X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=libopenjpeg%2Fjp2.c;h=bfdf2cc817c37d04f28bf50109b844c26a8b3194;hb=1a5c59326ab4836618f88caefa8b66760f624793;hp=d102349d82e78f4ddfc63ef9f4095f2ffb09ab2d;hpb=1200dd871a3f39d8b7367f3bcbeb2d144c38369a;p=openjpeg.git diff --git a/libopenjpeg/jp2.c b/libopenjpeg/jp2.c index d102349d..bfdf2cc8 100644 --- a/libopenjpeg/jp2.c +++ b/libopenjpeg/jp2.c @@ -5,6 +5,7 @@ * 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 @@ -28,12 +29,13 @@ * 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 */ /*@{*/ @@ -44,7 +46,7 @@ Read box headers @param box @return Returns true if successful, returns false otherwise */ -static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box); +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 @@ -52,12 +54,53 @@ Read the IHDR box - Image Header box @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio); +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, fale else. + */ +static opj_bool jp2_read_ihdr_v2( + opj_jp2_v2_t *jp2, + unsigned char * p_image_header_data, + unsigned int p_image_header_size, + struct opj_event_mgr * p_manager + ); + static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio); static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio); -static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio); +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); -static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio); /** Write the FTYP box - File type box @param jp2 JP2 handle @@ -70,9 +113,44 @@ Read the FTYP box - File type box @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio); -static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index); -static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset); +static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio); + +/** + * 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, + unsigned int p_header_size, + 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); +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 @@ -80,29 +158,267 @@ Read the JP box - JPEG 2000 signature @param cio Input buffer stream @return Returns true if successful, returns false otherwise */ -static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio); +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_jp2_color_t *color, opj_image_t *image); +/** +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 bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio); +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 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 ); + +/** + * 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 bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box) { +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 false; + return OPJ_FALSE; } box->length = cio_read(cio, 4); if (box->length == 0) @@ -112,7 +428,61 @@ static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t box->length = cio_numbytesleft(cio) + 8; } - return true; + return OPJ_TRUE; +} + +/** + * 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 @@ -139,7 +509,7 @@ static void jp2_write_url(opj_cio_t *cio, char *Idx_file) { } #endif -static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { +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; @@ -147,7 +517,7 @@ static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_IHDR != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected IHDR Marker\n"); - return false; + return OPJ_FALSE; } jp2->h = cio_read(cio, 4); /* HEIGHT */ @@ -163,10 +533,77 @@ static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with IHDR Box\n"); - return false; + return OPJ_FALSE; + } + + return OPJ_TRUE; +} + +/** + * 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_image_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 image header is valid, fale else. + */ +opj_bool jp2_read_ihdr_v2( + opj_jp2_v2_t *jp2, + unsigned char * p_image_header_data, + unsigned int 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 (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); } - return true; + 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; } static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) { @@ -211,7 +648,7 @@ static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { } -static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { +static opj_bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { unsigned int i; opj_jp2_box_t box; @@ -220,7 +657,7 @@ static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_BPCC != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected BPCC Marker\n"); - return false; + return OPJ_FALSE; } for (i = 0; i < jp2->numcomps; i++) { @@ -229,10 +666,54 @@ static bool jp2_read_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) { if (cio_tell(cio) - box.init_pos != box.length) { opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n"); - return false; + return OPJ_FALSE; + } + + return OPJ_TRUE; +} + +/** + * 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 pointer that will hold the size of the bpc header + * @param p_bpc_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. + */ +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 true; + return OPJ_TRUE; } static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { @@ -246,11 +727,10 @@ static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */ cio_write(cio, jp2->approx, 1); /* APPROX */ - if (jp2->meth == 1) { - cio_write(cio, jp2->enumcs, 4); /* EnumCS */ - } else { - cio_write(cio, 0, 1); /* PROFILE (??) */ - } + 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); @@ -258,165 +738,832 @@ static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -static bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_jp2_box_t box; - int skip_len; +static void jp2_free_pclr(opj_jp2_color_t *color) +{ + opj_free(color->jp2_pclr->channel_sign); + opj_free(color->jp2_pclr->channel_size); + opj_free(color->jp2_pclr->entries); - opj_common_ptr cinfo = jp2->cinfo; + if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap); - jp2_read_boxhdr(cinfo, cio, &box); - do { - if (JP2_COLR != box.type) { - cio_skip(cio, box.length - 8); - jp2_read_boxhdr(cinfo, cio, &box); - } - } while(JP2_COLR != box.type); + opj_free(color->jp2_pclr); color->jp2_pclr = NULL; +} - jp2->meth = cio_read(cio, 1); /* METH */ - jp2->precedence = cio_read(cio, 1); /* PRECEDENCE */ - jp2->approx = cio_read(cio, 1); /* APPROX */ +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); +} - if (jp2->meth == 1) { - jp2->enumcs = cio_read(cio, 4); /* EnumCS */ - } else { - /* skip PROFILE */ - skip_len = box.init_pos + box.length - cio_tell(cio); - if (skip_len < 0) { - opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H box size\n"); - return false; - } - cio_skip(cio, box.init_pos + box.length - cio_tell(cio)); +static void jp2_apply_pclr(opj_jp2_color_t *color, opj_image_t *image) +{ + opj_image_comp_t *old_comps, *new_comps; + unsigned char *channel_size, *channel_sign; + unsigned int *entries; + opj_jp2_cmap_comp_t *cmap; + int *src, *dst; + unsigned int j, max; + unsigned short i, nr_channels, cmp, pcol; + int k, top_k; + + channel_size = color->jp2_pclr->channel_size; + channel_sign = color->jp2_pclr->channel_sign; + entries = color->jp2_pclr->entries; + cmap = color->jp2_pclr->cmap; + nr_channels = color->jp2_pclr->nr_channels; + + old_comps = image->comps; + new_comps = (opj_image_comp_t*) + opj_malloc(nr_channels * sizeof(opj_image_comp_t)); + + for(i = 0; i < nr_channels; ++i) + { + pcol = cmap[i].pcol; cmp = cmap[i].cmp; + + new_comps[pcol] = old_comps[cmp]; + + if(cmap[i].mtyp == 0) /* Direct use */ + { + old_comps[cmp].data = NULL; continue; + } +/* Palette mapping: */ + new_comps[pcol].data = (int*) + opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(int)); + new_comps[pcol].prec = channel_size[i]; + new_comps[pcol].sgnd = channel_sign[i]; + } + top_k = color->jp2_pclr->nr_entries - 1; + + for(i = 0; i < nr_channels; ++i) + { +/* Direct use: */ + if(cmap[i].mtyp == 0) continue; + +/* Palette mapping: */ + cmp = cmap[i].cmp; pcol = cmap[i].pcol; + src = old_comps[cmp].data; + dst = new_comps[pcol].data; + max = new_comps[pcol].w * new_comps[pcol].h; + + for(j = 0; j < max; ++j) + { +/* The index */ + if((k = src[j]) < 0) k = 0; else if(k > top_k) k = top_k; +/* The colour */ + dst[j] = entries[k * nr_channels + pcol]; + } + } + max = image->numcomps; + for(i = 0; i < max; ++i) + { + if(old_comps[i].data) opj_free(old_comps[i].data); + } + opj_free(old_comps); + image->comps = new_comps; + image->numcomps = nr_channels; + + jp2_free_pclr(color); + +}/* apply_pclr() */ + +static opj_bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_box_t *box, opj_jp2_color_t *color) +{ + opj_jp2_pclr_t *jp2_pclr; + unsigned char *channel_size, *channel_sign; + unsigned int *entries; + unsigned short nr_entries, nr_channels; + unsigned short i, j; + unsigned char uc; + + OPJ_ARG_NOT_USED(box); + OPJ_ARG_NOT_USED(jp2); + +/* Part 1, I.5.3.4: 'There shall be at most one Palette box inside + * a JP2 Header box' : +*/ + if(color->jp2_pclr) return OPJ_FALSE; + + nr_entries = (unsigned short)cio_read(cio, 2); /* NE */ + nr_channels = (unsigned short)cio_read(cio, 1);/* NPC */ + + entries = (unsigned int*) + opj_malloc(nr_channels * nr_entries * sizeof(unsigned int)); + channel_size = (unsigned char*)opj_malloc(nr_channels); + channel_sign = (unsigned char*)opj_malloc(nr_channels); + + jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t)); + jp2_pclr->channel_sign = channel_sign; + jp2_pclr->channel_size = channel_size; + jp2_pclr->entries = entries; + jp2_pclr->nr_entries = nr_entries; + jp2_pclr->nr_channels = nr_channels; + jp2_pclr->cmap = NULL; + + color->jp2_pclr = jp2_pclr; + + for(i = 0; i < nr_channels; ++i) + { + uc = cio_read(cio, 1); /* Bi */ + channel_size[i] = (uc & 0x7f) + 1; + channel_sign[i] = (uc & 0x80)?1:0; + } + + for(j = 0; j < nr_entries; ++j) + { + for(i = 0; i < nr_channels; ++i) + { +/* Cji */ + *entries++ = cio_read(cio, channel_size[i]>>3); + } + } + + return OPJ_TRUE; +}/* jp2_read_pclr() */ + +/** + * Reads a palette 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 pointer that will hold the size of the bpc header + * @param p_bpc_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. + */ +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); + + 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; } - if (cio_tell(cio) - box.init_pos != box.length) { - opj_event_msg(cinfo, EVT_ERROR, "Error with BPCC Box\n"); - return false; + for(j = 0; j < nr_entries; ++j) { + for(i = 0; i < nr_channels; ++i) { + //*entries++ = cio_read(cio, channel_size[i]>>3); + opj_read_bytes(p_pclr_header_data, &l_value , channel_size[i]>>3); /* Cji */ + p_pclr_header_data += channel_size[i]>>3; + *entries = (OPJ_UINT32) l_value; + entries++; + } } - return true; + + return OPJ_TRUE; } -void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_jp2_box_t box; - box.init_pos = cio_tell(cio); - cio_skip(cio, 4); - cio_write(cio, JP2_JP2H, 4); /* JP2H */ +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; - jp2_write_ihdr(jp2, cio); + OPJ_ARG_NOT_USED(box); + OPJ_ARG_NOT_USED(jp2); - if (jp2->bpc == 255) { - jp2_write_bpcc(jp2, cio); - } - jp2_write_colr(jp2, cio); +/* Need nr_channels: */ + if(color->jp2_pclr == NULL) return OPJ_FALSE; - 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); -} +/* 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; -bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_jp2_box_t box; - int skip_len; + nr_channels = color->jp2_pclr->nr_channels; + cmap = (opj_jp2_cmap_comp_t*) + opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t)); - opj_common_ptr cinfo = jp2->cinfo; + 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); - 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 false; - } - cio_skip(cio, box.length - 8); - jp2_read_boxhdr(cinfo, cio, &box); - } - } while(JP2_JP2H != box.type); + } + color->jp2_pclr->cmap = cmap; - if (!jp2_read_ihdr(jp2, cio)) - return false; + return OPJ_TRUE; - if (jp2->bpc == 255) { - if (!jp2_read_bpcc(jp2, cio)) - return false; - } - if (!jp2_read_colr(jp2, cio)) - return false; +}/* jp2_read_cmap() */ - skip_len = box.init_pos + box.length - cio_tell(cio); - if (skip_len < 0) { - opj_event_msg(cinfo, EVT_ERROR, "Error with JP2H Box\n"); - return false; +/** + * 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); + + /* 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; } - cio_skip(cio, box.init_pos + box.length - cio_tell(cio)); - return true; -} + /* 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; + } -static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { - unsigned int i; - opj_jp2_box_t box; + nr_channels = jp2->color.jp2_pclr->nr_channels; + cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t)); - box.init_pos = cio_tell(cio); - cio_skip(cio, 4); - cio_write(cio, JP2_FTYP, 4); /* FTYP */ + 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; - cio_write(cio, jp2->brand, 4); /* BR */ - cio_write(cio, jp2->minversion, 4); /* MinV */ + opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */ + ++p_cmap_header_data; + cmap[i].mtyp = (OPJ_BYTE) l_value; - for (i = 0; i < jp2->numcl; i++) { - cio_write(cio, jp2->cl[i], 4); /* CL */ + opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */ + ++p_cmap_header_data; + cmap[i].pcol = (OPJ_BYTE) l_value; } - 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); + jp2->color.jp2_pclr->cmap = cmap; + + return OPJ_TRUE; } -static bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { - int i; - opj_jp2_box_t box; +static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color) +{ + opj_jp2_cdef_info_t *info; + int color_space; + unsigned short i, n, cn, typ, asoc, acn; - opj_common_ptr cinfo = jp2->cinfo; + color_space = image->color_space; + info = color->jp2_cdef->info; + n = color->jp2_cdef->n; - jp2_read_boxhdr(cinfo, cio, &box); + for(i = 0; i < n; ++i) + { +/* WATCH: acn = asoc - 1 ! */ + if((asoc = info[i].asoc) == 0) continue; - if (JP2_FTYP != box.type) { - opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n"); - return false; - } + cn = info[i].cn; typ = info[i].typ; acn = asoc - 1; - 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)); + if(cn != acn) + { + opj_image_comp_t saved; - for (i = 0; i < (int)jp2->numcl; i++) { - jp2->cl[i] = cio_read(cio, 4); /* CLi */ - } + 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)); - if (cio_tell(cio) - box.init_pos != box.length) { - opj_event_msg(cinfo, EVT_ERROR, "Error with FTYP Box\n"); - return false; - } + info[i].asoc = cn + 1; + info[acn].asoc = info[acn].cn + 1; + } + } + if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info); - return true; -} + opj_free(color->jp2_cdef); color->jp2_cdef = NULL; -static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index) { - unsigned int j2k_codestream_offset, j2k_codestream_length; - opj_jp2_box_t box; +}/* jp2_apply_cdef() */ - opj_j2k_t *j2k = jp2->j2k; +static opj_bool jp2_read_cdef(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_box_t *box, opj_jp2_color_t *color) +{ + opj_jp2_cdef_info_t *info; + unsigned short i, n; - box.init_pos = cio_tell(cio); - cio_skip(cio, 4); - cio_write(cio, JP2_JP2C, 4); /* JP2C */ + OPJ_ARG_NOT_USED(box); + OPJ_ARG_NOT_USED(jp2); - /* J2K encoding */ - j2k_codestream_offset = cio_tell(cio); - if(!j2k_encode(j2k, cio, image, index)) { +/* 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); + + /* 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; + + 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; + } + + cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t)); + + 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; +} + + +static opj_bool jp2_read_colr(opj_jp2_t *jp2, opj_cio_t *cio, + opj_jp2_box_t *box, opj_jp2_color_t *color) +{ + int skip_len; + opj_common_ptr cinfo; + +/* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour + * Specification boxes after the first.' +*/ + if(color->jp2_has_colr) return OPJ_FALSE; + + cinfo = jp2->cinfo; + + jp2->meth = cio_read(cio, 1); /* METH */ + jp2->precedence = cio_read(cio, 1); /* PRECEDENCE */ + jp2->approx = cio_read(cio, 1); /* APPROX */ + + if (jp2->meth == 1) + { + jp2->enumcs = cio_read(cio, 4); /* EnumCS */ + } + else + if (jp2->meth == 2) + { +/* skip PROFILE */ + skip_len = box->init_pos + box->length - cio_tell(cio); + if (skip_len < 0) + { + opj_event_msg(cinfo, EVT_ERROR, "Error with COLR box size\n"); + return OPJ_FALSE; + } + if(skip_len > 0) + { + unsigned char *start; + + start = cio_getbp(cio); + color->icc_profile_buf = (unsigned char*)opj_malloc(skip_len); + color->icc_profile_len = skip_len; + + cio_skip(cio, box->init_pos + box->length - cio_tell(cio)); + + memcpy(color->icc_profile_buf, start, skip_len); + } + } + + if (cio_tell(cio) - box->init_pos != box->length) + { + opj_event_msg(cinfo, EVT_ERROR, "Error with COLR Box\n"); + return OPJ_FALSE; + } + color->jp2_has_colr = 1; + + return OPJ_TRUE; +}/* jp2_read_colr() */ + +/** + * 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; +} + +opj_bool jp2_read_jp2h(opj_jp2_t *jp2, opj_cio_t *cio, opj_jp2_color_t *color) +{ + opj_jp2_box_t box; + int jp2h_end; + + opj_common_ptr cinfo = jp2->cinfo; + + 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) + { + 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) + { + 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) + { + 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); + + }/* while(cio_tell(cio) < box_end) */ + + cio_seek(cio, jp2h_end); + +/* Part 1, I.5.3.3 : 'must contain at least one' */ + return (color->jp2_has_colr == 1); + +}/* jp2_read_jp2h() */ + +opj_image_t* opj_jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio, + opj_codestream_info_t *cstr_info) +{ + opj_common_ptr cinfo; + opj_image_t *image = NULL; + opj_jp2_color_t color; + + if(!jp2 || !cio) + { + return NULL; + } + memset(&color, 0, sizeof(opj_jp2_color_t)); + cinfo = jp2->cinfo; + +/* JP2 decoding */ + if(!jp2_read_struct(jp2, cio, &color)) + { + free_color_data(&color); + opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n"); + return NULL; + } + +/* J2K decoding */ + image = j2k_decode(jp2->j2k, cio, cstr_info); + + if(!image) + { + free_color_data(&color); + opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n"); + return NULL; + } + +/* Set Image Color Space */ + if (jp2->enumcs == 16) + image->color_space = CLRSPC_SRGB; + else if (jp2->enumcs == 17) + image->color_space = CLRSPC_GRAY; + else if (jp2->enumcs == 18) + image->color_space = CLRSPC_SYCC; + else + image->color_space = CLRSPC_UNKNOWN; + + if(color.jp2_cdef) + { + jp2_apply_cdef(image, &color); + } + if(color.jp2_pclr) + { +/* Part 1, I.5.3.4: Either both or none : */ + if( !color.jp2_pclr->cmap) + jp2_free_pclr(&color); + else + jp2_apply_pclr(&color, image); + } + if(color.icc_profile_buf) + { + image->icc_profile_buf = color.icc_profile_buf; + color.icc_profile_buf = NULL; + image->icc_profile_len = color.icc_profile_len; + } + return image; + +}/* opj_jp2_decode() */ + + +void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) { + opj_jp2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio, 4); + cio_write(cio, JP2_JP2H, 4); /* JP2H */ + + jp2_write_ihdr(jp2, cio); + + if (jp2->bpc == 255) { + jp2_write_bpcc(jp2, cio); + } + jp2_write_colr(jp2, cio); + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { + unsigned int i; + opj_jp2_box_t box; + + box.init_pos = cio_tell(cio); + cio_skip(cio, 4); + cio_write(cio, JP2_FTYP, 4); /* FTYP */ + + cio_write(cio, jp2->brand, 4); /* BR */ + cio_write(cio, jp2->minversion, 4); /* MinV */ + + for (i = 0; i < jp2->numcl; i++) { + cio_write(cio, jp2->cl[i], 4); /* CL */ + } + + box.length = cio_tell(cio) - box.init_pos; + cio_seek(cio, box.init_pos); + cio_write(cio, box.length, 4); /* L */ + cio_seek(cio, box.init_pos + box.length); +} + +static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) { + int i; + opj_jp2_box_t box; + + opj_common_ptr cinfo = jp2->cinfo; + + 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; } @@ -433,7 +1580,7 @@ static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, ch return box.length; } -static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) { +static opj_bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) { opj_jp2_box_t box; opj_common_ptr cinfo = jp2->cinfo; @@ -449,7 +1596,7 @@ static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_code *j2k_codestream_offset = cio_tell(cio); *j2k_codestream_length = box.length - 8; - return true; + return OPJ_TRUE; } static void jp2_write_jp(opj_cio_t *cio) { @@ -466,7 +1613,7 @@ static void jp2_write_jp(opj_cio_t *cio) { cio_seek(cio, box.init_pos + box.length); } -static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) { +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; @@ -474,40 +1621,102 @@ static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) { jp2_read_boxhdr(cinfo, cio, &box); if (JP2_JP != box.type) { opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n"); - return false; + return OPJ_FALSE; } if (0x0d0a870a != cio_read(cio, 4)) { opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n"); - return false; + 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 false; + return OPJ_FALSE; } - return true; + return OPJ_TRUE; } -static bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio) { +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 false; + return OPJ_FALSE; if (!jp2_read_ftyp(jp2, cio)) - return false; - if (!jp2_read_jp2h(jp2, cio)) - return false; + 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 false; + return OPJ_FALSE; - return true; + return OPJ_TRUE; +} + + +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, offset_jp2c, cio); + + len = cio_tell( cio)-lenp; + cio_seek( cio, lenp); + cio_write( cio, len, 4); /* L */ + cio_seek( cio, lenp+len); + + return len; } +static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio) +{ + 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); +} + +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); +} + + /* ----------------------------------------------------------------------- */ /* JP2 decoder interface */ /* ----------------------------------------------------------------------- */ opj_jp2_t* jp2_create_decompress(opj_common_ptr cinfo) { - opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t)); + opj_jp2_t *jp2 = (opj_jp2_t*) opj_calloc(1, sizeof(opj_jp2_t)); if(jp2) { jp2->cinfo = cinfo; /* create the J2K codec */ @@ -541,31 +1750,15 @@ void jp2_setup_decoder(opj_jp2_t *jp2, opj_dparameters_t *parameters) { /* further JP2 initializations go here */ } -opj_image_t* jp2_decode(opj_jp2_t *jp2, opj_cio_t *cio) { - opj_common_ptr cinfo; - opj_image_t *image = NULL; - - if(!jp2 || !cio) { - return NULL; - } - - cinfo = jp2->cinfo; - - /* JP2 decoding */ - if(!jp2_read_struct(jp2, cio)) { - opj_event_msg(cinfo, EVT_ERROR, "Failed to decode jp2 structure\n"); - return NULL; - } - - /* J2K decoding */ - image = j2k_decode(jp2->j2k, cio); - if(!image) { - opj_event_msg(cinfo, EVT_ERROR, "Failed to decode J2K image\n"); - } +void jp2_setup_decoder_v2(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters) { + /* setup the J2K codec */ + j2k_setup_decoder_v2(jp2->j2k, parameters); + /* further JP2 initializations go here */ - return image; + jp2->color.jp2_has_colr = 0; } + /* ----------------------------------------------------------------------- */ /* JP2 encoder interface */ /* ----------------------------------------------------------------------- */ @@ -653,30 +1846,22 @@ void jp2_setup_encoder(opj_jp2_t *jp2, opj_cparameters_t *parameters, opj_image_ 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->meth = 1; + if (image->color_space == 1) + jp2->enumcs = 16; /* sRGB as defined by IEC 61966-2.1 */ + else if (image->color_space == 2) + jp2->enumcs = 17; /* greyscale */ + else if (image->color_space == 3) + jp2->enumcs = 18; /* YUV */ jp2->precedence = 0; /* PRECEDENCE */ jp2->approx = 0; /* APPROX */ - + + jp2->jpip_on = parameters->jpip_on; } -bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index) { +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, end_pos, pos_fidx, len_fidx; /* JP2 encoding */ @@ -687,14 +1872,731 @@ bool jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, char *index) /* 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); + + 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, cio_tell(cio), cio); + + end_pos = cio_tell( cio); + + cio_seek( cio, pos_iptr); + write_iptr( pos_fidx, len_fidx, cio); + cio_seek( cio, end_pos); + } - if(!jp2_write_jp2c(jp2, cio, image, index)) { - opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n"); - return false; + 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); + + /* write header */ + if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) { + return OPJ_FALSE; } - return true; + return j2k_end_decompress(jp2->j2k, cio, p_manager); } +/** + * Sets up the procedures to do on reading header after the codestream. + * Developpers wanting to extend the library can add their own writting 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,(void*)jp2_read_header_procedure ); + /* DEVELOPER CORNER, add your custom procedures */ +} + +/** + * 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); + 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;ijp2_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; +} + + +/** + * 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; +} + +/** + * 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 + ) +{ + 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; +} + + +/** + * 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_file_info_t * p_file_info, + 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_file_info, + 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. + */ +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 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,(void*)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); +} + +/** + * 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 opj_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) { + opj_free(jp2->color.jp2_cdef); + jp2->color.jp2_cdef = 00; + } + + if (jp2->color.jp2_pclr) { + 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_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_start_x, p_start_y, p_end_x, p_end_y, p_manager); +} + +/* ----------------------------------------------------------------------- */ +/* 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_t)); + + /* create the J2K codec */ + if (! p_is_decoder) { + jp2->j2k = j2k_create_compress_v2(); + } + else { + jp2->j2k = j2k_create_decompress_v2(); + } + + if (jp2->j2k == 00) { + jp2_destroy(jp2); + return 00; + } + + // 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; +}