| File: | xpr.c |
| Location: | line 1929, column 6 |
| Description: | Value stored to 'ffcount' is never read |
| 1 | /* $XConsortium: xpr.c,v 1.59 94/10/14 21:22:08 kaleb Exp $ */ |
| 2 | /* |
| 3 | |
| 4 | Copyright (c) 1985 X Consortium |
| 5 | |
| 6 | Permission is hereby granted, free of charge, to any person obtaining |
| 7 | a copy of this software and associated documentation files (the |
| 8 | "Software"), to deal in the Software without restriction, including |
| 9 | without limitation the rights to use, copy, modify, merge, publish, |
| 10 | distribute, sublicense, and/or sell copies of the Software, and to |
| 11 | permit persons to whom the Software is furnished to do so, subject to |
| 12 | the following conditions: |
| 13 | |
| 14 | The above copyright notice and this permission notice shall be included |
| 15 | in all copies or substantial portions of the Software. |
| 16 | |
| 17 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 18 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 20 | IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 21 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 22 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 23 | OTHER DEALINGS IN THE SOFTWARE. |
| 24 | |
| 25 | Except as contained in this notice, the name of the X Consortium shall |
| 26 | not be used in advertising or otherwise to promote the sale, use or |
| 27 | other dealings in this Software without prior written authorization |
| 28 | from the X Consortium. |
| 29 | |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * XPR - process xwd(1) files for various printers |
| 34 | * |
| 35 | * Author: Michael R. Gretzinger, MIT Project Athena |
| 36 | * |
| 37 | * Modified by Marvin Solomon, Univeristy of Wisconsin, to handle Apple |
| 38 | * Laserwriter (PostScript) devices (-device ps). |
| 39 | * Also accepts the -compact flag that produces more compact output |
| 40 | * by using run-length encoding on white (1) pixels. |
| 41 | * This version does not (yet) support the following options |
| 42 | * -append -dump -noff -nosixopt -split |
| 43 | * |
| 44 | * Changes |
| 45 | * Copyright 1986 by Marvin Solomon and the University of Wisconsin |
| 46 | * |
| 47 | * Permission to use, copy, modify, and distribute this |
| 48 | * software and its documentation for any purpose and without |
| 49 | * fee is hereby granted, provided that the above copyright |
| 50 | * notice appear in all copies and that both that copyright |
| 51 | * notice and this permission notice appear in supporting |
| 52 | * documentation, and that the names of Marvin Solomon and |
| 53 | * the University of Wisconsin not be used in |
| 54 | * advertising or publicity pertaining to distribution of the |
| 55 | * software without specific, written prior permission. |
| 56 | * Neither Marvin Solomon nor the University of Wisconsin |
| 57 | * makes any representations about the suitability of |
| 58 | * this software for any purpose. It is provided "as is" |
| 59 | * without express or implied warranty. |
| 60 | * |
| 61 | * Modified by Bob Scheifler for 2x2 grayscale, then ... |
| 62 | * Modified by Angela Bock and E. Mike Durbin, Rich Inc., to produce output |
| 63 | * using 2x2, 3x3, or 4x4 grayscales. This version modifies the grayscale |
| 64 | * conversion option of -gray to accept an input of 2, 3, or 4 to signify |
| 65 | * the gray level desired. The output is produced, using 5, 10, or 17-level |
| 66 | * gray scales, respectively. |
| 67 | * |
| 68 | * Modifications by Larry Rupp, Hewlett-Packard Company, to support HP |
| 69 | * LaserJet, PaintJet, and other PCL printers. Added "ljet" and "pjet" |
| 70 | * to devices recognized. Also added -density, -cutoff, and -noposition |
| 71 | * command line options. |
| 72 | * |
| 73 | */ |
| 74 | |
| 75 | #include <X11/Xos.h> |
| 76 | #include <X11/Xfuncs.h> |
| 77 | #include <X11/Xlib.h> |
| 78 | #include <X11/Xutil.h> |
| 79 | #include <stdio.h> |
| 80 | #include <string.h> |
| 81 | #ifndef WIN32 |
| 82 | #include <pwd.h> |
| 83 | #endif |
| 84 | #include "lncmd.h" |
| 85 | #include "xpr.h" |
| 86 | #include <X11/XWDFile.h> |
| 87 | #include <X11/Xmu/SysUtil.h> |
| 88 | #ifndef O_BINARY0 |
| 89 | #define O_BINARY0 0 |
| 90 | #endif |
| 91 | |
| 92 | #ifdef NLS16 |
| 93 | #ifndef NLS |
| 94 | #define NLS |
| 95 | #endif |
| 96 | #endif |
| 97 | |
| 98 | #ifndef NLS |
| 99 | #define catgets(i, sn,mn,s)(s) (s) |
| 100 | #else /* NLS */ |
| 101 | #define NL_SETN 1 /* set number */ |
| 102 | #include <nl_types.h> |
| 103 | |
| 104 | nl_catd nlmsg_fd; |
| 105 | #endif /* NLS */ |
| 106 | |
| 107 | int debug = 0; |
| 108 | |
| 109 | #define W_MAX2400 2400 |
| 110 | #define H_MAX3150 3150 |
| 111 | #define W_MARGIN75 75 |
| 112 | #define H_MARGIN37 37 |
| 113 | #define W_PAGE2550 2550 |
| 114 | #define H_PAGE3225 3225 |
| 115 | |
| 116 | #ifdef NOINLINE1 |
| 117 | #define min(x,y)(((x)<(y))?(x):(y)) (((x)<(y))?(x):(y)) |
| 118 | #endif /* NOINLINE */ |
| 119 | |
| 120 | #define F_PORTRAIT1 1 |
| 121 | #define F_LANDSCAPE2 2 |
| 122 | #define F_DUMP4 4 |
| 123 | #define F_NOSIXOPT8 8 |
| 124 | #define F_APPEND16 16 |
| 125 | #define F_NOFF32 32 |
| 126 | #define F_REPORT64 64 |
| 127 | #define F_COMPACT128 128 |
| 128 | #define F_INVERT256 256 |
| 129 | #define F_GRAY512 512 |
| 130 | #define F_NPOSITION1024 1024 |
| 131 | #define F_SLIDE2048 2048 |
| 132 | |
| 133 | #define DEFAULT_CUTOFF((unsigned int) (0xFFFF * 0.50)) ((unsigned int) (0xFFFF * 0.50)) |
| 134 | |
| 135 | static const char *infilename = NULL((void*)0); |
| 136 | const char *progname = NULL((void*)0); |
| 137 | |
| 138 | typedef struct _grayRec { |
| 139 | int level; |
| 140 | int sizeX, sizeY; /* 2x2, 3x3, 4x4 */ |
| 141 | unsigned long *grayscales; /* pointer to the encoded pixels */ |
| 142 | } GrayRec, *GrayPtr; |
| 143 | |
| 144 | static unsigned long grayscale2x2[] = |
| 145 | {0, 1, 9, 11, 15}; |
| 146 | static unsigned long grayscale3x3[] = |
| 147 | {0, 16, 68, 81, 325, 341, 349, 381, 383, 511}; |
| 148 | static unsigned long grayscale4x4[] = |
| 149 | {0, 64, 4160, 4161, 20545, 21057, 23105, |
| 150 | 23113, 23145, 24169, 24171, 56939, 55275, 55279, |
| 151 | 57327, 65519, 65535}; |
| 152 | |
| 153 | static GrayRec gray2x2 = {sizeof(grayscale2x2)/sizeof(long), 2, 2, grayscale2x2}; |
| 154 | static GrayRec gray3x3 = {sizeof(grayscale3x3)/sizeof(long), 3, 3, grayscale3x3}; |
| 155 | static GrayRec gray4x4 = {sizeof(grayscale4x4)/sizeof(long), 4, 4, grayscale4x4}; |
| 156 | |
| 157 | /* mapping tables to map a byte in to the hex representation of its |
| 158 | * bit-reversal |
| 159 | */ |
| 160 | static const |
| 161 | char hex1[]="084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f\ |
| 162 | 084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f\ |
| 163 | 084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f\ |
| 164 | 084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f084c2a6e195d3b7f"; |
| 165 | |
| 166 | static const |
| 167 | char hex2[]="000000000000000088888888888888884444444444444444cccccccccccccccc\ |
| 168 | 2222222222222222aaaaaaaaaaaaaaaa6666666666666666eeeeeeeeeeeeeeee\ |
| 169 | 111111111111111199999999999999995555555555555555dddddddddddddddd\ |
| 170 | 3333333333333333bbbbbbbbbbbbbbbb7777777777777777ffffffffffffffff"; |
| 171 | |
| 172 | |
| 173 | /* Local prototypes */ |
| 174 | static void usage(void) _X_NORETURN__attribute((noreturn)); |
| 175 | static |
| 176 | void parse_args( |
| 177 | int argc, |
| 178 | char **argv, |
| 179 | int *scale, |
| 180 | int *width, |
| 181 | int *height, |
| 182 | int *left, |
| 183 | int *top, |
| 184 | enum device *device, |
| 185 | int *flags, |
| 186 | int *split, |
| 187 | char **header, |
| 188 | char **trailer, |
| 189 | int *plane, |
| 190 | GrayPtr *gray, |
| 191 | int *density, |
| 192 | unsigned int *cutoff, |
| 193 | float *gamma, |
| 194 | int *render); |
| 195 | static |
| 196 | void setup_layout( |
| 197 | enum device device, |
| 198 | int win_width, |
| 199 | int win_height, |
| 200 | int flags, |
| 201 | int width, |
| 202 | int height, |
| 203 | char *header, |
| 204 | char *trailer, |
| 205 | int *scale, |
| 206 | enum orientation *orientation); |
| 207 | static |
| 208 | char *convert_data( |
| 209 | XWDFileHeader *win, |
| 210 | char *data, |
| 211 | int plane, |
| 212 | GrayPtr gray, |
| 213 | XColor *colors, |
| 214 | int flags); |
| 215 | static |
| 216 | void dump_sixmap( |
| 217 | register unsigned char (*sixmap)[], |
| 218 | int iw, |
| 219 | int ih); |
| 220 | static |
| 221 | void build_sixmap( |
| 222 | int ih, |
| 223 | int iw, |
| 224 | unsigned char (*sixmap)[], |
| 225 | int hpad, |
| 226 | XWDFileHeader *win, |
| 227 | const char *data); |
| 228 | static |
| 229 | void ln03_setup( |
| 230 | int iw, |
| 231 | int ih, |
| 232 | enum orientation orientation, |
| 233 | int scale, |
| 234 | int left, |
| 235 | int top, |
| 236 | int *left_margin, |
| 237 | int *top_margin, |
| 238 | int flags, |
| 239 | const char *header, |
| 240 | const char *trailer); |
| 241 | static void ln03_finish(void); |
| 242 | static void la100_setup(int iw, int ih, int scale); |
| 243 | static void la100_finish(void); |
| 244 | static void dump_prolog(int flags); |
| 245 | static int points(int n); |
| 246 | static char *escape(const char *s); |
| 247 | static |
| 248 | void ps_setup( |
| 249 | int iw, |
| 250 | int ih, |
| 251 | enum orientation orientation, |
| 252 | int scale, |
| 253 | int left, |
| 254 | int top, |
| 255 | int flags, |
| 256 | const char *header, |
| 257 | const char *trailer, |
| 258 | const char *name); |
| 259 | static void ps_finish(void); |
| 260 | static |
| 261 | void ln03_output_sixels( |
| 262 | unsigned char (*sixmap)[], |
| 263 | int iw, |
| 264 | int ih, |
| 265 | int nosixopt, |
| 266 | int split, |
| 267 | int scale, |
| 268 | int top_margin, |
| 269 | int left_margin); |
| 270 | static void la100_output_sixels( |
| 271 | unsigned char (*sixmap)[], |
| 272 | int iw, |
| 273 | int ih, |
| 274 | int nosixopt); |
| 275 | static void ps_output_bits( |
| 276 | int iw, |
| 277 | int ih, |
| 278 | int flags, |
| 279 | enum orientation orientation, |
| 280 | XWDFileHeader *win, |
| 281 | const char *data); |
| 282 | static int ps_putbuf( |
| 283 | register unsigned char *s, |
| 284 | register int n, |
| 285 | register int ocount, |
| 286 | int compact); |
| 287 | static void ps_bitrot( |
| 288 | unsigned char *s, |
| 289 | register int n, |
| 290 | int col, |
| 291 | register int owidth, |
| 292 | char *obuf); |
| 293 | static void fullread ( |
| 294 | int file, |
| 295 | char *data, |
| 296 | int nbytes); |
| 297 | |
| 298 | int main(int argc, char **argv) |
| 299 | { |
| 300 | unsigned long swaptest = 1; |
| 301 | XWDFileHeader win; |
| 302 | register unsigned char (*sixmap)[]; |
| 303 | register int i; |
| 304 | register int iw; |
| 305 | register int ih; |
| 306 | register int sixel_count; |
| 307 | char *w_name; |
| 308 | int scale, width, height, flags, split; |
| 309 | int left, top; |
| 310 | int top_margin, left_margin; |
| 311 | int hpad; |
| 312 | char *header, *trailer; |
| 313 | int plane; |
| 314 | int density, render; |
| 315 | unsigned int cutoff; |
| 316 | float gamma; |
| 317 | GrayPtr gray; |
| 318 | char *data; |
| 319 | long size; |
| 320 | enum orientation orientation; |
| 321 | enum device device; |
| 322 | XColor *colors = (XColor *)NULL((void*)0); |
| 323 | |
| 324 | if (!(progname = argv[0])) |
| 325 | progname = "xpr"; |
| 326 | #ifdef NLS |
| 327 | nlmsg_fd = catopen("xpr", 0); |
| 328 | #endif |
| 329 | parse_args (argc, argv, &scale, &width, &height, &left, &top, &device, |
| 330 | &flags, &split, &header, &trailer, &plane, &gray, |
| 331 | &density, &cutoff, &gamma, &render); |
| 332 | |
| 333 | if (device == PP) { |
| 334 | x2pmp(stdinstdin, stdoutstdout, scale, |
| 335 | width >= 0? inch2pel((float)width/300.0)((int) (((float)width/300.0) * 240)): X_MAX_PELS((int) ((8.5) * 240)), |
| 336 | height >= 0? inch2pel((float)height/300.0)((int) (((float)height/300.0) * 240)): Y_MAX_PELS((int) ((11) * 240)), |
| 337 | left >= 0? inch2pel((float)left/300.0)((int) (((float)left/300.0) * 240)): inch2pel(0.60)((int) ((0.60) * 240)), |
| 338 | top >= 0? inch2pel((float)top/300.0)((int) (((float)top/300.0) * 240)): inch2pel(0.70)((int) ((0.70) * 240)), |
| 339 | header, trailer, |
| 340 | (flags & F_PORTRAIT1)? PORTRAIT: |
| 341 | ((flags & F_LANDSCAPE2)? LANDSCAPE: UNSPECIFIED), |
| 342 | (flags & F_INVERT256)); |
| 343 | exit(0); |
| 344 | } else if ((device == LJET) || (device == PJET) || (device == PJETXL)) { |
| 345 | x2jet(stdinstdin, stdoutstdout, scale, density, width, height, left, top, |
| 346 | header, trailer, |
| 347 | (flags & F_PORTRAIT1)? PORTRAIT: |
| 348 | ((flags & F_LANDSCAPE2)? LANDSCAPE: UNSPECIFIED), |
| 349 | (flags & F_INVERT256), |
| 350 | ((flags & F_APPEND16) && !(flags & F_NOFF32)), |
| 351 | !(flags & F_NPOSITION1024), |
| 352 | (flags & F_SLIDE2048), |
| 353 | device, cutoff, gamma, render); |
| 354 | exit(0); |
| 355 | } |
| 356 | |
| 357 | /* read in window header */ |
| 358 | fullread(0, (char *)&win, sizeof win); |
| 359 | if (*(char *) &swaptest) |
| 360 | _swaplong((char *) &win, (long)sizeof(win)); |
| 361 | |
| 362 | if (win.file_version != XWD_FILE_VERSION7) { |
| 363 | fprintf(stderrstderr,"xpr: file format version missmatch.\n"); |
| 364 | exit(1); |
| 365 | } |
| 366 | if (win.header_size < sizeof(win)) { |
| 367 | fprintf(stderrstderr,"xpr: header size is too small.\n"); |
| 368 | exit(1); |
| 369 | } |
| 370 | |
| 371 | w_name = malloc((unsigned)(win.header_size - sizeof win)); |
| 372 | fullread(0, w_name, (int) (win.header_size - sizeof win)); |
| 373 | |
| 374 | if(win.ncolors) { |
| 375 | XWDColor xwdcolor; |
| 376 | colors = (XColor *)malloc((unsigned) (win.ncolors * sizeof(XColor))); |
| 377 | for (i = 0; i < win.ncolors; i++) { |
| 378 | fullread(0, (char*)&xwdcolor, (int) sizeof xwdcolor); |
| 379 | colors[i].pixel = xwdcolor.pixel; |
| 380 | colors[i].red = xwdcolor.red; |
| 381 | colors[i].green = xwdcolor.green; |
| 382 | colors[i].blue = xwdcolor.blue; |
| 383 | colors[i].flags = xwdcolor.flags; |
| 384 | } |
| 385 | if (*(char *) &swaptest) { |
| 386 | for (i = 0; i < win.ncolors; i++) { |
| 387 | _swaplong((char *) &colors[i].pixel, (long)sizeof(long)); |
| 388 | _swapshort((char *) &colors[i].red, (long) (3 * sizeof(short))); |
| 389 | } |
| 390 | } |
| 391 | if ((win.ncolors == 2) && |
| 392 | (INTENSITY(&colors[0])(30L*(int)(&colors[0])->red + 59L*(int)(&colors[0] )->green + 11L*(int)(&colors[0])->blue) > INTENSITY(&colors[1])(30L*(int)(&colors[1])->red + 59L*(int)(&colors[1] )->green + 11L*(int)(&colors[1])->blue))) |
| 393 | flags ^= F_INVERT256; |
| 394 | } |
| 395 | if (plane >= (long)win.pixmap_depth) { |
| 396 | fprintf(stderrstderr,"xpr: plane number exceeds image depth\n"); |
| 397 | exit(1); |
| 398 | } |
| 399 | size = win.bytes_per_line * win.pixmap_height; |
| 400 | if (win.pixmap_format == XYPixmap1) |
| 401 | size *= win.pixmap_depth; |
| 402 | data = malloc((unsigned)size); |
| 403 | fullread(0, data, (int)size); |
| 404 | if ((win.pixmap_depth > 1) || (win.byte_order != win.bitmap_bit_order)) { |
| 405 | data = convert_data(&win, data, plane, gray, colors, flags); |
| 406 | size = win.bytes_per_line * win.pixmap_height; |
| 407 | } |
| 408 | if (win.bitmap_bit_order == MSBFirst1) { |
| 409 | _swapbits((unsigned char *)data, size); |
| 410 | win.bitmap_bit_order = LSBFirst0; |
| 411 | } |
| 412 | if (flags & F_INVERT256) |
| 413 | _invbits((unsigned char *)data, size); |
| 414 | |
| 415 | /* calculate orientation and scale */ |
| 416 | setup_layout(device, (int) win.pixmap_width, (int) win.pixmap_height, |
| 417 | flags, width, height, header, trailer, &scale, &orientation); |
| 418 | |
| 419 | if (device == PS) { |
| 420 | iw = win.pixmap_width; |
| 421 | ih = win.pixmap_height; |
| 422 | sixmap = NULL((void*)0); |
| 423 | } else { |
| 424 | /* calculate w and h cell count */ |
| 425 | iw = win.pixmap_width; |
| 426 | ih = (win.pixmap_height + 5) / 6; |
| 427 | hpad = (ih * 6) - win.pixmap_height; |
| 428 | |
| 429 | /* build pixcells from input file */ |
| 430 | sixel_count = iw * ih; |
| 431 | sixmap = (unsigned char (*)[])malloc((unsigned)sixel_count); |
| 432 | build_sixmap(iw, ih, sixmap, hpad, &win, data); |
| 433 | } |
| 434 | |
| 435 | /* output commands and sixel graphics */ |
| 436 | if (device == LN03) { |
| 437 | /* ln03_grind_fonts(sixmap, iw, ih, scale, &pixmap); */ |
| 438 | ln03_setup(iw, ih, orientation, scale, left, top, |
| 439 | &left_margin, &top_margin, flags, header, trailer); |
| 440 | ln03_output_sixels(sixmap, iw, ih, (flags & F_NOSIXOPT8), split, |
| 441 | scale, top_margin, left_margin); |
| 442 | ln03_finish(); |
| 443 | } else if (device == LA100) { |
| 444 | la100_setup(iw, ih, scale); |
| 445 | la100_output_sixels(sixmap, iw, ih, (flags & F_NOSIXOPT8)); |
| 446 | la100_finish(); |
| 447 | } else if (device == PS) { |
| 448 | ps_setup(iw, ih, orientation, scale, left, top, |
| 449 | flags, header, trailer, w_name); |
| 450 | ps_output_bits(iw, ih, flags, orientation, &win, data); |
| 451 | ps_finish(); |
| 452 | } else { |
| 453 | fprintf(stderrstderr, "xpr: device not supported\n"); |
| 454 | } |
| 455 | |
| 456 | /* print some statistics */ |
| 457 | if (flags & F_REPORT64) { |
| 458 | fprintf(stderrstderr, "Name: %s\n", w_name); |
| 459 | fprintf(stderrstderr, "Width: %d, Height: %d\n", (int)win.pixmap_width, |
| 460 | (int)win.pixmap_height); |
| 461 | fprintf(stderrstderr, "Orientation: %s, Scale: %d\n", |
| 462 | (orientation==PORTRAIT) ? "Portrait" : "Landscape", scale); |
| 463 | } |
| 464 | if (((device == LN03) || (device == LA100)) && (flags & F_DUMP4)) |
| 465 | dump_sixmap(sixmap, iw, ih); |
| 466 | exit(EXIT_SUCCESS0); |
| 467 | } |
| 468 | |
| 469 | static |
| 470 | void usage(void) |
| 471 | { |
| 472 | fprintf(stderrstderr, "usage: %s [options] [file]\n", progname); |
| 473 | fprintf(stderrstderr, " -append <file> -noff -output <file>\n"); |
| 474 | fprintf(stderrstderr, " -compact\n"); |
| 475 | fprintf(stderrstderr, " -device {ln03 | la100 | ps | lw | pp | ljet | pjet | pjetxl}\n"); |
| 476 | fprintf(stderrstderr, " -dump\n"); |
| 477 | fprintf(stderrstderr, " -gamma <correction>\n"); |
| 478 | fprintf(stderrstderr, " -gray {2 | 3 | 4}\n"); |
| 479 | fprintf(stderrstderr, " -height <inches> -width <inches>\n"); |
| 480 | fprintf(stderrstderr, " -header <string> -trailer <string>\n"); |
| 481 | fprintf(stderrstderr, " -landscape -portrait\n"); |
| 482 | fprintf(stderrstderr, " -left <inches> -top <inches>\n"); |
| 483 | fprintf(stderrstderr, " -noposition\n"); |
| 484 | fprintf(stderrstderr, " -nosixopt\n"); |
| 485 | fprintf(stderrstderr, " -plane <n>\n"); |
| 486 | fprintf(stderrstderr, " -psfig\n"); |
| 487 | fprintf(stderrstderr, " -render <type>\n"); |
| 488 | fprintf(stderrstderr, " -report\n"); |
| 489 | fprintf(stderrstderr, " -rv\n"); |
| 490 | fprintf(stderrstderr, " -scale <scale>\n"); |
| 491 | fprintf(stderrstderr, " -slide\n"); |
| 492 | fprintf(stderrstderr, " -split <n-pages>\n"); |
| 493 | exit(EXIT_FAILURE1); |
| 494 | } |
| 495 | |
| 496 | static |
| 497 | void parse_args( |
| 498 | int argc, |
| 499 | char **argv, |
| 500 | int *scale, |
| 501 | int *width, |
| 502 | int *height, |
| 503 | int *left, |
| 504 | int *top, |
| 505 | enum device *device, |
| 506 | int *flags, |
| 507 | int *split, |
| 508 | char **header, |
| 509 | char **trailer, |
| 510 | int *plane, |
| 511 | GrayPtr *gray, |
| 512 | int *density, |
| 513 | unsigned int *cutoff, |
| 514 | float *gamma, |
| 515 | int *render) |
| 516 | { |
| 517 | register char *output_filename; |
| 518 | register int f; |
| 519 | register int len; |
| 520 | register int pos; |
| 521 | |
| 522 | output_filename = NULL((void*)0); |
| 523 | *device = PS; /* default */ |
| 524 | *flags = 0; |
| 525 | *scale = 0; |
| 526 | *split = 1; |
| 527 | *width = -1; |
| 528 | *height = -1; |
| 529 | *top = -1; |
| 530 | *left = -1; |
| 531 | *header = NULL((void*)0); |
| 532 | *trailer = NULL((void*)0); |
| 533 | *plane = -1; |
| 534 | *gray = (GrayPtr)NULL((void*)0); |
| 535 | *density = 0; |
| 536 | *cutoff = DEFAULT_CUTOFF((unsigned int) (0xFFFF * 0.50)); |
| 537 | *gamma = -1.0; |
| 538 | *render = 0; |
| 539 | |
| 540 | for (argc--, argv++; argc > 0; argc--, argv++) { |
| 541 | if (argv[0][0] != '-') { |
| 542 | infilename = *argv; |
| 543 | continue; |
| 544 | } |
| 545 | len = strlen(*argv); |
| 546 | switch (argv[0][1]) { |
| 547 | case 'a': /* -append <filename> */ |
| 548 | if (!bcmp(*argv, "-append", len)) { |
| 549 | argc--; argv++; |
| 550 | if (argc == 0) usage(); |
| 551 | output_filename = *argv; |
| 552 | *flags |= F_APPEND16; |
| 553 | } else |
| 554 | usage(); |
| 555 | break; |
| 556 | |
| 557 | case 'c': /* -compact | -cutoff <intensity> */ |
| 558 | if (len <= 2 ) |
| 559 | usage(); |
| 560 | if (!bcmp(*argv, "-compact", len)) { |
| 561 | *flags |= F_COMPACT128; |
| 562 | } else if (!bcmp(*argv, "-cutoff", len)) { |
| 563 | argc--; argv++; |
| 564 | if (argc == 0) usage(); |
| 565 | *cutoff = min((atof(*argv) / 100.0 * 0xFFFF), 0xFFFF)((((atof(*argv) / 100.0 * 0xFFFF))<(0xFFFF))?((atof(*argv) / 100.0 * 0xFFFF)):(0xFFFF)); |
| 566 | } else |
| 567 | usage(); |
| 568 | break; |
| 569 | |
| 570 | case 'd': /* -density <num> | -device <dev> | -dump */ |
| 571 | if (len <= 2) |
| 572 | usage(); |
| 573 | if (!bcmp(*argv, "-dump", len)) { |
| 574 | *flags |= F_DUMP4; |
| 575 | } else if (len <= 3) { |
| 576 | usage(); |
| 577 | } else if (!bcmp(*argv, "-density", len)) { |
| 578 | argc--; argv++; |
| 579 | if (argc == 0) usage(); |
| 580 | *density = atoi(*argv); |
| 581 | } else if (!bcmp(*argv, "-device", len)) { |
| 582 | argc--; argv++; |
| 583 | if (argc == 0) usage(); |
| 584 | len = strlen(*argv); |
| 585 | if (len < 2) |
| 586 | usage(); |
| 587 | if (!bcmp(*argv, "ln03", len)) { |
| 588 | *device = LN03; |
| 589 | } else if (!bcmp(*argv, "la100", len)) { |
| 590 | *device = LA100; |
| 591 | } else if (!bcmp(*argv, "ps", len)) { |
| 592 | *device = PS; |
| 593 | } else if (!bcmp(*argv, "lw", len)) { |
| 594 | *device = PS; |
| 595 | } else if (!bcmp(*argv, "pp", len)) { |
| 596 | *device = PP; |
| 597 | } else if (!bcmp(*argv, "ljet", len)) { |
| 598 | *device = LJET; |
| 599 | } else if (!bcmp(*argv, "pjet", len)) { |
| 600 | *device = PJET; |
| 601 | } else if (!bcmp(*argv, "pjetxl", len)) { |
| 602 | *device = PJETXL; |
| 603 | } else |
| 604 | usage(); |
| 605 | } else |
| 606 | usage(); |
| 607 | break; |
| 608 | |
| 609 | case 'g': /* -gamma <float> | -gray <num> */ |
| 610 | if (len <= 2) |
| 611 | usage(); |
| 612 | if (!bcmp(*argv, "-gamma", len)) { |
| 613 | argc--; argv++; |
| 614 | if (argc == 0) usage(); |
| 615 | *gamma = atof(*argv); |
| 616 | } else if (!bcmp(*argv, "-gray", len) || |
| 617 | !bcmp(*argv, "-grey", len)) { |
| 618 | argc--; argv++; |
| 619 | if (argc == 0) usage(); |
| 620 | switch (atoi(*argv)) { |
| 621 | case 2: |
| 622 | *gray = &gray2x2; |
| 623 | break; |
| 624 | case 3: |
| 625 | *gray = &gray3x3; |
| 626 | break; |
| 627 | case 4: |
| 628 | *gray = &gray4x4; |
| 629 | break; |
| 630 | default: |
| 631 | usage(); |
| 632 | } |
| 633 | *flags |= F_GRAY512; |
| 634 | } else |
| 635 | usage(); |
| 636 | break; |
| 637 | |
| 638 | case 'h': /* -height <inches> | -header <string> */ |
| 639 | if (len <= 3) |
| 640 | usage(); |
| 641 | if (!bcmp(*argv, "-height", len)) { |
| 642 | argc--; argv++; |
| 643 | if (argc == 0) usage(); |
| 644 | *height = (int)(300.0 * atof(*argv)); |
| 645 | } else if (!bcmp(*argv, "-header", len)) { |
| 646 | argc--; argv++; |
| 647 | if (argc == 0) usage(); |
| 648 | *header = *argv; |
| 649 | } else |
| 650 | usage(); |
| 651 | break; |
| 652 | |
| 653 | case 'l': /* -landscape | -left <inches> */ |
| 654 | if (len <= 2) |
| 655 | usage(); |
| 656 | if (!bcmp(*argv, "-landscape", len)) { |
| 657 | *flags |= F_LANDSCAPE2; |
| 658 | } else if (!bcmp(*argv, "-left", len)) { |
| 659 | argc--; argv++; |
| 660 | if (argc == 0) usage(); |
| 661 | *left = (int)(300.0 * atof(*argv)); |
| 662 | } else |
| 663 | usage(); |
| 664 | break; |
| 665 | |
| 666 | case 'n': /* -nosixopt | -noff | -noposition */ |
| 667 | if (len <= 3) |
| 668 | usage(); |
| 669 | if (!bcmp(*argv, "-nosixopt", len)) { |
| 670 | *flags |= F_NOSIXOPT8; |
| 671 | } else if (!bcmp(*argv, "-noff", len)) { |
| 672 | *flags |= F_NOFF32; |
| 673 | } else if (!bcmp(*argv, "-noposition", len)) { |
| 674 | *flags |= F_NPOSITION1024; |
| 675 | } else |
| 676 | usage(); |
| 677 | break; |
| 678 | |
| 679 | case 'o': /* -output <filename> */ |
| 680 | if (!bcmp(*argv, "-output", len)) { |
| 681 | argc--; argv++; |
| 682 | if (argc == 0) usage(); |
| 683 | output_filename = *argv; |
| 684 | } else |
| 685 | usage(); |
| 686 | break; |
| 687 | |
| 688 | case 'p': /* -portrait | -plane <n> */ |
| 689 | if (len <= 2) |
| 690 | usage(); |
| 691 | if (!bcmp(*argv, "-portrait", len)) { |
| 692 | *flags |= F_PORTRAIT1; |
| 693 | } else if (!bcmp(*argv, "-plane", len)) { |
| 694 | argc--; argv++; |
| 695 | if (argc == 0) usage(); |
| 696 | *plane = atoi(*argv); |
| 697 | } else if (!bcmp(*argv, "-psfig", len)) { |
| 698 | *flags |= F_NPOSITION1024; |
| 699 | } else |
| 700 | usage(); |
| 701 | break; |
| 702 | |
| 703 | case 'r': /* -render <type> | -report | -rv */ |
| 704 | if (len <= 2) |
| 705 | usage(); |
| 706 | if (!bcmp(*argv, "-rv", len)) { |
| 707 | *flags |= F_INVERT256; |
| 708 | } else if (len <= 3) { |
| 709 | usage(); |
| 710 | } else if (!bcmp(*argv, "-render", len)) { |
| 711 | argc--; argv++; |
| 712 | if (argc == 0) usage(); |
| 713 | *render = atoi(*argv); |
| 714 | } else if (!bcmp(*argv, "-report", len)) { |
| 715 | *flags |= F_REPORT64; |
| 716 | } else |
| 717 | usage(); |
| 718 | break; |
| 719 | |
| 720 | case 's': /* -scale <scale> | -slide | -split <n-pages> */ |
| 721 | if (len <= 2) |
| 722 | usage(); |
| 723 | if (!bcmp(*argv, "-scale", len)) { |
| 724 | argc--; argv++; |
| 725 | if (argc == 0) usage(); |
| 726 | *scale = atoi(*argv); |
| 727 | } else if (!bcmp(*argv, "-slide", len)) { |
| 728 | *flags |= F_SLIDE2048; |
| 729 | } else if (!bcmp(*argv, "-split", len)) { |
| 730 | argc--; argv++; |
| 731 | if (argc == 0) usage(); |
| 732 | *split = atoi(*argv); |
| 733 | } else |
| 734 | usage(); |
| 735 | break; |
| 736 | |
| 737 | case 't': /* -top <inches> | -trailer <string> */ |
| 738 | if (len <= 2) |
| 739 | usage(); |
| 740 | if (!bcmp(*argv, "-top", len)) { |
| 741 | argc--; argv++; |
| 742 | if (argc == 0) usage(); |
| 743 | *top = (int)(300.0 * atof(*argv)); |
| 744 | } else if (!bcmp(*argv, "-trailer", len)) { |
| 745 | argc--; argv++; |
| 746 | if (argc == 0) usage(); |
| 747 | *trailer = *argv; |
| 748 | } else |
| 749 | usage(); |
| 750 | break; |
| 751 | |
| 752 | case 'w': /* -width <inches> */ |
| 753 | if (!bcmp(*argv, "-width", len)) { |
| 754 | argc--; argv++; |
| 755 | if (argc == 0) usage(); |
| 756 | *width = (int)(300.0 * atof(*argv)); |
| 757 | } else |
| 758 | usage(); |
| 759 | break; |
| 760 | |
| 761 | default: |
| 762 | usage(); |
| 763 | break; |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | if (infilename) { |
| 768 | f = open(infilename, O_RDONLY00|O_BINARY0, 0); |
| 769 | if (f < 0) { |
| 770 | fprintf(stderrstderr, "xpr: error opening \"%s\" for input\n", |
| 771 | infilename); |
| 772 | perror(""); |
| 773 | exit(1); |
| 774 | } |
| 775 | dup2(f, 0); |
| 776 | close(f); |
| 777 | } else |
| 778 | infilename = "stdin"; |
| 779 | |
| 780 | if (output_filename != NULL((void*)0)) { |
| 781 | if (!(*flags & F_APPEND16)) { |
| 782 | f = open(output_filename, O_CREAT0100|O_WRONLY01|O_TRUNC01000, 0664); |
| 783 | } else { |
| 784 | f = open(output_filename, O_WRONLY01, 0); |
| 785 | } |
| 786 | if (f < 0) { |
| 787 | fprintf(stderrstderr, "xpr: error opening \"%s\" for output\n", |
| 788 | output_filename); |
| 789 | perror("xpr"); |
| 790 | exit(1); |
| 791 | } |
| 792 | if (*flags & F_APPEND16) { |
| 793 | pos = lseek(f, 0, 2); /* get eof position */ |
| 794 | if ((*flags & F_NOFF32) && |
| 795 | !(*device == LJET || *device == PJET || *device == PJETXL)) |
| 796 | pos -= 3; /* set position before trailing */ |
| 797 | /* formfeed and reset */ |
| 798 | lseek(f, pos, 0); /* set pointer */ |
| 799 | } |
| 800 | dup2(f, 1); |
| 801 | close(f); |
| 802 | } |
| 803 | } |
| 804 | |
| 805 | static |
| 806 | void setup_layout( |
| 807 | enum device device, |
| 808 | int win_width, |
| 809 | int win_height, |
| 810 | int flags, |
| 811 | int width, |
| 812 | int height, |
| 813 | char *header, |
| 814 | char *trailer, |
| 815 | int *scale, |
| 816 | enum orientation *orientation) |
| 817 | { |
| 818 | register int w_scale; |
| 819 | register int h_scale; |
| 820 | register int iscale = *scale; |
| 821 | register int w_max; |
| 822 | register int h_max; |
| 823 | |
| 824 | if (header != NULL((void*)0)) win_height += 75; |
| 825 | if (trailer != NULL((void*)0)) win_height += 75; |
| 826 | |
| 827 | /* check maximum width and height; set orientation and scale*/ |
| 828 | if (device == LN03 || device == PS) { |
| 829 | if ((win_width < win_height || (flags & F_PORTRAIT1)) && |
| 830 | !(flags & F_LANDSCAPE2)) { |
| 831 | *orientation = PORTRAIT; |
| 832 | w_max = (width > 0)? width : W_MAX2400; |
| 833 | h_max = (height > 0)? height : H_MAX3150; |
| 834 | w_scale = w_max / win_width; |
| 835 | h_scale = h_max / win_height; |
| 836 | *scale = min(w_scale, h_scale)(((w_scale)<(h_scale))?(w_scale):(h_scale)); |
| 837 | } else { |
| 838 | *orientation = LANDSCAPE; |
| 839 | w_max = (width > 0)? width : H_MAX3150; |
| 840 | h_max = (height > 0)? height : W_MAX2400; |
| 841 | w_scale = w_max / win_width; |
| 842 | h_scale = h_max / win_height; |
| 843 | *scale = min(w_scale, h_scale)(((w_scale)<(h_scale))?(w_scale):(h_scale)); |
| 844 | } |
| 845 | } else { /* device == LA100 */ |
| 846 | *orientation = PORTRAIT; |
| 847 | *scale = W_MAX2400 / win_width; |
| 848 | } |
| 849 | if (*scale == 0) *scale = 1; |
| 850 | if (*scale > 6) *scale = 6; |
| 851 | if (iscale > 0 && iscale < *scale) *scale = iscale; |
| 852 | } |
| 853 | |
| 854 | static |
| 855 | char *convert_data( |
| 856 | XWDFileHeader *win, |
| 857 | char *data, |
| 858 | int plane, |
| 859 | GrayPtr gray, |
| 860 | XColor *colors, |
| 861 | int flags) |
| 862 | { |
| 863 | XImage in_image_struct, out_image_struct; |
| 864 | register XImage *in_image, *out_image; |
| 865 | register int x, y; |
| 866 | |
| 867 | if ((win->pixmap_format == XYPixmap1) && (plane >= 0)) { |
| 868 | data += win->bytes_per_line * win->pixmap_height * |
| 869 | (win->pixmap_depth - (plane + 1)); |
| 870 | win->pixmap_format = XYBitmap0; |
| 871 | win->pixmap_depth = 1; |
| 872 | return data; |
| 873 | } |
| 874 | |
| 875 | /* initialize the input image */ |
| 876 | |
| 877 | in_image = &in_image_struct; |
| 878 | in_image->byte_order = win->byte_order; |
| 879 | in_image->bitmap_unit = win->bitmap_unit; |
| 880 | in_image->bitmap_bit_order = win->bitmap_bit_order; |
| 881 | in_image->depth = win->pixmap_depth; |
| 882 | in_image->bits_per_pixel = win->bits_per_pixel; |
| 883 | in_image->format = win->pixmap_format, |
| 884 | in_image->xoffset = win->xoffset, |
| 885 | in_image->data = data; |
| 886 | in_image->width = win->pixmap_width; |
| 887 | in_image->height = win->pixmap_height; |
| 888 | in_image->bitmap_pad = win->bitmap_pad; |
| 889 | in_image->bytes_per_line = win->bytes_per_line; |
| 890 | in_image->red_mask = win->red_mask; |
| 891 | in_image->green_mask = win->green_mask; |
| 892 | in_image->blue_mask = win->blue_mask; |
| 893 | in_image->obdata = NULL((void*)0); |
| 894 | if (!XInitImage(in_image)) { |
| 895 | fprintf(stderrstderr,"xpr: bad input image header data.\n"); |
| 896 | exit(1); |
| 897 | } |
| 898 | if ((flags & F_GRAY512) && (in_image->depth > 1) && (plane < 0)) { |
| 899 | win->pixmap_width *= gray->sizeX; |
| 900 | win->pixmap_height *= gray->sizeY; |
| 901 | } |
| 902 | win->xoffset = 0; |
| 903 | win->pixmap_format = XYBitmap0; |
| 904 | win->byte_order = LSBFirst0; |
| 905 | win->bitmap_unit = 8; |
| 906 | win->bitmap_bit_order = LSBFirst0; |
| 907 | win->bitmap_pad = 8; |
| 908 | win->pixmap_depth = 1; |
| 909 | win->bits_per_pixel = 1; |
| 910 | win->bytes_per_line = (win->pixmap_width + 7) >> 3; |
| 911 | |
| 912 | out_image = &out_image_struct; |
| 913 | out_image->byte_order = win->byte_order; |
| 914 | out_image->bitmap_unit = win->bitmap_unit; |
| 915 | out_image->bitmap_bit_order = win->bitmap_bit_order; |
| 916 | out_image->depth = win->pixmap_depth; |
| 917 | out_image->bits_per_pixel = win->bits_per_pixel; |
| 918 | out_image->format = win->pixmap_format; |
| 919 | out_image->xoffset = win->xoffset, |
| 920 | out_image->width = win->pixmap_width; |
| 921 | out_image->height = win->pixmap_height; |
| 922 | out_image->bitmap_pad = win->bitmap_pad; |
| 923 | out_image->bytes_per_line = win->bytes_per_line; |
| 924 | out_image->red_mask = 0; |
| 925 | out_image->green_mask = 0; |
| 926 | out_image->blue_mask = 0; |
| 927 | out_image->obdata = NULL((void*)0); |
| 928 | out_image->data = malloc((unsigned)out_image->bytes_per_line * |
| 929 | out_image->height); |
| 930 | if (!XInitImage(out_image)) { |
| 931 | fprintf(stderrstderr,"xpr: bad output image header data.\n"); |
| 932 | exit(1); |
| 933 | } |
| 934 | |
| 935 | if ((in_image->depth > 1) && (plane > 0)) { |
| 936 | for (y = 0; y < in_image->height; y++) |
| 937 | for (x = 0; x < in_image->width; x++) |
| 938 | XPutPixel(out_image, x, y,((*((out_image)->f.put_pixel))((out_image), (x), (y), (((( *((in_image)->f.get_pixel))((in_image), (x), (y))) >> plane) & 1))) |
| 939 | (XGetPixel(in_image, x, y) >> plane) & 1)((*((out_image)->f.put_pixel))((out_image), (x), (y), (((( *((in_image)->f.get_pixel))((in_image), (x), (y))) >> plane) & 1))); |
| 940 | } else if (plane == 0) { |
| 941 | for (y = 0; y < in_image->height; y++) |
| 942 | for (x = 0; x < in_image->width; x++) |
| 943 | XPutPixel(out_image, x, y, XGetPixel(in_image, x, y))((*((out_image)->f.put_pixel))((out_image), (x), (y), (((* ((in_image)->f.get_pixel))((in_image), (x), (y)))))); |
| 944 | } else if ((in_image->depth > 1) && |
| 945 | ((win->visual_class == TrueColor4) || |
| 946 | (win->visual_class == DirectColor5))) { |
| 947 | XColor color; |
| 948 | int direct = 0; |
| 949 | unsigned long rmask, gmask, bmask; |
| 950 | int rshift = 0, gshift = 0, bshift = 0; |
| 951 | |
| 952 | rmask = win->red_mask; |
| 953 | while (!(rmask & 1)) { |
| 954 | rmask >>= 1; |
| 955 | rshift++; |
| 956 | } |
| 957 | gmask = win->green_mask; |
| 958 | while (!(gmask & 1)) { |
| 959 | gmask >>= 1; |
| 960 | gshift++; |
| 961 | } |
| 962 | bmask = win->blue_mask; |
| 963 | while (!(bmask & 1)) { |
| 964 | bmask >>= 1; |
| 965 | bshift++; |
| 966 | } |
| 967 | if ((win->ncolors == 0) || (win->visual_class == DirectColor5)) |
| 968 | direct = 1; |
| 969 | if (flags & F_GRAY512) { |
| 970 | register int ox, oy; |
| 971 | int ix, iy; |
| 972 | unsigned long bits; |
| 973 | for (y = 0, oy = 0; y < in_image->height; y++, oy += gray->sizeY) |
| 974 | for (x = 0, ox = 0; x < in_image->width; x++, ox += gray->sizeX) |
| 975 | { |
| 976 | color.pixel = XGetPixel(in_image, x, y)((*((in_image)->f.get_pixel))((in_image), (x), (y))); |
| 977 | color.red = (color.pixel >> rshift) & rmask; |
| 978 | color.green = (color.pixel >> gshift) & gmask; |
| 979 | color.blue = (color.pixel >> bshift) & bmask; |
| 980 | if (!direct) { |
| 981 | color.red = colors[color.red].red; |
| 982 | color.green = colors[color.green].green; |
| 983 | color.blue = colors[color.blue].blue; |
| 984 | } |
| 985 | bits = gray->grayscales[(int)(gray->level * |
| 986 | INTENSITY(&color)(30L*(int)(&color)->red + 59L*(int)(&color)->green + 11L*(int)(&color)->blue)) / |
| 987 | (INTENSITYPER(100)(((1<<16)-1)*((long)(100))) + 1)]; |
| 988 | for (iy = 0; iy < gray->sizeY; iy++) |
| 989 | for (ix = 0; ix < gray->sizeX; ix++, bits >>= 1) |
| 990 | XPutPixel(out_image, ox + ix, oy + iy, bits)((*((out_image)->f.put_pixel))((out_image), (ox + ix), (oy + iy), (bits))); |
| 991 | } |
| 992 | } else { |
| 993 | for (y = 0; y < in_image->height; y++) |
| 994 | for (x = 0; x < in_image->width; x++) { |
| 995 | color.pixel = XGetPixel(in_image, x, y)((*((in_image)->f.get_pixel))((in_image), (x), (y))); |
| 996 | color.red = (color.pixel >> rshift) & rmask; |
| 997 | color.green = (color.pixel >> gshift) & gmask; |
| 998 | color.blue = (color.pixel >> bshift) & bmask; |
| 999 | if (!direct) { |
| 1000 | color.red = colors[color.red].red; |
| 1001 | color.green = colors[color.green].green; |
| 1002 | color.blue = colors[color.blue].blue; |
| 1003 | } |
| 1004 | XPutPixel(out_image, x, y,((*((out_image)->f.put_pixel))((out_image), (x), (y), ((30L *(int)(&color)->red + 59L*(int)(&color)->green + 11L*(int)(&color)->blue) > (((1<<16)-1)*((long )(50)))))) |
| 1005 | INTENSITY(&color) > HALFINTENSITY)((*((out_image)->f.put_pixel))((out_image), (x), (y), ((30L *(int)(&color)->red + 59L*(int)(&color)->green + 11L*(int)(&color)->blue) > (((1<<16)-1)*((long )(50)))))); |
| 1006 | } |
| 1007 | } |
| 1008 | } else if (flags & F_GRAY512) { |
| 1009 | register int ox, oy; |
| 1010 | int ix, iy; |
| 1011 | unsigned long bits; |
| 1012 | |
| 1013 | if (win->ncolors == 0) { |
| 1014 | fprintf(stderrstderr, "no colors in data, can't remap\n"); |
| 1015 | exit(1); |
| 1016 | } |
| 1017 | for (x = 0; x < win->ncolors; x++) { |
| 1018 | register XColor *color = &colors[x]; |
| 1019 | |
| 1020 | color->pixel = gray->grayscales[(gray->level * INTENSITY(color)(30L*(int)(color)->red + 59L*(int)(color)->green + 11L* (int)(color)->blue)) / |
| 1021 | (INTENSITYPER(100)(((1<<16)-1)*((long)(100))) + 1)]; |
| 1022 | } |
| 1023 | for (y = 0, oy = 0; y < in_image->height; y++, oy += gray->sizeY) |
| 1024 | for (x = 0, ox = 0; x < in_image->width; x++, ox += gray->sizeX) { |
| 1025 | bits = colors[XGetPixel(in_image, x, y)((*((in_image)->f.get_pixel))((in_image), (x), (y)))].pixel; |
| 1026 | for (iy = 0; iy < gray->sizeY; iy++) |
| 1027 | for (ix = 0; ix < gray->sizeX; ix++, bits >>= 1) |
| 1028 | XPutPixel(out_image, ox + ix, oy + iy, bits)((*((out_image)->f.put_pixel))((out_image), (ox + ix), (oy + iy), (bits))); |
| 1029 | } |
| 1030 | } else { |
| 1031 | if (win->ncolors == 0) { |
| 1032 | fprintf(stderrstderr, "no colors in data, can't remap\n"); |
| 1033 | exit(1); |
| 1034 | } |
| 1035 | for (x = 0; x < win->ncolors; x++) { |
| 1036 | register XColor *color = &colors[x]; |
| 1037 | color->pixel = (INTENSITY(color)(30L*(int)(color)->red + 59L*(int)(color)->green + 11L* (int)(color)->blue) > HALFINTENSITY(((1<<16)-1)*((long)(50)))); |
| 1038 | } |
| 1039 | for (y = 0; y < in_image->height; y++) |
| 1040 | for (x = 0; x < in_image->width; x++) |
| 1041 | XPutPixel(out_image, x, y,((*((out_image)->f.put_pixel))((out_image), (x), (y), (colors [((*((in_image)->f.get_pixel))((in_image), (x), (y)))].pixel ))) |
| 1042 | colors[XGetPixel(in_image, x, y)].pixel)((*((out_image)->f.put_pixel))((out_image), (x), (y), (colors [((*((in_image)->f.get_pixel))((in_image), (x), (y)))].pixel ))); |
| 1043 | } |
| 1044 | free(data); |
| 1045 | return (out_image->data); |
| 1046 | } |
| 1047 | |
| 1048 | static |
| 1049 | void dump_sixmap( |
| 1050 | register unsigned char (*sixmap)[], |
| 1051 | int iw, |
| 1052 | int ih) |
| 1053 | { |
| 1054 | register int i, j; |
| 1055 | register unsigned char *c; |
| 1056 | |
| 1057 | c = (unsigned char *)sixmap; |
| 1058 | fprintf(stderrstderr, "Sixmap:\n"); |
| 1059 | for (i = 0; i < ih; i++) { |
| 1060 | for (j = 0; j < iw; j++) { |
| 1061 | fprintf(stderrstderr, "%02X ", *c++); |
| 1062 | } |
| 1063 | fprintf(stderrstderr, "\n\n"); |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | static |
| 1068 | void build_sixmap( |
| 1069 | int ih, |
| 1070 | int iw, |
| 1071 | unsigned char (*sixmap)[], |
| 1072 | int hpad, |
| 1073 | XWDFileHeader *win, |
| 1074 | const char *data) |
| 1075 | { |
| 1076 | int iwb = win->bytes_per_line; |
| 1077 | unsigned char *line[6]; |
| 1078 | register unsigned char *c; |
| 1079 | register int i, j; |
| 1080 | #ifdef NOINLINE1 |
| 1081 | register int w; |
| 1082 | #endif |
| 1083 | register int sixel; |
| 1084 | unsigned char *buffer = (unsigned char *)data; |
| 1085 | |
| 1086 | c = (unsigned char *)sixmap; |
| 1087 | |
| 1088 | |
| 1089 | while (--ih >= 0) { |
| 1090 | for (i = 0; i <= 5; i++) { |
| 1091 | line[i] = buffer; |
| 1092 | buffer += iwb; |
| 1093 | } |
| 1094 | if ((ih == 0) && (hpad > 0)) { |
| 1095 | unsigned char *ffbuf; |
| 1096 | |
| 1097 | ffbuf = (unsigned char *)malloc((unsigned)iwb); |
| 1098 | for (j = 0; j < iwb; j++) |
| 1099 | ffbuf[j] = 0xFF; |
| 1100 | for (; --hpad >= 0; i--) |
| 1101 | line[i] = ffbuf; |
| 1102 | } |
| 1103 | |
| 1104 | #ifndef NOINLINE1 |
| 1105 | for (i = 0; i < iw; i++) { |
| 1106 | sixel = extzv(line[0], i, 1); |
| 1107 | sixel |= extzv(line[1], i, 1) << 1; |
| 1108 | sixel |= extzv(line[2], i, 1) << 2; |
| 1109 | sixel |= extzv(line[3], i, 1) << 3; |
| 1110 | sixel |= extzv(line[4], i, 1) << 4; |
| 1111 | sixel |= extzv(line[5], i, 1) << 5; |
| 1112 | *c++ = sixel; |
| 1113 | } |
| 1114 | #else |
| 1115 | for (i = 0, w = iw; w > 0; i++) { |
| 1116 | for (j = 0; j <= 7; j++) { |
| 1117 | sixel = ((line[0][i] >> j) & 1); |
| 1118 | sixel |= ((line[1][i] >> j) & 1) << 1; |
| 1119 | sixel |= ((line[2][i] >> j) & 1) << 2; |
| 1120 | sixel |= ((line[3][i] >> j) & 1) << 3; |
| 1121 | sixel |= ((line[4][i] >> j) & 1) << 4; |
| 1122 | sixel |= ((line[5][i] >> j) & 1) << 5; |
| 1123 | *c++ = sixel; |
| 1124 | if (--w == 0) break; |
| 1125 | } |
| 1126 | } |
| 1127 | #endif |
| 1128 | } |
| 1129 | } |
| 1130 | |
| 1131 | /* |
| 1132 | ln03_grind_fonts(sixmap, iw, ih, scale, pixmap) |
| 1133 | unsigned char (*sixmap)[]; |
| 1134 | int iw; |
| 1135 | int ih; |
| 1136 | int scale; |
| 1137 | struct pixmap (**pixmap)[]; |
| 1138 | { |
| 1139 | } |
| 1140 | */ |
| 1141 | |
| 1142 | static |
| 1143 | void ln03_setup( |
| 1144 | int iw, |
| 1145 | int ih, |
| 1146 | enum orientation orientation, |
| 1147 | int scale, |
| 1148 | int left, |
| 1149 | int top, |
| 1150 | int *left_margin, |
| 1151 | int *top_margin, |
| 1152 | int flags, |
| 1153 | const char *header, |
| 1154 | const char *trailer) |
| 1155 | { |
| 1156 | register int i; |
| 1157 | register int lm, tm, xm; |
| 1158 | char buf[256]; |
| 1159 | register char *bp = buf; |
| 1160 | |
| 1161 | if (!(flags & F_APPEND16)) { |
| 1162 | sprintf(bp, LN_STR"\033[!p"); bp += 4; |
| 1163 | sprintf(bp, LN_SSU"\033[%d I", 7); bp += 5; |
| 1164 | sprintf(bp, LN_PUM_SET"\033[11h"); bp += sizeof LN_PUM_SET"\033[11h" - 1; |
| 1165 | } |
| 1166 | |
| 1167 | if (orientation == PORTRAIT) { |
| 1168 | lm = (left > 0)? left : (((W_MAX2400 - scale * iw) / 2) + W_MARGIN75); |
| 1169 | tm = (top > 0)? top : (((H_MAX3150 - scale * ih * 6) / 2) + H_MARGIN37); |
| 1170 | sprintf(bp, LN_PFS"\033[%s J", "?20"); bp += 7; |
| 1171 | sprintf(bp, LN_DECOPM_SET"\033[?52h"); bp += sizeof LN_DECOPM_SET"\033[?52h" - 1; |
| 1172 | sprintf(bp, LN_DECSLRM"\033[%d;%ds", lm, W_PAGE2550 - lm); bp += strlen(bp); |
| 1173 | } else { |
| 1174 | lm = (left > 0)? left : (((H_MAX3150 - scale * iw) / 2) + H_MARGIN37); |
| 1175 | tm = (top > 0)? top : (((W_MAX2400 - scale * ih * 6) / 2) + W_MARGIN75); |
| 1176 | sprintf(bp, LN_PFS"\033[%s J", "?21"); bp += 7; |
| 1177 | sprintf(bp, LN_DECOPM_SET"\033[?52h"); bp += sizeof LN_DECOPM_SET"\033[?52h" - 1; |
| 1178 | sprintf(bp, LN_DECSLRM"\033[%d;%ds", lm, H_PAGE3225 - lm); bp += strlen(bp); |
| 1179 | } |
| 1180 | |
| 1181 | if (header != NULL((void*)0)) { |
| 1182 | sprintf(bp, LN_VPA"\033[%dd", tm - 100); bp += strlen(bp); |
| 1183 | i = strlen(header); |
| 1184 | xm = (((scale * iw) - (i * 30)) / 2) + lm; |
| 1185 | sprintf(bp, LN_HPA"\033[%d`", xm); bp += strlen(bp); |
| 1186 | sprintf(bp, LN_SGR"\033[1%dm", 3); bp += strlen(bp); |
| 1187 | memmove(bp, header, i); |
| 1188 | bp += i; |
| 1189 | } |
| 1190 | if (trailer != NULL((void*)0)) { |
| 1191 | sprintf(bp, LN_VPA"\033[%dd", tm + (scale * ih * 6) + 75); bp += strlen(bp); |
| 1192 | i = strlen(trailer); |
| 1193 | xm = (((scale * iw) - (i * 30)) / 2) + lm; |
| 1194 | sprintf(bp, LN_HPA"\033[%d`", xm); bp += strlen(bp); |
| 1195 | sprintf(bp, LN_SGR"\033[1%dm", 3); bp += strlen(bp); |
| 1196 | memmove(bp, trailer, i); |
| 1197 | bp += i; |
| 1198 | } |
| 1199 | |
| 1200 | sprintf(bp, LN_HPA"\033[%d`", lm); bp += strlen(bp); |
| 1201 | sprintf(bp, LN_VPA"\033[%dd", tm); bp += strlen(bp); |
| 1202 | sprintf(bp, LN_SIXEL_GRAPHICS"\033P%d;%d;%dq", 9, 0, scale); bp += strlen(bp); |
| 1203 | sprintf(bp, "\"1;1"); bp += 4; /* Pixel aspect ratio */ |
| 1204 | write(1, buf, bp-buf); |
| 1205 | *top_margin = tm; |
| 1206 | *left_margin = lm; |
| 1207 | } |
| 1208 | |
| 1209 | static |
| 1210 | void ln03_finish(void) |
| 1211 | { |
| 1212 | char buf[256]; |
| 1213 | register char *bp = buf; |
| 1214 | |
| 1215 | sprintf(bp, LN_DECOPM_RESET"\033[?52I"); bp += sizeof LN_DECOPM_SET"\033[?52h" - 1; |
| 1216 | sprintf(bp, LN_LNM"\033[20h"); bp += 5; |
| 1217 | sprintf(bp, LN_PUM"\033[11I"); bp += 5; |
| 1218 | sprintf(bp, LN_PFS"\033[%s J", "?20"); bp += 7; |
| 1219 | sprintf(bp, LN_SGR"\033[1%dm", 0); bp += strlen(bp); |
| 1220 | sprintf(bp, LN_HPA"\033[%d`", 1); bp += strlen(bp); |
| 1221 | sprintf(bp, LN_VPA"\033[%dd", 1); bp += strlen(bp); |
| 1222 | |
| 1223 | |
| 1224 | write(1, buf, bp-buf); |
| 1225 | } |
| 1226 | |
| 1227 | /*ARGSUSED*/ |
| 1228 | static |
| 1229 | void la100_setup(int iw, int ih, int scale) |
| 1230 | { |
| 1231 | char buf[256]; |
| 1232 | register char *bp; |
| 1233 | int lm, tm; |
| 1234 | |
| 1235 | bp = buf; |
| 1236 | lm = ((80 - (int)((double)iw / 6.6)) / 2) - 1; |
| 1237 | if (lm < 1) lm = 1; |
| 1238 | tm = ((66 - (int)((double)ih / 2)) / 2) - 1; |
| 1239 | if (tm < 1) tm = 1; |
| 1240 | sprintf(bp, "\033[%d;%ds", lm, 81-lm); bp += strlen(bp); |
| 1241 | sprintf(bp, "\033[?7l"); bp += 5; |
| 1242 | sprintf(bp, "\033[%dd", tm); bp += strlen(bp); |
| 1243 | sprintf(bp, "\033[%d`", lm); bp += strlen(bp); |
| 1244 | sprintf(bp, "\033P0q"); bp += 4; |
| 1245 | write(1, buf, bp-buf); |
| 1246 | } |
| 1247 | |
| 1248 | #define LA100_RESET"\033[1;80s\033[?7h" "\033[1;80s\033[?7h" |
| 1249 | |
| 1250 | static |
| 1251 | void la100_finish(void) |
| 1252 | { |
| 1253 | write(1, LA100_RESET"\033[1;80s\033[?7h", sizeof LA100_RESET"\033[1;80s\033[?7h" - 1); |
| 1254 | } |
| 1255 | |
| 1256 | #define COMMENTVERSION"PS-Adobe-1.0" "PS-Adobe-1.0" |
| 1257 | |
| 1258 | #ifdef XPROLOG |
| 1259 | /* for debugging, get the prolog from a file */ |
| 1260 | static |
| 1261 | void dump_prolog(int flags) |
| 1262 | { |
| 1263 | char *fname=(flags & F_COMPACT128) ? "prolog.compact" : "prolog"; |
| 1264 | FILE *fi = fopen(fname,"r"); |
| 1265 | char buf[1024]; |
| 1266 | |
| 1267 | if (fi==NULL((void*)0)) { |
| 1268 | perror(fname); |
| 1269 | exit(1); |
| 1270 | } |
| 1271 | while (fgets(buf,1024,fi)) fputs(buf,stdoutstdout); |
| 1272 | fclose(fi); |
| 1273 | } |
| 1274 | |
| 1275 | #else /* XPROLOG */ |
| 1276 | /* postscript "programs" to unpack and print the bitmaps being sent */ |
| 1277 | |
| 1278 | static const |
| 1279 | char *ps_prolog_compact[] = { |
| 1280 | "%%Pages: 1", |
| 1281 | "%%EndProlog", |
| 1282 | "%%Page: 1 1", |
| 1283 | "", |
| 1284 | "/bitgen", |
| 1285 | " {", |
| 1286 | " /nextpos 0 def", |
| 1287 | " currentfile bufspace readhexstring pop % get a chunk of input", |
| 1288 | " % interpret each byte of the input", |
| 1289 | " {", |
| 1290 | " flag { % if the previous byte was FF", |
| 1291 | " /len exch def % this byte is a count", |
| 1292 | " result", |
| 1293 | " nextpos", |
| 1294 | " FFstring 0 len getinterval % grap a chunk of FF's", |
| 1295 | " putinterval % and stuff them into the result", |
| 1296 | " /nextpos nextpos len add def", |
| 1297 | " /flag false def", |
| 1298 | " }{ % otherwise", |
| 1299 | " dup 255 eq { % if this byte is FF", |
| 1300 | " /flag true def % just set the flag", |
| 1301 | " pop % and toss the FF", |
| 1302 | " }{ % otherwise", |
| 1303 | " % move this byte to the result", |
| 1304 | " result nextpos", |
| 1305 | " 3 -1 roll % roll the current byte back to the top", |
| 1306 | " put", |
| 1307 | " /nextpos nextpos 1 add def", |
| 1308 | " } ifelse", |
| 1309 | " } ifelse", |
| 1310 | " } forall", |
| 1311 | " % trim unused space from end of result", |
| 1312 | " result 0 nextpos getinterval", |
| 1313 | " } def", |
| 1314 | "", |
| 1315 | "", |
| 1316 | "/bitdump % stk: width, height, iscale", |
| 1317 | " % dump a bit image with lower left corner at current origin,", |
| 1318 | " % scaling by iscale (iscale=1 means 1/300 inch per pixel)", |
| 1319 | " {", |
| 1320 | " % read arguments", |
| 1321 | " /iscale exch def", |
| 1322 | " /height exch def", |
| 1323 | " /width exch def", |
| 1324 | "", |
| 1325 | " % scale appropriately", |
| 1326 | " width iscale mul height iscale mul scale", |
| 1327 | "", |
| 1328 | " % data structures:", |
| 1329 | "", |
| 1330 | " % allocate space for one line of input", |
| 1331 | " /bufspace 36 string def", |
| 1332 | "", |
| 1333 | " % string of FF's", |
| 1334 | " /FFstring 256 string def", |
| 1335 | " % for all i FFstring[i]=255", |
| 1336 | " 0 1 255 { FFstring exch 255 put } for", |
| 1337 | "", |
| 1338 | " % 'escape' flag", |
| 1339 | " /flag false def", |
| 1340 | "", |
| 1341 | " % space for a chunk of generated bits", |
| 1342 | " /result 4590 string def", |
| 1343 | "", |
| 1344 | " % read and dump the image", |
| 1345 | " width height 1 [width 0 0 height neg 0 height]", |
| 1346 | " { bitgen }", |
| 1347 | " image", |
| 1348 | " } def", |
| 1349 | NULL((void*)0) |
| 1350 | }; |
| 1351 | |
| 1352 | static const |
| 1353 | char *ps_prolog[] = { |
| 1354 | "%%Pages: 1", |
| 1355 | "%%EndProlog", |
| 1356 | "%%Page: 1 1", |
| 1357 | "", |
| 1358 | "/bitdump % stk: width, height, iscale", |
| 1359 | "% dump a bit image with lower left corner at current origin,", |
| 1360 | "% scaling by iscale (iscale=1 means 1/300 inch per pixel)", |
| 1361 | "{", |
| 1362 | " % read arguments", |
| 1363 | " /iscale exch def", |
| 1364 | " /height exch def", |
| 1365 | " /width exch def", |
| 1366 | "", |
| 1367 | " % scale appropriately", |
| 1368 | " width iscale mul height iscale mul scale", |
| 1369 | "", |
| 1370 | " % allocate space for one scanline of input", |
| 1371 | " /picstr % picstr holds one scan line", |
| 1372 | " width 7 add 8 idiv % width of image in bytes = ceiling(width/8)", |
| 1373 | " string", |
| 1374 | " def", |
| 1375 | "", |
| 1376 | " % read and dump the image", |
| 1377 | " width height 1 [width 0 0 height neg 0 height]", |
| 1378 | " { currentfile picstr readhexstring pop }", |
| 1379 | " image", |
| 1380 | "} def", |
| 1381 | NULL((void*)0) |
| 1382 | }; |
| 1383 | |
| 1384 | static |
| 1385 | void dump_prolog(int flags) { |
| 1386 | const char **p = (flags & F_COMPACT128) ? ps_prolog_compact : ps_prolog; |
| 1387 | while (*p) |
| 1388 | printf("%s\n", *p++); |
| 1389 | } |
| 1390 | #endif /* XPROLOG */ |
| 1391 | |
| 1392 | #define PAPER_WIDTH85*30 85*30 /* 8.5 inches */ |
| 1393 | #define PAPER_LENGTH11*300 11*300 /* 11 inches */ |
| 1394 | |
| 1395 | static |
| 1396 | int points(int n) |
| 1397 | { |
| 1398 | /* scale n from pixels (1/300 inch) to points (1/72 inch) */ |
| 1399 | n *= 72; |
| 1400 | return n/300; |
| 1401 | } |
| 1402 | |
| 1403 | static |
| 1404 | char *escape(const char *s) |
| 1405 | { |
| 1406 | /* make a version of s in which control characters are deleted and |
| 1407 | * special characters are escaped. |
| 1408 | */ |
| 1409 | static char buf[200]; |
| 1410 | char *p = buf; |
| 1411 | |
| 1412 | for (;*s;s++) { |
| 1413 | if (*s < ' ' || *s > 0176) continue; |
| 1414 | if (*s==')' || *s=='(' || *s == '\\') { |
| 1415 | sprintf(p,"\\%03o",*s); |
| 1416 | p += 4; |
| 1417 | } |
| 1418 | else *p++ = *s; |
| 1419 | } |
| 1420 | *p = 0; |
| 1421 | return buf; |
| 1422 | } |
| 1423 | |
| 1424 | static |
| 1425 | void ps_setup( |
| 1426 | int iw, |
| 1427 | int ih, |
| 1428 | enum orientation orientation, |
| 1429 | int scale, |
| 1430 | int left, |
| 1431 | int top, |
| 1432 | int flags, |
| 1433 | const char *header, |
| 1434 | const char *trailer, |
| 1435 | const char *name) |
| 1436 | { |
| 1437 | char hostname[256]; |
| 1438 | #ifdef WIN32 |
| 1439 | char *username; |
| 1440 | #else |
| 1441 | struct passwd *pswd; |
| 1442 | #endif |
| 1443 | long clock; |
| 1444 | int lm, bm; /* left (bottom) margin */ |
| 1445 | |
| 1446 | /* calculate margins */ |
| 1447 | if (orientation==PORTRAIT) { |
| 1448 | lm = (left > 0)? left : ((PAPER_WIDTH85*30 - scale * iw) / 2); |
| 1449 | bm = (top > 0)? (PAPER_LENGTH11*300 - top - scale * ih) |
| 1450 | : ((PAPER_LENGTH11*300 - scale * ih) / 2); |
| 1451 | } else { /* orientation == LANDSCAPE */ |
| 1452 | lm = (top > 0)? (PAPER_WIDTH85*30 - top - scale * ih) |
| 1453 | : ((PAPER_WIDTH85*30 - scale * ih) / 2); |
| 1454 | bm = (left > 0)? (PAPER_LENGTH11*300 - left - scale * iw) |
| 1455 | : ((PAPER_LENGTH11*300 - scale * iw) / 2); |
| 1456 | } |
| 1457 | printf ("%%!%s\n", COMMENTVERSION"PS-Adobe-1.0"); |
| 1458 | printf ("%%%%BoundingBox: %d %d %d %d\n", |
| 1459 | (flags & F_NPOSITION1024) ? points(lm) : 0, |
| 1460 | (flags & F_NPOSITION1024) ? points(bm) : 0, |
| 1461 | points(iw * scale), points(ih * scale)); |
| 1462 | (void) XmuGetHostname (hostname, sizeof hostname); |
| 1463 | #ifdef WIN32 |
| 1464 | username = getenv("USERNAME"); |
| 1465 | printf ("%%%%Creator: %s:%s\n", hostname, |
| 1466 | username ? username : "unknown"); |
| 1467 | #else |
| 1468 | pswd = getpwuid (getuid ()); |
| 1469 | printf ("%%%%Creator: %s:%s (%s)\n", hostname, |
| 1470 | pswd->pw_name, pswd->pw_gecos); |
| 1471 | #endif |
| 1472 | printf ("%%%%Title: %s (%s)\n", infilename,name); |
| 1473 | printf ("%%%%CreationDate: %s", |
| 1474 | (time (&clock), ctime (&clock))); |
| 1475 | printf ("%%%%EndComments\n"); |
| 1476 | |
| 1477 | dump_prolog(flags); |
| 1478 | |
| 1479 | if (orientation==PORTRAIT) { |
| 1480 | if (header || trailer) { |
| 1481 | printf("gsave\n"); |
| 1482 | printf("/Times-Roman findfont 15 scalefont setfont\n"); |
| 1483 | /* origin at bottom left corner of image */ |
| 1484 | printf("%d %d translate\n",points(lm),points(bm)); |
| 1485 | if (header) { |
| 1486 | char *label = escape(header); |
| 1487 | printf("%d (%s) stringwidth pop sub 2 div %d moveto\n", |
| 1488 | points(iw*scale), label, points(ih*scale) + 10); |
| 1489 | printf("(%s) show\n",label); |
| 1490 | } |
| 1491 | if (trailer) { |
| 1492 | char *label = escape(trailer); |
| 1493 | printf("%d (%s) stringwidth pop sub 2 div -20 moveto\n", |
| 1494 | points(iw*scale), label); |
| 1495 | printf("(%s) show\n",label); |
| 1496 | } |
| 1497 | printf("grestore\n"); |
| 1498 | } |
| 1499 | /* set resolution to device units (300/inch) */ |
| 1500 | printf("72 300 div dup scale\n"); |
| 1501 | /* move to lower left corner of image */ |
| 1502 | if (!(flags & F_NPOSITION1024)) |
| 1503 | printf("%d %d translate\n",lm,bm); |
| 1504 | /* dump the bitmap */ |
| 1505 | printf("%d %d %d bitdump\n",iw,ih,scale); |
| 1506 | } else { /* orientation == LANDSCAPE */ |
| 1507 | if (header || trailer) { |
| 1508 | printf("gsave\n"); |
| 1509 | printf("/Times-Roman findfont 15 scalefont setfont\n"); |
| 1510 | /* origin at top left corner of image */ |
| 1511 | printf("%d %d translate\n",points(lm),points(bm + scale * iw)); |
| 1512 | /* rotate to print the titles */ |
| 1513 | printf("-90 rotate\n"); |
| 1514 | if (header) { |
| 1515 | char *label = escape(header); |
| 1516 | printf("%d (%s) stringwidth pop sub 2 div %d moveto\n", |
| 1517 | points(iw*scale), label, points(ih*scale) + 10); |
| 1518 | printf("(%s) show\n",label); |
| 1519 | } |
| 1520 | if (trailer) { |
| 1521 | char *label = escape(trailer); |
| 1522 | printf("%d (%s) stringwidth pop sub 2 div -20 moveto\n", |
| 1523 | points(iw*scale), label); |
| 1524 | printf("(%s) show\n",label); |
| 1525 | } |
| 1526 | printf("grestore\n"); |
| 1527 | } |
| 1528 | /* set resolution to device units (300/inch) */ |
| 1529 | printf("72 300 div dup scale\n"); |
| 1530 | /* move to lower left corner of image */ |
| 1531 | if (!(flags & F_NPOSITION1024)) |
| 1532 | printf("%d %d translate\n",lm,bm); |
| 1533 | /* dump the bitmap */ |
| 1534 | printf("%d %d %d bitdump\n",ih,iw,scale); |
| 1535 | } |
| 1536 | } |
| 1537 | |
| 1538 | static const |
| 1539 | char *ps_epilog[] = { |
| 1540 | "", |
| 1541 | "showpage", |
| 1542 | "%%Trailer", |
| 1543 | NULL((void*)0) |
| 1544 | }; |
| 1545 | |
| 1546 | static |
| 1547 | void ps_finish(void) |
| 1548 | { |
| 1549 | char **p = (char **)ps_epilog; |
| 1550 | |
| 1551 | while (*p) printf("%s\n",*p++); |
| 1552 | } |
| 1553 | |
| 1554 | static |
| 1555 | void ln03_output_sixels( |
| 1556 | unsigned char (*sixmap)[], |
| 1557 | int iw, |
| 1558 | int ih, |
| 1559 | int nosixopt, |
| 1560 | int split, |
| 1561 | int scale, |
| 1562 | int top_margin, |
| 1563 | int left_margin) |
| 1564 | { |
| 1565 | unsigned char *buf; |
| 1566 | register unsigned char *bp; |
| 1567 | int i; |
| 1568 | int j; |
| 1569 | register int k; |
| 1570 | register unsigned char *c; |
| 1571 | register int lastc; |
| 1572 | register int count; |
| 1573 | char snum[6]; |
| 1574 | register char *snp; |
| 1575 | |
| 1576 | bp = (unsigned char *)malloc((unsigned)(iw*ih+512)); |
| 1577 | buf = bp; |
| 1578 | count = 0; |
| 1579 | lastc = -1; |
| 1580 | c = (unsigned char *)sixmap; |
| 1581 | split = ih / split; /* number of lines per page */ |
| 1582 | |
| 1583 | iw--; /* optimization */ |
| 1584 | for (i = 0; i < ih; i++) { |
| 1585 | for (j = 0; j <= iw; j++) { |
| 1586 | if (!nosixopt) { |
| 1587 | if (*c == lastc && j < iw) { |
| 1588 | count++; |
| 1589 | c++; |
| 1590 | continue; |
| 1591 | } |
| 1592 | if (count >= 3) { |
| 1593 | bp--; |
| 1594 | count++; |
| 1595 | *bp++ = '!'; |
| 1596 | snp = snum; |
| 1597 | while (count > 0) { |
| 1598 | k = count / 10; |
| 1599 | *snp++ = count - (k * 10) + '0'; |
| 1600 | count = k; |
| 1601 | } |
| 1602 | while (--snp >= snum) *bp++ = *snp; |
| 1603 | *bp++ = (~lastc & 0x3F) + 0x3F; |
| 1604 | } else if (count > 0) { |
| 1605 | lastc = (~lastc & 0x3F) + 0x3F; |
| 1606 | do { |
| 1607 | *bp++ = lastc; |
| 1608 | } while (--count > 0); |
| 1609 | } |
| 1610 | } |
| 1611 | lastc = *c++; |
| 1612 | *bp++ = (~lastc & 0x3F) + 0x3F; |
| 1613 | } |
| 1614 | *bp++ = '-'; /* New line */ |
| 1615 | lastc = -1; |
| 1616 | if ((i % split) == 0 && i != 0) { |
| 1617 | sprintf((char *)bp, LN_ST"\033\\"); bp += sizeof LN_ST"\033\\" - 1; |
| 1618 | *bp++ = '\f'; |
| 1619 | sprintf((char *)bp, LN_VPA"\033[%dd", top_margin + (i * 6 * scale)); |
| 1620 | bp += strlen((char *)bp); |
| 1621 | sprintf((char *)bp, LN_HPA"\033[%d`", left_margin); |
| 1622 | bp += strlen((char *)bp); |
| 1623 | sprintf((char *)bp, LN_SIXEL_GRAPHICS"\033P%d;%d;%dq", 9, 0, scale); |
| 1624 | bp += strlen((char *)bp); |
| 1625 | sprintf((char *)bp, "\"1;1"); bp += 4; |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | sprintf((char *)bp, LN_ST"\033\\"); bp += sizeof LN_ST"\033\\" - 1; |
| 1630 | write(1, (char *)buf, bp-buf); |
| 1631 | } |
| 1632 | |
| 1633 | /*ARGSUSED*/ |
| 1634 | static |
| 1635 | void la100_output_sixels( |
| 1636 | unsigned char (*sixmap)[], |
| 1637 | int iw, |
| 1638 | int ih, |
| 1639 | int nosixopt) |
| 1640 | { |
| 1641 | unsigned char *buf; |
| 1642 | register unsigned char *bp; |
| 1643 | int i; |
| 1644 | register int j, k; |
| 1645 | register unsigned char *c; |
| 1646 | register int lastc; |
| 1647 | register int count; |
| 1648 | char snum[6]; |
| 1649 | |
| 1650 | bp = (unsigned char *)malloc((unsigned)(iw*ih+512)); |
| 1651 | buf = bp; |
| 1652 | count = 0; |
| 1653 | lastc = -1; |
| 1654 | c = (unsigned char *)sixmap; |
| 1655 | |
| 1656 | for (i = 0; i < ih; i++) { |
| 1657 | for (j = 0; j < iw; j++) { |
| 1658 | if (*c == lastc && (j+1) < iw) { |
| 1659 | count++; |
| 1660 | c++; |
| 1661 | continue; |
| 1662 | } |
| 1663 | if (count >= 2) { |
| 1664 | bp -= 2; |
| 1665 | count = 2 * (count + 1); |
| 1666 | *bp++ = '!'; |
| 1667 | k = 0; |
| 1668 | while (count > 0) { |
| 1669 | snum[k++] = (count % 10) + '0'; |
| 1670 | count /= 10; |
| 1671 | } |
| 1672 | while (--k >= 0) *bp++ = snum[k]; |
| 1673 | *bp++ = (~lastc & 0x3F) + 0x3F; |
| 1674 | count = 0; |
| 1675 | } else if (count > 0) { |
| 1676 | lastc = (~lastc & 0x3F) + 0x3F; |
| 1677 | do { |
| 1678 | *bp++ = lastc; |
| 1679 | *bp++ = lastc; |
| 1680 | } while (--count > 0); |
| 1681 | } |
| 1682 | lastc = (~*c & 0x3F) + 0x3F; |
| 1683 | *bp++ = lastc; |
| 1684 | *bp++ = lastc; |
| 1685 | lastc = *c++; |
| 1686 | } |
| 1687 | *bp++ = '-'; /* New line */ |
| 1688 | lastc = -1; |
| 1689 | } |
| 1690 | |
| 1691 | sprintf((char *)bp, LN_ST"\033\\"); bp += sizeof LN_ST"\033\\" - 1; |
| 1692 | *bp++ = '\f'; |
| 1693 | write(1, (char *)buf, bp-buf); |
| 1694 | } |
| 1695 | |
| 1696 | #define LINELEN72 72 /* number of CHARS (bytes*2) per line of bitmap output */ |
| 1697 | |
| 1698 | static |
| 1699 | void ps_output_bits( |
| 1700 | int iw, |
| 1701 | int ih, |
| 1702 | int flags, |
| 1703 | enum orientation orientation, |
| 1704 | XWDFileHeader *win, |
| 1705 | const char *data) |
| 1706 | { |
| 1707 | unsigned long swaptest = 1; |
| 1708 | int iwb = win->bytes_per_line; |
| 1709 | register int i; |
| 1710 | int bytes; |
| 1711 | unsigned char *buffer = (unsigned char *)data; |
| 1712 | register int ocount=0; |
| 1713 | static char hex[] = "0123456789abcdef"; |
| 1714 | |
| 1715 | if (orientation == LANDSCAPE) { |
| 1716 | /* read in and rotate the entire image */ |
| 1717 | /* The Postscript language has a rotate operator, but using it |
| 1718 | * seem to make printing (at least on the Apple Laserwriter |
| 1719 | * take about 10 times as long (40 minutes for a 1024x864 full-screen |
| 1720 | * dump)! Therefore, we rotate the image here. |
| 1721 | */ |
| 1722 | int ocol = ih; |
| 1723 | int owidth = (ih+31)/32; /* width of rotated image, in bytes */ |
| 1724 | int oheight = (iw+31)/32; /* height of rotated image, in scanlines */ |
| 1725 | register char *p, *q; |
| 1726 | char *obuf; |
| 1727 | unsigned char *ibuf; |
| 1728 | owidth *= 4; |
| 1729 | oheight *= 32; |
| 1730 | |
| 1731 | /* Allocate buffer for the entire rotated image (output). |
| 1732 | * Owidth and Oheight are rounded up to a multiple of 32 bits, |
| 1733 | * to avoid special cases at the boundaries |
| 1734 | */ |
| 1735 | obuf = malloc((unsigned)(owidth*oheight)); |
| 1736 | if (obuf==NULL((void*)0)) { |
| 1737 | fprintf(stderrstderr,"xpr: cannot allocate %d bytes\n",owidth*oheight); |
| 1738 | exit(1); |
| 1739 | } |
| 1740 | bzero(obuf,owidth*oheight)memset(obuf,0,owidth*oheight); |
| 1741 | |
| 1742 | ibuf = (unsigned char *)malloc((unsigned)(iwb + 3)); |
| 1743 | for (i=0;i<ih;i++) { |
| 1744 | memmove((char *)ibuf, (char *)buffer, iwb); |
| 1745 | buffer += iwb; |
| 1746 | if (!(*(char *) &swaptest)) |
| 1747 | _swaplong((char *)ibuf,(long)iwb); |
| 1748 | ps_bitrot(ibuf,iw,--ocol,owidth,obuf); |
| 1749 | } |
| 1750 | if (!(*(char *) &swaptest)) |
| 1751 | _swaplong(obuf,(long)(iw*owidth)); |
| 1752 | q = &obuf[iw*owidth]; |
| 1753 | bytes = (ih+7)/8; |
| 1754 | for (p=obuf;p<q;p+=owidth) |
| 1755 | ocount = ps_putbuf((unsigned char *)p,bytes,ocount,flags&F_COMPACT128); |
| 1756 | } |
| 1757 | else { |
| 1758 | for (i=0;i<ih;i++) { |
| 1759 | ocount = ps_putbuf(buffer,(iw+7)/8,ocount,flags&F_COMPACT128); |
| 1760 | buffer += iwb; |
| 1761 | } |
| 1762 | } |
| 1763 | if (flags & F_COMPACT128) { |
| 1764 | if (ocount) { |
| 1765 | /* pad to an integral number of lines */ |
| 1766 | while (ocount++ < LINELEN72) |
| 1767 | /* for debugging, pad with a "random" value */ |
| 1768 | putchar(hex[ocount&15]); |
| 1769 | putchar('\n'); |
| 1770 | } |
| 1771 | } |
| 1772 | } |
| 1773 | |
| 1774 | static const |
| 1775 | unsigned char _reverse_byte[0x100] = { |
| 1776 | 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, |
| 1777 | 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, |
| 1778 | 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, |
| 1779 | 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, |
| 1780 | 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, |
| 1781 | 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, |
| 1782 | 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, |
| 1783 | 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, |
| 1784 | 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, |
| 1785 | 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, |
| 1786 | 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, |
| 1787 | 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, |
| 1788 | 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, |
| 1789 | 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, |
| 1790 | 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, |
| 1791 | 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, |
| 1792 | 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, |
| 1793 | 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, |
| 1794 | 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, |
| 1795 | 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, |
| 1796 | 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, |
| 1797 | 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, |
| 1798 | 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, |
| 1799 | 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, |
| 1800 | 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, |
| 1801 | 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, |
| 1802 | 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, |
| 1803 | 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, |
| 1804 | 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, |
| 1805 | 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, |
| 1806 | 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, |
| 1807 | 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff |
| 1808 | }; |
| 1809 | |
| 1810 | void _invbits ( |
| 1811 | register unsigned char *b, |
| 1812 | register long n) |
| 1813 | { |
| 1814 | do { |
| 1815 | *b = ~*b; |
| 1816 | b++; |
| 1817 | } while (--n > 0); |
| 1818 | |
| 1819 | } |
| 1820 | |
| 1821 | /* copied from lib/X/XPutImage.c */ |
| 1822 | |
| 1823 | void _swapbits ( |
| 1824 | register unsigned char *b, |
| 1825 | register long n) |
| 1826 | { |
| 1827 | do { |
| 1828 | *b = _reverse_byte[*b]; |
| 1829 | b++; |
| 1830 | } while (--n > 0); |
| 1831 | |
| 1832 | } |
| 1833 | |
| 1834 | void _swapshort ( |
| 1835 | register char *bp, |
| 1836 | register long n) |
| 1837 | { |
| 1838 | register char c; |
| 1839 | register char *ep = bp + n; |
| 1840 | do { |
| 1841 | c = *bp; |
| 1842 | *bp = *(bp + 1); |
| 1843 | bp++; |
| 1844 | *bp = c; |
| 1845 | bp++; |
| 1846 | } |
| 1847 | while (bp < ep); |
| 1848 | } |
| 1849 | |
| 1850 | void _swaplong ( |
| 1851 | register char *bp, |
| 1852 | register long n) |
| 1853 | { |
| 1854 | register char c; |
| 1855 | register char *ep = bp + n; |
| 1856 | register char *sp; |
| 1857 | do { |
| 1858 | sp = bp + 3; |
| 1859 | c = *sp; |
| 1860 | *sp = *bp; |
| 1861 | *bp++ = c; |
| 1862 | sp = bp + 1; |
| 1863 | c = *sp; |
| 1864 | *sp = *bp; |
| 1865 | *bp++ = c; |
| 1866 | bp += 2; |
| 1867 | } |
| 1868 | while (bp < ep); |
| 1869 | } |
| 1870 | |
| 1871 | /* Dump some bytes in hex, with bits in each byte reversed |
| 1872 | * Ocount is number of chacters that have been written to the current |
| 1873 | * output line. It's new value is returned as the result of the function. |
| 1874 | * Ocount is ignored (and the return value is meaningless) if compact==0. |
| 1875 | */ |
| 1876 | static |
| 1877 | int ps_putbuf( |
| 1878 | register unsigned char *s, /* buffer to dump */ |
| 1879 | register int n, /* number of BITS to dump */ |
| 1880 | register int ocount, /* position on output line for next char */ |
| 1881 | int compact) /* if non-zero, do compaction (see below) */ |
| 1882 | { |
| 1883 | register int ffcount = 0; |
| 1884 | static char hex[] = "0123456789abcdef"; |
| 1885 | #define PUT(c){ putchar(c); if (++ocount>=72) { putchar('\n'); ocount=0; }} { putchar(c); if (++ocount>=LINELEN72) \ |
| 1886 | { putchar('\n'); ocount=0; }} |
| 1887 | |
| 1888 | if (compact) { |
| 1889 | /* The following loop puts out the bits of the image in hex, |
| 1890 | * compressing runs of white space (represented by one bits) |
| 1891 | * according the the following simple algorithm: A run of n |
| 1892 | * 'ff' bytes (i.e., bytes with value 255--all ones), where |
| 1893 | * 1<=n<=255, is represented by a single 'ff' byte followed by a |
| 1894 | * byte containing n. |
| 1895 | * On a typical dump of a full screen pretty much covered by |
| 1896 | * black-on-white text windows, this compression decreased the |
| 1897 | * size of the file from 223 Kbytes to 63 Kbytes. |
| 1898 | * Of course, another factor of two could be saved by sending |
| 1899 | * the bytes 'as is' rather than in hex, using some sort of |
| 1900 | * escape convention to avoid problems with control characters. |
| 1901 | * Another popular encoding is to pack three bytes into 4 'sixels' |
| 1902 | * as in the LN03, etc, but I'm too lazy to write the necessary |
| 1903 | * PostScript code to unpack fancier representations. |
| 1904 | */ |
| 1905 | while (n--) { |
| 1906 | if (*s == 0xff) { |
| 1907 | if (++ffcount == 255) { |
| 1908 | PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; |
| 1909 | PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; |
| 1910 | ffcount = 0; |
| 1911 | } |
| 1912 | } |
| 1913 | else { |
| 1914 | if (ffcount) { |
| 1915 | PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; |
| 1916 | PUT(hex[ffcount >> 4]){ putchar(hex[ffcount >> 4]); if (++ocount>=72) { putchar ('\n'); ocount=0; }}; |
| 1917 | PUT(hex[ffcount & 0xf]){ putchar(hex[ffcount & 0xf]); if (++ocount>=72) { putchar ('\n'); ocount=0; }}; |
| 1918 | ffcount = 0; |
| 1919 | } |
| 1920 | PUT(hex1[*s]){ putchar(hex1[*s]); if (++ocount>=72) { putchar('\n'); ocount =0; }}; |
| 1921 | PUT(hex2[*s]){ putchar(hex2[*s]); if (++ocount>=72) { putchar('\n'); ocount =0; }}; |
| 1922 | } |
| 1923 | s++; |
| 1924 | } |
| 1925 | if (ffcount) { |
| 1926 | PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; PUT('f'){ putchar('f'); if (++ocount>=72) { putchar('\n'); ocount= 0; }}; |
| 1927 | PUT(hex[ffcount >> 4]){ putchar(hex[ffcount >> 4]); if (++ocount>=72) { putchar ('\n'); ocount=0; }}; |
| 1928 | PUT(hex[ffcount & 0xf]){ putchar(hex[ffcount & 0xf]); if (++ocount>=72) { putchar ('\n'); ocount=0; }}; |
| 1929 | ffcount = 0; |
Value stored to 'ffcount' is never read | |
| 1930 | } |
| 1931 | } |
| 1932 | else { /* no compaction: just dump the image in hex (bits reversed) */ |
| 1933 | while (n--) { |
| 1934 | putchar(hex1[*s]); |
| 1935 | putchar(hex2[*s++]); |
| 1936 | } |
| 1937 | putchar('\n'); |
| 1938 | } |
| 1939 | return ocount; |
| 1940 | } |
| 1941 | |
| 1942 | static |
| 1943 | void ps_bitrot( |
| 1944 | unsigned char *s, |
| 1945 | register int n, |
| 1946 | int col, |
| 1947 | register int owidth, |
| 1948 | char *obuf) |
| 1949 | /* s points to a chunk of memory and n is its width in bits. |
| 1950 | * The algorithm is, roughly, |
| 1951 | * for (i=0;i<n;i++) { |
| 1952 | * OR the ith bit of s into the ith row of the |
| 1953 | * (col)th column of obuf |
| 1954 | * } |
| 1955 | * Assume VAX bit and byte ordering for s: |
| 1956 | * The ith bit of s is s[j]&(1<<k) where i=8*j+k. |
| 1957 | * It can also be retrieved as t[j]&(1<<k), where t=(int*)s and i=32*j+k. |
| 1958 | * Also assume VAX bit and byte ordering for each row of obuf. |
| 1959 | * Ps_putbuf() takes care of converting to Motorola 68000 byte and bit |
| 1960 | * ordering. The following code is very carefully tuned to yield a very |
| 1961 | * tight loop on the VAX, since it easily dominates the entire running |
| 1962 | * time of this program. In particular, iwordp is declared last, since |
| 1963 | * there aren't enough registers, and iwordp is referenced only once |
| 1964 | * every 32 times through the loop. |
| 1965 | */ |
| 1966 | { |
| 1967 | register int mask = 1<<(col%32); |
| 1968 | register int iword; /* current input word (*iwordp) */ |
| 1969 | register int b = 0; /* number of bits in iword left to examine */ |
| 1970 | register char *opos = obuf + (col/32)*4; |
| 1971 | /* pointer to word of obuf to receive next output bit */ |
| 1972 | register int *iwordp = (int *) s; /* pointer to next word of s */ |
| 1973 | |
| 1974 | while (--n>=0) { |
| 1975 | if (--b < 0) { |
| 1976 | iword = *iwordp++; |
| 1977 | b = 31; |
| 1978 | } |
| 1979 | if (iword & 1) { |
| 1980 | *(int *)opos |= mask; |
| 1981 | } |
| 1982 | opos += owidth; |
| 1983 | iword >>= 1; |
| 1984 | } |
| 1985 | } |
| 1986 | |
| 1987 | /* fullread() is the same as read(), except that it guarantees to |
| 1988 | read all the bytes requested. */ |
| 1989 | |
| 1990 | static |
| 1991 | void fullread ( |
| 1992 | int file, |
| 1993 | char *data, |
| 1994 | int nbytes) |
| 1995 | { |
| 1996 | int bytes_read; |
| 1997 | while ((bytes_read = read(file, data, nbytes)) != nbytes) { |
| 1998 | if (bytes_read < 0) { |
| 1999 | perror ("error while reading standard input"); |
| 2000 | return; |
| 2001 | } |
| 2002 | else if (bytes_read == 0) { |
| 2003 | fprintf (stderrstderr, "xpr: premature end of file\n"); |
| 2004 | return; |
| 2005 | } |
| 2006 | nbytes -= bytes_read; |
| 2007 | data += bytes_read; |
| 2008 | } |
| 2009 | } |