--- /dev/null
+/*
+* 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.
+*/
+
+#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
+*
+*/
+
+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;
+}
+
+/*
+*
+* Initialisation of a Standard JP2 structure
+*/
+
+int jp2_init_stdjp2(jp2_struct_t * jp2_struct, j2k_image_t * img)
+{
+ int depth_0, sign, depth, i;
+
+
+ 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));
+
+ depth_0 = img->comps[0].prec - 1;
+ sign = img->comps[0].sgnd;
+ jp2_struct->bpc = depth_0 + (sign << 7);
+
+ 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_struct->C = 7; // C : Always 7
+ jp2_struct->UnkC = 0; // UnkC, colorspace specified in colr box
+ jp2_struct->IPR = 0; // IPR, no intellectual property
+
+ for (i = 0; i < img->numcomps; i++)
+ jp2_struct->comps[i].bpcc =
+ img->comps[i].prec - 1 + (img->comps[i].sgnd << 7);
+
+ jp2_struct->precedence = 0; // PRECEDENCE
+ jp2_struct->approx = 0; // APPROX
+
+ 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;
+}
+
+
+void jp2_write_url(char *Idx_file)
+{
+ unsigned int i;
+ char str[256];
+ jp2_box_t box;
+
+ sprintf(str, "%s", Idx_file);
+
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_URL, 4); // DBTL
+ cio_write(0, 1); // VERS
+ cio_write(0, 3); // FLAG
+
+ for (i = 0; i < strlen(str); i++) {
+ cio_write(str[i], 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);
+}
+
+/*
+* 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;
+ }
+
+ jp2_struct->h = cio_read(4); // HEIGHT
+ jp2_struct->w = cio_read(4); // WIDTH
+ jp2_struct->numcomps = cio_read(2); // NC
+
+ jp2_struct->bpc = cio_read(1); // BPC
+
+ jp2_struct->C = cio_read(1); // C
+ jp2_struct->UnkC = cio_read(1); // UnkC
+ jp2_struct->IPR = cio_read(1); // IPR
+
+ if (cio_tell() - box.init_pos != box.length) {
+ fprintf(stderr, "Error with IHDR Box\n");
+ return 1;
+ }
+ return 0;
+}
+
+void jp2_write_ihdr(jp2_struct_t * jp2_struct)
+{
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_IHDR, 4); // IHDR
+
+ cio_write(jp2_struct->h, 4); // HEIGHT
+ cio_write(jp2_struct->w, 4); // WIDTH
+ cio_write(jp2_struct->numcomps, 2); // NC
+
+ cio_write(jp2_struct->bpc, 1); // BPC
+
+ 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
+
+ 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);
+}
+
+
+void jp2_write_bpcc(jp2_struct_t * jp2_struct)
+{
+ unsigned int i;
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_BPCC, 4); // BPCC
+
+ for (i = 0; i < jp2_struct->numcomps; i++)
+ cio_write(jp2_struct->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);
+}
+
+
+int jp2_read_bpcc(jp2_struct_t * jp2_struct)
+{
+ unsigned int i;
+ jp2_box_t box;
+
+ jp2_read_boxhdr(&box);
+ if (JP2_BPCC != box.type) {
+ fprintf(stderr, "Error: Expected BPCC Marker\n");
+ return 1;
+ }
+
+ for (i = 0; i < jp2_struct->numcomps; i++)
+ jp2_struct->comps[i].bpcc = cio_read(1);
+
+ if (cio_tell() - box.init_pos != box.length) {
+ fprintf(stderr, "Error with BPCC Box\n");
+ return 1;
+ }
+ return 0;
+}
+
+void jp2_write_colr(jp2_struct_t * jp2_struct)
+{
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_COLR, 4); // COLR
+
+ cio_write(jp2_struct->meth, 1); // METH
+ cio_write(jp2_struct->precedence, 1); // PRECEDENCE
+ cio_write(jp2_struct->approx, 1); // APPROX
+
+ if (jp2_struct->meth == 1)
+ cio_write(jp2_struct->enumcs, 4); // EnumCS
+ else
+ cio_write(0, 1); // PROFILE (??)
+
+ 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);
+}
+
+int jp2_read_colr(jp2_struct_t * jp2_struct)
+{
+ jp2_box_t box;
+
+ jp2_read_boxhdr(&box);
+ if (JP2_COLR != box.type) {
+ fprintf(stderr, "Error: Expected COLR Marker\n");
+ return 1;
+ }
+
+ jp2_struct->meth = cio_read(1); // METH
+ jp2_struct->precedence = cio_read(1); // PRECEDENCE
+ jp2_struct->approx = cio_read(1); // APPROX
+
+ if (jp2_struct->meth == 1)
+ jp2_struct->enumcs = cio_read(4); // EnumCS
+ else
+ cio_read(1); // PROFILE
+
+ if (cio_tell() - box.init_pos != box.length) {
+ fprintf(stderr, "Error with BPCC Box\n");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+* Write the JP2H box
+*
+* JP2 Header box
+*
+*/
+void jp2_write_jp2h(jp2_struct_t * jp2_struct)
+{
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);;
+ cio_write(JP2_JP2H, 4); /* JP2H */
+
+ jp2_write_ihdr(jp2_struct);
+
+ if (jp2_struct->bpc == 255)
+ jp2_write_bpcc(jp2_struct);
+ jp2_write_colr(jp2_struct);
+
+ 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);
+}
+
+
+/*
+* Read the JP2H box
+*
+* JP2 Header box
+*
+*/
+int jp2_read_jp2h(jp2_struct_t * jp2_struct)
+{
+ jp2_box_t box;
+
+ jp2_read_boxhdr(&box);
+ if (JP2_JP2H != box.type) {
+ fprintf(stderr, "Error: Expected JP2H Marker\n");
+ return 1;
+ }
+
+ if (jp2_read_ihdr(jp2_struct))
+ return 1;
+
+ if (jp2_struct->bpc == 255)
+ if (jp2_read_bpcc(jp2_struct))
+ return 1;
+ if (jp2_read_colr(jp2_struct))
+ return 1;
+
+ if (cio_tell() - box.init_pos != box.length) {
+ fprintf(stderr, "Error with JP2H Box\n");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+* Write the FTYP box
+*
+* File type box
+*
+*/
+void jp2_write_ftyp(jp2_struct_t * jp2_struct)
+{
+ unsigned int i;
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_FTYP, 4); /* FTYP */
+
+ cio_write(jp2_struct->brand, 4); /* BR */
+ cio_write(jp2_struct->minversion, 4); /* MinV */
+
+ for (i = 0; i < jp2_struct->numcl; i++)
+ cio_write(jp2_struct->cl[i], 4); /* CL */
+
+ 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);
+}
+
+/*
+* Read the FTYP box
+*
+* File type box
+*
+*/
+int jp2_read_ftyp(jp2_struct_t * jp2_struct)
+{
+ int i;
+ jp2_box_t box;
+
+ jp2_read_boxhdr(&box);
+
+ if (JP2_FTYP != box.type) {
+ fprintf(stderr, "Error: Excpected FTYP Marker\n");
+ return 1;
+ }
+
+ 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));
+
+ for (i = jp2_struct->numcl; i > 0; i--)
+ jp2_struct->cl[i] = cio_read(4); /* CLi */
+
+ if (cio_tell() - box.init_pos != box.length) {
+ fprintf(stderr, "Error with FTYP Box\n");
+ return 1;
+ }
+ return 0;
+}
+
+int jp2_write_jp2c(j2k_image_t * img, j2k_cp_t * cp, char *jp2_buffer,
+ char *index)
+{
+ int len;
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_JP2C, 4); // JP2C
+
+ len = j2k_encode(img, cp, jp2_buffer, cp->tdx * cp->tdy * 2, index);
+
+ 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;
+}
+
+int jp2_read_jp2c(unsigned char *src, int len, jp2_struct_t * jp2_struct,
+ j2k_cp_t ** cp, j2k_option_t option)
+{
+ jp2_box_t box;
+
+ jp2_read_boxhdr(&box);
+ if (JP2_JP2C != box.type) {
+ fprintf(stderr, "Error: Expected JP2C Marker\n");
+ return 1;
+ }
+
+ src += cio_tell();
+
+ if (j2k_decode(src, len, &jp2_struct->image, cp, option) == 0) {
+ fprintf(stderr, "JP2F box: failed to decode J2K bitstream image!\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+void jp2_write_jp()
+{
+ jp2_box_t box;
+
+ box.init_pos = cio_tell();
+ cio_skip(4);
+ cio_write(JP2_JP, 4); // JP
+ cio_write(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);
+}
+
+/*
+* Read the JP box
+*
+* JPEG 2000 signature
+*
+* return 1 if error else 0
+*/
+int jp2_read_jp()
+{
+ 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;
+ }
+ return 0;
+
+}
+
+int jp2_decode(unsigned char *src, int len, jp2_struct_t * jp2_struct,
+ j2k_cp_t ** cp, j2k_option_t option)
+{
+ 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, option))
+ return 1;
+ return 0;
+}
+
+int jp2_encode(jp2_struct_t * jp2_struct, j2k_cp_t * cp, char *output,
+ char *index)
+{
+ int len;
+
+ jp2_write_jp();
+ jp2_write_ftyp(jp2_struct);
+ jp2_write_jp2h(jp2_struct);
+ len = jp2_write_jp2c(jp2_struct->image, cp, output, index);
+
+ return cio_tell();
+}
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