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Commit | Line | Data |
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ef416fc2 | 1 | /* |
f2d18633 | 2 | * "$Id$" |
ef416fc2 | 3 | * |
7e86f2f6 | 4 | * Raster file routines for CUPS. |
ef416fc2 | 5 | * |
62bd8d91 | 6 | * Copyright 2007-2015 by Apple Inc. |
7e86f2f6 | 7 | * Copyright 1997-2006 by Easy Software Products. |
ef416fc2 | 8 | * |
7e86f2f6 | 9 | * This file is part of the CUPS Imaging library. |
ef416fc2 | 10 | * |
7e86f2f6 MS |
11 | * These coded instructions, statements, and computer programs are the |
12 | * property of Apple Inc. and are protected by Federal copyright | |
13 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
14 | * which should have been included with this file. If this file is | |
15 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 16 | * |
7e86f2f6 | 17 | * This file is subject to the Apple OS-Developed Software exception. |
ef416fc2 | 18 | */ |
19 | ||
20 | /* | |
21 | * Include necessary headers... | |
22 | */ | |
23 | ||
a4845881 | 24 | #include <cups/raster-private.h> |
5a9febac MS |
25 | #ifdef HAVE_STDINT_H |
26 | # include <stdint.h> | |
27 | #endif /* HAVE_STDINT_H */ | |
ef416fc2 | 28 | |
29 | ||
f301802f | 30 | /* |
31 | * Private structures... | |
32 | */ | |
33 | ||
34 | struct _cups_raster_s /**** Raster stream data ****/ | |
35 | { | |
36 | unsigned sync; /* Sync word from start of stream */ | |
c8fef167 MS |
37 | void *ctx; /* File descriptor */ |
38 | cups_raster_iocb_t iocb; /* IO callback */ | |
f301802f | 39 | cups_mode_t mode; /* Read/write mode */ |
40 | cups_page_header2_t header; /* Raster header for current page */ | |
7e86f2f6 | 41 | unsigned count, /* Current row run-length count */ |
f301802f | 42 | remaining, /* Remaining rows in page image */ |
43 | bpp; /* Bytes per pixel/color */ | |
44 | unsigned char *pixels, /* Pixels for current row */ | |
45 | *pend, /* End of pixel buffer */ | |
46 | *pcurrent; /* Current byte in pixel buffer */ | |
ed486911 | 47 | int compressed, /* Non-zero if data is compressed */ |
48 | swapped; /* Non-zero if data is byte-swapped */ | |
49 | unsigned char *buffer, /* Read/write buffer */ | |
50 | *bufptr, /* Current (read) position in buffer */ | |
51 | *bufend; /* End of current (read) buffer */ | |
c8fef167 | 52 | size_t bufsize; /* Buffer size */ |
d9564ec7 MS |
53 | #ifdef DEBUG |
54 | size_t iocount; /* Number of bytes read/written */ | |
55 | #endif /* DEBUG */ | |
f301802f | 56 | }; |
57 | ||
ed486911 | 58 | |
ef416fc2 | 59 | /* |
60 | * Local functions... | |
61 | */ | |
62 | ||
7e86f2f6 | 63 | static ssize_t cups_raster_io(cups_raster_t *r, unsigned char *buf, size_t bytes); |
ef416fc2 | 64 | static unsigned cups_raster_read_header(cups_raster_t *r); |
7e86f2f6 MS |
65 | static ssize_t cups_raster_read(cups_raster_t *r, unsigned char *buf, |
66 | size_t bytes); | |
3c0659cd | 67 | static int cups_raster_update(cups_raster_t *r); |
7e86f2f6 | 68 | static ssize_t cups_raster_write(cups_raster_t *r, |
c8fef167 MS |
69 | const unsigned char *pixels); |
70 | static ssize_t cups_read_fd(void *ctx, unsigned char *buf, size_t bytes); | |
7e86f2f6 | 71 | static void cups_swap(unsigned char *buf, size_t bytes); |
c8fef167 | 72 | static ssize_t cups_write_fd(void *ctx, unsigned char *buf, size_t bytes); |
ef416fc2 | 73 | |
74 | ||
75 | /* | |
76 | * 'cupsRasterClose()' - Close a raster stream. | |
db0bd74a MS |
77 | * |
78 | * The file descriptor associated with the raster stream must be closed | |
79 | * separately as needed. | |
ef416fc2 | 80 | */ |
81 | ||
82 | void | |
83 | cupsRasterClose(cups_raster_t *r) /* I - Stream to close */ | |
84 | { | |
85 | if (r != NULL) | |
86 | { | |
ed486911 | 87 | if (r->buffer) |
88 | free(r->buffer); | |
89 | ||
ef416fc2 | 90 | if (r->pixels) |
91 | free(r->pixels); | |
92 | ||
93 | free(r); | |
94 | } | |
95 | } | |
96 | ||
97 | ||
98 | /* | |
c8fef167 | 99 | * 'cupsRasterOpen()' - Open a raster stream using a file descriptor. |
db0bd74a MS |
100 | * |
101 | * This function associates a raster stream with the given file descriptor. | |
102 | * For most printer driver filters, "fd" will be 0 (stdin). For most raster | |
103 | * image processor (RIP) filters that generate raster data, "fd" will be 1 | |
104 | * (stdout). | |
105 | * | |
c8fef167 MS |
106 | * When writing raster data, the @code CUPS_RASTER_WRITE@, |
107 | * @code CUPS_RASTER_WRITE_COMPRESS@, or @code CUPS_RASTER_WRITE_PWG@ mode can | |
108 | * be used - compressed and PWG output is generally 25-50% smaller but adds a | |
109 | * 100-300% execution time overhead. | |
ef416fc2 | 110 | */ |
111 | ||
112 | cups_raster_t * /* O - New stream */ | |
113 | cupsRasterOpen(int fd, /* I - File descriptor */ | |
c8fef167 MS |
114 | cups_mode_t mode) /* I - Mode - @code CUPS_RASTER_READ@, |
115 | @code CUPS_RASTER_WRITE@, | |
116 | @code CUPS_RASTER_WRITE_COMPRESSED@, | |
117 | or @code CUPS_RASTER_WRITE_PWG@ */ | |
118 | { | |
119 | if (mode == CUPS_RASTER_READ) | |
120 | return (cupsRasterOpenIO(cups_read_fd, (void *)((intptr_t)fd), mode)); | |
121 | else | |
122 | return (cupsRasterOpenIO(cups_write_fd, (void *)((intptr_t)fd), mode)); | |
123 | } | |
124 | ||
125 | ||
126 | /* | |
127 | * 'cupsRasterOpenIO()' - Open a raster stream using a callback function. | |
128 | * | |
129 | * This function associates a raster stream with the given callback function and | |
130 | * context pointer. | |
131 | * | |
132 | * When writing raster data, the @code CUPS_RASTER_WRITE@, | |
133 | * @code CUPS_RASTER_WRITE_COMPRESS@, or @code CUPS_RASTER_WRITE_PWG@ mode can | |
134 | * be used - compressed and PWG output is generally 25-50% smaller but adds a | |
135 | * 100-300% execution time overhead. | |
136 | */ | |
137 | ||
138 | cups_raster_t * /* O - New stream */ | |
139 | cupsRasterOpenIO( | |
140 | cups_raster_iocb_t iocb, /* I - Read/write callback */ | |
141 | void *ctx, /* I - Context pointer for callback */ | |
142 | cups_mode_t mode) /* I - Mode - @code CUPS_RASTER_READ@, | |
143 | @code CUPS_RASTER_WRITE@, | |
144 | @code CUPS_RASTER_WRITE_COMPRESSED@, | |
145 | or @code CUPS_RASTER_WRITE_PWG@ */ | |
ef416fc2 | 146 | { |
147 | cups_raster_t *r; /* New stream */ | |
148 | ||
149 | ||
f7deaa1a | 150 | _cupsRasterClearError(); |
151 | ||
ef416fc2 | 152 | if ((r = calloc(sizeof(cups_raster_t), 1)) == NULL) |
f7deaa1a | 153 | { |
154 | _cupsRasterAddError("Unable to allocate memory for raster stream: %s\n", | |
155 | strerror(errno)); | |
ef416fc2 | 156 | return (NULL); |
f7deaa1a | 157 | } |
ef416fc2 | 158 | |
c8fef167 MS |
159 | r->ctx = ctx; |
160 | r->iocb = iocb; | |
161 | r->mode = mode; | |
ef416fc2 | 162 | |
163 | if (mode == CUPS_RASTER_READ) | |
164 | { | |
165 | /* | |
166 | * Open for read - get sync word... | |
167 | */ | |
168 | ||
f14324a7 | 169 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) != |
c8fef167 | 170 | sizeof(r->sync)) |
ef416fc2 | 171 | { |
f7deaa1a | 172 | _cupsRasterAddError("Unable to read header from raster stream: %s\n", |
173 | strerror(errno)); | |
ef416fc2 | 174 | free(r); |
175 | return (NULL); | |
176 | } | |
177 | ||
178 | if (r->sync != CUPS_RASTER_SYNC && | |
179 | r->sync != CUPS_RASTER_REVSYNC && | |
180 | r->sync != CUPS_RASTER_SYNCv1 && | |
ed486911 | 181 | r->sync != CUPS_RASTER_REVSYNCv1 && |
182 | r->sync != CUPS_RASTER_SYNCv2 && | |
183 | r->sync != CUPS_RASTER_REVSYNCv2) | |
ef416fc2 | 184 | { |
f7deaa1a | 185 | _cupsRasterAddError("Unknown raster format %08x!\n", r->sync); |
ef416fc2 | 186 | free(r); |
187 | return (NULL); | |
188 | } | |
ed486911 | 189 | |
190 | if (r->sync == CUPS_RASTER_SYNCv2 || | |
191 | r->sync == CUPS_RASTER_REVSYNCv2) | |
192 | r->compressed = 1; | |
193 | ||
194 | if (r->sync == CUPS_RASTER_REVSYNC || | |
195 | r->sync == CUPS_RASTER_REVSYNCv1 || | |
196 | r->sync == CUPS_RASTER_REVSYNCv2) | |
197 | r->swapped = 1; | |
09a101d6 | 198 | |
d9564ec7 | 199 | DEBUG_printf(("1cupsRasterOpenIO: r->swapped=%d, r->sync=%08x\n", r->swapped, r->sync)); |
ef416fc2 | 200 | } |
201 | else | |
202 | { | |
203 | /* | |
204 | * Open for write - put sync word... | |
205 | */ | |
206 | ||
c8fef167 | 207 | switch (mode) |
f7deaa1a | 208 | { |
c8fef167 MS |
209 | default : |
210 | case CUPS_RASTER_WRITE : | |
211 | r->sync = CUPS_RASTER_SYNC; | |
212 | break; | |
213 | ||
214 | case CUPS_RASTER_WRITE_COMPRESSED : | |
215 | r->compressed = 1; | |
216 | r->sync = CUPS_RASTER_SYNCv2; | |
217 | break; | |
218 | ||
219 | case CUPS_RASTER_WRITE_PWG : | |
220 | r->compressed = 1; | |
221 | r->sync = htonl(CUPS_RASTER_SYNC_PWG); | |
222 | r->swapped = r->sync != CUPS_RASTER_SYNC_PWG; | |
223 | break; | |
f7deaa1a | 224 | } |
ed486911 | 225 | |
7e86f2f6 | 226 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) < (ssize_t)sizeof(r->sync)) |
ef416fc2 | 227 | { |
f7deaa1a | 228 | _cupsRasterAddError("Unable to write raster stream header: %s\n", |
229 | strerror(errno)); | |
ef416fc2 | 230 | free(r); |
231 | return (NULL); | |
232 | } | |
233 | } | |
234 | ||
235 | return (r); | |
236 | } | |
237 | ||
238 | ||
239 | /* | |
b423cd4c | 240 | * 'cupsRasterReadHeader()' - Read a raster page header and store it in a |
db0bd74a MS |
241 | * version 1 page header structure. |
242 | * | |
243 | * This function is deprecated. Use @link cupsRasterReadHeader2@ instead. | |
244 | * | |
79e1d494 MS |
245 | * Version 1 page headers were used in CUPS 1.0 and 1.1 and contain a subset |
246 | * of the version 2 page header data. This function handles reading version 2 | |
247 | * page headers and copying only the version 1 data into the provided buffer. | |
248 | * | |
db0bd74a | 249 | * @deprecated@ |
ef416fc2 | 250 | */ |
251 | ||
79e1d494 | 252 | unsigned /* O - 1 on success, 0 on failure/end-of-file */ |
ef416fc2 | 253 | cupsRasterReadHeader( |
254 | cups_raster_t *r, /* I - Raster stream */ | |
255 | cups_page_header_t *h) /* I - Pointer to header data */ | |
256 | { | |
257 | /* | |
258 | * Get the raster header... | |
259 | */ | |
260 | ||
261 | if (!cups_raster_read_header(r)) | |
62bd8d91 MS |
262 | { |
263 | memset(h, 0, sizeof(cups_page_header_t)); | |
ef416fc2 | 264 | return (0); |
62bd8d91 | 265 | } |
f14324a7 | 266 | |
ef416fc2 | 267 | /* |
268 | * Copy the header to the user-supplied buffer... | |
269 | */ | |
270 | ||
271 | memcpy(h, &(r->header), sizeof(cups_page_header_t)); | |
272 | ||
273 | return (1); | |
274 | } | |
275 | ||
276 | ||
277 | /* | |
b423cd4c | 278 | * 'cupsRasterReadHeader2()' - Read a raster page header and store it in a |
db0bd74a | 279 | * version 2 page header structure. |
ef416fc2 | 280 | * |
f3c17241 | 281 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 282 | */ |
283 | ||
79e1d494 | 284 | unsigned /* O - 1 on success, 0 on failure/end-of-file */ |
ef416fc2 | 285 | cupsRasterReadHeader2( |
286 | cups_raster_t *r, /* I - Raster stream */ | |
287 | cups_page_header2_t *h) /* I - Pointer to header data */ | |
288 | { | |
289 | /* | |
290 | * Get the raster header... | |
291 | */ | |
292 | ||
590e44a4 MS |
293 | DEBUG_printf(("cupsRasterReadHeader2(r=%p, h=%p)", r, h)); |
294 | ||
ef416fc2 | 295 | if (!cups_raster_read_header(r)) |
62bd8d91 MS |
296 | { |
297 | memset(h, 0, sizeof(cups_page_header2_t)); | |
ef416fc2 | 298 | return (0); |
62bd8d91 | 299 | } |
f14324a7 | 300 | |
ef416fc2 | 301 | /* |
302 | * Copy the header to the user-supplied buffer... | |
303 | */ | |
304 | ||
305 | memcpy(h, &(r->header), sizeof(cups_page_header2_t)); | |
306 | ||
307 | return (1); | |
308 | } | |
309 | ||
310 | ||
311 | /* | |
312 | * 'cupsRasterReadPixels()' - Read raster pixels. | |
79e1d494 MS |
313 | * |
314 | * For best performance, filters should read one or more whole lines. | |
315 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
316 | * the line buffer and as the number of bytes to read. | |
ef416fc2 | 317 | */ |
318 | ||
319 | unsigned /* O - Number of bytes read */ | |
320 | cupsRasterReadPixels(cups_raster_t *r, /* I - Raster stream */ | |
321 | unsigned char *p, /* I - Pointer to pixel buffer */ | |
322 | unsigned len) /* I - Number of bytes to read */ | |
323 | { | |
7e86f2f6 | 324 | ssize_t bytes; /* Bytes read */ |
ed486911 | 325 | unsigned cupsBytesPerLine; /* cupsBytesPerLine value */ |
ef416fc2 | 326 | unsigned remaining; /* Bytes remaining */ |
327 | unsigned char *ptr, /* Pointer to read buffer */ | |
ed486911 | 328 | byte, /* Byte from file */ |
329 | *temp; /* Pointer into buffer */ | |
7e86f2f6 | 330 | unsigned count; /* Repetition count */ |
ef416fc2 | 331 | |
332 | ||
590e44a4 MS |
333 | DEBUG_printf(("cupsRasterReadPixels(r=%p, p=%p, len=%u)", r, p, len)); |
334 | ||
a4845881 MS |
335 | if (r == NULL || r->mode != CUPS_RASTER_READ || r->remaining == 0 || |
336 | r->header.cupsBytesPerLine == 0) | |
590e44a4 MS |
337 | { |
338 | DEBUG_puts("1cupsRasterReadPixels: Returning 0."); | |
ef416fc2 | 339 | return (0); |
590e44a4 MS |
340 | } |
341 | ||
342 | DEBUG_printf(("1cupsRasterReadPixels: compressed=%d, remaining=%u", r->compressed, r->remaining)); | |
ef416fc2 | 343 | |
ed486911 | 344 | if (!r->compressed) |
345 | { | |
346 | /* | |
347 | * Read without compression... | |
348 | */ | |
349 | ||
350 | r->remaining -= len / r->header.cupsBytesPerLine; | |
351 | ||
f14324a7 | 352 | if (cups_raster_io(r, p, len) < (ssize_t)len) |
590e44a4 MS |
353 | { |
354 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 355 | return (0); |
590e44a4 | 356 | } |
ed486911 | 357 | |
358 | /* | |
359 | * Swap bytes as needed... | |
360 | */ | |
361 | ||
c8fef167 MS |
362 | if (r->swapped && |
363 | (r->header.cupsBitsPerColor == 16 || | |
ed486911 | 364 | r->header.cupsBitsPerPixel == 12 || |
c8fef167 | 365 | r->header.cupsBitsPerPixel == 16)) |
ed486911 | 366 | cups_swap(p, len); |
367 | ||
368 | /* | |
369 | * Return... | |
370 | */ | |
371 | ||
590e44a4 MS |
372 | DEBUG_printf(("1cupsRasterReadPixels: Returning %u", len)); |
373 | ||
ed486911 | 374 | return (len); |
375 | } | |
376 | ||
377 | /* | |
378 | * Read compressed data... | |
379 | */ | |
380 | ||
381 | remaining = len; | |
382 | cupsBytesPerLine = r->header.cupsBytesPerLine; | |
ef416fc2 | 383 | |
384 | while (remaining > 0 && r->remaining > 0) | |
385 | { | |
386 | if (r->count == 0) | |
387 | { | |
388 | /* | |
389 | * Need to read a new row... | |
390 | */ | |
391 | ||
ed486911 | 392 | if (remaining == cupsBytesPerLine) |
ef416fc2 | 393 | ptr = p; |
394 | else | |
395 | ptr = r->pixels; | |
396 | ||
ed486911 | 397 | /* |
c8fef167 | 398 | * Read using a modified PackBits compression... |
ed486911 | 399 | */ |
ef416fc2 | 400 | |
ed486911 | 401 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 MS |
402 | { |
403 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 404 | return (0); |
590e44a4 | 405 | } |
ef416fc2 | 406 | |
7d5824d6 | 407 | r->count = (unsigned)byte + 1; |
ed486911 | 408 | |
409 | if (r->count > 1) | |
410 | ptr = r->pixels; | |
411 | ||
412 | temp = ptr; | |
7e86f2f6 | 413 | bytes = (ssize_t)cupsBytesPerLine; |
ed486911 | 414 | |
415 | while (bytes > 0) | |
ef416fc2 | 416 | { |
417 | /* | |
ed486911 | 418 | * Get a new repeat count... |
ef416fc2 | 419 | */ |
420 | ||
ed486911 | 421 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 MS |
422 | { |
423 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ef416fc2 | 424 | return (0); |
590e44a4 | 425 | } |
ef416fc2 | 426 | |
ed486911 | 427 | if (byte & 128) |
ef416fc2 | 428 | { |
429 | /* | |
ed486911 | 430 | * Copy N literal pixels... |
ef416fc2 | 431 | */ |
432 | ||
7e86f2f6 | 433 | count = (unsigned)(257 - byte) * r->bpp; |
ef416fc2 | 434 | |
7e86f2f6 MS |
435 | if (count > (unsigned)bytes) |
436 | count = (unsigned)bytes; | |
ef416fc2 | 437 | |
ed486911 | 438 | if (!cups_raster_read(r, temp, count)) |
590e44a4 MS |
439 | { |
440 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 441 | return (0); |
590e44a4 | 442 | } |
ef416fc2 | 443 | |
ed486911 | 444 | temp += count; |
445 | bytes -= count; | |
446 | } | |
447 | else | |
448 | { | |
449 | /* | |
450 | * Repeat the next N bytes... | |
451 | */ | |
ef416fc2 | 452 | |
7d5824d6 | 453 | count = ((unsigned)byte + 1) * r->bpp; |
7e86f2f6 MS |
454 | if (count > (unsigned)bytes) |
455 | count = (unsigned)bytes; | |
ef416fc2 | 456 | |
ed486911 | 457 | if (count < r->bpp) |
458 | break; | |
ef416fc2 | 459 | |
ed486911 | 460 | bytes -= count; |
ef416fc2 | 461 | |
ed486911 | 462 | if (!cups_raster_read(r, temp, r->bpp)) |
590e44a4 MS |
463 | { |
464 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 465 | return (0); |
590e44a4 | 466 | } |
ef416fc2 | 467 | |
ed486911 | 468 | temp += r->bpp; |
469 | count -= r->bpp; | |
ef416fc2 | 470 | |
ed486911 | 471 | while (count > 0) |
472 | { | |
473 | memcpy(temp, temp - r->bpp, r->bpp); | |
ef416fc2 | 474 | temp += r->bpp; |
475 | count -= r->bpp; | |
ed486911 | 476 | } |
ef416fc2 | 477 | } |
478 | } | |
479 | ||
ed486911 | 480 | /* |
481 | * Swap bytes as needed... | |
482 | */ | |
483 | ||
f301802f | 484 | if ((r->header.cupsBitsPerColor == 16 || |
485 | r->header.cupsBitsPerPixel == 12 || | |
486 | r->header.cupsBitsPerPixel == 16) && | |
ed486911 | 487 | r->swapped) |
7e86f2f6 | 488 | cups_swap(ptr, (size_t)bytes); |
ef416fc2 | 489 | |
ed486911 | 490 | /* |
491 | * Update pointers... | |
492 | */ | |
ef416fc2 | 493 | |
ed486911 | 494 | if (remaining >= cupsBytesPerLine) |
ef416fc2 | 495 | { |
7e86f2f6 | 496 | bytes = (ssize_t)cupsBytesPerLine; |
ef416fc2 | 497 | r->pcurrent = r->pixels; |
498 | r->count --; | |
499 | r->remaining --; | |
500 | } | |
501 | else | |
502 | { | |
7e86f2f6 | 503 | bytes = (ssize_t)remaining; |
ef416fc2 | 504 | r->pcurrent = r->pixels + bytes; |
505 | } | |
506 | ||
ed486911 | 507 | /* |
508 | * Copy data as needed... | |
509 | */ | |
510 | ||
ef416fc2 | 511 | if (ptr != p) |
07623986 | 512 | memcpy(p, ptr, (size_t)bytes); |
ef416fc2 | 513 | } |
514 | else | |
515 | { | |
516 | /* | |
517 | * Copy fragment from buffer... | |
518 | */ | |
519 | ||
a2326b5b | 520 | if ((unsigned)(bytes = (int)(r->pend - r->pcurrent)) > remaining) |
7e86f2f6 | 521 | bytes = (ssize_t)remaining; |
ef416fc2 | 522 | |
07623986 | 523 | memcpy(p, r->pcurrent, (size_t)bytes); |
ef416fc2 | 524 | r->pcurrent += bytes; |
525 | ||
526 | if (r->pcurrent >= r->pend) | |
527 | { | |
528 | r->pcurrent = r->pixels; | |
529 | r->count --; | |
530 | r->remaining --; | |
531 | } | |
532 | } | |
533 | ||
7e86f2f6 | 534 | remaining -= (unsigned)bytes; |
ef416fc2 | 535 | p += bytes; |
536 | } | |
537 | ||
590e44a4 MS |
538 | DEBUG_printf(("1cupsRasterReadPixels: Returning %u", len)); |
539 | ||
ef416fc2 | 540 | return (len); |
541 | } | |
542 | ||
543 | ||
544 | /* | |
db0bd74a | 545 | * 'cupsRasterWriteHeader()' - Write a raster page header from a version 1 page |
b423cd4c | 546 | * header structure. |
db0bd74a MS |
547 | * |
548 | * This function is deprecated. Use @link cupsRasterWriteHeader2@ instead. | |
549 | * | |
550 | * @deprecated@ | |
ef416fc2 | 551 | */ |
f14324a7 | 552 | |
ef416fc2 | 553 | unsigned /* O - 1 on success, 0 on failure */ |
554 | cupsRasterWriteHeader( | |
555 | cups_raster_t *r, /* I - Raster stream */ | |
556 | cups_page_header_t *h) /* I - Raster page header */ | |
557 | { | |
c8fef167 | 558 | if (r == NULL || r->mode == CUPS_RASTER_READ) |
ef416fc2 | 559 | return (0); |
560 | ||
561 | /* | |
562 | * Make a copy of the header, and compute the number of raster | |
563 | * lines in the page image... | |
564 | */ | |
565 | ||
566 | memset(&(r->header), 0, sizeof(r->header)); | |
567 | memcpy(&(r->header), h, sizeof(cups_page_header_t)); | |
568 | ||
3c0659cd MS |
569 | if (!cups_raster_update(r)) |
570 | return (0); | |
ef416fc2 | 571 | |
572 | /* | |
573 | * Write the raster header... | |
574 | */ | |
575 | ||
c8fef167 MS |
576 | if (r->mode == CUPS_RASTER_WRITE_PWG) |
577 | { | |
578 | /* | |
10ddcf65 | 579 | * PWG raster data is always network byte order with much of the page header |
c8fef167 MS |
580 | * zeroed. |
581 | */ | |
582 | ||
583 | cups_page_header2_t fh; /* File page header */ | |
584 | ||
585 | memset(&fh, 0, sizeof(fh)); | |
10ddcf65 MS |
586 | |
587 | strlcpy(fh.MediaClass, "PwgRaster", sizeof(fh.MediaClass)); | |
588 | /* PwgRaster */ | |
589 | strlcpy(fh.MediaColor, r->header.MediaColor, sizeof(fh.MediaColor)); | |
590 | strlcpy(fh.MediaType, r->header.MediaType, sizeof(fh.MediaType)); | |
591 | strlcpy(fh.OutputType, r->header.OutputType, sizeof(fh.OutputType)); | |
592 | /* PrintContentType */ | |
593 | ||
594 | fh.CutMedia = htonl(r->header.CutMedia); | |
595 | fh.Duplex = htonl(r->header.Duplex); | |
596 | fh.HWResolution[0] = htonl(r->header.HWResolution[0]); | |
597 | fh.HWResolution[1] = htonl(r->header.HWResolution[1]); | |
598 | fh.ImagingBoundingBox[0] = htonl(r->header.ImagingBoundingBox[0]); | |
599 | fh.ImagingBoundingBox[1] = htonl(r->header.ImagingBoundingBox[1]); | |
600 | fh.ImagingBoundingBox[2] = htonl(r->header.ImagingBoundingBox[2]); | |
601 | fh.ImagingBoundingBox[3] = htonl(r->header.ImagingBoundingBox[3]); | |
602 | fh.InsertSheet = htonl(r->header.InsertSheet); | |
603 | fh.Jog = htonl(r->header.Jog); | |
604 | fh.LeadingEdge = htonl(r->header.LeadingEdge); | |
605 | fh.ManualFeed = htonl(r->header.ManualFeed); | |
606 | fh.MediaPosition = htonl(r->header.MediaPosition); | |
607 | fh.MediaWeight = htonl(r->header.MediaWeight); | |
608 | fh.NumCopies = htonl(r->header.NumCopies); | |
609 | fh.Orientation = htonl(r->header.Orientation); | |
610 | fh.PageSize[0] = htonl(r->header.PageSize[0]); | |
611 | fh.PageSize[1] = htonl(r->header.PageSize[1]); | |
612 | fh.Tumble = htonl(r->header.Tumble); | |
613 | fh.cupsWidth = htonl(r->header.cupsWidth); | |
614 | fh.cupsHeight = htonl(r->header.cupsHeight); | |
615 | fh.cupsBitsPerColor = htonl(r->header.cupsBitsPerColor); | |
616 | fh.cupsBitsPerPixel = htonl(r->header.cupsBitsPerPixel); | |
617 | fh.cupsBytesPerLine = htonl(r->header.cupsBytesPerLine); | |
618 | fh.cupsColorOrder = htonl(r->header.cupsColorOrder); | |
619 | fh.cupsColorSpace = htonl(r->header.cupsColorSpace); | |
620 | fh.cupsNumColors = htonl(r->header.cupsNumColors); | |
621 | fh.cupsInteger[0] = htonl(r->header.cupsInteger[0]); | |
622 | /* TotalPageCount */ | |
623 | fh.cupsInteger[1] = htonl(r->header.cupsInteger[1]); | |
624 | /* CrossFeedTransform */ | |
625 | fh.cupsInteger[2] = htonl(r->header.cupsInteger[2]); | |
626 | /* FeedTransform */ | |
627 | fh.cupsInteger[3] = htonl(r->header.cupsInteger[3]); | |
628 | /* ImageBoxLeft */ | |
629 | fh.cupsInteger[4] = htonl(r->header.cupsInteger[4]); | |
630 | /* ImageBoxTop */ | |
631 | fh.cupsInteger[5] = htonl(r->header.cupsInteger[5]); | |
632 | /* ImageBoxRight */ | |
633 | fh.cupsInteger[6] = htonl(r->header.cupsInteger[6]); | |
634 | /* ImageBoxBottom */ | |
635 | fh.cupsInteger[7] = htonl(r->header.cupsInteger[7]); | |
636 | /* BlackPrimary */ | |
637 | fh.cupsInteger[8] = htonl(r->header.cupsInteger[8]); | |
638 | /* PrintQuality */ | |
639 | fh.cupsInteger[14] = htonl(r->header.cupsInteger[14]); | |
640 | /* VendorIdentifier */ | |
641 | fh.cupsInteger[15] = htonl(r->header.cupsInteger[15]); | |
642 | /* VendorLength */ | |
643 | ||
cf1d7281 MS |
644 | void *dst = fh.cupsReal; /* Bypass bogus compiler warning */ |
645 | void *src = r->header.cupsReal; | |
646 | memcpy(dst, src, sizeof(fh.cupsReal) + sizeof(fh.cupsString)); | |
10ddcf65 MS |
647 | /* VendorData */ |
648 | ||
649 | strlcpy(fh.cupsRenderingIntent, r->header.cupsRenderingIntent, | |
650 | sizeof(fh.cupsRenderingIntent)); | |
651 | strlcpy(fh.cupsPageSizeName, r->header.cupsPageSizeName, | |
652 | sizeof(fh.cupsPageSizeName)); | |
c8fef167 | 653 | |
f14324a7 | 654 | return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh)); |
c8fef167 MS |
655 | } |
656 | else | |
f14324a7 | 657 | return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header)) |
c8fef167 | 658 | == sizeof(r->header)); |
ef416fc2 | 659 | } |
660 | ||
661 | ||
662 | /* | |
db0bd74a MS |
663 | * 'cupsRasterWriteHeader2()' - Write a raster page header from a version 2 |
664 | * page header structure. | |
665 | * | |
666 | * The page header can be initialized using @link cupsRasterInterpretPPD@. | |
ef416fc2 | 667 | * |
f3c17241 | 668 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 669 | */ |
f14324a7 | 670 | |
ef416fc2 | 671 | unsigned /* O - 1 on success, 0 on failure */ |
672 | cupsRasterWriteHeader2( | |
673 | cups_raster_t *r, /* I - Raster stream */ | |
674 | cups_page_header2_t *h) /* I - Raster page header */ | |
675 | { | |
c8fef167 | 676 | if (r == NULL || r->mode == CUPS_RASTER_READ) |
ef416fc2 | 677 | return (0); |
678 | ||
679 | /* | |
680 | * Make a copy of the header, and compute the number of raster | |
681 | * lines in the page image... | |
682 | */ | |
683 | ||
684 | memcpy(&(r->header), h, sizeof(cups_page_header2_t)); | |
685 | ||
3c0659cd MS |
686 | if (!cups_raster_update(r)) |
687 | return (0); | |
ef416fc2 | 688 | |
689 | /* | |
690 | * Write the raster header... | |
691 | */ | |
692 | ||
c8fef167 MS |
693 | if (r->mode == CUPS_RASTER_WRITE_PWG) |
694 | { | |
695 | /* | |
696 | * PWG raster data is always network byte order with most of the page header | |
697 | * zeroed. | |
698 | */ | |
699 | ||
700 | cups_page_header2_t fh; /* File page header */ | |
701 | ||
702 | memset(&fh, 0, sizeof(fh)); | |
771bd8cb MS |
703 | strlcpy(fh.MediaClass, "PwgRaster", sizeof(fh.MediaClass)); |
704 | strlcpy(fh.MediaColor, r->header.MediaColor, sizeof(fh.MediaColor)); | |
705 | strlcpy(fh.MediaType, r->header.MediaType, sizeof(fh.MediaType)); | |
706 | strlcpy(fh.OutputType, r->header.OutputType, sizeof(fh.OutputType)); | |
707 | strlcpy(fh.cupsRenderingIntent, r->header.cupsRenderingIntent, | |
708 | sizeof(fh.cupsRenderingIntent)); | |
709 | strlcpy(fh.cupsPageSizeName, r->header.cupsPageSizeName, | |
710 | sizeof(fh.cupsPageSizeName)); | |
711 | ||
712 | fh.CutMedia = htonl(r->header.CutMedia); | |
713 | fh.Duplex = htonl(r->header.Duplex); | |
714 | fh.HWResolution[0] = htonl(r->header.HWResolution[0]); | |
715 | fh.HWResolution[1] = htonl(r->header.HWResolution[1]); | |
716 | fh.ImagingBoundingBox[0] = htonl(r->header.ImagingBoundingBox[0]); | |
717 | fh.ImagingBoundingBox[1] = htonl(r->header.ImagingBoundingBox[1]); | |
718 | fh.ImagingBoundingBox[2] = htonl(r->header.ImagingBoundingBox[2]); | |
719 | fh.ImagingBoundingBox[3] = htonl(r->header.ImagingBoundingBox[3]); | |
720 | fh.InsertSheet = htonl(r->header.InsertSheet); | |
721 | fh.Jog = htonl(r->header.Jog); | |
722 | fh.LeadingEdge = htonl(r->header.LeadingEdge); | |
723 | fh.ManualFeed = htonl(r->header.ManualFeed); | |
724 | fh.MediaPosition = htonl(r->header.MediaPosition); | |
725 | fh.MediaWeight = htonl(r->header.MediaWeight); | |
726 | fh.NumCopies = htonl(r->header.NumCopies); | |
727 | fh.Orientation = htonl(r->header.Orientation); | |
728 | fh.PageSize[0] = htonl(r->header.PageSize[0]); | |
729 | fh.PageSize[1] = htonl(r->header.PageSize[1]); | |
730 | fh.Tumble = htonl(r->header.Tumble); | |
731 | fh.cupsWidth = htonl(r->header.cupsWidth); | |
732 | fh.cupsHeight = htonl(r->header.cupsHeight); | |
733 | fh.cupsBitsPerColor = htonl(r->header.cupsBitsPerColor); | |
734 | fh.cupsBitsPerPixel = htonl(r->header.cupsBitsPerPixel); | |
735 | fh.cupsBytesPerLine = htonl(r->header.cupsBytesPerLine); | |
736 | fh.cupsColorOrder = htonl(r->header.cupsColorOrder); | |
737 | fh.cupsColorSpace = htonl(r->header.cupsColorSpace); | |
738 | fh.cupsNumColors = htonl(r->header.cupsNumColors); | |
739 | fh.cupsInteger[0] = htonl(r->header.cupsInteger[0]); | |
740 | fh.cupsInteger[1] = htonl(r->header.cupsInteger[1]); | |
741 | fh.cupsInteger[2] = htonl(r->header.cupsInteger[2]); | |
89665c51 MS |
742 | fh.cupsInteger[3] = htonl((unsigned)(r->header.cupsImagingBBox[0] * r->header.HWResolution[0] / 72.0)); |
743 | fh.cupsInteger[4] = htonl((unsigned)(r->header.cupsImagingBBox[1] * r->header.HWResolution[1] / 72.0)); | |
744 | fh.cupsInteger[5] = htonl((unsigned)(r->header.cupsImagingBBox[2] * r->header.HWResolution[0] / 72.0)); | |
745 | fh.cupsInteger[6] = htonl((unsigned)(r->header.cupsImagingBBox[3] * r->header.HWResolution[1] / 72.0)); | |
771bd8cb | 746 | fh.cupsInteger[7] = htonl(0xffffff); |
c8fef167 | 747 | |
f14324a7 | 748 | return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh)); |
c8fef167 MS |
749 | } |
750 | else | |
f14324a7 | 751 | return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header)) |
c8fef167 | 752 | == sizeof(r->header)); |
ef416fc2 | 753 | } |
754 | ||
755 | ||
756 | /* | |
757 | * 'cupsRasterWritePixels()' - Write raster pixels. | |
79e1d494 MS |
758 | * |
759 | * For best performance, filters should write one or more whole lines. | |
760 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
761 | * the line buffer and as the number of bytes to write. | |
ef416fc2 | 762 | */ |
763 | ||
764 | unsigned /* O - Number of bytes written */ | |
765 | cupsRasterWritePixels(cups_raster_t *r, /* I - Raster stream */ | |
766 | unsigned char *p, /* I - Bytes to write */ | |
767 | unsigned len)/* I - Number of bytes to write */ | |
768 | { | |
7e86f2f6 | 769 | ssize_t bytes; /* Bytes read */ |
f7deaa1a | 770 | unsigned remaining; /* Bytes remaining */ |
771 | ||
772 | ||
09a101d6 | 773 | DEBUG_printf(("cupsRasterWritePixels(r=%p, p=%p, len=%u), remaining=%u\n", |
774 | r, p, len, r->remaining)); | |
f301802f | 775 | |
c8fef167 | 776 | if (r == NULL || r->mode == CUPS_RASTER_READ || r->remaining == 0) |
ef416fc2 | 777 | return (0); |
778 | ||
f7deaa1a | 779 | if (!r->compressed) |
780 | { | |
781 | /* | |
c8fef167 MS |
782 | * Without compression, just write the raster data raw unless the data needs |
783 | * to be swapped... | |
f7deaa1a | 784 | */ |
785 | ||
786 | r->remaining -= len / r->header.cupsBytesPerLine; | |
787 | ||
c8fef167 MS |
788 | if (r->swapped && |
789 | (r->header.cupsBitsPerColor == 16 || | |
790 | r->header.cupsBitsPerPixel == 12 || | |
791 | r->header.cupsBitsPerPixel == 16)) | |
792 | { | |
793 | unsigned char *bufptr; /* Pointer into write buffer */ | |
794 | unsigned count; /* Remaining count */ | |
795 | ||
796 | /* | |
797 | * Allocate a write buffer as needed... | |
798 | */ | |
799 | ||
800 | if ((size_t)len > r->bufsize) | |
801 | { | |
802 | if (r->buffer) | |
803 | bufptr = realloc(r->buffer, len); | |
804 | else | |
805 | bufptr = malloc(len); | |
806 | ||
807 | if (!bufptr) | |
808 | return (0); | |
809 | ||
810 | r->buffer = bufptr; | |
811 | r->bufsize = len; | |
812 | } | |
813 | ||
814 | /* | |
815 | * Byte swap the pixels... | |
816 | */ | |
817 | ||
818 | for (bufptr = r->buffer, count = len; count > 1; count -= 2, bufptr += 2) | |
819 | { | |
820 | bufptr[1] = *p++; | |
821 | bufptr[0] = *p++; | |
822 | } | |
823 | ||
824 | if (count) /* This should never happen... */ | |
825 | *bufptr = *p; | |
826 | ||
827 | /* | |
828 | * Write the byte-swapped buffer... | |
829 | */ | |
830 | ||
a5425f93 | 831 | bytes = cups_raster_io(r, r->buffer, len); |
c8fef167 MS |
832 | } |
833 | else | |
a5425f93 MS |
834 | bytes = cups_raster_io(r, p, len); |
835 | ||
836 | if (bytes < len) | |
837 | return (0); | |
838 | else | |
839 | return (len); | |
f7deaa1a | 840 | } |
841 | ||
ed486911 | 842 | /* |
f7deaa1a | 843 | * Otherwise, compress each line... |
ed486911 | 844 | */ |
ef416fc2 | 845 | |
7e86f2f6 | 846 | for (remaining = len; remaining > 0; remaining -= (unsigned)bytes, p += bytes) |
f7deaa1a | 847 | { |
848 | /* | |
849 | * Figure out the number of remaining bytes on the current line... | |
850 | */ | |
851 | ||
7e86f2f6 MS |
852 | if ((bytes = (ssize_t)remaining) > (ssize_t)(r->pend - r->pcurrent)) |
853 | bytes = (ssize_t)(r->pend - r->pcurrent); | |
f7deaa1a | 854 | |
855 | if (r->count > 0) | |
856 | { | |
857 | /* | |
858 | * Check to see if this line is the same as the previous line... | |
859 | */ | |
860 | ||
7e86f2f6 | 861 | if (memcmp(p, r->pcurrent, (size_t)bytes)) |
f7deaa1a | 862 | { |
a5425f93 | 863 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 864 | return (0); |
865 | ||
866 | r->count = 0; | |
867 | } | |
868 | else | |
869 | { | |
870 | /* | |
871 | * Mark more bytes as the same... | |
872 | */ | |
873 | ||
874 | r->pcurrent += bytes; | |
875 | ||
876 | if (r->pcurrent >= r->pend) | |
877 | { | |
878 | /* | |
879 | * Increase the repeat count... | |
880 | */ | |
881 | ||
882 | r->count ++; | |
883 | r->pcurrent = r->pixels; | |
884 | ||
885 | /* | |
886 | * Flush out this line if it is the last one... | |
887 | */ | |
888 | ||
889 | r->remaining --; | |
890 | ||
891 | if (r->remaining == 0) | |
a5425f93 MS |
892 | { |
893 | if (cups_raster_write(r, r->pixels) <= 0) | |
894 | return (0); | |
895 | else | |
896 | return (len); | |
897 | } | |
f7deaa1a | 898 | else if (r->count == 256) |
899 | { | |
a5425f93 | 900 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 901 | return (0); |
f301802f | 902 | |
f7deaa1a | 903 | r->count = 0; |
904 | } | |
905 | } | |
906 | ||
907 | continue; | |
908 | } | |
909 | } | |
910 | ||
911 | if (r->count == 0) | |
912 | { | |
913 | /* | |
914 | * Copy the raster data to the buffer... | |
915 | */ | |
916 | ||
07623986 | 917 | memcpy(r->pcurrent, p, (size_t)bytes); |
f7deaa1a | 918 | |
919 | r->pcurrent += bytes; | |
920 | ||
921 | if (r->pcurrent >= r->pend) | |
922 | { | |
923 | /* | |
924 | * Increase the repeat count... | |
925 | */ | |
926 | ||
927 | r->count ++; | |
928 | r->pcurrent = r->pixels; | |
929 | ||
930 | /* | |
931 | * Flush out this line if it is the last one... | |
932 | */ | |
933 | ||
934 | r->remaining --; | |
935 | ||
936 | if (r->remaining == 0) | |
a5425f93 MS |
937 | { |
938 | if (cups_raster_write(r, r->pixels) <= 0) | |
939 | return (0); | |
940 | } | |
f7deaa1a | 941 | } |
942 | } | |
943 | } | |
944 | ||
945 | return (len); | |
ef416fc2 | 946 | } |
947 | ||
948 | ||
949 | /* | |
950 | * 'cups_raster_read_header()' - Read a raster page header. | |
951 | */ | |
952 | ||
953 | static unsigned /* O - 1 on success, 0 on fail */ | |
954 | cups_raster_read_header( | |
955 | cups_raster_t *r) /* I - Raster stream */ | |
956 | { | |
7e86f2f6 | 957 | size_t len; /* Length for read/swap */ |
ef416fc2 | 958 | |
959 | ||
590e44a4 MS |
960 | DEBUG_printf(("3cups_raster_read_header(r=%p), r->mode=%d", r, r ? r->mode : 0)); |
961 | ||
ef416fc2 | 962 | if (r == NULL || r->mode != CUPS_RASTER_READ) |
963 | return (0); | |
964 | ||
d9564ec7 MS |
965 | DEBUG_printf(("4cups_raster_read_header: r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); |
966 | ||
ef416fc2 | 967 | /* |
968 | * Get the length of the raster header... | |
969 | */ | |
970 | ||
971 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1) | |
972 | len = sizeof(cups_page_header_t); | |
973 | else | |
974 | len = sizeof(cups_page_header2_t); | |
975 | ||
590e44a4 MS |
976 | DEBUG_printf(("4cups_raster_read_header: len=%d", (int)len)); |
977 | ||
ef416fc2 | 978 | /* |
979 | * Read the header... | |
980 | */ | |
981 | ||
982 | memset(&(r->header), 0, sizeof(r->header)); | |
983 | ||
7e86f2f6 | 984 | if (cups_raster_read(r, (unsigned char *)&(r->header), len) < (ssize_t)len) |
590e44a4 | 985 | { |
d9564ec7 | 986 | DEBUG_printf(("4cups_raster_read_header: EOF, r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); |
ef416fc2 | 987 | return (0); |
590e44a4 | 988 | } |
ef416fc2 | 989 | |
990 | /* | |
991 | * Swap bytes as needed... | |
992 | */ | |
993 | ||
ed486911 | 994 | if (r->swapped) |
09a101d6 | 995 | { |
996 | unsigned *s, /* Current word */ | |
997 | temp; /* Temporary copy */ | |
998 | ||
999 | ||
590e44a4 | 1000 | DEBUG_puts("4cups_raster_read_header: Swapping header bytes."); |
09a101d6 | 1001 | |
1002 | for (len = 81, s = &(r->header.AdvanceDistance); | |
ef416fc2 | 1003 | len > 0; |
1004 | len --, s ++) | |
09a101d6 | 1005 | { |
09a101d6 | 1006 | temp = *s; |
1007 | *s = ((temp & 0xff) << 24) | | |
1008 | ((temp & 0xff00) << 8) | | |
1009 | ((temp & 0xff0000) >> 8) | | |
1010 | ((temp & 0xff000000) >> 24); | |
1011 | ||
590e44a4 | 1012 | DEBUG_printf(("4cups_raster_read_header: %08x => %08x", temp, *s)); |
09a101d6 | 1013 | } |
1014 | } | |
ef416fc2 | 1015 | |
1016 | /* | |
1017 | * Update the header and row count... | |
1018 | */ | |
1019 | ||
3c0659cd MS |
1020 | if (!cups_raster_update(r)) |
1021 | return (0); | |
ef416fc2 | 1022 | |
590e44a4 MS |
1023 | DEBUG_printf(("4cups_raster_read_header: cupsBitsPerPixel=%u, cupsBitsPerColor=%u, cupsBytesPerLine=%u, cupsWidth=%u, cupsHeight=%u, r->bpp=%d", r->header.cupsBitsPerPixel, r->header.cupsBitsPerColor, r->header.cupsBytesPerLine, r->header.cupsWidth, r->header.cupsHeight, r->bpp)); |
1024 | ||
3c0659cd | 1025 | return (r->header.cupsBitsPerPixel > 0 && r->header.cupsBitsPerPixel <= 240 && r->header.cupsBitsPerColor > 0 && r->header.cupsBitsPerColor <= 16 && r->header.cupsBytesPerLine != 0 && r->header.cupsHeight != 0 && (r->header.cupsBytesPerLine % r->bpp) == 0); |
ef416fc2 | 1026 | } |
1027 | ||
1028 | ||
f14324a7 MS |
1029 | /* |
1030 | * 'cups_raster_io()' - Read/write bytes from a context, handling interruptions. | |
1031 | */ | |
1032 | ||
7e86f2f6 | 1033 | static ssize_t /* O - Bytes read/write or -1 */ |
83e08001 | 1034 | cups_raster_io(cups_raster_t *r, /* I - Raster stream */ |
7e86f2f6 MS |
1035 | unsigned char *buf, /* I - Buffer for read/write */ |
1036 | size_t bytes) /* I - Number of bytes to read/write */ | |
f14324a7 | 1037 | { |
7e86f2f6 MS |
1038 | ssize_t count, /* Number of bytes read/written */ |
1039 | total; /* Total bytes read/written */ | |
f14324a7 MS |
1040 | |
1041 | ||
590e44a4 | 1042 | DEBUG_printf(("5cups_raster_io(r=%p, buf=%p, bytes=" CUPS_LLFMT ")", r, buf, CUPS_LLCAST bytes)); |
f14324a7 | 1043 | |
7e86f2f6 | 1044 | for (total = 0; total < (ssize_t)bytes; total += count, buf += count) |
f14324a7 | 1045 | { |
7e86f2f6 | 1046 | count = (*r->iocb)(r->ctx, buf, bytes - (size_t)total); |
f14324a7 | 1047 | |
a5425f93 | 1048 | DEBUG_printf(("6cups_raster_io: count=%d, total=%d", (int)count, (int)total)); |
f14324a7 | 1049 | if (count == 0) |
a5425f93 MS |
1050 | { |
1051 | DEBUG_puts("6cups_raster_io: Returning 0."); | |
f14324a7 | 1052 | return (0); |
a5425f93 | 1053 | } |
f14324a7 | 1054 | else if (count < 0) |
a5425f93 MS |
1055 | { |
1056 | DEBUG_puts("6cups_raster_io: Returning -1 on error."); | |
f14324a7 | 1057 | return (-1); |
a5425f93 | 1058 | } |
d9564ec7 MS |
1059 | |
1060 | #ifdef DEBUG | |
1061 | r->iocount += (size_t)count; | |
1062 | #endif /* DEBUG */ | |
f14324a7 MS |
1063 | } |
1064 | ||
a5425f93 MS |
1065 | DEBUG_printf(("6cups_raster_io: Returning " CUPS_LLFMT ".", CUPS_LLCAST total)); |
1066 | ||
7e86f2f6 | 1067 | return (total); |
f14324a7 MS |
1068 | } |
1069 | ||
1070 | ||
ed486911 | 1071 | /* |
1072 | * 'cups_raster_read()' - Read through the raster buffer. | |
1073 | */ | |
1074 | ||
7e86f2f6 | 1075 | static ssize_t /* O - Number of bytes read */ |
ed486911 | 1076 | cups_raster_read(cups_raster_t *r, /* I - Raster stream */ |
1077 | unsigned char *buf, /* I - Buffer */ | |
7e86f2f6 | 1078 | size_t bytes) /* I - Number of bytes to read */ |
ed486911 | 1079 | { |
7e86f2f6 | 1080 | ssize_t count, /* Number of bytes read */ |
ed486911 | 1081 | remaining, /* Remaining bytes in buffer */ |
1082 | total; /* Total bytes read */ | |
1083 | ||
1084 | ||
590e44a4 | 1085 | DEBUG_printf(("5cups_raster_read(r=%p, buf=%p, bytes=" CUPS_LLFMT ")\n", r, buf, CUPS_LLCAST bytes)); |
ed486911 | 1086 | |
1087 | if (!r->compressed) | |
f14324a7 | 1088 | return (cups_raster_io(r, buf, bytes)); |
ed486911 | 1089 | |
1090 | /* | |
1091 | * Allocate a read buffer as needed... | |
1092 | */ | |
1093 | ||
7e86f2f6 | 1094 | count = (ssize_t)(2 * r->header.cupsBytesPerLine); |
d9564ec7 MS |
1095 | if (count < 65536) |
1096 | count = 65536; | |
ed486911 | 1097 | |
c8fef167 | 1098 | if ((size_t)count > r->bufsize) |
ed486911 | 1099 | { |
7e86f2f6 | 1100 | ssize_t offset = r->bufptr - r->buffer; |
a2326b5b | 1101 | /* Offset to current start of buffer */ |
7e86f2f6 | 1102 | ssize_t end = r->bufend - r->buffer;/* Offset to current end of buffer */ |
ed486911 | 1103 | unsigned char *rptr; /* Pointer in read buffer */ |
1104 | ||
1105 | if (r->buffer) | |
7e86f2f6 | 1106 | rptr = realloc(r->buffer, (size_t)count); |
ed486911 | 1107 | else |
7e86f2f6 | 1108 | rptr = malloc((size_t)count); |
ed486911 | 1109 | |
1110 | if (!rptr) | |
1111 | return (0); | |
1112 | ||
1113 | r->buffer = rptr; | |
1114 | r->bufptr = rptr + offset; | |
1115 | r->bufend = rptr + end; | |
7e86f2f6 | 1116 | r->bufsize = (size_t)count; |
ed486911 | 1117 | } |
1118 | ||
1119 | /* | |
1120 | * Loop until we have read everything... | |
1121 | */ | |
1122 | ||
a2326b5b | 1123 | for (total = 0, remaining = (int)(r->bufend - r->bufptr); |
7e86f2f6 | 1124 | total < (ssize_t)bytes; |
ed486911 | 1125 | total += count, buf += count) |
1126 | { | |
7e86f2f6 | 1127 | count = (ssize_t)bytes - total; |
ed486911 | 1128 | |
590e44a4 | 1129 | DEBUG_printf(("6cups_raster_read: count=" CUPS_LLFMT ", remaining=" CUPS_LLFMT ", buf=%p, bufptr=%p, bufend=%p", CUPS_LLCAST count, CUPS_LLCAST remaining, buf, r->bufptr, r->bufend)); |
ed486911 | 1130 | |
1131 | if (remaining == 0) | |
1132 | { | |
1133 | if (count < 16) | |
1134 | { | |
1135 | /* | |
1136 | * Read into the raster buffer and then copy... | |
1137 | */ | |
1138 | ||
c8fef167 | 1139 | remaining = (*r->iocb)(r->ctx, r->buffer, r->bufsize); |
ed486911 | 1140 | if (remaining <= 0) |
1141 | return (0); | |
1142 | ||
1143 | r->bufptr = r->buffer; | |
1144 | r->bufend = r->buffer + remaining; | |
d9564ec7 MS |
1145 | |
1146 | #ifdef DEBUG | |
1147 | r->iocount += (size_t)remaining; | |
1148 | #endif /* DEBUG */ | |
ed486911 | 1149 | } |
1150 | else | |
1151 | { | |
1152 | /* | |
1153 | * Read directly into "buf"... | |
1154 | */ | |
1155 | ||
7e86f2f6 | 1156 | count = (*r->iocb)(r->ctx, buf, (size_t)count); |
ed486911 | 1157 | |
1158 | if (count <= 0) | |
1159 | return (0); | |
1160 | ||
d9564ec7 MS |
1161 | #ifdef DEBUG |
1162 | r->iocount += (size_t)count; | |
1163 | #endif /* DEBUG */ | |
1164 | ||
ed486911 | 1165 | continue; |
1166 | } | |
1167 | } | |
1168 | ||
1169 | /* | |
1170 | * Copy bytes from raster buffer to "buf"... | |
1171 | */ | |
1172 | ||
1173 | if (count > remaining) | |
1174 | count = remaining; | |
1175 | ||
1176 | if (count == 1) | |
1177 | { | |
1178 | /* | |
1179 | * Copy 1 byte... | |
1180 | */ | |
1181 | ||
1182 | *buf = *(r->bufptr)++; | |
1183 | remaining --; | |
1184 | } | |
1185 | else if (count < 128) | |
1186 | { | |
1187 | /* | |
1188 | * Copy up to 127 bytes without using memcpy(); this is | |
1189 | * faster because it avoids an extra function call and is | |
1190 | * often further optimized by the compiler... | |
1191 | */ | |
1192 | ||
1193 | unsigned char *bufptr; /* Temporary buffer pointer */ | |
1194 | ||
ed486911 | 1195 | remaining -= count; |
1196 | ||
1197 | for (bufptr = r->bufptr; count > 0; count --, total ++) | |
1198 | *buf++ = *bufptr++; | |
1199 | ||
1200 | r->bufptr = bufptr; | |
1201 | } | |
1202 | else | |
1203 | { | |
1204 | /* | |
1205 | * Use memcpy() for a large read... | |
1206 | */ | |
1207 | ||
07623986 | 1208 | memcpy(buf, r->bufptr, (size_t)count); |
ed486911 | 1209 | r->bufptr += count; |
1210 | remaining -= count; | |
1211 | } | |
1212 | } | |
1213 | ||
590e44a4 MS |
1214 | DEBUG_printf(("6cups_raster_read: Returning %ld", (long)total)); |
1215 | ||
ed486911 | 1216 | return (total); |
1217 | } | |
1218 | ||
1219 | ||
ef416fc2 | 1220 | /* |
1221 | * 'cups_raster_update()' - Update the raster header and row count for the | |
1222 | * current page. | |
1223 | */ | |
1224 | ||
3c0659cd | 1225 | static int /* O - 1 on success, 0 on failure */ |
ef416fc2 | 1226 | cups_raster_update(cups_raster_t *r) /* I - Raster stream */ |
1227 | { | |
f301802f | 1228 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1 || |
1229 | r->header.cupsNumColors == 0) | |
ef416fc2 | 1230 | { |
1231 | /* | |
1232 | * Set the "cupsNumColors" field according to the colorspace... | |
1233 | */ | |
1234 | ||
1235 | switch (r->header.cupsColorSpace) | |
1236 | { | |
1237 | case CUPS_CSPACE_W : | |
1238 | case CUPS_CSPACE_K : | |
1239 | case CUPS_CSPACE_WHITE : | |
1240 | case CUPS_CSPACE_GOLD : | |
1241 | case CUPS_CSPACE_SILVER : | |
c7017ecc | 1242 | case CUPS_CSPACE_SW : |
ef416fc2 | 1243 | r->header.cupsNumColors = 1; |
1244 | break; | |
1245 | ||
ef416fc2 | 1246 | case CUPS_CSPACE_RGB : |
1247 | case CUPS_CSPACE_CMY : | |
1248 | case CUPS_CSPACE_YMC : | |
1249 | case CUPS_CSPACE_CIEXYZ : | |
1250 | case CUPS_CSPACE_CIELab : | |
c7017ecc MS |
1251 | case CUPS_CSPACE_SRGB : |
1252 | case CUPS_CSPACE_ADOBERGB : | |
f301802f | 1253 | case CUPS_CSPACE_ICC1 : |
1254 | case CUPS_CSPACE_ICC2 : | |
ef416fc2 | 1255 | case CUPS_CSPACE_ICC3 : |
f301802f | 1256 | case CUPS_CSPACE_ICC4 : |
1257 | case CUPS_CSPACE_ICC5 : | |
1258 | case CUPS_CSPACE_ICC6 : | |
1259 | case CUPS_CSPACE_ICC7 : | |
1260 | case CUPS_CSPACE_ICC8 : | |
1261 | case CUPS_CSPACE_ICC9 : | |
1262 | case CUPS_CSPACE_ICCA : | |
1263 | case CUPS_CSPACE_ICCB : | |
1264 | case CUPS_CSPACE_ICCC : | |
1265 | case CUPS_CSPACE_ICCD : | |
1266 | case CUPS_CSPACE_ICCE : | |
1267 | case CUPS_CSPACE_ICCF : | |
ef416fc2 | 1268 | r->header.cupsNumColors = 3; |
1269 | break; | |
1270 | ||
1271 | case CUPS_CSPACE_RGBA : | |
1272 | case CUPS_CSPACE_RGBW : | |
1273 | case CUPS_CSPACE_CMYK : | |
1274 | case CUPS_CSPACE_YMCK : | |
1275 | case CUPS_CSPACE_KCMY : | |
1276 | case CUPS_CSPACE_GMCK : | |
1277 | case CUPS_CSPACE_GMCS : | |
ef416fc2 | 1278 | r->header.cupsNumColors = 4; |
1279 | break; | |
1280 | ||
1281 | case CUPS_CSPACE_KCMYcm : | |
1282 | if (r->header.cupsBitsPerPixel < 8) | |
1283 | r->header.cupsNumColors = 6; | |
1284 | else | |
1285 | r->header.cupsNumColors = 4; | |
1286 | break; | |
c7017ecc MS |
1287 | |
1288 | case CUPS_CSPACE_DEVICE1 : | |
1289 | case CUPS_CSPACE_DEVICE2 : | |
1290 | case CUPS_CSPACE_DEVICE3 : | |
1291 | case CUPS_CSPACE_DEVICE4 : | |
1292 | case CUPS_CSPACE_DEVICE5 : | |
1293 | case CUPS_CSPACE_DEVICE6 : | |
1294 | case CUPS_CSPACE_DEVICE7 : | |
1295 | case CUPS_CSPACE_DEVICE8 : | |
1296 | case CUPS_CSPACE_DEVICE9 : | |
1297 | case CUPS_CSPACE_DEVICEA : | |
1298 | case CUPS_CSPACE_DEVICEB : | |
1299 | case CUPS_CSPACE_DEVICEC : | |
1300 | case CUPS_CSPACE_DEVICED : | |
1301 | case CUPS_CSPACE_DEVICEE : | |
1302 | case CUPS_CSPACE_DEVICEF : | |
1303 | r->header.cupsNumColors = r->header.cupsColorSpace - | |
1304 | CUPS_CSPACE_DEVICE1 + 1; | |
1305 | break; | |
3c0659cd MS |
1306 | |
1307 | default : | |
1308 | /* Unknown color space */ | |
1309 | return (0); | |
ef416fc2 | 1310 | } |
1311 | } | |
1312 | ||
1313 | /* | |
1314 | * Set the number of bytes per pixel/color... | |
1315 | */ | |
1316 | ||
1317 | if (r->header.cupsColorOrder == CUPS_ORDER_CHUNKED) | |
1318 | r->bpp = (r->header.cupsBitsPerPixel + 7) / 8; | |
1319 | else | |
1320 | r->bpp = (r->header.cupsBitsPerColor + 7) / 8; | |
1321 | ||
33076d24 MS |
1322 | if (r->bpp == 0) |
1323 | r->bpp = 1; | |
1324 | ||
ef416fc2 | 1325 | /* |
1326 | * Set the number of remaining rows... | |
1327 | */ | |
1328 | ||
1329 | if (r->header.cupsColorOrder == CUPS_ORDER_PLANAR) | |
1330 | r->remaining = r->header.cupsHeight * r->header.cupsNumColors; | |
1331 | else | |
1332 | r->remaining = r->header.cupsHeight; | |
1333 | ||
1334 | /* | |
ed486911 | 1335 | * Allocate the compression buffer... |
ef416fc2 | 1336 | */ |
1337 | ||
ed486911 | 1338 | if (r->compressed) |
1339 | { | |
1340 | if (r->pixels != NULL) | |
1341 | free(r->pixels); | |
ef416fc2 | 1342 | |
ed486911 | 1343 | r->pixels = calloc(r->header.cupsBytesPerLine, 1); |
1344 | r->pcurrent = r->pixels; | |
1345 | r->pend = r->pixels + r->header.cupsBytesPerLine; | |
1346 | r->count = 0; | |
1347 | } | |
58e9f268 MS |
1348 | |
1349 | return (1); | |
ef416fc2 | 1350 | } |
1351 | ||
1352 | ||
f7deaa1a | 1353 | /* |
1354 | * 'cups_raster_write()' - Write a row of compressed raster data... | |
1355 | */ | |
1356 | ||
7e86f2f6 | 1357 | static ssize_t /* O - Number of bytes written */ |
f7deaa1a | 1358 | cups_raster_write( |
1359 | cups_raster_t *r, /* I - Raster stream */ | |
1360 | const unsigned char *pixels) /* I - Pixel data to write */ | |
1361 | { | |
1362 | const unsigned char *start, /* Start of sequence */ | |
1363 | *ptr, /* Current pointer in sequence */ | |
1364 | *pend, /* End of raster buffer */ | |
1365 | *plast; /* Pointer to last pixel */ | |
1366 | unsigned char *wptr; /* Pointer into write buffer */ | |
7e86f2f6 | 1367 | unsigned bpp, /* Bytes per pixel */ |
1f0275e3 | 1368 | count; /* Count */ |
f7deaa1a | 1369 | |
1370 | ||
590e44a4 | 1371 | DEBUG_printf(("3cups_raster_write(r=%p, pixels=%p)\n", r, pixels)); |
f7deaa1a | 1372 | |
1373 | /* | |
1374 | * Allocate a write buffer as needed... | |
1375 | */ | |
1376 | ||
1377 | count = r->header.cupsBytesPerLine * 2; | |
a5425f93 MS |
1378 | if (count < 65536) |
1379 | count = 65536; | |
f8e5a7b4 | 1380 | |
c8fef167 | 1381 | if ((size_t)count > r->bufsize) |
f7deaa1a | 1382 | { |
1383 | if (r->buffer) | |
1384 | wptr = realloc(r->buffer, count); | |
1385 | else | |
1386 | wptr = malloc(count); | |
1387 | ||
1388 | if (!wptr) | |
a5425f93 MS |
1389 | { |
1390 | DEBUG_printf(("4cups_raster_write: Unable to allocate " CUPS_LLFMT " bytes for raster buffer: %s", CUPS_LLCAST count, strerror(errno))); | |
f7deaa1a | 1391 | return (-1); |
a5425f93 | 1392 | } |
f7deaa1a | 1393 | |
1394 | r->buffer = wptr; | |
1395 | r->bufsize = count; | |
1396 | } | |
1397 | ||
1398 | /* | |
1399 | * Write the row repeat count... | |
1400 | */ | |
1401 | ||
1402 | bpp = r->bpp; | |
1403 | pend = pixels + r->header.cupsBytesPerLine; | |
1404 | plast = pend - bpp; | |
1405 | wptr = r->buffer; | |
7e86f2f6 | 1406 | *wptr++ = (unsigned char)(r->count - 1); |
f7deaa1a | 1407 | |
1408 | /* | |
07ed0e9a | 1409 | * Write using a modified PackBits compression... |
f7deaa1a | 1410 | */ |
1411 | ||
1412 | for (ptr = pixels; ptr < pend;) | |
1413 | { | |
1414 | start = ptr; | |
1415 | ptr += bpp; | |
1416 | ||
1417 | if (ptr == pend) | |
1418 | { | |
1419 | /* | |
1420 | * Encode a single pixel at the end... | |
1421 | */ | |
1422 | ||
1423 | *wptr++ = 0; | |
1424 | for (count = bpp; count > 0; count --) | |
1425 | *wptr++ = *start++; | |
1426 | } | |
1427 | else if (!memcmp(start, ptr, bpp)) | |
1428 | { | |
1429 | /* | |
1430 | * Encode a sequence of repeating pixels... | |
1431 | */ | |
1432 | ||
1433 | for (count = 2; count < 128 && ptr < plast; count ++, ptr += bpp) | |
1434 | if (memcmp(ptr, ptr + bpp, bpp)) | |
1435 | break; | |
1436 | ||
7e86f2f6 | 1437 | *wptr++ = (unsigned char)(count - 1); |
f7deaa1a | 1438 | for (count = bpp; count > 0; count --) |
1439 | *wptr++ = *ptr++; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | /* | |
1444 | * Encode a sequence of non-repeating pixels... | |
1445 | */ | |
1446 | ||
07ed0e9a | 1447 | for (count = 1; count < 128 && ptr < plast; count ++, ptr += bpp) |
f7deaa1a | 1448 | if (!memcmp(ptr, ptr + bpp, bpp)) |
1449 | break; | |
1450 | ||
1451 | if (ptr >= plast && count < 128) | |
1452 | { | |
1453 | count ++; | |
1454 | ptr += bpp; | |
1455 | } | |
f14324a7 | 1456 | |
7e86f2f6 | 1457 | *wptr++ = (unsigned char)(257 - count); |
f7deaa1a | 1458 | |
1459 | count *= bpp; | |
1460 | memcpy(wptr, start, count); | |
1461 | wptr += count; | |
1462 | } | |
1463 | } | |
1464 | ||
a5425f93 MS |
1465 | DEBUG_printf(("4cups_raster_write: Writing " CUPS_LLFMT " bytes.", CUPS_LLCAST (wptr - r->buffer))); |
1466 | ||
7e86f2f6 | 1467 | return (cups_raster_io(r, r->buffer, (size_t)(wptr - r->buffer))); |
f7deaa1a | 1468 | } |
1469 | ||
1470 | ||
ef416fc2 | 1471 | /* |
c8fef167 | 1472 | * 'cups_read_fd()' - Read bytes from a file. |
ef416fc2 | 1473 | */ |
1474 | ||
c8fef167 MS |
1475 | static ssize_t /* O - Bytes read or -1 */ |
1476 | cups_read_fd(void *ctx, /* I - File descriptor as pointer */ | |
1477 | unsigned char *buf, /* I - Buffer for read */ | |
f14324a7 | 1478 | size_t bytes) /* I - Maximum number of bytes to read */ |
ef416fc2 | 1479 | { |
c8fef167 MS |
1480 | int fd = (int)((intptr_t)ctx); |
1481 | /* File descriptor */ | |
1482 | ssize_t count; /* Number of bytes read */ | |
ef416fc2 | 1483 | |
ef416fc2 | 1484 | |
a2326b5b MS |
1485 | #ifdef WIN32 /* Sigh */ |
1486 | while ((count = read(fd, buf, (unsigned)bytes)) < 0) | |
1487 | #else | |
f14324a7 | 1488 | while ((count = read(fd, buf, bytes)) < 0) |
a2326b5b | 1489 | #endif /* WIN32 */ |
f14324a7 | 1490 | if (errno != EINTR && errno != EAGAIN) |
d9564ec7 MS |
1491 | { |
1492 | DEBUG_printf(("4cups_read_fd: %s", strerror(errno))); | |
f14324a7 | 1493 | return (-1); |
d9564ec7 MS |
1494 | } |
1495 | ||
1496 | DEBUG_printf(("4cups_read_fd: Returning %d bytes.", (int)count)); | |
ef416fc2 | 1497 | |
f14324a7 | 1498 | return (count); |
ef416fc2 | 1499 | } |
1500 | ||
1501 | ||
ed486911 | 1502 | /* |
1503 | * 'cups_swap()' - Swap bytes in raster data... | |
1504 | */ | |
1505 | ||
1506 | static void | |
1507 | cups_swap(unsigned char *buf, /* I - Buffer to swap */ | |
7e86f2f6 | 1508 | size_t bytes) /* I - Number of bytes to swap */ |
ed486911 | 1509 | { |
1510 | unsigned char even, odd; /* Temporary variables */ | |
1511 | ||
1512 | ||
1513 | bytes /= 2; | |
1514 | ||
1515 | while (bytes > 0) | |
1516 | { | |
1517 | even = buf[0]; | |
1518 | odd = buf[1]; | |
1519 | buf[0] = odd; | |
1520 | buf[1] = even; | |
1521 | ||
1522 | buf += 2; | |
1523 | bytes --; | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | ||
ef416fc2 | 1528 | /* |
c8fef167 | 1529 | * 'cups_write_fd()' - Write bytes to a file. |
ef416fc2 | 1530 | */ |
1531 | ||
c8fef167 MS |
1532 | static ssize_t /* O - Bytes written or -1 */ |
1533 | cups_write_fd(void *ctx, /* I - File descriptor pointer */ | |
1534 | unsigned char *buf, /* I - Bytes to write */ | |
1535 | size_t bytes) /* I - Number of bytes to write */ | |
ef416fc2 | 1536 | { |
c8fef167 MS |
1537 | int fd = (int)((intptr_t)ctx); |
1538 | /* File descriptor */ | |
1539 | ssize_t count; /* Number of bytes written */ | |
ef416fc2 | 1540 | |
ef416fc2 | 1541 | |
a2326b5b MS |
1542 | #ifdef WIN32 /* Sigh */ |
1543 | while ((count = write(fd, buf, (unsigned)bytes)) < 0) | |
1544 | #else | |
f14324a7 | 1545 | while ((count = write(fd, buf, bytes)) < 0) |
a2326b5b | 1546 | #endif /* WIN32 */ |
f14324a7 | 1547 | if (errno != EINTR && errno != EAGAIN) |
a5425f93 MS |
1548 | { |
1549 | DEBUG_printf(("4cups_write_fd: %s", strerror(errno))); | |
f14324a7 | 1550 | return (-1); |
a5425f93 | 1551 | } |
ef416fc2 | 1552 | |
f14324a7 | 1553 | return (count); |
ef416fc2 | 1554 | } |
1555 | ||
1556 | ||
1557 | /* | |
f2d18633 | 1558 | * End of "$Id$". |
ef416fc2 | 1559 | */ |