/*
  * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
  * Copyright (c) 2006  Stefan Gehrer <stefan.gehrer@gmx.de>
  *

  * MMX-optimized DSP functions, based on H.264 optimizations by

  * Michael Niedermayer and Loren Merritt
  *

  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

  * version 2.1 of the License, or (at your option) any later version.

  *

  * FFmpeg is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

  * License along with FFmpeg; if not, write to the Free Software

  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  */
 

 #include "libavutil/attributes.h"

 #include "libavutil/common.h"

 #include "libavutil/cpu.h"

 #include "libavutil/x86/asm.h"

 #include "libavutil/x86/cpu.h"

 #include "libavcodec/cavsdsp.h"

 #include "libavcodec/idctdsp.h"

 #include "constants.h"

 #include "fpel.h"

 #include "idctdsp.h"

 #include "config.h"

 #if HAVE_MMX_EXTERNAL

 void ff_cavs_idct8_mmx(int16_t *out, const int16_t *in);

 static void cavs_idct8_add_mmx(uint8_t *dst, int16_t *block, ptrdiff_t stride)

 {

     LOCAL_ALIGNED(16, int16_t, b2, [64]);

     ff_cavs_idct8_mmx(b2, block);

     ff_add_pixels_clamped_mmx(b2, dst, stride);
 }
 
 void ff_cavs_idct8_sse2(int16_t *out, const int16_t *in);
 
 static void cavs_idct8_add_sse2(uint8_t *dst, int16_t *block, ptrdiff_t stride)
 {
     LOCAL_ALIGNED(16, int16_t, b2, [64]);
     ff_cavs_idct8_sse2(b2, block);
     ff_add_pixels_clamped_sse2(b2, dst, stride);

 }
 

 #endif /* HAVE_MMX_EXTERNAL */

 
 #if (HAVE_MMXEXT_INLINE || HAVE_AMD3DNOW_INLINE)
 

 /*****************************************************************************
  *
  * motion compensation
  *
  ****************************************************************************/
 
 /* vertical filter [-1 -2 96 42 -7  0]  */

 #define QPEL_CAVSV1(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \

         "movd (%0), "#F"            \n\t"\
         "movq "#C", %%mm6           \n\t"\

         "pmullw "MANGLE(MUL1)", %%mm6\n\t"\

         "movq "#D", %%mm7           \n\t"\

         "pmullw "MANGLE(MUL2)", %%mm7\n\t"\

         "psllw $3, "#E"             \n\t"\
         "psubw "#E", %%mm6          \n\t"\
         "psraw $3, "#E"             \n\t"\
         "paddw %%mm7, %%mm6         \n\t"\
         "paddw "#E", %%mm6          \n\t"\
         "paddw "#B", "#B"           \n\t"\
         "pxor %%mm7, %%mm7          \n\t"\
         "add %2, %0                 \n\t"\
         "punpcklbw %%mm7, "#F"      \n\t"\
         "psubw "#B", %%mm6          \n\t"\
         "psraw $1, "#B"             \n\t"\
         "psubw "#A", %%mm6          \n\t"\

         "paddw "MANGLE(ADD)", %%mm6 \n\t"\

         "psraw $7, %%mm6            \n\t"\
         "packuswb %%mm6, %%mm6      \n\t"\
         OP(%%mm6, (%1), A, d)            \
         "add %3, %1                 \n\t"
 
 /* vertical filter [ 0 -1  5  5 -1  0]  */

 #define QPEL_CAVSV2(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \

         "movd (%0), "#F"            \n\t"\
         "movq "#C", %%mm6           \n\t"\
         "paddw "#D", %%mm6          \n\t"\

         "pmullw "MANGLE(MUL1)", %%mm6\n\t"\

         "add %2, %0                 \n\t"\
         "punpcklbw %%mm7, "#F"      \n\t"\
         "psubw "#B", %%mm6          \n\t"\
         "psubw "#E", %%mm6          \n\t"\

         "paddw "MANGLE(ADD)", %%mm6 \n\t"\

         "psraw $3, %%mm6            \n\t"\
         "packuswb %%mm6, %%mm6      \n\t"\
         OP(%%mm6, (%1), A, d)            \
         "add %3, %1                 \n\t"
 
 /* vertical filter [ 0 -7 42 96 -2 -1]  */

 #define QPEL_CAVSV3(A,B,C,D,E,F,OP,ADD, MUL1, MUL2) \

         "movd (%0), "#F"            \n\t"\
         "movq "#C", %%mm6           \n\t"\

         "pmullw "MANGLE(MUL2)", %%mm6\n\t"\

         "movq "#D", %%mm7           \n\t"\

         "pmullw "MANGLE(MUL1)", %%mm7\n\t"\

         "psllw $3, "#B"             \n\t"\
         "psubw "#B", %%mm6          \n\t"\
         "psraw $3, "#B"             \n\t"\
         "paddw %%mm7, %%mm6         \n\t"\
         "paddw "#B", %%mm6          \n\t"\
         "paddw "#E", "#E"           \n\t"\
         "pxor %%mm7, %%mm7          \n\t"\
         "add %2, %0                 \n\t"\
         "punpcklbw %%mm7, "#F"      \n\t"\
         "psubw "#E", %%mm6          \n\t"\
         "psraw $1, "#E"             \n\t"\
         "psubw "#F", %%mm6          \n\t"\

         "paddw "MANGLE(ADD)", %%mm6 \n\t"\

         "psraw $7, %%mm6            \n\t"\
         "packuswb %%mm6, %%mm6      \n\t"\
         OP(%%mm6, (%1), A, d)            \
         "add %3, %1                 \n\t"
 
 
 #define QPEL_CAVSVNUM(VOP,OP,ADD,MUL1,MUL2)\
     int w= 2;\
     src -= 2*srcStride;\
     \
     while(w--){\

       __asm__ volatile(\

         "pxor %%mm7, %%mm7          \n\t"\
         "movd (%0), %%mm0           \n\t"\
         "add %2, %0                 \n\t"\
         "movd (%0), %%mm1           \n\t"\
         "add %2, %0                 \n\t"\
         "movd (%0), %%mm2           \n\t"\
         "add %2, %0                 \n\t"\
         "movd (%0), %%mm3           \n\t"\
         "add %2, %0                 \n\t"\
         "movd (%0), %%mm4           \n\t"\
         "add %2, %0                 \n\t"\
         "punpcklbw %%mm7, %%mm0     \n\t"\
         "punpcklbw %%mm7, %%mm1     \n\t"\
         "punpcklbw %%mm7, %%mm2     \n\t"\
         "punpcklbw %%mm7, %%mm3     \n\t"\
         "punpcklbw %%mm7, %%mm4     \n\t"\

         VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
         VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\
         VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
         VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\
         VOP(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP, ADD, MUL1, MUL2)\
         VOP(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP, ADD, MUL1, MUL2)\
         VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
         VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\

         \
         : "+a"(src), "+c"(dst)\

         : "S"((x86_reg)srcStride), "r"((x86_reg)dstStride)\
           NAMED_CONSTRAINTS_ADD(ADD,MUL1,MUL2)\

         : "memory"\
      );\
      if(h==16){\

         __asm__ volatile(\

             VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
             VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\
             VOP(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP, ADD, MUL1, MUL2)\
             VOP(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP, ADD, MUL1, MUL2)\
             VOP(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP, ADD, MUL1, MUL2)\
             VOP(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP, ADD, MUL1, MUL2)\
             VOP(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP, ADD, MUL1, MUL2)\
             VOP(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP, ADD, MUL1, MUL2)\

             \
            : "+a"(src), "+c"(dst)\

            : "S"((x86_reg)srcStride), "r"((x86_reg)dstStride)\
              NAMED_CONSTRAINTS_ADD(ADD,MUL1,MUL2)\

            : "memory"\
         );\
      }\
      src += 4-(h+5)*srcStride;\
      dst += 4-h*dstStride;\
    }
 
 #define QPEL_CAVS(OPNAME, OP, MMX)\

 static void OPNAME ## cavs_qpel8_h_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {\

     int h=8;\

     __asm__ volatile(\

         "pxor %%mm7, %%mm7          \n\t"\

         "movq "MANGLE(ff_pw_5)", %%mm6\n\t"\

         "1:                         \n\t"\
         "movq    (%0), %%mm0        \n\t"\
         "movq   1(%0), %%mm2        \n\t"\
         "movq %%mm0, %%mm1          \n\t"\
         "movq %%mm2, %%mm3          \n\t"\
         "punpcklbw %%mm7, %%mm0     \n\t"\
         "punpckhbw %%mm7, %%mm1     \n\t"\
         "punpcklbw %%mm7, %%mm2     \n\t"\
         "punpckhbw %%mm7, %%mm3     \n\t"\
         "paddw %%mm2, %%mm0         \n\t"\
         "paddw %%mm3, %%mm1         \n\t"\
         "pmullw %%mm6, %%mm0        \n\t"\
         "pmullw %%mm6, %%mm1        \n\t"\
         "movq   -1(%0), %%mm2       \n\t"\
         "movq    2(%0), %%mm4       \n\t"\
         "movq %%mm2, %%mm3          \n\t"\
         "movq %%mm4, %%mm5          \n\t"\
         "punpcklbw %%mm7, %%mm2     \n\t"\
         "punpckhbw %%mm7, %%mm3     \n\t"\
         "punpcklbw %%mm7, %%mm4     \n\t"\
         "punpckhbw %%mm7, %%mm5     \n\t"\
         "paddw %%mm4, %%mm2         \n\t"\
         "paddw %%mm3, %%mm5         \n\t"\
         "psubw %%mm2, %%mm0         \n\t"\
         "psubw %%mm5, %%mm1         \n\t"\

         "movq "MANGLE(ff_pw_4)", %%mm5\n\t"\

         "paddw %%mm5, %%mm0         \n\t"\
         "paddw %%mm5, %%mm1         \n\t"\
         "psraw $3, %%mm0            \n\t"\
         "psraw $3, %%mm1            \n\t"\
         "packuswb %%mm1, %%mm0      \n\t"\
         OP(%%mm0, (%1),%%mm5, q)         \
         "add %3, %0                 \n\t"\
         "add %4, %1                 \n\t"\
         "decl %2                    \n\t"\
         " jnz 1b                    \n\t"\
         : "+a"(src), "+c"(dst), "+m"(h)\

         : "d"((x86_reg)srcStride), "S"((x86_reg)dstStride)\
           NAMED_CONSTRAINTS_ADD(ff_pw_4,ff_pw_5)\

         : "memory"\
     );\
 }\
 \

 static inline void OPNAME ## cavs_qpel8or16_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
 {                                                                       \

   QPEL_CAVSVNUM(QPEL_CAVSV1,OP,ff_pw_64,ff_pw_96,ff_pw_42)      \
 }\
 \

 static inline void OPNAME ## cavs_qpel8or16_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
 {                                                                       \

   QPEL_CAVSVNUM(QPEL_CAVSV2,OP,ff_pw_4,ff_pw_5,ff_pw_42)        \

 }\
 \

 static inline void OPNAME ## cavs_qpel8or16_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)\
 {                                                                       \

   QPEL_CAVSVNUM(QPEL_CAVSV3,OP,ff_pw_64,ff_pw_96,ff_pw_42)      \
 }\
 \

 static void OPNAME ## cavs_qpel8_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
 }\

 static void OPNAME ## cavs_qpel16_v1_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
     OPNAME ## cavs_qpel8or16_v1_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
 }\
 \

 static void OPNAME ## cavs_qpel8_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
 }\

 static void OPNAME ## cavs_qpel16_v2_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
     OPNAME ## cavs_qpel8or16_v2_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
 }\
 \

 static void OPNAME ## cavs_qpel8_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
 }\

 static void OPNAME ## cavs_qpel16_v3_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
     OPNAME ## cavs_qpel8or16_v3_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
 }\
 \

 static void OPNAME ## cavs_qpel16_h_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
 {                                                                       \

     OPNAME ## cavs_qpel8_h_ ## MMX(dst  , src  , dstStride, srcStride);\
     OPNAME ## cavs_qpel8_h_ ## MMX(dst+8, src+8, dstStride, srcStride);\
     src += 8*srcStride;\
     dst += 8*dstStride;\
     OPNAME ## cavs_qpel8_h_ ## MMX(dst  , src  , dstStride, srcStride);\
     OPNAME ## cavs_qpel8_h_ ## MMX(dst+8, src+8, dstStride, srcStride);\
 }\
 
 #define CAVS_MC(OPNAME, SIZE, MMX) \

 static void OPNAME ## cavs_qpel ## SIZE ## _mc20_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\

 {\

     OPNAME ## cavs_qpel ## SIZE ## _h_ ## MMX(dst, src, stride, stride);\
 }\
 \

 static void OPNAME ## cavs_qpel ## SIZE ## _mc01_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\

 {\

     OPNAME ## cavs_qpel ## SIZE ## _v1_ ## MMX(dst, src, stride, stride);\
 }\
 \

 static void OPNAME ## cavs_qpel ## SIZE ## _mc02_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\

 {\

     OPNAME ## cavs_qpel ## SIZE ## _v2_ ## MMX(dst, src, stride, stride);\
 }\
 \

 static void OPNAME ## cavs_qpel ## SIZE ## _mc03_ ## MMX(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\

 {\

     OPNAME ## cavs_qpel ## SIZE ## _v3_ ## MMX(dst, src, stride, stride);\
 }\
 
 #define PUT_OP(a,b,temp, size) "mov" #size " " #a ", " #b "    \n\t"
 #define AVG_3DNOW_OP(a,b,temp, size) \
 "mov" #size " " #b ", " #temp "   \n\t"\
 "pavgusb " #temp ", " #a "        \n\t"\
 "mov" #size " " #a ", " #b "      \n\t"

 #define AVG_MMXEXT_OP(a, b, temp, size) \

 "mov" #size " " #b ", " #temp "   \n\t"\
 "pavgb " #temp ", " #a "          \n\t"\
 "mov" #size " " #a ", " #b "      \n\t"
 

 #endif /* (HAVE_MMXEXT_INLINE || HAVE_AMD3DNOW_INLINE) */
 

 #if HAVE_MMX_EXTERNAL

 static void put_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,

                                     ptrdiff_t stride)
 {
     ff_put_pixels8_mmx(dst, src, stride, 8);
 }
 

 static void avg_cavs_qpel8_mc00_mmx(uint8_t *dst, const uint8_t *src,

                                     ptrdiff_t stride)
 {
     ff_avg_pixels8_mmx(dst, src, stride, 8);
 }
 

 static void avg_cavs_qpel8_mc00_mmxext(uint8_t *dst, const uint8_t *src,

                                        ptrdiff_t stride)
 {
     ff_avg_pixels8_mmxext(dst, src, stride, 8);
 }
 

 static void put_cavs_qpel16_mc00_mmx(uint8_t *dst, const uint8_t *src,

                                      ptrdiff_t stride)
 {
     ff_put_pixels16_mmx(dst, src, stride, 16);
 }
 

 static void avg_cavs_qpel16_mc00_mmx(uint8_t *dst, const uint8_t *src,

                                      ptrdiff_t stride)
 {
     ff_avg_pixels16_mmx(dst, src, stride, 16);
 }

 static void avg_cavs_qpel16_mc00_mmxext(uint8_t *dst, const uint8_t *src,

                                         ptrdiff_t stride)
 {
     ff_avg_pixels16_mmxext(dst, src, stride, 16);
 }
 

 static void put_cavs_qpel16_mc00_sse2(uint8_t *dst, const uint8_t *src,

                                       ptrdiff_t stride)
 {
     ff_put_pixels16_sse2(dst, src, stride, 16);
 }
 

 static void avg_cavs_qpel16_mc00_sse2(uint8_t *dst, const uint8_t *src,

                                       ptrdiff_t stride)
 {
     ff_avg_pixels16_sse2(dst, src, stride, 16);
 }

 #endif

 static av_cold void cavsdsp_init_mmx(CAVSDSPContext *c,
                                      AVCodecContext *avctx)
 {

 #if HAVE_MMX_EXTERNAL

     c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_mmx;
     c->put_cavs_qpel_pixels_tab[1][0] = put_cavs_qpel8_mc00_mmx;
     c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmx;
     c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmx;

 
     c->cavs_idct8_add = cavs_idct8_add_mmx;

     c->idct_perm      = FF_IDCT_PERM_TRANSPOSE;

 #endif /* HAVE_MMX_EXTERNAL */

 }

 #define DSPFUNC(PFX, IDX, NUM, EXT)                                                       \
     c->PFX ## _cavs_qpel_pixels_tab[IDX][ 2] = PFX ## _cavs_qpel ## NUM ## _mc20_ ## EXT; \
     c->PFX ## _cavs_qpel_pixels_tab[IDX][ 4] = PFX ## _cavs_qpel ## NUM ## _mc01_ ## EXT; \
     c->PFX ## _cavs_qpel_pixels_tab[IDX][ 8] = PFX ## _cavs_qpel ## NUM ## _mc02_ ## EXT; \
     c->PFX ## _cavs_qpel_pixels_tab[IDX][12] = PFX ## _cavs_qpel ## NUM ## _mc03_ ## EXT; \

 #if HAVE_MMXEXT_INLINE

 QPEL_CAVS(put_,        PUT_OP, mmxext)
 QPEL_CAVS(avg_, AVG_MMXEXT_OP, mmxext)

 CAVS_MC(put_,  8, mmxext)
 CAVS_MC(put_, 16, mmxext)
 CAVS_MC(avg_,  8, mmxext)
 CAVS_MC(avg_, 16, mmxext)

 #endif /* HAVE_MMXEXT_INLINE */
 
 #if HAVE_AMD3DNOW_INLINE
 QPEL_CAVS(put_,       PUT_OP, 3dnow)
 QPEL_CAVS(avg_, AVG_3DNOW_OP, 3dnow)
 
 CAVS_MC(put_, 8, 3dnow)
 CAVS_MC(put_, 16,3dnow)
 CAVS_MC(avg_, 8, 3dnow)
 CAVS_MC(avg_, 16,3dnow)

 static av_cold void cavsdsp_init_3dnow(CAVSDSPContext *c,
                                        AVCodecContext *avctx)

 {

     DSPFUNC(put, 0, 16, 3dnow);
     DSPFUNC(put, 1,  8, 3dnow);
     DSPFUNC(avg, 0, 16, 3dnow);
     DSPFUNC(avg, 1,  8, 3dnow);

 }

 #endif /* HAVE_AMD3DNOW_INLINE */

 av_cold void ff_cavsdsp_init_x86(CAVSDSPContext *c, AVCodecContext *avctx)

 {

     av_unused int cpu_flags = av_get_cpu_flags();

     if (X86_MMX(cpu_flags))
         cavsdsp_init_mmx(c, avctx);
 

 #if HAVE_AMD3DNOW_INLINE

     if (INLINE_AMD3DNOW(cpu_flags))

         cavsdsp_init_3dnow(c, avctx);

 #endif /* HAVE_AMD3DNOW_INLINE */

 #if HAVE_MMXEXT_INLINE

     if (INLINE_MMXEXT(cpu_flags)) {
         DSPFUNC(put, 0, 16, mmxext);
         DSPFUNC(put, 1,  8, mmxext);
         DSPFUNC(avg, 0, 16, mmxext);
         DSPFUNC(avg, 1,  8, mmxext);
     }
 #endif
 #if HAVE_MMX_EXTERNAL
     if (EXTERNAL_MMXEXT(cpu_flags)) {
         c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmxext;
         c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmxext;
     }
 #endif
 #if HAVE_SSE2_EXTERNAL
     if (EXTERNAL_SSE2(cpu_flags)) {
         c->put_cavs_qpel_pixels_tab[0][0] = put_cavs_qpel16_mc00_sse2;
         c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_sse2;

 
         c->cavs_idct8_add = cavs_idct8_add_sse2;
         c->idct_perm      = FF_IDCT_PERM_TRANSPOSE;

     }
 #endif

 }