| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
2 // All rights reserved.
3 // This component and the accompanying materials are made available
4 // under the terms of "Eclipse Public License v1.0"
5 // which accompanies this distribution, and is available
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
7 //
8 // Initial Contributors:
9 // Nokia Corporation - initial contribution.
10 //
11 // Contributors:
12 //
13 // Description:
14 //
16 #include "lookuptable.h"
18 /**
19 @internalComponent
20 */
21 // Lookup table low word for converting from 16bpp to 32bpp display modes
22 const TUint16 KBlt16to32Low[256] =
23 {
24 0x0000,
25 0x0008,
26 0x0010,
27 0x0018,
28 0x0021,
29 0x0029,
30 0x0031,
31 0x0039,
32 0x0042,
33 0x004a,
34 0x0052,
35 0x005a,
36 0x0063,
37 0x006b,
38 0x0073,
39 0x007b,
40 0x0084,
41 0x008c,
42 0x0094,
43 0x009c,
44 0x00a5,
45 0x00ad,
46 0x00b5,
47 0x00bd,
48 0x00c6,
49 0x00ce,
50 0x00d6,
51 0x00de,
52 0x00e7,
53 0x00ef,
54 0x00f7,
55 0x00ff,
56 0x0400,
57 0x0408,
58 0x0410,
59 0x0418,
60 0x0421,
61 0x0429,
62 0x0431,
63 0x0439,
64 0x0442,
65 0x044a,
66 0x0452,
67 0x045a,
68 0x0463,
69 0x046b,
70 0x0473,
71 0x047b,
72 0x0484,
73 0x048c,
74 0x0494,
75 0x049c,
76 0x04a5,
77 0x04ad,
78 0x04b5,
79 0x04bd,
80 0x04c6,
81 0x04ce,
82 0x04d6,
83 0x04de,
84 0x04e7,
85 0x04ef,
86 0x04f7,
87 0x04ff,
88 0x0800,
89 0x0808,
90 0x0810,
91 0x0818,
92 0x0821,
93 0x0829,
94 0x0831,
95 0x0839,
96 0x0842,
97 0x084a,
98 0x0852,
99 0x085a,
100 0x0863,
101 0x086b,
102 0x0873,
103 0x087b,
104 0x0884,
105 0x088c,
106 0x0894,
107 0x089c,
108 0x08a5,
109 0x08ad,
110 0x08b5,
111 0x08bd,
112 0x08c6,
113 0x08ce,
114 0x08d6,
115 0x08de,
116 0x08e7,
117 0x08ef,
118 0x08f7,
119 0x08ff,
120 0x0c00,
121 0x0c08,
122 0x0c10,
123 0x0c18,
124 0x0c21,
125 0x0c29,
126 0x0c31,
127 0x0c39,
128 0x0c42,
129 0x0c4a,
130 0x0c52,
131 0x0c5a,
132 0x0c63,
133 0x0c6b,
134 0x0c73,
135 0x0c7b,
136 0x0c84,
137 0x0c8c,
138 0x0c94,
139 0x0c9c,
140 0x0ca5,
141 0x0cad,
142 0x0cb5,
143 0x0cbd,
144 0x0cc6,
145 0x0cce,
146 0x0cd6,
147 0x0cde,
148 0x0ce7,
149 0x0cef,
150 0x0cf7,
151 0x0cff,
152 0x1000,
153 0x1008,
154 0x1010,
155 0x1018,
156 0x1021,
157 0x1029,
158 0x1031,
159 0x1039,
160 0x1042,
161 0x104a,
162 0x1052,
163 0x105a,
164 0x1063,
165 0x106b,
166 0x1073,
167 0x107b,
168 0x1084,
169 0x108c,
170 0x1094,
171 0x109c,
172 0x10a5,
173 0x10ad,
174 0x10b5,
175 0x10bd,
176 0x10c6,
177 0x10ce,
178 0x10d6,
179 0x10de,
180 0x10e7,
181 0x10ef,
182 0x10f7,
183 0x10ff,
184 0x1400,
185 0x1408,
186 0x1410,
187 0x1418,
188 0x1421,
189 0x1429,
190 0x1431,
191 0x1439,
192 0x1442,
193 0x144a,
194 0x1452,
195 0x145a,
196 0x1463,
197 0x146b,
198 0x1473,
199 0x147b,
200 0x1484,
201 0x148c,
202 0x1494,
203 0x149c,
204 0x14a5,
205 0x14ad,
206 0x14b5,
207 0x14bd,
208 0x14c6,
209 0x14ce,
210 0x14d6,
211 0x14de,
212 0x14e7,
213 0x14ef,
214 0x14f7,
215 0x14ff,
216 0x1800,
217 0x1808,
218 0x1810,
219 0x1818,
220 0x1821,
221 0x1829,
222 0x1831,
223 0x1839,
224 0x1842,
225 0x184a,
226 0x1852,
227 0x185a,
228 0x1863,
229 0x186b,
230 0x1873,
231 0x187b,
232 0x1884,
233 0x188c,
234 0x1894,
235 0x189c,
236 0x18a5,
237 0x18ad,
238 0x18b5,
239 0x18bd,
240 0x18c6,
241 0x18ce,
242 0x18d6,
243 0x18de,
244 0x18e7,
245 0x18ef,
246 0x18f7,
247 0x18ff,
248 0x1c00,
249 0x1c08,
250 0x1c10,
251 0x1c18,
252 0x1c21,
253 0x1c29,
254 0x1c31,
255 0x1c39,
256 0x1c42,
257 0x1c4a,
258 0x1c52,
259 0x1c5a,
260 0x1c63,
261 0x1c6b,
262 0x1c73,
263 0x1c7b,
264 0x1c84,
265 0x1c8c,
266 0x1c94,
267 0x1c9c,
268 0x1ca5,
269 0x1cad,
270 0x1cb5,
271 0x1cbd,
272 0x1cc6,
273 0x1cce,
274 0x1cd6,
275 0x1cde,
276 0x1ce7,
277 0x1cef,
278 0x1cf7,
279 0x1cff
280 };
282 /**
283 @internalComponent
284 */
285 // Lookup table high long word for converting from 16bpp to 32bpp display modes
286 const TUint32 KBlt16to32High[256] =
287 {
288 0xff000000,
289 0xff002000,
290 0xff004100,
291 0xff006100,
292 0xff008200,
293 0xff00a200,
294 0xff00c300,
295 0xff00e300,
296 0xff080000,
297 0xff082000,
298 0xff084100,
299 0xff086100,
300 0xff088200,
301 0xff08a200,
302 0xff08c300,
303 0xff08e300,
304 0xff100000,
305 0xff102000,
306 0xff104100,
307 0xff106100,
308 0xff108200,
309 0xff10a200,
310 0xff10c300,
311 0xff10e300,
312 0xff180000,
313 0xff182000,
314 0xff184100,
315 0xff186100,
316 0xff188200,
317 0xff18a200,
318 0xff18c300,
319 0xff18e300,
320 0xff210000,
321 0xff212000,
322 0xff214100,
323 0xff216100,
324 0xff218200,
325 0xff21a200,
326 0xff21c300,
327 0xff21e300,
328 0xff290000,
329 0xff292000,
330 0xff294100,
331 0xff296100,
332 0xff298200,
333 0xff29a200,
334 0xff29c300,
335 0xff29e300,
336 0xff310000,
337 0xff312000,
338 0xff314100,
339 0xff316100,
340 0xff318200,
341 0xff31a200,
342 0xff31c300,
343 0xff31e300,
344 0xff390000,
345 0xff392000,
346 0xff394100,
347 0xff396100,
348 0xff398200,
349 0xff39a200,
350 0xff39c300,
351 0xff39e300,
352 0xff420000,
353 0xff422000,
354 0xff424100,
355 0xff426100,
356 0xff428200,
357 0xff42a200,
358 0xff42c300,
359 0xff42e300,
360 0xff4a0000,
361 0xff4a2000,
362 0xff4a4100,
363 0xff4a6100,
364 0xff4a8200,
365 0xff4aa200,
366 0xff4ac300,
367 0xff4ae300,
368 0xff520000,
369 0xff522000,
370 0xff524100,
371 0xff526100,
372 0xff528200,
373 0xff52a200,
374 0xff52c300,
375 0xff52e300,
376 0xff5a0000,
377 0xff5a2000,
378 0xff5a4100,
379 0xff5a6100,
380 0xff5a8200,
381 0xff5aa200,
382 0xff5ac300,
383 0xff5ae300,
384 0xff630000,
385 0xff632000,
386 0xff634100,
387 0xff636100,
388 0xff638200,
389 0xff63a200,
390 0xff63c300,
391 0xff63e300,
392 0xff6b0000,
393 0xff6b2000,
394 0xff6b4100,
395 0xff6b6100,
396 0xff6b8200,
397 0xff6ba200,
398 0xff6bc300,
399 0xff6be300,
400 0xff730000,
401 0xff732000,
402 0xff734100,
403 0xff736100,
404 0xff738200,
405 0xff73a200,
406 0xff73c300,
407 0xff73e300,
408 0xff7b0000,
409 0xff7b2000,
410 0xff7b4100,
411 0xff7b6100,
412 0xff7b8200,
413 0xff7ba200,
414 0xff7bc300,
415 0xff7be300,
416 0xff840000,
417 0xff842000,
418 0xff844100,
419 0xff846100,
420 0xff848200,
421 0xff84a200,
422 0xff84c300,
423 0xff84e300,
424 0xff8c0000,
425 0xff8c2000,
426 0xff8c4100,
427 0xff8c6100,
428 0xff8c8200,
429 0xff8ca200,
430 0xff8cc300,
431 0xff8ce300,
432 0xff940000,
433 0xff942000,
434 0xff944100,
435 0xff946100,
436 0xff948200,
437 0xff94a200,
438 0xff94c300,
439 0xff94e300,
440 0xff9c0000,
441 0xff9c2000,
442 0xff9c4100,
443 0xff9c6100,
444 0xff9c8200,
445 0xff9ca200,
446 0xff9cc300,
447 0xff9ce300,
448 0xffa50000,
449 0xffa52000,
450 0xffa54100,
451 0xffa56100,
452 0xffa58200,
453 0xffa5a200,
454 0xffa5c300,
455 0xffa5e300,
456 0xffad0000,
457 0xffad2000,
458 0xffad4100,
459 0xffad6100,
460 0xffad8200,
461 0xffada200,
462 0xffadc300,
463 0xffade300,
464 0xffb50000,
465 0xffb52000,
466 0xffb54100,
467 0xffb56100,
468 0xffb58200,
469 0xffb5a200,
470 0xffb5c300,
471 0xffb5e300,
472 0xffbd0000,
473 0xffbd2000,
474 0xffbd4100,
475 0xffbd6100,
476 0xffbd8200,
477 0xffbda200,
478 0xffbdc300,
479 0xffbde300,
480 0xffc60000,
481 0xffc62000,
482 0xffc64100,
483 0xffc66100,
484 0xffc68200,
485 0xffc6a200,
486 0xffc6c300,
487 0xffc6e300,
488 0xffce0000,
489 0xffce2000,
490 0xffce4100,
491 0xffce6100,
492 0xffce8200,
493 0xffcea200,
494 0xffcec300,
495 0xffcee300,
496 0xffd60000,
497 0xffd62000,
498 0xffd64100,
499 0xffd66100,
500 0xffd68200,
501 0xffd6a200,
502 0xffd6c300,
503 0xffd6e300,
504 0xffde0000,
505 0xffde2000,
506 0xffde4100,
507 0xffde6100,
508 0xffde8200,
509 0xffdea200,
510 0xffdec300,
511 0xffdee300,
512 0xffe70000,
513 0xffe72000,
514 0xffe74100,
515 0xffe76100,
516 0xffe78200,
517 0xffe7a200,
518 0xffe7c300,
519 0xffe7e300,
520 0xffef0000,
521 0xffef2000,
522 0xffef4100,
523 0xffef6100,
524 0xffef8200,
525 0xffefa200,
526 0xffefc300,
527 0xffefe300,
528 0xfff70000,
529 0xfff72000,
530 0xfff74100,
531 0xfff76100,
532 0xfff78200,
533 0xfff7a200,
534 0xfff7c300,
535 0xfff7e300,
536 0xffff0000,
537 0xffff2000,
538 0xffff4100,
539 0xffff6100,
540 0xffff8200,
541 0xffffa200,
542 0xffffc300,
543 0xffffe300
544 };
547 const TUint16 NormalisationTable16Bit[256] = {
548 0,65280,32640,21760,16320,13056,10880,9326,8160,7254,6528,
549 5935,5440,5022,4663,4352,4080,3840,3627,3436,3264,
550 3109,2968,2839,2720,2612,2511,2418,2332,2252,2176,
551 2106,2040,1979,1920,1866,1814,1765,1718,1674,1632,
552 1593,1555,1519,1484,1451,1420,1389,1360,1333,1306,
553 1280,1256,1232,1209,1187,1166,1146,1126,1107,1088,
554 1071,1053,1037,1020,1005,990,975,960,947,933,
555 920,907,895,883,871,859,848,837,827,816,
556 806,797,787,778,768,760,751,742,734,726,
557 718,710,702,695,688,680,673,667,660,653,
558 647,640,634,628,622,616,611,605,599,594,
559 589,583,578,573,568,563,558,554,549,544,
560 540,536,531,527,523,519,515,510,507,503,
561 499,495,491,488,484,480,477,474,470,467,
562 463,460,457,454,451,448,445,442,439,436,
563 433,430,427,424,422,419,416,414,411,408,
564 406,403,401,399,396,394,391,389,387,384,
565 382,380,378,376,374,371,369,367,365,363,
566 361,359,357,355,353,351,350,348,346,344,
567 342,340,339,337,335,334,332,330,329,327,
568 325,324,322,320,319,317,316,314,313,311,
569 310,308,307,306,304,303,301,300,299,297,
570 296,295,293,292,291,289,288,287,286,284,
571 283,282,281,279,278,277,276,275,274,272,
572 271,270,269,268,267,266,265,264,263,262,
573 261,260,259,258,256,
574 };
577 /**
578 This function will return value of converted 16bpp to 32bpp display modes. This lookup table is
579 used to improve performance.
580 @internalComponent
581 */
583 EXPORT_C const TUint16* Convert16to32bppLow()
584 {
585 return KBlt16to32Low;
586 }
588 EXPORT_C const TUint32* Convert16to32bppHigh()
589 {
590 return KBlt16to32High;
591 }
593 /**
594 Returns the pointer to the table of 16-bit normalisation table.
595 The table is currently used for performing un-multiplying Premultiplied Alpha color channels.
596 This lookup table for normalised alpha is compluted using this equation: Table[index] = (255*256) / index (where index is an 8 bit value)
597 Use: Let x be c * a/255, and y = c, then y = (x/a)*255, where a is in 0-255 range.
598 To use this table, use y = (x * Table[a])>>8. i.e, the inaccurate division is converted
599 to more accurate multiplication and shift.
601 @return pointer to the normalisation table.
602 @internalTechnology
603 */
604 EXPORT_C const TUint16* PtrTo16BitNormalisationTable()
605 {
606 return &NormalisationTable16Bit[0];
607 }