1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
|
/*
* MMX optimized DSP utils
* Copyright (c) 2000, 2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "libavutil/cpu.h"
#include "libavutil/x86/asm.h"
#include "constants.h"
#include "dsputil_x86.h"
#include "inline_asm.h"
#if HAVE_INLINE_ASM
void ff_put_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
int line_size)
{
const int16_t *p;
uint8_t *pix;
/* read the pixels */
p = block;
pix = pixels;
/* unrolled loop */
__asm__ volatile (
"movq (%3), %%mm0 \n\t"
"movq 8(%3), %%mm1 \n\t"
"movq 16(%3), %%mm2 \n\t"
"movq 24(%3), %%mm3 \n\t"
"movq 32(%3), %%mm4 \n\t"
"movq 40(%3), %%mm5 \n\t"
"movq 48(%3), %%mm6 \n\t"
"movq 56(%3), %%mm7 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"packuswb %%mm5, %%mm4 \n\t"
"packuswb %%mm7, %%mm6 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm2, (%0, %1) \n\t"
"movq %%mm4, (%0, %1, 2) \n\t"
"movq %%mm6, (%0, %2) \n\t"
:: "r" (pix), "r" ((x86_reg) line_size), "r" ((x86_reg) line_size * 3),
"r" (p)
: "memory");
pix += line_size * 4;
p += 32;
// if here would be an exact copy of the code above
// compiler would generate some very strange code
// thus using "r"
__asm__ volatile (
"movq (%3), %%mm0 \n\t"
"movq 8(%3), %%mm1 \n\t"
"movq 16(%3), %%mm2 \n\t"
"movq 24(%3), %%mm3 \n\t"
"movq 32(%3), %%mm4 \n\t"
"movq 40(%3), %%mm5 \n\t"
"movq 48(%3), %%mm6 \n\t"
"movq 56(%3), %%mm7 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"packuswb %%mm5, %%mm4 \n\t"
"packuswb %%mm7, %%mm6 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm2, (%0, %1) \n\t"
"movq %%mm4, (%0, %1, 2) \n\t"
"movq %%mm6, (%0, %2) \n\t"
:: "r" (pix), "r" ((x86_reg) line_size), "r" ((x86_reg) line_size * 3),
"r" (p)
: "memory");
}
#define put_signed_pixels_clamped_mmx_half(off) \
"movq "#off"(%2), %%mm1 \n\t" \
"movq 16 + "#off"(%2), %%mm2 \n\t" \
"movq 32 + "#off"(%2), %%mm3 \n\t" \
"movq 48 + "#off"(%2), %%mm4 \n\t" \
"packsswb 8 + "#off"(%2), %%mm1 \n\t" \
"packsswb 24 + "#off"(%2), %%mm2 \n\t" \
"packsswb 40 + "#off"(%2), %%mm3 \n\t" \
"packsswb 56 + "#off"(%2), %%mm4 \n\t" \
"paddb %%mm0, %%mm1 \n\t" \
"paddb %%mm0, %%mm2 \n\t" \
"paddb %%mm0, %%mm3 \n\t" \
"paddb %%mm0, %%mm4 \n\t" \
"movq %%mm1, (%0) \n\t" \
"movq %%mm2, (%0, %3) \n\t" \
"movq %%mm3, (%0, %3, 2) \n\t" \
"movq %%mm4, (%0, %1) \n\t"
void ff_put_signed_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
int line_size)
{
x86_reg line_skip = line_size;
x86_reg line_skip3;
__asm__ volatile (
"movq "MANGLE(ff_pb_80)", %%mm0 \n\t"
"lea (%3, %3, 2), %1 \n\t"
put_signed_pixels_clamped_mmx_half(0)
"lea (%0, %3, 4), %0 \n\t"
put_signed_pixels_clamped_mmx_half(64)
: "+&r" (pixels), "=&r" (line_skip3)
: "r" (block), "r" (line_skip)
: "memory");
}
void ff_add_pixels_clamped_mmx(const int16_t *block, uint8_t *pixels,
int line_size)
{
const int16_t *p;
uint8_t *pix;
int i;
/* read the pixels */
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
i = 4;
do {
__asm__ volatile (
"movq (%2), %%mm0 \n\t"
"movq 8(%2), %%mm1 \n\t"
"movq 16(%2), %%mm2 \n\t"
"movq 24(%2), %%mm3 \n\t"
"movq %0, %%mm4 \n\t"
"movq %1, %%mm6 \n\t"
"movq %%mm4, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t"
"punpckhbw %%mm7, %%mm5 \n\t"
"paddsw %%mm4, %%mm0 \n\t"
"paddsw %%mm5, %%mm1 \n\t"
"movq %%mm6, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm6 \n\t"
"punpckhbw %%mm7, %%mm5 \n\t"
"paddsw %%mm6, %%mm2 \n\t"
"paddsw %%mm5, %%mm3 \n\t"
"packuswb %%mm1, %%mm0 \n\t"
"packuswb %%mm3, %%mm2 \n\t"
"movq %%mm0, %0 \n\t"
"movq %%mm2, %1 \n\t"
: "+m" (*pix), "+m" (*(pix + line_size))
: "r" (p)
: "memory");
pix += line_size * 2;
p += 16;
} while (--i);
}
/* Draw the edges of width 'w' of an image of size width, height
* this MMX version can only handle w == 8 || w == 16. */
void ff_draw_edges_mmx(uint8_t *buf, int wrap, int width, int height,
int w, int h, int sides)
{
uint8_t *ptr, *last_line;
int i;
last_line = buf + (height - 1) * wrap;
/* left and right */
ptr = buf;
if (w == 8) {
__asm__ volatile (
"1: \n\t"
"movd (%0), %%mm0 \n\t"
"punpcklbw %%mm0, %%mm0 \n\t"
"punpcklwd %%mm0, %%mm0 \n\t"
"punpckldq %%mm0, %%mm0 \n\t"
"movq %%mm0, -8(%0) \n\t"
"movq -8(%0, %2), %%mm1 \n\t"
"punpckhbw %%mm1, %%mm1 \n\t"
"punpckhwd %%mm1, %%mm1 \n\t"
"punpckhdq %%mm1, %%mm1 \n\t"
"movq %%mm1, (%0, %2) \n\t"
"add %1, %0 \n\t"
"cmp %3, %0 \n\t"
"jb 1b \n\t"
: "+r" (ptr)
: "r" ((x86_reg) wrap), "r" ((x86_reg) width),
"r" (ptr + wrap * height));
} else {
__asm__ volatile (
"1: \n\t"
"movd (%0), %%mm0 \n\t"
"punpcklbw %%mm0, %%mm0 \n\t"
"punpcklwd %%mm0, %%mm0 \n\t"
"punpckldq %%mm0, %%mm0 \n\t"
"movq %%mm0, -8(%0) \n\t"
"movq %%mm0, -16(%0) \n\t"
"movq -8(%0, %2), %%mm1 \n\t"
"punpckhbw %%mm1, %%mm1 \n\t"
"punpckhwd %%mm1, %%mm1 \n\t"
"punpckhdq %%mm1, %%mm1 \n\t"
"movq %%mm1, (%0, %2) \n\t"
"movq %%mm1, 8(%0, %2) \n\t"
"add %1, %0 \n\t"
"cmp %3, %0 \n\t"
"jb 1b \n\t"
: "+r" (ptr)
: "r" ((x86_reg) wrap), "r" ((x86_reg) width),
"r" (ptr + wrap * height));
}
/* top and bottom (and hopefully also the corners) */
if (sides & EDGE_TOP) {
for (i = 0; i < h; i += 4) {
ptr = buf - (i + 1) * wrap - w;
__asm__ volatile (
"1: \n\t"
"movq (%1, %0), %%mm0 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm0, (%0, %2) \n\t"
"movq %%mm0, (%0, %2, 2) \n\t"
"movq %%mm0, (%0, %3) \n\t"
"add $8, %0 \n\t"
"cmp %4, %0 \n\t"
"jb 1b \n\t"
: "+r" (ptr)
: "r" ((x86_reg) buf - (x86_reg) ptr - w),
"r" ((x86_reg) - wrap), "r" ((x86_reg) - wrap * 3),
"r" (ptr + width + 2 * w));
}
}
if (sides & EDGE_BOTTOM) {
for (i = 0; i < h; i += 4) {
ptr = last_line + (i + 1) * wrap - w;
__asm__ volatile (
"1: \n\t"
"movq (%1, %0), %%mm0 \n\t"
"movq %%mm0, (%0) \n\t"
"movq %%mm0, (%0, %2) \n\t"
"movq %%mm0, (%0, %2, 2) \n\t"
"movq %%mm0, (%0, %3) \n\t"
"add $8, %0 \n\t"
"cmp %4, %0 \n\t"
"jb 1b \n\t"
: "+r" (ptr)
: "r" ((x86_reg) last_line - (x86_reg) ptr - w),
"r" ((x86_reg) wrap), "r" ((x86_reg) wrap * 3),
"r" (ptr + width + 2 * w));
}
}
}
void ff_gmc_mmx(uint8_t *dst, uint8_t *src,
int stride, int h, int ox, int oy,
int dxx, int dxy, int dyx, int dyy,
int shift, int r, int width, int height)
{
const int w = 8;
const int ix = ox >> (16 + shift);
const int iy = oy >> (16 + shift);
const int oxs = ox >> 4;
const int oys = oy >> 4;
const int dxxs = dxx >> 4;
const int dxys = dxy >> 4;
const int dyxs = dyx >> 4;
const int dyys = dyy >> 4;
const uint16_t r4[4] = { r, r, r, r };
const uint16_t dxy4[4] = { dxys, dxys, dxys, dxys };
const uint16_t dyy4[4] = { dyys, dyys, dyys, dyys };
const uint64_t shift2 = 2 * shift;
int x, y;
const int dxw = (dxx - (1 << (16 + shift))) * (w - 1);
const int dyh = (dyy - (1 << (16 + shift))) * (h - 1);
const int dxh = dxy * (h - 1);
const int dyw = dyx * (w - 1);
if ( // non-constant fullpel offset (3% of blocks)
((ox ^ (ox + dxw)) | (ox ^ (ox + dxh)) | (ox ^ (ox + dxw + dxh)) |
(oy ^ (oy + dyw)) | (oy ^ (oy + dyh)) | (oy ^ (oy + dyw + dyh))) >> (16 + shift) ||
// uses more than 16 bits of subpel mv (only at huge resolution)
(dxx | dxy | dyx | dyy) & 15 ||
(unsigned) ix >= width - w ||
(unsigned) iy >= height - h) {
// FIXME could still use mmx for some of the rows
ff_gmc_c(dst, src, stride, h, ox, oy, dxx, dxy, dyx, dyy,
shift, r, width, height);
return;
}
src += ix + iy * stride;
__asm__ volatile (
"movd %0, %%mm6 \n\t"
"pxor %%mm7, %%mm7 \n\t"
"punpcklwd %%mm6, %%mm6 \n\t"
"punpcklwd %%mm6, %%mm6 \n\t"
:: "r" (1 << shift));
for (x = 0; x < w; x += 4) {
uint16_t dx4[4] = { oxs - dxys + dxxs * (x + 0),
oxs - dxys + dxxs * (x + 1),
oxs - dxys + dxxs * (x + 2),
oxs - dxys + dxxs * (x + 3) };
uint16_t dy4[4] = { oys - dyys + dyxs * (x + 0),
oys - dyys + dyxs * (x + 1),
oys - dyys + dyxs * (x + 2),
oys - dyys + dyxs * (x + 3) };
for (y = 0; y < h; y++) {
__asm__ volatile (
"movq %0, %%mm4 \n\t"
"movq %1, %%mm5 \n\t"
"paddw %2, %%mm4 \n\t"
"paddw %3, %%mm5 \n\t"
"movq %%mm4, %0 \n\t"
"movq %%mm5, %1 \n\t"
"psrlw $12, %%mm4 \n\t"
"psrlw $12, %%mm5 \n\t"
: "+m" (*dx4), "+m" (*dy4)
: "m" (*dxy4), "m" (*dyy4));
__asm__ volatile (
"movq %%mm6, %%mm2 \n\t"
"movq %%mm6, %%mm1 \n\t"
"psubw %%mm4, %%mm2 \n\t"
"psubw %%mm5, %%mm1 \n\t"
"movq %%mm2, %%mm0 \n\t"
"movq %%mm4, %%mm3 \n\t"
"pmullw %%mm1, %%mm0 \n\t" // (s - dx) * (s - dy)
"pmullw %%mm5, %%mm3 \n\t" // dx * dy
"pmullw %%mm5, %%mm2 \n\t" // (s - dx) * dy
"pmullw %%mm4, %%mm1 \n\t" // dx * (s - dy)
"movd %4, %%mm5 \n\t"
"movd %3, %%mm4 \n\t"
"punpcklbw %%mm7, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t"
"pmullw %%mm5, %%mm3 \n\t" // src[1, 1] * dx * dy
"pmullw %%mm4, %%mm2 \n\t" // src[0, 1] * (s - dx) * dy
"movd %2, %%mm5 \n\t"
"movd %1, %%mm4 \n\t"
"punpcklbw %%mm7, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t"
"pmullw %%mm5, %%mm1 \n\t" // src[1, 0] * dx * (s - dy)
"pmullw %%mm4, %%mm0 \n\t" // src[0, 0] * (s - dx) * (s - dy)
"paddw %5, %%mm1 \n\t"
"paddw %%mm3, %%mm2 \n\t"
"paddw %%mm1, %%mm0 \n\t"
"paddw %%mm2, %%mm0 \n\t"
"psrlw %6, %%mm0 \n\t"
"packuswb %%mm0, %%mm0 \n\t"
"movd %%mm0, %0 \n\t"
: "=m" (dst[x + y * stride])
: "m" (src[0]), "m" (src[1]),
"m" (src[stride]), "m" (src[stride + 1]),
"m" (*r4), "m" (shift2));
src += stride;
}
src += 4 - h * stride;
}
}
void ff_vector_clipf_sse(float *dst, const float *src,
float min, float max, int len)
{
x86_reg i = (len - 16) * 4;
__asm__ volatile (
"movss %3, %%xmm4 \n\t"
"movss %4, %%xmm5 \n\t"
"shufps $0, %%xmm4, %%xmm4 \n\t"
"shufps $0, %%xmm5, %%xmm5 \n\t"
"1: \n\t"
"movaps (%2, %0), %%xmm0 \n\t" // 3/1 on intel
"movaps 16(%2, %0), %%xmm1 \n\t"
"movaps 32(%2, %0), %%xmm2 \n\t"
"movaps 48(%2, %0), %%xmm3 \n\t"
"maxps %%xmm4, %%xmm0 \n\t"
"maxps %%xmm4, %%xmm1 \n\t"
"maxps %%xmm4, %%xmm2 \n\t"
"maxps %%xmm4, %%xmm3 \n\t"
"minps %%xmm5, %%xmm0 \n\t"
"minps %%xmm5, %%xmm1 \n\t"
"minps %%xmm5, %%xmm2 \n\t"
"minps %%xmm5, %%xmm3 \n\t"
"movaps %%xmm0, (%1, %0) \n\t"
"movaps %%xmm1, 16(%1, %0) \n\t"
"movaps %%xmm2, 32(%1, %0) \n\t"
"movaps %%xmm3, 48(%1, %0) \n\t"
"sub $64, %0 \n\t"
"jge 1b \n\t"
: "+&r" (i)
: "r" (dst), "r" (src), "m" (min), "m" (max)
: "memory");
}
#endif /* HAVE_INLINE_ASM */
|
