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/libavcodec/x86/snowdsp_mmx.c

http://github.com/FFmpeg/FFmpeg
C | 898 lines | 792 code | 83 blank | 23 comment | 36 complexity | 8dceefcfb93d8820c3ac4c50d104ecd5 MD5 | raw file
  1/*
  2 * MMX and SSE2 optimized snow DSP utils
  3 * Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>
  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/cpu.h"
 23#include "libavutil/x86_cpu.h"
 24#include "libavcodec/avcodec.h"
 25#include "libavcodec/snow.h"
 26#include "libavcodec/dwt.h"
 27#include "dsputil_mmx.h"
 28
 29static void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width){
 30    const int w2= (width+1)>>1;
 31    DECLARE_ALIGNED(16, IDWTELEM, temp)[width>>1];
 32    const int w_l= (width>>1);
 33    const int w_r= w2 - 1;
 34    int i;
 35
 36    { // Lift 0
 37        IDWTELEM * const ref = b + w2 - 1;
 38        IDWTELEM b_0 = b[0]; //By allowing the first entry in b[0] to be calculated twice
 39        // (the first time erroneously), we allow the SSE2 code to run an extra pass.
 40        // The savings in code and time are well worth having to store this value and
 41        // calculate b[0] correctly afterwards.
 42
 43        i = 0;
 44        __asm__ volatile(
 45            "pcmpeqd   %%xmm7, %%xmm7         \n\t"
 46            "pcmpeqd   %%xmm3, %%xmm3         \n\t"
 47            "psllw         $1, %%xmm3         \n\t"
 48            "paddw     %%xmm7, %%xmm3         \n\t"
 49            "psllw        $13, %%xmm3         \n\t"
 50        ::);
 51        for(; i<w_l-15; i+=16){
 52            __asm__ volatile(
 53                "movdqu   (%1), %%xmm1        \n\t"
 54                "movdqu 16(%1), %%xmm5        \n\t"
 55                "movdqu  2(%1), %%xmm2        \n\t"
 56                "movdqu 18(%1), %%xmm6        \n\t"
 57                "paddw  %%xmm1, %%xmm2        \n\t"
 58                "paddw  %%xmm5, %%xmm6        \n\t"
 59                "paddw  %%xmm7, %%xmm2        \n\t"
 60                "paddw  %%xmm7, %%xmm6        \n\t"
 61                "pmulhw %%xmm3, %%xmm2        \n\t"
 62                "pmulhw %%xmm3, %%xmm6        \n\t"
 63                "paddw    (%0), %%xmm2        \n\t"
 64                "paddw  16(%0), %%xmm6        \n\t"
 65                "movdqa %%xmm2, (%0)          \n\t"
 66                "movdqa %%xmm6, 16(%0)        \n\t"
 67                :: "r"(&b[i]), "r"(&ref[i])
 68                : "memory"
 69            );
 70        }
 71        snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
 72        b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
 73    }
 74
 75    { // Lift 1
 76        IDWTELEM * const dst = b+w2;
 77
 78        i = 0;
 79        for(; (((x86_reg)&dst[i]) & 0x1F) && i<w_r; i++){
 80            dst[i] = dst[i] - (b[i] + b[i + 1]);
 81        }
 82        for(; i<w_r-15; i+=16){
 83            __asm__ volatile(
 84                "movdqu   (%1), %%xmm1        \n\t"
 85                "movdqu 16(%1), %%xmm5        \n\t"
 86                "movdqu  2(%1), %%xmm2        \n\t"
 87                "movdqu 18(%1), %%xmm6        \n\t"
 88                "paddw  %%xmm1, %%xmm2        \n\t"
 89                "paddw  %%xmm5, %%xmm6        \n\t"
 90                "movdqa   (%0), %%xmm0        \n\t"
 91                "movdqa 16(%0), %%xmm4        \n\t"
 92                "psubw  %%xmm2, %%xmm0        \n\t"
 93                "psubw  %%xmm6, %%xmm4        \n\t"
 94                "movdqa %%xmm0, (%0)          \n\t"
 95                "movdqa %%xmm4, 16(%0)        \n\t"
 96                :: "r"(&dst[i]), "r"(&b[i])
 97                : "memory"
 98            );
 99        }
100        snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
101    }
102
103    { // Lift 2
104        IDWTELEM * const ref = b+w2 - 1;
105        IDWTELEM b_0 = b[0];
106
107        i = 0;
108        __asm__ volatile(
109            "psllw         $15, %%xmm7        \n\t"
110            "pcmpeqw    %%xmm6, %%xmm6        \n\t"
111            "psrlw         $13, %%xmm6        \n\t"
112            "paddw      %%xmm7, %%xmm6        \n\t"
113        ::);
114        for(; i<w_l-15; i+=16){
115            __asm__ volatile(
116                "movdqu   (%1), %%xmm0        \n\t"
117                "movdqu 16(%1), %%xmm4        \n\t"
118                "movdqu  2(%1), %%xmm1        \n\t"
119                "movdqu 18(%1), %%xmm5        \n\t" //FIXME try aligned reads and shifts
120                "paddw  %%xmm6, %%xmm0        \n\t"
121                "paddw  %%xmm6, %%xmm4        \n\t"
122                "paddw  %%xmm7, %%xmm1        \n\t"
123                "paddw  %%xmm7, %%xmm5        \n\t"
124                "pavgw  %%xmm1, %%xmm0        \n\t"
125                "pavgw  %%xmm5, %%xmm4        \n\t"
126                "psubw  %%xmm7, %%xmm0        \n\t"
127                "psubw  %%xmm7, %%xmm4        \n\t"
128                "psraw      $1, %%xmm0        \n\t"
129                "psraw      $1, %%xmm4        \n\t"
130                "movdqa   (%0), %%xmm1        \n\t"
131                "movdqa 16(%0), %%xmm5        \n\t"
132                "paddw  %%xmm1, %%xmm0        \n\t"
133                "paddw  %%xmm5, %%xmm4        \n\t"
134                "psraw      $2, %%xmm0        \n\t"
135                "psraw      $2, %%xmm4        \n\t"
136                "paddw  %%xmm1, %%xmm0        \n\t"
137                "paddw  %%xmm5, %%xmm4        \n\t"
138                "movdqa %%xmm0, (%0)          \n\t"
139                "movdqa %%xmm4, 16(%0)        \n\t"
140                :: "r"(&b[i]), "r"(&ref[i])
141                : "memory"
142            );
143        }
144        snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
145        b[0] = b_0 + ((2 * ref[1] + W_BO-1 + 4 * b_0) >> W_BS);
146    }
147
148    { // Lift 3
149        IDWTELEM * const src = b+w2;
150
151        i = 0;
152        for(; (((x86_reg)&temp[i]) & 0x1F) && i<w_r; i++){
153            temp[i] = src[i] - ((-W_AM*(b[i] + b[i+1]))>>W_AS);
154        }
155        for(; i<w_r-7; i+=8){
156            __asm__ volatile(
157                "movdqu  2(%1), %%xmm2        \n\t"
158                "movdqu 18(%1), %%xmm6        \n\t"
159                "paddw    (%1), %%xmm2        \n\t"
160                "paddw  16(%1), %%xmm6        \n\t"
161                "movdqu   (%0), %%xmm0        \n\t"
162                "movdqu 16(%0), %%xmm4        \n\t"
163                "paddw  %%xmm2, %%xmm0        \n\t"
164                "paddw  %%xmm6, %%xmm4        \n\t"
165                "psraw      $1, %%xmm2        \n\t"
166                "psraw      $1, %%xmm6        \n\t"
167                "paddw  %%xmm0, %%xmm2        \n\t"
168                "paddw  %%xmm4, %%xmm6        \n\t"
169                "movdqa %%xmm2, (%2)          \n\t"
170                "movdqa %%xmm6, 16(%2)        \n\t"
171                :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
172                 : "memory"
173               );
174        }
175        snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
176    }
177
178    {
179        snow_interleave_line_header(&i, width, b, temp);
180
181        for (; (i & 0x3E) != 0x3E; i-=2){
182            b[i+1] = temp[i>>1];
183            b[i] = b[i>>1];
184        }
185        for (i-=62; i>=0; i-=64){
186            __asm__ volatile(
187                "movdqa      (%1), %%xmm0       \n\t"
188                "movdqa    16(%1), %%xmm2       \n\t"
189                "movdqa    32(%1), %%xmm4       \n\t"
190                "movdqa    48(%1), %%xmm6       \n\t"
191                "movdqa      (%1), %%xmm1       \n\t"
192                "movdqa    16(%1), %%xmm3       \n\t"
193                "movdqa    32(%1), %%xmm5       \n\t"
194                "movdqa    48(%1), %%xmm7       \n\t"
195                "punpcklwd   (%2), %%xmm0       \n\t"
196                "punpcklwd 16(%2), %%xmm2       \n\t"
197                "punpcklwd 32(%2), %%xmm4       \n\t"
198                "punpcklwd 48(%2), %%xmm6       \n\t"
199                "movdqa    %%xmm0, (%0)         \n\t"
200                "movdqa    %%xmm2, 32(%0)       \n\t"
201                "movdqa    %%xmm4, 64(%0)       \n\t"
202                "movdqa    %%xmm6, 96(%0)       \n\t"
203                "punpckhwd   (%2), %%xmm1       \n\t"
204                "punpckhwd 16(%2), %%xmm3       \n\t"
205                "punpckhwd 32(%2), %%xmm5       \n\t"
206                "punpckhwd 48(%2), %%xmm7       \n\t"
207                "movdqa    %%xmm1, 16(%0)       \n\t"
208                "movdqa    %%xmm3, 48(%0)       \n\t"
209                "movdqa    %%xmm5, 80(%0)       \n\t"
210                "movdqa    %%xmm7, 112(%0)      \n\t"
211                :: "r"(&(b)[i]), "r"(&(b)[i>>1]), "r"(&(temp)[i>>1])
212                 : "memory"
213               );
214        }
215    }
216}
217
218static void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, int width){
219    const int w2= (width+1)>>1;
220    IDWTELEM temp[width >> 1];
221    const int w_l= (width>>1);
222    const int w_r= w2 - 1;
223    int i;
224
225    { // Lift 0
226        IDWTELEM * const ref = b + w2 - 1;
227
228        i = 1;
229        b[0] = b[0] - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
230        __asm__ volatile(
231            "pcmpeqw    %%mm7, %%mm7         \n\t"
232            "pcmpeqw    %%mm3, %%mm3         \n\t"
233            "psllw         $1, %%mm3         \n\t"
234            "paddw      %%mm7, %%mm3         \n\t"
235            "psllw        $13, %%mm3         \n\t"
236           ::);
237        for(; i<w_l-7; i+=8){
238            __asm__ volatile(
239                "movq     (%1), %%mm2        \n\t"
240                "movq    8(%1), %%mm6        \n\t"
241                "paddw   2(%1), %%mm2        \n\t"
242                "paddw  10(%1), %%mm6        \n\t"
243                "paddw   %%mm7, %%mm2        \n\t"
244                "paddw   %%mm7, %%mm6        \n\t"
245                "pmulhw  %%mm3, %%mm2        \n\t"
246                "pmulhw  %%mm3, %%mm6        \n\t"
247                "paddw    (%0), %%mm2        \n\t"
248                "paddw   8(%0), %%mm6        \n\t"
249                "movq    %%mm2, (%0)         \n\t"
250                "movq    %%mm6, 8(%0)        \n\t"
251                :: "r"(&b[i]), "r"(&ref[i])
252                 : "memory"
253               );
254        }
255        snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
256    }
257
258    { // Lift 1
259        IDWTELEM * const dst = b+w2;
260
261        i = 0;
262        for(; i<w_r-7; i+=8){
263            __asm__ volatile(
264                "movq     (%1), %%mm2        \n\t"
265                "movq    8(%1), %%mm6        \n\t"
266                "paddw   2(%1), %%mm2        \n\t"
267                "paddw  10(%1), %%mm6        \n\t"
268                "movq     (%0), %%mm0        \n\t"
269                "movq    8(%0), %%mm4        \n\t"
270                "psubw   %%mm2, %%mm0        \n\t"
271                "psubw   %%mm6, %%mm4        \n\t"
272                "movq    %%mm0, (%0)         \n\t"
273                "movq    %%mm4, 8(%0)        \n\t"
274                :: "r"(&dst[i]), "r"(&b[i])
275                 : "memory"
276               );
277        }
278        snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
279    }
280
281    { // Lift 2
282        IDWTELEM * const ref = b+w2 - 1;
283
284        i = 1;
285        b[0] = b[0] + (((2 * ref[1] + W_BO) + 4 * b[0]) >> W_BS);
286        __asm__ volatile(
287            "psllw         $15, %%mm7        \n\t"
288            "pcmpeqw     %%mm6, %%mm6        \n\t"
289            "psrlw         $13, %%mm6        \n\t"
290            "paddw       %%mm7, %%mm6        \n\t"
291           ::);
292        for(; i<w_l-7; i+=8){
293            __asm__ volatile(
294                "movq     (%1), %%mm0        \n\t"
295                "movq    8(%1), %%mm4        \n\t"
296                "movq    2(%1), %%mm1        \n\t"
297                "movq   10(%1), %%mm5        \n\t"
298                "paddw   %%mm6, %%mm0        \n\t"
299                "paddw   %%mm6, %%mm4        \n\t"
300                "paddw   %%mm7, %%mm1        \n\t"
301                "paddw   %%mm7, %%mm5        \n\t"
302                "pavgw   %%mm1, %%mm0        \n\t"
303                "pavgw   %%mm5, %%mm4        \n\t"
304                "psubw   %%mm7, %%mm0        \n\t"
305                "psubw   %%mm7, %%mm4        \n\t"
306                "psraw      $1, %%mm0        \n\t"
307                "psraw      $1, %%mm4        \n\t"
308                "movq     (%0), %%mm1        \n\t"
309                "movq    8(%0), %%mm5        \n\t"
310                "paddw   %%mm1, %%mm0        \n\t"
311                "paddw   %%mm5, %%mm4        \n\t"
312                "psraw      $2, %%mm0        \n\t"
313                "psraw      $2, %%mm4        \n\t"
314                "paddw   %%mm1, %%mm0        \n\t"
315                "paddw   %%mm5, %%mm4        \n\t"
316                "movq    %%mm0, (%0)         \n\t"
317                "movq    %%mm4, 8(%0)        \n\t"
318                :: "r"(&b[i]), "r"(&ref[i])
319                 : "memory"
320               );
321        }
322        snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
323    }
324
325    { // Lift 3
326        IDWTELEM * const src = b+w2;
327        i = 0;
328
329        for(; i<w_r-7; i+=8){
330            __asm__ volatile(
331                "movq    2(%1), %%mm2        \n\t"
332                "movq   10(%1), %%mm6        \n\t"
333                "paddw    (%1), %%mm2        \n\t"
334                "paddw   8(%1), %%mm6        \n\t"
335                "movq     (%0), %%mm0        \n\t"
336                "movq    8(%0), %%mm4        \n\t"
337                "paddw   %%mm2, %%mm0        \n\t"
338                "paddw   %%mm6, %%mm4        \n\t"
339                "psraw      $1, %%mm2        \n\t"
340                "psraw      $1, %%mm6        \n\t"
341                "paddw   %%mm0, %%mm2        \n\t"
342                "paddw   %%mm4, %%mm6        \n\t"
343                "movq    %%mm2, (%2)         \n\t"
344                "movq    %%mm6, 8(%2)        \n\t"
345                :: "r"(&src[i]), "r"(&b[i]), "r"(&temp[i])
346                 : "memory"
347               );
348        }
349        snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -W_AM, W_AO+1, W_AS);
350    }
351
352    {
353        snow_interleave_line_header(&i, width, b, temp);
354
355        for (; (i & 0x1E) != 0x1E; i-=2){
356            b[i+1] = temp[i>>1];
357            b[i] = b[i>>1];
358        }
359        for (i-=30; i>=0; i-=32){
360            __asm__ volatile(
361                "movq        (%1), %%mm0       \n\t"
362                "movq       8(%1), %%mm2       \n\t"
363                "movq      16(%1), %%mm4       \n\t"
364                "movq      24(%1), %%mm6       \n\t"
365                "movq        (%1), %%mm1       \n\t"
366                "movq       8(%1), %%mm3       \n\t"
367                "movq      16(%1), %%mm5       \n\t"
368                "movq      24(%1), %%mm7       \n\t"
369                "punpcklwd   (%2), %%mm0       \n\t"
370                "punpcklwd  8(%2), %%mm2       \n\t"
371                "punpcklwd 16(%2), %%mm4       \n\t"
372                "punpcklwd 24(%2), %%mm6       \n\t"
373                "movq       %%mm0, (%0)        \n\t"
374                "movq       %%mm2, 16(%0)      \n\t"
375                "movq       %%mm4, 32(%0)      \n\t"
376                "movq       %%mm6, 48(%0)      \n\t"
377                "punpckhwd   (%2), %%mm1       \n\t"
378                "punpckhwd  8(%2), %%mm3       \n\t"
379                "punpckhwd 16(%2), %%mm5       \n\t"
380                "punpckhwd 24(%2), %%mm7       \n\t"
381                "movq       %%mm1, 8(%0)       \n\t"
382                "movq       %%mm3, 24(%0)      \n\t"
383                "movq       %%mm5, 40(%0)      \n\t"
384                "movq       %%mm7, 56(%0)      \n\t"
385                :: "r"(&b[i]), "r"(&b[i>>1]), "r"(&temp[i>>1])
386                 : "memory"
387               );
388        }
389    }
390}
391
392#if HAVE_7REGS
393#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
394        ""op" ("r",%%"REG_d"), %%"t0"      \n\t"\
395        ""op" 16("r",%%"REG_d"), %%"t1"    \n\t"\
396        ""op" 32("r",%%"REG_d"), %%"t2"    \n\t"\
397        ""op" 48("r",%%"REG_d"), %%"t3"    \n\t"
398
399#define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
400        snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
401
402#define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
403        snow_vertical_compose_sse2_load_add("paddw",r,t0,t1,t2,t3)
404
405#define snow_vertical_compose_r2r_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
406        "psubw %%"s0", %%"t0" \n\t"\
407        "psubw %%"s1", %%"t1" \n\t"\
408        "psubw %%"s2", %%"t2" \n\t"\
409        "psubw %%"s3", %%"t3" \n\t"
410
411#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
412        "movdqa %%"s0", ("w",%%"REG_d")      \n\t"\
413        "movdqa %%"s1", 16("w",%%"REG_d")    \n\t"\
414        "movdqa %%"s2", 32("w",%%"REG_d")    \n\t"\
415        "movdqa %%"s3", 48("w",%%"REG_d")    \n\t"
416
417#define snow_vertical_compose_sra(n,t0,t1,t2,t3)\
418        "psraw $"n", %%"t0" \n\t"\
419        "psraw $"n", %%"t1" \n\t"\
420        "psraw $"n", %%"t2" \n\t"\
421        "psraw $"n", %%"t3" \n\t"
422
423#define snow_vertical_compose_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
424        "paddw %%"s0", %%"t0" \n\t"\
425        "paddw %%"s1", %%"t1" \n\t"\
426        "paddw %%"s2", %%"t2" \n\t"\
427        "paddw %%"s3", %%"t3" \n\t"
428
429#define snow_vertical_compose_r2r_pmulhw(s0,s1,s2,s3,t0,t1,t2,t3)\
430        "pmulhw %%"s0", %%"t0" \n\t"\
431        "pmulhw %%"s1", %%"t1" \n\t"\
432        "pmulhw %%"s2", %%"t2" \n\t"\
433        "pmulhw %%"s3", %%"t3" \n\t"
434
435#define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
436        "movdqa %%"s0", %%"t0" \n\t"\
437        "movdqa %%"s1", %%"t1" \n\t"\
438        "movdqa %%"s2", %%"t2" \n\t"\
439        "movdqa %%"s3", %%"t3" \n\t"
440
441static void ff_snow_vertical_compose97i_sse2(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
442    x86_reg i = width;
443
444    while(i & 0x1F)
445    {
446        i--;
447        b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
448        b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
449        b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
450        b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
451    }
452    i+=i;
453
454         __asm__ volatile (
455        "jmp 2f                                      \n\t"
456        "1:                                          \n\t"
457        snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
458        snow_vertical_compose_sse2_add("%6","xmm0","xmm2","xmm4","xmm6")
459
460
461        "pcmpeqw    %%xmm0, %%xmm0                   \n\t"
462        "pcmpeqw    %%xmm2, %%xmm2                   \n\t"
463        "paddw      %%xmm2, %%xmm2                   \n\t"
464        "paddw      %%xmm0, %%xmm2                   \n\t"
465        "psllw         $13, %%xmm2                   \n\t"
466        snow_vertical_compose_r2r_add("xmm0","xmm0","xmm0","xmm0","xmm1","xmm3","xmm5","xmm7")
467        snow_vertical_compose_r2r_pmulhw("xmm2","xmm2","xmm2","xmm2","xmm1","xmm3","xmm5","xmm7")
468        snow_vertical_compose_sse2_add("%5","xmm1","xmm3","xmm5","xmm7")
469        snow_vertical_compose_sse2_store("%5","xmm1","xmm3","xmm5","xmm7")
470        snow_vertical_compose_sse2_load("%4","xmm0","xmm2","xmm4","xmm6")
471        snow_vertical_compose_sse2_add("%3","xmm1","xmm3","xmm5","xmm7")
472        snow_vertical_compose_r2r_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
473        snow_vertical_compose_sse2_store("%4","xmm0","xmm2","xmm4","xmm6")
474
475        "pcmpeqw %%xmm7, %%xmm7                      \n\t"
476        "pcmpeqw %%xmm5, %%xmm5                      \n\t"
477        "psllw $15, %%xmm7                           \n\t"
478        "psrlw $13, %%xmm5                           \n\t"
479        "paddw %%xmm7, %%xmm5                        \n\t"
480        snow_vertical_compose_r2r_add("xmm5","xmm5","xmm5","xmm5","xmm0","xmm2","xmm4","xmm6")
481        "movq   (%2,%%"REG_d"), %%xmm1        \n\t"
482        "movq  8(%2,%%"REG_d"), %%xmm3        \n\t"
483        "paddw %%xmm7, %%xmm1                        \n\t"
484        "paddw %%xmm7, %%xmm3                        \n\t"
485        "pavgw %%xmm1, %%xmm0                        \n\t"
486        "pavgw %%xmm3, %%xmm2                        \n\t"
487        "movq 16(%2,%%"REG_d"), %%xmm1        \n\t"
488        "movq 24(%2,%%"REG_d"), %%xmm3        \n\t"
489        "paddw %%xmm7, %%xmm1                        \n\t"
490        "paddw %%xmm7, %%xmm3                        \n\t"
491        "pavgw %%xmm1, %%xmm4                        \n\t"
492        "pavgw %%xmm3, %%xmm6                        \n\t"
493        snow_vertical_compose_r2r_sub("xmm7","xmm7","xmm7","xmm7","xmm0","xmm2","xmm4","xmm6")
494        snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
495        snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
496
497        snow_vertical_compose_sra("2","xmm0","xmm2","xmm4","xmm6")
498        snow_vertical_compose_sse2_add("%3","xmm0","xmm2","xmm4","xmm6")
499        snow_vertical_compose_sse2_store("%3","xmm0","xmm2","xmm4","xmm6")
500        snow_vertical_compose_sse2_add("%1","xmm0","xmm2","xmm4","xmm6")
501        snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
502        snow_vertical_compose_sra("1","xmm0","xmm2","xmm4","xmm6")
503        snow_vertical_compose_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
504        snow_vertical_compose_sse2_add("%2","xmm0","xmm2","xmm4","xmm6")
505        snow_vertical_compose_sse2_store("%2","xmm0","xmm2","xmm4","xmm6")
506
507        "2:                                          \n\t"
508        "sub $64, %%"REG_d"                          \n\t"
509        "jge 1b                                      \n\t"
510        :"+d"(i)
511        :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
512}
513
514#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
515        ""op" ("r",%%"REG_d"), %%"t0"   \n\t"\
516        ""op" 8("r",%%"REG_d"), %%"t1"  \n\t"\
517        ""op" 16("r",%%"REG_d"), %%"t2" \n\t"\
518        ""op" 24("r",%%"REG_d"), %%"t3" \n\t"
519
520#define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
521        snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
522
523#define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
524        snow_vertical_compose_mmx_load_add("paddw",r,t0,t1,t2,t3)
525
526#define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
527        "movq %%"s0", ("w",%%"REG_d")   \n\t"\
528        "movq %%"s1", 8("w",%%"REG_d")  \n\t"\
529        "movq %%"s2", 16("w",%%"REG_d") \n\t"\
530        "movq %%"s3", 24("w",%%"REG_d") \n\t"
531
532#define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
533        "movq %%"s0", %%"t0" \n\t"\
534        "movq %%"s1", %%"t1" \n\t"\
535        "movq %%"s2", %%"t2" \n\t"\
536        "movq %%"s3", %%"t3" \n\t"
537
538
539static void ff_snow_vertical_compose97i_mmx(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
540    x86_reg i = width;
541    while(i & 15)
542    {
543        i--;
544        b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
545        b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
546        b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
547        b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
548    }
549    i+=i;
550    __asm__ volatile(
551        "jmp 2f                                      \n\t"
552        "1:                                          \n\t"
553
554        snow_vertical_compose_mmx_load("%4","mm1","mm3","mm5","mm7")
555        snow_vertical_compose_mmx_add("%6","mm1","mm3","mm5","mm7")
556        "pcmpeqw    %%mm0, %%mm0                     \n\t"
557        "pcmpeqw    %%mm2, %%mm2                     \n\t"
558        "paddw      %%mm2, %%mm2                     \n\t"
559        "paddw      %%mm0, %%mm2                     \n\t"
560        "psllw        $13, %%mm2                     \n\t"
561        snow_vertical_compose_r2r_add("mm0","mm0","mm0","mm0","mm1","mm3","mm5","mm7")
562        snow_vertical_compose_r2r_pmulhw("mm2","mm2","mm2","mm2","mm1","mm3","mm5","mm7")
563        snow_vertical_compose_mmx_add("%5","mm1","mm3","mm5","mm7")
564        snow_vertical_compose_mmx_store("%5","mm1","mm3","mm5","mm7")
565        snow_vertical_compose_mmx_load("%4","mm0","mm2","mm4","mm6")
566        snow_vertical_compose_mmx_add("%3","mm1","mm3","mm5","mm7")
567        snow_vertical_compose_r2r_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
568        snow_vertical_compose_mmx_store("%4","mm0","mm2","mm4","mm6")
569        "pcmpeqw %%mm7, %%mm7                        \n\t"
570        "pcmpeqw %%mm5, %%mm5                        \n\t"
571        "psllw $15, %%mm7                            \n\t"
572        "psrlw $13, %%mm5                            \n\t"
573        "paddw %%mm7, %%mm5                          \n\t"
574        snow_vertical_compose_r2r_add("mm5","mm5","mm5","mm5","mm0","mm2","mm4","mm6")
575        "movq   (%2,%%"REG_d"), %%mm1         \n\t"
576        "movq  8(%2,%%"REG_d"), %%mm3         \n\t"
577        "paddw %%mm7, %%mm1                          \n\t"
578        "paddw %%mm7, %%mm3                          \n\t"
579        "pavgw %%mm1, %%mm0                          \n\t"
580        "pavgw %%mm3, %%mm2                          \n\t"
581        "movq 16(%2,%%"REG_d"), %%mm1         \n\t"
582        "movq 24(%2,%%"REG_d"), %%mm3         \n\t"
583        "paddw %%mm7, %%mm1                          \n\t"
584        "paddw %%mm7, %%mm3                          \n\t"
585        "pavgw %%mm1, %%mm4                          \n\t"
586        "pavgw %%mm3, %%mm6                          \n\t"
587        snow_vertical_compose_r2r_sub("mm7","mm7","mm7","mm7","mm0","mm2","mm4","mm6")
588        snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
589        snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
590
591        snow_vertical_compose_sra("2","mm0","mm2","mm4","mm6")
592        snow_vertical_compose_mmx_add("%3","mm0","mm2","mm4","mm6")
593        snow_vertical_compose_mmx_store("%3","mm0","mm2","mm4","mm6")
594        snow_vertical_compose_mmx_add("%1","mm0","mm2","mm4","mm6")
595        snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
596        snow_vertical_compose_sra("1","mm0","mm2","mm4","mm6")
597        snow_vertical_compose_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
598        snow_vertical_compose_mmx_add("%2","mm0","mm2","mm4","mm6")
599        snow_vertical_compose_mmx_store("%2","mm0","mm2","mm4","mm6")
600
601        "2:                                          \n\t"
602        "sub $32, %%"REG_d"                          \n\t"
603        "jge 1b                                      \n\t"
604        :"+d"(i)
605        :"r"(b0),"r"(b1),"r"(b2),"r"(b3),"r"(b4),"r"(b5));
606}
607#endif //HAVE_7REGS
608
609#define snow_inner_add_yblock_sse2_header \
610    IDWTELEM * * dst_array = sb->line + src_y;\
611    x86_reg tmp;\
612    __asm__ volatile(\
613             "mov  %7, %%"REG_c"             \n\t"\
614             "mov  %6, %2                    \n\t"\
615             "mov  %4, %%"REG_S"             \n\t"\
616             "pxor %%xmm7, %%xmm7            \n\t" /* 0 */\
617             "pcmpeqd %%xmm3, %%xmm3         \n\t"\
618             "psllw $15, %%xmm3              \n\t"\
619             "psrlw $12, %%xmm3              \n\t" /* FRAC_BITS >> 1 */\
620             "1:                             \n\t"\
621             "mov %1, %%"REG_D"              \n\t"\
622             "mov (%%"REG_D"), %%"REG_D"     \n\t"\
623             "add %3, %%"REG_D"              \n\t"
624
625#define snow_inner_add_yblock_sse2_start_8(out_reg1, out_reg2, ptr_offset, s_offset)\
626             "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
627             "movq (%%"REG_d"), %%"out_reg1" \n\t"\
628             "movq (%%"REG_d", %%"REG_c"), %%"out_reg2" \n\t"\
629             "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
630             "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
631             "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
632             "movq "s_offset"+16(%%"REG_S"), %%xmm4 \n\t"\
633             "punpcklbw %%xmm7, %%xmm0       \n\t"\
634             "punpcklbw %%xmm7, %%xmm4       \n\t"\
635             "pmullw %%xmm0, %%"out_reg1"    \n\t"\
636             "pmullw %%xmm4, %%"out_reg2"    \n\t"
637
638#define snow_inner_add_yblock_sse2_start_16(out_reg1, out_reg2, ptr_offset, s_offset)\
639             "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
640             "movq (%%"REG_d"), %%"out_reg1" \n\t"\
641             "movq 8(%%"REG_d"), %%"out_reg2" \n\t"\
642             "punpcklbw %%xmm7, %%"out_reg1" \n\t"\
643             "punpcklbw %%xmm7, %%"out_reg2" \n\t"\
644             "movq "s_offset"(%%"REG_S"), %%xmm0 \n\t"\
645             "movq "s_offset"+8(%%"REG_S"), %%xmm4 \n\t"\
646             "punpcklbw %%xmm7, %%xmm0       \n\t"\
647             "punpcklbw %%xmm7, %%xmm4       \n\t"\
648             "pmullw %%xmm0, %%"out_reg1"    \n\t"\
649             "pmullw %%xmm4, %%"out_reg2"    \n\t"
650
651#define snow_inner_add_yblock_sse2_accum_8(ptr_offset, s_offset) \
652             snow_inner_add_yblock_sse2_start_8("xmm2", "xmm6", ptr_offset, s_offset)\
653             "paddusw %%xmm2, %%xmm1         \n\t"\
654             "paddusw %%xmm6, %%xmm5         \n\t"
655
656#define snow_inner_add_yblock_sse2_accum_16(ptr_offset, s_offset) \
657             snow_inner_add_yblock_sse2_start_16("xmm2", "xmm6", ptr_offset, s_offset)\
658             "paddusw %%xmm2, %%xmm1         \n\t"\
659             "paddusw %%xmm6, %%xmm5         \n\t"
660
661#define snow_inner_add_yblock_sse2_end_common1\
662             "add $32, %%"REG_S"             \n\t"\
663             "add %%"REG_c", %0              \n\t"\
664             "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
665             "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
666             "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
667             "add %%"REG_c", (%%"REG_a")     \n\t"
668
669#define snow_inner_add_yblock_sse2_end_common2\
670             "jnz 1b                         \n\t"\
671             :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
672             :\
673             "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
674             "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
675
676#define snow_inner_add_yblock_sse2_end_8\
677             "sal $1, %%"REG_c"              \n\t"\
678             "add"OPSIZE" $"PTR_SIZE"*2, %1  \n\t"\
679             snow_inner_add_yblock_sse2_end_common1\
680             "sar $1, %%"REG_c"              \n\t"\
681             "sub $2, %2                     \n\t"\
682             snow_inner_add_yblock_sse2_end_common2
683
684#define snow_inner_add_yblock_sse2_end_16\
685             "add"OPSIZE" $"PTR_SIZE"*1, %1  \n\t"\
686             snow_inner_add_yblock_sse2_end_common1\
687             "dec %2                         \n\t"\
688             snow_inner_add_yblock_sse2_end_common2
689
690static void inner_add_yblock_bw_8_obmc_16_bh_even_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
691                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
692snow_inner_add_yblock_sse2_header
693snow_inner_add_yblock_sse2_start_8("xmm1", "xmm5", "3", "0")
694snow_inner_add_yblock_sse2_accum_8("2", "8")
695snow_inner_add_yblock_sse2_accum_8("1", "128")
696snow_inner_add_yblock_sse2_accum_8("0", "136")
697
698             "mov %0, %%"REG_d"              \n\t"
699             "movdqa (%%"REG_D"), %%xmm0     \n\t"
700             "movdqa %%xmm1, %%xmm2          \n\t"
701
702             "punpckhwd %%xmm7, %%xmm1       \n\t"
703             "punpcklwd %%xmm7, %%xmm2       \n\t"
704             "paddd %%xmm2, %%xmm0           \n\t"
705             "movdqa 16(%%"REG_D"), %%xmm2   \n\t"
706             "paddd %%xmm1, %%xmm2           \n\t"
707             "paddd %%xmm3, %%xmm0           \n\t"
708             "paddd %%xmm3, %%xmm2           \n\t"
709
710             "mov %1, %%"REG_D"              \n\t"
711             "mov "PTR_SIZE"(%%"REG_D"), %%"REG_D";\n\t"
712             "add %3, %%"REG_D"              \n\t"
713
714             "movdqa (%%"REG_D"), %%xmm4     \n\t"
715             "movdqa %%xmm5, %%xmm6          \n\t"
716             "punpckhwd %%xmm7, %%xmm5       \n\t"
717             "punpcklwd %%xmm7, %%xmm6       \n\t"
718             "paddd %%xmm6, %%xmm4           \n\t"
719             "movdqa 16(%%"REG_D"), %%xmm6   \n\t"
720             "paddd %%xmm5, %%xmm6           \n\t"
721             "paddd %%xmm3, %%xmm4           \n\t"
722             "paddd %%xmm3, %%xmm6           \n\t"
723
724             "psrad $8, %%xmm0               \n\t" /* FRAC_BITS. */
725             "psrad $8, %%xmm2               \n\t" /* FRAC_BITS. */
726             "packssdw %%xmm2, %%xmm0        \n\t"
727             "packuswb %%xmm7, %%xmm0        \n\t"
728             "movq %%xmm0, (%%"REG_d")       \n\t"
729
730             "psrad $8, %%xmm4               \n\t" /* FRAC_BITS. */
731             "psrad $8, %%xmm6               \n\t" /* FRAC_BITS. */
732             "packssdw %%xmm6, %%xmm4        \n\t"
733             "packuswb %%xmm7, %%xmm4        \n\t"
734             "movq %%xmm4, (%%"REG_d",%%"REG_c");\n\t"
735snow_inner_add_yblock_sse2_end_8
736}
737
738static void inner_add_yblock_bw_16_obmc_32_sse2(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
739                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
740snow_inner_add_yblock_sse2_header
741snow_inner_add_yblock_sse2_start_16("xmm1", "xmm5", "3", "0")
742snow_inner_add_yblock_sse2_accum_16("2", "16")
743snow_inner_add_yblock_sse2_accum_16("1", "512")
744snow_inner_add_yblock_sse2_accum_16("0", "528")
745
746             "mov %0, %%"REG_d"              \n\t"
747             "psrlw $4, %%xmm1               \n\t"
748             "psrlw $4, %%xmm5               \n\t"
749             "paddw   (%%"REG_D"), %%xmm1    \n\t"
750             "paddw 16(%%"REG_D"), %%xmm5    \n\t"
751             "paddw %%xmm3, %%xmm1           \n\t"
752             "paddw %%xmm3, %%xmm5           \n\t"
753             "psraw $4, %%xmm1               \n\t" /* FRAC_BITS. */
754             "psraw $4, %%xmm5               \n\t" /* FRAC_BITS. */
755             "packuswb %%xmm5, %%xmm1        \n\t"
756
757             "movdqu %%xmm1, (%%"REG_d")       \n\t"
758
759snow_inner_add_yblock_sse2_end_16
760}
761
762#define snow_inner_add_yblock_mmx_header \
763    IDWTELEM * * dst_array = sb->line + src_y;\
764    x86_reg tmp;\
765    __asm__ volatile(\
766             "mov  %7, %%"REG_c"             \n\t"\
767             "mov  %6, %2                    \n\t"\
768             "mov  %4, %%"REG_S"             \n\t"\
769             "pxor %%mm7, %%mm7              \n\t" /* 0 */\
770             "pcmpeqd %%mm3, %%mm3           \n\t"\
771             "psllw $15, %%mm3               \n\t"\
772             "psrlw $12, %%mm3               \n\t" /* FRAC_BITS >> 1 */\
773             "1:                             \n\t"\
774             "mov %1, %%"REG_D"              \n\t"\
775             "mov (%%"REG_D"), %%"REG_D"     \n\t"\
776             "add %3, %%"REG_D"              \n\t"
777
778#define snow_inner_add_yblock_mmx_start(out_reg1, out_reg2, ptr_offset, s_offset, d_offset)\
779             "mov "PTR_SIZE"*"ptr_offset"(%%"REG_a"), %%"REG_d"; \n\t"\
780             "movd "d_offset"(%%"REG_d"), %%"out_reg1" \n\t"\
781             "movd "d_offset"+4(%%"REG_d"), %%"out_reg2" \n\t"\
782             "punpcklbw %%mm7, %%"out_reg1" \n\t"\
783             "punpcklbw %%mm7, %%"out_reg2" \n\t"\
784             "movd "s_offset"(%%"REG_S"), %%mm0 \n\t"\
785             "movd "s_offset"+4(%%"REG_S"), %%mm4 \n\t"\
786             "punpcklbw %%mm7, %%mm0       \n\t"\
787             "punpcklbw %%mm7, %%mm4       \n\t"\
788             "pmullw %%mm0, %%"out_reg1"    \n\t"\
789             "pmullw %%mm4, %%"out_reg2"    \n\t"
790
791#define snow_inner_add_yblock_mmx_accum(ptr_offset, s_offset, d_offset) \
792             snow_inner_add_yblock_mmx_start("mm2", "mm6", ptr_offset, s_offset, d_offset)\
793             "paddusw %%mm2, %%mm1         \n\t"\
794             "paddusw %%mm6, %%mm5         \n\t"
795
796#define snow_inner_add_yblock_mmx_mix(read_offset, write_offset)\
797             "mov %0, %%"REG_d"              \n\t"\
798             "psrlw $4, %%mm1                \n\t"\
799             "psrlw $4, %%mm5                \n\t"\
800             "paddw "read_offset"(%%"REG_D"), %%mm1 \n\t"\
801             "paddw "read_offset"+8(%%"REG_D"), %%mm5 \n\t"\
802             "paddw %%mm3, %%mm1             \n\t"\
803             "paddw %%mm3, %%mm5             \n\t"\
804             "psraw $4, %%mm1                \n\t"\
805             "psraw $4, %%mm5                \n\t"\
806             "packuswb %%mm5, %%mm1          \n\t"\
807             "movq %%mm1, "write_offset"(%%"REG_d") \n\t"
808
809#define snow_inner_add_yblock_mmx_end(s_step)\
810             "add $"s_step", %%"REG_S"             \n\t"\
811             "add %%"REG_c", "PTR_SIZE"*3(%%"REG_a");\n\t"\
812             "add %%"REG_c", "PTR_SIZE"*2(%%"REG_a");\n\t"\
813             "add %%"REG_c", "PTR_SIZE"*1(%%"REG_a");\n\t"\
814             "add %%"REG_c", (%%"REG_a")     \n\t"\
815             "add"OPSIZE " $"PTR_SIZE"*1, %1 \n\t"\
816             "add %%"REG_c", %0              \n\t"\
817             "dec %2                         \n\t"\
818             "jnz 1b                         \n\t"\
819             :"+m"(dst8),"+m"(dst_array),"=&r"(tmp)\
820             :\
821             "rm"((x86_reg)(src_x<<1)),"m"(obmc),"a"(block),"m"(b_h),"m"(src_stride):\
822             "%"REG_c"","%"REG_S"","%"REG_D"","%"REG_d"");
823
824static void inner_add_yblock_bw_8_obmc_16_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
825                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
826snow_inner_add_yblock_mmx_header
827snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
828snow_inner_add_yblock_mmx_accum("2", "8", "0")
829snow_inner_add_yblock_mmx_accum("1", "128", "0")
830snow_inner_add_yblock_mmx_accum("0", "136", "0")
831snow_inner_add_yblock_mmx_mix("0", "0")
832snow_inner_add_yblock_mmx_end("16")
833}
834
835static void inner_add_yblock_bw_16_obmc_32_mmx(const uint8_t *obmc, const x86_reg obmc_stride, uint8_t * * block, int b_w, x86_reg b_h,
836                      int src_x, int src_y, x86_reg src_stride, slice_buffer * sb, int add, uint8_t * dst8){
837snow_inner_add_yblock_mmx_header
838snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "0", "0")
839snow_inner_add_yblock_mmx_accum("2", "16", "0")
840snow_inner_add_yblock_mmx_accum("1", "512", "0")
841snow_inner_add_yblock_mmx_accum("0", "528", "0")
842snow_inner_add_yblock_mmx_mix("0", "0")
843
844snow_inner_add_yblock_mmx_start("mm1", "mm5", "3", "8", "8")
845snow_inner_add_yblock_mmx_accum("2", "24", "8")
846snow_inner_add_yblock_mmx_accum("1", "520", "8")
847snow_inner_add_yblock_mmx_accum("0", "536", "8")
848snow_inner_add_yblock_mmx_mix("16", "8")
849snow_inner_add_yblock_mmx_end("32")
850}
851
852static void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
853                           int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
854
855    if (b_w == 16)
856        inner_add_yblock_bw_16_obmc_32_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
857    else if (b_w == 8 && obmc_stride == 16) {
858        if (!(b_h & 1))
859            inner_add_yblock_bw_8_obmc_16_bh_even_sse2(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
860        else
861            inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
862    } else
863         ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
864}
865
866static void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
867                          int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
868    if (b_w == 16)
869        inner_add_yblock_bw_16_obmc_32_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
870    else if (b_w == 8 && obmc_stride == 16)
871        inner_add_yblock_bw_8_obmc_16_mmx(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
872    else
873        ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8);
874}
875
876void ff_dwt_init_x86(DWTContext *c)
877{
878    int mm_flags = av_get_cpu_flags();
879
880    if (mm_flags & AV_CPU_FLAG_MMX) {
881        if(mm_flags & AV_CPU_FLAG_SSE2 & 0){
882            c->horizontal_compose97i = ff_snow_horizontal_compose97i_sse2;
883#if HAVE_7REGS
884            c->vertical_compose97i = ff_snow_vertical_compose97i_sse2;
885#endif
886            c->inner_add_yblock = ff_snow_inner_add_yblock_sse2;
887        }
888        else{
889            if(mm_flags & AV_CPU_FLAG_MMX2){
890            c->horizontal_compose97i = ff_snow_horizontal_compose97i_mmx;
891#if HAVE_7REGS
892            c->vertical_compose97i = ff_snow_vertical_compose97i_mmx;
893#endif
894            }
895            c->inner_add_yblock = ff_snow_inner_add_yblock_mmx;
896        }
897    }
898}