diff options
Diffstat (limited to 'lcms2mt/utils/jpgicc')
| -rwxr-xr-x | lcms2mt/utils/jpgicc/LICENSE_iccjpeg | 67 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/Makefile.am | 22 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/Makefile.in | 739 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/iccjpeg.c | 248 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/iccjpeg.h | 73 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/jpgicc.1 | 122 | ||||
| -rw-r--r-- | lcms2mt/utils/jpgicc/jpgicc.c | 1263 |
7 files changed, 2534 insertions, 0 deletions
diff --git a/lcms2mt/utils/jpgicc/LICENSE_iccjpeg b/lcms2mt/utils/jpgicc/LICENSE_iccjpeg new file mode 100755 index 000000000..b77d4cbff --- /dev/null +++ b/lcms2mt/utils/jpgicc/LICENSE_iccjpeg @@ -0,0 +1,67 @@ + +THIS LICENSE APPLIES ONLY TO iccjpeg.c file +----- +In plain English: + +1. We don't promise that this software works. (But if you find any bugs, + please let us know!) +2. You can use this software for whatever you want. You don't have to pay us. +3. You may not pretend that you wrote this software. If you use it in a + program, you must acknowledge somewhere in your documentation that + you've used the IJG code. + +In legalese: + +The authors make NO WARRANTY or representation, either express or implied, +with respect to this software, its quality, accuracy, merchantability, or +fitness for a particular purpose. This software is provided "AS IS", and you, +its user, assume the entire risk as to its quality and accuracy. + +This software is copyright (C) 1991-2013, Thomas G. Lane, Guido Vollbeding. +All Rights Reserved except as specified below. + +Permission is hereby granted to use, copy, modify, and distribute this +software (or portions thereof) for any purpose, without fee, subject to these +conditions: +(1) If any part of the source code for this software is distributed, then this +README file must be included, with this copyright and no-warranty notice +unaltered; and any additions, deletions, or changes to the original files +must be clearly indicated in accompanying documentation. +(2) If only executable code is distributed, then the accompanying +documentation must state that "this software is based in part on the work of +the Independent JPEG Group". +(3) Permission for use of this software is granted only if the user accepts +full responsibility for any undesirable consequences; the authors accept +NO LIABILITY for damages of any kind. + +These conditions apply to any software derived from or based on the IJG code, +not just to the unmodified library. If you use our work, you ought to +acknowledge us. + +Permission is NOT granted for the use of any IJG author's name or company name +in advertising or publicity relating to this software or products derived from +it. This software may be referred to only as "the Independent JPEG Group's +software". + +We specifically permit and encourage the use of this software as the basis of +commercial products, provided that all warranty or liability claims are +assumed by the product vendor. + + +The Unix configuration script "configure" was produced with GNU Autoconf. +It is copyright by the Free Software Foundation but is freely distributable. +The same holds for its supporting scripts (config.guess, config.sub, +ltmain.sh). Another support script, install-sh, is copyright by X Consortium +but is also freely distributable. + +The IJG distribution formerly included code to read and write GIF files. +To avoid entanglement with the Unisys LZW patent, GIF reading support has +been removed altogether, and the GIF writer has been simplified to produce +"uncompressed GIFs". This technique does not use the LZW algorithm; the +resulting GIF files are larger than usual, but are readable by all standard +GIF decoders. + +We are required to state that + "The Graphics Interchange Format(c) is the Copyright property of + CompuServe Incorporated. GIF(sm) is a Service Mark property of + CompuServe Incorporated." diff --git a/lcms2mt/utils/jpgicc/Makefile.am b/lcms2mt/utils/jpgicc/Makefile.am new file mode 100644 index 000000000..d0a0897f3 --- /dev/null +++ b/lcms2mt/utils/jpgicc/Makefile.am @@ -0,0 +1,22 @@ +# +# Makefile for building jpegicc +# Written by Bob Friesenhahn, June 2003 +# Bugs introduced by Marti Maria on October 2004 + +# Don't require all the GNU mandated files +AUTOMAKE_OPTIONS = 1.7 foreign no-dependencies + +AM_CPPFLAGS = -I$(top_builddir)/include -I$(top_srcdir)/include \ + -I$(top_srcdir)/utils/common -I$(top_builddir)/utils/common +if HasJPEG +bin_PROGRAMS = jpgicc +else +bin_PROGRAMS = +endif + +jpgicc_LDADD = $(top_builddir)/src/liblcms2.la @JPEGICC_DEPLIBS@ +jpgicc_LDFLAGS = @LDFLAGS@ +jpgicc_SOURCES = jpgicc.c iccjpeg.c ../common/xgetopt.c ../common/vprf.c ../common/utils.h +man_MANS = jpgicc.1 + +EXTRA_DIST = iccjpeg.h $(man_MANS) diff --git a/lcms2mt/utils/jpgicc/Makefile.in b/lcms2mt/utils/jpgicc/Makefile.in new file mode 100644 index 000000000..69032832d --- /dev/null +++ b/lcms2mt/utils/jpgicc/Makefile.in @@ -0,0 +1,739 @@ +# Makefile.in generated by automake 1.15 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2014 Free Software Foundation, Inc. + +# This Makefile.in is free software; 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The ICC has + * defined a standard format for including such data in JPEG "APP2" markers. + * The code given here does not know anything about the internal structure + * of the ICC profile data; it just knows how to put the profile data into + * a JPEG file being written, or get it back out when reading. + * + * This code depends on new features added to the IJG JPEG library as of + * IJG release 6b; it will not compile or work with older IJG versions. + * + * NOTE: this code would need surgery to work on 16-bit-int machines + * with ICC profiles exceeding 64K bytes in size. If you need to do that, + * change all the "unsigned int" variables to "INT32". You'll also need + * to find a malloc() replacement that can allocate more than 64K. + */ + +#include "iccjpeg.h" +#include <stdlib.h> /* define malloc() */ + + +/* + * Since an ICC profile can be larger than the maximum size of a JPEG marker + * (64K), we need provisions to split it into multiple markers. The format + * defined by the ICC specifies one or more APP2 markers containing the + * following data: + * Identifying string ASCII "ICC_PROFILE\0" (12 bytes) + * Marker sequence number 1 for first APP2, 2 for next, etc (1 byte) + * Number of markers Total number of APP2's used (1 byte) + * Profile data (remainder of APP2 data) + * Decoders should use the marker sequence numbers to reassemble the profile, + * rather than assuming that the APP2 markers appear in the correct sequence. + */ + +#define ICC_MARKER (JPEG_APP0 + 2) /* JPEG marker code for ICC */ +#define ICC_OVERHEAD_LEN 14 /* size of non-profile data in APP2 */ +#define MAX_BYTES_IN_MARKER 65533 /* maximum data len of a JPEG marker */ +#define MAX_DATA_BYTES_IN_MARKER (MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN) + + +/* + * This routine writes the given ICC profile data into a JPEG file. + * It *must* be called AFTER calling jpeg_start_compress() and BEFORE + * the first call to jpeg_write_scanlines(). + * (This ordering ensures that the APP2 marker(s) will appear after the + * SOI and JFIF or Adobe markers, but before all else.) + */ + +void +write_icc_profile (j_compress_ptr cinfo, + const JOCTET *icc_data_ptr, + unsigned int icc_data_len) +{ + unsigned int num_markers; /* total number of markers we'll write */ + int cur_marker = 1; /* per spec, counting starts at 1 */ + unsigned int length; /* number of bytes to write in this marker */ + + /* Calculate the number of markers we'll need, rounding up of course */ + num_markers = icc_data_len / MAX_DATA_BYTES_IN_MARKER; + if (num_markers * MAX_DATA_BYTES_IN_MARKER != icc_data_len) + num_markers++; + + while (icc_data_len > 0) { + /* length of profile to put in this marker */ + length = icc_data_len; + if (length > MAX_DATA_BYTES_IN_MARKER) + length = MAX_DATA_BYTES_IN_MARKER; + icc_data_len -= length; + + /* Write the JPEG marker header (APP2 code and marker length) */ + jpeg_write_m_header(cinfo, ICC_MARKER, + (unsigned int) (length + ICC_OVERHEAD_LEN)); + + /* Write the marker identifying string "ICC_PROFILE" (null-terminated). + * We code it in this less-than-transparent way so that the code works + * even if the local character set is not ASCII. + */ + jpeg_write_m_byte(cinfo, 0x49); + jpeg_write_m_byte(cinfo, 0x43); + jpeg_write_m_byte(cinfo, 0x43); + jpeg_write_m_byte(cinfo, 0x5F); + jpeg_write_m_byte(cinfo, 0x50); + jpeg_write_m_byte(cinfo, 0x52); + jpeg_write_m_byte(cinfo, 0x4F); + jpeg_write_m_byte(cinfo, 0x46); + jpeg_write_m_byte(cinfo, 0x49); + jpeg_write_m_byte(cinfo, 0x4C); + jpeg_write_m_byte(cinfo, 0x45); + jpeg_write_m_byte(cinfo, 0x0); + + /* Add the sequencing info */ + jpeg_write_m_byte(cinfo, cur_marker); + jpeg_write_m_byte(cinfo, (int) num_markers); + + /* Add the profile data */ + while (length--) { + jpeg_write_m_byte(cinfo, *icc_data_ptr); + icc_data_ptr++; + } + cur_marker++; + } +} + + +/* + * Prepare for reading an ICC profile + */ + +void +setup_read_icc_profile (j_decompress_ptr cinfo) +{ + /* Tell the library to keep any APP2 data it may find */ + jpeg_save_markers(cinfo, ICC_MARKER, 0xFFFF); +} + + +/* + * Handy subroutine to test whether a saved marker is an ICC profile marker. + */ + +static boolean +marker_is_icc (jpeg_saved_marker_ptr marker) +{ + return + marker->marker == ICC_MARKER && + marker->data_length >= ICC_OVERHEAD_LEN && + /* verify the identifying string */ + GETJOCTET(marker->data[0]) == 0x49 && + GETJOCTET(marker->data[1]) == 0x43 && + GETJOCTET(marker->data[2]) == 0x43 && + GETJOCTET(marker->data[3]) == 0x5F && + GETJOCTET(marker->data[4]) == 0x50 && + GETJOCTET(marker->data[5]) == 0x52 && + GETJOCTET(marker->data[6]) == 0x4F && + GETJOCTET(marker->data[7]) == 0x46 && + GETJOCTET(marker->data[8]) == 0x49 && + GETJOCTET(marker->data[9]) == 0x4C && + GETJOCTET(marker->data[10]) == 0x45 && + GETJOCTET(marker->data[11]) == 0x0; +} + + +/* + * See if there was an ICC profile in the JPEG file being read; + * if so, reassemble and return the profile data. + * + * TRUE is returned if an ICC profile was found, FALSE if not. + * If TRUE is returned, *icc_data_ptr is set to point to the + * returned data, and *icc_data_len is set to its length. + * + * IMPORTANT: the data at **icc_data_ptr has been allocated with malloc() + * and must be freed by the caller with free() when the caller no longer + * needs it. (Alternatively, we could write this routine to use the + * IJG library's memory allocator, so that the data would be freed implicitly + * at jpeg_finish_decompress() time. But it seems likely that many apps + * will prefer to have the data stick around after decompression finishes.) + * + * NOTE: if the file contains invalid ICC APP2 markers, we just silently + * return FALSE. You might want to issue an error message instead. + */ + +boolean +read_icc_profile (j_decompress_ptr cinfo, + JOCTET **icc_data_ptr, + unsigned int *icc_data_len) +{ + jpeg_saved_marker_ptr marker; + int num_markers = 0; + int seq_no; + JOCTET *icc_data; + unsigned int total_length; +#define MAX_SEQ_NO 255 /* sufficient since marker numbers are bytes */ + char marker_present[MAX_SEQ_NO+1]; /* 1 if marker found */ + unsigned int data_length[MAX_SEQ_NO+1]; /* size of profile data in marker */ + unsigned int data_offset[MAX_SEQ_NO+1]; /* offset for data in marker */ + + *icc_data_ptr = NULL; /* avoid confusion if FALSE return */ + *icc_data_len = 0; + + /* This first pass over the saved markers discovers whether there are + * any ICC markers and verifies the consistency of the marker numbering. + */ + + for (seq_no = 1; seq_no <= MAX_SEQ_NO; seq_no++) + marker_present[seq_no] = 0; + + for (marker = cinfo->marker_list; marker != NULL; marker = marker->next) { + if (marker_is_icc(marker)) { + if (num_markers == 0) + num_markers = GETJOCTET(marker->data[13]); + else if (num_markers != GETJOCTET(marker->data[13])) + return FALSE; /* inconsistent num_markers fields */ + seq_no = GETJOCTET(marker->data[12]); + if (seq_no <= 0 || seq_no > num_markers) + return FALSE; /* bogus sequence number */ + if (marker_present[seq_no]) + return FALSE; /* duplicate sequence numbers */ + marker_present[seq_no] = 1; + data_length[seq_no] = marker->data_length - ICC_OVERHEAD_LEN; + } + } + + if (num_markers == 0) + return FALSE; + + /* Check for missing markers, count total space needed, + * compute offset of each marker's part of the data. + */ + + total_length = 0; + for (seq_no = 1; seq_no <= num_markers; seq_no++) { + if (marker_present[seq_no] == 0) + return FALSE; /* missing sequence number */ + data_offset[seq_no] = total_length; + total_length += data_length[seq_no]; + } + + if (total_length == 0) + return FALSE; /* found only empty markers? */ + + /* Allocate space for assembled data */ + icc_data = (JOCTET *) malloc(total_length * sizeof(JOCTET)); + if (icc_data == NULL) + return FALSE; /* oops, out of memory */ + + /* and fill it in */ + for (marker = cinfo->marker_list; marker != NULL; marker = marker->next) { + if (marker_is_icc(marker)) { + JOCTET FAR *src_ptr; + JOCTET *dst_ptr; + unsigned int length; + seq_no = GETJOCTET(marker->data[12]); + dst_ptr = icc_data + data_offset[seq_no]; + src_ptr = marker->data + ICC_OVERHEAD_LEN; + length = data_length[seq_no]; + while (length--) { + *dst_ptr++ = *src_ptr++; + } + } + } + + *icc_data_ptr = icc_data; + *icc_data_len = total_length; + + return TRUE; +} diff --git a/lcms2mt/utils/jpgicc/iccjpeg.h b/lcms2mt/utils/jpgicc/iccjpeg.h new file mode 100644 index 000000000..5e1888d9e --- /dev/null +++ b/lcms2mt/utils/jpgicc/iccjpeg.h @@ -0,0 +1,73 @@ +/* + * iccprofile.h + * + * This file provides code to read and write International Color Consortium + * (ICC) device profiles embedded in JFIF JPEG image files. The ICC has + * defined a standard format for including such data in JPEG "APP2" markers. + * The code given here does not know anything about the internal structure + * of the ICC profile data; it just knows how to put the profile data into + * a JPEG file being written, or get it back out when reading. + * + * This code depends on new features added to the IJG JPEG library as of + * IJG release 6b; it will not compile or work with older IJG versions. + * + * NOTE: this code would need surgery to work on 16-bit-int machines + * with ICC profiles exceeding 64K bytes in size. See iccprofile.c + * for details. + */ + +#include <stdio.h> /* needed to define "FILE", "NULL" */ +#include "jpeglib.h" + + +/* + * This routine writes the given ICC profile data into a JPEG file. + * It *must* be called AFTER calling jpeg_start_compress() and BEFORE + * the first call to jpeg_write_scanlines(). + * (This ordering ensures that the APP2 marker(s) will appear after the + * SOI and JFIF or Adobe markers, but before all else.) + */ + +extern void write_icc_profile JPP((j_compress_ptr cinfo, + const JOCTET *icc_data_ptr, + unsigned int icc_data_len)); + + +/* + * Reading a JPEG file that may contain an ICC profile requires two steps: + * + * 1. After jpeg_create_decompress() but before jpeg_read_header(), + * call setup_read_icc_profile(). This routine tells the IJG library + * to save in memory any APP2 markers it may find in the file. + * + * 2. After jpeg_read_header(), call read_icc_profile() to find out + * whether there was a profile and obtain it if so. + */ + + +/* + * Prepare for reading an ICC profile + */ + +extern void setup_read_icc_profile JPP((j_decompress_ptr cinfo)); + + +/* + * See if there was an ICC profile in the JPEG file being read; + * if so, reassemble and return the profile data. + * + * TRUE is returned if an ICC profile was found, FALSE if not. + * If TRUE is returned, *icc_data_ptr is set to point to the + * returned data, and *icc_data_len is set to its length. + * + * IMPORTANT: the data at **icc_data_ptr has been allocated with malloc() + * and must be freed by the caller with free() when the caller no longer + * needs it. (Alternatively, we could write this routine to use the + * IJG library's memory allocator, so that the data would be freed implicitly + * at jpeg_finish_decompress() time. But it seems likely that many apps + * will prefer to have the data stick around after decompression finishes.) + */ + +extern boolean read_icc_profile JPP((j_decompress_ptr cinfo, + JOCTET **icc_data_ptr, + unsigned int *icc_data_len)); diff --git a/lcms2mt/utils/jpgicc/jpgicc.1 b/lcms2mt/utils/jpgicc/jpgicc.1 new file mode 100644 index 000000000..44795a38e --- /dev/null +++ b/lcms2mt/utils/jpgicc/jpgicc.1 @@ -0,0 +1,122 @@ +.\"Shiju P. Nair September 30, 2004 +.\"Thomas Weber <tweber@debian.org> April 23, 2014 +.TH JPGICC 1 "September 30, 2004" +.SH NAME +jpgicc - little cms ICC profile applier for JPEG. +.SH SYNOPSIS +.B jpgicc +.RI [ options ] " input.jpg output.jpg" +.SH DESCRIPTION +lcms is a standalone CMM engine, which deals with the color management. +It implements a fast transformation between ICC profiles. +.B jpgicc +is a little cms ICC profile applier for JPEG. +.SH OPTIONS +.TP +.B \-b +Black point compensation. +.TP +.BI \-c\ NUM +Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes) [defaults to 1]. +.TP +.BI \-d\ NUM +Observer adaptation state (abs.col. only), (0..1.0, float value) [defaults to 0.0]. +.TP +.B \-e +Embed destination profile. +.TP +.B \-g +Marks out-of-gamut colors on softproof. +.TP +.BI \-h\ NUM +Show summary of options and examples (0=help, 1=Examples, 2=Built-in profiles, 3=Contact information) +.TP +.BI \-i\ profile +Input profile (defaults to sRGB). +.TP +.BI \-l\ link +TODO: explain this option. +.TP +.BI \-m\ NUM +SoftProof intent (0,1,2,3) [defaults to 0]. +.TP +.B \-n +Ignore embedded profile. +.TP +.BI \-o\ profile +Output profile (defaults to sRGB). +.TP +.BI \-p\ profile +Soft proof profile. +.TP +.BI \-q\ NUM +Output JPEG quality, (0..100) [defaults to 75]. +.TP +.BI \-s\ newprofile +Save embedded profile as \fInewprofile\fR. +.TP +.BI \-t\ NUM +Rendering intent +.nf +.RS +0=Perceptual [default] +1=Relative colorimetric +2=Saturation +3=Absolute colorimetric +10=Perceptual preserving black ink +11=Relative colorimetric preserving black ink +12=Saturation preserving black ink +13=Perceptual preserving black plane +14=Relative colorimetric preserving black plane +15=Saturation preserving black plane +.RE +.fi +.TP +.B \-v +Verbose. +.TP +.BI \-!\ NUM,NUM,NUM +Out-of-gamut marker channel values (r,g,b) [defaults: 128,128,128]. +.SH BUILT-IN PROFILES +.nf + *Lab2 -- D50-based v2 CIEL*a*b + *Lab4 -- D50-based v4 CIEL*a*b + *Lab -- D50-based v4 CIEL*a*b + *XYZ -- CIE XYZ (PCS) + *sRGB -- sRGB color space + *Gray22 - Monochrome of Gamma 2.2 + *Gray30 - Monochrome of Gamma 3.0 + *null - Monochrome black for all input + *Lin2222- CMYK linearization of gamma 2.2 on each channel +.fi +.SH EXAMPLES +.nf +To color correct from scanner to sRGB: + jpgicc -iscanner.icm in.jpg out.jpg + +To convert from monitor1 to monitor2: + jpgicc -imon1.icm -omon2.icm in.jpg out.jpg + +To make a CMYK separation: + jpgicc -oprinter.icm inrgb.jpg outcmyk.jpg + +To recover sRGB from a CMYK separation: + jpgicc -iprinter.icm incmyk.jpg outrgb.jpg + +To convert from CIELab ITU/Fax JPEG to sRGB + jpgicc -iitufax.icm in.jpg out.jpg + +To convert from CIELab ITU/Fax JPEG to sRGB + jpgicc in.jpg out.jpg +.fi +.SH NOTES +For suggestions, comments, bug reports etc. send mail to +info@littlecms.com. +.SH SEE ALSO +.BR linkicc (1), +.BR psicc (1), +.BR tificc (1), +.BR transicc (1) +.SH AUTHOR +This manual page was written by Shiju p. Nair <shiju.p@gmail.com>, +for the Debian project. diff --git a/lcms2mt/utils/jpgicc/jpgicc.c b/lcms2mt/utils/jpgicc/jpgicc.c new file mode 100644 index 000000000..b4a880040 --- /dev/null +++ b/lcms2mt/utils/jpgicc/jpgicc.c @@ -0,0 +1,1263 @@ +//--------------------------------------------------------------------------------- +// +// Little Color Management System +// Copyright (c) 1998-2017 Marti Maria Saguer +// +// Permission is hereby granted, free of charge, to any person 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, sublicense, +// 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: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "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. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// + +// This program does apply profiles to (some) JPEG files + + +#include "utils.h" + +#include "jpeglib.h" +#include "iccjpeg.h" + +// Flags +static cmsBool BlackPointCompensation = FALSE; +static cmsBool IgnoreEmbedded = FALSE; +static cmsBool GamutCheck = FALSE; +static cmsBool lIsITUFax = FALSE; +static cmsBool lIsPhotoshopApp13 = FALSE; +static cmsBool lIsEXIF; +static cmsBool lIsDeviceLink = FALSE; +static cmsBool EmbedProfile = FALSE; + +static const char* SaveEmbedded = NULL; + +static int Intent = INTENT_PERCEPTUAL; +static int ProofingIntent = INTENT_PERCEPTUAL; +static int PrecalcMode = 1; + +static int jpegQuality = 75; + +static cmsFloat64Number ObserverAdaptationState = 0; + + +static char *cInpProf = NULL; +static char *cOutProf = NULL; +static char *cProofing = NULL; + +static FILE * InFile; +static FILE * OutFile; + +static struct jpeg_decompress_struct Decompressor; +static struct jpeg_compress_struct Compressor; + + +static struct my_error_mgr { + + struct jpeg_error_mgr pub; // "public" fields + void* Cargo; // "private" fields + +} ErrorHandler; + + +cmsUInt16Number Alarm[4] = {128,128,128,0}; + + +static +void my_error_exit (j_common_ptr cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + + (*cinfo->err->format_message) (cinfo, buffer); + FatalError(buffer); +} + +/* +Definition of the APPn Markers Defined for continuous-tone G3FAX + +The application code APP1 initiates identification of the image as +a G3FAX application and defines the spatial resolution and subsampling. +This marker directly follows the SOI marker. The data format will be as follows: + +X'FFE1' (APP1), length, FAX identifier, version, spatial resolution. + +The above terms are defined as follows: + +Length: (Two octets) Total APP1 field octet count including the octet count itself, but excluding the APP1 +marker. + +FAX identifier: (Six octets) X'47', X'33', X'46', X'41', X'58', X'00'. This X'00'-terminated string "G3FAX" +uniquely identifies this APP1 marker. + +Version: (Two octets) X'07CA'. This string specifies the year of approval of the standard, for identification +in the case of future revision (for example, 1994). + +Spatial Resolution: (Two octets) Lightness pixel density in pels/25.4 mm. The basic value is 200. Allowed values are +100, 200, 300, 400, 600 and 1200 pels/25.4 mm, with square (or equivalent) pels. + +NOTE – The functional equivalence of inch-based and mm-based resolutions is maintained. For example, the 200 × 200 +*/ + +static +cmsBool IsITUFax(jpeg_saved_marker_ptr ptr) +{ + while (ptr) + { + if (ptr -> marker == (JPEG_APP0 + 1) && ptr -> data_length > 5) { + + const char* data = (const char*) ptr -> data; + + if (strcmp(data, "G3FAX") == 0) return TRUE; + } + + ptr = ptr -> next; + } + + return FALSE; +} + +// Save a ITU T.42/Fax marker with defaults on boundaries. This is the only mode we support right now. +static +void SetITUFax(j_compress_ptr cinfo) +{ + unsigned char Marker[] = "G3FAX\x00\0x07\xCA\x00\xC8"; + + jpeg_write_marker(cinfo, (JPEG_APP0 + 1), Marker, 10); +} + + +// Build a profile for decoding ITU T.42/Fax JPEG streams. +// The profile has an additional ability in the input direction of +// gamut compress values between 85 < a < -85 and -75 < b < 125. This conforms +// the default range for ITU/T.42 -- See RFC 2301, section 6.2.3 for details + +// L* = [0, 100] +// a* = [–85, 85] +// b* = [–75, 125] + + +// These functions does convert the encoding of ITUFAX to floating point +// and vice-versa. No gamut mapping is performed yet. + +static +void ITU2Lab(const cmsUInt16Number In[3], cmsCIELab* Lab) +{ + Lab -> L = (double) In[0] / 655.35; + Lab -> a = (double) 170.* (In[1] - 32768.) / 65535.; + Lab -> b = (double) 200.* (In[2] - 24576.) / 65535.; +} + +static +void Lab2ITU(const cmsCIELab* Lab, cmsUInt16Number Out[3]) +{ + Out[0] = (cmsUInt16Number) floor((double) (Lab -> L / 100.)* 65535. ); + Out[1] = (cmsUInt16Number) floor((double) (Lab -> a / 170.)* 65535. + 32768. ); + Out[2] = (cmsUInt16Number) floor((double) (Lab -> b / 200.)* 65535. + 24576. ); +} + +// These are the samplers-- They are passed as callbacks to cmsStageSampleCLut16bit() +// then, cmsSample3DGrid() will sweel whole Lab gamut calling these functions +// once for each node. In[] will contain the Lab PCS value to convert to ITUFAX +// on PCS2ITU, or the ITUFAX value to convert to Lab in ITU2PCS +// You can change the number of sample points if desired, the algorithm will +// remain same. 33 points gives good accurancy, but you can reduce to 22 or less +// is space is critical + +#define GRID_POINTS 33 + +static +int PCS2ITU(cmsContext ContextID, register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo) +{ + cmsCIELab Lab; + + cmsLabEncoded2Float(NULL, &Lab, In); + cmsDesaturateLab(NULL, &Lab, 85, -85, 125, -75); // This function does the necessary gamut remapping + Lab2ITU(&Lab, Out); + return TRUE; + + UTILS_UNUSED_PARAMETER(Cargo); + UTILS_UNUSED_PARAMETER(ContextID); +} + + +static +int ITU2PCS(cmsContext ContextID, register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo) +{ + cmsCIELab Lab; + + ITU2Lab(In, &Lab); + cmsFloat2LabEncoded(NULL, Out, &Lab); + return TRUE; + + UTILS_UNUSED_PARAMETER(Cargo); + UTILS_UNUSED_PARAMETER(ContextID); +} + +// This function does create the virtual input profile, which decodes ITU to the profile connection space +static +cmsHPROFILE CreateITU2PCS_ICC(void) +{ + cmsHPROFILE hProfile; + cmsPipeline* AToB0; + cmsStage* ColorMap; + + AToB0 = cmsPipelineAlloc(0, 3, 3); + if (AToB0 == NULL) return NULL; + + ColorMap = cmsStageAllocCLut16bit(0, GRID_POINTS, 3, 3, NULL); + if (ColorMap == NULL) return NULL; + + cmsPipelineInsertStage(NULL, AToB0, cmsAT_BEGIN, ColorMap); + cmsStageSampleCLut16bit(NULL, ColorMap, ITU2PCS, NULL, 0); + + hProfile = cmsCreateProfilePlaceholder(0); + if (hProfile == NULL) { + cmsPipelineFree(NULL, AToB0); + return NULL; + } + + cmsWriteTag(NULL, hProfile, cmsSigAToB0Tag, AToB0); + cmsSetColorSpace(NULL, hProfile, cmsSigLabData); + cmsSetPCS(NULL, hProfile, cmsSigLabData); + cmsSetDeviceClass(NULL, hProfile, cmsSigColorSpaceClass); + cmsPipelineFree(NULL, AToB0); + + return hProfile; +} + + +// This function does create the virtual output profile, with the necessary gamut mapping +static +cmsHPROFILE CreatePCS2ITU_ICC(void) +{ + cmsHPROFILE hProfile; + cmsPipeline* BToA0; + cmsStage* ColorMap; + + BToA0 = cmsPipelineAlloc(0, 3, 3); + if (BToA0 == NULL) return NULL; + + ColorMap = cmsStageAllocCLut16bit(0, GRID_POINTS, 3, 3, NULL); + if (ColorMap == NULL) return NULL; + + cmsPipelineInsertStage(NULL, BToA0, cmsAT_BEGIN, ColorMap); + cmsStageSampleCLut16bit(NULL, ColorMap, PCS2ITU, NULL, 0); + + hProfile = cmsCreateProfilePlaceholder(0); + if (hProfile == NULL) { + cmsPipelineFree(NULL, BToA0); + return NULL; + } + + cmsWriteTag(NULL, hProfile, cmsSigBToA0Tag, BToA0); + cmsSetColorSpace(NULL, hProfile, cmsSigLabData); + cmsSetPCS(NULL, hProfile, cmsSigLabData); + cmsSetDeviceClass(NULL, hProfile, cmsSigColorSpaceClass); + + cmsPipelineFree(NULL, BToA0); + + return hProfile; +} + + + +#define PS_FIXED_TO_FLOAT(h, l) ((float) (h) + ((float) (l)/(1<<16))) + +static +cmsBool ProcessPhotoshopAPP13(JOCTET FAR *data, int datalen) +{ + int i; + + for (i = 14; i < datalen; ) + { + long len; + unsigned int type; + + if (!(GETJOCTET(data[i] ) == 0x38 && + GETJOCTET(data[i+1]) == 0x42 && + GETJOCTET(data[i+2]) == 0x49 && + GETJOCTET(data[i+3]) == 0x4D)) break; // Not recognized + + i += 4; // identifying string + + type = (unsigned int) (GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1])); + + i += 2; // resource type + + i += GETJOCTET(data[i]) + ((GETJOCTET(data[i]) & 1) ? 1 : 2); // resource name + + len = ((((GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1]))<<8) + + GETJOCTET(data[i+2]))<<8) + GETJOCTET(data[i+3]); + + i += 4; // Size + + if (type == 0x03ED && len >= 16) { + + Decompressor.X_density = (UINT16) PS_FIXED_TO_FLOAT(GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1]), + GETJOCTET(data[i+2]<<8) + GETJOCTET(data[i+3])); + Decompressor.Y_density = (UINT16) PS_FIXED_TO_FLOAT(GETJOCTET(data[i+8]<<8) + GETJOCTET(data[i+9]), + GETJOCTET(data[i+10]<<8) + GETJOCTET(data[i+11])); + + // Set the density unit to 1 since the + // Vertical and Horizontal resolutions + // are specified in Pixels per inch + + Decompressor.density_unit = 0x01; + return TRUE; + + } + + i += len + ((len & 1) ? 1 : 0); // Alignment + } + return FALSE; +} + + +static +cmsBool HandlePhotoshopAPP13(jpeg_saved_marker_ptr ptr) +{ + while (ptr) { + + if (ptr -> marker == (JPEG_APP0 + 13) && ptr -> data_length > 9) + { + JOCTET FAR* data = ptr -> data; + + if(GETJOCTET(data[0]) == 0x50 && + GETJOCTET(data[1]) == 0x68 && + GETJOCTET(data[2]) == 0x6F && + GETJOCTET(data[3]) == 0x74 && + GETJOCTET(data[4]) == 0x6F && + GETJOCTET(data[5]) == 0x73 && + GETJOCTET(data[6]) == 0x68 && + GETJOCTET(data[7]) == 0x6F && + GETJOCTET(data[8]) == 0x70) { + + ProcessPhotoshopAPP13(data, ptr -> data_length); + return TRUE; + } + } + + ptr = ptr -> next; + } + + return FALSE; +} + + +typedef unsigned short uint16_t; +typedef unsigned char uint8_t; +typedef unsigned int uint32_t; + +#define INTEL_BYTE_ORDER 0x4949 +#define XRESOLUTION 0x011a +#define YRESOLUTION 0x011b +#define RESOLUTION_UNIT 0x128 + +// Read a 16-bit word +static +uint16_t read16(uint8_t* arr, int pos, int swapBytes) +{ + uint8_t b1 = arr[pos]; + uint8_t b2 = arr[pos+1]; + + return (swapBytes) ? ((b2 << 8) | b1) : ((b1 << 8) | b2); +} + + +// Read a 32-bit word +static +uint32_t read32(uint8_t* arr, int pos, int swapBytes) +{ + + if(!swapBytes) { + + return (arr[pos] << 24) | + (arr[pos+1] << 16) | + (arr[pos+2] << 8) | + arr[pos+3]; + } + + return arr[pos] | + (arr[pos+1] << 8) | + (arr[pos+2] << 16) | + (arr[pos+3] << 24); +} + + + +static +int read_tag(uint8_t* arr, int pos, int swapBytes, void* dest) +{ + // Format should be 5 over here (rational) + uint32_t format = read16(arr, pos + 2, swapBytes); + // Components should be 1 + uint32_t components = read32(arr, pos + 4, swapBytes); + // Points to the value + uint32_t offset; + + // sanity + if (components != 1) return 0; + + if (format == 3) + offset = pos + 8; + else + offset = read32(arr, pos + 8, swapBytes); + + switch (format) { + + case 5: // Rational + { + double num = read32(arr, offset, swapBytes); + double den = read32(arr, offset + 4, swapBytes); + *(double *) dest = num / den; + } + break; + + case 3: // uint 16 + *(int*) dest = read16(arr, offset, swapBytes); + break; + + default: return 0; + } + + return 1; +} + + + +// Handler for EXIF data +static + cmsBool HandleEXIF(struct jpeg_decompress_struct* cinfo) +{ + jpeg_saved_marker_ptr ptr; + uint32_t ifd_ofs; + int pos = 0, swapBytes = 0; + uint32_t i, numEntries; + double XRes = -1, YRes = -1; + int Unit = 2; // Inches + + + for (ptr = cinfo ->marker_list; ptr; ptr = ptr ->next) { + + if ((ptr ->marker == JPEG_APP0+1) && ptr ->data_length > 6) { + JOCTET FAR* data = ptr -> data; + + if (memcmp(data, "Exif\0\0", 6) == 0) { + + data += 6; // Skip EXIF marker + + // 8 byte TIFF header + // first two determine byte order + pos = 0; + if (read16(data, pos, 0) == INTEL_BYTE_ORDER) { + swapBytes = 1; + } + + pos += 2; + + // next two bytes are always 0x002A (TIFF version) + pos += 2; + + // offset to Image File Directory (includes the previous 8 bytes) + ifd_ofs = read32(data, pos, swapBytes); + + // Search the directory for resolution tags + numEntries = read16(data, ifd_ofs, swapBytes); + + for (i=0; i < numEntries; i++) { + + uint32_t entryOffset = ifd_ofs + 2 + (12 * i); + uint32_t tag = read16(data, entryOffset, swapBytes); + + switch (tag) { + + case RESOLUTION_UNIT: + if (!read_tag(data, entryOffset, swapBytes, &Unit)) return FALSE; + break; + + case XRESOLUTION: + if (!read_tag(data, entryOffset, swapBytes, &XRes)) return FALSE; + break; + + case YRESOLUTION: + if (!read_tag(data, entryOffset, swapBytes, &YRes)) return FALSE; + break; + + default:; + } + + } + + // Proceed if all found + + if (XRes != -1 && YRes != -1) + { + + // 1 = None + // 2 = inches + // 3 = cm + + switch (Unit) { + + case 2: + + cinfo ->X_density = (UINT16) floor(XRes + 0.5); + cinfo ->Y_density = (UINT16) floor(YRes + 0.5); + break; + + case 1: + + cinfo ->X_density = (UINT16) floor(XRes * 2.54 + 0.5); + cinfo ->Y_density = (UINT16) floor(YRes * 2.54 + 0.5); + break; + + default: return FALSE; + } + + cinfo ->density_unit = 1; /* 1 for dots/inch, or 2 for dots/cm.*/ + + } + + + } + } + } + return FALSE; +} + + +static +cmsBool OpenInput(const char* FileName) +{ + int m; + + lIsITUFax = FALSE; + InFile = fopen(FileName, "rb"); + if (InFile == NULL) { + FatalError("Cannot open '%s'", FileName); + } + + // Now we can initialize the JPEG decompression object. + Decompressor.err = jpeg_std_error(&ErrorHandler.pub); + ErrorHandler.pub.error_exit = my_error_exit; + ErrorHandler.pub.output_message = my_error_exit; + + jpeg_create_decompress(&Decompressor); + jpeg_stdio_src(&Decompressor, InFile); + + for (m = 0; m < 16; m++) + jpeg_save_markers(&Decompressor, JPEG_APP0 + m, 0xFFFF); + + // setup_read_icc_profile(&Decompressor); + + fseek(InFile, 0, SEEK_SET); + jpeg_read_header(&Decompressor, TRUE); + + return TRUE; +} + + +static +cmsBool OpenOutput(const char* FileName) +{ + + OutFile = fopen(FileName, "wb"); + if (OutFile == NULL) { + FatalError("Cannot create '%s'", FileName); + + } + + Compressor.err = jpeg_std_error(&ErrorHandler.pub); + ErrorHandler.pub.error_exit = my_error_exit; + ErrorHandler.pub.output_message = my_error_exit; + + Compressor.input_components = Compressor.num_components = 4; + + jpeg_create_compress(&Compressor); + jpeg_stdio_dest(&Compressor, OutFile); + return TRUE; +} + +static +cmsBool Done(void) +{ + jpeg_destroy_decompress(&Decompressor); + jpeg_destroy_compress(&Compressor); + return fclose(InFile) + fclose(OutFile); + +} + + +// Build up the pixeltype descriptor + +static +cmsUInt32Number GetInputPixelType(void) +{ + int space, bps, extra, ColorChannels, Flavor; + + lIsITUFax = IsITUFax(Decompressor.marker_list); + lIsPhotoshopApp13 = HandlePhotoshopAPP13(Decompressor.marker_list); + lIsEXIF = HandleEXIF(&Decompressor); + + ColorChannels = Decompressor.num_components; + extra = 0; // Alpha = None + bps = 1; // 8 bits + Flavor = 0; // Vanilla + + if (lIsITUFax) { + + space = PT_Lab; + Decompressor.out_color_space = JCS_YCbCr; // Fake to don't touch + } + else + switch (Decompressor.jpeg_color_space) { + + case JCS_GRAYSCALE: // monochrome + space = PT_GRAY; + Decompressor.out_color_space = JCS_GRAYSCALE; + break; + + case JCS_RGB: // red/green/blue + space = PT_RGB; + Decompressor.out_color_space = JCS_RGB; + break; + + case JCS_YCbCr: // Y/Cb/Cr (also known as YUV) + space = PT_RGB; // Let IJG code to do the conversion + Decompressor.out_color_space = JCS_RGB; + break; + + case JCS_CMYK: // C/M/Y/K + space = PT_CMYK; + Decompressor.out_color_space = JCS_CMYK; + if (Decompressor.saw_Adobe_marker) // Adobe keeps CMYK inverted, so change flavor + Flavor = 1; // from vanilla to chocolate + break; + + case JCS_YCCK: // Y/Cb/Cr/K + space = PT_CMYK; + Decompressor.out_color_space = JCS_CMYK; + if (Decompressor.saw_Adobe_marker) // ditto + Flavor = 1; + break; + + default: + FatalError("Unsupported color space (0x%x)", Decompressor.jpeg_color_space); + return 0; + } + + return (EXTRA_SH(extra)|CHANNELS_SH(ColorChannels)|BYTES_SH(bps)|COLORSPACE_SH(space)|FLAVOR_SH(Flavor)); +} + + +// Rearrange pixel type to build output descriptor +static +cmsUInt32Number ComputeOutputFormatDescriptor(cmsUInt32Number dwInput, int OutColorSpace) +{ + int IsPlanar = T_PLANAR(dwInput); + int Channels = 0; + int Flavor = 0; + + switch (OutColorSpace) { + + case PT_GRAY: + Channels = 1; + break; + case PT_RGB: + case PT_CMY: + case PT_Lab: + case PT_YUV: + case PT_YCbCr: + Channels = 3; + break; + + case PT_CMYK: + if (Compressor.write_Adobe_marker) // Adobe keeps CMYK inverted, so change flavor to chocolate + Flavor = 1; + Channels = 4; + break; + default: + FatalError("Unsupported output color space"); + } + + return (COLORSPACE_SH(OutColorSpace)|PLANAR_SH(IsPlanar)|CHANNELS_SH(Channels)|BYTES_SH(1)|FLAVOR_SH(Flavor)); +} + + +// Equivalence between ICC color spaces and lcms color spaces +static +int GetProfileColorSpace(cmsHPROFILE hProfile) +{ + cmsColorSpaceSignature ProfileSpace = cmsGetColorSpace(NULL, hProfile); + + return _cmsLCMScolorSpace(NULL, ProfileSpace); +} + +static +int GetDevicelinkColorSpace(cmsHPROFILE hProfile) +{ + cmsColorSpaceSignature ProfileSpace = cmsGetPCS(NULL, hProfile); + + return _cmsLCMScolorSpace(NULL, ProfileSpace); +} + + +// From TRANSUPP + +static +void jcopy_markers_execute(j_decompress_ptr srcinfo, j_compress_ptr dstinfo) +{ + jpeg_saved_marker_ptr marker; + + /* In the current implementation, we don't actually need to examine the + * option flag here; we just copy everything that got saved. + * But to avoid confusion, we do not output JFIF and Adobe APP14 markers + * if the encoder library already wrote one. + */ + for (marker = srcinfo->marker_list; marker != NULL; marker = marker->next) { + + if (dstinfo->write_JFIF_header && + marker->marker == JPEG_APP0 && + marker->data_length >= 5 && + GETJOCTET(marker->data[0]) == 0x4A && + GETJOCTET(marker->data[1]) == 0x46 && + GETJOCTET(marker->data[2]) == 0x49 && + GETJOCTET(marker->data[3]) == 0x46 && + GETJOCTET(marker->data[4]) == 0) + continue; /* reject duplicate JFIF */ + + if (dstinfo->write_Adobe_marker && + marker->marker == JPEG_APP0+14 && + marker->data_length >= 5 && + GETJOCTET(marker->data[0]) == 0x41 && + GETJOCTET(marker->data[1]) == 0x64 && + GETJOCTET(marker->data[2]) == 0x6F && + GETJOCTET(marker->data[3]) == 0x62 && + GETJOCTET(marker->data[4]) == 0x65) + continue; /* reject duplicate Adobe */ + + jpeg_write_marker(dstinfo, marker->marker, + marker->data, marker->data_length); + } +} + +static +void WriteOutputFields(int OutputColorSpace) +{ + J_COLOR_SPACE in_space, jpeg_space; + int components; + + switch (OutputColorSpace) { + + case PT_GRAY: in_space = jpeg_space = JCS_GRAYSCALE; + components = 1; + break; + + case PT_RGB: in_space = JCS_RGB; + jpeg_space = JCS_YCbCr; + components = 3; + break; // red/green/blue + + case PT_YCbCr: in_space = jpeg_space = JCS_YCbCr; + components = 3; + break; // Y/Cb/Cr (also known as YUV) + + case PT_CMYK: in_space = JCS_CMYK; + jpeg_space = JCS_YCCK; + components = 4; + break; // C/M/Y/components + + case PT_Lab: in_space = jpeg_space = JCS_YCbCr; + components = 3; + break; // Fake to don't touch + default: + FatalError("Unsupported output color space"); + return; + } + + + if (jpegQuality >= 100) { + + // avoid destructive conversion when asking for lossless compression + jpeg_space = in_space; + } + + Compressor.in_color_space = in_space; + Compressor.jpeg_color_space = jpeg_space; + Compressor.input_components = Compressor.num_components = components; + jpeg_set_defaults(&Compressor); + jpeg_set_colorspace(&Compressor, jpeg_space); + + + // Make sure to pass resolution through + if (OutputColorSpace == PT_CMYK) + Compressor.write_JFIF_header = 1; + + // Avoid subsampling on high quality factor + jpeg_set_quality(&Compressor, jpegQuality, 1); + if (jpegQuality >= 70) { + + int i; + for(i=0; i < Compressor.num_components; i++) { + + Compressor.comp_info[i].h_samp_factor = 1; + Compressor.comp_info[i].v_samp_factor = 1; + } + + } + +} + + +static +void DoEmbedProfile(const char* ProfileFile) +{ + FILE* f; + size_t size, EmbedLen; + cmsUInt8Number* EmbedBuffer; + + f = fopen(ProfileFile, "rb"); + if (f == NULL) return; + + size = cmsfilelength(f); + EmbedBuffer = (cmsUInt8Number*) malloc(size + 1); + EmbedLen = fread(EmbedBuffer, 1, size, f); + fclose(f); + EmbedBuffer[EmbedLen] = 0; + + write_icc_profile (&Compressor, EmbedBuffer, (unsigned int) EmbedLen); + free(EmbedBuffer); +} + + + +static +int DoTransform(cmsHTRANSFORM hXForm, int OutputColorSpace) +{ + JSAMPROW ScanLineIn; + JSAMPROW ScanLineOut; + + + //Preserve resolution values from the original + // (Thanks to Robert Bergs for finding out this bug) + Compressor.density_unit = Decompressor.density_unit; + Compressor.X_density = Decompressor.X_density; + Compressor.Y_density = Decompressor.Y_density; + + // Compressor.write_JFIF_header = 1; + + jpeg_start_decompress(&Decompressor); + jpeg_start_compress(&Compressor, TRUE); + + if (OutputColorSpace == PT_Lab) + SetITUFax(&Compressor); + + // Embed the profile if needed + if (EmbedProfile && cOutProf) + DoEmbedProfile(cOutProf); + + ScanLineIn = (JSAMPROW) malloc(Decompressor.output_width * Decompressor.num_components); + ScanLineOut = (JSAMPROW) malloc(Compressor.image_width * Compressor.num_components); + + while (Decompressor.output_scanline < + Decompressor.output_height) { + + jpeg_read_scanlines(&Decompressor, &ScanLineIn, 1); + + cmsDoTransform(NULL, hXForm, ScanLineIn, ScanLineOut, Decompressor.output_width); + + jpeg_write_scanlines(&Compressor, &ScanLineOut, 1); + } + + free(ScanLineIn); + free(ScanLineOut); + + jpeg_finish_decompress(&Decompressor); + jpeg_finish_compress(&Compressor); + + return TRUE; +} + + + +// Transform one image + +static +int TransformImage(char *cDefInpProf, char *cOutputProf) +{ + cmsHPROFILE hIn, hOut, hProof; + cmsHTRANSFORM xform; + cmsUInt32Number wInput, wOutput; + int OutputColorSpace; + cmsUInt32Number dwFlags = 0; + cmsUInt32Number EmbedLen; + cmsUInt8Number* EmbedBuffer; + + + cmsSetAdaptationState(ObserverAdaptationState); + + if (BlackPointCompensation) { + + dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION; + } + + + switch (PrecalcMode) { + + case 0: dwFlags |= cmsFLAGS_NOOPTIMIZE; break; + case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break; + case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break; + default:; + } + + + if (GamutCheck) { + dwFlags |= cmsFLAGS_GAMUTCHECK; + cmsSetAlarmCodes(Alarm); + } + + // Take input color space + wInput = GetInputPixelType(); + + if (lIsDeviceLink) { + + hIn = cmsOpenProfileFromFile(cDefInpProf, "r"); + hOut = NULL; + hProof = NULL; + } + else { + + if (!IgnoreEmbedded && read_icc_profile(&Decompressor, &EmbedBuffer, &EmbedLen)) + { + hIn = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen); + + if (Verbose) { + + fprintf(stdout, " (Embedded profile found)\n"); + PrintProfileInformation(NULL, hIn); + fflush(stdout); + } + + if (hIn != NULL && SaveEmbedded != NULL) + SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded); + + free(EmbedBuffer); + } + else + { + // Default for ITU/Fax + if (cDefInpProf == NULL && T_COLORSPACE(wInput) == PT_Lab) + cDefInpProf = "*Lab"; + + if (cDefInpProf != NULL && cmsstrcasecmp(cDefInpProf, "*lab") == 0) + hIn = CreateITU2PCS_ICC(); + else + hIn = OpenStockProfile(0, cDefInpProf); + } + + if (cOutputProf != NULL && cmsstrcasecmp(cOutputProf, "*lab") == 0) + hOut = CreatePCS2ITU_ICC(); + else + hOut = OpenStockProfile(0, cOutputProf); + + hProof = NULL; + if (cProofing != NULL) { + + hProof = OpenStockProfile(0, cProofing); + if (hProof == NULL) { + FatalError("Proofing profile couldn't be read."); + } + dwFlags |= cmsFLAGS_SOFTPROOFING; + } + } + + if (!hIn) + FatalError("Input profile couldn't be read."); + if (!lIsDeviceLink && !hOut) + FatalError("Output profile couldn't be read."); + + // Assure both, input profile and input JPEG are on same colorspace + if (cmsGetColorSpace(NULL, hIn) != _cmsICCcolorSpace(NULL, T_COLORSPACE(wInput))) + FatalError("Input profile is not operating in proper color space"); + + + // Output colorspace is given by output profile + + if (lIsDeviceLink) { + OutputColorSpace = GetDevicelinkColorSpace(hIn); + } + else { + OutputColorSpace = GetProfileColorSpace(hOut); + } + + jpeg_copy_critical_parameters(&Decompressor, &Compressor); + + WriteOutputFields(OutputColorSpace); + + wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace); + + + xform = cmsCreateProofingTransform(hIn, wInput, + hOut, wOutput, + hProof, Intent, + ProofingIntent, dwFlags); + if (xform == NULL) + FatalError("Cannot transform by using the profiles"); + + DoTransform(xform, OutputColorSpace); + + + jcopy_markers_execute(&Decompressor, &Compressor); + + cmsDeleteTransform(NULL, xform); + cmsCloseProfile(NULL, hIn); + cmsCloseProfile(NULL, hOut); + if (hProof) cmsCloseProfile(NULL, hProof); + + return 1; +} + + +// Simply print help + +static +void Help(int level) +{ + fprintf(stderr, "little cms ICC profile applier for JPEG - v3.2 [LittleCMS %2.2f]\n\n", LCMS_VERSION / 1000.0); + + switch(level) { + + default: + case 0: + + fprintf(stderr, "usage: jpgicc [flags] input.jpg output.jpg\n"); + + fprintf(stderr, "\nflags:\n\n"); + fprintf(stderr, "%cv - Verbose\n", SW); + fprintf(stderr, "%ci<profile> - Input profile (defaults to sRGB)\n", SW); + fprintf(stderr, "%co<profile> - Output profile (defaults to sRGB)\n", SW); + + PrintRenderingIntents(); + + + fprintf(stderr, "%cb - Black point compensation\n", SW); + fprintf(stderr, "%cd<0..1> - Observer adaptation state (abs.col. only)\n", SW); + fprintf(stderr, "%cn - Ignore embedded profile\n", SW); + fprintf(stderr, "%ce - Embed destination profile\n", SW); + fprintf(stderr, "%cs<new profile> - Save embedded profile as <new profile>\n", SW); + + fprintf(stderr, "\n"); + + fprintf(stderr, "%cc<0,1,2,3> - Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes) [defaults to 1]\n", SW); + fprintf(stderr, "\n"); + + fprintf(stderr, "%cp<profile> - Soft proof profile\n", SW); + fprintf(stderr, "%cm<0,1,2,3> - SoftProof intent\n", SW); + fprintf(stderr, "%cg - Marks out-of-gamut colors on softproof\n", SW); + fprintf(stderr, "%c!<r>,<g>,<b> - Out-of-gamut marker channel values\n", SW); + + fprintf(stderr, "\n"); + fprintf(stderr, "%cq<0..100> - Output JPEG quality\n", SW); + + fprintf(stderr, "\n"); + fprintf(stderr, "%ch<0,1,2,3> - More help\n", SW); + break; + + case 1: + + fprintf(stderr, "Examples:\n\n" + "To color correct from scanner to sRGB:\n" + "\tjpgicc %ciscanner.icm in.jpg out.jpg\n" + "To convert from monitor1 to monitor2:\n" + "\tjpgicc %cimon1.icm %comon2.icm in.jpg out.jpg\n" + "To make a CMYK separation:\n" + "\tjpgicc %coprinter.icm inrgb.jpg outcmyk.jpg\n" + "To recover sRGB from a CMYK separation:\n" + "\tjpgicc %ciprinter.icm incmyk.jpg outrgb.jpg\n" + "To convert from CIELab ITU/Fax JPEG to sRGB\n" + "\tjpgicc in.jpg out.jpg\n\n", + SW, SW, SW, SW, SW); + break; + + case 2: + PrintBuiltins(); + break; + + case 3: + + fprintf(stderr, "This program is intended to be a demo of the little cms\n" + "engine. Both lcms and this program are freeware. You can\n" + "obtain both in source code at http://www.littlecms.com\n" + "For suggestions, comments, bug reports etc. send mail to\n" + "marti@littlecms.com\n\n"); + break; + } + + exit(0); +} + + +// The toggles stuff + +static +void HandleSwitches(int argc, char *argv[]) +{ + int s; + + while ((s=xgetopt(argc,argv,"bBnNvVGgh:H:i:I:o:O:P:p:t:T:c:C:Q:q:M:m:L:l:eEs:S:!:D:d:")) != EOF) { + + switch (s) + { + + case 'b': + case 'B': + BlackPointCompensation = TRUE; + break; + + case 'd': + case 'D': ObserverAdaptationState = atof(xoptarg); + if (ObserverAdaptationState < 0 || + ObserverAdaptationState > 1.0) + FatalError("Adaptation state should be 0..1"); + break; + + case 'v': + case 'V': + Verbose = TRUE; + break; + + case 'i': + case 'I': + if (lIsDeviceLink) + FatalError("Device-link already specified"); + + cInpProf = xoptarg; + break; + + case 'o': + case 'O': + if (lIsDeviceLink) + FatalError("Device-link already specified"); + + cOutProf = xoptarg; + break; + + case 'l': + case 'L': + if (cInpProf != NULL || cOutProf != NULL) + FatalError("input/output profiles already specified"); + + cInpProf = xoptarg; + lIsDeviceLink = TRUE; + break; + + case 'p': + case 'P': + cProofing = xoptarg; + break; + + case 't': + case 'T': + Intent = atoi(xoptarg); + break; + + case 'N': + case 'n': + IgnoreEmbedded = TRUE; + break; + + case 'e': + case 'E': + EmbedProfile = TRUE; + break; + + + case 'g': + case 'G': + GamutCheck = TRUE; + break; + + case 'c': + case 'C': + PrecalcMode = atoi(xoptarg); + if (PrecalcMode < 0 || PrecalcMode > 2) + FatalError("Unknown precalc mode '%d'", PrecalcMode); + break; + + case 'H': + case 'h': { + + int a = atoi(xoptarg); + Help(a); + } + break; + + case 'q': + case 'Q': + jpegQuality = atoi(xoptarg); + if (jpegQuality > 100) jpegQuality = 100; + if (jpegQuality < 0) jpegQuality = 0; + break; + + case 'm': + case 'M': + ProofingIntent = atoi(xoptarg); + break; + + case 's': + case 'S': SaveEmbedded = xoptarg; + break; + + case '!': + if (sscanf(xoptarg, "%hu,%hu,%hu", &Alarm[0], &Alarm[1], &Alarm[2]) == 3) { + int i; + for (i=0; i < 3; i++) { + Alarm[i] = (Alarm[i] << 8) | Alarm[i]; + } + } + break; + + default: + + FatalError("Unknown option - run without args to see valid ones"); + } + + } +} + + +int main(int argc, char* argv[]) +{ + InitUtils("jpgicc"); + + HandleSwitches(argc, argv); + + if ((argc - xoptind) != 2) { + Help(0); + } + + OpenInput(argv[xoptind]); + OpenOutput(argv[xoptind+1]); + + TransformImage(cInpProf, cOutProf); + + + if (Verbose) { fprintf(stdout, "\n"); fflush(stdout); } + + Done(); + + return 0; +} + + + |