | 1924 ++++++++++++++++++++++++++++++++++++ libopenjpeg/j2k.h | 429 ++++++++ libopenjpeg/j2k_lib.c | 76 ++ libopenjpeg/j2k_lib.h | 75 ++ libopenjpeg/jp2.c | 704 +++++++++++++ libopenjpeg/jp2.h | 162 +++ libopenjpeg/jpt.c | 154 +++ libopenjpeg/jpt.h | 74 ++ libopenjpeg/mct.c | 131 +++ libopenjpeg/mct.h | 97 ++ libopenjpeg/mqc.c | 541 ++++++++++ libopenjpeg/mqc.h | 196 ++++ libopenjpeg/openjpeg.c | 264 +++++ libopenjpeg/openjpeg.h | 628 ++++++++++++ libopenjpeg/opj_includes.h | 97 ++ libopenjpeg/pi.c | 560 +++++++++++ libopenjpeg/pi.h | 130 +++ libopenjpeg/raw.c | 86 ++ libopenjpeg/raw.h | 99 ++ libopenjpeg/t1.c | 1091 ++++++++++++++++++++ libopenjpeg/t1.h | 150 +++ libopenjpeg/t2.c | 672 +++++++++++++ libopenjpeg/t2.h | 99 ++ libopenjpeg/tcd.c | 1383 ++++++++++++++++++++++++++ libopenjpeg/tcd.h | 257 +++++ libopenjpeg/tgt.c | 212 ++++ libopenjpeg/tgt.h | 113 +++ 40 files changed, 12304 insertions(+) create mode 100644 libopenjpeg/CMakeLists.txt create mode 100644 libopenjpeg/bio.c create mode 100644 libopenjpeg/bio.h create mode 100644 libopenjpeg/cio.c create mode 100644 libopenjpeg/cio.h create mode 100644 libopenjpeg/dwt.c create mode 100644 libopenjpeg/dwt.h create mode 100644 libopenjpeg/event.c create mode 100644 libopenjpeg/event.h create mode 100644 libopenjpeg/fix.h create mode 100644 libopenjpeg/image.c create mode 100644 libopenjpeg/image.h create mode 100644 libopenjpeg/int.h create mode 100644 libopenjpeg/j2k.c create mode 100644 libopenjpeg/j2k.h create mode 100644 libopenjpeg/j2k_lib.c create mode 100644 libopenjpeg/j2k_lib.h create mode 100644 libopenjpeg/jp2.c create mode 100644 libopenjpeg/jp2.h create mode 100644 libopenjpeg/jpt.c create mode 100644 libopenjpeg/jpt.h create mode 100644 libopenjpeg/mct.c create mode 100644 libopenjpeg/mct.h create mode 100644 libopenjpeg/mqc.c create mode 100644 libopenjpeg/mqc.h create mode 100644 libopenjpeg/openjpeg.c create mode 100644 libopenjpeg/openjpeg.h create mode 100644 libopenjpeg/opj_includes.h create mode 100644 libopenjpeg/pi.c create mode 100644 libopenjpeg/pi.h create mode 100644 libopenjpeg/raw.c create mode 100644 libopenjpeg/raw.h create mode 100644 libopenjpeg/t1.c create mode 100644 libopenjpeg/t1.h create mode 100644 libopenjpeg/t2.c create mode 100644 libopenjpeg/t2.h create mode 100644 libopenjpeg/tcd.c create mode 100644 libopenjpeg/tcd.h create mode 100644 libopenjpeg/tgt.c create mode 100644 libopenjpeg/tgt.h diff --git a/libopenjpeg/CMakeLists.txt b/libopenjpeg/CMakeLists.txt new file mode 100644 index 00000000..ceb9029f --- /dev/null +++ b/libopenjpeg/CMakeLists.txt @@ -0,0 +1,40 @@ +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) diff --git a/libopenjpeg/bio.c b/libopenjpeg/bio.c new file mode 100644 index 00000000..3ede1110 --- /dev/null +++ b/libopenjpeg/bio.c @@ -0,0 +1,186 @@ +/* + * 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; +} diff --git a/libopenjpeg/bio.h b/libopenjpeg/bio.h new file mode 100644 index 00000000..63c96e3e --- /dev/null +++ b/libopenjpeg/bio.h @@ -0,0 +1,124 @@ +/* + * 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 */ + diff --git a/libopenjpeg/cio.c b/libopenjpeg/cio.c new file mode 100644 index 00000000..d8e0105d --- /dev/null +++ b/libopenjpeg/cio.c @@ -0,0 +1,189 @@ +/* + * 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; +} + + + diff --git a/libopenjpeg/cio.h b/libopenjpeg/cio.h new file mode 100644 index 00000000..0f4048b7 --- /dev/null +++ b/libopenjpeg/cio.h @@ -0,0 +1,85 @@ +/* + * 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 */ + diff --git a/libopenjpeg/dwt.c b/libopenjpeg/dwt.c new file mode 100644 index 00000000..88527d67 --- /dev/null +++ b/libopenjpeg/dwt.c @@ -0,0 +1,610 @@ +/* + * 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))) + +/* */ +/* This table contains the norms of the 5-3 wavelets for different bands. */ +/* */ +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} +}; + +/* */ +/* This table contains the norms of the 9-7 wavelets for different bands. */ +/* */ +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 +========================================================== +*/ + +/* */ +/* Forward lazy transform (horizontal). */ +/* */ +static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas) { + int i; + for (i=0; i */ +/* Forward lazy transform (vertical). */ +/* */ +static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas) { + int i; + for (i=0; i */ +/* Inverse lazy transform (horizontal). */ +/* */ +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++; + } +} + +/* */ +/* Inverse lazy transform (vertical). */ +/* */ +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; + } +} + + +/* */ +/* Forward 5-3 wavelet tranform in 1-D. */ +/* */ +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; + } + } +} + +/* */ +/* Inverse 5-3 wavelet tranform in 1-D. */ +/* */ +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; + } + } +} + +/* */ +/* Forward 9-7 wavelet transform in 1-D. */ +/* */ +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 */ + } + } +} + +/* */ +/* Inverse 9-7 wavelet transform in 1-D. */ +/* */ +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 +========================================================== +*/ + +/* */ +/* Forward 5-3 wavelet tranform in 2-D. */ +/* */ +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); + } +} + + +/* */ +/* Inverse 5-3 wavelet tranform in 2-D. */ +/* */ +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); + } +} + + +/* */ +/* Get gain of 5-3 wavelet transform. */ +/* */ +int dwt_getgain(int orient) { + if (orient == 0) + return 0; + if (orient == 1 || orient == 2) + return 1; + return 2; +} + +/* */ +/* Get norm of 5-3 wavelet. */ +/* */ +double dwt_getnorm(int level, int orient) { + return dwt_norms[orient][level]; +} + +/* */ +/* Forward 9-7 wavelet transform in 2-D. */ +/* */ + +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); + } +} + + +/* */ +/* Inverse 9-7 wavelet transform in 2-D. */ +/* */ +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); + } +} + + +/* */ +/* Get gain of 9-7 wavelet transform. */ +/* */ +int dwt_getgain_real(int orient) { + (void)orient; + return 0; +} + +/* */ +/* Get norm of 9-7 wavelet. */ +/* */ +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]); + } +} diff --git a/libopenjpeg/dwt.h b/libopenjpeg/dwt.h new file mode 100644 index 00000000..3ee99a37 --- /dev/null +++ b/libopenjpeg/dwt.h @@ -0,0 +1,112 @@ +/* + * 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 */ diff --git a/libopenjpeg/event.c b/libopenjpeg/event.c new file mode 100644 index 00000000..183931d1 --- /dev/null +++ b/libopenjpeg/event.c @@ -0,0 +1,181 @@ +/* + * 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; +} + diff --git a/libopenjpeg/event.h b/libopenjpeg/event.h new file mode 100644 index 00000000..11910b0e --- /dev/null +++ b/libopenjpeg/event.h @@ -0,0 +1,58 @@ +/* + * 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 */ diff --git a/libopenjpeg/fix.h b/libopenjpeg/fix.h new file mode 100644 index 00000000..85575cbc --- /dev/null +++ b/libopenjpeg/fix.h @@ -0,0 +1,62 @@ +/* + * 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 */ diff --git a/libopenjpeg/image.c b/libopenjpeg/image.c new file mode 100644 index 00000000..84664e9a --- /dev/null +++ b/libopenjpeg/image.c @@ -0,0 +1,87 @@ +/* + * 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); + } +} + diff --git a/libopenjpeg/image.h b/libopenjpeg/image.h new file mode 100644 index 00000000..b56de4ac --- /dev/null +++ b/libopenjpeg/image.h @@ -0,0 +1,48 @@ +/* + * 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 */ + diff --git a/libopenjpeg/int.h b/libopenjpeg/int.h new file mode 100644 index 00000000..d2f8edd7 --- /dev/null +++ b/libopenjpeg/int.h @@ -0,0 +1,118 @@ +/* + * 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 +
    +
  • Returns a if (min < a < max) +
  • Returns max if (a > max) +
  • Returns min if (a < min) +
+*/ +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 diff --git a/libopenjpeg/j2k.c b/libopenjpeg/j2k.c new file mode 100644 index 00000000..bbca537f --- /dev/null +++ b/libopenjpeg/j2k.c @@ -0,0 +1,1924 @@ +/* + * 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 J2K J2K - JPEG-2000 codestream reader/writer */ +/*@{*/ + +/** @name Local static functions */ +/*@{*/ + +/** +Write the SOC marker (Start Of Codestream) +@param j2k J2K handle +*/ +static void j2k_write_soc(opj_j2k_t *j2k); +/** +Read the SOC marker (Start of Codestream) +@param j2k J2K handle +*/ +static void j2k_read_soc(opj_j2k_t *j2k); +/** +Write the SIZ marker (image and tile size) +@param j2k J2K handle +*/ +static void j2k_write_siz(opj_j2k_t *j2k); +/** +Read the SIZ marker (image and tile size) +@param j2k J2K handle +*/ +static void j2k_read_siz(opj_j2k_t *j2k); +/** +Write the COM marker (comment) +@param j2k J2K handle +*/ +static void j2k_write_com(opj_j2k_t *j2k); +/** +Read the COM marker (comment) +@param j2k J2K handle +*/ +static void j2k_read_com(opj_j2k_t *j2k); +/** +Write the value concerning the specified component in the marker COD and COC +@param j2k J2K handle +@param compno Number of the component concerned by the information written +*/ +static void j2k_write_cox(opj_j2k_t *j2k, int compno); +/** +Read the value concerning the specified component in the marker COD and COC +@param j2k J2K handle +@param compno Number of the component concerned by the information read +*/ +static void j2k_read_cox(opj_j2k_t *j2k, int compno); +/** +Write the COD marker (coding style default) +@param j2k J2K handle +*/ +static void j2k_write_cod(opj_j2k_t *j2k); +/** +Read the COD marker (coding style default) +@param j2k J2K handle +*/ +static void j2k_read_cod(opj_j2k_t *j2k); +/** +Write the COC marker (coding style component) +@param j2k J2K handle +@param compno Number of the component concerned by the information written +*/ +static void j2k_write_coc(opj_j2k_t *j2k, int compno); +/** +Read the COC marker (coding style component) +@param j2k J2K handle +*/ +static void j2k_read_coc(opj_j2k_t *j2k); +/** +Write the value concerning the specified component in the marker QCD and QCC +@param j2k J2K handle +@param compno Number of the component concerned by the information written +*/ +static void j2k_write_qcx(opj_j2k_t *j2k, int compno); +/** +Read the value concerning the specified component in the marker QCD and QCC +@param j2k J2K handle +@param compno Number of the component concern by the information read +@param len Length of the information in the QCX part of the marker QCD/QCC +*/ +static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len); +/** +Write the QCD marker (quantization default) +@param j2k J2K handle +*/ +static void j2k_write_qcd(opj_j2k_t *j2k); +/** +Read the QCD marker (quantization default) +@param j2k J2K handle +*/ +static void j2k_read_qcd(opj_j2k_t *j2k); +/** +Write the QCC marker (quantization component) +@param j2k J2K handle +@param compno Number of the component concerned by the information written +*/ +static void j2k_write_qcc(opj_j2k_t *j2k, int compno); +/** +Read the QCC marker (quantization component) +@param j2k J2K handle +*/ +static void j2k_read_qcc(opj_j2k_t *j2k); +/** +Write the POC marker (progression order change) +@param j2k J2K handle +*/ +static void j2k_write_poc(opj_j2k_t *j2k); +/** +Read the POC marker (progression order change) +@param j2k J2K handle +*/ +static void j2k_read_poc(opj_j2k_t *j2k); +/** +Read the CRG marker (component registration) +@param j2k J2K handle +*/ +static void j2k_read_crg(opj_j2k_t *j2k); +/** +Read the TLM marker (tile-part lengths) +@param j2k J2K handle +*/ +static void j2k_read_tlm(opj_j2k_t *j2k); +/** +Read the PLM marker (packet length, main header) +@param j2k J2K handle +*/ +static void j2k_read_plm(opj_j2k_t *j2k); +/** +Read the PLT marker (packet length, tile-part header) +@param j2k J2K handle +*/ +static void j2k_read_plt(opj_j2k_t *j2k); +/** +Read the PPM marker (packet packet headers, main header) +@param j2k J2K handle +*/ +static void j2k_read_ppm(opj_j2k_t *j2k); +/** +Read the PPT marker (packet packet headers, tile-part header) +@param j2k J2K handle +*/ +static void j2k_read_ppt(opj_j2k_t *j2k); +/** +Write the SOT marker (start of tile-part) +@param j2k J2K handle +*/ +static void j2k_write_sot(opj_j2k_t *j2k); +/** +Read the SOT marker (start of tile-part) +@param j2k J2K handle +*/ +static void j2k_read_sot(opj_j2k_t *j2k); +/** +Write the SOD marker (start of data) +@param j2k J2K handle +@param tile_coder Pointer to a TCD handle +*/ +static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder); +/** +Read the SOD marker (start of data) +@param j2k J2K handle +*/ +static void j2k_read_sod(opj_j2k_t *j2k); +/** +Write the RGN marker (region-of-interest) +@param j2k J2K handle +@param compno Number of the component concerned by the information written +@param tileno Number of the tile concerned by the information written +*/ +static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno); +/** +Read the RGN marker (region-of-interest) +@param j2k J2K handle +*/ +static void j2k_read_rgn(opj_j2k_t *j2k); +/** +Write the EOC marker (end of codestream) +@param j2k J2K handle +*/ +static void j2k_write_eoc(opj_j2k_t *j2k); +/** +Read the EOC marker (end of codestream) +@param j2k J2K handle +*/ +static void j2k_read_eoc(opj_j2k_t *j2k); +/** +Read an unknown marker +@param j2k J2K handle +*/ +static void j2k_read_unk(opj_j2k_t *j2k); + +/*@}*/ + +/*@}*/ + +/* ----------------------------------------------------------------------- */ + +void j2k_dump_image(FILE *fd, opj_image_t * img) { + int compno; + fprintf(fd, "image {\n"); + fprintf(fd, " x0=%d, y0=%d, x1=%d, y1=%d\n", img->x0, img->y0, img->x1, img->y1); + fprintf(fd, " numcomps=%d\n", img->numcomps); + for (compno = 0; compno < img->numcomps; compno++) { + opj_image_comp_t *comp = &img->comps[compno]; + fprintf(fd, " comp %d {\n", compno); + fprintf(fd, " dx=%d, dy=%d\n", comp->dx, comp->dy); + fprintf(fd, " prec=%d\n", comp->prec); + fprintf(fd, " sgnd=%d\n", comp->sgnd); + fprintf(fd, " }\n"); + } + fprintf(fd, "}\n"); +} + +void j2k_dump_cp(FILE *fd, opj_image_t * img, opj_cp_t * cp) { + int tileno, compno, layno, bandno, resno, numbands; + fprintf(fd, "coding parameters {\n"); + fprintf(fd, " tx0=%d, ty0=%d\n", cp->tx0, cp->ty0); + fprintf(fd, " tdx=%d, tdy=%d\n", cp->tdx, cp->tdy); + fprintf(fd, " tw=%d, th=%d\n", cp->tw, cp->th); + for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { + opj_tcp_t *tcp = &cp->tcps[tileno]; + fprintf(fd, " tile %d {\n", tileno); + fprintf(fd, " csty=%x\n", tcp->csty); + fprintf(fd, " prg=%d\n", tcp->prg); + fprintf(fd, " numlayers=%d\n", tcp->numlayers); + fprintf(fd, " mct=%d\n", tcp->mct); + fprintf(fd, " rates="); + for (layno = 0; layno < tcp->numlayers; layno++) { + fprintf(fd, "%.1f ", tcp->rates[layno]); + } + fprintf(fd, "\n"); + for (compno = 0; compno < img->numcomps; compno++) { + opj_tccp_t *tccp = &tcp->tccps[compno]; + fprintf(fd, " comp %d {\n", compno); + fprintf(fd, " csty=%x\n", tccp->csty); + fprintf(fd, " numresolutions=%d\n", tccp->numresolutions); + fprintf(fd, " cblkw=%d\n", tccp->cblkw); + fprintf(fd, " cblkh=%d\n", tccp->cblkh); + fprintf(fd, " cblksty=%x\n", tccp->cblksty); + fprintf(fd, " qmfbid=%d\n", tccp->qmfbid); + fprintf(fd, " qntsty=%d\n", tccp->qntsty); + fprintf(fd, " numgbits=%d\n", tccp->numgbits); + fprintf(fd, " roishift=%d\n", tccp->roishift); + fprintf(fd, " stepsizes="); + numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2; + for (bandno = 0; bandno < numbands; bandno++) { + fprintf(fd, "(%d,%d) ", tccp->stepsizes[bandno].mant, + tccp->stepsizes[bandno].expn); + } + fprintf(fd, "\n"); + + if (tccp->csty & J2K_CCP_CSTY_PRT) { + fprintf(fd, " prcw="); + for (resno = 0; resno < tccp->numresolutions; resno++) { + fprintf(fd, "%d ", tccp->prcw[resno]); + } + fprintf(fd, "\n"); + fprintf(fd, " prch="); + for (resno = 0; resno < tccp->numresolutions; resno++) { + fprintf(fd, "%d ", tccp->prch[resno]); + } + fprintf(fd, "\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, "}\n"); +} + +/* ----------------------------------------------------------------------- */ + +static void j2k_write_soc(opj_j2k_t *j2k) { + opj_cio_t *cio = j2k->cio; + cio_write(cio, J2K_MS_SOC, 2); +} + +static void j2k_read_soc(opj_j2k_t *j2k) { + j2k->state = J2K_STATE_MHSIZ; +} + +static void j2k_write_siz(opj_j2k_t *j2k) { + int i; + int lenp, len; + + opj_cio_t *cio = j2k->cio; + opj_image_t *image = j2k->image; + opj_cp_t *cp = j2k->cp; + + cio_write(cio, J2K_MS_SIZ, 2); /* SIZ */ + lenp = cio_tell(cio); + cio_skip(cio, 2); + cio_write(cio, 0, 2); /* Rsiz (capabilities) */ + cio_write(cio, image->x1, 4); /* Xsiz */ + cio_write(cio, image->y1, 4); /* Ysiz */ + cio_write(cio, image->x0, 4); /* X0siz */ + cio_write(cio, image->y0, 4); /* Y0siz */ + cio_write(cio, cp->tdx, 4); /* XTsiz */ + cio_write(cio, cp->tdy, 4); /* YTsiz */ + cio_write(cio, cp->tx0, 4); /* XT0siz */ + cio_write(cio, cp->ty0, 4); /* YT0siz */ + cio_write(cio, image->numcomps, 2); /* Csiz */ + for (i = 0; i < image->numcomps; i++) { + cio_write(cio, image->comps[i].prec - 1 + (image->comps[i].sgnd << 7), 1); /* Ssiz_i */ + cio_write(cio, image->comps[i].dx, 1); /* XRsiz_i */ + cio_write(cio, image->comps[i].dy, 1); /* YRsiz_i */ + } + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lsiz */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_siz(opj_j2k_t *j2k) { + int len, i; + + opj_cio_t *cio = j2k->cio; + opj_image_t *image = j2k->image; + opj_cp_t *cp = j2k->cp; + + len = cio_read(cio, 2); /* Lsiz */ + cio_read(cio, 2); /* Rsiz (capabilities) */ + image->x1 = cio_read(cio, 4); /* Xsiz */ + image->y1 = cio_read(cio, 4); /* Ysiz */ + image->x0 = cio_read(cio, 4); /* X0siz */ + image->y0 = cio_read(cio, 4); /* Y0siz */ + cp->tdx = cio_read(cio, 4); /* XTsiz */ + cp->tdy = cio_read(cio, 4); /* YTsiz */ + cp->tx0 = cio_read(cio, 4); /* XT0siz */ + cp->ty0 = cio_read(cio, 4); /* YT0siz */ + + image->numcomps = cio_read(cio, 2); /* Csiz */ + image->comps = (opj_image_comp_t *) opj_malloc(image->numcomps * sizeof(opj_image_comp_t)); + for (i = 0; i < image->numcomps; i++) { + int tmp, w, h; + tmp = cio_read(cio, 1); /* Ssiz_i */ + image->comps[i].prec = (tmp & 0x7f) + 1; + image->comps[i].sgnd = tmp >> 7; + image->comps[i].dx = cio_read(cio, 1); /* XRsiz_i */ + image->comps[i].dy = cio_read(cio, 1); /* YRsiz_i */ + + /* TODO: unused ? */ + w = int_ceildiv(image->x1 - image->x0, image->comps[i].dx); + h = int_ceildiv(image->y1 - image->y0, image->comps[i].dy); + + image->comps[i].resno_decoded = 0; /* number of resolution decoded */ + image->comps[i].factor = 0; /* reducing factor per component */ + } + + cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx); + cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy); + cp->tcps = (opj_tcp_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tcp_t)); + cp->tileno = (int *) opj_malloc(cp->tw * cp->th * sizeof(int)); + cp->tileno_size = 0; + + for (i = 0; i < cp->tw * cp->th; i++) { + cp->tcps[i].POC = 0; + cp->tcps[i].numpocs = 0; + cp->tcps[i].first = 1; + } + + /* Initialization for PPM marker */ + cp->ppm = 0; + cp->ppm_data = NULL; + cp->ppm_data_first = NULL; + cp->ppm_previous = 0; + cp->ppm_store = 0; + + j2k->default_tcp->tccps = (opj_tccp_t *) opj_malloc(sizeof(opj_tccp_t) * image->numcomps); + for (i = 0; i < cp->tw * cp->th; i++) { + cp->tcps[i].tccps = (opj_tccp_t *) opj_malloc(sizeof(opj_tccp_t) * image->numcomps); + } + j2k->tile_data = (unsigned char **) opj_malloc(cp->tw * cp->th * sizeof(unsigned char *)); + j2k->tile_len = (int *) opj_malloc(cp->tw * cp->th * sizeof(int)); + j2k->state = J2K_STATE_MH; +} + +static void j2k_write_com(opj_j2k_t *j2k) { + unsigned int i; + int lenp, len; + + if(j2k->cp->comment) { + opj_cio_t *cio = j2k->cio; + char *comment = j2k->cp->comment; + + cio_write(cio, J2K_MS_COM, 2); + lenp = cio_tell(cio); + cio_skip(cio, 2); + cio_write(cio, 0, 2); + for (i = 0; i < strlen(comment); i++) { + cio_write(cio, comment[i], 1); + } + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); + cio_seek(cio, lenp + len); + } +} + +static void j2k_read_com(opj_j2k_t *j2k) { + int len; + + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); + cio_skip(cio, len - 2); +} + +static void j2k_write_cox(opj_j2k_t *j2k, int compno) { + int i; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; + opj_tccp_t *tccp = &tcp->tccps[compno]; + opj_cio_t *cio = j2k->cio; + + cio_write(cio, tccp->numresolutions - 1, 1); /* SPcox (D) */ + cio_write(cio, tccp->cblkw - 2, 1); /* SPcox (E) */ + cio_write(cio, tccp->cblkh - 2, 1); /* SPcox (F) */ + cio_write(cio, tccp->cblksty, 1); /* SPcox (G) */ + cio_write(cio, tccp->qmfbid, 1); /* SPcox (H) */ + + if (tccp->csty & J2K_CCP_CSTY_PRT) { + for (i = 0; i < tccp->numresolutions; i++) { + cio_write(cio, tccp->prcw[i] + (tccp->prch[i] << 4), 1); /* SPcox (I_i) */ + } + } +} + +static void j2k_read_cox(opj_j2k_t *j2k, int compno) { + int i; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_tccp_t *tccp = &tcp->tccps[compno]; + opj_cio_t *cio = j2k->cio; + + tccp->numresolutions = cio_read(cio, 1) + 1; /* SPcox (D) */ + + /* check the reduce value */ + cp->reduce = int_min((tccp->numresolutions)-1, cp->reduce); + tccp->cblkw = cio_read(cio, 1) + 2; /* SPcox (E) */ + tccp->cblkh = cio_read(cio, 1) + 2; /* SPcox (F) */ + tccp->cblksty = cio_read(cio, 1); /* SPcox (G) */ + tccp->qmfbid = cio_read(cio, 1); /* SPcox (H) */ + if (tccp->csty & J2K_CP_CSTY_PRT) { + for (i = 0; i < tccp->numresolutions; i++) { + int tmp = cio_read(cio, 1); /* SPcox (I_i) */ + tccp->prcw[i] = tmp & 0xf; + tccp->prch[i] = tmp >> 4; + } + } +} + +static void j2k_write_cod(opj_j2k_t *j2k) { + opj_cp_t *cp = NULL; + opj_tcp_t *tcp = NULL; + int lenp, len; + + opj_cio_t *cio = j2k->cio; + + cio_write(cio, J2K_MS_COD, 2); /* COD */ + + lenp = cio_tell(cio); + cio_skip(cio, 2); + + cp = j2k->cp; + tcp = &cp->tcps[j2k->curtileno]; + + cio_write(cio, tcp->csty, 1); /* Scod */ + cio_write(cio, tcp->prg, 1); /* SGcod (A) */ + cio_write(cio, tcp->numlayers, 2); /* SGcod (B) */ + cio_write(cio, tcp->mct, 1); /* SGcod (C) */ + + j2k_write_cox(j2k, 0); + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lcod */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_cod(opj_j2k_t *j2k) { + int len, i, pos; + + opj_cio_t *cio = j2k->cio; + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_image_t *image = j2k->image; + + len = cio_read(cio, 2); /* Lcod */ + tcp->csty = cio_read(cio, 1); /* Scod */ + tcp->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* SGcod (A) */ + tcp->numlayers = cio_read(cio, 2); /* SGcod (B) */ + tcp->mct = cio_read(cio, 1); /* SGcod (C) */ + + pos = cio_tell(cio); + for (i = 0; i < image->numcomps; i++) { + tcp->tccps[i].csty = tcp->csty & J2K_CP_CSTY_PRT; + cio_seek(cio, pos); + j2k_read_cox(j2k, i); + } +} + +static void j2k_write_coc(opj_j2k_t *j2k, int compno) { + int lenp, len; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; + opj_image_t *image = j2k->image; + opj_cio_t *cio = j2k->cio; + + cio_write(cio, J2K_MS_COC, 2); /* COC */ + lenp = cio_tell(cio); + cio_skip(cio, 2); + cio_write(cio, compno, image->numcomps <= 256 ? 1 : 2); /* Ccoc */ + cio_write(cio, tcp->tccps[compno].csty, 1); /* Scoc */ + j2k_write_cox(j2k, compno); + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lcoc */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_coc(opj_j2k_t *j2k) { + int len, compno; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_image_t *image = j2k->image; + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); /* Lcoc */ + compno = cio_read(cio, image->numcomps <= 256 ? 1 : 2); /* Ccoc */ + tcp->tccps[compno].csty = cio_read(cio, 1); /* Scoc */ + j2k_read_cox(j2k, compno); +} + +static void j2k_write_qcx(opj_j2k_t *j2k, int compno) { + int bandno, numbands; + int expn, mant; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; + opj_tccp_t *tccp = &tcp->tccps[compno]; + opj_cio_t *cio = j2k->cio; + + cio_write(cio, tccp->qntsty + (tccp->numgbits << 5), 1); /* Sqcx */ + numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2; + + for (bandno = 0; bandno < numbands; bandno++) { + expn = tccp->stepsizes[bandno].expn; + mant = tccp->stepsizes[bandno].mant; + + if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { + cio_write(cio, expn << 3, 1); /* SPqcx_i */ + } else { + cio_write(cio, (expn << 11) + mant, 2); /* SPqcx_i */ + } + } +} + +static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len) { + int tmp; + int bandno, numbands; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_tccp_t *tccp = &tcp->tccps[compno]; + opj_cio_t *cio = j2k->cio; + + tmp = cio_read(cio, 1); /* Sqcx */ + tccp->qntsty = tmp & 0x1f; + tccp->numgbits = tmp >> 5; + numbands = (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? + 1 : ((tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ? len - 1 : (len - 1) / 2); + for (bandno = 0; bandno < numbands; bandno++) { + int expn, mant; + if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { + expn = cio_read(cio, 1) >> 3; /* SPqcx_i */ + mant = 0; + } else { + tmp = cio_read(cio, 2); /* SPqcx_i */ + expn = tmp >> 11; + mant = tmp & 0x7ff; + } + tccp->stepsizes[bandno].expn = expn; + tccp->stepsizes[bandno].mant = mant; + } + + /* Add Antonin : if scalar_derived -> compute other stepsizes */ + if (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) { + for (bandno = 1; bandno < J2K_MAXBANDS; bandno++) { + tccp->stepsizes[bandno].expn = + ((tccp->stepsizes[0].expn) - ((bandno - 1) / 3) > 0) ? + (tccp->stepsizes[0].expn) - ((bandno - 1) / 3) : 0; + tccp->stepsizes[bandno].mant = tccp->stepsizes[0].mant; + } + } + /* ddA */ +} + +static void j2k_write_qcd(opj_j2k_t *j2k) { + int lenp, len; + + opj_cio_t *cio = j2k->cio; + + cio_write(cio, J2K_MS_QCD, 2); /* QCD */ + lenp = cio_tell(cio); + cio_skip(cio, 2); + j2k_write_qcx(j2k, 0); + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lqcd */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_qcd(opj_j2k_t *j2k) { + int len, i, pos; + + opj_cio_t *cio = j2k->cio; + opj_image_t *image = j2k->image; + + len = cio_read(cio, 2); /* Lqcd */ + pos = cio_tell(cio); + for (i = 0; i < image->numcomps; i++) { + cio_seek(cio, pos); + j2k_read_qcx(j2k, i, len - 2); + } +} + +static void j2k_write_qcc(opj_j2k_t *j2k, int compno) { + int lenp, len; + + opj_cio_t *cio = j2k->cio; + + cio_write(cio, J2K_MS_QCC, 2); /* QCC */ + lenp = cio_tell(cio); + cio_skip(cio, 2); + cio_write(cio, compno, j2k->image->numcomps <= 256 ? 1 : 2); /* Cqcc */ + j2k_write_qcx(j2k, compno); + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lqcc */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_qcc(opj_j2k_t *j2k) { + int len, compno; + int numcomp = j2k->image->numcomps; + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); /* Lqcc */ + compno = cio_read(cio, numcomp <= 256 ? 1 : 2); /* Cqcc */ + j2k_read_qcx(j2k, compno, len - 2 - (numcomp <= 256 ? 1 : 2)); +} + +static void j2k_write_poc(opj_j2k_t *j2k) { + int len, numpchgs, i; + + int numcomps = j2k->image->numcomps; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; + opj_tccp_t *tccp = &tcp->tccps[0]; + opj_cio_t *cio = j2k->cio; + + numpchgs = tcp->numpocs; + cio_write(cio, J2K_MS_POC, 2); /* POC */ + len = 2 + (5 + 2 * (numcomps <= 256 ? 1 : 2)) * numpchgs; + cio_write(cio, len, 2); /* Lpoc */ + for (i = 0; i < numpchgs; i++) { + opj_poc_t *poc = &tcp->pocs[i]; + cio_write(cio, poc->resno0, 1); /* RSpoc_i */ + cio_write(cio, poc->compno0, (numcomps <= 256 ? 1 : 2)); /* CSpoc_i */ + cio_write(cio, poc->layno1, 2); /* LYEpoc_i */ + poc->layno1 = int_min(poc->layno1, tcp->numlayers); + cio_write(cio, poc->resno1, 1); /* REpoc_i */ + poc->resno1 = int_min(poc->resno1, tccp->numresolutions); + cio_write(cio, poc->compno1, (numcomps <= 256 ? 1 : 2)); /* CEpoc_i */ + poc->compno1 = int_min(poc->compno1, numcomps); + cio_write(cio, poc->prg, 1); /* Ppoc_i */ + } +} + +static void j2k_read_poc(opj_j2k_t *j2k) { + int len, numpchgs, i, old_poc; + + int numcomps = j2k->image->numcomps; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_tccp_t *tccp = &tcp->tccps[0]; + opj_cio_t *cio = j2k->cio; + + old_poc = tcp->POC ? tcp->numpocs + 1 : 0; + tcp->POC = 1; + len = cio_read(cio, 2); /* Lpoc */ + numpchgs = (len - 2) / (5 + 2 * (numcomps <= 256 ? 1 : 2)); + + for (i = old_poc; i < numpchgs + old_poc; i++) { + opj_poc_t *poc; + poc = &tcp->pocs[i]; + poc->resno0 = cio_read(cio, 1); /* RSpoc_i */ + poc->compno0 = cio_read(cio, numcomps <= 256 ? 1 : 2); /* CSpoc_i */ + poc->layno1 = int_min(cio_read(cio, 2), (unsigned int) tcp->numlayers); /* LYEpoc_i */ + poc->resno1 = int_min(cio_read(cio, 1), (unsigned int) tccp->numresolutions); /* REpoc_i */ + poc->compno1 = int_min( + cio_read(cio, numcomps <= 256 ? 1 : 2), (unsigned int) numcomps); /* CEpoc_i */ + poc->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* Ppoc_i */ + } + + tcp->numpocs = numpchgs + old_poc - 1; +} + +static void j2k_read_crg(opj_j2k_t *j2k) { + int len, i, Xcrg_i, Ycrg_i; + + opj_cio_t *cio = j2k->cio; + int numcomps = j2k->image->numcomps; + + len = cio_read(cio, 2); /* Lcrg */ + for (i = 0; i < numcomps; i++) { + Xcrg_i = cio_read(cio, 2); /* Xcrg_i */ + Ycrg_i = cio_read(cio, 2); /* Ycrg_i */ + } +} + +static void j2k_read_tlm(opj_j2k_t *j2k) { + int len, Ztlm, Stlm, ST, SP, tile_tlm, i; + long int Ttlm_i, Ptlm_i; + + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); /* Ltlm */ + Ztlm = cio_read(cio, 1); /* Ztlm */ + Stlm = cio_read(cio, 1); /* Stlm */ + ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02); + SP = (Stlm >> 6) & 0x01; + tile_tlm = (len - 4) / ((SP + 1) * 2 + ST); + for (i = 0; i < tile_tlm; i++) { + Ttlm_i = cio_read(cio, ST); /* Ttlm_i */ + Ptlm_i = cio_read(cio, SP ? 4 : 2); /* Ptlm_i */ + } +} + +static void j2k_read_plm(opj_j2k_t *j2k) { + int len, i, Zplm, Nplm, add, packet_len = 0; + + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); /* Lplm */ + Zplm = cio_read(cio, 1); /* Zplm */ + len -= 3; + while (len > 0) { + Nplm = cio_read(cio, 4); /* Nplm */ + len -= 4; + for (i = Nplm; i > 0; i--) { + add = cio_read(cio, 1); + len--; + packet_len = (packet_len << 7) + add; /* Iplm_ij */ + if ((add & 0x80) == 0) { + /* New packet */ + packet_len = 0; + } + if (len <= 0) + break; + } + } +} + +static void j2k_read_plt(opj_j2k_t *j2k) { + int len, i, Zplt, packet_len = 0, add; + + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); /* Lplt */ + Zplt = cio_read(cio, 1); /* Zplt */ + for (i = len - 3; i > 0; i--) { + add = cio_read(cio, 1); + packet_len = (packet_len << 7) + add; /* Iplt_i */ + if ((add & 0x80) == 0) { + /* New packet */ + packet_len = 0; + } + } +} + +static void j2k_read_ppm(opj_j2k_t *j2k) { + int len, Z_ppm, i, j; + int N_ppm; + + opj_cp_t *cp = j2k->cp; + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); + cp->ppm = 1; + + Z_ppm = cio_read(cio, 1); /* Z_ppm */ + len -= 3; + while (len > 0) { + if (cp->ppm_previous == 0) { + N_ppm = cio_read(cio, 4); /* N_ppm */ + len -= 4; + } else { + N_ppm = cp->ppm_previous; + } + j = cp->ppm_store; + if (Z_ppm == 0) { /* First PPM marker */ + cp->ppm_data = (unsigned char *) opj_malloc(N_ppm * sizeof(unsigned char)); + cp->ppm_data_first = cp->ppm_data; + cp->ppm_len = N_ppm; + } else { /* NON-first PPM marker */ + cp->ppm_data = (unsigned char *) opj_realloc(cp->ppm_data, (N_ppm + cp->ppm_store) * sizeof(unsigned char)); + cp->ppm_data_first = cp->ppm_data; + cp->ppm_len = N_ppm + cp->ppm_store; + } + for (i = N_ppm; i > 0; i--) { /* Read packet header */ + cp->ppm_data[j] = cio_read(cio, 1); + j++; + len--; + if (len == 0) + break; /* Case of non-finished packet header in present marker but finished in next one */ + } + cp->ppm_previous = i - 1; + cp->ppm_store = j; + } +} + +static void j2k_read_ppt(opj_j2k_t *j2k) { + int len, Z_ppt, i, j = 0; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = cp->tcps + j2k->curtileno; + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); + Z_ppt = cio_read(cio, 1); + tcp->ppt = 1; + if (Z_ppt == 0) { /* First PPT marker */ + tcp->ppt_data = (unsigned char *) opj_malloc((len - 3) * sizeof(unsigned char)); + tcp->ppt_data_first = tcp->ppt_data; + tcp->ppt_store = 0; + tcp->ppt_len = len - 3; + } else { /* NON-first PPT marker */ + tcp->ppt_data = (unsigned char *) opj_realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char)); + tcp->ppt_data_first = tcp->ppt_data; + tcp->ppt_len = len - 3 + tcp->ppt_store; + } + j = tcp->ppt_store; + for (i = len - 3; i > 0; i--) { + tcp->ppt_data[j] = cio_read(cio, 1); + j++; + } + tcp->ppt_store = j; +} + +static void j2k_write_sot(opj_j2k_t *j2k) { + int lenp, len; + + opj_cio_t *cio = j2k->cio; + + j2k->sot_start = cio_tell(cio); + cio_write(cio, J2K_MS_SOT, 2); /* SOT */ + lenp = cio_tell(cio); + cio_skip(cio, 2); /* Lsot (further) */ + cio_write(cio, j2k->curtileno, 2); /* Isot */ + cio_skip(cio, 4); /* Psot (further in j2k_write_sod) */ + cio_write(cio, 0, 1); /* TPsot */ + cio_write(cio, 1, 1); /* TNsot */ + len = cio_tell(cio) - lenp; + cio_seek(cio, lenp); + cio_write(cio, len, 2); /* Lsot */ + cio_seek(cio, lenp + len); +} + +static void j2k_read_sot(opj_j2k_t *j2k) { + int len, tileno, totlen, partno, numparts, i; + opj_tcp_t *tcp = NULL; + char status = 0; + + opj_cp_t *cp = j2k->cp; + opj_cio_t *cio = j2k->cio; + + len = cio_read(cio, 2); + tileno = cio_read(cio, 2); + + if (cp->tileno_size == 0) { + cp->tileno[cp->tileno_size] = tileno; + cp->tileno_size++; + } else { + i = 0; + while (i < cp->tileno_size && status == 0) { + status = cp->tileno[i] == tileno ? 1 : 0; + i++; + } + if (status == 0) { + cp->tileno[cp->tileno_size] = tileno; + cp->tileno_size++; + } + } + + totlen = cio_read(cio, 4); + if (!totlen) + totlen = cio_numbytesleft(cio) + 8; + + partno = cio_read(cio, 1); + numparts = cio_read(cio, 1); + + j2k->curtileno = tileno; + j2k->eot = cio_getbp(cio) - 12 + totlen; + j2k->state = J2K_STATE_TPH; + tcp = &cp->tcps[j2k->curtileno]; + + if (tcp->first == 1) { + + /* Initialization PPT */ + opj_tccp_t *tmp = tcp->tccps; + memcpy(tcp, j2k->default_tcp, sizeof(opj_tcp_t)); + tcp->ppt = 0; + tcp->ppt_data = NULL; + tcp->ppt_data_first = NULL; + tcp->tccps = tmp; + + for (i = 0; i < j2k->image->numcomps; i++) { + tcp->tccps[i] = j2k->default_tcp->tccps[i]; + } + cp->tcps[j2k->curtileno].first = 0; + } +} + +static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder) { + int l, layno; + int totlen; + opj_tcp_t *tcp = NULL; + opj_image_info_t *image_info = NULL; + + opj_tcd_t *tcd = (opj_tcd_t*)tile_coder; /* cast is needed because of conflicts in header inclusions */ + opj_cp_t *cp = j2k->cp; + opj_cio_t *cio = j2k->cio; + + cio_write(cio, J2K_MS_SOD, 2); + if (j2k->curtileno == 0) { + j2k->sod_start = cio_tell(cio) + j2k->pos_correction; + } + + /* INDEX >> */ + image_info = j2k->image_info; + if (image_info && image_info->index_on) { + image_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1; + } + /* << INDEX */ + + tcp = &cp->tcps[j2k->curtileno]; + for (layno = 0; layno < tcp->numlayers; layno++) { + tcp->rates[layno] -= tcp->rates[layno] ? (j2k->sod_start / (cp->th * cp->tw)) : 0; + } + if(image_info) { + image_info->num = 0; + } + + l = tcd_encode_tile(tcd, j2k->curtileno, cio_getbp(cio), cio_numbytesleft(cio) - 2, image_info); + + /* Writing Psot in SOT marker */ + totlen = cio_tell(cio) + l - j2k->sot_start; + cio_seek(cio, j2k->sot_start + 6); + cio_write(cio, totlen, 4); + cio_seek(cio, j2k->sot_start + totlen); +} + +static void j2k_read_sod(opj_j2k_t *j2k) { + int len, truncate = 0, i; + unsigned char *data = NULL, *data_ptr = NULL; + + opj_cio_t *cio = j2k->cio; + int curtileno = j2k->curtileno; + + len = int_min(j2k->eot - cio_getbp(cio), cio_numbytesleft(cio) + 1); + + if (len == cio_numbytesleft(cio) + 1) { + truncate = 1; /* Case of a truncate codestream */ + } + + data = (unsigned char *) opj_malloc((j2k->tile_len[curtileno] + len) * sizeof(unsigned char)); + + for (i = 0; i < j2k->tile_len[curtileno]; i++) { + data[i] = j2k->tile_data[curtileno][i]; + } + + data_ptr = data + j2k->tile_len[curtileno]; + for (i = 0; i < len; i++) { + data_ptr[i] = cio_read(cio, 1); + } + + j2k->tile_len[curtileno] += len; + opj_free(j2k->tile_data[curtileno]); + j2k->tile_data[curtileno] = data; + + if (!truncate) { + j2k->state = J2K_STATE_TPHSOT; + } else { + j2k->state = J2K_STATE_NEOC; /* RAJOUTE !! */ + } +} + +static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno) { + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = &cp->tcps[tileno]; + opj_cio_t *cio = j2k->cio; + int numcomps = j2k->image->numcomps; + + cio_write(cio, J2K_MS_RGN, 2); /* RGN */ + cio_write(cio, numcomps <= 256 ? 5 : 6, 2); /* Lrgn */ + cio_write(cio, compno, numcomps <= 256 ? 1 : 2); /* Crgn */ + cio_write(cio, 0, 1); /* Srgn */ + cio_write(cio, tcp->tccps[compno].roishift, 1); /* SPrgn */ +} + +static void j2k_read_rgn(opj_j2k_t *j2k) { + int len, compno, roisty; + + opj_cp_t *cp = j2k->cp; + opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; + opj_cio_t *cio = j2k->cio; + int numcomps = j2k->image->numcomps; + + len = cio_read(cio, 2); /* Lrgn */ + compno = cio_read(cio, numcomps <= 256 ? 1 : 2); /* Crgn */ + roisty = cio_read(cio, 1); /* Srgn */ + tcp->tccps[compno].roishift = cio_read(cio, 1); /* SPrgn */ +} + +static void j2k_write_eoc(opj_j2k_t *j2k) { + opj_cio_t *cio = j2k->cio; + /* opj_event_msg(j2k->cinfo, "%.8x: EOC\n", cio_tell(cio) + j2k->pos_correction); */ + cio_write(cio, J2K_MS_EOC, 2); +} + +static void j2k_read_eoc(opj_j2k_t *j2k) { + int i, tileno; + +#ifndef NO_PACKETS_DECODING + opj_tcd_t *tcd = tcd_create(j2k->cinfo); + tcd_malloc_decode(tcd, j2k->image, j2k->cp); + for (i = 0; i < j2k->cp->tileno_size; i++) { + tileno = j2k->cp->tileno[i]; + tcd_decode_tile(tcd, j2k->tile_data[tileno], j2k->tile_len[tileno], tileno); + opj_free(j2k->tile_data[tileno]); + j2k->tile_data[tileno] = NULL; + } + tcd_free_decode(tcd); + tcd_destroy(tcd); +#else + for (i = 0; i < j2k->cp->tileno_size; i++) { + tileno = j2k->cp->tileno[i]; + opj_free(j2k->tile_data[tileno]); + j2k->tile_data[tileno] = NULL; + } +#endif + + j2k->state = J2K_STATE_MT; +} + +static void j2k_read_unk(opj_j2k_t *j2k) { + opj_event_msg(j2k->cinfo, EVT_WARNING, "Unknown marker\n"); +} + +typedef struct opj_dec_mstabent { + /** marker value */ + int id; + /** value of the state when the marker can appear */ + int states; + /** action linked to the marker */ + void (*handler) (opj_j2k_t *j2k); +} opj_dec_mstabent_t; + +opj_dec_mstabent_t j2k_dec_mstab[] = { + {J2K_MS_SOC, J2K_STATE_MHSOC, j2k_read_soc}, + {J2K_MS_SOT, J2K_STATE_MH | J2K_STATE_TPHSOT, j2k_read_sot}, + {J2K_MS_SOD, J2K_STATE_TPH, j2k_read_sod}, + {J2K_MS_EOC, J2K_STATE_TPHSOT, j2k_read_eoc}, + {J2K_MS_SIZ, J2K_STATE_MHSIZ, j2k_read_siz}, + {J2K_MS_COD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_cod}, + {J2K_MS_COC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_coc}, + {J2K_MS_RGN, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_rgn}, + {J2K_MS_QCD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcd}, + {J2K_MS_QCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcc}, + {J2K_MS_POC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_poc}, + {J2K_MS_TLM, J2K_STATE_MH, j2k_read_tlm}, + {J2K_MS_PLM, J2K_STATE_MH, j2k_read_plm}, + {J2K_MS_PLT, J2K_STATE_TPH, j2k_read_plt}, + {J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm}, + {J2K_MS_PPT, J2K_STATE_TPH, j2k_read_ppt}, + {J2K_MS_SOP, 0, 0}, + {J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg}, + {J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com}, + {0, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_unk} +}; + +/** +Read the lookup table containing all the marker, status and action +@param id Marker value +*/ +static opj_dec_mstabent_t *j2k_dec_mstab_lookup(int id) { + opj_dec_mstabent_t *e; + for (e = j2k_dec_mstab; e->id != 0; e++) { + if (e->id == id) { + break; + } + } + return e; +} + +/* ----------------------------------------------------------------------- */ +/* J2K / JPT decoder interface */ +/* ----------------------------------------------------------------------- */ + +opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo) { + opj_j2k_t *j2k = (opj_j2k_t*)opj_malloc(sizeof(opj_j2k_t)); + if(j2k) { + j2k->cinfo = cinfo; + j2k->default_tcp = (opj_tcp_t*)opj_malloc(sizeof(opj_tcp_t)); + if(!j2k->default_tcp) { + opj_free(j2k); + return NULL; + } + } + return j2k; +} + +void j2k_destroy_decompress(opj_j2k_t *j2k) { + int i = 0; + + if(j2k->tile_len != NULL) { + opj_free(j2k->tile_len); + } + if(j2k->tile_data != NULL) { + opj_free(j2k->tile_data); + } + if(j2k->default_tcp != NULL) { + opj_tcp_t *default_tcp = j2k->default_tcp; + if(default_tcp->ppt_data_first != NULL) { + opj_free(default_tcp->ppt_data_first); + } + if(j2k->default_tcp->tccps != NULL) { + opj_free(j2k->default_tcp->tccps); + } + opj_free(j2k->default_tcp); + } + if(j2k->cp != NULL) { + opj_cp_t *cp = j2k->cp; + if(cp->tcps != NULL) { + for(i = 0; i < cp->tw * cp->th; i++) { + if(cp->tcps[i].ppt_data_first != NULL) { + opj_free(cp->tcps[i].ppt_data_first); + } + if(cp->tcps[i].tccps != NULL) { + opj_free(cp->tcps[i].tccps); + } + } + opj_free(cp->tcps); + } + if(cp->ppm_data_first != NULL) { + opj_free(cp->ppm_data_first); + } + if(cp->tileno != NULL) { + opj_free(cp->tileno); + } + if(cp->comment != NULL) { + opj_free(cp->comment); + } + + opj_free(cp); + } + + opj_free(j2k); +} + +void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) { + if(j2k && parameters) { + /* create and initialize the coding parameters structure */ + opj_cp_t *cp = (opj_cp_t*)opj_malloc(sizeof(opj_cp_t)); + cp->reduce = parameters->cp_reduce; + cp->layer = parameters->cp_layer; + + /* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */ + j2k->cp = cp; + } +} + +opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio) { + opj_image_t *image = NULL; + + opj_common_ptr cinfo = j2k->cinfo; + + j2k->cio = cio; + + /* create an empty image */ + image = opj_image_create0(); + j2k->image = image; + + j2k->state = J2K_STATE_MHSOC; + + for (;;) { + opj_dec_mstabent_t *e; + int id = cio_read(cio, 2); + if (id >> 8 != 0xff) { + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); + return 0; + } + e = j2k_dec_mstab_lookup(id); + if (!(j2k->state & e->states)) { + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id); + return 0; + } + if (e->handler) { + (*e->handler)(j2k); + } + if (j2k->state == J2K_STATE_MT) { + break; + } + if (j2k->state == J2K_STATE_NEOC) { + break; + } + } + if (j2k->state == J2K_STATE_NEOC) { + j2k_read_eoc(j2k); + } + + if (j2k->state != J2K_STATE_MT) { + opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n"); + } + + return image; +} + +/* +* Read a JPT-stream and decode file +* +*/ +opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio) { + opj_image_t *image = NULL; + opj_jpt_msg_header_t header; + int position; + + opj_common_ptr cinfo = j2k->cinfo; + + j2k->cio = cio; + + /* create an empty image */ + image = opj_image_create0(); + + j2k->state = J2K_STATE_MHSOC; + + /* Initialize the header */ + jpt_init_msg_header(&header); + /* Read the first header of the message */ + jpt_read_msg_header(cinfo, cio, &header); + + position = cio_tell(cio); + if (header.Class_Id != 6) { /* 6 : Main header data-bin message */ + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Main header first [class_Id %d] !\n", header.Class_Id); + return 0; + } + + for (;;) { + opj_dec_mstabent_t *e = NULL; + int id; + + if (!cio_numbytesleft(cio)) { + j2k_read_eoc(j2k); + return image; + } + /* data-bin read -> need to read a new header */ + if ((unsigned int) (cio_tell(cio) - position) == header.Msg_length) { + jpt_read_msg_header(cinfo, cio, &header); + position = cio_tell(cio); + if (header.Class_Id != 4) { /* 4 : Tile data-bin message */ + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Tile info !\n"); + return 0; + } + } + + id = cio_read(cio, 2); + if (id >> 8 != 0xff) { + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); + return 0; + } + e = j2k_dec_mstab_lookup(id); + if (!(j2k->state & e->states)) { + opj_image_destroy(image); + opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id); + return 0; + } + if (e->handler) { + (*e->handler)(j2k); + } + if (j2k->state == J2K_STATE_MT) { + break; + } + if (j2k->state == J2K_STATE_NEOC) { + break; + } + } + if (j2k->state == J2K_STATE_NEOC) { + j2k_read_eoc(j2k); + } + + if (j2k->state != J2K_STATE_MT) { + opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n"); + } + + return image; +} + +/* ----------------------------------------------------------------------- */ +/* J2K encoder interface */ +/* ----------------------------------------------------------------------- */ + +opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo) { + opj_j2k_t *j2k = (opj_j2k_t*)opj_malloc(sizeof(opj_j2k_t)); + if(j2k) { + j2k->cinfo = cinfo; + } + return j2k; +} + +void j2k_destroy_compress(opj_j2k_t *j2k) { + int tileno; + + if(!j2k) return; + + if(j2k->image_info != NULL) { + opj_image_info_t *image_info = j2k->image_info; + if (image_info->index_on && j2k->cp) { + opj_cp_t *cp = j2k->cp; + for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { + opj_tile_info_t *tile_info = &image_info->tile[tileno]; + opj_free(tile_info->thresh); + opj_free(tile_info->packet); + } + opj_free(image_info->tile); + } + opj_free(image_info); + } + if(j2k->cp != NULL) { + opj_cp_t *cp = j2k->cp; + + if(cp->comment) { + opj_free(cp->comment); + } + if(cp->matrice) { + opj_free(cp->matrice); + } + for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { + opj_free(cp->tcps[tileno].tccps); + } + opj_free(cp->tcps); + opj_free(cp); + } + + opj_free(j2k); +} + +void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image) { + int i, j, tileno, numpocs_tile; + opj_cp_t *cp = NULL; + + if(!j2k || !parameters || ! image) { + return; + } + + /* create and initialize the coding parameters structure */ + cp = (opj_cp_t*)opj_malloc(sizeof(opj_cp_t)); + + /* keep a link to cp so that we can destroy it later in j2k_destroy_compress */ + j2k->cp = cp; + + /* set default values for cp */ + cp->tw = 1; + cp->th = 1; + + /* + copy user encoding parameters + */ + + cp->disto_alloc = parameters->cp_disto_alloc; + cp->fixed_alloc = parameters->cp_fixed_alloc; + cp->fixed_quality = parameters->cp_fixed_quality; + + /* mod fixed_quality */ + if(parameters->cp_matrice) { + size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(int); + cp->matrice = (int *) opj_malloc(array_size); + memcpy(cp->matrice, parameters->cp_matrice, array_size); + } + + /* creation of an index file ? */ + cp->index_on = parameters->index_on; + if(cp->index_on) { + j2k->image_info = (opj_image_info_t*)opj_malloc(sizeof(opj_image_info_t)); + } + + /* tiles */ + cp->tdx = parameters->cp_tdx; + cp->tdy = parameters->cp_tdy; + + /* tile offset */ + cp->tx0 = parameters->cp_tx0; + cp->ty0 = parameters->cp_ty0; + + /* comment string */ + if(parameters->cp_comment) { + cp->comment = (char*)opj_malloc(strlen(parameters->cp_comment) + 1); + if(cp->comment) { + strcpy(cp->comment, parameters->cp_comment); + } + } + + /* + calculate other encoding parameters + */ + + if (parameters->tile_size_on) { + cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx); + cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy); + } else { + cp->tdx = image->x1 - cp->tx0; + cp->tdy = image->y1 - cp->ty0; + } + + /* initialize the mutiple tiles */ + /* ---------------------------- */ + cp->tcps = (opj_tcp_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tcp_t)); + + for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { + opj_tcp_t *tcp = &cp->tcps[tileno]; + tcp->numlayers = parameters->tcp_numlayers; + for (j = 0; j < tcp->numlayers; j++) { + if (cp->fixed_quality) { /* add fixed_quality */ + tcp->distoratio[j] = parameters->tcp_distoratio[j]; + } else { + tcp->rates[j] = parameters->tcp_rates[j]; + } + } + tcp->csty = parameters->csty; + tcp->prg = parameters->prog_order; + tcp->mct = image->numcomps == 3 ? 1 : 0; + + numpocs_tile = 0; + tcp->POC = 0; + if (parameters->numpocs) { + /* initialisation of POC */ + tcp->POC = 1; + for (i = 0; i < parameters->numpocs; i++) { + if((tileno == parameters->POC[i].tile - 1) || (parameters->POC[i].tile == -1)) { + opj_poc_t *tcp_poc = &tcp->pocs[numpocs_tile]; + tcp_poc->resno0 = parameters->POC[numpocs_tile].resno0; + tcp_poc->compno0 = parameters->POC[numpocs_tile].compno0; + tcp_poc->layno1 = parameters->POC[numpocs_tile].layno1; + tcp_poc->resno1 = parameters->POC[numpocs_tile].resno1; + tcp_poc->compno1 = parameters->POC[numpocs_tile].compno1; + tcp_poc->prg = parameters->POC[numpocs_tile].prg; + tcp_poc->tile = parameters->POC[numpocs_tile].tile; + numpocs_tile++; + } + } + } + tcp->numpocs = numpocs_tile; + + tcp->tccps = (opj_tccp_t *) opj_malloc(image->numcomps * sizeof(opj_tccp_t)); + + for (i = 0; i < image->numcomps; i++) { + opj_tccp_t *tccp = &tcp->tccps[i]; + tccp->csty = parameters->csty & 0x01; /* 0 => one precinct || 1 => custom precinct */ + tccp->numresolutions = parameters->numresolution; + tccp->cblkw = int_floorlog2(parameters->cblockw_init); + tccp->cblkh = int_floorlog2(parameters->cblockh_init); + tccp->cblksty = parameters->mode; + tccp->qmfbid = parameters->irreversible ? 0 : 1; + tccp->qntsty = parameters->irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT; + tccp->numgbits = 2; + if (i == parameters->roi_compno) { + tccp->roishift = parameters->roi_shift; + } else { + tccp->roishift = 0; + } + if (parameters->csty & J2K_CCP_CSTY_PRT) { + int p = 0; + for (j = tccp->numresolutions - 1; j >= 0; j--) { + if (p < parameters->res_spec) { + if (parameters->prcw_init[p] < 1) { + tccp->prcw[j] = 1; + } else { + tccp->prcw[j] = int_floorlog2(parameters->prcw_init[p]); + } + if (parameters->prch_init[p] < 1) { + tccp->prch[j] = 1; + } else { + tccp->prch[j] = int_floorlog2(parameters->prch_init[p]); + } + } else { + int res_spec = parameters->res_spec; + int size_prcw = parameters->prcw_init[res_spec - 1] >> (p - (res_spec - 1)); + int size_prch = parameters->prch_init[res_spec - 1] >> (p - (res_spec - 1)); + if (size_prcw < 1) { + tccp->prcw[j] = 1; + } else { + tccp->prcw[j] = int_floorlog2(size_prcw); + } + if (size_prch < 1) { + tccp->prch[j] = 1; + } else { + tccp->prch[j] = int_floorlog2(size_prch); + } + } + p++; + /*printf("\nsize precinct for level %d : %d,%d\n", j,tccp->prcw[j], tccp->prch[j]); */ + } + } else { + for (j = 0; j < tccp->numresolutions; j++) { + tccp->prcw[j] = 15; + tccp->prch[j] = 15; + } + } + + dwt_calc_explicit_stepsizes(tccp, image->comps[i].prec); + } + } +} + +/** +Create an index file +@param j2k +@param cio +@param image_info +@param index Index filename +@return Returns 1 if successful, returns 0 otherwise +*/ +static int j2k_create_index(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_info_t *image_info, char *index) { + int tileno, compno, layno, resno, precno, pack_nb, x, y; + FILE *stream = NULL; + double total_disto = 0; + + image_info->codestream_size = cio_tell(cio) + j2k->pos_correction; /* Correction 14/4/03 suite rmq de Patrick */ + + stream = fopen(index, "w"); + if (!stream) { + opj_event_msg(j2k->cinfo, EVT_ERROR, "failed to open %s for writing\n", index); + return 0; + } + + fprintf(stream, "%d %d\n", image_info->image_w, image_info->image_h); + fprintf(stream, "%d\n", image_info->prog); + fprintf(stream, "%d %d\n", image_info->tile_x, image_info->tile_y); + fprintf(stream, "%d %d\n", image_info->tw, image_info->th); + fprintf(stream, "%d\n", image_info->comp); + fprintf(stream, "%d\n", image_info->layer); + fprintf(stream, "%d\n", image_info->decomposition); + + for (resno = image_info->decomposition; resno >= 0; resno--) { + fprintf(stream, "[%d,%d] ", + (1 << image_info->tile[0].pdx[resno]), (1 << image_info->tile[0].pdx[resno])); /* based on tile 0 */ + } + fprintf(stream, "\n"); + fprintf(stream, "%d\n", image_info->main_head_end); + fprintf(stream, "%d\n", image_info->codestream_size); + + for (tileno = 0; tileno < image_info->tw * image_info->th; tileno++) { + fprintf(stream, "%4d %9d %9d %9d %9e %9d %9e\n", + image_info->tile[tileno].num_tile, + image_info->tile[tileno].start_pos, + image_info->tile[tileno].end_header, + image_info->tile[tileno].end_pos, + image_info->tile[tileno].distotile, image_info->tile[tileno].nbpix, + image_info->tile[tileno].distotile / image_info->tile[tileno].nbpix); + } + + for (tileno = 0; tileno < image_info->tw * image_info->th; tileno++) { + int start_pos, end_pos; + double disto = 0; + pack_nb = 0; + + /* + fprintf(stream, "pkno tileno layerno resno compno precno start_pos end_pos deltaSE \n"); + */ + + if (image_info->prog == LRCP) { /* LRCP */ + /* + fprintf(stream, "pack_nb tileno layno resno compno precno start_pos end_pos disto"); + */ + for (layno = 0; layno < image_info->layer; layno++) { + for (resno = 0; resno < image_info->decomposition + 1; resno++) { + for (compno = 0; compno < image_info->comp; compno++) { + int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno]; + for (precno = 0; precno < prec_max; precno++) { + start_pos = image_info->tile[tileno].packet[pack_nb].start_pos; + end_pos = image_info->tile[tileno].packet[pack_nb].end_pos; + disto = image_info->tile[tileno].packet[pack_nb].disto; + fprintf(stream, "%4d %6d %7d %5d %6d %6d %9d %9d %8e\n", + pack_nb, tileno, layno, resno, compno, precno, start_pos, end_pos, disto); + total_disto += disto; + pack_nb++; + } + } + } + } + } /* LRCP */ + else if (image_info->prog == RLCP) { /* RLCP */ + /* + fprintf(stream, "pack_nb tileno resno layno compno precno start_pos end_pos disto"); + */ + for (resno = 0; resno < image_info->decomposition + 1; resno++) { + for (layno = 0; layno < image_info->layer; layno++) { + for (compno = 0; compno < image_info->comp; compno++) { + int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno]; + for (precno = 0; precno < prec_max; precno++) { + start_pos = image_info->tile[tileno].packet[pack_nb].start_pos; + end_pos = image_info->tile[tileno].packet[pack_nb].end_pos; + disto = image_info->tile[tileno].packet[pack_nb].disto; + fprintf(stream, "%4d %6d %5d %7d %6d %6d %9d %9d %8e\n", + pack_nb, tileno, resno, layno, compno, precno, start_pos, end_pos, disto); + total_disto += disto; + pack_nb++; + } + } + } + } + } /* RLCP */ + else if (image_info->prog == RPCL) { /* RPCL */ + /* + fprintf(stream, "\npack_nb tileno resno precno compno layno start_pos end_pos disto\n"); + */ + for (resno = 0; resno < image_info->decomposition + 1; resno++) { + /* I suppose components have same XRsiz, YRsiz */ + int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x; + int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y; + int x1 = x0 + image_info->tile_x; + int y1 = y0 + image_info->tile_y; + for(y = y0; y < y1; y++) { + for(x = x0; x < x1; x++) { + for (compno = 0; compno < image_info->comp; compno++) { + int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno]; + for (precno = 0; precno < prec_max; precno++) { + int pcnx = image_info->tile[tileno].pw[resno]; + int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno ); + int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno ); + int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx; + int precno_y = (int) floor( (float)precno/(float)pcnx ); + if (precno_y*pcy == y ) { + if (precno_x*pcx == x ) { + for (layno = 0; layno < image_info->layer; layno++) { + start_pos = image_info->tile[tileno].packet[pack_nb].start_pos; + end_pos = image_info->tile[tileno].packet[pack_nb].end_pos; + disto = image_info->tile[tileno].packet[pack_nb].disto; + fprintf(stream, "%4d %6d %5d %6d %6d %7d %9d %9d %8e\n", + pack_nb, tileno, resno, precno, compno, layno, start_pos, end_pos, disto); + total_disto += disto; + pack_nb++; + } + } + } + } /* precno */ + } /* compno */ + } /* x = x0..x1 */ + } /* y = y0..y1 */ + } /* resno */ + } /* RPCL */ + else if (image_info->prog == PCRL) { /* PCRL */ + /* I suppose components have same XRsiz, YRsiz */ + int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x; + int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y; + int x1 = x0 + image_info->tile_x; + int y1 = y0 + image_info->tile_y; + /* + fprintf(stream, "\npack_nb tileno precno compno resno layno start_pos end_pos disto\n"); + */ + for(y = y0; y < y1; y++) { + for(x = x0; x < x1; x++) { + for (compno = 0; compno < image_info->comp; compno++) { + for (resno = 0; resno < image_info->decomposition + 1; resno++) { + int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno]; + for (precno = 0; precno < prec_max; precno++) { + int pcnx = image_info->tile[tileno].pw[resno]; + int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno ); + int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno ); + int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx; + int precno_y = (int) floor( (float)precno/(float)pcnx ); + if (precno_y*pcy == y ) { + if (precno_x*pcx == x ) { + for (layno = 0; layno < image_info->layer; layno++) { + start_pos = image_info->tile[tileno].packet[pack_nb].start_pos; + end_pos = image_info->tile[tileno].packet[pack_nb].end_pos; + disto = image_info->tile[tileno].packet[pack_nb].disto; + fprintf(stream, "%4d %6d %6d %6d %5d %7d %9d %9d %8e\n", + pack_nb, tileno, precno, compno, resno, layno, start_pos, end_pos, disto); + total_disto += disto; + pack_nb++; + } + } + } + } /* precno */ + } /* resno */ + } /* compno */ + } /* x = x0..x1 */ + } /* y = y0..y1 */ + } /* PCRL */ + else { /* CPRL */ + /* + fprintf(stream, "\npack_nb tileno compno precno resno layno start_pos end_pos disto\n"); + */ + for (compno = 0; compno < image_info->comp; compno++) { + /* I suppose components have same XRsiz, YRsiz */ + int x0 = image_info->tile_Ox + tileno - (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tw * image_info->tile_x; + int y0 = image_info->tile_Ox + (int)floor( (float)tileno/(float)image_info->tw ) * image_info->tile_y; + int x1 = x0 + image_info->tile_x; + int y1 = y0 + image_info->tile_y; + for(y = y0; y < y1; y++) { + for(x = x0; x < x1; x++) { + for (resno = 0; resno < image_info->decomposition + 1; resno++) { + int prec_max = image_info->tile[tileno].pw[resno] * image_info->tile[tileno].ph[resno]; + for (precno = 0; precno < prec_max; precno++) { + int pcnx = image_info->tile[tileno].pw[resno]; + int pcx = (int) pow( 2, image_info->tile[tileno].pdx[resno] + image_info->decomposition - resno ); + int pcy = (int) pow( 2, image_info->tile[tileno].pdy[resno] + image_info->decomposition - resno ); + int precno_x = precno - (int) floor( (float)precno/(float)pcnx ) * pcnx; + int precno_y = (int) floor( (float)precno/(float)pcnx ); + if (precno_y*pcy == y ) { + if (precno_x*pcx == x ) { + for (layno = 0; layno < image_info->layer; layno++) { + start_pos = image_info->tile[tileno].packet[pack_nb].start_pos; + end_pos = image_info->tile[tileno].packet[pack_nb].end_pos; + disto = image_info->tile[tileno].packet[pack_nb].disto; + fprintf(stream, "%4d %6d %6d %6d %5d %7d %9d %9d %8e\n", + pack_nb, tileno, compno, precno, resno, layno, start_pos, end_pos, disto); + total_disto += disto; + pack_nb++; + } + } + } + } /* precno */ + } /* resno */ + } /* x = x0..x1 */ + } /* y = y0..y1 */ + } /* comno */ + } /* CPRL */ + } /* tileno */ + + fprintf(stream, "%8e\n", image_info->D_max); /* SE max */ + fprintf(stream, "%.8e\n", total_disto); /* SE totale */ + fclose(stream); + + return 1; +} + +bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, char *index) { + int tileno, compno; + opj_image_info_t *image_info = NULL; + opj_cp_t *cp = NULL; + + opj_tcd_t *tcd = NULL; /* TCD component */ + + j2k->cio = cio; + j2k->image = image; + + cp = j2k->cp; + + /* j2k_dump_cp(stdout, image, cp); */ + + /* INDEX >> */ + image_info = j2k->image_info; + if (image_info && cp->index_on) { + image_info->index_on = cp->index_on; + image_info->tile = (opj_tile_info_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tile_info_t)); + image_info->image_w = image->x1 - image->x0; + image_info->image_h = image->y1 - image->y0; + image_info->prog = (&cp->tcps[0])->prg; + image_info->tw = cp->tw; + image_info->th = cp->th; + image_info->tile_x = cp->tdx; /* new version parser */ + image_info->tile_y = cp->tdy; /* new version parser */ + image_info->tile_Ox = cp->tx0; /* new version parser */ + image_info->tile_Oy = cp->ty0; /* new version parser */ + image_info->comp = image->numcomps; + image_info->layer = (&cp->tcps[0])->numlayers; + image_info->decomposition = (&cp->tcps[0])->tccps->numresolutions - 1; + image_info->D_max = 0; /* ADD Marcela */ + } + /* << INDEX */ + + j2k_write_soc(j2k); + j2k_write_siz(j2k); + j2k_write_cod(j2k); + j2k_write_qcd(j2k); + for (compno = 0; compno < image->numcomps; compno++) { + opj_tcp_t *tcp = &cp->tcps[0]; + if (tcp->tccps[compno].roishift) + j2k_write_rgn(j2k, compno, 0); + } + if (cp->comment != NULL) { + j2k_write_com(j2k); + } + /* INDEX >> */ + if(image_info && image_info->index_on) { + image_info->main_head_end = cio_tell(cio) - 1; + } + /* << INDEX */ + + /* create the tile encoder */ + tcd = tcd_create(j2k->cinfo); + + /* encode each tile */ + + for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { + opj_event_msg(j2k->cinfo, EVT_INFO, "tile number %d / %d\n", tileno + 1, cp->tw * cp->th); + + j2k->curtileno = tileno; + + /* initialisation before tile encoding */ + if (tileno == 0) { + tcd_malloc_encode(tcd, image, cp, j2k->curtileno); + } else { + tcd_init_encode(tcd, image, cp, j2k->curtileno); + } + + /* INDEX >> */ + if(image_info && image_info->index_on) { + image_info->tile[j2k->curtileno].num_tile = j2k->curtileno; + image_info->tile[j2k->curtileno].start_pos = cio_tell(cio) + j2k->pos_correction; + } + /* << INDEX */ + + j2k_write_sot(j2k); + + for (compno = 1; compno < image->numcomps; compno++) { + j2k_write_coc(j2k, compno); + j2k_write_qcc(j2k, compno); + } + if (cp->tcps[tileno].numpocs) { + j2k_write_poc(j2k); + } + + j2k_write_sod(j2k, tcd); + + /* INDEX >> */ + if(image_info && image_info->index_on) { + image_info->tile[j2k->curtileno].end_pos = cio_tell(cio) + j2k->pos_correction - 1; + } + /* << INDEX */ + + + /* + if (tile->PPT) { // BAD PPT !!! + FILE *PPT_file; + int i; + PPT_file=fopen("PPT","rb"); + fprintf(stderr,"%c%c%c%c",255,97,tile->len_ppt/256,tile->len_ppt%256); + for (i=0;ilen_ppt;i++) { + unsigned char elmt; + fread(&elmt, 1, 1, PPT_file); + fwrite(&elmt,1,1,f); + } + fclose(PPT_file); + unlink("PPT"); + } + */ + + } + + /* destroy the tile encoder */ + tcd_free_encode(tcd); + tcd_destroy(tcd); + + j2k_write_eoc(j2k); + + /* Creation of the index file */ + if(image_info && image_info->index_on) { + if(!j2k_create_index(j2k, cio, image_info, index)) { + opj_event_msg(j2k->cinfo, EVT_ERROR, "failed to create index file %s\n", index); + return false; + } + } + + return true; +} + diff --git a/libopenjpeg/j2k.h b/libopenjpeg/j2k.h new file mode 100644 index 00000000..c5282465 --- /dev/null +++ b/libopenjpeg/j2k.h @@ -0,0 +1,429 @@ +/* + * 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 */ diff --git a/libopenjpeg/j2k_lib.c b/libopenjpeg/j2k_lib.c new file mode 100644 index 00000000..69444a7b --- /dev/null +++ b/libopenjpeg/j2k_lib.c @@ -0,0 +1,76 @@ +/* + * 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 +#else +#include +#include +#include +#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); +} + + diff --git a/libopenjpeg/j2k_lib.h b/libopenjpeg/j2k_lib.h new file mode 100644 index 00000000..3d1b53c9 --- /dev/null +++ b/libopenjpeg/j2k_lib.h @@ -0,0 +1,75 @@ +/* + * 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 */ + diff --git a/libopenjpeg/jp2.c b/libopenjpeg/jp2.c new file mode 100644 index 00000000..c411f7e0 --- /dev/null +++ b/libopenjpeg/jp2.c @@ -0,0 +1,704 @@ +/* + * 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; +} + + diff --git a/libopenjpeg/jp2.h b/libopenjpeg/jp2.h new file mode 100644 index 00000000..f42689e1 --- /dev/null +++ b/libopenjpeg/jp2.h @@ -0,0 +1,162 @@ +/* + * 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 */ + diff --git a/libopenjpeg/jpt.c b/libopenjpeg/jpt.c new file mode 100644 index 00000000..6bf0f0a1 --- /dev/null +++ b/libopenjpeg/jpt.c @@ -0,0 +1,154 @@ +/* + * 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); + } +} diff --git a/libopenjpeg/jpt.h b/libopenjpeg/jpt.h new file mode 100644 index 00000000..0350e653 --- /dev/null +++ b/libopenjpeg/jpt.h @@ -0,0 +1,74 @@ +/* + * 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 diff --git a/libopenjpeg/mct.c b/libopenjpeg/mct.c new file mode 100644 index 00000000..f41c9ab0 --- /dev/null +++ b/libopenjpeg/mct.c @@ -0,0 +1,131 @@ +/* + * 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" + +/* */ +/* This table contains the norms of the basis function of the reversible MCT. */ +/* */ +static const double mct_norms[3] = { 1.732, .8292, .8292 }; + +/* */ +/* This table contains the norms of the basis function of the irreversible MCT. */ +/* */ +static const double mct_norms_real[3] = { 1.732, 1.805, 1.573 }; + +/* */ +/* Foward reversible MCT. */ +/* */ +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; + } +} + +/* */ +/* Inverse reversible MCT. */ +/* */ +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; + } +} + +/* */ +/* Get norm of basis function of reversible MCT. */ +/* */ +double mct_getnorm(int compno) { + return mct_norms[compno]; +} + +/* */ +/* Foward irreversible MCT. */ +/* */ +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; + } +} + +/* */ +/* Inverse irreversible MCT. */ +/* */ +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; + } +} + +/* */ +/* Get norm of basis function of irreversible MCT. */ +/* */ +double mct_getnorm_real(int compno) { + return mct_norms_real[compno]; +} diff --git a/libopenjpeg/mct.h b/libopenjpeg/mct.h new file mode 100644 index 00000000..906d0db8 --- /dev/null +++ b/libopenjpeg/mct.h @@ -0,0 +1,97 @@ +/* + * 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 */ diff --git a/libopenjpeg/mqc.c b/libopenjpeg/mqc.c new file mode 100644 index 00000000..223cf9f3 --- /dev/null +++ b/libopenjpeg/mqc.c @@ -0,0 +1,541 @@ +/* + * 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); + +/*@}*/ + +/*@}*/ + +/* */ +/* This array defines all the possible states for a context. */ +/* */ +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; + + /* */ + 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) { + /* */ + 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)]; +} + + diff --git a/libopenjpeg/mqc.h b/libopenjpeg/mqc.h new file mode 100644 index 00000000..047fdc34 --- /dev/null +++ b/libopenjpeg/mqc.h @@ -0,0 +1,196 @@ +/* + * 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. +

Not fully implemented and tested !!

+@param mqc MQC handle +*/ +void mqc_bypass_init_enc(opj_mqc_t *mqc); +/** +BYPASS mode switch, coding operation. +JPEG 2000 p 505. +

Not fully implemented and tested !!

+@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 +

Not fully implemented and tested !!

+@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 */ diff --git a/libopenjpeg/openjpeg.c b/libopenjpeg/openjpeg.c new file mode 100644 index 00000000..5c6cee7b --- /dev/null +++ b/libopenjpeg/openjpeg.c @@ -0,0 +1,264 @@ +/* + * 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 +#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; +} + + diff --git a/libopenjpeg/openjpeg.h b/libopenjpeg/openjpeg.h new file mode 100644 index 00000000..5961dabf --- /dev/null +++ b/libopenjpeg/openjpeg.h @@ -0,0 +1,628 @@ + /* + * 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 +#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 +
    +
  • Error messages +
  • Warning messages +
  • Debugging messages +
+*/ +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 : +
    +
  • Lossless +
  • 1 tile +
  • Size of precinct : 2^15 x 2^15 (means 1 precinct) +
  • Size of code-block : 64 x 64 +
  • Number of resolutions: 6 +
  • No SOP marker in the codestream +
  • No EPH marker in the codestream +
  • No sub-sampling in x or y direction +
  • No mode switch activated +
  • Progression order: LRCP +
  • No index file +
  • No ROI upshifted +
  • No offset of the origin of the image +
  • No offset of the origin of the tiles +
  • Reversible DWT 5-3 +
+@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 */ diff --git a/libopenjpeg/opj_includes.h b/libopenjpeg/opj_includes.h new file mode 100644 index 00000000..5cf64ba7 --- /dev/null +++ b/libopenjpeg/opj_includes.h @@ -0,0 +1,97 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include +#include + +/* + ========================================================== + 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() */ +#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 */ diff --git a/libopenjpeg/pi.c b/libopenjpeg/pi.c new file mode 100644 index 00000000..efcc4c4c --- /dev/null +++ b/libopenjpeg/pi.c @@ -0,0 +1,560 @@ +/* + * 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; +} + diff --git a/libopenjpeg/pi.h b/libopenjpeg/pi.h new file mode 100644 index 00000000..569da173 --- /dev/null +++ b/libopenjpeg/pi.h @@ -0,0 +1,130 @@ +/* + * 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 */ diff --git a/libopenjpeg/raw.c b/libopenjpeg/raw.c new file mode 100644 index 00000000..a008be19 --- /dev/null +++ b/libopenjpeg/raw.c @@ -0,0 +1,86 @@ +/* + * 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; +} + diff --git a/libopenjpeg/raw.h b/libopenjpeg/raw.h new file mode 100644 index 00000000..f18c3ceb --- /dev/null +++ b/libopenjpeg/raw.h @@ -0,0 +1,99 @@ +/* + * 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 */ diff --git a/libopenjpeg/t1.c b/libopenjpeg/t1.c new file mode 100644 index 00000000..210a6969 --- /dev/null +++ b/libopenjpeg/t1.c @@ -0,0 +1,1091 @@ +/* + * 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 T1 T1 - Implementation of the tier-1 coding */ +/*@{*/ + +/** @name Local static functions */ +/*@{*/ + +static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient); +static int t1_getctxno_sc(opj_t1_t *t1, int f); +static int t1_getctxno_mag(opj_t1_t *t1, int f); +static int t1_getspb(opj_t1_t *t1, int f); +static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos); +static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos); +static void t1_updateflags(int *fp, int s); +/** +Encode significant pass +*/ +static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc); +/** +Decode significant pass +*/ +static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc); +/** +Encode significant pass +*/ +static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty); +/** +Decode significant pass +*/ +static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty); +/** +Encode refinement pass +*/ +static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc); +/** +Decode refinement pass +*/ +static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc); +/** +Encode refinement pass +*/ +static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty); +/** +Decode refinement pass +*/ +static void t1_dec_refpass(opj_t1_t *t1, int w, int h, int bpno, char type, int cblksty); +/** +Encode clean-up pass +*/ +static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, int partial, int vsc); +/** +Decode clean-up pass +*/ +static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc); +/** +Encode clean-up pass +*/ +static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, int cblksty); +/** +Decode clean-up pass +*/ +static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int cblksty); +static double t1_getwmsedec(int nmsedec, int compno, int level, int orient, int bpno, int qmfbid, double stepsize, int numcomps); +/** +Encode 1 code-block +@param t1 T1 handle +@param cblk Code-block coding parameters +@param orient +@param compno Component number +@param level +@param qmfbid +@param stepsize +@param cblksty Code-block style +@param numcomps +@param tile +*/ +static void t1_encode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int compno, int level, int qmfbid, double stepsize, int cblksty, int numcomps, opj_tcd_tile_t * tile); +/** +Decode 1 code-block +@param t1 T1 handle +@param cblk Code-block coding parameters +@param orient +@param roishift Region of interest shifting value +@param cblksty Code-block style +*/ +static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty); +static int t1_init_ctxno_zc(int f, int orient); +static int t1_init_ctxno_sc(int f); +static int t1_init_ctxno_mag(int f); +static int t1_init_spb(int f); +/** +Initialize the look-up tables of the Tier-1 coder/decoder +@param t1 T1 handle +*/ +static void t1_init_luts(opj_t1_t *t1); + +/*@}*/ + +/*@}*/ + +/* ----------------------------------------------------------------------- */ + +static int t1_getctxno_zc(opj_t1_t *t1, int f, int orient) { + return t1->lut_ctxno_zc[(orient << 8) | (f & T1_SIG_OTH)]; +} + +static int t1_getctxno_sc(opj_t1_t *t1, int f) { + return t1->lut_ctxno_sc[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; +} + +static int t1_getctxno_mag(opj_t1_t *t1, int f) { + return t1->lut_ctxno_mag[(f & T1_SIG_OTH) | (((f & T1_REFINE) != 0) << 11)]; +} + +static int t1_getspb(opj_t1_t *t1, int f) { + return t1->lut_spb[(f & (T1_SIG_PRIM | T1_SGN)) >> 4]; +} + +static int t1_getnmsedec_sig(opj_t1_t *t1, int x, int bitpos) { + if (bitpos > T1_NMSEDEC_FRACBITS) { + return t1->lut_nmsedec_sig[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; + } + + return t1->lut_nmsedec_sig0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; +} + +static int t1_getnmsedec_ref(opj_t1_t *t1, int x, int bitpos) { + if (bitpos > T1_NMSEDEC_FRACBITS) { + return t1->lut_nmsedec_ref[(x >> (bitpos - T1_NMSEDEC_FRACBITS)) & ((1 << T1_NMSEDEC_BITS) - 1)]; + } + + return t1->lut_nmsedec_ref0[x & ((1 << T1_NMSEDEC_BITS) - 1)]; +} + +static void t1_updateflags(int *fp, int s) { + int *np = fp - (T1_MAXCBLKW + 2); + int *sp = fp + (T1_MAXCBLKW + 2); + np[-1] |= T1_SIG_SE; + np[1] |= T1_SIG_SW; + sp[-1] |= T1_SIG_NE; + sp[1] |= T1_SIG_NW; + *np |= T1_SIG_S; + *sp |= T1_SIG_N; + fp[-1] |= T1_SIG_E; + fp[1] |= T1_SIG_W; + if (s) { + *np |= T1_SGN_S; + *sp |= T1_SGN_N; + fp[-1] |= T1_SGN_E; + fp[1] |= T1_SGN_W; + } +} + +static void t1_enc_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, char type, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { + v = int_abs(*dp) & one ? 1 : 0; + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + mqc_encode(mqc, v); + } + if (v) { + v = *dp < 0 ? 1 : 0; + *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + mqc_encode(mqc, v ^ t1_getspb(t1, flag)); + } + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + *fp |= T1_VISIT; + } +} + +static void t1_dec_sigpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, char type, int vsc) { + int v, flag; + + opj_raw_t *raw = t1->raw; /* RAW component */ + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & T1_SIG_OTH) && !(flag & (T1_SIG | T1_VISIT))) { + if (type == T1_TYPE_RAW) { + if (raw_decode(raw)) { + v = raw_decode(raw); /* ESSAI */ + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } else { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + if (mqc_decode(mqc)) { + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = mqc_decode(mqc) ^ t1_getspb(t1, flag); + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp |= T1_VISIT; + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, char type, int cblksty) { + int i, j, k, one, vsc; + *nmsedec = 0; + one = 1 << (bpno + T1_NMSEDEC_FRACBITS); + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, type, vsc); + } + } + } +} + +static void t1_dec_sigpass(opj_t1_t *t1, int w, int h, int bpno, int orient, char type, int cblksty) { + int i, j, k, one, half, oneplushalf, vsc; + one = 1 << bpno; + half = one >> 1; + oneplushalf = one | half; + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_sigpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, oneplushalf, type, vsc); + } + } + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_refpass_step(opj_t1_t *t1, int *fp, int *dp, int bpno, int one, int *nmsedec, char type, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { + *nmsedec += t1_getnmsedec_ref(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + v = int_abs(*dp) & one ? 1 : 0; + if (type == T1_TYPE_RAW) { /* BYPASS/LAZY MODE */ + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ + mqc_bypass_enc(mqc, v); + } else { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); + mqc_encode(mqc, v); + } + *fp |= T1_REFINE; + } +} + +static void t1_dec_refpass_step(opj_t1_t *t1, int *fp, int *dp, int poshalf, int neghalf, char type, int vsc) { + int v, t, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + opj_raw_t *raw = t1->raw; /* RAW component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if ((flag & (T1_SIG | T1_VISIT)) == T1_SIG) { + if (type == T1_TYPE_RAW) { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); /* ESSAI */ + v = raw_decode(raw); + } else { + mqc_setcurctx(mqc, t1_getctxno_mag(t1, flag)); + v = mqc_decode(mqc); + } + t = v ? poshalf : neghalf; + *dp += *dp < 0 ? -t : t; + *fp |= T1_REFINE; + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_refpass(opj_t1_t *t1, int w, int h, int bpno, int *nmsedec, char type, int cblksty) { + int i, j, k, one, vsc; + *nmsedec = 0; + one = 1 << (bpno + T1_NMSEDEC_FRACBITS); + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], bpno, one, nmsedec, type, vsc); + } + } + } +} + +static void t1_dec_refpass(opj_t1_t *t1, int w, int h, int bpno, char type, int cblksty) { + int i, j, k, one, poshalf, neghalf; + int vsc; + one = 1 << bpno; + poshalf = one >> 1; + neghalf = bpno > 0 ? -poshalf : -1; + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + for (j = k; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_refpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], poshalf, neghalf, type, vsc); + } + } + } +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int bpno, int one, int *nmsedec, int partial, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if (partial) { + goto LABEL_PARTIAL; + } + if (!(*fp & (T1_SIG | T1_VISIT))) { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + v = int_abs(*dp) & one ? 1 : 0; + mqc_encode(mqc, v); + if (v) { +LABEL_PARTIAL: + *nmsedec += t1_getnmsedec_sig(t1, int_abs(*dp), bpno + T1_NMSEDEC_FRACBITS); + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = *dp < 0 ? 1 : 0; + mqc_encode(mqc, v ^ t1_getspb(t1, flag)); + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp &= ~T1_VISIT; +} + +static void t1_dec_clnpass_step(opj_t1_t *t1, int *fp, int *dp, int orient, int oneplushalf, int partial, int vsc) { + int v, flag; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + flag = vsc ? ((*fp) & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) : (*fp); + if (partial) { + goto LABEL_PARTIAL; + } + if (!(flag & (T1_SIG | T1_VISIT))) { + mqc_setcurctx(mqc, t1_getctxno_zc(t1, flag, orient)); + if (mqc_decode(mqc)) { +LABEL_PARTIAL: + mqc_setcurctx(mqc, t1_getctxno_sc(t1, flag)); + v = mqc_decode(mqc) ^ t1_getspb(t1, flag); + *dp = v ? -oneplushalf : oneplushalf; + t1_updateflags(fp, v); + *fp |= T1_SIG; + } + } + *fp &= ~T1_VISIT; +} /* VSC and BYPASS by Antonin */ + +static void t1_enc_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int *nmsedec, int cblksty) { + int i, j, k, one, agg, runlen, vsc; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + *nmsedec = 0; + one = 1 << (bpno + T1_NMSEDEC_FRACBITS); + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + if (k + 3 < h) { + if (cblksty & J2K_CCP_CBLKSTY_VSC) { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || (t1->flags[1 + k + 3][1 + i] + & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH)); + } else { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 3][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH)); + } + } else { + agg = 0; + } + if (agg) { + for (runlen = 0; runlen < 4; runlen++) { + if (int_abs(t1->data[k + runlen][i]) & one) + break; + } + mqc_setcurctx(mqc, T1_CTXNO_AGG); + mqc_encode(mqc, runlen != 4); + if (runlen == 4) { + continue; + } + mqc_setcurctx(mqc, T1_CTXNO_UNI); + mqc_encode(mqc, runlen >> 1); + mqc_encode(mqc, runlen & 1); + } else { + runlen = 0; + } + for (j = k + runlen; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_enc_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, bpno, one, nmsedec, agg && (j == k + runlen), vsc); + } + } + } +} + +static void t1_dec_clnpass(opj_t1_t *t1, int w, int h, int bpno, int orient, int cblksty) { + int i, j, k, one, half, oneplushalf, agg, runlen, vsc; + int segsym = cblksty & J2K_CCP_CBLKSTY_SEGSYM; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + one = 1 << bpno; + half = one >> 1; + oneplushalf = one | half; + for (k = 0; k < h; k += 4) { + for (i = 0; i < w; i++) { + if (k + 3 < h) { + if (cblksty & J2K_CCP_CBLKSTY_VSC) { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || (t1->flags[1 + k + 3][1 + i] + & (~(T1_SIG_S | T1_SIG_SE | T1_SIG_SW | T1_SGN_S))) & (T1_SIG | T1_VISIT | T1_SIG_OTH)); + } else { + agg = !(t1->flags[1 + k][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 1][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 2][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH) + || t1->flags[1 + k + 3][1 + i] & (T1_SIG | T1_VISIT | T1_SIG_OTH)); + } + } else { + agg = 0; + } + if (agg) { + mqc_setcurctx(mqc, T1_CTXNO_AGG); + if (!mqc_decode(mqc)) { + continue; + } + mqc_setcurctx(mqc, T1_CTXNO_UNI); + runlen = mqc_decode(mqc); + runlen = (runlen << 1) | mqc_decode(mqc); + } else { + runlen = 0; + } + for (j = k + runlen; j < k + 4 && j < h; j++) { + vsc = ((cblksty & J2K_CCP_CBLKSTY_VSC) && (j == k + 3 || j == h - 1)) ? 1 : 0; + t1_dec_clnpass_step(t1, &t1->flags[1 + j][1 + i], &t1->data[j][i], orient, oneplushalf, agg && (j == k + runlen), vsc); + } + } + } + if (segsym) { + int v = 0; + mqc_setcurctx(mqc, T1_CTXNO_UNI); + v = mqc_decode(mqc); + v = (v << 1) | mqc_decode(mqc); + v = (v << 1) | mqc_decode(mqc); + v = (v << 1) | mqc_decode(mqc); + /* + if (v!=0xa) { + opj_event_msg(t1->cinfo, EVT_WARNING, "Bad segmentation symbol %x\n", v); + } + */ + } +} /* VSC and BYPASS by Antonin */ + + +/** mod fixed_quality */ +static double t1_getwmsedec(int nmsedec, int compno, int level, int orient, int bpno, int qmfbid, double stepsize, int numcomps) { + double w1, w2, wmsedec; + if (qmfbid == 1) { + w1 = (numcomps > 1) ? mct_getnorm(compno) : 1; + w2 = dwt_getnorm(level, orient); + } else { /* if (qmfbid == 0) */ + w1 = (numcomps > 1) ? mct_getnorm_real(compno) : 1; + w2 = dwt_getnorm_real(level, orient); + } + wmsedec = w1 * w2 * stepsize * (1 << bpno); + wmsedec *= wmsedec * nmsedec / 8192.0; + + return wmsedec; +} + +/** mod fixed_quality */ +static void t1_encode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int compno, int level, int qmfbid, double stepsize, int cblksty, int numcomps, opj_tcd_tile_t * tile) { + int i, j; + int w, h; + int passno; + int bpno, passtype; + int max; + int nmsedec = 0; + double cumwmsedec = 0; + char type = T1_TYPE_MQ; + + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + w = cblk->x1 - cblk->x0; + h = cblk->y1 - cblk->y0; + + max = 0; + for (j = 0; j < h; j++) { + for (i = 0; i < w; i++) { + max = int_max(max, int_abs(t1->data[j][i])); + } + } + + cblk->numbps = max ? (int_floorlog2(max) + 1) - T1_NMSEDEC_FRACBITS : 0; + + /* Changed by Dmitry Kolyadin */ + for (i = 0; i <= w; i++) { + for (j = 0; j <= h; j++) { + t1->flags[j][i] = 0; + } + } + + bpno = cblk->numbps - 1; + passtype = 2; + + mqc_resetstates(mqc); + mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); + mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); + mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); + mqc_init_enc(mqc, cblk->data); + + for (passno = 0; bpno >= 0; passno++) { + opj_tcd_pass_t *pass = &cblk->passes[passno]; + int correction = 3; + type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; + + switch (passtype) { + case 0: + t1_enc_sigpass(t1, w, h, bpno, orient, &nmsedec, type, cblksty); + break; + case 1: + t1_enc_refpass(t1, w, h, bpno, &nmsedec, type, cblksty); + break; + case 2: + t1_enc_clnpass(t1, w, h, bpno, orient, &nmsedec, cblksty); + /* code switch SEGMARK (i.e. SEGSYM) */ + if (cblksty & J2K_CCP_CBLKSTY_SEGSYM) + mqc_segmark_enc(mqc); + break; + } + + /* fixed_quality */ + cumwmsedec += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps); + tile->distotile += t1_getwmsedec(nmsedec, compno, level, orient, bpno, qmfbid, stepsize, numcomps); + + /* Code switch "RESTART" (i.e. TERMALL) */ + if ((cblksty & J2K_CCP_CBLKSTY_TERMALL) && !((passtype == 2) && (bpno - 1 < 0))) { + if (type == T1_TYPE_RAW) { + mqc_flush(mqc); + correction = 1; + /* correction = mqc_bypass_flush_enc(); */ + } else { /* correction = mqc_restart_enc(); */ + mqc_flush(mqc); + correction = 1; + } + pass->term = 1; + } else { + if (((bpno < (cblk->numbps - 4) && (passtype > 0)) + || ((bpno == (cblk->numbps - 4)) && (passtype == 2))) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) { + if (type == T1_TYPE_RAW) { + mqc_flush(mqc); + correction = 1; + /* correction = mqc_bypass_flush_enc(); */ + } else { /* correction = mqc_restart_enc(); */ + mqc_flush(mqc); + correction = 1; + } + pass->term = 1; + } else { + pass->term = 0; + } + } + + if (++passtype == 3) { + passtype = 0; + bpno--; + } + + if (pass->term && bpno > 0) { + type = ((bpno < (cblk->numbps - 4)) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; + if (type == T1_TYPE_RAW) + mqc_bypass_init_enc(mqc); + else + mqc_restart_init_enc(mqc); + } + + pass->distortiondec = cumwmsedec; + pass->rate = mqc_numbytes(mqc) + correction; /* FIXME */ + pass->len = pass->rate - (passno == 0 ? 0 : cblk->passes[passno - 1].rate); + + /* Code-switch "RESET" */ + if (cblksty & J2K_CCP_CBLKSTY_RESET) + mqc_reset_enc(mqc); + } + + /* Code switch "ERTERM" (i.e. PTERM) */ + if (cblksty & J2K_CCP_CBLKSTY_PTERM) + mqc_erterm_enc(mqc); + else /* Default coding */ if (!(cblksty & J2K_CCP_CBLKSTY_LAZY)) + mqc_flush(mqc); + + cblk->totalpasses = passno; +} + +static void t1_decode_cblk(opj_t1_t *t1, opj_tcd_cblk_t * cblk, int orient, int roishift, int cblksty) { + int i, j, w, h; + int bpno, passtype; + int segno, passno; + char type = T1_TYPE_MQ; /* BYPASS mode */ + + opj_raw_t *raw = t1->raw; /* RAW component */ + opj_mqc_t *mqc = t1->mqc; /* MQC component */ + + w = cblk->x1 - cblk->x0; + h = cblk->y1 - cblk->y0; + + /* Changed by Dmitry Kolyadin */ + for (j = 0; j <= h; j++) { + for (i = 0; i <= w; i++) { + t1->flags[j][i] = 0; + } + } + + /* Changed by Dmitry Kolyadin */ + for (i = 0; i < w; i++) { + for (j = 0; j < h; j++){ + t1->data[j][i] = 0; + } + } + + bpno = roishift + cblk->numbps - 1; + passtype = 2; + + mqc_resetstates(mqc); + mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); + mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); + mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); + + for (segno = 0; segno < cblk->numsegs; segno++) { + opj_tcd_seg_t *seg = &cblk->segs[segno]; + + /* BYPASS mode */ + type = ((bpno <= (cblk->numbps - 1) - 4) && (passtype < 2) && (cblksty & J2K_CCP_CBLKSTY_LAZY)) ? T1_TYPE_RAW : T1_TYPE_MQ; + if (type == T1_TYPE_RAW) { + raw_init_dec(raw, seg->data, seg->len); + } else { + mqc_init_dec(mqc, seg->data, seg->len); + } + + for (passno = 0; passno < seg->numpasses; passno++) { + switch (passtype) { + case 0: + t1_dec_sigpass(t1, w, h, bpno+1, orient, type, cblksty); + break; + case 1: + t1_dec_refpass(t1, w, h, bpno+1, type, cblksty); + break; + case 2: + t1_dec_clnpass(t1, w, h, bpno+1, orient, cblksty); + break; + } + + if ((cblksty & J2K_CCP_CBLKSTY_RESET) && type == T1_TYPE_MQ) { + mqc_resetstates(mqc); + mqc_setstate(mqc, T1_CTXNO_UNI, 0, 46); + mqc_setstate(mqc, T1_CTXNO_AGG, 0, 3); + mqc_setstate(mqc, T1_CTXNO_ZC, 0, 4); + } + if (++passtype == 3) { + passtype = 0; + bpno--; + } + } + } +} + +static int t1_init_ctxno_zc(int f, int orient) { + int h, v, d, n, t, hv; + n = 0; + h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0); + v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0); + d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0); + + switch (orient) { + case 2: + t = h; + h = v; + v = t; + case 0: + case 1: + if (!h) { + if (!v) { + if (!d) + n = 0; + else if (d == 1) + n = 1; + else + n = 2; + } else if (v == 1) { + n = 3; + } else { + n = 4; + } + } else if (h == 1) { + if (!v) { + if (!d) + n = 5; + else + n = 6; + } else { + n = 7; + } + } else + n = 8; + break; + case 3: + hv = h + v; + if (!d) { + if (!hv) { + n = 0; + } else if (hv == 1) { + n = 1; + } else { + n = 2; + } + } else if (d == 1) { + if (!hv) { + n = 3; + } else if (hv == 1) { + n = 4; + } else { + n = 5; + } + } else if (d == 2) { + if (!hv) { + n = 6; + } else { + n = 7; + } + } else { + n = 8; + } + break; + } + + return (T1_CTXNO_ZC + n); +} + +static int t1_init_ctxno_sc(int f) { + int hc, vc, n; + n = 0; + + hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (hc < 0) { + hc = -hc; + vc = -vc; + } + if (!hc) { + if (vc == -1) + n = 1; + else if (!vc) + n = 0; + else + n = 1; + } else if (hc == 1) { + if (vc == -1) + n = 2; + else if (!vc) + n = 3; + else + n = 4; + } + + return (T1_CTXNO_SC + n); +} + +static int t1_init_ctxno_mag(int f) { + int n; + if (!(f & T1_REFINE)) + n = (f & (T1_SIG_OTH)) ? 1 : 0; + else + n = 2; + + return (T1_CTXNO_MAG + n); +} + +static int t1_init_spb(int f) { + int hc, vc, n; + + hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == + T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), + 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == + (T1_SIG_E | T1_SGN_E)) + + ((f & (T1_SIG_W | T1_SGN_W)) == + (T1_SIG_W | T1_SGN_W)), 1); + + vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == + T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), + 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == + (T1_SIG_N | T1_SGN_N)) + + ((f & (T1_SIG_S | T1_SGN_S)) == + (T1_SIG_S | T1_SGN_S)), 1); + + if (!hc && !vc) + n = 0; + else + n = (!(hc > 0 || (!hc && vc > 0))); + + return n; +} + +static void t1_init_luts(opj_t1_t *t1) { + int i, j; + double u, v, t; + for (j = 0; j < 4; j++) { + for (i = 0; i < 256; ++i) { + t1->lut_ctxno_zc[(j << 8) | i] = t1_init_ctxno_zc(i, j); + } + } + for (i = 0; i < 256; i++) { + t1->lut_ctxno_sc[i] = t1_init_ctxno_sc(i << 4); + } + for (j = 0; j < 2; j++) { + for (i = 0; i < 2048; ++i) { + t1->lut_ctxno_mag[(j << 11) + i] = t1_init_ctxno_mag((j ? T1_REFINE : 0) | i); + } + } + for (i = 0; i < 256; ++i) { + t1->lut_spb[i] = t1_init_spb(i << 4); + } + /* FIXME FIXME FIXME */ + /* fprintf(stdout,"nmsedec luts:\n"); */ + for (i = 0; i < (1 << T1_NMSEDEC_BITS); i++) { + t = i / pow(2, T1_NMSEDEC_FRACBITS); + u = t; + v = t - 1.5; + t1->lut_nmsedec_sig[i] = + int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + t1->lut_nmsedec_sig0[i] = + int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + u = t - 1.0; + if (i & (1 << (T1_NMSEDEC_BITS - 1))) { + v = t - 1.5; + } else { + v = t - 0.5; + } + t1->lut_nmsedec_ref[i] = + int_max(0, + (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + t1->lut_nmsedec_ref0[i] = + int_max(0, + (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); + } +} + +/* ----------------------------------------------------------------------- */ + +opj_t1_t* t1_create(opj_common_ptr cinfo) { + opj_t1_t *t1 = (opj_t1_t*)opj_malloc(sizeof(opj_t1_t)); + if(t1) { + t1->cinfo = cinfo; + /* create MQC and RAW handles */ + t1->mqc = mqc_create(); + t1->raw = raw_create(); + /* initialize the look-up tables of the Tier-1 coder/decoder */ + t1_init_luts(t1); + } + return t1; +} + +void t1_destroy(opj_t1_t *t1) { + if(t1) { + /* destroy MQC and RAW handles */ + mqc_destroy(t1->mqc); + raw_destroy(t1->raw); + opj_free(t1); + } +} + +void t1_encode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp) { + int compno, resno, bandno, precno, cblkno; + int x, y, i, j, orient; + + tile->distotile = 0; /* fixed_quality */ + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + + for (precno = 0; precno < res->pw * res->ph; precno++) { + 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]; + + if (band->bandno == 0) { + x = cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 1) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 2) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } else { /* if (band->bandno == 3) */ + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } + + if (tcp->tccps[compno].qmfbid == 1) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + t1->data[j][i] = + tilec->data[(x + i) + (y + j) * (tilec->x1 - tilec->x0)] << T1_NMSEDEC_FRACBITS; + } + } + } else if (tcp->tccps[compno].qmfbid == 0) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + t1->data[j][i] = + fix_mul( + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)], + 8192 * 8192 / ((int) floor(band->stepsize * 8192))) >> (13 - T1_NMSEDEC_FRACBITS); + } + } + } + orient = band->bandno; /* FIXME */ + if (orient == 2) { + orient = 1; + } else if (orient == 1) { + orient = 2; + } + + t1_encode_cblk(t1, cblk, orient, compno, tilec->numresolutions - 1 - resno, tcp->tccps[compno].qmfbid, band->stepsize, tcp->tccps[compno].cblksty, tile->numcomps, tile); + + } /* cblkno */ + } /* precno */ + } /* bandno */ + } /* resno */ + } /* compno */ +} + +void t1_decode_cblks(opj_t1_t *t1, opj_tcd_tile_t *tile, opj_tcp_t *tcp) { + int compno, resno, bandno, precno, cblkno; + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + + for (precno = 0; precno < res->pw * res->ph; precno++) { + opj_tcd_precinct_t *prc = &band->precincts[precno]; + + for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) { + int x, y, i, j, orient; + opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; + + orient = band->bandno; /* FIXME */ + if (orient == 2) { + orient = 1; + } else if (orient == 1) { + orient = 2; + } + + t1_decode_cblk(t1, cblk, orient, tcp->tccps[compno].roishift, tcp->tccps[compno].cblksty); + + if (band->bandno == 0) { + x = cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 1) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = cblk->y0 - band->y0; + } else if (band->bandno == 2) { + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } else { /* if (band->bandno == 3) */ + opj_tcd_resolution_t *pres = &tilec->resolutions[resno - 1]; + x = pres->x1 - pres->x0 + cblk->x0 - band->x0; + y = pres->y1 - pres->y0 + cblk->y0 - band->y0; + } + + if (tcp->tccps[compno].roishift) { + int thresh, val, mag; + thresh = 1 << tcp->tccps[compno].roishift; + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + val = t1->data[j][i]; + mag = int_abs(val); + if (mag >= thresh) { + mag >>= tcp->tccps[compno].roishift; + t1->data[j][i] = val < 0 ? -mag : mag; + } + } + } + } + + if (tcp->tccps[compno].qmfbid == 1) { + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + int tmp = t1->data[j][i]; + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = tmp/2; + } + } + } else { /* if (tcp->tccps[compno].qmfbid == 0) */ + for (j = 0; j < cblk->y1 - cblk->y0; j++) { + for (i = 0; i < cblk->x1 - cblk->x0; i++) { + double tmp = (double)(t1->data[j][i] * band->stepsize * 4096.0); + if (t1->data[j][i] >> 1 == 0) { + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = 0; + } else { + int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2); + tilec->data[x + i + (y + j) * (tilec->x1 - tilec->x0)] = ((tmp<0)?-tmp2:tmp2); + } + } + } + } + } /* cblkno */ + } /* precno */ + } /* bandno */ + } /* resno */ + } /* compno */ +} + diff --git a/libopenjpeg/t1.h b/libopenjpeg/t1.h new file mode 100644 index 00000000..a08d2e2d --- /dev/null +++ b/libopenjpeg/t1.h @@ -0,0 +1,150 @@ +/* + * 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 */ diff --git a/libopenjpeg/t2.c b/libopenjpeg/t2.c new file mode 100644 index 00000000..dea2bb9e --- /dev/null +++ b/libopenjpeg/t2.c @@ -0,0 +1,672 @@ +/* + * 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 */ + + /* */ + 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; + } + /* */ + + 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); + + /* */ + 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; + } + /* */ + + /* 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; + } + } + /* */ + } + } + + 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); + } +} + diff --git a/libopenjpeg/t2.h b/libopenjpeg/t2.h new file mode 100644 index 00000000..42c9804a --- /dev/null +++ b/libopenjpeg/t2.h @@ -0,0 +1,99 @@ +/* + * 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 */ diff --git a/libopenjpeg/tcd.c b/libopenjpeg/tcd.c new file mode 100644 index 00000000..fa7154ae --- /dev/null +++ b/libopenjpeg/tcd.c @@ -0,0 +1,1383 @@ +/* + * 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" + +void tcd_dump(FILE *fd, opj_tcd_t *tcd, opj_tcd_image_t * img) { + int tileno, compno, resno, bandno, precno, cblkno; + + fprintf(fd, "image {\n"); + fprintf(fd, " tw=%d, th=%d x0=%d x1=%d y0=%d y1=%d\n", + img->tw, img->th, tcd->image->x0, tcd->image->x1, tcd->image->y0, tcd->image->y1); + + for (tileno = 0; tileno < img->th * img->tw; tileno++) { + opj_tcd_tile_t *tile = &tcd->tcd_image->tiles[tileno]; + fprintf(fd, " tile {\n"); + fprintf(fd, " x0=%d, y0=%d, x1=%d, y1=%d, numcomps=%d\n", + tile->x0, tile->y0, tile->x1, tile->y1, tile->numcomps); + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + fprintf(fd, " tilec {\n"); + fprintf(fd, + " x0=%d, y0=%d, x1=%d, y1=%d, numresolutions=%d\n", + tilec->x0, tilec->y0, tilec->x1, tilec->y1, tilec->numresolutions); + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + fprintf(fd, "\n res {\n"); + fprintf(fd, + " x0=%d, y0=%d, x1=%d, y1=%d, pw=%d, ph=%d, numbands=%d\n", + res->x0, res->y0, res->x1, res->y1, res->pw, res->ph, res->numbands); + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + fprintf(fd, " band {\n"); + fprintf(fd, + " x0=%d, y0=%d, x1=%d, y1=%d, stepsize=%f, numbps=%d\n", + band->x0, band->y0, band->x1, band->y1, band->stepsize, band->numbps); + for (precno = 0; precno < res->pw * res->ph; precno++) { + opj_tcd_precinct_t *prec = &band->precincts[precno]; + fprintf(fd, " prec {\n"); + fprintf(fd, + " x0=%d, y0=%d, x1=%d, y1=%d, cw=%d, ch=%d\n", + prec->x0, prec->y0, prec->x1, prec->y1, prec->cw, prec->ch); + for (cblkno = 0; cblkno < prec->cw * prec->ch; cblkno++) { + opj_tcd_cblk_t *cblk = &prec->cblks[cblkno]; + fprintf(fd, " cblk {\n"); + fprintf(fd, + " x0=%d, y0=%d, x1=%d, y1=%d\n", + cblk->x0, cblk->y0, cblk->x1, cblk->y1); + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, " }\n"); + } + fprintf(fd, "}\n"); +} + +/* ----------------------------------------------------------------------- */ + +/** +Create a new TCD handle +*/ +opj_tcd_t* tcd_create(opj_common_ptr cinfo) { + /* create the tcd structure */ + opj_tcd_t *tcd = (opj_tcd_t*)opj_malloc(sizeof(opj_tcd_t)); + if(!tcd) return NULL; + tcd->cinfo = cinfo; + tcd->tcd_image = (opj_tcd_image_t*)opj_malloc(sizeof(opj_tcd_image_t)); + if(!tcd->tcd_image) { + opj_free(tcd); + return NULL; + } + + return tcd; +} + +/** +Destroy a previously created TCD handle +*/ +void tcd_destroy(opj_tcd_t *tcd) { + if(tcd) { + opj_free(tcd->tcd_image); + opj_free(tcd); + } +} + +/* ----------------------------------------------------------------------- */ + +void tcd_malloc_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno) { + int tileno, compno, resno, bandno, precno, cblkno; + + tcd->image = image; + tcd->cp = cp; + tcd->tcd_image->tw = cp->tw; + tcd->tcd_image->th = cp->th; + tcd->tcd_image->tiles = (opj_tcd_tile_t *) opj_malloc(sizeof(opj_tcd_tile_t)); + + for (tileno = 0; tileno < 1; tileno++) { + opj_tcp_t *tcp = &cp->tcps[curtileno]; + int j; + + /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + int p = curtileno % cp->tw; /* si numerotation matricielle .. */ + int q = curtileno / cp->tw; /* .. coordonnees de la tile (q,p) q pour ligne et p pour colonne */ + + /* opj_tcd_tile_t *tile=&tcd->tcd_image->tiles[tileno]; */ + opj_tcd_tile_t *tile = tcd->tcd_image->tiles; + + /* 4 borders of the tile rescale on the image if necessary */ + tile->x0 = int_max(cp->tx0 + p * cp->tdx, image->x0); + tile->y0 = int_max(cp->ty0 + q * cp->tdy, image->y0); + tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1); + tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1); + tile->numcomps = image->numcomps; + /* tile->PPT=image->PPT; */ + + /* Modification of the RATE >> */ + for (j = 0; j < tcp->numlayers; j++) { + tcp->rates[j] = tcp->rates[j] ? + ((float) (tile->numcomps + * (tile->x1 - tile->x0) + * (tile->y1 - tile->y0) + * image->comps[0].prec))/ + (tcp->rates[j] * 8 * image->comps[0].dx * image->comps[0].dy) + : 0; + + if (tcp->rates[j]) { + if (j && tcp->rates[j] < tcp->rates[j - 1] + 10) { + tcp->rates[j] = tcp->rates[j - 1] + 20; + } else { + if (!j && tcp->rates[j] < 30) + tcp->rates[j] = 30; + } + } + } + /* << Modification of the RATE */ + + tile->comps = (opj_tcd_tilecomp_t *) opj_malloc(image->numcomps * sizeof(opj_tcd_tilecomp_t)); + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tccp_t *tccp = &tcp->tccps[compno]; + + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + /* border of each tile component (global) */ + tilec->x0 = int_ceildiv(tile->x0, image->comps[compno].dx); + tilec->y0 = int_ceildiv(tile->y0, image->comps[compno].dy); + tilec->x1 = int_ceildiv(tile->x1, image->comps[compno].dx); + tilec->y1 = int_ceildiv(tile->y1, image->comps[compno].dy); + + tilec->data = (int *) opj_malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int)); + tilec->numresolutions = tccp->numresolutions; + + tilec->resolutions = (opj_tcd_resolution_t *) opj_malloc(tilec->numresolutions * sizeof(opj_tcd_resolution_t)); + + for (resno = 0; resno < tilec->numresolutions; resno++) { + int pdx, pdy; + int levelno = tilec->numresolutions - 1 - resno; + int tlprcxstart, tlprcystart, brprcxend, brprcyend; + int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend; + int cbgwidthexpn, cbgheightexpn; + int cblkwidthexpn, cblkheightexpn; + + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + /* border for each resolution level (global) */ + res->x0 = int_ceildivpow2(tilec->x0, levelno); + res->y0 = int_ceildivpow2(tilec->y0, levelno); + res->x1 = int_ceildivpow2(tilec->x1, levelno); + res->y1 = int_ceildivpow2(tilec->y1, levelno); + + res->numbands = resno == 0 ? 1 : 3; + /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */ + if (tccp->csty & J2K_CCP_CSTY_PRT) { + pdx = tccp->prcw[resno]; + pdy = tccp->prch[resno]; + } else { + pdx = 15; + pdy = 15; + } + /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx; + tlprcystart = int_floordivpow2(res->y0, pdy) << pdy; + + brprcxend = int_ceildivpow2(res->x1, pdx) << pdx; + brprcyend = int_ceildivpow2(res->y1, pdy) << pdy; + + res->pw = (brprcxend - tlprcxstart) >> pdx; + res->ph = (brprcyend - tlprcystart) >> pdy; + + if (resno == 0) { + tlcbgxstart = tlprcxstart; + tlcbgystart = tlprcystart; + brcbgxend = brprcxend; + brcbgyend = brprcyend; + cbgwidthexpn = pdx; + cbgheightexpn = pdy; + } else { + tlcbgxstart = int_ceildivpow2(tlprcxstart, 1); + tlcbgystart = int_ceildivpow2(tlprcystart, 1); + brcbgxend = int_ceildivpow2(brprcxend, 1); + brcbgyend = int_ceildivpow2(brprcyend, 1); + cbgwidthexpn = pdx - 1; + cbgheightexpn = pdy - 1; + } + + cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn); + cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn); + + for (bandno = 0; bandno < res->numbands; bandno++) { + int x0b, y0b, i; + int gain, numbps; + opj_stepsize_t *ss = NULL; + + opj_tcd_band_t *band = &res->bands[bandno]; + + band->bandno = resno == 0 ? 0 : bandno + 1; + x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0; + y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0; + + if (band->bandno == 0) { + /* band border (global) */ + band->x0 = int_ceildivpow2(tilec->x0, levelno); + band->y0 = int_ceildivpow2(tilec->y0, levelno); + band->x1 = int_ceildivpow2(tilec->x1, levelno); + band->y1 = int_ceildivpow2(tilec->y1, levelno); + } else { + /* band border (global) */ + band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1); + band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1); + band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1); + band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1); + } + + ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1]; + gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno); + numbps = image->comps[compno].prec + gain; + + band->stepsize = (float)((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn)); + band->numbps = ss->expn + tccp->numgbits - 1; /* WHY -1 ? */ + + band->precincts = (opj_tcd_precinct_t *) opj_malloc(3 * res->pw * res->ph * sizeof(opj_tcd_precinct_t)); + + for (i = 0; i < res->pw * res->ph * 3; i++) { + band->precincts[i].imsbtree = NULL; + band->precincts[i].incltree = NULL; + } + + for (precno = 0; precno < res->pw * res->ph; precno++) { + int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend; + + int cbgxstart = tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn); + int cbgystart = tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn); + int cbgxend = cbgxstart + (1 << cbgwidthexpn); + int cbgyend = cbgystart + (1 << cbgheightexpn); + + opj_tcd_precinct_t *prc = &band->precincts[precno]; + + /* precinct size (global) */ + prc->x0 = int_max(cbgxstart, band->x0); + prc->y0 = int_max(cbgystart, band->y0); + prc->x1 = int_min(cbgxend, band->x1); + prc->y1 = int_min(cbgyend, band->y1); + + tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn; + tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn; + brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn; + brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn; + prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn; + prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn; + + prc->cblks = (opj_tcd_cblk_t *) opj_malloc((prc->cw * prc->ch) * sizeof(opj_tcd_cblk_t)); + prc->incltree = tgt_create(prc->cw, prc->ch); + prc->imsbtree = tgt_create(prc->cw, prc->ch); + + for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) { + int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn); + int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn); + int cblkxend = cblkxstart + (1 << cblkwidthexpn); + int cblkyend = cblkystart + (1 << cblkheightexpn); + + opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; + + /* code-block size (global) */ + cblk->x0 = int_max(cblkxstart, prc->x0); + cblk->y0 = int_max(cblkystart, prc->y0); + cblk->x1 = int_min(cblkxend, prc->x1); + cblk->y1 = int_min(cblkyend, prc->y1); + } + } + } + } + } + } + + /* tcd_dump(stdout, tcd, &tcd->tcd_image); */ +} + +void tcd_free_encode(opj_tcd_t *tcd) { + int tileno, compno, resno, bandno, precno; + + for (tileno = 0; tileno < 1; tileno++) { + opj_tcd_tile_t *tile = tcd->tcd_image->tiles; + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + + for (precno = 0; precno < res->pw * res->ph; precno++) { + opj_tcd_precinct_t *prc = &band->precincts[precno]; + + if (prc->incltree != NULL) { + tgt_destroy(prc->incltree); + prc->incltree = NULL; + } + if (prc->imsbtree != NULL) { + tgt_destroy(prc->imsbtree); + prc->imsbtree = NULL; + } + opj_free(prc->cblks); + prc->cblks = NULL; + } /* for (precno */ + opj_free(band->precincts); + band->precincts = NULL; + } /* for (bandno */ + } /* for (resno */ + opj_free(tilec->resolutions); + tilec->resolutions = NULL; + } /* for (compno */ + opj_free(tile->comps); + tile->comps = NULL; + } /* for (tileno */ + opj_free(tcd->tcd_image->tiles); + tcd->tcd_image->tiles = NULL; +} + +void tcd_init_encode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp, int curtileno) { + int tileno, compno, resno, bandno, precno, cblkno; + + for (tileno = 0; tileno < 1; tileno++) { + opj_tcp_t *tcp = &cp->tcps[curtileno]; + int j; + /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + int p = curtileno % cp->tw; + int q = curtileno / cp->tw; + + opj_tcd_tile_t *tile = tcd->tcd_image->tiles; + + /* 4 borders of the tile rescale on the image if necessary */ + tile->x0 = int_max(cp->tx0 + p * cp->tdx, image->x0); + tile->y0 = int_max(cp->ty0 + q * cp->tdy, image->y0); + tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1); + tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1); + + tile->numcomps = image->numcomps; + /* tile->PPT=image->PPT; */ + + /* Modification of the RATE >> */ + for (j = 0; j < tcp->numlayers; j++) { + tcp->rates[j] = tcp->rates[j] ? + ((float) (tile->numcomps + * (tile->x1 - tile->x0) + * (tile->y1 - tile->y0) + * image->comps[0].prec))/ + (tcp->rates[j] * 8 * image->comps[0].dx * image->comps[0].dy) + : 0; + + if (tcp->rates[j]) { + if (j && tcp->rates[j] < tcp->rates[j - 1] + 10) { + tcp->rates[j] = tcp->rates[j - 1] + 20; + } else { + if (!j && tcp->rates[j] < 30) + tcp->rates[j] = 30; + } + } + } + /* << Modification of the RATE */ + + /* tile->comps=(opj_tcd_tilecomp_t*)opj_realloc(tile->comps,image->numcomps*sizeof(opj_tcd_tilecomp_t)); */ + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tccp_t *tccp = &tcp->tccps[compno]; + + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + /* border of each tile component (global) */ + tilec->x0 = int_ceildiv(tile->x0, image->comps[compno].dx); + tilec->y0 = int_ceildiv(tile->y0, image->comps[compno].dy); + tilec->x1 = int_ceildiv(tile->x1, image->comps[compno].dx); + tilec->y1 = int_ceildiv(tile->y1, image->comps[compno].dy); + + tilec->data = (int *) opj_malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int)); + tilec->numresolutions = tccp->numresolutions; + /* tilec->resolutions=(opj_tcd_resolution_t*)opj_realloc(tilec->resolutions,tilec->numresolutions*sizeof(opj_tcd_resolution_t)); */ + for (resno = 0; resno < tilec->numresolutions; resno++) { + int pdx, pdy; + + int levelno = tilec->numresolutions - 1 - resno; + int tlprcxstart, tlprcystart, brprcxend, brprcyend; + int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend; + int cbgwidthexpn, cbgheightexpn; + int cblkwidthexpn, cblkheightexpn; + + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + /* border for each resolution level (global) */ + res->x0 = int_ceildivpow2(tilec->x0, levelno); + res->y0 = int_ceildivpow2(tilec->y0, levelno); + res->x1 = int_ceildivpow2(tilec->x1, levelno); + res->y1 = int_ceildivpow2(tilec->y1, levelno); + res->numbands = resno == 0 ? 1 : 3; + + /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */ + if (tccp->csty & J2K_CCP_CSTY_PRT) { + pdx = tccp->prcw[resno]; + pdy = tccp->prch[resno]; + } else { + pdx = 15; + pdy = 15; + } + /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx; + tlprcystart = int_floordivpow2(res->y0, pdy) << pdy; + brprcxend = int_ceildivpow2(res->x1, pdx) << pdx; + brprcyend = int_ceildivpow2(res->y1, pdy) << pdy; + + res->pw = (brprcxend - tlprcxstart) >> pdx; + res->ph = (brprcyend - tlprcystart) >> pdy; + + if (resno == 0) { + tlcbgxstart = tlprcxstart; + tlcbgystart = tlprcystart; + brcbgxend = brprcxend; + brcbgyend = brprcyend; + cbgwidthexpn = pdx; + cbgheightexpn = pdy; + } else { + tlcbgxstart = int_ceildivpow2(tlprcxstart, 1); + tlcbgystart = int_ceildivpow2(tlprcystart, 1); + brcbgxend = int_ceildivpow2(brprcxend, 1); + brcbgyend = int_ceildivpow2(brprcyend, 1); + cbgwidthexpn = pdx - 1; + cbgheightexpn = pdy - 1; + } + + cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn); + cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn); + + for (bandno = 0; bandno < res->numbands; bandno++) { + int x0b, y0b; + int gain, numbps; + opj_stepsize_t *ss = NULL; + + opj_tcd_band_t *band = &res->bands[bandno]; + + band->bandno = resno == 0 ? 0 : bandno + 1; + x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0; + y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0; + + if (band->bandno == 0) { + /* band border */ + band->x0 = int_ceildivpow2(tilec->x0, levelno); + band->y0 = int_ceildivpow2(tilec->y0, levelno); + band->x1 = int_ceildivpow2(tilec->x1, levelno); + band->y1 = int_ceildivpow2(tilec->y1, levelno); + } else { + band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1); + band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1); + band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1); + band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1); + } + + ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1]; + gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno); + numbps = image->comps[compno].prec + gain; + band->stepsize = (float)((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn)); + band->numbps = ss->expn + tccp->numgbits - 1; /* WHY -1 ? */ + + for (precno = 0; precno < res->pw * res->ph; precno++) { + int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend; + + int cbgxstart = tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn); + int cbgystart = tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn); + int cbgxend = cbgxstart + (1 << cbgwidthexpn); + int cbgyend = cbgystart + (1 << cbgheightexpn); + + opj_tcd_precinct_t *prc = &band->precincts[precno]; + + /* precinct size (global) */ + prc->x0 = int_max(cbgxstart, band->x0); + prc->y0 = int_max(cbgystart, band->y0); + prc->x1 = int_min(cbgxend, band->x1); + prc->y1 = int_min(cbgyend, band->y1); + + tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn; + tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn; + brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn; + brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn; + prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn; + prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn; + + opj_free(prc->cblks); + prc->cblks = (opj_tcd_cblk_t *) opj_malloc(prc->cw * prc->ch * sizeof(opj_tcd_cblk_t)); + + if (prc->incltree != NULL) { + tgt_destroy(prc->incltree); + } + if (prc->imsbtree != NULL) { + tgt_destroy(prc->imsbtree); + } + + prc->incltree = tgt_create(prc->cw, prc->ch); + prc->imsbtree = tgt_create(prc->cw, prc->ch); + + for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) { + int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn); + int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn); + int cblkxend = cblkxstart + (1 << cblkwidthexpn); + int cblkyend = cblkystart + (1 << cblkheightexpn); + + opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; + + /* code-block size (global) */ + cblk->x0 = int_max(cblkxstart, prc->x0); + cblk->y0 = int_max(cblkystart, prc->y0); + cblk->x1 = int_min(cblkxend, prc->x1); + cblk->y1 = int_min(cblkyend, prc->y1); + } + } /* precno */ + } /* bandno */ + } /* resno */ + } /* compno */ + } /* tileno */ + + /* tcd_dump(stdout, tcd, &tcd->tcd_image); */ +} + +void tcd_malloc_decode(opj_tcd_t *tcd, opj_image_t * image, opj_cp_t * cp) { + int tileno, compno, resno, bandno, precno, cblkno, i, j, p, q; + unsigned int x0 = 0, y0 = 0, x1 = 0, y1 = 0, w, h; + + tcd->image = image; + tcd->cp = cp; + tcd->tcd_image->tw = cp->tw; + tcd->tcd_image->th = cp->th; + tcd->tcd_image->tiles = (opj_tcd_tile_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tcd_tile_t)); + + for (i = 0; i < cp->tileno_size; i++) { + opj_tcp_t *tcp = &(cp->tcps[cp->tileno[i]]); + opj_tcd_tile_t *tile = &(tcd->tcd_image->tiles[cp->tileno[i]]); + + /* cfr p59 ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + tileno = cp->tileno[i]; + p = tileno % cp->tw; /* si numerotation matricielle .. */ + q = tileno / cp->tw; /* .. coordonnees de la tile (q,p) q pour ligne et p pour colonne */ + + /* 4 borders of the tile rescale on the image if necessary */ + tile->x0 = int_max(cp->tx0 + p * cp->tdx, image->x0); + tile->y0 = int_max(cp->ty0 + q * cp->tdy, image->y0); + tile->x1 = int_min(cp->tx0 + (p + 1) * cp->tdx, image->x1); + tile->y1 = int_min(cp->ty0 + (q + 1) * cp->tdy, image->y1); + + tile->numcomps = image->numcomps; + tile->comps = (opj_tcd_tilecomp_t *) opj_malloc(image->numcomps * sizeof(opj_tcd_tilecomp_t)); + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tccp_t *tccp = &tcp->tccps[compno]; + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + + /* border of each tile component (global) */ + tilec->x0 = int_ceildiv(tile->x0, image->comps[compno].dx); + tilec->y0 = int_ceildiv(tile->y0, image->comps[compno].dy); + tilec->x1 = int_ceildiv(tile->x1, image->comps[compno].dx); + tilec->y1 = int_ceildiv(tile->y1, image->comps[compno].dy); + + tilec->data = (int *) opj_malloc((tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0) * sizeof(int)); + tilec->numresolutions = tccp->numresolutions; + tilec->resolutions = (opj_tcd_resolution_t *) opj_malloc(tilec->numresolutions * sizeof(opj_tcd_resolution_t)); + + for (resno = 0; resno < tilec->numresolutions; resno++) { + int pdx, pdy; + int levelno = tilec->numresolutions - 1 - resno; + int tlprcxstart, tlprcystart, brprcxend, brprcyend; + int tlcbgxstart, tlcbgystart, brcbgxend, brcbgyend; + int cbgwidthexpn, cbgheightexpn; + int cblkwidthexpn, cblkheightexpn; + + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + /* border for each resolution level (global) */ + res->x0 = int_ceildivpow2(tilec->x0, levelno); + res->y0 = int_ceildivpow2(tilec->y0, levelno); + res->x1 = int_ceildivpow2(tilec->x1, levelno); + res->y1 = int_ceildivpow2(tilec->y1, levelno); + res->numbands = resno == 0 ? 1 : 3; + + /* p. 35, table A-23, ISO/IEC FDIS154444-1 : 2000 (18 august 2000) */ + if (tccp->csty & J2K_CCP_CSTY_PRT) { + pdx = tccp->prcw[resno]; + pdy = tccp->prch[resno]; + } else { + pdx = 15; + pdy = 15; + } + + /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ + tlprcxstart = int_floordivpow2(res->x0, pdx) << pdx; + tlprcystart = int_floordivpow2(res->y0, pdy) << pdy; + brprcxend = int_ceildivpow2(res->x1, pdx) << pdx; + brprcyend = int_ceildivpow2(res->y1, pdy) << pdy; + + res->pw = (res->x0 == res->x1) ? 0 : ((brprcxend - tlprcxstart) >> pdx); + res->ph = (res->y0 == res->y1) ? 0 : ((brprcyend - tlprcystart) >> pdy); + + if (resno == 0) { + tlcbgxstart = tlprcxstart; + tlcbgystart = tlprcystart; + brcbgxend = brprcxend; + brcbgyend = brprcyend; + cbgwidthexpn = pdx; + cbgheightexpn = pdy; + } else { + tlcbgxstart = int_ceildivpow2(tlprcxstart, 1); + tlcbgystart = int_ceildivpow2(tlprcystart, 1); + brcbgxend = int_ceildivpow2(brprcxend, 1); + brcbgyend = int_ceildivpow2(brprcyend, 1); + cbgwidthexpn = pdx - 1; + cbgheightexpn = pdy - 1; + } + + cblkwidthexpn = int_min(tccp->cblkw, cbgwidthexpn); + cblkheightexpn = int_min(tccp->cblkh, cbgheightexpn); + + for (bandno = 0; bandno < res->numbands; bandno++) { + int x0b, y0b; + int gain, numbps; + opj_stepsize_t *ss = NULL; + + opj_tcd_band_t *band = &res->bands[bandno]; + band->bandno = resno == 0 ? 0 : bandno + 1; + x0b = (band->bandno == 1) || (band->bandno == 3) ? 1 : 0; + y0b = (band->bandno == 2) || (band->bandno == 3) ? 1 : 0; + + if (band->bandno == 0) { + /* band border (global) */ + band->x0 = int_ceildivpow2(tilec->x0, levelno); + band->y0 = int_ceildivpow2(tilec->y0, levelno); + band->x1 = int_ceildivpow2(tilec->x1, levelno); + band->y1 = int_ceildivpow2(tilec->y1, levelno); + } else { + /* band border (global) */ + band->x0 = int_ceildivpow2(tilec->x0 - (1 << levelno) * x0b, levelno + 1); + band->y0 = int_ceildivpow2(tilec->y0 - (1 << levelno) * y0b, levelno + 1); + band->x1 = int_ceildivpow2(tilec->x1 - (1 << levelno) * x0b, levelno + 1); + band->y1 = int_ceildivpow2(tilec->y1 - (1 << levelno) * y0b, levelno + 1); + } + + ss = &tccp->stepsizes[resno == 0 ? 0 : 3 * (resno - 1) + bandno + 1]; + gain = tccp->qmfbid == 0 ? dwt_getgain_real(band->bandno) : dwt_getgain(band->bandno); + numbps = image->comps[compno].prec + gain; + band->stepsize = (float)((1.0 + ss->mant / 2048.0) * pow(2.0, numbps - ss->expn)); + band->numbps = ss->expn + tccp->numgbits - 1; /* WHY -1 ? */ + + band->precincts = (opj_tcd_precinct_t *) opj_malloc(res->pw * res->ph * sizeof(opj_tcd_precinct_t)); + + for (precno = 0; precno < res->pw * res->ph; precno++) { + int tlcblkxstart, tlcblkystart, brcblkxend, brcblkyend; + int cbgxstart = tlcbgxstart + (precno % res->pw) * (1 << cbgwidthexpn); + int cbgystart = tlcbgystart + (precno / res->pw) * (1 << cbgheightexpn); + int cbgxend = cbgxstart + (1 << cbgwidthexpn); + int cbgyend = cbgystart + (1 << cbgheightexpn); + + opj_tcd_precinct_t *prc = &band->precincts[precno]; + /* precinct size (global) */ + prc->x0 = int_max(cbgxstart, band->x0); + prc->y0 = int_max(cbgystart, band->y0); + prc->x1 = int_min(cbgxend, band->x1); + prc->y1 = int_min(cbgyend, band->y1); + + tlcblkxstart = int_floordivpow2(prc->x0, cblkwidthexpn) << cblkwidthexpn; + tlcblkystart = int_floordivpow2(prc->y0, cblkheightexpn) << cblkheightexpn; + brcblkxend = int_ceildivpow2(prc->x1, cblkwidthexpn) << cblkwidthexpn; + brcblkyend = int_ceildivpow2(prc->y1, cblkheightexpn) << cblkheightexpn; + prc->cw = (brcblkxend - tlcblkxstart) >> cblkwidthexpn; + prc->ch = (brcblkyend - tlcblkystart) >> cblkheightexpn; + + prc->cblks = (opj_tcd_cblk_t *) opj_malloc(prc->cw * prc->ch * sizeof(opj_tcd_cblk_t)); + + prc->incltree = tgt_create(prc->cw, prc->ch); + prc->imsbtree = tgt_create(prc->cw, prc->ch); + + for (cblkno = 0; cblkno < prc->cw * prc->ch; cblkno++) { + int cblkxstart = tlcblkxstart + (cblkno % prc->cw) * (1 << cblkwidthexpn); + int cblkystart = tlcblkystart + (cblkno / prc->cw) * (1 << cblkheightexpn); + int cblkxend = cblkxstart + (1 << cblkwidthexpn); + int cblkyend = cblkystart + (1 << cblkheightexpn); + + /* code-block size (global) */ + opj_tcd_cblk_t *cblk = &prc->cblks[cblkno]; + cblk->x0 = int_max(cblkxstart, prc->x0); + cblk->y0 = int_max(cblkystart, prc->y0); + cblk->x1 = int_min(cblkxend, prc->x1); + cblk->y1 = int_min(cblkyend, prc->y1); + } + } /* precno */ + } /* bandno */ + } /* resno */ + } /* compno */ + } /* i = 0..cp->tileno_size */ + + /* tcd_dump(stdout, tcd, &tcd->tcd_image); */ + + /* + Allocate place to store the decoded data = final image + Place limited by the tile really present in the codestream + */ + + for (i = 0; i < image->numcomps; i++) { + for (j = 0; j < cp->tileno_size; j++) { + tileno = cp->tileno[j]; + x0 = j == 0 ? tcd->tcd_image->tiles[tileno].comps[i].x0 : int_min(x0, + (unsigned int) tcd->tcd_image->tiles[tileno].comps[i].x0); + y0 = j == 0 ? tcd->tcd_image->tiles[tileno].comps[i].y0 : int_min(y0, + (unsigned int) tcd->tcd_image->tiles[tileno].comps[i].y0); + x1 = j == 0 ? tcd->tcd_image->tiles[tileno].comps[i].x1 : int_max(x1, + (unsigned int) tcd->tcd_image->tiles[tileno].comps[i].x1); + y1 = j == 0 ? tcd->tcd_image->tiles[tileno].comps[i].y1 : int_max(y1, + (unsigned int) tcd->tcd_image->tiles[tileno].comps[i].y1); + } + + w = x1 - x0; + h = y1 - y0; + + image->comps[i].data = (int *) opj_malloc(w * h * sizeof(int)); + image->comps[i].w = w; + image->comps[i].h = h; + image->comps[i].x0 = x0; + image->comps[i].y0 = y0; + } +} + +void tcd_makelayer_fixed(opj_tcd_t *tcd, int layno, int final) { + int compno, resno, bandno, precno, cblkno; + int value; /*, matrice[tcd_tcp->numlayers][tcd_tile->comps[0].numresolutions][3]; */ + int matrice[10][10][3]; + int i, j, k; + + opj_cp_t *cp = tcd->cp; + opj_tcd_tile_t *tcd_tile = tcd->tcd_tile; + opj_tcp_t *tcd_tcp = tcd->tcp; + + /*matrice=(int*)opj_malloc(tcd_tcp->numlayers*tcd_tile->comps[0].numresolutions*3*sizeof(int)); */ + + for (compno = 0; compno < tcd_tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tcd_tile->comps[compno]; + for (i = 0; i < tcd_tcp->numlayers; i++) { + for (j = 0; j < tilec->numresolutions; j++) { + for (k = 0; k < 3; k++) { + matrice[i][j][k] = + (int) (cp->matrice[i * tilec->numresolutions * 3 + j * 3 + k] + * (float) (tcd->image->comps[compno].prec / 16.0)); + } + } + } + + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + for (precno = 0; precno < res->pw * res->ph; precno++) { + 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]; + int n; + int imsb = tcd->image->comps[compno].prec - cblk->numbps; /* number of bit-plan equal to zero */ + /* Correction of the matrix of coefficient to include the IMSB information */ + if (layno == 0) { + value = matrice[layno][resno][bandno]; + if (imsb >= value) { + value = 0; + } else { + value -= imsb; + } + } else { + value = matrice[layno][resno][bandno] - matrice[layno - 1][resno][bandno]; + if (imsb >= matrice[layno - 1][resno][bandno]) { + value -= (imsb - matrice[layno - 1][resno][bandno]); + if (value < 0) { + value = 0; + } + } + } + + if (layno == 0) { + cblk->numpassesinlayers = 0; + } + + n = cblk->numpassesinlayers; + if (cblk->numpassesinlayers == 0) { + if (value != 0) { + n = 3 * value - 2 + cblk->numpassesinlayers; + } else { + n = cblk->numpassesinlayers; + } + } else { + n = 3 * value + cblk->numpassesinlayers; + } + + layer->numpasses = n - cblk->numpassesinlayers; + + if (!layer->numpasses) + continue; + + if (cblk->numpassesinlayers == 0) { + layer->len = cblk->passes[n - 1].rate; + layer->data = cblk->data; + } else { + layer->len = cblk->passes[n - 1].rate - cblk->passes[cblk->numpassesinlayers - 1].rate; + layer->data = cblk->data + cblk->passes[cblk->numpassesinlayers - 1].rate; + } + if (final) + cblk->numpassesinlayers = n; + } + } + } + } + } +} + +void tcd_rateallocate_fixed(opj_tcd_t *tcd) { + int layno; + for (layno = 0; layno < tcd->tcp->numlayers; layno++) { + tcd_makelayer_fixed(tcd, layno, 1); + } +} + +void tcd_makelayer(opj_tcd_t *tcd, int layno, double thresh, int final) { + int compno, resno, bandno, precno, cblkno, passno; + + opj_tcd_tile_t *tcd_tile = tcd->tcd_tile; + + tcd_tile->distolayer[layno] = 0; /* fixed_quality */ + + for (compno = 0; compno < tcd_tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tcd_tile->comps[compno]; + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + for (precno = 0; precno < res->pw * res->ph; precno++) { + 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]; + + int n; + if (layno == 0) { + cblk->numpassesinlayers = 0; + } + n = cblk->numpassesinlayers; + for (passno = cblk->numpassesinlayers; passno < cblk->totalpasses; passno++) { + int dr; + double dd; + opj_tcd_pass_t *pass = &cblk->passes[passno]; + if (n == 0) { + dr = pass->rate; + dd = pass->distortiondec; + } else { + dr = pass->rate - cblk->passes[n - 1].rate; + dd = pass->distortiondec - cblk->passes[n - 1].distortiondec; + } + if (!dr) { + if (dd != 0) + n = passno + 1; + continue; + } + if (dd / dr >= thresh) + n = passno + 1; + } + layer->numpasses = n - cblk->numpassesinlayers; + + if (!layer->numpasses) { + layer->disto = 0; + continue; + } + if (cblk->numpassesinlayers == 0) { + layer->len = cblk->passes[n - 1].rate; + layer->data = cblk->data; + layer->disto = cblk->passes[n - 1].distortiondec; + } else { + layer->len = cblk->passes[n - 1].rate - cblk->passes[cblk->numpassesinlayers - 1].rate; + layer->data = cblk->data + cblk->passes[cblk->numpassesinlayers - 1].rate; + layer->disto = cblk->passes[n - 1].distortiondec - cblk->passes[cblk->numpassesinlayers - 1].distortiondec; + } + + tcd_tile->distolayer[layno] += layer->disto; /* fixed_quality */ + + if (final) + cblk->numpassesinlayers = n; + } + } + } + } + } +} + +bool tcd_rateallocate(opj_tcd_t *tcd, unsigned char *dest, int len, opj_image_info_t * image_info) { + int compno, resno, bandno, precno, cblkno, passno, layno; + double min, max; + double cumdisto[100]; /* fixed_quality */ + const double K = 1; /* 1.1; fixed_quality */ + double maxSE = 0; + + opj_cp_t *cp = tcd->cp; + opj_tcd_tile_t *tcd_tile = tcd->tcd_tile; + opj_tcp_t *tcd_tcp = tcd->tcp; + + min = DBL_MAX; + max = 0; + + tcd_tile->nbpix = 0; /* fixed_quality */ + + for (compno = 0; compno < tcd_tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tcd_tile->comps[compno]; + tilec->nbpix = 0; + + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + + for (precno = 0; precno < res->pw * res->ph; precno++) { + 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]; + + for (passno = 0; passno < cblk->totalpasses; passno++) { + opj_tcd_pass_t *pass = &cblk->passes[passno]; + int dr; + double dd, rdslope; + if (passno == 0) { + dr = pass->rate; + dd = pass->distortiondec; + } else { + dr = pass->rate - cblk->passes[passno - 1].rate; + dd = pass->distortiondec - cblk->passes[passno - 1].distortiondec; + } + if (dr == 0) { + continue; + } + rdslope = dd / dr; + if (rdslope < min) { + min = rdslope; + } + if (rdslope > max) { + max = rdslope; + } + } /* passno */ + + /* fixed_quality */ + tcd_tile->nbpix += ((cblk->x1 - cblk->x0) * (cblk->y1 - cblk->y0)); + tilec->nbpix += ((cblk->x1 - cblk->x0) * (cblk->y1 - cblk->y0)); + } /* cbklno */ + } /* precno */ + } /* bandno */ + } /* resno */ + + maxSE += (((double)(1 << tcd->image->comps[compno].prec) - 1.0) + * ((double)(1 << tcd->image->comps[compno].prec) -1.0)) + * ((double)(tilec->nbpix)); + } /* compno */ + + /* index file */ + if(image_info && image_info->index_on) { + opj_tile_info_t *tile_info = &image_info->tile[tcd->tcd_tileno]; + tile_info->nbpix = tcd_tile->nbpix; + tile_info->distotile = tcd_tile->distotile; + tile_info->thresh = (double *) opj_malloc(tcd_tcp->numlayers * sizeof(double)); + } + + for (layno = 0; layno < tcd_tcp->numlayers; layno++) { + double lo = min; + double hi = max; + int success = 0; + /* TODO: remove maxlen */ + int maxlen = tcd_tcp->rates[layno] ? int_min(((int) ceil(tcd_tcp->rates[layno])), len) : len; + double goodthresh = 0; + int i; + double distotarget; /* fixed_quality */ + + /* fixed_quality */ + distotarget = tcd_tile->distotile - ((K * maxSE) / pow((float)10, tcd_tcp->distoratio[layno] / 10)); + + if ((tcd_tcp->rates[layno]) || (cp->disto_alloc == 0)) { + opj_t2_t *t2 = t2_create(tcd->cinfo, tcd->image, cp); + + for (i = 0; i < 32; i++) { + double thresh = (lo + hi) / 2; + int l = 0; + double distoachieved = 0; /* fixed_quality */ + + tcd_makelayer(tcd, layno, thresh, 0); + + if (cp->fixed_quality) { /* fixed_quality */ + distoachieved = (layno == 0) ? + tcd_tile->distolayer[0] : (cumdisto[layno - 1] + tcd_tile->distolayer[layno]); + if (distoachieved < distotarget) { + hi = thresh; + continue; + } + lo = thresh; + } else { + l = t2_encode_packets(t2, tcd->tcd_tileno, tcd_tile, layno + 1, dest, maxlen, image_info); + /* TODO: what to do with l ??? seek / tell ??? */ + /* opj_event_msg(tcd->cinfo, EVT_INFO, "rate alloc: len=%d, max=%d\n", l, maxlen); */ + if (l == -999) { + lo = thresh; + continue; + } + hi = thresh; + } + + success = 1; + goodthresh = thresh; + } + t2_destroy(t2); + } else { + success = 1; + goodthresh = min; + } + + if (!success) { + return false; + } + + if(image_info && image_info->index_on) { /* Threshold for Marcela Index */ + image_info->tile[tcd->tcd_tileno].thresh[layno] = goodthresh; + } + tcd_makelayer(tcd, layno, goodthresh, 1); + + /* fixed_quality */ + cumdisto[layno] = (layno == 0) ? tcd_tile->distolayer[0] : (cumdisto[layno - 1] + tcd_tile->distolayer[layno]); + } + + return true; +} + +int tcd_encode_tile(opj_tcd_t *tcd, int tileno, unsigned char *dest, int len, opj_image_info_t * image_info) { + int compno; + int l, i, npck = 0; + double encoding_time; + opj_tcd_tile_t *tile = NULL; + opj_tcp_t *tcd_tcp = NULL; + opj_cp_t *cp = NULL; + + opj_tcp_t *tcp = &tcd->cp->tcps[0]; + opj_tccp_t *tccp = &tcp->tccps[0]; + opj_image_t *image = tcd->image; + + opj_t1_t *t1 = NULL; /* T1 component */ + opj_t2_t *t2 = NULL; /* T2 component */ + + tcd->tcd_tileno = tileno; + tcd->tcd_tile = tcd->tcd_image->tiles; + tcd->tcp = &tcd->cp->tcps[tileno]; + + tile = tcd->tcd_tile; + tcd_tcp = tcd->tcp; + cp = tcd->cp; + + /* INDEX >> "Precinct_nb_X et Precinct_nb_Y" */ + if(image_info && image_info->index_on) { + opj_tcd_tilecomp_t *tilec_idx = &tile->comps[0]; /* based on component 0 */ + for (i = 0; i < tilec_idx->numresolutions; i++) { + opj_tcd_resolution_t *res_idx = &tilec_idx->resolutions[i]; + + image_info->tile[tileno].pw[i] = res_idx->pw; + image_info->tile[tileno].ph[i] = res_idx->ph; + + npck += res_idx->pw * res_idx->ph; + + image_info->tile[tileno].pdx[i] = tccp->prcw[i]; + image_info->tile[tileno].pdy[i] = tccp->prch[i]; + } + image_info->tile[tileno].packet = (opj_packet_info_t *) opj_malloc(image_info->comp * image_info->layer * npck * sizeof(opj_packet_info_t)); + } + /* << INDEX */ + + /*---------------TILE-------------------*/ + encoding_time = opj_clock(); /* time needed to encode a tile */ + + for (compno = 0; compno < tile->numcomps; compno++) { + int x, y; + + int adjust = image->comps[compno].sgnd ? 0 : 1 << (image->comps[compno].prec - 1); + int offset_x = int_ceildiv(image->x0, image->comps[compno].dx); + int offset_y = int_ceildiv(image->y0, image->comps[compno].dy); + + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + int tw = tilec->x1 - tilec->x0; + int w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx); + + /* extract tile data */ + + if (tcd_tcp->tccps[compno].qmfbid == 1) { + for (y = tilec->y0; y < tilec->y1; y++) { + /* start of the src tile scanline */ + int *data = &image->comps[compno].data[(tilec->x0 - offset_x) + (y - offset_y) * w]; + /* start of the dst tile scanline */ + int *tile_data = &tilec->data[(y - tilec->y0) * tw]; + for (x = tilec->x0; x < tilec->x1; x++) { + *tile_data++ = *data++ - adjust; + } + } + } else if (tcd_tcp->tccps[compno].qmfbid == 0) { + for (y = tilec->y0; y < tilec->y1; y++) { + /* start of the src tile scanline */ + int *data = &image->comps[compno].data[(tilec->x0 - offset_x) + (y - offset_y) * w]; + /* start of the dst tile scanline */ + int *tile_data = &tilec->data[(y - tilec->y0) * tw]; + for (x = tilec->x0; x < tilec->x1; x++) { + *tile_data++ = (*data++ - adjust) << 13; + } + } + } + } + + /*----------------MCT-------------------*/ + if (tcd_tcp->mct) { + int samples = (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0); + if (tcd_tcp->tccps[0].qmfbid == 0) { + mct_encode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data, samples); + } else { + mct_encode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data, samples); + } + } + + /*----------------DWT---------------------*/ + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + if (tcd_tcp->tccps[compno].qmfbid == 1) { + dwt_encode(tilec); + } else if (tcd_tcp->tccps[compno].qmfbid == 0) { + dwt_encode_real(tilec); + } + } + + /*------------------TIER1-----------------*/ + t1 = t1_create(tcd->cinfo); + t1_encode_cblks(t1, tile, tcd_tcp); + t1_destroy(t1); + + /*-----------RATE-ALLOCATE------------------*/ + + /* INDEX */ + if(image_info) { + image_info->index_write = 0; + } + if (cp->disto_alloc || cp->fixed_quality) { /* fixed_quality */ + /* Normal Rate/distortion allocation */ + tcd_rateallocate(tcd, dest, len, image_info); + } else { + /* Fixed layer allocation */ + tcd_rateallocate_fixed(tcd); + } + + /*--------------TIER2------------------*/ + + /* INDEX */ + if(image_info) { + image_info->index_write = 1; + } + + t2 = t2_create(tcd->cinfo, image, cp); + l = t2_encode_packets(t2, tileno, tile, tcd_tcp->numlayers, dest, len, image_info); + t2_destroy(t2); + + /*---------------CLEAN-------------------*/ + + encoding_time = opj_clock() - encoding_time; + opj_event_msg(tcd->cinfo, EVT_INFO, "- tile encoded in %f s\n", encoding_time); + + /* cleaning memory */ + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + opj_free(tilec->data); + } + + return l; +} + +bool tcd_decode_tile(opj_tcd_t *tcd, unsigned char *src, int len, int tileno) { + int l; + int compno; + int eof = 0; + double tile_time, t1_time, dwt_time; + opj_tcd_tile_t *tile = NULL; + + opj_t1_t *t1 = NULL; /* T1 component */ + opj_t2_t *t2 = NULL; /* T2 component */ + + tcd->tcd_tileno = tileno; + tcd->tcd_tile = &(tcd->tcd_image->tiles[tileno]); + tcd->tcp = &(tcd->cp->tcps[tileno]); + tile = tcd->tcd_tile; + + tile_time = opj_clock(); /* time needed to decode a tile */ + opj_event_msg(tcd->cinfo, EVT_INFO, "tile %d of %d\n", tileno + 1, tcd->cp->tw * tcd->cp->th); + + /*--------------TIER2------------------*/ + + t2 = t2_create(tcd->cinfo, tcd->image, tcd->cp); + l = t2_decode_packets(t2, src, len, tileno, tile); + t2_destroy(t2); + + if (l == -999) { + eof = 1; + opj_event_msg(tcd->cinfo, EVT_ERROR, "tcd_decode: incomplete bistream\n"); + } + + /*------------------TIER1-----------------*/ + + t1_time = opj_clock(); /* time needed to decode a tile */ + t1 = t1_create(tcd->cinfo); + t1_decode_cblks(t1, tile, tcd->tcp); + t1_destroy(t1); + t1_time = opj_clock() - t1_time; + opj_event_msg(tcd->cinfo, EVT_INFO, "- tiers-1 took %f s\n", t1_time); + + /*----------------DWT---------------------*/ + + dwt_time = opj_clock(); /* time needed to decode a tile */ + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + if (tcd->cp->reduce != 0) { + tcd->image->comps[compno].resno_decoded = + tile->comps[compno].numresolutions - tcd->cp->reduce - 1; + } + + if (tcd->tcp->tccps[compno].qmfbid == 1) { + dwt_decode(tilec, tilec->numresolutions - 1 - tcd->image->comps[compno].resno_decoded); + } else { + dwt_decode_real(tilec, tilec->numresolutions - 1 - tcd->image->comps[compno].resno_decoded); + } + + if (tile->comps[compno].numresolutions > 0) { + tcd->image->comps[compno].factor = tile->comps[compno].numresolutions - (tcd->image->comps[compno].resno_decoded + 1); + } + } + dwt_time = opj_clock() - dwt_time; + opj_event_msg(tcd->cinfo, EVT_INFO, "- dwt took %f s\n", dwt_time); + + /*----------------MCT-------------------*/ + + if (tcd->tcp->mct) { + if (tcd->tcp->tccps[0].qmfbid == 1) { + mct_decode(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data, + (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0)); + } else { + mct_decode_real(tile->comps[0].data, tile->comps[1].data, tile->comps[2].data, + (tile->comps[0].x1 - tile->comps[0].x0) * (tile->comps[0].y1 - tile->comps[0].y0)); + } + } + + /*---------------TILE-------------------*/ + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + opj_tcd_resolution_t *res = &tilec->resolutions[tcd->image->comps[compno].resno_decoded]; + int adjust = tcd->image->comps[compno].sgnd ? 0 : 1 << (tcd->image->comps[compno].prec - 1); + int min = tcd->image->comps[compno].sgnd ? + -(1 << (tcd->image->comps[compno].prec - 1)) : 0; + int max = tcd->image->comps[compno].sgnd ? + (1 << (tcd->image->comps[compno].prec - 1)) - 1 : (1 << tcd->image->comps[compno].prec) - 1; + + int tw = tilec->x1 - tilec->x0; + int w = tcd->image->comps[compno].w; + + int i, j; + int offset_x = int_ceildivpow2(tcd->image->comps[compno].x0, tcd->image->comps[compno].factor); + int offset_y = int_ceildivpow2(tcd->image->comps[compno].y0, tcd->image->comps[compno].factor); + + for (j = res->y0; j < res->y1; j++) { + for (i = res->x0; i < res->x1; i++) { + int v; + float tmp = (float)((tilec->data[i - res->x0 + (j - res->y0) * tw]) / 8192.0); + + if (tcd->tcp->tccps[compno].qmfbid == 1) { + v = tilec->data[i - res->x0 + (j - res->y0) * tw]; + } else { + int tmp2 = ((int) (floor(fabs(tmp)))) + ((int) floor(fabs(tmp*2))%2); + v = ((tmp < 0) ? -tmp2:tmp2); + } + v += adjust; + + tcd->image->comps[compno].data[(i - offset_x) + (j - offset_y) * w] = int_clamp(v, min, max); + } + } + } + + tile_time = opj_clock() - tile_time; /* time needed to decode a tile */ + opj_event_msg(tcd->cinfo, EVT_INFO, "- tile decoded in %f s\n", tile_time); + + for (compno = 0; compno < tile->numcomps; compno++) { + opj_free(tcd->tcd_image->tiles[tileno].comps[compno].data); + tcd->tcd_image->tiles[tileno].comps[compno].data = NULL; + } + + if (eof) { + return false; + } + + return true; +} + +void tcd_free_decode(opj_tcd_t *tcd) { + int tileno,compno,resno,bandno,precno; + + opj_tcd_image_t *tcd_image = tcd->tcd_image; + + for (tileno = 0; tileno < tcd_image->tw * tcd_image->th; tileno++) { + opj_tcd_tile_t *tile = &tcd_image->tiles[tileno]; + for (compno = 0; compno < tile->numcomps; compno++) { + opj_tcd_tilecomp_t *tilec = &tile->comps[compno]; + for (resno = 0; resno < tilec->numresolutions; resno++) { + opj_tcd_resolution_t *res = &tilec->resolutions[resno]; + for (bandno = 0; bandno < res->numbands; bandno++) { + opj_tcd_band_t *band = &res->bands[bandno]; + for (precno = 0; precno < res->ph * res->pw; precno++) { + opj_tcd_precinct_t *prec = &band->precincts[precno]; + if (prec->cblks != NULL) opj_free(prec->cblks); + if (prec->imsbtree != NULL) tgt_destroy(prec->imsbtree); + if (prec->incltree != NULL) tgt_destroy(prec->incltree); + } + if (band->precincts != NULL) opj_free(band->precincts); + } + } + if (tilec->resolutions != NULL) opj_free(tilec->resolutions); + } + if (tile->comps != NULL) opj_free(tile->comps); + } + + if (tcd_image->tiles != NULL) opj_free(tcd_image->tiles); +} + diff --git a/libopenjpeg/tcd.h b/libopenjpeg/tcd.h new file mode 100644 index 00000000..986d976f --- /dev/null +++ b/libopenjpeg/tcd.h @@ -0,0 +1,257 @@ +/* + * 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 */ diff --git a/libopenjpeg/tgt.c b/libopenjpeg/tgt.c new file mode 100644 index 00000000..4cf678d5 --- /dev/null +++ b/libopenjpeg/tgt.c @@ -0,0 +1,212 @@ +/* + * 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; +} diff --git a/libopenjpeg/tgt.h b/libopenjpeg/tgt.h new file mode 100644 index 00000000..481f678a --- /dev/null +++ b/libopenjpeg/tgt.h @@ -0,0 +1,113 @@ +/* + * 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 */