jas_image.h

DIGITAL IMAGERY is pervasive in our world today. Consequently, standards for the efficient represen

/*
 * Copyright (c) 1999-2000 Image Power, Inc. and the University of
 *   British Columbia.
 * Copyright (c) 2001-2003 Michael David Adams.
 * All rights reserved.
 */

/* __START_OF_JASPER_LICENSE__
 * 
 * JasPer Software License
 * 
 * IMAGE POWER JPEG-2000 PUBLIC LICENSE
 * ************************************
 * 
 * GRANT:
 * 
 * Permission is hereby granted, free of charge, to any person (the "User")
 * obtaining a copy of this software and associated documentation, to deal
 * in the JasPer Software without restriction, including without limitation
 * the right to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the JasPer Software (in source and binary forms),
 * and to permit persons to whom the JasPer Software is furnished to do so,
 * provided further that the License Conditions below are met.
 * 
 * License Conditions
 * ******************
 * 
 * A.  Redistributions of source code must retain the above copyright notice,
 * and this list of conditions, and the following disclaimer.
 * 
 * B.  Redistributions in binary form must reproduce the above copyright
 * notice, and this list of conditions, and the following disclaimer in
 * the documentation and/or other materials provided with the distribution.
 * 
 * C.  Neither the name of Image Power, Inc. nor any other contributor
 * (including, but not limited to, the University of British Columbia and
 * Michael David Adams) may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * 
 * D.  User agrees that it shall not commence any action against Image Power,
 * Inc., the University of British Columbia, Michael David Adams, or any
 * other contributors (collectively "Licensors") for infringement of any
 * intellectual property rights ("IPR") held by the User in respect of any
 * technology that User owns or has a right to license or sublicense and
 * which is an element required in order to claim compliance with ISO/IEC
 * 15444-1 (i.e., JPEG-2000 Part 1).  "IPR" means all intellectual property
 * rights worldwide arising under statutory or common law, and whether
 * or not perfected, including, without limitation, all (i) patents and
 * patent applications owned or licensable by User; (ii) rights associated
 * with works of authorship including copyrights, copyright applications,
 * copyright registrations, mask work rights, mask work applications,
 * mask work registrations; (iii) rights relating to the protection of
 * trade secrets and confidential information; (iv) any right analogous
 * to those set forth in subsections (i), (ii), or (iii) and any other
 * proprietary rights relating to intangible property (other than trademark,
 * trade dress, or service mark rights); and (v) divisions, continuations,
 * renewals, reissues and extensions of the foregoing (as and to the extent
 * applicable) now existing, hereafter filed, issued or acquired.
 * 
 * E.  If User commences an infringement action against any Licensor(s) then
 * such Licensor(s) shall have the right to terminate User's license and
 * all sublicenses that have been granted hereunder by User to other parties.
 * 
 * F.  This software is for use only in hardware or software products that
 * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1).  No license
 * or right to this Software is granted for products that do not comply
 * with ISO/IEC 15444-1.  The JPEG-2000 Part 1 standard can be purchased
 * from the ISO.
 * 
 * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
 * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
 * THIS DISCLAIMER.  THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND
 * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY
 * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
 * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,
 * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING.  THOSE INTENDING
 * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE
 * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING
 * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
 * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE
 * IS WITH THE USER.  SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE
 * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY
 * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY
 * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,
 * REPAIR OR CORRECTION.  UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,
 * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE
 * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,
 * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE
 * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO
 * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
 * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,
 * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
 * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
 * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY
 * OF SUCH DAMAGES.  THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT
 * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR
 * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING
 * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,
 * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT
 * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
 * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY
 * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE
 * ("HIGH RISK ACTIVITIES").  LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS
 * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.  USER WILL NOT
 * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING
 * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS
 * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE
 * NOTICE SPECIFIED IN THIS SECTION.
 * 
 * __END_OF_JASPER_LICENSE__
 */

/*
 * Image Class
 *
 * $Id$
 */

#ifndef JAS_IMAGE_H
#define JAS_IMAGE_H

/******************************************************************************\
* Includes.
\******************************************************************************/

#include <jasper/jas_config.h>
#include <jasper/jas_stream.h>
#include <jasper/jas_seq.h>
#include <jasper/jas_cm.h>
#include <stdio.h>

#ifdef __cplusplus
extern "C" {
#endif

/******************************************************************************\
* Constants.
\******************************************************************************/

/*
 * Miscellaneous constants.
 */

/* The threshold at which image data is no longer stored in memory. */
#define JAS_IMAGE_INMEMTHRESH	(16 * 1024 * 1024)

/*
 * Component types
 */

#define	JAS_IMAGE_CT_UNKNOWN	0x10000
#define	JAS_IMAGE_CT_COLOR(n)	((n) & 0x7fff)
#define	JAS_IMAGE_CT_OPACITY	0x08000

#define	JAS_IMAGE_CT_RGB_R	0
#define	JAS_IMAGE_CT_RGB_G	1
#define	JAS_IMAGE_CT_RGB_B	2

#define	JAS_IMAGE_CT_YCBCR_Y	0
#define	JAS_IMAGE_CT_YCBCR_CB	1
#define	JAS_IMAGE_CT_YCBCR_CR	2

#define	JAS_IMAGE_CT_GRAY_Y	0

/******************************************************************************\
* Simple types.
\******************************************************************************/

/* Image coordinate. */
typedef int_fast32_t jas_image_coord_t;

/* Color space (e.g., RGB, YCbCr). */
typedef int_fast16_t jas_image_colorspc_t;

/* Component type (e.g., color, opacity). */
typedef int_fast32_t jas_image_cmpttype_t;

/* Component sample data format (e.g., real/integer, signedness, precision). */
typedef int_fast16_t jas_image_smpltype_t;

/******************************************************************************\
* Image class and supporting classes.
\******************************************************************************/

/* Image component class. */

typedef struct {

	jas_image_coord_t tlx_;
	/* The x-coordinate of the top-left corner of the component. */

	jas_image_coord_t tly_;
	/* The y-coordinate of the top-left corner of the component. */

	jas_image_coord_t hstep_;
	/* The horizontal sampling period in units of the reference grid. */

	jas_image_coord_t vstep_;
	/* The vertical sampling period in units of the reference grid. */

	jas_image_coord_t width_;
	/* The component width in samples. */

	jas_image_coord_t height_;
	/* The component height in samples. */

#ifdef FIX_ME
	int smpltype_;
#else
	int prec_;
	/* The precision of the sample data (i.e., the number of bits per
	sample).  If the samples are signed values, this quantity
	includes the sign bit. */

	int sgnd_;
	/* The signedness of the sample data. */
#endif

	jas_stream_t *stream_;
	/* The stream containing the component data. */

	int cps_;
	/* The number of characters per sample in the stream. */

	jas_image_cmpttype_t type_;
	/* The type of component (e.g., opacity, red, green, blue, luma). */

} jas_image_cmpt_t;

/* Image class. */

typedef struct {

	jas_image_coord_t tlx_;
	/* The x-coordinate of the top-left corner of the image bounding box. */

	jas_image_coord_t tly_;
	/* The y-coordinate of the top-left corner of the image bounding box. */

	jas_image_coord_t brx_;
	/* The x-coordinate of the bottom-right corner of the image bounding
	  box (plus one). */

	jas_image_coord_t bry_;
	/* The y-coordinate of the bottom-right corner of the image bounding
	  box (plus one). */

	int numcmpts_;
	/* The number of components. */

	int maxcmpts_;
	/* The maximum number of components that this image can have (i.e., the
	  allocated size of the components array). */

	jas_image_cmpt_t **cmpts_;
	/* Per-component information. */

	jas_clrspc_t clrspc_;

	jas_cmprof_t *cmprof_;

	bool inmem_;

} jas_image_t;

/* Component parameters class. */
/* This data type exists solely/mainly for the purposes of the
  jas_image_create function. */

typedef struct {

	jas_image_coord_t tlx;
	/* The x-coordinate of the top-left corner of the component. */

	jas_image_coord_t tly;
	/* The y-coordinate of the top-left corner of the component. */

	jas_image_coord_t hstep;
	/* The horizontal sampling period in units of the reference grid. */

	jas_image_coord_t vstep;
	/* The vertical sampling period in units of the reference grid. */

	jas_image_coord_t width;
	/* The width of the component in samples. */

	jas_image_coord_t height;
	/* The height of the component in samples. */

#ifdef FIX_ME
	int smpltype;
#else
	int prec;
	/* The precision of the component sample data. */

	int sgnd;
	/* The signedness of the component sample data. */
#endif

} jas_image_cmptparm_t;

/******************************************************************************\
* File format related classes.
\******************************************************************************/

#define	JAS_IMAGE_MAXFMTS	32
/* The maximum number of image data formats supported. */