1 /* Copyright (C) 1998, 2000 artofcode LLC. All rights reserved.
2
3 This program is free software; you can redistribute it and/or modify it
4 under the terms of the GNU General Public License as published by the
5 Free Software Foundation; either version 2 of the License, or (at your
6 option) any later version.
7
8 This program is distributed in the hope that it will be useful, but
9 WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 General Public License for more details.
12
13 You should have received a copy of the GNU General Public License along
14 with this program; if not, write to the Free Software Foundation, Inc.,
15 59 Temple Place, Suite 330, Boston, MA, 02111-1307.
16
17 */
18
19 /*$Id: gxclrast.c,v 1.9.2.1.2.1 2003/01/17 00:49:03 giles Exp $ */
20 /* Command list interpreter/rasterizer */
21 #include "memory_.h"
22 #include "gx.h"
23 #include "gp.h" /* for gp_fmode_rb */
24 #include "gpcheck.h"
25 #include "gscdefs.h" /* for image type table */
26 #include "gserrors.h"
27 #include "gsbitops.h"
28 #include "gsparams.h"
29 #include "gsstate.h" /* (should only be imager state) */
30 #include "gxdcolor.h"
31 #include "gxdevice.h"
32 #include "gscoord.h" /* requires gsmatrix.h */
33 #include "gsdevice.h" /* for gs_deviceinitialmatrix */
34 #include "gsiparm4.h"
35 #include "gxdevmem.h" /* must precede gxcldev.h */
36 #include "gxcldev.h"
37 #include "gxclpath.h"
38 #include "gxcmap.h"
39 #include "gxcolor2.h"
40 #include "gxcspace.h" /* for gs_color_space_type */
41 #include "gxdhtres.h"
42 #include "gxgetbit.h"
43 #include "gxpaint.h" /* for gx_fill/stroke_params */
44 #include "gxhttile.h"
45 #include "gxiparam.h"
46 #include "gdevht.h"
47 #include "gzpath.h"
48 #include "gzcpath.h"
49 #include "gzacpath.h"
50 #include "stream.h"
51 #include "strimpl.h"
52
53 extern_gx_device_halftone_list();
54 extern_gx_image_type_table();
55
56 /* We need color space types for constructing temporary color spaces. */
57 extern const gs_color_space_type gs_color_space_type_Indexed;
58
59 /* Print a bitmap for tracing */
60 #ifdef DEBUG
61 private void
cmd_print_bits(const byte * data,int width,int height,int raster)62 cmd_print_bits(const byte * data, int width, int height, int raster)
63 {
64 int i, j;
65
66 dlprintf3("[L]width=%d, height=%d, raster=%d\n",
67 width, height, raster);
68 for (i = 0; i < height; i++) {
69 const byte *row = data + i * raster;
70
71 dlprintf("[L]");
72 for (j = 0; j < raster; j++)
73 dprintf1(" %02x", row[j]);
74 dputc('\n');
75 }
76 }
77 #else
78 # define cmd_print_bits(data, width, height, raster) DO_NOTHING
79 #endif
80
81 /* Get a variable-length integer operand. */
82 #define cmd_getw(var, p)\
83 BEGIN\
84 if ( *p < 0x80 ) var = *p++;\
85 else { const byte *_cbp; var = cmd_get_w(p, &_cbp); p = _cbp; }\
86 END
87 private long
cmd_get_w(const byte * p,const byte ** rp)88 cmd_get_w(const byte * p, const byte ** rp)
89 {
90 int val = *p++ & 0x7f;
91 int shift = 7;
92
93 for (; val += (int)(*p & 0x7f) << shift, *p++ > 0x7f; shift += 7);
94 *rp = p;
95 return val;
96 }
97
98 /*
99 * Define the structure for keeping track of the command reading buffer.
100 *
101 * The ptr member is only used for passing the current pointer to, and
102 * receiving an updated pointer from, commands implemented as separate
103 * procedures: normally it is kept in a register.
104 */
105 typedef struct command_buf_s {
106 byte *data; /* actual buffer, guaranteed aligned */
107 uint size;
108 const byte *ptr; /* next byte to be read (see above) */
109 const byte *limit; /* refill warning point */
110 const byte *end; /* byte just beyond valid data */
111 stream *s; /* for refilling buffer */
112 int end_status;
113 } command_buf_t;
114
115 /* Set the end of a command buffer. */
116 private void
set_cb_end(command_buf_t * pcb,const byte * end)117 set_cb_end(command_buf_t *pcb, const byte *end)
118 {
119 pcb->end = end;
120 pcb->limit = pcb->data + (pcb->size - cmd_largest_size + 1);
121 if ( pcb->limit > pcb->end )
122 pcb->limit = pcb->end;
123 }
124
125 /* Read more data into a command buffer. */
126 private const byte *
top_up_cbuf(command_buf_t * pcb,const byte * cbp)127 top_up_cbuf(command_buf_t *pcb, const byte *cbp)
128 {
129 uint nread;
130 byte *cb_top = pcb->data + (pcb->end - cbp);
131
132 memmove(pcb->data, cbp, pcb->end - cbp);
133 nread = pcb->end - cb_top;
134 pcb->end_status = sgets(pcb->s, cb_top, nread, &nread);
135 if ( nread == 0 ) {
136 /* No data for this band at all. */
137 *cb_top = cmd_opv_end_run;
138 nread = 1;
139 }
140 set_cb_end(pcb, cb_top + nread);
141 process_interrupts();
142 return pcb->data;
143 }
144
145 /* Read data from the command buffer and stream. */
146 private const byte *
cmd_read_data(command_buf_t * pcb,byte * ptr,uint rsize,const byte * cbp)147 cmd_read_data(command_buf_t *pcb, byte *ptr, uint rsize, const byte *cbp)
148 {
149 if (pcb->end - cbp >= rsize) {
150 memcpy(ptr, cbp, rsize);
151 return cbp + rsize;
152 } else {
153 uint cleft = pcb->end - cbp;
154 uint rleft = rsize - cleft;
155
156 memcpy(ptr, cbp, cleft);
157 sgets(pcb->s, ptr + cleft, rleft, &rleft);
158 return pcb->end;
159 }
160 }
161 #define cmd_read(ptr, rsize, cbp)\
162 cbp = cmd_read_data(&cbuf, ptr, rsize, cbp)
163
164 /* Read a fixed-size value from the command buffer. */
165 inline private const byte *
cmd_copy_value(void * pvar,int var_size,const byte * cbp)166 cmd_copy_value(void *pvar, int var_size, const byte *cbp)
167 {
168 memcpy(pvar, cbp, var_size);
169 return cbp + var_size;
170 }
171 #define cmd_get_value(var, cbp)\
172 cbp = cmd_copy_value(&var, sizeof(var), cbp)
173
174 /*
175 * Render one band to a specified target device. Note that if
176 * action == setup, target may be 0.
177 */
178 private int read_set_tile_size(P2(command_buf_t *pcb, tile_slot *bits));
179 private int read_set_bits(P8(command_buf_t *pcb, tile_slot *bits,
180 int compress, gx_clist_state *pcls,
181 gx_strip_bitmap *tile, tile_slot **pslot,
182 gx_device_clist_reader *cdev, gs_memory_t *mem));
183 private int read_set_ht_order(P4(command_buf_t *pcb,
184 gx_device_halftone **ppdht,
185 gx_ht_order **pporder, gs_memory_t *mem));
186 private int read_set_ht_data(P7(command_buf_t *pcb, uint *pdata_index,
187 gx_ht_order *porder,
188 gs_halftone_type halftone_type,
189 gs_imager_state *pis,
190 gx_device_clist_reader *cdev,
191 gs_memory_t *mem));
192 private int read_set_misc2(P3(command_buf_t *pcb, gs_imager_state *pis,
193 segment_notes *pnotes));
194 private int read_set_color_space(P5(command_buf_t *pcb, gs_imager_state *pis,
195 const gs_color_space **ppcs,
196 gs_color_space *pcolor_space,
197 gs_memory_t *mem));
198 private int read_begin_image(P3(command_buf_t *pcb, gs_image_common_t *pic,
199 const gs_color_space *pcs));
200 private int read_put_params(P4(command_buf_t *pcb, gs_imager_state *pis,
201 gx_device_clist_reader *cdev,
202 gs_memory_t *mem));
203
204 private const byte *cmd_read_rect(P3(int, gx_cmd_rect *, const byte *));
205 private const byte *cmd_read_matrix(P2(gs_matrix *, const byte *));
206 private const byte *cmd_read_short_bits(P6(command_buf_t *pcb, byte *data,
207 int width_bytes, int height,
208 uint raster, const byte *cbp));
209 private int cmd_select_map(P7(cmd_map_index, cmd_map_contents,
210 gs_imager_state *, gx_ht_order *, frac **,
211 uint *, gs_memory_t *));
212 private int cmd_create_dev_ht(P2(gx_device_halftone **, gs_memory_t *));
213 private int cmd_resize_halftone(P3(gx_device_halftone **, uint,
214 gs_memory_t *));
215 private int clist_decode_segment(P7(gx_path *, int, fixed[6],
216 gs_fixed_point *, int, int,
217 segment_notes));
218 private int clist_do_polyfill(P4(gx_device *, gx_path *,
219 const gx_drawing_color *,
220 gs_logical_operation_t));
221
222 int
clist_playback_band(clist_playback_action playback_action,gx_device_clist_reader * cdev,stream * s,gx_device * target,int x0,int y0,gs_memory_t * mem)223 clist_playback_band(clist_playback_action playback_action,
224 gx_device_clist_reader *cdev, stream *s,
225 gx_device *target, int x0, int y0, gs_memory_t * mem)
226 {
227 /* cbuf must be maximally aligned, but still be a byte *. */
228 typedef union { void *p; double d; long l; } aligner_t;
229 aligner_t cbuf_storage[cbuf_size / sizeof(aligner_t) + 1];
230 command_buf_t cbuf;
231 /* data_bits is for short copy_* bits and copy_* compressed, */
232 /* must be aligned */
233 #define data_bits_size cbuf_size
234 byte *data_bits = 0;
235 register const byte *cbp;
236 int dev_depth = cdev->color_info.depth;
237 int dev_depth_bytes = (dev_depth + 7) >> 3;
238 gx_device *tdev;
239 gx_clist_state state;
240 gx_color_index *set_colors;
241 tile_slot *state_slot;
242 gx_strip_bitmap state_tile; /* parameters for reading tiles */
243 tile_slot tile_bits; /* parameters of current tile */
244 gs_int_point tile_phase, color_phase;
245 gx_path path;
246 bool in_path;
247 gs_fixed_point ppos;
248 gx_clip_path clip_path;
249 bool use_clip;
250 gx_clip_path *pcpath;
251 gx_device_cpath_accum clip_accum;
252 gs_fixed_rect target_box;
253 struct _cas {
254 bool lop_enabled;
255 gs_fixed_point fill_adjust;
256 } clip_save;
257 gs_imager_state imager_state;
258 gx_device_color dev_color;
259 float dash_pattern[cmd_max_dash];
260 gx_fill_params fill_params;
261 gx_stroke_params stroke_params;
262 gs_halftone_type halftone_type;
263 gx_ht_order *porder;
264 uint ht_data_index;
265 union im_ {
266 gs_image_common_t c;
267 gs_data_image_t d;
268 gs_image1_t i1;
269 gs_image4_t i4;
270 } image;
271 gs_int_rect image_rect;
272 gs_color_space color_space; /* only used for indexed spaces */
273 const gs_color_space *pcs;
274 gx_image_enum_common_t *image_info;
275 gx_image_plane_t planes[32];
276 uint data_height;
277 uint data_size;
278 byte *data_on_heap;
279 fixed vs[6];
280 segment_notes notes;
281 int data_x;
282 int code = 0;
283
284 cbuf.data = (byte *)cbuf_storage;
285 cbuf.size = cbuf_size;
286 cbuf.s = s;
287 cbuf.end_status = 0;
288 set_cb_end(&cbuf, cbuf.data + cbuf.size);
289 cbp = cbuf.end;
290 in: /* Initialize for a new page. */
291 tdev = target;
292 set_colors = state.colors;
293 use_clip = false;
294 pcpath = NULL;
295 notes = sn_none;
296 data_x = 0;
297 {
298 static const gx_clist_state cls_initial = { cls_initial_values };
299
300 state = cls_initial;
301 }
302 state_tile.id = gx_no_bitmap_id;
303 state_tile.shift = state_tile.rep_shift = 0;
304 tile_phase.x = color_phase.x = x0;
305 tile_phase.y = color_phase.y = y0;
306 gx_path_init_local(&path, mem);
307 in_path = false;
308 /*
309 * Initialize the clipping region to the full page.
310 * (Since we also initialize use_clip to false, this is arbitrary.)
311 */
312 {
313 gs_fixed_rect cbox;
314
315 gx_cpath_init_local(&clip_path, mem);
316 cbox.p.x = 0;
317 cbox.p.y = 0;
318 cbox.q.x = cdev->width;
319 cbox.q.y = cdev->height;
320 gx_cpath_from_rectangle(&clip_path, &cbox);
321 }
322 if (target != 0)
323 (*dev_proc(target, get_clipping_box))(target, &target_box);
324 imager_state = clist_imager_state_initial;
325 code = gs_imager_state_initialize(&imager_state, mem);
326 if (code < 0)
327 goto out;
328 imager_state.line_params.dash.pattern = dash_pattern;
329 if (tdev != 0)
330 gx_set_cmap_procs(&imager_state, tdev);
331 gx_imager_setscreenphase(&imager_state, -x0, -y0, gs_color_select_all);
332 halftone_type = ht_type_none;
333 fill_params.fill_zero_width = false;
334 pcs = gs_cspace_DeviceGray(&imager_state);
335 color_space.params.indexed.use_proc = 0;
336 color_space.params.indexed.lookup.table.size = 0;
337 data_bits = gs_alloc_bytes(mem, data_bits_size,
338 "clist_playback_band(data_bits)");
339 if (data_bits == 0) {
340 code = gs_note_error(gs_error_VMerror);
341 goto out;
342 }
343 while (code >= 0) {
344 int op;
345 int compress, depth, raster;
346 byte *source;
347 gx_color_index colors[2];
348 gx_color_index *pcolor;
349 gs_logical_operation_t log_op;
350 tile_slot bits; /* parameters for reading bits */
351
352 /* Make sure the buffer contains a full command. */
353 if (cbp >= cbuf.limit) {
354 if (cbuf.end_status < 0) { /* End of file or error. */
355 if (cbp == cbuf.end) {
356 code = (cbuf.end_status == EOFC ? 0 :
357 gs_note_error(gs_error_ioerror));
358 break;
359 }
360 } else {
361 cbp = top_up_cbuf(&cbuf, cbp);
362 }
363 }
364 op = *cbp++;
365 #ifdef DEBUG
366 if (gs_debug_c('L')) {
367 const char *const *sub = cmd_sub_op_names[op >> 4];
368
369 if (sub)
370 dlprintf1("[L]%s:", sub[op & 0xf]);
371 else
372 dlprintf2("[L]%s %d:", cmd_op_names[op >> 4], op & 0xf);
373 }
374 #endif
375 switch (op >> 4) {
376 case cmd_op_misc >> 4:
377 switch (op) {
378 case cmd_opv_end_run:
379 if_debug0('L', "\n");
380 continue;
381 case cmd_opv_set_tile_size:
382 cbuf.ptr = cbp;
383 code = read_set_tile_size(&cbuf, &tile_bits);
384 cbp = cbuf.ptr;
385 if (code < 0)
386 goto out;
387 continue;
388 case cmd_opv_set_tile_phase:
389 cmd_getw(state.tile_phase.x, cbp);
390 cmd_getw(state.tile_phase.y, cbp);
391 if_debug2('L', " (%d,%d)\n",
392 state.tile_phase.x,
393 state.tile_phase.y);
394 goto set_phase;
395 case cmd_opv_set_tile_bits:
396 bits = tile_bits;
397 compress = 0;
398 stb:
399 cbuf.ptr = cbp;
400 code = read_set_bits(&cbuf, &bits, compress,
401 &state, &state_tile, &state_slot,
402 cdev, mem);
403 cbp = cbuf.ptr;
404 if (code < 0)
405 goto out;
406 goto stp;
407 case cmd_opv_set_bits:
408 compress = *cbp & 3;
409 bits.cb_depth = *cbp++ >> 2;
410 cmd_getw(bits.width, cbp);
411 cmd_getw(bits.height, cbp);
412 if_debug4('L', " compress=%d depth=%d size=(%d,%d)",
413 compress, bits.cb_depth,
414 bits.width, bits.height);
415 bits.cb_raster =
416 bitmap_raster(bits.width * bits.cb_depth);
417 bits.x_reps = bits.y_reps = 1;
418 bits.shift = bits.rep_shift = 0;
419 goto stb;
420 case cmd_opv_set_tile_color:
421 set_colors = state.tile_colors;
422 if_debug0('L', "\n");
423 continue;
424 case cmd_opv_set_misc:
425 {
426 uint cb = *cbp++;
427
428 switch (cb >> 6) {
429 case cmd_set_misc_lop >> 6:
430 cmd_getw(state.lop, cbp);
431 state.lop = (state.lop << 6) + (cb & 0x3f);
432 if_debug1('L', " lop=0x%x\n", state.lop);
433 if (state.lop_enabled)
434 imager_state.log_op = state.lop;
435 break;
436 case cmd_set_misc_data_x >> 6:
437 if (cb & 0x20)
438 cmd_getw(data_x, cbp);
439 else
440 data_x = 0;
441 data_x = (data_x << 5) + (cb & 0x1f);
442 if_debug1('L', " data_x=%d\n", data_x);
443 break;
444 case cmd_set_misc_map >> 6:
445 {
446 frac *mdata;
447 uint count;
448 cmd_map_contents cont =
449 (cmd_map_contents)(cb & 0x30) >> 4;
450
451 code = cmd_select_map(cb & 0xf, cont,
452 &imager_state,
453 porder, &mdata,
454 &count, mem);
455
456 if (code < 0)
457 goto out;
458 if (cont == cmd_map_other) {
459 cmd_read((byte *)mdata, count, cbp);
460 #ifdef DEBUG
461 if (gs_debug_c('L')) {
462 uint i;
463
464 for (i = 0; i < count / sizeof(*mdata); ++i)
465 dprintf1(" 0x%04x", mdata[i]);
466 dputc('\n');
467 }
468 } else {
469 if_debug0('L', " none\n");
470 #endif
471 }
472 }
473 /* Recompute the effective transfer, */
474 /* in case this was a transfer map. */
475 gx_imager_set_effective_xfer(
476 &imager_state);
477 break;
478 case cmd_set_misc_halftone >> 6: {
479 uint num_comp;
480
481 halftone_type = cb & 0x3f;
482 cmd_getw(num_comp, cbp);
483 if_debug2('L', " halftone type=%d num_comp=%u\n",
484 halftone_type, num_comp);
485 code = cmd_resize_halftone(
486 &imager_state.dev_ht,
487 num_comp, mem);
488 if (code < 0)
489 goto out;
490 break;
491 }
492 default:
493 goto bad_op;
494 }
495 }
496 continue;
497 case cmd_opv_enable_lop:
498 state.lop_enabled = true;
499 imager_state.log_op = state.lop;
500 if_debug0('L', "\n");
501 continue;
502 case cmd_opv_disable_lop:
503 state.lop_enabled = false;
504 imager_state.log_op = lop_default;
505 if_debug0('L', "\n");
506 continue;
507 case cmd_opv_set_ht_order:
508 cbuf.ptr = cbp;
509 code = read_set_ht_order(&cbuf, &imager_state.dev_ht,
510 &porder, mem);
511 cbp = cbuf.ptr;
512 if (code < 0)
513 goto out;
514 ht_data_index = 0;
515 /*
516 * Free the relevant cache, because its sizes
517 * are probably not correct any more.
518 */
519 {
520 gx_ht_cache *pcache = porder->cache;
521
522 if (pcache) {
523 if (pcache != imager_state.ht_cache)
524 gx_ht_free_cache(mem, pcache);
525 porder->cache = 0;
526 }
527 }
528 continue;
529 case cmd_opv_set_ht_data:
530 cbuf.ptr = cbp;
531 code = read_set_ht_data(&cbuf, &ht_data_index, porder,
532 halftone_type,
533 &imager_state, cdev, mem);
534 cbp = cbuf.ptr;
535 if (code < 0)
536 goto out;
537 continue;
538 case cmd_opv_end_page:
539 if_debug0('L', "\n");
540 /*
541 * Do end-of-page cleanup, then reinitialize if
542 * there are more pages to come.
543 */
544 goto out;
545 case cmd_opv_delta2_color0:
546 pcolor = &set_colors[0];
547 goto delta2_c;
548 case cmd_opv_delta2_color1:
549 pcolor = &set_colors[1];
550 delta2_c:set_colors = state.colors;
551 {
552 gx_color_index b = ((uint) * cbp << 8) + cbp[1];
553
554 cbp += 2;
555 if (dev_depth > 24)
556 *pcolor +=
557 ((b & 0xf000) << 12) + ((b & 0x0f00) << 8) +
558 ((b & 0x00f0) << 4) + (b & 0x000f) -
559 cmd_delta2_32_bias;
560 else
561 *pcolor +=
562 ((b & 0xf800) << 5) + ((b & 0x07e0) << 3) +
563 (b & 0x001f) - cmd_delta2_24_bias;
564 }
565 if_debug1('L', " 0x%lx\n", *pcolor);
566 continue;
567 case cmd_opv_set_copy_color:
568 state.color_is_alpha = 0;
569 if_debug0('L', "\n");
570 continue;
571 case cmd_opv_set_copy_alpha:
572 state.color_is_alpha = 1;
573 if_debug0('L', "\n");
574 continue;
575 default:
576 goto bad_op;
577 }
578 /*NOTREACHED */
579 case cmd_op_set_color0 >> 4:
580 pcolor = &set_colors[0];
581 goto set_color;
582 case cmd_op_set_color1 >> 4:
583 pcolor = &set_colors[1];
584 set_color:set_colors = state.colors;
585 switch (op & 0xf) {
586 case 0:
587 break;
588 case 15: /* special handling because this may */
589 /* require more bits than depth */
590 *pcolor = gx_no_color_index;
591 goto setc;
592 default:
593 switch (dev_depth_bytes) {
594 case 4:
595 {
596 gx_color_index b =
597 ((gx_color_index) (op & 0xf) << 8) + *cbp++;
598
599 *pcolor +=
600 ((b & 07000) << 15) + ((b & 0700) << 10) +
601 ((b & 070) << 5) + (b & 7) -
602 cmd_delta1_32_bias;
603 goto setc;
604 }
605 case 3:
606 {
607 gx_color_index b = *cbp++;
608
609 *pcolor +=
610 ((gx_color_index) (op & 0xf) << 16) +
611 ((b & 0xf0) << 4) + (b & 0x0f) -
612 cmd_delta1_24_bias;
613 goto setc;
614 }
615 case 2:
616 break;
617 case 1:
618 *pcolor += (gx_color_index) (op & 0xf) - 8;
619 goto setc;
620 }
621 }
622 {
623 gx_color_index color = 0;
624
625 switch (dev_depth_bytes) {
626 case 4:
627 color |= (gx_color_index) * cbp++ << 24;
628 case 3:
629 color |= (gx_color_index) * cbp++ << 16;
630 case 2:
631 color |= (gx_color_index) * cbp++ << 8;
632 case 1:
633 color |= (gx_color_index) * cbp++;
634 }
635 *pcolor = color;
636 }
637 setc:if_debug1('L', " 0x%lx\n", *pcolor);
638 continue;
639 case cmd_op_fill_rect >> 4:
640 case cmd_op_tile_rect >> 4:
641 cbp = cmd_read_rect(op, &state.rect, cbp);
642 break;
643 case cmd_op_fill_rect_short >> 4:
644 case cmd_op_tile_rect_short >> 4:
645 state.rect.x += *cbp + cmd_min_short;
646 state.rect.width += cbp[1] + cmd_min_short;
647 if (op & 0xf) {
648 state.rect.height += (op & 0xf) + cmd_min_dxy_tiny;
649 cbp += 2;
650 } else {
651 state.rect.y += cbp[2] + cmd_min_short;
652 state.rect.height += cbp[3] + cmd_min_short;
653 cbp += 4;
654 }
655 break;
656 case cmd_op_fill_rect_tiny >> 4:
657 case cmd_op_tile_rect_tiny >> 4:
658 if (op & 8)
659 state.rect.x += state.rect.width;
660 else {
661 int txy = *cbp++;
662
663 state.rect.x += (txy >> 4) + cmd_min_dxy_tiny;
664 state.rect.y += (txy & 0xf) + cmd_min_dxy_tiny;
665 }
666 state.rect.width += (op & 7) + cmd_min_dw_tiny;
667 break;
668 case cmd_op_copy_mono >> 4:
669 depth = 1;
670 goto copy;
671 case cmd_op_copy_color_alpha >> 4:
672 if (state.color_is_alpha) {
673 if (!(op & 8))
674 depth = *cbp++;
675 } else
676 depth = dev_depth;
677 copy:cmd_getw(state.rect.x, cbp);
678 cmd_getw(state.rect.y, cbp);
679 if (op & 8) { /* Use the current "tile". */
680 #ifdef DEBUG
681 if (state_slot->index != state.tile_index) {
682 lprintf2("state_slot->index = %d, state.tile_index = %d!\n",
683 state_slot->index,
684 state.tile_index);
685 code = gs_note_error(gs_error_ioerror);
686 goto out;
687 }
688 #endif
689 depth = state_slot->cb_depth;
690 state.rect.width = state_slot->width;
691 state.rect.height = state_slot->height;
692 raster = state_slot->cb_raster;
693 source = (byte *) (state_slot + 1);
694 } else { /* Read width, height, bits. */
695 /* depth was set already. */
696 uint width_bits, width_bytes;
697 uint bytes;
698
699 cmd_getw(state.rect.width, cbp);
700 cmd_getw(state.rect.height, cbp);
701 width_bits = state.rect.width * depth;
702 bytes =
703 clist_bitmap_bytes(width_bits,
704 state.rect.height,
705 op & 3, &width_bytes,
706 (uint *)&raster);
707 /* copy_mono and copy_color/alpha */
708 /* ensure that the bits will fit in a single buffer, */
709 /* even after decompression if compressed. */
710 #ifdef DEBUG
711 if (bytes > cbuf_size) {
712 lprintf6("bitmap size exceeds buffer! width=%d raster=%d height=%d\n file pos %ld buf pos %d/%d\n",
713 state.rect.width, raster,
714 state.rect.height,
715 stell(s), (int)(cbp - cbuf.data),
716 (int)(cbuf.end - cbuf.data));
717 code = gs_note_error(gs_error_ioerror);
718 goto out;
719 }
720 #endif
721 if (op & 3) { /* Decompress the image data. */
722 stream_cursor_read r;
723 stream_cursor_write w;
724
725 /* We don't know the data length a priori, */
726 /* so to be conservative, we read */
727 /* the uncompressed size. */
728 uint cleft = cbuf.end - cbp;
729
730 if (cleft < bytes) {
731 uint nread = cbuf_size - cleft;
732
733 memmove(cbuf.data, cbp, cleft);
734 cbuf.end_status = sgets(s, cbuf.data + cleft, nread, &nread);
735 set_cb_end(&cbuf, cbuf.data + cleft + nread);
736 cbp = cbuf.data;
737 }
738 r.ptr = cbp - 1;
739 r.limit = cbuf.end - 1;
740 w.ptr = data_bits - 1;
741 w.limit = w.ptr + data_bits_size;
742 switch (op & 3) {
743 case cmd_compress_rle:
744 {
745 stream_RLD_state sstate;
746
747 clist_rld_init(&sstate);
748 /* The process procedure can't fail. */
749 (*s_RLD_template.process)
750 ((stream_state *)&sstate, &r, &w, true);
751 }
752 break;
753 case cmd_compress_cfe:
754 {
755 stream_CFD_state sstate;
756
757 clist_cfd_init(&sstate,
758 width_bytes << 3 /*state.rect.width */ ,
759 state.rect.height, mem);
760 /* The process procedure can't fail. */
761 (*s_CFD_template.process)
762 ((stream_state *)&sstate, &r, &w, true);
763 (*s_CFD_template.release)
764 ((stream_state *)&sstate);
765 }
766 break;
767 default:
768 goto bad_op;
769 }
770 cbp = r.ptr + 1;
771 source = data_bits;
772 } else if (state.rect.height > 1 &&
773 width_bytes != raster
774 ) {
775 source = data_bits;
776 cbp = cmd_read_short_bits(&cbuf, source, width_bytes,
777 state.rect.height,
778 raster, cbp);
779 } else {
780 cmd_read(cbuf.data, bytes, cbp);
781 source = cbuf.data;
782 }
783 #ifdef DEBUG
784 if (gs_debug_c('L')) {
785 dprintf2(" depth=%d, data_x=%d\n",
786 depth, data_x);
787 cmd_print_bits(source, state.rect.width,
788 state.rect.height, raster);
789 }
790 #endif
791 }
792 break;
793 case cmd_op_delta_tile_index >> 4:
794 state.tile_index += (int)(op & 0xf) - 8;
795 goto sti;
796 case cmd_op_set_tile_index >> 4:
797 state.tile_index =
798 ((op & 0xf) << 8) + *cbp++;
799 sti:state_slot =
800 (tile_slot *) (cdev->chunk.data +
801 cdev->tile_table[state.tile_index].offset);
802 if_debug2('L', " index=%u offset=%lu\n",
803 state.tile_index,
804 cdev->tile_table[state.tile_index].offset);
805 state_tile.data = (byte *) (state_slot + 1);
806 stp:state_tile.size.x = state_slot->width;
807 state_tile.size.y = state_slot->height;
808 state_tile.raster = state_slot->cb_raster;
809 state_tile.rep_width = state_tile.size.x /
810 state_slot->x_reps;
811 state_tile.rep_height = state_tile.size.y /
812 state_slot->y_reps;
813 state_tile.rep_shift = state_slot->rep_shift;
814 state_tile.shift = state_slot->shift;
815 set_phase: /*
816 * state.tile_phase is overloaded according to the command
817 * to which it will apply:
818 * For fill_path, stroke_path, fill_triangle/p'gram,
819 * fill_mask, and (mask or CombineWithColor) images,
820 * it is pdcolor->phase. For these operations, we
821 * precompute the color_phase values.
822 * For strip_tile_rectangle and strip_copy_rop,
823 * it is the phase arguments of the call, used with
824 * state_tile. For these operations, we precompute the
825 * tile_phase values.
826 *
827 * Note that control may get here before one or both of
828 * state_tile or dev_ht has been set.
829 */
830 if (state_tile.size.x)
831 tile_phase.x =
832 (state.tile_phase.x + x0) % state_tile.size.x;
833 if (imager_state.dev_ht && imager_state.dev_ht->lcm_width)
834 color_phase.x =
835 (state.tile_phase.x + x0) %
836 imager_state.dev_ht->lcm_width;
837 /*
838 * The true tile height for shifted tiles is not
839 * size.y: see gxbitmap.h for the computation.
840 */
841 if (state_tile.size.y) {
842 int full_height;
843
844 if (state_tile.shift == 0)
845 full_height = state_tile.size.y;
846 else
847 full_height = state_tile.rep_height *
848 (state_tile.rep_width /
849 igcd(state_tile.rep_shift,
850 state_tile.rep_width));
851 tile_phase.y =
852 (state.tile_phase.y + y0) % full_height;
853 }
854 if (imager_state.dev_ht && imager_state.dev_ht->lcm_height)
855 color_phase.y =
856 (state.tile_phase.y + y0) %
857 imager_state.dev_ht->lcm_height;
858 gx_imager_setscreenphase(&imager_state,
859 -(state.tile_phase.x + x0),
860 -(state.tile_phase.y + y0),
861 gs_color_select_all);
862 continue;
863 case cmd_op_misc2 >> 4:
864 switch (op) {
865 case cmd_opv_set_fill_adjust:
866 cmd_get_value(imager_state.fill_adjust.x, cbp);
867 cmd_get_value(imager_state.fill_adjust.y, cbp);
868 if_debug2('L', " (%g,%g)\n",
869 fixed2float(imager_state.fill_adjust.x),
870 fixed2float(imager_state.fill_adjust.y));
871 continue;
872 case cmd_opv_set_ctm:
873 {
874 gs_matrix mat;
875
876 cbp = cmd_read_matrix(&mat, cbp);
877 mat.tx -= x0;
878 mat.ty -= y0;
879 gs_imager_setmatrix(&imager_state, &mat);
880 if_debug6('L', " [%g %g %g %g %g %g]\n",
881 mat.xx, mat.xy, mat.yx, mat.yy,
882 mat.tx, mat.ty);
883 }
884 continue;
885 case cmd_opv_set_misc2:
886 cbuf.ptr = cbp;
887 code = read_set_misc2(&cbuf, &imager_state, ¬es);
888 cbp = cbuf.ptr;
889 if (code < 0)
890 goto out;
891 continue;
892 case cmd_opv_set_dash:
893 {
894 int nb = *cbp++;
895 int n = nb & 0x3f;
896 float dot_length, offset;
897
898 cmd_get_value(dot_length, cbp);
899 cmd_get_value(offset, cbp);
900 memcpy(dash_pattern, cbp, n * sizeof(float));
901
902 gx_set_dash(&imager_state.line_params.dash,
903 dash_pattern, n, offset,
904 NULL);
905 gx_set_dash_adapt(&imager_state.line_params.dash,
906 (nb & 0x80) != 0);
907 gx_set_dot_length(&imager_state.line_params,
908 dot_length,
909 (nb & 0x40) != 0);
910 #ifdef DEBUG
911 if (gs_debug_c('L')) {
912 int i;
913
914 dprintf4(" dot=%g(mode %d) adapt=%d offset=%g [",
915 dot_length,
916 (nb & 0x40) != 0,
917 (nb & 0x80) != 0, offset);
918 for (i = 0; i < n; ++i)
919 dprintf1("%g ", dash_pattern[i]);
920 dputs("]\n");
921 }
922 #endif
923 cbp += n * sizeof(float);
924 }
925 break;
926 case cmd_opv_enable_clip:
927 pcpath = (use_clip ? &clip_path : NULL);
928 if_debug0('L', "\n");
929 break;
930 case cmd_opv_disable_clip:
931 pcpath = NULL;
932 if_debug0('L', "\n");
933 break;
934 case cmd_opv_begin_clip:
935 pcpath = NULL;
936 if_debug0('L', "\n");
937 code = gx_cpath_reset(&clip_path);
938 if (code < 0)
939 goto out;
940 gx_cpath_accum_begin(&clip_accum, mem);
941 gx_cpath_accum_set_cbox(&clip_accum,
942 &target_box);
943 tdev = (gx_device *)&clip_accum;
944 clip_save.lop_enabled = state.lop_enabled;
945 clip_save.fill_adjust =
946 imager_state.fill_adjust;
947 state.lop_enabled = false;
948 imager_state.log_op = lop_default;
949 imager_state.fill_adjust.x =
950 imager_state.fill_adjust.y = fixed_half;
951 break;
952 case cmd_opv_end_clip:
953 if_debug0('L', "\n");
954 gx_cpath_accum_end(&clip_accum, &clip_path);
955 tdev = target;
956 /*
957 * If the entire band falls within the clip
958 * path, no clipping is needed.
959 */
960 {
961 gs_fixed_rect cbox;
962
963 gx_cpath_inner_box(&clip_path, &cbox);
964 use_clip =
965 !(cbox.p.x <= target_box.p.x &&
966 cbox.q.x >= target_box.q.x &&
967 cbox.p.y <= target_box.p.y &&
968 cbox.q.y >= target_box.q.y);
969 }
970 pcpath = (use_clip ? &clip_path : NULL);
971 state.lop_enabled = clip_save.lop_enabled;
972 imager_state.log_op =
973 (state.lop_enabled ? state.lop :
974 lop_default);
975 imager_state.fill_adjust =
976 clip_save.fill_adjust;
977 break;
978 case cmd_opv_set_color_space:
979 cbuf.ptr = cbp;
980 code = read_set_color_space(&cbuf, &imager_state,
981 &pcs, &color_space, mem);
982 cbp = cbuf.ptr;
983 if (code < 0) {
984 if (code == gs_error_rangecheck)
985 goto bad_op;
986 goto out;
987 }
988 break;
989 case cmd_opv_begin_image_rect:
990 cbuf.ptr = cbp;
991 code = read_begin_image(&cbuf, &image.c, pcs);
992 cbp = cbuf.ptr;
993 if (code < 0)
994 goto out;
995 {
996 uint diff;
997
998 cmd_getw(image_rect.p.x, cbp);
999 cmd_getw(image_rect.p.y, cbp);
1000 cmd_getw(diff, cbp);
1001 image_rect.q.x = image.d.Width - diff;
1002 cmd_getw(diff, cbp);
1003 image_rect.q.y = image.d.Height - diff;
1004 if_debug4('L', " rect=(%d,%d),(%d,%d)",
1005 image_rect.p.x, image_rect.p.y,
1006 image_rect.q.x, image_rect.q.y);
1007 }
1008 goto ibegin;
1009 case cmd_opv_begin_image:
1010 cbuf.ptr = cbp;
1011 code = read_begin_image(&cbuf, &image.c, pcs);
1012 cbp = cbuf.ptr;
1013 if (code < 0)
1014 goto out;
1015 image_rect.p.x = 0;
1016 image_rect.p.y = 0;
1017 image_rect.q.x = image.d.Width;
1018 image_rect.q.y = image.d.Height;
1019 if_debug2('L', " size=(%d,%d)",
1020 image.d.Width, image.d.Height);
1021 ibegin: if_debug0('L', "\n");
1022 {
1023 gx_drawing_color devc;
1024
1025 color_set_pure(&devc, state.colors[1]);
1026 code = (*dev_proc(tdev, begin_typed_image))
1027 (tdev, &imager_state, NULL,
1028 (const gs_image_common_t *)&image,
1029 &image_rect, &devc, pcpath, mem,
1030 &image_info);
1031 }
1032 if (code < 0)
1033 goto out;
1034 break;
1035 case cmd_opv_image_plane_data:
1036 cmd_getw(data_height, cbp);
1037 if (data_height == 0) {
1038 if_debug0('L', " done image\n");
1039 code = gx_image_end(image_info, true);
1040 if (code < 0)
1041 goto out;
1042 continue;
1043 }
1044 {
1045 uint flags;
1046 int plane;
1047 uint raster;
1048
1049 cmd_getw(flags, cbp);
1050 for (plane = 0;
1051 plane < image_info->num_planes;
1052 ++plane, flags >>= 1
1053 ) {
1054 if (flags & 1) {
1055 if (cbuf.end - cbp <
1056 2 * cmd_max_intsize(sizeof(uint)))
1057 cbp = top_up_cbuf(&cbuf, cbp);
1058 cmd_getw(planes[plane].raster, cbp);
1059 if ((raster = planes[plane].raster) != 0)
1060 cmd_getw(data_x, cbp);
1061 } else {
1062 planes[plane].raster = raster;
1063 }
1064 planes[plane].data_x = data_x;
1065 }
1066 }
1067 goto idata;
1068 case cmd_opv_image_data:
1069 cmd_getw(data_height, cbp);
1070 if (data_height == 0) {
1071 if_debug0('L', " done image\n");
1072 code = gx_image_end(image_info, true);
1073 if (code < 0)
1074 goto out;
1075 continue;
1076 }
1077 {
1078 uint bytes_per_plane;
1079 int plane;
1080
1081 cmd_getw(bytes_per_plane, cbp);
1082 if_debug2('L', " height=%u raster=%u\n",
1083 data_height, bytes_per_plane);
1084 for (plane = 0;
1085 plane < image_info->num_planes;
1086 ++plane
1087 ) {
1088 planes[plane].data_x = data_x;
1089 planes[plane].raster = bytes_per_plane;
1090 }
1091 }
1092 idata: data_size = 0;
1093 {
1094 int plane;
1095
1096 for (plane = 0; plane < image_info->num_planes;
1097 ++plane)
1098 data_size += planes[plane].raster;
1099 }
1100 data_size *= data_height;
1101 data_on_heap = 0;
1102 if (cbuf.end - cbp < data_size)
1103 cbp = top_up_cbuf(&cbuf, cbp);
1104 if (cbuf.end - cbp >= data_size) {
1105 planes[0].data = cbp;
1106 cbp += data_size;
1107 } else {
1108 uint cleft = cbuf.end - cbp;
1109 uint rleft = data_size - cleft;
1110 byte *rdata;
1111
1112 if (data_size > cbuf.end - cbuf.data) {
1113 /* Allocate a separate buffer. */
1114 rdata = data_on_heap =
1115 gs_alloc_bytes(mem, data_size,
1116 "clist image_data");
1117 if (rdata == 0) {
1118 code = gs_note_error(gs_error_VMerror);
1119 goto out;
1120 }
1121 } else
1122 rdata = cbuf.data;
1123 memmove(rdata, cbp, cleft);
1124 sgets(s, rdata + cleft, rleft,
1125 &rleft);
1126 planes[0].data = rdata;
1127 cbp = cbuf.end; /* force refill */
1128 }
1129 {
1130 int plane;
1131 const byte *data = planes[0].data;
1132
1133 for (plane = 0;
1134 plane < image_info->num_planes;
1135 ++plane
1136 ) {
1137 if (planes[plane].raster == 0)
1138 planes[plane].data = 0;
1139 else {
1140 planes[plane].data = data;
1141 data += planes[plane].raster *
1142 data_height;
1143 }
1144 }
1145 }
1146 #ifdef DEBUG
1147 if (gs_debug_c('L')) {
1148 int plane;
1149
1150 for (plane = 0; plane < image_info->num_planes;
1151 ++plane)
1152 if (planes[plane].data != 0)
1153 cmd_print_bits(planes[plane].data,
1154 image_rect.q.x -
1155 image_rect.p.x,
1156 data_height,
1157 planes[plane].raster);
1158 }
1159 #endif
1160 code = gx_image_plane_data(image_info, planes,
1161 data_height);
1162 if (data_on_heap)
1163 gs_free_object(mem, data_on_heap,
1164 "clist image_data");
1165 data_x = 0;
1166 if (code < 0)
1167 goto out;
1168 continue;
1169 case cmd_opv_set_color:
1170 op = *cbp++;
1171 #define dcb dev_color.colors.colored.c_base
1172 #define dcl dev_color.colors.colored.c_level
1173 dcb[0] = ((op & 0xf) << 1) + (*cbp >> 7);
1174 dcb[1] = (*cbp >> 2) & 0x1f;
1175 dcb[2] = ((*cbp & 3) << 3) + (cbp[1] >> 5);
1176 dcb[3] = cbp[1] & 0x1f;
1177 cbp += 2;
1178 goto setcc;
1179 case cmd_opv_set_color_short:
1180 op = *cbp++;
1181 dcb[0] = (op >> 3) & 1;
1182 dcb[1] = (op >> 2) & 1;
1183 dcb[2] = (op >> 1) & 1;
1184 dcb[3] = op & 1;
1185 setcc: {
1186 int i;
1187
1188 for (i = 0; i < cdev->color_info.num_components; ++i)
1189 if (op & (0x80 >> i))
1190 cmd_getw(dcl[i], cbp);
1191 else
1192 dcl[i] = 0;
1193 if_debug9('L', " num_comp=%d base=(%u,%u,%u,%u) level=(%u,%u,%u,%u)\n",
1194 imager_state.dev_ht->num_comp,
1195 dcb[0], dcb[1], dcb[2], dcb[3],
1196 dcl[0], dcl[1], dcl[2], dcl[3]);
1197 color_finish_set_cmyk_halftone(&dev_color,
1198 imager_state.dev_ht);
1199 #undef dcb
1200 #undef dcl
1201 }
1202 goto set_phase;
1203 case cmd_opv_put_params:
1204 cbuf.ptr = cbp;
1205 code = read_put_params(&cbuf, &imager_state, cdev,
1206 mem);
1207 cbp = cbuf.ptr;
1208 if (code > 0)
1209 break; /* empty list */
1210 if (code < 0)
1211 goto out;
1212 if (playback_action == playback_action_setup)
1213 goto out;
1214 break;
1215 default:
1216 goto bad_op;
1217 }
1218 continue;
1219 case cmd_op_segment >> 4:
1220 {
1221 int i, code;
1222 static const byte op_num_operands[] = {
1223 cmd_segment_op_num_operands_values
1224 };
1225
1226 if (!in_path) {
1227 ppos.x = int2fixed(state.rect.x);
1228 ppos.y = int2fixed(state.rect.y);
1229 if_debug2('L', " (%d,%d)", state.rect.x,
1230 state.rect.y);
1231 notes = sn_none;
1232 in_path = true;
1233 }
1234 for (i = 0; i < op_num_operands[op & 0xf]; ++i) {
1235 fixed v;
1236 int b = *cbp;
1237
1238 switch (b >> 5) {
1239 case 0:
1240 case 1:
1241 vs[i++] =
1242 ((fixed) ((b ^ 0x20) - 0x20) << 13) +
1243 ((int)cbp[1] << 5) + (cbp[2] >> 3);
1244 if_debug1('L', " %g", fixed2float(vs[i - 1]));
1245 cbp += 2;
1246 v = (int)((*cbp & 7) ^ 4) - 4;
1247 break;
1248 case 2:
1249 case 3:
1250 v = (b ^ 0x60) - 0x20;
1251 break;
1252 case 4:
1253 case 5:
1254 /*
1255 * Without the following cast, C's
1256 * brain-damaged coercion rules cause the
1257 * result to be considered unsigned, and not
1258 * sign-extended on machines where
1259 * sizeof(long) > sizeof(int).
1260 */
1261 v = (((b ^ 0xa0) - 0x20) << 8) + (int)*++cbp;
1262 break;
1263 case 6:
1264 v = (b ^ 0xd0) - 0x10;
1265 vs[i] =
1266 ((v << 8) + cbp[1]) << (_fixed_shift - 2);
1267 if_debug1('L', " %g", fixed2float(vs[i]));
1268 cbp += 2;
1269 continue;
1270 default /*case 7 */ :
1271 v = (int)(*++cbp ^ 0x80) - 0x80;
1272 for (b = 0; b < sizeof(fixed) - 3; ++b)
1273 v = (v << 8) + *++cbp;
1274 break;
1275 }
1276 cbp += 3;
1277 /* Absent the cast in the next statement, */
1278 /* the Borland C++ 4.5 compiler incorrectly */
1279 /* sign-extends the result of the shift. */
1280 vs[i] = (v << 16) + (uint) (cbp[-2] << 8) + cbp[-1];
1281 if_debug1('L', " %g", fixed2float(vs[i]));
1282 }
1283 if_debug0('L', "\n");
1284 code = clist_decode_segment(&path, op, vs, &ppos,
1285 x0, y0, notes);
1286 if (code < 0)
1287 goto out;
1288 }
1289 continue;
1290 case cmd_op_path >> 4:
1291 {
1292 gx_device_color devc;
1293 gx_device_color *pdevc;
1294 gx_ht_tile ht_tile;
1295
1296 if_debug0('L', "\n");
1297 switch (op) {
1298 case cmd_opv_fill:
1299 fill_params.rule = gx_rule_winding_number;
1300 goto fill_pure;
1301 case cmd_opv_eofill:
1302 fill_params.rule = gx_rule_even_odd;
1303 fill_pure:color_set_pure(&devc, state.colors[1]);
1304 pdevc = &devc;
1305 goto fill;
1306 case cmd_opv_htfill:
1307 fill_params.rule = gx_rule_winding_number;
1308 goto fill_ht;
1309 case cmd_opv_hteofill:
1310 fill_params.rule = gx_rule_even_odd;
1311 fill_ht:ht_tile.tiles = state_tile;
1312 color_set_binary_tile(&devc,
1313 state.tile_colors[0],
1314 state.tile_colors[1],
1315 &ht_tile);
1316 pdevc = &devc;
1317 pdevc->phase = tile_phase;
1318 goto fill;
1319 case cmd_opv_colorfill:
1320 fill_params.rule = gx_rule_winding_number;
1321 goto fill_color;
1322 case cmd_opv_coloreofill:
1323 fill_params.rule = gx_rule_even_odd;
1324 fill_color:pdevc = &dev_color;
1325 pdevc->phase = color_phase;
1326 code =
1327 gx_color_load(pdevc, &imager_state, tdev);
1328 if (code < 0)
1329 break;
1330 fill:fill_params.adjust = imager_state.fill_adjust;
1331 fill_params.flatness = imager_state.flatness;
1332 code = gx_fill_path_only(&path, tdev,
1333 &imager_state,
1334 &fill_params,
1335 pdevc, pcpath);
1336 break;
1337 case cmd_opv_stroke:
1338 color_set_pure(&devc, state.colors[1]);
1339 pdevc = &devc;
1340 goto stroke;
1341 case cmd_opv_htstroke:
1342 ht_tile.tiles = state_tile;
1343 color_set_binary_tile(&devc,
1344 state.tile_colors[0],
1345 state.tile_colors[1],
1346 &ht_tile);
1347 pdevc = &devc;
1348 pdevc->phase = tile_phase;
1349 goto stroke;
1350 case cmd_opv_colorstroke:
1351 pdevc = &dev_color;
1352 pdevc->phase = color_phase;
1353 code =
1354 gx_color_load(pdevc, &imager_state, tdev);
1355 if (code < 0)
1356 break;
1357 stroke:stroke_params.flatness = imager_state.flatness;
1358 code = gx_stroke_path_only(&path,
1359 (gx_path *) 0, tdev,
1360 &imager_state, &stroke_params,
1361 pdevc, pcpath);
1362 break;
1363 case cmd_opv_polyfill:
1364 color_set_pure(&devc, state.colors[1]);
1365 pdevc = &devc;
1366 goto poly;
1367 case cmd_opv_htpolyfill:
1368 ht_tile.tiles = state_tile;
1369 color_set_binary_tile(&devc,
1370 state.tile_colors[0],
1371 state.tile_colors[1],
1372 &ht_tile);
1373 pdevc = &devc;
1374 pdevc->phase = tile_phase;
1375 goto poly;
1376 case cmd_opv_colorpolyfill:
1377 pdevc = &dev_color;
1378 pdevc->phase = color_phase;
1379 code = gx_color_load(pdevc, &imager_state, tdev);
1380 if (code < 0)
1381 break;
1382 poly: code = clist_do_polyfill(tdev, &path, pdevc,
1383 imager_state.log_op);
1384 break;
1385 default:
1386 goto bad_op;
1387 }
1388 }
1389 if (in_path) { /* path might be empty! */
1390 state.rect.x = fixed2int_var(ppos.x);
1391 state.rect.y = fixed2int_var(ppos.y);
1392 in_path = false;
1393 }
1394 gx_path_free(&path, "clist_render_band");
1395 gx_path_init_local(&path, mem);
1396 if (code < 0)
1397 goto out;
1398 continue;
1399 default:
1400 bad_op:lprintf5("Bad op %02x band y0 = %d file pos %ld buf pos %d/%d\n",
1401 op, y0, stell(s), (int)(cbp - cbuf.data), (int)(cbuf.end - cbuf.data));
1402 {
1403 const byte *pp;
1404
1405 for (pp = cbuf.data; pp < cbuf.end; pp += 10) {
1406 dlprintf1("%4d:", (int)(pp - cbuf.data));
1407 dprintf10(" %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
1408 pp[0], pp[1], pp[2], pp[3], pp[4],
1409 pp[5], pp[6], pp[7], pp[8], pp[9]);
1410 }
1411 }
1412 code = gs_note_error(gs_error_Fatal);
1413 goto out;
1414 }
1415 if_debug4('L', " x=%d y=%d w=%d h=%d\n",
1416 state.rect.x, state.rect.y, state.rect.width,
1417 state.rect.height);
1418 switch (op >> 4) {
1419 case cmd_op_fill_rect >> 4:
1420 case cmd_op_fill_rect_short >> 4:
1421 case cmd_op_fill_rect_tiny >> 4:
1422 if (!state.lop_enabled) {
1423 code = (*dev_proc(tdev, fill_rectangle))
1424 (tdev, state.rect.x - x0, state.rect.y - y0,
1425 state.rect.width, state.rect.height,
1426 state.colors[1]);
1427 break;
1428 }
1429 source = NULL;
1430 data_x = 0;
1431 raster = 0;
1432 colors[0] = colors[1] = state.colors[1];
1433 log_op = state.lop;
1434 pcolor = colors;
1435 do_rop:code = (*dev_proc(tdev, strip_copy_rop))
1436 (tdev, source, data_x, raster, gx_no_bitmap_id,
1437 pcolor, &state_tile,
1438 (state.tile_colors[0] == gx_no_color_index &&
1439 state.tile_colors[1] == gx_no_color_index ?
1440 NULL : state.tile_colors),
1441 state.rect.x - x0, state.rect.y - y0,
1442 state.rect.width - data_x, state.rect.height,
1443 tile_phase.x, tile_phase.y, log_op);
1444 data_x = 0;
1445 break;
1446 case cmd_op_tile_rect >> 4:
1447 case cmd_op_tile_rect_short >> 4:
1448 case cmd_op_tile_rect_tiny >> 4:
1449 /* Currently we don't use lop with tile_rectangle. */
1450 code = (*dev_proc(tdev, strip_tile_rectangle))
1451 (tdev, &state_tile,
1452 state.rect.x - x0, state.rect.y - y0,
1453 state.rect.width, state.rect.height,
1454 state.tile_colors[0], state.tile_colors[1],
1455 tile_phase.x, tile_phase.y);
1456 break;
1457 case cmd_op_copy_mono >> 4:
1458 if (state.lop_enabled) {
1459 pcolor = state.colors;
1460 log_op = state.lop;
1461 goto do_rop;
1462 }
1463 if ((op & cmd_copy_use_tile) || pcpath != NULL) { /*
1464 * This call of copy_mono originated as a call
1465 * of fill_mask.
1466 */
1467 gx_drawing_color dcolor;
1468 gx_ht_tile ht_tile;
1469
1470 if (op & cmd_copy_ht_color) { /* Screwy C assignment rules don't allow: */
1471 /* dcolor.colors = state.tile_colors; */
1472 ht_tile.tiles = state_tile;
1473 color_set_binary_tile(&dcolor,
1474 state.tile_colors[0],
1475 state.tile_colors[1], &ht_tile);
1476 dcolor.phase = tile_phase;
1477 } else {
1478 color_set_pure(&dcolor, state.colors[1]);
1479 }
1480 code = (*dev_proc(tdev, fill_mask))
1481 (tdev, source, data_x, raster, gx_no_bitmap_id,
1482 state.rect.x - x0, state.rect.y - y0,
1483 state.rect.width - data_x, state.rect.height,
1484 &dcolor, 1, imager_state.log_op, pcpath);
1485 } else
1486 code = (*dev_proc(tdev, copy_mono))
1487 (tdev, source, data_x, raster, gx_no_bitmap_id,
1488 state.rect.x - x0, state.rect.y - y0,
1489 state.rect.width - data_x, state.rect.height,
1490 state.colors[0], state.colors[1]);
1491 data_x = 0;
1492 break;
1493 case cmd_op_copy_color_alpha >> 4:
1494 if (state.color_is_alpha) {
1495 /****** CAN'T DO ROP WITH ALPHA ******/
1496 code = (*dev_proc(tdev, copy_alpha))
1497 (tdev, source, data_x, raster, gx_no_bitmap_id,
1498 state.rect.x - x0, state.rect.y - y0,
1499 state.rect.width - data_x, state.rect.height,
1500 state.colors[1], depth);
1501 } else {
1502 if (state.lop_enabled) {
1503 pcolor = NULL;
1504 log_op = state.lop;
1505 goto do_rop;
1506 }
1507 code = (*dev_proc(tdev, copy_color))
1508 (tdev, source, data_x, raster, gx_no_bitmap_id,
1509 state.rect.x - x0, state.rect.y - y0,
1510 state.rect.width - data_x, state.rect.height);
1511 }
1512 data_x = 0;
1513 break;
1514 default: /* can't happen */
1515 goto bad_op;
1516 }
1517 }
1518 /* Clean up before we exit. */
1519 out:gx_cpath_free(&clip_path, "clist_render_band exit");
1520 gx_path_free(&path, "clist_render_band exit");
1521 gs_imager_state_release(&imager_state);
1522 if (imager_state.ht_cache)
1523 gx_ht_free_cache(mem, imager_state.ht_cache);
1524 gs_free_object(mem, data_bits, "clist_playback_band(data_bits)");
1525 if (code < 0)
1526 return_error(code);
1527 /* Check whether we have more pages to process. */
1528 if (playback_action != playback_action_setup &&
1529 (cbp < cbuf.end || !seofp(s))
1530 )
1531 goto in;
1532 return code;
1533 }
1534
1535 /* ---------------- Individual commands ---------------- */
1536
1537 /*
1538 * These single-use procedures implement a few large individual commands,
1539 * primarily for readability but also to avoid overflowing compilers'
1540 * optimization limits. They all take the command buffer as their first
1541 * parameter (pcb), assume that the current buffer pointer is in pcb->ptr,
1542 * and update it there.
1543 */
1544
1545 private int
read_set_tile_size(command_buf_t * pcb,tile_slot * bits)1546 read_set_tile_size(command_buf_t *pcb, tile_slot *bits)
1547 {
1548 const byte *cbp = pcb->ptr;
1549 uint rep_width, rep_height;
1550 byte bd = *cbp++;
1551
1552 bits->cb_depth = (bd & 31) + 1;
1553 cmd_getw(rep_width, cbp);
1554 cmd_getw(rep_height, cbp);
1555 if (bd & 0x20) {
1556 cmd_getw(bits->x_reps, cbp);
1557 bits->width = rep_width * bits->x_reps;
1558 } else {
1559 bits->x_reps = 1;
1560 bits->width = rep_width;
1561 }
1562 if (bd & 0x40) {
1563 cmd_getw(bits->y_reps, cbp);
1564 bits->height = rep_height * bits->y_reps;
1565 } else {
1566 bits->y_reps = 1;
1567 bits->height = rep_height;
1568 }
1569 if (bd & 0x80)
1570 cmd_getw(bits->rep_shift, cbp);
1571 else
1572 bits->rep_shift = 0;
1573 if_debug6('L', " depth=%d size=(%d,%d), rep_size=(%d,%d), rep_shift=%d\n",
1574 bits->cb_depth, bits->width,
1575 bits->height, rep_width,
1576 rep_height, bits->rep_shift);
1577 bits->shift =
1578 (bits->rep_shift == 0 ? 0 :
1579 (bits->rep_shift * (bits->height / rep_height)) % rep_width);
1580 bits->cb_raster = bitmap_raster(bits->width * bits->cb_depth);
1581 pcb->ptr = cbp;
1582 return 0;
1583 }
1584
1585 private int
read_set_bits(command_buf_t * pcb,tile_slot * bits,int compress,gx_clist_state * pcls,gx_strip_bitmap * tile,tile_slot ** pslot,gx_device_clist_reader * cdev,gs_memory_t * mem)1586 read_set_bits(command_buf_t *pcb, tile_slot *bits, int compress,
1587 gx_clist_state *pcls, gx_strip_bitmap *tile, tile_slot **pslot,
1588 gx_device_clist_reader *cdev, gs_memory_t *mem)
1589 {
1590 const byte *cbp = pcb->ptr;
1591 uint rep_width = bits->width / bits->x_reps;
1592 uint rep_height = bits->height / bits->y_reps;
1593 uint index;
1594 ulong offset;
1595 uint width_bits = rep_width * bits->cb_depth;
1596 uint width_bytes;
1597 uint raster;
1598 uint bytes =
1599 clist_bitmap_bytes(width_bits, rep_height,
1600 compress |
1601 (rep_width < bits->width ?
1602 decompress_spread : 0) |
1603 decompress_elsewhere,
1604 &width_bytes,
1605 (uint *)&raster);
1606 byte *data;
1607 tile_slot *slot;
1608
1609 cmd_getw(index, cbp);
1610 cmd_getw(offset, cbp);
1611 if_debug2('L', " index=%d offset=%lu\n", pcls->tile_index, offset);
1612 pcls->tile_index = index;
1613 cdev->tile_table[pcls->tile_index].offset = offset;
1614 slot = (tile_slot *)(cdev->chunk.data + offset);
1615 *pslot = slot;
1616 *slot = *bits;
1617 tile->data = data = (byte *)(slot + 1);
1618 #ifdef DEBUG
1619 slot->index = pcls->tile_index;
1620 #endif
1621 if (compress) {
1622 /*
1623 * Decompress the image data. We'd like to share this code with the
1624 * similar code in copy_*, but right now we don't see how.
1625 */
1626 stream_cursor_read r;
1627 stream_cursor_write w;
1628 /*
1629 * We don't know the data length a priori, so to be conservative, we
1630 * read the uncompressed size.
1631 */
1632 uint cleft = pcb->end - cbp;
1633
1634 if (cleft < bytes) {
1635 uint nread = cbuf_size - cleft;
1636
1637 memmove(pcb->data, cbp, cleft);
1638 pcb->end_status = sgets(pcb->s, pcb->data + cleft, nread, &nread);
1639 set_cb_end(pcb, pcb->data + cleft + nread);
1640 cbp = pcb->data;
1641 }
1642 r.ptr = cbp - 1;
1643 r.limit = pcb->end - 1;
1644 w.ptr = data - 1;
1645 w.limit = w.ptr + bytes;
1646 switch (compress) {
1647 case cmd_compress_rle:
1648 {
1649 stream_RLD_state sstate;
1650
1651 clist_rld_init(&sstate);
1652 (*s_RLD_template.process)
1653 ((stream_state *)&sstate, &r, &w, true);
1654 }
1655 break;
1656 case cmd_compress_cfe:
1657 {
1658 stream_CFD_state sstate;
1659
1660 clist_cfd_init(&sstate,
1661 width_bytes << 3 /*width_bits */ ,
1662 rep_height, mem);
1663 (*s_CFD_template.process)
1664 ((stream_state *)&sstate, &r, &w, true);
1665 (*s_CFD_template.release)
1666 ((stream_state *)&sstate);
1667 }
1668 break;
1669 default:
1670 return_error(gs_error_unregistered);
1671 }
1672 cbp = r.ptr + 1;
1673 } else if (rep_height > 1 && width_bytes != bits->cb_raster) {
1674 cbp = cmd_read_short_bits(pcb, data,
1675 width_bytes, rep_height,
1676 bits->cb_raster, cbp);
1677 } else {
1678 cbp = cmd_read_data(pcb, data, bytes, cbp);
1679 }
1680 if (bits->width > rep_width)
1681 bits_replicate_horizontally(data,
1682 rep_width * bits->cb_depth, rep_height,
1683 bits->cb_raster,
1684 bits->width * bits->cb_depth,
1685 bits->cb_raster);
1686 if (bits->height > rep_height)
1687 bits_replicate_vertically(data,
1688 rep_height, bits->cb_raster,
1689 bits->height);
1690 #ifdef DEBUG
1691 if (gs_debug_c('L'))
1692 cmd_print_bits(data, bits->width, bits->height, bits->cb_raster);
1693 #endif
1694 pcb->ptr = cbp;
1695 return 0;
1696 }
1697
1698 private int
read_set_ht_order(command_buf_t * pcb,gx_device_halftone ** ppdht,gx_ht_order ** pporder,gs_memory_t * mem)1699 read_set_ht_order(command_buf_t *pcb, gx_device_halftone **ppdht,
1700 gx_ht_order **pporder, gs_memory_t *mem)
1701 {
1702 const byte *cbp = pcb->ptr;
1703 gx_ht_order *porder;
1704 uint old_num_levels;
1705 uint *levels;
1706 uint old_num_bits;
1707 void *bit_data;
1708 int index;
1709 gx_ht_order new_order;
1710 int code = cmd_create_dev_ht(ppdht, mem);
1711 gx_device_halftone *pdht = *ppdht;
1712
1713 if (code < 0)
1714 return code;
1715 cmd_getw(index, cbp);
1716 if (index == 0)
1717 porder = &pdht->order;
1718 else {
1719 gx_ht_order_component *pcomp = &pdht->components[index - 1];
1720
1721 cmd_getw(pcomp->cname, cbp);
1722 if_debug1('L', " cname=%lu", (ulong) pcomp->cname);
1723 porder = &pcomp->corder;
1724 }
1725 *pporder = porder;
1726 new_order = *porder;
1727 cmd_getw(new_order.width, cbp);
1728 cmd_getw(new_order.height, cbp);
1729 cmd_getw(new_order.raster, cbp);
1730 cmd_getw(new_order.shift, cbp);
1731 cmd_getw(new_order.num_levels, cbp);
1732 cmd_getw(new_order.num_bits, cbp);
1733 new_order.procs = &ht_order_procs_table[*cbp++];
1734 pcb->ptr = cbp;
1735 if_debug8('L', " index=%d size=(%d,%d) raster=%d shift=%d num_levels=%d num_bits=%d procs=%d\n",
1736 index, new_order.width, new_order.height,
1737 new_order.raster, new_order.shift,
1738 new_order.num_levels, new_order.num_bits, cbp[-1]);
1739 if (new_order.data_memory == 0) {
1740 /* levels and bit_data point into ROM. */
1741 old_num_levels = 0;
1742 levels = 0;
1743 old_num_bits = 0;
1744 bit_data = 0;
1745 } else {
1746 old_num_levels = porder->num_levels;
1747 levels = porder->levels;
1748 old_num_bits = porder->num_bits;
1749 bit_data = porder->bit_data;
1750 }
1751 new_order.data_memory = mem;
1752 /*
1753 * Note that for resizing a byte array, the element size is 1 byte,
1754 * not the element size given to alloc_byte_array!
1755 */
1756 if (new_order.num_levels > old_num_levels) {
1757 if (levels == 0)
1758 levels = (uint *) gs_alloc_byte_array(mem, new_order.num_levels,
1759 sizeof(*levels),
1760 "ht order(levels)");
1761 else
1762 levels = gs_resize_object(mem, levels,
1763 new_order.num_levels * sizeof(*levels),
1764 "ht order(levels)");
1765 if (levels == 0)
1766 return_error(gs_error_VMerror);
1767 /* Update porder in case we bail out. */
1768 porder->levels = levels;
1769 porder->num_levels = new_order.num_levels;
1770 }
1771 if (new_order.num_bits != old_num_bits ||
1772 new_order.procs != porder->procs
1773 ) {
1774 if (bit_data == 0)
1775 bit_data = gs_alloc_byte_array(mem, new_order.num_bits,
1776 new_order.procs->bit_data_elt_size,
1777 "ht order(bit_data)");
1778 else
1779 bit_data = gs_resize_object(mem, bit_data,
1780 new_order.num_bits *
1781 new_order.procs->bit_data_elt_size,
1782 "ht order(bit_data)");
1783 if (bit_data == 0)
1784 return_error(gs_error_VMerror);
1785 }
1786 *porder = new_order;
1787 porder->levels = levels;
1788 porder->bit_data = bit_data;
1789 porder->full_height = ht_order_full_height(porder);
1790 return 0;
1791 }
1792
1793 private int
read_set_ht_data(command_buf_t * pcb,uint * pdata_index,gx_ht_order * porder,gs_halftone_type halftone_type,gs_imager_state * pis,gx_device_clist_reader * cdev,gs_memory_t * mem)1794 read_set_ht_data(command_buf_t *pcb, uint *pdata_index, gx_ht_order *porder,
1795 gs_halftone_type halftone_type, gs_imager_state *pis,
1796 gx_device_clist_reader *cdev, gs_memory_t *mem)
1797 {
1798 gx_device_halftone *pdht = pis->dev_ht;
1799 uint elt_size = porder->procs->bit_data_elt_size;
1800 const byte *cbp = pcb->ptr;
1801 int n = *cbp++;
1802
1803 if (*pdata_index < porder->num_levels) { /* Setting levels */
1804 byte *lptr = (byte *)(porder->levels + *pdata_index);
1805
1806 cbp = cmd_read_data(pcb, lptr, n * sizeof(*porder->levels), cbp);
1807 #ifdef DEBUG
1808 if (gs_debug_c('L')) {
1809 int i;
1810
1811 dprintf1(" levels[%u]", *pdata_index);
1812 for (i = 0; i < n; ++i)
1813 dprintf1(" %u",
1814 porder->levels[*pdata_index + i]);
1815 dputc('\n');
1816 }
1817 #endif
1818 } else { /* Setting bits */
1819 byte *bptr =
1820 (byte *)porder->bit_data +
1821 (*pdata_index - porder->num_levels) * elt_size;
1822
1823 cbp = cmd_read_data(pcb, bptr, n * elt_size, cbp);
1824 #ifdef DEBUG
1825 if (gs_debug_c('L')) {
1826 int i;
1827
1828 dprintf1(" bits[%u]", *pdata_index - porder->num_levels);
1829 for (i = 0; i < n; ++i) {
1830 const byte *pb = (byte *)porder->bit_data +
1831 (*pdata_index - porder->num_levels + i) * elt_size;
1832
1833 if (porder->procs == &ht_order_procs_default) {
1834 const gx_ht_bit *pbit = (const gx_ht_bit *)pb;
1835
1836 dprintf2(" (%u,0x%lx)", pbit->offset, (ulong)pbit->mask);
1837 } else {
1838 debug_dump_bytes(pb, pb + elt_size, NULL);
1839 }
1840 }
1841 dputc('\n');
1842 }
1843 #endif
1844 }
1845 *pdata_index += n;
1846 /*
1847 * If this is the end of a component, check whether a copy of its data
1848 * exists in ROM.
1849 */
1850 if (*pdata_index == porder->num_levels + porder->num_bits) {
1851 const gx_dht_proc *phtrp = gx_device_halftone_list;
1852
1853 for (; *phtrp; ++phtrp) {
1854 const gx_device_halftone_resource_t *const *pphtr = (*phtrp)();
1855 const gx_device_halftone_resource_t *phtr;
1856
1857 while ((phtr = *pphtr++) != 0) {
1858 if (phtr->Width == porder->width &&
1859 phtr->Height == porder->height &&
1860 phtr->num_levels == porder->num_levels &&
1861 !memcmp(phtr->levels, porder->levels,
1862 phtr->num_levels * sizeof(*phtr->levels)) &&
1863 !memcmp(phtr->bit_data, porder->bit_data,
1864 phtr->Width * phtr->Height * elt_size)
1865 ) {
1866 /*
1867 * This is a predefined halftone. Free the levels and
1868 * bit_data arrays, replacing them with the built-in ones.
1869 */
1870 if (porder->data_memory) {
1871 gs_free_object(porder->data_memory, porder->bit_data,
1872 "construct_ht_order_short(bit_data)");
1873 gs_free_object(porder->data_memory, porder->levels,
1874 "construct_ht_order_short(levels)");
1875 }
1876 porder->data_memory = 0;
1877 porder->levels = (uint *)phtr->levels; /* actually const */
1878 porder->bit_data = (void *)phtr->bit_data; /* actually const */
1879 goto out;
1880 }
1881 }
1882 }
1883 out:
1884 /*
1885 * If this is the end of the data, install the (device) halftone.
1886 */
1887 if (porder ==
1888 (pdht->components != 0 ?
1889 &pdht->components[0].corder :
1890 &pdht->order)) {
1891 /* Make sure we have a halftone cache. */
1892 uint i;
1893
1894 if (pis->ht_cache == 0) {
1895 gx_ht_cache *pcache =
1896 gx_ht_alloc_cache(mem,
1897 porder->num_levels + 2,
1898 gx_ht_cache_default_bits());
1899
1900 if (pcache == 0)
1901 return_error(gs_error_VMerror);
1902 pis->ht_cache = pcache;
1903 }
1904 for (i = 1; i < pdht->num_comp; ++i) {
1905 gx_ht_order *pco = &pdht->components[i].corder;
1906
1907 if (!pco->cache) {
1908 gx_ht_cache *pcache =
1909 gx_ht_alloc_cache(mem, 4,
1910 pco->raster *
1911 (pco->num_bits / pco->width) * 4);
1912
1913 if (pcache == 0)
1914 return_error(gs_error_VMerror);
1915 pco->cache = pcache;
1916 gx_ht_init_cache(pco->cache, pco);
1917 }
1918 }
1919 if (pdht->num_comp) {
1920 pdht->components[0].corder.cache = pis->ht_cache;
1921 pdht->order = pdht->components[0].corder;
1922 }
1923 /*
1924 * Normally, the following procedure releases the existing
1925 * device halftone and assumes ownership of everything in the
1926 * new one except the top-level structure. However, there is a
1927 * special check for the case where pdht == pis->dev_ht, solely
1928 * so that we can avoid the sleazy things we would otherwise
1929 * have to do here.
1930 */
1931 gx_imager_dev_ht_install(pis, pdht, halftone_type,
1932 (const gx_device *)cdev);
1933 }
1934 }
1935 pcb->ptr = cbp;
1936 return 0;
1937 }
1938
1939 private int
read_set_misc2(command_buf_t * pcb,gs_imager_state * pis,segment_notes * pnotes)1940 read_set_misc2(command_buf_t *pcb, gs_imager_state *pis, segment_notes *pnotes)
1941 {
1942 const byte *cbp = pcb->ptr;
1943 uint mask, cb;
1944
1945 cmd_getw(mask, cbp);
1946 if (mask & cap_join_known) {
1947 cb = *cbp++;
1948 pis->line_params.cap = (gs_line_cap)((cb >> 3) & 7);
1949 pis->line_params.join = (gs_line_join)(cb & 7);
1950 if_debug2('L', " cap=%d join=%d\n",
1951 pis->line_params.cap, pis->line_params.join);
1952 }
1953 if (mask & cj_ac_sa_known) {
1954 cb = *cbp++;
1955 pis->line_params.curve_join = ((cb >> 2) & 7) - 1;
1956 pis->accurate_curves = (cb & 2) != 0;
1957 pis->stroke_adjust = cb & 1;
1958 if_debug3('L', " CJ=%d AC=%d SA=%d\n",
1959 pis->line_params.curve_join, pis->accurate_curves,
1960 pis->stroke_adjust);
1961 }
1962 if (mask & flatness_known) {
1963 cmd_get_value(pis->flatness, cbp);
1964 if_debug1('L', " flatness=%g\n", pis->flatness);
1965 }
1966 if (mask & line_width_known) {
1967 float width;
1968
1969 cmd_get_value(width, cbp);
1970 if_debug1('L', " line_width=%g\n", width);
1971 gx_set_line_width(&pis->line_params, width);
1972 }
1973 if (mask & miter_limit_known) {
1974 float limit;
1975
1976 cmd_get_value(limit, cbp);
1977 if_debug1('L', " miter_limit=%g\n", limit);
1978 gx_set_miter_limit(&pis->line_params, limit);
1979 }
1980 if (mask & op_bm_tk_known) {
1981 cb = *cbp++;
1982 pis->blend_mode = cb >> 3;
1983 pis->text_knockout = (cb & 4) != 0;
1984 pis->overprint_mode = (cb >> 1) & 1;
1985 pis->overprint = cb & 1;
1986 if_debug4('L', " BM=%d TK=%d OPM=%d OP=%d\n",
1987 pis->blend_mode, pis->text_knockout, pis->overprint_mode,
1988 pis->overprint);
1989 }
1990 if (mask & segment_notes_known) {
1991 cb = *cbp++;
1992 *pnotes = (segment_notes)(cb & 0x3f);
1993 if_debug1('L', " notes=%d\n", *pnotes);
1994 }
1995 if (mask & opacity_alpha_known) {
1996 cmd_get_value(pis->opacity.alpha, cbp);
1997 if_debug1('L', " opacity.alpha=%g\n", pis->opacity.alpha);
1998 }
1999 if (mask & shape_alpha_known) {
2000 cmd_get_value(pis->shape.alpha, cbp);
2001 if_debug1('L', " shape.alpha=%g\n", pis->shape.alpha);
2002 }
2003 if (mask & alpha_known) {
2004 cmd_get_value(pis->alpha, cbp);
2005 if_debug1('L', " alpha=%u\n", pis->alpha);
2006 }
2007 pcb->ptr = cbp;
2008 return 0;
2009 }
2010
2011 private int
read_set_color_space(command_buf_t * pcb,gs_imager_state * pis,const gs_color_space ** ppcs,gs_color_space * pcolor_space,gs_memory_t * mem)2012 read_set_color_space(command_buf_t *pcb, gs_imager_state *pis,
2013 const gs_color_space **ppcs, gs_color_space *pcolor_space,
2014 gs_memory_t *mem)
2015 {
2016 const byte *cbp = pcb->ptr;
2017 byte b = *cbp++;
2018 int index = b >> 4;
2019 const gs_color_space *pcs;
2020 int code = 0;
2021
2022 if_debug3('L', " %d%s%s\n", index,
2023 (b & 8 ? " (indexed)" : ""),
2024 (b & 4 ? "(proc)" : ""));
2025 switch (index) {
2026 case gs_color_space_index_DeviceGray:
2027 pcs = gs_cspace_DeviceGray(pis);
2028 break;
2029 case gs_color_space_index_DeviceRGB:
2030 pcs = gs_cspace_DeviceRGB(pis);
2031 break;
2032 case gs_color_space_index_DeviceCMYK:
2033 pcs = gs_cspace_DeviceCMYK(pis);
2034 break;
2035 default:
2036 code = gs_note_error(gs_error_rangecheck); /* others are NYI */
2037 goto out;
2038 }
2039 /* Free any old indexed color space data. */
2040 if (pcolor_space->params.indexed.use_proc) {
2041 if (pcolor_space->params.indexed.lookup.map)
2042 gs_free_object(mem,
2043 pcolor_space->params.indexed.lookup.map->values,
2044 "old indexed map values");
2045 gs_free_object(mem, pcolor_space->params.indexed.lookup.map,
2046 "old indexed map");
2047 pcolor_space->params.indexed.lookup.map = 0;
2048 } else {
2049 if (pcolor_space->params.indexed.lookup.table.size)
2050 gs_free_const_string(mem,
2051 pcolor_space->params.indexed.lookup.table.data,
2052 pcolor_space->params.indexed.lookup.table.size,
2053 "old indexed table");
2054 pcolor_space->params.indexed.lookup.table.size = 0;
2055 }
2056 if (b & 8) {
2057 bool use_proc = (b & 4) != 0;
2058 int hival;
2059 int num_values;
2060 byte *data;
2061 uint data_size;
2062
2063 cmd_getw(hival, cbp);
2064 num_values = (hival + 1) * gs_color_space_num_components(pcs);
2065 if (use_proc) {
2066 gs_indexed_map *map;
2067
2068 code = alloc_indexed_map(&map, num_values, mem, "indexed map");
2069 if (code < 0)
2070 goto out;
2071 map->proc.lookup_index = lookup_indexed_map;
2072 pcolor_space->params.indexed.lookup.map = map;
2073 data = (byte *)map->values;
2074 data_size = num_values * sizeof(map->values[0]);
2075 } else {
2076 byte *table = gs_alloc_string(mem, num_values, "indexed table");
2077
2078 if (table == 0) {
2079 code = gs_note_error(gs_error_VMerror);
2080 goto out;
2081 }
2082 pcolor_space->params.indexed.lookup.table.data = table;
2083 pcolor_space->params.indexed.lookup.table.size = num_values;
2084 data = table;
2085 data_size = num_values;
2086 }
2087 cbp = cmd_read_data(pcb, data, data_size, cbp);
2088 pcolor_space->type =
2089 &gs_color_space_type_Indexed;
2090 memmove(&pcolor_space->params.indexed.base_space, pcs,
2091 sizeof(pcolor_space->params.indexed.base_space));
2092 pcolor_space->params.indexed.hival = hival;
2093 pcolor_space->params.indexed.use_proc = use_proc;
2094 pcs = pcolor_space;
2095 }
2096 *ppcs = pcs;
2097 out:
2098 pcb->ptr = cbp;
2099 return code;
2100 }
2101
2102 private int
read_begin_image(command_buf_t * pcb,gs_image_common_t * pic,const gs_color_space * pcs)2103 read_begin_image(command_buf_t *pcb, gs_image_common_t *pic,
2104 const gs_color_space *pcs)
2105 {
2106 uint index = *(pcb->ptr)++;
2107 const gx_image_type_t *image_type = gx_image_type_table[index];
2108 stream s;
2109 int code;
2110
2111 /* This is sloppy, but we don't have enough information to do better. */
2112 pcb->ptr = top_up_cbuf(pcb, pcb->ptr);
2113 sread_string(&s, pcb->ptr, pcb->end - pcb->ptr);
2114 code = image_type->sget(pic, &s, pcs);
2115 pcb->ptr = sbufptr(&s);
2116 return code;
2117 }
2118
2119 private int
read_put_params(command_buf_t * pcb,gs_imager_state * pis,gx_device_clist_reader * cdev,gs_memory_t * mem)2120 read_put_params(command_buf_t *pcb, gs_imager_state *pis,
2121 gx_device_clist_reader *cdev, gs_memory_t *mem)
2122 {
2123 const byte *cbp = pcb->ptr;
2124 gs_c_param_list param_list;
2125 uint cleft;
2126 uint rleft;
2127 bool alloc_data_on_heap = false;
2128 byte *param_buf;
2129 uint param_length;
2130 int code = 0;
2131
2132 cmd_get_value(param_length, cbp);
2133 if_debug1('L', " length=%d\n", param_length);
2134 if (param_length == 0) {
2135 code = 1; /* empty list */
2136 goto out;
2137 }
2138
2139 /* Make sure entire serialized param list is in cbuf */
2140 /* + force void* alignment */
2141 cbp = top_up_cbuf(pcb, cbp);
2142 if (pcb->end - cbp >= param_length) {
2143 param_buf = (byte *)cbp;
2144 cbp += param_length;
2145 } else {
2146 /* NOTE: param_buf must be maximally aligned */
2147 param_buf = gs_alloc_bytes(mem, param_length,
2148 "clist put_params");
2149 if (param_buf == 0) {
2150 code = gs_note_error(gs_error_VMerror);
2151 goto out;
2152 }
2153 alloc_data_on_heap = true;
2154 cleft = pcb->end - cbp;
2155 rleft = param_length - cleft;
2156 memmove(param_buf, cbp, cleft);
2157 pcb->end_status = sgets(pcb->s, param_buf + cleft, rleft, &rleft);
2158 cbp = pcb->end; /* force refill */
2159 }
2160
2161 /*
2162 * Create a gs_c_param_list & expand into it.
2163 * NB that gs_c_param_list doesn't copy objects into
2164 * it, but rather keeps *pointers* to what's passed.
2165 * That's OK because the serialized format keeps enough
2166 * space to hold expanded versions of the structures,
2167 * but this means we cannot deallocate source buffer
2168 * until the gs_c_param_list is deleted.
2169 */
2170 gs_c_param_list_write(¶m_list, mem);
2171 code = gs_param_list_unserialize
2172 ( (gs_param_list *)¶m_list, param_buf );
2173 if (code >= 0 && code != param_length)
2174 code = gs_error_unknownerror; /* must match */
2175 if (code >= 0) {
2176 gs_c_param_list_read(¶m_list);
2177 code = gs_imager_putdeviceparams(pis, (gx_device *)cdev,
2178 (gs_param_list *)¶m_list);
2179 }
2180 gs_c_param_list_release(¶m_list);
2181 if (alloc_data_on_heap)
2182 gs_free_object(mem, param_buf, "clist put_params");
2183
2184 out:
2185 pcb->ptr = cbp;
2186 return code;
2187 }
2188
2189 /* ---------------- Utilities ---------------- */
2190
2191 /* Read and unpack a short bitmap */
2192 private const byte *
cmd_read_short_bits(command_buf_t * pcb,byte * data,int width_bytes,int height,uint raster,const byte * cbp)2193 cmd_read_short_bits(command_buf_t *pcb, byte *data, int width_bytes,
2194 int height, uint raster, const byte *cbp)
2195 {
2196 uint bytes = width_bytes * height;
2197 const byte *pdata = data /*src*/ + bytes;
2198 byte *udata = data /*dest*/ + height * raster;
2199
2200 cbp = cmd_read_data(pcb, data, width_bytes * height, cbp);
2201 while (--height >= 0) {
2202 udata -= raster, pdata -= width_bytes;
2203 switch (width_bytes) {
2204 default:
2205 memmove(udata, pdata, width_bytes);
2206 break;
2207 case 6:
2208 udata[5] = pdata[5];
2209 case 5:
2210 udata[4] = pdata[4];
2211 case 4:
2212 udata[3] = pdata[3];
2213 case 3:
2214 udata[2] = pdata[2];
2215 case 2:
2216 udata[1] = pdata[1];
2217 case 1:
2218 udata[0] = pdata[0];
2219 case 0:; /* shouldn't happen */
2220 }
2221 }
2222 return cbp;
2223 }
2224
2225 /* Read a rectangle. */
2226 private const byte *
cmd_read_rect(int op,gx_cmd_rect * prect,const byte * cbp)2227 cmd_read_rect(int op, gx_cmd_rect * prect, const byte * cbp)
2228 {
2229 cmd_getw(prect->x, cbp);
2230 if (op & 0xf)
2231 prect->y += ((op >> 2) & 3) - 2;
2232 else {
2233 cmd_getw(prect->y, cbp);
2234 }
2235 cmd_getw(prect->width, cbp);
2236 if (op & 0xf)
2237 prect->height += (op & 3) - 2;
2238 else {
2239 cmd_getw(prect->height, cbp);
2240 }
2241 return cbp;
2242 }
2243
2244 /* Read a transformation matrix. */
2245 private const byte *
cmd_read_matrix(gs_matrix * pmat,const byte * cbp)2246 cmd_read_matrix(gs_matrix * pmat, const byte * cbp)
2247 {
2248 stream s;
2249
2250 sread_string(&s, cbp, 1 + sizeof(*pmat));
2251 sget_matrix(&s, pmat);
2252 return cbp + stell(&s);
2253 }
2254
2255 /* Select a map for loading with data. */
2256 private int
cmd_select_map(cmd_map_index map_index,cmd_map_contents cont,gs_imager_state * pis,gx_ht_order * porder,frac ** pmdata,uint * pcount,gs_memory_t * mem)2257 cmd_select_map(cmd_map_index map_index, cmd_map_contents cont,
2258 gs_imager_state * pis, gx_ht_order * porder, frac ** pmdata,
2259 uint * pcount, gs_memory_t * mem)
2260 {
2261 gx_transfer_map *map;
2262 gx_transfer_map **pmap;
2263 const char *cname;
2264
2265 switch (map_index) {
2266 case cmd_map_transfer:
2267 if_debug0('L', " transfer");
2268 map = pis->set_transfer.colored.gray;
2269 pis->effective_transfer.indexed[0] =
2270 pis->effective_transfer.indexed[1] =
2271 pis->effective_transfer.indexed[2] =
2272 pis->effective_transfer.indexed[3] =
2273 map;
2274 goto transfer;
2275 case cmd_map_transfer_0:
2276 case cmd_map_transfer_1:
2277 case cmd_map_transfer_2:
2278 case cmd_map_transfer_3:
2279 {
2280 int i = map_index - cmd_map_transfer_0;
2281
2282 if_debug1('L', " transfer[%d]", i);
2283 rc_unshare_struct(pis->set_transfer.indexed[i], gx_transfer_map,
2284 &st_transfer_map, mem,
2285 return_error(gs_error_VMerror),
2286 "cmd_select_map(transfer)");
2287 map = pis->set_transfer.indexed[i];
2288 pis->effective_transfer.indexed[i] = map;
2289 }
2290 transfer: if (cont != cmd_map_other) {
2291 gx_set_identity_transfer(map);
2292 *pmdata = 0;
2293 *pcount = 0;
2294 return 0;
2295 }
2296 break;
2297 case cmd_map_ht_transfer:
2298 if_debug0('L', " ht transfer");
2299 /* Halftone transfer maps are never shared, but */
2300 /* rc_unshare_struct is a good way to get one allocated */
2301 /* if it hasn't been yet. */
2302 pmap = &porder->transfer;
2303 cname = "cmd_select_map(ht transfer)";
2304 goto alloc;
2305 case cmd_map_black_generation:
2306 if_debug0('L', " black generation");
2307 pmap = &pis->black_generation;
2308 cname = "cmd_select_map(black generation)";
2309 goto alloc;
2310 case cmd_map_undercolor_removal:
2311 if_debug0('L', " undercolor removal");
2312 pmap = &pis->undercolor_removal;
2313 cname = "cmd_select_map(undercolor removal)";
2314 alloc: if (cont == cmd_map_none) {
2315 rc_decrement(*pmap, cname);
2316 *pmap = 0;
2317 *pmdata = 0;
2318 *pcount = 0;
2319 return 0;
2320 }
2321 rc_unshare_struct(*pmap, gx_transfer_map, &st_transfer_map,
2322 mem, return_error(gs_error_VMerror), cname);
2323 map = *pmap;
2324 if (cont == cmd_map_identity) {
2325 gx_set_identity_transfer(map);
2326 *pmdata = 0;
2327 *pcount = 0;
2328 return 0;
2329 }
2330 break;
2331 default:
2332 *pmdata = 0;
2333 return 0;
2334 }
2335 map->proc = gs_mapped_transfer;
2336 *pmdata = map->values;
2337 *pcount = sizeof(map->values);
2338 return 0;
2339 }
2340
2341 /* Create a device halftone for the imager if necessary. */
2342 private int
cmd_create_dev_ht(gx_device_halftone ** ppdht,gs_memory_t * mem)2343 cmd_create_dev_ht(gx_device_halftone **ppdht, gs_memory_t *mem)
2344 {
2345 gx_device_halftone *pdht = *ppdht;
2346
2347 if (pdht == 0) {
2348 rc_header rc;
2349
2350 rc_alloc_struct_1(pdht, gx_device_halftone, &st_device_halftone, mem,
2351 return_error(gs_error_VMerror),
2352 "cmd_create_dev_ht");
2353 rc = pdht->rc;
2354 memset(pdht, 0, sizeof(*pdht));
2355 pdht->rc = rc;
2356 *ppdht = pdht;
2357 }
2358 return 0;
2359 }
2360
2361 /* Resize the halftone components array if necessary. */
2362 private int
cmd_resize_halftone(gx_device_halftone ** ppdht,uint num_comp,gs_memory_t * mem)2363 cmd_resize_halftone(gx_device_halftone **ppdht, uint num_comp,
2364 gs_memory_t * mem)
2365 {
2366 int code = cmd_create_dev_ht(ppdht, mem);
2367 gx_device_halftone *pdht = *ppdht;
2368
2369 if (code < 0)
2370 return code;
2371 if (num_comp != pdht->num_comp) {
2372 gx_ht_order_component *pcomp;
2373
2374 /*
2375 * We must be careful not to shrink or free the components array
2376 * before releasing any relevant elements.
2377 */
2378 if (num_comp < pdht->num_comp) {
2379 uint i;
2380
2381 /* Don't release the default order. */
2382 for (i = pdht->num_comp; i-- > num_comp;)
2383 if (pdht->components[i].corder.bit_data != pdht->order.bit_data)
2384 gx_ht_order_release(&pdht->components[i].corder, mem, true);
2385 if (num_comp == 0) {
2386 gs_free_object(mem, pdht->components, "cmd_resize_halftone");
2387 pcomp = 0;
2388 } else {
2389 pcomp = gs_resize_object(mem, pdht->components, num_comp,
2390 "cmd_resize_halftone");
2391 if (pcomp == 0) {
2392 pdht->num_comp = num_comp; /* attempt consistency */
2393 return_error(gs_error_VMerror);
2394 }
2395 }
2396 } else {
2397 /* num_comp > pdht->num_comp */
2398 if (pdht->num_comp == 0)
2399 pcomp = gs_alloc_struct_array(mem, num_comp,
2400 gx_ht_order_component,
2401 &st_ht_order_component_element,
2402 "cmd_resize_halftone");
2403 else
2404 pcomp = gs_resize_object(mem, pdht->components, num_comp,
2405 "cmd_resize_halftone");
2406 if (pcomp == 0)
2407 return_error(gs_error_VMerror);
2408 memset(&pcomp[pdht->num_comp], 0,
2409 sizeof(*pcomp) * (num_comp - pdht->num_comp));
2410 }
2411 pdht->num_comp = num_comp;
2412 pdht->components = pcomp;
2413 }
2414 return 0;
2415 }
2416
2417 /* ------ Path operations ------ */
2418
2419 /* Decode a path segment. */
2420 private int
clist_decode_segment(gx_path * ppath,int op,fixed vs[6],gs_fixed_point * ppos,int x0,int y0,segment_notes notes)2421 clist_decode_segment(gx_path * ppath, int op, fixed vs[6],
2422 gs_fixed_point * ppos, int x0, int y0, segment_notes notes)
2423 {
2424 fixed px = ppos->x - int2fixed(x0);
2425 fixed py = ppos->y - int2fixed(y0);
2426 int code;
2427
2428 #define A vs[0]
2429 #define B vs[1]
2430 #define C vs[2]
2431 #define D vs[3]
2432 #define E vs[4]
2433 #define F vs[5]
2434
2435 switch (op) {
2436 case cmd_opv_rmoveto:
2437 code = gx_path_add_point(ppath, px += A, py += B);
2438 break;
2439 case cmd_opv_rlineto:
2440 code = gx_path_add_line_notes(ppath, px += A, py += B, notes);
2441 break;
2442 case cmd_opv_hlineto:
2443 code = gx_path_add_line_notes(ppath, px += A, py, notes);
2444 break;
2445 case cmd_opv_vlineto:
2446 code = gx_path_add_line_notes(ppath, px, py += A, notes);
2447 break;
2448 case cmd_opv_rmlineto:
2449 if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0)
2450 break;
2451 code = gx_path_add_line_notes(ppath, px += C, py += D, notes);
2452 break;
2453 case cmd_opv_rm2lineto:
2454 if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0 ||
2455 (code = gx_path_add_line_notes(ppath, px += C, py += D,
2456 notes)) < 0
2457 )
2458 break;
2459 code = gx_path_add_line_notes(ppath, px += E, py += F, notes);
2460 break;
2461 case cmd_opv_rm3lineto:
2462 if ((code = gx_path_add_point(ppath, px += A, py += B)) < 0 ||
2463 (code = gx_path_add_line_notes(ppath, px += C, py += D,
2464 notes)) < 0 ||
2465 (code = gx_path_add_line_notes(ppath, px += E, py += F,
2466 notes)) < 0
2467 )
2468 break;
2469 code = gx_path_add_line_notes(ppath, px -= C, py -= D, notes);
2470 break;
2471 case cmd_opv_rrcurveto: /* a b c d e f => a b a+c b+d a+c+e b+d+f */
2472 rrc: E += (C += A);
2473 F += (D += B);
2474 curve: code = gx_path_add_curve_notes(ppath, px + A, py + B,
2475 px + C, py + D,
2476 px + E, py + F, notes);
2477 px += E, py += F;
2478 break;
2479 case cmd_opv_hvcurveto: /* a b c d => a 0 a+b c a+b c+d */
2480 hvc: F = C + D, D = C, E = C = A + B, B = 0;
2481 goto curve;
2482 case cmd_opv_vhcurveto: /* a b c d => 0 a b a+c b+d a+c */
2483 vhc: E = B + D, F = D = A + C, C = B, B = A, A = 0;
2484 goto curve;
2485 case cmd_opv_nrcurveto: /* a b c d => 0 0 a b a+c b+d */
2486 F = B + D, E = A + C, D = B, C = A, B = A = 0;
2487 goto curve;
2488 case cmd_opv_rncurveto: /* a b c d => a b a+c b+d a+c b+d */
2489 F = D += B, E = C += A;
2490 goto curve;
2491 case cmd_opv_vqcurveto: /* a b => VH a b TS(a,b) TS(b,a) */
2492 if ((A ^ B) < 0)
2493 C = -B, D = -A;
2494 else
2495 C = B, D = A;
2496 goto vhc;
2497 case cmd_opv_hqcurveto: /* a b => HV a TS(a,b) b TS(b,a) */
2498 if ((A ^ B) < 0)
2499 D = -A, C = B, B = -B;
2500 else
2501 D = A, C = B;
2502 goto hvc;
2503 case cmd_opv_scurveto: /* (a b c d e f) => */
2504 {
2505 fixed a = A, b = B;
2506
2507 /* See gxclpath.h for details on the following. */
2508 if (A == 0) {
2509 /* Previous curve was vh or vv */
2510 A = E - C, B = D - F, C = C - a, D = b - D, E = a, F = -b;
2511 } else {
2512 /* Previous curve was hv or hh */
2513 A = C - E, B = F - D, C = a - C, D = D - b, E = -a, F = b;
2514 }
2515 }
2516 goto rrc;
2517 case cmd_opv_closepath:
2518 code = gx_path_close_subpath(ppath);
2519 gx_path_current_point(ppath, (gs_fixed_point *) vs);
2520 px = A, py = B;
2521 break;
2522 default:
2523 return_error(gs_error_rangecheck);
2524 }
2525 #undef A
2526 #undef B
2527 #undef C
2528 #undef D
2529 #undef E
2530 #undef F
2531 ppos->x = px + int2fixed(x0);
2532 ppos->y = py + int2fixed(y0);
2533 return code;
2534 }
2535
2536 /*
2537 * Execute a polyfill -- either a fill_parallelogram or a fill_triangle.
2538 * If we ever implement fill_trapezoid in the band list, that will be
2539 * detected here too.
2540 *
2541 * Note that degenerate parallelograms or triangles may collapse into
2542 * a single line or point. We must check for this so we don't try to
2543 * access non-existent segments.
2544 */
2545 private int
clist_do_polyfill(gx_device * dev,gx_path * ppath,const gx_drawing_color * pdcolor,gs_logical_operation_t lop)2546 clist_do_polyfill(gx_device *dev, gx_path *ppath,
2547 const gx_drawing_color *pdcolor,
2548 gs_logical_operation_t lop)
2549 {
2550 const subpath *psub = ppath->first_subpath;
2551 const segment *pseg1;
2552 const segment *pseg2;
2553 int code;
2554
2555 if (psub && (pseg1 = psub->next) != 0 && (pseg2 = pseg1->next) != 0) {
2556 fixed px = psub->pt.x, py = psub->pt.y;
2557 fixed ax = pseg1->pt.x - px, ay = pseg1->pt.y - py;
2558 fixed bx, by;
2559 /*
2560 * We take advantage of the fact that the parameter lists for
2561 * fill_parallelogram and fill_triangle are identical.
2562 */
2563 dev_proc_fill_parallelogram((*fill));
2564
2565 if (pseg2->next) {
2566 /* Parallelogram */
2567 fill = dev_proc(dev, fill_parallelogram);
2568 bx = pseg2->pt.x - pseg1->pt.x;
2569 by = pseg2->pt.y - pseg1->pt.y;
2570 } else {
2571 /* Triangle */
2572 fill = dev_proc(dev, fill_triangle);
2573 bx = pseg2->pt.x - px;
2574 by = pseg2->pt.y - py;
2575 }
2576 code = fill(dev, px, py, ax, ay, bx, by, pdcolor, lop);
2577 } else
2578 code = 0;
2579 gx_path_new(ppath);
2580 return code;
2581 }
2582