jas_icc.c

自主研发的一种电子文档格式。也算是多年技术的积累吧。 系统主要包含虚拟驱动和浏览器

/*
 * Copyright (c) 2002-2003 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__
 */

#include <assert.h>
#include <jasper/jas_config.h>
#include <jasper/jas_types.h>
#include <jasper/jas_malloc.h>
#include <jasper/jas_debug.h>
#include <jasper/jas_icc.h>
#include <jasper/jas_cm.h>
#include <jasper/jas_stream.h>
#include <jasper/jas_string.h>

#include <stdlib.h>
#include <ctype.h>

#define	jas_iccputuint8(out, val)	jas_iccputuint(out, 1, val)
#define	jas_iccputuint16(out, val)	jas_iccputuint(out, 2, val)
#define	jas_iccputsint32(out, val)	jas_iccputsint(out, 4, val)
#define	jas_iccputuint32(out, val)	jas_iccputuint(out, 4, val)
#define	jas_iccputuint64(out, val)	jas_iccputuint(out, 8, val)

static jas_iccattrval_t *jas_iccattrval_create0(void);

static int jas_iccgetuint(jas_stream_t *in, int n, ulonglong *val);
static int jas_iccgetuint8(jas_stream_t *in, jas_iccuint8_t *val);
static int jas_iccgetuint16(jas_stream_t *in, jas_iccuint16_t *val);
static int jas_iccgetsint32(jas_stream_t *in, jas_iccsint32_t *val);
static int jas_iccgetuint32(jas_stream_t *in, jas_iccuint32_t *val);
static int jas_iccgetuint64(jas_stream_t *in, jas_iccuint64_t *val);
static int jas_iccputuint(jas_stream_t *out, int n, ulonglong val);
static int jas_iccputsint(jas_stream_t *out, int n, longlong val);
static jas_iccprof_t *jas_iccprof_create(void);
static int jas_iccprof_readhdr(jas_stream_t *in, jas_icchdr_t *hdr);
static int jas_iccprof_writehdr(jas_stream_t *out, jas_icchdr_t *hdr);
static int jas_iccprof_gettagtab(jas_stream_t *in, jas_icctagtab_t *tagtab);
static void jas_iccprof_sorttagtab(jas_icctagtab_t *tagtab);
static int jas_iccattrtab_lookup(jas_iccattrtab_t *attrtab, jas_iccuint32_t name);
static jas_iccattrtab_t *jas_iccattrtab_copy(jas_iccattrtab_t *attrtab);
static jas_iccattrvalinfo_t *jas_iccattrvalinfo_lookup(jas_iccsig_t name);
static int jas_iccgettime(jas_stream_t *in, jas_icctime_t *time);
static int jas_iccgetxyz(jas_stream_t *in, jas_iccxyz_t *xyz);
static int jas_icctagtabent_cmp(const void *src, const void *dst);

static void jas_icccurv_destroy(jas_iccattrval_t *attrval);
static int jas_icccurv_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icccurv_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icccurv_getsize(jas_iccattrval_t *attrval);
static int jas_icccurv_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icccurv_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icctxtdesc_destroy(jas_iccattrval_t *attrval);
static int jas_icctxtdesc_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icctxtdesc_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icctxtdesc_getsize(jas_iccattrval_t *attrval);
static int jas_icctxtdesc_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icctxtdesc_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icctxt_destroy(jas_iccattrval_t *attrval);
static int jas_icctxt_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icctxt_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icctxt_getsize(jas_iccattrval_t *attrval);
static int jas_icctxt_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icctxt_dump(jas_iccattrval_t *attrval, FILE *out);

static int jas_iccxyz_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_iccxyz_getsize(jas_iccattrval_t *attrval);
static int jas_iccxyz_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_iccxyz_dump(jas_iccattrval_t *attrval, FILE *out);

static jas_iccattrtab_t *jas_iccattrtab_create(void);
static void jas_iccattrtab_destroy(jas_iccattrtab_t *tab);
static int jas_iccattrtab_resize(jas_iccattrtab_t *tab, int maxents);
static int jas_iccattrtab_add(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val);
static int jas_iccattrtab_replace(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val);
static void jas_iccattrtab_delete(jas_iccattrtab_t *attrtab, int i);
static long jas_iccpadtomult(long x, long y);
static int jas_iccattrtab_get(jas_iccattrtab_t *attrtab, int i,
  jas_iccattrname_t *name, jas_iccattrval_t **val);
static int jas_iccprof_puttagtab(jas_stream_t *out, jas_icctagtab_t *tagtab);

static void jas_icclut16_destroy(jas_iccattrval_t *attrval);
static int jas_icclut16_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icclut16_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icclut16_getsize(jas_iccattrval_t *attrval);
static int jas_icclut16_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icclut16_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icclut8_destroy(jas_iccattrval_t *attrval);
static int jas_icclut8_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icclut8_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icclut8_getsize(jas_iccattrval_t *attrval);
static int jas_icclut8_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icclut8_dump(jas_iccattrval_t *attrval, FILE *out);

static int jas_iccputtime(jas_stream_t *out, jas_icctime_t *ctime);
static int jas_iccputxyz(jas_stream_t *out, jas_iccxyz_t *xyz);

static long jas_iccpowi(int x, int n);

static char *jas_iccsigtostr(int sig, char *buf);


jas_iccattrvalinfo_t jas_iccattrvalinfos[] = {
	{JAS_ICC_TYPE_CURV, {jas_icccurv_destroy, jas_icccurv_copy,
	  jas_icccurv_input, jas_icccurv_output, jas_icccurv_getsize,
	  jas_icccurv_dump}},
	{JAS_ICC_TYPE_XYZ, {0, 0, jas_iccxyz_input, jas_iccxyz_output,
	  jas_iccxyz_getsize, jas_iccxyz_dump}},
	{JAS_ICC_TYPE_TXTDESC, {jas_icctxtdesc_destroy,
	  jas_icctxtdesc_copy, jas_icctxtdesc_input, jas_icctxtdesc_output,
	  jas_icctxtdesc_getsize, jas_icctxtdesc_dump}},
	{JAS_ICC_TYPE_TXT, {jas_icctxt_destroy, jas_icctxt_copy,
	  jas_icctxt_input, jas_icctxt_output, jas_icctxt_getsize,
	  jas_icctxt_dump}},
	{JAS_ICC_TYPE_LUT8, {jas_icclut8_destroy, jas_icclut8_copy,
	  jas_icclut8_input, jas_icclut8_output, jas_icclut8_getsize,
	  jas_icclut8_dump}},
	{JAS_ICC_TYPE_LUT16, {jas_icclut16_destroy, jas_icclut16_copy,
	  jas_icclut16_input, jas_icclut16_output, jas_icclut16_getsize,
	  jas_icclut16_dump}},
	{0, {0, 0, 0, 0, 0, 0}}
};

typedef struct {
	jas_iccuint32_t tag;
	char *name;
} jas_icctaginfo_t;

/******************************************************************************\
* profile class
\******************************************************************************/

static jas_iccprof_t *jas_iccprof_create()
{
	jas_iccprof_t *prof;
	prof = 0;
	if (!(prof = jas_malloc(sizeof(jas_iccprof_t)))) {
		goto error;
	}
	if (!(prof->attrtab = jas_iccattrtab_create()))
		goto error;
	memset(&prof->hdr, 0, sizeof(jas_icchdr_t));
	prof->tagtab.numents = 0;
	prof->tagtab.ents = 0;
	return prof;
error:
	if (prof)
		jas_iccprof_destroy(prof);
	return 0;
}

jas_iccprof_t *jas_iccprof_copy(jas_iccprof_t *prof)
{
	jas_iccprof_t *newprof;
	newprof = 0;
	if (!(newprof = jas_iccprof_create()))
		goto error;
	newprof->hdr = prof->hdr;
	newprof->tagtab.numents = 0;
	newprof->tagtab.ents = 0;
	assert(newprof->attrtab);
	jas_iccattrtab_destroy(newprof->attrtab);
	if (!(newprof->attrtab = jas_iccattrtab_copy(prof->attrtab)))
		goto error;
	return newprof;
error:
	if (newprof)
		jas_iccprof_destroy(newprof);
	return 0;
}

void jas_iccprof_destroy(jas_iccprof_t *prof)
{
	if (prof->attrtab)
		jas_iccattrtab_destroy(prof->attrtab);
	if (prof->tagtab.ents)
		jas_free(prof->tagtab.ents);
	jas_free(prof);
}

void jas_iccprof_dump(jas_iccprof_t *prof, FILE *out)
{
	jas_iccattrtab_dump(prof->attrtab, out);
}

jas_iccprof_t *jas_iccprof_load(jas_stream_t *in)
{
	jas_iccprof_t *prof;
	int numtags;
	long curoff;
	long reloff;
	long prevoff;
	jas_iccsig_t type;
	jas_iccattrval_t *attrval;
	jas_iccattrval_t *prevattrval;
	jas_icctagtabent_t *tagtabent;
	jas_iccattrvalinfo_t *attrvalinfo;
	int i;
	int len;

	prof = 0;
	attrval = 0;

	if (!(prof = jas_iccprof_create())) {
		goto error;
	}

	if (jas_iccprof_readhdr(in, &prof->hdr)) {
		jas_eprintf("cannot get header\n");
		goto error;
	}
	if (jas_iccprof_gettagtab(in, &prof->tagtab)) {
		jas_eprintf("cannot get tab table\n");
		goto error;
	}
	jas_iccprof_sorttagtab(&prof->tagtab);

	numtags = prof->tagtab.numents;
	curoff = JAS_ICC_HDRLEN + 4 + 12 * numtags;
	prevoff = 0;
	prevattrval = 0;
	for (i = 0; i < numtags; ++i) {
		tagtabent = &prof->tagtab.ents[i];
		if (tagtabent->off == JAS_CAST(jas_iccuint32_t, prevoff)) {
			if (prevattrval) {
				if (!(attrval = jas_iccattrval_clone(prevattrval)))
					goto error;
				if (jas_iccprof_setattr(prof, tagtabent->tag, attrval))
					goto error;
				jas_iccattrval_destroy(attrval);
			} else {
#if 0
				jas_eprintf("warning: skipping unknown tag type\n");
#endif
			}
			continue;
		}
		reloff = tagtabent->off - curoff;
		if (reloff > 0) {
			if (jas_stream_gobble(in, reloff) != reloff)
				goto error;
			curoff += reloff;
		} else if (reloff < 0) {
			/* This should never happen since we read the tagged
			element data in a single pass. */
			abort();
		}
		prevoff = curoff;
		if (jas_iccgetuint32(in, &type)) {
			goto error;
		}
		if (jas_stream_gobble(in, 4) != 4) {
			goto error;
		}
		curoff += 8;
		if (!(attrvalinfo = jas_iccattrvalinfo_lookup(type))) {
#if 0
			jas_eprintf("warning: skipping unknown tag type\n");
#endif
			prevattrval = 0;
			continue;
		}
		if (!(attrval = jas_iccattrval_create(type))) {
			goto error;
		}
		len = tagtabent->len - 8;
		if ((*attrval->ops->input)(attrval, in, len)) {
			goto error;
		}
		curoff += len;
		if (jas_iccprof_setattr(prof, tagtabent->tag, attrval)) {
			goto error;
		}
		prevattrval = attrval; /* This is correct, but slimey. */
		jas_iccattrval_destroy(attrval);
		attrval = 0;
	}

	return prof;

error:
	if (prof)
		jas_iccprof_destroy(prof);
	if (attrval)
		jas_iccattrval_destroy(attrval);
	return 0;
}

int jas_iccprof_save(jas_iccprof_t *prof, jas_stream_t *out)
{
	long curoff;
	long reloff;
	long newoff;
	int i;
	int j;
	jas_icctagtabent_t *tagtabent;
	jas_icctagtabent_t *sharedtagtabent;
	jas_icctagtabent_t *tmptagtabent;
	jas_iccuint32_t attrname;
	jas_iccattrval_t *attrval;
	jas_icctagtab_t *tagtab;

	tagtab = &prof->tagtab;
	if (!(tagtab->ents = jas_malloc(prof->attrtab->numattrs *
	  sizeof(jas_icctagtabent_t))))
		goto error;
	tagtab->numents = prof->attrtab->numattrs;
	curoff = JAS_ICC_HDRLEN + 4 + 12 * tagtab->numents;
	for (i = 0; i < JAS_CAST(int, tagtab->numents); ++i) {
		tagtabent = &tagtab->ents[i];
		if (jas_iccattrtab_get(prof->attrtab, i, &attrname, &attrval))
			goto error;
		assert(attrval->ops->output);
		tagtabent->tag = attrname;
		tagtabent->data = &attrval->data;
		sharedtagtabent = 0;
		for (j = 0; j < i; ++j) {
			tmptagtabent = &tagtab->ents[j];
			if (tagtabent->data == tmptagtabent->data) {
				sharedtagtabent = tmptagtabent;
				break;
			}
		}
		if (sharedtagtabent) {
			tagtabent->off = sharedtagtabent->off;
			tagtabent->len = sharedtagtabent->len;
			tagtabent->first = sharedtagtabent;
		} else {
			tagtabent->off = curoff;
			tagtabent->len = (*attrval->ops->getsize)(attrval) + 8;
			tagtabent->first = 0;
			if (i < JAS_CAST(int, tagtab->numents - 1)) {
				curoff = jas_iccpadtomult(curoff + tagtabent->len, 4);
			} else {
				curoff += tagtabent->len;
			}
		}
		jas_iccattrval_destroy(attrval);
	}
	prof->hdr.size = curoff;
	if (jas_iccprof_writehdr(out, &prof->hdr))
		goto error;
	if (jas_iccprof_puttagtab(out, &prof->tagtab))
		goto error;
	curoff = JAS_ICC_HDRLEN + 4 + 12 * tagtab->numents;
	for (i = 0; i < JAS_CAST(int, tagtab->numents);) {
		tagtabent = &tagtab->ents[i];
		assert(curoff == JAS_CAST(long, tagtabent->off));
		if (jas_iccattrtab_get(prof->attrtab, i, &attrname, &attrval))
			goto error;
		if (jas_iccputuint32(out, attrval->type) || jas_stream_pad(out,
		  4, 0) != 4)
			goto error;
		if ((*attrval->ops->output)(attrval, out))
			goto error;
		jas_iccattrval_destroy(attrval);
		curoff += tagtabent->len;
		++i;
		while (i < JAS_CAST(int, tagtab->numents) &&