FFmpeg/libavcodec/i386/h264dsp_mmx.c

/*
 * Copyright (c) 2004-2005 Michael Niedermayer, 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
 */


/***********************************/
/* IDCT */

/* in/out: mma=mma+mmb, mmb=mmb-mma */
#define SUMSUB_BA( a, b ) \
    "paddw "#b", "#a" \n\t"\
    "paddw "#b", "#b" \n\t"\
    "psubw "#a", "#b" \n\t"

#define SUMSUB_BADC( a, b, c, d ) \
    "paddw "#b", "#a" \n\t"\
    "paddw "#d", "#c" \n\t"\
    "paddw "#b", "#b" \n\t"\
    "paddw "#d", "#d" \n\t"\
    "psubw "#a", "#b" \n\t"\
    "psubw "#c", "#d" \n\t"

#define SUMSUBD2_AB( a, b, t ) \
    "movq  "#b", "#t" \n\t"\
    "psraw  $1 , "#b" \n\t"\
    "paddw "#a", "#b" \n\t"\
    "psraw  $1 , "#a" \n\t"\
    "psubw "#t", "#a" \n\t"

#define IDCT4_1D( s02, s13, d02, d13, t ) \
    SUMSUB_BA  ( s02, d02 )\
    SUMSUBD2_AB( s13, d13, t )\
    SUMSUB_BADC( d13, s02, s13, d02 )

#define TRANSPOSE4(a,b,c,d,t)\
    SBUTTERFLY(a,b,t,wd) /* a=aebf t=cgdh */\
    SBUTTERFLY(c,d,b,wd) /* c=imjn b=kolp */\
    SBUTTERFLY(a,c,d,dq) /* a=aeim d=bfjn */\
    SBUTTERFLY(t,b,c,dq) /* t=cgko c=dhlp */

#define STORE_DIFF_4P( p, t, z ) \
    "psraw      $6,     "#p" \n\t"\
    "movd       (%0),   "#t" \n\t"\
    "punpcklbw "#z",    "#t" \n\t"\
    "paddsw    "#t",    "#p" \n\t"\
    "packuswb  "#z",    "#p" \n\t"\
    "movd      "#p",    (%0) \n\t"

static void ff_h264_idct_add_mmx(uint8_t *dst, int16_t *block, int stride)
{
    /* Load dct coeffs */
    asm volatile(
        "movq   (%0), %%mm0 \n\t"
        "movq  8(%0), %%mm1 \n\t"
        "movq 16(%0), %%mm2 \n\t"
        "movq 24(%0), %%mm3 \n\t"
    :: "r"(block) );

    asm volatile(
        /* mm1=s02+s13  mm2=s02-s13  mm4=d02+d13  mm0=d02-d13 */
        IDCT4_1D( %%mm2, %%mm1, %%mm0, %%mm3, %%mm4 )

        "movq      %0,    %%mm6 \n\t"
        /* in: 1,4,0,2  out: 1,2,3,0 */
        TRANSPOSE4( %%mm3, %%mm1, %%mm0, %%mm2, %%mm4 )

        "paddw     %%mm6, %%mm3 \n\t"

        /* mm2=s02+s13  mm3=s02-s13  mm4=d02+d13  mm1=d02-d13 */
        IDCT4_1D( %%mm4, %%mm2, %%mm3, %%mm0, %%mm1 )

        "pxor %%mm7, %%mm7    \n\t"
    :: "m"(ff_pw_32));

    asm volatile(
    STORE_DIFF_4P( %%mm0, %%mm1, %%mm7)
        "add %1, %0             \n\t"
    STORE_DIFF_4P( %%mm2, %%mm1, %%mm7)
        "add %1, %0             \n\t"
    STORE_DIFF_4P( %%mm3, %%mm1, %%mm7)
        "add %1, %0             \n\t"
    STORE_DIFF_4P( %%mm4, %%mm1, %%mm7)
        : "+r"(dst)
        : "r" ((long)stride)
    );
}

static inline void h264_idct8_1d(int16_t *block)
{
    asm volatile(
        "movq 112(%0), %%mm7  \n\t"
        "movq  80(%0), %%mm5  \n\t"
        "movq  48(%0), %%mm3  \n\t"
        "movq  16(%0), %%mm1  \n\t"

        "movq   %%mm7, %%mm4  \n\t"
        "movq   %%mm3, %%mm6  \n\t"
        "movq   %%mm5, %%mm0  \n\t"
        "movq   %%mm7, %%mm2  \n\t"
        "psraw  $1,    %%mm4  \n\t"
        "psraw  $1,    %%mm6  \n\t"
        "psubw  %%mm7, %%mm0  \n\t"
        "psubw  %%mm6, %%mm2  \n\t"
        "psubw  %%mm4, %%mm0  \n\t"
        "psubw  %%mm3, %%mm2  \n\t"
        "psubw  %%mm3, %%mm0  \n\t"
        "paddw  %%mm1, %%mm2  \n\t"

        "movq   %%mm5, %%mm4  \n\t"
        "movq   %%mm1, %%mm6  \n\t"
        "psraw  $1,    %%mm4  \n\t"
        "psraw  $1,    %%mm6  \n\t"
        "paddw  %%mm5, %%mm4  \n\t"
        "paddw  %%mm1, %%mm6  \n\t"
        "paddw  %%mm7, %%mm4  \n\t"
        "paddw  %%mm5, %%mm6  \n\t"
        "psubw  %%mm1, %%mm4  \n\t"
        "paddw  %%mm3, %%mm6  \n\t"

        "movq   %%mm0, %%mm1  \n\t"
        "movq   %%mm4, %%mm3  \n\t"
        "movq   %%mm2, %%mm5  \n\t"
        "movq   %%mm6, %%mm7  \n\t"
        "psraw  $2,    %%mm6  \n\t"
        "psraw  $2,    %%mm3  \n\t"
        "psraw  $2,    %%mm5  \n\t"
        "psraw  $2,    %%mm0  \n\t"
        "paddw  %%mm6, %%mm1  \n\t"
        "paddw  %%mm2, %%mm3  \n\t"
        "psubw  %%mm4, %%mm5  \n\t"
        "psubw  %%mm0, %%mm7  \n\t"

        "movq  32(%0), %%mm2  \n\t"
        "movq  96(%0), %%mm6  \n\t"
        "movq   %%mm2, %%mm4  \n\t"
        "movq   %%mm6, %%mm0  \n\t"
        "psraw  $1,    %%mm4  \n\t"
        "psraw  $1,    %%mm6  \n\t"
        "psubw  %%mm0, %%mm4  \n\t"
        "paddw  %%mm2, %%mm6  \n\t"

        "movq    (%0), %%mm2  \n\t"
        "movq  64(%0), %%mm0  \n\t"
        SUMSUB_BA( %%mm0, %%mm2 )
        SUMSUB_BA( %%mm6, %%mm0 )
        SUMSUB_BA( %%mm4, %%mm2 )
        SUMSUB_BA( %%mm7, %%mm6 )
        SUMSUB_BA( %%mm5, %%mm4 )
        SUMSUB_BA( %%mm3, %%mm2 )
        SUMSUB_BA( %%mm1, %%mm0 )
        :: "r"(block)
    );
}

static void ff_h264_idct8_add_mmx(uint8_t *dst, int16_t *block, int stride)
{
    int i;
    int16_t __attribute__ ((aligned(8))) b2[64];

    block[0] += 32;

    for(i=0; i<2; i++){
        DECLARE_ALIGNED_8(uint64_t, tmp);

        h264_idct8_1d(block+4*i);

        asm volatile(
            "movq   %%mm7,    %0   \n\t"
            TRANSPOSE4( %%mm0, %%mm2, %%mm4, %%mm6, %%mm7 )
            "movq   %%mm0,  8(%1)  \n\t"
            "movq   %%mm6, 24(%1)  \n\t"
            "movq   %%mm7, 40(%1)  \n\t"
            "movq   %%mm4, 56(%1)  \n\t"
            "movq    %0,    %%mm7  \n\t"
            TRANSPOSE4( %%mm7, %%mm5, %%mm3, %%mm1, %%mm0 )
            "movq   %%mm7,   (%1)  \n\t"
            "movq   %%mm1, 16(%1)  \n\t"
            "movq   %%mm0, 32(%1)  \n\t"
            "movq   %%mm3, 48(%1)  \n\t"
            : "=m"(tmp)
            : "r"(b2+32*i)
            : "memory"
        );
    }

    for(i=0; i<2; i++){
        h264_idct8_1d(b2+4*i);

        asm volatile(
            "psraw     $6, %%mm7  \n\t"
            "psraw     $6, %%mm6  \n\t"
            "psraw     $6, %%mm5  \n\t"
            "psraw     $6, %%mm4  \n\t"
            "psraw     $6, %%mm3  \n\t"
            "psraw     $6, %%mm2  \n\t"
            "psraw     $6, %%mm1  \n\t"
            "psraw     $6, %%mm0  \n\t"

            "movq   %%mm7,    (%0)  \n\t"
            "movq   %%mm5,  16(%0)  \n\t"
            "movq   %%mm3,  32(%0)  \n\t"
            "movq   %%mm1,  48(%0)  \n\t"
            "movq   %%mm0,  64(%0)  \n\t"
            "movq   %%mm2,  80(%0)  \n\t"
            "movq   %%mm4,  96(%0)  \n\t"
            "movq   %%mm6, 112(%0)  \n\t"
            :: "r"(b2+4*i)
            : "memory"
        );
    }

    add_pixels_clamped_mmx(b2, dst, stride);
}

static void ff_h264_idct_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
{
    int dc = (block[0] + 32) >> 6;
    asm volatile(
        "movd          %0, %%mm0 \n\t"
        "pshufw $0, %%mm0, %%mm0 \n\t"
        "pxor       %%mm1, %%mm1 \n\t"
        "psubw      %%mm0, %%mm1 \n\t"
        "packuswb   %%mm0, %%mm0 \n\t"
        "packuswb   %%mm1, %%mm1 \n\t"
        ::"r"(dc)
    );
    asm volatile(
        "movd          %0, %%mm2 \n\t"
        "movd          %1, %%mm3 \n\t"
        "movd          %2, %%mm4 \n\t"
        "movd          %3, %%mm5 \n\t"
        "paddusb    %%mm0, %%mm2 \n\t"
        "paddusb    %%mm0, %%mm3 \n\t"
        "paddusb    %%mm0, %%mm4 \n\t"
        "paddusb    %%mm0, %%mm5 \n\t"
        "psubusb    %%mm1, %%mm2 \n\t"
        "psubusb    %%mm1, %%mm3 \n\t"
        "psubusb    %%mm1, %%mm4 \n\t"
        "psubusb    %%mm1, %%mm5 \n\t"
        "movd       %%mm2, %0    \n\t"
        "movd       %%mm3, %1    \n\t"
        "movd       %%mm4, %2    \n\t"
        "movd       %%mm5, %3    \n\t"
        :"+m"(*(uint32_t*)(dst+0*stride)),
         "+m"(*(uint32_t*)(dst+1*stride)),
         "+m"(*(uint32_t*)(dst+2*stride)),
         "+m"(*(uint32_t*)(dst+3*stride))
    );
}

static void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
{
    int dc = (block[0] + 32) >> 6;
    int y;
    asm volatile(
        "movd          %0, %%mm0 \n\t"
        "pshufw $0, %%mm0, %%mm0 \n\t"
        "pxor       %%mm1, %%mm1 \n\t"
        "psubw      %%mm0, %%mm1 \n\t"
        "packuswb   %%mm0, %%mm0 \n\t"
        "packuswb   %%mm1, %%mm1 \n\t"
        ::"r"(dc)
    );
    for(y=2; y--; dst += 4*stride){
    asm volatile(
        "movq          %0, %%mm2 \n\t"
        "movq          %1, %%mm3 \n\t"
        "movq          %2, %%mm4 \n\t"
        "movq          %3, %%mm5 \n\t"
        "paddusb    %%mm0, %%mm2 \n\t"
        "paddusb    %%mm0, %%mm3 \n\t"
        "paddusb    %%mm0, %%mm4 \n\t"
        "paddusb    %%mm0, %%mm5 \n\t"
        "psubusb    %%mm1, %%mm2 \n\t"
        "psubusb    %%mm1, %%mm3 \n\t"
        "psubusb    %%mm1, %%mm4 \n\t"
        "psubusb    %%mm1, %%mm5 \n\t"
        "movq       %%mm2, %0    \n\t"
        "movq       %%mm3, %1    \n\t"
        "movq       %%mm4, %2    \n\t"
        "movq       %%mm5, %3    \n\t"
        :"+m"(*(uint64_t*)(dst+0*stride)),
         "+m"(*(uint64_t*)(dst+1*stride)),
         "+m"(*(uint64_t*)(dst+2*stride)),
         "+m"(*(uint64_t*)(dst+3*stride))
    );
    }
}


/***********************************/
/* deblocking */

// out: o = |x-y|>a
// clobbers: t
#define DIFF_GT_MMX(x,y,a,o,t)\
    "movq     "#y", "#t"  \n\t"\
    "movq     "#x", "#o"  \n\t"\
    "psubusb  "#x", "#t"  \n\t"\
    "psubusb  "#y", "#o"  \n\t"\
    "por      "#t", "#o"  \n\t"\
    "psubusb  "#a", "#o"  \n\t"

// out: o = |x-y|>a
// clobbers: t
#define DIFF_GT2_MMX(x,y,a,o,t)\
    "movq     "#y", "#t"  \n\t"\
    "movq     "#x", "#o"  \n\t"\
    "psubusb  "#x", "#t"  \n\t"\
    "psubusb  "#y", "#o"  \n\t"\
    "psubusb  "#a", "#t"  \n\t"\
    "psubusb  "#a", "#o"  \n\t"\
    "pcmpeqb  "#t", "#o"  \n\t"\

// in: mm0=p1 mm1=p0 mm2=q0 mm3=q1
// out: mm5=beta-1, mm7=mask
// clobbers: mm4,mm6
#define H264_DEBLOCK_MASK(alpha1, beta1) \
    "pshufw $0, "#alpha1", %%mm4 \n\t"\
    "pshufw $0, "#beta1 ", %%mm5 \n\t"\
    "packuswb  %%mm4, %%mm4      \n\t"\
    "packuswb  %%mm5, %%mm5      \n\t"\
    DIFF_GT_MMX(%%mm1, %%mm2, %%mm4, %%mm7, %%mm6) /* |p0-q0| > alpha-1 */\
    DIFF_GT_MMX(%%mm0, %%mm1, %%mm5, %%mm4, %%mm6) /* |p1-p0| > beta-1 */\
    "por       %%mm4, %%mm7      \n\t"\
    DIFF_GT_MMX(%%mm3, %%mm2, %%mm5, %%mm4, %%mm6) /* |q1-q0| > beta-1 */\
    "por       %%mm4, %%mm7      \n\t"\
    "pxor      %%mm6, %%mm6      \n\t"\
    "pcmpeqb   %%mm6, %%mm7      \n\t"

// in: mm0=p1 mm1=p0 mm2=q0 mm3=q1 mm7=(tc&mask)
// out: mm1=p0' mm2=q0'
// clobbers: mm0,3-6
#define H264_DEBLOCK_P0_Q0(pb_01, pb_3f)\
        "movq    %%mm1              , %%mm5 \n\t"\
        "pxor    %%mm2              , %%mm5 \n\t" /* p0^q0*/\
        "pand    "#pb_01"           , %%mm5 \n\t" /* (p0^q0)&1*/\
        "pcmpeqb %%mm4              , %%mm4 \n\t"\
        "pxor    %%mm4              , %%mm3 \n\t"\
        "pavgb   %%mm0              , %%mm3 \n\t" /* (p1 - q1 + 256)>>1*/\
        "pavgb   "MANGLE(ff_pb_3)"  , %%mm3 \n\t" /*(((p1 - q1 + 256)>>1)+4)>>1 = 64+2+(p1-q1)>>2*/\
        "pxor    %%mm1              , %%mm4 \n\t"\
        "pavgb   %%mm2              , %%mm4 \n\t" /* (q0 - p0 + 256)>>1*/\
        "pavgb   %%mm5              , %%mm3 \n\t"\
        "paddusb %%mm4              , %%mm3 \n\t" /* d+128+33*/\
        "movq    "MANGLE(ff_pb_A1)" , %%mm6 \n\t"\
        "psubusb %%mm3              , %%mm6 \n\t"\
        "psubusb "MANGLE(ff_pb_A1)" , %%mm3 \n\t"\
        "pminub  %%mm7              , %%mm6 \n\t"\
        "pminub  %%mm7              , %%mm3 \n\t"\
        "psubusb %%mm6              , %%mm1 \n\t"\
        "psubusb %%mm3              , %%mm2 \n\t"\
        "paddusb %%mm3              , %%mm1 \n\t"\
        "paddusb %%mm6              , %%mm2 \n\t"

// in: mm0=p1 mm1=p0 mm2=q0 mm3=q1 mm7=(tc&mask) %8=mm_bone
// out: (q1addr) = av_clip( (q2+((p0+q0+1)>>1))>>1, q1-tc0, q1+tc0 )
// clobbers: q2, tmp, tc0
#define H264_DEBLOCK_Q1(p1, q2, q2addr, q1addr, tc0, tmp)\
        "movq     %%mm1,  "#tmp"   \n\t"\
        "pavgb    %%mm2,  "#tmp"   \n\t"\
        "pavgb    "#tmp", "#q2"    \n\t" /* avg(p2,avg(p0,q0)) */\
        "pxor   "q2addr", "#tmp"   \n\t"\
        "pand     %8,     "#tmp"   \n\t" /* (p2^avg(p0,q0))&1 */\
        "psubusb  "#tmp", "#q2"    \n\t" /* (p2+((p0+q0+1)>>1))>>1 */\
        "movq     "#p1",  "#tmp"   \n\t"\
        "psubusb  "#tc0", "#tmp"   \n\t"\
        "paddusb  "#p1",  "#tc0"   \n\t"\
        "pmaxub   "#tmp", "#q2"    \n\t"\
        "pminub   "#tc0", "#q2"    \n\t"\
        "movq     "#q2",  "q1addr" \n\t"

static inline void h264_loop_filter_luma_mmx2(uint8_t *pix, int stride, int alpha1, int beta1, int8_t *tc0)
{
    DECLARE_ALIGNED_8(uint64_t, tmp0[2]);

    asm volatile(
        "movq    (%1,%3), %%mm0    \n\t" //p1
        "movq    (%1,%3,2), %%mm1  \n\t" //p0
        "movq    (%2),    %%mm2    \n\t" //q0
        "movq    (%2,%3), %%mm3    \n\t" //q1
        H264_DEBLOCK_MASK(%6, %7)

        "movd      %5,    %%mm4    \n\t"
        "punpcklbw %%mm4, %%mm4    \n\t"
        "punpcklwd %%mm4, %%mm4    \n\t"
        "pcmpeqb   %%mm3, %%mm3    \n\t"
        "movq      %%mm4, %%mm6    \n\t"
        "pcmpgtb   %%mm3, %%mm4    \n\t"
        "movq      %%mm6, 8+%0     \n\t"
        "pand      %%mm4, %%mm7    \n\t"
        "movq      %%mm7, %0       \n\t"

        /* filter p1 */
        "movq     (%1),   %%mm3    \n\t" //p2
        DIFF_GT2_MMX(%%mm1, %%mm3, %%mm5, %%mm6, %%mm4) // |p2-p0|>beta-1
        "pand     %%mm7,  %%mm6    \n\t" // mask & |p2-p0|<beta
        "pand     8+%0,   %%mm7    \n\t" // mask & tc0
        "movq     %%mm7,  %%mm4    \n\t"
        "psubb    %%mm6,  %%mm7    \n\t"
        "pand     %%mm4,  %%mm6    \n\t" // mask & |p2-p0|<beta & tc0
        H264_DEBLOCK_Q1(%%mm0, %%mm3, "(%1)", "(%1,%3)", %%mm6, %%mm4)

        /* filter q1 */
        "movq    (%2,%3,2), %%mm4  \n\t" //q2
        DIFF_GT2_MMX(%%mm2, %%mm4, %%mm5, %%mm6, %%mm3) // |q2-q0|>beta-1
        "pand     %0,     %%mm6    \n\t"
        "movq     8+%0,   %%mm5    \n\t" // can be merged with the and below but is slower then
        "pand     %%mm6,  %%mm5    \n\t"
        "psubb    %%mm6,  %%mm7    \n\t"
        "movq    (%2,%3), %%mm3    \n\t"
        H264_DEBLOCK_Q1(%%mm3, %%mm4, "(%2,%3,2)", "(%2,%3)", %%mm5, %%mm6)

        /* filter p0, q0 */
        H264_DEBLOCK_P0_Q0(%8, unused)
        "movq      %%mm1, (%1,%3,2) \n\t"
        "movq      %%mm2, (%2)      \n\t"

        : "=m"(*tmp0)
        : "r"(pix-3*stride), "r"(pix), "r"((long)stride),
          "m"(*tmp0/*unused*/), "m"(*(uint32_t*)tc0), "m"(alpha1), "m"(beta1),
          "m"(mm_bone)
    );
}

static void h264_v_loop_filter_luma_mmx2(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
{
    if((tc0[0] & tc0[1]) >= 0)
        h264_loop_filter_luma_mmx2(pix, stride, alpha-1, beta-1, tc0);
    if((tc0[2] & tc0[3]) >= 0)
        h264_loop_filter_luma_mmx2(pix+8, stride, alpha-1, beta-1, tc0+2);
}
static void h264_h_loop_filter_luma_mmx2(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
{
    //FIXME: could cut some load/stores by merging transpose with filter
    // also, it only needs to transpose 6x8
    DECLARE_ALIGNED_8(uint8_t, trans[8*8]);
    int i;
    for(i=0; i<2; i++, pix+=8*stride, tc0+=2) {
        if((tc0[0] & tc0[1]) < 0)
            continue;
        transpose4x4(trans,       pix-4,          8, stride);
        transpose4x4(trans  +4*8, pix,            8, stride);
        transpose4x4(trans+4,     pix-4+4*stride, 8, stride);
        transpose4x4(trans+4+4*8, pix  +4*stride, 8, stride);
        h264_loop_filter_luma_mmx2(trans+4*8, 8, alpha-1, beta-1, tc0);
        transpose4x4(pix-2,          trans  +2*8, stride, 8);
        transpose4x4(pix-2+4*stride, trans+4+2*8, stride, 8);
    }
}

static inline void h264_loop_filter_chroma_mmx2(uint8_t *pix, int stride, int alpha1, int beta1, int8_t *tc0)
{
    asm volatile(
        "movq    (%0),    %%mm0     \n\t" //p1
        "movq    (%0,%2), %%mm1     \n\t" //p0
        "movq    (%1),    %%mm2     \n\t" //q0
        "movq    (%1,%2), %%mm3     \n\t" //q1
        H264_DEBLOCK_MASK(%4, %5)
        "movd      %3,    %%mm6     \n\t"
        "punpcklbw %%mm6, %%mm6     \n\t"
        "pand      %%mm6, %%mm7     \n\t" // mm7 = tc&mask
        H264_DEBLOCK_P0_Q0(%6, %7)
        "movq      %%mm1, (%0,%2)   \n\t"
        "movq      %%mm2, (%1)      \n\t"

        :: "r"(pix-2*stride), "r"(pix), "r"((long)stride),
           "r"(*(uint32_t*)tc0),
           "m"(alpha1), "m"(beta1), "m"(mm_bone), "m"(ff_pb_3F)
    );
}

static void h264_v_loop_filter_chroma_mmx2(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
{
    h264_loop_filter_chroma_mmx2(pix, stride, alpha-1, beta-1, tc0);
}

static void h264_h_loop_filter_chroma_mmx2(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0)
{
    //FIXME: could cut some load/stores by merging transpose with filter
    DECLARE_ALIGNED_8(uint8_t, trans[8*4]);
    transpose4x4(trans, pix-2, 8, stride);
    transpose4x4(trans+4, pix-2+4*stride, 8, stride);
    h264_loop_filter_chroma_mmx2(trans+2*8, 8, alpha-1, beta-1, tc0);
    transpose4x4(pix-2, trans, stride, 8);
    transpose4x4(pix-2+4*stride, trans+4, stride, 8);
}

// p0 = (p0 + q1 + 2*p1 + 2) >> 2
#define H264_FILTER_CHROMA4(p0, p1, q1, one) \
    "movq    "#p0", %%mm4  \n\t"\
    "pxor    "#q1", %%mm4  \n\t"\
    "pand   "#one", %%mm4  \n\t" /* mm4 = (p0^q1)&1 */\
    "pavgb   "#q1", "#p0"  \n\t"\
    "psubusb %%mm4, "#p0"  \n\t"\
    "pavgb   "#p1", "#p0"  \n\t" /* dst = avg(p1, avg(p0,q1) - ((p0^q1)&1)) */\

static inline void h264_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int alpha1, int beta1)
{
    asm volatile(
        "movq    (%0),    %%mm0     \n\t"
        "movq    (%0,%2), %%mm1     \n\t"
        "movq    (%1),    %%mm2     \n\t"
        "movq    (%1,%2), %%mm3     \n\t"
        H264_DEBLOCK_MASK(%3, %4)
        "movq    %%mm1,   %%mm5     \n\t"
        "movq    %%mm2,   %%mm6     \n\t"
        H264_FILTER_CHROMA4(%%mm1, %%mm0, %%mm3, %5) //p0'
        H264_FILTER_CHROMA4(%%mm2, %%mm3, %%mm0, %5) //q0'
        "psubb   %%mm5,   %%mm1     \n\t"
        "psubb   %%mm6,   %%mm2     \n\t"
        "pand    %%mm7,   %%mm1     \n\t"
        "pand    %%mm7,   %%mm2     \n\t"
        "paddb   %%mm5,   %%mm1     \n\t"
        "paddb   %%mm6,   %%mm2     \n\t"
        "movq    %%mm1,   (%0,%2)   \n\t"
        "movq    %%mm2,   (%1)      \n\t"
        :: "r"(pix-2*stride), "r"(pix), "r"((long)stride),
           "m"(alpha1), "m"(beta1), "m"(mm_bone)
    );
}

static void h264_v_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int alpha, int beta)
{
    h264_loop_filter_chroma_intra_mmx2(pix, stride, alpha-1, beta-1);
}

static void h264_h_loop_filter_chroma_intra_mmx2(uint8_t *pix, int stride, int alpha, int beta)
{
    //FIXME: could cut some load/stores by merging transpose with filter
    DECLARE_ALIGNED_8(uint8_t, trans[8*4]);
    transpose4x4(trans, pix-2, 8, stride);
    transpose4x4(trans+4, pix-2+4*stride, 8, stride);
    h264_loop_filter_chroma_intra_mmx2(trans+2*8, 8, alpha-1, beta-1);
    transpose4x4(pix-2, trans, stride, 8);
    transpose4x4(pix-2+4*stride, trans+4, stride, 8);
}

static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
                                            int bidir, int edges, int step, int mask_mv0, int mask_mv1 ) {
    int dir;
    asm volatile(
        "pxor %%mm7, %%mm7 \n\t"
        "movq %0, %%mm6 \n\t"
        "movq %1, %%mm5 \n\t"
        "movq %2, %%mm4 \n\t"
        ::"m"(ff_pb_1), "m"(ff_pb_3), "m"(ff_pb_7)
    );
    // could do a special case for dir==0 && edges==1, but it only reduces the
    // average filter time by 1.2%
    for( dir=1; dir>=0; dir-- ) {
        const int d_idx = dir ? -8 : -1;
        const int mask_mv = dir ? mask_mv1 : mask_mv0;
        DECLARE_ALIGNED_8(const uint64_t, mask_dir) = dir ? 0 : 0xffffffffffffffffULL;
        int b_idx, edge, l;
        for( b_idx=12, edge=0; edge<edges; edge+=step, b_idx+=8*step ) {
            asm volatile(
                "pand %0, %%mm0 \n\t"
                ::"m"(mask_dir)
            );
            if(!(mask_mv & edge)) {
                asm volatile("pxor %%mm0, %%mm0 \n\t":);
                for( l = bidir; l >= 0; l-- ) {
                    asm volatile(
                        "movd %0, %%mm1 \n\t"
                        "punpckldq %1, %%mm1 \n\t"
                        "movq %%mm1, %%mm2 \n\t"
                        "psrlw $7, %%mm2 \n\t"
                        "pand %%mm6, %%mm2 \n\t"
                        "por %%mm2, %%mm1 \n\t" // ref_cache with -2 mapped to -1
                        "punpckldq %%mm1, %%mm2 \n\t"
                        "pcmpeqb %%mm2, %%mm1 \n\t"
                        "paddb %%mm6, %%mm1 \n\t"
                        "punpckhbw %%mm7, %%mm1 \n\t" // ref[b] != ref[bn]
                        "por %%mm1, %%mm0 \n\t"

                        "movq %2, %%mm1 \n\t"
                        "movq %3, %%mm2 \n\t"
                        "psubw %4, %%mm1 \n\t"
                        "psubw %5, %%mm2 \n\t"
                        "packsswb %%mm2, %%mm1 \n\t"
                        "paddb %%mm5, %%mm1 \n\t"
                        "pminub %%mm4, %%mm1 \n\t"
                        "pcmpeqb %%mm4, %%mm1 \n\t" // abs(mv[b] - mv[bn]) >= limit
                        "por %%mm1, %%mm0 \n\t"
                        ::"m"(ref[l][b_idx]),
                          "m"(ref[l][b_idx+d_idx]),
                          "m"(mv[l][b_idx][0]),
                          "m"(mv[l][b_idx+2][0]),
                          "m"(mv[l][b_idx+d_idx][0]),
                          "m"(mv[l][b_idx+d_idx+2][0])
                    );
                }
            }
            asm volatile(
                "movd %0, %%mm1 \n\t"
                "por  %1, %%mm1 \n\t"
                "punpcklbw %%mm7, %%mm1 \n\t"
                "pcmpgtw %%mm7, %%mm1 \n\t" // nnz[b] || nnz[bn]
                ::"m"(nnz[b_idx]),
                  "m"(nnz[b_idx+d_idx])
            );
            asm volatile(
                "pcmpeqw %%mm7, %%mm0 \n\t"
                "pcmpeqw %%mm7, %%mm0 \n\t"
                "psrlw $15, %%mm0 \n\t" // nonzero -> 1
                "psrlw $14, %%mm1 \n\t"
                "movq %%mm0, %%mm2 \n\t"
                "por %%mm1, %%mm2 \n\t"
                "psrlw $1, %%mm1 \n\t"
                "pandn %%mm2, %%mm1 \n\t"
                "movq %%mm1, %0 \n\t"
                :"=m"(*bS[dir][edge])
                ::"memory"
            );
        }
        edges = 4;
        step = 1;
    }
    asm volatile(
        "movq   (%0), %%mm0 \n\t"
        "movq  8(%0), %%mm1 \n\t"
        "movq 16(%0), %%mm2 \n\t"
        "movq 24(%0), %%mm3 \n\t"
        TRANSPOSE4(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4)
        "movq %%mm0,   (%0) \n\t"
        "movq %%mm3,  8(%0) \n\t"
        "movq %%mm4, 16(%0) \n\t"
        "movq %%mm2, 24(%0) \n\t"
        ::"r"(bS[0])
        :"memory"
    );
}

/***********************************/
/* motion compensation */

#define QPEL_H264V(A,B,C,D,E,F,OP)\
        "movd (%0), "#F"            \n\t"\
        "movq "#C", %%mm6           \n\t"\
        "paddw "#D", %%mm6          \n\t"\
        "psllw $2, %%mm6            \n\t"\
        "psubw "#B", %%mm6          \n\t"\
        "psubw "#E", %%mm6          \n\t"\
        "pmullw %4, %%mm6           \n\t"\
        "add %2, %0                 \n\t"\
        "punpcklbw %%mm7, "#F"      \n\t"\
        "paddw %5, "#A"             \n\t"\
        "paddw "#F", "#A"           \n\t"\
        "paddw "#A", %%mm6          \n\t"\
        "psraw $5, %%mm6            \n\t"\
        "packuswb %%mm6, %%mm6      \n\t"\
        OP(%%mm6, (%1), A, d)\
        "add %3, %1                 \n\t"

#define QPEL_H264HV(A,B,C,D,E,F,OF)\
        "movd (%0), "#F"            \n\t"\
        "movq "#C", %%mm6           \n\t"\
        "paddw "#D", %%mm6          \n\t"\
        "psllw $2, %%mm6            \n\t"\
        "psubw "#B", %%mm6          \n\t"\
        "psubw "#E", %%mm6          \n\t"\
        "pmullw %3, %%mm6           \n\t"\
        "add %2, %0                 \n\t"\
        "punpcklbw %%mm7, "#F"      \n\t"\
        "paddw "#F", "#A"           \n\t"\
        "paddw "#A", %%mm6          \n\t"\
        "movq %%mm6, "#OF"(%1)      \n\t"

#define QPEL_H264(OPNAME, OP, MMX)\
static av_noinline void OPNAME ## h264_qpel4_h_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    int h=4;\
\
    asm volatile(\
        "pxor %%mm7, %%mm7          \n\t"\
        "movq %5, %%mm4             \n\t"\
        "movq %6, %%mm5             \n\t"\
        "1:                         \n\t"\
        "movd  -1(%0), %%mm1        \n\t"\
        "movd    (%0), %%mm2        \n\t"\
        "movd   1(%0), %%mm3        \n\t"\
        "movd   2(%0), %%mm0        \n\t"\
        "punpcklbw %%mm7, %%mm1     \n\t"\
        "punpcklbw %%mm7, %%mm2     \n\t"\
        "punpcklbw %%mm7, %%mm3     \n\t"\
        "punpcklbw %%mm7, %%mm0     \n\t"\
        "paddw %%mm0, %%mm1         \n\t"\
        "paddw %%mm3, %%mm2         \n\t"\
        "movd  -2(%0), %%mm0        \n\t"\
        "movd   3(%0), %%mm3        \n\t"\
        "punpcklbw %%mm7, %%mm0     \n\t"\
        "punpcklbw %%mm7, %%mm3     \n\t"\
        "paddw %%mm3, %%mm0         \n\t"\
        "psllw $2, %%mm2            \n\t"\
        "psubw %%mm1, %%mm2         \n\t"\
        "pmullw %%mm4, %%mm2        \n\t"\
        "paddw %%mm5, %%mm0         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"\
        "psraw $5, %%mm0            \n\t"\
        "packuswb %%mm0, %%mm0      \n\t"\
        OP(%%mm0, (%1),%%mm6, d)\
        "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"((long)srcStride), "S"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
        : "memory"\
    );\
}\
static av_noinline void OPNAME ## h264_qpel4_h_lowpass_l2_ ## MMX(uint8_t *dst, uint8_t *src, uint8_t *src2, int dstStride, int src2Stride){\
    int h=4;\
    asm volatile(\
        "pxor %%mm7, %%mm7          \n\t"\
        "movq %0, %%mm4             \n\t"\
        "movq %1, %%mm5             \n\t"\
        :: "m"(ff_pw_5), "m"(ff_pw_16)\
    );\
    do{\
    asm volatile(\
        "movd  -1(%0), %%mm1        \n\t"\
        "movd    (%0), %%mm2        \n\t"\
        "movd   1(%0), %%mm3        \n\t"\
        "movd   2(%0), %%mm0        \n\t"\
        "punpcklbw %%mm7, %%mm1     \n\t"\
        "punpcklbw %%mm7, %%mm2     \n\t"\
        "punpcklbw %%mm7, %%mm3     \n\t"\
        "punpcklbw %%mm7, %%mm0     \n\t"\
        "paddw %%mm0, %%mm1         \n\t"\
        "paddw %%mm3, %%mm2         \n\t"\
        "movd  -2(%0), %%mm0        \n\t"\
        "movd   3(%0), %%mm3        \n\t"\
        "punpcklbw %%mm7, %%mm0     \n\t"\
        "punpcklbw %%mm7, %%mm3     \n\t"\
        "paddw %%mm3, %%mm0         \n\t"\
        "psllw $2, %%mm2            \n\t"\
        "psubw %%mm1, %%mm2         \n\t"\
        "pmullw %%mm4, %%mm2        \n\t"\
        "paddw %%mm5, %%mm0         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"\
        "movd   (%2), %%mm3         \n\t"\
        "psraw $5, %%mm0            \n\t"\
        "packuswb %%mm0, %%mm0      \n\t"\
        PAVGB" %%mm3, %%mm0         \n\t"\
        OP(%%mm0, (%1),%%mm6, d)\
        "add %4, %0                 \n\t"\
        "add %4, %1                 \n\t"\
        "add %3, %2                 \n\t"\
        : "+a"(src), "+c"(dst), "+d"(src2)\
        : "D"((long)src2Stride), "S"((long)dstStride)\
        : "memory"\
    );\
    }while(--h);\
}\
static av_noinline void OPNAME ## h264_qpel4_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    src -= 2*srcStride;\
    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"\
        QPEL_H264V(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP)\
        QPEL_H264V(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP)\
        QPEL_H264V(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP)\
        QPEL_H264V(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP)\
         \
        : "+a"(src), "+c"(dst)\
        : "S"((long)srcStride), "D"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
        : "memory"\
    );\
}\
static av_noinline void OPNAME ## h264_qpel4_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, uint8_t *src, int dstStride, int tmpStride, int srcStride){\
    int h=4;\
    int w=3;\
    src -= 2*srcStride+2;\
    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"\
            QPEL_H264HV(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, 0*8*3)\
            QPEL_H264HV(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, 1*8*3)\
            QPEL_H264HV(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, 2*8*3)\
            QPEL_H264HV(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, 3*8*3)\
             \
            : "+a"(src)\
            : "c"(tmp), "S"((long)srcStride), "m"(ff_pw_5)\
            : "memory"\
        );\
        tmp += 4;\
        src += 4 - 9*srcStride;\
    }\
    tmp -= 3*4;\
    asm volatile(\
        "movq %4, %%mm6             \n\t"\
        "1:                         \n\t"\
        "movq     (%0), %%mm0       \n\t"\
        "paddw  10(%0), %%mm0       \n\t"\
        "movq    2(%0), %%mm1       \n\t"\
        "paddw   8(%0), %%mm1       \n\t"\
        "movq    4(%0), %%mm2       \n\t"\
        "paddw   6(%0), %%mm2       \n\t"\
        "psubw %%mm1, %%mm0         \n\t"/*a-b   (abccba)*/\
        "psraw $2, %%mm0            \n\t"/*(a-b)/4 */\
        "psubw %%mm1, %%mm0         \n\t"/*(a-b)/4-b */\
        "paddsw %%mm2, %%mm0        \n\t"\
        "psraw $2, %%mm0            \n\t"/*((a-b)/4-b+c)/4 */\
        "paddw %%mm6, %%mm2         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"/*(a-5*b+20*c)/16 +32 */\
        "psraw $6, %%mm0            \n\t"\
        "packuswb %%mm0, %%mm0      \n\t"\
        OP(%%mm0, (%1),%%mm7, d)\
        "add $24, %0                \n\t"\
        "add %3, %1                 \n\t"\
        "decl %2                    \n\t"\
        " jnz 1b                    \n\t"\
        : "+a"(tmp), "+c"(dst), "+m"(h)\
        : "S"((long)dstStride), "m"(ff_pw_32)\
        : "memory"\
    );\
}\
\
static av_noinline void OPNAME ## h264_qpel8_h_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    int h=8;\
    asm volatile(\
        "pxor %%mm7, %%mm7          \n\t"\
        "movq %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"\
        "psllw $2, %%mm0            \n\t"\
        "psllw $2, %%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"\
        "pmullw %%mm6, %%mm0        \n\t"\
        "pmullw %%mm6, %%mm1        \n\t"\
        "movd   -2(%0), %%mm2       \n\t"\
        "movd    7(%0), %%mm5       \n\t"\
        "punpcklbw %%mm7, %%mm2     \n\t"\
        "punpcklbw %%mm7, %%mm5     \n\t"\
        "paddw %%mm3, %%mm2         \n\t"\
        "paddw %%mm5, %%mm4         \n\t"\
        "movq %6, %%mm5             \n\t"\
        "paddw %%mm5, %%mm2         \n\t"\
        "paddw %%mm5, %%mm4         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"\
        "paddw %%mm4, %%mm1         \n\t"\
        "psraw $5, %%mm0            \n\t"\
        "psraw $5, %%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"((long)srcStride), "S"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
        : "memory"\
    );\
}\
\
static av_noinline void OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(uint8_t *dst, uint8_t *src, uint8_t *src2, int dstStride, int src2Stride){\
    int h=8;\
    asm volatile(\
        "pxor %%mm7, %%mm7          \n\t"\
        "movq %0, %%mm6             \n\t"\
        :: "m"(ff_pw_5)\
    );\
    do{\
    asm volatile(\
        "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"\
        "psllw $2, %%mm0            \n\t"\
        "psllw $2, %%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"\
        "pmullw %%mm6, %%mm0        \n\t"\
        "pmullw %%mm6, %%mm1        \n\t"\
        "movd   -2(%0), %%mm2       \n\t"\
        "movd    7(%0), %%mm5       \n\t"\
        "punpcklbw %%mm7, %%mm2     \n\t"\
        "punpcklbw %%mm7, %%mm5     \n\t"\
        "paddw %%mm3, %%mm2         \n\t"\
        "paddw %%mm5, %%mm4         \n\t"\
        "movq %5, %%mm5             \n\t"\
        "paddw %%mm5, %%mm2         \n\t"\
        "paddw %%mm5, %%mm4         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"\
        "paddw %%mm4, %%mm1         \n\t"\
        "psraw $5, %%mm0            \n\t"\
        "psraw $5, %%mm1            \n\t"\
        "movq (%2), %%mm4           \n\t"\
        "packuswb %%mm1, %%mm0      \n\t"\
        PAVGB" %%mm4, %%mm0         \n\t"\
        OP(%%mm0, (%1),%%mm5, q)\
        "add %4, %0                 \n\t"\
        "add %4, %1                 \n\t"\
        "add %3, %2                 \n\t"\
        : "+a"(src), "+c"(dst), "+d"(src2)\
        : "D"((long)src2Stride), "S"((long)dstStride),\
          "m"(ff_pw_16)\
        : "memory"\
    );\
    }while(--h);\
}\
\
static av_noinline void OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){\
    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"\
        QPEL_H264V(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP)\
        QPEL_H264V(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP)\
        QPEL_H264V(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP)\
        QPEL_H264V(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP)\
        QPEL_H264V(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP)\
        QPEL_H264V(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP)\
        QPEL_H264V(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP)\
        QPEL_H264V(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP)\
         \
        : "+a"(src), "+c"(dst)\
        : "S"((long)srcStride), "D"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
        : "memory"\
     );\
     if(h==16){\
        asm volatile(\
            QPEL_H264V(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP)\
            QPEL_H264V(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP)\
            QPEL_H264V(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, OP)\
            QPEL_H264V(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, OP)\
            QPEL_H264V(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, OP)\
            QPEL_H264V(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, OP)\
            QPEL_H264V(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, OP)\
            QPEL_H264V(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, OP)\
            \
           : "+a"(src), "+c"(dst)\
           : "S"((long)srcStride), "D"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\
           : "memory"\
        );\
     }\
     src += 4-(h+5)*srcStride;\
     dst += 4-h*dstStride;\
   }\
}\
static av_noinline void OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, uint8_t *src, int dstStride, int tmpStride, int srcStride, int size){\
    int h = size;\
    int w = (size+8)>>2;\
    src -= 2*srcStride+2;\
    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"\
            QPEL_H264HV(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, 0*48)\
            QPEL_H264HV(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, 1*48)\
            QPEL_H264HV(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, 2*48)\
            QPEL_H264HV(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, 3*48)\
            QPEL_H264HV(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, 4*48)\
            QPEL_H264HV(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, 5*48)\
            QPEL_H264HV(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, 6*48)\
            QPEL_H264HV(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, 7*48)\
            : "+a"(src)\
            : "c"(tmp), "S"((long)srcStride), "m"(ff_pw_5)\
            : "memory"\
        );\
        if(size==16){\
            asm volatile(\
                QPEL_H264HV(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1,  8*48)\
                QPEL_H264HV(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2,  9*48)\
                QPEL_H264HV(%%mm4, %%mm5, %%mm0, %%mm1, %%mm2, %%mm3, 10*48)\
                QPEL_H264HV(%%mm5, %%mm0, %%mm1, %%mm2, %%mm3, %%mm4, 11*48)\
                QPEL_H264HV(%%mm0, %%mm1, %%mm2, %%mm3, %%mm4, %%mm5, 12*48)\
                QPEL_H264HV(%%mm1, %%mm2, %%mm3, %%mm4, %%mm5, %%mm0, 13*48)\
                QPEL_H264HV(%%mm2, %%mm3, %%mm4, %%mm5, %%mm0, %%mm1, 14*48)\
                QPEL_H264HV(%%mm3, %%mm4, %%mm5, %%mm0, %%mm1, %%mm2, 15*48)\
                : "+a"(src)\
                : "c"(tmp), "S"((long)srcStride), "m"(ff_pw_5)\
                : "memory"\
            );\
        }\
        tmp += 4;\
        src += 4 - (size+5)*srcStride;\
    }\
    tmp -= size+8;\
    w = size>>4;\
    do{\
    h = size;\
    asm volatile(\
        "movq %4, %%mm6             \n\t"\
        "1:                         \n\t"\
        "movq     (%0), %%mm0       \n\t"\
        "movq    8(%0), %%mm3       \n\t"\
        "movq    2(%0), %%mm1       \n\t"\
        "movq   10(%0), %%mm4       \n\t"\
        "paddw   %%mm4, %%mm0       \n\t"\
        "paddw   %%mm3, %%mm1       \n\t"\
        "paddw  18(%0), %%mm3       \n\t"\
        "paddw  16(%0), %%mm4       \n\t"\
        "movq    4(%0), %%mm2       \n\t"\
        "movq   12(%0), %%mm5       \n\t"\
        "paddw   6(%0), %%mm2       \n\t"\
        "paddw  14(%0), %%mm5       \n\t"\
        "psubw %%mm1, %%mm0         \n\t"\
        "psubw %%mm4, %%mm3         \n\t"\
        "psraw $2, %%mm0            \n\t"\
        "psraw $2, %%mm3            \n\t"\
        "psubw %%mm1, %%mm0         \n\t"\
        "psubw %%mm4, %%mm3         \n\t"\
        "paddsw %%mm2, %%mm0        \n\t"\
        "paddsw %%mm5, %%mm3        \n\t"\
        "psraw $2, %%mm0            \n\t"\
        "psraw $2, %%mm3            \n\t"\
        "paddw %%mm6, %%mm2         \n\t"\
        "paddw %%mm6, %%mm5         \n\t"\
        "paddw %%mm2, %%mm0         \n\t"\
        "paddw %%mm5, %%mm3         \n\t"\
        "psraw $6, %%mm0            \n\t"\
        "psraw $6, %%mm3            \n\t"\
        "packuswb %%mm3, %%mm0      \n\t"\
        OP(%%mm0, (%1),%%mm7, q)\
        "add $48, %0                \n\t"\
        "add %3, %1                 \n\t"\
        "decl %2                    \n\t"\
        " jnz 1b                    \n\t"\
        : "+a"(tmp), "+c"(dst), "+m"(h)\
        : "S"((long)dstStride), "m"(ff_pw_32)\
        : "memory"\
    );\
    tmp += 8 - size*24;\
    dst += 8 - size*dstStride;\
    }while(w--);\
}\
\
static void OPNAME ## h264_qpel8_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 8);\
}\
static av_noinline void OPNAME ## h264_qpel16_v_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst  , src  , dstStride, srcStride, 16);\
    OPNAME ## h264_qpel8or16_v_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride, 16);\
}\
\
static av_noinline void OPNAME ## h264_qpel16_h_lowpass_ ## MMX(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
    OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
    OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
    src += 8*srcStride;\
    dst += 8*dstStride;\
    OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst  , src  , dstStride, srcStride);\
    OPNAME ## h264_qpel8_h_lowpass_ ## MMX(dst+8, src+8, dstStride, srcStride);\
}\
\
static av_noinline void OPNAME ## h264_qpel16_h_lowpass_l2_ ## MMX(uint8_t *dst, uint8_t *src, uint8_t *src2, int dstStride, int src2Stride){\
    OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
    OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
    src += 8*dstStride;\
    dst += 8*dstStride;\
    src2 += 8*src2Stride;\
    OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst  , src  , src2  , dstStride, src2Stride);\
    OPNAME ## h264_qpel8_h_lowpass_l2_ ## MMX(dst+8, src+8, src2+8, dstStride, src2Stride);\
}\
\
static void OPNAME ## h264_qpel8_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, uint8_t *src, int dstStride, int tmpStride, int srcStride){\
    OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst  , tmp  , src  , dstStride, tmpStride, srcStride, 8);\
}\
\
static void OPNAME ## h264_qpel16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, uint8_t *src, int dstStride, int tmpStride, int srcStride){\
    OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(dst  , tmp  , src  , dstStride, tmpStride, srcStride, 16);\
}\
\
static av_noinline void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
{\
    asm volatile(\
        "movq       %5,  %%mm6          \n\t"\
        "movq      (%1), %%mm0          \n\t"\
        "movq    24(%1), %%mm1          \n\t"\
        "paddw    %%mm6, %%mm0          \n\t"\
        "paddw    %%mm6, %%mm1          \n\t"\
        "psraw      $5,  %%mm0          \n\t"\
        "psraw      $5,  %%mm1          \n\t"\
        "packuswb %%mm0, %%mm0          \n\t"\
        "packuswb %%mm1, %%mm1          \n\t"\
        PAVGB"     (%0), %%mm0          \n\t"\
        PAVGB"  (%0,%3), %%mm1          \n\t"\
        OP(%%mm0, (%2),    %%mm4, d)\
        OP(%%mm1, (%2,%4), %%mm5, d)\
        "lea  (%0,%3,2), %0             \n\t"\
        "lea  (%2,%4,2), %2             \n\t"\
        "movq    48(%1), %%mm0          \n\t"\
        "movq    72(%1), %%mm1          \n\t"\
        "paddw    %%mm6, %%mm0          \n\t"\
        "paddw    %%mm6, %%mm1          \n\t"\
        "psraw      $5,  %%mm0          \n\t"\
        "psraw      $5,  %%mm1          \n\t"\
        "packuswb %%mm0, %%mm0          \n\t"\
        "packuswb %%mm1, %%mm1          \n\t"\
        PAVGB"     (%0), %%mm0          \n\t"\
        PAVGB"  (%0,%3), %%mm1          \n\t"\
        OP(%%mm0, (%2),    %%mm4, d)\
        OP(%%mm1, (%2,%4), %%mm5, d)\
        :"+a"(src8), "+c"(src16), "+d"(dst)\
        :"S"((long)src8Stride), "D"((long)dstStride), "m"(ff_pw_16)\
        :"memory");\
}\
static av_noinline void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
{\
    asm volatile(\
        "movq       %0,  %%mm6          \n\t"\
        ::"m"(ff_pw_16)\
        );\
    while(h--){\
    asm volatile(\
        "movq      (%1), %%mm0          \n\t"\
        "movq     8(%1), %%mm1          \n\t"\
        "paddw    %%mm6, %%mm0          \n\t"\
        "paddw    %%mm6, %%mm1          \n\t"\
        "psraw      $5,  %%mm0          \n\t"\
        "psraw      $5,  %%mm1          \n\t"\
        "packuswb %%mm1, %%mm0          \n\t"\
        PAVGB"     (%0), %%mm0          \n\t"\
        OP(%%mm0, (%2), %%mm5, q)\
        ::"a"(src8), "c"(src16), "d"(dst)\
        :"memory");\
        src8 += src8Stride;\
        src16 += 24;\
        dst += dstStride;\
    }\
}\
static void OPNAME ## pixels16_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
{\
    OPNAME ## pixels8_l2_shift5_ ## MMX(dst  , src16  , src8  , dstStride, src8Stride, h);\
    OPNAME ## pixels8_l2_shift5_ ## MMX(dst+8, src16+8, src8+8, dstStride, src8Stride, h);\
}\


#define H264_MC(OPNAME, SIZE, MMX) \
static void OPNAME ## h264_qpel ## SIZE ## _mc00_ ## MMX (uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## pixels ## SIZE ## _mmx(dst, src, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc10_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, src, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc20_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_ ## MMX(dst, src, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc30_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, src+1, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc01_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const half= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(half, src, SIZE, stride);\
    OPNAME ## pixels ## SIZE ## _l2_ ## MMX(dst, src, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc02_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    OPNAME ## h264_qpel ## SIZE ## _v_lowpass_ ## MMX(dst, src, stride, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc03_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const half= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(half, src, SIZE, stride);\
    OPNAME ## pixels ## SIZE ## _l2_ ## MMX(dst, src+stride, half, stride, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc11_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const halfV= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(halfV, src, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, halfV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc31_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const halfV= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(halfV, src+1, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, halfV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc13_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const halfV= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(halfV, src, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, halfV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc33_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*SIZE/8];\
    uint8_t * const halfV= (uint8_t*)temp;\
    put_h264_qpel ## SIZE ## _v_lowpass_ ## MMX(halfV, src+1, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, halfV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc22_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*(SIZE<8?12:24)/4];\
    int16_t * const tmp= (int16_t*)temp;\
    OPNAME ## h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(dst, tmp, src, stride, SIZE, stride);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc21_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*(SIZE<8?12:24)/4 + SIZE*SIZE/8];\
    uint8_t * const halfHV= (uint8_t*)temp;\
    int16_t * const tmp= ((int16_t*)temp) + SIZE*SIZE/2;\
    assert((int)temp & 7 == 0);\
    put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, tmp, src, SIZE, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src, halfHV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc23_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*(SIZE<8?12:24)/4 + SIZE*SIZE/8];\
    uint8_t * const halfHV= (uint8_t*)temp;\
    int16_t * const tmp= ((int16_t*)temp) + SIZE*SIZE/2;\
    assert((int)temp & 7 == 0);\
    put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, tmp, src, SIZE, SIZE, stride);\
    OPNAME ## h264_qpel ## SIZE ## _h_lowpass_l2_ ## MMX(dst, src+stride, halfHV, stride, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc12_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*(SIZE<8?12:24)/4 + SIZE*SIZE/8];\
    int16_t * const halfV= ((int16_t*)temp) + SIZE*SIZE/2;\
    uint8_t * const halfHV= ((uint8_t*)temp);\
    assert((int)temp & 7 == 0);\
    put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
    OPNAME ## pixels ## SIZE ## _l2_shift5_ ## MMX(dst, halfV+2, halfHV, stride, SIZE, SIZE);\
}\
\
static void OPNAME ## h264_qpel ## SIZE ## _mc32_ ## MMX(uint8_t *dst, uint8_t *src, int stride){\
    uint64_t temp[SIZE*(SIZE<8?12:24)/4 + SIZE*SIZE/8];\
    int16_t * const halfV= ((int16_t*)temp) + SIZE*SIZE/2;\
    uint8_t * const halfHV= ((uint8_t*)temp);\
    assert((int)temp & 7 == 0);\
    put_h264_qpel ## SIZE ## _hv_lowpass_ ## MMX(halfHV, halfV, src, SIZE, SIZE, stride);\
    OPNAME ## pixels ## SIZE ## _l2_shift5_ ## MMX(dst, halfV+3, halfHV, stride, SIZE, SIZE);\
}\


#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_MMX2_OP(a,b,temp, size) \
"mov" #size " " #b ", " #temp "   \n\t"\
"pavgb " #temp ", " #a "          \n\t"\
"mov" #size " " #a ", " #b "      \n\t"

#define PAVGB "pavgusb"
QPEL_H264(put_,       PUT_OP, 3dnow)
QPEL_H264(avg_, AVG_3DNOW_OP, 3dnow)
#undef PAVGB
#define PAVGB "pavgb"
QPEL_H264(put_,       PUT_OP, mmx2)
QPEL_H264(avg_,  AVG_MMX2_OP, mmx2)
#undef PAVGB

H264_MC(put_, 4, 3dnow)
H264_MC(put_, 8, 3dnow)
H264_MC(put_, 16,3dnow)
H264_MC(avg_, 4, 3dnow)
H264_MC(avg_, 8, 3dnow)
H264_MC(avg_, 16,3dnow)
H264_MC(put_, 4, mmx2)
H264_MC(put_, 8, mmx2)
H264_MC(put_, 16,mmx2)
H264_MC(avg_, 4, mmx2)
H264_MC(avg_, 8, mmx2)
H264_MC(avg_, 16,mmx2)


#define H264_CHROMA_OP(S,D)
#define H264_CHROMA_OP4(S,D,T)
#define H264_CHROMA_MC8_TMPL put_h264_chroma_mc8_mmx
#define H264_CHROMA_MC4_TMPL put_h264_chroma_mc4_mmx
#define H264_CHROMA_MC2_TMPL put_h264_chroma_mc2_mmx2
#define H264_CHROMA_MC8_MV0 put_pixels8_mmx
#include "dsputil_h264_template_mmx.c"
#undef H264_CHROMA_OP
#undef H264_CHROMA_OP4
#undef H264_CHROMA_MC8_TMPL
#undef H264_CHROMA_MC4_TMPL
#undef H264_CHROMA_MC2_TMPL
#undef H264_CHROMA_MC8_MV0

#define H264_CHROMA_OP(S,D) "pavgb " #S ", " #D " \n\t"
#define H264_CHROMA_OP4(S,D,T) "movd  " #S ", " #T " \n\t"\
                               "pavgb " #T ", " #D " \n\t"
#define H264_CHROMA_MC8_TMPL avg_h264_chroma_mc8_mmx2
#define H264_CHROMA_MC4_TMPL avg_h264_chroma_mc4_mmx2
#define H264_CHROMA_MC2_TMPL avg_h264_chroma_mc2_mmx2
#define H264_CHROMA_MC8_MV0 avg_pixels8_mmx2
#include "dsputil_h264_template_mmx.c"
#undef H264_CHROMA_OP
#undef H264_CHROMA_OP4
#undef H264_CHROMA_MC8_TMPL
#undef H264_CHROMA_MC4_TMPL
#undef H264_CHROMA_MC2_TMPL
#undef H264_CHROMA_MC8_MV0

#define H264_CHROMA_OP(S,D) "pavgusb " #S ", " #D " \n\t"
#define H264_CHROMA_OP4(S,D,T) "movd " #S ", " #T " \n\t"\
                               "pavgusb " #T ", " #D " \n\t"
#define H264_CHROMA_MC8_TMPL avg_h264_chroma_mc8_3dnow
#define H264_CHROMA_MC4_TMPL avg_h264_chroma_mc4_3dnow
#define H264_CHROMA_MC8_MV0 avg_pixels8_3dnow
#include "dsputil_h264_template_mmx.c"
#undef H264_CHROMA_OP
#undef H264_CHROMA_OP4
#undef H264_CHROMA_MC8_TMPL
#undef H264_CHROMA_MC4_TMPL
#undef H264_CHROMA_MC8_MV0

/***********************************/
/* weighted prediction */

static inline void ff_h264_weight_WxH_mmx2(uint8_t *dst, int stride, int log2_denom, int weight, int offset, int w, int h)
{
    int x, y;
    offset <<= log2_denom;
    offset += (1 << log2_denom) >> 1;
    asm volatile(
        "movd    %0, %%mm4        \n\t"
        "movd    %1, %%mm5        \n\t"
        "movd    %2, %%mm6        \n\t"
        "pshufw  $0, %%mm4, %%mm4 \n\t"
        "pshufw  $0, %%mm5, %%mm5 \n\t"
        "pxor    %%mm7, %%mm7     \n\t"
        :: "g"(weight), "g"(offset), "g"(log2_denom)
    );
    for(y=0; y<h; y+=2){
        for(x=0; x<w; x+=4){
            asm volatile(
                "movd      %0,    %%mm0 \n\t"
                "movd      %1,    %%mm1 \n\t"
                "punpcklbw %%mm7, %%mm0 \n\t"
                "punpcklbw %%mm7, %%mm1 \n\t"
                "pmullw    %%mm4, %%mm0 \n\t"
                "pmullw    %%mm4, %%mm1 \n\t"
                "paddsw    %%mm5, %%mm0 \n\t"
                "paddsw    %%mm5, %%mm1 \n\t"
                "psraw     %%mm6, %%mm0 \n\t"
                "psraw     %%mm6, %%mm1 \n\t"
                "packuswb  %%mm7, %%mm0 \n\t"
                "packuswb  %%mm7, %%mm1 \n\t"
                "movd      %%mm0, %0    \n\t"
                "movd      %%mm1, %1    \n\t"
                : "+m"(*(uint32_t*)(dst+x)),
                  "+m"(*(uint32_t*)(dst+x+stride))
            );
        }
        dst += 2*stride;
    }
}

static inline void ff_h264_biweight_WxH_mmx2(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset, int w, int h)
{
    int x, y;
    offset = ((offset + 1) | 1) << log2_denom;
    asm volatile(
        "movd    %0, %%mm3        \n\t"
        "movd    %1, %%mm4        \n\t"
        "movd    %2, %%mm5        \n\t"
        "movd    %3, %%mm6        \n\t"
        "pshufw  $0, %%mm3, %%mm3 \n\t"
        "pshufw  $0, %%mm4, %%mm4 \n\t"
        "pshufw  $0, %%mm5, %%mm5 \n\t"
        "pxor    %%mm7, %%mm7     \n\t"
        :: "g"(weightd), "g"(weights), "g"(offset), "g"(log2_denom+1)
    );
    for(y=0; y<h; y++){
        for(x=0; x<w; x+=4){
            asm volatile(
                "movd      %0,    %%mm0 \n\t"
                "movd      %1,    %%mm1 \n\t"
                "punpcklbw %%mm7, %%mm0 \n\t"
                "punpcklbw %%mm7, %%mm1 \n\t"
                "pmullw    %%mm3, %%mm0 \n\t"
                "pmullw    %%mm4, %%mm1 \n\t"
                "paddsw    %%mm1, %%mm0 \n\t"
                "paddsw    %%mm5, %%mm0 \n\t"
                "psraw     %%mm6, %%mm0 \n\t"
                "packuswb  %%mm0, %%mm0 \n\t"
                "movd      %%mm0, %0    \n\t"
                : "+m"(*(uint32_t*)(dst+x))
                :  "m"(*(uint32_t*)(src+x))
            );
        }
        src += stride;
        dst += stride;
    }
}

#define H264_WEIGHT(W,H) \
static void ff_h264_biweight_ ## W ## x ## H ## _mmx2(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset){ \
    ff_h264_biweight_WxH_mmx2(dst, src, stride, log2_denom, weightd, weights, offset, W, H); \
} \
static void ff_h264_weight_ ## W ## x ## H ## _mmx2(uint8_t *dst, int stride, int log2_denom, int weight, int offset){ \
    ff_h264_weight_WxH_mmx2(dst, stride, log2_denom, weight, offset, W, H); \
}

H264_WEIGHT(16,16)
H264_WEIGHT(16, 8)
H264_WEIGHT( 8,16)
H264_WEIGHT( 8, 8)
H264_WEIGHT( 8, 4)
H264_WEIGHT( 4, 8)
H264_WEIGHT( 4, 4)
H264_WEIGHT( 4, 2)