summaryrefslogtreecommitdiff
path: root/utils/jpgicc/jpgicc.c
diff options
context:
space:
mode:
Diffstat (limited to 'utils/jpgicc/jpgicc.c')
-rw-r--r--utils/jpgicc/jpgicc.c2536
1 files changed, 1268 insertions, 1268 deletions
diff --git a/utils/jpgicc/jpgicc.c b/utils/jpgicc/jpgicc.c
index f4a3081..449c6c8 100644
--- a/utils/jpgicc/jpgicc.c
+++ b/utils/jpgicc/jpgicc.c
@@ -1,1268 +1,1268 @@
-//---------------------------------------------------------------------------------
-//
-// Little Color Management System
-// Copyright (c) 1998-2010 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};
-
-// Out of mem
-static
-void OutOfMem(size_t size)
-{
- FatalError("Out of memory on allocating %d bytes.", size);
-}
-
-
-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(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
-{
- cmsCIELab Lab;
-
- cmsLabEncoded2Float(&Lab, In);
- cmsDesaturateLab(&Lab, 85, -85, 125, -75); // This function does the necessary gamut remapping
- Lab2ITU(&Lab, Out);
- return TRUE;
-
- UTILS_UNUSED_PARAMETER(Cargo);
-}
-
-
-static
-int ITU2PCS( register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
-{
- cmsCIELab Lab;
-
- ITU2Lab(In, &Lab);
- cmsFloat2LabEncoded(Out, &Lab);
- return TRUE;
-
- UTILS_UNUSED_PARAMETER(Cargo);
-}
-
-// 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(AToB0, cmsAT_BEGIN, ColorMap);
- cmsStageSampleCLut16bit(ColorMap, ITU2PCS, NULL, 0);
-
- hProfile = cmsCreateProfilePlaceholder(0);
- if (hProfile == NULL) {
- cmsPipelineFree(AToB0);
- return NULL;
- }
-
- cmsWriteTag(hProfile, cmsSigAToB0Tag, AToB0);
- cmsSetColorSpace(hProfile, cmsSigLabData);
- cmsSetPCS(hProfile, cmsSigLabData);
- cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
- cmsPipelineFree(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(BToA0, cmsAT_BEGIN, ColorMap);
- cmsStageSampleCLut16bit(ColorMap, PCS2ITU, NULL, 0);
-
- hProfile = cmsCreateProfilePlaceholder(0);
- if (hProfile == NULL) {
- cmsPipelineFree(BToA0);
- return NULL;
- }
-
- cmsWriteTag(hProfile, cmsSigBToA0Tag, BToA0);
- cmsSetColorSpace(hProfile, cmsSigLabData);
- cmsSetPCS(hProfile, cmsSigLabData);
- cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
-
- cmsPipelineFree(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(hProfile);
-
- return _cmsLCMScolorSpace(ProfileSpace);
-}
-
-static
-int GetDevicelinkColorSpace(cmsHPROFILE hProfile)
-{
- cmsColorSpaceSignature ProfileSpace = cmsGetPCS(hProfile);
-
- return _cmsLCMScolorSpace(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, 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(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 *cOutProf)
-{
- 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(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 (cOutProf != NULL && cmsstrcasecmp(cOutProf, "*lab") == 0)
- hOut = CreatePCS2ITU_ICC();
- else
- hOut = OpenStockProfile(0, cOutProf);
-
- 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 (!hOut)
- FatalError("Output profile couldn't be read.");
-
- // Assure both, input profile and input JPEG are on same colorspace
- if (cmsGetColorSpace(hIn) != _cmsICCcolorSpace(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(xform);
- cmsCloseProfile(hIn);
- cmsCloseProfile(hOut);
- if (hProof) cmsCloseProfile(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, 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;
-}
-
-
-
+//---------------------------------------------------------------------------------
+//
+// Little Color Management System
+// Copyright (c) 1998-2010 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};
+
+// Out of mem
+static
+void OutOfMem(size_t size)
+{
+ FatalError("Out of memory on allocating %d bytes.", size);
+}
+
+
+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(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
+{
+ cmsCIELab Lab;
+
+ cmsLabEncoded2Float(&Lab, In);
+ cmsDesaturateLab(&Lab, 85, -85, 125, -75); // This function does the necessary gamut remapping
+ Lab2ITU(&Lab, Out);
+ return TRUE;
+
+ UTILS_UNUSED_PARAMETER(Cargo);
+}
+
+
+static
+int ITU2PCS( register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
+{
+ cmsCIELab Lab;
+
+ ITU2Lab(In, &Lab);
+ cmsFloat2LabEncoded(Out, &Lab);
+ return TRUE;
+
+ UTILS_UNUSED_PARAMETER(Cargo);
+}
+
+// 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(AToB0, cmsAT_BEGIN, ColorMap);
+ cmsStageSampleCLut16bit(ColorMap, ITU2PCS, NULL, 0);
+
+ hProfile = cmsCreateProfilePlaceholder(0);
+ if (hProfile == NULL) {
+ cmsPipelineFree(AToB0);
+ return NULL;
+ }
+
+ cmsWriteTag(hProfile, cmsSigAToB0Tag, AToB0);
+ cmsSetColorSpace(hProfile, cmsSigLabData);
+ cmsSetPCS(hProfile, cmsSigLabData);
+ cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
+ cmsPipelineFree(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(BToA0, cmsAT_BEGIN, ColorMap);
+ cmsStageSampleCLut16bit(ColorMap, PCS2ITU, NULL, 0);
+
+ hProfile = cmsCreateProfilePlaceholder(0);
+ if (hProfile == NULL) {
+ cmsPipelineFree(BToA0);
+ return NULL;
+ }
+
+ cmsWriteTag(hProfile, cmsSigBToA0Tag, BToA0);
+ cmsSetColorSpace(hProfile, cmsSigLabData);
+ cmsSetPCS(hProfile, cmsSigLabData);
+ cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
+
+ cmsPipelineFree(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(hProfile);
+
+ return _cmsLCMScolorSpace(ProfileSpace);
+}
+
+static
+int GetDevicelinkColorSpace(cmsHPROFILE hProfile)
+{
+ cmsColorSpaceSignature ProfileSpace = cmsGetPCS(hProfile);
+
+ return _cmsLCMScolorSpace(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, 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(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 *cOutProf)
+{
+ 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(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 (cOutProf != NULL && cmsstrcasecmp(cOutProf, "*lab") == 0)
+ hOut = CreatePCS2ITU_ICC();
+ else
+ hOut = OpenStockProfile(0, cOutProf);
+
+ 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 (!hOut)
+ FatalError("Output profile couldn't be read.");
+
+ // Assure both, input profile and input JPEG are on same colorspace
+ if (cmsGetColorSpace(hIn) != _cmsICCcolorSpace(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(xform);
+ cmsCloseProfile(hIn);
+ cmsCloseProfile(hOut);
+ if (hProof) cmsCloseProfile(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, 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;
+}
+
+
+
View Lorry Controller Status