1 /* 2 * PWG media name API implementation for CUPS. 3 * 4 * Copyright 2009-2017 by Apple Inc. 5 * 6 * These coded instructions, statements, and computer programs are the 7 * property of Apple Inc. and are protected by Federal copyright 8 * law. Distribution and use rights are outlined in the file "LICENSE.txt" 9 * which should have been included with this file. If this file is 10 * missing or damaged, see the license at "http://www.cups.org/". 11 * 12 * This file is subject to the Apple OS-Developed Software exception. 13 */ 14 15 /* 16 * Include necessary headers... 17 */ 18 19 #include "cups-private.h" 20 #include <math.h> 21 22 23 /* 24 * Local macros... 25 */ 26 27 #define _PWG_MEDIA_IN(p,l,a,x,y) {p, l, a, (int)(x * 2540), (int)(y * 2540)} 28 #define _PWG_MEDIA_MM(p,l,a,x,y) {p, l, a, (int)(x * 100), (int)(y * 100)} 29 30 31 /* 32 * Local functions... 33 */ 34 35 static int pwg_compare_legacy(pwg_media_t *a, pwg_media_t *b); 36 static int pwg_compare_pwg(pwg_media_t *a, pwg_media_t *b); 37 static int pwg_compare_ppd(pwg_media_t *a, pwg_media_t *b); 38 static char *pwg_format_inches(char *buf, size_t bufsize, int val); 39 static char *pwg_format_millimeters(char *buf, size_t bufsize, int val); 40 static int pwg_scan_measurement(const char *buf, char **bufptr, int numer, int denom); 41 42 43 /* 44 * Local globals... 45 */ 46 47 static pwg_media_t const cups_pwg_media[] = 48 { /* Media size lookup table */ 49 /* North American Standard Sheet Media Sizes */ 50 _PWG_MEDIA_IN("na_index-3x5_3x5in", NULL, "3x5", 3, 5), 51 _PWG_MEDIA_IN("na_personal_3.625x6.5in", NULL, "EnvPersonal", 3.625, 6.5), 52 _PWG_MEDIA_IN("na_monarch_3.875x7.5in", "monarch-envelope", "EnvMonarch", 3.875, 7.5), 53 _PWG_MEDIA_IN("na_number-9_3.875x8.875in", "na-number-9-envelope", "Env9", 3.875, 8.875), 54 _PWG_MEDIA_IN("na_index-4x6_4x6in", NULL, "4x6", 4, 6), 55 _PWG_MEDIA_IN("na_number-10_4.125x9.5in", "na-number-10-envelope", "Env10", 4.125, 9.5), 56 _PWG_MEDIA_IN("na_a2_4.375x5.75in", NULL, "EnvA2", 4.375, 5.75), 57 _PWG_MEDIA_IN("na_number-11_4.5x10.375in", NULL, "Env11", 4.5, 10.375), 58 _PWG_MEDIA_IN("na_number-12_4.75x11in", NULL, "Env12", 4.75, 11), 59 _PWG_MEDIA_IN("na_5x7_5x7in", NULL, "5x7", 5, 7), 60 _PWG_MEDIA_IN("na_index-5x8_5x8in", NULL, "5x8", 5, 8), 61 _PWG_MEDIA_IN("na_number-14_5x11.5in", NULL, "Env14", 5, 11.5), 62 _PWG_MEDIA_IN("na_invoice_5.5x8.5in", "invoice", "Statement", 5.5, 8.5), 63 _PWG_MEDIA_IN("na_index-4x6-ext_6x8in", NULL, "6x8", 6, 8), 64 _PWG_MEDIA_IN("na_6x9_6x9in", "na-6x9-envelope", "6x9", 6, 9), 65 _PWG_MEDIA_IN("na_c5_6.5x9.5in", NULL, "6.5x9.5", 6.5, 9.5), 66 _PWG_MEDIA_IN("na_7x9_7x9in", "na-7x9-envelope", "7x9", 7, 9), 67 _PWG_MEDIA_IN("na_executive_7.25x10.5in", "executive", "Executive", 7.25, 10.5), 68 _PWG_MEDIA_IN("na_govt-letter_8x10in", "na-8x10", "8x10", 8, 10), 69 _PWG_MEDIA_IN("na_govt-legal_8x13in", NULL, "8x13", 8, 13), 70 _PWG_MEDIA_IN("na_quarto_8.5x10.83in", "quarto", "Quarto", 8.5, 10.83), 71 _PWG_MEDIA_IN("na_letter_8.5x11in", "na-letter", "Letter", 8.5, 11), 72 _PWG_MEDIA_IN("na_fanfold-eur_8.5x12in", NULL, "FanFoldGerman", 8.5, 12), 73 _PWG_MEDIA_IN("na_letter-plus_8.5x12.69in", NULL, "LetterPlus", 8.5, 12.69), 74 _PWG_MEDIA_IN("na_foolscap_8.5x13in", NULL, "FanFoldGermanLegal", 8.5, 13), 75 _PWG_MEDIA_IN("na_oficio_8.5x13.4in", NULL, "Oficio", 8.5, 13.4), 76 _PWG_MEDIA_IN("na_legal_8.5x14in", "na-legal", "Legal", 8.5, 14), 77 _PWG_MEDIA_IN("na_super-a_8.94x14in", NULL, "SuperA", 8.94, 14), 78 _PWG_MEDIA_IN("na_9x11_9x11in", "na-9x11-envelope", "9x11", 9, 11), 79 _PWG_MEDIA_IN("na_arch-a_9x12in", "arch-a", "ARCHA", 9, 12), 80 _PWG_MEDIA_IN("na_letter-extra_9.5x12in", NULL, "LetterExtra", 9.5, 12), 81 _PWG_MEDIA_IN("na_legal-extra_9.5x15in", NULL, "LegalExtra", 9.5, 15), 82 _PWG_MEDIA_IN("na_10x11_10x11in", NULL, "10x11", 10, 11), 83 _PWG_MEDIA_IN("na_10x13_10x13in", "na-10x13-envelope", "10x13", 10, 13), 84 _PWG_MEDIA_IN("na_10x14_10x14in", "na-10x14-envelope", "10x14", 10, 14), 85 _PWG_MEDIA_IN("na_10x15_10x15in", "na-10x15-envelope", "10x15", 10, 15), 86 _PWG_MEDIA_IN("na_11x12_11x12in", NULL, "11x12", 11, 12), 87 _PWG_MEDIA_IN("na_edp_11x14in", NULL, "11x14", 11, 14), 88 _PWG_MEDIA_IN("na_fanfold-us_11x14.875in", NULL, "11x14.875", 11, 14.875), 89 _PWG_MEDIA_IN("na_11x15_11x15in", NULL, "11x15", 11, 15), 90 _PWG_MEDIA_IN("na_ledger_11x17in", "tabloid", "Tabloid", 11, 17), 91 _PWG_MEDIA_IN("na_eur-edp_12x14in", NULL, NULL, 12, 14), 92 _PWG_MEDIA_IN("na_arch-b_12x18in", "arch-b", "ARCHB", 12, 18), 93 _PWG_MEDIA_IN("na_12x19_12x19in", NULL, "12x19", 12, 19), 94 _PWG_MEDIA_IN("na_b-plus_12x19.17in", NULL, "SuperB", 12, 19.17), 95 _PWG_MEDIA_IN("na_super-b_13x19in", "super-b", "13x19", 13, 19), 96 _PWG_MEDIA_IN("na_c_17x22in", "c", "AnsiC", 17, 22), 97 _PWG_MEDIA_IN("na_arch-c_18x24in", "arch-c", "ARCHC", 18, 24), 98 _PWG_MEDIA_IN("na_d_22x34in", "d", "AnsiD", 22, 34), 99 _PWG_MEDIA_IN("na_arch-d_24x36in", "arch-d", "ARCHD", 24, 36), 100 _PWG_MEDIA_IN("asme_f_28x40in", "f", "28x40", 28, 40), 101 _PWG_MEDIA_IN("na_wide-format_30x42in", NULL, "30x42", 30, 42), 102 _PWG_MEDIA_IN("na_e_34x44in", "e", "AnsiE", 34, 44), 103 _PWG_MEDIA_IN("na_arch-e_36x48in", "arch-e", "ARCHE", 36, 48), 104 _PWG_MEDIA_IN("na_f_44x68in", NULL, "AnsiF", 44, 68), 105 106 /* ISO Standard Sheet Media Sizes */ 107 _PWG_MEDIA_MM("iso_a10_26x37mm", "iso-a10", "A10", 26, 37), 108 _PWG_MEDIA_MM("iso_a9_37x52mm", "iso-a9", "A9", 37, 52), 109 _PWG_MEDIA_MM("iso_a8_52x74mm", "iso-a8", "A8", 52, 74), 110 _PWG_MEDIA_MM("iso_a7_74x105mm", "iso-a7", "A7", 74, 105), 111 _PWG_MEDIA_MM("iso_a6_105x148mm", "iso-a6", "A6", 105, 148), 112 _PWG_MEDIA_MM("iso_a5_148x210mm", "iso-a5", "A5", 148, 210), 113 _PWG_MEDIA_MM("iso_a5-extra_174x235mm", NULL, "A5Extra", 174, 235), 114 _PWG_MEDIA_MM("iso_a4_210x297mm", "iso-a4", "A4", 210, 297), 115 _PWG_MEDIA_MM("iso_a4-tab_225x297mm", NULL, "A4Tab", 225, 297), 116 _PWG_MEDIA_MM("iso_a4-extra_235.5x322.3mm", NULL, "A4Extra", 235.5, 322.3), 117 _PWG_MEDIA_MM("iso_a3_297x420mm", "iso-a3", "A3", 297, 420), 118 _PWG_MEDIA_MM("iso_a4x3_297x630mm", "iso-a4x3", "A4x3", 297, 630), 119 _PWG_MEDIA_MM("iso_a4x4_297x841mm", "iso-a4x4", "A4x4", 297, 841), 120 _PWG_MEDIA_MM("iso_a4x5_297x1051mm", "iso-a4x5", "A4x5", 297, 1051), 121 _PWG_MEDIA_MM("iso_a4x6_297x1261mm", "iso-a4x6", "A4x6", 297, 1261), 122 _PWG_MEDIA_MM("iso_a4x7_297x1471mm", "iso-a4x7", "A4x7", 297, 1471), 123 _PWG_MEDIA_MM("iso_a4x8_297x1682mm", "iso-a4x8", "A4x8", 297, 1682), 124 _PWG_MEDIA_MM("iso_a4x9_297x1892mm", "iso-a4x9", "A4x9", 297, 1892), 125 _PWG_MEDIA_MM("iso_a3-extra_322x445mm", "iso-a3-extra", "A3Extra", 322, 445), 126 _PWG_MEDIA_MM("iso_a2_420x594mm", "iso-a2", "A2", 420, 594), 127 _PWG_MEDIA_MM("iso_a3x3_420x891mm", "iso-a3x3", "A3x3", 420, 891), 128 _PWG_MEDIA_MM("iso_a3x4_420x1189mm", "iso-a3x4", "A3x4", 420, 1189), 129 _PWG_MEDIA_MM("iso_a3x5_420x1486mm", "iso-a3x5", "A3x6", 420, 1486), 130 _PWG_MEDIA_MM("iso_a3x6_420x1783mm", "iso-a3x6", "A3x6", 420, 1783), 131 _PWG_MEDIA_MM("iso_a3x7_420x2080mm", "iso-a3x7", "A3x7", 420, 2080), 132 _PWG_MEDIA_MM("iso_a1_594x841mm", "iso-a1", "A1", 594, 841), 133 _PWG_MEDIA_MM("iso_a2x3_594x1261mm", "iso-a2x3", "A2x3", 594, 1261), 134 _PWG_MEDIA_MM("iso_a2x4_594x1682mm", "iso-a2x4", "A2x4", 594, 1682), 135 _PWG_MEDIA_MM("iso_a2x5_594x2102mm", "iso-a2x5", "A2x5", 594, 2102), 136 _PWG_MEDIA_MM("iso_a0_841x1189mm", "iso-a0", "A0", 841, 1189), 137 _PWG_MEDIA_MM("iso_a1x3_841x1783mm", "iso-a1x3", "A1x3", 841, 1783), 138 _PWG_MEDIA_MM("iso_a1x4_841x2378mm", "iso-a1x4", "A1x4", 841, 2378), 139 _PWG_MEDIA_MM("iso_2a0_1189x1682mm", NULL, "1189x1682mm", 1189, 1682), 140 _PWG_MEDIA_MM("iso_a0x3_1189x2523mm", NULL, "A0x3", 1189, 2523), 141 _PWG_MEDIA_MM("iso_b10_31x44mm", "iso-b10", "ISOB10", 31, 44), 142 _PWG_MEDIA_MM("iso_b9_44x62mm", "iso-b9", "ISOB9", 44, 62), 143 _PWG_MEDIA_MM("iso_b8_62x88mm", "iso-b8", "ISOB8", 62, 88), 144 _PWG_MEDIA_MM("iso_b7_88x125mm", "iso-b7", "ISOB7", 88, 125), 145 _PWG_MEDIA_MM("iso_b6_125x176mm", "iso-b6", "ISOB6", 125, 176), 146 _PWG_MEDIA_MM("iso_b6c4_125x324mm", NULL, "125x324mm", 125, 324), 147 _PWG_MEDIA_MM("iso_b5_176x250mm", "iso-b5", "ISOB5", 176, 250), 148 _PWG_MEDIA_MM("iso_b5-extra_201x276mm", NULL, "ISOB5Extra", 201, 276), 149 _PWG_MEDIA_MM("iso_b4_250x353mm", "iso-b4", "ISOB4", 250, 353), 150 _PWG_MEDIA_MM("iso_b3_353x500mm", "iso-b3", "ISOB3", 353, 500), 151 _PWG_MEDIA_MM("iso_b2_500x707mm", "iso-b2", "ISOB2", 500, 707), 152 _PWG_MEDIA_MM("iso_b1_707x1000mm", "iso-b1", "ISOB1", 707, 1000), 153 _PWG_MEDIA_MM("iso_b0_1000x1414mm", "iso-b0", "ISOB0", 1000, 1414), 154 _PWG_MEDIA_MM("iso_c10_28x40mm", "iso-c10", "EnvC10", 28, 40), 155 _PWG_MEDIA_MM("iso_c9_40x57mm", "iso-c9", "EnvC9", 40, 57), 156 _PWG_MEDIA_MM("iso_c8_57x81mm", "iso-c8", "EnvC8", 57, 81), 157 _PWG_MEDIA_MM("iso_c7_81x114mm", "iso-c7", "EnvC7", 81, 114), 158 _PWG_MEDIA_MM("iso_c7c6_81x162mm", NULL, "EnvC76", 81, 162), 159 _PWG_MEDIA_MM("iso_c6_114x162mm", "iso-c6", "EnvC6", 114, 162), 160 _PWG_MEDIA_MM("iso_c6c5_114x229mm", NULL, "EnvC65", 114, 229), 161 _PWG_MEDIA_MM("iso_c5_162x229mm", "iso-c5", "EnvC5", 162, 229), 162 _PWG_MEDIA_MM("iso_c4_229x324mm", "iso-c4", "EnvC4", 229, 324), 163 _PWG_MEDIA_MM("iso_c3_324x458mm", "iso-c3", "EnvC3", 324, 458), 164 _PWG_MEDIA_MM("iso_c2_458x648mm", "iso-c2", "EnvC2", 458, 648), 165 _PWG_MEDIA_MM("iso_c1_648x917mm", "iso-c1", "EnvC1", 648, 917), 166 _PWG_MEDIA_MM("iso_c0_917x1297mm", "iso-c0", "EnvC0", 917, 1297), 167 _PWG_MEDIA_MM("iso_dl_110x220mm", "iso-designated", "EnvDL", 110, 220), 168 _PWG_MEDIA_MM("iso_ra4_215x305mm", "iso-ra4", "RA4", 215, 305), 169 _PWG_MEDIA_MM("iso_sra4_225x320mm", "iso-sra4", "SRA4", 225, 320), 170 _PWG_MEDIA_MM("iso_ra3_305x430mm", "iso-ra3", "RA3", 305, 430), 171 _PWG_MEDIA_MM("iso_sra3_320x450mm", "iso-sra3", "SRA3", 320, 450), 172 _PWG_MEDIA_MM("iso_ra2_430x610mm", "iso-ra2", "RA2", 430, 610), 173 _PWG_MEDIA_MM("iso_sra2_450x640mm", "iso-sra2", "SRA2", 450, 640), 174 _PWG_MEDIA_MM("iso_ra1_610x860mm", "iso-ra1", "RA1", 610, 860), 175 _PWG_MEDIA_MM("iso_sra1_640x900mm", "iso-sra1", "SRA1", 640, 900), 176 _PWG_MEDIA_MM("iso_ra0_860x1220mm", "iso-ra0", "RA0", 860, 1220), 177 _PWG_MEDIA_MM("iso_sra0_900x1280mm", "iso-sra0", "SRA0", 900, 1280), 178 179 /* Japanese Standard Sheet Media Sizes */ 180 _PWG_MEDIA_MM("jis_b10_32x45mm", "jis-b10", "B10", 32, 45), 181 _PWG_MEDIA_MM("jis_b9_45x64mm", "jis-b9", "B9", 45, 64), 182 _PWG_MEDIA_MM("jis_b8_64x91mm", "jis-b8", "B8", 64, 91), 183 _PWG_MEDIA_MM("jis_b7_91x128mm", "jis-b7", "B7", 91, 128), 184 _PWG_MEDIA_MM("jis_b6_128x182mm", "jis-b6", "B6", 128, 182), 185 _PWG_MEDIA_MM("jis_b5_182x257mm", "jis-b5", "B5", 182, 257), 186 _PWG_MEDIA_MM("jis_b4_257x364mm", "jis-b4", "B4", 257, 364), 187 _PWG_MEDIA_MM("jis_b3_364x515mm", "jis-b3", "B3", 364, 515), 188 _PWG_MEDIA_MM("jis_b2_515x728mm", "jis-b2", "B2", 515, 728), 189 _PWG_MEDIA_MM("jis_b1_728x1030mm", "jis-b1", "B1", 728, 1030), 190 _PWG_MEDIA_MM("jis_b0_1030x1456mm", "jis-b0", "B0", 1030, 1456), 191 _PWG_MEDIA_MM("jis_exec_216x330mm", NULL, "216x330mm", 216, 330), 192 _PWG_MEDIA_MM("jpn_kaku2_240x332mm", NULL, "EnvKaku2", 240, 332), 193 _PWG_MEDIA_MM("jpn_kaku3_216x277mm", NULL, "EnvKaku3", 216, 277), 194 _PWG_MEDIA_MM("jpn_kaku4_197x267mm", NULL, "EnvKaku4", 197, 267), 195 _PWG_MEDIA_MM("jpn_kaku5_190x240mm", NULL, "EnvKaku5", 190, 240), 196 _PWG_MEDIA_MM("jpn_kaku7_142x205mm", NULL, "EnvKaku7", 142, 205), 197 _PWG_MEDIA_MM("jpn_kaku8_119x197mm", NULL, "EnvKaku8", 119, 197), 198 _PWG_MEDIA_MM("jpn_chou4_90x205mm", NULL, "EnvChou4", 90, 205), 199 _PWG_MEDIA_MM("jpn_hagaki_100x148mm", NULL, "Postcard", 100, 148), 200 _PWG_MEDIA_MM("jpn_you4_105x235mm", NULL, "EnvYou4", 105, 235), 201 _PWG_MEDIA_MM("jpn_you6_98x190mm", NULL, "EnvYou6", 98, 190), 202 _PWG_MEDIA_MM("jpn_chou2_111.1x146mm", NULL, NULL, 111.1, 146), 203 _PWG_MEDIA_MM("jpn_chou3_120x235mm", NULL, "EnvChou3", 120, 235), 204 _PWG_MEDIA_MM("jpn_chou40_90x225mm", NULL, "EnvChou40", 90, 225), 205 _PWG_MEDIA_MM("jpn_oufuku_148x200mm", NULL, "DoublePostcardRotated", 148, 200), 206 _PWG_MEDIA_MM("jpn_kahu_240x322.1mm", NULL, "240x322mm", 240, 322.1), 207 208 /* Chinese Standard Sheet Media Sizes */ 209 _PWG_MEDIA_MM("prc_32k_97x151mm", NULL, "PRC32K", 97, 151), 210 _PWG_MEDIA_MM("prc_1_102x165mm", NULL, "EnvPRC1", 102, 165), 211 _PWG_MEDIA_MM("prc_2_102x176mm", NULL, "EnvPRC2", 102, 176), 212 _PWG_MEDIA_MM("prc_4_110x208mm", NULL, "EnvPRC4", 110, 208), 213 _PWG_MEDIA_MM("prc_8_120x309mm", NULL, "EnvPRC8", 120, 309), 214 _PWG_MEDIA_MM("prc_6_120x320mm", NULL, NULL, 120, 320), 215 _PWG_MEDIA_MM("prc_16k_146x215mm", NULL, "PRC16K", 146, 215), 216 _PWG_MEDIA_MM("prc_7_160x230mm", NULL, "EnvPRC7", 160, 230), 217 _PWG_MEDIA_MM("om_juuro-ku-kai_198x275mm", NULL, "198x275mm", 198, 275), 218 _PWG_MEDIA_MM("om_pa-kai_267x389mm", NULL, "267x389mm", 267, 389), 219 _PWG_MEDIA_MM("om_dai-pa-kai_275x395mm", NULL, "275x395mm", 275, 395), 220 221 /* Chinese Standard Sheet Media Inch Sizes */ 222 _PWG_MEDIA_IN("roc_16k_7.75x10.75in", NULL, "roc16k", 7.75, 10.75), 223 _PWG_MEDIA_IN("roc_8k_10.75x15.5in", NULL, "roc8k", 10.75, 15.5), 224 225 /* Other English Standard Sheet Media Sizes */ 226 _PWG_MEDIA_IN("oe_photo-l_3.5x5in", NULL, "3.5x5", 3.5, 5), 227 228 /* Other Metric Standard Sheet Media Sizes */ 229 _PWG_MEDIA_MM("om_small-photo_100x150mm", NULL, "100x150mm", 100, 150), 230 _PWG_MEDIA_MM("om_italian_110x230mm", NULL, "EnvItalian", 110, 230), 231 _PWG_MEDIA_MM("om_large-photo_200x300", NULL, "200x300mm", 200, 300), 232 _PWG_MEDIA_MM("om_folio_210x330mm", "folio", "Folio", 210, 330), 233 _PWG_MEDIA_MM("om_folio-sp_215x315mm", NULL, "FolioSP", 215, 315), 234 _PWG_MEDIA_MM("om_invite_220x220mm", NULL, "EnvInvite", 220, 220), 235 _PWG_MEDIA_MM("om_small-photo_100x200mm", NULL, "100x200mm", 100, 200), 236 237 /* Disc Sizes */ 238 _PWG_MEDIA_MM("disc_standard_40x118mm", NULL, "Disc", 118, 118) 239 }; 240 241 242 /* 243 * 'pwgFormatSizeName()' - Generate a PWG self-describing media size name. 244 * 245 * This function generates a PWG self-describing media size name of the form 246 * "prefix_name_WIDTHxLENGTHunits". The prefix is typically "custom" or "roll" 247 * for user-supplied sizes but can also be "disc", "iso", "jis", "jpn", "na", 248 * "oe", "om", "prc", or "roc". A value of @code NULL@ automatically chooses 249 * "oe" or "om" depending on the units. 250 * 251 * The size name may only contain lowercase letters, numbers, "-", and ".". If 252 * @code NULL@ is passed, the size name will contain the formatted dimensions. 253 * 254 * The width and length are specified in hundredths of millimeters, equivalent 255 * to 1/100000th of a meter or 1/2540th of an inch. The width, length, and 256 * units used for the generated size name are calculated automatically if the 257 * units string is @code NULL@, otherwise inches ("in") or millimeters ("mm") 258 * are used. 259 * 260 * @since CUPS 1.7/macOS 10.9@ 261 */ 262 263 int /* O - 1 on success, 0 on failure */ 264 pwgFormatSizeName(char *keyword, /* I - Keyword buffer */ 265 size_t keysize, /* I - Size of keyword buffer */ 266 const char *prefix, /* I - Prefix for PWG size or @code NULL@ for automatic */ 267 const char *name, /* I - Size name or @code NULL@ */ 268 int width, /* I - Width of page in 2540ths */ 269 int length, /* I - Length of page in 2540ths */ 270 const char *units) /* I - Units - "in", "mm", or @code NULL@ for automatic */ 271 { 272 char usize[12 + 1 + 12 + 3], /* Unit size: NNNNNNNNNNNNxNNNNNNNNNNNNuu */ 273 *uptr; /* Pointer into unit size */ 274 char *(*format)(char *, size_t, int); 275 /* Formatting function */ 276 277 278 /* 279 * Range check input... 280 */ 281 282 DEBUG_printf(("pwgFormatSize(keyword=%p, keysize=" CUPS_LLFMT ", prefix=\"%s\", name=\"%s\", width=%d, length=%d, units=\"%s\")", (void *)keyword, CUPS_LLCAST keysize, prefix, name, width, length, units)); 283 284 if (keyword) 285 *keyword = '\0'; 286 287 if (!keyword || keysize < 32 || width < 0 || length < 0 || 288 (units && strcmp(units, "in") && strcmp(units, "mm"))) 289 { 290 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Invalid media name arguments."), 291 1); 292 return (0); 293 } 294 295 if (name) 296 { 297 /* 298 * Validate name... 299 */ 300 301 const char *nameptr; /* Pointer into name */ 302 303 for (nameptr = name; *nameptr; nameptr ++) 304 if (!(*nameptr >= 'a' && *nameptr <= 'z') && 305 !(*nameptr >= '0' && *nameptr <= '9') && 306 *nameptr != '.' && *nameptr != '-') 307 { 308 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 309 _("Invalid media name arguments."), 1); 310 return (0); 311 } 312 } 313 else 314 name = usize; 315 316 if (prefix && !strcmp(prefix, "disc")) 317 width = 4000; /* Disc sizes use hardcoded 40mm inner diameter */ 318 319 if (!units) 320 { 321 if ((width % 635) == 0 && (length % 635) == 0) 322 { 323 /* 324 * Use inches since the size is a multiple of 1/4 inch. 325 */ 326 327 units = "in"; 328 } 329 else 330 { 331 /* 332 * Use millimeters since the size is not a multiple of 1/4 inch. 333 */ 334 335 units = "mm"; 336 } 337 } 338 339 if (!strcmp(units, "in")) 340 { 341 format = pwg_format_inches; 342 343 if (!prefix) 344 prefix = "oe"; 345 } 346 else 347 { 348 format = pwg_format_millimeters; 349 350 if (!prefix) 351 prefix = "om"; 352 } 353 354 /* 355 * Format the size string... 356 */ 357 358 uptr = usize; 359 (*format)(uptr, sizeof(usize) - (size_t)(uptr - usize), width); 360 uptr += strlen(uptr); 361 *uptr++ = 'x'; 362 (*format)(uptr, sizeof(usize) - (size_t)(uptr - usize), length); 363 uptr += strlen(uptr); 364 365 /* 366 * Safe because usize can hold up to 12 + 1 + 12 + 4 bytes. 367 */ 368 369 memcpy(uptr, units, 3); 370 371 /* 372 * Format the name... 373 */ 374 375 snprintf(keyword, keysize, "%s_%s_%s", prefix, name, usize); 376 377 return (1); 378 } 379 380 381 /* 382 * 'pwgInitSize()' - Initialize a pwg_size_t structure using IPP Job Template 383 * attributes. 384 * 385 * This function initializes a pwg_size_t structure from an IPP "media" or 386 * "media-col" attribute in the specified IPP message. 0 is returned if neither 387 * attribute is found in the message or the values are not valid. 388 * 389 * The "margins_set" variable is initialized to 1 if any "media-xxx-margin" 390 * member attribute was specified in the "media-col" Job Template attribute, 391 * otherwise it is initialized to 0. 392 * 393 * @since CUPS 1.7/macOS 10.9@ 394 */ 395 396 int /* O - 1 if size was initialized, 0 otherwise */ 397 pwgInitSize(pwg_size_t *size, /* I - Size to initialize */ 398 ipp_t *job, /* I - Job template attributes */ 399 int *margins_set) /* O - 1 if margins were set, 0 otherwise */ 400 { 401 ipp_attribute_t *media, /* media attribute */ 402 *media_bottom_margin, /* media-bottom-margin member attribute */ 403 *media_col, /* media-col attribute */ 404 *media_left_margin, /* media-left-margin member attribute */ 405 *media_right_margin, /* media-right-margin member attribute */ 406 *media_size, /* media-size member attribute */ 407 *media_top_margin, /* media-top-margin member attribute */ 408 *x_dimension, /* x-dimension member attribute */ 409 *y_dimension; /* y-dimension member attribute */ 410 pwg_media_t *pwg; /* PWG media value */ 411 412 413 /* 414 * Range check input... 415 */ 416 417 if (!size || !job || !margins_set) 418 return (0); 419 420 /* 421 * Look for media-col and then media... 422 */ 423 424 memset(size, 0, sizeof(pwg_size_t)); 425 *margins_set = 0; 426 427 if ((media_col = ippFindAttribute(job, "media-col", 428 IPP_TAG_BEGIN_COLLECTION)) != NULL) 429 { 430 /* 431 * Got media-col, look for media-size member attribute... 432 */ 433 434 if ((media_size = ippFindAttribute(media_col->values[0].collection, 435 "media-size", 436 IPP_TAG_BEGIN_COLLECTION)) != NULL) 437 { 438 /* 439 * Got media-size, look for x-dimension and y-dimension member 440 * attributes... 441 */ 442 443 x_dimension = ippFindAttribute(media_size->values[0].collection, 444 "x-dimension", IPP_TAG_INTEGER); 445 y_dimension = ippFindAttribute(media_size->values[0].collection, 446 "y-dimension", IPP_TAG_INTEGER); 447 448 if (x_dimension && y_dimension) 449 { 450 size->width = x_dimension->values[0].integer; 451 size->length = y_dimension->values[0].integer; 452 } 453 else if (!x_dimension) 454 { 455 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 456 _("Missing x-dimension in media-size."), 1); 457 return (0); 458 } 459 else if (!y_dimension) 460 { 461 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, 462 _("Missing y-dimension in media-size."), 1); 463 return (0); 464 } 465 } 466 else 467 { 468 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media-size in media-col."), 469 1); 470 return (0); 471 } 472 473 /* media-*-margin */ 474 media_bottom_margin = ippFindAttribute(media_col->values[0].collection, 475 "media-bottom-margin", 476 IPP_TAG_INTEGER); 477 media_left_margin = ippFindAttribute(media_col->values[0].collection, 478 "media-left-margin", 479 IPP_TAG_INTEGER); 480 media_right_margin = ippFindAttribute(media_col->values[0].collection, 481 "media-right-margin", 482 IPP_TAG_INTEGER); 483 media_top_margin = ippFindAttribute(media_col->values[0].collection, 484 "media-top-margin", 485 IPP_TAG_INTEGER); 486 if (media_bottom_margin && media_left_margin && media_right_margin && 487 media_top_margin) 488 { 489 *margins_set = 1; 490 size->bottom = media_bottom_margin->values[0].integer; 491 size->left = media_left_margin->values[0].integer; 492 size->right = media_right_margin->values[0].integer; 493 size->top = media_top_margin->values[0].integer; 494 } 495 } 496 else 497 { 498 if ((media = ippFindAttribute(job, "media", IPP_TAG_NAME)) == NULL) 499 if ((media = ippFindAttribute(job, "media", IPP_TAG_KEYWORD)) == NULL) 500 if ((media = ippFindAttribute(job, "PageSize", IPP_TAG_NAME)) == NULL) 501 media = ippFindAttribute(job, "PageRegion", IPP_TAG_NAME); 502 503 if (media && media->values[0].string.text) 504 { 505 const char *name = media->values[0].string.text; 506 /* Name string */ 507 508 if ((pwg = pwgMediaForPWG(name)) == NULL) 509 { 510 /* 511 * Not a PWG name, try a legacy name... 512 */ 513 514 if ((pwg = pwgMediaForLegacy(name)) == NULL) 515 { 516 /* 517 * Not a legacy name, try a PPD name... 518 */ 519 520 const char *suffix; /* Suffix on media string */ 521 522 pwg = pwgMediaForPPD(name); 523 if (pwg && 524 (suffix = name + strlen(name) - 10 /* .FullBleed */) > name && 525 !_cups_strcasecmp(suffix, ".FullBleed")) 526 { 527 /* 528 * Indicate that margins are set with the default values of 0. 529 */ 530 531 *margins_set = 1; 532 } 533 } 534 } 535 536 if (pwg) 537 { 538 size->width = pwg->width; 539 size->length = pwg->length; 540 } 541 else 542 { 543 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unsupported media value."), 1); 544 return (0); 545 } 546 } 547 else 548 { 549 _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Missing media or media-col."), 1); 550 return (0); 551 } 552 } 553 554 return (1); 555 } 556 557 558 /* 559 * 'pwgMediaForLegacy()' - Find a PWG media size by ISO/IPP legacy name. 560 * 561 * The "name" argument specifies the legacy ISO media size name, for example 562 * "iso-a4" or "na-letter". 563 * 564 * @since CUPS 1.7/macOS 10.9@ 565 */ 566 567 pwg_media_t * /* O - Matching size or NULL */ 568 pwgMediaForLegacy(const char *legacy) /* I - Legacy size name */ 569 { 570 pwg_media_t key; /* Search key */ 571 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 572 573 574 /* 575 * Range check input... 576 */ 577 578 if (!legacy) 579 return (NULL); 580 581 /* 582 * Build the lookup table for PWG names as needed... 583 */ 584 585 if (!cg->leg_size_lut) 586 { 587 int i; /* Looping var */ 588 pwg_media_t *size; /* Current size */ 589 590 cg->leg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_legacy, 591 NULL); 592 593 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 594 size = (pwg_media_t *)cups_pwg_media; 595 i > 0; 596 i --, size ++) 597 if (size->legacy) 598 cupsArrayAdd(cg->leg_size_lut, size); 599 } 600 601 /* 602 * Lookup the name... 603 */ 604 605 key.legacy = legacy; 606 return ((pwg_media_t *)cupsArrayFind(cg->leg_size_lut, &key)); 607 } 608 609 610 /* 611 * 'pwgMediaForPPD()' - Find a PWG media size by Adobe PPD name. 612 * 613 * The "ppd" argument specifies an Adobe page size name as defined in Table B.1 614 * of the Adobe PostScript Printer Description File Format Specification Version 615 * 4.3. 616 * 617 * If the name is non-standard, the returned PWG media size is stored in 618 * thread-local storage and is overwritten by each call to the function in the 619 * thread. Custom names can be of the form "Custom.WIDTHxLENGTH[units]" or 620 * "WIDTHxLENGTH[units]". 621 * 622 * @since CUPS 1.7/macOS 10.9@ 623 */ 624 625 pwg_media_t * /* O - Matching size or NULL */ 626 pwgMediaForPPD(const char *ppd) /* I - PPD size name */ 627 { 628 pwg_media_t key, /* Search key */ 629 *size; /* Matching size */ 630 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 631 632 633 /* 634 * Range check input... 635 */ 636 637 if (!ppd) 638 return (NULL); 639 640 /* 641 * Build the lookup table for PWG names as needed... 642 */ 643 644 if (!cg->ppd_size_lut) 645 { 646 int i; /* Looping var */ 647 648 cg->ppd_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_ppd, NULL); 649 650 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 651 size = (pwg_media_t *)cups_pwg_media; 652 i > 0; 653 i --, size ++) 654 if (size->ppd) 655 cupsArrayAdd(cg->ppd_size_lut, size); 656 } 657 658 /* 659 * Lookup the name... 660 */ 661 662 key.ppd = ppd; 663 if ((size = (pwg_media_t *)cupsArrayFind(cg->ppd_size_lut, &key)) == NULL) 664 { 665 /* 666 * See if the name is of the form: 667 * 668 * [Custom.]WIDTHxLENGTH[.FullBleed] - Size in points/inches [borderless] 669 * [Custom.]WIDTHxLENGTHcm[.FullBleed] - Size in centimeters [borderless] 670 * [Custom.]WIDTHxLENGTHft[.FullBleed] - Size in feet [borderless] 671 * [Custom.]WIDTHxLENGTHin[.FullBleed] - Size in inches [borderless] 672 * [Custom.]WIDTHxLENGTHm[.FullBleed] - Size in meters [borderless] 673 * [Custom.]WIDTHxLENGTHmm[.FullBleed] - Size in millimeters [borderless] 674 * [Custom.]WIDTHxLENGTHpt[.FullBleed] - Size in points [borderless] 675 */ 676 677 int w, l, /* Width and length of page */ 678 numer, /* Unit scaling factor */ 679 denom; /* ... */ 680 char *ptr; /* Pointer into name */ 681 const char *units; /* Pointer to units */ 682 int custom; /* Custom page size? */ 683 684 685 if (!_cups_strncasecmp(ppd, "Custom.", 7)) 686 { 687 custom = 1; 688 numer = 2540; 689 denom = 72; 690 ptr = (char *)ppd + 7; 691 } 692 else 693 { 694 custom = 0; 695 numer = 2540; 696 denom = 1; 697 ptr = (char *)ppd; 698 } 699 700 /* 701 * Find any units in the size... 702 */ 703 704 units = strchr(ptr, '.'); 705 while (units && isdigit(units[1] & 255)) 706 units = strchr(units + 1, '.'); 707 708 if (units) 709 units -= 2; 710 else 711 units = ptr + strlen(ptr) - 2; 712 713 if (units > ptr) 714 { 715 if (isdigit(*units & 255) || *units == '.') 716 units ++; 717 718 if (!_cups_strncasecmp(units, "cm", 2)) 719 { 720 numer = 1000; 721 denom = 1; 722 } 723 else if (!_cups_strncasecmp(units, "ft", 2)) 724 { 725 numer = 2540 * 12; 726 denom = 1; 727 } 728 else if (!_cups_strncasecmp(units, "in", 2)) 729 { 730 numer = 2540; 731 denom = 1; 732 } 733 else if (!_cups_strncasecmp(units, "mm", 2)) 734 { 735 numer = 100; 736 denom = 1; 737 } 738 else if (*units == 'm' || *units == 'M') 739 { 740 numer = 100000; 741 denom = 1; 742 } 743 else if (!_cups_strncasecmp(units, "pt", 2)) 744 { 745 numer = 2540; 746 denom = 72; 747 } 748 } 749 750 w = pwg_scan_measurement(ptr, &ptr, numer, denom); 751 752 if (ptr && ptr > ppd && *ptr == 'x') 753 { 754 l = pwg_scan_measurement(ptr + 1, &ptr, numer, denom); 755 756 if (ptr) 757 { 758 /* 759 * Not a standard size; convert it to a PWG custom name of the form: 760 * 761 * [oe|om]_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu 762 */ 763 764 char wstr[32], lstr[32]; /* Width and length as strings */ 765 766 size = &(cg->pwg_media); 767 size->width = w; 768 size->length = l; 769 size->pwg = cg->pwg_name; 770 771 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name), 772 custom ? "custom" : NULL, custom ? ppd + 7 : NULL, 773 size->width, size->length, NULL); 774 775 if ((w % 635) == 0 && (l % 635) == 0) 776 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), w), pwg_format_inches(lstr, sizeof(lstr), l)); 777 else 778 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), w), pwg_format_millimeters(lstr, sizeof(lstr), l)); 779 size->ppd = cg->ppd_name; 780 } 781 } 782 } 783 784 return (size); 785 } 786 787 788 /* 789 * 'pwgMediaForPWG()' - Find a PWG media size by 5101.1 self-describing name. 790 * 791 * The "pwg" argument specifies a self-describing media size name of the form 792 * "prefix_name_WIDTHxLENGTHunits" as defined in PWG 5101.1. 793 * 794 * If the name is non-standard, the returned PWG media size is stored in 795 * thread-local storage and is overwritten by each call to the function in the 796 * thread. 797 * 798 * @since CUPS 1.7/macOS 10.9@ 799 */ 800 801 pwg_media_t * /* O - Matching size or NULL */ 802 pwgMediaForPWG(const char *pwg) /* I - PWG size name */ 803 { 804 char *ptr; /* Pointer into name */ 805 pwg_media_t key, /* Search key */ 806 *size; /* Matching size */ 807 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 808 809 810 /* 811 * Range check input... 812 */ 813 814 if (!pwg) 815 return (NULL); 816 817 /* 818 * Build the lookup table for PWG names as needed... 819 */ 820 821 if (!cg->pwg_size_lut) 822 { 823 int i; /* Looping var */ 824 825 cg->pwg_size_lut = cupsArrayNew((cups_array_func_t)pwg_compare_pwg, NULL); 826 827 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 828 size = (pwg_media_t *)cups_pwg_media; 829 i > 0; 830 i --, size ++) 831 cupsArrayAdd(cg->pwg_size_lut, size); 832 } 833 834 /* 835 * Lookup the name... 836 */ 837 838 key.pwg = pwg; 839 if ((size = (pwg_media_t *)cupsArrayFind(cg->pwg_size_lut, &key)) == NULL && 840 (ptr = (char *)strchr(pwg, '_')) != NULL && 841 (ptr = (char *)strchr(ptr + 1, '_')) != NULL) 842 { 843 /* 844 * Try decoding the self-describing name of the form: 845 * 846 * class_name_WWWxHHHin 847 * class_name_WWWxHHHmm 848 */ 849 850 int w, l; /* Width and length of page */ 851 int numer; /* Scale factor for units */ 852 const char *units = ptr + strlen(ptr) - 2; 853 /* Units from size */ 854 855 ptr ++; 856 857 if (units >= ptr && !strcmp(units, "in")) 858 numer = 2540; 859 else 860 numer = 100; 861 862 w = pwg_scan_measurement(ptr, &ptr, numer, 1); 863 864 if (ptr && *ptr == 'x') 865 { 866 l = pwg_scan_measurement(ptr + 1, &ptr, numer, 1); 867 868 if (ptr) 869 { 870 char wstr[32], lstr[32]; /* Width and length strings */ 871 872 if (!strncmp(pwg, "disc_", 5)) 873 w = l; /* Make the media size OUTERxOUTER */ 874 875 size = &(cg->pwg_media); 876 size->width = w; 877 size->length = l; 878 879 strlcpy(cg->pwg_name, pwg, sizeof(cg->pwg_name)); 880 size->pwg = cg->pwg_name; 881 882 if (numer == 100) 883 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), w), pwg_format_millimeters(lstr, sizeof(lstr), l)); 884 else 885 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), w), pwg_format_inches(lstr, sizeof(lstr), l)); 886 size->ppd = cg->ppd_name; 887 } 888 } 889 } 890 891 return (size); 892 } 893 894 895 /* 896 * 'pwgMediaForSize()' - Get the PWG media size for the given dimensions. 897 * 898 * The "width" and "length" are in hundredths of millimeters, equivalent to 899 * 1/100000th of a meter or 1/2540th of an inch. 900 * 901 * If the dimensions are non-standard, the returned PWG media size is stored in 902 * thread-local storage and is overwritten by each call to the function in the 903 * thread. 904 * 905 * @since CUPS 1.7/macOS 10.9@ 906 */ 907 908 pwg_media_t * /* O - PWG media name */ 909 pwgMediaForSize(int width, /* I - Width in hundredths of millimeters */ 910 int length) /* I - Length in hundredths of millimeters */ 911 { 912 /* 913 * Adobe uses a size matching algorithm with an epsilon of 5 points, which 914 * is just about 176/2540ths... 915 */ 916 917 return (_pwgMediaNearSize(width, length, 176)); 918 } 919 920 921 /* 922 * '_pwgMediaNearSize()' - Get the PWG media size within the given tolerance. 923 */ 924 925 pwg_media_t * /* O - PWG media name */ 926 _pwgMediaNearSize(int width, /* I - Width in hundredths of millimeters */ 927 int length, /* I - Length in hundredths of millimeters */ 928 int epsilon) /* I - Match within this tolernace. PWG units */ 929 { 930 int i; /* Looping var */ 931 pwg_media_t *media, /* Current media */ 932 *best_media = NULL; /* Best match */ 933 int dw, dl, /* Difference in width and length */ 934 best_dw = 999, /* Best difference in width and length */ 935 best_dl = 999; 936 char wstr[32], lstr[32]; /* Width and length as strings */ 937 _cups_globals_t *cg = _cupsGlobals(); /* Global data */ 938 939 940 /* 941 * Range check input... 942 */ 943 944 if (width <= 0 || length <= 0) 945 return (NULL); 946 947 /* 948 * Look for a standard size... 949 */ 950 951 for (i = (int)(sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0])), 952 media = (pwg_media_t *)cups_pwg_media; 953 i > 0; 954 i --, media ++) 955 { 956 957 dw = abs(media->width - width); 958 dl = abs(media->length - length); 959 960 if (!dw && !dl) 961 return (media); 962 else if (dw <= epsilon && dl <= epsilon) 963 { 964 if (dw <= best_dw && dl <= best_dl) 965 { 966 best_media = media; 967 best_dw = dw; 968 best_dl = dl; 969 } 970 } 971 } 972 973 if (best_media) 974 return (best_media); 975 976 /* 977 * Not a standard size; convert it to a PWG custom name of the form: 978 * 979 * custom_WIDTHxHEIGHTuu_WIDTHxHEIGHTuu 980 */ 981 982 pwgFormatSizeName(cg->pwg_name, sizeof(cg->pwg_name), "custom", NULL, width, 983 length, NULL); 984 985 cg->pwg_media.pwg = cg->pwg_name; 986 cg->pwg_media.width = width; 987 cg->pwg_media.length = length; 988 989 if ((width % 635) == 0 && (length % 635) == 0) 990 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%s", pwg_format_inches(wstr, sizeof(wstr), width), pwg_format_inches(lstr, sizeof(lstr), length)); 991 else 992 snprintf(cg->ppd_name, sizeof(cg->ppd_name), "%sx%smm", pwg_format_millimeters(wstr, sizeof(wstr), width), pwg_format_millimeters(lstr, sizeof(lstr), length)); 993 cg->pwg_media.ppd = cg->ppd_name; 994 995 return (&(cg->pwg_media)); 996 } 997 998 999 /* 1000 * '_pwgMediaTable()' - Return the internal media size table. 1001 */ 1002 1003 const pwg_media_t * /* O - Pointer to first entry */ 1004 _pwgMediaTable(size_t *num_media) /* O - Number of entries */ 1005 { 1006 *num_media = sizeof(cups_pwg_media) / sizeof(cups_pwg_media[0]); 1007 1008 return (cups_pwg_media); 1009 } 1010 1011 1012 /* 1013 * 'pwg_compare_legacy()' - Compare two sizes using the legacy names. 1014 */ 1015 1016 static int /* O - Result of comparison */ 1017 pwg_compare_legacy(pwg_media_t *a, /* I - First size */ 1018 pwg_media_t *b) /* I - Second size */ 1019 { 1020 return (strcmp(a->legacy, b->legacy)); 1021 } 1022 1023 1024 /* 1025 * 'pwg_compare_ppd()' - Compare two sizes using the PPD names. 1026 */ 1027 1028 static int /* O - Result of comparison */ 1029 pwg_compare_ppd(pwg_media_t *a, /* I - First size */ 1030 pwg_media_t *b) /* I - Second size */ 1031 { 1032 return (strcmp(a->ppd, b->ppd)); 1033 } 1034 1035 1036 /* 1037 * 'pwg_compare_pwg()' - Compare two sizes using the PWG names. 1038 */ 1039 1040 static int /* O - Result of comparison */ 1041 pwg_compare_pwg(pwg_media_t *a, /* I - First size */ 1042 pwg_media_t *b) /* I - Second size */ 1043 { 1044 return (strcmp(a->pwg, b->pwg)); 1045 } 1046 1047 1048 /* 1049 * 'pwg_format_inches()' - Convert and format PWG units as inches. 1050 */ 1051 1052 static char * /* O - String */ 1053 pwg_format_inches(char *buf, /* I - Buffer */ 1054 size_t bufsize, /* I - Size of buffer */ 1055 int val) /* I - Value in hundredths of millimeters */ 1056 { 1057 int thousandths, /* Thousandths of inches */ 1058 integer, /* Integer portion */ 1059 fraction; /* Fractional portion */ 1060 1061 1062 /* 1063 * Convert hundredths of millimeters to thousandths of inches and round to 1064 * the nearest thousandth. 1065 */ 1066 1067 thousandths = (val * 1000 + 1270) / 2540; 1068 integer = thousandths / 1000; 1069 fraction = thousandths % 1000; 1070 1071 /* 1072 * Format as a pair of integers (avoids locale stuff), avoiding trailing 1073 * zeros... 1074 */ 1075 1076 if (fraction == 0) 1077 snprintf(buf, bufsize, "%d", integer); 1078 else if (fraction % 10) 1079 snprintf(buf, bufsize, "%d.%03d", integer, fraction); 1080 else if (fraction % 100) 1081 snprintf(buf, bufsize, "%d.%02d", integer, fraction / 10); 1082 else 1083 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 100); 1084 1085 return (buf); 1086 } 1087 1088 1089 /* 1090 * 'pwg_format_millimeters()' - Convert and format PWG units as millimeters. 1091 */ 1092 1093 static char * /* O - String */ 1094 pwg_format_millimeters(char *buf, /* I - Buffer */ 1095 size_t bufsize, /* I - Size of buffer */ 1096 int val) /* I - Value in hundredths of millimeters */ 1097 { 1098 int integer, /* Integer portion */ 1099 fraction; /* Fractional portion */ 1100 1101 1102 /* 1103 * Convert hundredths of millimeters to integer and fractional portions. 1104 */ 1105 1106 integer = val / 100; 1107 fraction = val % 100; 1108 1109 /* 1110 * Format as a pair of integers (avoids locale stuff), avoiding trailing 1111 * zeros... 1112 */ 1113 1114 if (fraction == 0) 1115 snprintf(buf, bufsize, "%d", integer); 1116 else if (fraction % 10) 1117 snprintf(buf, bufsize, "%d.%02d", integer, fraction); 1118 else 1119 snprintf(buf, bufsize, "%d.%01d", integer, fraction / 10); 1120 1121 return (buf); 1122 } 1123 1124 1125 /* 1126 * 'pwg_scan_measurement()' - Scan a measurement in inches or millimeters. 1127 * 1128 * The "factor" argument specifies the scale factor for the units to convert to 1129 * hundredths of millimeters. The returned value is NOT rounded but is an 1130 * exact conversion of the fraction value (no floating point is used). 1131 */ 1132 1133 static int /* O - Hundredths of millimeters */ 1134 pwg_scan_measurement( 1135 const char *buf, /* I - Number string */ 1136 char **bufptr, /* O - First byte after the number */ 1137 int numer, /* I - Numerator from units */ 1138 int denom) /* I - Denominator from units */ 1139 { 1140 int value = 0, /* Measurement value */ 1141 fractional = 0, /* Fractional value */ 1142 divisor = 1, /* Fractional divisor */ 1143 digits = 10 * numer * denom; /* Maximum fractional value to read */ 1144 1145 1146 /* 1147 * Scan integer portion... 1148 */ 1149 1150 while (*buf >= '0' && *buf <= '9') 1151 value = value * 10 + (*buf++) - '0'; 1152 1153 if (*buf == '.') 1154 { 1155 /* 1156 * Scan fractional portion... 1157 */ 1158 1159 buf ++; 1160 1161 while (divisor < digits && *buf >= '0' && *buf <= '9') 1162 { 1163 fractional = fractional * 10 + (*buf++) - '0'; 1164 divisor *= 10; 1165 } 1166 1167 /* 1168 * Skip trailing digits that won't contribute... 1169 */ 1170 1171 while (*buf >= '0' && *buf <= '9') 1172 buf ++; 1173 } 1174 1175 if (bufptr) 1176 *bufptr = (char *)buf; 1177 1178 return (value * numer / denom + fractional * numer / denom / divisor); 1179 } 1180
