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dsputil_rnd_template.c
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1 /*
2  * DSP utils mmx functions are compiled twice for rnd/no_rnd
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  * Copyright (c) 2003-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
7  * mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
8  * and improved by Zdenek Kabelac <kabi@users.sf.net>
9  *
10  * This file is part of FFmpeg.
11  *
12  * FFmpeg is free software; you can redistribute it and/or
13  * modify it under the terms of the GNU Lesser General Public
14  * License as published by the Free Software Foundation; either
15  * version 2.1 of the License, or (at your option) any later version.
16  *
17  * FFmpeg is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20  * Lesser General Public License for more details.
21  *
22  * You should have received a copy of the GNU Lesser General Public
23  * License along with FFmpeg; if not, write to the Free Software
24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25  */
26 
27 // put_pixels
28 static void DEF(put, pixels8_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
29 {
30  MOVQ_BFE(mm6);
31  __asm__ volatile(
32  "lea (%3, %3), %%"REG_a" \n\t"
33  ".p2align 3 \n\t"
34  "1: \n\t"
35  "movq (%1), %%mm0 \n\t"
36  "movq 1(%1), %%mm1 \n\t"
37  "movq (%1, %3), %%mm2 \n\t"
38  "movq 1(%1, %3), %%mm3 \n\t"
39  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
40  "movq %%mm4, (%2) \n\t"
41  "movq %%mm5, (%2, %3) \n\t"
42  "add %%"REG_a", %1 \n\t"
43  "add %%"REG_a", %2 \n\t"
44  "movq (%1), %%mm0 \n\t"
45  "movq 1(%1), %%mm1 \n\t"
46  "movq (%1, %3), %%mm2 \n\t"
47  "movq 1(%1, %3), %%mm3 \n\t"
48  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
49  "movq %%mm4, (%2) \n\t"
50  "movq %%mm5, (%2, %3) \n\t"
51  "add %%"REG_a", %1 \n\t"
52  "add %%"REG_a", %2 \n\t"
53  "subl $4, %0 \n\t"
54  "jnz 1b \n\t"
55  :"+g"(h), "+S"(pixels), "+D"(block)
56  :"r"((x86_reg)line_size)
57  :REG_a, "memory");
58 }
59 
60 static void av_unused DEF(put, pixels8_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int src1Stride, int h)
61 {
62  MOVQ_BFE(mm6);
63  __asm__ volatile(
64  "testl $1, %0 \n\t"
65  " jz 1f \n\t"
66  "movq (%1), %%mm0 \n\t"
67  "movq (%2), %%mm1 \n\t"
68  "add %4, %1 \n\t"
69  "add $8, %2 \n\t"
70  PAVGB(%%mm0, %%mm1, %%mm4, %%mm6)
71  "movq %%mm4, (%3) \n\t"
72  "add %5, %3 \n\t"
73  "decl %0 \n\t"
74  ".p2align 3 \n\t"
75  "1: \n\t"
76  "movq (%1), %%mm0 \n\t"
77  "movq (%2), %%mm1 \n\t"
78  "add %4, %1 \n\t"
79  "movq (%1), %%mm2 \n\t"
80  "movq 8(%2), %%mm3 \n\t"
81  "add %4, %1 \n\t"
82  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
83  "movq %%mm4, (%3) \n\t"
84  "add %5, %3 \n\t"
85  "movq %%mm5, (%3) \n\t"
86  "add %5, %3 \n\t"
87  "movq (%1), %%mm0 \n\t"
88  "movq 16(%2), %%mm1 \n\t"
89  "add %4, %1 \n\t"
90  "movq (%1), %%mm2 \n\t"
91  "movq 24(%2), %%mm3 \n\t"
92  "add %4, %1 \n\t"
93  "add $32, %2 \n\t"
94  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
95  "movq %%mm4, (%3) \n\t"
96  "add %5, %3 \n\t"
97  "movq %%mm5, (%3) \n\t"
98  "add %5, %3 \n\t"
99  "subl $4, %0 \n\t"
100  "jnz 1b \n\t"
101 #if !HAVE_EBX_AVAILABLE //Note "+bm" and "+mb" are buggy too (with gcc 3.2.2 at least) and cannot be used
102  :"+m"(h), "+a"(src1), "+c"(src2), "+d"(dst)
103 #else
104  :"+b"(h), "+a"(src1), "+c"(src2), "+d"(dst)
105 #endif
106  :"S"((x86_reg)src1Stride), "D"((x86_reg)dstStride)
107  :"memory");
108 }
109 
110 static void DEF(put, pixels16_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
111 {
112  MOVQ_BFE(mm6);
113  __asm__ volatile(
114  "lea (%3, %3), %%"REG_a" \n\t"
115  ".p2align 3 \n\t"
116  "1: \n\t"
117  "movq (%1), %%mm0 \n\t"
118  "movq 1(%1), %%mm1 \n\t"
119  "movq (%1, %3), %%mm2 \n\t"
120  "movq 1(%1, %3), %%mm3 \n\t"
121  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
122  "movq %%mm4, (%2) \n\t"
123  "movq %%mm5, (%2, %3) \n\t"
124  "movq 8(%1), %%mm0 \n\t"
125  "movq 9(%1), %%mm1 \n\t"
126  "movq 8(%1, %3), %%mm2 \n\t"
127  "movq 9(%1, %3), %%mm3 \n\t"
128  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
129  "movq %%mm4, 8(%2) \n\t"
130  "movq %%mm5, 8(%2, %3) \n\t"
131  "add %%"REG_a", %1 \n\t"
132  "add %%"REG_a", %2 \n\t"
133  "movq (%1), %%mm0 \n\t"
134  "movq 1(%1), %%mm1 \n\t"
135  "movq (%1, %3), %%mm2 \n\t"
136  "movq 1(%1, %3), %%mm3 \n\t"
137  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
138  "movq %%mm4, (%2) \n\t"
139  "movq %%mm5, (%2, %3) \n\t"
140  "movq 8(%1), %%mm0 \n\t"
141  "movq 9(%1), %%mm1 \n\t"
142  "movq 8(%1, %3), %%mm2 \n\t"
143  "movq 9(%1, %3), %%mm3 \n\t"
144  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
145  "movq %%mm4, 8(%2) \n\t"
146  "movq %%mm5, 8(%2, %3) \n\t"
147  "add %%"REG_a", %1 \n\t"
148  "add %%"REG_a", %2 \n\t"
149  "subl $4, %0 \n\t"
150  "jnz 1b \n\t"
151  :"+g"(h), "+S"(pixels), "+D"(block)
152  :"r"((x86_reg)line_size)
153  :REG_a, "memory");
154 }
155 
156 static void av_unused DEF(put, pixels16_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int src1Stride, int h)
157 {
158  MOVQ_BFE(mm6);
159  __asm__ volatile(
160  "testl $1, %0 \n\t"
161  " jz 1f \n\t"
162  "movq (%1), %%mm0 \n\t"
163  "movq (%2), %%mm1 \n\t"
164  "movq 8(%1), %%mm2 \n\t"
165  "movq 8(%2), %%mm3 \n\t"
166  "add %4, %1 \n\t"
167  "add $16, %2 \n\t"
168  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
169  "movq %%mm4, (%3) \n\t"
170  "movq %%mm5, 8(%3) \n\t"
171  "add %5, %3 \n\t"
172  "decl %0 \n\t"
173  ".p2align 3 \n\t"
174  "1: \n\t"
175  "movq (%1), %%mm0 \n\t"
176  "movq (%2), %%mm1 \n\t"
177  "movq 8(%1), %%mm2 \n\t"
178  "movq 8(%2), %%mm3 \n\t"
179  "add %4, %1 \n\t"
180  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
181  "movq %%mm4, (%3) \n\t"
182  "movq %%mm5, 8(%3) \n\t"
183  "add %5, %3 \n\t"
184  "movq (%1), %%mm0 \n\t"
185  "movq 16(%2), %%mm1 \n\t"
186  "movq 8(%1), %%mm2 \n\t"
187  "movq 24(%2), %%mm3 \n\t"
188  "add %4, %1 \n\t"
189  PAVGBP(%%mm0, %%mm1, %%mm4, %%mm2, %%mm3, %%mm5)
190  "movq %%mm4, (%3) \n\t"
191  "movq %%mm5, 8(%3) \n\t"
192  "add %5, %3 \n\t"
193  "add $32, %2 \n\t"
194  "subl $2, %0 \n\t"
195  "jnz 1b \n\t"
196 #if !HAVE_EBX_AVAILABLE //Note "+bm" and "+mb" are buggy too (with gcc 3.2.2 at least) and cannot be used
197  :"+m"(h), "+a"(src1), "+c"(src2), "+d"(dst)
198 #else
199  :"+b"(h), "+a"(src1), "+c"(src2), "+d"(dst)
200 #endif
201  :"S"((x86_reg)src1Stride), "D"((x86_reg)dstStride)
202  :"memory");
203 }
204 
205 static void DEF(put, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
206 {
207  MOVQ_BFE(mm6);
208  __asm__ volatile(
209  "lea (%3, %3), %%"REG_a" \n\t"
210  "movq (%1), %%mm0 \n\t"
211  ".p2align 3 \n\t"
212  "1: \n\t"
213  "movq (%1, %3), %%mm1 \n\t"
214  "movq (%1, %%"REG_a"),%%mm2 \n\t"
215  PAVGBP(%%mm1, %%mm0, %%mm4, %%mm2, %%mm1, %%mm5)
216  "movq %%mm4, (%2) \n\t"
217  "movq %%mm5, (%2, %3) \n\t"
218  "add %%"REG_a", %1 \n\t"
219  "add %%"REG_a", %2 \n\t"
220  "movq (%1, %3), %%mm1 \n\t"
221  "movq (%1, %%"REG_a"),%%mm0 \n\t"
222  PAVGBP(%%mm1, %%mm2, %%mm4, %%mm0, %%mm1, %%mm5)
223  "movq %%mm4, (%2) \n\t"
224  "movq %%mm5, (%2, %3) \n\t"
225  "add %%"REG_a", %1 \n\t"
226  "add %%"REG_a", %2 \n\t"
227  "subl $4, %0 \n\t"
228  "jnz 1b \n\t"
229  :"+g"(h), "+S"(pixels), "+D"(block)
230  :"r"((x86_reg)line_size)
231  :REG_a, "memory");
232 }
233 
234 static void DEF(put, pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
235 {
236  MOVQ_ZERO(mm7);
237  SET_RND(mm6); // =2 for rnd and =1 for no_rnd version
238  __asm__ volatile(
239  "movq (%1), %%mm0 \n\t"
240  "movq 1(%1), %%mm4 \n\t"
241  "movq %%mm0, %%mm1 \n\t"
242  "movq %%mm4, %%mm5 \n\t"
243  "punpcklbw %%mm7, %%mm0 \n\t"
244  "punpcklbw %%mm7, %%mm4 \n\t"
245  "punpckhbw %%mm7, %%mm1 \n\t"
246  "punpckhbw %%mm7, %%mm5 \n\t"
247  "paddusw %%mm0, %%mm4 \n\t"
248  "paddusw %%mm1, %%mm5 \n\t"
249  "xor %%"REG_a", %%"REG_a" \n\t"
250  "add %3, %1 \n\t"
251  ".p2align 3 \n\t"
252  "1: \n\t"
253  "movq (%1, %%"REG_a"), %%mm0 \n\t"
254  "movq 1(%1, %%"REG_a"), %%mm2 \n\t"
255  "movq %%mm0, %%mm1 \n\t"
256  "movq %%mm2, %%mm3 \n\t"
257  "punpcklbw %%mm7, %%mm0 \n\t"
258  "punpcklbw %%mm7, %%mm2 \n\t"
259  "punpckhbw %%mm7, %%mm1 \n\t"
260  "punpckhbw %%mm7, %%mm3 \n\t"
261  "paddusw %%mm2, %%mm0 \n\t"
262  "paddusw %%mm3, %%mm1 \n\t"
263  "paddusw %%mm6, %%mm4 \n\t"
264  "paddusw %%mm6, %%mm5 \n\t"
265  "paddusw %%mm0, %%mm4 \n\t"
266  "paddusw %%mm1, %%mm5 \n\t"
267  "psrlw $2, %%mm4 \n\t"
268  "psrlw $2, %%mm5 \n\t"
269  "packuswb %%mm5, %%mm4 \n\t"
270  "movq %%mm4, (%2, %%"REG_a") \n\t"
271  "add %3, %%"REG_a" \n\t"
272 
273  "movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3
274  "movq 1(%1, %%"REG_a"), %%mm4 \n\t"
275  "movq %%mm2, %%mm3 \n\t"
276  "movq %%mm4, %%mm5 \n\t"
277  "punpcklbw %%mm7, %%mm2 \n\t"
278  "punpcklbw %%mm7, %%mm4 \n\t"
279  "punpckhbw %%mm7, %%mm3 \n\t"
280  "punpckhbw %%mm7, %%mm5 \n\t"
281  "paddusw %%mm2, %%mm4 \n\t"
282  "paddusw %%mm3, %%mm5 \n\t"
283  "paddusw %%mm6, %%mm0 \n\t"
284  "paddusw %%mm6, %%mm1 \n\t"
285  "paddusw %%mm4, %%mm0 \n\t"
286  "paddusw %%mm5, %%mm1 \n\t"
287  "psrlw $2, %%mm0 \n\t"
288  "psrlw $2, %%mm1 \n\t"
289  "packuswb %%mm1, %%mm0 \n\t"
290  "movq %%mm0, (%2, %%"REG_a") \n\t"
291  "add %3, %%"REG_a" \n\t"
292 
293  "subl $2, %0 \n\t"
294  "jnz 1b \n\t"
295  :"+g"(h), "+S"(pixels)
296  :"D"(block), "r"((x86_reg)line_size)
297  :REG_a, "memory");
298 }
299 
300 // avg_pixels
301 static void av_unused DEF(avg, pixels4)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
302 {
303  MOVQ_BFE(mm6);
304  JUMPALIGN();
305  do {
306  __asm__ volatile(
307  "movd %0, %%mm0 \n\t"
308  "movd %1, %%mm1 \n\t"
309  OP_AVG(%%mm0, %%mm1, %%mm2, %%mm6)
310  "movd %%mm2, %0 \n\t"
311  :"+m"(*block)
312  :"m"(*pixels)
313  :"memory");
314  pixels += line_size;
315  block += line_size;
316  }
317  while (--h);
318 }
319 
320 #ifndef NO_RND
321 // in case more speed is needed - unroling would certainly help
322 static void DEF(avg, pixels8)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
323 {
324  MOVQ_BFE(mm6);
325  JUMPALIGN();
326  do {
327  __asm__ volatile(
328  "movq %0, %%mm0 \n\t"
329  "movq %1, %%mm1 \n\t"
330  OP_AVG(%%mm0, %%mm1, %%mm2, %%mm6)
331  "movq %%mm2, %0 \n\t"
332  :"+m"(*block)
333  :"m"(*pixels)
334  :"memory");
335  pixels += line_size;
336  block += line_size;
337  }
338  while (--h);
339 }
340 #endif // NO_RND
341 
342 static void DEF(avg, pixels16)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
343 {
344  MOVQ_BFE(mm6);
345  JUMPALIGN();
346  do {
347  __asm__ volatile(
348  "movq %0, %%mm0 \n\t"
349  "movq %1, %%mm1 \n\t"
350  OP_AVG(%%mm0, %%mm1, %%mm2, %%mm6)
351  "movq %%mm2, %0 \n\t"
352  "movq 8%0, %%mm0 \n\t"
353  "movq 8%1, %%mm1 \n\t"
354  OP_AVG(%%mm0, %%mm1, %%mm2, %%mm6)
355  "movq %%mm2, 8%0 \n\t"
356  :"+m"(*block)
357  :"m"(*pixels)
358  :"memory");
359  pixels += line_size;
360  block += line_size;
361  }
362  while (--h);
363 }
364 
365 #ifndef NO_RND
366 static void DEF(avg, pixels8_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
367 {
368  MOVQ_BFE(mm6);
369  JUMPALIGN();
370  do {
371  __asm__ volatile(
372  "movq %1, %%mm0 \n\t"
373  "movq 1%1, %%mm1 \n\t"
374  "movq %0, %%mm3 \n\t"
375  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
376  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
377  "movq %%mm0, %0 \n\t"
378  :"+m"(*block)
379  :"m"(*pixels)
380  :"memory");
381  pixels += line_size;
382  block += line_size;
383  } while (--h);
384 }
385 #endif // NO_RND
386 
387 static av_unused void DEF(avg, pixels8_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int src1Stride, int h)
388 {
389  MOVQ_BFE(mm6);
390  JUMPALIGN();
391  do {
392  __asm__ volatile(
393  "movq %1, %%mm0 \n\t"
394  "movq %2, %%mm1 \n\t"
395  "movq %0, %%mm3 \n\t"
396  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
397  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
398  "movq %%mm0, %0 \n\t"
399  :"+m"(*dst)
400  :"m"(*src1), "m"(*src2)
401  :"memory");
402  dst += dstStride;
403  src1 += src1Stride;
404  src2 += 8;
405  } while (--h);
406 }
407 
408 static void DEF(avg, pixels16_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
409 {
410  MOVQ_BFE(mm6);
411  JUMPALIGN();
412  do {
413  __asm__ volatile(
414  "movq %1, %%mm0 \n\t"
415  "movq 1%1, %%mm1 \n\t"
416  "movq %0, %%mm3 \n\t"
417  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
418  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
419  "movq %%mm0, %0 \n\t"
420  "movq 8%1, %%mm0 \n\t"
421  "movq 9%1, %%mm1 \n\t"
422  "movq 8%0, %%mm3 \n\t"
423  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
424  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
425  "movq %%mm0, 8%0 \n\t"
426  :"+m"(*block)
427  :"m"(*pixels)
428  :"memory");
429  pixels += line_size;
430  block += line_size;
431  } while (--h);
432 }
433 
434 static av_unused void DEF(avg, pixels16_l2)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int src1Stride, int h)
435 {
436  MOVQ_BFE(mm6);
437  JUMPALIGN();
438  do {
439  __asm__ volatile(
440  "movq %1, %%mm0 \n\t"
441  "movq %2, %%mm1 \n\t"
442  "movq %0, %%mm3 \n\t"
443  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
444  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
445  "movq %%mm0, %0 \n\t"
446  "movq 8%1, %%mm0 \n\t"
447  "movq 8%2, %%mm1 \n\t"
448  "movq 8%0, %%mm3 \n\t"
449  PAVGB(%%mm0, %%mm1, %%mm2, %%mm6)
450  OP_AVG(%%mm3, %%mm2, %%mm0, %%mm6)
451  "movq %%mm0, 8%0 \n\t"
452  :"+m"(*dst)
453  :"m"(*src1), "m"(*src2)
454  :"memory");
455  dst += dstStride;
456  src1 += src1Stride;
457  src2 += 16;
458  } while (--h);
459 }
460 
461 static void DEF(avg, pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
462 {
463  MOVQ_BFE(mm6);
464  __asm__ volatile(
465  "lea (%3, %3), %%"REG_a" \n\t"
466  "movq (%1), %%mm0 \n\t"
467  ".p2align 3 \n\t"
468  "1: \n\t"
469  "movq (%1, %3), %%mm1 \n\t"
470  "movq (%1, %%"REG_a"), %%mm2 \n\t"
471  PAVGBP(%%mm1, %%mm0, %%mm4, %%mm2, %%mm1, %%mm5)
472  "movq (%2), %%mm3 \n\t"
473  OP_AVG(%%mm3, %%mm4, %%mm0, %%mm6)
474  "movq (%2, %3), %%mm3 \n\t"
475  OP_AVG(%%mm3, %%mm5, %%mm1, %%mm6)
476  "movq %%mm0, (%2) \n\t"
477  "movq %%mm1, (%2, %3) \n\t"
478  "add %%"REG_a", %1 \n\t"
479  "add %%"REG_a", %2 \n\t"
480 
481  "movq (%1, %3), %%mm1 \n\t"
482  "movq (%1, %%"REG_a"), %%mm0 \n\t"
483  PAVGBP(%%mm1, %%mm2, %%mm4, %%mm0, %%mm1, %%mm5)
484  "movq (%2), %%mm3 \n\t"
485  OP_AVG(%%mm3, %%mm4, %%mm2, %%mm6)
486  "movq (%2, %3), %%mm3 \n\t"
487  OP_AVG(%%mm3, %%mm5, %%mm1, %%mm6)
488  "movq %%mm2, (%2) \n\t"
489  "movq %%mm1, (%2, %3) \n\t"
490  "add %%"REG_a", %1 \n\t"
491  "add %%"REG_a", %2 \n\t"
492 
493  "subl $4, %0 \n\t"
494  "jnz 1b \n\t"
495  :"+g"(h), "+S"(pixels), "+D"(block)
496  :"r"((x86_reg)line_size)
497  :REG_a, "memory");
498 }
499 
500 // this routine is 'slightly' suboptimal but mostly unused
501 static void DEF(avg, pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
502 {
503  MOVQ_ZERO(mm7);
504  SET_RND(mm6); // =2 for rnd and =1 for no_rnd version
505  __asm__ volatile(
506  "movq (%1), %%mm0 \n\t"
507  "movq 1(%1), %%mm4 \n\t"
508  "movq %%mm0, %%mm1 \n\t"
509  "movq %%mm4, %%mm5 \n\t"
510  "punpcklbw %%mm7, %%mm0 \n\t"
511  "punpcklbw %%mm7, %%mm4 \n\t"
512  "punpckhbw %%mm7, %%mm1 \n\t"
513  "punpckhbw %%mm7, %%mm5 \n\t"
514  "paddusw %%mm0, %%mm4 \n\t"
515  "paddusw %%mm1, %%mm5 \n\t"
516  "xor %%"REG_a", %%"REG_a" \n\t"
517  "add %3, %1 \n\t"
518  ".p2align 3 \n\t"
519  "1: \n\t"
520  "movq (%1, %%"REG_a"), %%mm0 \n\t"
521  "movq 1(%1, %%"REG_a"), %%mm2 \n\t"
522  "movq %%mm0, %%mm1 \n\t"
523  "movq %%mm2, %%mm3 \n\t"
524  "punpcklbw %%mm7, %%mm0 \n\t"
525  "punpcklbw %%mm7, %%mm2 \n\t"
526  "punpckhbw %%mm7, %%mm1 \n\t"
527  "punpckhbw %%mm7, %%mm3 \n\t"
528  "paddusw %%mm2, %%mm0 \n\t"
529  "paddusw %%mm3, %%mm1 \n\t"
530  "paddusw %%mm6, %%mm4 \n\t"
531  "paddusw %%mm6, %%mm5 \n\t"
532  "paddusw %%mm0, %%mm4 \n\t"
533  "paddusw %%mm1, %%mm5 \n\t"
534  "psrlw $2, %%mm4 \n\t"
535  "psrlw $2, %%mm5 \n\t"
536  "movq (%2, %%"REG_a"), %%mm3 \n\t"
537  "packuswb %%mm5, %%mm4 \n\t"
538  "pcmpeqd %%mm2, %%mm2 \n\t"
539  "paddb %%mm2, %%mm2 \n\t"
540  OP_AVG(%%mm3, %%mm4, %%mm5, %%mm2)
541  "movq %%mm5, (%2, %%"REG_a") \n\t"
542  "add %3, %%"REG_a" \n\t"
543 
544  "movq (%1, %%"REG_a"), %%mm2 \n\t" // 0 <-> 2 1 <-> 3
545  "movq 1(%1, %%"REG_a"), %%mm4 \n\t"
546  "movq %%mm2, %%mm3 \n\t"
547  "movq %%mm4, %%mm5 \n\t"
548  "punpcklbw %%mm7, %%mm2 \n\t"
549  "punpcklbw %%mm7, %%mm4 \n\t"
550  "punpckhbw %%mm7, %%mm3 \n\t"
551  "punpckhbw %%mm7, %%mm5 \n\t"
552  "paddusw %%mm2, %%mm4 \n\t"
553  "paddusw %%mm3, %%mm5 \n\t"
554  "paddusw %%mm6, %%mm0 \n\t"
555  "paddusw %%mm6, %%mm1 \n\t"
556  "paddusw %%mm4, %%mm0 \n\t"
557  "paddusw %%mm5, %%mm1 \n\t"
558  "psrlw $2, %%mm0 \n\t"
559  "psrlw $2, %%mm1 \n\t"
560  "movq (%2, %%"REG_a"), %%mm3 \n\t"
561  "packuswb %%mm1, %%mm0 \n\t"
562  "pcmpeqd %%mm2, %%mm2 \n\t"
563  "paddb %%mm2, %%mm2 \n\t"
564  OP_AVG(%%mm3, %%mm0, %%mm1, %%mm2)
565  "movq %%mm1, (%2, %%"REG_a") \n\t"
566  "add %3, %%"REG_a" \n\t"
567 
568  "subl $2, %0 \n\t"
569  "jnz 1b \n\t"
570  :"+g"(h), "+S"(pixels)
571  :"D"(block), "r"((x86_reg)line_size)
572  :REG_a, "memory");
573 }
574 
575 //FIXME optimize
576 static void DEF(put, pixels16_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){
577  DEF(put, pixels8_y2)(block , pixels , line_size, h);
578  DEF(put, pixels8_y2)(block+8, pixels+8, line_size, h);
579 }
580 
581 static void DEF(put, pixels16_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){
582  DEF(put, pixels8_xy2)(block , pixels , line_size, h);
583  DEF(put, pixels8_xy2)(block+8, pixels+8, line_size, h);
584 }
585 
586 static void DEF(avg, pixels16_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){
587  DEF(avg, pixels8_y2)(block , pixels , line_size, h);
588  DEF(avg, pixels8_y2)(block+8, pixels+8, line_size, h);
589 }
590 
591 static void DEF(avg, pixels16_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){
592  DEF(avg, pixels8_xy2)(block , pixels , line_size, h);
593  DEF(avg, pixels8_xy2)(block+8, pixels+8, line_size, h);
594 }
Generated on Sat May 25 2013 04:01:13 for FFmpeg by   doxygen 1.8.2