+++ /dev/null
-/*
- * The copyright in this software is being made available under the 2-clauses
- * BSD License, included below. This software may be subject to other third
- * party and contributor rights, including patent rights, and no such rights
- * are granted under this license.
- *
- * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
- * Copyright (c) 2002-2014, Professor Benoit Macq
- * Copyright (c) 2001-2003, David Janssens
- * Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2007, Francois-Olivier Devaux
- * Copyright (c) 2003-2014, Antonin Descampe
- * Copyright (c) 2005, Herve Drolon, FreeImage Team
- * Copyright (c) 2010-2011, Kaori Hagihara
- * 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 opj_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 opj_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 opj_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);
-/**
-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 opj_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,
- opj_codestream_info_t *cstr_info);
-static opj_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 opj_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
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_color_t *color);
-/**
-Apply collected palette data
-@param color Collector for profile, cdef and pclr data
-@param image
-*/
-static void jp2_apply_pclr(opj_jp2_color_t *color, opj_image_t *image,
- opj_common_ptr cinfo);
-/**
-Collect palette data
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@param box
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
-/**
-Collect component mapping data
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@param box
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
-/**
-Collect colour specification data
-@param jp2 JP2 handle
-@param cio Input buffer stream
-@param box
-@param color Collector for profile, cdef and pclr data
-@return Returns true if successful, returns false otherwise
-*/
-static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color);
-/*@}*/
-
-/*@}*/
-
-/* ----------------------------------------------------------------------- */
-
-static opj_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 OPJ_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;
- }
- if (box->length < 0) {
- opj_event_msg(cinfo, EVT_ERROR, "Integer overflow in box->length\n");
- return OPJ_FALSE; /* TODO: actually check jp2_read_boxhdr's return value */
- }
-
- return OPJ_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 opj_bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio)
-{
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- opj_event_msg(cinfo, EVT_ERROR, "Failed to read boxhdr\n");
- return OPJ_FALSE;
- }
- if (JP2_IHDR != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected IHDR Marker\n");
- return OPJ_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 OPJ_FALSE;
- }
-
- return OPJ_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 opj_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;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- opj_event_msg(cinfo, EVT_ERROR, "Failed to read boxhdr\n");
- return OPJ_FALSE;
- }
- if (JP2_BPCC != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected BPCC Marker\n");
- return OPJ_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 OPJ_FALSE;
- }
-
- return OPJ_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 == 2) {
- jp2->enumcs = 0;
- }
-
- cio_write(cio, jp2->enumcs, 4); /* EnumCS */
-
- 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_free_pclr(opj_jp2_color_t *color)
-{
- opj_free(color->jp2_pclr->channel_sign);
- opj_free(color->jp2_pclr->channel_size);
- opj_free(color->jp2_pclr->entries);
-
- if (color->jp2_pclr->cmap) {
- opj_free(color->jp2_pclr->cmap);
- }
-
- opj_free(color->jp2_pclr);
- color->jp2_pclr = NULL;
-}
-
-static void free_color_data(opj_jp2_color_t *color)
-{
- if (color->jp2_pclr) {
- jp2_free_pclr(color);
- }
- if (color->jp2_cdef) {
- if (color->jp2_cdef->info) {
- opj_free(color->jp2_cdef->info);
- }
- opj_free(color->jp2_cdef);
- }
- if (color->icc_profile_buf) {
- opj_free(color->icc_profile_buf);
- }
-}
-
-static void jp2_apply_pclr(opj_jp2_color_t *color, opj_image_t *image,
- opj_common_ptr cinfo)
-{
- opj_image_comp_t *old_comps, *new_comps;
- unsigned char *channel_size, *channel_sign;
- unsigned int *entries;
- opj_jp2_cmap_comp_t *cmap;
- int *src, *dst;
- unsigned int j, max;
- unsigned short i, nr_channels, cmp, pcol;
- int k, top_k;
-
- channel_size = color->jp2_pclr->channel_size;
- channel_sign = color->jp2_pclr->channel_sign;
- entries = color->jp2_pclr->entries;
- cmap = color->jp2_pclr->cmap;
- nr_channels = color->jp2_pclr->nr_channels;
-
- old_comps = image->comps;
- new_comps = (opj_image_comp_t*)
- opj_malloc(nr_channels * sizeof(opj_image_comp_t));
-
- for (i = 0; i < nr_channels; ++i) {
- pcol = cmap[i].pcol;
- cmp = cmap[i].cmp;
-
- if (pcol < nr_channels) {
- new_comps[pcol] = old_comps[cmp];
- } else {
- opj_event_msg(cinfo, EVT_ERROR,
- "Error with pcol value %d (max: %d). skipping\n", pcol, nr_channels);
- continue;
- }
-
- if (cmap[i].mtyp == 0) { /* Direct use */
- old_comps[cmp].data = NULL;
- continue;
- }
- /* Palette mapping: */
- new_comps[pcol].data = (int*)
- opj_malloc(sizeof(int) * old_comps[cmp].w * old_comps[cmp].h);
- new_comps[pcol].prec = channel_size[i];
- new_comps[pcol].sgnd = channel_sign[i];
- }
- top_k = color->jp2_pclr->nr_entries - 1;
-
- for (i = 0; i < nr_channels; ++i) {
- /* Direct use: */
- if (cmap[i].mtyp == 0) {
- continue;
- }
-
- /* Palette mapping: */
- cmp = cmap[i].cmp;
- pcol = cmap[i].pcol;
- src = old_comps[cmp].data;
- dst = new_comps[pcol].data;
- max = new_comps[pcol].w * new_comps[pcol].h;
-
- for (j = 0; j < max; ++j) {
- /* The index */
- if ((k = src[j]) < 0) {
- k = 0;
- } else if (k > top_k) {
- k = top_k;
- }
- /* The colour */
- dst[j] = entries[k * nr_channels + pcol];
- }
- }
- max = image->numcomps;
- for (i = 0; i < max; ++i) {
- if (old_comps[i].data) {
- opj_free(old_comps[i].data);
- }
- }
- opj_free(old_comps);
- image->comps = new_comps;
- image->numcomps = nr_channels;
-
- jp2_free_pclr(color);
-
-}/* apply_pclr() */
-
-static opj_bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_pclr_t *jp2_pclr;
- unsigned char *channel_size, *channel_sign;
- unsigned int *entries;
- unsigned short nr_entries, nr_channels;
- unsigned short i, j;
- unsigned char uc;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
- /* Part 1, I.5.3.4: 'There shall be at most one Palette box inside
- * a JP2 Header box' :
- */
- if (color->jp2_pclr) {
- return OPJ_FALSE;
- }
-
- nr_entries = (unsigned short)cio_read(cio, 2); /* NE */
- nr_channels = (unsigned short)cio_read(cio, 1);/* NPC */
-
- entries = (unsigned int*)
- opj_malloc(sizeof(unsigned int) * nr_channels * nr_entries);
- channel_size = (unsigned char*)opj_malloc(nr_channels);
- channel_sign = (unsigned char*)opj_malloc(nr_channels);
-
- jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
- jp2_pclr->channel_sign = channel_sign;
- jp2_pclr->channel_size = channel_size;
- jp2_pclr->entries = entries;
- jp2_pclr->nr_entries = nr_entries;
- jp2_pclr->nr_channels = nr_channels;
- jp2_pclr->cmap = NULL;
-
- color->jp2_pclr = jp2_pclr;
-
- for (i = 0; i < nr_channels; ++i) {
- uc = cio_read(cio, 1); /* Bi */
- channel_size[i] = (uc & 0x7f) + 1;
- channel_sign[i] = (uc & 0x80) ? 1 : 0;
- }
-
- for (j = 0; j < nr_entries; ++j) {
- for (i = 0; i < nr_channels; ++i) {
- /* Cji */
- *entries++ = cio_read(cio, (channel_size[i] + 7) >> 3);
- }
- }
-
- return OPJ_TRUE;
-}/* jp2_read_pclr() */
-
-static opj_bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_cmap_comp_t *cmap;
- unsigned short i, nr_channels;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
- /* Need nr_channels: */
- if (color->jp2_pclr == NULL) {
- return OPJ_FALSE;
- }
-
- /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
- * inside a JP2 Header box' :
- */
- if (color->jp2_pclr->cmap) {
- return OPJ_FALSE;
- }
-
- nr_channels = color->jp2_pclr->nr_channels;
- cmap = (opj_jp2_cmap_comp_t*)
- opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t));
-
- for (i = 0; i < nr_channels; ++i) {
- cmap[i].cmp = (unsigned short)cio_read(cio, 2);
- cmap[i].mtyp = cio_read(cio, 1);
- cmap[i].pcol = cio_read(cio, 1);
-
- }
- color->jp2_pclr->cmap = cmap;
-
- return OPJ_TRUE;
-}/* jp2_read_cmap() */
-
-static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
-{
- opj_jp2_cdef_info_t *info;
- int color_space;
- unsigned short i, n, cn, typ, asoc, acn;
-
- color_space = image->color_space;
- info = color->jp2_cdef->info;
- n = color->jp2_cdef->n;
-
- for (i = 0; i < n; ++i) {
- /* WATCH: acn = asoc - 1 ! */
- if ((asoc = info[i].asoc) == 0) {
- continue;
- }
-
- cn = info[i].cn;
- typ = info[i].typ;
- acn = asoc - 1;
-
- if (cn != acn) {
- opj_image_comp_t saved;
-
- memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
- memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
- memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
-
- info[i].asoc = cn + 1;
- info[acn].asoc = info[acn].cn + 1;
- }
- }
- if (color->jp2_cdef->info) {
- opj_free(color->jp2_cdef->info);
- }
-
- opj_free(color->jp2_cdef);
- color->jp2_cdef = NULL;
-
-}/* jp2_apply_cdef() */
-
-static opj_bool jp2_read_cdef(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- opj_jp2_cdef_info_t *info;
- unsigned short i, n;
-
- OPJ_ARG_NOT_USED(box);
- OPJ_ARG_NOT_USED(jp2);
-
- /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
- * inside a JP2 Header box.'
- */
- if (color->jp2_cdef) {
- return OPJ_FALSE;
- }
-
- if ((n = (unsigned short)cio_read(cio, 2)) == 0) {
- return OPJ_FALSE; /* szukw000: FIXME */
- }
-
- info = (opj_jp2_cdef_info_t*)
- opj_malloc(n * sizeof(opj_jp2_cdef_info_t));
-
- color->jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
- color->jp2_cdef->info = info;
- color->jp2_cdef->n = n;
-
- for (i = 0; i < n; ++i) {
- info[i].cn = (unsigned short)cio_read(cio, 2);
- info[i].typ = (unsigned short)cio_read(cio, 2);
- info[i].asoc = (unsigned short)cio_read(cio, 2);
-
- }
- return OPJ_TRUE;
-}/* jp2_read_cdef() */
-
-static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_box_t *box, opj_jp2_color_t *color)
-{
- int skip_len;
- opj_common_ptr cinfo;
-
- /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
- * Specification boxes after the first.'
- */
- if (color->jp2_has_colr) {
- return OPJ_FALSE;
- }
-
- cinfo = jp2->cinfo;
-
- 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 if (jp2->meth == 2) {
- /* skip PROFILE */
- skip_len = box->init_pos + box->length - cio_tell(cio);
- if (skip_len < 0) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with COLR box size\n");
- return OPJ_FALSE;
- }
- if (skip_len > 0) {
- unsigned char *start;
-
- start = cio_getbp(cio);
- color->icc_profile_buf = (unsigned char*)opj_malloc(skip_len);
- color->icc_profile_len = skip_len;
-
- cio_skip(cio, box->init_pos + box->length - cio_tell(cio));
-
- memcpy(color->icc_profile_buf, start, skip_len);
- }
- }
-
- if (cio_tell(cio) - box->init_pos != box->length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with COLR Box\n");
- return OPJ_FALSE;
- }
- color->jp2_has_colr = 1;
-
- return OPJ_TRUE;
-}/* jp2_read_colr() */
-
-opj_bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color)
-{
- opj_jp2_box_t box;
- int jp2h_end;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- do {
- if (JP2_JP2H != box.type) {
- if (box.type == JP2_JP2C) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected JP2H Marker\n");
- return OPJ_FALSE;
- }
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_skip(cio, box.length - 8);
-
- if (cio->bp >= cio->end) {
- return OPJ_FALSE;
- }
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- }
- } while (JP2_JP2H != box.type);
-
- if (!jp2_read_ihdr(jp2, cio)) {
- return OPJ_FALSE;
- }
- jp2h_end = box.init_pos + box.length;
-
- if (jp2->bpc == 255) {
- if (!jp2_read_bpcc(jp2, cio)) {
- return OPJ_FALSE;
- }
- }
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
-
- while (cio_tell(cio) < jp2h_end) {
- if (box.type == JP2_COLR) {
- if (!jp2_read_colr(jp2, cio, &box, color)) {
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- continue;
- }
- if (box.type == JP2_CDEF && !jp2->ignore_pclr_cmap_cdef) {
- if (!jp2_read_cdef(jp2, cio, &box, color)) {
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- continue;
- }
- if (box.type == JP2_PCLR && !jp2->ignore_pclr_cmap_cdef) {
- if (!jp2_read_pclr(jp2, cio, &box, color)) {
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- continue;
- }
- if (box.type == JP2_CMAP && !jp2->ignore_pclr_cmap_cdef) {
- if (!jp2_read_cmap(jp2, cio, &box, color)) {
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- }
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- continue;
- }
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_seek(cio, box.init_pos + 8);
- cio_skip(cio, box.length - 8);
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
-
- }/* while(cio_tell(cio) < box_end) */
-
- cio_seek(cio, jp2h_end);
-
- /* Part 1, I.5.3.3 : 'must contain at least one' */
- return (color->jp2_has_colr == 1);
-
-}/* jp2_read_jp2h() */
-
-opj_image_t* opj_jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_codestream_info_t *cstr_info)
-{
- opj_common_ptr cinfo;
- opj_image_t *image = NULL;
- opj_jp2_color_t color;
-
- if (!jp2 || !cio) {
- return NULL;
- }
- memset(&color, 0, sizeof(opj_jp2_color_t));
- cinfo = jp2->cinfo;
-
- /* JP2 decoding */
- if (!jp2_read_struct(jp2, cio, &color)) {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n");
- return NULL;
- }
-
- /* J2K decoding */
- image = j2k_decode(jp2->j2k, cio, cstr_info);
-
- if (!image) {
- free_color_data(&color);
- opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n");
- return NULL;
- }
-
- if (!jp2->ignore_pclr_cmap_cdef) {
-
- /* Set Image Color Space */
- if (jp2->enumcs == 16) {
- image->color_space = CLRSPC_SRGB;
- } else if (jp2->enumcs == 17) {
- image->color_space = CLRSPC_GRAY;
- } else if (jp2->enumcs == 18) {
- image->color_space = CLRSPC_SYCC;
- } else {
- image->color_space = CLRSPC_UNKNOWN;
- }
-
- if (color.jp2_cdef) {
- jp2_apply_cdef(image, &color);
- }
- if (color.jp2_pclr) {
- /* Part 1, I.5.3.4: Either both or none : */
- if (!color.jp2_pclr->cmap) {
- jp2_free_pclr(&color);
- } else {
- jp2_apply_pclr(&color, image, cinfo);
- }
- }
- if (color.icc_profile_buf) {
- image->icc_profile_buf = color.icc_profile_buf;
- color.icc_profile_buf = NULL;
- image->icc_profile_len = color.icc_profile_len;
- }
- }
-
- return image;
-
-}/* opj_jp2_decode() */
-
-
-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 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 opj_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;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- opj_event_msg(cinfo, EVT_ERROR, "Failed to read boxhdr\n");
- return OPJ_FALSE;
- }
- if (JP2_FTYP != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n");
- return OPJ_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 OPJ_FALSE;
- }
-
- return OPJ_TRUE;
-}
-
-static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image,
- opj_codestream_info_t *cstr_info)
-{
- 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, cstr_info)) {
- 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 opj_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;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- opj_event_msg(cinfo, EVT_ERROR, "Failed to read boxhdr\n");
- return OPJ_FALSE;
- }
- do {
- if (JP2_JP2C != box.type) {
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- cio_skip(cio, box.length - 8);
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- return OPJ_FALSE;
- }
- }
- } while (JP2_JP2C != box.type);
-
- *j2k_codestream_offset = cio_tell(cio);
- if (box.length <= 8) {
- return OPJ_FALSE;
- }
- *j2k_codestream_length = box.length - 8;
-
- return OPJ_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 opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio)
-{
- opj_jp2_box_t box;
-
- opj_common_ptr cinfo = jp2->cinfo;
-
- if (jp2_read_boxhdr(cinfo, cio, &box) == OPJ_FALSE) {
- opj_event_msg(cinfo, EVT_ERROR, "Failed to read boxhdr\n");
- return OPJ_FALSE;
- }
- if (JP2_JP != box.type) {
- opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n");
- return OPJ_FALSE;
- }
- if (0x0d0a870a != cio_read(cio, 4)) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n");
- return OPJ_FALSE;
- }
- if (cio_tell(cio) - box.init_pos != box.length) {
- opj_event_msg(cinfo, EVT_ERROR, "Error with JP Box size\n");
- return OPJ_FALSE;
- }
-
- return OPJ_TRUE;
-}
-
-
-static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
- opj_jp2_color_t *color)
-{
- if (!jp2_read_jp(jp2, cio)) {
- return OPJ_FALSE;
- }
- if (!jp2_read_ftyp(jp2, cio)) {
- return OPJ_FALSE;
- }
- if (!jp2_read_jp2h(jp2, cio, color)) {
- return OPJ_FALSE;
- }
- if (!jp2_read_jp2c(jp2, cio, &jp2->j2k_codestream_length,
- &jp2->j2k_codestream_offset)) {
- return OPJ_FALSE;
- }
-
- return OPJ_TRUE;
-}
-
-
-
-
-/* ----------------------------------------------------------------------- */
-/* JP2 decoder interface */
-/* ----------------------------------------------------------------------- */
-
-opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo)
-{
- opj_jp2_t *jp2 = (opj_jp2_t*) opj_calloc(1, 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 */
- jp2->ignore_pclr_cmap_cdef = parameters->flags &
- OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
-}
-
-/* ----------------------------------------------------------------------- */
-/* 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 */
- /* ------------------- */
-
- /* Check if number of components respects standard */
- if (image->numcomps < 1 || image->numcomps > 16384) {
- opj_event_msg(jp2->cinfo, EVT_ERROR,
- "Invalid number of components specified while setting up JP2 encoder\n");
- return;
- }
-
- 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);
- }
- 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 */
- }
- jp2->precedence = 0; /* PRECEDENCE */
- jp2->approx = 0; /* APPROX */
-}
-
-opj_bool opj_jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image,
- opj_codestream_info_t *cstr_info)
-{
-
- int pos_iptr, pos_jp2c, len_jp2c;
- pos_jp2c = pos_iptr = -1; /* remove a warning */
-
- /* 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 (!(len_jp2c = jp2_write_jp2c(jp2, cio, image, cstr_info))) {
- opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n");
- return OPJ_FALSE;
- }
-
- return OPJ_TRUE;
-}
projects / openjpeg.git / blobdiff