500 lines
12 KiB
C
500 lines
12 KiB
C
/*
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* Copyright (c) 2002-2003 Michael David Adams.
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* All rights reserved.
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*/
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/* __START_OF_JASPER_LICENSE__
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*
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* JasPer License Version 2.0
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*
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* Copyright (c) 2001-2006 Michael David Adams
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* Copyright (c) 1999-2000 Image Power, Inc.
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* Copyright (c) 1999-2000 The University of British Columbia
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person (the
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* "User") obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, and/or sell copies of the Software, and to permit
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* persons to whom the Software is furnished to do so, subject to the
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* following conditions:
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*
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* 1. The above copyright notices and this permission notice (which
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* includes the disclaimer below) shall be included in all copies or
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* substantial portions of the Software.
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*
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* 2. The name of a copyright holder shall not be used to endorse or
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* promote products derived from the Software without specific prior
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* written permission.
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*
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
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*
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* __END_OF_JASPER_LICENSE__
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*/
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/*!
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* @file jas_cm.h
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* @brief JasPer Color Management
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*/
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#ifndef JAS_CM_H
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#define JAS_CM_H
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/******************************************************************************\
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*
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\******************************************************************************/
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/* The configuration header file should be included first. */
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#include <jasper/jas_config.h>
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#include <jasper/jas_types.h>
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#include <jasper/jas_icc.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*!
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* @addtogroup module_cm
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* @{
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*/
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/******************************************************************************\
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* Types and Macros.
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\******************************************************************************/
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/*!
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@brief
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Color space.
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*/
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typedef unsigned jas_clrspc_t;
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/*!
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@brief
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Transform operations
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*/
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typedef enum {
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JAS_CMXFORM_OP_FWD = 0,
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JAS_CMXFORM_OP_REV = 1,
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JAS_CMXFORM_OP_PROOF = 2,
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JAS_CMXFORM_OP_GAMUT = 3,
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} jas_cmxform_op_t;
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/*!
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@brief
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Rendering intents.
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*/
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typedef enum {
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JAS_CMXFORM_INTENT_PER = 0,
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JAS_CMXFORM_INTENT_RELCLR = 1,
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JAS_CMXFORM_INTENT_ABSCLR = 2,
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JAS_CMXFORM_INTENT_SAT = 3,
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} jas_cmxform_intent_t;
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/*!
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@brief
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Number of rendering intents.
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*/
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#define JAS_CMXFORM_NUMINTENTS 4
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/*!
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@brief
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Transform optimization.
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*/
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typedef enum {
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JAS_CMXFORM_OPTM_SPEED = 0,
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JAS_CMXFORM_OPTM_SIZE = 1,
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JAS_CMXFORM_OPTM_ACC = 2,
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} jas_cmxform_optm_t;
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/*!
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@brief
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Create a color space.
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*/
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#define jas_clrspc_create(fam, mbr) (((fam) << 8) | (mbr))
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/*!
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@brief
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Get the family of a color space.
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*/
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#define jas_clrspc_fam(clrspc) ((clrspc) >> 8)
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/*!
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@brief
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Get the (family) member of a color space.
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*/
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#define jas_clrspc_mbr(clrspc) ((clrspc) & 0xff)
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/*!
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@brief
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Test if a color space is generic.
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*/
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#define jas_clrspc_isgeneric(clrspc) (!jas_clrspc_mbr(clrspc))
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/*!
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@brief
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Test if a color space is unknown.
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*/
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#define jas_clrspc_isunknown(clrspc) ((clrspc) & JAS_CLRSPC_UNKNOWNMASK)
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#define JAS_CLRSPC_UNKNOWNMASK 0x4000
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/*!
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@brief Color space families.
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*/
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#define JAS_CLRSPC_FAM_UNKNOWN 0
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#define JAS_CLRSPC_FAM_XYZ 1
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#define JAS_CLRSPC_FAM_LAB 2
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#define JAS_CLRSPC_FAM_GRAY 3
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#define JAS_CLRSPC_FAM_RGB 4
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#define JAS_CLRSPC_FAM_YCBCR 5
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/*!
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@brief Specific color spaces.
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*/
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#define JAS_CLRSPC_UNKNOWN JAS_CLRSPC_UNKNOWNMASK
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#define JAS_CLRSPC_CIEXYZ jas_clrspc_create(JAS_CLRSPC_FAM_XYZ, 1)
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#define JAS_CLRSPC_CIELAB jas_clrspc_create(JAS_CLRSPC_FAM_LAB, 1)
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#define JAS_CLRSPC_SGRAY jas_clrspc_create(JAS_CLRSPC_FAM_GRAY, 1)
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#define JAS_CLRSPC_SRGB jas_clrspc_create(JAS_CLRSPC_FAM_RGB, 1)
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#define JAS_CLRSPC_SYCBCR jas_clrspc_create(JAS_CLRSPC_FAM_YCBCR, 1)
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/*!
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@brief Generic color spaces.
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*/
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#define JAS_CLRSPC_GENRGB jas_clrspc_create(JAS_CLRSPC_FAM_RGB, 0)
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#define JAS_CLRSPC_GENGRAY jas_clrspc_create(JAS_CLRSPC_FAM_GRAY, 0)
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#define JAS_CLRSPC_GENYCBCR jas_clrspc_create(JAS_CLRSPC_FAM_YCBCR, 0)
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#define JAS_CLRSPC_CHANIND_YCBCR_Y 0
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#define JAS_CLRSPC_CHANIND_YCBCR_CB 1
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#define JAS_CLRSPC_CHANIND_YCBCR_CR 2
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#define JAS_CLRSPC_CHANIND_RGB_R 0
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#define JAS_CLRSPC_CHANIND_RGB_G 1
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#define JAS_CLRSPC_CHANIND_RGB_B 2
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#define JAS_CLRSPC_CHANIND_GRAY_Y 0
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/*!
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Real-number type.
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*/
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typedef double jas_cmreal_t;
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struct jas_cmpxform_s;
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/*!
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@brief
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Component format.
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*/
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typedef struct {
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long *buf;
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unsigned prec;
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int sgnd;
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unsigned width;
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unsigned height;
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} jas_cmcmptfmt_t;
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/*!
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@brief
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Pixmap (i.e., multicomponent) format.
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*/
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typedef struct {
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unsigned numcmpts;
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jas_cmcmptfmt_t *cmptfmts;
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} jas_cmpixmap_t;
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/*!
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@brief
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Transform operations.
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*/
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typedef struct {
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void (*destroy)(struct jas_cmpxform_s *pxform);
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int (*apply)(const struct jas_cmpxform_s *pxform, const jas_cmreal_t *in, jas_cmreal_t *out, unsigned cnt);
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void (*dump)(struct jas_cmpxform_s *pxform);
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} jas_cmpxformops_t;
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/*!
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@brief
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Shaper matrix look-up table (LUT).
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*/
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typedef struct {
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jas_cmreal_t *data;
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unsigned size;
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} jas_cmshapmatlut_t;
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/*!
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@brief
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Shaper matrix.
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*/
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typedef struct {
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int mono;
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int order;
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int useluts;
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int usemat;
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jas_cmshapmatlut_t luts[3];
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jas_cmreal_t mat[3][4];
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} jas_cmshapmat_t;
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/*!
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@brief
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Shaper look-up table (LUT).
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*/
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typedef struct {
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int order;
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} jas_cmshaplut_t;
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/*!
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@brief
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Color space conversion.
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*/
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typedef struct {
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unsigned inclrspc;
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unsigned outclrspc;
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} jas_cmclrspcconv_t;
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/*!
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@brief
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Transform class.
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*/
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typedef struct jas_cmpxform_s {
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unsigned refcnt;
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const jas_cmpxformops_t *ops;
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unsigned numinchans;
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unsigned numoutchans;
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union {
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max_align_t dummy;
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jas_cmshapmat_t shapmat;
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jas_cmshaplut_t shaplut;
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jas_cmclrspcconv_t clrspcconv;
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} data;
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} jas_cmpxform_t;
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/*!
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@brief
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Primitive transform sequence class.
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*/
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typedef struct {
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unsigned numpxforms;
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unsigned maxpxforms;
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jas_cmpxform_t **pxforms;
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} jas_cmpxformseq_t;
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/*!
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@brief
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Primitive transform class.
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*/
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typedef struct {
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unsigned numinchans;
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unsigned numoutchans;
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jas_cmpxformseq_t *pxformseq;
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} jas_cmxform_t;
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#define JAS_CMPROF_TYPE_DEV 1
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#define JAS_CMPROF_TYPE_CLRSPC 2
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#define JAS_CMPROF_NUMPXFORMSEQS 13
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/*!
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Color-management (CM) profile.
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*/
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typedef struct {
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jas_clrspc_t clrspc;
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unsigned numchans;
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unsigned refclrspc;
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unsigned numrefchans;
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jas_iccprof_t *iccprof;
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jas_cmpxformseq_t *pxformseqs[JAS_CMPROF_NUMPXFORMSEQS];
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} jas_cmprof_t;
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/******************************************************************************\
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*
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\******************************************************************************/
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#if 0
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typedef int_fast32_t jas_cmattrname_t;
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typedef int_fast32_t jas_cmattrval_t;
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typedef int_fast32_t jas_cmattrtype_t;
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/* Load a profile. */
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int jas_cmprof_load(jas_cmprof_t *prof, jas_stream_t *in, unsigned fmt);
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/* Save a profile. */
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int jas_cmprof_save(jas_cmprof_t *prof, jas_stream_t *out, unsigned fmt);
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/* Set an attribute of a profile. */
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int jas_cm_prof_setattr(jas_cm_prof_t *prof, jas_cm_attrname_t name, void *val);
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/* Get an attribute of a profile. */
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void *jas_cm_prof_getattr(jas_cm_prof_t *prof, jas_cm_attrname_t name);
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#endif
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/******************************************************************************\
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* Color-management (CM) profile class.
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\******************************************************************************/
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/*!
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@brief
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Create a color-management profile from an ICC profile.
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@details
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This function creates a CM profile from an ICC profile.
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@returns
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If successful, a pointer to the created CM profile is returned.
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Otherwise, a null pointer is returned.
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*/
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JAS_EXPORT
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jas_cmprof_t *jas_cmprof_createfromiccprof(const jas_iccprof_t *iccprof);
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/*!
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@brief
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Create a color-management profile from a color space.
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@details
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The function creates a CM profile from a color space.
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@returns
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If successful, a pointer to the created CM profile is returned.
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Otherwise, a null pointer is returned.
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*/
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JAS_EXPORT
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jas_cmprof_t *jas_cmprof_createfromclrspc(jas_clrspc_t clrspc);
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/*!
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@brief Destroy a color-management profile.
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@details
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*/
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JAS_EXPORT
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void jas_cmprof_destroy(jas_cmprof_t *prof);
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/*!
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@brief
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Copy a color-management profile.
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@details
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This function creates a clone (i.e., copy) of a CM profile.
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@returns
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If successful, a pointer to the newly created CM profile is returned.
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Otherwise, a null pointer is returned.
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*/
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JAS_EXPORT
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jas_cmprof_t *jas_cmprof_copy(const jas_cmprof_t *prof);
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/*!
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@brief
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Create a ICC profile from a CM profile.
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@details
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This function creates an ICC profile from a CM profile.
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@returns
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If successful, a pointer to the created ICC profile is returned.
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Otherwise, a null pointer is returned.
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*/
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JAS_EXPORT
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jas_iccprof_t *jas_iccprof_createfromcmprof(const jas_cmprof_t *prof);
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/******************************************************************************\
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* Color-Management (CM) Transform.
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\******************************************************************************/
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/*!
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@brief
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Create a transform from a CM profile.
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@details
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@returns
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If successful, a pointer to the created transform is returned.
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Otherwise, a null pointer is returned.
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*/
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JAS_EXPORT
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jas_cmxform_t *jas_cmxform_create(const jas_cmprof_t *inprof,
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const jas_cmprof_t *outprof, const jas_cmprof_t *proofprof,
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jas_cmxform_op_t op, jas_cmxform_intent_t intent,
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jas_cmxform_optm_t optimize);
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/*!
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@brief
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Destroy a transform.
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@details
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*/
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JAS_EXPORT
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void jas_cmxform_destroy(jas_cmxform_t *xform);
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/*!
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@brief
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Apply a transform to data.
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@details
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@returns
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If successful, zero is returned.
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Otherwise, a nonzero value is returned.
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*/
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JAS_EXPORT
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int jas_cmxform_apply(const jas_cmxform_t *xform, const jas_cmpixmap_t *in,
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jas_cmpixmap_t *out);
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/******************************************************************************\
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* Miscellany.
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\******************************************************************************/
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/*!
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@brief
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Get the number of channels associated with a particular color space.
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@details
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@returns
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*/
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unsigned jas_clrspc_numchans(jas_clrspc_t clrspc);
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/*!
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@brief
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Get the color space associated with a color-management profile.
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@details
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@returns
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*/
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#define jas_cmprof_clrspc(prof) ((prof)->clrspc)
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/*!
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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