| /* |
| * The copyright in this software is being made available under the 2-clauses |
| * BSD License, included below. This software may be subject to other third |
| * party and contributor rights, including patent rights, and no such rights |
| * are granted under this license. |
| * |
| * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium |
| * Copyright (c) 2002-2014, Professor Benoit Macq |
| * Copyright (c) 2001-2003, David Janssens |
| * Copyright (c) 2002-2003, Yannick Verschueren |
| * Copyright (c) 2003-2007, Francois-Olivier Devaux |
| * Copyright (c) 2003-2014, Antonin Descampe |
| * Copyright (c) 2005, Herve Drolon, FreeImage Team |
| * Copyright (c) 2010-2011, Kaori Hagihara |
| * Copyright (c) 2008, 2011-2012, Centre National d'Etudes Spatiales (CNES), FR |
| * Copyright (c) 2012, CS Systemes d'Information, France |
| * 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 OPJ_BOX_SIZE 1024 |
| |
| #define OPJ_UNUSED(x) (void)x |
| |
| /** @name Local static functions */ |
| /*@{*/ |
| |
| /*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/ |
| |
| /** |
| * 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 opj_jp2_read_ihdr(opj_jp2_t *jp2, |
| OPJ_BYTE *p_image_header_data, |
| OPJ_UINT32 p_image_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * 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 OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written); |
| |
| /** |
| * 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 OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written); |
| |
| /** |
| * 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, false else. |
| */ |
| static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2, |
| OPJ_BYTE * p_bpc_header_data, |
| OPJ_UINT32 p_bpc_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2, |
| OPJ_BYTE * p_cdef_header_data, |
| OPJ_UINT32 p_cdef_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color, |
| opj_event_mgr_t *); |
| |
| /** |
| * Writes the Channel Definition 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 OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written); |
| |
| /** |
| * 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 OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written); |
| |
| /** |
| * 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 writing was successful. |
| */ |
| static OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * 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 opj_jp2_read_ftyp(opj_jp2_t *jp2, |
| OPJ_BYTE * p_header_data, |
| OPJ_UINT32 p_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * 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 recognized. |
| */ |
| static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2, |
| OPJ_BYTE *p_header_data, |
| OPJ_UINT32 p_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box). |
| * |
| * @param jp2 the jpeg2000 file codec. |
| * @param stream the stream to write data to. |
| * @param p_manager user event manager. |
| * |
| * @return true if writing was successful. |
| */ |
| static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * 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 writing was successful. |
| */ |
| static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| |
| #ifdef USE_JPIP |
| /** |
| * Write index Finder box |
| * @param cio the stream to write to. |
| * @param jp2 the jpeg2000 file codec. |
| * @param p_manager user event manager. |
| */ |
| static OPJ_BOOL opj_jpip_write_iptr(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Write index Finder box |
| * @param cio the stream to write to. |
| * @param jp2 the jpeg2000 file codec. |
| * @param p_manager user event manager. |
| */ |
| static OPJ_BOOL opj_jpip_write_cidx(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Write file Index (superbox) |
| * @param cio the stream to write to. |
| * @param jp2 the jpeg2000 file codec. |
| * @param p_manager user event manager. |
| */ |
| static OPJ_BOOL opj_jpip_write_fidx(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| #endif /* USE_JPIP */ |
| |
| /** |
| * 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 opj_jp2_read_jp(opj_jp2_t *jp2, |
| OPJ_BYTE * p_header_data, |
| OPJ_UINT32 p_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * 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 writing was successful. |
| */ |
| static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| Apply collected palette data |
| @param image Image. |
| @param color Collector for profile, cdef and pclr data. |
| @param p_manager the user event manager. |
| @return true in case of success |
| */ |
| static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image, |
| opj_jp2_color_t *color, |
| opj_event_mgr_t * p_manager); |
| |
| static void opj_jp2_free_pclr(opj_jp2_color_t *color); |
| |
| /** |
| * Collect palette data |
| * |
| * @param jp2 JP2 handle |
| * @param p_pclr_header_data FIXME DOC |
| * @param p_pclr_header_size FIXME DOC |
| * @param p_manager |
| * |
| * @return Returns true if successful, returns false otherwise |
| */ |
| static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2, |
| OPJ_BYTE * 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 p_cmap_header_data FIXME DOC |
| * @param p_cmap_header_size FIXME DOC |
| * @param p_manager FIXME DOC |
| * |
| * @return Returns true if successful, returns false otherwise |
| */ |
| |
| static OPJ_BOOL opj_jp2_read_cmap(opj_jp2_t * jp2, |
| OPJ_BYTE * p_cmap_header_data, |
| OPJ_UINT32 p_cmap_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * 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, false else. |
| */ |
| static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2, |
| OPJ_BYTE * p_colr_header_data, |
| OPJ_UINT32 p_colr_header_size, |
| opj_event_mgr_t * p_manager); |
| |
| /*@}*/ |
| |
| /*@}*/ |
| |
| /** |
| * Sets up the procedures to do on writing header after the codestream. |
| * Developpers wanting to extend the library can add their own writing procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Sets up the procedures to do on reading header after the codestream. |
| * Developpers wanting to extend the library can add their own writing procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Reads a jpeg2000 file header structure. |
| * |
| * @param jp2 the jpeg2000 file header structure. |
| * @param stream the stream to read data from. |
| * @param p_manager the user event manager. |
| * |
| * @return true if the box is valid. |
| */ |
| static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Executes 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 stream 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 opj_jp2_exec(opj_jp2_t * jp2, |
| opj_procedure_list_t * p_procedure_list, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * 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 recognized, false otherwise |
| */ |
| static OPJ_BOOL opj_jp2_read_boxhdr(opj_jp2_box_t *box, |
| OPJ_UINT32 * p_number_bytes_read, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters |
| * are valid. Developpers wanting to extend the library can add their own validation procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Sets up the procedures to do on writing header. Developpers wanting to extend the library can add their own writing procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * 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 * opj_jp2_img_find_handler( |
| OPJ_UINT32 p_id); |
| |
| /** |
| * 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 * opj_jp2_find_handler(OPJ_UINT32 p_id); |
| |
| static const opj_jp2_header_handler_t jp2_header [] = { |
| {JP2_JP, opj_jp2_read_jp}, |
| {JP2_FTYP, opj_jp2_read_ftyp}, |
| {JP2_JP2H, opj_jp2_read_jp2h} |
| }; |
| |
| static const opj_jp2_header_handler_t jp2_img_header [] = { |
| {JP2_IHDR, opj_jp2_read_ihdr}, |
| {JP2_COLR, opj_jp2_read_colr}, |
| {JP2_BPCC, opj_jp2_read_bpcc}, |
| {JP2_PCLR, opj_jp2_read_pclr}, |
| {JP2_CMAP, opj_jp2_read_cmap}, |
| {JP2_CDEF, opj_jp2_read_cdef} |
| |
| }; |
| |
| /** |
| * 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 box the box structure to fill. |
| * @param p_data the character string to read data from. |
| * @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. |
| * @param p_manager FIXME DOC |
| * |
| * @return true if the box is recognized, false otherwise |
| */ |
| static OPJ_BOOL opj_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); |
| |
| /** |
| * Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters |
| * are valid. Developpers wanting to extend the library can add their own validation procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| /** |
| * Sets up the procedures to do on reading header. |
| * Developpers wanting to extend the library can add their own writing procedures. |
| */ |
| static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager); |
| |
| /* ----------------------------------------------------------------------- */ |
| static OPJ_BOOL opj_jp2_read_boxhdr(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 */ |
| OPJ_BYTE 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_UINT32)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); |
| |
| if (box->length == 0) { /* last box */ |
| const OPJ_OFF_T bleft = opj_stream_get_number_byte_left(cio); |
| if (bleft > (OPJ_OFF_T)(0xFFFFFFFFU - 8U)) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Cannot handle box sizes higher than 2^32\n"); |
| return OPJ_FALSE; |
| } |
| box->length = (OPJ_UINT32)bleft + 8U; |
| assert((OPJ_OFF_T)box->length == bleft + 8); |
| return OPJ_TRUE; |
| } |
| |
| /* 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_UINT32)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; |
| } |
| |
| *p_number_bytes_read = 16; |
| opj_read_bytes(l_data_header, &l_xl_part_size, 4); |
| if (l_xl_part_size != 0) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Cannot handle box sizes higher than 2^32\n"); |
| return OPJ_FALSE; |
| } |
| opj_read_bytes(l_data_header + 4, &(box->length), 4); |
| } |
| return OPJ_TRUE; |
| } |
| |
| #if 0 |
| static void jp2_write_url(opj_cio_t *cio, char *Idx_file) |
| { |
| OPJ_UINT32 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 opj_jp2_read_ihdr(opj_jp2_t *jp2, |
| OPJ_BYTE *p_image_header_data, |
| OPJ_UINT32 p_image_header_size, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(p_image_header_data != 00); |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| if (jp2->comps != NULL) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Ignoring ihdr box. First ihdr box already read\n"); |
| return OPJ_TRUE; |
| } |
| |
| if (p_image_header_size != 14) { |
| opj_event_msg(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; |
| |
| if (jp2->h < 1 || jp2->w < 1 || jp2->numcomps < 1) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Wrong values for: w(%d) h(%d) numcomps(%d) (ihdr)\n", |
| jp2->w, jp2->h, jp2->numcomps); |
| return OPJ_FALSE; |
| } |
| if ((jp2->numcomps - 1U) >= |
| 16384U) { /* unsigned underflow is well defined: 1U <= jp2->numcomps <= 16384U */ |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid number of components (ihdr)\n"); |
| return OPJ_FALSE; |
| } |
| |
| /* allocate memory for components */ |
| opj_free(jp2->comps); |
| jp2->comps = (opj_jp2_comps_t*) opj_calloc(jp2->numcomps, |
| sizeof(opj_jp2_comps_t)); |
| if (jp2->comps == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory to handle image header (ihdr)\n"); |
| return OPJ_FALSE; |
| } |
| |
| opj_read_bytes(p_image_header_data, &(jp2->bpc), 1); /* BPC */ |
| ++ p_image_header_data; |
| |
| 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(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; |
| |
| jp2->j2k->m_cp.allow_different_bit_depth_sign = (jp2->bpc == 255); |
| jp2->j2k->ihdr_w = jp2->w; |
| jp2->j2k->ihdr_h = jp2->h; |
| jp2->has_ihdr = 1; |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BYTE * opj_jp2_write_ihdr(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written |
| ) |
| { |
| OPJ_BYTE * 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 = (OPJ_BYTE *) opj_calloc(1, 22); |
| if (l_ihdr_data == 00) { |
| return 00; |
| } |
| |
| 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; |
| } |
| |
| static OPJ_BYTE * opj_jp2_write_bpcc(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written |
| ) |
| { |
| OPJ_UINT32 i; |
| /* room for 8 bytes for box and 1 byte for each component */ |
| OPJ_UINT32 l_bpcc_size; |
| OPJ_BYTE * l_bpcc_data, * l_current_bpcc_ptr; |
| |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_nb_bytes_written != 00); |
| l_bpcc_size = 8 + jp2->numcomps; |
| |
| l_bpcc_data = (OPJ_BYTE *) opj_calloc(1, l_bpcc_size); |
| if (l_bpcc_data == 00) { |
| return 00; |
| } |
| |
| 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; |
| } |
| |
| static OPJ_BOOL opj_jp2_read_bpcc(opj_jp2_t *jp2, |
| OPJ_BYTE * p_bpc_header_data, |
| OPJ_UINT32 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); |
| |
| |
| if (jp2->bpc != 255) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "A BPCC header box is available although BPC given by the IHDR box (%d) indicate components bit depth is constant\n", |
| jp2->bpc); |
| } |
| |
| /* and length is relevant */ |
| if (p_bpc_header_size != jp2->numcomps) { |
| opj_event_msg(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 OPJ_BYTE * opj_jp2_write_cdef(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written) |
| { |
| /* room for 8 bytes for box, 2 for n */ |
| OPJ_UINT32 l_cdef_size = 10; |
| OPJ_BYTE * l_cdef_data, * l_current_cdef_ptr; |
| OPJ_UINT32 l_value; |
| OPJ_UINT16 i; |
| |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_nb_bytes_written != 00); |
| assert(jp2->color.jp2_cdef != 00); |
| assert(jp2->color.jp2_cdef->info != 00); |
| assert(jp2->color.jp2_cdef->n > 0U); |
| |
| l_cdef_size += 6U * jp2->color.jp2_cdef->n; |
| |
| l_cdef_data = (OPJ_BYTE *) opj_malloc(l_cdef_size); |
| if (l_cdef_data == 00) { |
| return 00; |
| } |
| |
| l_current_cdef_ptr = l_cdef_data; |
| |
| opj_write_bytes(l_current_cdef_ptr, l_cdef_size, 4); /* write box size */ |
| l_current_cdef_ptr += 4; |
| |
| opj_write_bytes(l_current_cdef_ptr, JP2_CDEF, 4); /* BPCC */ |
| l_current_cdef_ptr += 4; |
| |
| l_value = jp2->color.jp2_cdef->n; |
| opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* N */ |
| l_current_cdef_ptr += 2; |
| |
| for (i = 0U; i < jp2->color.jp2_cdef->n; ++i) { |
| l_value = jp2->color.jp2_cdef->info[i].cn; |
| opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Cni */ |
| l_current_cdef_ptr += 2; |
| l_value = jp2->color.jp2_cdef->info[i].typ; |
| opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Typi */ |
| l_current_cdef_ptr += 2; |
| l_value = jp2->color.jp2_cdef->info[i].asoc; |
| opj_write_bytes(l_current_cdef_ptr, l_value, 2); /* Asoci */ |
| l_current_cdef_ptr += 2; |
| } |
| *p_nb_bytes_written = l_cdef_size; |
| |
| return l_cdef_data; |
| } |
| |
| static OPJ_BYTE * opj_jp2_write_colr(opj_jp2_t *jp2, |
| OPJ_UINT32 * p_nb_bytes_written |
| ) |
| { |
| /* room for 8 bytes for box 3 for common data and variable upon profile*/ |
| OPJ_UINT32 l_colr_size = 11; |
| OPJ_BYTE * l_colr_data, * l_current_colr_ptr; |
| |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_nb_bytes_written != 00); |
| assert(jp2->meth == 1 || jp2->meth == 2); |
| |
| switch (jp2->meth) { |
| case 1 : |
| l_colr_size += 4; /* EnumCS */ |
| break; |
| case 2 : |
| assert(jp2->color.icc_profile_len); /* ICC profile */ |
| l_colr_size += jp2->color.icc_profile_len; |
| break; |
| default : |
| return 00; |
| } |
| |
| l_colr_data = (OPJ_BYTE *) opj_calloc(1, l_colr_size); |
| if (l_colr_data == 00) { |
| return 00; |
| } |
| |
| 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) { /* Meth value is restricted to 1 or 2 (Table I.9 of part 1) */ |
| opj_write_bytes(l_current_colr_ptr, jp2->enumcs, 4); |
| } /* EnumCS */ |
| else { |
| if (jp2->meth == 2) { /* ICC profile */ |
| OPJ_UINT32 i; |
| for (i = 0; i < jp2->color.icc_profile_len; ++i) { |
| opj_write_bytes(l_current_colr_ptr, jp2->color.icc_profile_buf[i], 1); |
| ++l_current_colr_ptr; |
| } |
| } |
| } |
| |
| *p_nb_bytes_written = l_colr_size; |
| |
| return l_colr_data; |
| } |
| |
| static void opj_jp2_free_pclr(opj_jp2_color_t *color) |
| { |
| opj_free(color->jp2_pclr->channel_sign); |
| opj_free(color->jp2_pclr->channel_size); |
| opj_free(color->jp2_pclr->entries); |
| |
| if (color->jp2_pclr->cmap) { |
| opj_free(color->jp2_pclr->cmap); |
| } |
| |
| opj_free(color->jp2_pclr); |
| color->jp2_pclr = NULL; |
| } |
| |
| static OPJ_BOOL opj_jp2_check_color(opj_image_t *image, opj_jp2_color_t *color, |
| opj_event_mgr_t *p_manager) |
| { |
| OPJ_UINT16 i; |
| |
| /* testcase 4149.pdf.SIGSEGV.cf7.3501 */ |
| if (color->jp2_cdef) { |
| opj_jp2_cdef_info_t *info = color->jp2_cdef->info; |
| OPJ_UINT16 n = color->jp2_cdef->n; |
| OPJ_UINT32 nr_channels = |
| image->numcomps; /* FIXME image->numcomps == jp2->numcomps before color is applied ??? */ |
| |
| /* cdef applies to cmap channels if any */ |
| if (color->jp2_pclr && color->jp2_pclr->cmap) { |
| nr_channels = (OPJ_UINT32)color->jp2_pclr->nr_channels; |
| } |
| |
| for (i = 0; i < n; i++) { |
| if (info[i].cn >= nr_channels) { |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", |
| info[i].cn, nr_channels); |
| return OPJ_FALSE; |
| } |
| if (info[i].asoc == 65535U) { |
| continue; |
| } |
| |
| if (info[i].asoc > 0 && (OPJ_UINT32)(info[i].asoc - 1) >= nr_channels) { |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", |
| info[i].asoc - 1, nr_channels); |
| return OPJ_FALSE; |
| } |
| } |
| |
| /* issue 397 */ |
| /* ISO 15444-1 states that if cdef is present, it shall contain a complete list of channel definitions. */ |
| while (nr_channels > 0) { |
| for (i = 0; i < n; ++i) { |
| if ((OPJ_UINT32)info[i].cn == (nr_channels - 1U)) { |
| break; |
| } |
| } |
| if (i == n) { |
| opj_event_msg(p_manager, EVT_ERROR, "Incomplete channel definitions.\n"); |
| return OPJ_FALSE; |
| } |
| --nr_channels; |
| } |
| } |
| |
| /* testcases 451.pdf.SIGSEGV.f4c.3723, 451.pdf.SIGSEGV.5b5.3723 and |
| 66ea31acbb0f23a2bbc91f64d69a03f5_signal_sigsegv_13937c0_7030_5725.pdf */ |
| if (color->jp2_pclr && color->jp2_pclr->cmap) { |
| OPJ_UINT16 nr_channels = color->jp2_pclr->nr_channels; |
| opj_jp2_cmap_comp_t *cmap = color->jp2_pclr->cmap; |
| OPJ_BOOL *pcol_usage, is_sane = OPJ_TRUE; |
| |
| /* verify that all original components match an existing one */ |
| for (i = 0; i < nr_channels; i++) { |
| if (cmap[i].cmp >= image->numcomps) { |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid component index %d (>= %d).\n", |
| cmap[i].cmp, image->numcomps); |
| is_sane = OPJ_FALSE; |
| } |
| } |
| |
| pcol_usage = (OPJ_BOOL *) opj_calloc(nr_channels, sizeof(OPJ_BOOL)); |
| if (!pcol_usage) { |
| opj_event_msg(p_manager, EVT_ERROR, "Unexpected OOM.\n"); |
| return OPJ_FALSE; |
| } |
| /* verify that no component is targeted more than once */ |
| for (i = 0; i < nr_channels; i++) { |
| OPJ_BYTE mtyp = cmap[i].mtyp; |
| OPJ_BYTE pcol = cmap[i].pcol; |
| /* See ISO 15444-1 Table I.14 – MTYPi field values */ |
| if (mtyp != 0 && mtyp != 1) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Invalid value for cmap[%d].mtyp = %d.\n", i, |
| mtyp); |
| is_sane = OPJ_FALSE; |
| } else if (pcol >= nr_channels) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Invalid component/palette index for direct mapping %d.\n", pcol); |
| is_sane = OPJ_FALSE; |
| } else if (pcol_usage[pcol] && mtyp == 1) { |
| opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol); |
| is_sane = OPJ_FALSE; |
| } else if (mtyp == 0 && pcol != 0) { |
| /* I.5.3.5 PCOL: If the value of the MTYP field for this channel is 0, then |
| * the value of this field shall be 0. */ |
| opj_event_msg(p_manager, EVT_ERROR, "Direct use at #%d however pcol=%d.\n", i, |
| pcol); |
| is_sane = OPJ_FALSE; |
| } else if (mtyp == 1 && pcol != i) { |
| /* OpenJPEG implementation limitation. See assert(i == pcol); */ |
| /* in opj_jp2_apply_pclr() */ |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Implementation limitation: for palette mapping, " |
| "pcol[%d] should be equal to %d, but is equal " |
| "to %d.\n", i, i, pcol); |
| is_sane = OPJ_FALSE; |
| } else { |
| pcol_usage[pcol] = OPJ_TRUE; |
| } |
| } |
| /* verify that all components are targeted at least once */ |
| for (i = 0; i < nr_channels; i++) { |
| if (!pcol_usage[i] && cmap[i].mtyp != 0) { |
| opj_event_msg(p_manager, EVT_ERROR, "Component %d doesn't have a mapping.\n", |
| i); |
| is_sane = OPJ_FALSE; |
| } |
| } |
| /* Issue 235/447 weird cmap */ |
| if (1 && is_sane && (image->numcomps == 1U)) { |
| for (i = 0; i < nr_channels; i++) { |
| if (!pcol_usage[i]) { |
| is_sane = 0U; |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Component mapping seems wrong. Trying to correct.\n"); |
| break; |
| } |
| } |
| if (!is_sane) { |
| is_sane = OPJ_TRUE; |
| for (i = 0; i < nr_channels; i++) { |
| cmap[i].mtyp = 1U; |
| cmap[i].pcol = (OPJ_BYTE) i; |
| } |
| } |
| } |
| opj_free(pcol_usage); |
| if (!is_sane) { |
| return OPJ_FALSE; |
| } |
| } |
| |
| return OPJ_TRUE; |
| } |
| |
| /* file9.jp2 */ |
| static OPJ_BOOL opj_jp2_apply_pclr(opj_image_t *image, |
| opj_jp2_color_t *color, |
| opj_event_mgr_t * p_manager) |
| { |
| 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; |
| |
| for (i = 0; i < nr_channels; ++i) { |
| /* Palette mapping: */ |
| cmp = cmap[i].cmp; |
| if (image->comps[cmp].data == NULL) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "image->comps[%d].data == NULL in opj_jp2_apply_pclr().\n", i); |
| return OPJ_FALSE; |
| } |
| } |
| |
| old_comps = image->comps; |
| /* Overflow check: prevent integer overflow */ |
| for (i = 0; i < nr_channels; ++i) { |
| cmp = cmap[i].cmp; |
| if (old_comps[cmp].h == 0 || old_comps[cmp].w > ((OPJ_UINT32)-1) / sizeof(OPJ_INT32) / old_comps[cmp].h) { |
| return OPJ_FALSE; |
| } |
| } |
| |
| new_comps = (opj_image_comp_t*) |
| opj_malloc(nr_channels * sizeof(opj_image_comp_t)); |
| if (!new_comps) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Memory allocation failure in opj_jp2_apply_pclr().\n"); |
| return OPJ_FALSE; |
| } |
| for (i = 0; i < nr_channels; ++i) { |
| pcol = cmap[i].pcol; |
| cmp = cmap[i].cmp; |
| |
| /* Direct use */ |
| if (cmap[i].mtyp == 0) { |
| assert(pcol == 0); |
| new_comps[i] = old_comps[cmp]; |
| } else { |
| assert( i == pcol ); // probably wrong? |
| new_comps[i] = old_comps[cmp]; |
| } |
| |
| /* Palette mapping: */ |
| new_comps[i].data = (OPJ_INT32*) |
| opj_image_data_alloc(sizeof(OPJ_INT32) * old_comps[cmp].w * old_comps[cmp].h); |
| if (!new_comps[i].data) { |
| while (i > 0) { |
| -- i; |
| opj_image_data_free(new_comps[i].data); |
| } |
| opj_free(new_comps); |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Memory allocation failure in opj_jp2_apply_pclr().\n"); |
| return OPJ_FALSE; |
| } |
| new_comps[i].prec = channel_size[i]; |
| new_comps[i].sgnd = channel_sign[i]; |
| } |
| |
| top_k = color->jp2_pclr->nr_entries - 1; |
| |
| for (i = 0; i < nr_channels; ++i) { |
| /* Palette mapping: */ |
| cmp = cmap[i].cmp; |
| pcol = cmap[i].pcol; |
| src = old_comps[cmp].data; |
| dst = new_comps[i].data; |
| max = new_comps[i].w * new_comps[i].h; |
| |
| /* Prevent null pointer access */ |
| if (!src || !dst) { |
| for (j = 0; j < nr_channels; ++j) { |
| opj_image_data_free(new_comps[j].data); |
| } |
| opj_free(new_comps); |
| new_comps = NULL; |
| return OPJ_FALSE; |
| } |
| |
| /* Direct use: */ |
| if (cmap[i].mtyp == 0) { |
| for (j = 0; j < max; ++j) { |
| dst[j] = src[j]; |
| } |
| } else { |
| assert( i == pcol ); // probably wrong? |
| 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] = (OPJ_INT32)entries[k * nr_channels + pcol]; |
| } |
| } |
| } |
| |
| max = image->numcomps; |
| for (i = 0; i < max; ++i) { |
| if (old_comps[i].data) { |
| opj_image_data_free(old_comps[i].data); |
| } |
| } |
| |
| opj_free(old_comps); |
| image->comps = new_comps; |
| image->numcomps = nr_channels; |
| |
| return OPJ_TRUE; |
| }/* apply_pclr() */ |
| |
| static OPJ_BOOL opj_jp2_read_pclr(opj_jp2_t *jp2, |
| OPJ_BYTE * 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; |
| OPJ_BYTE *orig_header_data = p_pclr_header_data; |
| |
| /* 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; |
| } |
| |
| if (p_pclr_header_size < 3) { |
| 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; |
| if ((nr_entries == 0U) || (nr_entries > 1024U)) { |
| opj_event_msg(p_manager, EVT_ERROR, "Invalid PCLR box. Reports %d entries\n", |
| (int)nr_entries); |
| return OPJ_FALSE; |
| } |
| |
| opj_read_bytes(p_pclr_header_data, &l_value, 1); /* NPC */ |
| ++p_pclr_header_data; |
| nr_channels = (OPJ_UINT16) l_value; |
| if (nr_channels == 0U) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Invalid PCLR box. Reports 0 palette columns\n"); |
| return OPJ_FALSE; |
| } |
| |
| if (p_pclr_header_size < 3 + (OPJ_UINT32)nr_channels) { |
| return OPJ_FALSE; |
| } |
| |
| entries = (OPJ_UINT32*) opj_malloc(sizeof(OPJ_UINT32) * nr_channels * |
| nr_entries); |
| if (!entries) { |
| return OPJ_FALSE; |
| } |
| channel_size = (OPJ_BYTE*) opj_malloc(nr_channels); |
| if (!channel_size) { |
| opj_free(entries); |
| return OPJ_FALSE; |
| } |
| channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels); |
| if (!channel_sign) { |
| opj_free(entries); |
| opj_free(channel_size); |
| return OPJ_FALSE; |
| } |
| |
| jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t)); |
| if (!jp2_pclr) { |
| opj_free(entries); |
| opj_free(channel_size); |
| opj_free(channel_sign); |
| return OPJ_FALSE; |
| } |
| |
| 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 = (OPJ_BYTE) l_value; |
| 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] = (OPJ_BYTE)((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) { |
| OPJ_UINT32 bytes_to_read = (OPJ_UINT32)((channel_size[i] + 7) >> 3); |
| |
| if (bytes_to_read > sizeof(OPJ_UINT32)) { |
| bytes_to_read = sizeof(OPJ_UINT32); |
| } |
| if ((ptrdiff_t)p_pclr_header_size < (ptrdiff_t)(p_pclr_header_data - |
| orig_header_data) + (ptrdiff_t)bytes_to_read) { |
| return OPJ_FALSE; |
| } |
| |
| 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 opj_jp2_read_cmap(opj_jp2_t * jp2, |
| OPJ_BYTE * 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(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(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n"); |
| return OPJ_FALSE; |
| } |
| |
| nr_channels = jp2->color.jp2_pclr->nr_channels; |
| if (p_cmap_header_size < (OPJ_UINT32)nr_channels * 4) { |
| opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CMAP box.\n"); |
| return OPJ_FALSE; |
| } |
| |
| cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof( |
| opj_jp2_cmap_comp_t)); |
| if (!cmap) { |
| return OPJ_FALSE; |
| } |
| |
| |
| for (i = 0; i < nr_channels; ++i) { |
| opj_read_bytes_BE(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; |
| } |
| |
| static void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color, |
| opj_event_mgr_t *manager) |
| { |
| opj_jp2_cdef_info_t *info; |
| OPJ_UINT16 i, n, cn, asoc, acn; |
| |
| info = color->jp2_cdef->info; |
| n = color->jp2_cdef->n; |
| |
| for (i = 0; i < n; ++i) { |
| /* WATCH: acn = asoc - 1 ! */ |
| asoc = info[i].asoc; |
| cn = info[i].cn; |
| |
| if (cn >= image->numcomps) { |
| opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: cn=%d, numcomps=%d\n", |
| cn, image->numcomps); |
| continue; |
| } |
| if (asoc == 0 || asoc == 65535) { |
| image->comps[cn].alpha = info[i].typ; |
| continue; |
| } |
| |
| acn = (OPJ_UINT16)(asoc - 1); |
| if (acn >= image->numcomps) { |
| opj_event_msg(manager, EVT_WARNING, "opj_jp2_apply_cdef: acn=%d, numcomps=%d\n", |
| acn, image->numcomps); |
| continue; |
| } |
| |
| /* Swap only if color channel */ |
| if ((cn != acn) && (info[i].typ == 0)) { |
| opj_image_comp_t saved; |
| OPJ_UINT16 j; |
| |
| 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)); |
| |
| /* Swap channels in following channel definitions, don't bother with j <= i that are already processed */ |
| for (j = (OPJ_UINT16)(i + 1U); j < n ; ++j) { |
| if (info[j].cn == cn) { |
| info[j].cn = acn; |
| } else if (info[j].cn == acn) { |
| info[j].cn = cn; |
| } |
| /* asoc is related to color index. Do not update. */ |
| } |
| } |
| |
| image->comps[cn].alpha = info[i].typ; |
| } |
| |
| if (color->jp2_cdef->info) { |
| opj_free(color->jp2_cdef->info); |
| } |
| |
| opj_free(color->jp2_cdef); |
| color->jp2_cdef = NULL; |
| |
| }/* jp2_apply_cdef() */ |
| |
| static OPJ_BOOL opj_jp2_read_cdef(opj_jp2_t * jp2, |
| OPJ_BYTE * p_cdef_header_data, |
| OPJ_UINT32 p_cdef_header_size, |
| opj_event_mgr_t * p_manager |
| ) |
| { |
| opj_jp2_cdef_info_t *cdef_info; |
| OPJ_UINT16 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; |
| } |
| |
| if (p_cdef_header_size < 2) { |
| opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n"); |
| return OPJ_FALSE; |
| } |
| |
| opj_read_bytes(p_cdef_header_data, &l_value, 2); /* N */ |
| p_cdef_header_data += 2; |
| |
| if ((OPJ_UINT16)l_value == 0) { /* szukw000: FIXME */ |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Number of channel description is equal to zero in CDEF box.\n"); |
| return OPJ_FALSE; |
| } |
| |
| if (p_cdef_header_size < 2 + (OPJ_UINT32)(OPJ_UINT16)l_value * 6) { |
| opj_event_msg(p_manager, EVT_ERROR, "Insufficient data for CDEF box.\n"); |
| return OPJ_FALSE; |
| } |
| |
| cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof( |
| opj_jp2_cdef_info_t)); |
| if (!cdef_info) { |
| return OPJ_FALSE; |
| } |
| |
| jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t)); |
| if (!jp2->color.jp2_cdef) { |
| opj_free(cdef_info); |
| return OPJ_FALSE; |
| } |
| 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; |
| } |
| |
| static OPJ_BOOL opj_jp2_read_colr(opj_jp2_t *jp2, |
| OPJ_BYTE * 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(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(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(p_manager, EVT_ERROR, "Bad COLR header box (bad size: %d)\n", |
| p_colr_header_size); |
| return OPJ_FALSE; |
| } |
| if ((p_colr_header_size > 7) && |
| (jp2->enumcs != 14)) { /* handled below for CIELab) */ |
| /* testcase Altona_Technical_v20_x4.pdf */ |
| opj_event_msg(p_manager, EVT_WARNING, "Bad COLR header box (bad size: %d)\n", |
| p_colr_header_size); |
| } |
| |
| opj_read_bytes(p_colr_header_data, &jp2->enumcs, 4); /* EnumCS */ |
| |
| p_colr_header_data += 4; |
| |
| if (jp2->enumcs == 14) { /* CIELab */ |
| OPJ_UINT32 *cielab; |
| OPJ_UINT32 rl, ol, ra, oa, rb, ob, il; |
| |
| cielab = (OPJ_UINT32*)opj_malloc(9 * sizeof(OPJ_UINT32)); |
| if (cielab == NULL) { |
| opj_event_msg(p_manager, EVT_ERROR, "Not enough memory for cielab\n"); |
| return OPJ_FALSE; |
| } |
| cielab[0] = 14; /* enumcs */ |
| |
| /* default values */ |
| rl = ra = rb = ol = oa = ob = 0; |
| il = 0x00443530; /* D50 */ |
| cielab[1] = 0x44454600;/* DEF */ |
| |
| if (p_colr_header_size == 35) { |
| opj_read_bytes(p_colr_header_data, &rl, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &ol, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &ra, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &oa, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &rb, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &ob, 4); |
| p_colr_header_data += 4; |
| opj_read_bytes(p_colr_header_data, &il, 4); |
| p_colr_header_data += 4; |
| |
| cielab[1] = 0; |
| } else if (p_colr_header_size != 7) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Bad COLR header box (CIELab, bad size: %d)\n", p_colr_header_size); |
| } |
| cielab[2] = rl; |
| cielab[4] = ra; |
| cielab[6] = rb; |
| cielab[3] = ol; |
| cielab[5] = oa; |
| cielab[7] = ob; |
| cielab[8] = il; |
| |
| jp2->color.icc_profile_buf = (OPJ_BYTE*)cielab; |
| jp2->color.icc_profile_len = 0; |
| } |
| jp2->color.jp2_has_colr = 1; |
| } else if (jp2->meth == 2) { |
| /* ICC profile */ |
| OPJ_INT32 it_icc_value = 0; |
| OPJ_INT32 icc_len = (OPJ_INT32)p_colr_header_size - 3; |
| |
| jp2->color.icc_profile_len = (OPJ_UINT32)icc_len; |
| jp2->color.icc_profile_buf = (OPJ_BYTE*) opj_calloc(1, (size_t)icc_len); |
| if (!jp2->color.icc_profile_buf) { |
| jp2->color.icc_profile_len = 0; |
| return OPJ_FALSE; |
| } |
| |
| 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; |
| } |
| |
| jp2->color.jp2_has_colr = 1; |
| } else if (jp2->meth > 2) { |
| /* ISO/IEC 15444-1:2004 (E), Table I.9 Legal METH values: |
| conforming JP2 reader shall ignore the entire Colour Specification box.*/ |
| opj_event_msg(p_manager, EVT_INFO, |
| "COLR BOX meth value is not a regular value (%d), " |
| "so we will ignore the entire Colour Specification box. \n", jp2->meth); |
| } |
| |
| return OPJ_TRUE; |
| } |
| |
| OPJ_BOOL opj_jp2_decode(opj_jp2_t *jp2, |
| opj_stream_private_t *p_stream, |
| opj_image_t* p_image, |
| opj_event_mgr_t * p_manager) |
| { |
| if (!p_image) { |
| return OPJ_FALSE; |
| } |
| |
| /* J2K decoding */ |
| if (! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager)) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Failed to decode the codestream in the JP2 file\n"); |
| return OPJ_FALSE; |
| } |
| |
| if (jp2->j2k->m_specific_param.m_decoder.m_numcomps_to_decode) { |
| /* Bypass all JP2 component transforms */ |
| return OPJ_TRUE; |
| } |
| |
| if (!jp2->ignore_pclr_cmap_cdef) { |
| if (!opj_jp2_check_color(p_image, &(jp2->color), p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* Set Image Color Space */ |
| if (jp2->enumcs == 16) { |
| p_image->color_space = OPJ_CLRSPC_SRGB; |
| } else if (jp2->enumcs == 17) { |
| p_image->color_space = OPJ_CLRSPC_GRAY; |
| } else if (jp2->enumcs == 18) { |
| p_image->color_space = OPJ_CLRSPC_SYCC; |
| } else if (jp2->enumcs == 24) { |
| p_image->color_space = OPJ_CLRSPC_EYCC; |
| } else if (jp2->enumcs == 12) { |
| p_image->color_space = OPJ_CLRSPC_CMYK; |
| } else { |
| p_image->color_space = OPJ_CLRSPC_UNKNOWN; |
| } |
| |
| if (jp2->color.jp2_pclr) { |
| /* Part 1, I.5.3.4: Either both or none : */ |
| if (!jp2->color.jp2_pclr->cmap) { |
| opj_jp2_free_pclr(&(jp2->color)); |
| } else { |
| if (!opj_jp2_apply_pclr(p_image, &(jp2->color), p_manager)) { |
| return OPJ_FALSE; |
| } |
| } |
| } |
| |
| /* Apply the color space if needed */ |
| if (jp2->color.jp2_cdef) { |
| opj_jp2_apply_cdef(p_image, &(jp2->color), p_manager); |
| } |
| |
| 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; |
| } |
| |
| static OPJ_BOOL opj_jp2_write_jp2h(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager |
| ) |
| { |
| opj_jp2_img_header_writer_handler_t l_writers [4]; |
| opj_jp2_img_header_writer_handler_t * l_current_writer; |
| |
| OPJ_INT32 i, l_nb_pass; |
| /* size of data for super box*/ |
| OPJ_UINT32 l_jp2h_size = 8; |
| OPJ_BOOL l_result = OPJ_TRUE; |
| |
| /* to store the data of the super box */ |
| OPJ_BYTE l_jp2h_data [8]; |
| |
| /* preconditions */ |
| assert(stream != 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 = opj_jp2_write_ihdr; |
| l_writers[1].handler = opj_jp2_write_bpcc; |
| l_writers[2].handler = opj_jp2_write_colr; |
| } else { |
| l_nb_pass = 2; |
| l_writers[0].handler = opj_jp2_write_ihdr; |
| l_writers[1].handler = opj_jp2_write_colr; |
| } |
| |
| if (jp2->color.jp2_cdef != NULL) { |
| l_writers[l_nb_pass].handler = opj_jp2_write_cdef; |
| l_nb_pass++; |
| } |
| |
| /* 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(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(stream, l_jp2h_data, 8, p_manager) != 8) { |
| opj_event_msg(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(stream, l_current_writer->m_data, |
| l_current_writer->m_size, p_manager) != l_current_writer->m_size) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Stream error while writing 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 OPJ_BOOL opj_jp2_write_ftyp(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager) |
| { |
| OPJ_UINT32 i; |
| OPJ_UINT32 l_ftyp_size; |
| OPJ_BYTE * l_ftyp_data, * l_current_data_ptr; |
| OPJ_BOOL l_result; |
| |
| /* preconditions */ |
| assert(cio != 00); |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| l_ftyp_size = 16 + 4 * jp2->numcl; |
| |
| l_ftyp_data = (OPJ_BYTE *) opj_calloc(1, l_ftyp_size); |
| |
| if (l_ftyp_data == 00) { |
| opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n"); |
| return OPJ_FALSE; |
| } |
| |
| 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(p_manager, EVT_ERROR, |
| "Error while writing ftyp data to stream\n"); |
| } |
| |
| opj_free(l_ftyp_data); |
| |
| return l_result; |
| } |
| |
| static OPJ_BOOL opj_jp2_write_jp2c(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager) |
| { |
| OPJ_OFF_T j2k_codestream_exit; |
| OPJ_BYTE 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, |
| (OPJ_UINT32)(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(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(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(p_manager, EVT_ERROR, "Failed to seek in the stream.\n"); |
| return OPJ_FALSE; |
| } |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_write_jp(opj_jp2_t *jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager) |
| { |
| /* 12 bytes will be read */ |
| OPJ_BYTE l_signature_data [12]; |
| |
| /* preconditions */ |
| assert(cio != 00); |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| OPJ_UNUSED(jp2); |
| |
| /* 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; |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| /* JP2 decoder interface */ |
| /* ----------------------------------------------------------------------- */ |
| |
| void opj_jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters) |
| { |
| /* setup the J2K codec */ |
| opj_j2k_setup_decoder(jp2->j2k, parameters); |
| |
| /* further JP2 initializations go here */ |
| jp2->color.jp2_has_colr = 0; |
| jp2->comps = NULL; |
| jp2->ignore_pclr_cmap_cdef = parameters->flags & |
| OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG; |
| } |
| |
| OPJ_BOOL opj_jp2_set_threads(opj_jp2_t *jp2, OPJ_UINT32 num_threads) |
| { |
| return opj_j2k_set_threads(jp2->j2k, num_threads); |
| } |
| |
| /* ----------------------------------------------------------------------- */ |
| /* JP2 encoder interface */ |
| /* ----------------------------------------------------------------------- */ |
| |
| OPJ_BOOL opj_jp2_setup_encoder(opj_jp2_t *jp2, |
| opj_cparameters_t *parameters, |
| opj_image_t *image, |
| opj_event_mgr_t * p_manager) |
| { |
| OPJ_UINT32 i; |
| OPJ_UINT32 depth_0; |
| OPJ_UINT32 sign; |
| OPJ_UINT32 alpha_count; |
| OPJ_UINT32 color_channels = 0U; |
| OPJ_UINT32 alpha_channel = 0U; |
| |
| |
| if (!jp2 || !parameters || !image) { |
| return OPJ_FALSE; |
| } |
| |
| /* setup the J2K codec */ |
| /* ------------------- */ |
| |
| /* Check if number of components respects standard */ |
| if (image->numcomps < 1 || image->numcomps > 16384) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Invalid number of components specified while setting up JP2 encoder\n"); |
| return OPJ_FALSE; |
| } |
| |
| if (opj_j2k_setup_encoder(jp2->j2k, parameters, image, |
| p_manager) == OPJ_FALSE) { |
| return OPJ_FALSE; |
| } |
| |
| /* setup the JP2 codec */ |
| /* ------------------- */ |
| |
| /* Profile box */ |
| |
| jp2->brand = JP2_JP2; /* BR */ |
| jp2->minversion = 0; /* MinV */ |
| jp2->numcl = 1; |
| jp2->cl = (OPJ_UINT32*) opj_malloc(jp2->numcl * sizeof(OPJ_UINT32)); |
| if (!jp2->cl) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory when setup the JP2 encoder\n"); |
| return OPJ_FALSE; |
| } |
| 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)); |
| if (!jp2->comps) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory when setup the JP2 encoder\n"); |
| /* Memory of jp2->cl will be freed by opj_jp2_destroy */ |
| return OPJ_FALSE; |
| } |
| |
| 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++) { |
| OPJ_UINT32 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->icc_profile_len) { |
| jp2->meth = 2; |
| jp2->enumcs = 0; |
| } else { |
| 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 */ |
| } |
| } |
| |
| /* Channel Definition box */ |
| /* FIXME not provided by parameters */ |
| /* We try to do what we can... */ |
| alpha_count = 0U; |
| for (i = 0; i < image->numcomps; i++) { |
| if (image->comps[i].alpha != 0) { |
| alpha_count++; |
| alpha_channel = i; |
| } |
| } |
| if (alpha_count == 1U) { /* no way to deal with more than 1 alpha channel */ |
| switch (jp2->enumcs) { |
| case 16: |
| case 18: |
| color_channels = 3; |
| break; |
| case 17: |
| color_channels = 1; |
| break; |
| default: |
| alpha_count = 0U; |
| break; |
| } |
| if (alpha_count == 0U) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Alpha channel specified but unknown enumcs. No cdef box will be created.\n"); |
| } else if (image->numcomps < (color_channels + 1)) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Alpha channel specified but not enough image components for an automatic cdef box creation.\n"); |
| alpha_count = 0U; |
| } else if ((OPJ_UINT32)alpha_channel < color_channels) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Alpha channel position conflicts with color channel. No cdef box will be created.\n"); |
| alpha_count = 0U; |
| } |
| } else if (alpha_count > 1) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Multiple alpha channels specified. No cdef box will be created.\n"); |
| } |
| if (alpha_count == 1U) { /* if here, we know what we can do */ |
| jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t)); |
| if (!jp2->color.jp2_cdef) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory to setup the JP2 encoder\n"); |
| return OPJ_FALSE; |
| } |
| /* no memset needed, all values will be overwritten except if jp2->color.jp2_cdef->info allocation fails, */ |
| /* in which case jp2->color.jp2_cdef->info will be NULL => valid for destruction */ |
| jp2->color.jp2_cdef->info = (opj_jp2_cdef_info_t*) opj_malloc( |
| image->numcomps * sizeof(opj_jp2_cdef_info_t)); |
| if (!jp2->color.jp2_cdef->info) { |
| /* memory will be freed by opj_jp2_destroy */ |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory to setup the JP2 encoder\n"); |
| return OPJ_FALSE; |
| } |
| jp2->color.jp2_cdef->n = (OPJ_UINT16) |
| image->numcomps; /* cast is valid : image->numcomps [1,16384] */ |
| for (i = 0U; i < color_channels; i++) { |
| jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16) |
| i; /* cast is valid : image->numcomps [1,16384] */ |
| jp2->color.jp2_cdef->info[i].typ = 0U; |
| jp2->color.jp2_cdef->info[i].asoc = (OPJ_UINT16)(i + |
| 1U); /* No overflow + cast is valid : image->numcomps [1,16384] */ |
| } |
| for (; i < image->numcomps; i++) { |
| if (image->comps[i].alpha != 0) { /* we'll be here exactly once */ |
| jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16) |
| i; /* cast is valid : image->numcomps [1,16384] */ |
| jp2->color.jp2_cdef->info[i].typ = 1U; /* Opacity channel */ |
| jp2->color.jp2_cdef->info[i].asoc = |
| 0U; /* Apply alpha channel to the whole image */ |
| } else { |
| /* Unknown channel */ |
| jp2->color.jp2_cdef->info[i].cn = (OPJ_UINT16) |
| i; /* cast is valid : image->numcomps [1,16384] */ |
| jp2->color.jp2_cdef->info[i].typ = 65535U; |
| jp2->color.jp2_cdef->info[i].asoc = 65535U; |
| } |
| } |
| } |
| |
| jp2->precedence = 0; /* PRECEDENCE */ |
| jp2->approx = 0; /* APPROX */ |
| |
| jp2->jpip_on = parameters->jpip_on; |
| |
| return OPJ_TRUE; |
| } |
| |
| OPJ_BOOL opj_jp2_encode(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager) |
| { |
| return opj_j2k_encode(jp2->j2k, stream, p_manager); |
| } |
| |
| OPJ_BOOL opj_jp2_end_decompress(opj_jp2_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 */ |
| if (! opj_jp2_setup_end_header_reading(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* write header */ |
| if (! opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| return opj_j2k_end_decompress(jp2->j2k, cio, p_manager); |
| } |
| |
| OPJ_BOOL opj_jp2_end_compress(opj_jp2_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 */ |
| if (! opj_jp2_setup_end_header_writing(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| if (! opj_j2k_end_compress(jp2->j2k, cio, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* write header */ |
| return opj_jp2_exec(jp2, jp2->m_procedure_list, cio, p_manager); |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_end_header_writing(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| #ifdef USE_JPIP |
| if (jp2->jpip_on) { |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jpip_write_iptr, p_manager)) { |
| return OPJ_FALSE; |
| } |
| } |
| #endif |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_write_jp2c, p_manager)) { |
| return OPJ_FALSE; |
| } |
| /* DEVELOPER CORNER, add your custom procedures */ |
| #ifdef USE_JPIP |
| if (jp2->jpip_on) { |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jpip_write_cidx, p_manager)) { |
| return OPJ_FALSE; |
| } |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jpip_write_fidx, p_manager)) { |
| return OPJ_FALSE; |
| } |
| } |
| #endif |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_end_header_reading(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_read_header_procedure, p_manager)) { |
| return OPJ_FALSE; |
| } |
| /* DEVELOPER CORNER, add your custom procedures */ |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_default_validation(opj_jp2_t * jp2, |
| opj_stream_private_t *cio, |
| opj_event_mgr_t * p_manager |
| ) |
| { |
| OPJ_BOOL l_is_valid = OPJ_TRUE; |
| OPJ_UINT32 i; |
| |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(cio != 00); |
| assert(p_manager != 00); |
| |
| OPJ_UNUSED(p_manager); |
| |
| /* JPEG2000 codec validation */ |
| |
| /* 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 & 0x7FU) < |
| 38U); /* 0 is valid, ignore sign for check */ |
| } |
| |
| /* 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; |
| } |
| |
| static OPJ_BOOL opj_jp2_read_header_procedure(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| 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; |
| const opj_jp2_header_handler_t * l_current_handler_misplaced; |
| OPJ_UINT32 l_last_data_size = OPJ_BOX_SIZE; |
| OPJ_UINT32 l_current_data_size; |
| OPJ_BYTE * l_current_data = 00; |
| |
| /* preconditions */ |
| assert(stream != 00); |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| l_current_data = (OPJ_BYTE*)opj_calloc(1, l_last_data_size); |
| |
| if (l_current_data == 00) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory to handle jpeg2000 file header\n"); |
| return OPJ_FALSE; |
| } |
| |
| while (opj_jp2_read_boxhdr(&box, &l_nb_bytes_read, stream, 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(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(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n"); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| /* testcase 1851.pdf.SIGSEGV.ce9.948 */ |
| else if (box.length < l_nb_bytes_read) { |
| opj_event_msg(p_manager, EVT_ERROR, "invalid box size %d (%x)\n", box.length, |
| box.type); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| |
| l_current_handler = opj_jp2_find_handler(box.type); |
| l_current_handler_misplaced = opj_jp2_img_find_handler(box.type); |
| l_current_data_size = box.length - l_nb_bytes_read; |
| |
| if ((l_current_handler != 00) || (l_current_handler_misplaced != 00)) { |
| if (l_current_handler == 00) { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Found a misplaced '%c%c%c%c' box outside jp2h box\n", |
| (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16), |
| (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0)); |
| if (jp2->jp2_state & JP2_STATE_HEADER) { |
| /* read anyway, we already have jp2h */ |
| l_current_handler = l_current_handler_misplaced; |
| } else { |
| opj_event_msg(p_manager, EVT_WARNING, |
| "JPEG2000 Header box not read yet, '%c%c%c%c' box will be ignored\n", |
| (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16), |
| (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0)); |
| jp2->jp2_state |= JP2_STATE_UNKNOWN; |
| if (opj_stream_skip(stream, l_current_data_size, |
| p_manager) != l_current_data_size) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Problem with skipping JPEG2000 box, stream error\n"); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| continue; |
| } |
| } |
| if ((OPJ_OFF_T)l_current_data_size > opj_stream_get_number_byte_left(stream)) { |
| /* do not even try to malloc if we can't read */ |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Invalid box size %d for box '%c%c%c%c'. Need %d bytes, %d bytes remaining \n", |
| box.length, (OPJ_BYTE)(box.type >> 24), (OPJ_BYTE)(box.type >> 16), |
| (OPJ_BYTE)(box.type >> 8), (OPJ_BYTE)(box.type >> 0), l_current_data_size, |
| (OPJ_UINT32)opj_stream_get_number_byte_left(stream)); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| if (l_current_data_size > l_last_data_size) { |
| OPJ_BYTE* new_current_data = (OPJ_BYTE*)opj_realloc(l_current_data, |
| l_current_data_size); |
| if (!new_current_data) { |
| opj_free(l_current_data); |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Not enough memory to handle jpeg2000 box\n"); |
| return OPJ_FALSE; |
| } |
| l_current_data = new_current_data; |
| l_last_data_size = l_current_data_size; |
| } |
| |
| l_nb_bytes_read = (OPJ_UINT32)opj_stream_read_data(stream, l_current_data, |
| l_current_data_size, p_manager); |
| if (l_nb_bytes_read != l_current_data_size) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Problem with reading JPEG2000 box, stream error\n"); |
| opj_free(l_current_data); |
| 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 { |
| if (!(jp2->jp2_state & JP2_STATE_SIGNATURE)) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Malformed JP2 file format: first box must be JPEG 2000 signature box\n"); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| if (!(jp2->jp2_state & JP2_STATE_FILE_TYPE)) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Malformed JP2 file format: second box must be file type box\n"); |
| opj_free(l_current_data); |
| return OPJ_FALSE; |
| } |
| jp2->jp2_state |= JP2_STATE_UNKNOWN; |
| if (opj_stream_skip(stream, l_current_data_size, |
| p_manager) != l_current_data_size) { |
| if (jp2->jp2_state & JP2_STATE_CODESTREAM) { |
| /* If we already read the codestream, do not error out */ |
| /* Needed for data/input/nonregression/issue254.jp2 */ |
| opj_event_msg(p_manager, EVT_WARNING, |
| "Problem with skipping JPEG2000 box, stream error\n"); |
| opj_free(l_current_data); |
| return OPJ_TRUE; |
| } else { |
| opj_event_msg(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; |
| } |
| |
| /** |
| * Executes 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 stream 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 opj_jp2_exec(opj_jp2_t * jp2, |
| opj_procedure_list_t * p_procedure_list, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager |
| ) |
| |
| { |
| OPJ_BOOL(** l_procedure)(opj_jp2_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(stream != 00); |
| assert(p_manager != 00); |
| |
| l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list); |
| l_procedure = (OPJ_BOOL(**)(opj_jp2_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, stream, p_manager); |
| ++l_procedure; |
| } |
| |
| /* and clear the procedure list at the end. */ |
| opj_procedure_list_clear(p_procedure_list); |
| return l_result; |
| } |
| |
| OPJ_BOOL opj_jp2_start_compress(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_image_t * p_image, |
| opj_event_mgr_t * p_manager |
| ) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(stream != 00); |
| assert(p_manager != 00); |
| |
| /* customization of the validation */ |
| if (! opj_jp2_setup_encoding_validation(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* validation of the parameters codec */ |
| if (! opj_jp2_exec(jp2, jp2->m_validation_list, stream, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* customization of the encoding */ |
| if (! opj_jp2_setup_header_writing(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* write header */ |
| if (! opj_jp2_exec(jp2, jp2->m_procedure_list, stream, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| return opj_j2k_start_compress(jp2->j2k, stream, p_image, p_manager); |
| } |
| |
| static const opj_jp2_header_handler_t * opj_jp2_find_handler(OPJ_UINT32 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 * opj_jp2_img_find_handler( |
| OPJ_UINT32 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. |
| */ |
| static OPJ_BOOL opj_jp2_read_jp(opj_jp2_t *jp2, |
| OPJ_BYTE * p_header_data, |
| OPJ_UINT32 p_header_size, |
| opj_event_mgr_t * p_manager |
| ) |
| |
| { |
| OPJ_UINT32 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(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(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(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. |
| */ |
| static OPJ_BOOL opj_jp2_read_ftyp(opj_jp2_t *jp2, |
| OPJ_BYTE * p_header_data, |
| OPJ_UINT32 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(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(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(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 = (OPJ_UINT32 *) opj_calloc(jp2->numcl, sizeof(OPJ_UINT32)); |
| if (jp2->cl == 00) { |
| opj_event_msg(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n"); |
| return OPJ_FALSE; |
| } |
| } |
| |
| 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; |
| } |
| |
| static OPJ_BOOL opj_jp2_skip_jp2c(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(stream != 00); |
| assert(p_manager != 00); |
| |
| jp2->j2k_codestream_offset = opj_stream_tell(stream); |
| |
| if (opj_stream_skip(stream, 8, p_manager) != 8) { |
| return OPJ_FALSE; |
| } |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jpip_skip_iptr(opj_jp2_t *jp2, |
| opj_stream_private_t *stream, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(stream != 00); |
| assert(p_manager != 00); |
| |
| jp2->jpip_iptr_offset = opj_stream_tell(stream); |
| |
| if (opj_stream_skip(stream, 24, p_manager) != 24) { |
| 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 recognized. |
| */ |
| static OPJ_BOOL opj_jp2_read_jp2h(opj_jp2_t *jp2, |
| OPJ_BYTE *p_header_data, |
| OPJ_UINT32 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; |
| OPJ_BOOL l_has_ihdr = 0; |
| |
| /* 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(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 (! opj_jp2_read_boxhdr_char(&box, p_header_data, &l_box_size, p_header_size, |
| p_manager)) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Stream error while reading JP2 Header box\n"); |
| return OPJ_FALSE; |
| } |
| |
| if (box.length > p_header_size) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Stream error while reading JP2 Header box: box length is inconsistent.\n"); |
| return OPJ_FALSE; |
| } |
| |
| l_current_handler = opj_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; |
| } |
| |
| if (box.type == JP2_IHDR) { |
| l_has_ihdr = 1; |
| } |
| |
| p_header_data += l_current_data_size; |
| p_header_size -= box.length; |
| } |
| |
| if (l_has_ihdr == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, |
| "Stream error while reading JP2 Header box: no 'ihdr' box.\n"); |
| return OPJ_FALSE; |
| } |
| |
| jp2->jp2_state |= JP2_STATE_HEADER; |
| jp2->has_jp2h = 1; |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_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 |
| ) |
| { |
| 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(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_UINT32)(l_value); |
| |
| opj_read_bytes(p_data, &l_value, 4); |
| p_data += 4; |
| box->type = (OPJ_UINT32)(l_value); |
| |
| *p_number_bytes_read = 8; |
| |
| /* do we have a "special very large box ?" */ |
| /* read then the XLBox */ |
| if (box->length == 1) { |
| OPJ_UINT32 l_xl_part_size; |
| |
| if (p_box_max_size < 16) { |
| opj_event_msg(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(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_UINT32)(l_value); |
| |
| if (box->length == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n"); |
| return OPJ_FALSE; |
| } |
| } else if (box->length == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n"); |
| return OPJ_FALSE; |
| } |
| if (box->length < *p_number_bytes_read) { |
| opj_event_msg(p_manager, EVT_ERROR, "Box length is inconsistent.\n"); |
| return OPJ_FALSE; |
| } |
| return OPJ_TRUE; |
| } |
| |
| OPJ_BOOL opj_jp2_read_header(opj_stream_private_t *p_stream, |
| opj_jp2_t *jp2, |
| opj_image_t ** p_image, |
| opj_event_mgr_t * p_manager |
| ) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_stream != 00); |
| assert(p_manager != 00); |
| |
| /* customization of the validation */ |
| if (! opj_jp2_setup_decoding_validation(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* customization of the encoding */ |
| if (! opj_jp2_setup_header_reading(jp2, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* validation of the parameters codec */ |
| if (! opj_jp2_exec(jp2, jp2->m_validation_list, p_stream, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* read header */ |
| if (! opj_jp2_exec(jp2, jp2->m_procedure_list, p_stream, p_manager)) { |
| return OPJ_FALSE; |
| } |
| if (jp2->has_jp2h == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, "JP2H box missing. Required.\n"); |
| return OPJ_FALSE; |
| } |
| if (jp2->has_ihdr == 0) { |
| opj_event_msg(p_manager, EVT_ERROR, "IHDR box_missing. Required.\n"); |
| return OPJ_FALSE; |
| } |
| |
| return opj_j2k_read_header(p_stream, |
| jp2->j2k, |
| p_image, |
| p_manager); |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_encoding_validation(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| if (! opj_procedure_list_add_procedure(jp2->m_validation_list, |
| (opj_procedure)opj_jp2_default_validation, p_manager)) { |
| return OPJ_FALSE; |
| } |
| /* DEVELOPER CORNER, add your custom validation procedure */ |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_decoding_validation(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| OPJ_UNUSED(jp2); |
| OPJ_UNUSED(p_manager); |
| |
| /* DEVELOPER CORNER, add your custom validation procedure */ |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_header_writing(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_write_jp, p_manager)) { |
| return OPJ_FALSE; |
| } |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_write_ftyp, p_manager)) { |
| return OPJ_FALSE; |
| } |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_write_jp2h, p_manager)) { |
| return OPJ_FALSE; |
| } |
| if (jp2->jpip_on) { |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jpip_skip_iptr, p_manager)) { |
| return OPJ_FALSE; |
| } |
| } |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_skip_jp2c, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* DEVELOPER CORNER, insert your custom procedures */ |
| |
| return OPJ_TRUE; |
| } |
| |
| static OPJ_BOOL opj_jp2_setup_header_reading(opj_jp2_t *jp2, |
| opj_event_mgr_t * p_manager) |
| { |
| /* preconditions */ |
| assert(jp2 != 00); |
| assert(p_manager != 00); |
| |
| if (! opj_procedure_list_add_procedure(jp2->m_procedure_list, |
| (opj_procedure)opj_jp2_read_header_procedure, p_manager)) { |
| return OPJ_FALSE; |
| } |
| |
| /* DEVELOPER CORNER, add your custom procedures */ |
| |
| return OPJ_TRUE; |
| } |
| |
| OPJ_BOOL opj_jp2_read_tile_header(opj_jp2_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 opj_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); |
| } |
| |
| OPJ_BOOL opj_jp2_write_tile(opj_jp2_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 opj_j2k_write_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size, |
| p_stream, p_manager); |
| } |
| |
| OPJ_BOOL opj_jp2_decode_tile(opj_jp2_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 opj_j2k_decode_tile(p_jp2->j2k, p_tile_index, p_data, p_data_size, |
| p_stream, p_manager); |
| } |
| |
| void opj_jp2_destroy(opj_jp2_t *jp2) |
| |