/*
-* Copyright (c) 2003-2004, Yannick Verschueren
-* Copyright (c) 2003-2004, 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.
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and 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
*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "j2k.h"
-#include "jp2.h"
-#include "cio.h"
-#include "tcd.h"
-#include "int.h"
-
-#define JPIP_JPIP 0x6a706970
-
-#define JP2_JP 0x6a502020
-#define JP2_FTYP 0x66747970
-#define JP2_JP2H 0x6a703268
-#define JP2_IHDR 0x69686472
-#define JP2_COLR 0x636f6c72
-#define JP2_JP2C 0x6a703263
-#define JP2_URL 0x75726c20
-#define JP2_DBTL 0x6474626c
-#define JP2_BPCC 0x62706363
-#define JP2_JP2 0x6a703220
-
-/*
-*
-* Read box headers
-*
+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
*/
-
-int jp2_read_boxhdr(jp2_box_t * box)
-{
- box->init_pos = cio_tell();
- box->length = cio_read(4);
- box->type = cio_read(4);
- if (box->length == 1) {
- if (cio_read(4) != 0) {
- fprintf(stderr, "Error: Cannot handle box sizes higher than 2^32\n");
- return 1;
- };
- box->length = cio_read(4);
- }
- return 0;
+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);
+/**
+Write file Index (superbox)
+@param[in] offset_jp2c offset of jp2c box
+@param[in] length_jp2c length of jp2c box
+@param[in] offset_idx offset of cidx box
+@param[in] length_idx length of cidx box
+@param[in] cio file output handle
+@return length of fidx box
+*/
+static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio);
+/**
+Write index Finder box
+@param[in] offset offset of fidx box
+@param[in] length length of fidx box
+@param[in] cio file output handle
+*/
+static void write_iptr( int offset, int length, opj_cio_t *cio);
+/**
+Write proxy box
+@param[in] offset_jp2c offset of jp2c box
+@param[in] length_jp2c length of jp2c box
+@param[in] offset_idx offset of cidx box
+@param[in] length_idx length of cidx box
+@param[in] cio file output handle
+*/
+static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio);
+/*@}*/
+
+/*@}*/
+
+/* ----------------------------------------------------------------------- */
+
+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;
+ }
+
+ return OPJ_TRUE;
}
-/*
-*
-* Initialisation of a Standard JP2 structure
-*/
+#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
-int jp2_init_stdjp2(jp2_struct_t * jp2_struct, j2k_image_t * img)
-{
- int depth_0, sign, depth, i;
+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;
- jp2_struct->h = img->y1 - img->y0; // HEIGHT
- jp2_struct->w = img->x1 - img->x0; // WIDTH
- jp2_struct->numcomps = img->numcomps; // NC
- jp2_struct->comps = (jp2_comps_t *) malloc(sizeof(jp2_comps_t));
+ 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;
+ }
- depth_0 = img->comps[0].prec - 1;
- sign = img->comps[0].sgnd;
- jp2_struct->bpc = depth_0 + (sign << 7);
+ 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));
- for (i = 1; i < img->numcomps; i++) {
- depth = img->comps[i].prec - 1;
- sign = img->comps[i].sgnd;
- if (depth_0 != depth)
- jp2_struct->bpc = 255;
- }
+ 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;
+ }
- jp2_struct->C = 7; // C : Always 7
- jp2_struct->UnkC = 0; // UnkC, colorspace specified in colr box
- jp2_struct->IPR = 0; // IPR, no intellectual property
+ return OPJ_TRUE;
+}
- for (i = 0; i < img->numcomps; i++)
- jp2_struct->comps[i].bpcc =
- img->comps[i].prec - 1 + (img->comps[i].sgnd << 7);
+static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
+ opj_jp2_box_t box;
- jp2_struct->precedence = 0; // PRECEDENCE
- jp2_struct->approx = 0; // APPROX
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_IHDR, 4); /* IHDR */
- if ((img->numcomps == 1 || img->numcomps == 3)
- && (jp2_struct->bpc != 255))
- jp2_struct->meth = 1;
- else
- jp2_struct->meth = 2;
-
- if (jp2_struct->meth == 1) {
- if (img->color_space == 1)
- jp2_struct->enumcs = 16;
- else if (img->color_space == 2)
- jp2_struct->enumcs = 17;
- else if (img->color_space == 3)
- jp2_struct->enumcs = 18; // YUV
- } else
- jp2_struct->enumcs = 0; // PROFILE (??)
-
- jp2_struct->brand = JP2_JP2; /* BR */
- jp2_struct->minversion = 0; /* MinV */
- jp2_struct->numcl = 1;
- jp2_struct->cl = (int *) malloc(jp2_struct->numcl * sizeof(int));
- jp2_struct->cl[0] = JP2_JP2; /* CL0 : JP2 */
- return 0;
-}
+ 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 */
-void jp2_write_url(char *Idx_file)
-{
- unsigned int i;
- char str[256];
- jp2_box_t box;
+ 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 */
- sprintf(str, "%s", Idx_file);
+ 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_skip(4);
- cio_write(JP2_URL, 4); // DBTL
- cio_write(0, 1); // VERS
- cio_write(0, 3); // FLAG
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_BPCC, 4); /* BPCC */
- for (i = 0; i < strlen(str); i++) {
- cio_write(str[i], 1);
- }
+ for (i = 0; i < jp2->numcomps; i++) {
+ cio_write(cio, jp2->comps[i].bpcc, 1);
+ }
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+ 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);
}
-/*
-* Read the IHDR box
-*
-* Image Header box
-*
-*/
-int jp2_read_ihdr(jp2_struct_t * jp2_struct)
-{
- jp2_box_t box;
- jp2_read_boxhdr(&box);
- if (JP2_IHDR != box.type) {
- fprintf(stderr, "Error: Expected IHDR Marker\n");
- return 1;
- }
+static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
+ unsigned int i;
+ opj_jp2_box_t box;
- jp2_struct->h = cio_read(4); // HEIGHT
- jp2_struct->w = cio_read(4); // WIDTH
- jp2_struct->numcomps = cio_read(2); // NC
+ opj_common_ptr cinfo = jp2->cinfo;
- jp2_struct->bpc = cio_read(1); // BPC
+ 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;
+ }
- jp2_struct->C = cio_read(1); // C
- jp2_struct->UnkC = cio_read(1); // UnkC
- jp2_struct->IPR = cio_read(1); // IPR
+ for (i = 0; i < jp2->numcomps; i++) {
+ jp2->comps[i].bpcc = cio_read(cio, 1);
+ }
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with IHDR Box\n");
- return 1;
- }
- return 0;
+ 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;
}
-void jp2_write_ihdr(jp2_struct_t * jp2_struct)
-{
- jp2_box_t box;
+static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) {
+ opj_jp2_box_t box;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_IHDR, 4); // IHDR
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_COLR, 4); /* COLR */
- cio_write(jp2_struct->h, 4); // HEIGHT
- cio_write(jp2_struct->w, 4); // WIDTH
- cio_write(jp2_struct->numcomps, 2); // NC
+ cio_write(cio, jp2->meth, 1); /* METH */
+ cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */
+ cio_write(cio, jp2->approx, 1); /* APPROX */
- cio_write(jp2_struct->bpc, 1); // BPC
+ if(jp2->meth == 2)
+ jp2->enumcs = 0;
- cio_write(jp2_struct->C, 1); // C : Always 7
- cio_write(jp2_struct->UnkC, 1); // UnkC, colorspace unknow
- cio_write(jp2_struct->IPR, 1); // IPR, no intellectual property
+ cio_write(cio, jp2->enumcs, 4); /* EnumCS */
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+ 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);
}
-
-void jp2_write_bpcc(jp2_struct_t * jp2_struct)
+static void jp2_free_pclr(opj_jp2_color_t *color)
{
- unsigned int i;
- jp2_box_t box;
+ opj_free(color->jp2_pclr->channel_sign);
+ opj_free(color->jp2_pclr->channel_size);
+ opj_free(color->jp2_pclr->entries);
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_BPCC, 4); // BPCC
+ if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap);
- for (i = 0; i < jp2_struct->numcomps; i++)
- cio_write(jp2_struct->comps[i].bpcc, 1);
+ opj_free(color->jp2_pclr); color->jp2_pclr = NULL;
+}
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+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(old_comps[cmp].w * old_comps[cmp].h * sizeof(int));
+ 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(nr_channels * nr_entries * sizeof(unsigned int));
+ 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() */
-int jp2_read_bpcc(jp2_struct_t * jp2_struct)
+static opj_bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
+ opj_jp2_box_t *box, opj_jp2_color_t *color)
{
- unsigned int i;
- jp2_box_t box;
+ opj_jp2_cmap_comp_t *cmap;
+ unsigned short i, nr_channels;
- jp2_read_boxhdr(&box);
- if (JP2_BPCC != box.type) {
- fprintf(stderr, "Error: Expected BPCC Marker\n");
- return 1;
- }
+ OPJ_ARG_NOT_USED(box);
+ OPJ_ARG_NOT_USED(jp2);
- for (i = 0; i < jp2_struct->numcomps; i++)
- jp2_struct->comps[i].bpcc = cio_read(1);
+/* Need nr_channels: */
+ if(color->jp2_pclr == NULL) return OPJ_FALSE;
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with BPCC Box\n");
- return 1;
- }
- return 0;
-}
+/* 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;
-void jp2_write_colr(jp2_struct_t * jp2_struct)
+ return OPJ_TRUE;
+}/* jp2_read_cmap() */
+
+static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
{
- jp2_box_t box;
+ opj_jp2_cdef_info_t *info;
+ int color_space;
+ unsigned short i, n, cn, typ, asoc, acn;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_COLR, 4); // COLR
+ color_space = image->color_space;
+ info = color->jp2_cdef->info;
+ n = color->jp2_cdef->n;
- cio_write(jp2_struct->meth, 1); // METH
- cio_write(jp2_struct->precedence, 1); // PRECEDENCE
- cio_write(jp2_struct->approx, 1); // APPROX
+ for(i = 0; i < n; ++i)
+ {
+/* WATCH: acn = asoc - 1 ! */
+ if((asoc = info[i].asoc) == 0) continue;
- if (jp2_struct->meth == 1)
- cio_write(jp2_struct->enumcs, 4); // EnumCS
- else
- cio_write(0, 1); // PROFILE (??)
+ cn = info[i].cn; typ = info[i].typ; acn = asoc - 1;
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
-}
+ if(cn != acn)
+ {
+ opj_image_comp_t saved;
-int jp2_read_colr(jp2_struct_t * jp2_struct)
-{
- jp2_box_t box;
+ 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));
- jp2_read_boxhdr(&box);
- if (JP2_COLR != box.type) {
- fprintf(stderr, "Error: Expected COLR Marker\n");
- return 1;
+ info[i].asoc = cn + 1;
+ info[acn].asoc = info[acn].cn + 1;
}
+ }
+ if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info);
- jp2_struct->meth = cio_read(1); // METH
- jp2_struct->precedence = cio_read(1); // PRECEDENCE
- jp2_struct->approx = cio_read(1); // APPROX
+ opj_free(color->jp2_cdef); color->jp2_cdef = NULL;
- if (jp2_struct->meth == 1)
- jp2_struct->enumcs = cio_read(4); // EnumCS
- else
- cio_read(1); // PROFILE
+}/* jp2_apply_cdef() */
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with BPCC Box\n");
- return 1;
- }
- return 0;
-}
+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;
-/*
-* Write the JP2H box
-*
-* JP2 Header box
-*
+ 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.'
*/
-void jp2_write_jp2h(jp2_struct_t * jp2_struct)
-{
- jp2_box_t box;
+ if(color->jp2_cdef) return OPJ_FALSE;
- box.init_pos = cio_tell();
- cio_skip(4);;
- cio_write(JP2_JP2H, 4); /* JP2H */
+ if((n = (unsigned short)cio_read(cio, 2)) == 0) return OPJ_FALSE; /* szukw000: FIXME */
- jp2_write_ihdr(jp2_struct);
+ info = (opj_jp2_cdef_info_t*)
+ opj_malloc(n * sizeof(opj_jp2_cdef_info_t));
- if (jp2_struct->bpc == 255)
- jp2_write_bpcc(jp2_struct);
- jp2_write_colr(jp2_struct);
+ color->jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
+ color->jp2_cdef->info = info;
+ color->jp2_cdef->n = n;
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
-}
+ 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() */
-/*
-* Read the JP2H box
-*
-* JP2 Header box
-*
-*/
-int jp2_read_jp2h(jp2_struct_t * jp2_struct)
+static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio,
+ opj_jp2_box_t *box, opj_jp2_color_t *color)
{
- jp2_box_t box;
+ int skip_len;
+ opj_common_ptr cinfo;
- jp2_read_boxhdr(&box);
- if (JP2_JP2H != box.type) {
- fprintf(stderr, "Error: Expected JP2H Marker\n");
- return 1;
+/* 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;
- if (jp2_read_ihdr(jp2_struct))
- return 1;
+ start = cio_getbp(cio);
+ color->icc_profile_buf = (unsigned char*)opj_malloc(skip_len);
+ color->icc_profile_len = skip_len;
- if (jp2_struct->bpc == 255)
- if (jp2_read_bpcc(jp2_struct))
- return 1;
- if (jp2_read_colr(jp2_struct))
- return 1;
+ cio_skip(cio, box->init_pos + box->length - cio_tell(cio));
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with JP2H Box\n");
- return 1;
+ memcpy(color->icc_profile_buf, start, skip_len);
}
- return 0;
-}
+ }
-/*
-* Write the FTYP box
-*
-* File type box
-*
-*/
-void jp2_write_ftyp(jp2_struct_t * jp2_struct)
+ 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)
{
- unsigned int i;
- jp2_box_t box;
+ 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;
+ }
+ 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))
+ {
+ 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))
+ {
+ 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))
+ {
+ 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))
+ {
+ 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;
+ }
+ 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);
+}
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_FTYP, 4); /* FTYP */
+static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
+ unsigned int i;
+ opj_jp2_box_t box;
- cio_write(jp2_struct->brand, 4); /* BR */
- cio_write(jp2_struct->minversion, 4); /* MinV */
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_FTYP, 4); /* FTYP */
- for (i = 0; i < jp2_struct->numcl; i++)
- cio_write(jp2_struct->cl[i], 4); /* CL */
+ cio_write(cio, jp2->brand, 4); /* BR */
+ cio_write(cio, jp2->minversion, 4); /* MinV */
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+ 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);
}
-/*
-* Read the FTYP box
-*
-* File type box
-*
-*/
-int jp2_read_ftyp(jp2_struct_t * jp2_struct)
-{
- int i;
- jp2_box_t box;
+static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
+ int i;
+ opj_jp2_box_t box;
- jp2_read_boxhdr(&box);
+ opj_common_ptr cinfo = jp2->cinfo;
- if (JP2_FTYP != box.type) {
- fprintf(stderr, "Error: Excpected FTYP Marker\n");
- return 1;
+ 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;
+}
- jp2_struct->brand = cio_read(4); /* BR */
- jp2_struct->minversion = cio_read(4); /* MinV */
- jp2_struct->numcl = (box.length - 16) / 4;
- jp2_struct->cl =
- (unsigned int *) malloc(jp2_struct->numcl * sizeof(unsigned int));
+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;
- for (i = jp2_struct->numcl; i > 0; i--)
- jp2_struct->cl[i] = cio_read(4); /* CLi */
+ opj_j2k_t *j2k = jp2->j2k;
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with FTYP Box\n");
- return 1;
- }
- return 0;
-}
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_JP2C, 4); /* JP2C */
-int jp2_write_jp2c(j2k_image_t * img, j2k_cp_t * cp, char *jp2_buffer,
- char *index)
-{
- int len;
- jp2_box_t box;
+ /* 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;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_JP2C, 4); // JP2C
+ jp2->j2k_codestream_offset = j2k_codestream_offset;
+ jp2->j2k_codestream_length = j2k_codestream_length;
- len = j2k_encode(img, cp, jp2_buffer, cp->tdx * cp->tdy * 2, index);
+ 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);
- box.length = cio_tell() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
- return box.length;
+ return box.length;
}
-int jp2_read_jp2c(unsigned char *src, int len, jp2_struct_t * jp2_struct,
- j2k_cp_t * cp)
-{
- jp2_box_t box;
-
- jp2_read_boxhdr(&box);
- if (JP2_JP2C != box.type) {
- fprintf(stderr, "Error: Expected JP2C Marker\n");
- return 1;
- }
+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;
- src += cio_tell();
+ opj_common_ptr cinfo = jp2->cinfo;
- if (j2k_decode(src, len, jp2_struct->image, cp) == 0) {
- fprintf(stderr, "JP2F box: failed to decode J2K bitstream image!\n");
- return 1;
+ 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) {
+ 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);
+ *j2k_codestream_length = box.length - 8;
- return 0;
+ return OPJ_TRUE;
}
-void jp2_write_jp()
-{
- jp2_box_t box;
+static void jp2_write_jp(opj_cio_t *cio) {
+ opj_jp2_box_t box;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_JP, 4); // JP
- cio_write(0x0d0a870a, 4);
+ 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() - box.init_pos;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+ 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);
}
-/*
-* Read the JP box
-*
-* JPEG 2000 signature
-*
-* return 1 if error else 0
-*/
-int jp2_read_jp()
-{
- jp2_box_t box;
+static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) {
+ opj_jp2_box_t box;
- jp2_read_boxhdr(&box);
- if (JP2_JP != box.type) {
- fprintf(stderr, "Error: Expected JP Marker\n");
- return 1;
- }
- if (0x0d0a870a != cio_read(4)) {
- fprintf(stderr, "Error with JP Marker\n");
- return 1;
- }
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with JP Box size\n");
- return 1;
+ 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;
}
- return 0;
+ 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;
}
-int jp2_decode(unsigned char *src, int len, jp2_struct_t * jp2_struct,
- j2k_cp_t * cp)
+
+static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
+{
+ int len, lenp;
+
+ lenp = cio_tell( cio);
+ cio_skip( cio, 4); /* L [at the end] */
+ cio_write( cio, JPIP_FIDX, 4); /* IPTR */
+
+ write_prxy( offset_jp2c, length_jp2c, offset_idx, length_idx, cio);
+
+ len = cio_tell( cio)-lenp;
+ cio_seek( cio, lenp);
+ cio_write( cio, len, 4); /* L */
+ cio_seek( cio, lenp+len);
+
+ return len;
+}
+
+static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
{
- cio_init(src, len);
-
- if (jp2_read_jp())
- return 1;
- if (jp2_read_ftyp(jp2_struct))
- return 1;
- if (jp2_read_jp2h(jp2_struct))
- return 1;
- if (jp2_read_jp2c(src, len, jp2_struct, cp))
- return 1;
- return 0;
+ int len, lenp;
+
+ lenp = cio_tell( cio);
+ cio_skip( cio, 4); /* L [at the end] */
+ cio_write( cio, JPIP_PRXY, 4); /* IPTR */
+
+ cio_write( cio, offset_jp2c, 8); /* OOFF */
+ cio_write( cio, length_jp2c, 4); /* OBH part 1 */
+ cio_write( cio, JP2_JP2C, 4); /* OBH part 2 */
+
+ cio_write( cio, 1,1); /* NI */
+
+ cio_write( cio, offset_idx, 8); /* IOFF */
+ cio_write( cio, length_idx, 4); /* IBH part 1 */
+ cio_write( cio, JPIP_CIDX, 4); /* IBH part 2 */
+
+ len = cio_tell( cio)-lenp;
+ cio_seek( cio, lenp);
+ cio_write( cio, len, 4); /* L */
+ cio_seek( cio, lenp+len);
}
-int jp2_encode(jp2_struct_t * jp2_struct, j2k_cp_t * cp, char *output,
- char *index)
+static void write_iptr( int offset, int length, opj_cio_t *cio)
{
- int len;
+ int len, lenp;
+
+ lenp = cio_tell( cio);
+ cio_skip( cio, 4); /* L [at the end] */
+ cio_write( cio, JPIP_IPTR, 4); /* IPTR */
+
+ cio_write( cio, offset, 8);
+ cio_write( cio, length, 8);
+
+ len = cio_tell( cio)-lenp;
+ cio_seek( cio, lenp);
+ cio_write( cio, len, 4); /* L */
+ cio_seek( cio, lenp+len);
+}
+
+
+/* ----------------------------------------------------------------------- */
+/* 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);
+ }
+}
- jp2_write_jp();
- jp2_write_ftyp(jp2_struct);
- jp2_write_jp2h(jp2_struct);
- len = jp2_write_jp2c(jp2_struct->image, cp, output, index);
+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 */
+
+ jp2->jpip_on = parameters->jpip_on;
+}
- return cio_tell();
+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_cidx, pos_jp2c, len_jp2c, len_cidx, end_pos, pos_fidx, len_fidx;
+ 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);
+
+ if( jp2->jpip_on){
+ pos_iptr = cio_tell( cio);
+ cio_skip( cio, 24); /* IPTR further ! */
+
+ pos_jp2c = cio_tell( 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;
+ }
+
+ if( jp2->jpip_on){
+ pos_cidx = cio_tell( cio);
+
+ len_cidx = write_cidx( pos_jp2c+8, cio, image, *cstr_info, len_jp2c-8);
+
+ pos_fidx = cio_tell( cio);
+ len_fidx = write_fidx( pos_jp2c, len_jp2c, pos_cidx, len_cidx, cio);
+
+ end_pos = cio_tell( cio);
+
+ cio_seek( cio, pos_iptr);
+ write_iptr( pos_fidx, len_fidx, cio);
+
+ cio_seek( cio, end_pos);
+ }
+
+ return OPJ_TRUE;
}
projects / openjpeg.git / blobdiff