/*
-* 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
+ * 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 */
+/*@{*/
+
+#define BOX_SIZE 1024
+
+/** @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);
+
+/**
+ * Reads a IHDR box - Image Header box
+ *
+ * @param p_image_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_image_header_size the size of the image header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the image header is valid, false else.
+ */
+static opj_bool jp2_read_ihdr_v2( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_image_header_data,
+ OPJ_INT32 p_image_header_size,
+ opj_event_mgr_t * p_manager );
+
+static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
+
+/**
+ * Writes the Image Header box - Image Header box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
+static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
+
+/**
+ * Writes the Bit per Component box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
+static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
+
+/**
+ * Reads a Bit per Component box.
+ *
+ * @param p_bpc_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_bpc_header_size the size of the bpc header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the bpc header is valid, fale else.
+ */
+static opj_bool jp2_read_bpcc_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_bpc_header_data,
+ unsigned int p_bpc_header_size,
+ struct opj_event_mgr * p_manager
+ );
+
+static opj_bool jp2_read_cdef_v2( opj_jp2_v2_t * jp2,
+ unsigned char * p_cdef_header_data,
+ OPJ_UINT32 p_cdef_header_size,
+ opj_event_mgr_t * p_manager
+ );
+
+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
+*/
-/*
-*
-* 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);
- if (box->length == 0)
- box->length = cio_numbytesleft() + 12;
- }
- else if (box->length == 0) {
- box->length = cio_numbytesleft() + 8;
- }
- return 0;
+/**
+ * Writes the Colour Specification box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static unsigned char *jp2_write_colr_v2(opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written );
+
+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);
+
+/**
+ * Writes a FTYP box - File type box
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+static opj_bool jp2_write_ftyp_v2( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
+
+/**
+ * Reads a a FTYP box - File type box
+ *
+ * @param p_header_data the data contained in the FTYP box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the FTYP box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the FTYP box is valid.
+ */
+static opj_bool jp2_read_ftyp_v2( opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ OPJ_UINT32 p_header_size,
+ struct opj_event_mgr * p_manager );
+
+/**
+ * Skips the Jpeg2000 Codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+opj_bool jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
+
+/**
+ * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
+ *
+ * @param p_header_data the data contained in the file header box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the file header box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the JP2 Header box was successfully reconized.
+*/
+static opj_bool jp2_read_jp2h_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ unsigned int p_header_size,
+ struct opj_event_mgr * p_manager
+ );
+
+static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
+
+
+/**
+ * Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
+*/
+static opj_bool jp2_write_jp2c_v2( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
+
+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);
+
+/**
+ * Reads a jpeg2000 file signature box.
+ *
+ * @param p_header_data the data contained in the signature box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the signature box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the file signature box is valid.
+ */
+static opj_bool jp2_read_jp_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ unsigned int p_header_size,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+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_image_t *image, opj_jp2_color_t *color);
+/**
+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);
+
+static opj_bool jp2_read_pclr_v2( opj_jp2_v2_t *jp2,
+ unsigned char * p_pclr_header_data,
+ OPJ_UINT32 p_pclr_header_size,
+ opj_event_mgr_t * p_manager
+ );
+
+/**
+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);
+
+
+static opj_bool jp2_read_cmap_v2( opj_jp2_v2_t * jp2,
+ unsigned char * p_cmap_header_data,
+ OPJ_UINT32 p_cmap_header_size,
+ opj_event_mgr_t * p_manager
+ );
+
+/**
+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);
+
+/**
+ * Reads the Color Specification box.
+ *
+ * @param p_colr_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_colr_header_size the size of the color header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the bpc header is valid, fale else.
+*/
+static opj_bool jp2_read_colr_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_colr_header_data,
+ OPJ_UINT32 p_colr_header_size,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+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);
+/*@}*/
+
+/*@}*/
+
+/**
+ * Sets up the procedures to do on writting header after the codestream.
+ * Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void jp2_setup_end_header_writting (opj_jp2_v2_t *jp2);
+
+
+/**
+ * Sets up the procedures to do on reading header after the codestream.
+ * Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2);
+
+/**
+ * Reads a jpeg2000 file header structure.
+ *
+ * @param cio the stream to read data from.
+ * @param jp2 the jpeg2000 file header structure.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the box is valid.
+ */
+opj_bool jp2_read_header_procedure(
+ opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+ * Excutes the given procedures on the given codec.
+ *
+ * @param p_procedure_list the list of procedures to execute
+ * @param jp2 the jpeg2000 file codec to execute the procedures on.
+ * @param cio the stream to execute the procedures on.
+ * @param p_manager the user manager.
+ *
+ * @return true if all the procedures were successfully executed.
+ */
+static opj_bool jp2_exec (
+ opj_jp2_v2_t * jp2,
+ struct opj_procedure_list * p_procedure_list,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+ * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
+ *
+ * @param cio the input stream to read data from.
+ * @param box the box structure to fill.
+ * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
+ * @param p_manager user event manager.
+ *
+ * @return true if the box is reconized, false otherwise
+*/
+static opj_bool jp2_read_boxhdr_v2(
+ opj_jp2_box_t *box,
+ OPJ_UINT32 * p_number_bytes_read,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+ * Finds the execution function related to the given box id.
+ *
+ * @param p_id the id of the handler to fetch.
+ *
+ * @return the given handler or NULL if it could not be found.
+ */
+static const opj_jp2_header_handler_t * jp2_find_handler (int p_id );
+
+/**
+ * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+static void jp2_setup_encoding_validation (opj_jp2_v2_t *jp2);
+
+
+/**
+ * Sets up the procedures to do on writting header. Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void jp2_setup_header_writting (opj_jp2_v2_t *jp2);
+
+/**
+ * The default validation procedure without any extension.
+ *
+ * @param jp2 the jpeg2000 codec to validate.
+ * @param cio the input stream to validate.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the parameters are correct.
+ */
+opj_bool jp2_default_validation ( opj_jp2_v2_t * jp2,
+ struct opj_stream_private *cio,
+ struct opj_event_mgr * p_manager );
+
+/**
+ * Finds the image execution function related to the given box id.
+ *
+ * @param p_id the id of the handler to fetch.
+ *
+ * @return the given handler or NULL if it could not be found.
+ */
+static const opj_jp2_header_handler_t * jp2_img_find_handler (int p_id);
+
+const opj_jp2_header_handler_t jp2_header [] =
+{
+ {JP2_JP,jp2_read_jp_v2},
+ {JP2_FTYP,jp2_read_ftyp_v2},
+ {JP2_JP2H,jp2_read_jp2h_v2}
+};
+
+const opj_jp2_header_handler_t jp2_img_header [] =
+{
+ {JP2_IHDR,jp2_read_ihdr_v2},
+ {JP2_COLR,jp2_read_colr_v2},
+ {JP2_BPCC,jp2_read_bpcc_v2},
+ {JP2_PCLR,jp2_read_pclr_v2},
+ {JP2_CMAP,jp2_read_cmap_v2},
+ {JP2_CDEF,jp2_read_cdef_v2}
+
+};
+
+/**
+ * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
+ *
+ * @param p_data the character string to read data from.
+ * @param box the box structure to fill.
+ * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
+ * @param p_box_max_size the maximum number of bytes in the box.
+ *
+ * @return true if the box is reconized, false otherwise
+*/
+static opj_bool jp2_read_boxhdr_char(
+ opj_jp2_box_t *box,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 * p_number_bytes_read,
+ OPJ_UINT32 p_box_max_size,
+ struct opj_event_mgr * p_manager
+ );
+
+/**
+ * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+static void jp2_setup_decoding_validation (opj_jp2_v2_t *jp2);
+
+/**
+ * Sets up the procedures to do on reading header.
+ * Developpers wanting to extend the library can add their own writting procedures.
+ */
+static void jp2_setup_header_reading (opj_jp2_v2_t *jp2);
+
+
+
+/* ----------------------------------------------------------------------- */
+
+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
+/**
+ * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
+ *
+ * @param cio the input stream to read data from.
+ * @param box the box structure to fill.
+ * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (should usually be 8).
+ * @param p_manager user event manager.
+ *
+ * @return true if the box is reconized, false otherwise
*/
+opj_bool jp2_read_boxhdr_v2(opj_jp2_box_t *box, OPJ_UINT32 * p_number_bytes_read, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
+{
+ /* read header from file */
+ unsigned char l_data_header [8];
+
+ /* preconditions */
+ assert(cio != 00);
+ assert(box != 00);
+ assert(p_number_bytes_read != 00);
+ assert(p_manager != 00);
+
+ *p_number_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
+ if (*p_number_bytes_read != 8) {
+ return OPJ_FALSE;
+ }
+
+ /* process read data */
+ opj_read_bytes(l_data_header,&(box->length), 4);
+ opj_read_bytes(l_data_header+4,&(box->type), 4);
+
+ /* do we have a "special very large box ?" */
+ /* read then the XLBox */
+ if (box->length == 1) {
+ OPJ_UINT32 l_xl_part_size;
+
+ OPJ_UINT32 l_nb_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
+ if (l_nb_bytes_read != 8) {
+ if (l_nb_bytes_read > 0) {
+ *p_number_bytes_read += l_nb_bytes_read;
+ }
+
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(l_data_header,&l_xl_part_size, 4);
+ if (l_xl_part_size != 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
+ return OPJ_FALSE;
+ }
+ opj_read_bytes(l_data_header,&(box->length), 4);
+ }
+ 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;
-int jp2_init_stdjp2(jp2_struct_t * jp2_struct, j2k_image_t * img)
+ jp2_read_boxhdr(cinfo, cio, &box);
+ 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;
+}
+
+/**
+ * Reads a IHDR box - Image Header box
+ *
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_image_header_data pointer to actual data (already read from file)
+ * @param p_image_header_size the size of the image header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the image header is valid, fale else.
+ */
+opj_bool jp2_read_ihdr_v2( opj_jp2_v2_t *jp2,
+ OPJ_BYTE *p_image_header_data,
+ OPJ_INT32 p_image_header_size,
+ opj_event_mgr_t * p_manager
+ )
{
- int depth_0, sign, depth, i;
+ /* preconditions */
+ assert(p_image_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ if (p_image_header_size != 14) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_image_header_data,&(jp2->h),4); /* HEIGHT */
+ p_image_header_data += 4;
+ opj_read_bytes(p_image_header_data,&(jp2->w),4); /* WIDTH */
+ p_image_header_data += 4;
+ opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
+ p_image_header_data += 2;
+
+ /* allocate memory for components */
+ jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
+ if (jp2->comps == 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle image header (ihdr)\n");
+ return OPJ_FALSE;
+ }
+ memset(jp2->comps,0,jp2->numcomps * sizeof(opj_jp2_comps_t));
+
+ opj_read_bytes(p_image_header_data,&(jp2->bpc),1); /* BPC */
+ ++ p_image_header_data;
+
+ /* if equal to 0 then need a BPC box (cf. chapter about image header box of the norm) */
+ /*if (jp2->bpc == 0){
+ indicate with a flag that we will wait a BPC box
+ }*/
+
+ opj_read_bytes(p_image_header_data,&(jp2->C),1); /* C */
+ ++ p_image_header_data;
+
+ /* Should be equal to 7 cf. chapter about image header box of the norm */
+ if (jp2->C != 7){
+ opj_event_msg_v2(p_manager, EVT_INFO, "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n", jp2->C);
+ }
+
+ opj_read_bytes(p_image_header_data,&(jp2->UnkC),1); /* UnkC */
+ ++ p_image_header_data;
+ opj_read_bytes(p_image_header_data,&(jp2->IPR),1); /* IPR */
+ ++ p_image_header_data;
+
+ return OPJ_TRUE;
+}
- 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(jp2_struct->numcomps * sizeof(jp2_comps_t));
+static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
+ opj_jp2_box_t box;
- depth_0 = img->comps[0].prec - 1;
- sign = img->comps[0].sgnd;
- jp2_struct->bpc = depth_0 + (sign << 7);
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_IHDR, 4); /* IHDR */
- 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;
- }
+ 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 */
- 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
+ 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);
+}
- for (i = 0; i < img->numcomps; i++)
- jp2_struct->comps[i].bpcc =
- img->comps[i].prec - 1 + (img->comps[i].sgnd << 7);
+/**
+ * Writes the Image Header box - Image Header box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+static unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written )
+{
+ unsigned char * l_ihdr_data,* l_current_ihdr_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ /* default image header is 22 bytes wide */
+ l_ihdr_data = (unsigned char *) opj_malloc(22);
+ if (l_ihdr_data == 00) {
+ return 00;
+ }
+ memset(l_ihdr_data,0,22);
+
+ l_current_ihdr_ptr = l_ihdr_data;
+
+ opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr,JP2_IHDR, 4); /* IHDR */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr,jp2->h, 4); /* HEIGHT */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
+ l_current_ihdr_ptr+=4;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
+ l_current_ihdr_ptr+=2;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC, 1); /* UnkC, colorspace unknown */
+ ++l_current_ihdr_ptr;
+
+ opj_write_bytes(l_current_ihdr_ptr, jp2->IPR, 1); /* IPR, no intellectual property */
+ ++l_current_ihdr_ptr;
+
+ *p_nb_bytes_written = 22;
+
+ return l_ihdr_data;
+}
- jp2_struct->precedence = 0; // PRECEDENCE
- jp2_struct->approx = 0; // APPROX
+static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
+ unsigned int i;
+ opj_jp2_box_t box;
- if ((img->numcomps == 1 || img->numcomps == 3)
- && (jp2_struct->bpc != 255))
- jp2_struct->meth = 1;
- else
- jp2_struct->meth = 2;
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_BPCC, 4); /* BPCC */
- 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 (??)
+ for (i = 0; i < jp2->numcomps; i++) {
+ cio_write(cio, jp2->comps[i].bpcc, 1);
+ }
- 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;
+ 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_url(char *Idx_file)
+/**
+ * Writes the Bit per Component box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
+*/
+unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written )
{
- unsigned int i;
- char str[256];
- jp2_box_t box;
+ unsigned int i;
+ /* room for 8 bytes for box and 1 byte for each component */
+ int l_bpcc_size = 8 + jp2->numcomps;
+ unsigned char * l_bpcc_data,* l_current_bpcc_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ l_bpcc_data = (unsigned char *) opj_malloc(l_bpcc_size);
+ if (l_bpcc_data == 00) {
+ return 00;
+ }
+ memset(l_bpcc_data,0,l_bpcc_size);
+
+ l_current_bpcc_ptr = l_bpcc_data;
+
+ opj_write_bytes(l_current_bpcc_ptr,l_bpcc_size,4); /* write box size */
+ l_current_bpcc_ptr += 4;
+
+ opj_write_bytes(l_current_bpcc_ptr,JP2_BPCC,4); /* BPCC */
+ l_current_bpcc_ptr += 4;
+
+ for (i = 0; i < jp2->numcomps; ++i) {
+ opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc, 1); /* write each component information */
+ ++l_current_bpcc_ptr;
+ }
+
+ *p_nb_bytes_written = l_bpcc_size;
+
+ return l_bpcc_data;
+}
- 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
+static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
+ unsigned int i;
+ opj_jp2_box_t box;
- for (i = 0; i < strlen(str); i++) {
- cio_write(str[i], 1);
- }
+ 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 OPJ_FALSE;
+ }
+
+ for (i = 0; i < jp2->numcomps; i++) {
+ jp2->comps[i].bpcc = cio_read(cio, 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 (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;
}
-/*
-* Read the IHDR box
-*
-* Image Header box
-*
+/**
+ * Reads a Bit per Component box.
+ *
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_bpc_header_data pointer to actual data (already read from file)
+ * @param p_bpc_header_size pointer that will hold the size of the bpc header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the bpc header is valid, false otherwise.
+ */
+opj_bool jp2_read_bpcc_v2( opj_jp2_v2_t *jp2,
+ unsigned char * p_bpc_header_data,
+ unsigned int p_bpc_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_UINT32 i;
+
+ /* preconditions */
+ assert(p_bpc_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ /* TODO MSD */
+ /*if (jp2->bpc != 0 ){
+ opj_event_msg_v2(p_manager, EVT_WARNING, "A BPCC header box is available although BPC is different to zero (%d)\n",jp2->bpc);
+ }*/
+
+ /* and length is relevant */
+ if (p_bpc_header_size != jp2->numcomps) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
+ return OPJ_FALSE;
+ }
+
+ /* read info for each component */
+ for (i = 0; i < jp2->numcomps; ++i) {
+ opj_read_bytes(p_bpc_header_data,&jp2->comps[i].bpcc ,1); /* read each BPCC component */
+ ++p_bpc_header_data;
+ }
+
+ 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);
+}
+
+/**
+ * Writes the Colour Specification box.
+ *
+ * @param jp2 jpeg2000 file codec.
+ * @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
+ *
+ * @return the data being copied.
*/
-int jp2_read_ihdr(jp2_struct_t * jp2_struct)
+unsigned char *jp2_write_colr_v2( opj_jp2_v2_t *jp2,
+ unsigned int * p_nb_bytes_written )
+{
+ /* room for 8 bytes for box 3 for common data and variable upon profile*/
+ unsigned int l_colr_size = 11;
+ unsigned char * l_colr_data,* l_current_colr_ptr;
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ switch (jp2->meth) {
+ case 1 :
+ l_colr_size += 4;
+ break;
+ case 2 :
+ ++l_colr_size;
+ break;
+ default :
+ return 00;
+ }
+
+ l_colr_data = (unsigned char *) opj_malloc(l_colr_size);
+ if (l_colr_data == 00) {
+ return 00;
+ }
+ memset(l_colr_data,0,l_colr_size);
+
+ l_current_colr_ptr = l_colr_data;
+
+ opj_write_bytes(l_current_colr_ptr,l_colr_size,4); /* write box size */
+ l_current_colr_ptr += 4;
+
+ opj_write_bytes(l_current_colr_ptr,JP2_COLR,4); /* BPCC */
+ l_current_colr_ptr += 4;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->meth,1); /* METH */
+ ++l_current_colr_ptr;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->precedence,1); /* PRECEDENCE */
+ ++l_current_colr_ptr;
+
+ opj_write_bytes(l_current_colr_ptr, jp2->approx,1); /* APPROX */
+ ++l_current_colr_ptr;
+
+ if (jp2->meth == 1) {
+ opj_write_bytes(l_current_colr_ptr, jp2->enumcs,4); /* EnumCS */
+ }
+ else {
+ opj_write_bytes(l_current_colr_ptr, 0, 1); /* PROFILE (??) */
+ }
+
+ *p_nb_bytes_written = l_colr_size;
+
+ return l_colr_data;
+}
+
+static void jp2_free_pclr(opj_jp2_color_t *color)
{
- jp2_box_t box;
+ opj_free(color->jp2_pclr->channel_sign);
+ opj_free(color->jp2_pclr->channel_size);
+ opj_free(color->jp2_pclr->entries);
- jp2_read_boxhdr(&box);
- if (JP2_IHDR != box.type) {
- fprintf(stderr, "Error: Expected IHDR Marker\n");
- return 1;
- }
+ if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap);
- jp2_struct->h = cio_read(4); // HEIGHT
- jp2_struct->w = cio_read(4); // WIDTH
- jp2_struct->numcomps = cio_read(2); // NC
+ opj_free(color->jp2_pclr); color->jp2_pclr = NULL;
+}
- jp2_struct->bpc = cio_read(1); // BPC
+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);
+}
- 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;
+static void jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
+{
+ opj_image_comp_t *old_comps, *new_comps;
+ OPJ_BYTE *channel_size, *channel_sign;
+ OPJ_UINT32 *entries;
+ opj_jp2_cmap_comp_t *cmap;
+ OPJ_INT32 *src, *dst;
+ OPJ_UINT32 j, max;
+ OPJ_UINT16 i, nr_channels, cmp, pcol;
+ OPJ_INT32 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;
+
+ new_comps[pcol] = old_comps[cmp];
+
+ /* Direct use */
+ if(cmap[i].mtyp == 0){
+ 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 0;
+ }
+
+ return OPJ_TRUE;
+}/* jp2_read_pclr() */
+
+/**
+ * Reads a palette box.
+ *
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_pclr_header_data pointer to actual data (already read from file)
+ * @param p_pclr_header_size pointer that will hold the size of the PCLR header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the bpc header is valid, fale else.
+ */
+opj_bool jp2_read_pclr_v2( opj_jp2_v2_t *jp2,
+ unsigned char * p_pclr_header_data,
+ OPJ_UINT32 p_pclr_header_size,
+ opj_event_mgr_t * p_manager
+ ){
+ opj_jp2_pclr_t *jp2_pclr;
+ OPJ_BYTE *channel_size, *channel_sign;
+ OPJ_UINT32 *entries;
+ OPJ_UINT16 nr_entries,nr_channels;
+ OPJ_UINT16 i, j;
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(p_pclr_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+ (void)p_pclr_header_size;
+
+ if(jp2->color.jp2_pclr)
+ return OPJ_FALSE;
+
+ opj_read_bytes(p_pclr_header_data, &l_value , 2); /* NE */
+ p_pclr_header_data += 2;
+ nr_entries = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_pclr_header_data, &l_value , 1); /* NPC */
+ ++p_pclr_header_data;
+ nr_channels = (OPJ_UINT16) l_value;
+
+ entries = (OPJ_UINT32*) opj_malloc(nr_channels * nr_entries * sizeof(OPJ_UINT32));
+ channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
+ channel_sign = (OPJ_BYTE*) 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;
+
+ jp2->color.jp2_pclr = jp2_pclr;
+
+ for(i = 0; i < nr_channels; ++i) {
+ opj_read_bytes(p_pclr_header_data, &l_value , 1); /* Bi */
+ ++p_pclr_header_data;
+
+ channel_size[i] = (l_value & 0x7f) + 1;
+ channel_sign[i] = (l_value & 0x80)? 1 : 0;
+ }
+
+ for(j = 0; j < nr_entries; ++j) {
+ for(i = 0; i < nr_channels; ++i) {
+ int bytes_to_read = (channel_size[i]+7)>>3;
+
+ opj_read_bytes(p_pclr_header_data, &l_value , bytes_to_read); /* Cji */
+ p_pclr_header_data += bytes_to_read;
+ *entries = (OPJ_UINT32) l_value;
+ entries++;
+ }
+ }
+
+ return OPJ_TRUE;
+}
+
+
+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() */
+
+/**
+ * Reads the Component Mapping box.
+ *
+ * @param p_cmap_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_cmap_header_size pointer that will hold the size of the color header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the cdef header is valid, false else.
+*/
+static opj_bool jp2_read_cmap_v2( opj_jp2_v2_t * jp2,
+ unsigned char * p_cmap_header_data,
+ OPJ_UINT32 p_cmap_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_cmap_comp_t *cmap;
+ OPJ_BYTE i, nr_channels;
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_cmap_header_data != 00);
+ assert(p_manager != 00);
+ (void)p_cmap_header_size;
+
+ /* Need nr_channels: */
+ if(jp2->color.jp2_pclr == NULL) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Need to read a PCLR box before the CMAP box.\n");
+ return OPJ_FALSE;
+ }
+
+ /* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
+ * inside a JP2 Header box' :
+ */
+ if(jp2->color.jp2_pclr->cmap) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
+ return OPJ_FALSE;
+ }
+
+ nr_channels = jp2->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) {
+ opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
+ p_cmap_header_data +=2;
+ cmap[i].cmp = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
+ ++p_cmap_header_data;
+ cmap[i].mtyp = (OPJ_BYTE) l_value;
+
+ opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
+ ++p_cmap_header_data;
+ cmap[i].pcol = (OPJ_BYTE) l_value;
+ }
+
+ jp2->color.jp2_pclr->cmap = cmap;
+
+ return OPJ_TRUE;
}
-void jp2_write_ihdr(jp2_struct_t * jp2_struct)
+static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
{
- jp2_box_t box;
+ opj_jp2_cdef_info_t *info;
+ OPJ_INT32 color_space;
+ OPJ_UINT16 i, n, cn, typ, asoc, acn;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_IHDR, 4); // IHDR
+ color_space = image->color_space;
+ info = color->jp2_cdef->info;
+ n = color->jp2_cdef->n;
- cio_write(jp2_struct->h, 4); // HEIGHT
- cio_write(jp2_struct->w, 4); // WIDTH
- cio_write(jp2_struct->numcomps, 2); // NC
+ for(i = 0; i < n; ++i)
+ {
+ /* WATCH: acn = asoc - 1 ! */
+ if((asoc = info[i].asoc) == 0) continue;
- cio_write(jp2_struct->bpc, 1); // BPC
+ cn = info[i].cn; typ = info[i].typ; acn = asoc - 1;
- 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
+ if(cn != acn)
+ {
+ opj_image_comp_t saved;
- 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);
-}
+ 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;
-void jp2_write_bpcc(jp2_struct_t * jp2_struct)
+}/* 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)
{
- unsigned int i;
- jp2_box_t box;
+ 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() */
+
+/**
+ * Reads the Component Definition box.
+ *
+ * @param p_cdef_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_cdef_header_size pointer that will hold the size of the color header
+ * @param p_manager the user event manager.
+ *
+ * @return true if the cdef header is valid, false else.
+*/
+static opj_bool jp2_read_cdef_v2( opj_jp2_v2_t * jp2,
+ unsigned char * p_cdef_header_data,
+ OPJ_UINT32 p_cdef_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_jp2_cdef_info_t *cdef_info;
+ unsigned short i;
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_cdef_header_data != 00);
+ assert(p_manager != 00);
+ (void)p_cdef_header_size;
+
+ /* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
+ * inside a JP2 Header box.'*/
+ if(jp2->color.jp2_cdef) return OPJ_FALSE;
+
+ opj_read_bytes(p_cdef_header_data,&l_value ,2); /* N */
+ p_cdef_header_data+= 2;
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_BPCC, 4); // BPCC
+ if ( (OPJ_UINT16)l_value == 0){ /* szukw000: FIXME */
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Number of channel description is equal to zero in CDEF box.\n");
+ return OPJ_FALSE;
+ }
- for (i = 0; i < jp2_struct->numcomps; i++)
- cio_write(jp2_struct->comps[i].bpcc, 1);
+ cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
- 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);
+ jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
+ jp2->color.jp2_cdef->info = cdef_info;
+ jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
+
+ for(i = 0; i < jp2->color.jp2_cdef->n; ++i) {
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
+ p_cdef_header_data +=2;
+ cdef_info[i].cn = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
+ p_cdef_header_data +=2;
+ cdef_info[i].typ = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
+ p_cdef_header_data +=2;
+ cdef_info[i].asoc = (OPJ_UINT16) l_value;
+ }
+
+ return OPJ_TRUE;
}
-int jp2_read_bpcc(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)
{
- unsigned int i;
- jp2_box_t box;
+ int skip_len;
+ opj_common_ptr cinfo;
- jp2_read_boxhdr(&box);
- if (JP2_BPCC != box.type) {
- fprintf(stderr, "Error: Expected BPCC 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;
+
+ start = cio_getbp(cio);
+ color->icc_profile_buf = (unsigned char*)opj_malloc(skip_len);
+ color->icc_profile_len = skip_len;
- for (i = 0; i < jp2_struct->numcomps; i++)
- jp2_struct->comps[i].bpcc = cio_read(1);
+ cio_skip(cio, box->init_pos + box->length - cio_tell(cio));
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with BPCC Box\n");
- return 1;
+ memcpy(color->icc_profile_buf, start, skip_len);
}
- return 0;
+ }
+
+ 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() */
+
+/**
+ * Reads the Colour Specification box.
+ *
+ * @param p_colr_header_data pointer to actual data (already read from file)
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_colr_header_size pointer that will hold the size of the color header
+ * @param p_colr_header_max_size maximum size of the header, any size bigger than this value should result the function to output false.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the bpc header is valid, fale else.
+*/
+static opj_bool jp2_read_colr_v2( opj_jp2_v2_t * jp2,
+ unsigned char * p_colr_header_data,
+ OPJ_UINT32 p_colr_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_colr_header_data != 00);
+ assert(p_manager != 00);
+
+ if (p_colr_header_size < 3) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
+ return OPJ_FALSE;
+ }
+
+ /* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
+ * Specification boxes after the first.'
+ */
+ if(jp2->color.jp2_has_colr) {
+ opj_event_msg_v2(p_manager, EVT_INFO, "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
+ p_colr_header_data += p_colr_header_size;
+ return OPJ_TRUE;
+ }
+
+ opj_read_bytes(p_colr_header_data,&jp2->meth ,1); /* METH */
+ ++p_colr_header_data;
+
+ opj_read_bytes(p_colr_header_data,&jp2->precedence ,1); /* PRECEDENCE */
+ ++p_colr_header_data;
+
+ opj_read_bytes(p_colr_header_data,&jp2->approx ,1); /* APPROX */
+ ++p_colr_header_data;
+
+ if (jp2->meth == 1) {
+ if (p_colr_header_size != 7) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
+ }
+ else if (jp2->meth == 2) {
+ /* ICC profile */
+ int it_icc_value = 0;
+ int icc_len = p_colr_header_size - 3;
+
+ jp2->color.icc_profile_len = icc_len;
+ jp2->color.icc_profile_buf = (unsigned char*) opj_malloc(icc_len);
+
+ memset(jp2->color.icc_profile_buf, 0, icc_len * sizeof(unsigned char));
+
+ for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value)
+ {
+ opj_read_bytes(p_colr_header_data,&l_value,1); /* icc values */
+ ++p_colr_header_data;
+ jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
+ }
+
+ }
+ else /* TODO MSD */
+ opj_event_msg_v2(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), so we will skip the fields following the approx field.\n", jp2->meth);
+
+ jp2->color.jp2_has_colr = 1;
+
+ return OPJ_TRUE;
}
-void jp2_write_colr(jp2_struct_t * jp2_struct)
+opj_bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color)
{
- jp2_box_t box;
+ opj_jp2_box_t box;
+ int jp2h_end;
+
+ 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 OPJ_FALSE;
+ }
+ cio_skip(cio, box.length - 8);
+
+ if(cio->bp >= cio->end) return OPJ_FALSE;
+
+ jp2_read_boxhdr(cinfo, cio, &box);
+ }
+ } 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;
+ }
+ jp2_read_boxhdr(cinfo, cio, &box);
+
+ 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);
+ }
+ jp2_read_boxhdr(cinfo, cio, &box);
+ 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);
+ }
+ jp2_read_boxhdr(cinfo, cio, &box);
+ 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);
+ }
+ jp2_read_boxhdr(cinfo, cio, &box);
+ 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);
+ }
+ jp2_read_boxhdr(cinfo, cio, &box);
+ continue;
+ }
+ cio_seek(cio, box.init_pos + 8);
+ cio_skip(cio, box.length - 8);
+ jp2_read_boxhdr(cinfo, cio, &box);
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_COLR, 4); // COLR
+ }/* while(cio_tell(cio) < box_end) */
- cio_write(jp2_struct->meth, 1); // METH
- cio_write(jp2_struct->precedence, 1); // PRECEDENCE
- cio_write(jp2_struct->approx, 1); // APPROX
+ cio_seek(cio, jp2h_end);
- if (jp2_struct->meth == 1)
- cio_write(jp2_struct->enumcs, 4); // EnumCS
- else
- cio_write(0, 1); // PROFILE (??)
+/* Part 1, I.5.3.3 : 'must contain at least one' */
+ return (color->jp2_has_colr == 1);
+
+}/* jp2_read_jp2h() */
- 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)
+
+opj_bool opj_jp2_decode(opj_jp2_v2_t *jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ opj_event_mgr_t * p_manager)
{
- jp2_box_t box;
+ if (!p_image)
+ return OPJ_FALSE;
+
+ /* J2K decoding */
+ if( ! j2k_decode_v2(jp2->j2k, p_stream, p_image, p_manager) ) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
+ return OPJ_FALSE;
+ }
+
+ if (!jp2->ignore_pclr_cmap_cdef){
+
+ /* Set Image Color Space */
+ if (jp2->enumcs == 16)
+ p_image->color_space = CLRSPC_SRGB;
+ else if (jp2->enumcs == 17)
+ p_image->color_space = CLRSPC_GRAY;
+ else if (jp2->enumcs == 18)
+ p_image->color_space = CLRSPC_SYCC;
+ else
+ p_image->color_space = CLRSPC_UNKNOWN;
+
+ /* Apply the color space if needed */
+ if(jp2->color.jp2_cdef) {
+ jp2_apply_cdef(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if( !jp2->color.jp2_pclr->cmap)
+ jp2_free_pclr(&(jp2->color));
+ else
+ jp2_apply_pclr(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = jp2->color.icc_profile_len;
+ jp2->color.icc_profile_buf = NULL;
+ }
+ }
+
+ return OPJ_TRUE;
+}
- 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
+void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) {
+ opj_jp2_box_t box;
- if (jp2_struct->meth == 1)
- jp2_struct->enumcs = cio_read(4); // EnumCS
- else
- cio_read(1); // PROFILE
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_JP2H, 4); /* JP2H */
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with BPCC Box\n");
- return 1;
- }
- return 0;
+ 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);
}
-/*
-* Write the JP2H box
-*
-* JP2 Header box
-*
+/**
+ * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
*/
-void jp2_write_jp2h(jp2_struct_t * jp2_struct)
+opj_bool jp2_write_jp2h_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
{
- jp2_box_t box;
+ opj_jp2_img_header_writer_handler_t l_writers [3];
+ opj_jp2_img_header_writer_handler_t * l_current_writer;
+
+ int i, l_nb_pass;
+ /* size of data for super box*/
+ int l_jp2h_size = 8;
+ opj_bool l_result = OPJ_TRUE;
+
+ /* to store the data of the super box */
+ unsigned char l_jp2h_data [8];
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ memset(l_writers,0,sizeof(l_writers));
+
+ if (jp2->bpc == 255) {
+ l_nb_pass = 3;
+ l_writers[0].handler = jp2_write_ihdr_v2;
+ l_writers[1].handler = jp2_write_bpcc_v2;
+ l_writers[2].handler = jp2_write_colr_v2;
+ }
+ else {
+ l_nb_pass = 2;
+ l_writers[0].handler = jp2_write_ihdr_v2;
+ l_writers[1].handler = jp2_write_colr_v2;
+ }
+
+ /* write box header */
+ /* write JP2H type */
+ opj_write_bytes(l_jp2h_data+4,JP2_JP2H,4);
+
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ l_current_writer->m_data = l_current_writer->handler(jp2,&(l_current_writer->m_size));
+ if (l_current_writer->m_data == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to hold JP2 Header data\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+
+ l_jp2h_size += l_current_writer->m_size;
+ ++l_current_writer;
+ }
+
+ if (! l_result) {
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data );
+ }
+ ++l_current_writer;
+ }
+
+ return OPJ_FALSE;
+ }
+
+ /* write super box size */
+ opj_write_bytes(l_jp2h_data,l_jp2h_size,4);
+
+ /* write super box data on stream */
+ if (opj_stream_write_data(cio,l_jp2h_data,8,p_manager) != 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ }
+
+ if (l_result) {
+ l_current_writer = l_writers;
+ for (i=0;i<l_nb_pass;++i) {
+ if (opj_stream_write_data(cio,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writting JP2 Header box\n");
+ l_result = OPJ_FALSE;
+ break;
+ }
+ ++l_current_writer;
+ }
+ }
+
+ l_current_writer = l_writers;
+
+ /* cleanup */
+ for (i=0;i<l_nb_pass;++i) {
+ if (l_current_writer->m_data != 00) {
+ opj_free(l_current_writer->m_data );
+ }
+ ++l_current_writer;
+ }
+
+ return l_result;
+}
+
+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_skip(4);;
- cio_write(JP2_JP2H, 4); /* JP2H */
+ box.init_pos = cio_tell(cio);
+ cio_skip(cio, 4);
+ cio_write(cio, JP2_FTYP, 4); /* FTYP */
- jp2_write_ihdr(jp2_struct);
+ cio_write(cio, jp2->brand, 4); /* BR */
+ cio_write(cio, jp2->minversion, 4); /* MinV */
- if (jp2_struct->bpc == 255)
- jp2_write_bpcc(jp2_struct);
- jp2_write_colr(jp2_struct);
+ for (i = 0; i < jp2->numcl; i++) {
+ cio_write(cio, jp2->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);
+ 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);
}
+/**
+ * Writes a FTYP box - File type box
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+opj_bool jp2_write_ftyp_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ unsigned int i;
+ unsigned int l_ftyp_size = 16 + 4 * jp2->numcl;
+ unsigned char * l_ftyp_data, * l_current_data_ptr;
+ opj_bool l_result;
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ l_ftyp_data = (unsigned char *) opj_malloc(l_ftyp_size);
+
+ if (l_ftyp_data == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
+ return OPJ_FALSE;
+ }
+
+ memset(l_ftyp_data,0,l_ftyp_size);
+
+ l_current_data_ptr = l_ftyp_data;
+
+ opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
+ l_current_data_ptr += 4;
+
+ opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
+ l_current_data_ptr += 4;
+
+ for (i = 0; i < jp2->numcl; i++) {
+ opj_write_bytes(l_current_data_ptr, jp2->cl[i],4); /* CL */
+ }
+
+ l_result = (opj_stream_write_data(cio,l_ftyp_data,l_ftyp_size,p_manager) == l_ftyp_size);
+ if (! l_result)
+ {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error while writting ftyp data to stream\n");
+ }
+
+ opj_free(l_ftyp_data);
+
+ return l_result;
+}
-/*
-* Read the JP2H box
-*
-* JP2 Header box
-*
+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;
+
+ jp2_read_boxhdr(cinfo, cio, &box);
+
+ 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;
+}
+
+/**
+ * Writes the Jpeg2000 codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
*/
-int jp2_read_jp2h(jp2_struct_t * jp2_struct)
+opj_bool jp2_write_jp2c_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
{
- jp2_box_t box;
+ unsigned int j2k_codestream_exit;
+ unsigned char l_data_header [8];
+
+ // preconditions
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+ assert(opj_stream_has_seek(cio));
+
+ j2k_codestream_exit = opj_stream_tell(cio);
+ opj_write_bytes(l_data_header,j2k_codestream_exit - jp2->j2k_codestream_offset,4); /* size of codestream */
+ opj_write_bytes(l_data_header + 4,JP2_JP2C,4); /* JP2C */
+
+ if (! opj_stream_seek(cio,jp2->j2k_codestream_offset,p_manager)) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ if (opj_stream_write_data(cio,l_data_header,8,p_manager) != 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
- jp2_read_boxhdr(&box);
- if (JP2_JP2H != box.type) {
- fprintf(stderr, "Error: Expected JP2H 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;
- if (jp2_read_ihdr(jp2_struct))
- return 1;
+ opj_common_ptr cinfo = jp2->cinfo;
- if (jp2_struct->bpc == 255)
- if (jp2_read_bpcc(jp2_struct))
- return 1;
- if (jp2_read_colr(jp2_struct))
- return 1;
+ 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);
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with JP2H Box\n");
- return 1;
- }
- return 0;
+ *j2k_codestream_offset = cio_tell(cio);
+ *j2k_codestream_length = box.length - 8;
+
+ return OPJ_TRUE;
}
-/*
-* Write the FTYP box
-*
-* File type box
-*
-*/
-void jp2_write_ftyp(jp2_struct_t * jp2_struct)
+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);
+}
+
+/**
+ * Writes a jpeg2000 file signature box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager the user event manager.
+ *
+ * @return true if writting was successful.
+ */
+opj_bool jp2_write_jp_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
{
- unsigned int i;
- jp2_box_t box;
+ /* 12 bytes will be read */
+ unsigned char l_signature_data [12];
+
+ // preconditions
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ /* write box length */
+ opj_write_bytes(l_signature_data,12,4);
+ /* writes box type */
+ opj_write_bytes(l_signature_data+4,JP2_JP,4);
+ /* writes magic number*/
+ opj_write_bytes(l_signature_data+8,0x0d0a870a,4);
+
+ if (opj_stream_write_data(cio,l_signature_data,12,p_manager) != 12) {
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_FTYP, 4); /* FTYP */
+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;
+
+ jp2_read_boxhdr(cinfo, cio, &box);
+ 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;
+}
- 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 */
+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;
+}
- 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 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;
}
-/*
-* Read the FTYP box
-*
-* File type box
-*
-*/
-int jp2_read_ftyp(jp2_struct_t * jp2_struct)
+static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
{
- int i;
- jp2_box_t box;
+ 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);
+}
- jp2_read_boxhdr(&box);
+static void write_iptr( int offset, int length, opj_cio_t *cio)
+{
+ 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);
+}
- 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));
+/* ----------------------------------------------------------------------- */
+/* JP2 decoder interface */
+/* ----------------------------------------------------------------------- */
- for (i = 0; i < (int)jp2_struct->numcl; i++)
- jp2_struct->cl[i] = cio_read(4); /* CLi */
+void jp2_destroy_decompress(opj_jp2_t *jp2) {
+ if(jp2) {
+ /* destroy the J2K codec */
+ j2k_destroy_decompress(jp2->j2k);
- if (cio_tell() - box.init_pos != box.length) {
- fprintf(stderr, "Error with FTYP Box\n");
- return 1;
- }
- return 0;
+ if(jp2->comps) {
+ opj_free(jp2->comps);
+ }
+ if(jp2->cl) {
+ opj_free(jp2->cl);
+ }
+ opj_free(jp2);
+ }
}
-int jp2_write_jp2c(jp2_struct_t * jp2_struct, char *j2k_codestream)
+
+void opj_jp2_setup_decoder(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
{
- jp2_box_t box;
+ /* setup the J2K codec */
+ opj_j2k_setup_decoder(jp2->j2k, parameters);
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_JP2C, 4); // JP2C
+ /* further JP2 initializations go here */
+ jp2->color.jp2_has_colr = 0;
+ jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
+}
- jp2_struct->j2k_codestream_offset = cio_tell();
- memcpy(cio_getbp(),j2k_codestream, jp2_struct->j2k_codestream_len);
- box.length = 8 + jp2_struct->j2k_codestream_len;
- cio_seek(box.init_pos);
- cio_write(box.length, 4); /* L */
- cio_seek(box.init_pos + box.length);
+/* ----------------------------------------------------------------------- */
+/* 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;
+}
- return box.length;
+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_v2_t *jp2,
+ opj_cparameters_t *parameters,
+ opj_image_t *image,
+ opj_event_mgr_t * p_manager) {
+ 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_v2(p_manager, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
+ return;
+ }
+
+ j2k_setup_encoder_v2(jp2->j2k, parameters, image, p_manager );
+
+ /* 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 */
+
+ // jp2->jpip_on = parameters->jpip_on;
}
-int jp2_read_jp2c(unsigned char *src, jp2_struct_t * jp2_struct)
+opj_bool opj_jp2_encode_v2( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *stream,
+ opj_event_mgr_t * p_manager)
{
- jp2_box_t box;
+ return j2k_encode_v2(jp2->j2k, stream, p_manager);
+}
- jp2_read_boxhdr(&box);
- if (JP2_JP2C != box.type) {
- fprintf(stderr, "Error: Expected JP2C Marker\n");
- return 1;
- }
+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;
+}
+
+/**
+ * Ends the decompression procedures and possibiliy add data to be read after the
+ * codestream.
+ */
+opj_bool jp2_end_decompress(opj_jp2_v2_t *jp2, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* customization of the end encoding */
+ jp2_setup_end_header_reading(jp2);
- jp2_struct->j2k_codestream_offset = cio_tell();
- jp2_struct->j2k_codestream_len = box.length - 8;
+ /* write header */
+ if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
- return 0;
+ return j2k_end_decompress(jp2->j2k, cio, p_manager);
}
-void jp2_write_jp()
+/**
+ * Ends the compression procedures and possibility add data to be read after the
+ * codestream.
+ */
+opj_bool jp2_end_compress( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager)
{
- jp2_box_t box;
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
- box.init_pos = cio_tell();
- cio_skip(4);
- cio_write(JP2_JP, 4); // JP
- cio_write(0x0d0a870a, 4);
+ /* customization of the end encoding */
+ jp2_setup_end_header_writting(jp2);
- 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 (! j2k_end_compress(jp2->j2k,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* write header */
+ return jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
}
-/*
-* Read the JP box
-*
-* JPEG 2000 signature
-*
-* return 1 if error else 0
+
+/**
+ * Sets up the procedures to do on writing header after the codestream.
+ * Developers wanting to extend the library can add their own writing procedures.
+ */
+void jp2_setup_end_header_writting (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp2c_v2 );
+ /* DEVELOPER CORNER, add your custom procedures */
+}
+
+/**
+ * Sets up the procedures to do on reading header after the codestream.
+ * Developers wanting to extend the library can add their own writing procedures.
+ */
+void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_read_header_procedure );
+ /* DEVELOPER CORNER, add your custom procedures */
+}
+
+/**
+ * The default validation procedure without any extension.
+ *
+ * @param jp2 the jpeg2000 codec to validate.
+ * @param cio the input stream to validate.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the parameters are correct.
+ */
+opj_bool jp2_default_validation ( opj_jp2_v2_t * jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ opj_bool l_is_valid = OPJ_TRUE;
+ unsigned int i;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* JPEG2000 codec validation */
+ /*TODO*/
+
+ /* STATE checking */
+ /* make sure the state is at 0 */
+ l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
+
+ /* make sure not reading a jp2h ???? WEIRD */
+ l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
+
+ /* POINTER validation */
+ /* make sure a j2k codec is present */
+ l_is_valid &= (jp2->j2k != 00);
+
+ /* make sure a procedure list is present */
+ l_is_valid &= (jp2->m_procedure_list != 00);
+
+ /* make sure a validation list is present */
+ l_is_valid &= (jp2->m_validation_list != 00);
+
+ /* PARAMETER VALIDATION */
+ /* number of components */
+ l_is_valid &= (jp2->numcl > 0);
+ /* width */
+ l_is_valid &= (jp2->h > 0);
+ /* height */
+ l_is_valid &= (jp2->w > 0);
+ /* precision */
+ for (i = 0; i < jp2->numcomps; ++i) {
+ l_is_valid &= (jp2->comps[i].bpcc > 0);
+ }
+
+ /* METH */
+ l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
+
+ /* stream validation */
+ /* back and forth is needed */
+ l_is_valid &= opj_stream_has_seek(cio);
+
+ return l_is_valid;
+}
+
+/**
+ * Reads a jpeg2000 file header structure.
+ *
+ * @param cio the stream to read data from.
+ * @param jp2 the jpeg2000 file header structure.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the box is valid.
+ */
+opj_bool jp2_read_header_procedure(
+ opj_jp2_v2_t *jp2,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager)
+{
+ opj_jp2_box_t box;
+ OPJ_UINT32 l_nb_bytes_read;
+ const opj_jp2_header_handler_t * l_current_handler;
+ OPJ_UINT32 l_last_data_size = BOX_SIZE;
+ OPJ_UINT32 l_current_data_size;
+ unsigned char * l_current_data = 00;
+
+ /* preconditions */
+ assert(cio != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ l_current_data = (unsigned char*)opj_malloc(l_last_data_size);
+
+ if (l_current_data == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 file header\n");
+ return OPJ_FALSE;
+ }
+ memset(l_current_data, 0 , l_last_data_size);
+
+ while (jp2_read_boxhdr_v2(&box,&l_nb_bytes_read,cio,p_manager)) {
+ /* is it the codestream box ? */
+ if (box.type == JP2_JP2C) {
+ if (jp2->jp2_state & JP2_STATE_HEADER) {
+ jp2->jp2_state |= JP2_STATE_CODESTREAM;
+ opj_free(l_current_data);
+ return OPJ_TRUE;
+ }
+ else {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ }
+ else if (box.length == 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+
+ l_current_handler = jp2_find_handler(box.type);
+ l_current_data_size = box.length - l_nb_bytes_read;
+
+ if (l_current_handler != 00) {
+ if (l_current_data_size > l_last_data_size) {
+ l_current_data = (unsigned char*)opj_realloc(l_current_data,l_current_data_size);
+ if (!l_current_data){
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ l_last_data_size = l_current_data_size;
+ }
+
+ l_nb_bytes_read = opj_stream_read_data(cio,l_current_data,l_current_data_size,p_manager);
+ if (l_nb_bytes_read != l_current_data_size) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with reading JPEG2000 box, stream error\n");
+ return OPJ_FALSE;
+ }
+
+ if (! l_current_handler->handler(jp2,l_current_data,l_current_data_size,p_manager)) {
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ }
+ else {
+ jp2->jp2_state |= JP2_STATE_UNKNOWN;
+ if (opj_stream_skip(cio,l_current_data_size,p_manager) != l_current_data_size) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");
+ opj_free(l_current_data);
+ return OPJ_FALSE;
+ }
+ }
+ }
+
+ opj_free(l_current_data);
+
+ return OPJ_TRUE;
+}
+
+/**
+ * Excutes the given procedures on the given codec.
+ *
+ * @param p_procedure_list the list of procedures to execute
+ * @param jp2 the jpeg2000 file codec to execute the procedures on.
+ * @param cio the stream to execute the procedures on.
+ * @param p_manager the user manager.
+ *
+ * @return true if all the procedures were successfully executed.
+ */
+opj_bool jp2_exec (
+ opj_jp2_v2_t * jp2,
+ opj_procedure_list_t * p_procedure_list,
+ opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager
+ )
+{
+ opj_bool (** l_procedure) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *) = 00;
+ opj_bool l_result = OPJ_TRUE;
+ OPJ_UINT32 l_nb_proc, i;
+
+ /* preconditions */
+ assert(p_procedure_list != 00);
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
+ l_procedure = (opj_bool (**) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list);
+
+ for (i=0;i<l_nb_proc;++i) {
+ l_result = l_result && (*l_procedure) (jp2,cio,p_manager);
+ ++l_procedure;
+ }
+
+ /* and clear the procedure list at the end. */
+ opj_procedure_list_clear(p_procedure_list);
+ return l_result;
+}
+
+/**
+ * Starts a compression scheme, i.e. validates the codec parameters, writes the header.
+ *
+ * @param jp2 the jpeg2000 file codec.
+ * @param cio the stream object.
+ *
+ * @return true if the codec is valid.
+ */
+opj_bool jp2_start_compress(opj_jp2_v2_t *jp2,
+ struct opj_stream_private *cio,
+ opj_image_t * p_image,
+ struct opj_event_mgr * p_manager)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+
+ /* customization of the validation */
+ jp2_setup_encoding_validation (jp2);
+
+ /* validation of the parameters codec */
+ if (! jp2_exec(jp2,jp2->m_validation_list,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* customization of the encoding */
+ jp2_setup_header_writting(jp2);
+
+ /* write header */
+ if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ return j2k_start_compress(jp2->j2k,cio,p_image,p_manager);
+}
+
+/**
+ * Finds the execution function related to the given box id.
+ *
+ * @param p_id the id of the handler to fetch.
+ *
+ * @return the given handler or 00 if it could not be found.
+ */
+const opj_jp2_header_handler_t * jp2_find_handler (int p_id)
+{
+ OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(opj_jp2_header_handler_t);
+
+ for (i=0;i<l_handler_size;++i) {
+ if (jp2_header[i].id == p_id) {
+ return &jp2_header[i];
+ }
+ }
+ return NULL;
+}
+
+/**
+ * Finds the image execution function related to the given box id.
+ *
+ * @param p_id the id of the handler to fetch.
+ *
+ * @return the given handler or 00 if it could not be found.
+ */
+static const opj_jp2_header_handler_t * jp2_img_find_handler (
+ int p_id
+ )
+{
+ OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(opj_jp2_header_handler_t);
+ for (i=0;i<l_handler_size;++i)
+ {
+ if (jp2_img_header[i].id == p_id) {
+ return &jp2_img_header[i];
+ }
+ }
+
+ return NULL;
+}
+
+
+/**
+ * Reads a jpeg2000 file signature box.
+ *
+ * @param p_header_data the data contained in the signature box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the signature box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the file signature box is valid.
+ */
+opj_bool jp2_read_jp_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ unsigned int p_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ unsigned int l_magic_number;
+
+ /* preconditions */
+ assert(p_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ if (jp2->jp2_state != JP2_STATE_NONE) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "The signature box must be the first box in the file.\n");
+ return OPJ_FALSE;
+ }
+
+ /* assure length of data is correct (4 -> magic number) */
+ if (p_header_size != 4) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
+ return OPJ_FALSE;
+ }
+
+ /* rearrange data */
+ opj_read_bytes(p_header_data,&l_magic_number,4);
+ if (l_magic_number != 0x0d0a870a ) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP Signature : bad magic number\n");
+ return OPJ_FALSE;
+ }
+
+ jp2->jp2_state |= JP2_STATE_SIGNATURE;
+
+ return OPJ_TRUE;
+}
+
+
+/**
+ * Reads a a FTYP box - File type box
+ *
+ * @param p_header_data the data contained in the FTYP box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the FTYP box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the FTYP box is valid.
+ */
+opj_bool jp2_read_ftyp_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ unsigned int p_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_UINT32 i, l_remaining_bytes;
+
+ /* preconditions */
+ assert(p_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "The ftyp box must be the second box in the file.\n");
+ return OPJ_FALSE;
+ }
+
+ /* assure length of data is correct */
+ if (p_header_size < 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_header_data,&jp2->brand,4); /* BR */
+ p_header_data += 4;
+
+ opj_read_bytes(p_header_data,&jp2->minversion,4); /* MinV */
+ p_header_data += 4;
+
+ l_remaining_bytes = p_header_size - 8;
+
+ /* the number of remaining bytes should be a multiple of 4 */
+ if ((l_remaining_bytes & 0x3) != 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
+ return OPJ_FALSE;
+ }
+
+ /* div by 4 */
+ jp2->numcl = l_remaining_bytes >> 2;
+ if (jp2->numcl) {
+ jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
+ if (jp2->cl == 00) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
+ return OPJ_FALSE;
+ }
+ memset(jp2->cl,0,jp2->numcl * sizeof(unsigned int));
+ }
+
+ for (i = 0; i < jp2->numcl; ++i)
+ {
+ opj_read_bytes(p_header_data,&jp2->cl[i],4); /* CLi */
+ p_header_data += 4;
+ }
+
+ jp2->jp2_state |= JP2_STATE_FILE_TYPE;
+
+ return OPJ_TRUE;
+}
+
+/**
+ * Skips the Jpeg2000 Codestream Header box - JP2C Header box.
+ *
+ * @param cio the stream to write data to.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_manager user event manager.
+ *
+ * @return true if writting was successful.
*/
-int jp2_read_jp()
+opj_bool jp2_skip_jp2c( opj_jp2_v2_t *jp2,
+ struct opj_stream_private *stream,
+ struct opj_event_mgr * p_manager )
{
- jp2_box_t box;
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(stream != 00);
+ assert(p_manager != 00);
- 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;
+ jp2->j2k_codestream_offset = opj_stream_tell(stream);
+ if (opj_stream_skip(stream,8,p_manager) != 8) {
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
}
+/**
+ * Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
+ *
+ * @param p_header_data the data contained in the file header box.
+ * @param jp2 the jpeg2000 file codec.
+ * @param p_header_size the size of the data contained in the file header box.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the JP2 Header box was successfully reconized.
+*/
+opj_bool jp2_read_jp2h_v2(
+ opj_jp2_v2_t *jp2,
+ unsigned char * p_header_data,
+ unsigned int p_header_size,
+ opj_event_mgr_t * p_manager
+ )
+{
+ OPJ_UINT32 l_box_size=0, l_current_data_size = 0;
+ opj_jp2_box_t box;
+ const opj_jp2_header_handler_t * l_current_handler;
+
+ /* preconditions */
+ assert(p_header_data != 00);
+ assert(jp2 != 00);
+ assert(p_manager != 00);
+
+ /* make sure the box is well placed */
+ if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE ) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "The box must be the first box in the file.\n");
+ return OPJ_FALSE;
+ }
+
+ jp2->jp2_img_state = JP2_IMG_STATE_NONE;
+
+ /* iterate while remaining data */
+ while (p_header_size > 0) {
+
+ if (! jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box\n");
+ return OPJ_FALSE;
+ }
+
+ if (box.length > p_header_size) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box: box length is inconsistent.\n");
+ return OPJ_FALSE;
+ }
+
+ l_current_handler = jp2_img_find_handler(box.type);
+ l_current_data_size = box.length - l_box_size;
+ p_header_data += l_box_size;
+
+ if (l_current_handler != 00) {
+ if (! l_current_handler->handler(jp2,p_header_data,l_current_data_size,p_manager)) {
+ return OPJ_FALSE;
+ }
+ }
+ else {
+ jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
+ }
+
+ p_header_data += l_current_data_size;
+ p_header_size -= box.length;
+ }
+
+ jp2->jp2_state |= JP2_STATE_HEADER;
+
+ return OPJ_TRUE;
+}
-int jp2_read_struct(unsigned char *src, jp2_struct_t * jp2_struct, int len)
+/**
+ * Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
+ *
+ * @param p_data the character string to read data from.
+ * @param box the box structure to fill.
+ * @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
+ * @param p_box_max_size the maximum number of bytes in the box.
+ *
+ * @return true if the box is reconized, false otherwise
+*/
+static opj_bool jp2_read_boxhdr_char(
+ opj_jp2_box_t *box,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 * p_number_bytes_read,
+ OPJ_UINT32 p_box_max_size,
+ opj_event_mgr_t * p_manager
+ )
{
- cio_init(src, len);
+ OPJ_UINT32 l_value;
+
+ /* preconditions */
+ assert(p_data != 00);
+ assert(box != 00);
+ assert(p_number_bytes_read != 00);
+ assert(p_manager != 00);
+
+ if (p_box_max_size < 8) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
+ return OPJ_FALSE;
+ }
+
+ /* process read data */
+ opj_read_bytes(p_data, &l_value, 4);
+ p_data += 4;
+ box->length = (OPJ_INT32)(l_value);
+
+ opj_read_bytes(p_data, &l_value, 4);
+ p_data += 4;
+ box->type = (OPJ_INT32)(l_value);
+
+ *p_number_bytes_read = 8;
+
+ /* do we have a "special very large box ?" */
+ /* read then the XLBox */
+ if (box->length == 1) {
+ unsigned int l_xl_part_size;
+
+ if (p_box_max_size < 16) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle XL box of less than 16 bytes\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_data,&l_xl_part_size, 4);
+ p_data += 4;
+ *p_number_bytes_read += 4;
+
+ if (l_xl_part_size != 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
+ return OPJ_FALSE;
+ }
+
+ opj_read_bytes(p_data, &l_value, 4);
+ *p_number_bytes_read += 4;
+ box->length = (OPJ_INT32)(l_value);
+
+ if (box->length == 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
+ return OPJ_FALSE;
+ }
+ }
+ else if (box->length == 0) {
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
+ return OPJ_FALSE;
+ }
+
+ return OPJ_TRUE;
+}
+
- 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, jp2_struct))
- return 1;
- return 0;
+/**
+ * Reads a jpeg2000 file header structure.
+ *
+ * @param cio the stream to read data from.
+ * @param jp2 the jpeg2000 file header structure.
+ * @param p_manager the user event manager.
+ *
+ * @return true if the box is valid.
+ */
+opj_bool jp2_read_header( struct opj_stream_private *p_stream,
+ opj_jp2_v2_t *jp2,
+ opj_image_t** p_image,
+ struct opj_event_mgr * p_manager
+ )
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_stream != 00);
+ assert(p_manager != 00);
+
+ /* customization of the validation */
+ jp2_setup_decoding_validation (jp2);
+
+ /* customization of the encoding */
+ jp2_setup_header_reading(jp2);
+
+ /* validation of the parameters codec */
+ if (! jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* read header */
+ if (! jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ return j2k_read_header( p_stream,
+ jp2->j2k,
+ p_image,
+ p_manager);
}
-int jp2_wrap_j2k(jp2_struct_t * jp2_struct, char *j2k_codestream, char *output)
+/**
+ * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
+ * are valid. Developers wanting to extend the library can add their own validation procedures.
+ */
+void jp2_setup_encoding_validation (opj_jp2_v2_t *jp2)
{
- jp2_write_jp();
- jp2_write_ftyp(jp2_struct);
- jp2_write_jp2h(jp2_struct);
- jp2_write_jp2c(jp2_struct, j2k_codestream);
+ /* preconditions */
+ assert(jp2 != 00);
- return cio_tell();
+ opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)jp2_default_validation);
+ /* DEVELOPER CORNER, add your custom validation procedure */
}
+
+/**
+ * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+void jp2_setup_decoding_validation (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ /* DEVELOPER CORNER, add your custom validation procedure */
+}
+
+/**
+ * Sets up the procedures to do on writting header.
+ * Developers wanting to extend the library can add their own writing procedures.
+ */
+void jp2_setup_header_writting (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_ftyp_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp2h_v2 );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_skip_jp2c );
+
+ /* DEVELOPER CORNER, insert your custom procedures */
+
+}
+
+/**
+ * Sets up the procedures to do on reading header.
+ * Developpers wanting to extend the library can add their own writting procedures.
+ */
+void jp2_setup_header_reading (opj_jp2_v2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_read_header_procedure );
+ /* DEVELOPER CORNER, add your custom procedures */
+}
+
+
+/**
+ * Reads a tile header.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_stream the stream to write data to.
+ * @param p_manager the user event manager.
+ */
+opj_bool jp2_read_tile_header( opj_jp2_v2_t * p_jp2,
+ OPJ_UINT32 * p_tile_index,
+ OPJ_UINT32 * p_data_size,
+ OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
+ OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
+ OPJ_UINT32 * p_nb_comps,
+ opj_bool * p_go_on,
+ opj_stream_private_t *p_stream,
+ opj_event_mgr_t * p_manager )
+{
+ return j2k_read_tile_header(p_jp2->j2k,
+ p_tile_index,
+ p_data_size,
+ p_tile_x0, p_tile_y0,
+ p_tile_x1, p_tile_y1,
+ p_nb_comps,
+ p_go_on,
+ p_stream,
+ p_manager);
+}
+
+/**
+ * Writes a tile.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_stream the stream to write data to.
+ * @param p_manager the user event manager.
+ */
+opj_bool jp2_write_tile ( opj_jp2_v2_t *p_jp2,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ struct opj_stream_private *p_stream,
+ struct opj_event_mgr * p_manager )
+{
+ return j2k_write_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
+}
+
+/**
+ * Decode tile data.
+ * @param p_j2k the jpeg2000 codec.
+ * @param p_stream the stream to write data to.
+ * @param p_manager the user event manager.
+ */
+opj_bool jp2_decode_tile (
+ opj_jp2_v2_t * p_jp2,
+ OPJ_UINT32 p_tile_index,
+ OPJ_BYTE * p_data,
+ OPJ_UINT32 p_data_size,
+ opj_stream_private_t *p_stream,
+ opj_event_mgr_t * p_manager
+ )
+{
+ return j2k_decode_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
+}
+
+/**
+ * Destroys a jpeg2000 file decompressor.
+ *
+ * @param jp2 a jpeg2000 file decompressor.
+ */
+void jp2_destroy(opj_jp2_v2_t *jp2)
+{
+ if (jp2) {
+ /* destroy the J2K codec */
+ j2k_destroy(jp2->j2k);
+ jp2->j2k = 00;
+
+ if (jp2->comps) {
+ opj_free(jp2->comps);
+ jp2->comps = 00;
+ }
+
+ if (jp2->cl) {
+ opj_free(jp2->cl);
+ jp2->cl = 00;
+ }
+
+ if (jp2->color.icc_profile_buf) {
+ opj_free(jp2->color.icc_profile_buf);
+ jp2->color.icc_profile_buf = 00;
+ }
+
+ if (jp2->color.jp2_cdef) {
+ if (jp2->color.jp2_cdef->info) {
+ opj_free(jp2->color.jp2_cdef->info);
+ jp2->color.jp2_cdef->info = NULL;
+ }
+
+ opj_free(jp2->color.jp2_cdef);
+ jp2->color.jp2_cdef = 00;
+ }
+
+ if (jp2->color.jp2_pclr) {
+ if (jp2->color.jp2_pclr->cmap) {
+ opj_free(jp2->color.jp2_pclr->cmap);
+ jp2->color.jp2_pclr->cmap = NULL;
+ }
+ if (jp2->color.jp2_pclr->channel_sign) {
+ opj_free(jp2->color.jp2_pclr->channel_sign);
+ jp2->color.jp2_pclr->channel_sign = NULL;
+ }
+ if (jp2->color.jp2_pclr->channel_size) {
+ opj_free(jp2->color.jp2_pclr->channel_size);
+ jp2->color.jp2_pclr->channel_size = NULL;
+ }
+ if (jp2->color.jp2_pclr->entries) {
+ opj_free(jp2->color.jp2_pclr->entries);
+ jp2->color.jp2_pclr->entries = NULL;
+ }
+
+ opj_free(jp2->color.jp2_pclr);
+ jp2->color.jp2_pclr = 00;
+ }
+
+ if (jp2->m_validation_list) {
+ opj_procedure_list_destroy(jp2->m_validation_list);
+ jp2->m_validation_list = 00;
+ }
+
+ if (jp2->m_procedure_list) {
+ opj_procedure_list_destroy(jp2->m_procedure_list);
+ jp2->m_procedure_list = 00;
+ }
+
+ opj_free(jp2);
+ }
+}
+
+/**
+ * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
+ *
+ * @param p_jp2 the jpeg2000 codec.
+ * @param p_end_x the right position of the rectangle to decode (in image coordinates).
+ * @param p_start_y the up position of the rectangle to decode (in image coordinates).
+ * @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
+ * @param p_manager the user event manager
+ *
+ * @return true if the area could be set.
+ */
+opj_bool jp2_set_decode_area( opj_jp2_v2_t *p_jp2,
+ opj_image_t* p_image,
+ OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
+ OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
+ struct opj_event_mgr * p_manager )
+{
+ return j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
+}
+
+/**
+ * Get the decoded tile.
+ *
+ * @param jp2 the jpeg2000 codec.
+ * @param p_stream input_stream
+ * @param p_image output image. .
+ * @param p_manager the user event manager
+ * @param tile_index index of the tile we want decode
+ *
+ * @return true if succeed.
+ */
+opj_bool jp2_get_tile( opj_jp2_v2_t *jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ struct opj_event_mgr * p_manager,
+ OPJ_UINT32 tile_index )
+{
+ if (!p_image)
+ return OPJ_FALSE;
+
+ opj_event_msg_v2(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
+
+ if (! j2k_get_tile(jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
+ opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
+ return OPJ_FALSE;
+ }
+
+ /* Set Image Color Space */
+ if (jp2->enumcs == 16)
+ p_image->color_space = CLRSPC_SRGB;
+ else if (jp2->enumcs == 17)
+ p_image->color_space = CLRSPC_GRAY;
+ else if (jp2->enumcs == 18)
+ p_image->color_space = CLRSPC_SYCC;
+ else
+ p_image->color_space = CLRSPC_UNKNOWN;
+
+ /* Apply the color space if needed */
+ if(jp2->color.jp2_cdef) {
+ jp2_apply_cdef(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if( !jp2->color.jp2_pclr->cmap)
+ jp2_free_pclr(&(jp2->color));
+ else
+ jp2_apply_pclr(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = jp2->color.icc_profile_len;
+ jp2->color.icc_profile_buf = NULL;
+ }
+
+ return OPJ_TRUE;
+}
+
+
+
+/* ----------------------------------------------------------------------- */
+/* JP2 encoder interface */
+/* ----------------------------------------------------------------------- */
+
+opj_jp2_v2_t* jp2_create(opj_bool p_is_decoder)
+{
+ opj_jp2_v2_t *jp2 = (opj_jp2_v2_t*)opj_malloc(sizeof(opj_jp2_v2_t));
+ if (jp2) {
+ memset(jp2,0,sizeof(opj_jp2_v2_t));
+
+ /* create the J2K codec */
+ if (! p_is_decoder) {
+ jp2->j2k = j2k_create_compress_v2();
+ }
+ else {
+ jp2->j2k = opj_j2k_create_decompress();
+ }
+
+ if (jp2->j2k == 00) {
+ jp2_destroy(jp2);
+ return 00;
+ }
+
+ /* Color structure */
+ jp2->color.icc_profile_buf = NULL;
+ jp2->color.icc_profile_len = 0;
+ jp2->color.jp2_cdef = NULL;
+ jp2->color.jp2_pclr = NULL;
+ jp2->color.jp2_has_colr = 0;
+
+ /* validation list creation */
+ jp2->m_validation_list = opj_procedure_list_create();
+ if (! jp2->m_validation_list) {
+ jp2_destroy(jp2);
+ return 00;
+ }
+
+ /* execution list creation */
+ jp2->m_procedure_list = opj_procedure_list_create();
+ if (! jp2->m_procedure_list) {
+ jp2_destroy(jp2);
+ return 00;
+ }
+ }
+
+ return jp2;
+}
+
+void jp2_dump(opj_jp2_v2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
+{
+ /* preconditions */
+ assert(p_jp2 != 00);
+
+ j2k_dump(p_jp2->j2k,
+ flag,
+ out_stream);
+}
+
+opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_v2_t* p_jp2)
+{
+ return j2k_get_cstr_index(p_jp2->j2k);
+}
+
+opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_v2_t* p_jp2)
+{
+ return j2k_get_cstr_info(p_jp2->j2k);
+}
+
+opj_bool jp2_set_decoded_resolution_factor(opj_jp2_v2_t *p_jp2, OPJ_UINT32 res_factor, opj_event_mgr_t * p_manager)
+{
+ return j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
+}
+
projects / openjpeg.git / blobdiff