/*
  * RV40 decoder motion compensation functions
  * Copyright (c) 2008 Konstantin Shishkov
  *
  * 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

  * RV40 decoder motion compensation functions
  */
 
 #include "avcodec.h"
 #include "dsputil.h"

 #include "rv34dsp.h"

 
 #define RV40_LOWPASS(OPNAME, OP) \
 static av_unused void OPNAME ## rv40_qpel8_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
                                                      const int h, const int C1, const int C2, const int SHIFT){\
     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
     int i;\

     for(i = 0; i < h; i++)\

     {\
         OP(dst[0], (src[-2] + src[ 3] - 5*(src[-1]+src[2]) + src[0]*C1 + src[1]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[1], (src[-1] + src[ 4] - 5*(src[ 0]+src[3]) + src[1]*C1 + src[2]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[2], (src[ 0] + src[ 5] - 5*(src[ 1]+src[4]) + src[2]*C1 + src[3]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[3], (src[ 1] + src[ 6] - 5*(src[ 2]+src[5]) + src[3]*C1 + src[4]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[4], (src[ 2] + src[ 7] - 5*(src[ 3]+src[6]) + src[4]*C1 + src[5]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[5], (src[ 3] + src[ 8] - 5*(src[ 4]+src[7]) + src[5]*C1 + src[6]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[6], (src[ 4] + src[ 9] - 5*(src[ 5]+src[8]) + src[6]*C1 + src[7]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[7], (src[ 5] + src[10] - 5*(src[ 6]+src[9]) + src[7]*C1 + src[8]*C2 + (1<<(SHIFT-1))) >> SHIFT);\

         dst += dstStride;\
         src += srcStride;\

     }\
 }\
 \
 static void OPNAME ## rv40_qpel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
                                            const int w, const int C1, const int C2, const int SHIFT){\
     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
     int i;\

     for(i = 0; i < w; i++)\

     {\

         const int srcB  = src[-2*srcStride];\
         const int srcA  = src[-1*srcStride];\
         const int src0  = src[0 *srcStride];\
         const int src1  = src[1 *srcStride];\
         const int src2  = src[2 *srcStride];\
         const int src3  = src[3 *srcStride];\
         const int src4  = src[4 *srcStride];\
         const int src5  = src[5 *srcStride];\
         const int src6  = src[6 *srcStride];\
         const int src7  = src[7 *srcStride];\
         const int src8  = src[8 *srcStride];\
         const int src9  = src[9 *srcStride];\
         const int src10 = src[10*srcStride];\

         OP(dst[0*dstStride], (srcB + src3  - 5*(srcA+src2) + src0*C1 + src1*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[1*dstStride], (srcA + src4  - 5*(src0+src3) + src1*C1 + src2*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[2*dstStride], (src0 + src5  - 5*(src1+src4) + src2*C1 + src3*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[3*dstStride], (src1 + src6  - 5*(src2+src5) + src3*C1 + src4*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[4*dstStride], (src2 + src7  - 5*(src3+src6) + src4*C1 + src5*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[5*dstStride], (src3 + src8  - 5*(src4+src7) + src5*C1 + src6*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[6*dstStride], (src4 + src9  - 5*(src5+src8) + src6*C1 + src7*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         OP(dst[7*dstStride], (src5 + src10 - 5*(src6+src9) + src7*C1 + src8*C2 + (1<<(SHIFT-1))) >> SHIFT);\
         dst++;\
         src++;\
     }\
 }\
 \
 static void OPNAME ## rv40_qpel16_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
                                             const int w, const int C1, const int C2, const int SHIFT){\
     OPNAME ## rv40_qpel8_v_lowpass(dst  , src  , dstStride, srcStride, 8, C1, C2, SHIFT);\
     OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
     src += 8*srcStride;\
     dst += 8*dstStride;\
     OPNAME ## rv40_qpel8_v_lowpass(dst  , src  , dstStride, srcStride, w-8, C1, C2, SHIFT);\
     OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, w-8, C1, C2, SHIFT);\
 }\
 \
 static void OPNAME ## rv40_qpel16_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
                                             const int h, const int C1, const int C2, const int SHIFT){\
     OPNAME ## rv40_qpel8_h_lowpass(dst  , src  , dstStride, srcStride, 8, C1, C2, SHIFT);\
     OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
     src += 8*srcStride;\
     dst += 8*dstStride;\
     OPNAME ## rv40_qpel8_h_lowpass(dst  , src  , dstStride, srcStride, h-8, C1, C2, SHIFT);\
     OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, h-8, C1, C2, SHIFT);\
 }\
 \
 
 #define RV40_MC(OPNAME, SIZE) \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc10_c(uint8_t *dst, uint8_t *src, int stride){\
     OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc30_c(uint8_t *dst, uint8_t *src, int stride){\
     OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc01_c(uint8_t *dst, uint8_t *src, int stride){\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc11_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc21_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc31_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc12_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc22_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc32_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc03_c(uint8_t *dst, uint8_t *src, int stride){\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc13_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
 }\
 \
 static void OPNAME ## rv40_qpel ## SIZE ## _mc23_c(uint8_t *dst, uint8_t *src, int stride){\
     uint8_t full[SIZE*(SIZE+5)];\

     uint8_t * const full_mid = full + SIZE*2;\

     put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
     OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
 }\
 \
 
 #define op_avg(a, b)  a = (((a)+cm[b]+1)>>1)
 #define op_put(a, b)  a = cm[b]
 
 RV40_LOWPASS(put_       , op_put)
 RV40_LOWPASS(avg_       , op_avg)
 
 #undef op_avg
 #undef op_put
 
 RV40_MC(put_, 8)
 RV40_MC(put_, 16)
 RV40_MC(avg_, 8)
 RV40_MC(avg_, 16)
 
 static const int rv40_bias[4][4] = {
     {  0, 16, 32, 16 },
     { 32, 28, 32, 28 },
     {  0, 32, 16, 32 },
     { 32, 28, 32, 28 }
 };
 
 #define RV40_CHROMA_MC(OPNAME, OP)\
 static void OPNAME ## rv40_chroma_mc4_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\

     const int A = (8-x) * (8-y);\
     const int B = (  x) * (8-y);\
     const int C = (8-x) * (  y);\
     const int D = (  x) * (  y);\

     int i;\
     int bias = rv40_bias[y>>1][x>>1];\
     \
     assert(x<8 && y<8 && x>=0 && y>=0);\
 \
     if(D){\

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

             OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
             OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
             OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
             OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\

             dst += stride;\
             src += stride;\

         }\
     }else{\

         const int E = B + C;\
         const int step = C ? stride : 1;\
         for(i = 0; i < h; i++){\

             OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
             OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
             OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
             OP(dst[3], (A*src[3] + E*src[step+3] + bias));\

             dst += stride;\
             src += stride;\

         }\
     }\
 }\
 \
 static void OPNAME ## rv40_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\

     const int A = (8-x) * (8-y);\
     const int B = (  x) * (8-y);\
     const int C = (8-x) * (  y);\
     const int D = (  x) * (  y);\

     int i;\
     int bias = rv40_bias[y>>1][x>>1];\
     \
     assert(x<8 && y<8 && x>=0 && y>=0);\
 \
     if(D){\

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

             OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
             OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
             OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
             OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
             OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + bias));\
             OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + bias));\
             OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + bias));\
             OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + bias));\

             dst += stride;\
             src += stride;\

         }\
     }else{\

         const int E = B + C;\
         const int step = C ? stride : 1;\
         for(i = 0; i < h; i++){\

             OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
             OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
             OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
             OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
             OP(dst[4], (A*src[4] + E*src[step+4] + bias));\
             OP(dst[5], (A*src[5] + E*src[step+5] + bias));\
             OP(dst[6], (A*src[6] + E*src[step+6] + bias));\
             OP(dst[7], (A*src[7] + E*src[step+7] + bias));\

             dst += stride;\
             src += stride;\

         }\
     }\
 }
 
 #define op_avg(a, b) a = (((a)+((b)>>6)+1)>>1)
 #define op_put(a, b) a = ((b)>>6)
 
 RV40_CHROMA_MC(put_, op_put)
 RV40_CHROMA_MC(avg_, op_avg)
 

 #define RV40_WEIGHT_FUNC(size) \
 static void rv40_weight_func_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, int stride)\
 {\
     int i, j;\
 \
     for (j = 0; j < size; j++) {\
         for (i = 0; i < size; i++)\
             dst[i] = (((w2 * src1[i]) >> 9) + ((w1 * src2[i]) >> 9) + 0x10) >> 5;\
         src1 += stride;\
         src2 += stride;\
         dst  += stride;\
     }\
 }
 
 RV40_WEIGHT_FUNC(16)
 RV40_WEIGHT_FUNC(8)
 

 /**
  * dither values for deblocking filter - left/top values
  */
 static const uint8_t rv40_dither_l[16] = {
     0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
     0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
 };
 
 /**
  * dither values for deblocking filter - right/bottom values
  */
 static const uint8_t rv40_dither_r[16] = {
     0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
     0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
 };
 
 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
 /**
  * weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1
  */
 static inline void rv40_weak_loop_filter(uint8_t *src, const int step,
                                          const int filter_p1, const int filter_q1,
                                          const int alpha, const int beta,
                                          const int lim_p0q0,
                                          const int lim_q1, const int lim_p1,
                                          const int diff_p1p0, const int diff_q1q0,
                                          const int diff_p1p2, const int diff_q1q2)
 {
     uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
     int t, u, diff;
 
     t = src[0*step] - src[-1*step];
     if(!t)
         return;
     u = (alpha * FFABS(t)) >> 7;
     if(u > 3 - (filter_p1 && filter_q1))
         return;
 
     t <<= 2;
     if(filter_p1 && filter_q1)
         t += src[-2*step] - src[1*step];
     diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
     src[-1*step] = cm[src[-1*step] + diff];
     src[ 0*step] = cm[src[ 0*step] - diff];
     if(FFABS(diff_p1p2) <= beta && filter_p1){
         t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
         src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
     }
     if(FFABS(diff_q1q2) <= beta && filter_q1){
         t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
         src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
     }
 }
 
 static av_always_inline void rv40_adaptive_loop_filter(uint8_t *src, const int step,
                                              const int stride, const int dmode,
                                              const int lim_q1, const int lim_p1,
                                              const int alpha,
                                              const int beta, const int beta2,
                                              const int chroma, const int edge)
 {
     int diff_p1p0[4], diff_q1q0[4], diff_p1p2[4], diff_q1q2[4];
     int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
     uint8_t *ptr;
     int flag_strong0 = 1, flag_strong1 = 1;
     int filter_p1, filter_q1;
     int i;
     int lims;
 
     for(i = 0, ptr = src; i < 4; i++, ptr += stride){
         diff_p1p0[i] = ptr[-2*step] - ptr[-1*step];
         diff_q1q0[i] = ptr[ 1*step] - ptr[ 0*step];
         sum_p1p0 += diff_p1p0[i];
         sum_q1q0 += diff_q1q0[i];
     }
     filter_p1 = FFABS(sum_p1p0) < (beta<<2);
     filter_q1 = FFABS(sum_q1q0) < (beta<<2);
     if(!filter_p1 && !filter_q1)
         return;
 
     for(i = 0, ptr = src; i < 4; i++, ptr += stride){
         diff_p1p2[i] = ptr[-2*step] - ptr[-3*step];
         diff_q1q2[i] = ptr[ 1*step] - ptr[ 2*step];
         sum_p1p2 += diff_p1p2[i];
         sum_q1q2 += diff_q1q2[i];
     }
 
     if(edge){
         flag_strong0 = filter_p1 && (FFABS(sum_p1p2) < beta2);
         flag_strong1 = filter_q1 && (FFABS(sum_q1q2) < beta2);
     }else{
         flag_strong0 = flag_strong1 = 0;
     }
 
     lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1;
     if(flag_strong0 && flag_strong1){ /* strong filtering */
         for(i = 0; i < 4; i++, src += stride){
             int sflag, p0, q0, p1, q1;
             int t = src[0*step] - src[-1*step];
 
             if(!t) continue;
             sflag = (alpha * FFABS(t)) >> 7;
             if(sflag > 1) continue;
 
             p0 = (25*src[-3*step] + 26*src[-2*step]
                 + 26*src[-1*step]
                 + 26*src[ 0*step] + 25*src[ 1*step] + rv40_dither_l[dmode + i]) >> 7;
             q0 = (25*src[-2*step] + 26*src[-1*step]
                 + 26*src[ 0*step]
                 + 26*src[ 1*step] + 25*src[ 2*step] + rv40_dither_r[dmode + i]) >> 7;
             if(sflag){
                 p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
                 q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
             }
             p1 = (25*src[-4*step] + 26*src[-3*step]
                 + 26*src[-2*step]
                 + 26*p0           + 25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
             q1 = (25*src[-1*step] + 26*q0
                 + 26*src[ 1*step]
                 + 26*src[ 2*step] + 25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
             if(sflag){
                 p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
                 q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
             }
             src[-2*step] = p1;
             src[-1*step] = p0;
             src[ 0*step] = q0;
             src[ 1*step] = q1;
             if(!chroma){
                 src[-3*step] = (25*src[-1*step] + 26*src[-2*step] + 51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
                 src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] + 51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
             }
         }
     }else if(filter_p1 && filter_q1){
         for(i = 0; i < 4; i++, src += stride)
             rv40_weak_loop_filter(src, step, 1, 1, alpha, beta, lims, lim_q1, lim_p1,
                                   diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
     }else{
         for(i = 0; i < 4; i++, src += stride)
             rv40_weak_loop_filter(src, step, filter_p1, filter_q1,
                                   alpha, beta, lims>>1, lim_q1>>1, lim_p1>>1,
                                   diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
     }
 }
 
 static void rv40_v_loop_filter(uint8_t *src, int stride, int dmode,
                                int lim_q1, int lim_p1,
                                int alpha, int beta, int beta2, int chroma, int edge){
     rv40_adaptive_loop_filter(src, 1, stride, dmode, lim_q1, lim_p1,
                               alpha, beta, beta2, chroma, edge);
 }
 static void rv40_h_loop_filter(uint8_t *src, int stride, int dmode,
                                int lim_q1, int lim_p1,
                                int alpha, int beta, int beta2, int chroma, int edge){
     rv40_adaptive_loop_filter(src, stride, 1, dmode, lim_q1, lim_p1,
                               alpha, beta, beta2, chroma, edge);
 }
 

 av_cold void ff_rv40dsp_init(RV34DSPContext *c, DSPContext* dsp) {

 
     ff_rv34dsp_init(c, dsp);
 

     c->put_pixels_tab[0][ 0] = dsp->put_h264_qpel_pixels_tab[0][0];
     c->put_pixels_tab[0][ 1] = put_rv40_qpel16_mc10_c;

     c->put_pixels_tab[0][ 2] = dsp->put_h264_qpel_pixels_tab[0][2];

     c->put_pixels_tab[0][ 3] = put_rv40_qpel16_mc30_c;
     c->put_pixels_tab[0][ 4] = put_rv40_qpel16_mc01_c;
     c->put_pixels_tab[0][ 5] = put_rv40_qpel16_mc11_c;
     c->put_pixels_tab[0][ 6] = put_rv40_qpel16_mc21_c;
     c->put_pixels_tab[0][ 7] = put_rv40_qpel16_mc31_c;

     c->put_pixels_tab[0][ 8] = dsp->put_h264_qpel_pixels_tab[0][8];

     c->put_pixels_tab[0][ 9] = put_rv40_qpel16_mc12_c;
     c->put_pixels_tab[0][10] = put_rv40_qpel16_mc22_c;
     c->put_pixels_tab[0][11] = put_rv40_qpel16_mc32_c;
     c->put_pixels_tab[0][12] = put_rv40_qpel16_mc03_c;
     c->put_pixels_tab[0][13] = put_rv40_qpel16_mc13_c;
     c->put_pixels_tab[0][14] = put_rv40_qpel16_mc23_c;
     c->put_pixels_tab[0][15] = ff_put_rv40_qpel16_mc33_c;
     c->avg_pixels_tab[0][ 0] = dsp->avg_h264_qpel_pixels_tab[0][0];
     c->avg_pixels_tab[0][ 1] = avg_rv40_qpel16_mc10_c;

     c->avg_pixels_tab[0][ 2] = dsp->avg_h264_qpel_pixels_tab[0][2];

     c->avg_pixels_tab[0][ 3] = avg_rv40_qpel16_mc30_c;
     c->avg_pixels_tab[0][ 4] = avg_rv40_qpel16_mc01_c;
     c->avg_pixels_tab[0][ 5] = avg_rv40_qpel16_mc11_c;
     c->avg_pixels_tab[0][ 6] = avg_rv40_qpel16_mc21_c;
     c->avg_pixels_tab[0][ 7] = avg_rv40_qpel16_mc31_c;

     c->avg_pixels_tab[0][ 8] = dsp->avg_h264_qpel_pixels_tab[0][8];

     c->avg_pixels_tab[0][ 9] = avg_rv40_qpel16_mc12_c;
     c->avg_pixels_tab[0][10] = avg_rv40_qpel16_mc22_c;
     c->avg_pixels_tab[0][11] = avg_rv40_qpel16_mc32_c;
     c->avg_pixels_tab[0][12] = avg_rv40_qpel16_mc03_c;
     c->avg_pixels_tab[0][13] = avg_rv40_qpel16_mc13_c;
     c->avg_pixels_tab[0][14] = avg_rv40_qpel16_mc23_c;
     c->avg_pixels_tab[0][15] = ff_avg_rv40_qpel16_mc33_c;
     c->put_pixels_tab[1][ 0] = dsp->put_h264_qpel_pixels_tab[1][0];
     c->put_pixels_tab[1][ 1] = put_rv40_qpel8_mc10_c;

     c->put_pixels_tab[1][ 2] = dsp->put_h264_qpel_pixels_tab[1][2];

     c->put_pixels_tab[1][ 3] = put_rv40_qpel8_mc30_c;
     c->put_pixels_tab[1][ 4] = put_rv40_qpel8_mc01_c;
     c->put_pixels_tab[1][ 5] = put_rv40_qpel8_mc11_c;
     c->put_pixels_tab[1][ 6] = put_rv40_qpel8_mc21_c;
     c->put_pixels_tab[1][ 7] = put_rv40_qpel8_mc31_c;

     c->put_pixels_tab[1][ 8] = dsp->put_h264_qpel_pixels_tab[1][8];

     c->put_pixels_tab[1][ 9] = put_rv40_qpel8_mc12_c;
     c->put_pixels_tab[1][10] = put_rv40_qpel8_mc22_c;
     c->put_pixels_tab[1][11] = put_rv40_qpel8_mc32_c;
     c->put_pixels_tab[1][12] = put_rv40_qpel8_mc03_c;
     c->put_pixels_tab[1][13] = put_rv40_qpel8_mc13_c;
     c->put_pixels_tab[1][14] = put_rv40_qpel8_mc23_c;
     c->put_pixels_tab[1][15] = ff_put_rv40_qpel8_mc33_c;
     c->avg_pixels_tab[1][ 0] = dsp->avg_h264_qpel_pixels_tab[1][0];
     c->avg_pixels_tab[1][ 1] = avg_rv40_qpel8_mc10_c;

     c->avg_pixels_tab[1][ 2] = dsp->avg_h264_qpel_pixels_tab[1][2];

     c->avg_pixels_tab[1][ 3] = avg_rv40_qpel8_mc30_c;
     c->avg_pixels_tab[1][ 4] = avg_rv40_qpel8_mc01_c;
     c->avg_pixels_tab[1][ 5] = avg_rv40_qpel8_mc11_c;
     c->avg_pixels_tab[1][ 6] = avg_rv40_qpel8_mc21_c;
     c->avg_pixels_tab[1][ 7] = avg_rv40_qpel8_mc31_c;

     c->avg_pixels_tab[1][ 8] = dsp->avg_h264_qpel_pixels_tab[1][8];

     c->avg_pixels_tab[1][ 9] = avg_rv40_qpel8_mc12_c;
     c->avg_pixels_tab[1][10] = avg_rv40_qpel8_mc22_c;
     c->avg_pixels_tab[1][11] = avg_rv40_qpel8_mc32_c;
     c->avg_pixels_tab[1][12] = avg_rv40_qpel8_mc03_c;
     c->avg_pixels_tab[1][13] = avg_rv40_qpel8_mc13_c;
     c->avg_pixels_tab[1][14] = avg_rv40_qpel8_mc23_c;
     c->avg_pixels_tab[1][15] = ff_avg_rv40_qpel8_mc33_c;

     c->put_chroma_pixels_tab[0] = put_rv40_chroma_mc8_c;
     c->put_chroma_pixels_tab[1] = put_rv40_chroma_mc4_c;
     c->avg_chroma_pixels_tab[0] = avg_rv40_chroma_mc8_c;
     c->avg_chroma_pixels_tab[1] = avg_rv40_chroma_mc4_c;
 

     c->rv40_weight_pixels_tab[0] = rv40_weight_func_16;
     c->rv40_weight_pixels_tab[1] = rv40_weight_func_8;

     c->rv40_h_loop_filter = rv40_h_loop_filter;
     c->rv40_v_loop_filter = rv40_v_loop_filter;
 

     if (HAVE_MMX)
         ff_rv40dsp_init_x86(c, dsp);

     if (HAVE_NEON)
         ff_rv40dsp_init_neon(c, dsp);

 }