Statistics
| Branch: | Revision:

ffmpeg / libavcodec / i386 / mpegvideo_mmx.c @ 755bfeab

History | View | Annotate | Download (31.3 KB)

1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard.
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 *
21
 * Optimized for ia32 cpus by Nick Kurshev <nickols_k@mail.ru>
22
 * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at>
23
 */
24

    
25
#include "dsputil.h"
26
#include "mpegvideo.h"
27
#include "avcodec.h"
28
#include "x86_cpu.h"
29

    
30
extern uint16_t inv_zigzag_direct16[64];
31

    
32
static const unsigned long long int mm_wabs __attribute__ ((aligned(8))) = 0xffffffffffffffffULL;
33
static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
34

    
35

    
36
static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,
37
                                  DCTELEM *block, int n, int qscale)
38
{
39
    long level, qmul, qadd, nCoeffs;
40

    
41
    qmul = qscale << 1;
42

    
43
    assert(s->block_last_index[n]>=0 || s->h263_aic);
44

    
45
    if (!s->h263_aic) {
46
        if (n < 4)
47
            level = block[0] * s->y_dc_scale;
48
        else
49
            level = block[0] * s->c_dc_scale;
50
        qadd = (qscale - 1) | 1;
51
    }else{
52
        qadd = 0;
53
        level= block[0];
54
    }
55
    if(s->ac_pred)
56
        nCoeffs=63;
57
    else
58
        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
59
//printf("%d %d  ", qmul, qadd);
60
asm volatile(
61
                "movd %1, %%mm6                 \n\t" //qmul
62
                "packssdw %%mm6, %%mm6          \n\t"
63
                "packssdw %%mm6, %%mm6          \n\t"
64
                "movd %2, %%mm5                 \n\t" //qadd
65
                "pxor %%mm7, %%mm7              \n\t"
66
                "packssdw %%mm5, %%mm5          \n\t"
67
                "packssdw %%mm5, %%mm5          \n\t"
68
                "psubw %%mm5, %%mm7             \n\t"
69
                "pxor %%mm4, %%mm4              \n\t"
70
                ASMALIGN(4)
71
                "1:                             \n\t"
72
                "movq (%0, %3), %%mm0           \n\t"
73
                "movq 8(%0, %3), %%mm1          \n\t"
74

    
75
                "pmullw %%mm6, %%mm0            \n\t"
76
                "pmullw %%mm6, %%mm1            \n\t"
77

    
78
                "movq (%0, %3), %%mm2           \n\t"
79
                "movq 8(%0, %3), %%mm3          \n\t"
80

    
81
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
82
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
83

    
84
                "pxor %%mm2, %%mm0              \n\t"
85
                "pxor %%mm3, %%mm1              \n\t"
86

    
87
                "paddw %%mm7, %%mm0             \n\t"
88
                "paddw %%mm7, %%mm1             \n\t"
89

    
90
                "pxor %%mm0, %%mm2              \n\t"
91
                "pxor %%mm1, %%mm3              \n\t"
92

    
93
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
94
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
95

    
96
                "pandn %%mm2, %%mm0             \n\t"
97
                "pandn %%mm3, %%mm1             \n\t"
98

    
99
                "movq %%mm0, (%0, %3)           \n\t"
100
                "movq %%mm1, 8(%0, %3)          \n\t"
101

    
102
                "add $16, %3                    \n\t"
103
                "jng 1b                         \n\t"
104
                ::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))
105
                : "memory"
106
        );
107
        block[0]= level;
108
}
109

    
110

    
111
static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,
112
                                  DCTELEM *block, int n, int qscale)
113
{
114
    long qmul, qadd, nCoeffs;
115

    
116
    qmul = qscale << 1;
117
    qadd = (qscale - 1) | 1;
118

    
119
    assert(s->block_last_index[n]>=0 || s->h263_aic);
120

    
121
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
122
//printf("%d %d  ", qmul, qadd);
123
asm volatile(
124
                "movd %1, %%mm6                 \n\t" //qmul
125
                "packssdw %%mm6, %%mm6          \n\t"
126
                "packssdw %%mm6, %%mm6          \n\t"
127
                "movd %2, %%mm5                 \n\t" //qadd
128
                "pxor %%mm7, %%mm7              \n\t"
129
                "packssdw %%mm5, %%mm5          \n\t"
130
                "packssdw %%mm5, %%mm5          \n\t"
131
                "psubw %%mm5, %%mm7             \n\t"
132
                "pxor %%mm4, %%mm4              \n\t"
133
                ASMALIGN(4)
134
                "1:                             \n\t"
135
                "movq (%0, %3), %%mm0           \n\t"
136
                "movq 8(%0, %3), %%mm1          \n\t"
137

    
138
                "pmullw %%mm6, %%mm0            \n\t"
139
                "pmullw %%mm6, %%mm1            \n\t"
140

    
141
                "movq (%0, %3), %%mm2           \n\t"
142
                "movq 8(%0, %3), %%mm3          \n\t"
143

    
144
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
145
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
146

    
147
                "pxor %%mm2, %%mm0              \n\t"
148
                "pxor %%mm3, %%mm1              \n\t"
149

    
150
                "paddw %%mm7, %%mm0             \n\t"
151
                "paddw %%mm7, %%mm1             \n\t"
152

    
153
                "pxor %%mm0, %%mm2              \n\t"
154
                "pxor %%mm1, %%mm3              \n\t"
155

    
156
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
157
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
158

    
159
                "pandn %%mm2, %%mm0             \n\t"
160
                "pandn %%mm3, %%mm1             \n\t"
161

    
162
                "movq %%mm0, (%0, %3)           \n\t"
163
                "movq %%mm1, 8(%0, %3)          \n\t"
164

    
165
                "add $16, %3                    \n\t"
166
                "jng 1b                         \n\t"
167
                ::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))
168
                : "memory"
169
        );
170
}
171

    
172

    
173
/*
174
  NK:
175
  Note: looking at PARANOID:
176
  "enable all paranoid tests for rounding, overflows, etc..."
177

178
#ifdef PARANOID
179
                if (level < -2048 || level > 2047)
180
                    fprintf(stderr, "unquant error %d %d\n", i, level);
181
#endif
182
  We can suppose that result of two multiplications can't be greate of 0xFFFF
183
  i.e. is 16-bit, so we use here only PMULLW instruction and can avoid
184
  a complex multiplication.
185
=====================================================
186
 Full formula for multiplication of 2 integer numbers
187
 which are represent as high:low words:
188
 input: value1 = high1:low1
189
        value2 = high2:low2
190
 output: value3 = value1*value2
191
 value3=high3:low3 (on overflow: modulus 2^32 wrap-around)
192
 this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4
193
 but this algorithm will compute only 0x66cb0ce4
194
 this limited by 16-bit size of operands
195
 ---------------------------------
196
 tlow1 = high1*low2
197
 tlow2 = high2*low1
198
 tlow1 = tlow1 + tlow2
199
 high3:low3 = low1*low2
200
 high3 += tlow1
201
*/
202
static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,
203
                                     DCTELEM *block, int n, int qscale)
204
{
205
    long nCoeffs;
206
    const uint16_t *quant_matrix;
207
    int block0;
208

    
209
    assert(s->block_last_index[n]>=0);
210

    
211
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
212

    
213
    if (n < 4)
214
        block0 = block[0] * s->y_dc_scale;
215
    else
216
        block0 = block[0] * s->c_dc_scale;
217
    /* XXX: only mpeg1 */
218
    quant_matrix = s->intra_matrix;
219
asm volatile(
220
                "pcmpeqw %%mm7, %%mm7           \n\t"
221
                "psrlw $15, %%mm7               \n\t"
222
                "movd %2, %%mm6                 \n\t"
223
                "packssdw %%mm6, %%mm6          \n\t"
224
                "packssdw %%mm6, %%mm6          \n\t"
225
                "mov %3, %%"REG_a"              \n\t"
226
                ASMALIGN(4)
227
                "1:                             \n\t"
228
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
229
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
230
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
231
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
232
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
233
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
234
                "pxor %%mm2, %%mm2              \n\t"
235
                "pxor %%mm3, %%mm3              \n\t"
236
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
237
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
238
                "pxor %%mm2, %%mm0              \n\t"
239
                "pxor %%mm3, %%mm1              \n\t"
240
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
241
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
242
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
243
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
244
                "pxor %%mm4, %%mm4              \n\t"
245
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
246
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
247
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
248
                "psraw $3, %%mm0                \n\t"
249
                "psraw $3, %%mm1                \n\t"
250
                "psubw %%mm7, %%mm0             \n\t"
251
                "psubw %%mm7, %%mm1             \n\t"
252
                "por %%mm7, %%mm0               \n\t"
253
                "por %%mm7, %%mm1               \n\t"
254
                "pxor %%mm2, %%mm0              \n\t"
255
                "pxor %%mm3, %%mm1              \n\t"
256
                "psubw %%mm2, %%mm0             \n\t"
257
                "psubw %%mm3, %%mm1             \n\t"
258
                "pandn %%mm0, %%mm4             \n\t"
259
                "pandn %%mm1, %%mm5             \n\t"
260
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
261
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
262

    
263
                "add $16, %%"REG_a"             \n\t"
264
                "js 1b                          \n\t"
265
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
266
                : "%"REG_a, "memory"
267
        );
268
    block[0]= block0;
269
}
270

    
271
static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,
272
                                     DCTELEM *block, int n, int qscale)
273
{
274
    long nCoeffs;
275
    const uint16_t *quant_matrix;
276

    
277
    assert(s->block_last_index[n]>=0);
278

    
279
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
280

    
281
        quant_matrix = s->inter_matrix;
282
asm volatile(
283
                "pcmpeqw %%mm7, %%mm7           \n\t"
284
                "psrlw $15, %%mm7               \n\t"
285
                "movd %2, %%mm6                 \n\t"
286
                "packssdw %%mm6, %%mm6          \n\t"
287
                "packssdw %%mm6, %%mm6          \n\t"
288
                "mov %3, %%"REG_a"              \n\t"
289
                ASMALIGN(4)
290
                "1:                             \n\t"
291
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
292
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
293
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
294
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
295
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
296
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
297
                "pxor %%mm2, %%mm2              \n\t"
298
                "pxor %%mm3, %%mm3              \n\t"
299
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
300
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
301
                "pxor %%mm2, %%mm0              \n\t"
302
                "pxor %%mm3, %%mm1              \n\t"
303
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
304
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
305
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
306
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
307
                "paddw %%mm7, %%mm0             \n\t" // abs(block[i])*2 + 1
308
                "paddw %%mm7, %%mm1             \n\t" // abs(block[i])*2 + 1
309
                "pmullw %%mm4, %%mm0            \n\t" // (abs(block[i])*2 + 1)*q
310
                "pmullw %%mm5, %%mm1            \n\t" // (abs(block[i])*2 + 1)*q
311
                "pxor %%mm4, %%mm4              \n\t"
312
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
313
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
314
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
315
                "psraw $4, %%mm0                \n\t"
316
                "psraw $4, %%mm1                \n\t"
317
                "psubw %%mm7, %%mm0             \n\t"
318
                "psubw %%mm7, %%mm1             \n\t"
319
                "por %%mm7, %%mm0               \n\t"
320
                "por %%mm7, %%mm1               \n\t"
321
                "pxor %%mm2, %%mm0              \n\t"
322
                "pxor %%mm3, %%mm1              \n\t"
323
                "psubw %%mm2, %%mm0             \n\t"
324
                "psubw %%mm3, %%mm1             \n\t"
325
                "pandn %%mm0, %%mm4             \n\t"
326
                "pandn %%mm1, %%mm5             \n\t"
327
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
328
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
329

    
330
                "add $16, %%"REG_a"             \n\t"
331
                "js 1b                          \n\t"
332
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
333
                : "%"REG_a, "memory"
334
        );
335
}
336

    
337
static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,
338
                                     DCTELEM *block, int n, int qscale)
339
{
340
    long nCoeffs;
341
    const uint16_t *quant_matrix;
342
    int block0;
343

    
344
    assert(s->block_last_index[n]>=0);
345

    
346
    if(s->alternate_scan) nCoeffs= 63; //FIXME
347
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
348

    
349
    if (n < 4)
350
        block0 = block[0] * s->y_dc_scale;
351
    else
352
        block0 = block[0] * s->c_dc_scale;
353
    quant_matrix = s->intra_matrix;
354
asm volatile(
355
                "pcmpeqw %%mm7, %%mm7           \n\t"
356
                "psrlw $15, %%mm7               \n\t"
357
                "movd %2, %%mm6                 \n\t"
358
                "packssdw %%mm6, %%mm6          \n\t"
359
                "packssdw %%mm6, %%mm6          \n\t"
360
                "mov %3, %%"REG_a"              \n\t"
361
                ASMALIGN(4)
362
                "1:                             \n\t"
363
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
364
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
365
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
366
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
367
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
368
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
369
                "pxor %%mm2, %%mm2              \n\t"
370
                "pxor %%mm3, %%mm3              \n\t"
371
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
372
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
373
                "pxor %%mm2, %%mm0              \n\t"
374
                "pxor %%mm3, %%mm1              \n\t"
375
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
376
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
377
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
378
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
379
                "pxor %%mm4, %%mm4              \n\t"
380
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
381
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
382
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
383
                "psraw $3, %%mm0                \n\t"
384
                "psraw $3, %%mm1                \n\t"
385
                "pxor %%mm2, %%mm0              \n\t"
386
                "pxor %%mm3, %%mm1              \n\t"
387
                "psubw %%mm2, %%mm0             \n\t"
388
                "psubw %%mm3, %%mm1             \n\t"
389
                "pandn %%mm0, %%mm4             \n\t"
390
                "pandn %%mm1, %%mm5             \n\t"
391
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
392
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
393

    
394
                "add $16, %%"REG_a"             \n\t"
395
                "jng 1b                         \n\t"
396
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
397
                : "%"REG_a, "memory"
398
        );
399
    block[0]= block0;
400
        //Note, we do not do mismatch control for intra as errors cannot accumulate
401
}
402

    
403
static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,
404
                                     DCTELEM *block, int n, int qscale)
405
{
406
    long nCoeffs;
407
    const uint16_t *quant_matrix;
408

    
409
    assert(s->block_last_index[n]>=0);
410

    
411
    if(s->alternate_scan) nCoeffs= 63; //FIXME
412
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
413

    
414
        quant_matrix = s->inter_matrix;
415
asm volatile(
416
                "pcmpeqw %%mm7, %%mm7           \n\t"
417
                "psrlq $48, %%mm7               \n\t"
418
                "movd %2, %%mm6                 \n\t"
419
                "packssdw %%mm6, %%mm6          \n\t"
420
                "packssdw %%mm6, %%mm6          \n\t"
421
                "mov %3, %%"REG_a"              \n\t"
422
                ASMALIGN(4)
423
                "1:                             \n\t"
424
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
425
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
426
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
427
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
428
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
429
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
430
                "pxor %%mm2, %%mm2              \n\t"
431
                "pxor %%mm3, %%mm3              \n\t"
432
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
433
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
434
                "pxor %%mm2, %%mm0              \n\t"
435
                "pxor %%mm3, %%mm1              \n\t"
436
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
437
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
438
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
439
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
440
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*2*q
441
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*2*q
442
                "paddw %%mm4, %%mm0             \n\t" // (abs(block[i])*2 + 1)*q
443
                "paddw %%mm5, %%mm1             \n\t" // (abs(block[i])*2 + 1)*q
444
                "pxor %%mm4, %%mm4              \n\t"
445
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
446
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
447
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
448
                "psrlw $4, %%mm0                \n\t"
449
                "psrlw $4, %%mm1                \n\t"
450
                "pxor %%mm2, %%mm0              \n\t"
451
                "pxor %%mm3, %%mm1              \n\t"
452
                "psubw %%mm2, %%mm0             \n\t"
453
                "psubw %%mm3, %%mm1             \n\t"
454
                "pandn %%mm0, %%mm4             \n\t"
455
                "pandn %%mm1, %%mm5             \n\t"
456
                "pxor %%mm4, %%mm7              \n\t"
457
                "pxor %%mm5, %%mm7              \n\t"
458
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
459
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
460

    
461
                "add $16, %%"REG_a"             \n\t"
462
                "jng 1b                         \n\t"
463
                "movd 124(%0, %3), %%mm0        \n\t"
464
                "movq %%mm7, %%mm6              \n\t"
465
                "psrlq $32, %%mm7               \n\t"
466
                "pxor %%mm6, %%mm7              \n\t"
467
                "movq %%mm7, %%mm6              \n\t"
468
                "psrlq $16, %%mm7               \n\t"
469
                "pxor %%mm6, %%mm7              \n\t"
470
                "pslld $31, %%mm7               \n\t"
471
                "psrlq $15, %%mm7               \n\t"
472
                "pxor %%mm7, %%mm0              \n\t"
473
                "movd %%mm0, 124(%0, %3)        \n\t"
474

    
475
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "r" (-2*nCoeffs)
476
                : "%"REG_a, "memory"
477
        );
478
}
479

    
480
/* draw the edges of width 'w' of an image of size width, height
481
   this mmx version can only handle w==8 || w==16 */
482
static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w)
483
{
484
    uint8_t *ptr, *last_line;
485
    int i;
486

    
487
    last_line = buf + (height - 1) * wrap;
488
    /* left and right */
489
    ptr = buf;
490
    if(w==8)
491
    {
492
        asm volatile(
493
                "1:                             \n\t"
494
                "movd (%0), %%mm0               \n\t"
495
                "punpcklbw %%mm0, %%mm0         \n\t"
496
                "punpcklwd %%mm0, %%mm0         \n\t"
497
                "punpckldq %%mm0, %%mm0         \n\t"
498
                "movq %%mm0, -8(%0)             \n\t"
499
                "movq -8(%0, %2), %%mm1         \n\t"
500
                "punpckhbw %%mm1, %%mm1         \n\t"
501
                "punpckhwd %%mm1, %%mm1         \n\t"
502
                "punpckhdq %%mm1, %%mm1         \n\t"
503
                "movq %%mm1, (%0, %2)           \n\t"
504
                "add %1, %0                     \n\t"
505
                "cmp %3, %0                     \n\t"
506
                " jb 1b                         \n\t"
507
                : "+r" (ptr)
508
                : "r" ((long)wrap), "r" ((long)width), "r" (ptr + wrap*height)
509
        );
510
    }
511
    else
512
    {
513
        asm volatile(
514
                "1:                             \n\t"
515
                "movd (%0), %%mm0               \n\t"
516
                "punpcklbw %%mm0, %%mm0         \n\t"
517
                "punpcklwd %%mm0, %%mm0         \n\t"
518
                "punpckldq %%mm0, %%mm0         \n\t"
519
                "movq %%mm0, -8(%0)             \n\t"
520
                "movq %%mm0, -16(%0)            \n\t"
521
                "movq -8(%0, %2), %%mm1         \n\t"
522
                "punpckhbw %%mm1, %%mm1         \n\t"
523
                "punpckhwd %%mm1, %%mm1         \n\t"
524
                "punpckhdq %%mm1, %%mm1         \n\t"
525
                "movq %%mm1, (%0, %2)           \n\t"
526
                "movq %%mm1, 8(%0, %2)          \n\t"
527
                "add %1, %0                     \n\t"
528
                "cmp %3, %0                     \n\t"
529
                " jb 1b                         \n\t"
530
                : "+r" (ptr)
531
                : "r" ((long)wrap), "r" ((long)width), "r" (ptr + wrap*height)
532
        );
533
    }
534

    
535
    for(i=0;i<w;i+=4) {
536
        /* top and bottom (and hopefully also the corners) */
537
        ptr= buf - (i + 1) * wrap - w;
538
        asm volatile(
539
                "1:                             \n\t"
540
                "movq (%1, %0), %%mm0           \n\t"
541
                "movq %%mm0, (%0)               \n\t"
542
                "movq %%mm0, (%0, %2)           \n\t"
543
                "movq %%mm0, (%0, %2, 2)        \n\t"
544
                "movq %%mm0, (%0, %3)           \n\t"
545
                "add $8, %0                     \n\t"
546
                "cmp %4, %0                     \n\t"
547
                " jb 1b                         \n\t"
548
                : "+r" (ptr)
549
                : "r" ((long)buf - (long)ptr - w), "r" ((long)-wrap), "r" ((long)-wrap*3), "r" (ptr+width+2*w)
550
        );
551
        ptr= last_line + (i + 1) * wrap - w;
552
        asm volatile(
553
                "1:                             \n\t"
554
                "movq (%1, %0), %%mm0           \n\t"
555
                "movq %%mm0, (%0)               \n\t"
556
                "movq %%mm0, (%0, %2)           \n\t"
557
                "movq %%mm0, (%0, %2, 2)        \n\t"
558
                "movq %%mm0, (%0, %3)           \n\t"
559
                "add $8, %0                     \n\t"
560
                "cmp %4, %0                     \n\t"
561
                " jb 1b                         \n\t"
562
                : "+r" (ptr)
563
                : "r" ((long)last_line - (long)ptr - w), "r" ((long)wrap), "r" ((long)wrap*3), "r" (ptr+width+2*w)
564
        );
565
    }
566
}
567

    
568
static void  denoise_dct_mmx(MpegEncContext *s, DCTELEM *block){
569
    const int intra= s->mb_intra;
570
    int *sum= s->dct_error_sum[intra];
571
    uint16_t *offset= s->dct_offset[intra];
572

    
573
    s->dct_count[intra]++;
574

    
575
    asm volatile(
576
        "pxor %%mm7, %%mm7                      \n\t"
577
        "1:                                     \n\t"
578
        "pxor %%mm0, %%mm0                      \n\t"
579
        "pxor %%mm1, %%mm1                      \n\t"
580
        "movq (%0), %%mm2                       \n\t"
581
        "movq 8(%0), %%mm3                      \n\t"
582
        "pcmpgtw %%mm2, %%mm0                   \n\t"
583
        "pcmpgtw %%mm3, %%mm1                   \n\t"
584
        "pxor %%mm0, %%mm2                      \n\t"
585
        "pxor %%mm1, %%mm3                      \n\t"
586
        "psubw %%mm0, %%mm2                     \n\t"
587
        "psubw %%mm1, %%mm3                     \n\t"
588
        "movq %%mm2, %%mm4                      \n\t"
589
        "movq %%mm3, %%mm5                      \n\t"
590
        "psubusw (%2), %%mm2                    \n\t"
591
        "psubusw 8(%2), %%mm3                   \n\t"
592
        "pxor %%mm0, %%mm2                      \n\t"
593
        "pxor %%mm1, %%mm3                      \n\t"
594
        "psubw %%mm0, %%mm2                     \n\t"
595
        "psubw %%mm1, %%mm3                     \n\t"
596
        "movq %%mm2, (%0)                       \n\t"
597
        "movq %%mm3, 8(%0)                      \n\t"
598
        "movq %%mm4, %%mm2                      \n\t"
599
        "movq %%mm5, %%mm3                      \n\t"
600
        "punpcklwd %%mm7, %%mm4                 \n\t"
601
        "punpckhwd %%mm7, %%mm2                 \n\t"
602
        "punpcklwd %%mm7, %%mm5                 \n\t"
603
        "punpckhwd %%mm7, %%mm3                 \n\t"
604
        "paddd (%1), %%mm4                      \n\t"
605
        "paddd 8(%1), %%mm2                     \n\t"
606
        "paddd 16(%1), %%mm5                    \n\t"
607
        "paddd 24(%1), %%mm3                    \n\t"
608
        "movq %%mm4, (%1)                       \n\t"
609
        "movq %%mm2, 8(%1)                      \n\t"
610
        "movq %%mm5, 16(%1)                     \n\t"
611
        "movq %%mm3, 24(%1)                     \n\t"
612
        "add $16, %0                            \n\t"
613
        "add $32, %1                            \n\t"
614
        "add $16, %2                            \n\t"
615
        "cmp %3, %0                             \n\t"
616
            " jb 1b                             \n\t"
617
        : "+r" (block), "+r" (sum), "+r" (offset)
618
        : "r"(block+64)
619
    );
620
}
621

    
622
static void  denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
623
    const int intra= s->mb_intra;
624
    int *sum= s->dct_error_sum[intra];
625
    uint16_t *offset= s->dct_offset[intra];
626

    
627
    s->dct_count[intra]++;
628

    
629
    asm volatile(
630
        "pxor %%xmm7, %%xmm7                    \n\t"
631
        "1:                                     \n\t"
632
        "pxor %%xmm0, %%xmm0                    \n\t"
633
        "pxor %%xmm1, %%xmm1                    \n\t"
634
        "movdqa (%0), %%xmm2                    \n\t"
635
        "movdqa 16(%0), %%xmm3                  \n\t"
636
        "pcmpgtw %%xmm2, %%xmm0                 \n\t"
637
        "pcmpgtw %%xmm3, %%xmm1                 \n\t"
638
        "pxor %%xmm0, %%xmm2                    \n\t"
639
        "pxor %%xmm1, %%xmm3                    \n\t"
640
        "psubw %%xmm0, %%xmm2                   \n\t"
641
        "psubw %%xmm1, %%xmm3                   \n\t"
642
        "movdqa %%xmm2, %%xmm4                  \n\t"
643
        "movdqa %%xmm3, %%xmm5                  \n\t"
644
        "psubusw (%2), %%xmm2                   \n\t"
645
        "psubusw 16(%2), %%xmm3                 \n\t"
646
        "pxor %%xmm0, %%xmm2                    \n\t"
647
        "pxor %%xmm1, %%xmm3                    \n\t"
648
        "psubw %%xmm0, %%xmm2                   \n\t"
649
        "psubw %%xmm1, %%xmm3                   \n\t"
650
        "movdqa %%xmm2, (%0)                    \n\t"
651
        "movdqa %%xmm3, 16(%0)                  \n\t"
652
        "movdqa %%xmm4, %%xmm6                  \n\t"
653
        "movdqa %%xmm5, %%xmm0                  \n\t"
654
        "punpcklwd %%xmm7, %%xmm4               \n\t"
655
        "punpckhwd %%xmm7, %%xmm6               \n\t"
656
        "punpcklwd %%xmm7, %%xmm5               \n\t"
657
        "punpckhwd %%xmm7, %%xmm0               \n\t"
658
        "paddd (%1), %%xmm4                     \n\t"
659
        "paddd 16(%1), %%xmm6                   \n\t"
660
        "paddd 32(%1), %%xmm5                   \n\t"
661
        "paddd 48(%1), %%xmm0                   \n\t"
662
        "movdqa %%xmm4, (%1)                    \n\t"
663
        "movdqa %%xmm6, 16(%1)                  \n\t"
664
        "movdqa %%xmm5, 32(%1)                  \n\t"
665
        "movdqa %%xmm0, 48(%1)                  \n\t"
666
        "add $32, %0                            \n\t"
667
        "add $64, %1                            \n\t"
668
        "add $32, %2                            \n\t"
669
        "cmp %3, %0                             \n\t"
670
            " jb 1b                             \n\t"
671
        : "+r" (block), "+r" (sum), "+r" (offset)
672
        : "r"(block+64)
673
    );
674
}
675

    
676
#ifdef HAVE_SSSE3
677
#define HAVE_SSSE3_BAK
678
#endif
679
#undef HAVE_SSSE3
680

    
681
#undef HAVE_SSE2
682
#undef HAVE_MMX2
683
#define RENAME(a) a ## _MMX
684
#define RENAMEl(a) a ## _mmx
685
#include "mpegvideo_mmx_template.c"
686

    
687
#define HAVE_MMX2
688
#undef RENAME
689
#undef RENAMEl
690
#define RENAME(a) a ## _MMX2
691
#define RENAMEl(a) a ## _mmx2
692
#include "mpegvideo_mmx_template.c"
693

    
694
#define HAVE_SSE2
695
#undef RENAME
696
#undef RENAMEl
697
#define RENAME(a) a ## _SSE2
698
#define RENAMEl(a) a ## _sse2
699
#include "mpegvideo_mmx_template.c"
700

    
701
#ifdef HAVE_SSSE3_BAK
702
#define HAVE_SSSE3
703
#undef RENAME
704
#undef RENAMEl
705
#define RENAME(a) a ## _SSSE3
706
#define RENAMEl(a) a ## _sse2
707
#include "mpegvideo_mmx_template.c"
708
#endif
709

    
710
void MPV_common_init_mmx(MpegEncContext *s)
711
{
712
    if (mm_flags & MM_MMX) {
713
        const int dct_algo = s->avctx->dct_algo;
714

    
715
        s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;
716
        s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;
717
        s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;
718
        s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;
719
        if(!(s->flags & CODEC_FLAG_BITEXACT))
720
            s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;
721
        s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;
722

    
723
        draw_edges = draw_edges_mmx;
724

    
725
        if (mm_flags & MM_SSE2) {
726
            s->denoise_dct= denoise_dct_sse2;
727
        } else {
728
                s->denoise_dct= denoise_dct_mmx;
729
        }
730

    
731
        if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
732
#ifdef HAVE_SSSE3
733
            if(mm_flags & MM_SSSE3){
734
                s->dct_quantize= dct_quantize_SSSE3;
735
            } else
736
#endif
737
            if(mm_flags & MM_SSE2){
738
                s->dct_quantize= dct_quantize_SSE2;
739
            } else if(mm_flags & MM_MMXEXT){
740
                s->dct_quantize= dct_quantize_MMX2;
741
            } else {
742
                s->dct_quantize= dct_quantize_MMX;
743
            }
744
        }
745
    }
746
}