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ffmpeg / libavcodec / x86 / fdct_mmx.c @ fbb6b49d

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1 694ec061 Fabrice Bellard
/*
2
 * MMX optimized forward DCT
3 ff4ec49e Fabrice Bellard
 * The gcc porting is Copyright (c) 2001 Fabrice Bellard.
4 8f2ab833 Michael Niedermayer
 * cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 8fd19ab2 Michael Niedermayer
 * SSE2 optimization is Copyright (c) 2004 Denes Balatoni.
6 694ec061 Fabrice Bellard
 *
7
 * from  fdctam32.c - AP922 MMX(3D-Now) forward-DCT
8 115329f1 Diego Biurrun
 *
9 694ec061 Fabrice Bellard
 *  Intel Application Note AP-922 - fast, precise implementation of DCT
10
 *        http://developer.intel.com/vtune/cbts/appnotes.htm
11 8fd19ab2 Michael Niedermayer
 *
12
 * Also of inspiration:
13
 * a page about fdct at http://www.geocities.com/ssavekar/dct.htm
14
 * Skal's fdct at http://skal.planet-d.net/coding/dct.html
15 04d7f601 Diego Biurrun
 *
16 b78e7197 Diego Biurrun
 * This file is part of FFmpeg.
17
 *
18
 * FFmpeg is free software; you can redistribute it and/or
19 04d7f601 Diego Biurrun
 * modify it under the terms of the GNU Lesser General Public
20
 * License as published by the Free Software Foundation; either
21 b78e7197 Diego Biurrun
 * version 2.1 of the License, or (at your option) any later version.
22 04d7f601 Diego Biurrun
 *
23 b78e7197 Diego Biurrun
 * FFmpeg is distributed in the hope that it will be useful,
24 04d7f601 Diego Biurrun
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
26
 * Lesser General Public License for more details.
27
 *
28
 * You should have received a copy of the GNU Lesser General Public
29 b78e7197 Diego Biurrun
 * License along with FFmpeg; if not, write to the Free Software
30 04d7f601 Diego Biurrun
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 694ec061 Fabrice Bellard
 */
32 245976da Diego Biurrun
33
#include "libavutil/common.h"
34 0d729e0d Ramiro Polla
#include "libavutil/x86_cpu.h"
35 245976da Diego Biurrun
#include "libavcodec/dsputil.h"
36 694ec061 Fabrice Bellard
37
//////////////////////////////////////////////////////////////////////
38
//
39
// constants for the forward DCT
40
// -----------------------------
41
//
42
// Be sure to check that your compiler is aligning all constants to QWORD
43
// (8-byte) memory boundaries!  Otherwise the unaligned memory access will
44
// severely stall MMX execution.
45
//
46
//////////////////////////////////////////////////////////////////////
47
48 bb270c08 Diego Biurrun
#define BITS_FRW_ACC   3 //; 2 or 3 for accuracy
49
#define SHIFT_FRW_COL  BITS_FRW_ACC
50
#define SHIFT_FRW_ROW  (BITS_FRW_ACC + 17 - 3)
51
#define RND_FRW_ROW    (1 << (SHIFT_FRW_ROW-1))
52
//#define RND_FRW_COL    (1 << (SHIFT_FRW_COL-1))
53 694ec061 Fabrice Bellard
54 7c3a9fe2 Loren Merritt
#define X8(x) x,x,x,x,x,x,x,x
55
56 694ec061 Fabrice Bellard
//concatenated table, for forward DCT transformation
57 d343d598 Måns Rullgård
DECLARE_ALIGNED(16, static const int16_t, fdct_tg_all_16)[24] = {
58 7c3a9fe2 Loren Merritt
    X8(13036),  // tg * (2<<16) + 0.5
59
    X8(27146),  // tg * (2<<16) + 0.5
60
    X8(-21746)  // tg * (2<<16) + 0.5
61 694ec061 Fabrice Bellard
};
62
63 d343d598 Måns Rullgård
DECLARE_ALIGNED(16, static const int16_t, ocos_4_16)[8] = {
64 7c3a9fe2 Loren Merritt
    X8(23170)   //cos * (2<<15) + 0.5
65 694ec061 Fabrice Bellard
};
66
67 d343d598 Måns Rullgård
DECLARE_ALIGNED(16, static const int16_t, fdct_one_corr)[8] = { X8(1) };
68 8fd19ab2 Michael Niedermayer
69 d343d598 Måns Rullgård
DECLARE_ALIGNED(8, static const int32_t, fdct_r_row)[2] = {RND_FRW_ROW, RND_FRW_ROW };
70 694ec061 Fabrice Bellard
71 bb54f6ab Måns Rullgård
static struct
72 19f82bc8 Michael Niedermayer
{
73 d343d598 Måns Rullgård
 DECLARE_ALIGNED(16, const int32_t, fdct_r_row_sse2)[4];
74
} fdct_r_row_sse2 =
75 19f82bc8 Michael Niedermayer
{{
76
 RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
77
}};
78 d343d598 Måns Rullgård
//DECLARE_ALIGNED(16, static const long, fdct_r_row_sse2)[4] = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
79 8fd19ab2 Michael Niedermayer
80 d343d598 Måns Rullgård
DECLARE_ALIGNED(8, static const int16_t, tab_frw_01234567)[] = {  // forward_dct coeff table
81 115329f1 Diego Biurrun
  16384,   16384,   22725,   19266,
82
  16384,   16384,   12873,    4520,
83
  21407,    8867,   19266,   -4520,
84
  -8867,  -21407,  -22725,  -12873,
85
  16384,  -16384,   12873,  -22725,
86
 -16384,   16384,    4520,   19266,
87
   8867,  -21407,    4520,  -12873,
88
  21407,   -8867,   19266,  -22725,
89
90
  22725,   22725,   31521,   26722,
91
  22725,   22725,   17855,    6270,
92
  29692,   12299,   26722,   -6270,
93
 -12299,  -29692,  -31521,  -17855,
94
  22725,  -22725,   17855,  -31521,
95
 -22725,   22725,    6270,   26722,
96
  12299,  -29692,    6270,  -17855,
97
  29692,  -12299,   26722,  -31521,
98
99
  21407,   21407,   29692,   25172,
100
  21407,   21407,   16819,    5906,
101
  27969,   11585,   25172,   -5906,
102
 -11585,  -27969,  -29692,  -16819,
103
  21407,  -21407,   16819,  -29692,
104
 -21407,   21407,    5906,   25172,
105
  11585,  -27969,    5906,  -16819,
106
  27969,  -11585,   25172,  -29692,
107
108
  19266,   19266,   26722,   22654,
109
  19266,   19266,   15137,    5315,
110
  25172,   10426,   22654,   -5315,
111
 -10426,  -25172,  -26722,  -15137,
112
  19266,  -19266,   15137,  -26722,
113
 -19266,   19266,    5315,   22654,
114
  10426,  -25172,    5315,  -15137,
115
  25172,  -10426,   22654,  -26722,
116
117
  16384,   16384,   22725,   19266,
118
  16384,   16384,   12873,    4520,
119
  21407,    8867,   19266,   -4520,
120
  -8867,  -21407,  -22725,  -12873,
121
  16384,  -16384,   12873,  -22725,
122
 -16384,   16384,    4520,   19266,
123
   8867,  -21407,    4520,  -12873,
124
  21407,   -8867,   19266,  -22725,
125
126
  19266,   19266,   26722,   22654,
127
  19266,   19266,   15137,    5315,
128
  25172,   10426,   22654,   -5315,
129
 -10426,  -25172,  -26722,  -15137,
130
  19266,  -19266,   15137,  -26722,
131
 -19266,   19266,    5315,   22654,
132
  10426,  -25172,    5315,  -15137,
133
  25172,  -10426,   22654,  -26722,
134
135
  21407,   21407,   29692,   25172,
136
  21407,   21407,   16819,    5906,
137
  27969,   11585,   25172,   -5906,
138
 -11585,  -27969,  -29692,  -16819,
139
  21407,  -21407,   16819,  -29692,
140
 -21407,   21407,    5906,   25172,
141
  11585,  -27969,    5906,  -16819,
142
  27969,  -11585,   25172,  -29692,
143
144
  22725,   22725,   31521,   26722,
145
  22725,   22725,   17855,    6270,
146
  29692,   12299,   26722,   -6270,
147
 -12299,  -29692,  -31521,  -17855,
148
  22725,  -22725,   17855,  -31521,
149
 -22725,   22725,    6270,   26722,
150
  12299,  -29692,    6270,  -17855,
151
  29692,  -12299,   26722,  -31521,
152 694ec061 Fabrice Bellard
};
153
154 bb54f6ab Måns Rullgård
static struct
155 19f82bc8 Michael Niedermayer
{
156 d343d598 Måns Rullgård
 DECLARE_ALIGNED(16, const int16_t, tab_frw_01234567_sse2)[256];
157
} tab_frw_01234567_sse2 =
158 19f82bc8 Michael Niedermayer
{{
159 d343d598 Måns Rullgård
//DECLARE_ALIGNED(16, static const int16_t, tab_frw_01234567_sse2)[] = {  // forward_dct coeff table
160 8fd19ab2 Michael Niedermayer
#define TABLE_SSE2 C4,  C4,  C1,  C3, -C6, -C2, -C1, -C5, \
161
                   C4,  C4,  C5,  C7,  C2,  C6,  C3, -C7, \
162
                  -C4,  C4,  C7,  C3,  C6, -C2,  C7, -C5, \
163 115329f1 Diego Biurrun
                   C4, -C4,  C5, -C1,  C2, -C6,  C3, -C1,
164
// c1..c7 * cos(pi/4) * 2^15
165 8fd19ab2 Michael Niedermayer
#define C1 22725
166
#define C2 21407
167
#define C3 19266
168
#define C4 16384
169
#define C5 12873
170
#define C6 8867
171
#define C7 4520
172
TABLE_SSE2
173
174
#undef C1
175
#undef C2
176
#undef C3
177
#undef C4
178
#undef C5
179
#undef C6
180
#undef C7
181
#define C1 31521
182
#define C2 29692
183
#define C3 26722
184
#define C4 22725
185
#define C5 17855
186
#define C6 12299
187
#define C7 6270
188
TABLE_SSE2
189
190
#undef C1
191
#undef C2
192
#undef C3
193
#undef C4
194
#undef C5
195
#undef C6
196
#undef C7
197
#define C1 29692
198
#define C2 27969
199
#define C3 25172
200
#define C4 21407
201
#define C5 16819
202
#define C6 11585
203
#define C7 5906
204
TABLE_SSE2
205
206
#undef C1
207
#undef C2
208
#undef C3
209
#undef C4
210
#undef C5
211
#undef C6
212
#undef C7
213
#define C1 26722
214
#define C2 25172
215
#define C3 22654
216
#define C4 19266
217
#define C5 15137
218
#define C6 10426
219
#define C7 5315
220
TABLE_SSE2
221
222
#undef C1
223
#undef C2
224
#undef C3
225
#undef C4
226
#undef C5
227
#undef C6
228
#undef C7
229
#define C1 22725
230
#define C2 21407
231
#define C3 19266
232
#define C4 16384
233
#define C5 12873
234
#define C6 8867
235
#define C7 4520
236
TABLE_SSE2
237
238
#undef C1
239
#undef C2
240
#undef C3
241
#undef C4
242
#undef C5
243
#undef C6
244
#undef C7
245
#define C1 26722
246
#define C2 25172
247
#define C3 22654
248
#define C4 19266
249
#define C5 15137
250
#define C6 10426
251
#define C7 5315
252
TABLE_SSE2
253
254
#undef C1
255
#undef C2
256
#undef C3
257
#undef C4
258
#undef C5
259
#undef C6
260
#undef C7
261
#define C1 29692
262
#define C2 27969
263
#define C3 25172
264
#define C4 21407
265
#define C5 16819
266
#define C6 11585
267
#define C7 5906
268
TABLE_SSE2
269
270
#undef C1
271
#undef C2
272
#undef C3
273
#undef C4
274
#undef C5
275
#undef C6
276
#undef C7
277
#define C1 31521
278
#define C2 29692
279
#define C3 26722
280
#define C4 22725
281
#define C5 17855
282
#define C6 12299
283
#define C7 6270
284
TABLE_SSE2
285 19f82bc8 Michael Niedermayer
}};
286
287 d45be178 Baptiste Coudurier
#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
288
289 7c3a9fe2 Loren Merritt
#define FDCT_COL(cpu, mm, mov)\
290
static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\
291
{\
292 d45be178 Baptiste Coudurier
    __asm__ volatile (\
293
        #mov"      16(%0),  %%"#mm"0 \n\t" \
294
        #mov"      96(%0),  %%"#mm"1 \n\t" \
295
        #mov"    %%"#mm"0,  %%"#mm"2 \n\t" \
296
        #mov"      32(%0),  %%"#mm"3 \n\t" \
297
        "paddsw  %%"#mm"1,  %%"#mm"0 \n\t" \
298
        #mov"      80(%0),  %%"#mm"4 \n\t" \
299
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \
300
        #mov"        (%0),  %%"#mm"5 \n\t" \
301
        "paddsw  %%"#mm"3,  %%"#mm"4 \n\t" \
302
        "paddsw   112(%0),  %%"#mm"5 \n\t" \
303
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \
304
        #mov"    %%"#mm"0,  %%"#mm"6 \n\t" \
305
        "psubsw  %%"#mm"1,  %%"#mm"2 \n\t" \
306
        #mov"      16(%1),  %%"#mm"1 \n\t" \
307
        "psubsw  %%"#mm"4,  %%"#mm"0 \n\t" \
308
        #mov"      48(%0),  %%"#mm"7 \n\t" \
309
        "pmulhw  %%"#mm"0,  %%"#mm"1 \n\t" \
310
        "paddsw    64(%0),  %%"#mm"7 \n\t" \
311
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \
312
        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
313
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \
314
        #mov"    %%"#mm"5,  %%"#mm"4 \n\t" \
315
        "psubsw  %%"#mm"7,  %%"#mm"5 \n\t" \
316
        "paddsw  %%"#mm"5,  %%"#mm"1 \n\t" \
317
        "paddsw  %%"#mm"7,  %%"#mm"4 \n\t" \
318
        "por         (%2),  %%"#mm"1 \n\t" \
319
        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \
320
        "pmulhw    16(%1),  %%"#mm"5 \n\t" \
321
        #mov"    %%"#mm"4,  %%"#mm"7 \n\t" \
322
        "psubsw    80(%0),  %%"#mm"3 \n\t" \
323
        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
324
        #mov"    %%"#mm"1,    32(%3) \n\t" \
325
        "paddsw  %%"#mm"6,  %%"#mm"7 \n\t" \
326
        #mov"      48(%0),  %%"#mm"1 \n\t" \
327
        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \
328
        "psubsw    64(%0),  %%"#mm"1 \n\t" \
329
        #mov"    %%"#mm"2,  %%"#mm"6 \n\t" \
330
        #mov"    %%"#mm"4,    64(%3) \n\t" \
331
        "paddsw  %%"#mm"3,  %%"#mm"2 \n\t" \
332
        "pmulhw      (%4),  %%"#mm"2 \n\t" \
333
        "psubsw  %%"#mm"3,  %%"#mm"6 \n\t" \
334
        "pmulhw      (%4),  %%"#mm"6 \n\t" \
335
        "psubsw  %%"#mm"0,  %%"#mm"5 \n\t" \
336
        "por         (%2),  %%"#mm"5 \n\t" \
337
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \
338
        "por         (%2),  %%"#mm"2 \n\t" \
339
        #mov"    %%"#mm"1,  %%"#mm"4 \n\t" \
340
        #mov"        (%0),  %%"#mm"3 \n\t" \
341
        "paddsw  %%"#mm"6,  %%"#mm"1 \n\t" \
342
        "psubsw   112(%0),  %%"#mm"3 \n\t" \
343
        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
344
        #mov"        (%1),  %%"#mm"0 \n\t" \
345
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \
346
        #mov"      32(%1),  %%"#mm"6 \n\t" \
347
        "pmulhw  %%"#mm"1,  %%"#mm"0 \n\t" \
348
        #mov"    %%"#mm"7,      (%3) \n\t" \
349
        "pmulhw  %%"#mm"4,  %%"#mm"6 \n\t" \
350
        #mov"    %%"#mm"5,    96(%3) \n\t" \
351
        #mov"    %%"#mm"3,  %%"#mm"7 \n\t" \
352
        #mov"      32(%1),  %%"#mm"5 \n\t" \
353
        "psubsw  %%"#mm"2,  %%"#mm"7 \n\t" \
354
        "paddsw  %%"#mm"2,  %%"#mm"3 \n\t" \
355
        "pmulhw  %%"#mm"7,  %%"#mm"5 \n\t" \
356
        "paddsw  %%"#mm"3,  %%"#mm"0 \n\t" \
357
        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
358
        "pmulhw      (%1),  %%"#mm"3 \n\t" \
359
        "por         (%2),  %%"#mm"0 \n\t" \
360
        "paddsw  %%"#mm"7,  %%"#mm"5 \n\t" \
361
        "psubsw  %%"#mm"6,  %%"#mm"7 \n\t" \
362
        #mov"    %%"#mm"0,    16(%3) \n\t" \
363
        "paddsw  %%"#mm"4,  %%"#mm"5 \n\t" \
364
        #mov"    %%"#mm"7,    48(%3) \n\t" \
365
        "psubsw  %%"#mm"1,  %%"#mm"3 \n\t" \
366
        #mov"    %%"#mm"5,    80(%3) \n\t" \
367
        #mov"    %%"#mm"3,   112(%3) \n\t" \
368
        : \
369
        : "r" (in  + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \
370
          "r" (out + offset), "r" (ocos_4_16)); \
371 694ec061 Fabrice Bellard
}
372
373 7c3a9fe2 Loren Merritt
FDCT_COL(mmx, mm, movq)
374
FDCT_COL(sse2, xmm, movdqa)
375 8fd19ab2 Michael Niedermayer
376 849f1035 Måns Rullgård
static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
377 8fd19ab2 Michael Niedermayer
{
378 be449fca Diego Pettenò
    __asm__ volatile(
379 0fc256f3 John Dalgliesh
#define FDCT_ROW_SSE2_H1(i,t)                    \
380
        "movq      " #i "(%0), %%xmm2      \n\t" \
381
        "movq      " #i "+8(%0), %%xmm0    \n\t" \
382
        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
383
        "movdqa    " #t "+48(%1), %%xmm7   \n\t" \
384
        "movdqa    " #t "(%1), %%xmm4      \n\t" \
385
        "movdqa    " #t "+16(%1), %%xmm5   \n\t"
386
387
#define FDCT_ROW_SSE2_H2(i,t)                    \
388
        "movq      " #i "(%0), %%xmm2      \n\t" \
389
        "movq      " #i "+8(%0), %%xmm0    \n\t" \
390
        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
391
        "movdqa    " #t "+48(%1), %%xmm7   \n\t"
392
393
#define FDCT_ROW_SSE2(i)                      \
394
        "movq      %%xmm2, %%xmm1       \n\t" \
395
        "pshuflw   $27, %%xmm0, %%xmm0  \n\t" \
396
        "paddsw    %%xmm0, %%xmm1       \n\t" \
397
        "psubsw    %%xmm0, %%xmm2       \n\t" \
398
        "punpckldq %%xmm2, %%xmm1       \n\t" \
399
        "pshufd    $78, %%xmm1, %%xmm2  \n\t" \
400
        "pmaddwd   %%xmm2, %%xmm3       \n\t" \
401
        "pmaddwd   %%xmm1, %%xmm7       \n\t" \
402
        "pmaddwd   %%xmm5, %%xmm2       \n\t" \
403
        "pmaddwd   %%xmm4, %%xmm1       \n\t" \
404
        "paddd     %%xmm7, %%xmm3       \n\t" \
405
        "paddd     %%xmm2, %%xmm1       \n\t" \
406
        "paddd     %%xmm6, %%xmm3       \n\t" \
407
        "paddd     %%xmm6, %%xmm1       \n\t" \
408
        "psrad     %3, %%xmm3           \n\t" \
409
        "psrad     %3, %%xmm1           \n\t" \
410
        "packssdw  %%xmm3, %%xmm1       \n\t" \
411
        "movdqa    %%xmm1, " #i "(%4)   \n\t"
412
413 bb270c08 Diego Biurrun
        "movdqa    (%2), %%xmm6         \n\t"
414 0fc256f3 John Dalgliesh
        FDCT_ROW_SSE2_H1(0,0)
415
        FDCT_ROW_SSE2(0)
416
        FDCT_ROW_SSE2_H2(64,0)
417
        FDCT_ROW_SSE2(64)
418
419
        FDCT_ROW_SSE2_H1(16,64)
420
        FDCT_ROW_SSE2(16)
421
        FDCT_ROW_SSE2_H2(112,64)
422
        FDCT_ROW_SSE2(112)
423
424
        FDCT_ROW_SSE2_H1(32,128)
425
        FDCT_ROW_SSE2(32)
426
        FDCT_ROW_SSE2_H2(96,128)
427
        FDCT_ROW_SSE2(96)
428
429
        FDCT_ROW_SSE2_H1(48,192)
430
        FDCT_ROW_SSE2(48)
431
        FDCT_ROW_SSE2_H2(80,192)
432
        FDCT_ROW_SSE2(80)
433 bb270c08 Diego Biurrun
        :
434 e2d13c58 Ramiro Polla
        : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2),
435
          "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
436 0d729e0d Ramiro Polla
          XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
437
                            "%xmm4", "%xmm5", "%xmm6", "%xmm7")
438 8fd19ab2 Michael Niedermayer
    );
439
}
440
441 849f1035 Måns Rullgård
static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table)
442 115329f1 Diego Biurrun
{
443 d45be178 Baptiste Coudurier
    __asm__ volatile (
444
        "pshufw    $0x1B, 8(%0), %%mm5 \n\t"
445
        "movq       (%0), %%mm0 \n\t"
446
        "movq      %%mm0, %%mm1 \n\t"
447
        "paddsw    %%mm5, %%mm0 \n\t"
448
        "psubsw    %%mm5, %%mm1 \n\t"
449
        "movq      %%mm0, %%mm2 \n\t"
450
        "punpckldq %%mm1, %%mm0 \n\t"
451
        "punpckhdq %%mm1, %%mm2 \n\t"
452
        "movq       (%1), %%mm1 \n\t"
453
        "movq      8(%1), %%mm3 \n\t"
454
        "movq     16(%1), %%mm4 \n\t"
455
        "movq     24(%1), %%mm5 \n\t"
456
        "movq     32(%1), %%mm6 \n\t"
457
        "movq     40(%1), %%mm7 \n\t"
458
        "pmaddwd   %%mm0, %%mm1 \n\t"
459
        "pmaddwd   %%mm2, %%mm3 \n\t"
460
        "pmaddwd   %%mm0, %%mm4 \n\t"
461
        "pmaddwd   %%mm2, %%mm5 \n\t"
462
        "pmaddwd   %%mm0, %%mm6 \n\t"
463
        "pmaddwd   %%mm2, %%mm7 \n\t"
464
        "pmaddwd  48(%1), %%mm0 \n\t"
465
        "pmaddwd  56(%1), %%mm2 \n\t"
466
        "paddd     %%mm1, %%mm3 \n\t"
467
        "paddd     %%mm4, %%mm5 \n\t"
468
        "paddd     %%mm6, %%mm7 \n\t"
469
        "paddd     %%mm0, %%mm2 \n\t"
470
        "movq       (%2), %%mm0 \n\t"
471
        "paddd     %%mm0, %%mm3 \n\t"
472
        "paddd     %%mm0, %%mm5 \n\t"
473
        "paddd     %%mm0, %%mm7 \n\t"
474
        "paddd     %%mm0, %%mm2 \n\t"
475
        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
476
        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
477
        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
478
        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
479
        "packssdw  %%mm5, %%mm3 \n\t"
480
        "packssdw  %%mm2, %%mm7 \n\t"
481
        "movq      %%mm3,  (%3) \n\t"
482
        "movq      %%mm7, 8(%3) \n\t"
483
        :
484
        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
485 99200bae Michael Niedermayer
}
486
487 849f1035 Måns Rullgård
static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
488 115329f1 Diego Biurrun
{
489 d45be178 Baptiste Coudurier
    //FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...)
490
    __asm__ volatile(
491
        "movd     12(%0), %%mm1 \n\t"
492
        "punpcklwd 8(%0), %%mm1 \n\t"
493
        "movq      %%mm1, %%mm2 \n\t"
494
        "psrlq     $0x20, %%mm1 \n\t"
495
        "movq      0(%0), %%mm0 \n\t"
496
        "punpcklwd %%mm2, %%mm1 \n\t"
497
        "movq      %%mm0, %%mm5 \n\t"
498
        "paddsw    %%mm1, %%mm0 \n\t"
499
        "psubsw    %%mm1, %%mm5 \n\t"
500
        "movq      %%mm0, %%mm2 \n\t"
501
        "punpckldq %%mm5, %%mm0 \n\t"
502
        "punpckhdq %%mm5, %%mm2 \n\t"
503
        "movq      0(%1), %%mm1 \n\t"
504
        "movq      8(%1), %%mm3 \n\t"
505
        "movq     16(%1), %%mm4 \n\t"
506
        "movq     24(%1), %%mm5 \n\t"
507
        "movq     32(%1), %%mm6 \n\t"
508
        "movq     40(%1), %%mm7 \n\t"
509
        "pmaddwd   %%mm0, %%mm1 \n\t"
510
        "pmaddwd   %%mm2, %%mm3 \n\t"
511
        "pmaddwd   %%mm0, %%mm4 \n\t"
512
        "pmaddwd   %%mm2, %%mm5 \n\t"
513
        "pmaddwd   %%mm0, %%mm6 \n\t"
514
        "pmaddwd   %%mm2, %%mm7 \n\t"
515
        "pmaddwd  48(%1), %%mm0 \n\t"
516
        "pmaddwd  56(%1), %%mm2 \n\t"
517
        "paddd     %%mm1, %%mm3 \n\t"
518
        "paddd     %%mm4, %%mm5 \n\t"
519
        "paddd     %%mm6, %%mm7 \n\t"
520
        "paddd     %%mm0, %%mm2 \n\t"
521
        "movq       (%2), %%mm0 \n\t"
522
        "paddd     %%mm0, %%mm3 \n\t"
523
        "paddd     %%mm0, %%mm5 \n\t"
524
        "paddd     %%mm0, %%mm7 \n\t"
525
        "paddd     %%mm0, %%mm2 \n\t"
526
        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
527
        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
528
        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
529
        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
530
        "packssdw  %%mm5, %%mm3 \n\t"
531
        "packssdw  %%mm2, %%mm7 \n\t"
532
        "movq      %%mm3, 0(%3) \n\t"
533
        "movq      %%mm7, 8(%3) \n\t"
534
        :
535
        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
536 694ec061 Fabrice Bellard
}
537
538 3f09f52a Arpi
void ff_fdct_mmx(int16_t *block)
539 694ec061 Fabrice Bellard
{
540 d343d598 Måns Rullgård
    DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
541 cf5aed5b Michael Niedermayer
    int16_t * block1= (int16_t*)align_tmp;
542
    const int16_t *table= tab_frw_01234567;
543 694ec061 Fabrice Bellard
    int i;
544
545 7c3a9fe2 Loren Merritt
    fdct_col_mmx(block, block1, 0);
546
    fdct_col_mmx(block, block1, 4);
547 694ec061 Fabrice Bellard
548
    for(i=8;i>0;i--) {
549 cf5aed5b Michael Niedermayer
        fdct_row_mmx(block1, block, table);
550 cf3bf5bb Michael Niedermayer
        block1 += 8;
551
        table += 32;
552 cf5aed5b Michael Niedermayer
        block += 8;
553 cf3bf5bb Michael Niedermayer
    }
554
}
555
556
void ff_fdct_mmx2(int16_t *block)
557
{
558 d343d598 Måns Rullgård
    DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
559 cf5aed5b Michael Niedermayer
    int16_t *block1= (int16_t*)align_tmp;
560
    const int16_t *table= tab_frw_01234567;
561 cf3bf5bb Michael Niedermayer
    int i;
562
563 7c3a9fe2 Loren Merritt
    fdct_col_mmx(block, block1, 0);
564
    fdct_col_mmx(block, block1, 4);
565 cf3bf5bb Michael Niedermayer
566
    for(i=8;i>0;i--) {
567 cf5aed5b Michael Niedermayer
        fdct_row_mmx2(block1, block, table);
568 694ec061 Fabrice Bellard
        block1 += 8;
569
        table += 32;
570 cf5aed5b Michael Niedermayer
        block += 8;
571 694ec061 Fabrice Bellard
    }
572
}
573 8fd19ab2 Michael Niedermayer
574 115329f1 Diego Biurrun
void ff_fdct_sse2(int16_t *block)
575 8fd19ab2 Michael Niedermayer
{
576 d343d598 Måns Rullgård
    DECLARE_ALIGNED(16, int64_t, align_tmp)[16];
577 cf5aed5b Michael Niedermayer
    int16_t * const block1= (int16_t*)align_tmp;
578 8fd19ab2 Michael Niedermayer
579 7c3a9fe2 Loren Merritt
    fdct_col_sse2(block, block1, 0);
580 8fd19ab2 Michael Niedermayer
    fdct_row_sse2(block1, block);
581
}