/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks. Copyright (C) 2002-2019 by Jin-Hwan Cho and Shunsaku Hirata, the dvipdfmx project team. Copyright (C) 1998, 1999 by Mark A. Wicks This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ /* No page independence here... */ #include "dpx-pdfcolor.h" #include #include #include #include #include #include #include "dpx-dpxconf.h" #include "dpx-error.h" #include "dpx-mem.h" #include "dpx-numbers.h" #include "dpx-pdfdev.h" #include "dpx-pdfdoc.h" #include "dpx-pdfresource.h" int pdf_color_type (const pdf_color *color) { assert(color); return color->type; } int pdf_color_rgbcolor (pdf_color *color, double r, double g, double b) { assert(color); if (r < 0.0 || r > 1.0) { dpx_warning("Invalid color value specified: red=%g", r); return -1; } if (g < 0.0 || g > 1.0) { dpx_warning("Invalid color value specified: green=%g", g); return -1; } if (b < 0.0 || b > 1.0) { dpx_warning("Invalid color value specified: blue=%g", b); return -1; } color->values[0] = r; color->values[1] = g; color->values[2] = b; color->res_id = -1; color->type = PDF_COLORSPACE_TYPE_RGB; color->num_components = 3; color->spot_color_name = NULL; return 0; } int pdf_color_cmykcolor (pdf_color *color, double c, double m, double y, double k) { assert(color); if (c < 0.0 || c > 1.0) { dpx_warning("Invalid color value specified: cyan=%g", c); return -1; } if (m < 0.0 || m > 1.0) { dpx_warning("Invalid color value specified: magenta=%g", m); return -1; } if (y < 0.0 || y > 1.0) { dpx_warning("Invalid color value specified: yellow=%g", y); return -1; } if (k < 0.0 || k > 1.0) { dpx_warning("Invalid color value specified: black=%g", k); return -1; } color->values[0] = c; color->values[1] = m; color->values[2] = y; color->values[3] = k; color->res_id = -1; color->type = PDF_COLORSPACE_TYPE_CMYK; color->num_components = 4; color->spot_color_name = NULL; return 0; } int pdf_color_graycolor (pdf_color *color, double g) { assert(color); if (g < 0.0 || g > 1.0) { dpx_warning("Invalid color value specified: gray=%g", g); return -1; } color->values[0] = g; color->res_id = -1; color->type = PDF_COLORSPACE_TYPE_GRAY; color->num_components = 1; color->spot_color_name = NULL; return 0; } int pdf_color_spotcolor (pdf_color *color, char* name, double c) { assert(color); if (c < 0.0 || c > 1.0) { dpx_warning("Invalid color value specified: grade=%g", c); return -1; } color->values[0] = c; color->values[1] = 0.0; /* Dummy */ color->res_id = 1; /* ??? */ color->type = PDF_COLORSPACE_TYPE_SPOT; color->num_components = 2; color->spot_color_name = name; return 0; } void pdf_color_copycolor (pdf_color *color1, const pdf_color *color2) { assert(color1 && color2); memcpy(color1, color2, sizeof(pdf_color)); } /* Brighten up a color. f == 0 means no change, f == 1 means white. */ void pdf_color_brighten_color (pdf_color *dst, const pdf_color *src, double f) { assert(dst && src); if (src->type != PDF_COLORSPACE_TYPE_RGB && src->type != PDF_COLORSPACE_TYPE_CMYK && src->type != PDF_COLORSPACE_TYPE_GRAY) { pdf_color_copycolor(dst, src); return; } if (f == 1.0) { pdf_color_white(dst); } else { double f0, f1; int n; pdf_color_copycolor(dst, src); n = src->num_components; f1 = n == 4 ? 0.0 : f; /* n == 4 is CMYK, others are RGB and Gray */ f0 = 1.0-f; while (n--) dst->values[n] = f0 * src->values[n] + f1; } } /* TODO: remove "is_white"... * pdfdoc.c only use this but not necessary if we have a flag have_bgcolor * to indicate if bg color was set. */ bool pdf_color_is_white (const pdf_color *color) { int n; double f; assert(color); switch (color->type) { case PDF_COLORSPACE_TYPE_GRAY: case PDF_COLORSPACE_TYPE_RGB: f = 1.0; break; case PDF_COLORSPACE_TYPE_CMYK: f = 0.0; break; default: return false; } n = color->num_components; while (n--) if (color->values[n] != f) return false; return true; } /* TODO: make_resource_name() in pdfresource.c with configurable prefix. */ int pdf_color_set_color (const pdf_color *color, char *buffer, size_t buffer_len,char mask) { int len = 0; int i; { size_t estimate = 0; if (color->num_components > 0) { estimate += 5 * (color->num_components + 1) + 4; /* Assuming color values [0, 1]... */ } estimate += strlen(" /DeiceGray CS"); if (estimate + 1 > buffer_len) { dpx_warning("Not enough buffer space allocated for writing set_color op..."); return 0; } } switch (pdf_color_type(color)) { case PDF_COLORSPACE_TYPE_DEVICEGRAY: { len += sprintf(buffer+len, " /DeviceGray %c%c", 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c", 'S' | mask, 'C' | mask); } break; case PDF_COLORSPACE_TYPE_DEVICERGB: { len += sprintf(buffer+len, " /DeviceRGB %c%c", 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c", 'S' | mask, 'C' | mask); } break; case PDF_COLORSPACE_TYPE_DEVICECMYK: { len += sprintf(buffer+len, " /DeviceCMYK %c%c", 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c", 'S' | mask, 'C' | mask); } break; case PDF_COLORSPACE_TYPE_GRAY: { for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c", 'G' | mask); } break; case PDF_COLORSPACE_TYPE_RGB: { for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c", 'R' | mask, 'G' | mask); } break; case PDF_COLORSPACE_TYPE_CMYK: { for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c", 'K' | mask); } break; case PDF_COLORSPACE_TYPE_SPOT: { len = sprintf(buffer+len, " /%s %c%c %g %c%c", color->spot_color_name, 'C' | mask, 'S' | mask, ROUND(color->values[0], 0.001), 'S' | mask, 'C' | mask); } break; case PDF_COLORSPACE_TYPE_CALGRAY: case PDF_COLORSPACE_TYPE_CALRGB: case PDF_COLORSPACE_TYPE_LAB: case PDF_COLORSPACE_TYPE_INDEXED: { char res_name[16]; snprintf(res_name, 16, "XC%d", color->res_id & 0xffff); /* TODO: Upper 16bits for category ID. See, pdfresource.c */ res_name[15] = 0; len += sprintf(buffer+len, " /%s %c%c", res_name, 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c", 'S' | mask, 'C' | mask); pdf_doc_add_page_resource("ColorSpace", res_name, pdf_get_resource_reference(color->res_id)); } break; case PDF_COLORSPACE_TYPE_PATTERN: { char res_name[16]; if (color->res_id < 0) { len += sprintf(buffer+len, " /Pattern %c%c", 'C' | mask, 'S' | mask); /* no color value but just a name */ } else { snprintf(res_name, 16, "XC%d", color->res_id & 0xffff); /* TODO: Upper 16bits for category ID. See, pdfresource.c */ res_name[15] = 0; len += sprintf(buffer+len, " /%s %c%c", res_name, 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } pdf_doc_add_page_resource("ColorSpace", res_name, pdf_get_resource_reference(color->res_id)); } snprintf(res_name, 16, "XP%d", color->pattern_id & 0xffff); /* TODO: see below */ res_name[15] = 0; len += sprintf(buffer+len, " /%s %c%c%c", res_name, 'S' | mask, 'C' | mask, 'N' | mask); pdf_doc_add_page_resource("Pattern", res_name, pdf_get_resource_reference(color->pattern_id)); } break; default: { char res_name[16]; snprintf(res_name, 8, "XC%d", color->res_id & 0xffff); /* TODO: Upper 16bits for category ID. See, pdfresource.c */ res_name[8] = 0; len += sprintf(buffer+len, " /%s %c%c", res_name, 'C' | mask, 'S' | mask); for (i = 0; i < color->num_components; i++) { len += sprintf(buffer+len, " %g", ROUND(color->values[i], 0.001)); } len += sprintf(buffer+len, " %c%c%c", 'S' | mask, 'C' | mask, 'N' | mask); pdf_doc_add_page_resource("ColorSpace", res_name, pdf_get_resource_reference(color->res_id)); } } return len; } pdf_color current_fill = { -1, PDF_COLORSPACE_TYPE_GRAY, 1, NULL, {0.0}, -1 }; pdf_color current_stroke = { -1, PDF_COLORSPACE_TYPE_GRAY, 1, NULL, {0.0}, -1 }; /* * This routine is not a real color matching. */ int pdf_color_compare (const pdf_color *color1, const pdf_color *color2) { int n; /* Tectonic: the logic in upstream cannot be right; I think our * modified version gives what's intended? */ if ((color1->type != PDF_COLORSPACE_TYPE_GRAY && color1->type != PDF_COLORSPACE_TYPE_RGB && color1->type != PDF_COLORSPACE_TYPE_CMYK && color1->type != PDF_COLORSPACE_TYPE_SPOT) || (color2->type != PDF_COLORSPACE_TYPE_GRAY && color2->type != PDF_COLORSPACE_TYPE_RGB && color2->type != PDF_COLORSPACE_TYPE_CMYK && color2->type != PDF_COLORSPACE_TYPE_SPOT) || color1->type != color2->type) { return -1; } n = color1->num_components; while (--n >= 0) { if (color1->values[n] != color2->values[n]) return -1; } if (color1->spot_color_name && color2->spot_color_name) return strcmp(color1->spot_color_name, color2->spot_color_name); return 0; } /* Dvipdfm special */ pdf_color default_color = { -1, PDF_COLORSPACE_TYPE_GRAY, 1, NULL, {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0}, -1 }; #define DEV_COLOR_STACK_MAX 128 static struct { int current; pdf_color stroke[DEV_COLOR_STACK_MAX]; pdf_color fill[DEV_COLOR_STACK_MAX]; } color_stack; void pdf_color_clear_stack (void) { if (color_stack.current > 0) { dpx_warning("You've mistakenly made a global color change within nested colors."); } while (color_stack.current--) { free(color_stack.stroke[color_stack.current].spot_color_name); free(color_stack.fill[color_stack.current].spot_color_name); } color_stack.current = 0; pdf_color_black(color_stack.stroke); pdf_color_black(color_stack.fill); return; } void pdf_color_set (pdf_color *sc, pdf_color *fc) { pdf_color_copycolor(&color_stack.stroke[color_stack.current], sc); pdf_color_copycolor(&color_stack.fill[color_stack.current], fc); pdf_dev_reset_color(1); } void pdf_color_push (pdf_color *sc, pdf_color *fc) { if (color_stack.current >= DEV_COLOR_STACK_MAX-1) { dpx_warning("Color stack overflow. Just ignore."); } else { color_stack.current++; pdf_color_set(sc, fc); } return; } void pdf_color_pop (void) { if (color_stack.current <= 0) { dpx_warning("Color stack underflow. Just ignore."); } else { color_stack.current--; pdf_dev_reset_color(1); } return; } void pdf_color_get_current (pdf_color **sc, pdf_color **fc) { *sc = &color_stack.stroke[color_stack.current]; *fc = &color_stack.fill[color_stack.current]; return; } /***************************** COLOR SPACE *****************************/ /* Currently only for ICCBased color loaded while reading images */ static int pdf_colorspace_defineresource (const char *ident, int subtype, void *cdata, pdf_obj *resource); static int pdf_colorspace_findresource (const char *ident, int subtype, const void *cdata); static unsigned char nullbytes16[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; static struct { int major; int minor; } icc_versions[] = { {0, 0}, /* PDF-1.0, we don't support them */ {0, 0}, /* PDF-1.1, we don't support them */ {0, 0}, /* PDF-1.2, we don't support them */ {0x02, 0x10}, /* PDF-1.3 */ {0x02, 0x20}, /* PDF-1.4 */ {0x04, 0x00}, /* PDF-1.5 */ {0x04, 0x00}, /* PDF-1.6 */ {0x04, 0x20}, /* PDF-1.7 */ {0x04, 0x20}, /* Dummy(1.8)*/ {0x04, 0x20}, /* Dummy(1.9) */ {0x04, 0x20} /* PDF-2.0 */ }; static int iccp_version_supported (int major, int minor) { int idx; idx = pdf_get_version() - 10; if (idx < 11) { if (icc_versions[idx].major < major) return 0; else if (icc_versions[idx].major == major && icc_versions[idx].minor < minor) return 0; else { return 1; } } return 0; } typedef uint32_t iccSig; static iccSig str2iccSig (const void *s) { const char *p; p = (const char *) s; return (iccSig) ((p[0]<<24)|(p[1]<<16)|(p[2]<<8)|p[3]); } typedef struct { int32_t X, Y, Z; /* s15Fixed16Number */ } iccXYZNumber; typedef struct { int size; iccSig CMMType; int32_t version; iccSig devClass; iccSig colorSpace; iccSig PCS; /* Profile Connection Space */ char creationDate[12]; iccSig acsp; iccSig platform; char flags[4]; iccSig devMnfct; iccSig devModel; char devAttr[8]; int32_t intent; iccXYZNumber illuminant; iccSig creator; unsigned char ID[16]; /* MD5 checksum with Rendering intent, * Header attrs, Profile ID fields are * set to zeros. */ /* 28 bytes reserved - must be set to zeros */ } iccHeader; #define iccNullSig 0 static void iccp_init_iccHeader (iccHeader *icch) { assert(icch); icch->size = 0; icch->CMMType = iccNullSig; icch->version = 0xFFFFFF; icch->devClass = iccNullSig; icch->colorSpace = iccNullSig; icch->PCS = iccNullSig; memset(icch->creationDate, 0, 12); icch->acsp = str2iccSig("ascp"); icch->platform = iccNullSig; memset(icch->flags, 0, 4); icch->devMnfct = iccNullSig; icch->devModel = iccNullSig; memset(icch->devAttr, 0, 8); icch->intent = 0; icch->illuminant.X = 0; icch->illuminant.Y = 0; icch->illuminant.Z = 0; icch->creator = iccNullSig; memset(icch->ID, 0, 16); } #define ICC_INTENT_TYPE(n) ((int) (((n) >> 16) & 0xff)) #define ICC_INTENT_PERCEPTUAL 0 #define ICC_INTENT_RELATIVE 1 #define ICC_INTENT_SATURATION 2 #define ICC_INTENT_ABSOLUTE 3 /* * In ICC profile stream dicrionary, there is /Range whose values must * "match the information in the profile". But where is those values in? * * How should I treat rendering intent? */ struct iccbased_cdata { int32_t sig; /* 'i' 'c' 'c' 'b' */ unsigned char checksum[16]; /* 16 bytes MD5 Checksum */ int colorspace; /* input colorspace: * RGB, Gray, CMYK, (Lab?) */ int alternate; /* alternate colorspace (id), unused */ }; #define check_sig(d,p,q,r,s) ((d) && (d)->sig == ((p)<<24|(q)<<16|(r)<<8|(s))) static void init_iccbased_cdata (struct iccbased_cdata *cdata) { assert(cdata); cdata->sig = ('i' << 24|'c' << 16|'c' << 8|'b'); memset(cdata->checksum, 0, 16); cdata->colorspace = PDF_COLORSPACE_TYPE_INVALID; cdata->alternate = -1; return; } static void release_iccbased_cdata (struct iccbased_cdata *cdata) { assert(check_sig(cdata, 'i', 'c', 'c', 'b')); free(cdata); } static int get_num_components_iccbased (const struct iccbased_cdata *cdata) { int num_components = 0; assert(check_sig(cdata, 'i', 'c', 'c', 'b')); switch (cdata->colorspace) { case PDF_COLORSPACE_TYPE_RGB: num_components = 3; break; case PDF_COLORSPACE_TYPE_CMYK: num_components = 4; break; case PDF_COLORSPACE_TYPE_GRAY: num_components = 1; break; case PDF_COLORSPACE_TYPE_LAB: num_components = 3; break; } return num_components; } static int compare_iccbased (const char *ident1, const struct iccbased_cdata *cdata1, const char *ident2, const struct iccbased_cdata *cdata2) { if (cdata1 && cdata2) { assert(check_sig(cdata1, 'i', 'c', 'c', 'b')); assert(check_sig(cdata2, 'i', 'c', 'c', 'b')); if (memcmp(cdata1->checksum, nullbytes16, 16) && memcmp(cdata2->checksum, nullbytes16, 16)) { return memcmp(cdata1->checksum, cdata2->checksum, 16); } if (cdata1->colorspace != cdata2->colorspace) { return (cdata1->colorspace - cdata2->colorspace); } /* Continue if checksum unknown and colorspace is same. */ } if (ident1 && ident2) return strcmp(ident1, ident2); /* No way to compare */ return -1; } int iccp_check_colorspace (int colortype, const void *profile, int proflen) { iccSig colorspace; const unsigned char *p; if (!profile || proflen < 128) return -1; p = (const unsigned char *) profile; colorspace = str2iccSig(p + 16); switch (colortype) { case PDF_COLORSPACE_TYPE_CALRGB: case PDF_COLORSPACE_TYPE_RGB: if (colorspace != str2iccSig("RGB ")) { return -1; } break; case PDF_COLORSPACE_TYPE_CALGRAY: case PDF_COLORSPACE_TYPE_GRAY: if (colorspace != str2iccSig("GRAY")) { return -1; } break; case PDF_COLORSPACE_TYPE_CMYK: if (colorspace != str2iccSig("CMYK")) { return -1; } break; default: return -1; } return 0; } pdf_obj * iccp_get_rendering_intent (const void *profile, int proflen) { pdf_obj *ri = NULL; const unsigned char *p; int32_t intent; if (!profile || proflen < 128) return NULL; p = (const unsigned char *) profile; intent = (p[64] << 24)|(p[65] << 16)|(p[66] << 8)|p[67]; switch (ICC_INTENT_TYPE(intent)) { case ICC_INTENT_SATURATION: ri = pdf_new_name("Saturation"); break; case ICC_INTENT_PERCEPTUAL: ri = pdf_new_name("Perceptual"); break; case ICC_INTENT_ABSOLUTE: ri = pdf_new_name("AbsoluteColorimetric"); break; case ICC_INTENT_RELATIVE: ri = pdf_new_name("RelativeColorimetric"); break; default: dpx_warning("Invalid rendering intent type: %d", ICC_INTENT_TYPE(intent)); ri = NULL; } return ri; } #define sget_signed_long(p) ((int32_t) ((p)[0] << 24|(p)[1] << 16|(p)[2] << 8|(p)[3])) #define sget_signed_short(p) ((short) ((p)[0] << 8|(p)[1])) #define get_iccSig(p) ((iccSig) ((p)[0] << 24|(p)[1] << 16|(p)[2] << 8|(p)[3])) static int iccp_unpack_header (iccHeader *icch, const void *profile, int proflen, int check_size) { const unsigned char *p, *endptr; if (check_size) { if (!profile || proflen < 128 || proflen % 4 != 0) { dpx_warning("Profile size: %d", proflen); return -1; } } p = (const unsigned char *) profile; endptr = p + 128; icch->size = sget_signed_long(p); if (check_size) { if (icch->size != proflen) { dpx_warning("ICC Profile size: %d(header) != %d", icch->size, proflen); return -1; } } p += 4; icch->CMMType = str2iccSig(p); p += 4; icch->version = sget_signed_long(p); p += 4; icch->devClass = str2iccSig(p); p += 4; icch->colorSpace = str2iccSig(p); p += 4; icch->PCS = str2iccSig(p); p += 4; memcpy(icch->creationDate, p, 12); p += 12; icch->acsp = str2iccSig(p); /* acsp */ if (icch->acsp != str2iccSig("acsp")) { dpx_warning("Invalid ICC profile: not \"acsp\" - %c%c%c%c ", p[0], p[1], p[2], p[3]); return -1; } p += 4; icch->platform = str2iccSig(p); p += 4; memcpy(icch->flags, p, 4); p += 4; icch->devMnfct = str2iccSig(p); p += 4; icch->devModel = str2iccSig(p); p += 4; memcpy(icch->devAttr, p, 8); p += 8; icch->intent = (p[0] << 24)|(p[1] << 16)|(p[2] << 8)|p[3]; p += 4; icch->illuminant.X = sget_signed_long(p); p += 4; icch->illuminant.Y = sget_signed_long(p); p += 4; icch->illuminant.Z = sget_signed_long(p); p += 4; icch->creator = str2iccSig(p); p += 4; memcpy(icch->ID, p, 16); p += 16; /* 28 bytes reserved - must be set to zeros */ for (; p < endptr; p++) { if (*p != '\0') { dpx_warning("Reserved pad not zero: %02x (at offset %d in ICC profile header.)", *p, 128 - ((int) (endptr - p))); return -1; } } return 0; } /* MD5 checksum with Rendering intent, * Header attrs, Profile ID fields are * set to zeros. */ #define ICC_HEAD_SECT1_START 0 #define ICC_HEAD_SECT1_LENGTH 56 /* 8 bytes devAttr, 4 bytes intent */ #define ICC_HEAD_SECT2_START 68 #define ICC_HEAD_SECT2_LENGTH 16 /* 16 bytes ID (checksum) */ #define ICC_HEAD_SECT3_START 100 #define ICC_HEAD_SECT3_LENGTH 28 #include "dpx-dpxcrypt.h" static void iccp_get_checksum (unsigned char *checksum, const void *profile, int proflen) { const unsigned char *p; MD5_CONTEXT md5; p = (const unsigned char *) profile; MD5_init (&md5); MD5_write(&md5, p + ICC_HEAD_SECT1_START, ICC_HEAD_SECT1_LENGTH); MD5_write(&md5, nullbytes16, 12); MD5_write(&md5, p + ICC_HEAD_SECT2_START, ICC_HEAD_SECT2_LENGTH); MD5_write(&md5, nullbytes16, 16); MD5_write(&md5, p + ICC_HEAD_SECT3_START, ICC_HEAD_SECT3_LENGTH); /* body */ MD5_write(&md5, p + 128, proflen - 128); MD5_final(checksum, &md5); } static void print_iccp_header (iccHeader *icch, unsigned char *checksum) { int i; assert(icch); #define print_iccSig(s,t) if ((s) == 0) {\ dpx_message("pdf_color>> %s:\t(null)\n", (t)); \ } else if (!isprint(((s) >> 24) & 0xff) || \ !isprint(((s) >> 16) & 0xff) || \ !isprint(((s) >> 8) & 0xff) || \ !isprint((s) & 0xff)) { \ dpx_message("pdf_color>> %s:\t(invalid)\n", (t)); \ } else { \ dpx_message("pdf_color>> %s:\t%c%c%c%c\n", (t), \ ((s) >> 24) & 0xff, ((s) >> 16) & 0xff, \ ((s) >> 8) & 0xff, (s) & 0xff); \ } dpx_message("\n"); dpx_message("pdf_color>> ICC Profile Info\n"); dpx_message("pdf_color>> Profile Size:\t%d bytes\n", icch->size); print_iccSig(icch->CMMType, "CMM Type"); dpx_message("pdf_color>> Profile Version:\t%d.%01d.%01d\n", (icch->version >> 24) & 0xff, (icch->version >> 20) & 0x0f, (icch->version >> 16) & 0x0f); print_iccSig(icch->devClass, "Device Class"); print_iccSig(icch->colorSpace, "Color Space"); print_iccSig(icch->PCS, "Connection Space"); dpx_message("pdf_color>> Creation Date:\t"); for (i = 0; i < 12; i += 2) { if (i == 0) dpx_message("%04u", sget_unsigned_pair((unsigned char *) icch->creationDate)); else { dpx_message(":%02u", sget_unsigned_pair((unsigned char *) (&icch->creationDate[i]))); } } dpx_message("\n"); print_iccSig(icch->platform, "Primary Platform"); dpx_message("pdf_color>> Profile Flags:\t%02x:%02x:%02x:%02x\n", icch->flags[0], icch->flags[1], icch->flags[2], icch->flags[3]); print_iccSig(icch->devMnfct, "Device Mnfct"); print_iccSig(icch->devModel, "Device Model"); dpx_message("pdf_color>> Device Attr:\t"); for (i = 0; i < 8; i++) { if (i == 0) dpx_message("%02x", icch->devAttr[i]); else dpx_message(":%02x", icch->devAttr[i]); } dpx_message("\n"); dpx_message("pdf_color>> Rendering Intent:\t"); switch (ICC_INTENT_TYPE(icch->intent)) { case ICC_INTENT_SATURATION: dpx_message("Saturation"); break; case ICC_INTENT_PERCEPTUAL: dpx_message("Perceptual"); break; case ICC_INTENT_ABSOLUTE: dpx_message("Absolute Colorimetric"); break; case ICC_INTENT_RELATIVE: dpx_message("Relative Colorimetric"); break; default: dpx_message("(invalid)"); break; } dpx_message("\n"); print_iccSig(icch->creator, "Creator"); dpx_message("pdf_color>> Illuminant (XYZ):\t"); dpx_message("%.3f %.3f %.3f\n", (double) icch->illuminant.X / 0x10000, (double) icch->illuminant.Y / 0x10000, (double) icch->illuminant.Z / 0x10000); dpx_message("pdf_color>> Checksum:\t"); if (!memcmp(icch->ID, nullbytes16, 16)) { dpx_message("(null)"); } else { for (i = 0; i < 16; i++) { if (i == 0) dpx_message("%02x", icch->ID[i]); else dpx_message(":%02x", icch->ID[i]); } } dpx_message("\n"); if (checksum) { dpx_message("pdf_color>> Calculated:\t"); for (i = 0; i < 16; i++) { if (i == 0) dpx_message("%02x", checksum[i]); else dpx_message(":%02x", checksum[i]); } dpx_message("\n"); } return; } static int iccp_devClass_allowed (int dev_class) { int colormode; colormode = pdf_dev_get_param(PDF_DEV_PARAM_COLORMODE); switch (colormode) { default: if (dev_class != str2iccSig("scnr") && dev_class != str2iccSig("mntr") && dev_class != str2iccSig("prtr") && dev_class != str2iccSig("spac")) { return 0; } break; } return 1; } int iccp_load_profile (const char *ident, const void *profile, int proflen) { int cspc_id; pdf_obj *resource; pdf_obj *stream; pdf_obj *stream_dict; iccHeader icch; int colorspace; unsigned char checksum[16]; struct iccbased_cdata *cdata; iccp_init_iccHeader(&icch); if (iccp_unpack_header(&icch, profile, proflen, 1) < 0) { /* check size */ dpx_warning("Invalid ICC profile header in \"%s\"", ident); print_iccp_header(&icch, NULL); return -1; } if (!iccp_version_supported((icch.version >> 24) & 0xff, (icch.version >> 16) & 0xff)) { dpx_warning("ICC profile format spec. version %d.%01d.%01d" " not supported in current PDF version setting.", (icch.version >> 24) & 0xff, (icch.version >> 20) & 0x0f, (icch.version >> 16) & 0x0f); dpx_warning("ICC profile not embedded."); print_iccp_header(&icch, NULL); return -1; } if (!iccp_devClass_allowed(icch.devClass)) { dpx_warning("Unsupported ICC Profile Device Class:"); print_iccp_header(&icch, NULL); return -1; } if (icch.colorSpace == str2iccSig("RGB ")) { colorspace = PDF_COLORSPACE_TYPE_RGB; } else if (icch.colorSpace == str2iccSig("GRAY")) { colorspace = PDF_COLORSPACE_TYPE_GRAY; } else if (icch.colorSpace == str2iccSig("CMYK")) { colorspace = PDF_COLORSPACE_TYPE_CMYK; } else { dpx_warning("Unsupported input color space."); print_iccp_header(&icch, NULL); return -1; } iccp_get_checksum(checksum, profile, proflen); if (memcmp(icch.ID, nullbytes16, 16) && memcmp(icch.ID, checksum, 16)) { dpx_warning("Invalid ICC profile: Inconsistent checksum."); print_iccp_header(&icch, checksum); return -1; } cdata = NEW(1, struct iccbased_cdata); init_iccbased_cdata(cdata); cdata->colorspace = colorspace; memcpy(cdata->checksum, checksum, 16); cspc_id = pdf_colorspace_findresource(ident, PDF_COLORSPACE_TYPE_ICCBASED, cdata); if (cspc_id >= 0) { if (dpx_conf.verbose_level > 0) dpx_message("(ICCP:[id=%d])", cspc_id); release_iccbased_cdata(cdata); return cspc_id; } if (dpx_conf.verbose_level > 1) { print_iccp_header(&icch, checksum); } resource = pdf_new_array(); stream = pdf_new_stream(STREAM_COMPRESS); pdf_add_array(resource, pdf_new_name("ICCBased")); pdf_add_array(resource, pdf_ref_obj (stream)); stream_dict = pdf_stream_dict(stream); pdf_add_dict(stream_dict, pdf_new_name("N"), pdf_new_number(get_num_components_iccbased(cdata))); pdf_add_stream (stream, profile, proflen); pdf_release_obj(stream); cspc_id = pdf_colorspace_defineresource(ident, PDF_COLORSPACE_TYPE_ICCBASED, cdata, resource); return cspc_id; } typedef struct { char *ident; int subtype; pdf_obj *resource; pdf_obj *reference; void *cdata; } pdf_colorspace; static struct { unsigned int count; unsigned int capacity; pdf_colorspace *colorspaces; } cspc_cache = { 0, 0, NULL }; int pdf_colorspace_findresource (const char *ident, int type, const void *cdata) { pdf_colorspace *colorspace; int cspc_id, cmp = -1; for (cspc_id = 0; cmp && cspc_id < cspc_cache.count; cspc_id++) { colorspace = &cspc_cache.colorspaces[cspc_id]; if (colorspace->subtype != type) continue; switch (colorspace->subtype) { case PDF_COLORSPACE_TYPE_ICCBASED: cmp = compare_iccbased(ident, cdata, colorspace->ident, colorspace->cdata); break; } if (!cmp) return cspc_id; } return -1; /* not found */ } static void pdf_init_colorspace_struct (pdf_colorspace *colorspace) { assert(colorspace); colorspace->ident = NULL; colorspace->subtype = PDF_COLORSPACE_TYPE_INVALID; colorspace->resource = NULL; colorspace->reference = NULL; colorspace->cdata = NULL; return; } static void pdf_clean_colorspace_struct (pdf_colorspace *colorspace) { assert(colorspace); free(colorspace->ident); pdf_release_obj(colorspace->resource); pdf_release_obj(colorspace->reference); colorspace->resource = NULL; colorspace->reference = NULL; if (colorspace->cdata) { switch (colorspace->subtype) { case PDF_COLORSPACE_TYPE_ICCBASED: release_iccbased_cdata(colorspace->cdata); break; } } colorspace->cdata = NULL; colorspace->subtype = PDF_COLORSPACE_TYPE_INVALID; return; } static void pdf_flush_colorspace (pdf_colorspace *colorspace) { assert(colorspace); pdf_release_obj(colorspace->resource); pdf_release_obj(colorspace->reference); colorspace->resource = NULL; colorspace->reference = NULL; } int pdf_colorspace_defineresource (const char *ident, int subtype, void *cdata, pdf_obj *resource) { int cspc_id; pdf_colorspace *colorspace; if (cspc_cache.count >= cspc_cache.capacity) { cspc_cache.capacity += 16; cspc_cache.colorspaces = RENEW(cspc_cache.colorspaces, cspc_cache.capacity, pdf_colorspace); } cspc_id = cspc_cache.count; colorspace = &cspc_cache.colorspaces[cspc_id]; pdf_init_colorspace_struct(colorspace); if (ident) { colorspace->ident = NEW(strlen(ident) + 1, char); strcpy(colorspace->ident, ident); } colorspace->subtype = subtype; colorspace->cdata = cdata; colorspace->resource = resource; if (dpx_conf.verbose_level > 0) { dpx_message("(ColorSpace:%s", ident); if (dpx_conf.verbose_level > 1) { switch (subtype) { case PDF_COLORSPACE_TYPE_ICCBASED: dpx_message("[ICCBased]"); break; case PDF_COLORSPACE_TYPE_CALRGB: dpx_message("[CalRGB]"); break; case PDF_COLORSPACE_TYPE_CALGRAY: dpx_message("[CalGray]"); break; } } dpx_message(")"); } cspc_cache.count++; return cspc_id; } pdf_obj * pdf_get_colorspace_reference (int cspc_id) { pdf_colorspace *colorspace; colorspace = &cspc_cache.colorspaces[cspc_id]; if (!colorspace->reference) { colorspace->reference = pdf_ref_obj(colorspace->resource); pdf_release_obj(colorspace->resource); /* .... */ colorspace->resource = NULL; } return pdf_link_obj(colorspace->reference); } void pdf_init_colors (void) { cspc_cache.count = 0; cspc_cache.capacity = 0; cspc_cache.colorspaces = NULL; } void pdf_close_colors (void) { unsigned int i; for (i = 0; i < cspc_cache.count; i++) { pdf_colorspace *colorspace; colorspace = &cspc_cache.colorspaces[i]; pdf_flush_colorspace(colorspace); pdf_clean_colorspace_struct(colorspace); } cspc_cache.colorspaces = mfree(cspc_cache.colorspaces); cspc_cache.count = cspc_cache.capacity = 0; } #define PDF_COLORSPACE_FAMILY_DEVICE 0 #define PDF_COLORSPACE_FAMILY_CIEBASED 1 #define PDF_COLORSPACE_FAMILY_SPECIAL 2