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/*

 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder

 * Copyright (c) 2003-2011 Michael Niedermayer 

 *

 * 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

 */

/**

 * @file

 * H.264 / AVC / MPEG4 part10 prediction functions.

 * @author Michael Niedermayer 

 */

#include "mathops.h"

#include "bit_depth_template.c"

static void FUNCC(pred4x4_vertical)(uint8_t *_src, const uint8_t *topright,

                                    ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a= AV_RN4PA(src-stride);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_horizontal)(uint8_t *_src, const uint8_t *topright,

                                      ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    AV_WN4PA(src+0*stride, PIXEL_SPLAT_X4(src[-1+0*stride]));

    AV_WN4PA(src+1*stride, PIXEL_SPLAT_X4(src[-1+1*stride]));

    AV_WN4PA(src+2*stride, PIXEL_SPLAT_X4(src[-1+2*stride]));

    AV_WN4PA(src+3*stride, PIXEL_SPLAT_X4(src[-1+3*stride]));

}

static void FUNCC(pred4x4_dc)(uint8_t *_src, const uint8_t *topright,

                              ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int dc= (  src[-stride] + src[1-stride] + src[2-stride] + src[3-stride]

                   + src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3;

    const pixel4 a = PIXEL_SPLAT_X4(dc);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_left_dc)(uint8_t *_src, const uint8_t *topright,

                                   ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int dc= (  src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2;

    const pixel4 a = PIXEL_SPLAT_X4(dc);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_top_dc)(uint8_t *_src, const uint8_t *topright,

                                  ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int dc= (  src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2;

    const pixel4 a = PIXEL_SPLAT_X4(dc);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_128_dc)(uint8_t *_src, const uint8_t *topright,

                                  ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a = PIXEL_SPLAT_X4(1<<(BIT_DEPTH-1));

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_127_dc)(uint8_t *_src, const uint8_t *topright,

                                  ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a = PIXEL_SPLAT_X4((1<<(BIT_DEPTH-1))-1);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

static void FUNCC(pred4x4_129_dc)(uint8_t *_src, const uint8_t *topright,

                                  ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a = PIXEL_SPLAT_X4((1<<(BIT_DEPTH-1))+1);

    AV_WN4PA(src+0*stride, a);

    AV_WN4PA(src+1*stride, a);

    AV_WN4PA(src+2*stride, a);

    AV_WN4PA(src+3*stride, a);

}

#define LOAD_TOP_RIGHT_EDGE\

    const unsigned av_unused t4 = topright[0];\

    const unsigned av_unused t5 = topright[1];\

    const unsigned av_unused t6 = topright[2];\

    const unsigned av_unused t7 = topright[3];\

#define LOAD_DOWN_LEFT_EDGE\

    const unsigned av_unused l4 = src[-1+4*stride];\

    const unsigned av_unused l5 = src[-1+5*stride];\

    const unsigned av_unused l6 = src[-1+6*stride];\

    const unsigned av_unused l7 = src[-1+7*stride];\

#define LOAD_LEFT_EDGE\

    const unsigned av_unused l0 = src[-1+0*stride];\

    const unsigned av_unused l1 = src[-1+1*stride];\

    const unsigned av_unused l2 = src[-1+2*stride];\

    const unsigned av_unused l3 = src[-1+3*stride];\

#define LOAD_TOP_EDGE\

    const unsigned av_unused t0 = src[ 0-1*stride];\

    const unsigned av_unused t1 = src[ 1-1*stride];\

    const unsigned av_unused t2 = src[ 2-1*stride];\

    const unsigned av_unused t3 = src[ 3-1*stride];\

static void FUNCC(pred4x4_down_right)(uint8_t *_src, const uint8_t *topright,

                                      ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int lt= src[-1-1*stride];

    LOAD_TOP_EDGE

    LOAD_LEFT_EDGE

    src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2;

    src[0+2*stride]=

    src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2;

    src[0+1*stride]=

    src[1+2*stride]=

    src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2;

    src[0+0*stride]=

    src[1+1*stride]=

    src[2+2*stride]=

    src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2;

    src[1+0*stride]=

    src[2+1*stride]=

    src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2;

    src[2+0*stride]=

    src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;

    src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2;

}

static void FUNCC(pred4x4_down_left)(uint8_t *_src, const uint8_t *_topright,

                                     ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    const pixel *topright = (const pixel*)_topright;

    int stride = _stride>>(sizeof(pixel)-1);

    LOAD_TOP_EDGE

    LOAD_TOP_RIGHT_EDGE

//    LOAD_LEFT_EDGE

    src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;

    src[1+0*stride]=

    src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;

    src[2+0*stride]=

    src[1+1*stride]=

    src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;

    src[3+0*stride]=

    src[2+1*stride]=

    src[1+2*stride]=

    src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;

    src[3+1*stride]=

    src[2+2*stride]=

    src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;

    src[3+2*stride]=

    src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;

    src[3+3*stride]=(t6 + 3*t7 + 2)>>2;

}

static void FUNCC(pred4x4_vertical_right)(uint8_t *_src,

                                          const uint8_t *topright,

                                          ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int lt= src[-1-1*stride];

    LOAD_TOP_EDGE

    LOAD_LEFT_EDGE

    src[0+0*stride]=

    src[1+2*stride]=(lt + t0 + 1)>>1;

    src[1+0*stride]=

    src[2+2*stride]=(t0 + t1 + 1)>>1;

    src[2+0*stride]=

    src[3+2*stride]=(t1 + t2 + 1)>>1;

    src[3+0*stride]=(t2 + t3 + 1)>>1;

    src[0+1*stride]=

    src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;

    src[1+1*stride]=

    src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;

    src[2+1*stride]=

    src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2;

    src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2;

    src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2;

    src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;

}

static void FUNCC(pred4x4_vertical_left)(uint8_t *_src,

                                         const uint8_t *_topright,

                                         ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    const pixel *topright = (const pixel*)_topright;

    int stride = _stride>>(sizeof(pixel)-1);

    LOAD_TOP_EDGE

    LOAD_TOP_RIGHT_EDGE

    src[0+0*stride]=(t0 + t1 + 1)>>1;

    src[1+0*stride]=

    src[0+2*stride]=(t1 + t2 + 1)>>1;

    src[2+0*stride]=

    src[1+2*stride]=(t2 + t3 + 1)>>1;

    src[3+0*stride]=

    src[2+2*stride]=(t3 + t4+ 1)>>1;

    src[3+2*stride]=(t4 + t5+ 1)>>1;

    src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;

    src[1+1*stride]=

    src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2;

    src[2+1*stride]=

    src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2;

    src[3+1*stride]=

    src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;

    src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;

}

static void FUNCC(pred4x4_horizontal_up)(uint8_t *_src, const uint8_t *topright,

                                         ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    LOAD_LEFT_EDGE

    src[0+0*stride]=(l0 + l1 + 1)>>1;

    src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;

    src[2+0*stride]=

    src[0+1*stride]=(l1 + l2 + 1)>>1;

    src[3+0*stride]=

    src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;

    src[2+1*stride]=

    src[0+2*stride]=(l2 + l3 + 1)>>1;

    src[3+1*stride]=

    src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;

    src[3+2*stride]=

    src[1+3*stride]=

    src[0+3*stride]=

    src[2+2*stride]=

    src[2+3*stride]=

    src[3+3*stride]=l3;

}

static void FUNCC(pred4x4_horizontal_down)(uint8_t *_src,

                                           const uint8_t *topright,

                                           ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const int lt= src[-1-1*stride];

    LOAD_TOP_EDGE

    LOAD_LEFT_EDGE

    src[0+0*stride]=

    src[2+1*stride]=(lt + l0 + 1)>>1;

    src[1+0*stride]=

    src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2;

    src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2;

    src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2;

    src[0+1*stride]=

    src[2+2*stride]=(l0 + l1 + 1)>>1;

    src[1+1*stride]=

    src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;

    src[0+2*stride]=

    src[2+3*stride]=(l1 + l2+ 1)>>1;

    src[1+2*stride]=

    src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;

    src[0+3*stride]=(l2 + l3 + 1)>>1;

    src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;

}

static void FUNCC(pred16x16_vertical)(uint8_t *_src, ptrdiff_t _stride)

{

    int i;

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a = AV_RN4PA(((pixel4*)(src-stride))+0);

    const pixel4 b = AV_RN4PA(((pixel4*)(src-stride))+1);

    const pixel4 c = AV_RN4PA(((pixel4*)(src-stride))+2);

    const pixel4 d = AV_RN4PA(((pixel4*)(src-stride))+3);

    for(i=0; i<16; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, b);

        AV_WN4PA(((pixel4*)(src+i*stride))+2, c);

        AV_WN4PA(((pixel4*)(src+i*stride))+3, d);

    }

}

static void FUNCC(pred16x16_horizontal)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    for(i=0; i<16; i++){

        const pixel4 a = PIXEL_SPLAT_X4(src[-1+i*stride]);

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+2, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+3, a);

    }

}

#define PREDICT_16x16_DC(v)\

    for(i=0; i<16; i++){\

        AV_WN4PA(src+ 0, v);\

        AV_WN4PA(src+ 4, v);\

        AV_WN4PA(src+ 8, v);\

        AV_WN4PA(src+12, v);\

        src += stride;\

    }

static void FUNCC(pred16x16_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i, dc=0;

    pixel *src = (pixel*)_src;

    pixel4 dcsplat;

    stride >>= sizeof(pixel)-1;

    for(i=0;i<16; i++){

        dc+= src[-1+i*stride];

    }

    for(i=0;i<16; i++){

        dc+= src[i-stride];

    }

    dcsplat = PIXEL_SPLAT_X4((dc+16)>>5);

    PREDICT_16x16_DC(dcsplat);

}

static void FUNCC(pred16x16_left_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i, dc=0;

    pixel *src = (pixel*)_src;

    pixel4 dcsplat;

    stride >>= sizeof(pixel)-1;

    for(i=0;i<16; i++){

        dc+= src[-1+i*stride];

    }

    dcsplat = PIXEL_SPLAT_X4((dc+8)>>4);

    PREDICT_16x16_DC(dcsplat);

}

static void FUNCC(pred16x16_top_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i, dc=0;

    pixel *src = (pixel*)_src;

    pixel4 dcsplat;

    stride >>= sizeof(pixel)-1;

    for(i=0;i<16; i++){

        dc+= src[i-stride];

    }

    dcsplat = PIXEL_SPLAT_X4((dc+8)>>4);

    PREDICT_16x16_DC(dcsplat);

}

#define PRED16x16_X(n, v) \

static void FUNCC(pred16x16_##n##_dc)(uint8_t *_src, ptrdiff_t stride)\

{\

    int i;\

    pixel *src = (pixel*)_src;\

    stride >>= sizeof(pixel)-1;\

    PREDICT_16x16_DC(PIXEL_SPLAT_X4(v));\

}

PRED16x16_X(127, (1<<(BIT_DEPTH-1))-1)

PRED16x16_X(128, (1<<(BIT_DEPTH-1))+0)

PRED16x16_X(129, (1<<(BIT_DEPTH-1))+1)

static inline void FUNCC(pred16x16_plane_compat)(uint8_t *_src,

                                                 ptrdiff_t _stride,

                                                 const int svq3,

                                                 const int rv40)

{

  int i, j, k;

  int a;

  INIT_CLIP

  pixel *src = (pixel*)_src;

  int stride = _stride>>(sizeof(pixel)-1);

  const pixel * const src0 = src +7-stride;

  const pixel *       src1 = src +8*stride-1;

  const pixel *       src2 = src1-2*stride;    // == src+6*stride-1;

  int H = src0[1] - src0[-1];

  int V = src1[0] - src2[ 0];

  for(k=2; k<=8; ++k) {

    src1 += stride; src2 -= stride;

    H += k*(src0[k] - src0[-k]);

    V += k*(src1[0] - src2[ 0]);

  }

  if(svq3){

    H = ( 5*(H/4) ) / 16;

    V = ( 5*(V/4) ) / 16;

    /* required for 100% accuracy */

    i = H; H = V; V = i;

  }else if(rv40){

    H = ( H + (H>>2) ) >> 4;

    V = ( V + (V>>2) ) >> 4;

  }else{

    H = ( 5*H+32 ) >> 6;

    V = ( 5*V+32 ) >> 6;

  }

  a = 16*(src1[0] + src2[16] + 1) - 7*(V+H);

  for(j=16; j>0; --j) {

    int b = a;

    a += V;

    for(i=-16; i<0; i+=4) {

      src[16+i] = CLIP((b    ) >> 5);

      src[17+i] = CLIP((b+  H) >> 5);

      src[18+i] = CLIP((b+2*H) >> 5);

      src[19+i] = CLIP((b+3*H) >> 5);

      b += 4*H;

    }

    src += stride;

  }

}

static void FUNCC(pred16x16_plane)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred16x16_plane_compat)(src, stride, 0, 0);

}

static void FUNCC(pred8x8_vertical)(uint8_t *_src, ptrdiff_t _stride)

{

    int i;

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a= AV_RN4PA(((pixel4*)(src-stride))+0);

    const pixel4 b= AV_RN4PA(((pixel4*)(src-stride))+1);

    for(i=0; i<8; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, b);

    }

}

static void FUNCC(pred8x16_vertical)(uint8_t *_src, ptrdiff_t _stride)

{

    int i;

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    const pixel4 a= AV_RN4PA(((pixel4*)(src-stride))+0);

    const pixel4 b= AV_RN4PA(((pixel4*)(src-stride))+1);

    for(i=0; i<16; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, b);

    }

}

static void FUNCC(pred8x8_horizontal)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    for(i=0; i<8; i++){

        const pixel4 a = PIXEL_SPLAT_X4(src[-1+i*stride]);

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, a);

    }

}

static void FUNCC(pred8x16_horizontal)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    for(i=0; i<16; i++){

        const pixel4 a = PIXEL_SPLAT_X4(src[-1+i*stride]);

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, a);

    }

}

#define PRED8x8_X(n, v)\

static void FUNCC(pred8x8_##n##_dc)(uint8_t *_src, ptrdiff_t stride)\

{\

    int i;\

    const pixel4 a = PIXEL_SPLAT_X4(v);\

    pixel *src = (pixel*)_src;\

    stride >>= sizeof(pixel)-1;\

    for(i=0; i<8; i++){\

        AV_WN4PA(((pixel4*)(src+i*stride))+0, a);\

        AV_WN4PA(((pixel4*)(src+i*stride))+1, a);\

    }\

}

PRED8x8_X(127, (1<<(BIT_DEPTH-1))-1)

PRED8x8_X(128, (1<<(BIT_DEPTH-1))+0)

PRED8x8_X(129, (1<<(BIT_DEPTH-1))+1)

static void FUNCC(pred8x16_128_dc)(uint8_t *_src, ptrdiff_t stride)

{

    FUNCC(pred8x8_128_dc)(_src, stride);

    FUNCC(pred8x8_128_dc)(_src+8*stride, stride);

}

static void FUNCC(pred8x8_left_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    int dc0, dc2;

    pixel4 dc0splat, dc2splat;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    dc0=dc2=0;

    for(i=0;i<4; i++){

        dc0+= src[-1+i*stride];

        dc2+= src[-1+(i+4)*stride];

    }

    dc0splat = PIXEL_SPLAT_X4((dc0 + 2)>>2);

    dc2splat = PIXEL_SPLAT_X4((dc2 + 2)>>2);

    for(i=0; i<4; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc0splat);

    }

    for(i=4; i<8; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc2splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc2splat);

    }

}

static void FUNCC(pred8x16_left_dc)(uint8_t *_src, ptrdiff_t stride)

{

    FUNCC(pred8x8_left_dc)(_src, stride);

    FUNCC(pred8x8_left_dc)(_src+8*stride, stride);

}

static void FUNCC(pred8x8_top_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    int dc0, dc1;

    pixel4 dc0splat, dc1splat;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    dc0=dc1=0;

    for(i=0;i<4; i++){

        dc0+= src[i-stride];

        dc1+= src[4+i-stride];

    }

    dc0splat = PIXEL_SPLAT_X4((dc0 + 2)>>2);

    dc1splat = PIXEL_SPLAT_X4((dc1 + 2)>>2);

    for(i=0; i<4; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc1splat);

    }

    for(i=4; i<8; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc1splat);

    }

}

static void FUNCC(pred8x16_top_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    int dc0, dc1;

    pixel4 dc0splat, dc1splat;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    dc0=dc1=0;

    for(i=0;i<4; i++){

        dc0+= src[i-stride];

        dc1+= src[4+i-stride];

    }

    dc0splat = PIXEL_SPLAT_X4((dc0 + 2)>>2);

    dc1splat = PIXEL_SPLAT_X4((dc1 + 2)>>2);

    for(i=0; i<16; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc1splat);

    }

}

static void FUNCC(pred8x8_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    int dc0, dc1, dc2;

    pixel4 dc0splat, dc1splat, dc2splat, dc3splat;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    dc0=dc1=dc2=0;

    for(i=0;i<4; i++){

        dc0+= src[-1+i*stride] + src[i-stride];

        dc1+= src[4+i-stride];

        dc2+= src[-1+(i+4)*stride];

    }

    dc0splat = PIXEL_SPLAT_X4((dc0 + 4)>>3);

    dc1splat = PIXEL_SPLAT_X4((dc1 + 2)>>2);

    dc2splat = PIXEL_SPLAT_X4((dc2 + 2)>>2);

    dc3splat = PIXEL_SPLAT_X4((dc1 + dc2 + 4)>>3);

    for(i=0; i<4; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc1splat);

    }

    for(i=4; i<8; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc2splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc3splat);

    }

}

static void FUNCC(pred8x16_dc)(uint8_t *_src, ptrdiff_t stride)

{

    int i;

    int dc0, dc1, dc2, dc3, dc4;

    pixel4 dc0splat, dc1splat, dc2splat, dc3splat, dc4splat, dc5splat, dc6splat, dc7splat;

    pixel *src = (pixel*)_src;

    stride >>= sizeof(pixel)-1;

    dc0=dc1=dc2=dc3=dc4=0;

    for(i=0;i<4; i++){

        dc0+= src[-1+i*stride] + src[i-stride];

        dc1+= src[4+i-stride];

        dc2+= src[-1+(i+4)*stride];

        dc3+= src[-1+(i+8)*stride];

        dc4+= src[-1+(i+12)*stride];

    }

    dc0splat = PIXEL_SPLAT_X4((dc0 + 4)>>3);

    dc1splat = PIXEL_SPLAT_X4((dc1 + 2)>>2);

    dc2splat = PIXEL_SPLAT_X4((dc2 + 2)>>2);

    dc3splat = PIXEL_SPLAT_X4((dc1 + dc2 + 4)>>3);

    dc4splat = PIXEL_SPLAT_X4((dc3 + 2)>>2);

    dc5splat = PIXEL_SPLAT_X4((dc1 + dc3 + 4)>>3);

    dc6splat = PIXEL_SPLAT_X4((dc4 + 2)>>2);

    dc7splat = PIXEL_SPLAT_X4((dc1 + dc4 + 4)>>3);

    for(i=0; i<4; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc0splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc1splat);

    }

    for(i=4; i<8; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc2splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc3splat);

    }

    for(i=8; i<12; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc4splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc5splat);

    }

    for(i=12; i<16; i++){

        AV_WN4PA(((pixel4*)(src+i*stride))+0, dc6splat);

        AV_WN4PA(((pixel4*)(src+i*stride))+1, dc7splat);

    }

}

//the following 4 function should not be optimized!

static void FUNC(pred8x8_mad_cow_dc_l0t)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x8_top_dc)(src, stride);

    FUNCC(pred4x4_dc)(src, NULL, stride);

}

static void FUNC(pred8x16_mad_cow_dc_l0t)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x16_top_dc)(src, stride);

    FUNCC(pred4x4_dc)(src, NULL, stride);

}

static void FUNC(pred8x8_mad_cow_dc_0lt)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x8_dc)(src, stride);

    FUNCC(pred4x4_top_dc)(src, NULL, stride);

}

static void FUNC(pred8x16_mad_cow_dc_0lt)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x16_dc)(src, stride);

    FUNCC(pred4x4_top_dc)(src, NULL, stride);

}

static void FUNC(pred8x8_mad_cow_dc_l00)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x8_left_dc)(src, stride);

    FUNCC(pred4x4_128_dc)(src + 4*stride                  , NULL, stride);

    FUNCC(pred4x4_128_dc)(src + 4*stride + 4*sizeof(pixel), NULL, stride);

}

static void FUNC(pred8x16_mad_cow_dc_l00)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x16_left_dc)(src, stride);

    FUNCC(pred4x4_128_dc)(src + 4*stride                  , NULL, stride);

    FUNCC(pred4x4_128_dc)(src + 4*stride + 4*sizeof(pixel), NULL, stride);

}

static void FUNC(pred8x8_mad_cow_dc_0l0)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x8_left_dc)(src, stride);

    FUNCC(pred4x4_128_dc)(src                  , NULL, stride);

    FUNCC(pred4x4_128_dc)(src + 4*sizeof(pixel), NULL, stride);

}

static void FUNC(pred8x16_mad_cow_dc_0l0)(uint8_t *src, ptrdiff_t stride)

{

    FUNCC(pred8x16_left_dc)(src, stride);

    FUNCC(pred4x4_128_dc)(src                  , NULL, stride);

    FUNCC(pred4x4_128_dc)(src + 4*sizeof(pixel), NULL, stride);

}

static void FUNCC(pred8x8_plane)(uint8_t *_src, ptrdiff_t _stride)

{

  int j, k;

  int a;

  INIT_CLIP

  pixel *src = (pixel*)_src;

  int stride = _stride>>(sizeof(pixel)-1);

  const pixel * const src0 = src +3-stride;

  const pixel *       src1 = src +4*stride-1;

  const pixel *       src2 = src1-2*stride;    // == src+2*stride-1;

  int H = src0[1] - src0[-1];

  int V = src1[0] - src2[ 0];

  for(k=2; k<=4; ++k) {

    src1 += stride; src2 -= stride;

    H += k*(src0[k] - src0[-k]);

    V += k*(src1[0] - src2[ 0]);

  }

  H = ( 17*H+16 ) >> 5;

  V = ( 17*V+16 ) >> 5;

  a = 16*(src1[0] + src2[8]+1) - 3*(V+H);

  for(j=8; j>0; --j) {

    int b = a;

    a += V;

    src[0] = CLIP((b    ) >> 5);

    src[1] = CLIP((b+  H) >> 5);

    src[2] = CLIP((b+2*H) >> 5);

    src[3] = CLIP((b+3*H) >> 5);

    src[4] = CLIP((b+4*H) >> 5);

    src[5] = CLIP((b+5*H) >> 5);

    src[6] = CLIP((b+6*H) >> 5);

    src[7] = CLIP((b+7*H) >> 5);

    src += stride;

  }

}

static void FUNCC(pred8x16_plane)(uint8_t *_src, ptrdiff_t _stride)

{

  int j, k;

  int a;

  INIT_CLIP

  pixel *src = (pixel*)_src;

  int stride = _stride>>(sizeof(pixel)-1);

  const pixel * const src0 = src +3-stride;

  const pixel *       src1 = src +8*stride-1;

  const pixel *       src2 = src1-2*stride;    // == src+6*stride-1;

  int H = src0[1] - src0[-1];

  int V = src1[0] - src2[ 0];

  for (k = 2; k <= 4; ++k) {

      src1 += stride; src2 -= stride;

      H += k*(src0[k] - src0[-k]);

      V += k*(src1[0] - src2[ 0]);

  }

  for (; k <= 8; ++k) {

      src1 += stride; src2 -= stride;

      V += k*(src1[0] - src2[0]);

  }

  H = (17*H+16) >> 5;

  V = (5*V+32) >> 6;

  a = 16*(src1[0] + src2[8] + 1) - 7*V - 3*H;

  for(j=16; j>0; --j) {

    int b = a;

    a += V;

    src[0] = CLIP((b    ) >> 5);

    src[1] = CLIP((b+  H) >> 5);

    src[2] = CLIP((b+2*H) >> 5);

    src[3] = CLIP((b+3*H) >> 5);

    src[4] = CLIP((b+4*H) >> 5);

    src[5] = CLIP((b+5*H) >> 5);

    src[6] = CLIP((b+6*H) >> 5);

    src[7] = CLIP((b+7*H) >> 5);

    src += stride;

  }

}

#define SRC(x,y) src[(x)+(y)*stride]

#define PL(y) \

    const int l##y = (SRC(-1,y-1) + 2*SRC(-1,y) + SRC(-1,y+1) + 2) >> 2;

#define PREDICT_8x8_LOAD_LEFT \

    const int l0 = ((has_topleft ? SRC(-1,-1) : SRC(-1,0)) \

                     + 2*SRC(-1,0) + SRC(-1,1) + 2) >> 2; \

    PL(1) PL(2) PL(3) PL(4) PL(5) PL(6) \

    const int l7 av_unused = (SRC(-1,6) + 3*SRC(-1,7) + 2) >> 2

#define PT(x) \

    const int t##x = (SRC(x-1,-1) + 2*SRC(x,-1) + SRC(x+1,-1) + 2) >> 2;

#define PREDICT_8x8_LOAD_TOP \

    const int t0 = ((has_topleft ? SRC(-1,-1) : SRC(0,-1)) \

                     + 2*SRC(0,-1) + SRC(1,-1) + 2) >> 2; \

    PT(1) PT(2) PT(3) PT(4) PT(5) PT(6) \

    const int t7 av_unused = ((has_topright ? SRC(8,-1) : SRC(7,-1)) \

                     + 2*SRC(7,-1) + SRC(6,-1) + 2) >> 2

#define PTR(x) \

    t##x = (SRC(x-1,-1) + 2*SRC(x,-1) + SRC(x+1,-1) + 2) >> 2;

#define PREDICT_8x8_LOAD_TOPRIGHT \

    int t8, t9, t10, t11, t12, t13, t14, t15; \

    if(has_topright) { \

        PTR(8) PTR(9) PTR(10) PTR(11) PTR(12) PTR(13) PTR(14) \

        t15 = (SRC(14,-1) + 3*SRC(15,-1) + 2) >> 2; \

    } else t8=t9=t10=t11=t12=t13=t14=t15= SRC(7,-1);

#define PREDICT_8x8_LOAD_TOPLEFT \

    const int lt = (SRC(-1,0) + 2*SRC(-1,-1) + SRC(0,-1) + 2) >> 2

#define PREDICT_8x8_DC(v) \

    int y; \

    for( y = 0; y < 8; y++ ) { \

        AV_WN4PA(((pixel4*)src)+0, v); \

        AV_WN4PA(((pixel4*)src)+1, v); \

        src += stride; \

    }

static void FUNCC(pred8x8l_128_dc)(uint8_t *_src, int has_topleft,

                                   int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_DC(PIXEL_SPLAT_X4(1<<(BIT_DEPTH-1)));

}

static void FUNCC(pred8x8l_left_dc)(uint8_t *_src, int has_topleft,

                                    int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_LEFT;

    const pixel4 dc = PIXEL_SPLAT_X4((l0+l1+l2+l3+l4+l5+l6+l7+4) >> 3);

    PREDICT_8x8_DC(dc);

}

static void FUNCC(pred8x8l_top_dc)(uint8_t *_src, int has_topleft,

                                   int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    const pixel4 dc = PIXEL_SPLAT_X4((t0+t1+t2+t3+t4+t5+t6+t7+4) >> 3);

    PREDICT_8x8_DC(dc);

}

static void FUNCC(pred8x8l_dc)(uint8_t *_src, int has_topleft,

                               int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_LEFT;

    PREDICT_8x8_LOAD_TOP;

    const pixel4 dc = PIXEL_SPLAT_X4((l0+l1+l2+l3+l4+l5+l6+l7

                                     +t0+t1+t2+t3+t4+t5+t6+t7+8) >> 4);

    PREDICT_8x8_DC(dc);

}

static void FUNCC(pred8x8l_horizontal)(uint8_t *_src, int has_topleft,

                                       int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    pixel4 a;

    PREDICT_8x8_LOAD_LEFT;

#define ROW(y) a = PIXEL_SPLAT_X4(l##y); \

               AV_WN4PA(src+y*stride, a); \

               AV_WN4PA(src+y*stride+4, a);

    ROW(0); ROW(1); ROW(2); ROW(3); ROW(4); ROW(5); ROW(6); ROW(7);

#undef ROW

}

static void FUNCC(pred8x8l_vertical)(uint8_t *_src, int has_topleft,

                                     int has_topright, ptrdiff_t _stride)

{

    int y;

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    pixel4 a, b;

    PREDICT_8x8_LOAD_TOP;

    src[0] = t0;

    src[1] = t1;

    src[2] = t2;

    src[3] = t3;

    src[4] = t4;

    src[5] = t5;

    src[6] = t6;

    src[7] = t7;

    a = AV_RN4PA(((pixel4*)src)+0);

    b = AV_RN4PA(((pixel4*)src)+1);

    for( y = 1; y < 8; y++ ) {

        AV_WN4PA(((pixel4*)(src+y*stride))+0, a);

        AV_WN4PA(((pixel4*)(src+y*stride))+1, b);

    }

}

static void FUNCC(pred8x8l_down_left)(uint8_t *_src, int has_topleft,

                                      int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    PREDICT_8x8_LOAD_TOPRIGHT;

    SRC(0,0)= (t0 + 2*t1 + t2 + 2) >> 2;

    SRC(0,1)=SRC(1,0)= (t1 + 2*t2 + t3 + 2) >> 2;

    SRC(0,2)=SRC(1,1)=SRC(2,0)= (t2 + 2*t3 + t4 + 2) >> 2;

    SRC(0,3)=SRC(1,2)=SRC(2,1)=SRC(3,0)= (t3 + 2*t4 + t5 + 2) >> 2;

    SRC(0,4)=SRC(1,3)=SRC(2,2)=SRC(3,1)=SRC(4,0)= (t4 + 2*t5 + t6 + 2) >> 2;

    SRC(0,5)=SRC(1,4)=SRC(2,3)=SRC(3,2)=SRC(4,1)=SRC(5,0)= (t5 + 2*t6 + t7 + 2) >> 2;

    SRC(0,6)=SRC(1,5)=SRC(2,4)=SRC(3,3)=SRC(4,2)=SRC(5,1)=SRC(6,0)= (t6 + 2*t7 + t8 + 2) >> 2;

    SRC(0,7)=SRC(1,6)=SRC(2,5)=SRC(3,4)=SRC(4,3)=SRC(5,2)=SRC(6,1)=SRC(7,0)= (t7 + 2*t8 + t9 + 2) >> 2;

    SRC(1,7)=SRC(2,6)=SRC(3,5)=SRC(4,4)=SRC(5,3)=SRC(6,2)=SRC(7,1)= (t8 + 2*t9 + t10 + 2) >> 2;

    SRC(2,7)=SRC(3,6)=SRC(4,5)=SRC(5,4)=SRC(6,3)=SRC(7,2)= (t9 + 2*t10 + t11 + 2) >> 2;

    SRC(3,7)=SRC(4,6)=SRC(5,5)=SRC(6,4)=SRC(7,3)= (t10 + 2*t11 + t12 + 2) >> 2;

    SRC(4,7)=SRC(5,6)=SRC(6,5)=SRC(7,4)= (t11 + 2*t12 + t13 + 2) >> 2;

    SRC(5,7)=SRC(6,6)=SRC(7,5)= (t12 + 2*t13 + t14 + 2) >> 2;

    SRC(6,7)=SRC(7,6)= (t13 + 2*t14 + t15 + 2) >> 2;

    SRC(7,7)= (t14 + 3*t15 + 2) >> 2;

}

static void FUNCC(pred8x8l_down_right)(uint8_t *_src, int has_topleft,

                                       int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    PREDICT_8x8_LOAD_LEFT;

    PREDICT_8x8_LOAD_TOPLEFT;

    SRC(0,7)= (l7 + 2*l6 + l5 + 2) >> 2;

    SRC(0,6)=SRC(1,7)= (l6 + 2*l5 + l4 + 2) >> 2;

    SRC(0,5)=SRC(1,6)=SRC(2,7)= (l5 + 2*l4 + l3 + 2) >> 2;

    SRC(0,4)=SRC(1,5)=SRC(2,6)=SRC(3,7)= (l4 + 2*l3 + l2 + 2) >> 2;

    SRC(0,3)=SRC(1,4)=SRC(2,5)=SRC(3,6)=SRC(4,7)= (l3 + 2*l2 + l1 + 2) >> 2;

    SRC(0,2)=SRC(1,3)=SRC(2,4)=SRC(3,5)=SRC(4,6)=SRC(5,7)= (l2 + 2*l1 + l0 + 2) >> 2;

    SRC(0,1)=SRC(1,2)=SRC(2,3)=SRC(3,4)=SRC(4,5)=SRC(5,6)=SRC(6,7)= (l1 + 2*l0 + lt + 2) >> 2;

    SRC(0,0)=SRC(1,1)=SRC(2,2)=SRC(3,3)=SRC(4,4)=SRC(5,5)=SRC(6,6)=SRC(7,7)= (l0 + 2*lt + t0 + 2) >> 2;

    SRC(1,0)=SRC(2,1)=SRC(3,2)=SRC(4,3)=SRC(5,4)=SRC(6,5)=SRC(7,6)= (lt + 2*t0 + t1 + 2) >> 2;

    SRC(2,0)=SRC(3,1)=SRC(4,2)=SRC(5,3)=SRC(6,4)=SRC(7,5)= (t0 + 2*t1 + t2 + 2) >> 2;

    SRC(3,0)=SRC(4,1)=SRC(5,2)=SRC(6,3)=SRC(7,4)= (t1 + 2*t2 + t3 + 2) >> 2;

    SRC(4,0)=SRC(5,1)=SRC(6,2)=SRC(7,3)= (t2 + 2*t3 + t4 + 2) >> 2;

    SRC(5,0)=SRC(6,1)=SRC(7,2)= (t3 + 2*t4 + t5 + 2) >> 2;

    SRC(6,0)=SRC(7,1)= (t4 + 2*t5 + t6 + 2) >> 2;

    SRC(7,0)= (t5 + 2*t6 + t7 + 2) >> 2;

}

static void FUNCC(pred8x8l_vertical_right)(uint8_t *_src, int has_topleft,

                                           int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    PREDICT_8x8_LOAD_LEFT;

    PREDICT_8x8_LOAD_TOPLEFT;

    SRC(0,6)= (l5 + 2*l4 + l3 + 2) >> 2;

    SRC(0,7)= (l6 + 2*l5 + l4 + 2) >> 2;

    SRC(0,4)=SRC(1,6)= (l3 + 2*l2 + l1 + 2) >> 2;

    SRC(0,5)=SRC(1,7)= (l4 + 2*l3 + l2 + 2) >> 2;

    SRC(0,2)=SRC(1,4)=SRC(2,6)= (l1 + 2*l0 + lt + 2) >> 2;

    SRC(0,3)=SRC(1,5)=SRC(2,7)= (l2 + 2*l1 + l0 + 2) >> 2;

    SRC(0,1)=SRC(1,3)=SRC(2,5)=SRC(3,7)= (l0 + 2*lt + t0 + 2) >> 2;

    SRC(0,0)=SRC(1,2)=SRC(2,4)=SRC(3,6)= (lt + t0 + 1) >> 1;

    SRC(1,1)=SRC(2,3)=SRC(3,5)=SRC(4,7)= (lt + 2*t0 + t1 + 2) >> 2;

    SRC(1,0)=SRC(2,2)=SRC(3,4)=SRC(4,6)= (t0 + t1 + 1) >> 1;

    SRC(2,1)=SRC(3,3)=SRC(4,5)=SRC(5,7)= (t0 + 2*t1 + t2 + 2) >> 2;

    SRC(2,0)=SRC(3,2)=SRC(4,4)=SRC(5,6)= (t1 + t2 + 1) >> 1;

    SRC(3,1)=SRC(4,3)=SRC(5,5)=SRC(6,7)= (t1 + 2*t2 + t3 + 2) >> 2;

    SRC(3,0)=SRC(4,2)=SRC(5,4)=SRC(6,6)= (t2 + t3 + 1) >> 1;

    SRC(4,1)=SRC(5,3)=SRC(6,5)=SRC(7,7)= (t2 + 2*t3 + t4 + 2) >> 2;

    SRC(4,0)=SRC(5,2)=SRC(6,4)=SRC(7,6)= (t3 + t4 + 1) >> 1;

    SRC(5,1)=SRC(6,3)=SRC(7,5)= (t3 + 2*t4 + t5 + 2) >> 2;

    SRC(5,0)=SRC(6,2)=SRC(7,4)= (t4 + t5 + 1) >> 1;

    SRC(6,1)=SRC(7,3)= (t4 + 2*t5 + t6 + 2) >> 2;

    SRC(6,0)=SRC(7,2)= (t5 + t6 + 1) >> 1;

    SRC(7,1)= (t5 + 2*t6 + t7 + 2) >> 2;

    SRC(7,0)= (t6 + t7 + 1) >> 1;

}

static void FUNCC(pred8x8l_horizontal_down)(uint8_t *_src, int has_topleft,

                                            int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    PREDICT_8x8_LOAD_LEFT;

    PREDICT_8x8_LOAD_TOPLEFT;

    SRC(0,7)= (l6 + l7 + 1) >> 1;

    SRC(1,7)= (l5 + 2*l6 + l7 + 2) >> 2;

    SRC(0,6)=SRC(2,7)= (l5 + l6 + 1) >> 1;

    SRC(1,6)=SRC(3,7)= (l4 + 2*l5 + l6 + 2) >> 2;

    SRC(0,5)=SRC(2,6)=SRC(4,7)= (l4 + l5 + 1) >> 1;

    SRC(1,5)=SRC(3,6)=SRC(5,7)= (l3 + 2*l4 + l5 + 2) >> 2;

    SRC(0,4)=SRC(2,5)=SRC(4,6)=SRC(6,7)= (l3 + l4 + 1) >> 1;

    SRC(1,4)=SRC(3,5)=SRC(5,6)=SRC(7,7)= (l2 + 2*l3 + l4 + 2) >> 2;

    SRC(0,3)=SRC(2,4)=SRC(4,5)=SRC(6,6)= (l2 + l3 + 1) >> 1;

    SRC(1,3)=SRC(3,4)=SRC(5,5)=SRC(7,6)= (l1 + 2*l2 + l3 + 2) >> 2;

    SRC(0,2)=SRC(2,3)=SRC(4,4)=SRC(6,5)= (l1 + l2 + 1) >> 1;

    SRC(1,2)=SRC(3,3)=SRC(5,4)=SRC(7,5)= (l0 + 2*l1 + l2 + 2) >> 2;

    SRC(0,1)=SRC(2,2)=SRC(4,3)=SRC(6,4)= (l0 + l1 + 1) >> 1;

    SRC(1,1)=SRC(3,2)=SRC(5,3)=SRC(7,4)= (lt + 2*l0 + l1 + 2) >> 2;

    SRC(0,0)=SRC(2,1)=SRC(4,2)=SRC(6,3)= (lt + l0 + 1) >> 1;

    SRC(1,0)=SRC(3,1)=SRC(5,2)=SRC(7,3)= (l0 + 2*lt + t0 + 2) >> 2;

    SRC(2,0)=SRC(4,1)=SRC(6,2)= (t1 + 2*t0 + lt + 2) >> 2;

    SRC(3,0)=SRC(5,1)=SRC(7,2)= (t2 + 2*t1 + t0 + 2) >> 2;

    SRC(4,0)=SRC(6,1)= (t3 + 2*t2 + t1 + 2) >> 2;

    SRC(5,0)=SRC(7,1)= (t4 + 2*t3 + t2 + 2) >> 2;

    SRC(6,0)= (t5 + 2*t4 + t3 + 2) >> 2;

    SRC(7,0)= (t6 + 2*t5 + t4 + 2) >> 2;

}

static void FUNCC(pred8x8l_vertical_left)(uint8_t *_src, int has_topleft,

                                          int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_TOP;

    PREDICT_8x8_LOAD_TOPRIGHT;

    SRC(0,0)= (t0 + t1 + 1) >> 1;

    SRC(0,1)= (t0 + 2*t1 + t2 + 2) >> 2;

    SRC(0,2)=SRC(1,0)= (t1 + t2 + 1) >> 1;

    SRC(0,3)=SRC(1,1)= (t1 + 2*t2 + t3 + 2) >> 2;

    SRC(0,4)=SRC(1,2)=SRC(2,0)= (t2 + t3 + 1) >> 1;

    SRC(0,5)=SRC(1,3)=SRC(2,1)= (t2 + 2*t3 + t4 + 2) >> 2;

    SRC(0,6)=SRC(1,4)=SRC(2,2)=SRC(3,0)= (t3 + t4 + 1) >> 1;

    SRC(0,7)=SRC(1,5)=SRC(2,3)=SRC(3,1)= (t3 + 2*t4 + t5 + 2) >> 2;

    SRC(1,6)=SRC(2,4)=SRC(3,2)=SRC(4,0)= (t4 + t5 + 1) >> 1;

    SRC(1,7)=SRC(2,5)=SRC(3,3)=SRC(4,1)= (t4 + 2*t5 + t6 + 2) >> 2;

    SRC(2,6)=SRC(3,4)=SRC(4,2)=SRC(5,0)= (t5 + t6 + 1) >> 1;

    SRC(2,7)=SRC(3,5)=SRC(4,3)=SRC(5,1)= (t5 + 2*t6 + t7 + 2) >> 2;

    SRC(3,6)=SRC(4,4)=SRC(5,2)=SRC(6,0)= (t6 + t7 + 1) >> 1;

    SRC(3,7)=SRC(4,5)=SRC(5,3)=SRC(6,1)= (t6 + 2*t7 + t8 + 2) >> 2;

    SRC(4,6)=SRC(5,4)=SRC(6,2)=SRC(7,0)= (t7 + t8 + 1) >> 1;

    SRC(4,7)=SRC(5,5)=SRC(6,3)=SRC(7,1)= (t7 + 2*t8 + t9 + 2) >> 2;

    SRC(5,6)=SRC(6,4)=SRC(7,2)= (t8 + t9 + 1) >> 1;

    SRC(5,7)=SRC(6,5)=SRC(7,3)= (t8 + 2*t9 + t10 + 2) >> 2;

    SRC(6,6)=SRC(7,4)= (t9 + t10 + 1) >> 1;

    SRC(6,7)=SRC(7,5)= (t9 + 2*t10 + t11 + 2) >> 2;

    SRC(7,6)= (t10 + t11 + 1) >> 1;

    SRC(7,7)= (t10 + 2*t11 + t12 + 2) >> 2;

}

static void FUNCC(pred8x8l_horizontal_up)(uint8_t *_src, int has_topleft,

                                          int has_topright, ptrdiff_t _stride)

{

    pixel *src = (pixel*)_src;

    int stride = _stride>>(sizeof(pixel)-1);

    PREDICT_8x8_LOAD_LEFT;

    SRC(0,0)= (l0 + l1 + 1) >> 1;

    SRC(1,0)= (l0 + 2*l1 + l2 + 2) >> 2;

    SRC(0,1)=SRC(2,0)= (l1 + l2 + 1) >> 1;

    SRC(1,1)=SRC(3,0)= (l1 + 2*l2 + l3 + 2) >> 2;

    SRC(0,2)=SRC(2,1)=SRC(4,0)= (l2 + l3 + 1) >> 1;

    SRC(1,2)=SRC(3,1)=SRC(5,0)= (l2 + 2*l3 + l4 + 2) >> 2;

    SRC(0,3)=SRC(2,2)=SRC(4,1)=SRC(6,0)= (l3 + l4 + 1) >> 1;

    SRC(1,3)=SRC(3,2)=SRC(5,1)=SRC(7,0)= (l3 + 2*l4 + l5 + 2) >> 2;

    SRC(0,4)=SRC(2,3)=SRC(4,2)=SRC(6,1)= (l4 + l5 + 1) >> 1;

    SRC(1,4)=SRC(3,3)=SRC(5,2)=SRC(7,1)= (l4 + 2*l5 + l6 + 2) >> 2;

    SRC(0,5)=SRC(2,4)=SRC(4,3)=SRC(6,2)= (l5 + l6 + 1) >> 1;

    SRC(1,5)=SRC(3,4)=SRC(5,3)=SRC(7,2)= (l5 + 2*l6 + l7 + 2) >> 2;

    SRC(0,6)=SRC(2,5)=SRC(4,4)=SRC(6,3)= (l6 + l7 + 1) >> 1;

    SRC(1,6)=SRC(3,5)=SRC(5,4)=SRC(7,3)= (l6 + 3*l7 + 2) >> 2;

    SRC(0,7)=SRC(1,7)=SRC(2,6)=SRC(2,7)=SRC(3,6)=

    SRC(3,7)=SRC(4,5)=SRC(4,6)=SRC(4,7)=SRC(5,5)=

    SRC(5,6)=SRC(5,7)=SRC(6,4)=SRC(6,5)=SRC(6,6)=

    SRC(6,7)=SRC(7,4)=SRC(7,5)=SRC(7,6)=SRC(7,7)= l7;

}

#undef PREDICT_8x8_LOAD_LEFT

#undef PREDICT_8x8_LOAD_TOP

#undef PREDICT_8x8_LOAD_TOPLEFT

#undef PREDICT_8x8_LOAD_TOPRIGHT

#undef PREDICT_8x8_DC