path: root/tests/openjpeg/libopenjpeg/jp2.c

/*
 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2007, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * 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 */
/*@{*/

/** @name Local static functions */
/*@{*/

/**
Read box headers
@param cinfo Codec context info
@param cio Input stream
@param box
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box);
/*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
/**
Read the IHDR box - Image Header box
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
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 void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Write the FTYP box - File type box
@param jp2 JP2 handle
@param cio Output buffer stream
*/
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
/**
Read the FTYP box - File type box
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static 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, opj_codestream_info_t *cstr_info);
static bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset);
static void jp2_write_jp(opj_cio_t *cio);
/**
Read the JP box - JPEG 2000 signature
@param jp2 JP2 handle
@param cio Input buffer stream
@return Returns true if successful, returns false otherwise
*/
static bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio);
/**
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 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 bool jp2_read_pclr(opj_jp2_t *jp2, opj_cio_t *cio,
    opj_jp2_box_t *box, opj_jp2_color_t *color);
/**
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 bool jp2_read_cmap(opj_jp2_t *jp2, opj_cio_t *cio,
    opj_jp2_box_t *box, opj_jp2_color_t *color);
/**
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_colr(opj_jp2_t *jp2, opj_cio_t *cio,
    opj_jp2_box_t *box, opj_jp2_color_t *color);
/*@}*/

/*@}*/

/* ----------------------------------------------------------------------- */

static 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;
		}
		box->length = cio_read(cio, 4);
		if (box->length == 0) 
			box->length = cio_numbytesleft(cio) + 12;
	}
	else if (box