/[rdesktop]/sourceforge.net/trunk/rdesktop/orders.c
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Contents of /sourceforge.net/trunk/rdesktop/orders.c

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Revision 64 - (show annotations)
Thu Jul 18 16:38:31 2002 UTC (21 years, 11 months ago) by astrand
File MIME type: text/plain
File size: 19765 byte(s)
Fixed indentation with indent

1 /*
2 rdesktop: A Remote Desktop Protocol client.
3 RDP order processing
4 Copyright (C) Matthew Chapman 1999-2001
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include "rdesktop.h"
22 #include "orders.h"
23
24 extern uint8 *next_packet;
25 static RDP_ORDER_STATE order_state;
26
27 /* Read field indicating which parameters are present */
28 static void
29 rdp_in_present(STREAM s, uint32 * present, uint8 flags, int size)
30 {
31 uint8 bits;
32 int i;
33
34 if (flags & RDP_ORDER_SMALL)
35 {
36 size--;
37 }
38
39 if (flags & RDP_ORDER_TINY)
40 {
41 if (size < 2)
42 size = 0;
43 else
44 size -= 2;
45 }
46
47 *present = 0;
48 for (i = 0; i < size; i++)
49 {
50 in_uint8(s, bits);
51 *present |= bits << (i * 8);
52 }
53 }
54
55 /* Read a co-ordinate (16-bit, or 8-bit delta) */
56 static void
57 rdp_in_coord(STREAM s, uint16 * coord, BOOL delta)
58 {
59 uint8 change;
60
61 if (delta)
62 {
63 in_uint8(s, change);
64 *coord += (signed char) change;
65 }
66 else
67 {
68 in_uint16_le(s, *coord);
69 }
70 }
71
72 /* Read a colour entry */
73 static void
74 rdp_in_colour(STREAM s, uint8 * colour)
75 {
76 in_uint8(s, *colour);
77 s->p += 2;
78 }
79
80 /* Parse bounds information */
81 static BOOL
82 rdp_parse_bounds(STREAM s, BOUNDS * bounds)
83 {
84 uint8 present;
85
86 in_uint8(s, present);
87
88 if (present & 1)
89 rdp_in_coord(s, &bounds->left, False);
90 else if (present & 16)
91 rdp_in_coord(s, &bounds->left, True);
92
93 if (present & 2)
94 rdp_in_coord(s, &bounds->top, False);
95 else if (present & 32)
96 rdp_in_coord(s, &bounds->top, True);
97
98 if (present & 4)
99 rdp_in_coord(s, &bounds->right, False);
100 else if (present & 64)
101 rdp_in_coord(s, &bounds->right, True);
102
103 if (present & 8)
104 rdp_in_coord(s, &bounds->bottom, False);
105 else if (present & 128)
106 rdp_in_coord(s, &bounds->bottom, True);
107
108 return s_check(s);
109 }
110
111 /* Parse a pen */
112 static BOOL
113 rdp_parse_pen(STREAM s, PEN * pen, uint32 present)
114 {
115 if (present & 1)
116 in_uint8(s, pen->style);
117
118 if (present & 2)
119 in_uint8(s, pen->width);
120
121 if (present & 4)
122 rdp_in_colour(s, &pen->colour);
123
124 return s_check(s);
125 }
126
127 /* Parse a brush */
128 static BOOL
129 rdp_parse_brush(STREAM s, BRUSH * brush, uint32 present)
130 {
131 if (present & 1)
132 in_uint8(s, brush->xorigin);
133
134 if (present & 2)
135 in_uint8(s, brush->yorigin);
136
137 if (present & 4)
138 in_uint8(s, brush->style);
139
140 if (present & 8)
141 in_uint8(s, brush->pattern[0]);
142
143 if (present & 16)
144 in_uint8a(s, &brush->pattern[1], 7);
145
146 return s_check(s);
147 }
148
149 /* Process a destination blt order */
150 static void
151 process_destblt(STREAM s, DESTBLT_ORDER * os, uint32 present, BOOL delta)
152 {
153 if (present & 0x01)
154 rdp_in_coord(s, &os->x, delta);
155
156 if (present & 0x02)
157 rdp_in_coord(s, &os->y, delta);
158
159 if (present & 0x04)
160 rdp_in_coord(s, &os->cx, delta);
161
162 if (present & 0x08)
163 rdp_in_coord(s, &os->cy, delta);
164
165 if (present & 0x10)
166 in_uint8(s, os->opcode);
167
168 DEBUG(("DESTBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d)\n",
169 os->opcode, os->x, os->y, os->cx, os->cy));
170
171 ui_destblt(ROP2_S(os->opcode), os->x, os->y, os->cx, os->cy);
172 }
173
174 /* Process a pattern blt order */
175 static void
176 process_patblt(STREAM s, PATBLT_ORDER * os, uint32 present, BOOL delta)
177 {
178 if (present & 0x0001)
179 rdp_in_coord(s, &os->x, delta);
180
181 if (present & 0x0002)
182 rdp_in_coord(s, &os->y, delta);
183
184 if (present & 0x0004)
185 rdp_in_coord(s, &os->cx, delta);
186
187 if (present & 0x0008)
188 rdp_in_coord(s, &os->cy, delta);
189
190 if (present & 0x0010)
191 in_uint8(s, os->opcode);
192
193 if (present & 0x0020)
194 rdp_in_colour(s, &os->bgcolour);
195
196 if (present & 0x0040)
197 rdp_in_colour(s, &os->fgcolour);
198
199 rdp_parse_brush(s, &os->brush, present >> 7);
200
201 DEBUG(("PATBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d,bs=%d,bg=0x%x,fg=0x%x)\n", os->opcode, os->x, os->y, os->cx, os->cy, os->brush.style, os->bgcolour, os->fgcolour));
202
203 ui_patblt(ROP2_P(os->opcode), os->x, os->y, os->cx, os->cy,
204 &os->brush, os->bgcolour, os->fgcolour);
205 }
206
207 /* Process a screen blt order */
208 static void
209 process_screenblt(STREAM s, SCREENBLT_ORDER * os, uint32 present, BOOL delta)
210 {
211 if (present & 0x0001)
212 rdp_in_coord(s, &os->x, delta);
213
214 if (present & 0x0002)
215 rdp_in_coord(s, &os->y, delta);
216
217 if (present & 0x0004)
218 rdp_in_coord(s, &os->cx, delta);
219
220 if (present & 0x0008)
221 rdp_in_coord(s, &os->cy, delta);
222
223 if (present & 0x0010)
224 in_uint8(s, os->opcode);
225
226 if (present & 0x0020)
227 rdp_in_coord(s, &os->srcx, delta);
228
229 if (present & 0x0040)
230 rdp_in_coord(s, &os->srcy, delta);
231
232 DEBUG(("SCREENBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d,srcx=%d,srcy=%d)\n",
233 os->opcode, os->x, os->y, os->cx, os->cy, os->srcx, os->srcy));
234
235 ui_screenblt(ROP2_S(os->opcode), os->x, os->y, os->cx, os->cy,
236 os->srcx, os->srcy);
237 }
238
239 /* Process a line order */
240 static void
241 process_line(STREAM s, LINE_ORDER * os, uint32 present, BOOL delta)
242 {
243 if (present & 0x0001)
244 in_uint16_le(s, os->mixmode);
245
246 if (present & 0x0002)
247 rdp_in_coord(s, &os->startx, delta);
248
249 if (present & 0x0004)
250 rdp_in_coord(s, &os->starty, delta);
251
252 if (present & 0x0008)
253 rdp_in_coord(s, &os->endx, delta);
254
255 if (present & 0x0010)
256 rdp_in_coord(s, &os->endy, delta);
257
258 if (present & 0x0020)
259 rdp_in_colour(s, &os->bgcolour);
260
261 if (present & 0x0040)
262 in_uint8(s, os->opcode);
263
264 rdp_parse_pen(s, &os->pen, present >> 7);
265
266 DEBUG(("LINE(op=0x%x,sx=%d,sy=%d,dx=%d,dx=%d,fg=0x%x)\n",
267 os->opcode, os->startx, os->starty, os->endx, os->endy,
268 os->pen.colour));
269
270 if (os->opcode < 0x01 || os->opcode > 0x10)
271 {
272 error("bad ROP2 0x%x\n", os->opcode);
273 return;
274 }
275
276 ui_line(os->opcode - 1, os->startx, os->starty,
277 os->endx, os->endy, &os->pen);
278 }
279
280 /* Process an opaque rectangle order */
281 static void
282 process_rect(STREAM s, RECT_ORDER * os, uint32 present, BOOL delta)
283 {
284 if (present & 0x01)
285 rdp_in_coord(s, &os->x, delta);
286
287 if (present & 0x02)
288 rdp_in_coord(s, &os->y, delta);
289
290 if (present & 0x04)
291 rdp_in_coord(s, &os->cx, delta);
292
293 if (present & 0x08)
294 rdp_in_coord(s, &os->cy, delta);
295
296 if (present & 0x10)
297 in_uint8(s, os->colour);
298
299 DEBUG(("RECT(x=%d,y=%d,cx=%d,cy=%d,fg=0x%x)\n",
300 os->x, os->y, os->cx, os->cy, os->colour));
301
302 ui_rect(os->x, os->y, os->cx, os->cy, os->colour);
303 }
304
305 /* Process a desktop save order */
306 static void
307 process_desksave(STREAM s, DESKSAVE_ORDER * os, uint32 present, BOOL delta)
308 {
309 int width, height;
310
311 if (present & 0x01)
312 in_uint32_le(s, os->offset);
313
314 if (present & 0x02)
315 rdp_in_coord(s, &os->left, delta);
316
317 if (present & 0x04)
318 rdp_in_coord(s, &os->top, delta);
319
320 if (present & 0x08)
321 rdp_in_coord(s, &os->right, delta);
322
323 if (present & 0x10)
324 rdp_in_coord(s, &os->bottom, delta);
325
326 if (present & 0x20)
327 in_uint8(s, os->action);
328
329 DEBUG(("DESKSAVE(l=%d,t=%d,r=%d,b=%d,off=%d,op=%d)\n",
330 os->left, os->top, os->right, os->bottom, os->offset,
331 os->action));
332
333 width = os->right - os->left + 1;
334 height = os->bottom - os->top + 1;
335
336 if (os->action == 0)
337 ui_desktop_save(os->offset, os->left, os->top, width, height);
338 else
339 ui_desktop_restore(os->offset, os->left, os->top, width,
340 height);
341 }
342
343 /* Process a memory blt order */
344 static void
345 process_memblt(STREAM s, MEMBLT_ORDER * os, uint32 present, BOOL delta)
346 {
347 HBITMAP bitmap;
348
349 if (present & 0x0001)
350 {
351 in_uint8(s, os->cache_id);
352 in_uint8(s, os->colour_table);
353 }
354
355 if (present & 0x0002)
356 rdp_in_coord(s, &os->x, delta);
357
358 if (present & 0x0004)
359 rdp_in_coord(s, &os->y, delta);
360
361 if (present & 0x0008)
362 rdp_in_coord(s, &os->cx, delta);
363
364 if (present & 0x0010)
365 rdp_in_coord(s, &os->cy, delta);
366
367 if (present & 0x0020)
368 in_uint8(s, os->opcode);
369
370 if (present & 0x0040)
371 rdp_in_coord(s, &os->srcx, delta);
372
373 if (present & 0x0080)
374 rdp_in_coord(s, &os->srcy, delta);
375
376 if (present & 0x0100)
377 in_uint16_le(s, os->cache_idx);
378
379 DEBUG(("MEMBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d,id=%d,idx=%d)\n",
380 os->opcode, os->x, os->y, os->cx, os->cy, os->cache_id,
381 os->cache_idx));
382
383 bitmap = cache_get_bitmap(os->cache_id, os->cache_idx);
384 if (bitmap == NULL)
385 return;
386
387 ui_memblt(ROP2_S(os->opcode), os->x, os->y, os->cx, os->cy,
388 bitmap, os->srcx, os->srcy);
389 }
390
391 /* Process a 3-way blt order */
392 static void
393 process_triblt(STREAM s, TRIBLT_ORDER * os, uint32 present, BOOL delta)
394 {
395 HBITMAP bitmap;
396
397 if (present & 0x000001)
398 {
399 in_uint8(s, os->cache_id);
400 in_uint8(s, os->colour_table);
401 }
402
403 if (present & 0x000002)
404 rdp_in_coord(s, &os->x, delta);
405
406 if (present & 0x000004)
407 rdp_in_coord(s, &os->y, delta);
408
409 if (present & 0x000008)
410 rdp_in_coord(s, &os->cx, delta);
411
412 if (present & 0x000010)
413 rdp_in_coord(s, &os->cy, delta);
414
415 if (present & 0x000020)
416 in_uint8(s, os->opcode);
417
418 if (present & 0x000040)
419 rdp_in_coord(s, &os->srcx, delta);
420
421 if (present & 0x000080)
422 rdp_in_coord(s, &os->srcy, delta);
423
424 if (present & 0x000100)
425 rdp_in_colour(s, &os->bgcolour);
426
427 if (present & 0x000200)
428 rdp_in_colour(s, &os->fgcolour);
429
430 rdp_parse_brush(s, &os->brush, present >> 10);
431
432 if (present & 0x008000)
433 in_uint16_le(s, os->cache_idx);
434
435 if (present & 0x010000)
436 in_uint16_le(s, os->unknown);
437
438 DEBUG(("TRIBLT(op=0x%x,x=%d,y=%d,cx=%d,cy=%d,id=%d,idx=%d,bs=%d,bg=0x%x,fg=0x%x)\n", os->opcode, os->x, os->y, os->cx, os->cy, os->cache_id, os->cache_idx, os->brush.style, os->bgcolour, os->fgcolour));
439
440 bitmap = cache_get_bitmap(os->cache_id, os->cache_idx);
441 if (bitmap == NULL)
442 return;
443
444 ui_triblt(os->opcode, os->x, os->y, os->cx, os->cy,
445 bitmap, os->srcx, os->srcy,
446 &os->brush, os->bgcolour, os->fgcolour);
447 }
448
449 /* Parse a delta co-ordinate in polyline order form */
450 static int
451 parse_delta(uint8 * buffer, int *offset)
452 {
453 int value = buffer[(*offset)++];
454 int two_byte = value & 0x80;
455
456 if (value & 0x40) /* sign bit */
457 value |= ~0x3f;
458 else
459 value &= 0x3f;
460
461 if (two_byte)
462 value = (value << 8) | buffer[(*offset)++];
463
464 return value;
465 }
466
467 /* Process a polyline order */
468 static void
469 process_polyline(STREAM s, POLYLINE_ORDER * os, uint32 present, BOOL delta)
470 {
471 int index, line, data;
472 int x, y, xfrom, yfrom;
473 uint8 flags = 0;
474 PEN pen;
475 uint8 opcode;
476
477 if (present & 0x01)
478 rdp_in_coord(s, &os->x, delta);
479
480 if (present & 0x02)
481 rdp_in_coord(s, &os->y, delta);
482
483 if (present & 0x04)
484 in_uint8(s, os->flags);
485
486 if (present & 0x10)
487 rdp_in_colour(s, &os->fgcolour);
488
489 if (present & 0x20)
490 in_uint8(s, os->lines);
491
492 if (present & 0x40)
493 {
494 in_uint8(s, os->datasize);
495 in_uint8a(s, os->data, os->datasize);
496 }
497 if (os->flags & 1)
498 opcode = ROP2_COPY;
499 else
500 opcode = ROP2_NXOR;
501
502 DEBUG(("POLYLINE(x=%d,y=%d,fl=0x%x,fg=0x%x,n=%d,sz=%d)\n",
503 os->x, os->y, os->flags, os->fgcolour, os->lines,
504 os->datasize));
505
506 DEBUG(("Data: "));
507
508 for (index = 0; index < os->datasize; index++)
509 DEBUG(("%02x ", os->data[index]));
510
511 DEBUG(("\n"));
512
513 x = os->x;
514 y = os->y;
515 pen.style = pen.width = 0;
516 pen.colour = os->fgcolour;
517
518 index = 0;
519 data = ((os->lines - 1) / 4) + 1;
520 for (line = 0; (line < os->lines) && (data < os->datasize); line++)
521 {
522 xfrom = x;
523 yfrom = y;
524
525 if (line % 4 == 0)
526 flags = os->data[index++];
527
528 if ((flags & 0xc0) == 0)
529 flags |= 0xc0; /* none = both */
530
531 if (flags & 0x40)
532 x += parse_delta(os->data, &data);
533
534 if (flags & 0x80)
535 y += parse_delta(os->data, &data);
536
537 ui_line(opcode, xfrom, yfrom, x, y, &pen);
538
539 flags <<= 2;
540 }
541 }
542
543 /* Process a text order */
544 static void
545 process_text2(STREAM s, TEXT2_ORDER * os, uint32 present, BOOL delta)
546 {
547 int i;
548
549 if (present & 0x000001)
550 in_uint8(s, os->font);
551
552 if (present & 0x000002)
553 in_uint8(s, os->flags);
554
555 if (present & 0x000004)
556 in_uint8(s, os->unknown);
557
558 if (present & 0x000008)
559 in_uint8(s, os->mixmode);
560
561 if (present & 0x000010)
562 rdp_in_colour(s, &os->fgcolour);
563
564 if (present & 0x000020)
565 rdp_in_colour(s, &os->bgcolour);
566
567 if (present & 0x000040)
568 in_uint16_le(s, os->clipleft);
569
570 if (present & 0x000080)
571 in_uint16_le(s, os->cliptop);
572
573 if (present & 0x000100)
574 in_uint16_le(s, os->clipright);
575
576 if (present & 0x000200)
577 in_uint16_le(s, os->clipbottom);
578
579 if (present & 0x000400)
580 in_uint16_le(s, os->boxleft);
581
582 if (present & 0x000800)
583 in_uint16_le(s, os->boxtop);
584
585 if (present & 0x001000)
586 in_uint16_le(s, os->boxright);
587
588 if (present & 0x002000)
589 in_uint16_le(s, os->boxbottom);
590
591 if (present & 0x080000)
592 in_uint16_le(s, os->x);
593
594 if (present & 0x100000)
595 in_uint16_le(s, os->y);
596
597 if (present & 0x200000)
598 {
599 in_uint8(s, os->length);
600 in_uint8a(s, os->text, os->length);
601 }
602
603 DEBUG(("TEXT2(x=%d,y=%d,cl=%d,ct=%d,cr=%d,cb=%d,bl=%d,bt=%d,bb=%d,br=%d,fg=0x%x,bg=0x%x,font=%d,fl=0x%x,mix=%d,unk=0x%x,n=%d)\n", os->x, os->y, os->clipleft, os->cliptop, os->clipright, os->clipbottom, os->boxleft, os->boxtop, os->boxright, os->boxbottom, os->fgcolour, os->bgcolour, os->font, os->flags, os->mixmode, os->unknown, os->length));
604
605 DEBUG(("Text: "));
606
607 for (i = 0; i < os->length; i++)
608 DEBUG(("%02x ", os->text[i]));
609
610 DEBUG(("\n"));
611
612 ui_draw_text(os->font, os->flags, os->mixmode, os->x, os->y,
613 os->clipleft, os->cliptop,
614 os->clipright - os->clipleft,
615 os->clipbottom - os->cliptop,
616 os->boxleft, os->boxtop,
617 os->boxright - os->boxleft,
618 os->boxbottom - os->boxtop,
619 os->bgcolour, os->fgcolour, os->text, os->length);
620 }
621
622 /* Process a raw bitmap cache order */
623 static void
624 process_raw_bmpcache(STREAM s)
625 {
626 HBITMAP bitmap;
627 uint16 cache_idx, bufsize;
628 uint8 cache_id, width, height, bpp;
629 uint8 *data, *inverted;
630 int y;
631
632 in_uint8(s, cache_id);
633 in_uint8s(s, 1); /* pad */
634 in_uint8(s, width);
635 in_uint8(s, height);
636 in_uint8(s, bpp);
637 in_uint16_le(s, bufsize);
638 in_uint16_le(s, cache_idx);
639 in_uint8p(s, data, bufsize);
640
641 DEBUG(("RAW_BMPCACHE(cx=%d,cy=%d,id=%d,idx=%d)\n",
642 width, height, cache_id, cache_idx));
643 inverted = xmalloc(width * height);
644 for (y = 0; y < height; y++)
645 {
646 memcpy(&inverted[(height - y - 1) * width], &data[y * width],
647 width);
648 }
649
650 bitmap = ui_create_bitmap(width, height, inverted);
651 xfree(inverted);
652 cache_put_bitmap(cache_id, cache_idx, bitmap);
653 }
654
655 /* Process a bitmap cache order */
656 static void
657 process_bmpcache(STREAM s)
658 {
659 HBITMAP bitmap;
660 uint16 cache_idx, size;
661 uint8 cache_id, width, height, bpp;
662 uint8 *data, *bmpdata;
663
664 in_uint8(s, cache_id);
665 in_uint8s(s, 1); /* pad */
666 in_uint8(s, width);
667 in_uint8(s, height);
668 in_uint8(s, bpp);
669 in_uint8s(s, 2); /* bufsize */
670 in_uint16_le(s, cache_idx);
671 in_uint8s(s, 2); /* pad */
672 in_uint16_le(s, size);
673 in_uint8s(s, 4); /* row_size, final_size */
674 in_uint8p(s, data, size);
675
676 DEBUG(("BMPCACHE(cx=%d,cy=%d,id=%d,idx=%d)\n",
677 width, height, cache_id, cache_idx));
678
679 bmpdata = xmalloc(width * height);
680
681 if (bitmap_decompress(bmpdata, width, height, data, size))
682 {
683 bitmap = ui_create_bitmap(width, height, bmpdata);
684 cache_put_bitmap(cache_id, cache_idx, bitmap);
685 }
686
687 xfree(bmpdata);
688 }
689
690 /* Process a colourmap cache order */
691 static void
692 process_colcache(STREAM s)
693 {
694 COLOURENTRY *entry;
695 COLOURMAP map;
696 HCOLOURMAP hmap;
697 uint8 cache_id;
698 int i;
699
700 in_uint8(s, cache_id);
701 in_uint16_le(s, map.ncolours);
702
703 map.colours = xmalloc(3 * map.ncolours);
704
705 for (i = 0; i < map.ncolours; i++)
706 {
707 entry = &map.colours[i];
708 in_uint8(s, entry->blue);
709 in_uint8(s, entry->green);
710 in_uint8(s, entry->red);
711 in_uint8s(s, 1); /* pad */
712 }
713
714 DEBUG(("COLCACHE(id=%d,n=%d)\n", cache_id, map.ncolours));
715
716 hmap = ui_create_colourmap(&map);
717 ui_set_colourmap(hmap);
718
719 xfree(map.colours);
720 }
721
722 /* Process a font cache order */
723 static void
724 process_fontcache(STREAM s)
725 {
726 HGLYPH bitmap;
727 uint8 font, nglyphs;
728 uint16 character, offset, baseline, width, height;
729 int i, datasize;
730 uint8 *data;
731
732 in_uint8(s, font);
733 in_uint8(s, nglyphs);
734
735 DEBUG(("FONTCACHE(font=%d,n=%d)\n", font, nglyphs));
736
737 for (i = 0; i < nglyphs; i++)
738 {
739 in_uint16_le(s, character);
740 in_uint16_le(s, offset);
741 in_uint16_le(s, baseline);
742 in_uint16_le(s, width);
743 in_uint16_le(s, height);
744
745 datasize = (height * ((width + 7) / 8) + 3) & ~3;
746 in_uint8p(s, data, datasize);
747
748 bitmap = ui_create_glyph(width, height, data);
749 cache_put_font(font, character, offset, baseline,
750 width, height, bitmap);
751 }
752 }
753
754 /* Process a secondary order */
755 static void
756 process_secondary_order(STREAM s)
757 {
758 uint16 length;
759 uint8 type;
760 uint8 *next_order;
761
762 in_uint16_le(s, length);
763 in_uint8s(s, 2); /* flags */
764 in_uint8(s, type);
765
766 next_order = s->p + length + 7;
767
768 switch (type)
769 {
770 case RDP_ORDER_RAW_BMPCACHE:
771 process_raw_bmpcache(s);
772 break;
773
774 case RDP_ORDER_COLCACHE:
775 process_colcache(s);
776 break;
777
778 case RDP_ORDER_BMPCACHE:
779 process_bmpcache(s);
780 break;
781
782 case RDP_ORDER_FONTCACHE:
783 process_fontcache(s);
784 break;
785
786 default:
787 unimpl("secondary order %d\n", type);
788 }
789
790 s->p = next_order;
791 }
792
793 /* Process an order PDU */
794 void
795 process_orders(STREAM s)
796 {
797 RDP_ORDER_STATE *os = &order_state;
798 uint32 present;
799 uint16 num_orders;
800 uint8 order_flags;
801 int size, processed = 0;
802 BOOL delta;
803
804 in_uint8s(s, 2); /* pad */
805 in_uint16_le(s, num_orders);
806 in_uint8s(s, 2); /* pad */
807
808 while (processed < num_orders)
809 {
810 in_uint8(s, order_flags);
811
812 if (!(order_flags & RDP_ORDER_STANDARD))
813 {
814 error("order parsing failed\n");
815 break;
816 }
817
818 if (order_flags & RDP_ORDER_SECONDARY)
819 {
820 process_secondary_order(s);
821 }
822 else
823 {
824 if (order_flags & RDP_ORDER_CHANGE)
825 {
826 in_uint8(s, os->order_type);
827 }
828
829 switch (os->order_type)
830 {
831 case RDP_ORDER_TRIBLT:
832 case RDP_ORDER_TEXT2:
833 size = 3;
834 break;
835
836 case RDP_ORDER_PATBLT:
837 case RDP_ORDER_MEMBLT:
838 case RDP_ORDER_LINE:
839 size = 2;
840 break;
841
842 default:
843 size = 1;
844 }
845
846 rdp_in_present(s, &present, order_flags, size);
847
848 if (order_flags & RDP_ORDER_BOUNDS)
849 {
850 if (!(order_flags & RDP_ORDER_LASTBOUNDS))
851 rdp_parse_bounds(s, &os->bounds);
852
853 ui_set_clip(os->bounds.left,
854 os->bounds.top,
855 os->bounds.right -
856 os->bounds.left + 1,
857 os->bounds.bottom -
858 os->bounds.top + 1);
859 }
860
861 delta = order_flags & RDP_ORDER_DELTA;
862
863 switch (os->order_type)
864 {
865 case RDP_ORDER_DESTBLT:
866 process_destblt(s, &os->destblt,
867 present, delta);
868 break;
869
870 case RDP_ORDER_PATBLT:
871 process_patblt(s, &os->patblt,
872 present, delta);
873 break;
874
875 case RDP_ORDER_SCREENBLT:
876 process_screenblt(s, &os->screenblt,
877 present, delta);
878 break;
879
880 case RDP_ORDER_LINE:
881 process_line(s, &os->line,
882 present, delta);
883 break;
884
885 case RDP_ORDER_RECT:
886 process_rect(s, &os->rect,
887 present, delta);
888 break;
889
890 case RDP_ORDER_DESKSAVE:
891 process_desksave(s, &os->desksave,
892 present, delta);
893 break;
894
895 case RDP_ORDER_MEMBLT:
896 process_memblt(s, &os->memblt,
897 present, delta);
898 break;
899
900 case RDP_ORDER_TRIBLT:
901 process_triblt(s, &os->triblt,
902 present, delta);
903 break;
904
905 case RDP_ORDER_POLYLINE:
906 process_polyline(s, &os->polyline,
907 present, delta);
908 break;
909
910 case RDP_ORDER_TEXT2:
911 process_text2(s, &os->text2,
912 present, delta);
913 break;
914
915 default:
916 unimpl("order %d\n", os->order_type);
917 return;
918 }
919
920 if (order_flags & RDP_ORDER_BOUNDS)
921 ui_reset_clip();
922 }
923
924 processed++;
925 }
926
927 if (s->p != next_packet)
928 error("%d bytes remaining\n", (int) (next_packet - s->p));
929 }
930
931 /* Reset order state */
932 void
933 reset_order_state()
934 {
935 memset(&order_state, 0, sizeof(order_state));
936 order_state.order_type = RDP_ORDER_PATBLT;
937 }

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