Mercurial > vba-clojure
comparison src/filters/interframe.cpp @ 27:b970226568d2
brought in filters package
author | Robert McIntyre <rlm@mit.edu> |
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date | Sun, 04 Mar 2012 20:32:31 -0600 |
parents | f9f4f1b99eed |
children |
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26:18eaae41bde3 | 27:b970226568d2 |
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1 #include <cstdlib> | |
2 #include <cstring> | |
3 #include "../Port.h" | |
4 | |
5 #ifdef MMX | |
6 extern "C" bool cpu_mmx; | |
7 #endif | |
8 | |
9 /* | |
10 * Thanks to Kawaks' Mr. K for the code | |
11 | |
12 Incorporated into vba by Anthony Di Franco | |
13 */ | |
14 | |
15 static u8 *frm1 = NULL; | |
16 static u8 *frm2 = NULL; | |
17 static u8 *frm3 = NULL; | |
18 | |
19 extern u32 RGB_LOW_BITS_MASK; | |
20 extern u32 qRGB_COLOR_MASK[2]; | |
21 | |
22 static void Init() | |
23 { | |
24 frm1 = (u8 *)calloc(322 * 242, 4); | |
25 // 1 frame ago | |
26 frm2 = (u8 *)calloc(322 * 242, 4); | |
27 // 2 frames ago | |
28 frm3 = (u8 *)calloc(322 * 242, 4); | |
29 // 3 frames ago | |
30 } | |
31 | |
32 void InterframeCleanup() | |
33 { | |
34 if (frm1) | |
35 free(frm1); | |
36 if (frm2) | |
37 free(frm2); | |
38 if (frm3) | |
39 free(frm3); | |
40 frm1 = frm2 = frm3 = NULL; | |
41 } | |
42 | |
43 #ifdef MMX | |
44 static void SmartIB_MMX(u8 *srcPtr, u32 srcPitch, int width, int height) | |
45 { | |
46 u16 *src0 = (u16 *)srcPtr; | |
47 u16 *src1 = (u16 *)frm1; | |
48 u16 *src2 = (u16 *)frm2; | |
49 u16 *src3 = (u16 *)frm3; | |
50 | |
51 int count = width >> 2; | |
52 | |
53 for (int i = 0; i < height; i++) | |
54 { | |
55 #ifdef __GNUC__ | |
56 asm volatile ( | |
57 "push %4\n" | |
58 "movq 0(%5), %%mm7\n" // colorMask | |
59 "0:\n" | |
60 "movq 0(%0), %%mm0\n" // src0 | |
61 "movq 0(%1), %%mm1\n" // src1 | |
62 "movq 0(%2), %%mm2\n" // src2 | |
63 "movq 0(%3), %%mm3\n" // src3 | |
64 "movq %%mm0, 0(%3)\n" // src3 = src0 | |
65 "movq %%mm0, %%mm4\n" | |
66 "movq %%mm1, %%mm5\n" | |
67 "pcmpeqw %%mm2, %%mm5\n" // src1 == src2 (A) | |
68 "pcmpeqw %%mm3, %%mm4\n" // src3 == src0 (B) | |
69 "por %%mm5, %%mm4\n" // A | B | |
70 "movq %%mm2, %%mm5\n" | |
71 "pcmpeqw %%mm0, %%mm5\n" // src0 == src2 (C) | |
72 "pcmpeqw %%mm1, %%mm3\n" // src1 == src3 (D) | |
73 "por %%mm3, %%mm5\n" // C|D | |
74 "pandn %%mm5, %%mm4\n" // (!(A|B))&(C|D) | |
75 "movq %%mm0, %%mm2\n" | |
76 "pand %%mm7, %%mm2\n" // color & colorMask | |
77 "pand %%mm7, %%mm1\n" // src1 & colorMask | |
78 "psrlw $1, %%mm2\n" // (color & colorMask) >> 1 (E) | |
79 "psrlw $1, %%mm1\n" // (src & colorMask) >> 1 (F) | |
80 "paddw %%mm2, %%mm1\n" // E+F | |
81 "pand %%mm4, %%mm1\n" // (E+F) & res | |
82 "pandn %%mm0, %%mm4\n" // color& !res | |
83 | |
84 "por %%mm1, %%mm4\n" | |
85 "movq %%mm4, 0(%0)\n" // src0 = res | |
86 | |
87 "addl $8, %0\n" | |
88 "addl $8, %1\n" | |
89 "addl $8, %2\n" | |
90 "addl $8, %3\n" | |
91 | |
92 "decl %4\n" | |
93 "jnz 0b\n" | |
94 "pop %4\n" | |
95 "emms\n" | |
96 : "+r" (src0), "+r" (src1), "+r" (src2), "+r" (src3) | |
97 : "r" (count), "r" (qRGB_COLOR_MASK) | |
98 ); | |
99 #else | |
100 __asm { | |
101 movq mm7, qword ptr [qRGB_COLOR_MASK]; | |
102 mov eax, src0; | |
103 mov ebx, src1; | |
104 mov ecx, src2; | |
105 mov edx, src3; | |
106 mov edi, count; | |
107 label0: | |
108 movq mm0, qword ptr [eax]; // src0 | |
109 movq mm1, qword ptr [ebx]; // src1 | |
110 movq mm2, qword ptr [ecx]; // src2 | |
111 movq mm3, qword ptr [edx]; // src3 | |
112 movq qword ptr [edx], mm0; // src3 = src0 | |
113 movq mm4, mm0; | |
114 movq mm5, mm1; | |
115 pcmpeqw mm5, mm2; // src1 == src2 (A) | |
116 pcmpeqw mm4, mm3; // src3 == src0 (B) | |
117 por mm4, mm5; // A | B | |
118 movq mm5, mm2; | |
119 pcmpeqw mm5, mm0; // src0 == src2 (C) | |
120 pcmpeqw mm3, mm1; // src1 == src3 (D) | |
121 por mm5, mm3; // C|D | |
122 pandn mm4, mm5; // (!(A|B))&(C|D) | |
123 movq mm2, mm0; | |
124 pand mm2, mm7; // color & colorMask | |
125 pand mm1, mm7; // src1 & colorMask | |
126 psrlw mm2, 1; // (color & colorMask) >> 1 (E) | |
127 psrlw mm1, 1; // (src & colorMask) >> 1 (F) | |
128 paddw mm1, mm2; // E+F | |
129 pand mm1, mm4; // (E+F) & res | |
130 pandn mm4, mm0; // color & !res | |
131 | |
132 por mm4, mm1; | |
133 movq qword ptr [eax], mm4; // src0 = res | |
134 | |
135 add eax, 8; | |
136 add ebx, 8; | |
137 add ecx, 8; | |
138 add edx, 8; | |
139 | |
140 dec edi; | |
141 jnz label0; | |
142 mov src0, eax; | |
143 mov src1, ebx; | |
144 mov src2, ecx; | |
145 mov src3, edx; | |
146 emms; | |
147 } | |
148 #endif | |
149 src0 += 2; | |
150 src1 += 2; | |
151 src2 += 2; | |
152 src3 += 2; | |
153 } | |
154 | |
155 /* Swap buffers around */ | |
156 u8 *temp = frm1; | |
157 frm1 = frm3; | |
158 frm3 = frm2; | |
159 frm2 = temp; | |
160 } | |
161 | |
162 #endif | |
163 | |
164 void SmartIB(u8 *srcPtr, u32 srcPitch, int width, int height) | |
165 { | |
166 if (frm1 == NULL) | |
167 { | |
168 Init(); | |
169 } | |
170 #ifdef MMX | |
171 if (cpu_mmx) | |
172 { | |
173 SmartIB_MMX(srcPtr, srcPitch, width, height); | |
174 return; | |
175 } | |
176 #endif | |
177 | |
178 u16 colorMask = ~RGB_LOW_BITS_MASK; | |
179 | |
180 u16 *src0 = (u16 *)srcPtr; | |
181 u16 *src1 = (u16 *)frm1; | |
182 u16 *src2 = (u16 *)frm2; | |
183 u16 *src3 = (u16 *)frm3; | |
184 | |
185 int sPitch = srcPitch >> 1; | |
186 | |
187 int pos = 0; | |
188 for (int j = 0; j < height; j++) | |
189 for (int i = 0; i < sPitch; i++) | |
190 { | |
191 u16 color = src0[pos]; | |
192 src0[pos] = | |
193 (src1[pos] != src2[pos]) && | |
194 (src3[pos] != color) && | |
195 ((color == src2[pos]) || (src1[pos] == src3[pos])) | |
196 ? (((color & colorMask) >> 1) + ((src1[pos] & colorMask) >> 1)) : | |
197 color; | |
198 src3[pos] = color; /* oldest buffer now holds newest frame */ | |
199 pos++; | |
200 } | |
201 | |
202 /* Swap buffers around */ | |
203 u8 *temp = frm1; | |
204 frm1 = frm3; | |
205 frm3 = frm2; | |
206 frm2 = temp; | |
207 } | |
208 | |
209 #ifdef MMX | |
210 static void SmartIB32_MMX(u8 *srcPtr, u32 srcPitch, int width, int height) | |
211 { | |
212 u32 *src0 = (u32 *)srcPtr; | |
213 u32 *src1 = (u32 *)frm1; | |
214 u32 *src2 = (u32 *)frm2; | |
215 u32 *src3 = (u32 *)frm3; | |
216 | |
217 int count = width >> 1; | |
218 | |
219 for (int i = 0; i < height; i++) | |
220 { | |
221 #ifdef __GNUC__ | |
222 asm volatile ( | |
223 "push %4\n" | |
224 "movq 0(%5), %%mm7\n" // colorMask | |
225 "0:\n" | |
226 "movq 0(%0), %%mm0\n" // src0 | |
227 "movq 0(%1), %%mm1\n" // src1 | |
228 "movq 0(%2), %%mm2\n" // src2 | |
229 "movq 0(%3), %%mm3\n" // src3 | |
230 "movq %%mm0, 0(%3)\n" // src3 = src0 | |
231 "movq %%mm0, %%mm4\n" | |
232 "movq %%mm1, %%mm5\n" | |
233 "pcmpeqd %%mm2, %%mm5\n" // src1 == src2 (A) | |
234 "pcmpeqd %%mm3, %%mm4\n" // src3 == src0 (B) | |
235 "por %%mm5, %%mm4\n" // A | B | |
236 "movq %%mm2, %%mm5\n" | |
237 "pcmpeqd %%mm0, %%mm5\n" // src0 == src2 (C) | |
238 "pcmpeqd %%mm1, %%mm3\n" // src1 == src3 (D) | |
239 "por %%mm3, %%mm5\n" // C|D | |
240 "pandn %%mm5, %%mm4\n" // (!(A|B))&(C|D) | |
241 "movq %%mm0, %%mm2\n" | |
242 "pand %%mm7, %%mm2\n" // color & colorMask | |
243 "pand %%mm7, %%mm1\n" // src1 & colorMask | |
244 "psrld $1, %%mm2\n" // (color & colorMask) >> 1 (E) | |
245 "psrld $1, %%mm1\n" // (src & colorMask) >> 1 (F) | |
246 "paddd %%mm2, %%mm1\n" // E+F | |
247 "pand %%mm4, %%mm1\n" // (E+F) & res | |
248 "pandn %%mm0, %%mm4\n" // color& !res | |
249 | |
250 "por %%mm1, %%mm4\n" | |
251 "movq %%mm4, 0(%0)\n" // src0 = res | |
252 | |
253 "addl $8, %0\n" | |
254 "addl $8, %1\n" | |
255 "addl $8, %2\n" | |
256 "addl $8, %3\n" | |
257 | |
258 "decl %4\n" | |
259 "jnz 0b\n" | |
260 "pop %4\n" | |
261 "emms\n" | |
262 : "+r" (src0), "+r" (src1), "+r" (src2), "+r" (src3) | |
263 : "r" (count), "r" (qRGB_COLOR_MASK) | |
264 ); | |
265 #else | |
266 __asm { | |
267 movq mm7, qword ptr [qRGB_COLOR_MASK]; | |
268 mov eax, src0; | |
269 mov ebx, src1; | |
270 mov ecx, src2; | |
271 mov edx, src3; | |
272 mov edi, count; | |
273 label0: | |
274 movq mm0, qword ptr [eax]; // src0 | |
275 movq mm1, qword ptr [ebx]; // src1 | |
276 movq mm2, qword ptr [ecx]; // src2 | |
277 movq mm3, qword ptr [edx]; // src3 | |
278 movq qword ptr [edx], mm0; // src3 = src0 | |
279 movq mm4, mm0; | |
280 movq mm5, mm1; | |
281 pcmpeqd mm5, mm2; // src1 == src2 (A) | |
282 pcmpeqd mm4, mm3; // src3 == src0 (B) | |
283 por mm4, mm5; // A | B | |
284 movq mm5, mm2; | |
285 pcmpeqd mm5, mm0; // src0 == src2 (C) | |
286 pcmpeqd mm3, mm1; // src1 == src3 (D) | |
287 por mm5, mm3; // C|D | |
288 pandn mm4, mm5; // (!(A|B))&(C|D) | |
289 movq mm2, mm0; | |
290 pand mm2, mm7; // color & colorMask | |
291 pand mm1, mm7; // src1 & colorMask | |
292 psrld mm2, 1; // (color & colorMask) >> 1 (E) | |
293 psrld mm1, 1; // (src & colorMask) >> 1 (F) | |
294 paddd mm1, mm2; // E+F | |
295 pand mm1, mm4; // (E+F) & res | |
296 pandn mm4, mm0; // color & !res | |
297 | |
298 por mm4, mm1; | |
299 movq qword ptr [eax], mm4; // src0 = res | |
300 | |
301 add eax, 8; | |
302 add ebx, 8; | |
303 add ecx, 8; | |
304 add edx, 8; | |
305 | |
306 dec edi; | |
307 jnz label0; | |
308 mov src0, eax; | |
309 mov src1, ebx; | |
310 mov src2, ecx; | |
311 mov src3, edx; | |
312 emms; | |
313 } | |
314 #endif | |
315 | |
316 src0++; | |
317 src1++; | |
318 src2++; | |
319 src3++; | |
320 } | |
321 /* Swap buffers around */ | |
322 u8 *temp = frm1; | |
323 frm1 = frm3; | |
324 frm3 = frm2; | |
325 frm2 = temp; | |
326 } | |
327 | |
328 #endif | |
329 | |
330 void SmartIB32(u8 *srcPtr, u32 srcPitch, int width, int height) | |
331 { | |
332 if (frm1 == NULL) | |
333 { | |
334 Init(); | |
335 } | |
336 #ifdef MMX | |
337 if (cpu_mmx) | |
338 { | |
339 SmartIB32_MMX(srcPtr, srcPitch, width, height); | |
340 return; | |
341 } | |
342 #endif | |
343 | |
344 u32 *src0 = (u32 *)srcPtr; | |
345 u32 *src1 = (u32 *)frm1; | |
346 u32 *src2 = (u32 *)frm2; | |
347 u32 *src3 = (u32 *)frm3; | |
348 | |
349 u32 colorMask = 0xfefefe; | |
350 | |
351 int sPitch = srcPitch >> 2; | |
352 int pos = 0; | |
353 | |
354 for (int j = 0; j < height; j++) | |
355 for (int i = 0; i < sPitch; i++) | |
356 { | |
357 u32 color = src0[pos]; | |
358 src0[pos] = | |
359 (src1[pos] != src2[pos]) && | |
360 (src3[pos] != color) && | |
361 ((color == src2[pos]) || (src1[pos] == src3[pos])) | |
362 ? (((color & colorMask) >> 1) + ((src1[pos] & colorMask) >> 1)) : | |
363 color; | |
364 src3[pos] = color; /* oldest buffer now holds newest frame */ | |
365 pos++; | |
366 } | |
367 | |
368 /* Swap buffers around */ | |
369 u8 *temp = frm1; | |
370 frm1 = frm3; | |
371 frm3 = frm2; | |
372 frm2 = temp; | |
373 } | |
374 | |
375 #ifdef MMX | |
376 static void MotionBlurIB_MMX(u8 *srcPtr, u32 srcPitch, int width, int height) | |
377 { | |
378 u16 *src0 = (u16 *)srcPtr; | |
379 u16 *src1 = (u16 *)frm1; | |
380 | |
381 int count = width >> 2; | |
382 | |
383 for (int i = 0; i < height; i++) | |
384 { | |
385 #ifdef __GNUC__ | |
386 asm volatile ( | |
387 "push %2\n" | |
388 "movq 0(%3), %%mm7\n" // colorMask | |
389 "0:\n" | |
390 "movq 0(%0), %%mm0\n" // src0 | |
391 "movq 0(%1), %%mm1\n" // src1 | |
392 "movq %%mm0, 0(%1)\n" // src1 = src0 | |
393 "pand %%mm7, %%mm0\n" // color & colorMask | |
394 "pand %%mm7, %%mm1\n" // src1 & colorMask | |
395 "psrlw $1, %%mm0\n" // (color & colorMask) >> 1 (E) | |
396 "psrlw $1, %%mm1\n" // (src & colorMask) >> 1 (F) | |
397 "paddw %%mm1, %%mm0\n" // E+F | |
398 | |
399 "movq %%mm0, 0(%0)\n" // src0 = res | |
400 | |
401 "addl $8, %0\n" | |
402 "addl $8, %1\n" | |
403 | |
404 "decl %2\n" | |
405 "jnz 0b\n" | |
406 "pop %2\n" | |
407 "emms\n" | |
408 : "+r" (src0), "+r" (src1) | |
409 : "r" (count), "r" (qRGB_COLOR_MASK) | |
410 ); | |
411 #else | |
412 __asm { | |
413 movq mm7, qword ptr [qRGB_COLOR_MASK]; | |
414 mov eax, src0; | |
415 mov ebx, src1; | |
416 mov edi, count; | |
417 label0: | |
418 movq mm0, qword ptr [eax]; // src0 | |
419 movq mm1, qword ptr [ebx]; // src1 | |
420 movq qword ptr [ebx], mm0; // src1 = src0 | |
421 pand mm0, mm7; // color & colorMask | |
422 pand mm1, mm7; // src1 & colorMask | |
423 psrlw mm0, 1; // (color & colorMask) >> 1 (E) | |
424 psrlw mm1, 1; // (src & colorMask) >> 1 (F) | |
425 paddw mm0, mm1; // E+F | |
426 | |
427 movq qword ptr [eax], mm0; // src0 = res | |
428 | |
429 add eax, 8; | |
430 add ebx, 8; | |
431 | |
432 dec edi; | |
433 jnz label0; | |
434 mov src0, eax; | |
435 mov src1, ebx; | |
436 emms; | |
437 } | |
438 #endif | |
439 src0 += 2; | |
440 src1 += 2; | |
441 } | |
442 } | |
443 | |
444 #endif | |
445 | |
446 void MotionBlurIB(u8 *srcPtr, u32 srcPitch, int width, int height) | |
447 { | |
448 if (frm1 == NULL) | |
449 { | |
450 Init(); | |
451 } | |
452 | |
453 #ifdef MMX | |
454 if (cpu_mmx) | |
455 { | |
456 MotionBlurIB_MMX(srcPtr, srcPitch, width, height); | |
457 return; | |
458 } | |
459 #endif | |
460 | |
461 u16 colorMask = ~RGB_LOW_BITS_MASK; | |
462 | |
463 u16 *src0 = (u16 *)srcPtr; | |
464 u16 *src1 = (u16 *)frm1; | |
465 | |
466 int sPitch = srcPitch >> 1; | |
467 | |
468 int pos = 0; | |
469 for (int j = 0; j < height; j++) | |
470 for (int i = 0; i < sPitch; i++) | |
471 { | |
472 u16 color = src0[pos]; | |
473 src0[pos] = | |
474 (((color & colorMask) >> 1) + ((src1[pos] & colorMask) >> 1)); | |
475 src1[pos] = color; | |
476 pos++; | |
477 } | |
478 } | |
479 | |
480 #ifdef MMX | |
481 static void MotionBlurIB32_MMX(u8 *srcPtr, u32 srcPitch, int width, int height) | |
482 { | |
483 u32 *src0 = (u32 *)srcPtr; | |
484 u32 *src1 = (u32 *)frm1; | |
485 | |
486 int count = width >> 1; | |
487 | |
488 for (int i = 0; i < height; i++) | |
489 { | |
490 #ifdef __GNUC__ | |
491 asm volatile ( | |
492 "push %2\n" | |
493 "movq 0(%3), %%mm7\n" // colorMask | |
494 "0:\n" | |
495 "movq 0(%0), %%mm0\n" // src0 | |
496 "movq 0(%1), %%mm1\n" // src1 | |
497 "movq %%mm0, 0(%1)\n" // src1 = src0 | |
498 "pand %%mm7, %%mm0\n" // color & colorMask | |
499 "pand %%mm7, %%mm1\n" // src1 & colorMask | |
500 "psrld $1, %%mm0\n" // (color & colorMask) >> 1 (E) | |
501 "psrld $1, %%mm1\n" // (src & colorMask) >> 1 (F) | |
502 "paddd %%mm1, %%mm0\n" // E+F | |
503 | |
504 "movq %%mm0, 0(%0)\n" // src0 = res | |
505 | |
506 "addl $8, %0\n" | |
507 "addl $8, %1\n" | |
508 | |
509 "decl %2\n" | |
510 "jnz 0b\n" | |
511 "pop %2\n" | |
512 "emms\n" | |
513 : "+r" (src0), "+r" (src1) | |
514 : "r" (count), "r" (qRGB_COLOR_MASK) | |
515 ); | |
516 #else | |
517 __asm { | |
518 movq mm7, qword ptr [qRGB_COLOR_MASK]; | |
519 mov eax, src0; | |
520 mov ebx, src1; | |
521 mov edi, count; | |
522 label0: | |
523 movq mm0, qword ptr [eax]; // src0 | |
524 movq mm1, qword ptr [ebx]; // src1 | |
525 movq qword ptr [ebx], mm0; // src1 = src0 | |
526 pand mm0, mm7; // color & colorMask | |
527 pand mm1, mm7; // src1 & colorMask | |
528 psrld mm0, 1; // (color & colorMask) >> 1 (E) | |
529 psrld mm1, 1; // (src & colorMask) >> 1 (F) | |
530 paddd mm0, mm1; // E+F | |
531 | |
532 movq qword ptr [eax], mm0; // src0 = res | |
533 | |
534 add eax, 8; | |
535 add ebx, 8; | |
536 | |
537 dec edi; | |
538 jnz label0; | |
539 mov src0, eax; | |
540 mov src1, ebx; | |
541 emms; | |
542 } | |
543 #endif | |
544 src0++; | |
545 src1++; | |
546 } | |
547 } | |
548 | |
549 #endif | |
550 | |
551 void MotionBlurIB32(u8 *srcPtr, u32 srcPitch, int width, int height) | |
552 { | |
553 if (frm1 == NULL) | |
554 { | |
555 Init(); | |
556 } | |
557 | |
558 #ifdef MMX | |
559 if (cpu_mmx) | |
560 { | |
561 MotionBlurIB32_MMX(srcPtr, srcPitch, width, height); | |
562 return; | |
563 } | |
564 #endif | |
565 | |
566 u32 *src0 = (u32 *)srcPtr; | |
567 u32 *src1 = (u32 *)frm1; | |
568 | |
569 u32 colorMask = 0xfefefe; | |
570 | |
571 int sPitch = srcPitch >> 2; | |
572 int pos = 0; | |
573 | |
574 for (int j = 0; j < height; j++) | |
575 for (int i = 0; i < sPitch; i++) | |
576 { | |
577 u32 color = src0[pos]; | |
578 src0[pos] = (((color & colorMask) >> 1) + | |
579 ((src1[pos] & colorMask) >> 1)); | |
580 src1[pos] = color; | |
581 pos++; | |
582 } | |
583 } | |
584 | |
585 static int count = 0; | |
586 | |
587 void InterlaceIB(u8 *srcPtr, u32 srcPitch, int width, int height) | |
588 { | |
589 if (frm1 == NULL) | |
590 { | |
591 Init(); | |
592 } | |
593 | |
594 u16 colorMask = ~RGB_LOW_BITS_MASK; | |
595 | |
596 u16 *src0 = (u16 *)srcPtr; | |
597 u16 *src1 = (u16 *)frm1; | |
598 | |
599 int sPitch = srcPitch >> 1; | |
600 | |
601 int pos = 0; | |
602 for (int j = 0; j < height; j++) | |
603 { | |
604 bool render = count ? (j & 1) != 0 : (j & 1) == 0; | |
605 if (render) | |
606 { | |
607 for (int i = 0; i < sPitch; i++) | |
608 { | |
609 u16 color = src0[pos]; | |
610 src0[pos] = | |
611 (((color & colorMask) >> 1) + ((((src1[pos] & colorMask) >> 1) & colorMask) >> 1)); | |
612 src1[pos] = color; | |
613 pos++; | |
614 } | |
615 } | |
616 else | |
617 { | |
618 for (int i = 0; i < sPitch; i++) | |
619 { | |
620 u16 color = src0[pos]; | |
621 src0[pos] = | |
622 (((((color & colorMask) >> 1) & colorMask) >> 1) + ((src1[pos] & colorMask) >> 1)); | |
623 src1[pos] = color; | |
624 pos++; | |
625 } | |
626 } | |
627 } | |
628 count = count ^ 1; | |
629 } | |
630 |