notaz.gp2x.de / mupen64plus-pandora.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Rice Video Plugin for GLES1.1
[mupen64plus-pandora.git] / source / rice_gles / src / TextureFilters_2xsai.cpp
CommitLineData
d07c171f 1/*
2Copyright (C) 2003 Rice1964
3
4This program is free software; you can redistribute it and/or
5modify it under the terms of the GNU General Public License
6as published by the Free Software Foundation; either version 2
7of the License, or (at your option) any later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program; if not, write to the Free Software
16Foundation, 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/************************************************************************/
26static __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
40static __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
54static __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
68static __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
83static __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
97static __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
112static __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
122static __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
133static __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
146static __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
160void 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
318void 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
Unnamed repository; edit this file 'description' to name the repository.