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   1 /*
   2  * VC-1 and WMV3 - DSP functions MMX-optimized
   3  * Copyright (c) 2007 Christophe GISQUET <christophe.gisquet@free.fr>
   4  *
   5  * Permission is hereby granted, free of charge, to any person
   6  * obtaining a copy of this software and associated documentation
   7  * files (the "Software"), to deal in the Software without
   8  * restriction, including without limitation the rights to use,
   9  * copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following
  12  * conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be
  15  * included in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  19  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  21  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  22  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  * OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 #include "dsputil.h"
  28 #include "x86_cpu.h"
  29
  30 /** Add rounder from mm7 to mm3 and pack result at destination */
  31 #define NORMALIZE_MMX(SHIFT)                                    \
  32      "paddw     %%mm7, %%mm3           \n\t" /* +bias-r */      \
  33      "paddw     %%mm7, %%mm4           \n\t" /* +bias-r */      \
  34      "psraw     "SHIFT", %%mm3         \n\t"                    \
  35      "psraw     "SHIFT", %%mm4         \n\t"
  36
  37 #define TRANSFER_DO_PACK                        \
  38      "packuswb  %%mm4, %%mm3           \n\t"    \
  39      "movq      %%mm3, (%2)            \n\t"
  40
  41 #define TRANSFER_DONT_PACK                      \
  42      "movq      %%mm3, 0(%2)           \n\t"    \
  43      "movq      %%mm4, 8(%2)           \n\t"
  44
  45 /** @see MSPEL_FILTER13_CORE for use as UNPACK macro */
  46 #define DO_UNPACK(reg)  "punpcklbw %%mm0, " reg "\n\t"
  47 #define DONT_UNPACK(reg)
  48
  49 /** Compute the rounder 32-r or 8-r and unpacks it to mm7 */
  50 #define LOAD_ROUNDER_MMX(ROUND)                 \
  51      "movd      "ROUND", %%mm7         \n\t"    \
  52      "punpcklwd %%mm7, %%mm7           \n\t"    \
  53      "punpckldq %%mm7, %%mm7           \n\t"
  54
  55 #define SHIFT2_LINE(OFF, R0,R1,R2,R3)           \
  56     "paddw     %%mm"#R2", %%mm"#R1"    \n\t"    \
  57     "movd      (%1,%4), %%mm"#R0"      \n\t"    \
  58     "pmullw    %%mm6, %%mm"#R1"        \n\t"    \
  59     "punpcklbw %%mm0, %%mm"#R0"        \n\t"    \
  60     "movd      (%1,%3), %%mm"#R3"      \n\t"    \
  61     "psubw     %%mm"#R0", %%mm"#R1"    \n\t"    \
  62     "punpcklbw %%mm0, %%mm"#R3"        \n\t"    \
  63     "paddw     %%mm7, %%mm"#R1"        \n\t"    \
  64     "psubw     %%mm"#R3", %%mm"#R1"    \n\t"    \
  65     "psraw     %5, %%mm"#R1"           \n\t"    \
  66     "movq      %%mm"#R1", "#OFF"(%2)   \n\t"    \
  67     "add       %3, %1                  \n\t"
  68
  69 DECLARE_ALIGNED_16(static const uint64_t, fact_9) = 0x0009000900090009ULL;
  70
  71 /** Sacrifying mm6 allows to pipeline loads from src */
  72 static void vc1_put_ver_16b_shift2_mmx(int16_t *dst,
  73                                        const uint8_t *src, long int stride,
  74                                        int rnd, int64_t shift)
  75 {
  76     int  w = 3;
  77
  78     asm volatile(
  79         LOAD_ROUNDER_MMX("%6")
  80         "movq      %7, %%mm6               \n\t"
  81         "1:                                \n\t"
  82         "movd      (%1), %%mm2             \n\t"
  83         "add       %3, %1                  \n\t"
  84         "movd      (%1), %%mm3             \n\t"
  85         "punpcklbw %%mm0, %%mm2            \n\t"
  86         "punpcklbw %%mm0, %%mm3            \n\t"
  87         SHIFT2_LINE(  0, 1, 2, 3, 4)
  88         SHIFT2_LINE( 24, 2, 3, 4, 1)
  89         SHIFT2_LINE( 48, 3, 4, 1, 2)
  90         SHIFT2_LINE( 72, 4, 1, 2, 3)
  91         SHIFT2_LINE( 96, 1, 2, 3, 4)
  92         SHIFT2_LINE(120, 2, 3, 4, 1)
  93         SHIFT2_LINE(144, 3, 4, 1, 2)
  94         SHIFT2_LINE(168, 4, 1, 2, 3)
  95         "sub       %8, %1                  \n\t"
  96         "add       $8, %2                  \n\t"
  97         "dec       %0                      \n\t"
  98         "jnz 1b                            \n\t"
  99         : "+g"(w), "+r"(src), "+r"(dst)
 100         : "r"(stride), "r"(-2*stride), "m"(shift),
 101           "m"(rnd), "m"(fact_9), "g"(9*stride-4)
 102         : "memory"
 103     );
 104 }
 105
 106 /** To remove bias allowing use of MMX 16bits arithmetic */
 107 DECLARE_ALIGNED_16(static const uint64_t, ff_pw_128) = 0x0080008000800080ULL;
 108
 109 /**
 110  * Data is already unpacked, so some operations can directly be made from
 111  * memory.
 112  */
 113 static void vc1_put_hor_16b_shift2_mmx(uint8_t *dst, long int stride,
 114                                        const int16_t *src, int rnd)
 115 {
 116     int h = 8;
 117
 118     src -= 1;
 119     rnd -= (-1+9+9-1)*1024; /* Add -1024 bias */
 120     asm volatile(
 121         LOAD_ROUNDER_MMX("%4")
 122         "movq      %6, %%mm6               \n\t"
 123         "movq      %5, %%mm5               \n\t"
 124         "1:                                \n\t"
 125         "movq      2*0+0(%1), %%mm1        \n\t"
 126         "movq      2*0+8(%1), %%mm2        \n\t"
 127         "movq      2*1+0(%1), %%mm3        \n\t"
 128         "movq      2*1+8(%1), %%mm4        \n\t"
 129         "paddw     2*3+0(%1), %%mm1        \n\t"
 130         "paddw     2*3+8(%1), %%mm2        \n\t"
 131         "paddw     2*2+0(%1), %%mm3        \n\t"
 132         "paddw     2*2+8(%1), %%mm4        \n\t"
 133         "pmullw    %%mm5, %%mm3            \n\t"
 134         "pmullw    %%mm5, %%mm4            \n\t"
 135         "psubw     %%mm1, %%mm3            \n\t"
 136         "psubw     %%mm2, %%mm4            \n\t"
 137         NORMALIZE_MMX("$7")
 138         /* Remove bias */
 139         "paddw     %%mm6, %%mm3            \n\t"
 140         "paddw     %%mm6, %%mm4            \n\t"
 141         TRANSFER_DO_PACK
 142         "add       $24, %1                 \n\t"
 143         "add       %3, %2                  \n\t"
 144         "dec       %0                      \n\t"
 145         "jnz 1b                            \n\t"
 146         : "+g"(h), "+r" (src),  "+r" (dst)
 147         : "g"(stride), "m"(rnd), "m"(fact_9), "m"(ff_pw_128)
 148         : "memory"
 149     );
 150 }
 151
 152
 153 /**
 154  * Purely vertical or horizontal 1/2 shift interpolation.
 155  * Sacrify mm6 for *9 factor.
 156  */
 157 static void vc1_put_shift2_mmx(uint8_t *dst, const uint8_t *src,
 158                                long int stride, int rnd, long int offset)
 159 {
 160     int h = 8;
 161
 162     rnd = 8-rnd;
 163     asm volatile(
 164         LOAD_ROUNDER_MMX("%6")
 165         "movq      %8, %%mm6               \n\t"
 166         "1:                                \n\t"
 167         "movd      0(%1   ), %%mm3         \n\t"
 168         "movd      4(%1   ), %%mm4         \n\t"
 169         "movd      0(%1,%3), %%mm1         \n\t"
 170         "movd      4(%1,%3), %%mm2         \n\t"
 171         "add       %3, %1                  \n\t"
 172         "punpcklbw %%mm0, %%mm3            \n\t"
 173         "punpcklbw %%mm0, %%mm4            \n\t"
 174         "punpcklbw %%mm0, %%mm1            \n\t"
 175         "punpcklbw %%mm0, %%mm2            \n\t"
 176         "paddw     %%mm1, %%mm3            \n\t"
 177         "paddw     %%mm2, %%mm4            \n\t"
 178         "movd      0(%1,%4), %%mm1         \n\t"
 179         "movd      4(%1,%4), %%mm2         \n\t"
 180         "pmullw    %%mm6, %%mm3            \n\t" /* 0,9,9,0*/
 181         "pmullw    %%mm6, %%mm4            \n\t" /* 0,9,9,0*/
 182         "punpcklbw %%mm0, %%mm1            \n\t"
 183         "punpcklbw %%mm0, %%mm2            \n\t"
 184         "psubw     %%mm1, %%mm3            \n\t" /*-1,9,9,0*/
 185         "psubw     %%mm2, %%mm4            \n\t" /*-1,9,9,0*/
 186         "movd      0(%1,%3), %%mm1         \n\t"
 187         "movd      4(%1,%3), %%mm2         \n\t"
 188         "punpcklbw %%mm0, %%mm1            \n\t"
 189         "punpcklbw %%mm0, %%mm2            \n\t"
 190         "psubw     %%mm1, %%mm3            \n\t" /*-1,9,9,-1*/
 191         "psubw     %%mm2, %%mm4            \n\t" /*-1,9,9,-1*/
 192         NORMALIZE_MMX("$4")
 193         TRANSFER_DO_PACK
 194         "add       %7, %1                  \n\t"
 195         "add       %5, %2                  \n\t"
 196         "dec       %0                      \n\t"
 197         "jnz 1b                            \n\t"
 198         : "+g"(h), "+r"(src),  "+r"(dst)
 199         : "r"(offset), "r"(-2*offset), "g"(stride), "m"(rnd),
 200           "g"(stride-offset), "m"(fact_9)
 201         : "memory"
 202     );
 203 }
 204
 205 /**
 206  * Filter coefficients made global to allow access by all 1 or 3 quarter shift
 207  * interpolation functions.
 208  */
 209 DECLARE_ALIGNED_16(static const uint64_t, fact_53) = 0x0035003500350035ULL;
 210 DECLARE_ALIGNED_16(static const uint64_t, fact_18) = 0x0012001200120012ULL;
 211
 212 /**
 213  * Core of the 1/4 and 3/4 shift bicubic interpolation.
 214  *
 215  * @param UNPACK  Macro unpacking arguments from 8 to 16bits (can be empty).
 216  * @param MOVQ    "movd 1" or "movq 2", if data read is already unpacked.
 217  * @param A1      Address of 1st tap (beware of unpacked/packed).
 218  * @param A2      Address of 2nd tap
 219  * @param A3      Address of 3rd tap
 220  * @param A4      Address of 4th tap
 221  */
 222 #define MSPEL_FILTER13_CORE(UNPACK, MOVQ, A1, A2, A3, A4, POS)  \
 223      MOVQ "*0+"A1", %%mm1       \n\t"                           \
 224      MOVQ "*4+"A1", %%mm2       \n\t"                           \
 225      UNPACK("%%mm1")                                            \
 226      UNPACK("%%mm2")                                            \
 227      "pmullw    "POS", %%mm1    \n\t"                           \
 228      "pmullw    "POS", %%mm2    \n\t"                           \
 229      MOVQ "*0+"A2", %%mm3       \n\t"                           \
 230      MOVQ "*4+"A2", %%mm4       \n\t"                           \
 231      UNPACK("%%mm3")                                            \
 232      UNPACK("%%mm4")                                            \
 233      "pmullw    %%mm6, %%mm3    \n\t" /* *18 */                 \
 234      "pmullw    %%mm6, %%mm4    \n\t" /* *18 */                 \
 235      "psubw     %%mm1, %%mm3    \n\t" /* 18,-3 */               \
 236      "psubw     %%mm2, %%mm4    \n\t" /* 18,-3 */               \
 237      MOVQ "*0+"A4", %%mm1       \n\t"                           \
 238      MOVQ "*4+"A4", %%mm2       \n\t"                           \
 239      UNPACK("%%mm1")                                            \
 240      UNPACK("%%mm2")                                            \
 241      "psllw     $2, %%mm1       \n\t" /* 4* */                  \
 242      "psllw     $2, %%mm2       \n\t" /* 4* */                  \
 243      "psubw     %%mm1, %%mm3    \n\t" /* -4,18,-3 */            \
 244      "psubw     %%mm2, %%mm4    \n\t" /* -4,18,-3 */            \
 245      MOVQ "*0+"A3", %%mm1       \n\t"                           \
 246      MOVQ "*4+"A3", %%mm2       \n\t"                           \
 247      UNPACK("%%mm1")                                            \
 248      UNPACK("%%mm2")                                            \
 249      "pmullw    %%mm5, %%mm1    \n\t" /* *53 */                 \
 250      "pmullw    %%mm5, %%mm2    \n\t" /* *53 */                 \
 251      "paddw     %%mm1, %%mm3    \n\t" /* 4,53,18,-3 */          \
 252      "paddw     %%mm2, %%mm4    \n\t" /* 4,53,18,-3 */
 253
 254 /**
 255  * Macro to build the vertical 16bits version of vc1_put_shift[13].
 256  * Here, offset=src_stride. Parameters passed A1 to A4 must use
 257  * %3 (src_stride) and %4 (3*src_stride).
 258  *
 259  * @param  NAME   Either 1 or 3
 260  * @see MSPEL_FILTER13_CORE for information on A1->A4
 261  */
 262 #define MSPEL_FILTER13_VER_16B(NAME, A1, A2, A3, A4)                    \
 263 static void                                                             \
 264 vc1_put_ver_16b_ ## NAME ## _mmx(int16_t *dst, const uint8_t *src,      \
 265                                  long int src_stride,                   \
 266                                  int rnd, int64_t shift)                \
 267 {                                                                       \
 268     int h = 8;                                                          \
 269     src -= src_stride;                                                  \
 270     asm volatile(                                                       \
 271         LOAD_ROUNDER_MMX("%5")                                          \
 272         "movq      %7, %%mm5       \n\t"                                \
 273         "movq      %8, %%mm6       \n\t"                                \
 274         ASMALIGN(3)                                                     \
 275         "1:                        \n\t"                                \
 276         MSPEL_FILTER13_CORE(DO_UNPACK, "movd  1", A1, A2, A3, A4, "%9") \
 277         NORMALIZE_MMX("%6")                                             \
 278         TRANSFER_DONT_PACK                                              \
 279         /* Last 3 (in fact 4) bytes on the line */                      \
 280         "movd      8+"A1", %%mm1   \n\t"                                \
 281         DO_UNPACK("%%mm1")                                              \
 282         "movq      %%mm1, %%mm3    \n\t"                                \
 283         "paddw     %%mm1, %%mm1    \n\t"                                \
 284         "paddw     %%mm3, %%mm1    \n\t" /* 3* */                       \
 285         "movd      8+"A2", %%mm3   \n\t"                                \
 286         DO_UNPACK("%%mm3")                                              \
 287         "pmullw    %%mm6, %%mm3    \n\t" /* *18 */                      \
 288         "psubw     %%mm1, %%mm3    \n\t" /*18,-3 */                     \
 289         "movd      8+"A3", %%mm1   \n\t"                                \
 290         DO_UNPACK("%%mm1")                                              \
 291         "pmullw    %%mm5, %%mm1    \n\t" /* *53 */                      \
 292         "paddw     %%mm1, %%mm3    \n\t" /*53,18,-3 */                  \
 293         "movd      8+"A4", %%mm1   \n\t"                                \
 294         DO_UNPACK("%%mm1")                                              \
 295         "psllw     $2, %%mm1       \n\t" /* 4* */                       \
 296         "psubw     %%mm1, %%mm3    \n\t"                                \
 297         "paddw     %%mm7, %%mm3    \n\t"                                \
 298         "psraw     %6, %%mm3       \n\t"                                \
 299         "movq      %%mm3, 16(%2)   \n\t"                                \
 300         "add       %3, %1          \n\t"                                \
 301         "add       $24, %2         \n\t"                                \
 302         "dec       %0              \n\t"                                \
 303         "jnz 1b                    \n\t"                                \
 304         : "+g"(h), "+r" (src),  "+r" (dst)                              \
 305         : "r"(src_stride), "r"(3*src_stride),                           \
 306           "m"(rnd), "m"(shift),                                         \
 307           "m"(fact_53), "m"(fact_18), "m"(ff_pw_3)                      \
 308         : "memory"                                                      \
 309     );                                                                  \
 310 }
 311
 312 /**
 313  * Macro to build the horizontal 16bits version of vc1_put_shift[13].
 314  * Here, offset=16bits, so parameters passed A1 to A4 should be simple.
 315  *
 316  * @param  NAME   Either 1 or 3
 317  * @see MSPEL_FILTER13_CORE for information on A1->A4
 318  */
 319 #define MSPEL_FILTER13_HOR_16B(NAME, A1, A2, A3, A4)                    \
 320 static void                                                             \
 321 vc1_put_hor_16b_ ## NAME ## _mmx(uint8_t *dst, long int stride,         \
 322                                  const int16_t *src, int rnd)           \
 323 {                                                                       \
 324     int h = 8;                                                          \
 325     src -= 1;                                                           \
 326     rnd -= (-4+58+13-3)*256; /* Add -256 bias */                        \
 327     asm volatile(                                                       \
 328         LOAD_ROUNDER_MMX("%4")                                          \
 329         "movq      %6, %%mm6       \n\t"                                \
 330         "movq      %5, %%mm5       \n\t"                                \
 331         ASMALIGN(3)                                                     \
 332         "1:                        \n\t"                                \
 333         MSPEL_FILTER13_CORE(DONT_UNPACK, "movq 2", A1, A2, A3, A4, "%8")\
 334         NORMALIZE_MMX("$7")                                             \
 335         /* Remove bias */                                               \
 336         "paddw     %7, %%mm3       \n\t"                                \
 337         "paddw     %7, %%mm4       \n\t"                                \
 338         TRANSFER_DO_PACK                                                \
 339         "add       $24, %1         \n\t"                                \
 340         "add       %3, %2          \n\t"                                \
 341         "dec       %0              \n\t"                                \
 342         "jnz 1b                    \n\t"                                \
 343         : "+g"(h), "+r" (src),  "+r" (dst)                              \
 344         : "g"(stride), "m"(rnd), "m"(fact_53), "m"(fact_18),            \
 345           "m"(ff_pw_128), "m"(ff_pw_3)                                  \
 346         : "memory"                                                      \
 347     );                                                                  \
 348 }
 349
 350 /**
 351  * Macro to build the 8bits, any direction, version of vc1_put_shift[13].
 352  * Here, offset=src_stride. Parameters passed A1 to A4 must use
 353  * %3 (offset) and %4 (3*offset).
 354  *
 355  * @param  NAME   Either 1 or 3
 356  * @see MSPEL_FILTER13_CORE for information on A1->A4
 357  */
 358 #define MSPEL_FILTER13_8B(NAME, A1, A2, A3, A4)                         \
 359 static void                                                             \
 360 vc1_put_## NAME ## _mmx(uint8_t *dst, const uint8_t *src,               \
 361                         long int stride, int rnd, long int offset)      \
 362 {                                                                       \
 363     int h = 8;                                                          \
 364     src -= offset;                                                      \
 365     rnd = 32-rnd;                                                       \
 366     asm volatile (                                                      \
 367         LOAD_ROUNDER_MMX("%6")                                          \
 368         "movq      %7, %%mm5       \n\t"                                \
 369         "movq      %8, %%mm6       \n\t"                                \
 370         ASMALIGN(3)                                                     \
 371         "1:                        \n\t"                                \
 372         MSPEL_FILTER13_CORE(DO_UNPACK, "movd   1", A1, A2, A3, A4, "%9")\
 373         NORMALIZE_MMX("$6")                                             \
 374         TRANSFER_DO_PACK                                                \
 375         "add       %5, %1          \n\t"                                \
 376         "add       %5, %2          \n\t"                                \
 377         "dec       %0              \n\t"                                \
 378         "jnz 1b                    \n\t"                                \
 379         : "+g"(h), "+r" (src),  "+r" (dst)                              \
 380         : "r"(offset), "r"(3*offset), "g"(stride), "m"(rnd),            \
 381           "m"(fact_53), "m"(fact_18), "m"(ff_pw_3)                      \
 382         : "memory"                                                      \
 383     );                                                                  \
 384 }
 385
 386 /** 1/4 shift bicubic interpolation */
 387 MSPEL_FILTER13_8B     (shift1, "0(%1,%4  )", "0(%1,%3,2)", "0(%1,%3  )", "0(%1     )")
 388 MSPEL_FILTER13_VER_16B(shift1, "0(%1,%4  )", "0(%1,%3,2)", "0(%1,%3  )", "0(%1     )")
 389 MSPEL_FILTER13_HOR_16B(shift1, "2*3(%1)", "2*2(%1)", "2*1(%1)", "2*0(%1)")
 390
 391 /** 3/4 shift bicubic interpolation */
 392 MSPEL_FILTER13_8B     (shift3, "0(%1     )", "0(%1,%3  )", "0(%1,%3,2)", "0(%1,%4  )")
 393 MSPEL_FILTER13_VER_16B(shift3, "0(%1     )", "0(%1,%3  )", "0(%1,%3,2)", "0(%1,%4  )")
 394 MSPEL_FILTER13_HOR_16B(shift3, "2*0(%1)", "2*1(%1)", "2*2(%1)", "2*3(%1)")
 395
 396 typedef void (*vc1_mspel_mc_filter_ver_16bits)(int16_t *dst, const uint8_t *src, long int src_stride, int rnd, int64_t shift);
 397 typedef void (*vc1_mspel_mc_filter_hor_16bits)(uint8_t *dst, long int dst_stride, const int16_t *src, int rnd);
 398 typedef void (*vc1_mspel_mc_filter_8bits)(uint8_t *dst, const uint8_t *src, long int stride, int rnd, long int offset);
 399
 400 /**
 401  * Interpolates fractional pel values by applying proper vertical then
 402  * horizontal filter.
 403  *
 404  * @param  dst     Destination buffer for interpolated pels.
 405  * @param  src     Source buffer.
 406  * @param  stride  Stride for both src and dst buffers.
 407  * @param  hmode   Horizontal filter (expressed in quarter pixels shift).
 408  * @param  hmode   Vertical filter.
 409  * @param  rnd     Rounding bias.
 410  */
 411 static void vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride,
 412                          int hmode, int vmode, int rnd)
 413 {
 414     static const vc1_mspel_mc_filter_ver_16bits vc1_put_shift_ver_16bits[] =
 415          { NULL, vc1_put_ver_16b_shift1_mmx, vc1_put_ver_16b_shift2_mmx, vc1_put_ver_16b_shift3_mmx };
 416     static const vc1_mspel_mc_filter_hor_16bits vc1_put_shift_hor_16bits[] =
 417          { NULL, vc1_put_hor_16b_shift1_mmx, vc1_put_hor_16b_shift2_mmx, vc1_put_hor_16b_shift3_mmx };
 418     static const vc1_mspel_mc_filter_8bits vc1_put_shift_8bits[] =
 419          { NULL, vc1_put_shift1_mmx, vc1_put_shift2_mmx, vc1_put_shift3_mmx };
 420
 421     asm volatile(
 422         "pxor %%mm0, %%mm0         \n\t"
 423         ::: "memory"
 424     );
 425
 426     if (vmode) { /* Vertical filter to apply */
 427         if (hmode) { /* Horizontal filter to apply, output to tmp */
 428             static const int shift_value[] = { 0, 5, 1, 5 };
 429             int              shift = (shift_value[hmode]+shift_value[vmode])>>1;
 430             int              r;
 431             DECLARE_ALIGNED_16(int16_t, tmp[12*8]);
 432
 433             r = (1<<(shift-1)) + rnd-1;
 434             vc1_put_shift_ver_16bits[vmode](tmp, src-1, stride, r, shift);
 435
 436             vc1_put_shift_hor_16bits[hmode](dst, stride, tmp+1, 64-rnd);
 437             return;
 438         }
 439         else { /* No horizontal filter, output 8 lines to dst */
 440             vc1_put_shift_8bits[vmode](dst, src, stride, 1-rnd, stride);
 441             return;
 442         }
 443     }
 444
 445     /* Horizontal mode with no vertical mode */
 446     vc1_put_shift_8bits[hmode](dst, src, stride, rnd, 1);
 447 }
 448
 449 static void put_vc1_mspel_mc00_mmx(uint8_t *dst, const uint8_t *src, int stride, int rnd) {
 450     put_pixels8_mmx(dst, src, stride, 8);
 451 }
 452
 453 /** Macro to ease bicubic filter interpolation functions declarations */
 454 #define DECLARE_FUNCTION(a, b)                                          \
 455 static void put_vc1_mspel_mc ## a ## b ## _mmx(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
 456      vc1_mspel_mc(dst, src, stride, a, b, rnd);                         \
 457 }
 458
 459 DECLARE_FUNCTION(0, 1)
 460 DECLARE_FUNCTION(0, 2)
 461 DECLARE_FUNCTION(0, 3)
 462
 463 DECLARE_FUNCTION(1, 0)
 464 DECLARE_FUNCTION(1, 1)
 465 DECLARE_FUNCTION(1, 2)
 466 DECLARE_FUNCTION(1, 3)
 467
 468 DECLARE_FUNCTION(2, 0)
 469 DECLARE_FUNCTION(2, 1)
 470 DECLARE_FUNCTION(2, 2)
 471 DECLARE_FUNCTION(2, 3)
 472
 473 DECLARE_FUNCTION(3, 0)
 474 DECLARE_FUNCTION(3, 1)
 475 DECLARE_FUNCTION(3, 2)
 476 DECLARE_FUNCTION(3, 3)
 477
 478 void ff_vc1dsp_init_mmx(DSPContext* dsp, AVCodecContext *avctx) {
 479     dsp->put_vc1_mspel_pixels_tab[ 0] = put_vc1_mspel_mc00_mmx;
 480     dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_mmx;
 481     dsp->put_vc1_mspel_pixels_tab[ 8] = put_vc1_mspel_mc02_mmx;
 482     dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_mmx;
 483
 484     dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_mmx;
 485     dsp->put_vc1_mspel_pixels_tab[ 5] = put_vc1_mspel_mc11_mmx;
 486     dsp->put_vc1_mspel_pixels_tab[ 9] = put_vc1_mspel_mc12_mmx;
 487     dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_mmx;
 488
 489     dsp->put_vc1_mspel_pixels_tab[ 2] = put_vc1_mspel_mc20_mmx;
 490     dsp->put_vc1_mspel_pixels_tab[ 6] = put_vc1_mspel_mc21_mmx;
 491     dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_mmx;
 492     dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_mmx;
 493
 494     dsp->put_vc1_mspel_pixels_tab[ 3] = put_vc1_mspel_mc30_mmx;
 495     dsp->put_vc1_mspel_pixels_tab[ 7] = put_vc1_mspel_mc31_mmx;
 496     dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_mmx;
 497     dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_mmx;
 498 }