summaryrefslogtreecommitdiff
path: root/third_party/libopenjpeg20/jp2.c
diff options
context:
space:
mode:
authorTom Sepez <tsepez@chromium.org>2015-06-18 17:05:27 -0700
committerTom Sepez <tsepez@chromium.org>2015-06-18 17:05:27 -0700
commite295819e5ded76e405b6d5800401cb5983b4ce10 (patch)
tree64f28bd7e305081576c5509cdef42126561467c4 /third_party/libopenjpeg20/jp2.c
parentaa23c864b84d99f23a82ee8da852e575db981c07 (diff)
downloadpdfium-e295819e5ded76e405b6d5800401cb5983b4ce10.tar.xz
Move libopenjpeg to third_party/
We get to delete a whole bunch of fx_foo.c files that did nothing but #include "foo.c" after defining _CRT_SECURE_NO_WARNINGS. Do this from the .gyp/.gn files instead. Also sort some "config"s in .gn file. R=thestig@chromium.org Committed: https://pdfium.googlesource.com/pdfium/+/c7a17bf9cdb0d646aa8b653e6ab2678a1837ed6a Review URL: https://codereview.chromium.org/1185373010.
Diffstat (limited to 'third_party/libopenjpeg20/jp2.c')
-rw-r--r--third_party/libopenjpeg20/jp2.c3000
1 files changed, 3000 insertions, 0 deletions
diff --git a/third_party/libopenjpeg20/jp2.c b/third_party/libopenjpeg20/jp2.c
new file mode 100644
index 0000000000..aafbe199d6
--- /dev/null
+++ b/third_party/libopenjpeg20/jp2.c
@@ -0,0 +1,3000 @@
+/*
+ * 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
+
+/** @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, fale 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);
+
+/**
+ * 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 );
+
+OPJ_BOOL opj_jp2_skip_jp2c( opj_jp2_t *jp2,
+ opj_stream_private_t *cio,
+ 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 reconized.
+*/
+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 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 color Collector for profile, cdef and pclr data
+@param image
+*/
+static void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color);
+
+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, fale 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 void opj_jp2_setup_end_header_writing (opj_jp2_t *jp2);
+
+/**
+ * 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 void opj_jp2_setup_end_header_reading (opj_jp2_t *jp2);
+
+/**
+ * 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 );
+
+/**
+ * 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 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 reconized, 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 lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+static void opj_jp2_setup_encoding_validation (opj_jp2_t *jp2);
+
+/**
+ * Sets up the procedures to do on writing header. Developpers wanting to extend the library can add their own writing procedures.
+ */
+static void opj_jp2_setup_header_writing (opj_jp2_t *jp2);
+
+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 );
+
+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}
+};
+
+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 reconized, 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 lauch to make sure the codec parameters
+ * are valid. Developpers wanting to extend the library can add their own validation procedures.
+ */
+static void opj_jp2_setup_decoding_validation (opj_jp2_t *jp2);
+
+/**
+ * Sets up the procedures to do on reading header.
+ * Developpers wanting to extend the library can add their own writing procedures.
+ */
+static void opj_jp2_setup_header_reading (opj_jp2_t *jp2);
+
+/* ----------------------------------------------------------------------- */
+ 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);
+ box->length = (OPJ_UINT32)bleft;
+ assert( (OPJ_OFF_T)box->length == bleft );
+ 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
+
+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 (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;
+
+ /* allocate memory for components */
+ 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;
+
+ return OPJ_TRUE;
+}
+
+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;
+}
+
+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 = 8 + jp2->numcomps;
+ OPJ_BYTE * l_bpcc_data,* l_current_bpcc_ptr;
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(p_nb_bytes_written != 00);
+
+ 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;
+}
+
+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;
+}
+
+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;
+}
+
+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 > 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_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_UINT16 pcol = cmap[i].pcol;
+ assert(cmap[i].mtyp == 0 || cmap[i].mtyp == 1);
+ 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] && cmap[i].mtyp == 1) {
+ opj_event_msg(p_manager, EVT_ERROR, "Component %d is mapped twice.\n", pcol);
+ is_sane = OPJ_FALSE;
+ }
+ else if (cmap[i].mtyp == 0 && cmap[i].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
+ 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;
+ }
+ }
+ opj_free(pcol_usage);
+ if (!is_sane) {
+ return OPJ_FALSE;
+ }
+ }
+
+ return OPJ_TRUE;
+}
+
+/* file9.jp2 */
+void opj_jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
+{
+ opj_image_comp_t *old_comps, *new_comps;
+ OPJ_BYTE *channel_size, *channel_sign;
+ OPJ_UINT32 *entries;
+ opj_jp2_cmap_comp_t *cmap;
+ OPJ_INT32 *src, *dst;
+ OPJ_UINT32 j, max;
+ OPJ_UINT16 i, nr_channels, cmp, pcol;
+ OPJ_INT32 k, top_k;
+
+ channel_size = color->jp2_pclr->channel_size;
+ channel_sign = color->jp2_pclr->channel_sign;
+ entries = color->jp2_pclr->entries;
+ cmap = color->jp2_pclr->cmap;
+ nr_channels = color->jp2_pclr->nr_channels;
+
+ old_comps = image->comps;
+ new_comps = (opj_image_comp_t*)
+ opj_malloc(nr_channels * sizeof(opj_image_comp_t));
+ if (!new_comps) {
+ /* FIXME no error code for opj_jp2_apply_pclr */
+ /* FIXME event manager error callback */
+ return;
+ }
+ 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 );
+ new_comps[pcol] = old_comps[cmp];
+ }
+
+ /* Palette mapping: */
+ new_comps[i].data = (OPJ_INT32*)
+ opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(OPJ_INT32));
+ if (!new_comps[i].data) {
+ opj_free(new_comps);
+ new_comps = NULL;
+ /* FIXME no error code for opj_jp2_apply_pclr */
+ /* FIXME event manager error callback */
+ return;
+ }
+ 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;
+ assert( src );
+ max = new_comps[pcol].w * new_comps[pcol].h;
+
+ /* Direct use: */
+ if(cmap[i].mtyp == 0) {
+ assert( cmp == 0 );
+ dst = new_comps[i].data;
+ assert( dst );
+ for(j = 0; j < max; ++j) {
+ dst[j] = src[j];
+ }
+ }
+ else {
+ assert( i == pcol );
+ dst = new_comps[pcol].data;
+ assert( dst );
+ 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_free(old_comps[i].data);
+ }
+
+ opj_free(old_comps);
+ image->comps = new_comps;
+ image->numcomps = nr_channels;
+
+ opj_jp2_free_pclr(color);
+
+}/* apply_pclr() */
+
+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((size_t)nr_channels * nr_entries * sizeof(OPJ_UINT32));
+ 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;
+}
+
+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(p_cmap_header_data, &l_value, 2); /* CMP^i */
+ p_cmap_header_data +=2;
+ cmap[i].cmp = (OPJ_UINT16) l_value;
+
+ opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
+ ++p_cmap_header_data;
+ cmap[i].mtyp = (OPJ_BYTE) l_value;
+
+ opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
+ ++p_cmap_header_data;
+ cmap[i].pcol = (OPJ_BYTE) l_value;
+ }
+
+ jp2->color.jp2_pclr->cmap = cmap;
+
+ return OPJ_TRUE;
+}
+
+void opj_jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
+{
+ 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)
+ {
+ fprintf(stderr, "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 )
+ {
+ fprintf(stderr, "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() */
+
+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;
+}
+
+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) {
+ /* 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 */
+
+ 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->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
+ 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
+ opj_jp2_apply_pclr(p_image, &(jp2->color));
+ }
+
+ /* Apply the color space if needed */
+ if(jp2->color.jp2_cdef) {
+ opj_jp2_apply_cdef(p_image, &(jp2->color));
+ }
+
+ if(jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = jp2->color.icc_profile_len;
+ jp2->color.icc_profile_buf = NULL;
+ }
+ }
+
+ return OPJ_TRUE;
+}
+
+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;
+}
+
+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 = 16 + 4 * jp2->numcl;
+ 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_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;
+}
+
+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;
+}
+
+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);
+
+ /* 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->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
+}
+
+/* ----------------------------------------------------------------------- */
+/* 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){
+ jp2->cl = NULL;
+ 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) {
+ jp2->comps = NULL;
+ 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 */
+ opj_jp2_setup_end_header_reading(jp2);
+
+ /* 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 */
+ opj_jp2_setup_end_header_writing(jp2);
+
+ 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);
+}
+
+void opj_jp2_setup_end_header_writing (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+#ifdef USE_JPIP
+ if( jp2->jpip_on )
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_iptr );
+#endif
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2c );
+ /* DEVELOPER CORNER, add your custom procedures */
+#ifdef USE_JPIP
+ if( jp2->jpip_on )
+ {
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_cidx );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_write_fidx );
+ }
+#endif
+}
+
+void opj_jp2_setup_end_header_reading (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
+ /* DEVELOPER CORNER, add your custom procedures */
+}
+
+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);
+
+ /* 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;
+}
+
+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;
+ 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_data_size = box.length - l_nb_bytes_read;
+
+ if (l_current_handler != 00) {
+ 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) {
+ 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;
+}
+
+/**
+ * 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 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 */
+ opj_jp2_setup_encoding_validation (jp2);
+
+ /* validation of the parameters codec */
+ if (! opj_jp2_exec(jp2,jp2->m_validation_list,stream,p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* customization of the encoding */
+ opj_jp2_setup_header_writing(jp2);
+
+ /* 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);
+}
+
+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;
+}
+
+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 reconized.
+*/
+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;
+
+ return OPJ_TRUE;
+}
+
+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 */
+ opj_jp2_setup_decoding_validation (jp2);
+
+ /* customization of the encoding */
+ opj_jp2_setup_header_reading(jp2);
+
+ /* 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;
+ }
+
+ return opj_j2k_read_header( p_stream,
+ jp2->j2k,
+ p_image,
+ p_manager);
+}
+
+void opj_jp2_setup_encoding_validation (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)opj_jp2_default_validation);
+ /* DEVELOPER CORNER, add your custom validation procedure */
+}
+
+void opj_jp2_setup_decoding_validation (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+ /* DEVELOPER CORNER, add your custom validation procedure */
+}
+
+void opj_jp2_setup_header_writing (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_ftyp );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_write_jp2h );
+ if( jp2->jpip_on )
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jpip_skip_iptr );
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_skip_jp2c );
+
+ /* DEVELOPER CORNER, insert your custom procedures */
+
+}
+
+void opj_jp2_setup_header_reading (opj_jp2_t *jp2)
+{
+ /* preconditions */
+ assert(jp2 != 00);
+
+ opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)opj_jp2_read_header_procedure );
+ /* DEVELOPER CORNER, add your custom procedures */
+}
+
+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)
+{
+ if (jp2) {
+ /* destroy the J2K codec */
+ opj_j2k_destroy(jp2->j2k);
+ jp2->j2k = 00;
+
+ if (jp2->comps) {
+ opj_free(jp2->comps);
+ jp2->comps = 00;
+ }
+
+ if (jp2->cl) {
+ opj_free(jp2->cl);
+ jp2->cl = 00;
+ }
+
+ if (jp2->color.icc_profile_buf) {
+ opj_free(jp2->color.icc_profile_buf);
+ jp2->color.icc_profile_buf = 00;
+ }
+
+ if (jp2->color.jp2_cdef) {
+ if (jp2->color.jp2_cdef->info) {
+ opj_free(jp2->color.jp2_cdef->info);
+ jp2->color.jp2_cdef->info = NULL;
+ }
+
+ opj_free(jp2->color.jp2_cdef);
+ jp2->color.jp2_cdef = 00;
+ }
+
+ if (jp2->color.jp2_pclr) {
+ if (jp2->color.jp2_pclr->cmap) {
+ opj_free(jp2->color.jp2_pclr->cmap);
+ jp2->color.jp2_pclr->cmap = NULL;
+ }
+ if (jp2->color.jp2_pclr->channel_sign) {
+ opj_free(jp2->color.jp2_pclr->channel_sign);
+ jp2->color.jp2_pclr->channel_sign = NULL;
+ }
+ if (jp2->color.jp2_pclr->channel_size) {
+ opj_free(jp2->color.jp2_pclr->channel_size);
+ jp2->color.jp2_pclr->channel_size = NULL;
+ }
+ if (jp2->color.jp2_pclr->entries) {
+ opj_free(jp2->color.jp2_pclr->entries);
+ jp2->color.jp2_pclr->entries = NULL;
+ }
+
+ opj_free(jp2->color.jp2_pclr);
+ jp2->color.jp2_pclr = 00;
+ }
+
+ if (jp2->m_validation_list) {
+ opj_procedure_list_destroy(jp2->m_validation_list);
+ jp2->m_validation_list = 00;
+ }
+
+ if (jp2->m_procedure_list) {
+ opj_procedure_list_destroy(jp2->m_procedure_list);
+ jp2->m_procedure_list = 00;
+ }
+
+ opj_free(jp2);
+ }
+}
+
+OPJ_BOOL opj_jp2_set_decode_area( opj_jp2_t *p_jp2,
+ opj_image_t* p_image,
+ OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
+ OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
+ opj_event_mgr_t * p_manager
+ )
+{
+ return opj_j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
+}
+
+OPJ_BOOL opj_jp2_get_tile( opj_jp2_t *p_jp2,
+ opj_stream_private_t *p_stream,
+ opj_image_t* p_image,
+ opj_event_mgr_t * p_manager,
+ OPJ_UINT32 tile_index
+ )
+{
+ if (!p_image)
+ return OPJ_FALSE;
+
+ opj_event_msg(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
+
+ if (! opj_j2k_get_tile(p_jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
+ return OPJ_FALSE;
+ }
+
+ if (!opj_jp2_check_color(p_image, &(p_jp2->color), p_manager)) {
+ return OPJ_FALSE;
+ }
+
+ /* Set Image Color Space */
+ if (p_jp2->enumcs == 16)
+ p_image->color_space = OPJ_CLRSPC_SRGB;
+ else if (p_jp2->enumcs == 17)
+ p_image->color_space = OPJ_CLRSPC_GRAY;
+ else if (p_jp2->enumcs == 18)
+ p_image->color_space = OPJ_CLRSPC_SYCC;
+ else
+ p_image->color_space = OPJ_CLRSPC_UNKNOWN;
+
+ if(p_jp2->color.jp2_pclr) {
+ /* Part 1, I.5.3.4: Either both or none : */
+ if( !p_jp2->color.jp2_pclr->cmap)
+ opj_jp2_free_pclr(&(p_jp2->color));
+ else
+ opj_jp2_apply_pclr(p_image, &(p_jp2->color));
+ }
+
+ /* Apply the color space if needed */
+ if(p_jp2->color.jp2_cdef) {
+ opj_jp2_apply_cdef(p_image, &(p_jp2->color));
+ }
+
+ if(p_jp2->color.icc_profile_buf) {
+ p_image->icc_profile_buf = p_jp2->color.icc_profile_buf;
+ p_image->icc_profile_len = p_jp2->color.icc_profile_len;
+ p_jp2->color.icc_profile_buf = NULL;
+ }
+
+ return OPJ_TRUE;
+}
+
+/* ----------------------------------------------------------------------- */
+/* JP2 encoder interface */
+/* ----------------------------------------------------------------------- */
+
+opj_jp2_t* opj_jp2_create(OPJ_BOOL p_is_decoder)
+{
+ opj_jp2_t *jp2 = (opj_jp2_t*)opj_calloc(1,sizeof(opj_jp2_t));
+ if (jp2) {
+
+ /* create the J2K codec */
+ if (! p_is_decoder) {
+ jp2->j2k = opj_j2k_create_compress();
+ }
+ else {
+ jp2->j2k = opj_j2k_create_decompress();
+ }
+
+ if (jp2->j2k == 00) {
+ opj_jp2_destroy(jp2);
+ return 00;
+ }
+
+ /* Color structure */
+ jp2->color.icc_profile_buf = NULL;
+ jp2->color.icc_profile_len = 0;
+ jp2->color.jp2_cdef = NULL;
+ jp2->color.jp2_pclr = NULL;
+ jp2->color.jp2_has_colr = 0;
+
+ /* validation list creation */
+ jp2->m_validation_list = opj_procedure_list_create();
+ if (! jp2->m_validation_list) {
+ opj_jp2_destroy(jp2);
+ return 00;
+ }
+
+ /* execution list creation */
+ jp2->m_procedure_list = opj_procedure_list_create();
+ if (! jp2->m_procedure_list) {
+ opj_jp2_destroy(jp2);
+ return 00;
+ }
+ }
+
+ return jp2;
+}
+
+void jp2_dump(opj_jp2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
+{
+ /* preconditions */
+ assert(p_jp2 != 00);
+
+ j2k_dump(p_jp2->j2k,
+ flag,
+ out_stream);
+}
+
+opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_t* p_jp2)
+{
+ return j2k_get_cstr_index(p_jp2->j2k);
+}
+
+opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_t* p_jp2)
+{
+ return j2k_get_cstr_info(p_jp2->j2k);
+}
+
+OPJ_BOOL opj_jp2_set_decoded_resolution_factor(opj_jp2_t *p_jp2,
+ OPJ_UINT32 res_factor,
+ opj_event_mgr_t * p_manager)
+{
+ return opj_j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
+}
+
+/* JPIP specific */
+
+#ifdef USE_JPIP
+static OPJ_BOOL opj_jpip_write_iptr(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 [24];
+
+ /* 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, 24, 4); /* size of iptr */
+ opj_write_bytes(l_data_header + 4,JPIP_IPTR,4); /* IPTR */
+#if 0
+ opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
+ opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
+#else
+ opj_write_double(l_data_header + 4 + 4, 0); /* offset */
+ opj_write_double(l_data_header + 8 + 8, 0); /* length */
+#endif
+
+ if (! opj_stream_seek(cio,jp2->jpip_iptr_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,24,p_manager) != 24) {
+ 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_jpip_write_fidx(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 [24];
+
+ /* preconditions */
+ assert(jp2 != 00);
+ assert(cio != 00);
+ assert(p_manager != 00);
+ assert(opj_stream_has_seek(cio));
+
+ opj_write_bytes(l_data_header, 24, 4); /* size of iptr */
+ opj_write_bytes(l_data_header + 4,JPIP_FIDX,4); /* IPTR */
+ opj_write_double(l_data_header + 4 + 4, 0); /* offset */
+ opj_write_double(l_data_header + 8 + 8, 0); /* length */
+
+ if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ j2k_codestream_exit = opj_stream_tell(cio);
+ 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_jpip_write_cidx(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 [24];
+
+ /* 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, 24, 4); /* size of iptr */
+ opj_write_bytes(l_data_header + 4,JPIP_CIDX,4); /* IPTR */
+#if 0
+ opj_write_bytes(l_data_header + 4 + 4, 0, 8); /* offset */
+ opj_write_bytes(l_data_header + 8 + 8, 0, 8); /* length */
+#else
+ opj_write_double(l_data_header + 4 + 4, 0); /* offset */
+ opj_write_double(l_data_header + 8 + 8, 0); /* length */
+#endif
+
+ 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;
+ }
+
+ if (opj_stream_write_data(cio,l_data_header,24,p_manager) != 24) {
+ opj_event_msg(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
+ return OPJ_FALSE;
+ }
+
+ j2k_codestream_exit = opj_stream_tell(cio);
+ 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;
+}
+
+#if 0
+static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ OPJ_BYTE l_data_header [8];
+ OPJ_OFF_T len, lenp;
+
+ lenp = opj_stream_tell(cio);
+ opj_stream_skip(cio, 4, p_manager); /* L [at the end] */
+ opj_write_bytes(l_data_header,JPIP_PRXY,4); /* IPTR */
+ opj_stream_write_data(cio,l_data_header,4,p_manager);
+
+ opj_write_bytes( l_data_header, offset_jp2c, 8); /* OOFF */
+ opj_stream_write_data(cio,l_data_header,8,p_manager);
+ opj_write_bytes( l_data_header, length_jp2c, 4); /* OBH part 1 */
+ opj_write_bytes( l_data_header+4, JP2_JP2C, 4); /* OBH part 2 */
+ opj_stream_write_data(cio,l_data_header,8,p_manager);
+
+ opj_write_bytes( l_data_header, 1, 1);/* NI */
+ opj_stream_write_data(cio,l_data_header,1,p_manager);
+
+ opj_write_bytes( l_data_header, offset_idx, 8); /* IOFF */
+ opj_stream_write_data(cio,l_data_header,8,p_manager);
+ opj_write_bytes( l_data_header, length_idx, 4); /* IBH part 1 */
+ opj_write_bytes( l_data_header+4, JPIP_CIDX, 4); /* IBH part 2 */
+ opj_stream_write_data(cio,l_data_header,8,p_manager);
+
+ len = opj_stream_tell(cio)-lenp;
+ opj_stream_skip(cio, lenp, p_manager);
+ opj_write_bytes(l_data_header,len,4);/* L */
+ opj_stream_write_data(cio,l_data_header,4,p_manager);
+ opj_stream_seek(cio, lenp+len,p_manager);
+}
+#endif
+
+
+#if 0
+static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_stream_private_t *cio,
+ opj_event_mgr_t * p_manager )
+{
+ OPJ_BYTE l_data_header [4];
+ OPJ_OFF_T len, lenp;
+
+ lenp = opj_stream_tell(cio);
+ opj_stream_skip(cio, 4, p_manager);
+ opj_write_bytes(l_data_header,JPIP_FIDX,4); /* FIDX */
+ opj_stream_write_data(cio,l_data_header,4,p_manager);
+
+ write_prxy( offset_jp2c, length_jp2c, offset_idx, length_idx, cio,p_manager);
+
+ len = opj_stream_tell(cio)-lenp;
+ opj_stream_skip(cio, lenp, p_manager);
+ opj_write_bytes(l_data_header,len,4);/* L */
+ opj_stream_write_data(cio,l_data_header,4,p_manager);
+ opj_stream_seek(cio, lenp+len,p_manager);
+
+ return len;
+}
+#endif
+#endif /* USE_JPIP */