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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
#include "libavcodec/dsputil.h"
35 694ec061 Fabrice Bellard
36
#define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align)))
37
38
//////////////////////////////////////////////////////////////////////
39
//
40
// constants for the forward DCT
41
// -----------------------------
42
//
43
// Be sure to check that your compiler is aligning all constants to QWORD
44
// (8-byte) memory boundaries!  Otherwise the unaligned memory access will
45
// severely stall MMX execution.
46
//
47
//////////////////////////////////////////////////////////////////////
48
49 bb270c08 Diego Biurrun
#define BITS_FRW_ACC   3 //; 2 or 3 for accuracy
50
#define SHIFT_FRW_COL  BITS_FRW_ACC
51
#define SHIFT_FRW_ROW  (BITS_FRW_ACC + 17 - 3)
52
#define RND_FRW_ROW    (1 << (SHIFT_FRW_ROW-1))
53
//#define RND_FRW_COL    (1 << (SHIFT_FRW_COL-1))
54 694ec061 Fabrice Bellard
55 7c3a9fe2 Loren Merritt
#define X8(x) x,x,x,x,x,x,x,x
56
57 694ec061 Fabrice Bellard
//concatenated table, for forward DCT transformation
58 7c3a9fe2 Loren Merritt
static const int16_t fdct_tg_all_16[24] ATTR_ALIGN(16) = {
59
    X8(13036),  // tg * (2<<16) + 0.5
60
    X8(27146),  // tg * (2<<16) + 0.5
61
    X8(-21746)  // tg * (2<<16) + 0.5
62 694ec061 Fabrice Bellard
};
63
64 7c3a9fe2 Loren Merritt
static const int16_t ocos_4_16[8] ATTR_ALIGN(16) = {
65
    X8(23170)   //cos * (2<<15) + 0.5
66 694ec061 Fabrice Bellard
};
67
68 7c3a9fe2 Loren Merritt
static const int16_t fdct_one_corr[8] ATTR_ALIGN(16) = { X8(1) };
69 8fd19ab2 Michael Niedermayer
70 053dea12 Aurelien Jacobs
static const int32_t fdct_r_row[2] ATTR_ALIGN(8) = {RND_FRW_ROW, RND_FRW_ROW };
71 694ec061 Fabrice Bellard
72 bb54f6ab Måns Rullgård
static struct
73 19f82bc8 Michael Niedermayer
{
74 053dea12 Aurelien Jacobs
 const int32_t fdct_r_row_sse2[4] ATTR_ALIGN(16);
75 19f82bc8 Michael Niedermayer
} fdct_r_row_sse2 ATTR_ALIGN(16)=
76
{{
77
 RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
78
}};
79
//static const long fdct_r_row_sse2[4] ATTR_ALIGN(16) = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
80 8fd19ab2 Michael Niedermayer
81 3d71589f Michael Niedermayer
static const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = {  // forward_dct coeff table
82 115329f1 Diego Biurrun
  16384,   16384,   22725,   19266,
83
  16384,   16384,   12873,    4520,
84
  21407,    8867,   19266,   -4520,
85
  -8867,  -21407,  -22725,  -12873,
86
  16384,  -16384,   12873,  -22725,
87
 -16384,   16384,    4520,   19266,
88
   8867,  -21407,    4520,  -12873,
89
  21407,   -8867,   19266,  -22725,
90
91
  22725,   22725,   31521,   26722,
92
  22725,   22725,   17855,    6270,
93
  29692,   12299,   26722,   -6270,
94
 -12299,  -29692,  -31521,  -17855,
95
  22725,  -22725,   17855,  -31521,
96
 -22725,   22725,    6270,   26722,
97
  12299,  -29692,    6270,  -17855,
98
  29692,  -12299,   26722,  -31521,
99
100
  21407,   21407,   29692,   25172,
101
  21407,   21407,   16819,    5906,
102
  27969,   11585,   25172,   -5906,
103
 -11585,  -27969,  -29692,  -16819,
104
  21407,  -21407,   16819,  -29692,
105
 -21407,   21407,    5906,   25172,
106
  11585,  -27969,    5906,  -16819,
107
  27969,  -11585,   25172,  -29692,
108
109
  19266,   19266,   26722,   22654,
110
  19266,   19266,   15137,    5315,
111
  25172,   10426,   22654,   -5315,
112
 -10426,  -25172,  -26722,  -15137,
113
  19266,  -19266,   15137,  -26722,
114
 -19266,   19266,    5315,   22654,
115
  10426,  -25172,    5315,  -15137,
116
  25172,  -10426,   22654,  -26722,
117
118
  16384,   16384,   22725,   19266,
119
  16384,   16384,   12873,    4520,
120
  21407,    8867,   19266,   -4520,
121
  -8867,  -21407,  -22725,  -12873,
122
  16384,  -16384,   12873,  -22725,
123
 -16384,   16384,    4520,   19266,
124
   8867,  -21407,    4520,  -12873,
125
  21407,   -8867,   19266,  -22725,
126
127
  19266,   19266,   26722,   22654,
128
  19266,   19266,   15137,    5315,
129
  25172,   10426,   22654,   -5315,
130
 -10426,  -25172,  -26722,  -15137,
131
  19266,  -19266,   15137,  -26722,
132
 -19266,   19266,    5315,   22654,
133
  10426,  -25172,    5315,  -15137,
134
  25172,  -10426,   22654,  -26722,
135
136
  21407,   21407,   29692,   25172,
137
  21407,   21407,   16819,    5906,
138
  27969,   11585,   25172,   -5906,
139
 -11585,  -27969,  -29692,  -16819,
140
  21407,  -21407,   16819,  -29692,
141
 -21407,   21407,    5906,   25172,
142
  11585,  -27969,    5906,  -16819,
143
  27969,  -11585,   25172,  -29692,
144
145
  22725,   22725,   31521,   26722,
146
  22725,   22725,   17855,    6270,
147
  29692,   12299,   26722,   -6270,
148
 -12299,  -29692,  -31521,  -17855,
149
  22725,  -22725,   17855,  -31521,
150
 -22725,   22725,    6270,   26722,
151
  12299,  -29692,    6270,  -17855,
152
  29692,  -12299,   26722,  -31521,
153 694ec061 Fabrice Bellard
};
154
155 bb54f6ab Måns Rullgård
static struct
156 19f82bc8 Michael Niedermayer
{
157
 const int16_t tab_frw_01234567_sse2[256] ATTR_ALIGN(16);
158
} tab_frw_01234567_sse2 ATTR_ALIGN(16) =
159
{{
160 115329f1 Diego Biurrun
//static const int16_t tab_frw_01234567_sse2[] ATTR_ALIGN(16) = {  // forward_dct coeff table
161 8fd19ab2 Michael Niedermayer
#define TABLE_SSE2 C4,  C4,  C1,  C3, -C6, -C2, -C1, -C5, \
162
                   C4,  C4,  C5,  C7,  C2,  C6,  C3, -C7, \
163
                  -C4,  C4,  C7,  C3,  C6, -C2,  C7, -C5, \
164 115329f1 Diego Biurrun
                   C4, -C4,  C5, -C1,  C2, -C6,  C3, -C1,
165
// c1..c7 * cos(pi/4) * 2^15
166 8fd19ab2 Michael Niedermayer
#define C1 22725
167
#define C2 21407
168
#define C3 19266
169
#define C4 16384
170
#define C5 12873
171
#define C6 8867
172
#define C7 4520
173
TABLE_SSE2
174
175
#undef C1
176
#undef C2
177
#undef C3
178
#undef C4
179
#undef C5
180
#undef C6
181
#undef C7
182
#define C1 31521
183
#define C2 29692
184
#define C3 26722
185
#define C4 22725
186
#define C5 17855
187
#define C6 12299
188
#define C7 6270
189
TABLE_SSE2
190
191
#undef C1
192
#undef C2
193
#undef C3
194
#undef C4
195
#undef C5
196
#undef C6
197
#undef C7
198
#define C1 29692
199
#define C2 27969
200
#define C3 25172
201
#define C4 21407
202
#define C5 16819
203
#define C6 11585
204
#define C7 5906
205
TABLE_SSE2
206
207
#undef C1
208
#undef C2
209
#undef C3
210
#undef C4
211
#undef C5
212
#undef C6
213
#undef C7
214
#define C1 26722
215
#define C2 25172
216
#define C3 22654
217
#define C4 19266
218
#define C5 15137
219
#define C6 10426
220
#define C7 5315
221
TABLE_SSE2
222
223
#undef C1
224
#undef C2
225
#undef C3
226
#undef C4
227
#undef C5
228
#undef C6
229
#undef C7
230
#define C1 22725
231
#define C2 21407
232
#define C3 19266
233
#define C4 16384
234
#define C5 12873
235
#define C6 8867
236
#define C7 4520
237
TABLE_SSE2
238
239
#undef C1
240
#undef C2
241
#undef C3
242
#undef C4
243
#undef C5
244
#undef C6
245
#undef C7
246
#define C1 26722
247
#define C2 25172
248
#define C3 22654
249
#define C4 19266
250
#define C5 15137
251
#define C6 10426
252
#define C7 5315
253
TABLE_SSE2
254
255
#undef C1
256
#undef C2
257
#undef C3
258
#undef C4
259
#undef C5
260
#undef C6
261
#undef C7
262
#define C1 29692
263
#define C2 27969
264
#define C3 25172
265
#define C4 21407
266
#define C5 16819
267
#define C6 11585
268
#define C7 5906
269
TABLE_SSE2
270
271
#undef C1
272
#undef C2
273
#undef C3
274
#undef C4
275
#undef C5
276
#undef C6
277
#undef C7
278
#define C1 31521
279
#define C2 29692
280
#define C3 26722
281
#define C4 22725
282
#define C5 17855
283
#define C6 12299
284
#define C7 6270
285
TABLE_SSE2
286 19f82bc8 Michael Niedermayer
}};
287
288 d45be178 Baptiste Coudurier
#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
289
290 7c3a9fe2 Loren Merritt
#define FDCT_COL(cpu, mm, mov)\
291
static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\
292
{\
293 d45be178 Baptiste Coudurier
    __asm__ volatile (\
294
        #mov"      16(%0),  %%"#mm"0 \n\t" \
295
        #mov"      96(%0),  %%"#mm"1 \n\t" \
296
        #mov"    %%"#mm"0,  %%"#mm"2 \n\t" \
297
        #mov"      32(%0),  %%"#mm"3 \n\t" \
298
        "paddsw  %%"#mm"1,  %%"#mm"0 \n\t" \
299
        #mov"      80(%0),  %%"#mm"4 \n\t" \
300
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \
301
        #mov"        (%0),  %%"#mm"5 \n\t" \
302
        "paddsw  %%"#mm"3,  %%"#mm"4 \n\t" \
303
        "paddsw   112(%0),  %%"#mm"5 \n\t" \
304
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \
305
        #mov"    %%"#mm"0,  %%"#mm"6 \n\t" \
306
        "psubsw  %%"#mm"1,  %%"#mm"2 \n\t" \
307
        #mov"      16(%1),  %%"#mm"1 \n\t" \
308
        "psubsw  %%"#mm"4,  %%"#mm"0 \n\t" \
309
        #mov"      48(%0),  %%"#mm"7 \n\t" \
310
        "pmulhw  %%"#mm"0,  %%"#mm"1 \n\t" \
311
        "paddsw    64(%0),  %%"#mm"7 \n\t" \
312
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \
313
        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
314
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \
315
        #mov"    %%"#mm"5,  %%"#mm"4 \n\t" \
316
        "psubsw  %%"#mm"7,  %%"#mm"5 \n\t" \
317
        "paddsw  %%"#mm"5,  %%"#mm"1 \n\t" \
318
        "paddsw  %%"#mm"7,  %%"#mm"4 \n\t" \
319
        "por         (%2),  %%"#mm"1 \n\t" \
320
        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \
321
        "pmulhw    16(%1),  %%"#mm"5 \n\t" \
322
        #mov"    %%"#mm"4,  %%"#mm"7 \n\t" \
323
        "psubsw    80(%0),  %%"#mm"3 \n\t" \
324
        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
325
        #mov"    %%"#mm"1,    32(%3) \n\t" \
326
        "paddsw  %%"#mm"6,  %%"#mm"7 \n\t" \
327
        #mov"      48(%0),  %%"#mm"1 \n\t" \
328
        "psllw  $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \
329
        "psubsw    64(%0),  %%"#mm"1 \n\t" \
330
        #mov"    %%"#mm"2,  %%"#mm"6 \n\t" \
331
        #mov"    %%"#mm"4,    64(%3) \n\t" \
332
        "paddsw  %%"#mm"3,  %%"#mm"2 \n\t" \
333
        "pmulhw      (%4),  %%"#mm"2 \n\t" \
334
        "psubsw  %%"#mm"3,  %%"#mm"6 \n\t" \
335
        "pmulhw      (%4),  %%"#mm"6 \n\t" \
336
        "psubsw  %%"#mm"0,  %%"#mm"5 \n\t" \
337
        "por         (%2),  %%"#mm"5 \n\t" \
338
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \
339
        "por         (%2),  %%"#mm"2 \n\t" \
340
        #mov"    %%"#mm"1,  %%"#mm"4 \n\t" \
341
        #mov"        (%0),  %%"#mm"3 \n\t" \
342
        "paddsw  %%"#mm"6,  %%"#mm"1 \n\t" \
343
        "psubsw   112(%0),  %%"#mm"3 \n\t" \
344
        "psubsw  %%"#mm"6,  %%"#mm"4 \n\t" \
345
        #mov"        (%1),  %%"#mm"0 \n\t" \
346
        "psllw  $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \
347
        #mov"      32(%1),  %%"#mm"6 \n\t" \
348
        "pmulhw  %%"#mm"1,  %%"#mm"0 \n\t" \
349
        #mov"    %%"#mm"7,      (%3) \n\t" \
350
        "pmulhw  %%"#mm"4,  %%"#mm"6 \n\t" \
351
        #mov"    %%"#mm"5,    96(%3) \n\t" \
352
        #mov"    %%"#mm"3,  %%"#mm"7 \n\t" \
353
        #mov"      32(%1),  %%"#mm"5 \n\t" \
354
        "psubsw  %%"#mm"2,  %%"#mm"7 \n\t" \
355
        "paddsw  %%"#mm"2,  %%"#mm"3 \n\t" \
356
        "pmulhw  %%"#mm"7,  %%"#mm"5 \n\t" \
357
        "paddsw  %%"#mm"3,  %%"#mm"0 \n\t" \
358
        "paddsw  %%"#mm"4,  %%"#mm"6 \n\t" \
359
        "pmulhw      (%1),  %%"#mm"3 \n\t" \
360
        "por         (%2),  %%"#mm"0 \n\t" \
361
        "paddsw  %%"#mm"7,  %%"#mm"5 \n\t" \
362
        "psubsw  %%"#mm"6,  %%"#mm"7 \n\t" \
363
        #mov"    %%"#mm"0,    16(%3) \n\t" \
364
        "paddsw  %%"#mm"4,  %%"#mm"5 \n\t" \
365
        #mov"    %%"#mm"7,    48(%3) \n\t" \
366
        "psubsw  %%"#mm"1,  %%"#mm"3 \n\t" \
367
        #mov"    %%"#mm"5,    80(%3) \n\t" \
368
        #mov"    %%"#mm"3,   112(%3) \n\t" \
369
        : \
370
        : "r" (in  + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \
371
          "r" (out + offset), "r" (ocos_4_16)); \
372 694ec061 Fabrice Bellard
}
373
374 7c3a9fe2 Loren Merritt
FDCT_COL(mmx, mm, movq)
375
FDCT_COL(sse2, xmm, movdqa)
376 8fd19ab2 Michael Niedermayer
377 849f1035 Måns Rullgård
static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
378 8fd19ab2 Michael Niedermayer
{
379 be449fca Diego Pettenò
    __asm__ volatile(
380 0fc256f3 John Dalgliesh
#define FDCT_ROW_SSE2_H1(i,t)                    \
381
        "movq      " #i "(%0), %%xmm2      \n\t" \
382
        "movq      " #i "+8(%0), %%xmm0    \n\t" \
383
        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
384
        "movdqa    " #t "+48(%1), %%xmm7   \n\t" \
385
        "movdqa    " #t "(%1), %%xmm4      \n\t" \
386
        "movdqa    " #t "+16(%1), %%xmm5   \n\t"
387
388
#define FDCT_ROW_SSE2_H2(i,t)                    \
389
        "movq      " #i "(%0), %%xmm2      \n\t" \
390
        "movq      " #i "+8(%0), %%xmm0    \n\t" \
391
        "movdqa    " #t "+32(%1), %%xmm3   \n\t" \
392
        "movdqa    " #t "+48(%1), %%xmm7   \n\t"
393
394
#define FDCT_ROW_SSE2(i)                      \
395
        "movq      %%xmm2, %%xmm1       \n\t" \
396
        "pshuflw   $27, %%xmm0, %%xmm0  \n\t" \
397
        "paddsw    %%xmm0, %%xmm1       \n\t" \
398
        "psubsw    %%xmm0, %%xmm2       \n\t" \
399
        "punpckldq %%xmm2, %%xmm1       \n\t" \
400
        "pshufd    $78, %%xmm1, %%xmm2  \n\t" \
401
        "pmaddwd   %%xmm2, %%xmm3       \n\t" \
402
        "pmaddwd   %%xmm1, %%xmm7       \n\t" \
403
        "pmaddwd   %%xmm5, %%xmm2       \n\t" \
404
        "pmaddwd   %%xmm4, %%xmm1       \n\t" \
405
        "paddd     %%xmm7, %%xmm3       \n\t" \
406
        "paddd     %%xmm2, %%xmm1       \n\t" \
407
        "paddd     %%xmm6, %%xmm3       \n\t" \
408
        "paddd     %%xmm6, %%xmm1       \n\t" \
409
        "psrad     %3, %%xmm3           \n\t" \
410
        "psrad     %3, %%xmm1           \n\t" \
411
        "packssdw  %%xmm3, %%xmm1       \n\t" \
412
        "movdqa    %%xmm1, " #i "(%4)   \n\t"
413
414 bb270c08 Diego Biurrun
        "movdqa    (%2), %%xmm6         \n\t"
415 0fc256f3 John Dalgliesh
        FDCT_ROW_SSE2_H1(0,0)
416
        FDCT_ROW_SSE2(0)
417
        FDCT_ROW_SSE2_H2(64,0)
418
        FDCT_ROW_SSE2(64)
419
420
        FDCT_ROW_SSE2_H1(16,64)
421
        FDCT_ROW_SSE2(16)
422
        FDCT_ROW_SSE2_H2(112,64)
423
        FDCT_ROW_SSE2(112)
424
425
        FDCT_ROW_SSE2_H1(32,128)
426
        FDCT_ROW_SSE2(32)
427
        FDCT_ROW_SSE2_H2(96,128)
428
        FDCT_ROW_SSE2(96)
429
430
        FDCT_ROW_SSE2_H1(48,192)
431
        FDCT_ROW_SSE2(48)
432
        FDCT_ROW_SSE2_H2(80,192)
433
        FDCT_ROW_SSE2(80)
434 bb270c08 Diego Biurrun
        :
435
        : "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2), "r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
436 8fd19ab2 Michael Niedermayer
    );
437
}
438
439 849f1035 Måns Rullgård
static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table)
440 115329f1 Diego Biurrun
{
441 d45be178 Baptiste Coudurier
    __asm__ volatile (
442
        "pshufw    $0x1B, 8(%0), %%mm5 \n\t"
443
        "movq       (%0), %%mm0 \n\t"
444
        "movq      %%mm0, %%mm1 \n\t"
445
        "paddsw    %%mm5, %%mm0 \n\t"
446
        "psubsw    %%mm5, %%mm1 \n\t"
447
        "movq      %%mm0, %%mm2 \n\t"
448
        "punpckldq %%mm1, %%mm0 \n\t"
449
        "punpckhdq %%mm1, %%mm2 \n\t"
450
        "movq       (%1), %%mm1 \n\t"
451
        "movq      8(%1), %%mm3 \n\t"
452
        "movq     16(%1), %%mm4 \n\t"
453
        "movq     24(%1), %%mm5 \n\t"
454
        "movq     32(%1), %%mm6 \n\t"
455
        "movq     40(%1), %%mm7 \n\t"
456
        "pmaddwd   %%mm0, %%mm1 \n\t"
457
        "pmaddwd   %%mm2, %%mm3 \n\t"
458
        "pmaddwd   %%mm0, %%mm4 \n\t"
459
        "pmaddwd   %%mm2, %%mm5 \n\t"
460
        "pmaddwd   %%mm0, %%mm6 \n\t"
461
        "pmaddwd   %%mm2, %%mm7 \n\t"
462
        "pmaddwd  48(%1), %%mm0 \n\t"
463
        "pmaddwd  56(%1), %%mm2 \n\t"
464
        "paddd     %%mm1, %%mm3 \n\t"
465
        "paddd     %%mm4, %%mm5 \n\t"
466
        "paddd     %%mm6, %%mm7 \n\t"
467
        "paddd     %%mm0, %%mm2 \n\t"
468
        "movq       (%2), %%mm0 \n\t"
469
        "paddd     %%mm0, %%mm3 \n\t"
470
        "paddd     %%mm0, %%mm5 \n\t"
471
        "paddd     %%mm0, %%mm7 \n\t"
472
        "paddd     %%mm0, %%mm2 \n\t"
473
        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
474
        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
475
        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
476
        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
477
        "packssdw  %%mm5, %%mm3 \n\t"
478
        "packssdw  %%mm2, %%mm7 \n\t"
479
        "movq      %%mm3,  (%3) \n\t"
480
        "movq      %%mm7, 8(%3) \n\t"
481
        :
482
        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
483 99200bae Michael Niedermayer
}
484
485 849f1035 Måns Rullgård
static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
486 115329f1 Diego Biurrun
{
487 d45be178 Baptiste Coudurier
    //FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...)
488
    __asm__ volatile(
489
        "movd     12(%0), %%mm1 \n\t"
490
        "punpcklwd 8(%0), %%mm1 \n\t"
491
        "movq      %%mm1, %%mm2 \n\t"
492
        "psrlq     $0x20, %%mm1 \n\t"
493
        "movq      0(%0), %%mm0 \n\t"
494
        "punpcklwd %%mm2, %%mm1 \n\t"
495
        "movq      %%mm0, %%mm5 \n\t"
496
        "paddsw    %%mm1, %%mm0 \n\t"
497
        "psubsw    %%mm1, %%mm5 \n\t"
498
        "movq      %%mm0, %%mm2 \n\t"
499
        "punpckldq %%mm5, %%mm0 \n\t"
500
        "punpckhdq %%mm5, %%mm2 \n\t"
501
        "movq      0(%1), %%mm1 \n\t"
502
        "movq      8(%1), %%mm3 \n\t"
503
        "movq     16(%1), %%mm4 \n\t"
504
        "movq     24(%1), %%mm5 \n\t"
505
        "movq     32(%1), %%mm6 \n\t"
506
        "movq     40(%1), %%mm7 \n\t"
507
        "pmaddwd   %%mm0, %%mm1 \n\t"
508
        "pmaddwd   %%mm2, %%mm3 \n\t"
509
        "pmaddwd   %%mm0, %%mm4 \n\t"
510
        "pmaddwd   %%mm2, %%mm5 \n\t"
511
        "pmaddwd   %%mm0, %%mm6 \n\t"
512
        "pmaddwd   %%mm2, %%mm7 \n\t"
513
        "pmaddwd  48(%1), %%mm0 \n\t"
514
        "pmaddwd  56(%1), %%mm2 \n\t"
515
        "paddd     %%mm1, %%mm3 \n\t"
516
        "paddd     %%mm4, %%mm5 \n\t"
517
        "paddd     %%mm6, %%mm7 \n\t"
518
        "paddd     %%mm0, %%mm2 \n\t"
519
        "movq       (%2), %%mm0 \n\t"
520
        "paddd     %%mm0, %%mm3 \n\t"
521
        "paddd     %%mm0, %%mm5 \n\t"
522
        "paddd     %%mm0, %%mm7 \n\t"
523
        "paddd     %%mm0, %%mm2 \n\t"
524
        "psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
525
        "psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
526
        "psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
527
        "psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
528
        "packssdw  %%mm5, %%mm3 \n\t"
529
        "packssdw  %%mm2, %%mm7 \n\t"
530
        "movq      %%mm3, 0(%3) \n\t"
531
        "movq      %%mm7, 8(%3) \n\t"
532
        :
533
        : "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
534 694ec061 Fabrice Bellard
}
535
536 3f09f52a Arpi
void ff_fdct_mmx(int16_t *block)
537 694ec061 Fabrice Bellard
{
538 3d71589f Michael Niedermayer
    int64_t align_tmp[16] ATTR_ALIGN(8);
539 cf5aed5b Michael Niedermayer
    int16_t * block1= (int16_t*)align_tmp;
540
    const int16_t *table= tab_frw_01234567;
541 694ec061 Fabrice Bellard
    int i;
542
543 7c3a9fe2 Loren Merritt
    fdct_col_mmx(block, block1, 0);
544
    fdct_col_mmx(block, block1, 4);
545 694ec061 Fabrice Bellard
546
    for(i=8;i>0;i--) {
547 cf5aed5b Michael Niedermayer
        fdct_row_mmx(block1, block, table);
548 cf3bf5bb Michael Niedermayer
        block1 += 8;
549
        table += 32;
550 cf5aed5b Michael Niedermayer
        block += 8;
551 cf3bf5bb Michael Niedermayer
    }
552
}
553
554
void ff_fdct_mmx2(int16_t *block)
555
{
556
    int64_t align_tmp[16] ATTR_ALIGN(8);
557 cf5aed5b Michael Niedermayer
    int16_t *block1= (int16_t*)align_tmp;
558
    const int16_t *table= tab_frw_01234567;
559 cf3bf5bb Michael Niedermayer
    int i;
560
561 7c3a9fe2 Loren Merritt
    fdct_col_mmx(block, block1, 0);
562
    fdct_col_mmx(block, block1, 4);
563 cf3bf5bb Michael Niedermayer
564
    for(i=8;i>0;i--) {
565 cf5aed5b Michael Niedermayer
        fdct_row_mmx2(block1, block, table);
566 694ec061 Fabrice Bellard
        block1 += 8;
567
        table += 32;
568 cf5aed5b Michael Niedermayer
        block += 8;
569 694ec061 Fabrice Bellard
    }
570
}
571 8fd19ab2 Michael Niedermayer
572 115329f1 Diego Biurrun
void ff_fdct_sse2(int16_t *block)
573 8fd19ab2 Michael Niedermayer
{
574 3829a62e Michael Niedermayer
    int64_t align_tmp[16] ATTR_ALIGN(16);
575 cf5aed5b Michael Niedermayer
    int16_t * const block1= (int16_t*)align_tmp;
576 8fd19ab2 Michael Niedermayer
577 7c3a9fe2 Loren Merritt
    fdct_col_sse2(block, block1, 0);
578 8fd19ab2 Michael Niedermayer
    fdct_row_sse2(block1, block);
579
}