Current File : //proc/self/root/usr/include/jasper/jas_image.h
/*
* 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 License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __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. */
/* Image format-dependent operations. */
typedef struct {
jas_image_t *(*decode)(jas_stream_t *in, char *opts);
/* Decode image data from a stream. */
int (*encode)(jas_image_t *image, jas_stream_t *out, char *opts);
/* Encode image data to a stream. */
int (*validate)(jas_stream_t *in);
/* Determine if stream data is in a particular format. */
} jas_image_fmtops_t;
/* Image format information. */
typedef struct {
int id;
/* The ID for this format. */
char *name;
/* The name by which this format is identified. */
char *ext;
/* The file name extension associated with this format. */
char *desc;
/* A brief description of the format. */
jas_image_fmtops_t ops;
/* The operations for this format. */
} jas_image_fmtinfo_t;
/******************************************************************************\
* Image operations.
\******************************************************************************/
/* Create an image. */
jas_image_t *jas_image_create(int numcmpts,
jas_image_cmptparm_t *cmptparms, jas_clrspc_t clrspc);
/* Create an "empty" image. */
jas_image_t *jas_image_create0(void);
/* Clone an image. */
jas_image_t *jas_image_copy(jas_image_t *image);
/* Deallocate any resources associated with an image. */
void jas_image_destroy(jas_image_t *image);
/* Get the width of the image in units of the image reference grid. */
#define jas_image_width(image) \
((image)->brx_ - (image)->tlx_)
/* Get the height of the image in units of the image reference grid. */
#define jas_image_height(image) \
((image)->bry_ - (image)->tly_)
/* Get the x-coordinate of the top-left corner of the image bounding box
on the reference grid. */
#define jas_image_tlx(image) \
((image)->tlx_)
/* Get the y-coordinate of the top-left corner of the image bounding box
on the reference grid. */
#define jas_image_tly(image) \
((image)->tly_)
/* Get the x-coordinate of the bottom-right corner of the image bounding box
on the reference grid (plus one). */
#define jas_image_brx(image) \
((image)->brx_)
/* Get the y-coordinate of the bottom-right corner of the image bounding box
on the reference grid (plus one). */
#define jas_image_bry(image) \
((image)->bry_)
/* Get the number of image components. */
#define jas_image_numcmpts(image) \
((image)->numcmpts_)
/* Get the color model used by the image. */
#define jas_image_clrspc(image) \
((image)->clrspc_)
/* Set the color model for an image. */
#define jas_image_setclrspc(image, clrspc) \
((image)->clrspc_ = (clrspc))
#define jas_image_cmpttype(image, cmptno) \
((image)->cmpts_[(cmptno)]->type_)
#define jas_image_setcmpttype(image, cmptno, type) \
((image)->cmpts_[(cmptno)]->type_ = (type))
/* Get the width of a component. */
#define jas_image_cmptwidth(image, cmptno) \
((image)->cmpts_[cmptno]->width_)
/* Get the height of a component. */
#define jas_image_cmptheight(image, cmptno) \
((image)->cmpts_[cmptno]->height_)
/* Get the signedness of the sample data for a component. */
#define jas_image_cmptsgnd(image, cmptno) \
((image)->cmpts_[cmptno]->sgnd_)
/* Get the precision of the sample data for a component. */
#define jas_image_cmptprec(image, cmptno) \
((image)->cmpts_[cmptno]->prec_)
/* Get the horizontal subsampling factor for a component. */
#define jas_image_cmpthstep(image, cmptno) \
((image)->cmpts_[cmptno]->hstep_)
/* Get the vertical subsampling factor for a component. */
#define jas_image_cmptvstep(image, cmptno) \
((image)->cmpts_[cmptno]->vstep_)
/* Get the x-coordinate of the top-left corner of a component. */
#define jas_image_cmpttlx(image, cmptno) \
((image)->cmpts_[cmptno]->tlx_)
/* Get the y-coordinate of the top-left corner of a component. */
#define jas_image_cmpttly(image, cmptno) \
((image)->cmpts_[cmptno]->tly_)
/* Get the x-coordinate of the bottom-right corner of a component
(plus "one"). */
#define jas_image_cmptbrx(image, cmptno) \
((image)->cmpts_[cmptno]->tlx_ + (image)->cmpts_[cmptno]->width_ * \
(image)->cmpts_[cmptno]->hstep_)
/* Get the y-coordinate of the bottom-right corner of a component
(plus "one"). */
#define jas_image_cmptbry(image, cmptno) \
((image)->cmpts_[cmptno]->tly_ + (image)->cmpts_[cmptno]->height_ * \
(image)->cmpts_[cmptno]->vstep_)
/* Get the raw size of an image (i.e., the nominal size of the image without
any compression. */
uint_fast32_t jas_image_rawsize(jas_image_t *image);
/* Create an image from a stream in some specified format. */
jas_image_t *jas_image_decode(jas_stream_t *in, int fmt, char *optstr);
/* Write an image to a stream in a specified format. */
int jas_image_encode(jas_image_t *image, jas_stream_t *out, int fmt,
char *optstr);
/* Read a rectangular region of an image component. */
/* The position and size of the rectangular region to be read is specified
relative to the component's coordinate system. */
int jas_image_readcmpt(jas_image_t *image, int cmptno,
jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height,
jas_matrix_t *data);
/* Write a rectangular region of an image component. */
int jas_image_writecmpt(jas_image_t *image, int cmptno,
jas_image_coord_t x, jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height,
jas_matrix_t *data);
/* Delete a component from an image. */
void jas_image_delcmpt(jas_image_t *image, int cmptno);
/* Add a component to an image. */
int jas_image_addcmpt(jas_image_t *image, int cmptno,
jas_image_cmptparm_t *cmptparm);
/* Copy a component from one image to another. */
int jas_image_copycmpt(jas_image_t *dstimage, int dstcmptno,
jas_image_t *srcimage, int srccmptno);
#define JAS_IMAGE_CDT_GETSGND(dtype) (((dtype) >> 7) & 1)
#define JAS_IMAGE_CDT_SETSGND(dtype) (((dtype) & 1) << 7)
#define JAS_IMAGE_CDT_GETPREC(dtype) ((dtype) & 0x7f)
#define JAS_IMAGE_CDT_SETPREC(dtype) ((dtype) & 0x7f)
#define jas_image_cmptdtype(image, cmptno) \
(JAS_IMAGE_CDT_SETSGND((image)->cmpts_[cmptno]->sgnd_) | JAS_IMAGE_CDT_SETPREC((image)->cmpts_[cmptno]->prec_))
int jas_image_depalettize(jas_image_t *image, int cmptno, int numlutents,
int_fast32_t *lutents, int dtype, int newcmptno);
int jas_image_readcmptsample(jas_image_t *image, int cmptno, int x, int y);
void jas_image_writecmptsample(jas_image_t *image, int cmptno, int x, int y,
int_fast32_t v);
int jas_image_getcmptbytype(jas_image_t *image, int ctype);
/******************************************************************************\
* Image format-related operations.
\******************************************************************************/
/* Clear the table of image formats. */
void jas_image_clearfmts(void);
/* Add entry to table of image formats. */
int jas_image_addfmt(int id, char *name, char *ext, char *desc,
jas_image_fmtops_t *ops);
/* Get the ID for the image format with the specified name. */
int jas_image_strtofmt(char *s);
/* Get the name of the image format with the specified ID. */
char *jas_image_fmttostr(int fmt);
/* Lookup image format information by the format ID. */
jas_image_fmtinfo_t *jas_image_lookupfmtbyid(int id);
/* Lookup image format information by the format name. */
jas_image_fmtinfo_t *jas_image_lookupfmtbyname(const char *name);
/* Guess the format of an image file based on its name. */
int jas_image_fmtfromname(char *filename);
/* Get the format of image data in a stream. */
int jas_image_getfmt(jas_stream_t *in);
#define jas_image_cmprof(image) ((image)->cmprof_)
int jas_image_ishomosamp(jas_image_t *image);
int jas_image_sampcmpt(jas_image_t *image, int cmptno, int newcmptno,
jas_image_coord_t ho, jas_image_coord_t vo, jas_image_coord_t hs,
jas_image_coord_t vs, int sgnd, int prec);
int jas_image_writecmpt2(jas_image_t *image, int cmptno, jas_image_coord_t x,
jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height,
long *buf);
int jas_image_readcmpt2(jas_image_t *image, int cmptno, jas_image_coord_t x,
jas_image_coord_t y, jas_image_coord_t width, jas_image_coord_t height,
long *buf);
#define jas_image_setcmprof(image, cmprof) ((image)->cmprof_ = cmprof)
jas_image_t *jas_image_chclrspc(jas_image_t *image, jas_cmprof_t *outprof,
int intent);
void jas_image_dump(jas_image_t *image, FILE *out);
/******************************************************************************\
* Image format-dependent operations.
\******************************************************************************/
#if !defined(EXCLUDE_JPG_SUPPORT)
/* Format-dependent operations for JPG support. */
jas_image_t *jpg_decode(jas_stream_t *in, char *optstr);
int jpg_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int jpg_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_MIF_SUPPORT)
/* Format-dependent operations for MIF support. */
jas_image_t *mif_decode(jas_stream_t *in, char *optstr);
int mif_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int mif_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_PNM_SUPPORT)
/* Format-dependent operations for PNM support. */
jas_image_t *pnm_decode(jas_stream_t *in, char *optstr);
int pnm_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int pnm_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_RAS_SUPPORT)
/* Format-dependent operations for Sun Rasterfile support. */
jas_image_t *ras_decode(jas_stream_t *in, char *optstr);
int ras_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int ras_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_BMP_SUPPORT)
/* Format-dependent operations for BMP support. */
jas_image_t *bmp_decode(jas_stream_t *in, char *optstr);
int bmp_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int bmp_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_JP2_SUPPORT)
/* Format-dependent operations for JP2 support. */
jas_image_t *jp2_decode(jas_stream_t *in, char *optstr);
int jp2_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int jp2_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_JPC_SUPPORT)
/* Format-dependent operations for JPEG-2000 code stream support. */
jas_image_t *jpc_decode(jas_stream_t *in, char *optstr);
int jpc_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int jpc_validate(jas_stream_t *in);
#endif
#if !defined(EXCLUDE_PGX_SUPPORT)
/* Format-dependent operations for PGX support. */
jas_image_t *pgx_decode(jas_stream_t *in, char *optstr);
int pgx_encode(jas_image_t *image, jas_stream_t *out, char *optstr);
int pgx_validate(jas_stream_t *in);
#endif
#ifdef __cplusplus
}
#endif
#endif
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