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Commit | Line | Data |
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ef416fc2 | 1 | /* |
7e86f2f6 | 2 | * Raster file routines for CUPS. |
ef416fc2 | 3 | * |
7c91db71 | 4 | * Copyright 2007-2018 by Apple Inc. |
7e86f2f6 | 5 | * Copyright 1997-2006 by Easy Software Products. |
ef416fc2 | 6 | * |
7e86f2f6 | 7 | * This file is part of the CUPS Imaging library. |
ef416fc2 | 8 | * |
7c91db71 MS |
9 | * Licensed under Apache License v2.0. See the file "LICENSE" for more |
10 | * information. | |
ef416fc2 | 11 | */ |
12 | ||
13 | /* | |
14 | * Include necessary headers... | |
15 | */ | |
16 | ||
fb863569 MS |
17 | #include "raster-private.h" |
18 | #include "debug-internal.h" | |
5a9febac MS |
19 | #ifdef HAVE_STDINT_H |
20 | # include <stdint.h> | |
21 | #endif /* HAVE_STDINT_H */ | |
ef416fc2 | 22 | |
23 | ||
f301802f | 24 | /* |
25 | * Private structures... | |
26 | */ | |
27 | ||
7c91db71 MS |
28 | typedef void (*_cups_copyfunc_t)(void *dst, const void *src, size_t bytes); |
29 | ||
30 | ||
31 | /* | |
32 | * Local globals... | |
33 | */ | |
34 | ||
35 | #ifdef DEBUG | |
dd204f7a MS |
36 | static const char * const cups_modes[] = |
37 | { /* Open modes */ | |
38 | "CUPS_RASTER_READ", | |
39 | "CUPS_RASTER_WRITE", | |
40 | "CUPS_RASTER_WRITE_COMPRESSED", | |
41 | "CUPS_RASTER_WRITE_PWG", | |
42 | "CUPS_RASTER_WRITE_APPLE" | |
43 | }; | |
44 | #endif /* DEBUG */ | |
45 | ||
46 | ||
47 | /* | |
48 | * Local functions... | |
49 | */ | |
50 | ||
51 | static ssize_t cups_raster_io(cups_raster_t *r, unsigned char *buf, size_t bytes); | |
52 | static ssize_t cups_raster_read(cups_raster_t *r, unsigned char *buf, size_t bytes); | |
53 | static int cups_raster_update(cups_raster_t *r); | |
54 | static ssize_t cups_raster_write(cups_raster_t *r, const unsigned char *pixels); | |
55 | static void cups_swap(unsigned char *buf, size_t bytes); | |
56 | static void cups_swap_copy(unsigned char *dst, const unsigned char *src, size_t bytes); | |
57 | ||
58 | ||
59 | /* | |
60 | * '_cupsRasterColorSpaceString()' - Return the colorspace name for a | |
61 | * cupsColorSpace value. | |
62 | */ | |
63 | ||
64 | const char * | |
65 | _cupsRasterColorSpaceString( | |
66 | cups_cspace_t cspace) /* I - cupsColorSpace value */ | |
67 | { | |
7c91db71 MS |
68 | static const char * const cups_color_spaces[] = |
69 | { /* Color spaces */ | |
f81f6d3d MS |
70 | "W", |
71 | "RGB", | |
72 | "RGBA", | |
73 | "K", | |
74 | "CMY", | |
75 | "YMC", | |
76 | "CMYK", | |
77 | "YMCK", | |
78 | "KCMY", | |
79 | "KCMYcm", | |
80 | "GMCK", | |
81 | "GMCS", | |
82 | "WHITE", | |
83 | "GOLD", | |
84 | "SILVER", | |
85 | "CIEXYZ", | |
86 | "CIELab", | |
87 | "RGBW", | |
88 | "SW", | |
89 | "SRGB", | |
90 | "ADOBERGB", | |
7c91db71 MS |
91 | "21", |
92 | "22", | |
93 | "23", | |
94 | "24", | |
95 | "25", | |
96 | "26", | |
97 | "27", | |
98 | "28", | |
99 | "29", | |
100 | "30", | |
101 | "31", | |
f81f6d3d MS |
102 | "ICC1", |
103 | "ICC2", | |
104 | "ICC3", | |
105 | "ICC4", | |
106 | "ICC5", | |
107 | "ICC6", | |
108 | "ICC7", | |
109 | "ICC8", | |
110 | "ICC9", | |
111 | "ICCA", | |
112 | "ICCB", | |
113 | "ICCC", | |
114 | "ICCD", | |
115 | "ICCE", | |
116 | "ICCF", | |
7c91db71 | 117 | "47", |
f81f6d3d MS |
118 | "DEVICE1", |
119 | "DEVICE2", | |
120 | "DEVICE3", | |
121 | "DEVICE4", | |
122 | "DEVICE5", | |
123 | "DEVICE6", | |
124 | "DEVICE7", | |
125 | "DEVICE8", | |
126 | "DEVICE9", | |
127 | "DEVICEA", | |
128 | "DEVICEB", | |
129 | "DEVICEC", | |
130 | "DEVICED", | |
131 | "DEVICEE", | |
132 | "DEVICEF" | |
7c91db71 | 133 | }; |
ef416fc2 | 134 | |
dd204f7a MS |
135 | if (cspace < CUPS_CSPACE_W || cspace > CUPS_CSPACE_DEVICEF) |
136 | return ("Unknown"); | |
137 | else | |
138 | return (cups_color_spaces[cspace]); | |
139 | } | |
ef416fc2 | 140 | |
141 | ||
142 | /* | |
dd204f7a | 143 | * '_cupsRasterDelete()' - Free a raster stream. |
db0bd74a MS |
144 | * |
145 | * The file descriptor associated with the raster stream must be closed | |
146 | * separately as needed. | |
ef416fc2 | 147 | */ |
148 | ||
149 | void | |
dd204f7a | 150 | _cupsRasterDelete(cups_raster_t *r) /* I - Stream to free */ |
ef416fc2 | 151 | { |
152 | if (r != NULL) | |
153 | { | |
ed486911 | 154 | if (r->buffer) |
155 | free(r->buffer); | |
156 | ||
ef416fc2 | 157 | if (r->pixels) |
158 | free(r->pixels); | |
159 | ||
160 | free(r); | |
161 | } | |
162 | } | |
163 | ||
164 | ||
6e5a57e8 | 165 | /* |
dd204f7a | 166 | * '_cupsRasterInitPWGHeader()' - Initialize a page header for PWG Raster output. |
6e5a57e8 MS |
167 | * |
168 | * The "media" argument specifies the media to use. | |
169 | * | |
170 | * The "type" argument specifies a "pwg-raster-document-type-supported" value | |
171 | * that controls the color space and bit depth of the raster data. | |
172 | * | |
173 | * The "xres" and "yres" arguments specify the raster resolution in dots per | |
174 | * inch. | |
175 | * | |
176 | * The "sheet_back" argument specifies a "pwg-raster-document-sheet-back" value | |
177 | * to apply for the back side of a page. Pass @code NULL@ for the front side. | |
178 | * | |
b2e6c325 | 179 | * @since CUPS 2.2/macOS 10.12@ |
6e5a57e8 MS |
180 | */ |
181 | ||
182 | int /* O - 1 on success, 0 on failure */ | |
dd204f7a | 183 | _cupsRasterInitPWGHeader( |
6e5a57e8 MS |
184 | cups_page_header2_t *h, /* I - Page header */ |
185 | pwg_media_t *media, /* I - PWG media information */ | |
186 | const char *type, /* I - PWG raster type string */ | |
187 | int xdpi, /* I - Cross-feed direction (horizontal) resolution */ | |
188 | int ydpi, /* I - Feed direction (vertical) resolution */ | |
189 | const char *sides, /* I - IPP "sides" option value */ | |
190 | const char *sheet_back) /* I - Transform for back side or @code NULL@ for none */ | |
191 | { | |
192 | if (!h || !media || !type || xdpi <= 0 || ydpi <= 0) | |
193 | { | |
194 | _cupsRasterAddError("%s", strerror(EINVAL)); | |
195 | return (0); | |
196 | } | |
197 | ||
198 | /* | |
199 | * Initialize the page header... | |
200 | */ | |
201 | ||
202 | memset(h, 0, sizeof(cups_page_header2_t)); | |
203 | ||
204 | strlcpy(h->cupsPageSizeName, media->pwg, sizeof(h->cupsPageSizeName)); | |
205 | ||
206 | h->PageSize[0] = (unsigned)(72 * media->width / 2540); | |
207 | h->PageSize[1] = (unsigned)(72 * media->length / 2540); | |
208 | ||
4ce95109 MS |
209 | /* This never gets written but is needed for some applications */ |
210 | h->cupsPageSize[0] = 72.0f * media->width / 2540.0f; | |
211 | h->cupsPageSize[1] = 72.0f * media->length / 2540.0f; | |
212 | ||
6e5a57e8 MS |
213 | h->ImagingBoundingBox[2] = h->PageSize[0]; |
214 | h->ImagingBoundingBox[3] = h->PageSize[1]; | |
215 | ||
216 | h->HWResolution[0] = (unsigned)xdpi; | |
217 | h->HWResolution[1] = (unsigned)ydpi; | |
218 | ||
219 | h->cupsWidth = (unsigned)(media->width * xdpi / 2540); | |
220 | h->cupsHeight = (unsigned)(media->length * ydpi / 2540); | |
221 | ||
222 | if (h->cupsWidth > 0x00ffffff || h->cupsHeight > 0x00ffffff) | |
223 | { | |
224 | _cupsRasterAddError("Raster dimensions too large."); | |
225 | return (0); | |
226 | } | |
227 | ||
3e679a29 MS |
228 | h->cupsInteger[CUPS_RASTER_PWG_ImageBoxRight] = h->cupsWidth; |
229 | h->cupsInteger[CUPS_RASTER_PWG_ImageBoxBottom] = h->cupsHeight; | |
6e5a57e8 MS |
230 | |
231 | /* | |
232 | * Colorspace and bytes per line... | |
233 | */ | |
234 | ||
235 | if (!strcmp(type, "adobe-rgb_8")) | |
236 | { | |
237 | h->cupsBitsPerColor = 8; | |
238 | h->cupsBitsPerPixel = 24; | |
239 | h->cupsColorSpace = CUPS_CSPACE_ADOBERGB; | |
240 | } | |
241 | else if (!strcmp(type, "adobe-rgb_16")) | |
242 | { | |
243 | h->cupsBitsPerColor = 16; | |
244 | h->cupsBitsPerPixel = 48; | |
245 | h->cupsColorSpace = CUPS_CSPACE_ADOBERGB; | |
246 | } | |
247 | else if (!strcmp(type, "black_1")) | |
248 | { | |
249 | h->cupsBitsPerColor = 1; | |
250 | h->cupsBitsPerPixel = 1; | |
251 | h->cupsColorSpace = CUPS_CSPACE_K; | |
252 | } | |
253 | else if (!strcmp(type, "black_8")) | |
254 | { | |
255 | h->cupsBitsPerColor = 8; | |
256 | h->cupsBitsPerPixel = 8; | |
257 | h->cupsColorSpace = CUPS_CSPACE_K; | |
258 | } | |
259 | else if (!strcmp(type, "black_16")) | |
260 | { | |
261 | h->cupsBitsPerColor = 16; | |
262 | h->cupsBitsPerPixel = 16; | |
263 | h->cupsColorSpace = CUPS_CSPACE_K; | |
264 | } | |
265 | else if (!strcmp(type, "cmyk_8")) | |
266 | { | |
267 | h->cupsBitsPerColor = 8; | |
268 | h->cupsBitsPerPixel = 32; | |
269 | h->cupsColorSpace = CUPS_CSPACE_CMYK; | |
270 | } | |
271 | else if (!strcmp(type, "cmyk_16")) | |
272 | { | |
273 | h->cupsBitsPerColor = 16; | |
274 | h->cupsBitsPerPixel = 64; | |
275 | h->cupsColorSpace = CUPS_CSPACE_CMYK; | |
276 | } | |
277 | else if (!strncmp(type, "device", 6) && type[6] >= '1' && type[6] <= '9') | |
278 | { | |
279 | int ncolors, bits; /* Number of colors and bits */ | |
280 | ||
281 | ||
282 | if (sscanf(type, "device%d_%d", &ncolors, &bits) != 2 || ncolors > 15 || (bits != 8 && bits != 16)) | |
283 | { | |
284 | _cupsRasterAddError("Unsupported raster type \'%s\'.", type); | |
285 | return (0); | |
286 | } | |
287 | ||
288 | h->cupsBitsPerColor = (unsigned)bits; | |
289 | h->cupsBitsPerPixel = (unsigned)(ncolors * bits); | |
290 | h->cupsColorSpace = (cups_cspace_t)(CUPS_CSPACE_DEVICE1 + ncolors - 1); | |
291 | } | |
292 | else if (!strcmp(type, "rgb_8")) | |
293 | { | |
294 | h->cupsBitsPerColor = 8; | |
295 | h->cupsBitsPerPixel = 24; | |
296 | h->cupsColorSpace = CUPS_CSPACE_RGB; | |
297 | } | |
298 | else if (!strcmp(type, "rgb_16")) | |
299 | { | |
300 | h->cupsBitsPerColor = 16; | |
301 | h->cupsBitsPerPixel = 48; | |
302 | h->cupsColorSpace = CUPS_CSPACE_RGB; | |
303 | } | |
304 | else if (!strcmp(type, "sgray_1")) | |
305 | { | |
306 | h->cupsBitsPerColor = 1; | |
307 | h->cupsBitsPerPixel = 1; | |
308 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
309 | } | |
310 | else if (!strcmp(type, "sgray_8")) | |
311 | { | |
312 | h->cupsBitsPerColor = 8; | |
313 | h->cupsBitsPerPixel = 8; | |
314 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
315 | } | |
316 | else if (!strcmp(type, "sgray_16")) | |
317 | { | |
318 | h->cupsBitsPerColor = 16; | |
319 | h->cupsBitsPerPixel = 16; | |
320 | h->cupsColorSpace = CUPS_CSPACE_SW; | |
321 | } | |
322 | else if (!strcmp(type, "srgb_8")) | |
323 | { | |
324 | h->cupsBitsPerColor = 8; | |
325 | h->cupsBitsPerPixel = 24; | |
326 | h->cupsColorSpace = CUPS_CSPACE_SRGB; | |
327 | } | |
328 | else if (!strcmp(type, "srgb_16")) | |
329 | { | |
330 | h->cupsBitsPerColor = 16; | |
331 | h->cupsBitsPerPixel = 48; | |
332 | h->cupsColorSpace = CUPS_CSPACE_SRGB; | |
333 | } | |
334 | else | |
335 | { | |
336 | _cupsRasterAddError("Unsupported raster type \'%s\'.", type); | |
337 | return (0); | |
338 | } | |
339 | ||
340 | h->cupsColorOrder = CUPS_ORDER_CHUNKED; | |
341 | h->cupsNumColors = h->cupsBitsPerPixel / h->cupsBitsPerColor; | |
342 | h->cupsBytesPerLine = (h->cupsWidth * h->cupsBitsPerPixel + 7) / 8; | |
343 | ||
344 | /* | |
345 | * Duplex support... | |
346 | */ | |
347 | ||
3e679a29 MS |
348 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 1; |
349 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 1; | |
6e5a57e8 MS |
350 | |
351 | if (sides) | |
352 | { | |
353 | if (!strcmp(sides, "two-sided-long-edge")) | |
354 | { | |
355 | h->Duplex = 1; | |
356 | } | |
357 | else if (!strcmp(sides, "two-sided-short-edge")) | |
358 | { | |
359 | h->Duplex = 1; | |
360 | h->Tumble = 1; | |
361 | } | |
362 | else if (strcmp(sides, "one-sided")) | |
363 | { | |
364 | _cupsRasterAddError("Unsupported sides value \'%s\'.", sides); | |
365 | return (0); | |
366 | } | |
367 | ||
368 | if (sheet_back) | |
369 | { | |
370 | if (!strcmp(sheet_back, "flipped")) | |
371 | { | |
372 | if (h->Tumble) | |
3e679a29 | 373 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
6e5a57e8 | 374 | else |
3e679a29 | 375 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; |
6e5a57e8 MS |
376 | } |
377 | else if (!strcmp(sheet_back, "manual-tumble")) | |
378 | { | |
379 | if (h->Tumble) | |
380 | { | |
3e679a29 MS |
381 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
382 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; | |
6e5a57e8 MS |
383 | } |
384 | } | |
385 | else if (!strcmp(sheet_back, "rotated")) | |
386 | { | |
387 | if (!h->Tumble) | |
388 | { | |
3e679a29 MS |
389 | h->cupsInteger[CUPS_RASTER_PWG_CrossFeedTransform] = 0xffffffffU; |
390 | h->cupsInteger[CUPS_RASTER_PWG_FeedTransform] = 0xffffffffU; | |
6e5a57e8 MS |
391 | } |
392 | } | |
393 | else if (strcmp(sheet_back, "normal")) | |
394 | { | |
395 | _cupsRasterAddError("Unsupported sheet_back value \'%s\'.", sheet_back); | |
396 | return (0); | |
397 | } | |
398 | } | |
399 | } | |
400 | ||
401 | return (1); | |
402 | } | |
403 | ||
404 | ||
ef416fc2 | 405 | /* |
dd204f7a | 406 | * '_cupsRasterNew()' - Create a raster stream using a callback function. |
c8fef167 MS |
407 | * |
408 | * This function associates a raster stream with the given callback function and | |
409 | * context pointer. | |
410 | * | |
411 | * When writing raster data, the @code CUPS_RASTER_WRITE@, | |
412 | * @code CUPS_RASTER_WRITE_COMPRESS@, or @code CUPS_RASTER_WRITE_PWG@ mode can | |
413 | * be used - compressed and PWG output is generally 25-50% smaller but adds a | |
414 | * 100-300% execution time overhead. | |
415 | */ | |
416 | ||
417 | cups_raster_t * /* O - New stream */ | |
dd204f7a | 418 | _cupsRasterNew( |
c8fef167 MS |
419 | cups_raster_iocb_t iocb, /* I - Read/write callback */ |
420 | void *ctx, /* I - Context pointer for callback */ | |
421 | cups_mode_t mode) /* I - Mode - @code CUPS_RASTER_READ@, | |
422 | @code CUPS_RASTER_WRITE@, | |
423 | @code CUPS_RASTER_WRITE_COMPRESSED@, | |
424 | or @code CUPS_RASTER_WRITE_PWG@ */ | |
ef416fc2 | 425 | { |
426 | cups_raster_t *r; /* New stream */ | |
427 | ||
428 | ||
dd204f7a | 429 | DEBUG_printf(("_cupsRasterOpenIO(iocb=%p, ctx=%p, mode=%s)", (void *)iocb, ctx, cups_modes[mode])); |
7c91db71 | 430 | |
f7deaa1a | 431 | _cupsRasterClearError(); |
432 | ||
ef416fc2 | 433 | if ((r = calloc(sizeof(cups_raster_t), 1)) == NULL) |
f7deaa1a | 434 | { |
435 | _cupsRasterAddError("Unable to allocate memory for raster stream: %s\n", | |
436 | strerror(errno)); | |
dd204f7a | 437 | DEBUG_puts("1_cupsRasterOpenIO: Returning NULL."); |
ef416fc2 | 438 | return (NULL); |
f7deaa1a | 439 | } |
ef416fc2 | 440 | |
c8fef167 MS |
441 | r->ctx = ctx; |
442 | r->iocb = iocb; | |
443 | r->mode = mode; | |
ef416fc2 | 444 | |
445 | if (mode == CUPS_RASTER_READ) | |
446 | { | |
447 | /* | |
448 | * Open for read - get sync word... | |
449 | */ | |
450 | ||
f14324a7 | 451 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) != |
c8fef167 | 452 | sizeof(r->sync)) |
ef416fc2 | 453 | { |
f7deaa1a | 454 | _cupsRasterAddError("Unable to read header from raster stream: %s\n", |
455 | strerror(errno)); | |
ef416fc2 | 456 | free(r); |
dd204f7a | 457 | DEBUG_puts("1_cupsRasterOpenIO: Unable to read header, returning NULL."); |
ef416fc2 | 458 | return (NULL); |
459 | } | |
460 | ||
461 | if (r->sync != CUPS_RASTER_SYNC && | |
462 | r->sync != CUPS_RASTER_REVSYNC && | |
463 | r->sync != CUPS_RASTER_SYNCv1 && | |
ed486911 | 464 | r->sync != CUPS_RASTER_REVSYNCv1 && |
465 | r->sync != CUPS_RASTER_SYNCv2 && | |
05fa7028 MS |
466 | r->sync != CUPS_RASTER_REVSYNCv2 && |
467 | r->sync != CUPS_RASTER_SYNCapple && | |
468 | r->sync != CUPS_RASTER_REVSYNCapple) | |
ef416fc2 | 469 | { |
f7deaa1a | 470 | _cupsRasterAddError("Unknown raster format %08x!\n", r->sync); |
ef416fc2 | 471 | free(r); |
dd204f7a | 472 | DEBUG_puts("1_cupsRasterOpenIO: Unknown format, returning NULL."); |
ef416fc2 | 473 | return (NULL); |
474 | } | |
ed486911 | 475 | |
476 | if (r->sync == CUPS_RASTER_SYNCv2 || | |
05fa7028 MS |
477 | r->sync == CUPS_RASTER_REVSYNCv2 || |
478 | r->sync == CUPS_RASTER_SYNCapple || | |
479 | r->sync == CUPS_RASTER_REVSYNCapple) | |
ed486911 | 480 | r->compressed = 1; |
481 | ||
dd204f7a | 482 | DEBUG_printf(("1_cupsRasterOpenIO: sync=%08x", r->sync)); |
7c91db71 | 483 | |
ed486911 | 484 | if (r->sync == CUPS_RASTER_REVSYNC || |
485 | r->sync == CUPS_RASTER_REVSYNCv1 || | |
05fa7028 MS |
486 | r->sync == CUPS_RASTER_REVSYNCv2 || |
487 | r->sync == CUPS_RASTER_REVSYNCapple) | |
ed486911 | 488 | r->swapped = 1; |
09a101d6 | 489 | |
05fa7028 MS |
490 | if (r->sync == CUPS_RASTER_SYNCapple || |
491 | r->sync == CUPS_RASTER_REVSYNCapple) | |
492 | { | |
493 | unsigned char header[8]; /* File header */ | |
494 | ||
495 | if (cups_raster_io(r, (unsigned char *)header, sizeof(header)) != | |
496 | sizeof(header)) | |
497 | { | |
498 | _cupsRasterAddError("Unable to read header from raster stream: %s\n", | |
499 | strerror(errno)); | |
500 | free(r); | |
dd204f7a | 501 | DEBUG_puts("1_cupsRasterOpenIO: Unable to read header, returning NULL."); |
05fa7028 MS |
502 | return (NULL); |
503 | } | |
05fa7028 MS |
504 | } |
505 | ||
7c91db71 MS |
506 | #ifdef DEBUG |
507 | r->iostart = r->iocount; | |
508 | #endif /* DEBUG */ | |
ef416fc2 | 509 | } |
510 | else | |
511 | { | |
512 | /* | |
513 | * Open for write - put sync word... | |
514 | */ | |
515 | ||
c8fef167 | 516 | switch (mode) |
f7deaa1a | 517 | { |
c8fef167 MS |
518 | default : |
519 | case CUPS_RASTER_WRITE : | |
520 | r->sync = CUPS_RASTER_SYNC; | |
521 | break; | |
522 | ||
523 | case CUPS_RASTER_WRITE_COMPRESSED : | |
524 | r->compressed = 1; | |
525 | r->sync = CUPS_RASTER_SYNCv2; | |
526 | break; | |
527 | ||
528 | case CUPS_RASTER_WRITE_PWG : | |
529 | r->compressed = 1; | |
530 | r->sync = htonl(CUPS_RASTER_SYNC_PWG); | |
531 | r->swapped = r->sync != CUPS_RASTER_SYNC_PWG; | |
532 | break; | |
05fa7028 MS |
533 | |
534 | case CUPS_RASTER_WRITE_APPLE : | |
535 | r->compressed = 1; | |
536 | r->sync = htonl(CUPS_RASTER_SYNCapple); | |
537 | r->swapped = r->sync != CUPS_RASTER_SYNCapple; | |
538 | r->apple_page_count = 0xffffffffU; | |
539 | break; | |
f7deaa1a | 540 | } |
ed486911 | 541 | |
7e86f2f6 | 542 | if (cups_raster_io(r, (unsigned char *)&(r->sync), sizeof(r->sync)) < (ssize_t)sizeof(r->sync)) |
ef416fc2 | 543 | { |
f7deaa1a | 544 | _cupsRasterAddError("Unable to write raster stream header: %s\n", |
545 | strerror(errno)); | |
ef416fc2 | 546 | free(r); |
dd204f7a | 547 | DEBUG_puts("1_cupsRasterOpenIO: Unable to write header, returning NULL."); |
ef416fc2 | 548 | return (NULL); |
549 | } | |
550 | } | |
551 | ||
dd204f7a | 552 | DEBUG_printf(("1_cupsRasterOpenIO: compressed=%d, swapped=%d, returning %p", r->compressed, r->swapped, (void *)r)); |
7c91db71 | 553 | |
ef416fc2 | 554 | return (r); |
555 | } | |
556 | ||
557 | ||
558 | /* | |
dd204f7a | 559 | * '_cupsRasterReadHeader()' - Read a raster page header. |
ef416fc2 | 560 | */ |
561 | ||
dd204f7a MS |
562 | unsigned /* O - 1 on success, 0 on fail */ |
563 | _cupsRasterReadHeader( | |
564 | cups_raster_t *r) /* I - Raster stream */ | |
ef416fc2 | 565 | { |
dd204f7a | 566 | size_t len; /* Length for read/swap */ |
7c91db71 | 567 | |
ef416fc2 | 568 | |
dd204f7a MS |
569 | DEBUG_printf(("3_cupsRasterReadHeader(r=%p), r->mode=%s", (void *)r, r ? cups_modes[r->mode] : "")); |
570 | ||
571 | if (r == NULL || r->mode != CUPS_RASTER_READ) | |
ef416fc2 | 572 | return (0); |
dd204f7a MS |
573 | |
574 | DEBUG_printf(("4_cupsRasterReadHeader: r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); | |
575 | ||
576 | memset(&(r->header), 0, sizeof(r->header)); | |
f14324a7 | 577 | |
ef416fc2 | 578 | /* |
dd204f7a | 579 | * Read the header... |
ef416fc2 | 580 | */ |
581 | ||
dd204f7a MS |
582 | switch (r->sync) |
583 | { | |
584 | default : | |
585 | /* | |
586 | * Get the length of the raster header... | |
587 | */ | |
ef416fc2 | 588 | |
dd204f7a MS |
589 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1) |
590 | len = sizeof(cups_page_header_t); | |
591 | else | |
592 | len = sizeof(cups_page_header2_t); | |
7c91db71 | 593 | |
dd204f7a | 594 | DEBUG_printf(("4_cupsRasterReadHeader: len=%d", (int)len)); |
ef416fc2 | 595 | |
dd204f7a MS |
596 | /* |
597 | * Read it... | |
598 | */ | |
ef416fc2 | 599 | |
dd204f7a MS |
600 | if (cups_raster_read(r, (unsigned char *)&(r->header), len) < (ssize_t)len) |
601 | { | |
602 | DEBUG_printf(("4_cupsRasterReadHeader: EOF, r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); | |
603 | return (0); | |
604 | } | |
ef416fc2 | 605 | |
dd204f7a MS |
606 | /* |
607 | * Swap bytes as needed... | |
608 | */ | |
ef416fc2 | 609 | |
dd204f7a MS |
610 | if (r->swapped) |
611 | { | |
612 | unsigned *s, /* Current word */ | |
613 | temp; /* Temporary copy */ | |
590e44a4 | 614 | |
dd204f7a MS |
615 | |
616 | DEBUG_puts("4_cupsRasterReadHeader: Swapping header bytes."); | |
617 | ||
618 | for (len = 81, s = &(r->header.AdvanceDistance); | |
619 | len > 0; | |
620 | len --, s ++) | |
621 | { | |
622 | temp = *s; | |
623 | *s = ((temp & 0xff) << 24) | | |
624 | ((temp & 0xff00) << 8) | | |
625 | ((temp & 0xff0000) >> 8) | | |
626 | ((temp & 0xff000000) >> 24); | |
627 | ||
628 | DEBUG_printf(("4_cupsRasterReadHeader: %08x => %08x", temp, *s)); | |
629 | } | |
630 | } | |
631 | break; | |
632 | ||
633 | case CUPS_RASTER_SYNCapple : | |
634 | case CUPS_RASTER_REVSYNCapple : | |
635 | { | |
636 | unsigned char appleheader[32]; /* Raw header */ | |
637 | static const unsigned rawcspace[] = | |
638 | { | |
639 | CUPS_CSPACE_SW, | |
640 | CUPS_CSPACE_SRGB, | |
641 | CUPS_CSPACE_RGBW, | |
642 | CUPS_CSPACE_ADOBERGB, | |
643 | CUPS_CSPACE_W, | |
644 | CUPS_CSPACE_RGB, | |
645 | CUPS_CSPACE_CMYK | |
646 | }; | |
647 | static const unsigned rawnumcolors[] = | |
648 | { | |
649 | 1, | |
650 | 3, | |
651 | 4, | |
652 | 3, | |
653 | 1, | |
654 | 3, | |
655 | 4 | |
656 | }; | |
657 | ||
658 | if (cups_raster_read(r, appleheader, sizeof(appleheader)) < (ssize_t)sizeof(appleheader)) | |
659 | { | |
660 | DEBUG_printf(("4_cupsRasterReadHeader: EOF, r->iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); | |
661 | return (0); | |
662 | } | |
663 | ||
664 | strlcpy(r->header.MediaClass, "PwgRaster", sizeof(r->header.MediaClass)); | |
665 | /* PwgRaster */ | |
666 | r->header.cupsBitsPerPixel = appleheader[0]; | |
667 | r->header.cupsColorSpace = appleheader[1] >= (sizeof(rawcspace) / sizeof(rawcspace[0])) ? CUPS_CSPACE_DEVICE1 : rawcspace[appleheader[1]]; | |
668 | r->header.cupsNumColors = appleheader[1] >= (sizeof(rawnumcolors) / sizeof(rawnumcolors[0])) ? 1 : rawnumcolors[appleheader[1]]; | |
669 | r->header.cupsBitsPerColor = r->header.cupsBitsPerPixel / r->header.cupsNumColors; | |
670 | r->header.cupsWidth = ((((((unsigned)appleheader[12] << 8) | (unsigned)appleheader[13]) << 8) | (unsigned)appleheader[14]) << 8) | (unsigned)appleheader[15]; | |
671 | r->header.cupsHeight = ((((((unsigned)appleheader[16] << 8) | (unsigned)appleheader[17]) << 8) | (unsigned)appleheader[18]) << 8) | (unsigned)appleheader[19]; | |
672 | r->header.cupsBytesPerLine = r->header.cupsWidth * r->header.cupsBitsPerPixel / 8; | |
673 | r->header.cupsColorOrder = CUPS_ORDER_CHUNKED; | |
674 | r->header.HWResolution[0] = r->header.HWResolution[1] = ((((((unsigned)appleheader[20] << 8) | (unsigned)appleheader[21]) << 8) | (unsigned)appleheader[22]) << 8) | (unsigned)appleheader[23]; | |
675 | ||
676 | if (r->header.HWResolution[0] > 0) | |
677 | { | |
678 | r->header.PageSize[0] = (unsigned)(r->header.cupsWidth * 72 / r->header.HWResolution[0]); | |
679 | r->header.PageSize[1] = (unsigned)(r->header.cupsHeight * 72 / r->header.HWResolution[1]); | |
680 | r->header.cupsPageSize[0] = (float)(r->header.cupsWidth * 72.0 / r->header.HWResolution[0]); | |
681 | r->header.cupsPageSize[1] = (float)(r->header.cupsHeight * 72.0 / r->header.HWResolution[1]); | |
682 | } | |
683 | ||
684 | r->header.cupsInteger[0] = r->apple_page_count; | |
685 | r->header.cupsInteger[7] = 0xffffff; | |
686 | } | |
687 | break; | |
62bd8d91 | 688 | } |
f14324a7 | 689 | |
ef416fc2 | 690 | /* |
dd204f7a | 691 | * Update the header and row count... |
ef416fc2 | 692 | */ |
693 | ||
dd204f7a MS |
694 | if (!cups_raster_update(r)) |
695 | return (0); | |
ef416fc2 | 696 | |
fb863569 MS |
697 | DEBUG_printf(("4_cupsRasterReadHeader: cupsColorSpace=%s", _cupsRasterColorSpaceString(r->header.cupsColorSpace))); |
698 | DEBUG_printf(("4_cupsRasterReadHeader: cupsBitsPerColor=%u", r->header.cupsBitsPerColor)); | |
699 | DEBUG_printf(("4_cupsRasterReadHeader: cupsBitsPerPixel=%u", r->header.cupsBitsPerPixel)); | |
700 | DEBUG_printf(("4_cupsRasterReadHeader: cupsBytesPerLine=%u", r->header.cupsBytesPerLine)); | |
701 | DEBUG_printf(("4_cupsRasterReadHeader: cupsWidth=%u", r->header.cupsWidth)); | |
702 | DEBUG_printf(("4_cupsRasterReadHeader: cupsHeight=%u", r->header.cupsHeight)); | |
703 | DEBUG_printf(("4_cupsRasterReadHeader: r->bpp=%d", r->bpp)); | |
7c91db71 | 704 | |
dd204f7a | 705 | 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 | 706 | } |
707 | ||
708 | ||
709 | /* | |
dd204f7a | 710 | * '_cupsRasterReadPixels()' - Read raster pixels. |
79e1d494 MS |
711 | * |
712 | * For best performance, filters should read one or more whole lines. | |
713 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
714 | * the line buffer and as the number of bytes to read. | |
ef416fc2 | 715 | */ |
716 | ||
717 | unsigned /* O - Number of bytes read */ | |
dd204f7a MS |
718 | _cupsRasterReadPixels( |
719 | cups_raster_t *r, /* I - Raster stream */ | |
720 | unsigned char *p, /* I - Pointer to pixel buffer */ | |
721 | unsigned len) /* I - Number of bytes to read */ | |
ef416fc2 | 722 | { |
7e86f2f6 | 723 | ssize_t bytes; /* Bytes read */ |
ed486911 | 724 | unsigned cupsBytesPerLine; /* cupsBytesPerLine value */ |
ef416fc2 | 725 | unsigned remaining; /* Bytes remaining */ |
726 | unsigned char *ptr, /* Pointer to read buffer */ | |
ed486911 | 727 | byte, /* Byte from file */ |
728 | *temp; /* Pointer into buffer */ | |
7e86f2f6 | 729 | unsigned count; /* Repetition count */ |
ef416fc2 | 730 | |
731 | ||
dd204f7a | 732 | DEBUG_printf(("_cupsRasterReadPixels(r=%p, p=%p, len=%u)", (void *)r, (void *)p, len)); |
590e44a4 | 733 | |
a4845881 MS |
734 | if (r == NULL || r->mode != CUPS_RASTER_READ || r->remaining == 0 || |
735 | r->header.cupsBytesPerLine == 0) | |
590e44a4 | 736 | { |
dd204f7a | 737 | DEBUG_puts("1_cupsRasterReadPixels: Returning 0."); |
ef416fc2 | 738 | return (0); |
590e44a4 MS |
739 | } |
740 | ||
dd204f7a | 741 | DEBUG_printf(("1_cupsRasterReadPixels: compressed=%d, remaining=%u", r->compressed, r->remaining)); |
ef416fc2 | 742 | |
ed486911 | 743 | if (!r->compressed) |
744 | { | |
745 | /* | |
746 | * Read without compression... | |
747 | */ | |
748 | ||
749 | r->remaining -= len / r->header.cupsBytesPerLine; | |
750 | ||
f14324a7 | 751 | if (cups_raster_io(r, p, len) < (ssize_t)len) |
590e44a4 | 752 | { |
dd204f7a | 753 | DEBUG_puts("1_cupsRasterReadPixels: Read error, returning 0."); |
ed486911 | 754 | return (0); |
590e44a4 | 755 | } |
ed486911 | 756 | |
757 | /* | |
758 | * Swap bytes as needed... | |
759 | */ | |
760 | ||
c8fef167 MS |
761 | if (r->swapped && |
762 | (r->header.cupsBitsPerColor == 16 || | |
ed486911 | 763 | r->header.cupsBitsPerPixel == 12 || |
c8fef167 | 764 | r->header.cupsBitsPerPixel == 16)) |
ed486911 | 765 | cups_swap(p, len); |
766 | ||
767 | /* | |
768 | * Return... | |
769 | */ | |
770 | ||
dd204f7a | 771 | DEBUG_printf(("1_cupsRasterReadPixels: Returning %u", len)); |
590e44a4 | 772 | |
ed486911 | 773 | return (len); |
774 | } | |
775 | ||
776 | /* | |
777 | * Read compressed data... | |
778 | */ | |
779 | ||
780 | remaining = len; | |
781 | cupsBytesPerLine = r->header.cupsBytesPerLine; | |
ef416fc2 | 782 | |
783 | while (remaining > 0 && r->remaining > 0) | |
784 | { | |
785 | if (r->count == 0) | |
786 | { | |
787 | /* | |
788 | * Need to read a new row... | |
789 | */ | |
790 | ||
ed486911 | 791 | if (remaining == cupsBytesPerLine) |
ef416fc2 | 792 | ptr = p; |
793 | else | |
794 | ptr = r->pixels; | |
795 | ||
ed486911 | 796 | /* |
c8fef167 | 797 | * Read using a modified PackBits compression... |
ed486911 | 798 | */ |
ef416fc2 | 799 | |
ed486911 | 800 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 | 801 | { |
dd204f7a | 802 | DEBUG_puts("1_cupsRasterReadPixels: Read error, returning 0."); |
ed486911 | 803 | return (0); |
590e44a4 | 804 | } |
ef416fc2 | 805 | |
7d5824d6 | 806 | r->count = (unsigned)byte + 1; |
ed486911 | 807 | |
808 | if (r->count > 1) | |
809 | ptr = r->pixels; | |
810 | ||
811 | temp = ptr; | |
7e86f2f6 | 812 | bytes = (ssize_t)cupsBytesPerLine; |
ed486911 | 813 | |
814 | while (bytes > 0) | |
ef416fc2 | 815 | { |
816 | /* | |
ed486911 | 817 | * Get a new repeat count... |
ef416fc2 | 818 | */ |
819 | ||
ed486911 | 820 | if (!cups_raster_read(r, &byte, 1)) |
590e44a4 | 821 | { |
dd204f7a | 822 | DEBUG_puts("1_cupsRasterReadPixels: Read error, returning 0."); |
ef416fc2 | 823 | return (0); |
590e44a4 | 824 | } |
ef416fc2 | 825 | |
05fa7028 MS |
826 | if (byte == 128) |
827 | { | |
828 | /* | |
829 | * Clear to end of line... | |
830 | */ | |
831 | ||
832 | switch (r->header.cupsColorSpace) | |
833 | { | |
834 | case CUPS_CSPACE_W : | |
835 | case CUPS_CSPACE_RGB : | |
836 | case CUPS_CSPACE_SW : | |
837 | case CUPS_CSPACE_SRGB : | |
838 | case CUPS_CSPACE_RGBW : | |
839 | case CUPS_CSPACE_ADOBERGB : | |
27a5af3e | 840 | memset(temp, 0xff, (size_t)bytes); |
05fa7028 MS |
841 | break; |
842 | default : | |
27a5af3e | 843 | memset(temp, 0x00, (size_t)bytes); |
05fa7028 MS |
844 | break; |
845 | } | |
846 | ||
847 | temp += bytes; | |
848 | bytes = 0; | |
849 | } | |
850 | else if (byte & 128) | |
ef416fc2 | 851 | { |
852 | /* | |
ed486911 | 853 | * Copy N literal pixels... |
ef416fc2 | 854 | */ |
855 | ||
7e86f2f6 | 856 | count = (unsigned)(257 - byte) * r->bpp; |
ef416fc2 | 857 | |
7e86f2f6 MS |
858 | if (count > (unsigned)bytes) |
859 | count = (unsigned)bytes; | |
ef416fc2 | 860 | |
ed486911 | 861 | if (!cups_raster_read(r, temp, count)) |
590e44a4 | 862 | { |
dd204f7a | 863 | DEBUG_puts("1_cupsRasterReadPixels: Read error, returning 0."); |
ed486911 | 864 | return (0); |
590e44a4 | 865 | } |
ef416fc2 | 866 | |
ed486911 | 867 | temp += count; |
34facc5c | 868 | bytes -= (ssize_t)count; |
ed486911 | 869 | } |
870 | else | |
871 | { | |
872 | /* | |
873 | * Repeat the next N bytes... | |
874 | */ | |
ef416fc2 | 875 | |
7d5824d6 | 876 | count = ((unsigned)byte + 1) * r->bpp; |
7e86f2f6 MS |
877 | if (count > (unsigned)bytes) |
878 | count = (unsigned)bytes; | |
ef416fc2 | 879 | |
ed486911 | 880 | if (count < r->bpp) |
881 | break; | |
ef416fc2 | 882 | |
34facc5c | 883 | bytes -= (ssize_t)count; |
ef416fc2 | 884 | |
ed486911 | 885 | if (!cups_raster_read(r, temp, r->bpp)) |
590e44a4 | 886 | { |
dd204f7a | 887 | DEBUG_puts("1_cupsRasterReadPixels: Read error, returning 0."); |
ed486911 | 888 | return (0); |
590e44a4 | 889 | } |
ef416fc2 | 890 | |
ed486911 | 891 | temp += r->bpp; |
892 | count -= r->bpp; | |
ef416fc2 | 893 | |
ed486911 | 894 | while (count > 0) |
895 | { | |
896 | memcpy(temp, temp - r->bpp, r->bpp); | |
ef416fc2 | 897 | temp += r->bpp; |
898 | count -= r->bpp; | |
ed486911 | 899 | } |
ef416fc2 | 900 | } |
901 | } | |
902 | ||
ed486911 | 903 | /* |
904 | * Swap bytes as needed... | |
905 | */ | |
906 | ||
f301802f | 907 | if ((r->header.cupsBitsPerColor == 16 || |
908 | r->header.cupsBitsPerPixel == 12 || | |
909 | r->header.cupsBitsPerPixel == 16) && | |
ed486911 | 910 | r->swapped) |
7c91db71 | 911 | { |
dd204f7a | 912 | DEBUG_puts("1_cupsRasterReadPixels: Swapping bytes."); |
7c91db71 MS |
913 | cups_swap(ptr, (size_t)cupsBytesPerLine); |
914 | } | |
ef416fc2 | 915 | |
ed486911 | 916 | /* |
917 | * Update pointers... | |
918 | */ | |
ef416fc2 | 919 | |
ed486911 | 920 | if (remaining >= cupsBytesPerLine) |
ef416fc2 | 921 | { |
7e86f2f6 | 922 | bytes = (ssize_t)cupsBytesPerLine; |
ef416fc2 | 923 | r->pcurrent = r->pixels; |
924 | r->count --; | |
925 | r->remaining --; | |
926 | } | |
927 | else | |
928 | { | |
7e86f2f6 | 929 | bytes = (ssize_t)remaining; |
ef416fc2 | 930 | r->pcurrent = r->pixels + bytes; |
931 | } | |
932 | ||
ed486911 | 933 | /* |
934 | * Copy data as needed... | |
935 | */ | |
936 | ||
ef416fc2 | 937 | if (ptr != p) |
07623986 | 938 | memcpy(p, ptr, (size_t)bytes); |
ef416fc2 | 939 | } |
940 | else | |
941 | { | |
942 | /* | |
943 | * Copy fragment from buffer... | |
944 | */ | |
945 | ||
a2326b5b | 946 | if ((unsigned)(bytes = (int)(r->pend - r->pcurrent)) > remaining) |
7e86f2f6 | 947 | bytes = (ssize_t)remaining; |
ef416fc2 | 948 | |
07623986 | 949 | memcpy(p, r->pcurrent, (size_t)bytes); |
ef416fc2 | 950 | r->pcurrent += bytes; |
951 | ||
952 | if (r->pcurrent >= r->pend) | |
953 | { | |
954 | r->pcurrent = r->pixels; | |
955 | r->count --; | |
956 | r->remaining --; | |
957 | } | |
958 | } | |
959 | ||
7e86f2f6 | 960 | remaining -= (unsigned)bytes; |
ef416fc2 | 961 | p += bytes; |
962 | } | |
963 | ||
dd204f7a | 964 | DEBUG_printf(("1_cupsRasterReadPixels: Returning %u", len)); |
590e44a4 | 965 | |
ef416fc2 | 966 | return (len); |
967 | } | |
968 | ||
969 | ||
970 | /* | |
dd204f7a | 971 | * '_cupsRasterWriteHeader()' - Write a raster page header. |
ef416fc2 | 972 | */ |
f14324a7 | 973 | |
ef416fc2 | 974 | unsigned /* O - 1 on success, 0 on failure */ |
dd204f7a MS |
975 | _cupsRasterWriteHeader( |
976 | cups_raster_t *r) /* I - Raster stream */ | |
ef416fc2 | 977 | { |
dd204f7a | 978 | DEBUG_printf(("_cupsRasterWriteHeader(r=%p)", (void *)r)); |
7c91db71 | 979 | |
dd204f7a MS |
980 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsColorSpace=%s", _cupsRasterColorSpaceString(r->header.cupsColorSpace))); |
981 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsBitsPerColor=%u", r->header.cupsBitsPerColor)); | |
982 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsBitsPerPixel=%u", r->header.cupsBitsPerPixel)); | |
983 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsBytesPerLine=%u", r->header.cupsBytesPerLine)); | |
984 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsWidth=%u", r->header.cupsWidth)); | |
985 | DEBUG_printf(("1_cupsRasterWriteHeader: cupsHeight=%u", r->header.cupsHeight)); | |
ef416fc2 | 986 | |
987 | /* | |
dd204f7a | 988 | * Compute the number of raster lines in the page image... |
ef416fc2 | 989 | */ |
990 | ||
3c0659cd | 991 | if (!cups_raster_update(r)) |
7c91db71 | 992 | { |
dd204f7a | 993 | DEBUG_puts("1_cupsRasterWriteHeader: Unable to update parameters, returning 0."); |
3c0659cd | 994 | return (0); |
7c91db71 MS |
995 | } |
996 | ||
997 | if (r->mode == CUPS_RASTER_WRITE_APPLE) | |
998 | { | |
dd204f7a | 999 | r->rowheight = r->header.HWResolution[0] / r->header.HWResolution[1]; |
7c91db71 | 1000 | |
dd204f7a | 1001 | if (r->header.HWResolution[0] != (r->rowheight * r->header.HWResolution[1])) |
7c91db71 MS |
1002 | return (0); |
1003 | } | |
1004 | else | |
1005 | r->rowheight = 1; | |
ef416fc2 | 1006 | |
1007 | /* | |
1008 | * Write the raster header... | |
1009 | */ | |
1010 | ||
c8fef167 MS |
1011 | if (r->mode == CUPS_RASTER_WRITE_PWG) |
1012 | { | |
1013 | /* | |
10ddcf65 | 1014 | * PWG raster data is always network byte order with much of the page header |
c8fef167 MS |
1015 | * zeroed. |
1016 | */ | |
1017 | ||
1018 | cups_page_header2_t fh; /* File page header */ | |
1019 | ||
1020 | memset(&fh, 0, sizeof(fh)); | |
10ddcf65 | 1021 | strlcpy(fh.MediaClass, "PwgRaster", sizeof(fh.MediaClass)); |
10ddcf65 MS |
1022 | strlcpy(fh.MediaColor, r->header.MediaColor, sizeof(fh.MediaColor)); |
1023 | strlcpy(fh.MediaType, r->header.MediaType, sizeof(fh.MediaType)); | |
1024 | strlcpy(fh.OutputType, r->header.OutputType, sizeof(fh.OutputType)); | |
dcd7f90e MS |
1025 | strlcpy(fh.cupsRenderingIntent, r->header.cupsRenderingIntent, |
1026 | sizeof(fh.cupsRenderingIntent)); | |
1027 | strlcpy(fh.cupsPageSizeName, r->header.cupsPageSizeName, | |
1028 | sizeof(fh.cupsPageSizeName)); | |
10ddcf65 MS |
1029 | |
1030 | fh.CutMedia = htonl(r->header.CutMedia); | |
1031 | fh.Duplex = htonl(r->header.Duplex); | |
1032 | fh.HWResolution[0] = htonl(r->header.HWResolution[0]); | |
1033 | fh.HWResolution[1] = htonl(r->header.HWResolution[1]); | |
1034 | fh.ImagingBoundingBox[0] = htonl(r->header.ImagingBoundingBox[0]); | |
1035 | fh.ImagingBoundingBox[1] = htonl(r->header.ImagingBoundingBox[1]); | |
1036 | fh.ImagingBoundingBox[2] = htonl(r->header.ImagingBoundingBox[2]); | |
1037 | fh.ImagingBoundingBox[3] = htonl(r->header.ImagingBoundingBox[3]); | |
1038 | fh.InsertSheet = htonl(r->header.InsertSheet); | |
1039 | fh.Jog = htonl(r->header.Jog); | |
1040 | fh.LeadingEdge = htonl(r->header.LeadingEdge); | |
1041 | fh.ManualFeed = htonl(r->header.ManualFeed); | |
1042 | fh.MediaPosition = htonl(r->header.MediaPosition); | |
1043 | fh.MediaWeight = htonl(r->header.MediaWeight); | |
1044 | fh.NumCopies = htonl(r->header.NumCopies); | |
1045 | fh.Orientation = htonl(r->header.Orientation); | |
1046 | fh.PageSize[0] = htonl(r->header.PageSize[0]); | |
1047 | fh.PageSize[1] = htonl(r->header.PageSize[1]); | |
1048 | fh.Tumble = htonl(r->header.Tumble); | |
1049 | fh.cupsWidth = htonl(r->header.cupsWidth); | |
1050 | fh.cupsHeight = htonl(r->header.cupsHeight); | |
1051 | fh.cupsBitsPerColor = htonl(r->header.cupsBitsPerColor); | |
1052 | fh.cupsBitsPerPixel = htonl(r->header.cupsBitsPerPixel); | |
1053 | fh.cupsBytesPerLine = htonl(r->header.cupsBytesPerLine); | |
1054 | fh.cupsColorOrder = htonl(r->header.cupsColorOrder); | |
1055 | fh.cupsColorSpace = htonl(r->header.cupsColorSpace); | |
1056 | fh.cupsNumColors = htonl(r->header.cupsNumColors); | |
1057 | fh.cupsInteger[0] = htonl(r->header.cupsInteger[0]); | |
10ddcf65 | 1058 | fh.cupsInteger[1] = htonl(r->header.cupsInteger[1]); |
10ddcf65 | 1059 | fh.cupsInteger[2] = htonl(r->header.cupsInteger[2]); |
dcd7f90e MS |
1060 | fh.cupsInteger[3] = htonl((unsigned)(r->header.cupsImagingBBox[0] * r->header.HWResolution[0] / 72.0)); |
1061 | fh.cupsInteger[4] = htonl((unsigned)(r->header.cupsImagingBBox[1] * r->header.HWResolution[1] / 72.0)); | |
1062 | fh.cupsInteger[5] = htonl((unsigned)(r->header.cupsImagingBBox[2] * r->header.HWResolution[0] / 72.0)); | |
1063 | fh.cupsInteger[6] = htonl((unsigned)(r->header.cupsImagingBBox[3] * r->header.HWResolution[1] / 72.0)); | |
1064 | fh.cupsInteger[7] = htonl(0xffffff); | |
c8fef167 | 1065 | |
f14324a7 | 1066 | return (cups_raster_io(r, (unsigned char *)&fh, sizeof(fh)) == sizeof(fh)); |
c8fef167 | 1067 | } |
05fa7028 MS |
1068 | else if (r->mode == CUPS_RASTER_WRITE_APPLE) |
1069 | { | |
1070 | /* | |
1071 | * Raw raster data is always network byte order with most of the page header | |
1072 | * zeroed. | |
1073 | */ | |
1074 | ||
98f204f4 | 1075 | unsigned char appleheader[32]; /* Raw page header */ |
dcd7f90e MS |
1076 | unsigned height = r->header.cupsHeight * r->rowheight; |
1077 | /* Computed page height */ | |
05fa7028 MS |
1078 | |
1079 | if (r->apple_page_count == 0xffffffffU) | |
1080 | { | |
1081 | /* | |
1082 | * Write raw page count from raster page header... | |
1083 | */ | |
1084 | ||
1085 | r->apple_page_count = r->header.cupsInteger[0]; | |
1086 | ||
1087 | appleheader[0] = 'A'; | |
1088 | appleheader[1] = 'S'; | |
1089 | appleheader[2] = 'T'; | |
1090 | appleheader[3] = 0; | |
1091 | appleheader[4] = (unsigned char)(r->apple_page_count >> 24); | |
1092 | appleheader[5] = (unsigned char)(r->apple_page_count >> 16); | |
1093 | appleheader[6] = (unsigned char)(r->apple_page_count >> 8); | |
1094 | appleheader[7] = (unsigned char)(r->apple_page_count); | |
1095 | ||
1096 | if (cups_raster_io(r, appleheader, 8) != 8) | |
1097 | return (0); | |
1098 | } | |
1099 | ||
1100 | memset(appleheader, 0, sizeof(appleheader)); | |
1101 | ||
1102 | appleheader[0] = (unsigned char)r->header.cupsBitsPerPixel; | |
1103 | appleheader[1] = r->header.cupsColorSpace == CUPS_CSPACE_SRGB ? 1 : | |
1104 | r->header.cupsColorSpace == CUPS_CSPACE_RGBW ? 2 : | |
1105 | r->header.cupsColorSpace == CUPS_CSPACE_ADOBERGB ? 3 : | |
1106 | r->header.cupsColorSpace == CUPS_CSPACE_W ? 4 : | |
1107 | r->header.cupsColorSpace == CUPS_CSPACE_RGB ? 5 : | |
1108 | r->header.cupsColorSpace == CUPS_CSPACE_CMYK ? 6 : 0; | |
1109 | appleheader[12] = (unsigned char)(r->header.cupsWidth >> 24); | |
1110 | appleheader[13] = (unsigned char)(r->header.cupsWidth >> 16); | |
1111 | appleheader[14] = (unsigned char)(r->header.cupsWidth >> 8); | |
1112 | appleheader[15] = (unsigned char)(r->header.cupsWidth); | |
dcd7f90e MS |
1113 | appleheader[16] = (unsigned char)(height >> 24); |
1114 | appleheader[17] = (unsigned char)(height >> 16); | |
1115 | appleheader[18] = (unsigned char)(height >> 8); | |
1116 | appleheader[19] = (unsigned char)(height); | |
05fa7028 MS |
1117 | appleheader[20] = (unsigned char)(r->header.HWResolution[0] >> 24); |
1118 | appleheader[21] = (unsigned char)(r->header.HWResolution[0] >> 16); | |
1119 | appleheader[22] = (unsigned char)(r->header.HWResolution[0] >> 8); | |
1120 | appleheader[23] = (unsigned char)(r->header.HWResolution[0]); | |
1121 | ||
1122 | return (cups_raster_io(r, appleheader, sizeof(appleheader)) == sizeof(appleheader)); | |
1123 | } | |
c8fef167 | 1124 | else |
f14324a7 | 1125 | return (cups_raster_io(r, (unsigned char *)&(r->header), sizeof(r->header)) |
c8fef167 | 1126 | == sizeof(r->header)); |
ef416fc2 | 1127 | } |
1128 | ||
1129 | ||
1130 | /* | |
dd204f7a | 1131 | * '_cupsRasterWritePixels()' - Write raster pixels. |
79e1d494 MS |
1132 | * |
1133 | * For best performance, filters should write one or more whole lines. | |
1134 | * The "cupsBytesPerLine" value from the page header can be used to allocate | |
1135 | * the line buffer and as the number of bytes to write. | |
ef416fc2 | 1136 | */ |
1137 | ||
1138 | unsigned /* O - Number of bytes written */ | |
dd204f7a MS |
1139 | _cupsRasterWritePixels( |
1140 | cups_raster_t *r, /* I - Raster stream */ | |
1141 | unsigned char *p, /* I - Bytes to write */ | |
1142 | unsigned len) /* I - Number of bytes to write */ | |
ef416fc2 | 1143 | { |
7e86f2f6 | 1144 | ssize_t bytes; /* Bytes read */ |
f7deaa1a | 1145 | unsigned remaining; /* Bytes remaining */ |
1146 | ||
1147 | ||
dd204f7a | 1148 | DEBUG_printf(("_cupsRasterWritePixels(r=%p, p=%p, len=%u), remaining=%u", (void *)r, (void *)p, len, r->remaining)); |
f301802f | 1149 | |
c8fef167 | 1150 | if (r == NULL || r->mode == CUPS_RASTER_READ || r->remaining == 0) |
ef416fc2 | 1151 | return (0); |
1152 | ||
f7deaa1a | 1153 | if (!r->compressed) |
1154 | { | |
1155 | /* | |
c8fef167 MS |
1156 | * Without compression, just write the raster data raw unless the data needs |
1157 | * to be swapped... | |
f7deaa1a | 1158 | */ |
1159 | ||
1160 | r->remaining -= len / r->header.cupsBytesPerLine; | |
1161 | ||
c8fef167 MS |
1162 | if (r->swapped && |
1163 | (r->header.cupsBitsPerColor == 16 || | |
1164 | r->header.cupsBitsPerPixel == 12 || | |
1165 | r->header.cupsBitsPerPixel == 16)) | |
1166 | { | |
1167 | unsigned char *bufptr; /* Pointer into write buffer */ | |
c8fef167 MS |
1168 | |
1169 | /* | |
1170 | * Allocate a write buffer as needed... | |
1171 | */ | |
1172 | ||
1173 | if ((size_t)len > r->bufsize) | |
1174 | { | |
1175 | if (r->buffer) | |
1176 | bufptr = realloc(r->buffer, len); | |
1177 | else | |
1178 | bufptr = malloc(len); | |
1179 | ||
1180 | if (!bufptr) | |
1181 | return (0); | |
1182 | ||
1183 | r->buffer = bufptr; | |
1184 | r->bufsize = len; | |
1185 | } | |
1186 | ||
1187 | /* | |
7c91db71 | 1188 | * Byte swap the pixels and write them... |
c8fef167 MS |
1189 | */ |
1190 | ||
7c91db71 | 1191 | cups_swap_copy(r->buffer, p, len); |
c8fef167 | 1192 | |
a5425f93 | 1193 | bytes = cups_raster_io(r, r->buffer, len); |
c8fef167 MS |
1194 | } |
1195 | else | |
a5425f93 MS |
1196 | bytes = cups_raster_io(r, p, len); |
1197 | ||
86206ccf | 1198 | if (bytes < (ssize_t)len) |
a5425f93 MS |
1199 | return (0); |
1200 | else | |
1201 | return (len); | |
f7deaa1a | 1202 | } |
1203 | ||
ed486911 | 1204 | /* |
f7deaa1a | 1205 | * Otherwise, compress each line... |
ed486911 | 1206 | */ |
ef416fc2 | 1207 | |
7e86f2f6 | 1208 | for (remaining = len; remaining > 0; remaining -= (unsigned)bytes, p += bytes) |
f7deaa1a | 1209 | { |
1210 | /* | |
1211 | * Figure out the number of remaining bytes on the current line... | |
1212 | */ | |
1213 | ||
7e86f2f6 MS |
1214 | if ((bytes = (ssize_t)remaining) > (ssize_t)(r->pend - r->pcurrent)) |
1215 | bytes = (ssize_t)(r->pend - r->pcurrent); | |
f7deaa1a | 1216 | |
1217 | if (r->count > 0) | |
1218 | { | |
1219 | /* | |
1220 | * Check to see if this line is the same as the previous line... | |
1221 | */ | |
1222 | ||
7e86f2f6 | 1223 | if (memcmp(p, r->pcurrent, (size_t)bytes)) |
f7deaa1a | 1224 | { |
a5425f93 | 1225 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 1226 | return (0); |
1227 | ||
1228 | r->count = 0; | |
1229 | } | |
1230 | else | |
1231 | { | |
1232 | /* | |
1233 | * Mark more bytes as the same... | |
1234 | */ | |
1235 | ||
1236 | r->pcurrent += bytes; | |
1237 | ||
1238 | if (r->pcurrent >= r->pend) | |
1239 | { | |
1240 | /* | |
1241 | * Increase the repeat count... | |
1242 | */ | |
1243 | ||
073e58a9 | 1244 | r->count += r->rowheight; |
f7deaa1a | 1245 | r->pcurrent = r->pixels; |
1246 | ||
1247 | /* | |
1248 | * Flush out this line if it is the last one... | |
1249 | */ | |
1250 | ||
1251 | r->remaining --; | |
1252 | ||
1253 | if (r->remaining == 0) | |
a5425f93 MS |
1254 | { |
1255 | if (cups_raster_write(r, r->pixels) <= 0) | |
1256 | return (0); | |
1257 | else | |
1258 | return (len); | |
1259 | } | |
073e58a9 | 1260 | else if (r->count > (256 - r->rowheight)) |
f7deaa1a | 1261 | { |
a5425f93 | 1262 | if (cups_raster_write(r, r->pixels) <= 0) |
f7deaa1a | 1263 | return (0); |
f301802f | 1264 | |
f7deaa1a | 1265 | r->count = 0; |
1266 | } | |
1267 | } | |
1268 | ||
1269 | continue; | |
1270 | } | |
1271 | } | |
1272 | ||
1273 | if (r->count == 0) | |
1274 | { | |
1275 | /* | |
1276 | * Copy the raster data to the buffer... | |
1277 | */ | |
1278 | ||
07623986 | 1279 | memcpy(r->pcurrent, p, (size_t)bytes); |
f7deaa1a | 1280 | |
1281 | r->pcurrent += bytes; | |
1282 | ||
1283 | if (r->pcurrent >= r->pend) | |
1284 | { | |
1285 | /* | |
1286 | * Increase the repeat count... | |
1287 | */ | |
1288 | ||
073e58a9 | 1289 | r->count += r->rowheight; |
f7deaa1a | 1290 | r->pcurrent = r->pixels; |
1291 | ||
1292 | /* | |
1293 | * Flush out this line if it is the last one... | |
1294 | */ | |
1295 | ||
1296 | r->remaining --; | |
1297 | ||
1298 | if (r->remaining == 0) | |
a5425f93 MS |
1299 | { |
1300 | if (cups_raster_write(r, r->pixels) <= 0) | |
1301 | return (0); | |
1302 | } | |
f7deaa1a | 1303 | } |
1304 | } | |
1305 | } | |
1306 | ||
1307 | return (len); | |
ef416fc2 | 1308 | } |
1309 | ||
1310 | ||
f14324a7 MS |
1311 | /* |
1312 | * 'cups_raster_io()' - Read/write bytes from a context, handling interruptions. | |
1313 | */ | |
1314 | ||
7e86f2f6 | 1315 | static ssize_t /* O - Bytes read/write or -1 */ |
83e08001 | 1316 | cups_raster_io(cups_raster_t *r, /* I - Raster stream */ |
7e86f2f6 MS |
1317 | unsigned char *buf, /* I - Buffer for read/write */ |
1318 | size_t bytes) /* I - Number of bytes to read/write */ | |
f14324a7 | 1319 | { |
7e86f2f6 MS |
1320 | ssize_t count, /* Number of bytes read/written */ |
1321 | total; /* Total bytes read/written */ | |
f14324a7 MS |
1322 | |
1323 | ||
807315e6 | 1324 | DEBUG_printf(("5cups_raster_io(r=%p, buf=%p, bytes=" CUPS_LLFMT ")", (void *)r, (void *)buf, CUPS_LLCAST bytes)); |
f14324a7 | 1325 | |
7e86f2f6 | 1326 | for (total = 0; total < (ssize_t)bytes; total += count, buf += count) |
f14324a7 | 1327 | { |
7e86f2f6 | 1328 | count = (*r->iocb)(r->ctx, buf, bytes - (size_t)total); |
f14324a7 | 1329 | |
a5425f93 | 1330 | DEBUG_printf(("6cups_raster_io: count=%d, total=%d", (int)count, (int)total)); |
f14324a7 | 1331 | if (count == 0) |
7c91db71 MS |
1332 | break; |
1333 | // { | |
1334 | // DEBUG_puts("6cups_raster_io: Returning 0."); | |
1335 | // return (0); | |
1336 | // } | |
f14324a7 | 1337 | else if (count < 0) |
a5425f93 MS |
1338 | { |
1339 | DEBUG_puts("6cups_raster_io: Returning -1 on error."); | |
f14324a7 | 1340 | return (-1); |
a5425f93 | 1341 | } |
d9564ec7 MS |
1342 | |
1343 | #ifdef DEBUG | |
1344 | r->iocount += (size_t)count; | |
1345 | #endif /* DEBUG */ | |
f14324a7 MS |
1346 | } |
1347 | ||
7c91db71 | 1348 | DEBUG_printf(("6cups_raster_io: iocount=" CUPS_LLFMT, CUPS_LLCAST r->iocount)); |
a5425f93 MS |
1349 | DEBUG_printf(("6cups_raster_io: Returning " CUPS_LLFMT ".", CUPS_LLCAST total)); |
1350 | ||
7e86f2f6 | 1351 | return (total); |
f14324a7 MS |
1352 | } |
1353 | ||
1354 | ||
ed486911 | 1355 | /* |
1356 | * 'cups_raster_read()' - Read through the raster buffer. | |
1357 | */ | |
1358 | ||
7e86f2f6 | 1359 | static ssize_t /* O - Number of bytes read */ |
ed486911 | 1360 | cups_raster_read(cups_raster_t *r, /* I - Raster stream */ |
1361 | unsigned char *buf, /* I - Buffer */ | |
7e86f2f6 | 1362 | size_t bytes) /* I - Number of bytes to read */ |
ed486911 | 1363 | { |
7e86f2f6 | 1364 | ssize_t count, /* Number of bytes read */ |
ed486911 | 1365 | remaining, /* Remaining bytes in buffer */ |
1366 | total; /* Total bytes read */ | |
1367 | ||
1368 | ||
7c91db71 | 1369 | DEBUG_printf(("4cups_raster_read(r=%p, buf=%p, bytes=" CUPS_LLFMT "), offset=" CUPS_LLFMT, (void *)r, (void *)buf, CUPS_LLCAST bytes, CUPS_LLCAST (r->iostart + r->bufptr - r->buffer))); |
ed486911 | 1370 | |
1371 | if (!r->compressed) | |
f14324a7 | 1372 | return (cups_raster_io(r, buf, bytes)); |
ed486911 | 1373 | |
1374 | /* | |
1375 | * Allocate a read buffer as needed... | |
1376 | */ | |
1377 | ||
7e86f2f6 | 1378 | count = (ssize_t)(2 * r->header.cupsBytesPerLine); |
d9564ec7 MS |
1379 | if (count < 65536) |
1380 | count = 65536; | |
ed486911 | 1381 | |
c8fef167 | 1382 | if ((size_t)count > r->bufsize) |
ed486911 | 1383 | { |
7e86f2f6 | 1384 | ssize_t offset = r->bufptr - r->buffer; |
a2326b5b | 1385 | /* Offset to current start of buffer */ |
7e86f2f6 | 1386 | ssize_t end = r->bufend - r->buffer;/* Offset to current end of buffer */ |
ed486911 | 1387 | unsigned char *rptr; /* Pointer in read buffer */ |
1388 | ||
1389 | if (r->buffer) | |
7e86f2f6 | 1390 | rptr = realloc(r->buffer, (size_t)count); |
ed486911 | 1391 | else |
7e86f2f6 | 1392 | rptr = malloc((size_t)count); |
ed486911 | 1393 | |
1394 | if (!rptr) | |
1395 | return (0); | |
1396 | ||
1397 | r->buffer = rptr; | |
1398 | r->bufptr = rptr + offset; | |
1399 | r->bufend = rptr + end; | |
7e86f2f6 | 1400 | r->bufsize = (size_t)count; |
ed486911 | 1401 | } |
1402 | ||
1403 | /* | |
1404 | * Loop until we have read everything... | |
1405 | */ | |
1406 | ||
a2326b5b | 1407 | for (total = 0, remaining = (int)(r->bufend - r->bufptr); |
7e86f2f6 | 1408 | total < (ssize_t)bytes; |
ed486911 | 1409 | total += count, buf += count) |
1410 | { | |
7e86f2f6 | 1411 | count = (ssize_t)bytes - total; |
ed486911 | 1412 | |
7c91db71 | 1413 | DEBUG_printf(("5cups_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 | 1414 | |
1415 | if (remaining == 0) | |
1416 | { | |
1417 | if (count < 16) | |
1418 | { | |
1419 | /* | |
1420 | * Read into the raster buffer and then copy... | |
1421 | */ | |
1422 | ||
7c91db71 MS |
1423 | #ifdef DEBUG |
1424 | r->iostart += (size_t)(r->bufend - r->buffer); | |
1425 | #endif /* DEBUG */ | |
1426 | ||
c8fef167 | 1427 | remaining = (*r->iocb)(r->ctx, r->buffer, r->bufsize); |
ed486911 | 1428 | if (remaining <= 0) |
1429 | return (0); | |
1430 | ||
1431 | r->bufptr = r->buffer; | |
1432 | r->bufend = r->buffer + remaining; | |
d9564ec7 MS |
1433 | |
1434 | #ifdef DEBUG | |
1435 | r->iocount += (size_t)remaining; | |
1436 | #endif /* DEBUG */ | |
ed486911 | 1437 | } |
1438 | else | |
1439 | { | |
1440 | /* | |
1441 | * Read directly into "buf"... | |
1442 | */ | |
1443 | ||
7e86f2f6 | 1444 | count = (*r->iocb)(r->ctx, buf, (size_t)count); |
ed486911 | 1445 | |
1446 | if (count <= 0) | |
1447 | return (0); | |
1448 | ||
d9564ec7 | 1449 | #ifdef DEBUG |
7c91db71 | 1450 | r->iostart += (size_t)count; |
d9564ec7 MS |
1451 | r->iocount += (size_t)count; |
1452 | #endif /* DEBUG */ | |
1453 | ||
ed486911 | 1454 | continue; |
1455 | } | |
1456 | } | |
1457 | ||
1458 | /* | |
1459 | * Copy bytes from raster buffer to "buf"... | |
1460 | */ | |
1461 | ||
1462 | if (count > remaining) | |
1463 | count = remaining; | |
1464 | ||
1465 | if (count == 1) | |
1466 | { | |
1467 | /* | |
1468 | * Copy 1 byte... | |
1469 | */ | |
1470 | ||
1471 | *buf = *(r->bufptr)++; | |
1472 | remaining --; | |
1473 | } | |
1474 | else if (count < 128) | |
1475 | { | |
1476 | /* | |
1477 | * Copy up to 127 bytes without using memcpy(); this is | |
1478 | * faster because it avoids an extra function call and is | |
1479 | * often further optimized by the compiler... | |
1480 | */ | |
1481 | ||
1482 | unsigned char *bufptr; /* Temporary buffer pointer */ | |
1483 | ||
ed486911 | 1484 | remaining -= count; |
1485 | ||
1486 | for (bufptr = r->bufptr; count > 0; count --, total ++) | |
1487 | *buf++ = *bufptr++; | |
1488 | ||
1489 | r->bufptr = bufptr; | |
1490 | } | |
1491 | else | |
1492 | { | |
1493 | /* | |
1494 | * Use memcpy() for a large read... | |
1495 | */ | |
1496 | ||
07623986 | 1497 | memcpy(buf, r->bufptr, (size_t)count); |
ed486911 | 1498 | r->bufptr += count; |
1499 | remaining -= count; | |
1500 | } | |
1501 | } | |
1502 | ||
7c91db71 | 1503 | DEBUG_printf(("5cups_raster_read: Returning %ld", (long)total)); |
590e44a4 | 1504 | |
ed486911 | 1505 | return (total); |
1506 | } | |
1507 | ||
1508 | ||
ef416fc2 | 1509 | /* |
1510 | * 'cups_raster_update()' - Update the raster header and row count for the | |
1511 | * current page. | |
1512 | */ | |
1513 | ||
3c0659cd | 1514 | static int /* O - 1 on success, 0 on failure */ |
ef416fc2 | 1515 | cups_raster_update(cups_raster_t *r) /* I - Raster stream */ |
1516 | { | |
f301802f | 1517 | if (r->sync == CUPS_RASTER_SYNCv1 || r->sync == CUPS_RASTER_REVSYNCv1 || |
1518 | r->header.cupsNumColors == 0) | |
ef416fc2 | 1519 | { |
1520 | /* | |
1521 | * Set the "cupsNumColors" field according to the colorspace... | |
1522 | */ | |
1523 | ||
1524 | switch (r->header.cupsColorSpace) | |
1525 | { | |
1526 | case CUPS_CSPACE_W : | |
1527 | case CUPS_CSPACE_K : | |
1528 | case CUPS_CSPACE_WHITE : | |
1529 | case CUPS_CSPACE_GOLD : | |
1530 | case CUPS_CSPACE_SILVER : | |
c7017ecc | 1531 | case CUPS_CSPACE_SW : |
ef416fc2 | 1532 | r->header.cupsNumColors = 1; |
1533 | break; | |
1534 | ||
ef416fc2 | 1535 | case CUPS_CSPACE_RGB : |
1536 | case CUPS_CSPACE_CMY : | |
1537 | case CUPS_CSPACE_YMC : | |
1538 | case CUPS_CSPACE_CIEXYZ : | |
1539 | case CUPS_CSPACE_CIELab : | |
c7017ecc MS |
1540 | case CUPS_CSPACE_SRGB : |
1541 | case CUPS_CSPACE_ADOBERGB : | |
f301802f | 1542 | case CUPS_CSPACE_ICC1 : |
1543 | case CUPS_CSPACE_ICC2 : | |
ef416fc2 | 1544 | case CUPS_CSPACE_ICC3 : |
f301802f | 1545 | case CUPS_CSPACE_ICC4 : |
1546 | case CUPS_CSPACE_ICC5 : | |
1547 | case CUPS_CSPACE_ICC6 : | |
1548 | case CUPS_CSPACE_ICC7 : | |
1549 | case CUPS_CSPACE_ICC8 : | |
1550 | case CUPS_CSPACE_ICC9 : | |
1551 | case CUPS_CSPACE_ICCA : | |
1552 | case CUPS_CSPACE_ICCB : | |
1553 | case CUPS_CSPACE_ICCC : | |
1554 | case CUPS_CSPACE_ICCD : | |
1555 | case CUPS_CSPACE_ICCE : | |
1556 | case CUPS_CSPACE_ICCF : | |
ef416fc2 | 1557 | r->header.cupsNumColors = 3; |
1558 | break; | |
1559 | ||
1560 | case CUPS_CSPACE_RGBA : | |
1561 | case CUPS_CSPACE_RGBW : | |
1562 | case CUPS_CSPACE_CMYK : | |
1563 | case CUPS_CSPACE_YMCK : | |
1564 | case CUPS_CSPACE_KCMY : | |
1565 | case CUPS_CSPACE_GMCK : | |
1566 | case CUPS_CSPACE_GMCS : | |
ef416fc2 | 1567 | r->header.cupsNumColors = 4; |
1568 | break; | |
1569 | ||
1570 | case CUPS_CSPACE_KCMYcm : | |
1571 | if (r->header.cupsBitsPerPixel < 8) | |
1572 | r->header.cupsNumColors = 6; | |
1573 | else | |
1574 | r->header.cupsNumColors = 4; | |
1575 | break; | |
c7017ecc MS |
1576 | |
1577 | case CUPS_CSPACE_DEVICE1 : | |
1578 | case CUPS_CSPACE_DEVICE2 : | |
1579 | case CUPS_CSPACE_DEVICE3 : | |
1580 | case CUPS_CSPACE_DEVICE4 : | |
1581 | case CUPS_CSPACE_DEVICE5 : | |
1582 | case CUPS_CSPACE_DEVICE6 : | |
1583 | case CUPS_CSPACE_DEVICE7 : | |
1584 | case CUPS_CSPACE_DEVICE8 : | |
1585 | case CUPS_CSPACE_DEVICE9 : | |
1586 | case CUPS_CSPACE_DEVICEA : | |
1587 | case CUPS_CSPACE_DEVICEB : | |
1588 | case CUPS_CSPACE_DEVICEC : | |
1589 | case CUPS_CSPACE_DEVICED : | |
1590 | case CUPS_CSPACE_DEVICEE : | |
1591 | case CUPS_CSPACE_DEVICEF : | |
1592 | r->header.cupsNumColors = r->header.cupsColorSpace - | |
1593 | CUPS_CSPACE_DEVICE1 + 1; | |
1594 | break; | |
3c0659cd MS |
1595 | |
1596 | default : | |
1597 | /* Unknown color space */ | |
1598 | return (0); | |
ef416fc2 | 1599 | } |
1600 | } | |
1601 | ||
1602 | /* | |
1603 | * Set the number of bytes per pixel/color... | |
1604 | */ | |
1605 | ||
1606 | if (r->header.cupsColorOrder == CUPS_ORDER_CHUNKED) | |
1607 | r->bpp = (r->header.cupsBitsPerPixel + 7) / 8; | |
1608 | else | |
1609 | r->bpp = (r->header.cupsBitsPerColor + 7) / 8; | |
1610 | ||
33076d24 MS |
1611 | if (r->bpp == 0) |
1612 | r->bpp = 1; | |
1613 | ||
ef416fc2 | 1614 | /* |
1615 | * Set the number of remaining rows... | |
1616 | */ | |
1617 | ||
1618 | if (r->header.cupsColorOrder == CUPS_ORDER_PLANAR) | |
1619 | r->remaining = r->header.cupsHeight * r->header.cupsNumColors; | |
1620 | else | |
1621 | r->remaining = r->header.cupsHeight; | |
1622 | ||
1623 | /* | |
ed486911 | 1624 | * Allocate the compression buffer... |
ef416fc2 | 1625 | */ |
1626 | ||
ed486911 | 1627 | if (r->compressed) |
1628 | { | |
1629 | if (r->pixels != NULL) | |
1630 | free(r->pixels); | |
ef416fc2 | 1631 | |
b9ce33c5 MS |
1632 | if ((r->pixels = calloc(r->header.cupsBytesPerLine, 1)) == NULL) |
1633 | { | |
1634 | r->pcurrent = NULL; | |
1635 | r->pend = NULL; | |
1636 | r->count = 0; | |
1637 | ||
1638 | return (0); | |
1639 | } | |
1640 | ||
ed486911 | 1641 | r->pcurrent = r->pixels; |
1642 | r->pend = r->pixels + r->header.cupsBytesPerLine; | |
1643 | r->count = 0; | |
1644 | } | |
58e9f268 MS |
1645 | |
1646 | return (1); | |
ef416fc2 | 1647 | } |
1648 | ||
1649 | ||
f7deaa1a | 1650 | /* |
1651 | * 'cups_raster_write()' - Write a row of compressed raster data... | |
1652 | */ | |
1653 | ||
7e86f2f6 | 1654 | static ssize_t /* O - Number of bytes written */ |
f7deaa1a | 1655 | cups_raster_write( |
1656 | cups_raster_t *r, /* I - Raster stream */ | |
1657 | const unsigned char *pixels) /* I - Pixel data to write */ | |
1658 | { | |
1659 | const unsigned char *start, /* Start of sequence */ | |
1660 | *ptr, /* Current pointer in sequence */ | |
1661 | *pend, /* End of raster buffer */ | |
1662 | *plast; /* Pointer to last pixel */ | |
1663 | unsigned char *wptr; /* Pointer into write buffer */ | |
7e86f2f6 | 1664 | unsigned bpp, /* Bytes per pixel */ |
1f0275e3 | 1665 | count; /* Count */ |
7c91db71 | 1666 | _cups_copyfunc_t cf; /* Copy function */ |
f7deaa1a | 1667 | |
1668 | ||
807315e6 | 1669 | DEBUG_printf(("3cups_raster_write(r=%p, pixels=%p)", (void *)r, (void *)pixels)); |
f7deaa1a | 1670 | |
1671 | /* | |
7c91db71 MS |
1672 | * Determine whether we need to swap bytes... |
1673 | */ | |
1674 | ||
1675 | if (r->swapped && (r->header.cupsBitsPerColor == 16 || r->header.cupsBitsPerPixel == 12 || r->header.cupsBitsPerPixel == 16)) | |
1676 | { | |
1677 | DEBUG_puts("4cups_raster_write: Swapping bytes when writing."); | |
1678 | cf = (_cups_copyfunc_t)cups_swap_copy; | |
1679 | } | |
1680 | else | |
1681 | cf = (_cups_copyfunc_t)memcpy; | |
1682 | ||
1683 | /* | |
f7deaa1a | 1684 | * Allocate a write buffer as needed... |
1685 | */ | |
1686 | ||
1687 | count = r->header.cupsBytesPerLine * 2; | |
a5425f93 MS |
1688 | if (count < 65536) |
1689 | count = 65536; | |
f8e5a7b4 | 1690 | |
c8fef167 | 1691 | if ((size_t)count > r->bufsize) |
f7deaa1a | 1692 | { |
1693 | if (r->buffer) | |
1694 | wptr = realloc(r->buffer, count); | |
1695 | else | |
1696 | wptr = malloc(count); | |
1697 | ||
1698 | if (!wptr) | |
a5425f93 MS |
1699 | { |
1700 | DEBUG_printf(("4cups_raster_write: Unable to allocate " CUPS_LLFMT " bytes for raster buffer: %s", CUPS_LLCAST count, strerror(errno))); | |
f7deaa1a | 1701 | return (-1); |
a5425f93 | 1702 | } |
f7deaa1a | 1703 | |
1704 | r->buffer = wptr; | |
1705 | r->bufsize = count; | |
1706 | } | |
1707 | ||
1708 | /* | |
1709 | * Write the row repeat count... | |
1710 | */ | |
1711 | ||
1712 | bpp = r->bpp; | |
1713 | pend = pixels + r->header.cupsBytesPerLine; | |
1714 | plast = pend - bpp; | |
1715 | wptr = r->buffer; | |
7e86f2f6 | 1716 | *wptr++ = (unsigned char)(r->count - 1); |
f7deaa1a | 1717 | |
1718 | /* | |
07ed0e9a | 1719 | * Write using a modified PackBits compression... |
f7deaa1a | 1720 | */ |
1721 | ||
1722 | for (ptr = pixels; ptr < pend;) | |
1723 | { | |
1724 | start = ptr; | |
1725 | ptr += bpp; | |
1726 | ||
1727 | if (ptr == pend) | |
1728 | { | |
1729 | /* | |
1730 | * Encode a single pixel at the end... | |
1731 | */ | |
1732 | ||
1733 | *wptr++ = 0; | |
7c91db71 MS |
1734 | (*cf)(wptr, start, bpp); |
1735 | wptr += bpp; | |
f7deaa1a | 1736 | } |
1737 | else if (!memcmp(start, ptr, bpp)) | |
1738 | { | |
1739 | /* | |
1740 | * Encode a sequence of repeating pixels... | |
1741 | */ | |
1742 | ||
1743 | for (count = 2; count < 128 && ptr < plast; count ++, ptr += bpp) | |
1744 | if (memcmp(ptr, ptr + bpp, bpp)) | |
1745 | break; | |
1746 | ||
7e86f2f6 | 1747 | *wptr++ = (unsigned char)(count - 1); |
7c91db71 MS |
1748 | (*cf)(wptr, ptr, bpp); |
1749 | wptr += bpp; | |
1750 | ptr += bpp; | |
f7deaa1a | 1751 | } |
1752 | else | |
1753 | { | |
1754 | /* | |
1755 | * Encode a sequence of non-repeating pixels... | |
1756 | */ | |
1757 | ||
07ed0e9a | 1758 | for (count = 1; count < 128 && ptr < plast; count ++, ptr += bpp) |
f7deaa1a | 1759 | if (!memcmp(ptr, ptr + bpp, bpp)) |
1760 | break; | |
1761 | ||
1762 | if (ptr >= plast && count < 128) | |
1763 | { | |
1764 | count ++; | |
1765 | ptr += bpp; | |
1766 | } | |
f14324a7 | 1767 | |
7e86f2f6 | 1768 | *wptr++ = (unsigned char)(257 - count); |
f7deaa1a | 1769 | |
1770 | count *= bpp; | |
7c91db71 | 1771 | (*cf)(wptr, start, count); |
f7deaa1a | 1772 | wptr += count; |
1773 | } | |
1774 | } | |
1775 | ||
a5425f93 MS |
1776 | DEBUG_printf(("4cups_raster_write: Writing " CUPS_LLFMT " bytes.", CUPS_LLCAST (wptr - r->buffer))); |
1777 | ||
7e86f2f6 | 1778 | return (cups_raster_io(r, r->buffer, (size_t)(wptr - r->buffer))); |
f7deaa1a | 1779 | } |
1780 | ||
1781 | ||
ed486911 | 1782 | /* |
1783 | * 'cups_swap()' - Swap bytes in raster data... | |
1784 | */ | |
1785 | ||
1786 | static void | |
1787 | cups_swap(unsigned char *buf, /* I - Buffer to swap */ | |
7e86f2f6 | 1788 | size_t bytes) /* I - Number of bytes to swap */ |
ed486911 | 1789 | { |
1790 | unsigned char even, odd; /* Temporary variables */ | |
1791 | ||
1792 | ||
1793 | bytes /= 2; | |
1794 | ||
1795 | while (bytes > 0) | |
1796 | { | |
1797 | even = buf[0]; | |
1798 | odd = buf[1]; | |
1799 | buf[0] = odd; | |
1800 | buf[1] = even; | |
1801 | ||
1802 | buf += 2; | |
1803 | bytes --; | |
1804 | } | |
1805 | } | |
1806 | ||
1807 | ||
7c91db71 MS |
1808 | /* |
1809 | * 'cups_swap_copy()' - Copy and swap bytes in raster data... | |
1810 | */ | |
1811 | ||
1812 | static void | |
1813 | cups_swap_copy( | |
1814 | unsigned char *dst, /* I - Destination */ | |
1815 | const unsigned char *src, /* I - Source */ | |
1816 | size_t bytes) /* I - Number of bytes to swap */ | |
1817 | { | |
1818 | bytes /= 2; | |
1819 | ||
1820 | while (bytes > 0) | |
1821 | { | |
1822 | dst[0] = src[1]; | |
1823 | dst[1] = src[0]; | |
1824 | ||
1825 | dst += 2; | |
1826 | src += 2; | |
1827 | bytes --; | |
1828 | } | |
1829 | } |