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ffmpeg / libavcodec / i386 / mpegvideo_mmx.c @ 182f56cb

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

    
25
#include "dsputil.h"
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#include "dsputil_mmx.h"
27
#include "mpegvideo.h"
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#include "avcodec.h"
29
#include "x86_cpu.h"
30

    
31
extern uint16_t inv_zigzag_direct16[64];
32

    
33

    
34
static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,
35
                                  DCTELEM *block, int n, int qscale)
36
{
37
    long level, qmul, qadd, nCoeffs;
38

    
39
    qmul = qscale << 1;
40

    
41
    assert(s->block_last_index[n]>=0 || s->h263_aic);
42

    
43
    if (!s->h263_aic) {
44
        if (n < 4)
45
            level = block[0] * s->y_dc_scale;
46
        else
47
            level = block[0] * s->c_dc_scale;
48
        qadd = (qscale - 1) | 1;
49
    }else{
50
        qadd = 0;
51
        level= block[0];
52
    }
53
    if(s->ac_pred)
54
        nCoeffs=63;
55
    else
56
        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
57
//printf("%d %d  ", qmul, qadd);
58
asm volatile(
59
                "movd %1, %%mm6                 \n\t" //qmul
60
                "packssdw %%mm6, %%mm6          \n\t"
61
                "packssdw %%mm6, %%mm6          \n\t"
62
                "movd %2, %%mm5                 \n\t" //qadd
63
                "pxor %%mm7, %%mm7              \n\t"
64
                "packssdw %%mm5, %%mm5          \n\t"
65
                "packssdw %%mm5, %%mm5          \n\t"
66
                "psubw %%mm5, %%mm7             \n\t"
67
                "pxor %%mm4, %%mm4              \n\t"
68
                ASMALIGN(4)
69
                "1:                             \n\t"
70
                "movq (%0, %3), %%mm0           \n\t"
71
                "movq 8(%0, %3), %%mm1          \n\t"
72

    
73
                "pmullw %%mm6, %%mm0            \n\t"
74
                "pmullw %%mm6, %%mm1            \n\t"
75

    
76
                "movq (%0, %3), %%mm2           \n\t"
77
                "movq 8(%0, %3), %%mm3          \n\t"
78

    
79
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
80
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
81

    
82
                "pxor %%mm2, %%mm0              \n\t"
83
                "pxor %%mm3, %%mm1              \n\t"
84

    
85
                "paddw %%mm7, %%mm0             \n\t"
86
                "paddw %%mm7, %%mm1             \n\t"
87

    
88
                "pxor %%mm0, %%mm2              \n\t"
89
                "pxor %%mm1, %%mm3              \n\t"
90

    
91
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
92
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
93

    
94
                "pandn %%mm2, %%mm0             \n\t"
95
                "pandn %%mm3, %%mm1             \n\t"
96

    
97
                "movq %%mm0, (%0, %3)           \n\t"
98
                "movq %%mm1, 8(%0, %3)          \n\t"
99

    
100
                "add $16, %3                    \n\t"
101
                "jng 1b                         \n\t"
102
                ::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))
103
                : "memory"
104
        );
105
        block[0]= level;
106
}
107

    
108

    
109
static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,
110
                                  DCTELEM *block, int n, int qscale)
111
{
112
    long qmul, qadd, nCoeffs;
113

    
114
    qmul = qscale << 1;
115
    qadd = (qscale - 1) | 1;
116

    
117
    assert(s->block_last_index[n]>=0 || s->h263_aic);
118

    
119
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
120
//printf("%d %d  ", qmul, qadd);
121
asm volatile(
122
                "movd %1, %%mm6                 \n\t" //qmul
123
                "packssdw %%mm6, %%mm6          \n\t"
124
                "packssdw %%mm6, %%mm6          \n\t"
125
                "movd %2, %%mm5                 \n\t" //qadd
126
                "pxor %%mm7, %%mm7              \n\t"
127
                "packssdw %%mm5, %%mm5          \n\t"
128
                "packssdw %%mm5, %%mm5          \n\t"
129
                "psubw %%mm5, %%mm7             \n\t"
130
                "pxor %%mm4, %%mm4              \n\t"
131
                ASMALIGN(4)
132
                "1:                             \n\t"
133
                "movq (%0, %3), %%mm0           \n\t"
134
                "movq 8(%0, %3), %%mm1          \n\t"
135

    
136
                "pmullw %%mm6, %%mm0            \n\t"
137
                "pmullw %%mm6, %%mm1            \n\t"
138

    
139
                "movq (%0, %3), %%mm2           \n\t"
140
                "movq 8(%0, %3), %%mm3          \n\t"
141

    
142
                "pcmpgtw %%mm4, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
143
                "pcmpgtw %%mm4, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
144

    
145
                "pxor %%mm2, %%mm0              \n\t"
146
                "pxor %%mm3, %%mm1              \n\t"
147

    
148
                "paddw %%mm7, %%mm0             \n\t"
149
                "paddw %%mm7, %%mm1             \n\t"
150

    
151
                "pxor %%mm0, %%mm2              \n\t"
152
                "pxor %%mm1, %%mm3              \n\t"
153

    
154
                "pcmpeqw %%mm7, %%mm0           \n\t" // block[i] == 0 ? -1 : 0
155
                "pcmpeqw %%mm7, %%mm1           \n\t" // block[i] == 0 ? -1 : 0
156

    
157
                "pandn %%mm2, %%mm0             \n\t"
158
                "pandn %%mm3, %%mm1             \n\t"
159

    
160
                "movq %%mm0, (%0, %3)           \n\t"
161
                "movq %%mm1, 8(%0, %3)          \n\t"
162

    
163
                "add $16, %3                    \n\t"
164
                "jng 1b                         \n\t"
165
                ::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))
166
                : "memory"
167
        );
168
}
169

    
170

    
171
/*
172
  NK:
173
  Note: looking at PARANOID:
174
  "enable all paranoid tests for rounding, overflows, etc..."
175

176
#ifdef PARANOID
177
                if (level < -2048 || level > 2047)
178
                    fprintf(stderr, "unquant error %d %d\n", i, level);
179
#endif
180
  We can suppose that result of two multiplications can't be greate of 0xFFFF
181
  i.e. is 16-bit, so we use here only PMULLW instruction and can avoid
182
  a complex multiplication.
183
=====================================================
184
 Full formula for multiplication of 2 integer numbers
185
 which are represent as high:low words:
186
 input: value1 = high1:low1
187
        value2 = high2:low2
188
 output: value3 = value1*value2
189
 value3=high3:low3 (on overflow: modulus 2^32 wrap-around)
190
 this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4
191
 but this algorithm will compute only 0x66cb0ce4
192
 this limited by 16-bit size of operands
193
 ---------------------------------
194
 tlow1 = high1*low2
195
 tlow2 = high2*low1
196
 tlow1 = tlow1 + tlow2
197
 high3:low3 = low1*low2
198
 high3 += tlow1
199
*/
200
static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,
201
                                     DCTELEM *block, int n, int qscale)
202
{
203
    long nCoeffs;
204
    const uint16_t *quant_matrix;
205
    int block0;
206

    
207
    assert(s->block_last_index[n]>=0);
208

    
209
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
210

    
211
    if (n < 4)
212
        block0 = block[0] * s->y_dc_scale;
213
    else
214
        block0 = block[0] * s->c_dc_scale;
215
    /* XXX: only mpeg1 */
216
    quant_matrix = s->intra_matrix;
217
asm volatile(
218
                "pcmpeqw %%mm7, %%mm7           \n\t"
219
                "psrlw $15, %%mm7               \n\t"
220
                "movd %2, %%mm6                 \n\t"
221
                "packssdw %%mm6, %%mm6          \n\t"
222
                "packssdw %%mm6, %%mm6          \n\t"
223
                "mov %3, %%"REG_a"              \n\t"
224
                ASMALIGN(4)
225
                "1:                             \n\t"
226
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
227
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
228
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
229
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
230
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
231
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
232
                "pxor %%mm2, %%mm2              \n\t"
233
                "pxor %%mm3, %%mm3              \n\t"
234
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
235
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
236
                "pxor %%mm2, %%mm0              \n\t"
237
                "pxor %%mm3, %%mm1              \n\t"
238
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
239
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
240
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
241
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
242
                "pxor %%mm4, %%mm4              \n\t"
243
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
244
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
245
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
246
                "psraw $3, %%mm0                \n\t"
247
                "psraw $3, %%mm1                \n\t"
248
                "psubw %%mm7, %%mm0             \n\t"
249
                "psubw %%mm7, %%mm1             \n\t"
250
                "por %%mm7, %%mm0               \n\t"
251
                "por %%mm7, %%mm1               \n\t"
252
                "pxor %%mm2, %%mm0              \n\t"
253
                "pxor %%mm3, %%mm1              \n\t"
254
                "psubw %%mm2, %%mm0             \n\t"
255
                "psubw %%mm3, %%mm1             \n\t"
256
                "pandn %%mm0, %%mm4             \n\t"
257
                "pandn %%mm1, %%mm5             \n\t"
258
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
259
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
260

    
261
                "add $16, %%"REG_a"             \n\t"
262
                "js 1b                          \n\t"
263
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
264
                : "%"REG_a, "memory"
265
        );
266
    block[0]= block0;
267
}
268

    
269
static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,
270
                                     DCTELEM *block, int n, int qscale)
271
{
272
    long nCoeffs;
273
    const uint16_t *quant_matrix;
274

    
275
    assert(s->block_last_index[n]>=0);
276

    
277
    nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;
278

    
279
        quant_matrix = s->inter_matrix;
280
asm volatile(
281
                "pcmpeqw %%mm7, %%mm7           \n\t"
282
                "psrlw $15, %%mm7               \n\t"
283
                "movd %2, %%mm6                 \n\t"
284
                "packssdw %%mm6, %%mm6          \n\t"
285
                "packssdw %%mm6, %%mm6          \n\t"
286
                "mov %3, %%"REG_a"              \n\t"
287
                ASMALIGN(4)
288
                "1:                             \n\t"
289
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
290
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
291
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
292
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
293
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
294
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
295
                "pxor %%mm2, %%mm2              \n\t"
296
                "pxor %%mm3, %%mm3              \n\t"
297
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
298
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
299
                "pxor %%mm2, %%mm0              \n\t"
300
                "pxor %%mm3, %%mm1              \n\t"
301
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
302
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
303
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
304
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
305
                "paddw %%mm7, %%mm0             \n\t" // abs(block[i])*2 + 1
306
                "paddw %%mm7, %%mm1             \n\t" // abs(block[i])*2 + 1
307
                "pmullw %%mm4, %%mm0            \n\t" // (abs(block[i])*2 + 1)*q
308
                "pmullw %%mm5, %%mm1            \n\t" // (abs(block[i])*2 + 1)*q
309
                "pxor %%mm4, %%mm4              \n\t"
310
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
311
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
312
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
313
                "psraw $4, %%mm0                \n\t"
314
                "psraw $4, %%mm1                \n\t"
315
                "psubw %%mm7, %%mm0             \n\t"
316
                "psubw %%mm7, %%mm1             \n\t"
317
                "por %%mm7, %%mm0               \n\t"
318
                "por %%mm7, %%mm1               \n\t"
319
                "pxor %%mm2, %%mm0              \n\t"
320
                "pxor %%mm3, %%mm1              \n\t"
321
                "psubw %%mm2, %%mm0             \n\t"
322
                "psubw %%mm3, %%mm1             \n\t"
323
                "pandn %%mm0, %%mm4             \n\t"
324
                "pandn %%mm1, %%mm5             \n\t"
325
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
326
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
327

    
328
                "add $16, %%"REG_a"             \n\t"
329
                "js 1b                          \n\t"
330
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
331
                : "%"REG_a, "memory"
332
        );
333
}
334

    
335
static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,
336
                                     DCTELEM *block, int n, int qscale)
337
{
338
    long nCoeffs;
339
    const uint16_t *quant_matrix;
340
    int block0;
341

    
342
    assert(s->block_last_index[n]>=0);
343

    
344
    if(s->alternate_scan) nCoeffs= 63; //FIXME
345
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
346

    
347
    if (n < 4)
348
        block0 = block[0] * s->y_dc_scale;
349
    else
350
        block0 = block[0] * s->c_dc_scale;
351
    quant_matrix = s->intra_matrix;
352
asm volatile(
353
                "pcmpeqw %%mm7, %%mm7           \n\t"
354
                "psrlw $15, %%mm7               \n\t"
355
                "movd %2, %%mm6                 \n\t"
356
                "packssdw %%mm6, %%mm6          \n\t"
357
                "packssdw %%mm6, %%mm6          \n\t"
358
                "mov %3, %%"REG_a"              \n\t"
359
                ASMALIGN(4)
360
                "1:                             \n\t"
361
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
362
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
363
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
364
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
365
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
366
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
367
                "pxor %%mm2, %%mm2              \n\t"
368
                "pxor %%mm3, %%mm3              \n\t"
369
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
370
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
371
                "pxor %%mm2, %%mm0              \n\t"
372
                "pxor %%mm3, %%mm1              \n\t"
373
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
374
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
375
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*q
376
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*q
377
                "pxor %%mm4, %%mm4              \n\t"
378
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
379
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
380
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
381
                "psraw $3, %%mm0                \n\t"
382
                "psraw $3, %%mm1                \n\t"
383
                "pxor %%mm2, %%mm0              \n\t"
384
                "pxor %%mm3, %%mm1              \n\t"
385
                "psubw %%mm2, %%mm0             \n\t"
386
                "psubw %%mm3, %%mm1             \n\t"
387
                "pandn %%mm0, %%mm4             \n\t"
388
                "pandn %%mm1, %%mm5             \n\t"
389
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
390
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
391

    
392
                "add $16, %%"REG_a"             \n\t"
393
                "jng 1b                         \n\t"
394
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)
395
                : "%"REG_a, "memory"
396
        );
397
    block[0]= block0;
398
        //Note, we do not do mismatch control for intra as errors cannot accumulate
399
}
400

    
401
static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,
402
                                     DCTELEM *block, int n, int qscale)
403
{
404
    long nCoeffs;
405
    const uint16_t *quant_matrix;
406

    
407
    assert(s->block_last_index[n]>=0);
408

    
409
    if(s->alternate_scan) nCoeffs= 63; //FIXME
410
    else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
411

    
412
        quant_matrix = s->inter_matrix;
413
asm volatile(
414
                "pcmpeqw %%mm7, %%mm7           \n\t"
415
                "psrlq $48, %%mm7               \n\t"
416
                "movd %2, %%mm6                 \n\t"
417
                "packssdw %%mm6, %%mm6          \n\t"
418
                "packssdw %%mm6, %%mm6          \n\t"
419
                "mov %3, %%"REG_a"              \n\t"
420
                ASMALIGN(4)
421
                "1:                             \n\t"
422
                "movq (%0, %%"REG_a"), %%mm0    \n\t"
423
                "movq 8(%0, %%"REG_a"), %%mm1   \n\t"
424
                "movq (%1, %%"REG_a"), %%mm4    \n\t"
425
                "movq 8(%1, %%"REG_a"), %%mm5   \n\t"
426
                "pmullw %%mm6, %%mm4            \n\t" // q=qscale*quant_matrix[i]
427
                "pmullw %%mm6, %%mm5            \n\t" // q=qscale*quant_matrix[i]
428
                "pxor %%mm2, %%mm2              \n\t"
429
                "pxor %%mm3, %%mm3              \n\t"
430
                "pcmpgtw %%mm0, %%mm2           \n\t" // block[i] < 0 ? -1 : 0
431
                "pcmpgtw %%mm1, %%mm3           \n\t" // block[i] < 0 ? -1 : 0
432
                "pxor %%mm2, %%mm0              \n\t"
433
                "pxor %%mm3, %%mm1              \n\t"
434
                "psubw %%mm2, %%mm0             \n\t" // abs(block[i])
435
                "psubw %%mm3, %%mm1             \n\t" // abs(block[i])
436
                "paddw %%mm0, %%mm0             \n\t" // abs(block[i])*2
437
                "paddw %%mm1, %%mm1             \n\t" // abs(block[i])*2
438
                "pmullw %%mm4, %%mm0            \n\t" // abs(block[i])*2*q
439
                "pmullw %%mm5, %%mm1            \n\t" // abs(block[i])*2*q
440
                "paddw %%mm4, %%mm0             \n\t" // (abs(block[i])*2 + 1)*q
441
                "paddw %%mm5, %%mm1             \n\t" // (abs(block[i])*2 + 1)*q
442
                "pxor %%mm4, %%mm4              \n\t"
443
                "pxor %%mm5, %%mm5              \n\t" // FIXME slow
444
                "pcmpeqw (%0, %%"REG_a"), %%mm4 \n\t" // block[i] == 0 ? -1 : 0
445
                "pcmpeqw 8(%0, %%"REG_a"), %%mm5\n\t" // block[i] == 0 ? -1 : 0
446
                "psrlw $4, %%mm0                \n\t"
447
                "psrlw $4, %%mm1                \n\t"
448
                "pxor %%mm2, %%mm0              \n\t"
449
                "pxor %%mm3, %%mm1              \n\t"
450
                "psubw %%mm2, %%mm0             \n\t"
451
                "psubw %%mm3, %%mm1             \n\t"
452
                "pandn %%mm0, %%mm4             \n\t"
453
                "pandn %%mm1, %%mm5             \n\t"
454
                "pxor %%mm4, %%mm7              \n\t"
455
                "pxor %%mm5, %%mm7              \n\t"
456
                "movq %%mm4, (%0, %%"REG_a")    \n\t"
457
                "movq %%mm5, 8(%0, %%"REG_a")   \n\t"
458

    
459
                "add $16, %%"REG_a"             \n\t"
460
                "jng 1b                         \n\t"
461
                "movd 124(%0, %3), %%mm0        \n\t"
462
                "movq %%mm7, %%mm6              \n\t"
463
                "psrlq $32, %%mm7               \n\t"
464
                "pxor %%mm6, %%mm7              \n\t"
465
                "movq %%mm7, %%mm6              \n\t"
466
                "psrlq $16, %%mm7               \n\t"
467
                "pxor %%mm6, %%mm7              \n\t"
468
                "pslld $31, %%mm7               \n\t"
469
                "psrlq $15, %%mm7               \n\t"
470
                "pxor %%mm7, %%mm0              \n\t"
471
                "movd %%mm0, 124(%0, %3)        \n\t"
472

    
473
                ::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "r" (-2*nCoeffs)
474
                : "%"REG_a, "memory"
475
        );
476
}
477

    
478
/* draw the edges of width 'w' of an image of size width, height
479
   this mmx version can only handle w==8 || w==16 */
480
static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w)
481
{
482
    uint8_t *ptr, *last_line;
483
    int i;
484

    
485
    last_line = buf + (height - 1) * wrap;
486
    /* left and right */
487
    ptr = buf;
488
    if(w==8)
489
    {
490
        asm volatile(
491
                "1:                             \n\t"
492
                "movd (%0), %%mm0               \n\t"
493
                "punpcklbw %%mm0, %%mm0         \n\t"
494
                "punpcklwd %%mm0, %%mm0         \n\t"
495
                "punpckldq %%mm0, %%mm0         \n\t"
496
                "movq %%mm0, -8(%0)             \n\t"
497
                "movq -8(%0, %2), %%mm1         \n\t"
498
                "punpckhbw %%mm1, %%mm1         \n\t"
499
                "punpckhwd %%mm1, %%mm1         \n\t"
500
                "punpckhdq %%mm1, %%mm1         \n\t"
501
                "movq %%mm1, (%0, %2)           \n\t"
502
                "add %1, %0                     \n\t"
503
                "cmp %3, %0                     \n\t"
504
                " jb 1b                         \n\t"
505
                : "+r" (ptr)
506
                : "r" ((long)wrap), "r" ((long)width), "r" (ptr + wrap*height)
507
        );
508
    }
509
    else
510
    {
511
        asm volatile(
512
                "1:                             \n\t"
513
                "movd (%0), %%mm0               \n\t"
514
                "punpcklbw %%mm0, %%mm0         \n\t"
515
                "punpcklwd %%mm0, %%mm0         \n\t"
516
                "punpckldq %%mm0, %%mm0         \n\t"
517
                "movq %%mm0, -8(%0)             \n\t"
518
                "movq %%mm0, -16(%0)            \n\t"
519
                "movq -8(%0, %2), %%mm1         \n\t"
520
                "punpckhbw %%mm1, %%mm1         \n\t"
521
                "punpckhwd %%mm1, %%mm1         \n\t"
522
                "punpckhdq %%mm1, %%mm1         \n\t"
523
                "movq %%mm1, (%0, %2)           \n\t"
524
                "movq %%mm1, 8(%0, %2)          \n\t"
525
                "add %1, %0                     \n\t"
526
                "cmp %3, %0                     \n\t"
527
                " jb 1b                         \n\t"
528
                : "+r" (ptr)
529
                : "r" ((long)wrap), "r" ((long)width), "r" (ptr + wrap*height)
530
        );
531
    }
532

    
533
    for(i=0;i<w;i+=4) {
534
        /* top and bottom (and hopefully also the corners) */
535
        ptr= buf - (i + 1) * wrap - w;
536
        asm volatile(
537
                "1:                             \n\t"
538
                "movq (%1, %0), %%mm0           \n\t"
539
                "movq %%mm0, (%0)               \n\t"
540
                "movq %%mm0, (%0, %2)           \n\t"
541
                "movq %%mm0, (%0, %2, 2)        \n\t"
542
                "movq %%mm0, (%0, %3)           \n\t"
543
                "add $8, %0                     \n\t"
544
                "cmp %4, %0                     \n\t"
545
                " jb 1b                         \n\t"
546
                : "+r" (ptr)
547
                : "r" ((long)buf - (long)ptr - w), "r" ((long)-wrap), "r" ((long)-wrap*3), "r" (ptr+width+2*w)
548
        );
549
        ptr= last_line + (i + 1) * wrap - w;
550
        asm volatile(
551
                "1:                             \n\t"
552
                "movq (%1, %0), %%mm0           \n\t"
553
                "movq %%mm0, (%0)               \n\t"
554
                "movq %%mm0, (%0, %2)           \n\t"
555
                "movq %%mm0, (%0, %2, 2)        \n\t"
556
                "movq %%mm0, (%0, %3)           \n\t"
557
                "add $8, %0                     \n\t"
558
                "cmp %4, %0                     \n\t"
559
                " jb 1b                         \n\t"
560
                : "+r" (ptr)
561
                : "r" ((long)last_line - (long)ptr - w), "r" ((long)wrap), "r" ((long)wrap*3), "r" (ptr+width+2*w)
562
        );
563
    }
564
}
565

    
566
static void  denoise_dct_mmx(MpegEncContext *s, DCTELEM *block){
567
    const int intra= s->mb_intra;
568
    int *sum= s->dct_error_sum[intra];
569
    uint16_t *offset= s->dct_offset[intra];
570

    
571
    s->dct_count[intra]++;
572

    
573
    asm volatile(
574
        "pxor %%mm7, %%mm7                      \n\t"
575
        "1:                                     \n\t"
576
        "pxor %%mm0, %%mm0                      \n\t"
577
        "pxor %%mm1, %%mm1                      \n\t"
578
        "movq (%0), %%mm2                       \n\t"
579
        "movq 8(%0), %%mm3                      \n\t"
580
        "pcmpgtw %%mm2, %%mm0                   \n\t"
581
        "pcmpgtw %%mm3, %%mm1                   \n\t"
582
        "pxor %%mm0, %%mm2                      \n\t"
583
        "pxor %%mm1, %%mm3                      \n\t"
584
        "psubw %%mm0, %%mm2                     \n\t"
585
        "psubw %%mm1, %%mm3                     \n\t"
586
        "movq %%mm2, %%mm4                      \n\t"
587
        "movq %%mm3, %%mm5                      \n\t"
588
        "psubusw (%2), %%mm2                    \n\t"
589
        "psubusw 8(%2), %%mm3                   \n\t"
590
        "pxor %%mm0, %%mm2                      \n\t"
591
        "pxor %%mm1, %%mm3                      \n\t"
592
        "psubw %%mm0, %%mm2                     \n\t"
593
        "psubw %%mm1, %%mm3                     \n\t"
594
        "movq %%mm2, (%0)                       \n\t"
595
        "movq %%mm3, 8(%0)                      \n\t"
596
        "movq %%mm4, %%mm2                      \n\t"
597
        "movq %%mm5, %%mm3                      \n\t"
598
        "punpcklwd %%mm7, %%mm4                 \n\t"
599
        "punpckhwd %%mm7, %%mm2                 \n\t"
600
        "punpcklwd %%mm7, %%mm5                 \n\t"
601
        "punpckhwd %%mm7, %%mm3                 \n\t"
602
        "paddd (%1), %%mm4                      \n\t"
603
        "paddd 8(%1), %%mm2                     \n\t"
604
        "paddd 16(%1), %%mm5                    \n\t"
605
        "paddd 24(%1), %%mm3                    \n\t"
606
        "movq %%mm4, (%1)                       \n\t"
607
        "movq %%mm2, 8(%1)                      \n\t"
608
        "movq %%mm5, 16(%1)                     \n\t"
609
        "movq %%mm3, 24(%1)                     \n\t"
610
        "add $16, %0                            \n\t"
611
        "add $32, %1                            \n\t"
612
        "add $16, %2                            \n\t"
613
        "cmp %3, %0                             \n\t"
614
            " jb 1b                             \n\t"
615
        : "+r" (block), "+r" (sum), "+r" (offset)
616
        : "r"(block+64)
617
    );
618
}
619

    
620
static void  denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
621
    const int intra= s->mb_intra;
622
    int *sum= s->dct_error_sum[intra];
623
    uint16_t *offset= s->dct_offset[intra];
624

    
625
    s->dct_count[intra]++;
626

    
627
    asm volatile(
628
        "pxor %%xmm7, %%xmm7                    \n\t"
629
        "1:                                     \n\t"
630
        "pxor %%xmm0, %%xmm0                    \n\t"
631
        "pxor %%xmm1, %%xmm1                    \n\t"
632
        "movdqa (%0), %%xmm2                    \n\t"
633
        "movdqa 16(%0), %%xmm3                  \n\t"
634
        "pcmpgtw %%xmm2, %%xmm0                 \n\t"
635
        "pcmpgtw %%xmm3, %%xmm1                 \n\t"
636
        "pxor %%xmm0, %%xmm2                    \n\t"
637
        "pxor %%xmm1, %%xmm3                    \n\t"
638
        "psubw %%xmm0, %%xmm2                   \n\t"
639
        "psubw %%xmm1, %%xmm3                   \n\t"
640
        "movdqa %%xmm2, %%xmm4                  \n\t"
641
        "movdqa %%xmm3, %%xmm5                  \n\t"
642
        "psubusw (%2), %%xmm2                   \n\t"
643
        "psubusw 16(%2), %%xmm3                 \n\t"
644
        "pxor %%xmm0, %%xmm2                    \n\t"
645
        "pxor %%xmm1, %%xmm3                    \n\t"
646
        "psubw %%xmm0, %%xmm2                   \n\t"
647
        "psubw %%xmm1, %%xmm3                   \n\t"
648
        "movdqa %%xmm2, (%0)                    \n\t"
649
        "movdqa %%xmm3, 16(%0)                  \n\t"
650
        "movdqa %%xmm4, %%xmm6                  \n\t"
651
        "movdqa %%xmm5, %%xmm0                  \n\t"
652
        "punpcklwd %%xmm7, %%xmm4               \n\t"
653
        "punpckhwd %%xmm7, %%xmm6               \n\t"
654
        "punpcklwd %%xmm7, %%xmm5               \n\t"
655
        "punpckhwd %%xmm7, %%xmm0               \n\t"
656
        "paddd (%1), %%xmm4                     \n\t"
657
        "paddd 16(%1), %%xmm6                   \n\t"
658
        "paddd 32(%1), %%xmm5                   \n\t"
659
        "paddd 48(%1), %%xmm0                   \n\t"
660
        "movdqa %%xmm4, (%1)                    \n\t"
661
        "movdqa %%xmm6, 16(%1)                  \n\t"
662
        "movdqa %%xmm5, 32(%1)                  \n\t"
663
        "movdqa %%xmm0, 48(%1)                  \n\t"
664
        "add $32, %0                            \n\t"
665
        "add $64, %1                            \n\t"
666
        "add $32, %2                            \n\t"
667
        "cmp %3, %0                             \n\t"
668
            " jb 1b                             \n\t"
669
        : "+r" (block), "+r" (sum), "+r" (offset)
670
        : "r"(block+64)
671
    );
672
}
673

    
674
#ifdef HAVE_SSSE3
675
#define HAVE_SSSE3_BAK
676
#endif
677
#undef HAVE_SSSE3
678

    
679
#undef HAVE_SSE2
680
#undef HAVE_MMX2
681
#define RENAME(a) a ## _MMX
682
#define RENAMEl(a) a ## _mmx
683
#include "mpegvideo_mmx_template.c"
684

    
685
#define HAVE_MMX2
686
#undef RENAME
687
#undef RENAMEl
688
#define RENAME(a) a ## _MMX2
689
#define RENAMEl(a) a ## _mmx2
690
#include "mpegvideo_mmx_template.c"
691

    
692
#define HAVE_SSE2
693
#undef RENAME
694
#undef RENAMEl
695
#define RENAME(a) a ## _SSE2
696
#define RENAMEl(a) a ## _sse2
697
#include "mpegvideo_mmx_template.c"
698

    
699
#ifdef HAVE_SSSE3_BAK
700
#define HAVE_SSSE3
701
#undef RENAME
702
#undef RENAMEl
703
#define RENAME(a) a ## _SSSE3
704
#define RENAMEl(a) a ## _sse2
705
#include "mpegvideo_mmx_template.c"
706
#endif
707

    
708
void MPV_common_init_mmx(MpegEncContext *s)
709
{
710
    if (mm_flags & MM_MMX) {
711
        const int dct_algo = s->avctx->dct_algo;
712

    
713
        s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;
714
        s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;
715
        s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;
716
        s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;
717
        if(!(s->flags & CODEC_FLAG_BITEXACT))
718
            s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;
719
        s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;
720

    
721
        draw_edges = draw_edges_mmx;
722

    
723
        if (mm_flags & MM_SSE2) {
724
            s->denoise_dct= denoise_dct_sse2;
725
        } else {
726
                s->denoise_dct= denoise_dct_mmx;
727
        }
728

    
729
        if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
730
#ifdef HAVE_SSSE3
731
            if(mm_flags & MM_SSSE3){
732
                s->dct_quantize= dct_quantize_SSSE3;
733
            } else
734
#endif
735
            if(mm_flags & MM_SSE2){
736
                s->dct_quantize= dct_quantize_SSE2;
737
            } else if(mm_flags & MM_MMXEXT){
738
                s->dct_quantize= dct_quantize_MMX2;
739
            } else {
740
                s->dct_quantize= dct_quantize_MMX;
741
            }
742
        }
743
    }
744
}