ReactOS 0.4.15-dev-7654-g6bc40d3
gendib.c
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1/*
2 * Copyright 2005 Ge van Geldorp (gvg@reactos.com).
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18/*
19 * This is a code generator. It outputs C code which can be compiled using the
20 * standard build tools. It is used to generate code for the DIB Blt routines.
21 * There are a lot of possible Blt routines (256 rop codes, for 6 different
22 * bit depths). It is possible to use a generic Blt routine which handles all
23 * rop codes and all depths. The drawback is that it will be relatively slow.
24 * The other extreme is to write (generate) a separate Blt routine for each
25 * rop code/depth combination. This will result in a extremely large amount
26 * of code. So, we opt for something in between: named rops get their own
27 * routine, unnamed rops are handled by a generic routine.
28 * Basically, what happens is that generic code which looks like:
29 *
30 * for (...)
31 * {
32 * if (CondA)
33 * {
34 * doSomethingA;
35 * }
36 * for (...)
37 * {
38 * if (CondB)
39 * {
40 * doSomethingB;
41 * }
42 * else
43 * {
44 * doSomethingElseB;
45 * }
46 * }
47 * }
48 *
49 * is specialized for named rops to look like:
50 *
51 * if (condC)
52 * {
53 * if (condD)
54 * {
55 * for (...)
56 * {
57 * for (...)
58 * {
59 * pumpSomeBytes;
60 * }
61 * }
62 * }
63 * else
64 * {
65 * for (...)
66 * {
67 * for (...)
68 * {
69 * pumpSomeBytesSlightlyDifferentE;
70 * }
71 * }
72 * }
73 * }
74 *
75 * i.e. we make the inner loops as tight as possible.
76 * Another optimization is to try to load/store 32 alligned bits at a time from
77 * video memory. Accessing video memory from the CPU is slooooooow, so let's
78 * try to do this as little as possible, even if that means we have to do some
79 * extra operations using main memory.
80 */
81
82#include <stdarg.h>
83#include <stdio.h>
84#include <stdlib.h>
85#include <string.h>
86
87#define NDEBUG
88
89#define USES_DEST(RopCode) ((((RopCode) & 0xaa) >> 1) != ((RopCode) & 0x55))
90#define USES_SOURCE(RopCode) ((((RopCode) & 0xcc) >> 2) != ((RopCode) & 0x33))
91#define USES_PATTERN(RopCode) ((((RopCode) & 0xf0) >> 4) != ((RopCode) & 0x0f))
92
93#ifdef NDEBUG
94#define MARK(Out)
95#else
96#define MARK(Out) Output((Out), "/* Generated by %s line %d*/\n", \
97 __FUNCTION__, __LINE__);
98#endif
99
100#define ROPCODE_BLACKNESS 0x00
101#define ROPCODE_NOTSRCERASE 0x11
102#define ROPCODE_NOTSRCCOPY 0x33
103#define ROPCODE_SRCERASE 0x44
104#define ROPCODE_DSTINVERT 0x55
105#define ROPCODE_PATINVERT 0x5a
106#define ROPCODE_SRCINVERT 0x66
107#define ROPCODE_SRCAND 0x88
108#define ROPCODE_NOOP 0xaa
109#define ROPCODE_MERGEPAINT 0xbb
110#define ROPCODE_MERGECOPY 0xc0
111#define ROPCODE_SRCCOPY 0xcc
112#define ROPCODE_SRCPAINT 0xee
113#define ROPCODE_PATCOPY 0xf0
114#define ROPCODE_PATPAINT 0xfb
115#define ROPCODE_WHITENESS 0xff
116
117#define ROPCODE_GENERIC 256 /* Special case */
118
119typedef struct _ROPINFO
120{
121 unsigned RopCode;
122 const char *Name;
123 const char *Operation;
127}
129
130#define FLAG_PATTERNSURFACE 0x01
131#define FLAG_TRIVIALXLATE 0x02
132#define FLAG_BOTTOMUP 0x04
133#define FLAG_FORCENOUSESSOURCE 0x08
134#define FLAG_FORCERAWSOURCEAVAIL 0x10
135
136static PROPINFO
137FindRopInfo(unsigned RopCode)
138{
139 static ROPINFO KnownCodes[] =
140 {
141 { ROPCODE_BLACKNESS, "BLACKNESS", "0", 0, 0, 0 },
142 { ROPCODE_NOTSRCERASE, "NOTSRCERASE","~(D | S)", 1, 1, 0 },
143 { ROPCODE_NOTSRCCOPY, "NOTSRCCOPY", "~S", 0, 1, 0 },
144 { ROPCODE_SRCERASE, "SRCERASE", "(~D) & S", 1, 1, 0 },
145 { ROPCODE_DSTINVERT, "DSTINVERT", "~D", 1, 0, 0 },
146 { ROPCODE_PATINVERT, "PATINVERT", "D ^ P", 1, 0, 1 },
147 { ROPCODE_SRCINVERT, "SRCINVERT", "D ^ S", 1, 1, 0 },
148 { ROPCODE_SRCAND, "SRCAND", "D & S", 1, 1, 0 },
149 { ROPCODE_NOOP, "NOOP", "D", 1, 0, 0 },
150 { ROPCODE_MERGEPAINT, "MERGEPAINT", "D | (~S)", 1, 1, 0 },
151 { ROPCODE_MERGECOPY, "MERGECOPY", "S & P", 0, 1, 1 },
152 { ROPCODE_SRCCOPY, "SRCCOPY", "S", 0, 1, 0 },
153 { ROPCODE_SRCPAINT, "SRCPAINT", "D | S", 1, 1, 0 },
154 { ROPCODE_PATCOPY, "PATCOPY", "P", 0, 0, 1 },
155 { ROPCODE_PATPAINT, "PATPAINT", "D | (~S) | P", 1, 1, 1 },
156 { ROPCODE_WHITENESS, "WHITENESS", "0xffffffff", 0, 0, 0 },
157 { ROPCODE_GENERIC, NULL, NULL, 1, 1, 1 }
158 };
159 unsigned Index;
160
161 for (Index = 0; Index < sizeof(KnownCodes) / sizeof(KnownCodes[0]); Index++)
162 {
163 if (RopCode == KnownCodes[Index].RopCode)
164 {
165 return KnownCodes + Index;
166 }
167 }
168
169 return NULL;
170}
171
172static void
173Output(FILE *Out, const char *Fmt, ...)
174{
175 static unsigned Indent = 0;
176 static int AtBOL = 1;
177 unsigned n;
179
180 if (strchr(Fmt, '}'))
181 {
182 Indent -= 4;
183 }
184
185 if (AtBOL)
186 {
187 for (n = 0; n < Indent; n++)
188 {
189 putc(' ', Out);
190 }
191 AtBOL = 0;
192 }
193
194 va_start(Args, Fmt);
195 vfprintf(Out, Fmt, Args);
196 va_end(Args);
197
198 if (strchr(Fmt, '{'))
199 {
200 Indent += 4;
201 }
202
203 AtBOL = '\n' == Fmt[strlen(Fmt) - 1];
204}
205
206static void
207PrintRoutineName(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
208{
209 if (NULL != RopInfo && ROPCODE_GENERIC != RopInfo->RopCode)
210 {
211 Output(Out, "DIB_%uBPP_BitBlt_%s", Bpp, RopInfo->Name);
212 }
213 else
214 {
215 Output(Out, "DIB_%uBPP_BitBlt_Generic", Bpp);
216 }
217}
218
219static void
221{
222 Output(Out, "\n");
223 Output(Out, "static unsigned Shift1Bpp[] =\n");
224 Output(Out, "{\n");
225 Output(Out, "0,\n");
226 Output(Out, "24, 25, 26, 27, 28, 29, 30, 31, 16, 17, 18, 19, 20, 21, 22, 23,\n");
227 Output(Out, "8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7\n");
228 Output(Out, "};\n");
229 Output(Out, "static unsigned Shift4Bpp[] =\n");
230 Output(Out, "{\n");
231 Output(Out, "0,\n");
232 Output(Out, "24, 28, 16, 20, 8, 12, 0, 4\n");
233 Output(Out, "};\n");
234 Output(Out, "static unsigned Shift8Bpp[] =\n");
235 Output(Out, "{\n");
236 Output(Out, "0,\n");
237 Output(Out, "24, 16, 8, 0\n");
238 Output(Out, "};\n");
239 Output(Out, "static unsigned Shift16Bpp[] =\n");
240 Output(Out, "{\n");
241 Output(Out, "0,\n");
242 Output(Out, "16, 0\n");
243 Output(Out, "};\n");
244}
245
246static void
247CreateOperation(FILE *Out, unsigned Bpp, PROPINFO RopInfo, unsigned SourceBpp,
248 unsigned Bits)
249{
250 const char *Cast;
251 const char *Dest;
252 const char *Template;
253
254 MARK(Out);
255 if (32 == Bits)
256 {
257 Cast = "";
258 Dest = "*DestPtr";
259 }
260 else if (16 == Bpp)
261 {
262 Cast = "(USHORT) ";
263 Dest = "*((PUSHORT) DestPtr)";
264 }
265 else
266 {
267 Cast = "(UCHAR) ";
268 Dest = "*((PUCHAR) DestPtr)";
269 }
270 Output(Out, "%s = ", Dest);
271 if (ROPCODE_GENERIC == RopInfo->RopCode)
272 {
273 Output(Out, "%sDIB_DoRop(BltInfo->Rop4, %s, Source, Pattern)",
274 Cast, Dest);
275 }
276 else
277 {
278 Template = RopInfo->Operation;
279 while ('\0' != *Template)
280 {
281 switch(*Template)
282 {
283 case 'S':
284 Output(Out, "%sSource", Cast);
285 break;
286 case 'P':
287 Output(Out, "%sPattern", Cast);
288 break;
289 case 'D':
290 Output(Out, "%s", Dest);
291 break;
292 default:
293 Output(Out, "%c", *Template);
294 break;
295 }
296 Template++;
297 }
298 }
299}
300
301static void
302CreateBase(FILE *Out, int Source, int Flags, unsigned Bpp)
303{
304 const char *What = (Source ? "Source" : "Dest");
305
306 MARK(Out);
307 Output(Out, "%sBase = (char *) BltInfo->%sSurface->pvScan0 +\n", What, What);
308 if (0 == (Flags & FLAG_BOTTOMUP))
309 {
310 if (Source)
311 {
312 Output(Out, " BltInfo->SourcePoint.y *\n");
313 }
314 else
315 {
316 Output(Out, " BltInfo->DestRect.top *\n");
317 }
318 }
319 else
320 {
321 if (Source)
322 {
323 Output(Out, " (BltInfo->SourcePoint.y +\n");
324 Output(Out, " BltInfo->DestRect.bottom -\n");
325 Output(Out, " BltInfo->DestRect.top - 1) *\n");
326 }
327 else
328 {
329 Output(Out, " (BltInfo->DestRect.bottom - 1) *\n");
330 }
331 }
332 Output(Out, " %sBltInfo->%sSurface->lDelta +\n",
333 Source ? " " : "", What);
334 if (Source)
335 {
336 Output(Out, " %sBltInfo->SourcePoint.x",
337 16 < Bpp ? "" : "((");
338 }
339 else
340 {
341 Output(Out, " BltInfo->DestRect.left");
342 }
343 if (Bpp < 8)
344 {
345 Output(Out, " / %u", 8 / Bpp);
346 }
347 else if (8 < Bpp)
348 {
349 Output(Out, " * %u", Bpp / 8);
350 }
351 if (Source && Bpp <= 16)
352 {
353 Output(Out, ") & ~ 0x3)");
354 }
355 Output(Out, ";\n", Bpp / 8);
356 if (Source && Bpp <= 16)
357 {
358 Output(Out, "BaseSourcePixels = %u - (BltInfo->SourcePoint.x & 0x%x);\n",
359 32 / Bpp, 32 / Bpp - 1);
360 }
361}
362
363static void
364CreateGetSource(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
365 unsigned SourceBpp, unsigned Shift)
366{
367 const char *AssignOp;
368 const char *Before;
369 char After[8];
370
371 MARK(Out);
372 if (0 == Shift)
373 {
374 AssignOp = "=";
375 Before = "";
376 After[0] = '\0';
377 }
378 else
379 {
380 AssignOp = "|=";
381 Before = "(";
382 sprintf(After, ") << %u", Shift);
383 }
384
385 if (ROPCODE_SRCCOPY != RopInfo->RopCode ||
386 0 == (Flags & FLAG_TRIVIALXLATE) || Bpp != SourceBpp)
387 {
388 if (0 == (Flags & FLAG_FORCERAWSOURCEAVAIL) && SourceBpp <= 16)
389 {
390 Output(Out, "if (0 == SourcePixels)\n");
391 Output(Out, "{\n");
392 Output(Out, "RawSource = *SourcePtr++;\n");
393 Output(Out, "SourcePixels = %u;\n", 32 / SourceBpp);
394 Output(Out, "}\n");
395 }
396 Output(Out, "Source %s (%s", AssignOp, Before);
397 if (0 == (Flags & FLAG_TRIVIALXLATE))
398 {
399 Output(Out, "XLATEOBJ_iXlate(BltInfo->XlateSourceToDest, %s",
400 16 < SourceBpp ? "" : "(");
401 }
402 if (32 == SourceBpp)
403 {
404 Output(Out, "*SourcePtr++");
405 }
406 else if (24 == SourceBpp)
407 {
408 Output(Out, "*(PUSHORT) SourcePtr + (*((PBYTE) SourcePtr + 2) << 16)");
409 }
410 else
411 {
412 Output(Out, "RawSource >> Shift%uBpp[SourcePixels]", SourceBpp);
413 }
414 if (0 == (Flags & FLAG_TRIVIALXLATE))
415 {
416 if (16 < SourceBpp)
417 {
418 Output(Out, ")");
419 }
420 else
421 {
422 Output(Out, ") & 0x%x)", (1 << SourceBpp) - 1);
423 }
424 }
425 if (32 == Bpp)
426 {
427 Output(Out, ")%s;\n", After);
428 }
429 else
430 {
431 Output(Out, " & 0x%x)%s;\n", (1 << Bpp) - 1, After);
432 }
433 if (SourceBpp <= 16)
434 {
435 Output(Out, "SourcePixels--;\n");
436 }
437 else if (24 == SourceBpp)
438 {
439 Output(Out, "SourcePtr = (PULONG)((char *) SourcePtr + 3);\n");
440 }
441 }
442}
443
444static void
445CreateCounts(FILE *Out, unsigned Bpp)
446{
447 MARK(Out);
448 if (32 != Bpp)
449 {
450 if (8 < Bpp)
451 {
452 Output(Out, "LeftCount = ((ULONG_PTR) DestBase >> 1) & 0x01;\n");
453 }
454 else
455 {
456 Output(Out, "LeftCount = (ULONG_PTR) DestBase & 0x03;\n");
457 Output(Out, "if ((ULONG)(BltInfo->DestRect.right - BltInfo->DestRect.left) < "
458 "LeftCount)\n");
459 Output(Out, "{\n");
460 Output(Out, "LeftCount = BltInfo->DestRect.right - "
461 "BltInfo->DestRect.left;\n");
462 Output(Out, "}\n");
463 }
464 Output(Out, "CenterCount = (BltInfo->DestRect.right - BltInfo->DestRect.left -\n");
465 Output(Out, " LeftCount) / %u;\n", 32 / Bpp);
466 Output(Out, "RightCount = (BltInfo->DestRect.right - BltInfo->DestRect.left -\n");
467 Output(Out, " LeftCount - %u * CenterCount);\n", 32 / Bpp);
468 }
469 else
470 {
471 Output(Out, "CenterCount = BltInfo->DestRect.right - BltInfo->DestRect.left;\n");
472 }
473}
474
475static void
476CreateSetSinglePixel(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
477 unsigned SourceBpp)
478{
479 if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
480 {
481 CreateGetSource(Out, Bpp, RopInfo, Flags, SourceBpp, 0);
482 MARK(Out);
483 }
484 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
485 {
486 Output(Out, "Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY);\n");
487 Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cx <= ++PatternX)\n");
488 Output(Out, "{\n");
489 Output(Out, "PatternX -= BltInfo->PatternSurface->sizlBitmap.cx;\n");
490 Output(Out, "}\n");
491 }
492 if ((RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE) &&
493 Bpp != SourceBpp) ||
494 (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE)))
495 {
496 Output(Out, "\n");
497 }
498 CreateOperation(Out, Bpp, RopInfo, SourceBpp, 16);
499 Output(Out, ";\n");
500 MARK(Out);
501 Output(Out, "\n");
502 Output(Out, "DestPtr = (PULONG)((char *) DestPtr + %u);\n", Bpp / 8);
503}
504
505static void
506CreateBitCase(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags,
507 unsigned SourceBpp)
508{
509 unsigned Partial;
510
511 MARK(Out);
512 if (RopInfo->UsesSource)
513 {
514 if (0 == (Flags & FLAG_FORCENOUSESSOURCE))
515 {
516 CreateBase(Out, 1, Flags, SourceBpp);
517 }
518 CreateBase(Out, 0, Flags, Bpp);
519 CreateCounts(Out, Bpp);
520 MARK(Out);
521 }
522 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
523 {
524 if (0 == (Flags & FLAG_BOTTOMUP))
525 {
526 Output(Out, "PatternY = (BltInfo->DestRect.top - BltInfo->BrushOrigin.y) %%\n");
527 Output(Out, " BltInfo->PatternSurface->sizlBitmap.cy;\n");
528 }
529 else
530 {
531 Output(Out, "PatternY = (BltInfo->DestRect.bottom - 1 -\n");
532 Output(Out, " BltInfo->BrushOrigin.y) %%\n");
533 Output(Out, " BltInfo->PatternSurface->sizlBitmap.cy;\n");
534 }
535 }
536 if (ROPCODE_SRCCOPY == RopInfo->RopCode &&
537 0 != (Flags & FLAG_TRIVIALXLATE) && Bpp == SourceBpp)
538 {
539 Output(Out, "CenterCount = %u * (BltInfo->DestRect.right -\n", Bpp >> 3);
540 Output(Out, " BltInfo->DestRect.left);\n");
541 }
542 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
543 {
544 Output(Out, "BasePatternX = (BltInfo->DestRect.left - BltInfo->BrushOrigin.x) %%\n");
545 Output(Out, " BltInfo->PatternSurface->sizlBitmap.cx;\n");
546 }
547
548 Output(Out, "for (LineIndex = 0; LineIndex < LineCount; LineIndex++)\n");
549 Output(Out, "{\n");
550 if (ROPCODE_SRCCOPY != RopInfo->RopCode ||
551 0 == (Flags & FLAG_TRIVIALXLATE) || Bpp != SourceBpp)
552 {
553 if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
554 {
555 Output(Out, "SourcePtr = (PULONG) SourceBase;\n");
556 if (SourceBpp <= 16)
557 {
558 Output(Out, "RawSource = *SourcePtr++;\n");
559 Output(Out, "SourcePixels = BaseSourcePixels;\n");
560 }
561 }
562 Output(Out, "DestPtr = (PULONG) DestBase;\n");
563 }
564
565 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
566 {
567 Output(Out, "PatternX = BasePatternX;\n");
568 }
569
570 if (ROPCODE_SRCCOPY == RopInfo->RopCode &&
571 0 != (Flags & FLAG_TRIVIALXLATE) && Bpp == SourceBpp)
572 {
573 Output(Out, "RtlMoveMemory(DestBase, SourceBase, CenterCount);\n");
574 Output(Out, "\n");
575 }
576 else
577 {
578 Output(Out, "\n");
579 if (32 != Bpp)
580 {
581 if (16 == Bpp)
582 {
583 Output(Out, "if (0 != LeftCount)\n");
584 }
585 else
586 {
587 Output(Out, "for (i = 0; i < LeftCount; i++)\n");
588 }
589 Output(Out, "{\n");
590 CreateSetSinglePixel(Out, Bpp, RopInfo,
591 (16 == Bpp ? Flags | FLAG_FORCERAWSOURCEAVAIL :
592 Flags), SourceBpp);
593 MARK(Out);
594 Output(Out, "}\n");
595 Output(Out, "\n");
596 }
597 Output(Out, "for (i = 0; i < CenterCount; i++)\n");
598 Output(Out, "{\n");
599 if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
600 {
601 for (Partial = 0; Partial < 32 / Bpp; Partial++)
602 {
603 CreateGetSource(Out, Bpp, RopInfo, Flags, SourceBpp,
604 Partial * Bpp);
605 MARK(Out);
606 }
607 Output(Out, "\n");
608 }
609 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
610 {
611 for (Partial = 0; Partial < 32 / Bpp; Partial++)
612 {
613 if (0 == Partial)
614 {
615 Output(Out, "Pattern = DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY);\n");
616 }
617 else
618 {
619 Output(Out, "Pattern |= DIB_GetSourceIndex(BltInfo->PatternSurface, PatternX, PatternY) << %u;\n", Partial * Bpp);
620 }
621 Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cx <= ++PatternX)\n");
622 Output(Out, "{\n");
623 Output(Out, "PatternX -= BltInfo->PatternSurface->sizlBitmap.cx;\n");
624 Output(Out, "}\n");
625 }
626 Output(Out, "\n");
627 }
628 CreateOperation(Out, Bpp, RopInfo, SourceBpp, 32);
629 Output(Out, ";\n");
630 MARK(Out);
631 Output(Out, "\n");
632 Output(Out, "DestPtr++;\n");
633 Output(Out, "}\n");
634 Output(Out, "\n");
635 if (32 != Bpp)
636 {
637 if (16 == Bpp)
638 {
639 Output(Out, "if (0 != RightCount)\n");
640 }
641 else
642 {
643 Output(Out, "for (i = 0; i < RightCount; i++)\n");
644 }
645 Output(Out, "{\n");
646 CreateSetSinglePixel(Out, Bpp, RopInfo, Flags, SourceBpp);
647 MARK(Out);
648 Output(Out, "}\n");
649 Output(Out, "\n");
650 }
651 if (RopInfo->UsesPattern && 0 != (Flags & FLAG_PATTERNSURFACE))
652 {
653 if (0 == (Flags & FLAG_BOTTOMUP))
654 {
655 Output(Out, "if (BltInfo->PatternSurface->sizlBitmap.cy <= ++PatternY)\n");
656 Output(Out, "{\n");
657 Output(Out, "PatternY -= BltInfo->PatternSurface->sizlBitmap.cy;\n");
658 Output(Out, "}\n");
659 }
660 else
661 {
662 Output(Out, "if (0 == PatternY--)\n");
663 Output(Out, "{\n");
664 Output(Out, "PatternY = BltInfo->PatternSurface->sizlBitmap.cy - 1;\n");
665 Output(Out, "}\n");
666 }
667 }
668 }
669 if (RopInfo->UsesSource && 0 == (Flags & FLAG_FORCENOUSESSOURCE))
670 {
671 Output(Out, "SourceBase %c= BltInfo->SourceSurface->lDelta;\n",
672 0 == (Flags & FLAG_BOTTOMUP) ? '+' : '-');
673 }
674 Output(Out, "DestBase %c= BltInfo->DestSurface->lDelta;\n",
675 0 == (Flags & FLAG_BOTTOMUP) ? '+' : '-');
676 Output(Out, "}\n");
677}
678
679static void
680CreateActionBlock(FILE *Out, unsigned Bpp, PROPINFO RopInfo,
681 int Flags)
682{
683 static unsigned SourceBpp[ ] =
684 { 1, 4, 8, 16, 24, 32 };
685 unsigned BppIndex;
686
687 MARK(Out);
688 if (RopInfo->UsesSource)
689 {
690 if (ROPCODE_GENERIC == RopInfo->RopCode)
691 {
692 Output(Out, "if (UsesSource)\n");
693 Output(Out, "{\n");
694 }
695 Output(Out, "switch (BltInfo->SourceSurface->iBitmapFormat)\n");
696 Output(Out, "{\n");
697 for (BppIndex = 0;
698 BppIndex < sizeof(SourceBpp) / sizeof(unsigned);
699 BppIndex++)
700 {
701 Output(Out, "case BMF_%uBPP:\n", SourceBpp[BppIndex]);
702 Output(Out, "{\n");
703 if (Bpp == SourceBpp[BppIndex])
704 {
705 Output(Out, "if (NULL == BltInfo->XlateSourceToDest ||\n");
706 Output(Out, " 0 != (BltInfo->XlateSourceToDest->flXlate & XO_TRIVIAL))\n");
707 Output(Out, "{\n");
708 Output(Out, "if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)\n");
709 Output(Out, "{\n");
710 CreateBitCase(Out, Bpp, RopInfo,
712 SourceBpp[BppIndex]);
713 MARK(Out);
714 Output(Out, "}\n");
715 Output(Out, "else\n");
716 Output(Out, "{\n");
717 CreateBitCase(Out, Bpp, RopInfo,
719 SourceBpp[BppIndex]);
720 MARK(Out);
721 Output(Out, "}\n");
722 Output(Out, "}\n");
723 Output(Out, "else\n");
724 Output(Out, "{\n");
725 Output(Out, "if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)\n");
726 Output(Out, "{\n");
727 CreateBitCase(Out, Bpp, RopInfo, Flags, SourceBpp[BppIndex]);
728 MARK(Out);
729 Output(Out, "}\n");
730 Output(Out, "else\n");
731 Output(Out, "{\n");
732 CreateBitCase(Out, Bpp, RopInfo,
734 SourceBpp[BppIndex]);
735 MARK(Out);
736 Output(Out, "}\n");
737 Output(Out, "}\n");
738 }
739 else
740 {
741 CreateBitCase(Out, Bpp, RopInfo, Flags,
742 SourceBpp[BppIndex]);
743 MARK(Out);
744 }
745 Output(Out, "break;\n");
746 Output(Out, "}\n");
747 }
748 Output(Out, "}\n");
749 if (ROPCODE_GENERIC == RopInfo->RopCode)
750 {
751 Output(Out, "}\n");
752 Output(Out, "else\n");
753 Output(Out, "{\n");
754 CreateBitCase(Out, Bpp, RopInfo, Flags | FLAG_FORCENOUSESSOURCE, 0);
755 MARK(Out);
756 Output(Out, "}\n");
757 }
758 }
759 else
760 {
761 CreateBitCase(Out, Bpp, RopInfo, Flags, 0);
762 }
763}
764
765static void
766CreatePrimitive(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
767{
768 int First;
769 unsigned Partial;
770
771 MARK(Out);
772 Output(Out, "\n");
773 Output(Out, "static void\n");
774 PrintRoutineName(Out, Bpp, RopInfo);
775 Output(Out, "(PBLTINFO BltInfo)\n");
776 Output(Out, "{\n");
777 if (ROPCODE_BLACKNESS == RopInfo->RopCode)
778 {
779 Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
780 "&BltInfo->DestRect, 0x0);\n", Bpp);
781 }
782 else if (ROPCODE_WHITENESS == RopInfo->RopCode)
783 {
784 Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
785 "&BltInfo->DestRect, ~0);\n", Bpp);
786 }
787 else if (ROPCODE_NOOP == RopInfo->RopCode)
788 {
789 Output(Out, "return;\n");
790 }
791 else
792 {
793 Output(Out, "ULONG LineIndex, LineCount;\n");
794 Output(Out, "ULONG i;\n");
795 if (RopInfo->UsesPattern)
796 {
797 Output(Out, "LONG PatternX =0, PatternY = 0, BasePatternX = 0;\n");
798 }
799 First = 1;
800 if (RopInfo->UsesSource)
801 {
802 Output(Out, "ULONG Source = 0");
803 First = 0;
804 }
805 if (RopInfo->UsesPattern)
806 {
807 Output(Out, "%s Pattern = 0", First ? "ULONG" : ",");
808 First = 0;
809 }
810 if (! First)
811 {
812 Output(Out, ";\n");
813 }
814 Output(Out, "char *DestBase;\n");
815 Output(Out, "PULONG DestPtr;\n");
816 if (RopInfo->UsesSource)
817 {
818 Output(Out, "char *SourceBase;\n");
819 Output(Out, "PULONG SourcePtr;\n");
820 Output(Out, "ULONG RawSource;\n");
821 Output(Out, "unsigned SourcePixels, BaseSourcePixels;\n");
822 }
823 if (32 == Bpp)
824 {
825 Output(Out, "ULONG CenterCount;\n");
826 }
827 else
828 {
829 Output(Out, "ULONG LeftCount, CenterCount, RightCount;\n");
830 }
831 if (ROPCODE_GENERIC == RopInfo->RopCode)
832 {
833 Output(Out, "BOOLEAN UsesSource, UsesPattern;\n");
834 Output(Out, "\n");
835 Output(Out, "UsesSource = ROP4_USES_SOURCE(BltInfo->Rop4);\n");
836 Output(Out, "UsesPattern = ROP4_USES_PATTERN(BltInfo->Rop4);\n");
837 }
838 Output(Out, "\n");
839 if (! RopInfo->UsesSource)
840 {
841 CreateBase(Out, 0, 0, Bpp);
842 CreateCounts(Out, Bpp);
843 MARK(Out);
844 }
845 Output(Out, "LineCount = BltInfo->DestRect.bottom - BltInfo->DestRect.top;\n");
846
847 Output(Out, "\n");
848 if (RopInfo->UsesPattern)
849 {
850 if (ROPCODE_GENERIC == RopInfo->RopCode)
851 {
852 Output(Out, "if (UsesPattern && NULL != BltInfo->PatternSurface)\n");
853 }
854 else
855 {
856 Output(Out, "if (NULL != BltInfo->PatternSurface)\n");
857 }
858 Output(Out, "{\n");
860 MARK(Out);
861 Output(Out, "}\n");
862 Output(Out, "else\n");
863 Output(Out, "{\n");
864 if (ROPCODE_GENERIC == RopInfo->RopCode)
865 {
866 Output(Out, "if (UsesPattern)\n");
867 Output(Out, "{\n");
868 }
869 for (Partial = 0; Partial < 32 / Bpp; Partial++)
870 {
871 if (0 == Partial)
872 {
873 Output(Out, "if (!BltInfo->Brush)\n");
874 Output(Out, "{\n");
875 Output(Out, "Pattern = 0;\n");
876 Output(Out, "}\n");
877 Output(Out, "else\n");
878 Output(Out, "{\n");
879 Output(Out, "Pattern = BltInfo->Brush->iSolidColor");
880 }
881 else
882 {
883 Output(Out, " (BltInfo->Brush->iSolidColor << %d)",
884 Partial * Bpp);
885 }
886 if (32 / Bpp <= Partial + 1)
887 {
888 Output(Out, ";\n");
889 Output(Out, "}\n");
890 }
891 else
892 {
893 Output(Out, " |\n");
894 }
895 }
896 if (ROPCODE_PATINVERT == RopInfo->RopCode ||
897 ROPCODE_MERGECOPY == RopInfo->RopCode)
898 {
899 Output(Out, "if (0 == Pattern)\n");
900 Output(Out, "{\n");
901 if (ROPCODE_MERGECOPY == RopInfo->RopCode)
902 {
903 Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
904 "&BltInfo->DestRect, 0x0);\n", Bpp);
905 }
906 Output(Out, "return;\n");
907 Output(Out, "}\n");
908 }
909 else if (ROPCODE_PATPAINT == RopInfo->RopCode)
910 {
911 Output(Out, "if ((~0) == Pattern)\n");
912 Output(Out, "{\n");
913 Output(Out, "DIB_%uBPP_ColorFill(BltInfo->DestSurface, "
914 "&BltInfo->DestRect, ~0);\n", Bpp);
915 Output(Out, "return;\n");
916 Output(Out, "}\n");
917 }
918 if (ROPCODE_GENERIC == RopInfo->RopCode)
919 {
920 Output(Out, "}\n");
921 }
922 CreateActionBlock(Out, Bpp, RopInfo, 0);
923 MARK(Out);
924 Output(Out, "}\n");
925 }
926 else
927 {
928 CreateActionBlock(Out, Bpp, RopInfo, 0);
929 MARK(Out);
930 }
931 }
932 Output(Out, "}\n");
933}
934
935static void
936CreateTable(FILE *Out, unsigned Bpp)
937{
938 unsigned RopCode;
939
940 MARK(Out);
941 Output(Out, "\n");
942 Output(Out, "static void (*PrimitivesTable[256])(PBLTINFO) =\n");
943 Output(Out, "{\n");
944 for (RopCode = 0; RopCode < 256; RopCode++)
945 {
946 PrintRoutineName(Out, Bpp, FindRopInfo(RopCode));
947 if (RopCode < 255)
948 {
949 Output(Out, ",");
950 }
951 Output(Out, "\n");
952 }
953 Output(Out, "};\n");
954}
955
956static void
957CreateBitBlt(FILE *Out, unsigned Bpp)
958{
959 MARK(Out);
960 Output(Out, "\n");
961 Output(Out, "BOOLEAN\n");
962 Output(Out, "DIB_%uBPP_BitBlt(PBLTINFO BltInfo)\n", Bpp);
963 Output(Out, "{\n");
964 Output(Out, "PrimitivesTable[BltInfo->Rop4 & 0xff](BltInfo);\n");
965 Output(Out, "\n");
966 Output(Out, "return TRUE;\n");
967 Output(Out, "}\n");
968}
969
970static void
971Generate(char *OutputDir, unsigned Bpp)
972{
973 FILE *Out;
974 unsigned RopCode;
975 PROPINFO RopInfo;
976 char *FileName;
977
978 FileName = malloc(strlen(OutputDir) + 12);
979 if (NULL == FileName)
980 {
981 fprintf(stderr, "Out of memory\n");
982 exit(1);
983 }
984 strcpy(FileName, OutputDir);
985 if ('/' != FileName[strlen(FileName) - 1])
986 {
987 strcat(FileName, "/");
988 }
989 sprintf(FileName + strlen(FileName), "dib%ugen.c", Bpp);
990
991 Out = fopen(FileName, "w");
992 free(FileName);
993 if (NULL == Out)
994 {
995 perror("Error opening output file");
996 exit(1);
997 }
998
999 MARK(Out);
1000 Output(Out, "/* This is a generated file. Please do not edit */\n");
1001 Output(Out, "\n");
1002 Output(Out, "#include <win32k.h>\n");
1004
1005 RopInfo = FindRopInfo(ROPCODE_GENERIC);
1006 CreatePrimitive(Out, Bpp, RopInfo);
1007 for (RopCode = 0; RopCode < 256; RopCode++)
1008 {
1009 RopInfo = FindRopInfo(RopCode);
1010 if (NULL != RopInfo)
1011 {
1012 CreatePrimitive(Out, Bpp, RopInfo);
1013 }
1014 }
1015 CreateTable(Out, Bpp);
1016 CreateBitBlt(Out, Bpp);
1017
1018 fclose(Out);
1019}
1020
1021int
1022main(int argc, char *argv[])
1023{
1024 unsigned Index;
1025 static unsigned DestBpp[] =
1026 { 8, 16, 32 };
1027
1028 if (argc < 2)
1029 return 0;
1030
1031 for (Index = 0; Index < sizeof(DestBpp) / sizeof(DestBpp[0]); Index++)
1032 {
1033 Generate(argv[1], DestBpp[Index]);
1034 }
1035
1036 return 0;
1037}
WCHAR First[]
Definition: FormatMessage.c:11
static int argc
Definition: ServiceArgs.c:12
char * strcat(char *DstString, const char *SrcString)
Definition: utclib.c:568
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
char * strcpy(char *DstString, const char *SrcString)
Definition: utclib.c:388
char * strchr(const char *String, int ch)
Definition: utclib.c:501
char ** Args
Definition: acdebug.h:353
char * va_list
Definition: acmsvcex.h:78
#define va_end(ap)
Definition: acmsvcex.h:90
#define va_start(ap, A)
Definition: acmsvcex.h:91
#define free
Definition: debug_ros.c:5
#define malloc
Definition: debug_ros.c:4
@ Out
#define NULL
Definition: types.h:112
int main()
Definition: test.c:6
struct _FileName FileName
Definition: fatprocs.h:896
#define FLAG_FORCERAWSOURCEAVAIL
Definition: gendib.c:134
#define ROPCODE_SRCERASE
Definition: gendib.c:103
#define ROPCODE_NOTSRCCOPY
Definition: gendib.c:102
static void CreateSetSinglePixel(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags, unsigned SourceBpp)
Definition: gendib.c:476
static void CreateGetSource(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags, unsigned SourceBpp, unsigned Shift)
Definition: gendib.c:364
#define FLAG_PATTERNSURFACE
Definition: gendib.c:130
#define ROPCODE_PATCOPY
Definition: gendib.c:113
#define ROPCODE_SRCAND
Definition: gendib.c:107
struct _ROPINFO * PROPINFO
static void CreateOperation(FILE *Out, unsigned Bpp, PROPINFO RopInfo, unsigned SourceBpp, unsigned Bits)
Definition: gendib.c:247
static void CreateCounts(FILE *Out, unsigned Bpp)
Definition: gendib.c:445
#define ROPCODE_PATINVERT
Definition: gendib.c:105
static void CreateActionBlock(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags)
Definition: gendib.c:680
#define ROPCODE_SRCCOPY
Definition: gendib.c:111
static void CreatePrimitive(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
Definition: gendib.c:766
static void CreateBase(FILE *Out, int Source, int Flags, unsigned Bpp)
Definition: gendib.c:302
#define ROPCODE_NOOP
Definition: gendib.c:108
#define ROPCODE_PATPAINT
Definition: gendib.c:114
#define ROPCODE_SRCINVERT
Definition: gendib.c:106
static void CreateTable(FILE *Out, unsigned Bpp)
Definition: gendib.c:936
#define FLAG_FORCENOUSESSOURCE
Definition: gendib.c:133
#define MARK(Out)
Definition: gendib.c:94
#define ROPCODE_MERGEPAINT
Definition: gendib.c:109
#define FLAG_BOTTOMUP
Definition: gendib.c:132
#define FLAG_TRIVIALXLATE
Definition: gendib.c:131
static PROPINFO FindRopInfo(unsigned RopCode)
Definition: gendib.c:137
#define ROPCODE_WHITENESS
Definition: gendib.c:115
static void CreateBitBlt(FILE *Out, unsigned Bpp)
Definition: gendib.c:957
#define ROPCODE_GENERIC
Definition: gendib.c:117
#define ROPCODE_SRCPAINT
Definition: gendib.c:112
static void CreateShiftTables(FILE *Out)
Definition: gendib.c:220
static void CreateBitCase(FILE *Out, unsigned Bpp, PROPINFO RopInfo, int Flags, unsigned SourceBpp)
Definition: gendib.c:506
#define ROPCODE_MERGECOPY
Definition: gendib.c:110
#define ROPCODE_DSTINVERT
Definition: gendib.c:104
static void PrintRoutineName(FILE *Out, unsigned Bpp, PROPINFO RopInfo)
Definition: gendib.c:207
struct _ROPINFO ROPINFO
#define ROPCODE_NOTSRCERASE
Definition: gendib.c:101
#define ROPCODE_BLACKNESS
Definition: gendib.c:100
GLdouble n
Definition: glext.h:7729
_CRTIMP void __cdecl perror(_In_opt_z_ const char *_ErrMsg)
#define stderr
Definition: stdio.h:100
_Check_return_opt_ _CRTIMP int __cdecl fprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format,...)
_Check_return_opt_ _CRTIMP int __cdecl vfprintf(_Inout_ FILE *_File, _In_z_ _Printf_format_string_ const char *_Format, va_list _ArgList)
_Check_return_ _CRTIMP FILE *__cdecl fopen(_In_z_ const char *_Filename, _In_z_ const char *_Mode)
_Check_return_opt_ _CRTIMP int __cdecl putc(_In_ int _Ch, _Inout_ FILE *_File)
_Check_return_opt_ _CRTIMP int __cdecl fclose(_Inout_ FILE *_File)
#define sprintf(buf, format,...)
Definition: sprintf.c:55
int Generate()
Definition: movefile.cpp:81
#define argv
Definition: mplay32.c:18
_In_ UINT _In_ UINT _In_ PNDIS_PACKET Source
Definition: ndis.h:3169
@ Output
Definition: arc.h:85
#define exit(n)
Definition: config.h:202
const char * Name
Definition: gendib.c:122
int UsesPattern
Definition: gendib.c:126
int UsesSource
Definition: gendib.c:125
const char * Operation
Definition: gendib.c:123
int UsesDest
Definition: gendib.c:124
unsigned RopCode
Definition: gendib.c:121
_In_ WDFCOLLECTION _In_ ULONG Index
_Must_inspect_result_ _In_ ULONG Flags
Definition: wsk.h:170
_In_ ULONG Shift
Definition: rtlfuncs.h:2681