292f9317 |
1 | /* |
2 | Copyright (C) 2003 Rice1964 |
3 | |
4 | This program is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU General Public License |
6 | as published by the Free Software Foundation; either version 2 |
7 | 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 |
12 | GNU General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software |
16 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
17 | |
18 | */ |
19 | |
20 | #include "TextureFilters.h" |
21 | |
22 | |
23 | /************************************************************************/ |
24 | /* 2xSAI filters */ |
25 | /************************************************************************/ |
26 | static __inline int SAI_GetResult1_32( uint32 A, uint32 B, uint32 C, uint32 D, uint32 E ) |
27 | { |
28 | int x = 0; |
29 | int y = 0; |
30 | int r = 0; |
31 | |
32 | if (A == C) x += 1; else if (B == C) y += 1; |
33 | if (A == D) x += 1; else if (B == D) y += 1; |
34 | if (x <= 1) r += 1; |
35 | if (y <= 1) r -= 1; |
36 | |
37 | return r; |
38 | } |
39 | |
40 | static __inline uint16 SAI_GetResult1_16( uint16 A, uint16 B, uint16 C, uint16 D, uint16 E ) |
41 | { |
42 | uint16 x = 0; |
43 | uint16 y = 0; |
44 | uint16 r = 0; |
45 | |
46 | if (A == C) x += 1; else if (B == C) y += 1; |
47 | if (A == D) x += 1; else if (B == D) y += 1; |
48 | if (x <= 1) r += 1; |
49 | if (y <= 1 && r>0) r -= 1; |
50 | |
51 | return r; |
52 | } |
53 | |
54 | static __inline int SAI_GetResult2_32( uint32 A, uint32 B, uint32 C, uint32 D, uint32 E) |
55 | { |
56 | int x = 0; |
57 | int y = 0; |
58 | int r = 0; |
59 | |
60 | if (A == C) x += 1; else if (B == C) y += 1; |
61 | if (A == D) x += 1; else if (B == D) y += 1; |
62 | if (x <= 1) r -= 1; |
63 | if (y <= 1) r += 1; |
64 | |
65 | return r; |
66 | } |
67 | |
68 | static __inline uint16 SAI_GetResult2_16( uint16 A, uint16 B, uint16 C, uint16 D, uint16 E) |
69 | { |
70 | uint16 x = 0; |
71 | uint16 y = 0; |
72 | uint16 r = 0; |
73 | |
74 | if (A == C) x += 1; else if (B == C) y += 1; |
75 | if (A == D) x += 1; else if (B == D) y += 1; |
76 | if (x <= 1 && r>0 ) r -= 1; |
77 | if (y <= 1) r += 1; |
78 | |
79 | return r; |
80 | } |
81 | |
82 | |
83 | static __inline int SAI_GetResult_32( uint32 A, uint32 B, uint32 C, uint32 D ) |
84 | { |
85 | int x = 0; |
86 | int y = 0; |
87 | int r = 0; |
88 | |
89 | if (A == C) x += 1; else if (B == C) y += 1; |
90 | if (A == D) x += 1; else if (B == D) y += 1; |
91 | if (x <= 1) r += 1; |
92 | if (y <= 1) r -= 1; |
93 | |
94 | return r; |
95 | } |
96 | |
97 | static __inline uint16 SAI_GetResult_16( uint16 A, uint16 B, uint16 C, uint16 D ) |
98 | { |
99 | uint16 x = 0; |
100 | uint16 y = 0; |
101 | uint16 r = 0; |
102 | |
103 | if (A == C) x += 1; else if (B == C) y += 1; |
104 | if (A == D) x += 1; else if (B == D) y += 1; |
105 | if (x <= 1) r += 1; |
106 | if (y <= 1 && r>0 ) r -= 1; |
107 | |
108 | return r; |
109 | } |
110 | |
111 | |
112 | static __inline uint32 SAI_INTERPOLATE_32( uint32 A, uint32 B) |
113 | { |
114 | if (A != B) |
115 | return ((A & 0xFEFEFEFE) >> 1) + |
116 | (((B & 0xFEFEFEFE) >> 1) | |
117 | (A & B & 0x01010101)); |
118 | else |
119 | return A; |
120 | } |
121 | |
122 | static __inline uint16 SAI_INTERPOLATE_16( uint16 A, uint16 B) |
123 | { |
124 | if (A != B) |
125 | return ((A & 0xFEFE) >> 1) + |
126 | (((B & 0xFEFE) >> 1) | |
127 | (A & B & 0x0101)); |
128 | else |
129 | return A; |
130 | } |
131 | |
132 | |
133 | static __inline uint32 SAI_Q_INTERPOLATE_32( uint32 A, uint32 B, uint32 C, uint32 D) |
134 | { |
135 | uint32 x = ((A & 0xFCFCFCFC) >> 2) + |
136 | ((B & 0xFCFCFCFC) >> 2) + |
137 | ((C & 0xFCFCFCFC) >> 2) + |
138 | ((D & 0xFCFCFCFC) >> 2); |
139 | uint32 y = (((A & 0x03030303) + |
140 | (B & 0x03030303) + |
141 | (C & 0x03030303) + |
142 | (D & 0x03030303)) >> 2) & 0x03030303; |
143 | return x | y; |
144 | } |
145 | |
146 | static __inline uint16 SAI_Q_INTERPOLATE_16( uint16 A, uint16 B, uint16 C, uint16 D) |
147 | { |
148 | uint16 x = ((A & 0xFCFC) >> 2) + |
149 | ((B & 0xFCFC) >> 2) + |
150 | ((C & 0xFCFC) >> 2) + |
151 | ((D & 0xFCFC) >> 2); |
152 | uint16 y = (((A & 0x0303) + |
153 | (B & 0x0303) + |
154 | (C & 0x0303) + |
155 | (D & 0x0303)) >> 2) & 0x0303; |
156 | return x | y; |
157 | } |
158 | |
159 | |
160 | void Super2xSaI_32( uint32 *srcPtr, uint32 *destPtr, uint32 width, uint32 height, uint32 pitch) |
161 | { |
162 | uint32 destWidth = width << 1; |
163 | //uint32 destHeight = height << 1; |
164 | |
165 | uint32 color4, color5, color6; |
166 | uint32 color1, color2, color3; |
167 | uint32 colorA0, colorA1, colorA2, colorA3; |
168 | uint32 colorB0, colorB1, colorB2, colorB3; |
169 | uint32 colorS1, colorS2; |
170 | uint32 product1a, product1b, product2a, product2b; |
171 | |
172 | int row0, row1, row2, row3; |
173 | int col0, col1, col2, col3; |
174 | |
175 | for (uint16 y = 0; y < height; y++) |
176 | { |
177 | if (y > 0) |
178 | { |
179 | row0 = width; |
180 | row0 = -row0; |
181 | } |
182 | else |
183 | row0 = 0; |
184 | |
185 | row1 = 0; |
186 | |
187 | if (y < height - 1) |
188 | { |
189 | row2 = width; |
190 | |
191 | if (y < height - 2) |
192 | row3 = width << 1; |
193 | else |
194 | row3 = width; |
195 | } |
196 | else |
197 | { |
198 | row2 = 0; |
199 | row3 = 0; |
200 | } |
201 | |
202 | for (uint16 x = 0; x < width; x++) |
203 | { |
204 | //--------------------------------------- B0 B1 B2 B3 |
205 | // 4 5 6 S2 |
206 | // 1 2 3 S1 |
207 | // A0 A1 A2 A3 |
208 | if (x > 0) |
209 | col0 = -1; |
210 | else |
211 | col0 = 0; |
212 | |
213 | col1 = 0; |
214 | |
215 | if (x < width - 1) |
216 | { |
217 | col2 = 1; |
218 | |
219 | if (x < width - 2) |
220 | col3 = 2; |
221 | else |
222 | col3 = 1; |
223 | } |
224 | else |
225 | { |
226 | col2 = 0; |
227 | col3 = 0; |
228 | } |
229 | |
230 | colorB0 = *(srcPtr + col0 + row0); |
231 | colorB1 = *(srcPtr + col1 + row0); |
232 | colorB2 = *(srcPtr + col2 + row0); |
233 | colorB3 = *(srcPtr + col3 + row0); |
234 | |
235 | color4 = *(srcPtr + col0 + row1); |
236 | color5 = *(srcPtr + col1 + row1); |
237 | color6 = *(srcPtr + col2 + row1); |
238 | colorS2 = *(srcPtr + col3 + row1); |
239 | |
240 | color1 = *(srcPtr + col0 + row2); |
241 | color2 = *(srcPtr + col1 + row2); |
242 | color3 = *(srcPtr + col2 + row2); |
243 | colorS1 = *(srcPtr + col3 + row2); |
244 | |
245 | colorA0 = *(srcPtr + col0 + row3); |
246 | colorA1 = *(srcPtr + col1 + row3); |
247 | colorA2 = *(srcPtr + col2 + row3); |
248 | colorA3 = *(srcPtr + col3 + row3); |
249 | |
250 | //-------------------------------------- |
251 | if (color2 == color6 && color5 != color3) |
252 | product2b = product1b = color2; |
253 | else if (color5 == color3 && color2 != color6) |
254 | product2b = product1b = color5; |
255 | else if (color5 == color3 && color2 == color6) |
256 | { |
257 | int r = 0; |
258 | |
259 | r += SAI_GetResult_32 (color6, color5, color1, colorA1); |
260 | r += SAI_GetResult_32 (color6, color5, color4, colorB1); |
261 | r += SAI_GetResult_32 (color6, color5, colorA2, colorS1); |
262 | r += SAI_GetResult_32 (color6, color5, colorB2, colorS2); |
263 | |
264 | if (r > 0) |
265 | product2b = product1b = color6; |
266 | else if (r < 0) |
267 | product2b = product1b = color5; |
268 | else |
269 | product2b = product1b = SAI_INTERPOLATE_32 (color5, color6); |
270 | } |
271 | else |
272 | { |
273 | |
274 | if (color6 == color3 && color3 == colorA1 && color2 != colorA2 && color3 != colorA0) |
275 | product2b = SAI_Q_INTERPOLATE_32 (color3, color3, color3, color2); |
276 | else if (color5 == color2 && color2 == colorA2 && colorA1 != color3 && color2 != colorA3) |
277 | product2b = SAI_Q_INTERPOLATE_32 (color2, color2, color2, color3); |
278 | else |
279 | product2b = SAI_INTERPOLATE_32 (color2, color3); |
280 | |
281 | if (color6 == color3 && color6 == colorB1 && color5 != colorB2 && color6 != colorB0) |
282 | product1b = SAI_Q_INTERPOLATE_32 (color6, color6, color6, color5); |
283 | else if (color5 == color2 && color5 == colorB2 && colorB1 != color6 && color5 != colorB3) |
284 | product1b = SAI_Q_INTERPOLATE_32 (color6, color5, color5, color5); |
285 | else |
286 | product1b = SAI_INTERPOLATE_32 (color5, color6); |
287 | } |
288 | |
289 | if (color5 == color3 && color2 != color6 && color4 == color5 && color5 != colorA2) |
290 | product2a = SAI_INTERPOLATE_32 (color2, color5); |
291 | else if (color5 == color1 && color6 == color5 && color4 != color2 && color5 != colorA0) |
292 | product2a = SAI_INTERPOLATE_32(color2, color5); |
293 | else |
294 | product2a = color2; |
295 | |
296 | if (color2 == color6 && color5 != color3 && color1 == color2 && color2 != colorB2) |
297 | product1a = SAI_INTERPOLATE_32 (color2, color5); |
298 | else if (color4 == color2 && color3 == color2 && color1 != color5 && color2 != colorB0) |
299 | product1a = SAI_INTERPOLATE_32(color2, color5); |
300 | else |
301 | product1a = color5; |
302 | |
303 | |
304 | destPtr[0] = product1a; |
305 | destPtr[1] = product1b; |
306 | destPtr[destWidth] = product2a; |
307 | destPtr[destWidth + 1] = product2b; |
308 | |
309 | srcPtr++; |
310 | destPtr += 2; |
311 | } |
312 | srcPtr += (pitch-width); |
313 | destPtr += (((pitch-width)<<1)+(pitch<<1)); |
314 | } |
315 | } |
316 | |
317 | |
318 | void Super2xSaI_16( uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch) |
319 | { |
320 | uint32 destWidth = width << 1; |
321 | //uint32 destHeight = height << 1; |
322 | |
323 | uint16 color4, color5, color6; |
324 | uint16 color1, color2, color3; |
325 | uint16 colorA0, colorA1, colorA2, colorA3; |
326 | uint16 colorB0, colorB1, colorB2, colorB3; |
327 | uint16 colorS1, colorS2; |
328 | uint16 product1a, product1b, product2a, product2b; |
329 | |
330 | int row0, row1, row2, row3; |
331 | int col0, col1, col2, col3; |
332 | |
333 | for (uint16 y = 0; y < height; y++) |
334 | { |
335 | if (y > 0) |
336 | { |
337 | row0 = width; |
338 | row0 = -row0; |
339 | } |
340 | else |
341 | row0 = 0; |
342 | |
343 | row1 = 0; |
344 | |
345 | if (y < height - 1) |
346 | { |
347 | row2 = width; |
348 | |
349 | if (y < height - 2) |
350 | row3 = width << 1; |
351 | else |
352 | row3 = width; |
353 | } |
354 | else |
355 | { |
356 | row2 = 0; |
357 | row3 = 0; |
358 | } |
359 | |
360 | for (uint16 x = 0; x < width; x++) |
361 | { |
362 | //--------------------------------------- B0 B1 B2 B3 |
363 | // 4 5 6 S2 |
364 | // 1 2 3 S1 |
365 | // A0 A1 A2 A3 |
366 | if (x > 0) |
367 | col0 = -1; |
368 | else |
369 | col0 = 0; |
370 | |
371 | col1 = 0; |
372 | |
373 | if (x < width - 1) |
374 | { |
375 | col2 = 1; |
376 | |
377 | if (x < width - 2) |
378 | col3 = 2; |
379 | else |
380 | col3 = 1; |
381 | } |
382 | else |
383 | { |
384 | col2 = 0; |
385 | col3 = 0; |
386 | } |
387 | |
388 | colorB0 = *(srcPtr + col0 + row0); |
389 | colorB1 = *(srcPtr + col1 + row0); |
390 | colorB2 = *(srcPtr + col2 + row0); |
391 | colorB3 = *(srcPtr + col3 + row0); |
392 | |
393 | color4 = *(srcPtr + col0 + row1); |
394 | color5 = *(srcPtr + col1 + row1); |
395 | color6 = *(srcPtr + col2 + row1); |
396 | colorS2 = *(srcPtr + col3 + row1); |
397 | |
398 | color1 = *(srcPtr + col0 + row2); |
399 | color2 = *(srcPtr + col1 + row2); |
400 | color3 = *(srcPtr + col2 + row2); |
401 | colorS1 = *(srcPtr + col3 + row2); |
402 | |
403 | colorA0 = *(srcPtr + col0 + row3); |
404 | colorA1 = *(srcPtr + col1 + row3); |
405 | colorA2 = *(srcPtr + col2 + row3); |
406 | colorA3 = *(srcPtr + col3 + row3); |
407 | |
408 | //-------------------------------------- |
409 | if (color2 == color6 && color5 != color3) |
410 | product2b = product1b = color2; |
411 | else if (color5 == color3 && color2 != color6) |
412 | product2b = product1b = color5; |
413 | else if (color5 == color3 && color2 == color6) |
414 | { |
415 | int r = 0; |
416 | |
417 | r += SAI_GetResult_16 (color6, color5, color1, colorA1); |
418 | r += SAI_GetResult_16 (color6, color5, color4, colorB1); |
419 | r += SAI_GetResult_16 (color6, color5, colorA2, colorS1); |
420 | r += SAI_GetResult_16 (color6, color5, colorB2, colorS2); |
421 | |
422 | if (r > 0) |
423 | product2b = product1b = color6; |
424 | else if (r < 0) |
425 | product2b = product1b = color5; |
426 | else |
427 | product2b = product1b = SAI_INTERPOLATE_16 (color5, color6); |
428 | } |
429 | else |
430 | { |
431 | |
432 | if (color6 == color3 && color3 == colorA1 && color2 != colorA2 && color3 != colorA0) |
433 | product2b = SAI_Q_INTERPOLATE_16 (color3, color3, color3, color2); |
434 | else if (color5 == color2 && color2 == colorA2 && colorA1 != color3 && color2 != colorA3) |
435 | product2b = SAI_Q_INTERPOLATE_16 (color2, color2, color2, color3); |
436 | else |
437 | product2b = SAI_INTERPOLATE_16 (color2, color3); |
438 | |
439 | if (color6 == color3 && color6 == colorB1 && color5 != colorB2 && color6 != colorB0) |
440 | product1b = SAI_Q_INTERPOLATE_16 (color6, color6, color6, color5); |
441 | else if (color5 == color2 && color5 == colorB2 && colorB1 != color6 && color5 != colorB3) |
442 | product1b = SAI_Q_INTERPOLATE_16 (color6, color5, color5, color5); |
443 | else |
444 | product1b = SAI_INTERPOLATE_16 (color5, color6); |
445 | } |
446 | |
447 | if (color5 == color3 && color2 != color6 && color4 == color5 && color5 != colorA2) |
448 | product2a = SAI_INTERPOLATE_16 (color2, color5); |
449 | else if (color5 == color1 && color6 == color5 && color4 != color2 && color5 != colorA0) |
450 | product2a = SAI_INTERPOLATE_16(color2, color5); |
451 | else |
452 | product2a = color2; |
453 | |
454 | if (color2 == color6 && color5 != color3 && color1 == color2 && color2 != colorB2) |
455 | product1a = SAI_INTERPOLATE_16 (color2, color5); |
456 | else if (color4 == color2 && color3 == color2 && color1 != color5 && color2 != colorB0) |
457 | product1a = SAI_INTERPOLATE_16(color2, color5); |
458 | else |
459 | product1a = color5; |
460 | |
461 | |
462 | destPtr[0] = product1a; |
463 | destPtr[1] = product1b; |
464 | destPtr[destWidth] = product2a; |
465 | destPtr[destWidth + 1] = product2b; |
466 | |
467 | srcPtr++; |
468 | destPtr += 2; |
469 | } |
470 | srcPtr += (pitch-width); |
471 | destPtr += (((pitch-width)<<1)+(pitch<<1)); |
472 | } |
473 | } |
474 | |