1280 lines
39 KiB
C
1280 lines
39 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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* Color Management
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*
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* $Id: jas_cm.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
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*/
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#include <jasper/jas_config.h>
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#include <math.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <jasper/jas_cm.h>
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#include <jasper/jas_icc.h>
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#include <jasper/jas_init.h>
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#include <jasper/jas_stream.h>
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#include <jasper/jas_malloc.h>
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#include <jasper/jas_math.h>
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static jas_cmprof_t *jas_cmprof_create(void);
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static void jas_cmshapmatlut_cleanup(jas_cmshapmatlut_t *);
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static jas_cmreal_t jas_cmshapmatlut_lookup(jas_cmshapmatlut_t *lut, jas_cmreal_t x);
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static void jas_cmpxform_destroy(jas_cmpxform_t *pxform);
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static jas_cmpxform_t *jas_cmpxform_copy(jas_cmpxform_t *pxform);
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static void jas_cmshapmat_destroy(jas_cmpxform_t *pxform);
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static int jas_cmshapmat_apply(jas_cmpxform_t *pxform, jas_cmreal_t *in,
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jas_cmreal_t *out, int cnt);
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static int jas_cmputint(long **bufptr, int sgnd, int prec, long val);
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static int jas_cmgetint(long **bufptr, int sgnd, int prec, long *val);
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static int jas_cmpxformseq_append(jas_cmpxformseq_t *pxformseq,
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jas_cmpxformseq_t *othpxformseq);
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static int jas_cmpxformseq_appendcnvt(jas_cmpxformseq_t *pxformseq,
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int, int);
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static int jas_cmpxformseq_resize(jas_cmpxformseq_t *pxformseq, int n);
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static int mono(jas_iccprof_t *prof, int op, jas_cmpxformseq_t **pxformseq);
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static int triclr(jas_iccprof_t *prof, int op, jas_cmpxformseq_t **retpxformseq);
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static void jas_cmpxformseq_destroy(jas_cmpxformseq_t *pxformseq);
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static int jas_cmpxformseq_delete(jas_cmpxformseq_t *pxformseq, int i);
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static jas_cmpxformseq_t *jas_cmpxformseq_create(void);
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static jas_cmpxformseq_t *jas_cmpxformseq_copy(jas_cmpxformseq_t *pxformseq);
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static int jas_cmshapmat_invmat(jas_cmreal_t out[3][4], jas_cmreal_t in[3][4]);
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static int jas_cmpxformseq_insertpxform(jas_cmpxformseq_t *pxformseq,
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int i, jas_cmpxform_t *pxform);
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#define SEQFWD(intent) (intent)
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#define SEQREV(intent) (4 + (intent))
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#define SEQSIM(intent) (8 + (intent))
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#define SEQGAM 12
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#define fwdpxformseq(prof, intent) \
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(((prof)->pxformseqs[SEQFWD(intent)]) ? \
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((prof)->pxformseqs[SEQFWD(intent)]) : \
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((prof)->pxformseqs[SEQFWD(0)]))
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#define revpxformseq(prof, intent) \
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(((prof)->pxformseqs[SEQREV(intent)]) ? \
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((prof)->pxformseqs[SEQREV(intent)]) : \
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((prof)->pxformseqs[SEQREV(0)]))
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#define simpxformseq(prof, intent) \
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(((prof)->pxformseqs[SEQSIM(intent)]) ? \
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((prof)->pxformseqs[SEQSIM(intent)]) : \
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((prof)->pxformseqs[SEQSIM(0)]))
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#define gampxformseq(prof) ((prof)->pxformseqs[SEQGAM])
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static int icctoclrspc(int iccclrspc, int refflag);
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static jas_cmpxform_t *jas_cmpxform_create0(void);
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static jas_cmpxform_t *jas_cmpxform_createshapmat(void);
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static void jas_cmshapmatlut_init(jas_cmshapmatlut_t *lut);
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static int jas_cmshapmatlut_set(jas_cmshapmatlut_t *lut, jas_icccurv_t *curv);
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static jas_cmpxformops_t shapmat_ops = {jas_cmshapmat_destroy, jas_cmshapmat_apply, 0};
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static jas_cmprof_t *jas_cmprof_createsycc(void);
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/******************************************************************************\
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* Color profile class.
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\******************************************************************************/
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jas_cmprof_t *jas_cmprof_createfromclrspc(int clrspc)
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{
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jas_iccprof_t *iccprof;
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jas_cmprof_t *prof;
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iccprof = 0;
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prof = 0;
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switch (clrspc) {
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case JAS_CLRSPC_SYCBCR:
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if (!(prof = jas_cmprof_createsycc()))
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goto error;
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break;
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default:
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if (!(iccprof = jas_iccprof_createfromclrspc(clrspc)))
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goto error;
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if (!(prof = jas_cmprof_createfromiccprof(iccprof)))
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goto error;
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jas_iccprof_destroy(iccprof);
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iccprof = 0;
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if (!jas_clrspc_isgeneric(clrspc))
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prof->clrspc = clrspc;
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break;
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}
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return prof;
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error:
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if (iccprof)
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jas_iccprof_destroy(iccprof);
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return 0;
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}
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static jas_cmprof_t *jas_cmprof_createsycc()
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{
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jas_cmprof_t *prof;
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jas_cmpxform_t *fwdpxform;
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jas_cmpxform_t *revpxform;
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jas_cmshapmat_t *fwdshapmat;
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jas_cmshapmat_t *revshapmat;
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int i;
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int j;
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if (!(prof = jas_cmprof_createfromclrspc(JAS_CLRSPC_SRGB)))
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goto error;
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prof->clrspc = JAS_CLRSPC_SYCBCR;
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assert(prof->numchans == 3 && prof->numrefchans == 3);
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assert(prof->refclrspc == JAS_CLRSPC_CIEXYZ);
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if (!(fwdpxform = jas_cmpxform_createshapmat()))
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goto error;
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fwdpxform->numinchans = 3;
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fwdpxform->numoutchans = 3;
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fwdshapmat = &fwdpxform->data.shapmat;
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fwdshapmat->mono = 0;
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fwdshapmat->order = 0;
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fwdshapmat->useluts = 0;
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fwdshapmat->usemat = 1;
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fwdshapmat->mat[0][0] = 1.0;
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fwdshapmat->mat[0][1] = 0.0;
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fwdshapmat->mat[0][2] = 1.402;
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fwdshapmat->mat[1][0] = 1.0;
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fwdshapmat->mat[1][1] = -0.34413;
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fwdshapmat->mat[1][2] = -0.71414;
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fwdshapmat->mat[2][0] = 1.0;
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fwdshapmat->mat[2][1] = 1.772;
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fwdshapmat->mat[2][2] = 0.0;
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fwdshapmat->mat[0][3] = -0.5 * (1.402);
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fwdshapmat->mat[1][3] = -0.5 * (-0.34413 - 0.71414);
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fwdshapmat->mat[2][3] = -0.5 * (1.772);
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if (!(revpxform = jas_cmpxform_createshapmat()))
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goto error;
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revpxform->numinchans = 3;
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revpxform->numoutchans = 3;
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revshapmat = &revpxform->data.shapmat;
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revshapmat->mono = 0;
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revshapmat->order = 1;
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revshapmat->useluts = 0;
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revshapmat->usemat = 1;
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jas_cmshapmat_invmat(revshapmat->mat, fwdshapmat->mat);
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for (i = 0; i < JAS_CMXFORM_NUMINTENTS; ++i) {
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j = SEQFWD(i);
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if (prof->pxformseqs[j]) {
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if (jas_cmpxformseq_insertpxform(prof->pxformseqs[j], 0,
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fwdpxform))
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goto error;
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}
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j = SEQREV(i);
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if (prof->pxformseqs[j]) {
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if (jas_cmpxformseq_insertpxform(prof->pxformseqs[j],
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-1, revpxform))
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goto error;
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}
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}
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jas_cmpxform_destroy(fwdpxform);
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jas_cmpxform_destroy(revpxform);
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return prof;
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error:
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return 0;
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}
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jas_cmprof_t *jas_cmprof_createfromiccprof(jas_iccprof_t *iccprof)
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{
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jas_cmprof_t *prof;
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jas_icchdr_t icchdr;
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jas_cmpxformseq_t *fwdpxformseq;
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jas_cmpxformseq_t *revpxformseq;
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prof = 0;
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fwdpxformseq = 0;
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revpxformseq = 0;
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if (!(prof = jas_cmprof_create()))
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goto error;
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jas_iccprof_gethdr(iccprof, &icchdr);
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if (!(prof->iccprof = jas_iccprof_copy(iccprof)))
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goto error;
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prof->clrspc = icctoclrspc(icchdr.colorspc, 0);
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prof->refclrspc = icctoclrspc(icchdr.refcolorspc, 1);
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prof->numchans = jas_clrspc_numchans(prof->clrspc);
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prof->numrefchans = jas_clrspc_numchans(prof->refclrspc);
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if (prof->numchans == 1) {
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if (mono(prof->iccprof, 0, &fwdpxformseq))
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goto error;
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if (mono(prof->iccprof, 1, &revpxformseq))
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goto error;
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} else if (prof->numchans == 3) {
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if (triclr(prof->iccprof, 0, &fwdpxformseq))
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goto error;
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if (triclr(prof->iccprof, 1, &revpxformseq))
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goto error;
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}
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prof->pxformseqs[SEQFWD(0)] = fwdpxformseq;
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prof->pxformseqs[SEQREV(0)] = revpxformseq;
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#if 0
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if (prof->numchans > 1) {
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lut(prof->iccprof, 0, PER, &pxformseq);
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pxformseqs_set(prof, SEQFWD(PER), pxformseq);
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lut(prof->iccprof, 1, PER, &pxformseq);
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pxformseqs_set(prof, SEQREV(PER), pxformseq);
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lut(prof->iccprof, 0, CLR, &pxformseq);
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pxformseqs_set(prof, SEQREV(CLR), pxformseq);
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lut(prof->iccprof, 1, CLR, &pxformseq);
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pxformseqs_set(prof, SEQREV(CLR), pxformseq);
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lut(prof->iccprof, 0, SAT, &pxformseq);
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pxformseqs_set(prof, SEQREV(SAT), pxformseq);
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lut(prof->iccprof, 1, SAT, &pxformseq);
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pxformseqs_set(prof, SEQREV(SAT), pxformseq);
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}
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#endif
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return prof;
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error:
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if (fwdpxformseq) {
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jas_cmpxformseq_destroy(fwdpxformseq);
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}
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if (revpxformseq) {
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jas_cmpxformseq_destroy(revpxformseq);
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}
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if (prof) {
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jas_cmprof_destroy(prof);
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}
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return 0;
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}
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static jas_cmprof_t *jas_cmprof_create()
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{
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int i;
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jas_cmprof_t *prof;
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if (!(prof = jas_malloc(sizeof(jas_cmprof_t))))
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return 0;
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memset(prof, 0, sizeof(jas_cmprof_t));
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prof->iccprof = 0;
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for (i = 0; i < JAS_CMPROF_NUMPXFORMSEQS; ++i)
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prof->pxformseqs[i] = 0;
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return prof;
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}
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|
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void jas_cmprof_destroy(jas_cmprof_t *prof)
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{
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int i;
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for (i = 0; i < JAS_CMPROF_NUMPXFORMSEQS; ++i) {
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if (prof->pxformseqs[i]) {
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jas_cmpxformseq_destroy(prof->pxformseqs[i]);
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prof->pxformseqs[i] = 0;
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}
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}
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if (prof->iccprof)
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jas_iccprof_destroy(prof->iccprof);
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jas_free(prof);
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}
|
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|
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jas_cmprof_t *jas_cmprof_copy(jas_cmprof_t *prof)
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{
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jas_cmprof_t *newprof;
|
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int i;
|
|
|
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if (!(newprof = jas_cmprof_create()))
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goto error;
|
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newprof->clrspc = prof->clrspc;
|
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newprof->numchans = prof->numchans;
|
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newprof->refclrspc = prof->refclrspc;
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newprof->numrefchans = prof->numrefchans;
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newprof->iccprof = jas_iccprof_copy(prof->iccprof);
|
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for (i = 0; i < JAS_CMPROF_NUMPXFORMSEQS; ++i) {
|
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if (prof->pxformseqs[i]) {
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if (!(newprof->pxformseqs[i] = jas_cmpxformseq_copy(prof->pxformseqs[i])))
|
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goto error;
|
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}
|
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}
|
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return newprof;
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error:
|
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return 0;
|
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}
|
|
|
|
/******************************************************************************\
|
|
* Transform class.
|
|
\******************************************************************************/
|
|
|
|
jas_cmxform_t *jas_cmxform_create(jas_cmprof_t *inprof, jas_cmprof_t *outprof,
|
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jas_cmprof_t *prfprof, int op, int intent, int optimize)
|
|
{
|
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jas_cmxform_t *xform;
|
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jas_cmpxformseq_t *inpxformseq;
|
|
jas_cmpxformseq_t *outpxformseq;
|
|
jas_cmpxformseq_t *altoutpxformseq;
|
|
jas_cmpxformseq_t *prfpxformseq;
|
|
int prfintent;
|
|
|
|
/* Avoid compiler warnings about unused parameters. */
|
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optimize = 0;
|
|
|
|
prfintent = intent;
|
|
|
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if (!(xform = jas_malloc(sizeof(jas_cmxform_t))))
|
|
goto error;
|
|
if (!(xform->pxformseq = jas_cmpxformseq_create()))
|
|
goto error;
|
|
|
|
switch (op) {
|
|
case JAS_CMXFORM_OP_FWD:
|
|
inpxformseq = fwdpxformseq(inprof, intent);
|
|
outpxformseq = revpxformseq(outprof, intent);
|
|
if (!inpxformseq || !outpxformseq)
|
|
goto error;
|
|
if (jas_cmpxformseq_append(xform->pxformseq, inpxformseq) ||
|
|
jas_cmpxformseq_appendcnvt(xform->pxformseq,
|
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inprof->refclrspc, outprof->refclrspc) ||
|
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jas_cmpxformseq_append(xform->pxformseq, outpxformseq))
|
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goto error;
|
|
xform->numinchans = jas_clrspc_numchans(inprof->clrspc);
|
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xform->numoutchans = jas_clrspc_numchans(outprof->clrspc);
|
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break;
|
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case JAS_CMXFORM_OP_REV:
|
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outpxformseq = fwdpxformseq(outprof, intent);
|
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inpxformseq = revpxformseq(inprof, intent);
|
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if (!outpxformseq || !inpxformseq)
|
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goto error;
|
|
if (jas_cmpxformseq_append(xform->pxformseq, outpxformseq) ||
|
|
jas_cmpxformseq_appendcnvt(xform->pxformseq,
|
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outprof->refclrspc, inprof->refclrspc) ||
|
|
jas_cmpxformseq_append(xform->pxformseq, inpxformseq))
|
|
goto error;
|
|
xform->numinchans = jas_clrspc_numchans(outprof->clrspc);
|
|
xform->numoutchans = jas_clrspc_numchans(inprof->clrspc);
|
|
break;
|
|
case JAS_CMXFORM_OP_PROOF:
|
|
assert(prfprof);
|
|
inpxformseq = fwdpxformseq(inprof, intent);
|
|
prfpxformseq = fwdpxformseq(prfprof, prfintent);
|
|
if (!inpxformseq || !prfpxformseq)
|
|
goto error;
|
|
outpxformseq = simpxformseq(outprof, intent);
|
|
altoutpxformseq = 0;
|
|
if (!outpxformseq) {
|
|
outpxformseq = revpxformseq(outprof, intent);
|
|
altoutpxformseq = fwdpxformseq(outprof, intent);
|
|
if (!outpxformseq || !altoutpxformseq)
|
|
goto error;
|
|
}
|
|
if (jas_cmpxformseq_append(xform->pxformseq, inpxformseq) ||
|
|
jas_cmpxformseq_appendcnvt(xform->pxformseq,
|
|
inprof->refclrspc, outprof->refclrspc))
|
|
goto error;
|
|
if (altoutpxformseq) {
|
|
if (jas_cmpxformseq_append(xform->pxformseq, outpxformseq) ||
|
|
jas_cmpxformseq_append(xform->pxformseq, altoutpxformseq))
|
|
goto error;
|
|
} else {
|
|
if (jas_cmpxformseq_append(xform->pxformseq, outpxformseq))
|
|
goto error;
|
|
}
|
|
if (jas_cmpxformseq_appendcnvt(xform->pxformseq,
|
|
outprof->refclrspc, inprof->refclrspc) ||
|
|
jas_cmpxformseq_append(xform->pxformseq, prfpxformseq))
|
|
goto error;
|
|
xform->numinchans = jas_clrspc_numchans(inprof->clrspc);
|
|
xform->numoutchans = jas_clrspc_numchans(prfprof->clrspc);
|
|
break;
|
|
case JAS_CMXFORM_OP_GAMUT:
|
|
inpxformseq = fwdpxformseq(inprof, intent);
|
|
outpxformseq = gampxformseq(outprof);
|
|
if (!inpxformseq || !outpxformseq)
|
|
goto error;
|
|
if (jas_cmpxformseq_append(xform->pxformseq, inpxformseq) ||
|
|
jas_cmpxformseq_appendcnvt(xform->pxformseq,
|
|
inprof->refclrspc, outprof->refclrspc) ||
|
|
jas_cmpxformseq_append(xform->pxformseq, outpxformseq))
|
|
goto error;
|
|
xform->numinchans = jas_clrspc_numchans(inprof->clrspc);
|
|
xform->numoutchans = 1;
|
|
break;
|
|
}
|
|
return xform;
|
|
error:
|
|
return 0;
|
|
}
|
|
|
|
#define APPLYBUFSIZ 2048
|
|
int jas_cmxform_apply(jas_cmxform_t *xform, jas_cmpixmap_t *in, jas_cmpixmap_t *out)
|
|
{
|
|
jas_cmcmptfmt_t *fmt;
|
|
jas_cmreal_t buf[2][APPLYBUFSIZ];
|
|
jas_cmpxformseq_t *pxformseq;
|
|
int i;
|
|
int j;
|
|
int width;
|
|
int height;
|
|
int total;
|
|
int n;
|
|
jas_cmreal_t *inbuf;
|
|
jas_cmreal_t *outbuf;
|
|
jas_cmpxform_t *pxform;
|
|
long *dataptr;
|
|
int maxchans;
|
|
int bufmax;
|
|
int m;
|
|
int bias;
|
|
jas_cmreal_t scale;
|
|
long v;
|
|
jas_cmreal_t *bufptr;
|
|
|
|
if (xform->numinchans > in->numcmpts || xform->numoutchans > out->numcmpts)
|
|
goto error;
|
|
|
|
fmt = &in->cmptfmts[0];
|
|
width = fmt->width;
|
|
height = fmt->height;
|
|
for (i = 1; i < xform->numinchans; ++i) {
|
|
fmt = &in->cmptfmts[i];
|
|
if (fmt->width != width || fmt->height != height) {
|
|
goto error;
|
|
}
|
|
}
|
|
for (i = 0; i < xform->numoutchans; ++i) {
|
|
fmt = &out->cmptfmts[i];
|
|
if (fmt->width != width || fmt->height != height) {
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
maxchans = 0;
|
|
pxformseq = xform->pxformseq;
|
|
for (i = 0; i < pxformseq->numpxforms; ++i) {
|
|
pxform = pxformseq->pxforms[i];
|
|
if (pxform->numinchans > maxchans) {
|
|
maxchans = pxform->numinchans;
|
|
}
|
|
if (pxform->numoutchans > maxchans) {
|
|
maxchans = pxform->numoutchans;
|
|
}
|
|
}
|
|
bufmax = APPLYBUFSIZ / maxchans;
|
|
assert(bufmax > 0);
|
|
|
|
total = width * height;
|
|
n = 0;
|
|
while (n < total) {
|
|
|
|
inbuf = &buf[0][0];
|
|
m = JAS_MIN(total - n, bufmax);
|
|
|
|
for (i = 0; i < xform->numinchans; ++i) {
|
|
fmt = &in->cmptfmts[i];
|
|
scale = (double)((1 << fmt->prec) - 1);
|
|
bias = fmt->sgnd ? (1 << (fmt->prec - 1)) : 0;
|
|
dataptr = &fmt->buf[n];
|
|
bufptr = &inbuf[i];
|
|
for (j = 0; j < m; ++j) {
|
|
if (jas_cmgetint(&dataptr, fmt->sgnd, fmt->prec, &v))
|
|
goto error;
|
|
*bufptr = (v - bias) / scale;
|
|
bufptr += xform->numinchans;
|
|
}
|
|
}
|
|
|
|
inbuf = &buf[0][0];
|
|
outbuf = inbuf;
|
|
for (i = 0; i < pxformseq->numpxforms; ++i) {
|
|
pxform = pxformseq->pxforms[i];
|
|
if (pxform->numoutchans > pxform->numinchans) {
|
|
outbuf = (inbuf == &buf[0][0]) ? &buf[1][0] : &buf[0][0];
|
|
} else {
|
|
outbuf = inbuf;
|
|
}
|
|
if ((*pxform->ops->apply)(pxform, inbuf, outbuf, m))
|
|
goto error;
|
|
inbuf = outbuf;
|
|
}
|
|
|
|
for (i = 0; i < xform->numoutchans; ++i) {
|
|
fmt = &out->cmptfmts[i];
|
|
scale = (double)((1 << fmt->prec) - 1);
|
|
bias = fmt->sgnd ? (1 << (fmt->prec - 1)) : 0;
|
|
bufptr = &outbuf[i];
|
|
dataptr = &fmt->buf[n];
|
|
for (j = 0; j < m; ++j) {
|
|
v = (*bufptr) * scale + bias;
|
|
bufptr += xform->numoutchans;
|
|
if (jas_cmputint(&dataptr, fmt->sgnd, fmt->prec, v))
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
n += m;
|
|
}
|
|
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
void jas_cmxform_destroy(jas_cmxform_t *xform)
|
|
{
|
|
if (xform->pxformseq)
|
|
jas_cmpxformseq_destroy(xform->pxformseq);
|
|
jas_free(xform);
|
|
}
|
|
|
|
/******************************************************************************\
|
|
* Primitive transform sequence class.
|
|
\******************************************************************************/
|
|
|
|
static jas_cmpxformseq_t *jas_cmpxformseq_create()
|
|
{
|
|
jas_cmpxformseq_t *pxformseq;
|
|
pxformseq = 0;
|
|
if (!(pxformseq = jas_malloc(sizeof(jas_cmpxformseq_t))))
|
|
goto error;
|
|
pxformseq->pxforms = 0;
|
|
pxformseq->numpxforms = 0;
|
|
pxformseq->maxpxforms = 0;
|
|
if (jas_cmpxformseq_resize(pxformseq, 16))
|
|
goto error;
|
|
return pxformseq;
|
|
error:
|
|
if (pxformseq)
|
|
jas_cmpxformseq_destroy(pxformseq);
|
|
return 0;
|
|
}
|
|
|
|
static jas_cmpxformseq_t *jas_cmpxformseq_copy(jas_cmpxformseq_t *pxformseq)
|
|
{
|
|
jas_cmpxformseq_t *newpxformseq;
|
|
|
|
if (!(newpxformseq = jas_cmpxformseq_create()))
|
|
goto error;
|
|
if (jas_cmpxformseq_append(newpxformseq, pxformseq))
|
|
goto error;
|
|
return newpxformseq;
|
|
error:
|
|
return 0;
|
|
}
|
|
|
|
static void jas_cmpxformseq_destroy(jas_cmpxformseq_t *pxformseq)
|
|
{
|
|
while (pxformseq->numpxforms > 0)
|
|
jas_cmpxformseq_delete(pxformseq, pxformseq->numpxforms - 1);
|
|
if (pxformseq->pxforms)
|
|
jas_free(pxformseq->pxforms);
|
|
jas_free(pxformseq);
|
|
}
|
|
|
|
static int jas_cmpxformseq_delete(jas_cmpxformseq_t *pxformseq, int i)
|
|
{
|
|
assert(i >= 0 && i < pxformseq->numpxforms);
|
|
if (i != pxformseq->numpxforms - 1)
|
|
abort();
|
|
jas_cmpxform_destroy(pxformseq->pxforms[i]);
|
|
pxformseq->pxforms[i] = 0;
|
|
--pxformseq->numpxforms;
|
|
return 0;
|
|
}
|
|
|
|
static int jas_cmpxformseq_appendcnvt(jas_cmpxformseq_t *pxformseq,
|
|
int dstclrspc, int srcclrspc)
|
|
{
|
|
if (dstclrspc == srcclrspc)
|
|
return 0;
|
|
abort();
|
|
/* Avoid compiler warnings about unused parameters. */
|
|
pxformseq = 0;
|
|
return -1;
|
|
}
|
|
|
|
static int jas_cmpxformseq_insertpxform(jas_cmpxformseq_t *pxformseq,
|
|
int i, jas_cmpxform_t *pxform)
|
|
{
|
|
jas_cmpxform_t *tmppxform;
|
|
int n;
|
|
if (i < 0)
|
|
i = pxformseq->numpxforms;
|
|
assert(i >= 0 && i <= pxformseq->numpxforms);
|
|
if (pxformseq->numpxforms >= pxformseq->maxpxforms) {
|
|
if (jas_cmpxformseq_resize(pxformseq, pxformseq->numpxforms +
|
|
16))
|
|
goto error;
|
|
}
|
|
assert(pxformseq->numpxforms < pxformseq->maxpxforms);
|
|
if (!(tmppxform = jas_cmpxform_copy(pxform)))
|
|
goto error;
|
|
n = pxformseq->numpxforms - i;
|
|
if (n > 0) {
|
|
memmove(&pxformseq->pxforms[i + 1], &pxformseq->pxforms[i],
|
|
n * sizeof(jas_cmpxform_t *));
|
|
}
|
|
pxformseq->pxforms[i] = tmppxform;
|
|
++pxformseq->numpxforms;
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
static int jas_cmpxformseq_append(jas_cmpxformseq_t *pxformseq,
|
|
jas_cmpxformseq_t *othpxformseq)
|
|
{
|
|
int n;
|
|
int i;
|
|
jas_cmpxform_t *pxform;
|
|
jas_cmpxform_t *othpxform;
|
|
n = pxformseq->numpxforms + othpxformseq->numpxforms;
|
|
if (n > pxformseq->maxpxforms) {
|
|
if (jas_cmpxformseq_resize(pxformseq, n))
|
|
goto error;
|
|
}
|
|
for (i = 0; i < othpxformseq->numpxforms; ++i) {
|
|
othpxform = othpxformseq->pxforms[i];
|
|
if (!(pxform = jas_cmpxform_copy(othpxform)))
|
|
goto error;
|
|
pxformseq->pxforms[pxformseq->numpxforms] = pxform;
|
|
++pxformseq->numpxforms;
|
|
}
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
static int jas_cmpxformseq_resize(jas_cmpxformseq_t *pxformseq, int n)
|
|
{
|
|
jas_cmpxform_t **p;
|
|
assert(n >= pxformseq->numpxforms);
|
|
p = jas_realloc2(pxformseq->pxforms, n, sizeof(jas_cmpxform_t *));
|
|
if (!p) {
|
|
return -1;
|
|
}
|
|
pxformseq->pxforms = p;
|
|
pxformseq->maxpxforms = n;
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************\
|
|
* Primitive transform class.
|
|
\******************************************************************************/
|
|
|
|
static jas_cmpxform_t *jas_cmpxform_create0()
|
|
{
|
|
jas_cmpxform_t *pxform;
|
|
if (!(pxform = jas_malloc(sizeof(jas_cmpxform_t))))
|
|
return 0;
|
|
memset(pxform, 0, sizeof(jas_cmpxform_t));
|
|
pxform->refcnt = 0;
|
|
pxform->ops = 0;
|
|
return pxform;
|
|
}
|
|
|
|
static void jas_cmpxform_destroy(jas_cmpxform_t *pxform)
|
|
{
|
|
if (--pxform->refcnt <= 0) {
|
|
(*pxform->ops->destroy)(pxform);
|
|
jas_free(pxform);
|
|
}
|
|
}
|
|
|
|
static jas_cmpxform_t *jas_cmpxform_copy(jas_cmpxform_t *pxform)
|
|
{
|
|
++pxform->refcnt;
|
|
return pxform;
|
|
}
|
|
|
|
/******************************************************************************\
|
|
* Shaper matrix class.
|
|
\******************************************************************************/
|
|
|
|
static jas_cmpxform_t *jas_cmpxform_createshapmat()
|
|
{
|
|
int i;
|
|
int j;
|
|
jas_cmpxform_t *pxform;
|
|
jas_cmshapmat_t *shapmat;
|
|
if (!(pxform = jas_cmpxform_create0()))
|
|
return 0;
|
|
pxform->ops = &shapmat_ops;
|
|
shapmat = &pxform->data.shapmat;
|
|
shapmat->mono = 0;
|
|
shapmat->order = 0;
|
|
shapmat->useluts = 0;
|
|
shapmat->usemat = 0;
|
|
for (i = 0; i < 3; ++i)
|
|
jas_cmshapmatlut_init(&shapmat->luts[i]);
|
|
for (i = 0; i < 3; ++i) {
|
|
for (j = 0; j < 4; ++j)
|
|
shapmat->mat[i][j] = 0.0;
|
|
}
|
|
++pxform->refcnt;
|
|
return pxform;
|
|
}
|
|
|
|
static void jas_cmshapmat_destroy(jas_cmpxform_t *pxform)
|
|
{
|
|
jas_cmshapmat_t *shapmat = &pxform->data.shapmat;
|
|
int i;
|
|
for (i = 0; i < 3; ++i)
|
|
jas_cmshapmatlut_cleanup(&shapmat->luts[i]);
|
|
}
|
|
|
|
static int jas_cmshapmat_apply(jas_cmpxform_t *pxform, jas_cmreal_t *in,
|
|
jas_cmreal_t *out, int cnt)
|
|
{
|
|
jas_cmshapmat_t *shapmat = &pxform->data.shapmat;
|
|
jas_cmreal_t *src;
|
|
jas_cmreal_t *dst;
|
|
jas_cmreal_t a0;
|
|
jas_cmreal_t a1;
|
|
jas_cmreal_t a2;
|
|
jas_cmreal_t b0;
|
|
jas_cmreal_t b1;
|
|
jas_cmreal_t b2;
|
|
src = in;
|
|
dst = out;
|
|
if (!shapmat->mono) {
|
|
while (--cnt >= 0) {
|
|
a0 = *src++;
|
|
a1 = *src++;
|
|
a2 = *src++;
|
|
if (!shapmat->order && shapmat->useluts) {
|
|
a0 = jas_cmshapmatlut_lookup(&shapmat->luts[0], a0);
|
|
a1 = jas_cmshapmatlut_lookup(&shapmat->luts[1], a1);
|
|
a2 = jas_cmshapmatlut_lookup(&shapmat->luts[2], a2);
|
|
}
|
|
if (shapmat->usemat) {
|
|
b0 = shapmat->mat[0][0] * a0
|
|
+ shapmat->mat[0][1] * a1
|
|
+ shapmat->mat[0][2] * a2
|
|
+ shapmat->mat[0][3];
|
|
b1 = shapmat->mat[1][0] * a0
|
|
+ shapmat->mat[1][1] * a1
|
|
+ shapmat->mat[1][2] * a2
|
|
+ shapmat->mat[1][3];
|
|
b2 = shapmat->mat[2][0] * a0
|
|
+ shapmat->mat[2][1] * a1
|
|
+ shapmat->mat[2][2] * a2
|
|
+ shapmat->mat[2][3];
|
|
a0 = b0;
|
|
a1 = b1;
|
|
a2 = b2;
|
|
}
|
|
if (shapmat->order && shapmat->useluts) {
|
|
a0 = jas_cmshapmatlut_lookup(&shapmat->luts[0], a0);
|
|
a1 = jas_cmshapmatlut_lookup(&shapmat->luts[1], a1);
|
|
a2 = jas_cmshapmatlut_lookup(&shapmat->luts[2], a2);
|
|
}
|
|
*dst++ = a0;
|
|
*dst++ = a1;
|
|
*dst++ = a2;
|
|
}
|
|
} else {
|
|
if (!shapmat->order) {
|
|
while (--cnt >= 0) {
|
|
a0 = *src++;
|
|
if (shapmat->useluts)
|
|
a0 = jas_cmshapmatlut_lookup(&shapmat->luts[0], a0);
|
|
a2 = a0 * shapmat->mat[2][0];
|
|
a1 = a0 * shapmat->mat[1][0];
|
|
a0 = a0 * shapmat->mat[0][0];
|
|
*dst++ = a0;
|
|
*dst++ = a1;
|
|
*dst++ = a2;
|
|
}
|
|
} else {
|
|
while (--cnt >= 0) {
|
|
a0 = *src++;
|
|
src++;
|
|
src++;
|
|
a0 = a0 * shapmat->mat[0][0];
|
|
if (shapmat->useluts)
|
|
a0 = jas_cmshapmatlut_lookup(&shapmat->luts[0], a0);
|
|
*dst++ = a0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void jas_cmshapmatlut_init(jas_cmshapmatlut_t *lut)
|
|
{
|
|
lut->data = 0;
|
|
lut->size = 0;
|
|
}
|
|
|
|
static void jas_cmshapmatlut_cleanup(jas_cmshapmatlut_t *lut)
|
|
{
|
|
if (lut->data) {
|
|
jas_free(lut->data);
|
|
lut->data = 0;
|
|
}
|
|
lut->size = 0;
|
|
}
|
|
|
|
static double gammafn(double x, double gamma)
|
|
{
|
|
if (x == 0.0)
|
|
return 0.0;
|
|
return pow(x, gamma);
|
|
}
|
|
|
|
static int jas_cmshapmatlut_set(jas_cmshapmatlut_t *lut, jas_icccurv_t *curv)
|
|
{
|
|
jas_cmreal_t gamma;
|
|
int i;
|
|
gamma = 0;
|
|
jas_cmshapmatlut_cleanup(lut);
|
|
if (curv->numents == 0) {
|
|
lut->size = 2;
|
|
if (!(lut->data = jas_alloc2(lut->size, sizeof(jas_cmreal_t))))
|
|
goto error;
|
|
lut->data[0] = 0.0;
|
|
lut->data[1] = 1.0;
|
|
} else if (curv->numents == 1) {
|
|
lut->size = 256;
|
|
if (!(lut->data = jas_alloc2(lut->size, sizeof(jas_cmreal_t))))
|
|
goto error;
|
|
gamma = curv->ents[0] / 256.0;
|
|
for (i = 0; i < lut->size; ++i) {
|
|
lut->data[i] = gammafn(i / (double) (lut->size - 1), gamma);
|
|
}
|
|
} else {
|
|
lut->size = curv->numents;
|
|
if (!(lut->data = jas_alloc2(lut->size, sizeof(jas_cmreal_t))))
|
|
goto error;
|
|
for (i = 0; i < lut->size; ++i) {
|
|
lut->data[i] = curv->ents[i] / 65535.0;
|
|
}
|
|
}
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
static jas_cmreal_t jas_cmshapmatlut_lookup(jas_cmshapmatlut_t *lut, jas_cmreal_t x)
|
|
{
|
|
jas_cmreal_t t;
|
|
int lo;
|
|
int hi;
|
|
t = x * (lut->size - 1);
|
|
lo = floor(t);
|
|
if (lo < 0)
|
|
return lut->data[0];
|
|
hi = ceil(t);
|
|
if (hi >= lut->size)
|
|
return lut->data[lut->size - 1];
|
|
return lut->data[lo] + (t - lo) * (lut->data[hi] - lut->data[lo]);
|
|
}
|
|
|
|
static int jas_cmshapmatlut_invert(jas_cmshapmatlut_t *invlut,
|
|
jas_cmshapmatlut_t *lut, int n)
|
|
{
|
|
int i;
|
|
int j;
|
|
int k;
|
|
jas_cmreal_t ax;
|
|
jas_cmreal_t ay;
|
|
jas_cmreal_t bx;
|
|
jas_cmreal_t by;
|
|
jas_cmreal_t sx;
|
|
jas_cmreal_t sy;
|
|
assert(n >= 2);
|
|
if (invlut->data) {
|
|
jas_free(invlut->data);
|
|
invlut->data = 0;
|
|
}
|
|
/* The sample values should be nondecreasing. */
|
|
for (i = 1; i < lut->size; ++i) {
|
|
if (lut->data[i - 1] > lut->data[i]) {
|
|
assert(0);
|
|
return -1;
|
|
}
|
|
}
|
|
if (!(invlut->data = jas_alloc2(n, sizeof(jas_cmreal_t))))
|
|
return -1;
|
|
invlut->size = n;
|
|
for (i = 0; i < invlut->size; ++i) {
|
|
sy = ((double) i) / (invlut->size - 1);
|
|
sx = 1.0;
|
|
for (j = 0; j < lut->size; ++j) {
|
|
ay = lut->data[j];
|
|
if (sy == ay) {
|
|
for (k = j + 1; k < lut->size; ++k) {
|
|
by = lut->data[k];
|
|
if (by != sy)
|
|
break;
|
|
#if 0
|
|
assert(0);
|
|
#endif
|
|
}
|
|
if (k < lut->size) {
|
|
--k;
|
|
ax = ((double) j) / (lut->size - 1);
|
|
bx = ((double) k) / (lut->size - 1);
|
|
sx = (ax + bx) / 2.0;
|
|
}
|
|
break;
|
|
}
|
|
if (j < lut->size - 1) {
|
|
by = lut->data[j + 1];
|
|
if (sy > ay && sy < by) {
|
|
ax = ((double) j) / (lut->size - 1);
|
|
bx = ((double) j + 1) / (lut->size - 1);
|
|
sx = ax +
|
|
(sy - ay) / (by - ay) * (bx - ax);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
invlut->data[i] = sx;
|
|
}
|
|
#if 0
|
|
for (i=0;i<lut->size;++i)
|
|
jas_eprintf("lut[%d]=%f ", i, lut->data[i]);
|
|
for (i=0;i<invlut->size;++i)
|
|
jas_eprintf("invlut[%d]=%f ", i, invlut->data[i]);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
static int jas_cmshapmat_invmat(jas_cmreal_t out[3][4], jas_cmreal_t in[3][4])
|
|
{
|
|
jas_cmreal_t d;
|
|
d = in[0][0] * (in[1][1] * in[2][2] - in[1][2] * in[2][1])
|
|
- in[0][1] * (in[1][0] * in[2][2] - in[1][2] * in[2][0])
|
|
+ in[0][2] * (in[1][0] * in[2][1] - in[1][1] * in[2][0]);
|
|
#if 0
|
|
jas_eprintf("delta=%f\n", d);
|
|
#endif
|
|
if (JAS_ABS(d) < 1e-6)
|
|
return -1;
|
|
out[0][0] = (in[1][1] * in[2][2] - in[1][2] * in[2][1]) / d;
|
|
out[1][0] = -(in[1][0] * in[2][2] - in[1][2] * in[2][0]) / d;
|
|
out[2][0] = (in[1][0] * in[2][1] - in[1][1] * in[2][0]) / d;
|
|
out[0][1] = -(in[0][1] * in[2][2] - in[0][2] * in[2][1]) / d;
|
|
out[1][1] = (in[0][0] * in[2][2] - in[0][2] * in[2][0]) / d;
|
|
out[2][1] = -(in[0][0] * in[2][1] - in[0][1] * in[2][0]) / d;
|
|
out[0][2] = (in[0][1] * in[1][2] - in[0][2] * in[1][1]) / d;
|
|
out[1][2] = -(in[0][0] * in[1][2] - in[1][0] * in[0][2]) / d;
|
|
out[2][2] = (in[0][0] * in[1][1] - in[0][1] * in[1][0]) / d;
|
|
out[0][3] = -in[0][3];
|
|
out[1][3] = -in[1][3];
|
|
out[2][3] = -in[2][3];
|
|
#if 0
|
|
jas_eprintf("[ %f %f %f %f ]\n[ %f %f %f %f ]\n[ %f %f %f %f ]\n",
|
|
in[0][0], in[0][1], in[0][2], in[0][3],
|
|
in[1][0], in[1][1], in[1][2], in[1][3],
|
|
in[2][0], in[2][1], in[2][2], in[2][3]);
|
|
jas_eprintf("[ %f %f %f %f ]\n[ %f %f %f %f ]\n[ %f %f %f %f ]\n",
|
|
out[0][0], out[0][1], out[0][2], out[0][3],
|
|
out[1][0], out[1][1], out[1][2], out[1][3],
|
|
out[2][0], out[2][1], out[2][2], out[2][3]);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/******************************************************************************\
|
|
*
|
|
\******************************************************************************/
|
|
|
|
static int icctoclrspc(int iccclrspc, int refflag)
|
|
{
|
|
if (refflag) {
|
|
switch (iccclrspc) {
|
|
case JAS_ICC_COLORSPC_XYZ:
|
|
return JAS_CLRSPC_CIEXYZ;
|
|
case JAS_ICC_COLORSPC_LAB:
|
|
return JAS_CLRSPC_CIELAB;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
} else {
|
|
switch (iccclrspc) {
|
|
case JAS_ICC_COLORSPC_YCBCR:
|
|
return JAS_CLRSPC_GENYCBCR;
|
|
case JAS_ICC_COLORSPC_RGB:
|
|
return JAS_CLRSPC_GENRGB;
|
|
case JAS_ICC_COLORSPC_GRAY:
|
|
return JAS_CLRSPC_GENGRAY;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int mono(jas_iccprof_t *iccprof, int op, jas_cmpxformseq_t **retpxformseq)
|
|
{
|
|
jas_iccattrval_t *graytrc;
|
|
jas_cmshapmat_t *shapmat;
|
|
jas_cmpxform_t *pxform;
|
|
jas_cmpxformseq_t *pxformseq;
|
|
jas_cmshapmatlut_t lut;
|
|
|
|
jas_cmshapmatlut_init(&lut);
|
|
if (!(graytrc = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_GRYTRC)) ||
|
|
graytrc->type != JAS_ICC_TYPE_CURV)
|
|
goto error;
|
|
if (!(pxform = jas_cmpxform_createshapmat()))
|
|
goto error;
|
|
shapmat = &pxform->data.shapmat;
|
|
if (!(pxformseq = jas_cmpxformseq_create()))
|
|
goto error;
|
|
if (jas_cmpxformseq_insertpxform(pxformseq, -1, pxform))
|
|
goto error;
|
|
|
|
pxform->numinchans = 1;
|
|
pxform->numoutchans = 3;
|
|
|
|
shapmat->mono = 1;
|
|
shapmat->useluts = 1;
|
|
shapmat->usemat = 1;
|
|
if (!op) {
|
|
shapmat->order = 0;
|
|
shapmat->mat[0][0] = 0.9642;
|
|
shapmat->mat[1][0] = 1.0;
|
|
shapmat->mat[2][0] = 0.8249;
|
|
if (jas_cmshapmatlut_set(&shapmat->luts[0], &graytrc->data.curv))
|
|
goto error;
|
|
} else {
|
|
shapmat->order = 1;
|
|
shapmat->mat[0][0] = 1.0 / 0.9642;
|
|
shapmat->mat[1][0] = 1.0;
|
|
shapmat->mat[2][0] = 1.0 / 0.8249;
|
|
jas_cmshapmatlut_init(&lut);
|
|
if (jas_cmshapmatlut_set(&lut, &graytrc->data.curv))
|
|
goto error;
|
|
if (jas_cmshapmatlut_invert(&shapmat->luts[0], &lut, lut.size))
|
|
goto error;
|
|
jas_cmshapmatlut_cleanup(&lut);
|
|
}
|
|
jas_iccattrval_destroy(graytrc);
|
|
jas_cmpxform_destroy(pxform);
|
|
*retpxformseq = pxformseq;
|
|
return 0;
|
|
error:
|
|
return -1;
|
|
}
|
|
|
|
static int triclr(jas_iccprof_t *iccprof, int op, jas_cmpxformseq_t **retpxformseq)
|
|
{
|
|
int i;
|
|
jas_iccattrval_t *trcs[3];
|
|
jas_iccattrval_t *cols[3];
|
|
jas_cmshapmat_t *shapmat;
|
|
jas_cmpxform_t *pxform;
|
|
jas_cmpxformseq_t *pxformseq;
|
|
jas_cmreal_t mat[3][4];
|
|
jas_cmshapmatlut_t lut;
|
|
|
|
pxform = 0;
|
|
pxformseq = 0;
|
|
for (i = 0; i < 3; ++i) {
|
|
trcs[i] = 0;
|
|
cols[i] = 0;
|
|
}
|
|
jas_cmshapmatlut_init(&lut);
|
|
|
|
if (!(trcs[0] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_REDTRC)) ||
|
|
!(trcs[1] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_GRNTRC)) ||
|
|
!(trcs[2] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_BLUTRC)) ||
|
|
!(cols[0] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_REDMATCOL)) ||
|
|
!(cols[1] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_GRNMATCOL)) ||
|
|
!(cols[2] = jas_iccprof_getattr(iccprof, JAS_ICC_TAG_BLUMATCOL)))
|
|
goto error;
|
|
for (i = 0; i < 3; ++i) {
|
|
if (trcs[i]->type != JAS_ICC_TYPE_CURV ||
|
|
cols[i]->type != JAS_ICC_TYPE_XYZ)
|
|
goto error;
|
|
}
|
|
if (!(pxform = jas_cmpxform_createshapmat()))
|
|
goto error;
|
|
pxform->numinchans = 3;
|
|
pxform->numoutchans = 3;
|
|
shapmat = &pxform->data.shapmat;
|
|
if (!(pxformseq = jas_cmpxformseq_create()))
|
|
goto error;
|
|
if (jas_cmpxformseq_insertpxform(pxformseq, -1, pxform))
|
|
goto error;
|
|
shapmat->mono = 0;
|
|
shapmat->useluts = 1;
|
|
shapmat->usemat = 1;
|
|
if (!op) {
|
|
shapmat->order = 0;
|
|
for (i = 0; i < 3; ++i) {
|
|
shapmat->mat[0][i] = cols[i]->data.xyz.x / 65536.0;
|
|
shapmat->mat[1][i] = cols[i]->data.xyz.y / 65536.0;
|
|
shapmat->mat[2][i] = cols[i]->data.xyz.z / 65536.0;
|
|
}
|
|
for (i = 0; i < 3; ++i)
|
|
shapmat->mat[i][3] = 0.0;
|
|
for (i = 0; i < 3; ++i) {
|
|
if (jas_cmshapmatlut_set(&shapmat->luts[i], &trcs[i]->data.curv))
|
|
goto error;
|
|
}
|
|
} else {
|
|
shapmat->order = 1;
|
|
for (i = 0; i < 3; ++i) {
|
|
mat[0][i] = cols[i]->data.xyz.x / 65536.0;
|
|
mat[1][i] = cols[i]->data.xyz.y / 65536.0;
|
|
mat[2][i] = cols[i]->data.xyz.z / 65536.0;
|
|
}
|
|
for (i = 0; i < 3; ++i)
|
|
mat[i][3] = 0.0;
|
|
if (jas_cmshapmat_invmat(shapmat->mat, mat))
|
|
goto error;
|
|
for (i = 0; i < 3; ++i) {
|
|
jas_cmshapmatlut_init(&lut);
|
|
if (jas_cmshapmatlut_set(&lut, &trcs[i]->data.curv))
|
|
goto error;
|
|
if (jas_cmshapmatlut_invert(&shapmat->luts[i], &lut, lut.size))
|
|
goto error;
|
|
jas_cmshapmatlut_cleanup(&lut);
|
|
}
|
|
}
|
|
for (i = 0; i < 3; ++i) {
|
|
jas_iccattrval_destroy(trcs[i]);
|
|
jas_iccattrval_destroy(cols[i]);
|
|
}
|
|
jas_cmpxform_destroy(pxform);
|
|
*retpxformseq = pxformseq;
|
|
return 0;
|
|
|
|
error:
|
|
|
|
for (i = 0; i < 3; ++i) {
|
|
if (trcs[i]) {
|
|
jas_iccattrval_destroy(trcs[i]);
|
|
}
|
|
if (cols[i]) {
|
|
jas_iccattrval_destroy(cols[i]);
|
|
}
|
|
}
|
|
if (pxformseq) {
|
|
jas_cmpxformseq_destroy(pxformseq);
|
|
}
|
|
if (pxform) {
|
|
jas_cmpxform_destroy(pxform);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static int jas_cmgetint(long **bufptr, int sgnd, int prec, long *val)
|
|
{
|
|
long v;
|
|
int m;
|
|
v = **bufptr;
|
|
if (sgnd) {
|
|
m = (1 << (prec - 1));
|
|
if (v < -m || v >= m)
|
|
return -1;
|
|
} else {
|
|
if (v < 0 || v >= (1 << prec))
|
|
return -1;
|
|
}
|
|
++(*bufptr);
|
|
*val = v;
|
|
return 0;
|
|
}
|
|
|
|
static int jas_cmputint(long **bufptr, int sgnd, int prec, long val)
|
|
{
|
|
int m;
|
|
if (sgnd) {
|
|
m = (1 << (prec - 1));
|
|
if (val < -m || val >= m)
|
|
return -1;
|
|
} else {
|
|
if (val < 0 || val >= (1 << prec))
|
|
return -1;
|
|
}
|
|
**bufptr = val;
|
|
++(*bufptr);
|
|
return 0;
|
|
}
|
|
|
|
int jas_clrspc_numchans(int clrspc)
|
|
{
|
|
switch (jas_clrspc_fam(clrspc)) {
|
|
case JAS_CLRSPC_FAM_XYZ:
|
|
case JAS_CLRSPC_FAM_LAB:
|
|
case JAS_CLRSPC_FAM_RGB:
|
|
case JAS_CLRSPC_FAM_YCBCR:
|
|
return 3;
|
|
break;
|
|
case JAS_CLRSPC_FAM_GRAY:
|
|
return 1;
|
|
break;
|
|
default:
|
|
abort();
|
|
break;
|
|
}
|
|
}
|
|
|
|
jas_iccprof_t *jas_iccprof_createfromcmprof(jas_cmprof_t *prof)
|
|
{
|
|
return jas_iccprof_copy(prof->iccprof);
|
|
}
|