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6148 serge 1
/*
2
 * Optimized for ia32 CPUs by Nick Kurshev 
3
 * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer 
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
 
22
#include "libavutil/attributes.h"
23
#include "libavutil/cpu.h"
24
#include "libavutil/x86/asm.h"
25
#include "libavutil/x86/cpu.h"
26
#include "libavcodec/avcodec.h"
27
#include "libavcodec/mpegvideo.h"
28
#include "dsputil_x86.h"
29
 
30
#if HAVE_MMX_INLINE
31
 
32
static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,
33
                                  int16_t *block, int n, int qscale)
34
{
35
    x86_reg level, qmul, qadd, nCoeffs;
36
 
37
    qmul = qscale << 1;
38
 
39
    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
40
 
41
    if (!s->h263_aic) {
42
        if (n < 4)
43
            level = block[0] * s->y_dc_scale;
44
        else
45
            level = block[0] * s->c_dc_scale;
46
        qadd = (qscale - 1) | 1;
47
    }else{
48
        qadd = 0;
49
        level= block[0];
50
    }
51
    if(s->ac_pred)
52
        nCoeffs=63;
53
    else
54
        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
55
 
56
__asm__ volatile(
57
                "movd %1, %%mm6                 \n\t" //qmul
58
                "packssdw %%mm6, %%mm6          \n\t"
59
                "packssdw %%mm6, %%mm6          \n\t"
60
                "movd %2, %%mm5                 \n\t" //qadd
61
                "pxor %%mm7, %%mm7              \n\t"
62
                "packssdw %%mm5, %%mm5          \n\t"
63
                "packssdw %%mm5, %%mm5          \n\t"
64
                "psubw %%mm5, %%mm7             \n\t"
65
                "pxor %%mm4, %%mm4              \n\t"
66
                ".p2align 4                     \n\t"
67
                "1:                             \n\t"
68
                "movq (%0, %3), %%mm0           \n\t"
69
                "movq 8(%0, %3), %%mm1          \n\t"
70
 
71
                "pmullw %%mm6, %%mm0            \n\t"
72
                "pmullw %%mm6, %%mm1            \n\t"
73
 
74
                "movq (%0, %3), %%mm2           \n\t"
75
                "movq 8(%0, %3), %%mm3          \n\t"
76
 
77
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
78
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
79
 
80
                "pxor %%mm2, %%mm0              \n\t"
81
                "pxor %%mm3, %%mm1              \n\t"
82
 
83
                "paddw %%mm7, %%mm0             \n\t"
84
                "paddw %%mm7, %%mm1             \n\t"
85
 
86
                "pxor %%mm0, %%mm2              \n\t"
87
                "pxor %%mm1, %%mm3              \n\t"
88
 
89
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
90
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
91
 
92
                "pandn %%mm2, %%mm0             \n\t"
93
                "pandn %%mm3, %%mm1             \n\t"
94
 
95
                "movq %%mm0, (%0, %3)           \n\t"
96
                "movq %%mm1, 8(%0, %3)          \n\t"
97
 
98
                "add $16, %3                    \n\t"
99
                "jng 1b                         \n\t"
100
                ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))
101
                : "memory"
102
        );
103
        block[0]= level;
104
}
105
 
106
 
107
static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,
108
                                  int16_t *block, int n, int qscale)
109
{
110
    x86_reg qmul, qadd, nCoeffs;
111
 
112
    qmul = qscale << 1;
113
    qadd = (qscale - 1) | 1;
114
 
115
    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
116
 
117
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
118
 
119
__asm__ volatile(
120
                "movd %1, %%mm6                 \n\t" //qmul
121
                "packssdw %%mm6, %%mm6          \n\t"
122
                "packssdw %%mm6, %%mm6          \n\t"
123
                "movd %2, %%mm5                 \n\t" //qadd
124
                "pxor %%mm7, %%mm7              \n\t"
125
                "packssdw %%mm5, %%mm5          \n\t"
126
                "packssdw %%mm5, %%mm5          \n\t"
127
                "psubw %%mm5, %%mm7             \n\t"
128
                "pxor %%mm4, %%mm4              \n\t"
129
                ".p2align 4                     \n\t"
130
                "1:                             \n\t"
131
                "movq (%0, %3), %%mm0           \n\t"
132
                "movq 8(%0, %3), %%mm1          \n\t"
133
 
134
                "pmullw %%mm6, %%mm0            \n\t"
135
                "pmullw %%mm6, %%mm1            \n\t"
136
 
137
                "movq (%0, %3), %%mm2           \n\t"
138
                "movq 8(%0, %3), %%mm3          \n\t"
139
 
140
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
141
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
142
 
143
                "pxor %%mm2, %%mm0              \n\t"
144
                "pxor %%mm3, %%mm1              \n\t"
145
 
146
                "paddw %%mm7, %%mm0             \n\t"
147
                "paddw %%mm7, %%mm1             \n\t"
148
 
149
                "pxor %%mm0, %%mm2              \n\t"
150
                "pxor %%mm1, %%mm3              \n\t"
151
 
152
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
153
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
154
 
155
                "pandn %%mm2, %%mm0             \n\t"
156
                "pandn %%mm3, %%mm1             \n\t"
157
 
158
                "movq %%mm0, (%0, %3)           \n\t"
159
                "movq %%mm1, 8(%0, %3)          \n\t"
160
 
161
                "add $16, %3                    \n\t"
162
                "jng 1b                         \n\t"
163
                ::"r" (block+nCoeffs), "rm"(qmul), "rm" (qadd), "r" (2*(-nCoeffs))
164
                : "memory"
165
        );
166
}
167
 
168
static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,
169
                                     int16_t *block, int n, int qscale)
170
{
171
    x86_reg nCoeffs;
172
    const uint16_t *quant_matrix;
173
    int block0;
174
 
175
    av_assert2(s->block_last_index[n]>=0);
176
 
177
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
178
 
179
    if (n < 4)
180
        block0 = block[0] * s->y_dc_scale;
181
    else
182
        block0 = block[0] * s->c_dc_scale;
183
    /* XXX: only mpeg1 */
184
    quant_matrix = s->intra_matrix;
185
__asm__ volatile(
186
                "pcmpeqw %%mm7, %%mm7           \n\t"
187
                "psrlw $15, %%mm7               \n\t"
188
                "movd %2, %%mm6                 \n\t"
189
                "packssdw %%mm6, %%mm6          \n\t"
190
                "packssdw %%mm6, %%mm6          \n\t"
191
                "mov %3, %%"REG_a"              \n\t"
192
                ".p2align 4                     \n\t"
193
                "1:                             \n\t"
194
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
195
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
196
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
197
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
198
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
199
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
200
                "pxor %%mm2, %%mm2              \n\t"
201
                "pxor %%mm3, %%mm3              \n\t"
202
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
203
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
204
                "pxor %%mm2, %%mm0              \n\t"
205
                "pxor %%mm3, %%mm1              \n\t"
206
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
207
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
208
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
209
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
210
                "pxor %%mm4, %%mm4              \n\t"
211
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
212
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
213
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
214
                "psraw $3, %%mm0                \n\t"
215
                "psraw $3, %%mm1                \n\t"
216
                "psubw %%mm7, %%mm0             \n\t"
217
                "psubw %%mm7, %%mm1             \n\t"
218
                "por %%mm7, %%mm0               \n\t"
219
                "por %%mm7, %%mm1               \n\t"
220
                "pxor %%mm2, %%mm0              \n\t"
221
                "pxor %%mm3, %%mm1              \n\t"
222
                "psubw %%mm2, %%mm0             \n\t"
223
                "psubw %%mm3, %%mm1             \n\t"
224
                "pandn %%mm0, %%mm4             \n\t"
225
                "pandn %%mm1, %%mm5             \n\t"
226
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
227
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
228
 
229
                "add $16, %%"REG_a"             \n\t"
230
                "js 1b                          \n\t"
231
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
232
                : "%"REG_a, "memory"
233
        );
234
    block[0]= block0;
235
}
236
 
237
static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,
238
                                     int16_t *block, int n, int qscale)
239
{
240
    x86_reg nCoeffs;
241
    const uint16_t *quant_matrix;
242
 
243
    av_assert2(s->block_last_index[n]>=0);
244
 
245
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
246
 
247
        quant_matrix = s->inter_matrix;
248
__asm__ volatile(
249
                "pcmpeqw %%mm7, %%mm7           \n\t"
250
                "psrlw $15, %%mm7               \n\t"
251
                "movd %2, %%mm6                 \n\t"
252
                "packssdw %%mm6, %%mm6          \n\t"
253
                "packssdw %%mm6, %%mm6          \n\t"
254
                "mov %3, %%"REG_a"              \n\t"
255
                ".p2align 4                     \n\t"
256
                "1:                             \n\t"
257
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
258
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
259
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
260
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
261
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
262
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
263
                "pxor %%mm2, %%mm2              \n\t"
264
                "pxor %%mm3, %%mm3              \n\t"
265
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
266
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
267
                "pxor %%mm2, %%mm0              \n\t"
268
                "pxor %%mm3, %%mm1              \n\t"
269
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
270
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
271
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
272
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
273
                "paddw %%mm7, %%mm0             \n\t" // abs(block[i])*2 + 1
274
                "paddw %%mm7, %%mm1             \n\t" // abs(block[i])*2 + 1
275
                "pmullw %%mm4, %%mm0            \n\t" // (abs(block[i])*2 + 1)*q
276
                "pmullw %%mm5, %%mm1            \n\t" // (abs(block[i])*2 + 1)*q
277
                "pxor %%mm4, %%mm4              \n\t"
278
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
279
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
280
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
281
                "psraw $4, %%mm0                \n\t"
282
                "psraw $4, %%mm1                \n\t"
283
                "psubw %%mm7, %%mm0             \n\t"
284
                "psubw %%mm7, %%mm1             \n\t"
285
                "por %%mm7, %%mm0               \n\t"
286
                "por %%mm7, %%mm1               \n\t"
287
                "pxor %%mm2, %%mm0              \n\t"
288
                "pxor %%mm3, %%mm1              \n\t"
289
                "psubw %%mm2, %%mm0             \n\t"
290
                "psubw %%mm3, %%mm1             \n\t"
291
                "pandn %%mm0, %%mm4             \n\t"
292
                "pandn %%mm1, %%mm5             \n\t"
293
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
294
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
295
 
296
                "add $16, %%"REG_a"             \n\t"
297
                "js 1b                          \n\t"
298
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
299
                : "%"REG_a, "memory"
300
        );
301
}
302
 
303
static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,
304
                                     int16_t *block, int n, int qscale)
305
{
306
    x86_reg nCoeffs;
307
    const uint16_t *quant_matrix;
308
    int block0;
309
 
310
    av_assert2(s->block_last_index[n]>=0);
311
 
312
    if(s->alternate_scan) nCoeffs= 63; //FIXME
313
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
314
 
315
    if (n < 4)
316
        block0 = block[0] * s->y_dc_scale;
317
    else
318
        block0 = block[0] * s->c_dc_scale;
319
    quant_matrix = s->intra_matrix;
320
__asm__ volatile(
321
                "pcmpeqw %%mm7, %%mm7           \n\t"
322
                "psrlw $15, %%mm7               \n\t"
323
                "movd %2, %%mm6                 \n\t"
324
                "packssdw %%mm6, %%mm6          \n\t"
325
                "packssdw %%mm6, %%mm6          \n\t"
326
                "mov %3, %%"REG_a"              \n\t"
327
                ".p2align 4                     \n\t"
328
                "1:                             \n\t"
329
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
330
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
331
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
332
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
333
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
334
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
335
                "pxor %%mm2, %%mm2              \n\t"
336
                "pxor %%mm3, %%mm3              \n\t"
337
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
338
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
339
                "pxor %%mm2, %%mm0              \n\t"
340
                "pxor %%mm3, %%mm1              \n\t"
341
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
342
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
343
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
344
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
345
                "pxor %%mm4, %%mm4              \n\t"
346
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
347
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
348
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
349
                "psraw $3, %%mm0                \n\t"
350
                "psraw $3, %%mm1                \n\t"
351
                "pxor %%mm2, %%mm0              \n\t"
352
                "pxor %%mm3, %%mm1              \n\t"
353
                "psubw %%mm2, %%mm0             \n\t"
354
                "psubw %%mm3, %%mm1             \n\t"
355
                "pandn %%mm0, %%mm4             \n\t"
356
                "pandn %%mm1, %%mm5             \n\t"
357
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
358
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
359
 
360
                "add $16, %%"REG_a"             \n\t"
361
                "jng 1b                         \n\t"
362
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "g" (-2*nCoeffs)
363
                : "%"REG_a, "memory"
364
        );
365
    block[0]= block0;
366
        //Note, we do not do mismatch control for intra as errors cannot accumulate
367
}
368
 
369
static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,
370
                                     int16_t *block, int n, int qscale)
371
{
372
    x86_reg nCoeffs;
373
    const uint16_t *quant_matrix;
374
 
375
    av_assert2(s->block_last_index[n]>=0);
376
 
377
    if(s->alternate_scan) nCoeffs= 63; //FIXME
378
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
379
 
380
        quant_matrix = s->inter_matrix;
381
__asm__ volatile(
382
                "pcmpeqw %%mm7, %%mm7           \n\t"
383
                "psrlq $48, %%mm7               \n\t"
384
                "movd %2, %%mm6                 \n\t"
385
                "packssdw %%mm6, %%mm6          \n\t"
386
                "packssdw %%mm6, %%mm6          \n\t"
387
                "mov %3, %%"REG_a"              \n\t"
388
                ".p2align 4                     \n\t"
389
                "1:                             \n\t"
390
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
391
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
392
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
393
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
394
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
395
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
396
                "pxor %%mm2, %%mm2              \n\t"
397
                "pxor %%mm3, %%mm3              \n\t"
398
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
399
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
400
                "pxor %%mm2, %%mm0              \n\t"
401
                "pxor %%mm3, %%mm1              \n\t"
402
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
403
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
404
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
405
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
406
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*2*q
407
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*2*q
408
                "paddw %%mm4, %%mm0             \n\t" // (abs(block[i])*2 + 1)*q
409
                "paddw %%mm5, %%mm1             \n\t" // (abs(block[i])*2 + 1)*q
410
                "pxor %%mm4, %%mm4              \n\t"
411
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
412
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
413
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
414
                "psrlw $4, %%mm0                \n\t"
415
                "psrlw $4, %%mm1                \n\t"
416
                "pxor %%mm2, %%mm0              \n\t"
417
                "pxor %%mm3, %%mm1              \n\t"
418
                "psubw %%mm2, %%mm0             \n\t"
419
                "psubw %%mm3, %%mm1             \n\t"
420
                "pandn %%mm0, %%mm4             \n\t"
421
                "pandn %%mm1, %%mm5             \n\t"
422
                "pxor %%mm4, %%mm7              \n\t"
423
                "pxor %%mm5, %%mm7              \n\t"
424
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
425
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
426
 
427
                "add $16, %%"REG_a"             \n\t"
428
                "jng 1b                         \n\t"
429
                "movd 124(%0, %3), %%mm0        \n\t"
430
                "movq %%mm7, %%mm6              \n\t"
431
                "psrlq $32, %%mm7               \n\t"
432
                "pxor %%mm6, %%mm7              \n\t"
433
                "movq %%mm7, %%mm6              \n\t"
434
                "psrlq $16, %%mm7               \n\t"
435
                "pxor %%mm6, %%mm7              \n\t"
436
                "pslld $31, %%mm7               \n\t"
437
                "psrlq $15, %%mm7               \n\t"
438
                "pxor %%mm7, %%mm0              \n\t"
439
                "movd %%mm0, 124(%0, %3)        \n\t"
440
 
441
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "rm" (qscale), "r" (-2*nCoeffs)
442
                : "%"REG_a, "memory"
443
        );
444
}
445
 
446
static void  denoise_dct_mmx(MpegEncContext *s, int16_t *block){
447
    const int intra= s->mb_intra;
448
    int *sum= s->dct_error_sum[intra];
449
    uint16_t *offset= s->dct_offset[intra];
450
 
451
    s->dct_count[intra]++;
452
 
453
    __asm__ volatile(
454
        "pxor %%mm7, %%mm7                      \n\t"
455
        "1:                                     \n\t"
456
        "pxor %%mm0, %%mm0                      \n\t"
457
        "pxor %%mm1, %%mm1                      \n\t"
458
        "movq (%0), %%mm2                       \n\t"
459
        "movq 8(%0), %%mm3                      \n\t"
460
        "pcmpgtw %%mm2, %%mm0                   \n\t"
461
        "pcmpgtw %%mm3, %%mm1                   \n\t"
462
        "pxor %%mm0, %%mm2                      \n\t"
463
        "pxor %%mm1, %%mm3                      \n\t"
464
        "psubw %%mm0, %%mm2                     \n\t"
465
        "psubw %%mm1, %%mm3                     \n\t"
466
        "movq %%mm2, %%mm4                      \n\t"
467
        "movq %%mm3, %%mm5                      \n\t"
468
        "psubusw (%2), %%mm2                    \n\t"
469
        "psubusw 8(%2), %%mm3                   \n\t"
470
        "pxor %%mm0, %%mm2                      \n\t"
471
        "pxor %%mm1, %%mm3                      \n\t"
472
        "psubw %%mm0, %%mm2                     \n\t"
473
        "psubw %%mm1, %%mm3                     \n\t"
474
        "movq %%mm2, (%0)                       \n\t"
475
        "movq %%mm3, 8(%0)                      \n\t"
476
        "movq %%mm4, %%mm2                      \n\t"
477
        "movq %%mm5, %%mm3                      \n\t"
478
        "punpcklwd %%mm7, %%mm4                 \n\t"
479
        "punpckhwd %%mm7, %%mm2                 \n\t"
480
        "punpcklwd %%mm7, %%mm5                 \n\t"
481
        "punpckhwd %%mm7, %%mm3                 \n\t"
482
        "paddd (%1), %%mm4                      \n\t"
483
        "paddd 8(%1), %%mm2                     \n\t"
484
        "paddd 16(%1), %%mm5                    \n\t"
485
        "paddd 24(%1), %%mm3                    \n\t"
486
        "movq %%mm4, (%1)                       \n\t"
487
        "movq %%mm2, 8(%1)                      \n\t"
488
        "movq %%mm5, 16(%1)                     \n\t"
489
        "movq %%mm3, 24(%1)                     \n\t"
490
        "add $16, %0                            \n\t"
491
        "add $32, %1                            \n\t"
492
        "add $16, %2                            \n\t"
493
        "cmp %3, %0                             \n\t"
494
            " jb 1b                             \n\t"
495
        : "+r" (block), "+r" (sum), "+r" (offset)
496
        : "r"(block+64)
497
    );
498
}
499
 
500
static void  denoise_dct_sse2(MpegEncContext *s, int16_t *block){
501
    const int intra= s->mb_intra;
502
    int *sum= s->dct_error_sum[intra];
503
    uint16_t *offset= s->dct_offset[intra];
504
 
505
    s->dct_count[intra]++;
506
 
507
    __asm__ volatile(
508
        "pxor %%xmm7, %%xmm7                    \n\t"
509
        "1:                                     \n\t"
510
        "pxor %%xmm0, %%xmm0                    \n\t"
511
        "pxor %%xmm1, %%xmm1                    \n\t"
512
        "movdqa (%0), %%xmm2                    \n\t"
513
        "movdqa 16(%0), %%xmm3                  \n\t"
514
        "pcmpgtw %%xmm2, %%xmm0                 \n\t"
515
        "pcmpgtw %%xmm3, %%xmm1                 \n\t"
516
        "pxor %%xmm0, %%xmm2                    \n\t"
517
        "pxor %%xmm1, %%xmm3                    \n\t"
518
        "psubw %%xmm0, %%xmm2                   \n\t"
519
        "psubw %%xmm1, %%xmm3                   \n\t"
520
        "movdqa %%xmm2, %%xmm4                  \n\t"
521
        "movdqa %%xmm3, %%xmm5                  \n\t"
522
        "psubusw (%2), %%xmm2                   \n\t"
523
        "psubusw 16(%2), %%xmm3                 \n\t"
524
        "pxor %%xmm0, %%xmm2                    \n\t"
525
        "pxor %%xmm1, %%xmm3                    \n\t"
526
        "psubw %%xmm0, %%xmm2                   \n\t"
527
        "psubw %%xmm1, %%xmm3                   \n\t"
528
        "movdqa %%xmm2, (%0)                    \n\t"
529
        "movdqa %%xmm3, 16(%0)                  \n\t"
530
        "movdqa %%xmm4, %%xmm6                  \n\t"
531
        "movdqa %%xmm5, %%xmm0                  \n\t"
532
        "punpcklwd %%xmm7, %%xmm4               \n\t"
533
        "punpckhwd %%xmm7, %%xmm6               \n\t"
534
        "punpcklwd %%xmm7, %%xmm5               \n\t"
535
        "punpckhwd %%xmm7, %%xmm0               \n\t"
536
        "paddd (%1), %%xmm4                     \n\t"
537
        "paddd 16(%1), %%xmm6                   \n\t"
538
        "paddd 32(%1), %%xmm5                   \n\t"
539
        "paddd 48(%1), %%xmm0                   \n\t"
540
        "movdqa %%xmm4, (%1)                    \n\t"
541
        "movdqa %%xmm6, 16(%1)                  \n\t"
542
        "movdqa %%xmm5, 32(%1)                  \n\t"
543
        "movdqa %%xmm0, 48(%1)                  \n\t"
544
        "add $32, %0                            \n\t"
545
        "add $64, %1                            \n\t"
546
        "add $32, %2                            \n\t"
547
        "cmp %3, %0                             \n\t"
548
            " jb 1b                             \n\t"
549
        : "+r" (block), "+r" (sum), "+r" (offset)
550
        : "r"(block+64)
551
          XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
552
                            "%xmm4", "%xmm5", "%xmm6", "%xmm7")
553
    );
554
}
555
 
556
#endif /* HAVE_MMX_INLINE */
557
 
558
av_cold void ff_MPV_common_init_x86(MpegEncContext *s)
559
{
560
#if HAVE_MMX_INLINE
561
    int cpu_flags = av_get_cpu_flags();
562
 
563
    if (INLINE_MMX(cpu_flags)) {
564
        s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;
565
        s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;
566
        s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;
567
        s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;
568
        if(!(s->flags & CODEC_FLAG_BITEXACT))
569
            s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;
570
        s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;
571
        s->denoise_dct = denoise_dct_mmx;
572
    }
573
    if (INLINE_SSE2(cpu_flags)) {
574
        s->denoise_dct = denoise_dct_sse2;
575
    }
576
#endif /* HAVE_MMX_INLINE */
577
}