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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 | ||
6e5a57e8 MS |
98 | /* |
99 | * 'cupsRasterInitPWGHeader()' - Initialize a page header for PWG Raster output. | |
100 | * | |
101 | * The "media" argument specifies the media to use. | |
102 | * | |
103 | * The "type" argument specifies a "pwg-raster-document-type-supported" value | |
104 | * that controls the color space and bit depth of the raster data. | |
105 | * | |
106 | * The "xres" and "yres" arguments specify the raster resolution in dots per | |
107 | * inch. | |
108 | * | |
109 | * The "sheet_back" argument specifies a "pwg-raster-document-sheet-back" value | |
110 | * to apply for the back side of a page. Pass @code NULL@ for the front side. | |
111 | * | |
112 | * @since CUPS 2.2@ | |
113 | */ | |
114 | ||
115 | int /* O - 1 on success, 0 on failure */ | |
116 | cupsRasterInitPWGHeader( | |
117 | cups_page_header2_t *h, /* I - Page header */ | |
118 | pwg_media_t *media, /* I - PWG media information */ | |
119 | const char *type, /* I - PWG raster type string */ | |
120 | int xdpi, /* I - Cross-feed direction (horizontal) resolution */ | |
121 | int ydpi, /* I - Feed direction (vertical) resolution */ | |
122 | const char *sides, /* I - IPP "sides" option value */ | |
123 | const char *sheet_back) /* I - Transform for back side or @code NULL@ for none */ | |
124 | { | |
125 | if (!h || !media || !type || xdpi <= 0 || ydpi <= 0) | |
126 | { | |
127 | _cupsRasterAddError("%s", strerror(EINVAL)); | |
128 | return (0); | |
129 | } | |
130 | ||
131 | /* | |
132 | * Initialize the page header... | |
133 | */ | |
134 | ||
135 | memset(h, 0, sizeof(cups_page_header2_t)); | |
136 | ||
137 | strlcpy(h->cupsPageSizeName, media->pwg, sizeof(h->cupsPageSizeName)); | |
138 | ||
139 | h->PageSize[0] = (unsigned)(72 * media->width / 2540); | |
140 | h->PageSize[1] = (unsigned)(72 * media->length / 2540); | |
141 | ||
4ce95109 MS |
142 | /* This never gets written but is needed for some applications */ |
143 | h->cupsPageSize[0] = 72.0f * media->width / 2540.0f; | |
144 | h->cupsPageSize[1] = 72.0f * media->length / 2540.0f; | |
145 | ||
6e5a57e8 MS |
146 | h->ImagingBoundingBox[2] = h->PageSize[0]; |
147 | h->ImagingBoundingBox[3] = h->PageSize[1]; | |
148 | ||
149 | h->HWResolution[0] = (unsigned)xdpi; | |
150 | h->HWResolution[1] = (unsigned)ydpi; | |
151 | ||
152 | h->cupsWidth = (unsigned)(media->width * xdpi / 2540); | |
153 | h->cupsHeight = (unsigned)(media->length * ydpi / 2540); | |
154 | ||
155 | if (h->cupsWidth > 0x00ffffff || h->cupsHeight > 0x00ffffff) | |
156 | { | |
157 | _cupsRasterAddError("Raster dimensions too large."); | |
158 | return (0); | |
159 | } | |
160 | ||
3e679a29 MS |
161 | h->cupsInteger[CUPS_RASTER_PWG_ImageBoxRight] = h->cupsWidth; |
162 | h->cupsInteger[CUPS_RASTER_PWG_ImageBoxBottom] = h->cupsHeight; | |
6e5a57e8 MS |
163 | |
164 | /* | |
165 | * Colorspace and bytes per line... | |
166 | */ | |
167 | ||
168 | if (!strcmp(type, "adobe-rgb_8")) | |
169 | { | |
170 | h->cupsBitsPerColor = 8; | |
171 | h->cupsBitsPerPixel = 24; | |
172 | h->cupsColorSpace = CUPS_CSPACE_ADOBERGB; | |
173 | } | |
174 | else if (!strcmp(type, "adobe-rgb_16")) | |
175 | { | |
176 | h->cupsBitsPerColor = 16; | |
177 | h->cupsBitsPerPixel = 48; | |
178 | h->cupsColorSpace = CUPS_CSPACE_ADOBERGB; | |
179 | } | |
180 | else if (!strcmp(type, "black_1")) | |
181 | { | |
182 | h->cupsBitsPerColor = 1; | |
183 | h->cupsBitsPerPixel = 1; | |
184 | h->cupsColorSpace = CUPS_CSPACE_K; | |
185 | } | |
186 | else if (!strcmp(type, "black_8")) | |
187 | { | |
188 | h->cupsBitsPerColor = 8; | |
189 | h->cupsBitsPerPixel = 8; | |
190 | h->cupsColorSpace = CUPS_CSPACE_K; | |
191 | } | |
192 | else if (!strcmp(type, "black_16")) | |
193 | { | |
194 | h->cupsBitsPerColor = 16; | |
195 | h->cupsBitsPerPixel = 16; | |
196 | h->cupsColorSpace = CUPS_CSPACE_K; | |
197 | } | |
198 | else if (!strcmp(type, "cmyk_8")) | |
199 | { | |
200 | h->cupsBitsPerColor = 8; | |
201 | h->cupsBitsPerPixel = 32; | |
202 | h->cupsColorSpace = CUPS_CSPACE_CMYK; | |
203 | } | |
204 | else if (!strcmp(type, "cmyk_16")) | |
205 | { | |
206 | h->cupsBitsPerColor = 16; | |
207 | h->cupsBitsPerPixel = 64; | |
208 | h->cupsColorSpace = CUPS_CSPACE_CMYK; | |
209 | } | |
210 | else if (!strncmp(type, "device", 6) && type[6] >= '1' && type[6] <= '9') | |
211 | { | |
212 | int ncolors, bits; /* Number of colors and bits */ | |
213 | ||
214 | ||
215 | if (sscanf(type, "device%d_%d", &ncolors, &bits) != 2 || ncolors > 15 || (bits != 8 && bits != 16)) | |
216 | { | |
217 | _cupsRasterAddError("Unsupported raster type \'%s\'.", type); | |
218 | return (0); | |
219 | } | |
220 | ||
221 | h->cupsBitsPerColor = (unsigned)bits; | |
222 | h->cupsBitsPerPixel = (unsigned)(ncolors * bits); | |
223 | h->cupsColorSpace = (cups_cspace_t)(CUPS_CSPACE_DEVICE1 + ncolors - 1); | |
224 | } | |
225 | else if (!strcmp(type, "rgb_8")) | |
226 | { | |
227 | h->cupsBitsPerColor = 8; | |
228 | h->cupsBitsPerPixel = 24; | |
229 | h->cupsColorSpace = CUPS_CSPACE_RGB; | |
230 | } | |
231 | else if (!strcmp(type, "rgb_16")) | |
232 | { | |
233 | h->cupsBitsPerColor = 16; | |
234 | h->cupsBitsPerPixel = 48; | |
235 | h->cupsColorSpace = CUPS_CSPACE_RGB; | |
236 | } | |
237 | else if (!strcmp(type, "sgray_1")) | |
238 | { | |
239 | h->cupsBitsPerColor = 1; | |
240 | h->cupsBitsPerPixel = 1; | |
241 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
242 | } | |
243 | else if (!strcmp(type, "sgray_8")) | |
244 | { | |
245 | h->cupsBitsPerColor = 8; | |
246 | h->cupsBitsPerPixel = 8; | |
247 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
248 | } | |
249 | else if (!strcmp(type, "sgray_16")) | |
250 | { | |
251 | h->cupsBitsPerColor = 16; | |
252 | h->cupsBitsPerPixel = 16; | |
253 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
254 | } | |
255 | else if (!strcmp(type, "srgb_8")) | |
256 | { | |
257 | h->cupsBitsPerColor = 8; | |
258 | h->cupsBitsPerPixel = 24; | |
259 | h->cupsColorSpace = CUPS_CSPACE_SRGB; | |
260 | } | |
261 | else if (!strcmp(type, "srgb_16")) | |
262 | { | |
263 | h->cupsBitsPerColor = 16; | |
264 | h->cupsBitsPerPixel = 48; | |
265 | h->cupsColorSpace = CUPS_CSPACE_SRGB; | |
266 | } | |
267 | else | |
268 | { | |
269 | _cupsRasterAddError("Unsupported raster type \'%s\'.", type); | |
270 | return (0); | |
271 | } | |
272 | ||
273 | h->cupsColorOrder = CUPS_ORDER_CHUNKED; | |
274 | h->cupsNumColors = h->cupsBitsPerPixel / h->cupsBitsPerColor; | |
275 | h->cupsBytesPerLine = (h->cupsWidth * h->cupsBitsPerPixel + 7) / 8; | |
276 | ||
277 | /* | |
278 | * Duplex support... | |
279 | */ | |
280 | ||
3e679a29 MS |
281 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 1; |
282 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 1; | |
6e5a57e8 MS |
283 | |
284 | if (sides) | |
285 | { | |
286 | if (!strcmp(sides, "two-sided-long-edge")) | |
287 | { | |
288 | h->Duplex = 1; | |
289 | } | |
290 | else if (!strcmp(sides, "two-sided-short-edge")) | |
291 | { | |
292 | h->Duplex = 1; | |
293 | h->Tumble = 1; | |
294 | } | |
295 | else if (strcmp(sides, "one-sided")) | |
296 | { | |
297 | _cupsRasterAddError("Unsupported sides value \'%s\'.", sides); | |
298 | return (0); | |
299 | } | |
300 | ||
301 | if (sheet_back) | |
302 | { | |
303 | if (!strcmp(sheet_back, "flipped")) | |
304 | { | |
305 | if (h->Tumble) | |
3e679a29 | 306 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
6e5a57e8 | 307 | else |
3e679a29 | 308 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; |
6e5a57e8 MS |
309 | } |
310 | else if (!strcmp(sheet_back, "manual-tumble")) | |
311 | { | |
312 | if (h->Tumble) | |
313 | { | |
3e679a29 MS |
314 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
315 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; | |
6e5a57e8 MS |
316 | } |
317 | } | |
318 | else if (!strcmp(sheet_back, "rotated")) | |
319 | { | |
320 | if (!h->Tumble) | |
321 | { | |
3e679a29 MS |
322 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
323 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; | |
6e5a57e8 MS |
324 | } |
325 | } | |
326 | else if (strcmp(sheet_back, "normal")) | |
327 | { | |
328 | _cupsRasterAddError("Unsupported sheet_back value \'%s\'.", sheet_back); | |
329 | return (0); | |
330 | } | |
331 | } | |
332 | } | |
333 | ||
334 | return (1); | |
335 | } | |
336 | ||
337 | ||
ef416fc2 | 338 | /* |
c8fef167 | 339 | * 'cupsRasterOpen()' - Open a raster stream using a file descriptor. |
db0bd74a MS |
340 | * |
341 | * This function associates a raster stream with the given file descriptor. | |
342 | * For most printer driver filters, "fd" will be 0 (stdin). For most raster | |
343 | * image processor (RIP) filters that generate raster data, "fd" will be 1 | |
344 | * (stdout). | |
345 | * | |
c8fef167 MS |
346 | * When writing raster data, the @code CUPS_RASTER_WRITE@, |
347 | * @code CUPS_RASTER_WRITE_COMPRESS@, or @code CUPS_RASTER_WRITE_PWG@ mode can | |
348 | * be used - compressed and PWG output is generally 25-50% smaller but adds a | |
349 | * 100-300% execution time overhead. | |
ef416fc2 | 350 | */ |
351 | ||
352 | cups_raster_t * /* O - New stream */ | |
353 | cupsRasterOpen(int fd, /* I - File descriptor */ | |
c8fef167 MS |
354 | cups_mode_t mode) /* I - Mode - @code CUPS_RASTER_READ@, |
355 | @code CUPS_RASTER_WRITE@, | |
356 | @code CUPS_RASTER_WRITE_COMPRESSED@, | |
357 | or @code CUPS_RASTER_WRITE_PWG@ */ | |
358 | { | |
359 | if (mode == CUPS_RASTER_READ) | |
360 | return (cupsRasterOpenIO(cups_read_fd, (void *)((intptr_t)fd), mode)); | |
361 | else | |
362 | return (cupsRasterOpenIO(cups_write_fd, (void *)((intptr_t)fd), mode)); | |
363 | } | |
364 | ||
365 | ||
366 | /* | |
367 | * 'cupsRasterOpenIO()' - Open a raster stream using a callback function. | |
368 | * | |
369 | * This function associates a raster stream with the given callback function and | |
370 | * context pointer. | |
371 | * | |
372 | * When writing raster data, the @code CUPS_RASTER_WRITE@, | |
373 | * @code CUPS_RASTER_WRITE_COMPRESS@, or @code CUPS_RASTER_WRITE_PWG@ mode can | |
374 | * be used - compressed and PWG output is generally 25-50% smaller but adds a | |
375 | * 100-300% execution time overhead. | |
376 | */ | |
377 | ||
378 | cups_raster_t * /* O - New stream */ | |
379 | cupsRasterOpenIO( | |
380 | cups_raster_iocb_t iocb, /* I - Read/write callback */ | |
381 | void *ctx, /* I - Context pointer for callback */ | |
382 | cups_mode_t mode) /* I - Mode - @code CUPS_RASTER_READ@, | |
383 | @code CUPS_RASTER_WRITE@, | |
384 | @code CUPS_RASTER_WRITE_COMPRESSED@, | |
385 | or @code CUPS_RASTER_WRITE_PWG@ */ | |
ef416fc2 | 386 | { |
387 | cups_raster_t *r; /* New stream */ | |
388 | ||
389 | ||
f7deaa1a | 390 | _cupsRasterClearError(); |
391 | ||
ef416fc2 | 392 | if ((r = calloc(sizeof(cups_raster_t), 1)) == NULL) |
f7deaa1a | 393 | { |
394 | _cupsRasterAddError("Unable to allocate memory for raster stream: %s\n", | |
395 | strerror(errno)); | |
ef416fc2 | 396 | return (NULL); |
f7deaa1a | 397 | } |
ef416fc2 | 398 | |
c8fef167 MS |
399 | r->ctx = ctx; |
400 | r->iocb = iocb; | |
401 | r->mode = mode; | |
ef416fc2 | 402 | |
403 | if (mode == CUPS_RASTER_READ) | |
404 | { | |
405 | /* | |
406 | * Open for read - get sync word... | |
407 | */ | |
408 | ||
f14324a7 | 409 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) != |
c8fef167 | 410 | sizeof(r->sync)) |
ef416fc2 | 411 | { |
f7deaa1a | 412 | _cupsRasterAddError("Unable to read header from raster stream: %s\n", |
413 | strerror(errno)); | |
ef416fc2 | 414 | free(r); |
415 | return (NULL); | |
416 | } | |
417 | ||
418 | if (r->sync != CUPS_RASTER_SYNC && | |
419 | r->sync != CUPS_RASTER_REVSYNC && | |
420 | r->sync != CUPS_RASTER_SYNCv1 && | |
ed486911 | 421 | r->sync != CUPS_RASTER_REVSYNCv1 && |
422 | r->sync != CUPS_RASTER_SYNCv2 && | |
423 | r->sync != CUPS_RASTER_REVSYNCv2) | |
ef416fc2 | 424 | { |
f7deaa1a | 425 | _cupsRasterAddError("Unknown raster format %08x!\n", r->sync); |
ef416fc2 | 426 | free(r); |
427 | return (NULL); | |
428 | } | |
ed486911 | 429 | |
430 | if (r->sync == CUPS_RASTER_SYNCv2 || | |
431 | r->sync == CUPS_RASTER_REVSYNCv2) | |
432 | r->compressed = 1; | |
433 | ||
434 | if (r->sync == CUPS_RASTER_REVSYNC || | |
435 | r->sync == CUPS_RASTER_REVSYNCv1 || | |
436 | r->sync == CUPS_RASTER_REVSYNCv2) | |
437 | r->swapped = 1; | |
09a101d6 | 438 | |
d9564ec7 | 439 | DEBUG_printf(("1cupsRasterOpenIO: r->swapped=%d, r->sync=%08x\n", r->swapped, r->sync)); |
ef416fc2 | 440 | } |
441 | else | |
442 | { | |
443 | /* | |
444 | * Open for write - put sync word... | |
445 | */ | |
446 | ||
c8fef167 | 447 | switch (mode) |
f7deaa1a | 448 | { |
c8fef167 MS |
449 | default : |
450 | case CUPS_RASTER_WRITE : | |
451 | r->sync = CUPS_RASTER_SYNC; | |
452 | break; | |
453 | ||
454 | case CUPS_RASTER_WRITE_COMPRESSED : | |
455 | r->compressed = 1; | |
456 | r->sync = CUPS_RASTER_SYNCv2; | |
457 | break; | |
458 | ||
459 | case CUPS_RASTER_WRITE_PWG : | |
460 | r->compressed = 1; | |
461 | r->sync = htonl(CUPS_RASTER_SYNC_PWG); | |
462 | r->swapped = r->sync != CUPS_RASTER_SYNC_PWG; | |
463 | break; | |
f7deaa1a | 464 | } |
ed486911 | 465 | |
7e86f2f6 | 466 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) < (ssize_t)sizeof(r->sync)) |
ef416fc2 | 467 | { |
f7deaa1a | 468 | _cupsRasterAddError("Unable to write raster stream header: %s\n", |
469 | strerror(errno)); | |
ef416fc2 | 470 | free(r); |
471 | return (NULL); | |
472 | } | |
473 | } | |
474 | ||
475 | return (r); | |
476 | } | |
477 | ||
478 | ||
479 | /* | |
b423cd4c | 480 | * 'cupsRasterReadHeader()' - Read a raster page header and store it in a |
db0bd74a MS |
481 | * version 1 page header structure. |
482 | * | |
483 | * This function is deprecated. Use @link cupsRasterReadHeader2@ instead. | |
484 | * | |
79e1d494 MS |
485 | * Version 1 page headers were used in CUPS 1.0 and 1.1 and contain a subset |
486 | * of the version 2 page header data. This function handles reading version 2 | |
487 | * page headers and copying only the version 1 data into the provided buffer. | |
488 | * | |
db0bd74a | 489 | * @deprecated@ |
ef416fc2 | 490 | */ |
491 | ||
79e1d494 | 492 | unsigned /* O - 1 on success, 0 on failure/end-of-file */ |
ef416fc2 | 493 | cupsRasterReadHeader( |
494 | cups_raster_t *r, /* I - Raster stream */ | |
495 | cups_page_header_t *h) /* I - Pointer to header data */ | |
496 | { | |
497 | /* | |
498 | * Get the raster header... | |
499 | */ | |
500 | ||
501 | if (!cups_raster_read_header(r)) | |
62bd8d91 MS |
502 | { |
503 | memset(h, 0, sizeof(cups_page_header_t)); | |
ef416fc2 | 504 | return (0); |
62bd8d91 | 505 | } |
f14324a7 | 506 | |
ef416fc2 | 507 | /* |
508 | * Copy the header to the user-supplied buffer... | |
509 | */ | |
510 | ||
511 | memcpy(h, &(r->header), sizeof(cups_page_header_t)); | |
512 | ||
513 | return (1); | |
514 | } | |
515 | ||
516 | ||
517 | /* | |
b423cd4c | 518 | * 'cupsRasterReadHeader2()' - Read a raster page header and store it in a |
db0bd74a | 519 | * version 2 page header structure. |
ef416fc2 | 520 | * |
f3c17241 | 521 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 522 | */ |
523 | ||
79e1d494 | 524 | unsigned /* O - 1 on success, 0 on failure/end-of-file */ |
ef416fc2 | 525 | cupsRasterReadHeader2( |
526 | cups_raster_t *r, /* I - Raster stream */ | |
527 | cups_page_header2_t *h) /* I - Pointer to header data */ | |
528 | { | |
529 | /* | |
530 | * Get the raster header... | |
531 | */ | |
532 | ||
807315e6 | 533 | DEBUG_printf(("cupsRasterReadHeader2(r=%p, h=%p)", (void *)r, (void *)h)); |
590e44a4 | 534 | |
ef416fc2 | 535 | if (!cups_raster_read_header(r)) |
62bd8d91 MS |
536 | { |
537 | memset(h, 0, sizeof(cups_page_header2_t)); | |
ef416fc2 | 538 | return (0); |
62bd8d91 | 539 | } |
f14324a7 | 540 | |
ef416fc2 | 541 | /* |
542 | * Copy the header to the user-supplied buffer... | |
543 | */ | |
544 | ||
545 | memcpy(h, &(r->header), sizeof(cups_page_header2_t)); | |
546 | ||
547 | return (1); | |
548 | } | |
549 | ||
550 | ||
551 | /* | |
552 | * 'cupsRasterReadPixels()' - Read raster pixels. | |
79e1d494 MS |
553 | * |
554 | * For best performance, filters should read one or more whole lines. | |
555 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
556 | * the line buffer and as the number of bytes to read. | |
ef416fc2 | 557 | */ |
558 | ||
559 | unsigned /* O - Number of bytes read */ | |
560 | cupsRasterReadPixels(cups_raster_t *r, /* I - Raster stream */ | |
561 | unsigned char *p, /* I - Pointer to pixel buffer */ | |
562 | unsigned len) /* I - Number of bytes to read */ | |
563 | { | |
7e86f2f6 | 564 | ssize_t bytes; /* Bytes read */ |
ed486911 | 565 | unsigned cupsBytesPerLine; /* cupsBytesPerLine value */ |
ef416fc2 | 566 | unsigned remaining; /* Bytes remaining */ |
567 | unsigned char *ptr, /* Pointer to read buffer */ | |
ed486911 | 568 | byte, /* Byte from file */ |
569 | *temp; /* Pointer into buffer */ | |
7e86f2f6 | 570 | unsigned count; /* Repetition count */ |
ef416fc2 | 571 | |
572 | ||
807315e6 | 573 | DEBUG_printf(("cupsRasterReadPixels(r=%p, p=%p, len=%u)", (void *)r, (void *)p, len)); |
590e44a4 | 574 | |
a4845881 MS |
575 | if (r == NULL || r->mode != CUPS_RASTER_READ || r->remaining == 0 || |
576 | r->header.cupsBytesPerLine == 0) | |
590e44a4 MS |
577 | { |
578 | DEBUG_puts("1cupsRasterReadPixels: Returning 0."); | |
ef416fc2 | 579 | return (0); |
590e44a4 MS |
580 | } |
581 | ||
582 | DEBUG_printf(("1cupsRasterReadPixels: compressed=%d, remaining=%u", r->compressed, r->remaining)); | |
ef416fc2 | 583 | |
ed486911 | 584 | if (!r->compressed) |
585 | { | |
586 | /* | |
587 | * Read without compression... | |
588 | */ | |
589 | ||
590 | r->remaining -= len / r->header.cupsBytesPerLine; | |
591 | ||
f14324a7 | 592 | if (cups_raster_io(r, p, len) < (ssize_t)len) |
590e44a4 MS |
593 | { |
594 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 595 | return (0); |
590e44a4 | 596 | } |
ed486911 | 597 | |
598 | /* | |
599 | * Swap bytes as needed... | |
600 | */ | |
601 | ||
c8fef167 MS |
602 | if (r->swapped && |
603 | (r->header.cupsBitsPerColor == 16 || | |
ed486911 | 604 | r->header.cupsBitsPerPixel == 12 || |
c8fef167 | 605 | r->header.cupsBitsPerPixel == 16)) |
ed486911 | 606 | cups_swap(p, len); |
607 | ||
608 | /* | |
609 | * Return... | |
610 | */ | |
611 | ||
590e44a4 MS |
612 | DEBUG_printf(("1cupsRasterReadPixels: Returning %u", len)); |
613 | ||
ed486911 | 614 | return (len); |
615 | } | |
616 | ||
617 | /* | |
618 | * Read compressed data... | |
619 | */ | |
620 | ||
621 | remaining = len; | |
622 | cupsBytesPerLine = r->header.cupsBytesPerLine; | |
ef416fc2 | 623 | |
624 | while (remaining > 0 && r->remaining > 0) | |
625 | { | |
626 | if (r->count == 0) | |
627 | { | |
628 | /* | |
629 | * Need to read a new row... | |
630 | */ | |
631 | ||
ed486911 | 632 | if (remaining == cupsBytesPerLine) |
ef416fc2 | 633 | ptr = p; |
634 | else | |
635 | ptr = r->pixels; | |
636 | ||
ed486911 | 637 | /* |
c8fef167 | 638 | * Read using a modified PackBits compression... |
ed486911 | 639 | */ |
ef416fc2 | 640 | |
ed486911 | 641 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 MS |
642 | { |
643 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 644 | return (0); |
590e44a4 | 645 | } |
ef416fc2 | 646 | |
7d5824d6 | 647 | r->count = (unsigned)byte + 1; |
ed486911 | 648 | |
649 | if (r->count > 1) | |
650 | ptr = r->pixels; | |
651 | ||
652 | temp = ptr; | |
7e86f2f6 | 653 | bytes = (ssize_t)cupsBytesPerLine; |
ed486911 | 654 | |
655 | while (bytes > 0) | |
ef416fc2 | 656 | { |
657 | /* | |
ed486911 | 658 | * Get a new repeat count... |
ef416fc2 | 659 | */ |
660 | ||
ed486911 | 661 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 MS |
662 | { |
663 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ef416fc2 | 664 | return (0); |
590e44a4 | 665 | } |
ef416fc2 | 666 | |
ed486911 | 667 | if (byte & 128) |
ef416fc2 | 668 | { |
669 | /* | |
ed486911 | 670 | * Copy N literal pixels... |
ef416fc2 | 671 | */ |
672 | ||
7e86f2f6 | 673 | count = (unsigned)(257 - byte) * r->bpp; |
ef416fc2 | 674 | |
7e86f2f6 MS |
675 | if (count > (unsigned)bytes) |
676 | count = (unsigned)bytes; | |
ef416fc2 | 677 | |
ed486911 | 678 | if (!cups_raster_read(r, temp, count)) |
590e44a4 MS |
679 | { |
680 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 681 | return (0); |
590e44a4 | 682 | } |
ef416fc2 | 683 | |
ed486911 | 684 | temp += count; |
685 | bytes -= count; | |
686 | } | |
687 | else | |
688 | { | |
689 | /* | |
690 | * Repeat the next N bytes... | |
691 | */ | |
ef416fc2 | 692 | |
7d5824d6 | 693 | count = ((unsigned)byte + 1) * r->bpp; |
7e86f2f6 MS |
694 | if (count > (unsigned)bytes) |
695 | count = (unsigned)bytes; | |
ef416fc2 | 696 | |
ed486911 | 697 | if (count < r->bpp) |
698 | break; | |
ef416fc2 | 699 | |
ed486911 | 700 | bytes -= count; |
ef416fc2 | 701 | |
ed486911 | 702 | if (!cups_raster_read(r, temp, r->bpp)) |
590e44a4 MS |
703 | { |
704 | DEBUG_puts("1cupsRasterReadPixels: Read error, returning 0."); | |
ed486911 | 705 | return (0); |
590e44a4 | 706 | } |
ef416fc2 | 707 | |
ed486911 | 708 | temp += r->bpp; |
709 | count -= r->bpp; | |
ef416fc2 | 710 | |
ed486911 | 711 | while (count > 0) |
712 | { | |
713 | memcpy(temp, temp - r->bpp, r->bpp); | |
ef416fc2 | 714 | temp += r->bpp; |
715 | count -= r->bpp; | |
ed486911 | 716 | } |
ef416fc2 | 717 | } |
718 | } | |
719 | ||
ed486911 | 720 | /* |
721 | * Swap bytes as needed... | |
722 | */ | |
723 | ||
f301802f | 724 | if ((r->header.cupsBitsPerColor == 16 || |
725 | r->header.cupsBitsPerPixel == 12 || | |
726 | r->header.cupsBitsPerPixel == 16) && | |
ed486911 | 727 | r->swapped) |
7e86f2f6 | 728 | cups_swap(ptr, (size_t)bytes); |
ef416fc2 | 729 | |
ed486911 | 730 | /* |
731 | * Update pointers... | |
732 | */ | |
ef416fc2 | 733 | |
ed486911 | 734 | if (remaining >= cupsBytesPerLine) |
ef416fc2 | 735 | { |
7e86f2f6 | 736 | bytes = (ssize_t)cupsBytesPerLine; |
ef416fc2 | 737 | r->pcurrent = r->pixels; |
738 | r->count --; | |
739 | r->remaining --; | |
740 | } | |
741 | else | |
742 | { | |
7e86f2f6 | 743 | bytes = (ssize_t)remaining; |
ef416fc2 | 744 | r->pcurrent = r->pixels + bytes; |
745 | } | |
746 | ||
ed486911 | 747 | /* |
748 | * Copy data as needed... | |
749 | */ | |
750 | ||
ef416fc2 | 751 | if (ptr != p) |
07623986 | 752 | memcpy(p, ptr, (size_t)bytes); |
ef416fc2 | 753 | } |
754 | else | |
755 | { | |
756 | /* | |
757 | * Copy fragment from buffer... | |
758 | */ | |
759 | ||
a2326b5b | 760 | if ((unsigned)(bytes = (int)(r->pend - r->pcurrent)) > remaining) |
7e86f2f6 | 761 | bytes = (ssize_t)remaining; |
ef416fc2 | 762 | |
07623986 | 763 | memcpy(p, r->pcurrent, (size_t)bytes); |
ef416fc2 | 764 | r->pcurrent += bytes; |
765 | ||
766 | if (r->pcurrent >= r->pend) | |
767 | { | |
768 | r->pcurrent = r->pixels; | |
769 | r->count --; | |
770 | r->remaining --; | |
771 | } | |
772 | } | |
773 | ||
7e86f2f6 | 774 | remaining -= (unsigned)bytes; |
ef416fc2 | 775 | p += bytes; |
776 | } | |
777 | ||
590e44a4 MS |
778 | DEBUG_printf(("1cupsRasterReadPixels: Returning %u", len)); |
779 | ||
ef416fc2 | 780 | return (len); |
781 | } | |
782 | ||
783 | ||
784 | /* | |
db0bd74a | 785 | * 'cupsRasterWriteHeader()' - Write a raster page header from a version 1 page |
b423cd4c | 786 | * header structure. |
db0bd74a MS |
787 | * |
788 | * This function is deprecated. Use @link cupsRasterWriteHeader2@ instead. | |
789 | * | |
790 | * @deprecated@ | |
ef416fc2 | 791 | */ |
f14324a7 | 792 | |
ef416fc2 | 793 | unsigned /* O - 1 on success, 0 on failure */ |
794 | cupsRasterWriteHeader( | |
795 | cups_raster_t *r, /* I - Raster stream */ | |
796 | cups_page_header_t *h) /* I - Raster page header */ | |
797 | { | |
c8fef167 | 798 | if (r == NULL || r->mode == CUPS_RASTER_READ) |
ef416fc2 | 799 | return (0); |
800 | ||
801 | /* | |
802 | * Make a copy of the header, and compute the number of raster | |
803 | * lines in the page image... | |
804 | */ | |
805 | ||
806 | memset(&(r->header), 0, sizeof(r->header)); | |
807 | memcpy(&(r->header), h, sizeof(cups_page_header_t)); | |
808 | ||
3c0659cd MS |
809 | if (!cups_raster_update(r)) |
810 | return (0); | |
ef416fc2 | 811 | |
812 | /* | |
813 | * Write the raster header... | |
814 | */ | |
815 | ||
c8fef167 MS |
816 | if (r->mode == CUPS_RASTER_WRITE_PWG) |
817 | { | |
818 | /* | |
10ddcf65 | 819 | * PWG raster data is always network byte order with much of the page header |
c8fef167 MS |
820 | * zeroed. |
821 | */ | |
822 | ||
823 | cups_page_header2_t fh; /* File page header */ | |
824 | ||
825 | memset(&fh, 0, sizeof(fh)); | |
10ddcf65 MS |
826 | |
827 | strlcpy(fh.MediaClass, "PwgRaster", sizeof(fh.MediaClass)); | |
828 | /* PwgRaster */ | |
829 | strlcpy(fh.MediaColor, r->header.MediaColor, sizeof(fh.MediaColor)); | |
830 | strlcpy(fh.MediaType, r->header.MediaType, sizeof(fh.MediaType)); | |
831 | strlcpy(fh.OutputType, r->header.OutputType, sizeof(fh.OutputType)); | |
832 | /* PrintContentType */ | |
833 | ||
834 | fh.CutMedia = htonl(r->header.CutMedia); | |
835 | fh.Duplex = htonl(r->header.Duplex); | |
836 | fh.HWResolution[0] = htonl(r->header.HWResolution[0]); | |
837 | fh.HWResolution[1] = htonl(r->header.HWResolution[1]); | |
838 | fh.ImagingBoundingBox[0] = htonl(r->header.ImagingBoundingBox[0]); | |
839 | fh.ImagingBoundingBox[1] = htonl(r->header.ImagingBoundingBox[1]); | |
840 | fh.ImagingBoundingBox[2] = htonl(r->header.ImagingBoundingBox[2]); | |
841 | fh.ImagingBoundingBox[3] = htonl(r->header.ImagingBoundingBox[3]); | |
842 | fh.InsertSheet = htonl(r->header.InsertSheet); | |
843 | fh.Jog = htonl(r->header.Jog); | |
844 | fh.LeadingEdge = htonl(r->header.LeadingEdge); | |
845 | fh.ManualFeed = htonl(r->header.ManualFeed); | |
846 | fh.MediaPosition = htonl(r->header.MediaPosition); | |
847 | fh.MediaWeight = htonl(r->header.MediaWeight); | |
848 | fh.NumCopies = htonl(r->header.NumCopies); | |
849 | fh.Orientation = htonl(r->header.Orientation); | |
850 | fh.PageSize[0] = htonl(r->header.PageSize[0]); | |
851 | fh.PageSize[1] = htonl(r->header.PageSize[1]); | |
852 | fh.Tumble = htonl(r->header.Tumble); | |
853 | fh.cupsWidth = htonl(r->header.cupsWidth); | |
854 | fh.cupsHeight = htonl(r->header.cupsHeight); | |
855 | fh.cupsBitsPerColor = htonl(r->header.cupsBitsPerColor); | |
856 | fh.cupsBitsPerPixel = htonl(r->header.cupsBitsPerPixel); | |
857 | fh.cupsBytesPerLine = htonl(r->header.cupsBytesPerLine); | |
858 | fh.cupsColorOrder = htonl(r->header.cupsColorOrder); | |
859 | fh.cupsColorSpace = htonl(r->header.cupsColorSpace); | |
860 | fh.cupsNumColors = htonl(r->header.cupsNumColors); | |
861 | fh.cupsInteger[0] = htonl(r->header.cupsInteger[0]); | |
862 | /* TotalPageCount */ | |
863 | fh.cupsInteger[1] = htonl(r->header.cupsInteger[1]); | |
864 | /* CrossFeedTransform */ | |
865 | fh.cupsInteger[2] = htonl(r->header.cupsInteger[2]); | |
866 | /* FeedTransform */ | |
867 | fh.cupsInteger[3] = htonl(r->header.cupsInteger[3]); | |
868 | /* ImageBoxLeft */ | |
869 | fh.cupsInteger[4] = htonl(r->header.cupsInteger[4]); | |
870 | /* ImageBoxTop */ | |
871 | fh.cupsInteger[5] = htonl(r->header.cupsInteger[5]); | |
872 | /* ImageBoxRight */ | |
873 | fh.cupsInteger[6] = htonl(r->header.cupsInteger[6]); | |
874 | /* ImageBoxBottom */ | |
875 | fh.cupsInteger[7] = htonl(r->header.cupsInteger[7]); | |
876 | /* BlackPrimary */ | |
877 | fh.cupsInteger[8] = htonl(r->header.cupsInteger[8]); | |
878 | /* PrintQuality */ | |
879 | fh.cupsInteger[14] = htonl(r->header.cupsInteger[14]); | |
880 | /* VendorIdentifier */ | |
881 | fh.cupsInteger[15] = htonl(r->header.cupsInteger[15]); | |
882 | /* VendorLength */ | |
883 | ||
cf1d7281 MS |
884 | void *dst = fh.cupsReal; /* Bypass bogus compiler warning */ |
885 | void *src = r->header.cupsReal; | |
886 | memcpy(dst, src, sizeof(fh.cupsReal) + sizeof(fh.cupsString)); | |
10ddcf65 MS |
887 | /* VendorData */ |
888 | ||
889 | strlcpy(fh.cupsRenderingIntent, r->header.cupsRenderingIntent, | |
890 | sizeof(fh.cupsRenderingIntent)); | |
891 | strlcpy(fh.cupsPageSizeName, r->header.cupsPageSizeName, | |
892 | sizeof(fh.cupsPageSizeName)); | |
c8fef167 | 893 | |
f14324a7 | 894 | return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh)); |
c8fef167 MS |
895 | } |
896 | else | |
f14324a7 | 897 | return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header)) |
c8fef167 | 898 | == sizeof(r->header)); |
ef416fc2 | 899 | } |
900 | ||
901 | ||
902 | /* | |
db0bd74a MS |
903 | * 'cupsRasterWriteHeader2()' - Write a raster page header from a version 2 |
904 | * page header structure. | |
905 | * | |
906 | * The page header can be initialized using @link cupsRasterInterpretPPD@. | |
ef416fc2 | 907 | * |
f3c17241 | 908 | * @since CUPS 1.2/OS X 10.5@ |
ef416fc2 | 909 | */ |
f14324a7 | 910 | |
ef416fc2 | 911 | unsigned /* O - 1 on success, 0 on failure */ |
912 | cupsRasterWriteHeader2( | |
913 | cups_raster_t *r, /* I - Raster stream */ | |
914 | cups_page_header2_t *h) /* I - Raster page header */ | |
915 | { | |
c8fef167 | 916 | if (r == NULL || r->mode == CUPS_RASTER_READ) |
ef416fc2 | 917 | return (0); |
918 | ||
919 | /* | |
920 | * Make a copy of the header, and compute the number of raster | |
921 | * lines in the page image... | |
922 | */ | |
923 | ||
924 | memcpy(&(r->header), h, sizeof(cups_page_header2_t)); | |
925 | ||
3c0659cd MS |
926 | if (!cups_raster_update(r)) |
927 | return (0); | |
ef416fc2 | 928 | |
929 | /* | |
930 | * Write the raster header... | |
931 | */ | |
932 | ||
c8fef167 MS |
933 | if (r->mode == CUPS_RASTER_WRITE_PWG) |
934 | { | |
935 | /* | |
936 | * PWG raster data is always network byte order with most of the page header | |
937 | * zeroed. | |
938 | */ | |
939 | ||
940 | cups_page_header2_t fh; /* File page header */ | |
941 | ||
942 | memset(&fh, 0, sizeof(fh)); | |
771bd8cb MS |
943 | strlcpy(fh.MediaClass, "PwgRaster", sizeof(fh.MediaClass)); |
944 | strlcpy(fh.MediaColor, r->header.MediaColor, sizeof(fh.MediaColor)); | |
945 | strlcpy(fh.MediaType, r->header.MediaType, sizeof(fh.MediaType)); | |
946 | strlcpy(fh.OutputType, r->header.OutputType, sizeof(fh.OutputType)); | |
947 | strlcpy(fh.cupsRenderingIntent, r->header.cupsRenderingIntent, | |
948 | sizeof(fh.cupsRenderingIntent)); | |
949 | strlcpy(fh.cupsPageSizeName, r->header.cupsPageSizeName, | |
950 | sizeof(fh.cupsPageSizeName)); | |
951 | ||
952 | fh.CutMedia = htonl(r->header.CutMedia); | |
953 | fh.Duplex = htonl(r->header.Duplex); | |
954 | fh.HWResolution[0] = htonl(r->header.HWResolution[0]); | |
955 | fh.HWResolution[1] = htonl(r->header.HWResolution[1]); | |
956 | fh.ImagingBoundingBox[0] = htonl(r->header.ImagingBoundingBox[0]); | |
957 | fh.ImagingBoundingBox[1] = htonl(r->header.ImagingBoundingBox[1]); | |
958 | fh.ImagingBoundingBox[2] = htonl(r->header.ImagingBoundingBox[2]); | |
959 | fh.ImagingBoundingBox[3] = htonl(r->header.ImagingBoundingBox[3]); | |
960 | fh.InsertSheet = htonl(r->header.InsertSheet); | |
961 | fh.Jog = htonl(r->header.Jog); | |
962 | fh.LeadingEdge = htonl(r->header.LeadingEdge); | |
963 | fh.ManualFeed = htonl(r->header.ManualFeed); | |
964 | fh.MediaPosition = htonl(r->header.MediaPosition); | |
965 | fh.MediaWeight = htonl(r->header.MediaWeight); | |
966 | fh.NumCopies = htonl(r->header.NumCopies); | |
967 | fh.Orientation = htonl(r->header.Orientation); | |
968 | fh.PageSize[0] = htonl(r->header.PageSize[0]); | |
969 | fh.PageSize[1] = htonl(r->header.PageSize[1]); | |
970 | fh.Tumble = htonl(r->header.Tumble); | |
971 | fh.cupsWidth = htonl(r->header.cupsWidth); | |
972 | fh.cupsHeight = htonl(r->header.cupsHeight); | |
973 | fh.cupsBitsPerColor = htonl(r->header.cupsBitsPerColor); | |
974 | fh.cupsBitsPerPixel = htonl(r->header.cupsBitsPerPixel); | |
975 | fh.cupsBytesPerLine = htonl(r->header.cupsBytesPerLine); | |
976 | fh.cupsColorOrder = htonl(r->header.cupsColorOrder); | |
977 | fh.cupsColorSpace = htonl(r->header.cupsColorSpace); | |
978 | fh.cupsNumColors = htonl(r->header.cupsNumColors); | |
979 | fh.cupsInteger[0] = htonl(r->header.cupsInteger[0]); | |
980 | fh.cupsInteger[1] = htonl(r->header.cupsInteger[1]); | |
981 | fh.cupsInteger[2] = htonl(r->header.cupsInteger[2]); | |
89665c51 MS |
982 | fh.cupsInteger[3] = htonl((unsigned)(r->header.cupsImagingBBox[0] * r->header.HWResolution[0] / 72.0)); |
983 | fh.cupsInteger[4] = htonl((unsigned)(r->header.cupsImagingBBox[1] * r->header.HWResolution[1] / 72.0)); | |
984 | fh.cupsInteger[5] = htonl((unsigned)(r->header.cupsImagingBBox[2] * r->header.HWResolution[0] / 72.0)); | |
985 | fh.cupsInteger[6] = htonl((unsigned)(r->header.cupsImagingBBox[3] * r->header.HWResolution[1] / 72.0)); | |
771bd8cb | 986 | fh.cupsInteger[7] = htonl(0xffffff); |
c8fef167 | 987 | |
f14324a7 | 988 | return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh)); |
c8fef167 MS |
989 | } |
990 | else | |
f14324a7 | 991 | return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header)) |
c8fef167 | 992 | == sizeof(r->header)); |
ef416fc2 | 993 | } |
994 | ||
995 | ||
996 | /* | |
997 | * 'cupsRasterWritePixels()' - Write raster pixels. | |
79e1d494 MS |
998 | * |
999 | * For best performance, filters should write one or more whole lines. | |
1000 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
1001 | * the line buffer and as the number of bytes to write. | |
ef416fc2 | 1002 | */ |
1003 | ||
1004 | unsigned /* O - Number of bytes written */ | |
1005 | cupsRasterWritePixels(cups_raster_t *r, /* I - Raster stream */ | |
1006 | unsigned char *p, /* I - Bytes to write */ | |
1007 | unsigned len)/* I - Number of bytes to write */ | |
1008 | { | |
7e86f2f6 | 1009 | ssize_t bytes; /* Bytes read */ |
f7deaa1a | 1010 | unsigned remaining; /* Bytes remaining */ |
1011 | ||
1012 | ||
807315e6 | 1013 | DEBUG_printf(("cupsRasterWritePixels(r=%p, p=%p, len=%u), remaining=%u", (void *)r, (void *)p, len, r->remaining)); |
f301802f | 1014 | |
c8fef167 | 1015 | if (r == NULL || r->mode == CUPS_RASTER_READ || r->remaining == 0) |
ef416fc2 | 1016 | return (0); |
1017 | ||
f7deaa1a | 1018 | if (!r->compressed) |
1019 | { | |
1020 | /* | |
c8fef167 MS |
1021 | * Without compression, just write the raster data raw unless the data needs |
1022 | * to be swapped... | |
f7deaa1a | 1023 | */ |
1024 | ||
1025 | r->remaining -= len / r->header.cupsBytesPerLine; | |
1026 | ||
c8fef167 MS |
1027 | if (r->swapped && |
1028 | (r->header.cupsBitsPerColor == 16 || | |
1029 | r->header.cupsBitsPerPixel == 12 || | |
1030 | r->header.cupsBitsPerPixel == 16)) | |
1031 | { | |
1032 | unsigned char *bufptr; /* Pointer into write buffer */ | |
1033 | unsigned count; /* Remaining count */ | |
1034 | ||
1035 | /* | |
1036 | * Allocate a write buffer as needed... | |
1037 | */ | |
1038 | ||
1039 | if ((size_t)len > r->bufsize) | |
1040 | { | |
1041 | if (r->buffer) | |
1042 | bufptr = realloc(r->buffer, len); | |
1043 | else | |
1044 | bufptr = malloc(len); | |
1045 | ||
1046 | if (!bufptr) | |
1047 | return (0); | |
1048 | ||
1049 | r->buffer = bufptr; | |
1050 | r->bufsize = len; | |
1051 | } | |
1052 | ||
1053 | /* | |
1054 | * Byte swap the pixels... | |
1055 | */ | |
1056 | ||
1057 | for (bufptr = r->buffer, count = len; count > 1; count -= 2, bufptr += 2) | |
1058 | { | |
1059 | bufptr[1] = *p++; | |
1060 | bufptr[0] = *p++; | |
1061 | } | |
1062 | ||
1063 | if (count) /* This should never happen... */ | |
1064 | *bufptr = *p; | |
1065 | ||
1066 | /* | |
1067 | * Write the byte-swapped buffer... | |
1068 | */ | |
1069 | ||
a5425f93 | 1070 | bytes = cups_raster_io(r, r->buffer, len); |
c8fef167 MS |
1071 | } |
1072 | else | |
a5425f93 MS |
1073 | bytes = cups_raster_io(r, p, len); |
1074 | ||
1075 | if (bytes < len) | |
1076 | return (0); | |
1077 | else | |
1078 | return (len); | |
f7deaa1a | 1079 | } |
1080 | ||
ed486911 | 1081 | /* |
f7deaa1a | 1082 | * Otherwise, compress each line... |
ed486911 | 1083 | */ |
ef416fc2 | 1084 | |
7e86f2f6 | 1085 | for (remaining = len; remaining > 0; remaining -= (unsigned)bytes, p += bytes) |
f7deaa1a | 1086 | { |
1087 | /* | |
1088 | * Figure out the number of remaining bytes on the current line... | |
1089 | */ | |
1090 | ||
7e86f2f6 MS |
1091 | if ((bytes = (ssize_t)remaining) > (ssize_t)(r->pend - r->pcurrent)) |
1092 | bytes = (ssize_t)(r->pend - r->pcurrent); | |
f7deaa1a | 1093 | |
1094 | if (r->count > 0) | |
1095 | { | |
1096 | /* | |
1097 | * Check to see if this line is the same as the previous line... | |
1098 | */ | |
1099 | ||
7e86f2f6 | 1100 | if (memcmp(p, r->pcurrent, (size_t)bytes)) |
f7deaa1a | 1101 | { |
a5425f93 | 1102 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 1103 | return (0); |
1104 | ||
1105 | r->count = 0; | |
1106 | } | |
1107 | else | |
1108 | { | |
1109 | /* | |
1110 | * Mark more bytes as the same... | |
1111 | */ | |
1112 | ||
1113 | r->pcurrent += bytes; | |
1114 | ||
1115 | if (r->pcurrent >= r->pend) | |
1116 | { | |
1117 | /* | |
1118 | * Increase the repeat count... | |
1119 | */ | |
1120 | ||
1121 | r->count ++; | |
1122 | r->pcurrent = r->pixels; | |
1123 | ||
1124 | /* | |
1125 | * Flush out this line if it is the last one... | |
1126 | */ | |
1127 | ||
1128 | r->remaining --; | |
1129 | ||
1130 | if (r->remaining == 0) | |
a5425f93 MS |
1131 | { |
1132 | if (cups_raster_write(r, r->pixels) <= 0) | |
1133 | return (0); | |
1134 | else | |
1135 | return (len); | |
1136 | } | |
f7deaa1a | 1137 | else if (r->count == 256) |
1138 | { | |
a5425f93 | 1139 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 1140 | return (0); |
f301802f | 1141 | |
f7deaa1a | 1142 | r->count = 0; |
1143 | } | |
1144 | } | |
1145 | ||
1146 | continue; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | if (r->count == 0) | |
1151 | { | |
1152 | /* | |
1153 | * Copy the raster data to the buffer... | |
1154 | */ | |
1155 | ||
07623986 | 1156 | memcpy(r->pcurrent, p, (size_t)bytes); |
f7deaa1a | 1157 | |
1158 | r->pcurrent += bytes; | |
1159 | ||
1160 | if (r->pcurrent >= r->pend) | |
1161 | { | |
1162 | /* | |
1163 | * Increase the repeat count... | |
1164 | */ | |
1165 | ||
1166 | r->count ++; | |
1167 | r->pcurrent = r->pixels; | |
1168 | ||
1169 | /* | |
1170 | * Flush out this line if it is the last one... | |
1171 | */ | |
1172 | ||
1173 | r->remaining --; | |
1174 | ||
1175 | if (r->remaining == 0) | |
a5425f93 MS |
1176 | { |
1177 | if (cups_raster_write(r, r->pixels) <= 0) | |
1178 | return (0); | |
1179 | } | |
f7deaa1a | 1180 | } |
1181 | } | |
1182 | } | |
1183 | ||
1184 | return (len); | |
ef416fc2 | 1185 | } |
1186 | ||
1187 | ||
1188 | /* | |
1189 | * 'cups_raster_read_header()' - Read a raster page header. | |
1190 | */ | |
1191 | ||
1192 | static unsigned /* O - 1 on success, 0 on fail */ | |
1193 | cups_raster_read_header( | |
1194 | cups_raster_t *r) /* I - Raster stream */ | |
1195 | { | |
7e86f2f6 | 1196 | size_t len; /* Length for read/swap */ |
ef416fc2 | 1197 | |
1198 | ||
807315e6 | 1199 | DEBUG_printf(("3cups_raster_read_header(r=%p), r->mode=%d", (void *)r, r ? r->mode : 0)); |
590e44a4 | 1200 | |
ef416fc2 | 1201 | if (r == NULL || r->mode != CUPS_RASTER_READ) |
1202 | return (0); | |
1203 | ||
d9564ec7 MS |
1204 | DEBUG_printf(("4cups_raster_read_header: r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); |
1205 | ||
ef416fc2 | 1206 | /* |
1207 | * Get the length of the raster header... | |
1208 | */ | |
1209 | ||
1210 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1) | |
1211 | len = sizeof(cups_page_header_t); | |
1212 | else | |
1213 | len = sizeof(cups_page_header2_t); | |
1214 | ||
590e44a4 MS |
1215 | DEBUG_printf(("4cups_raster_read_header: len=%d", (int)len)); |
1216 | ||
ef416fc2 | 1217 | /* |
1218 | * Read the header... | |
1219 | */ | |
1220 | ||
1221 | memset(&(r->header), 0, sizeof(r->header)); | |
1222 | ||
7e86f2f6 | 1223 | if (cups_raster_read(r, (unsigned char *)&(r->header), len) < (ssize_t)len) |
590e44a4 | 1224 | { |
d9564ec7 | 1225 | DEBUG_printf(("4cups_raster_read_header: EOF, r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); |
ef416fc2 | 1226 | return (0); |
590e44a4 | 1227 | } |
ef416fc2 | 1228 | |
1229 | /* | |
1230 | * Swap bytes as needed... | |
1231 | */ | |
1232 | ||
ed486911 | 1233 | if (r->swapped) |
09a101d6 | 1234 | { |
1235 | unsigned *s, /* Current word */ | |
1236 | temp; /* Temporary copy */ | |
1237 | ||
1238 | ||
590e44a4 | 1239 | DEBUG_puts("4cups_raster_read_header: Swapping header bytes."); |
09a101d6 | 1240 | |
1241 | for (len = 81, s = &(r->header.AdvanceDistance); | |
ef416fc2 | 1242 | len > 0; |
1243 | len --, s ++) | |
09a101d6 | 1244 | { |
09a101d6 | 1245 | temp = *s; |
1246 | *s = ((temp & 0xff) << 24) | | |
1247 | ((temp & 0xff00) << 8) | | |
1248 | ((temp & 0xff0000) >> 8) | | |
1249 | ((temp & 0xff000000) >> 24); | |
1250 | ||
590e44a4 | 1251 | DEBUG_printf(("4cups_raster_read_header: %08x => %08x", temp, *s)); |
09a101d6 | 1252 | } |
1253 | } | |
ef416fc2 | 1254 | |
1255 | /* | |
1256 | * Update the header and row count... | |
1257 | */ | |
1258 | ||
3c0659cd MS |
1259 | if (!cups_raster_update(r)) |
1260 | return (0); | |
ef416fc2 | 1261 | |
590e44a4 MS |
1262 | 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)); |
1263 | ||
3a555a4f | 1264 | return (r->header.cupsBitsPerPixel > 0 && r->header.cupsBitsPerPixel <= 240 && r->header.cupsBitsPerColor > 0 && r->header.cupsBitsPerColor <= 16 && r->header.cupsBytesPerLine > 0 && r->header.cupsBytesPerLine <= 0x7fffffff && r->header.cupsHeight != 0 && (r->header.cupsBytesPerLine % r->bpp) == 0); |
ef416fc2 | 1265 | } |
1266 | ||
1267 | ||
f14324a7 MS |
1268 | /* |
1269 | * 'cups_raster_io()' - Read/write bytes from a context, handling interruptions. | |
1270 | */ | |
1271 | ||
7e86f2f6 | 1272 | static ssize_t /* O - Bytes read/write or -1 */ |
83e08001 | 1273 | cups_raster_io(cups_raster_t *r, /* I - Raster stream */ |
7e86f2f6 MS |
1274 | unsigned char *buf, /* I - Buffer for read/write */ |
1275 | size_t bytes) /* I - Number of bytes to read/write */ | |
f14324a7 | 1276 | { |
7e86f2f6 MS |
1277 | ssize_t count, /* Number of bytes read/written */ |
1278 | total; /* Total bytes read/written */ | |
f14324a7 MS |
1279 | |
1280 | ||
807315e6 | 1281 | DEBUG_printf(("5cups_raster_io(r=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)r, (void *)buf, CUPS_LLCAST bytes)); |
f14324a7 | 1282 | |
7e86f2f6 | 1283 | for (total = 0; total < (ssize_t)bytes; total += count, buf += count) |
f14324a7 | 1284 | { |
7e86f2f6 | 1285 | count = (*r->iocb)(r->ctx, buf, bytes - (size_t)total); |
f14324a7 | 1286 | |
a5425f93 | 1287 | DEBUG_printf(("6cups_raster_io: count=%d, total=%d", (int)count, (int)total)); |
f14324a7 | 1288 | if (count == 0) |
a5425f93 MS |
1289 | { |
1290 | DEBUG_puts("6cups_raster_io: Returning 0."); | |
f14324a7 | 1291 | return (0); |
a5425f93 | 1292 | } |
f14324a7 | 1293 | else if (count < 0) |
a5425f93 MS |
1294 | { |
1295 | DEBUG_puts("6cups_raster_io: Returning -1 on error."); | |
f14324a7 | 1296 | return (-1); |
a5425f93 | 1297 | } |
d9564ec7 MS |
1298 | |
1299 | #ifdef DEBUG | |
1300 | r->iocount += (size_t)count; | |
1301 | #endif /* DEBUG */ | |
f14324a7 MS |
1302 | } |
1303 | ||
a5425f93 MS |
1304 | DEBUG_printf(("6cups_raster_io: Returning " CUPS_LLFMT ".", CUPS_LLCAST total)); |
1305 | ||
7e86f2f6 | 1306 | return (total); |
f14324a7 MS |
1307 | } |
1308 | ||
1309 | ||
ed486911 | 1310 | /* |
1311 | * 'cups_raster_read()' - Read through the raster buffer. | |
1312 | */ | |
1313 | ||
7e86f2f6 | 1314 | static ssize_t /* O - Number of bytes read */ |
ed486911 | 1315 | cups_raster_read(cups_raster_t *r, /* I - Raster stream */ |
1316 | unsigned char *buf, /* I - Buffer */ | |
7e86f2f6 | 1317 | size_t bytes) /* I - Number of bytes to read */ |
ed486911 | 1318 | { |
7e86f2f6 | 1319 | ssize_t count, /* Number of bytes read */ |
ed486911 | 1320 | remaining, /* Remaining bytes in buffer */ |
1321 | total; /* Total bytes read */ | |
1322 | ||
1323 | ||
807315e6 | 1324 | DEBUG_printf(("5cups_raster_read(r=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)r, (void *)buf, CUPS_LLCAST bytes)); |
ed486911 | 1325 | |
1326 | if (!r->compressed) | |
f14324a7 | 1327 | return (cups_raster_io(r, buf, bytes)); |
ed486911 | 1328 | |
1329 | /* | |
1330 | * Allocate a read buffer as needed... | |
1331 | */ | |
1332 | ||
7e86f2f6 | 1333 | count = (ssize_t)(2 * r->header.cupsBytesPerLine); |
d9564ec7 MS |
1334 | if (count < 65536) |
1335 | count = 65536; | |
ed486911 | 1336 | |
c8fef167 | 1337 | if ((size_t)count > r->bufsize) |
ed486911 | 1338 | { |
7e86f2f6 | 1339 | ssize_t offset = r->bufptr - r->buffer; |
a2326b5b | 1340 | /* Offset to current start of buffer */ |
7e86f2f6 | 1341 | ssize_t end = r->bufend - r->buffer;/* Offset to current end of buffer */ |
ed486911 | 1342 | unsigned char *rptr; /* Pointer in read buffer */ |
1343 | ||
1344 | if (r->buffer) | |
7e86f2f6 | 1345 | rptr = realloc(r->buffer, (size_t)count); |
ed486911 | 1346 | else |
7e86f2f6 | 1347 | rptr = malloc((size_t)count); |
ed486911 | 1348 | |
1349 | if (!rptr) | |
1350 | return (0); | |
1351 | ||
1352 | r->buffer = rptr; | |
1353 | r->bufptr = rptr + offset; | |
1354 | r->bufend = rptr + end; | |
7e86f2f6 | 1355 | r->bufsize = (size_t)count; |
ed486911 | 1356 | } |
1357 | ||
1358 | /* | |
1359 | * Loop until we have read everything... | |
1360 | */ | |
1361 | ||
a2326b5b | 1362 | for (total = 0, remaining = (int)(r->bufend - r->bufptr); |
7e86f2f6 | 1363 | total < (ssize_t)bytes; |
ed486911 | 1364 | total += count, buf += count) |
1365 | { | |
7e86f2f6 | 1366 | count = (ssize_t)bytes - total; |
ed486911 | 1367 | |
807315e6 | 1368 | DEBUG_printf(("6cups_raster_read: count=" CUPS_LLFMT ", remaining=" CUPS_LLFMT ", buf=%p, bufptr=%p, bufend=%p", CUPS_LLCAST count, CUPS_LLCAST remaining, (void *)buf, (void *)r->bufptr, (void *)r->bufend)); |
ed486911 | 1369 | |
1370 | if (remaining == 0) | |
1371 | { | |
1372 | if (count < 16) | |
1373 | { | |
1374 | /* | |
1375 | * Read into the raster buffer and then copy... | |
1376 | */ | |
1377 | ||
c8fef167 | 1378 | remaining = (*r->iocb)(r->ctx, r->buffer, r->bufsize); |
ed486911 | 1379 | if (remaining <= 0) |
1380 | return (0); | |
1381 | ||
1382 | r->bufptr = r->buffer; | |
1383 | r->bufend = r->buffer + remaining; | |
d9564ec7 MS |
1384 | |
1385 | #ifdef DEBUG | |
1386 | r->iocount += (size_t)remaining; | |
1387 | #endif /* DEBUG */ | |
ed486911 | 1388 | } |
1389 | else | |
1390 | { | |
1391 | /* | |
1392 | * Read directly into "buf"... | |
1393 | */ | |
1394 | ||
7e86f2f6 | 1395 | count = (*r->iocb)(r->ctx, buf, (size_t)count); |
ed486911 | 1396 | |
1397 | if (count <= 0) | |
1398 | return (0); | |
1399 | ||
d9564ec7 MS |
1400 | #ifdef DEBUG |
1401 | r->iocount += (size_t)count; | |
1402 | #endif /* DEBUG */ | |
1403 | ||
ed486911 | 1404 | continue; |
1405 | } | |
1406 | } | |
1407 | ||
1408 | /* | |
1409 | * Copy bytes from raster buffer to "buf"... | |
1410 | */ | |
1411 | ||
1412 | if (count > remaining) | |
1413 | count = remaining; | |
1414 | ||
1415 | if (count == 1) | |
1416 | { | |
1417 | /* | |
1418 | * Copy 1 byte... | |
1419 | */ | |
1420 | ||
1421 | *buf = *(r->bufptr)++; | |
1422 | remaining --; | |
1423 | } | |
1424 | else if (count < 128) | |
1425 | { | |
1426 | /* | |
1427 | * Copy up to 127 bytes without using memcpy(); this is | |
1428 | * faster because it avoids an extra function call and is | |
1429 | * often further optimized by the compiler... | |
1430 | */ | |
1431 | ||
1432 | unsigned char *bufptr; /* Temporary buffer pointer */ | |
1433 | ||
ed486911 | 1434 | remaining -= count; |
1435 | ||
1436 | for (bufptr = r->bufptr; count > 0; count --, total ++) | |
1437 | *buf++ = *bufptr++; | |
1438 | ||
1439 | r->bufptr = bufptr; | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | /* | |
1444 | * Use memcpy() for a large read... | |
1445 | */ | |
1446 | ||
07623986 | 1447 | memcpy(buf, r->bufptr, (size_t)count); |
ed486911 | 1448 | r->bufptr += count; |
1449 | remaining -= count; | |
1450 | } | |
1451 | } | |
1452 | ||
590e44a4 MS |
1453 | DEBUG_printf(("6cups_raster_read: Returning %ld", (long)total)); |
1454 | ||
ed486911 | 1455 | return (total); |
1456 | } | |
1457 | ||
1458 | ||
ef416fc2 | 1459 | /* |
1460 | * 'cups_raster_update()' - Update the raster header and row count for the | |
1461 | * current page. | |
1462 | */ | |
1463 | ||
3c0659cd | 1464 | static int /* O - 1 on success, 0 on failure */ |
ef416fc2 | 1465 | cups_raster_update(cups_raster_t *r) /* I - Raster stream */ |
1466 | { | |
f301802f | 1467 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1 || |
1468 | r->header.cupsNumColors == 0) | |
ef416fc2 | 1469 | { |
1470 | /* | |
1471 | * Set the "cupsNumColors" field according to the colorspace... | |
1472 | */ | |
1473 | ||
1474 | switch (r->header.cupsColorSpace) | |
1475 | { | |
1476 | case CUPS_CSPACE_W : | |
1477 | case CUPS_CSPACE_K : | |
1478 | case CUPS_CSPACE_WHITE : | |
1479 | case CUPS_CSPACE_GOLD : | |
1480 | case CUPS_CSPACE_SILVER : | |
c7017ecc | 1481 | case CUPS_CSPACE_SW : |
ef416fc2 | 1482 | r->header.cupsNumColors = 1; |
1483 | break; | |
1484 | ||
ef416fc2 | 1485 | case CUPS_CSPACE_RGB : |
1486 | case CUPS_CSPACE_CMY : | |
1487 | case CUPS_CSPACE_YMC : | |
1488 | case CUPS_CSPACE_CIEXYZ : | |
1489 | case CUPS_CSPACE_CIELab : | |
c7017ecc MS |
1490 | case CUPS_CSPACE_SRGB : |
1491 | case CUPS_CSPACE_ADOBERGB : | |
f301802f | 1492 | case CUPS_CSPACE_ICC1 : |
1493 | case CUPS_CSPACE_ICC2 : | |
ef416fc2 | 1494 | case CUPS_CSPACE_ICC3 : |
f301802f | 1495 | case CUPS_CSPACE_ICC4 : |
1496 | case CUPS_CSPACE_ICC5 : | |
1497 | case CUPS_CSPACE_ICC6 : | |
1498 | case CUPS_CSPACE_ICC7 : | |
1499 | case CUPS_CSPACE_ICC8 : | |
1500 | case CUPS_CSPACE_ICC9 : | |
1501 | case CUPS_CSPACE_ICCA : | |
1502 | case CUPS_CSPACE_ICCB : | |
1503 | case CUPS_CSPACE_ICCC : | |
1504 | case CUPS_CSPACE_ICCD : | |
1505 | case CUPS_CSPACE_ICCE : | |
1506 | case CUPS_CSPACE_ICCF : | |
ef416fc2 | 1507 | r->header.cupsNumColors = 3; |
1508 | break; | |
1509 | ||
1510 | case CUPS_CSPACE_RGBA : | |
1511 | case CUPS_CSPACE_RGBW : | |
1512 | case CUPS_CSPACE_CMYK : | |
1513 | case CUPS_CSPACE_YMCK : | |
1514 | case CUPS_CSPACE_KCMY : | |
1515 | case CUPS_CSPACE_GMCK : | |
1516 | case CUPS_CSPACE_GMCS : | |
ef416fc2 | 1517 | r->header.cupsNumColors = 4; |
1518 | break; | |
1519 | ||
1520 | case CUPS_CSPACE_KCMYcm : | |
1521 | if (r->header.cupsBitsPerPixel < 8) | |
1522 | r->header.cupsNumColors = 6; | |
1523 | else | |
1524 | r->header.cupsNumColors = 4; | |
1525 | break; | |
c7017ecc MS |
1526 | |
1527 | case CUPS_CSPACE_DEVICE1 : | |
1528 | case CUPS_CSPACE_DEVICE2 : | |
1529 | case CUPS_CSPACE_DEVICE3 : | |
1530 | case CUPS_CSPACE_DEVICE4 : | |
1531 | case CUPS_CSPACE_DEVICE5 : | |
1532 | case CUPS_CSPACE_DEVICE6 : | |
1533 | case CUPS_CSPACE_DEVICE7 : | |
1534 | case CUPS_CSPACE_DEVICE8 : | |
1535 | case CUPS_CSPACE_DEVICE9 : | |
1536 | case CUPS_CSPACE_DEVICEA : | |
1537 | case CUPS_CSPACE_DEVICEB : | |
1538 | case CUPS_CSPACE_DEVICEC : | |
1539 | case CUPS_CSPACE_DEVICED : | |
1540 | case CUPS_CSPACE_DEVICEE : | |
1541 | case CUPS_CSPACE_DEVICEF : | |
1542 | r->header.cupsNumColors = r->header.cupsColorSpace - | |
1543 | CUPS_CSPACE_DEVICE1 + 1; | |
1544 | break; | |
3c0659cd MS |
1545 | |
1546 | default : | |
1547 | /* Unknown color space */ | |
1548 | return (0); | |
ef416fc2 | 1549 | } |
1550 | } | |
1551 | ||
1552 | /* | |
1553 | * Set the number of bytes per pixel/color... | |
1554 | */ | |
1555 | ||
1556 | if (r->header.cupsColorOrder == CUPS_ORDER_CHUNKED) | |
1557 | r->bpp = (r->header.cupsBitsPerPixel + 7) / 8; | |
1558 | else | |
1559 | r->bpp = (r->header.cupsBitsPerColor + 7) / 8; | |
1560 | ||
33076d24 MS |
1561 | if (r->bpp == 0) |
1562 | r->bpp = 1; | |
1563 | ||
ef416fc2 | 1564 | /* |
1565 | * Set the number of remaining rows... | |
1566 | */ | |
1567 | ||
1568 | if (r->header.cupsColorOrder == CUPS_ORDER_PLANAR) | |
1569 | r->remaining = r->header.cupsHeight * r->header.cupsNumColors; | |
1570 | else | |
1571 | r->remaining = r->header.cupsHeight; | |
1572 | ||
1573 | /* | |
ed486911 | 1574 | * Allocate the compression buffer... |
ef416fc2 | 1575 | */ |
1576 | ||
ed486911 | 1577 | if (r->compressed) |
1578 | { | |
1579 | if (r->pixels != NULL) | |
1580 | free(r->pixels); | |
ef416fc2 | 1581 | |
b9ce33c5 MS |
1582 | if ((r->pixels = calloc(r->header.cupsBytesPerLine, 1)) == NULL) |
1583 | { | |
1584 | r->pcurrent = NULL; | |
1585 | r->pend = NULL; | |
1586 | r->count = 0; | |
1587 | ||
1588 | return (0); | |
1589 | } | |
1590 | ||
ed486911 | 1591 | r->pcurrent = r->pixels; |
1592 | r->pend = r->pixels + r->header.cupsBytesPerLine; | |
1593 | r->count = 0; | |
1594 | } | |
58e9f268 MS |
1595 | |
1596 | return (1); | |
ef416fc2 | 1597 | } |
1598 | ||
1599 | ||
f7deaa1a | 1600 | /* |
1601 | * 'cups_raster_write()' - Write a row of compressed raster data... | |
1602 | */ | |
1603 | ||
7e86f2f6 | 1604 | static ssize_t /* O - Number of bytes written */ |
f7deaa1a | 1605 | cups_raster_write( |
1606 | cups_raster_t *r, /* I - Raster stream */ | |
1607 | const unsigned char *pixels) /* I - Pixel data to write */ | |
1608 | { | |
1609 | const unsigned char *start, /* Start of sequence */ | |
1610 | *ptr, /* Current pointer in sequence */ | |
1611 | *pend, /* End of raster buffer */ | |
1612 | *plast; /* Pointer to last pixel */ | |
1613 | unsigned char *wptr; /* Pointer into write buffer */ | |
7e86f2f6 | 1614 | unsigned bpp, /* Bytes per pixel */ |
1f0275e3 | 1615 | count; /* Count */ |
f7deaa1a | 1616 | |
1617 | ||
807315e6 | 1618 | DEBUG_printf(("3cups_raster_write(r=%p, pixels=%p)", (void *)r, (void *)pixels)); |
f7deaa1a | 1619 | |
1620 | /* | |
1621 | * Allocate a write buffer as needed... | |
1622 | */ | |
1623 | ||
1624 | count = r->header.cupsBytesPerLine * 2; | |
a5425f93 MS |
1625 | if (count < 65536) |
1626 | count = 65536; | |
f8e5a7b4 | 1627 | |
c8fef167 | 1628 | if ((size_t)count > r->bufsize) |
f7deaa1a | 1629 | { |
1630 | if (r->buffer) | |
1631 | wptr = realloc(r->buffer, count); | |
1632 | else | |
1633 | wptr = malloc(count); | |
1634 | ||
1635 | if (!wptr) | |
a5425f93 MS |
1636 | { |
1637 | DEBUG_printf(("4cups_raster_write: Unable to allocate " CUPS_LLFMT " bytes for raster buffer: %s", CUPS_LLCAST count, strerror(errno))); | |
f7deaa1a | 1638 | return (-1); |
a5425f93 | 1639 | } |
f7deaa1a | 1640 | |
1641 | r->buffer = wptr; | |
1642 | r->bufsize = count; | |
1643 | } | |
1644 | ||
1645 | /* | |
1646 | * Write the row repeat count... | |
1647 | */ | |
1648 | ||
1649 | bpp = r->bpp; | |
1650 | pend = pixels + r->header.cupsBytesPerLine; | |
1651 | plast = pend - bpp; | |
1652 | wptr = r->buffer; | |
7e86f2f6 | 1653 | *wptr++ = (unsigned char)(r->count - 1); |
f7deaa1a | 1654 | |
1655 | /* | |
07ed0e9a | 1656 | * Write using a modified PackBits compression... |
f7deaa1a | 1657 | */ |
1658 | ||
1659 | for (ptr = pixels; ptr < pend;) | |
1660 | { | |
1661 | start = ptr; | |
1662 | ptr += bpp; | |
1663 | ||
1664 | if (ptr == pend) | |
1665 | { | |
1666 | /* | |
1667 | * Encode a single pixel at the end... | |
1668 | */ | |
1669 | ||
1670 | *wptr++ = 0; | |
1671 | for (count = bpp; count > 0; count --) | |
1672 | *wptr++ = *start++; | |
1673 | } | |
1674 | else if (!memcmp(start, ptr, bpp)) | |
1675 | { | |
1676 | /* | |
1677 | * Encode a sequence of repeating pixels... | |
1678 | */ | |
1679 | ||
1680 | for (count = 2; count < 128 && ptr < plast; count ++, ptr += bpp) | |
1681 | if (memcmp(ptr, ptr + bpp, bpp)) | |
1682 | break; | |
1683 | ||
7e86f2f6 | 1684 | *wptr++ = (unsigned char)(count - 1); |
f7deaa1a | 1685 | for (count = bpp; count > 0; count --) |
1686 | *wptr++ = *ptr++; | |
1687 | } | |
1688 | else | |
1689 | { | |
1690 | /* | |
1691 | * Encode a sequence of non-repeating pixels... | |
1692 | */ | |
1693 | ||
07ed0e9a | 1694 | for (count = 1; count < 128 && ptr < plast; count ++, ptr += bpp) |
f7deaa1a | 1695 | if (!memcmp(ptr, ptr + bpp, bpp)) |
1696 | break; | |
1697 | ||
1698 | if (ptr >= plast && count < 128) | |
1699 | { | |
1700 | count ++; | |
1701 | ptr += bpp; | |
1702 | } | |
f14324a7 | 1703 | |
7e86f2f6 | 1704 | *wptr++ = (unsigned char)(257 - count); |
f7deaa1a | 1705 | |
1706 | count *= bpp; | |
1707 | memcpy(wptr, start, count); | |
1708 | wptr += count; | |
1709 | } | |
1710 | } | |
1711 | ||
a5425f93 MS |
1712 | DEBUG_printf(("4cups_raster_write: Writing " CUPS_LLFMT " bytes.", CUPS_LLCAST (wptr - r->buffer))); |
1713 | ||
7e86f2f6 | 1714 | return (cups_raster_io(r, r->buffer, (size_t)(wptr - r->buffer))); |
f7deaa1a | 1715 | } |
1716 | ||
1717 | ||
ef416fc2 | 1718 | /* |
c8fef167 | 1719 | * 'cups_read_fd()' - Read bytes from a file. |
ef416fc2 | 1720 | */ |
1721 | ||
c8fef167 MS |
1722 | static ssize_t /* O - Bytes read or -1 */ |
1723 | cups_read_fd(void *ctx, /* I - File descriptor as pointer */ | |
1724 | unsigned char *buf, /* I - Buffer for read */ | |
f14324a7 | 1725 | size_t bytes) /* I - Maximum number of bytes to read */ |
ef416fc2 | 1726 | { |
c8fef167 MS |
1727 | int fd = (int)((intptr_t)ctx); |
1728 | /* File descriptor */ | |
1729 | ssize_t count; /* Number of bytes read */ | |
ef416fc2 | 1730 | |
ef416fc2 | 1731 | |
a2326b5b MS |
1732 | #ifdef WIN32 /* Sigh */ |
1733 | while ((count = read(fd, buf, (unsigned)bytes)) < 0) | |
1734 | #else | |
f14324a7 | 1735 | while ((count = read(fd, buf, bytes)) < 0) |
a2326b5b | 1736 | #endif /* WIN32 */ |
f14324a7 | 1737 | if (errno != EINTR && errno != EAGAIN) |
d9564ec7 MS |
1738 | { |
1739 | DEBUG_printf(("4cups_read_fd: %s", strerror(errno))); | |
f14324a7 | 1740 | return (-1); |
d9564ec7 MS |
1741 | } |
1742 | ||
1743 | DEBUG_printf(("4cups_read_fd: Returning %d bytes.", (int)count)); | |
ef416fc2 | 1744 | |
f14324a7 | 1745 | return (count); |
ef416fc2 | 1746 | } |
1747 | ||
1748 | ||
ed486911 | 1749 | /* |
1750 | * 'cups_swap()' - Swap bytes in raster data... | |
1751 | */ | |
1752 | ||
1753 | static void | |
1754 | cups_swap(unsigned char *buf, /* I - Buffer to swap */ | |
7e86f2f6 | 1755 | size_t bytes) /* I - Number of bytes to swap */ |
ed486911 | 1756 | { |
1757 | unsigned char even, odd; /* Temporary variables */ | |
1758 | ||
1759 | ||
1760 | bytes /= 2; | |
1761 | ||
1762 | while (bytes > 0) | |
1763 | { | |
1764 | even = buf[0]; | |
1765 | odd = buf[1]; | |
1766 | buf[0] = odd; | |
1767 | buf[1] = even; | |
1768 | ||
1769 | buf += 2; | |
1770 | bytes --; | |
1771 | } | |
1772 | } | |
1773 | ||
1774 | ||
ef416fc2 | 1775 | /* |
c8fef167 | 1776 | * 'cups_write_fd()' - Write bytes to a file. |
ef416fc2 | 1777 | */ |
1778 | ||
c8fef167 MS |
1779 | static ssize_t /* O - Bytes written or -1 */ |
1780 | cups_write_fd(void *ctx, /* I - File descriptor pointer */ | |
1781 | unsigned char *buf, /* I - Bytes to write */ | |
1782 | size_t bytes) /* I - Number of bytes to write */ | |
ef416fc2 | 1783 | { |
c8fef167 MS |
1784 | int fd = (int)((intptr_t)ctx); |
1785 | /* File descriptor */ | |
1786 | ssize_t count; /* Number of bytes written */ | |
ef416fc2 | 1787 | |
ef416fc2 | 1788 | |
a2326b5b MS |
1789 | #ifdef WIN32 /* Sigh */ |
1790 | while ((count = write(fd, buf, (unsigned)bytes)) < 0) | |
1791 | #else | |
f14324a7 | 1792 | while ((count = write(fd, buf, bytes)) < 0) |
a2326b5b | 1793 | #endif /* WIN32 */ |
f14324a7 | 1794 | if (errno != EINTR && errno != EAGAIN) |
a5425f93 MS |
1795 | { |
1796 | DEBUG_printf(("4cups_write_fd: %s", strerror(errno))); | |
f14324a7 | 1797 | return (-1); |
a5425f93 | 1798 | } |
ef416fc2 | 1799 | |
f14324a7 | 1800 | return (count); |
ef416fc2 | 1801 | } |
1802 | ||
1803 | ||
1804 | /* | |
f2d18633 | 1805 | * End of "$Id$". |
ef416fc2 | 1806 | */ |