2 Copyright (C) 2003 Rice1964
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.
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.
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.
20 #include "TextureFilters.h"
23 /************************************************************************/
25 /************************************************************************/
26 static __inline int SAI_GetResult1_32( uint32 A, uint32 B, uint32 C, uint32 D, uint32 E )
32 if (A == C) x += 1; else if (B == C) y += 1;
33 if (A == D) x += 1; else if (B == D) y += 1;
40 static __inline uint16 SAI_GetResult1_16( uint16 A, uint16 B, uint16 C, uint16 D, uint16 E )
46 if (A == C) x += 1; else if (B == C) y += 1;
47 if (A == D) x += 1; else if (B == D) y += 1;
49 if (y <= 1 && r>0) r -= 1;
54 static __inline int SAI_GetResult2_32( uint32 A, uint32 B, uint32 C, uint32 D, uint32 E)
60 if (A == C) x += 1; else if (B == C) y += 1;
61 if (A == D) x += 1; else if (B == D) y += 1;
68 static __inline uint16 SAI_GetResult2_16( uint16 A, uint16 B, uint16 C, uint16 D, uint16 E)
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;
83 static __inline int SAI_GetResult_32( uint32 A, uint32 B, uint32 C, uint32 D )
89 if (A == C) x += 1; else if (B == C) y += 1;
90 if (A == D) x += 1; else if (B == D) y += 1;
97 static __inline uint16 SAI_GetResult_16( uint16 A, uint16 B, uint16 C, uint16 D )
103 if (A == C) x += 1; else if (B == C) y += 1;
104 if (A == D) x += 1; else if (B == D) y += 1;
106 if (y <= 1 && r>0 ) r -= 1;
112 static __inline uint32 SAI_INTERPOLATE_32( uint32 A, uint32 B)
115 return ((A & 0xFEFEFEFE) >> 1) +
116 (((B & 0xFEFEFEFE) >> 1) |
117 (A & B & 0x01010101));
122 static __inline uint16 SAI_INTERPOLATE_16( uint16 A, uint16 B)
125 return ((A & 0xFEFE) >> 1) +
126 (((B & 0xFEFE) >> 1) |
133 static __inline uint32 SAI_Q_INTERPOLATE_32( uint32 A, uint32 B, uint32 C, uint32 D)
135 uint32 x = ((A & 0xFCFCFCFC) >> 2) +
136 ((B & 0xFCFCFCFC) >> 2) +
137 ((C & 0xFCFCFCFC) >> 2) +
138 ((D & 0xFCFCFCFC) >> 2);
139 uint32 y = (((A & 0x03030303) +
142 (D & 0x03030303)) >> 2) & 0x03030303;
146 static __inline uint16 SAI_Q_INTERPOLATE_16( uint16 A, uint16 B, uint16 C, uint16 D)
148 uint16 x = ((A & 0xFCFC) >> 2) +
149 ((B & 0xFCFC) >> 2) +
150 ((C & 0xFCFC) >> 2) +
152 uint16 y = (((A & 0x0303) +
155 (D & 0x0303)) >> 2) & 0x0303;
160 void Super2xSaI_32( uint32 *srcPtr, uint32 *destPtr, uint32 width, uint32 height, uint32 pitch)
162 uint32 destWidth = width << 1;
163 //uint32 destHeight = height << 1;
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;
172 int row0, row1, row2, row3;
173 int col0, col1, col2, col3;
175 for (uint16 y = 0; y < height; y++)
202 for (uint16 x = 0; x < width; x++)
204 //--------------------------------------- B0 B1 B2 B3
230 colorB0 = *(srcPtr + col0 + row0);
231 colorB1 = *(srcPtr + col1 + row0);
232 colorB2 = *(srcPtr + col2 + row0);
233 colorB3 = *(srcPtr + col3 + row0);
235 color4 = *(srcPtr + col0 + row1);
236 color5 = *(srcPtr + col1 + row1);
237 color6 = *(srcPtr + col2 + row1);
238 colorS2 = *(srcPtr + col3 + row1);
240 color1 = *(srcPtr + col0 + row2);
241 color2 = *(srcPtr + col1 + row2);
242 color3 = *(srcPtr + col2 + row2);
243 colorS1 = *(srcPtr + col3 + row2);
245 colorA0 = *(srcPtr + col0 + row3);
246 colorA1 = *(srcPtr + col1 + row3);
247 colorA2 = *(srcPtr + col2 + row3);
248 colorA3 = *(srcPtr + col3 + row3);
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)
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);
265 product2b = product1b = color6;
267 product2b = product1b = color5;
269 product2b = product1b = SAI_INTERPOLATE_32 (color5, color6);
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);
279 product2b = SAI_INTERPOLATE_32 (color2, color3);
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);
286 product1b = SAI_INTERPOLATE_32 (color5, color6);
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);
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);
304 destPtr[0] = product1a;
305 destPtr[1] = product1b;
306 destPtr[destWidth] = product2a;
307 destPtr[destWidth + 1] = product2b;
312 srcPtr += (pitch-width);
313 destPtr += (((pitch-width)<<1)+(pitch<<1));
318 void Super2xSaI_16( uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
320 uint32 destWidth = width << 1;
321 //uint32 destHeight = height << 1;
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;
330 int row0, row1, row2, row3;
331 int col0, col1, col2, col3;
333 for (uint16 y = 0; y < height; y++)
360 for (uint16 x = 0; x < width; x++)
362 //--------------------------------------- B0 B1 B2 B3
388 colorB0 = *(srcPtr + col0 + row0);
389 colorB1 = *(srcPtr + col1 + row0);
390 colorB2 = *(srcPtr + col2 + row0);
391 colorB3 = *(srcPtr + col3 + row0);
393 color4 = *(srcPtr + col0 + row1);
394 color5 = *(srcPtr + col1 + row1);
395 color6 = *(srcPtr + col2 + row1);
396 colorS2 = *(srcPtr + col3 + row1);
398 color1 = *(srcPtr + col0 + row2);
399 color2 = *(srcPtr + col1 + row2);
400 color3 = *(srcPtr + col2 + row2);
401 colorS1 = *(srcPtr + col3 + row2);
403 colorA0 = *(srcPtr + col0 + row3);
404 colorA1 = *(srcPtr + col1 + row3);
405 colorA2 = *(srcPtr + col2 + row3);
406 colorA3 = *(srcPtr + col3 + row3);
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)
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);
423 product2b = product1b = color6;
425 product2b = product1b = color5;
427 product2b = product1b = SAI_INTERPOLATE_16 (color5, color6);
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);
437 product2b = SAI_INTERPOLATE_16 (color2, color3);
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);
444 product1b = SAI_INTERPOLATE_16 (color5, color6);
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);
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);
462 destPtr[0] = product1a;
463 destPtr[1] = product1b;
464 destPtr[destWidth] = product2a;
465 destPtr[destWidth + 1] = product2b;
470 srcPtr += (pitch-width);
471 destPtr += (((pitch-width)<<1)+(pitch<<1));