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FFmpeg/libavcodec/h264pred_template.c

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  1. /*

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

  3.  * Copyright (c) 2003-2011 Michael Niedermayer <michaelni@gmx.at>

  4.  *

  5.  * This file is part of Libav.

  6.  *

  7.  * Libav is free software; you can redistribute it and/or

  8.  * modify it under the terms of the GNU Lesser General Public

  9.  * License as published by the Free Software Foundation; either

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

  11.  *

  12.  * Libav is distributed in the hope that it will be useful,

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  15.  * Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public

  18.  * License along with Libav; if not, write to the Free Software

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

  20.  */

  21. 

  22. /**

  23.  * @file

  24.  * H.264 / AVC / MPEG-4 part10 prediction functions.

  25.  * @author Michael Niedermayer <michaelni@gmx.at>

  26.  */

  27. 

  28. #include "libavutil/intreadwrite.h"

  29. 

  30. #include "mathops.h"

  31. 

  32. #include "bit_depth_template.c"

  33. 

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

  35.                                     ptrdiff_t _stride)

  36. {

  37.     pixel *src = (pixel*)_src;

  38.     int stride = _stride/sizeof(pixel);

  39.     const pixel4 a= AV_RN4PA(src-stride);

  40. 

  41.     AV_WN4PA(src+0*stride, a);

  42.     AV_WN4PA(src+1*stride, a);

  43.     AV_WN4PA(src+2*stride, a);

  44.     AV_WN4PA(src+3*stride, a);

  45. }

  46. 

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

  48.                                       ptrdiff_t _stride)

  49. {

  50.     pixel *src = (pixel*)_src;

  51.     int stride = _stride/sizeof(pixel);

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

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

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

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

  56. }

  57. 

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

  59.                               ptrdiff_t _stride)

  60. {

  61.     pixel *src = (pixel*)_src;

  62.     int stride = _stride/sizeof(pixel);

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

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

  65.     const pixel4 a = PIXEL_SPLAT_X4(dc);

  66. 

  67.     AV_WN4PA(src+0*stride, a);

  68.     AV_WN4PA(src+1*stride, a);

  69.     AV_WN4PA(src+2*stride, a);

  70.     AV_WN4PA(src+3*stride, a);

  71. }

  72. 

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

  74.                                    ptrdiff_t _stride)

  75. {

  76.     pixel *src = (pixel*)_src;

  77.     int stride = _stride/sizeof(pixel);

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

  79.     const pixel4 a = PIXEL_SPLAT_X4(dc);

  80. 

  81.     AV_WN4PA(src+0*stride, a);

  82.     AV_WN4PA(src+1*stride, a);

  83.     AV_WN4PA(src+2*stride, a);

  84.     AV_WN4PA(src+3*stride, a);

  85. }

  86. 

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

  88.                                   ptrdiff_t _stride)

  89. {

  90.     pixel *src = (pixel*)_src;

  91.     int stride = _stride/sizeof(pixel);

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

  93.     const pixel4 a = PIXEL_SPLAT_X4(dc);

  94. 

  95.     AV_WN4PA(src+0*stride, a);

  96.     AV_WN4PA(src+1*stride, a);

  97.     AV_WN4PA(src+2*stride, a);

  98.     AV_WN4PA(src+3*stride, a);

  99. }

  100. 

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

  102.                                   ptrdiff_t _stride)

  103. {

  104.     pixel *src = (pixel*)_src;

  105.     int stride = _stride/sizeof(pixel);

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

  107. 

  108.     AV_WN4PA(src+0*stride, a);

  109.     AV_WN4PA(src+1*stride, a);

  110.     AV_WN4PA(src+2*stride, a);

  111.     AV_WN4PA(src+3*stride, a);

  112. }

  113. 

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

  115.                                   ptrdiff_t _stride)

  116. {

  117.     pixel *src = (pixel*)_src;

  118.     int stride = _stride/sizeof(pixel);

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

  120. 

  121.     AV_WN4PA(src+0*stride, a);

  122.     AV_WN4PA(src+1*stride, a);

  123.     AV_WN4PA(src+2*stride, a);

  124.     AV_WN4PA(src+3*stride, a);

  125. }

  126. 

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

  128.                                   ptrdiff_t _stride)

  129. {

  130.     pixel *src = (pixel*)_src;

  131.     int stride = _stride/sizeof(pixel);

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

  133. 

  134.     AV_WN4PA(src+0*stride, a);

  135.     AV_WN4PA(src+1*stride, a);

  136.     AV_WN4PA(src+2*stride, a);

  137.     AV_WN4PA(src+3*stride, a);

  138. }

  139. 

  140. 

  141. #define LOAD_TOP_RIGHT_EDGE\

  142.     const unsigned av_unused t4 = topright[0];\

  143.     const unsigned av_unused t5 = topright[1];\

  144.     const unsigned av_unused t6 = topright[2];\

  145.     const unsigned av_unused t7 = topright[3];\

  146. 

  147. #define LOAD_DOWN_LEFT_EDGE\

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

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

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

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

  152. 

  153. #define LOAD_LEFT_EDGE\

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

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

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

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

  158. 

  159. #define LOAD_TOP_EDGE\

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

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

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

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

  164. 

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

  166.                                       ptrdiff_t _stride)

  167. {

  168.     pixel *src = (pixel*)_src;

  169.     int stride = _stride/sizeof(pixel);

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

  171.     LOAD_TOP_EDGE

  172.     LOAD_LEFT_EDGE

  173. 

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

  175.     src[0+2*stride]=

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

  177.     src[0+1*stride]=

  178.     src[1+2*stride]=

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

  180.     src[0+0*stride]=

  181.     src[1+1*stride]=

  182.     src[2+2*stride]=

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

  184.     src[1+0*stride]=

  185.     src[2+1*stride]=

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

  187.     src[2+0*stride]=

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

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

  190. }

  191. 

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

  193.                                      ptrdiff_t _stride)

  194. {

  195.     pixel *src = (pixel*)_src;

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

  197.     int stride = _stride/sizeof(pixel);

  198.     LOAD_TOP_EDGE

  199.     LOAD_TOP_RIGHT_EDGE

  200. //    LOAD_LEFT_EDGE

  201. 

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

  203.     src[1+0*stride]=

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

  205.     src[2+0*stride]=

  206.     src[1+1*stride]=

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

  208.     src[3+0*stride]=

  209.     src[2+1*stride]=

  210.     src[1+2*stride]=

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

  212.     src[3+1*stride]=

  213.     src[2+2*stride]=

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

  215.     src[3+2*stride]=

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

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

  218. }

  219. 

  220. static void FUNCC(pred4x4_vertical_right)(uint8_t *_src,

  221.                                           const uint8_t *topright,

  222.                                           ptrdiff_t _stride)

  223. {

  224.     pixel *src = (pixel*)_src;

  225.     int stride = _stride/sizeof(pixel);

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

  227.     LOAD_TOP_EDGE

  228.     LOAD_LEFT_EDGE

  229. 

  230.     src[0+0*stride]=

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

  232.     src[1+0*stride]=

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

  234.     src[2+0*stride]=

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

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

  237.     src[0+1*stride]=

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

  239.     src[1+1*stride]=

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

  241.     src[2+1*stride]=

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

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

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

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

  246. }

  247. 

  248. static void FUNCC(pred4x4_vertical_left)(uint8_t *_src,

  249.                                          const uint8_t *_topright,

  250.                                          ptrdiff_t _stride)

  251. {

  252.     pixel *src = (pixel*)_src;

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

  254.     int stride = _stride/sizeof(pixel);

  255.     LOAD_TOP_EDGE

  256.     LOAD_TOP_RIGHT_EDGE

  257. 

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

  259.     src[1+0*stride]=

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

  261.     src[2+0*stride]=

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

  263.     src[3+0*stride]=

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

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

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

  267.     src[1+1*stride]=

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

  269.     src[2+1*stride]=

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

  271.     src[3+1*stride]=

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

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

  274. }

  275. 

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

  277.                                          ptrdiff_t _stride)

  278. {

  279.     pixel *src = (pixel*)_src;

  280.     int stride = _stride/sizeof(pixel);

  281.     LOAD_LEFT_EDGE

  282. 

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

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

  285.     src[2+0*stride]=

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

  287.     src[3+0*stride]=

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

  289.     src[2+1*stride]=

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

  291.     src[3+1*stride]=

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

  293.     src[3+2*stride]=

  294.     src[1+3*stride]=

  295.     src[0+3*stride]=

  296.     src[2+2*stride]=

  297.     src[2+3*stride]=

  298.     src[3+3*stride]=l3;

  299. }

  300. 

  301. static void FUNCC(pred4x4_horizontal_down)(uint8_t *_src,

  302.                                            const uint8_t *topright,

  303.                                            ptrdiff_t _stride)

  304. {

  305.     pixel *src = (pixel*)_src;

  306.     int stride = _stride/sizeof(pixel);

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

  308.     LOAD_TOP_EDGE

  309.     LOAD_LEFT_EDGE

  310. 

  311.     src[0+0*stride]=

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

  313.     src[1+0*stride]=

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

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

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

  317.     src[0+1*stride]=

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

  319.     src[1+1*stride]=

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

  321.     src[0+2*stride]=

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

  323.     src[1+2*stride]=

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

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

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

  327. }

  328. 

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

  330. {

  331.     int i;

  332.     pixel *src = (pixel*)_src;

  333.     int stride = _stride/sizeof(pixel);

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

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

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

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

  338. 

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

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

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

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

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

  344.     }

  345. }

  346. 

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

  348. {

  349.     int i;

  350.     pixel *src = (pixel*)_src;

  351.     stride /= sizeof(pixel);

  352. 

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

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

  355. 

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

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

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

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

  360.     }

  361. }

  362. 

  363. #define PREDICT_16x16_DC(v)\

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

  365.         AV_WN4PA(src+ 0, v);\

  366.         AV_WN4PA(src+ 4, v);\

  367.         AV_WN4PA(src+ 8, v);\

  368.         AV_WN4PA(src+12, v);\

  369.         src += stride;\

  370.     }

  371. 

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

  373. {

  374.     int i, dc=0;

  375.     pixel *src = (pixel*)_src;

  376.     pixel4 dcsplat;

  377.     stride /= sizeof(pixel);

  378. 

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

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

  381.     }

  382. 

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

  384.         dc+= src[i-stride];

  385.     }

  386. 

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

  388.     PREDICT_16x16_DC(dcsplat);

  389. }

  390. 

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

  392. {

  393.     int i, dc=0;

  394.     pixel *src = (pixel*)_src;

  395.     pixel4 dcsplat;

  396.     stride /= sizeof(pixel);

  397. 

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

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

  400.     }

  401. 

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

  403.     PREDICT_16x16_DC(dcsplat);

  404. }

  405. 

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

  407. {

  408.     int i, dc=0;

  409.     pixel *src = (pixel*)_src;

  410.     pixel4 dcsplat;

  411.     stride /= sizeof(pixel);

  412. 

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

  414.         dc+= src[i-stride];

  415.     }

  416. 

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

  418.     PREDICT_16x16_DC(dcsplat);

  419. }

  420. 

  421. #define PRED16x16_X(n, v) \

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

  423. {\

  424.     int i;\

  425.     pixel *src = (pixel*)_src;\

  426.     stride /= sizeof(pixel);\

  427.     PREDICT_16x16_DC(PIXEL_SPLAT_X4(v));\

  428. }

  429. 

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

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

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

  433. 

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

  435.                                                  ptrdiff_t _stride,

  436.                                                  const int svq3,

  437.                                                  const int rv40)

  438. {

  439.   int i, j, k;

  440.   int a;

  441.   INIT_CLIP

  442.   pixel *src = (pixel*)_src;

  443.   int stride = _stride/sizeof(pixel);

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

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

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

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

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

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

  450.     src1 += stride; src2 -= stride;

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

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

  453.   }

  454.   if(svq3){

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

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

  457. 

  458.     /* required for 100% accuracy */

  459.     i = H; H = V; V = i;

  460.   }else if(rv40){

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

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

  463.   }else{

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

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

  466.   }

  467. 

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

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

  470.     int b = a;

  471.     a += V;

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

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

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

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

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

  477.       b += 4*H;

  478.     }

  479.     src += stride;

  480.   }

  481. }

  482. 

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

  484. {

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

  486. }

  487. 

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

  489. {

  490.     int i;

  491.     pixel *src = (pixel*)_src;

  492.     int stride = _stride/sizeof(pixel);

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

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

  495. 

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

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

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

  499.     }

  500. }

  501. 

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

  503. {

  504.     int i;

  505.     pixel *src = (pixel*)_src;

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

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

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

  509. 

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

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

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

  513.     }

  514. }

  515. 

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

  517. {

  518.     int i;

  519.     pixel *src = (pixel*)_src;

  520.     stride /= sizeof(pixel);

  521. 

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

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

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

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

  526.     }

  527. }

  528. 

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

  530. {

  531.     int i;

  532.     pixel *src = (pixel*)_src;

  533.     stride >>= sizeof(pixel)-1;

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

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

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

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

  538.     }

  539. }

  540. 

  541. #define PRED8x8_X(n, v)\

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

  543. {\

  544.     int i;\

  545.     const pixel4 a = PIXEL_SPLAT_X4(v);\

  546.     pixel *src = (pixel*)_src;\

  547.     stride /= sizeof(pixel);\

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

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

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

  551.     }\

  552. }

  553. 

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

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

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

  557. 

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

  559. {

  560.     FUNCC(pred8x8_128_dc)(_src, stride);

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

  562. }

  563. 

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

  565. {

  566.     int i;

  567.     int dc0, dc2;

  568.     pixel4 dc0splat, dc2splat;

  569.     pixel *src = (pixel*)_src;

  570.     stride /= sizeof(pixel);

  571. 

  572.     dc0=dc2=0;

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

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

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

  576.     }

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

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

  579. 

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

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

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

  583.     }

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

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

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

  587.     }

  588. }

  589. 

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

  591. {

  592.     FUNCC(pred8x8_left_dc)(_src, stride);

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

  594. }

  595. 

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

  597. {

  598.     int i;

  599.     int dc0, dc1;

  600.     pixel4 dc0splat, dc1splat;

  601.     pixel *src = (pixel*)_src;

  602.     stride /= sizeof(pixel);

  603. 

  604.     dc0=dc1=0;

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

  606.         dc0+= src[i-stride];

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

  608.     }

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

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

  611. 

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

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

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

  615.     }

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

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

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

  619.     }

  620. }

  621. 

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

  623. {

  624.     int i;

  625.     int dc0, dc1;

  626.     pixel4 dc0splat, dc1splat;

  627.     pixel *src = (pixel*)_src;

  628.     stride >>= sizeof(pixel)-1;

  629. 

  630.     dc0=dc1=0;

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

  632.         dc0+= src[i-stride];

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

  634.     }

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

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

  637. 

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

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

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

  641.     }

  642. }

  643. 

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

  645. {

  646.     int i;

  647.     int dc0, dc1, dc2;

  648.     pixel4 dc0splat, dc1splat, dc2splat, dc3splat;

  649.     pixel *src = (pixel*)_src;

  650.     stride /= sizeof(pixel);

  651. 

  652.     dc0=dc1=dc2=0;

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

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

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

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

  657.     }

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

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

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

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

  662. 

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

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

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

  666.     }

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

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

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

  670.     }

  671. }

  672. 

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

  674. {

  675.     int i;

  676.     int dc0, dc1, dc2, dc3, dc4;

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

  678.     pixel *src = (pixel*)_src;

  679.     stride >>= sizeof(pixel)-1;

  680. 

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

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

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

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

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

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

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

  688.     }

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

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

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

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

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

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

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

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

  697. 

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

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

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

  701.     }

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

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

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

  705.     }

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

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

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

  709.     }

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

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

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

  713.     }

  714. }

  715. 

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

  717. {

  718.     FUNCC(pred8x8_top_dc)(src, stride);

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

  720. }

  721. 

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

  723. {

  724.     FUNCC(pred8x16_top_dc)(src, stride);

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

  726. }

  727. 

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

  729. {

  730.     FUNCC(pred8x8_dc)(src, stride);

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

  732. }

  733. 

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

  735. {

  736.     FUNCC(pred8x16_dc)(src, stride);

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

  738. }

  739. 

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

  741. {

  742.     FUNCC(pred8x8_left_dc)(src, stride);

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

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

  745. }

  746. 

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

  748. {

  749.     FUNCC(pred8x16_left_dc)(src, stride);

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

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

  752. }

  753. 

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

  755. {

  756.     FUNCC(pred8x8_left_dc)(src, stride);

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

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

  759. }

  760. 

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

  762. {

  763.     FUNCC(pred8x16_left_dc)(src, stride);

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

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

  766. }

  767. 

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

  769. {

  770.   int j, k;

  771.   int a;

  772.   INIT_CLIP

  773.   pixel *src = (pixel*)_src;

  774.   int stride = _stride/sizeof(pixel);

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

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

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

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

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

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

  781.     src1 += stride; src2 -= stride;

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

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

  784.   }

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

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

  787. 

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

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

  790.     int b = a;

  791.     a += V;

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

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

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

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

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

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

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

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

  800.     src += stride;

  801.   }

  802. }

  803. 

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

  805. {

  806.   int j, k;

  807.   int a;

  808.   INIT_CLIP

  809.   pixel *src = (pixel*)_src;

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

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

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

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

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

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

  816. 

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

  818.       src1 += stride; src2 -= stride;

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

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

  821.   }

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

  823.       src1 += stride; src2 -= stride;

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

  825.   }

  826. 

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

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

  829. 

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

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

  832.     int b = a;

  833.     a += V;

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

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

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

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

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

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

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

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

  842.     src += stride;

  843.   }

  844. }

  845. 

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

  847. #define PL(y) \

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

  849. #define PREDICT_8x8_LOAD_LEFT \

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

  851.                      + 2*SRC(-1,0) + SRC(-1,1) + 2) >> 2; \

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

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

  854. 

  855. #define PT(x) \

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

  857. #define PREDICT_8x8_LOAD_TOP \

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

  859.                      + 2*SRC(0,-1) + SRC(1,-1) + 2) >> 2; \

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

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

  862.                      + 2*SRC(7,-1) + SRC(6,-1) + 2) >> 2

  863. 

  864. #define PTR(x) \

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

  866. #define PREDICT_8x8_LOAD_TOPRIGHT \

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

  868.     if(has_topright) { \

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

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

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

  872. 

  873. #define PREDICT_8x8_LOAD_TOPLEFT \

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

  875. 

  876. #define PREDICT_8x8_DC(v) \

  877.     int y; \

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

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

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

  881.         src += stride; \

  882.     }

  883. 

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

  885.                                    int has_topright, ptrdiff_t _stride)

  886. {

  887.     pixel *src = (pixel*)_src;

  888.     int stride = _stride/sizeof(pixel);

  889. 

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

  891. }

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

  893.                                     int has_topright, ptrdiff_t _stride)

  894. {

  895.     pixel *src = (pixel*)_src;

  896.     int stride = _stride/sizeof(pixel);

  897. 

  898.     PREDICT_8x8_LOAD_LEFT;

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

  900.     PREDICT_8x8_DC(dc);

  901. }

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

  903.                                    int has_topright, ptrdiff_t _stride)

  904. {

  905.     pixel *src = (pixel*)_src;

  906.     int stride = _stride/sizeof(pixel);

  907. 

  908.     PREDICT_8x8_LOAD_TOP;

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

  910.     PREDICT_8x8_DC(dc);

  911. }

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

  913.                                int has_topright, ptrdiff_t _stride)

  914. {

  915.     pixel *src = (pixel*)_src;

  916.     int stride = _stride/sizeof(pixel);

  917. 

  918.     PREDICT_8x8_LOAD_LEFT;

  919.     PREDICT_8x8_LOAD_TOP;

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

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

  922.     PREDICT_8x8_DC(dc);

  923. }

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

  925.                                        int has_topright, ptrdiff_t _stride)

  926. {

  927.     pixel *src = (pixel*)_src;

  928.     int stride = _stride/sizeof(pixel);

  929.     pixel4 a;

  930. 

  931.     PREDICT_8x8_LOAD_LEFT;

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

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

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

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

  936. #undef ROW

  937. }

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

  939.                                      int has_topright, ptrdiff_t _stride)

  940. {

  941.     int y;

  942.     pixel *src = (pixel*)_src;

  943.     int stride = _stride/sizeof(pixel);

  944.     pixel4 a, b;

  945. 

  946.     PREDICT_8x8_LOAD_TOP;

  947.     src[0] = t0;

  948.     src[1] = t1;

  949.     src[2] = t2;

  950.     src[3] = t3;

  951.     src[4] = t4;

  952.     src[5] = t5;

  953.     src[6] = t6;

  954.     src[7] = t7;

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

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

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

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

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

  960.     }

  961. }

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

  963.                                       int has_topright, ptrdiff_t _stride)

  964. {

  965.     pixel *src = (pixel*)_src;

  966.     int stride = _stride/sizeof(pixel);

  967.     PREDICT_8x8_LOAD_TOP;

  968.     PREDICT_8x8_LOAD_TOPRIGHT;

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

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

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

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

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

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

  975.     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;

  976.     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;

  977.     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;

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

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

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

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

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

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

  984. }

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

  986.                                        int has_topright, ptrdiff_t _stride)

  987. {

  988.     pixel *src = (pixel*)_src;

  989.     int stride = _stride/sizeof(pixel);

  990.     PREDICT_8x8_LOAD_TOP;

  991.     PREDICT_8x8_LOAD_LEFT;

  992.     PREDICT_8x8_LOAD_TOPLEFT;

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

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

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

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

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

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

  999.     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;

  1000.     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;

  1001.     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;

  1002.     SRC(2,0)=SRC(3,1)=SRC(4,2)=SRC(5,3)=SRC(6,4)=SRC(7,5)= (t0 + 2*t1 + t2 + 2) >> 2;

  1003.     SRC(3,0)=SRC(4,1)=SRC(5,2)=SRC(6,3)=SRC(7,4)= (t1 + 2*t2 + t3 + 2) >> 2;

  1004.     SRC(4,0)=SRC(5,1)=SRC(6,2)=SRC(7,3)= (t2 + 2*t3 + t4 + 2) >> 2;

  1005.     SRC(5,0)=SRC(6,1)=SRC(7,2)= (t3 + 2*t4 + t5 + 2) >> 2;

  1006.     SRC(6,0)=SRC(7,1)= (t4 + 2*t5 + t6 + 2) >> 2;

  1007.     SRC(7,0)= (t5 + 2*t6 + t7 + 2) >> 2;

  1008. }

  1009. static void FUNCC(pred8x8l_vertical_right)(uint8_t *_src, int has_topleft,

  1010.                                            int has_topright, ptrdiff_t _stride)

  1011. {

  1012.     pixel *src = (pixel*)_src;

  1013.     int stride = _stride/sizeof(pixel);

  1014.     PREDICT_8x8_LOAD_TOP;

  1015.     PREDICT_8x8_LOAD_LEFT;

  1016.     PREDICT_8x8_LOAD_TOPLEFT;

  1017.     SRC(0,6)= (l5 + 2*l4 + l3 + 2) >> 2;

  1018.     SRC(0,7)= (l6 + 2*l5 + l4 + 2) >> 2;

  1019.     SRC(0,4)=SRC(1,6)= (l3 + 2*l2 + l1 + 2) >> 2;

  1020.     SRC(0,5)=SRC(1,7)= (l4 + 2*l3 + l2 + 2) >> 2;

  1021.     SRC(0,2)=SRC(1,4)=SRC(2,6)= (l1 + 2*l0 + lt + 2) >> 2;

  1022.     SRC(0,3)=SRC(1,5)=SRC(2,7)= (l2 + 2*l1 + l0 + 2) >> 2;

  1023.     SRC(0,1)=SRC(1,3)=SRC(2,5)=SRC(3,7)= (l0 + 2*lt + t0 + 2) >> 2;

  1024.     SRC(0,0)=SRC(1,2)=SRC(2,4)=SRC(3,6)= (lt + t0 + 1) >> 1;

  1025.     SRC(1,1)=SRC(2,3)=SRC(3,5)=SRC(4,7)= (lt + 2*t0 + t1 + 2) >> 2;

  1026.     SRC(1,0)=SRC(2,2)=SRC(3,4)=SRC(4,6)= (t0 + t1 + 1) >> 1;

  1027.     SRC(2,1)=SRC(3,3)=SRC(4,5)=SRC(5,7)= (t0 + 2*t1 + t2 + 2) >> 2;

  1028.     SRC(2,0)=SRC(3,2)=SRC(4,4)=SRC(5,6)= (t1 + t2 + 1) >> 1;

  1029.     SRC(3,1)=SRC(4,3)=SRC(5,5)=SRC(6,7)= (t1 + 2*t2 + t3 + 2) >> 2;

  1030.     SRC(3,0)=SRC(4,2)=SRC(5,4)=SRC(6,6)= (t2 + t3 + 1) >> 1;

  1031.     SRC(4,1)=SRC(5,3)=SRC(6,5)=SRC(7,7)= (t2 + 2*t3 + t4 + 2) >> 2;

  1032.     SRC(4,0)=SRC(5,2)=SRC(6,4)=SRC(7,6)= (t3 + t4 + 1) >> 1;

  1033.     SRC(5,1)=SRC(6,3)=SRC(7,5)= (t3 + 2*t4 + t5 + 2) >> 2;

  1034.     SRC(5,0)=SRC(6,2)=SRC(7,4)= (t4 + t5 + 1) >> 1;

  1035.     SRC(6,1)=SRC(7,3)= (t4 + 2*t5 + t6 + 2) >> 2;

  1036.     SRC(6,0)=SRC(7,2)= (t5 + t6 + 1) >> 1;

  1037.     SRC(7,1)= (t5 + 2*t6 + t7 + 2) >> 2;

  1038.     SRC(7,0)= (t6 + t7 + 1) >> 1;

  1039. }

  1040. static void FUNCC(pred8x8l_horizontal_down)(uint8_t *_src, int has_topleft,

  1041.                                             int has_topright, ptrdiff_t _stride)

  1042. {

  1043.     pixel *src = (pixel*)_src;

  1044.     int stride = _stride/sizeof(pixel);

  1045.     PREDICT_8x8_LOAD_TOP;

  1046.     PREDICT_8x8_LOAD_LEFT;

  1047.     PREDICT_8x8_LOAD_TOPLEFT;

  1048.     SRC(0,7)= (l6 + l7 + 1) >> 1;

  1049.     SRC(1,7)= (l5 + 2*l6 + l7 + 2) >> 2;

  1050.     SRC(0,6)=SRC(2,7)= (l5 + l6 + 1) >> 1;

  1051.     SRC(1,6)=SRC(3,7)= (l4 + 2*l5 + l6 + 2) >> 2;

  1052.     SRC(0,5)=SRC(2,6)=SRC(4,7)= (l4 + l5 + 1) >> 1;

  1053.     SRC(1,5)=SRC(3,6)=SRC(5,7)= (l3 + 2*l4 + l5 + 2) >> 2;

  1054.     SRC(0,4)=SRC(2,5)=SRC(4,6)=SRC(6,7)= (l3 + l4 + 1) >> 1;

  1055.     SRC(1,4)=SRC(3,5)=SRC(5,6)=SRC(7,7)= (l2 + 2*l3 + l4 + 2) >> 2;

  1056.     SRC(0,3)=SRC(2,4)=SRC(4,5)=SRC(6,6)= (l2 + l3 + 1) >> 1;

  1057.     SRC(1,3)=SRC(3,4)=SRC(5,5)=SRC(7,6)= (l1 + 2*l2 + l3 + 2) >> 2;

  1058.     SRC(0,2)=SRC(2,3)=SRC(4,4)=SRC(6,5)= (l1 + l2 + 1) >> 1;

  1059.     SRC(1,2)=SRC(3,3)=SRC(5,4)=SRC(7,5)= (l0 + 2*l1 + l2 + 2) >> 2;

  1060.     SRC(0,1)=SRC(2,2)=SRC(4,3)=SRC(6,4)= (l0 + l1 + 1) >> 1;

  1061.     SRC(1,1)=SRC(3,2)=SRC(5,3)=SRC(7,4)= (lt + 2*l0 + l1 + 2) >> 2;

  1062.     SRC(0,0)=SRC(2,1)=SRC(4,2)=SRC(6,3)= (lt + l0 + 1) >> 1;

  1063.     SRC(1,0)=SRC(3,1)=SRC(5,2)=SRC(7,3)= (l0 + 2*lt + t0 + 2) >> 2;

  1064.     SRC(2,0)=SRC(4,1)=SRC(6,2)= (t1 + 2*t0 + lt + 2) >> 2;

  1065.     SRC(3,0)=SRC(5,1)=SRC(7,2)= (t2 + 2*t1 + t0 + 2) >> 2;

  1066.     SRC(4,0)=SRC(6,1)= (t3 + 2*t2 + t1 + 2) >> 2;

  1067.     SRC(5,0)=SRC(7,1)= (t4 + 2*t3 + t2 + 2) >> 2;

  1068.     SRC(6,0)= (t5 + 2*t4 + t3 + 2) >> 2;

  1069.     SRC(7,0)= (t6 + 2*t5 + t4 + 2) >> 2;

  1070. }

  1071. static void FUNCC(pred8x8l_vertical_left)(uint8_t *_src, int has_topleft,

  1072.                                           int has_topright, ptrdiff_t _stride)

  1073. {

  1074.     pixel *src = (pixel*)_src;

  1075.     int stride = _stride/sizeof(pixel);

  1076.     PREDICT_8x8_LOAD_TOP;

  1077.     PREDICT_8x8_LOAD_TOPRIGHT;

  1078.     SRC(0,0)= (t0 + t1 + 1) >> 1;

  1079.     SRC(0,1)= (t0 + 2*t1 + t2 + 2) >> 2;

  1080.     SRC(0,2)=SRC(1,0)= (t1 + t2 + 1) >> 1;

  1081.     SRC(0,3)=SRC(1,1)= (t1 + 2*t2 + t3 + 2) >> 2;

  1082.     SRC(0,4)=SRC(1,2)=SRC(2,0)= (t2 + t3 + 1) >> 1;

  1083.     SRC(0,5)=SRC(1,3)=SRC(2,1)= (t2 + 2*t3 + t4 + 2) >> 2;

  1084.     SRC(0,6)=SRC(1,4)=SRC(2,2)=SRC(3,0)= (t3 + t4 + 1) >> 1;

  1085.     SRC(0,7)=SRC(1,5)=SRC(2,3)=SRC(3,1)= (t3 + 2*t4 + t5 + 2) >> 2;

  1086.     SRC(1,6)=SRC(2,4)=SRC(3,2)=SRC(4,0)= (t4 + t5 + 1) >> 1;

  1087.     SRC(1,7)=SRC(2,5)=SRC(3,3)=SRC(4,1)= (t4 + 2*t5 + t6 + 2) >> 2;

  1088.     SRC(2,6)=SRC(3,4)=SRC(4,2)=SRC(5,0)= (t5 + t6 + 1) >> 1;

  1089.     SRC(2,7)=SRC(3,5)=SRC(4,3)=SRC(5,1)= (t5 + 2*t6 + t7 + 2) >> 2;

  1090.     SRC(3,6)=SRC(4,4)=SRC(5,2)=SRC(6,0)= (t6 + t7 + 1) >> 1;

  1091.     SRC(3,7)=SRC(4,5)=SRC(5,3)=SRC(6,1)= (t6 + 2*t7 + t8 + 2) >> 2;

  1092.     SRC(4,6)=SRC(5,4)=SRC(6,2)=SRC(7,0)= (t7 + t8 + 1) >> 1;

  1093.     SRC(4,7)=SRC(5,5)=SRC(6,3)=SRC(7,1)= (t7 + 2*t8 + t9 + 2) >> 2;

  1094.     SRC(5,6)=SRC(6,4)=SRC(7,2)= (t8 + t9 + 1) >> 1;

  1095.     SRC(5,7)=SRC(6,5)=SRC(7,3)= (t8 + 2*t9 + t10 + 2) >> 2;

  1096.     SRC(6,6)=SRC(7,4)= (t9 + t10 + 1) >> 1;

  1097.     SRC(6,7)=SRC(7,5)= (t9 + 2*t10 + t11 + 2) >> 2;

  1098.     SRC(7,6)= (t10 + t11 + 1) >> 1;

  1099.     SRC(7,7)= (t10 + 2*t11 + t12 + 2) >> 2;

  1100. }

  1101. static void FUNCC(pred8x8l_horizontal_up)(uint8_t *_src, int has_topleft,

  1102.                                           int has_topright, ptrdiff_t _stride)

  1103. {

  1104.     pixel *src = (pixel*)_src;

  1105.     int stride = _stride/sizeof(pixel);

  1106.     PREDICT_8x8_LOAD_LEFT;

  1107.     SRC(0,0)= (l0 + l1 + 1) >> 1;

  1108.     SRC(1,0)= (l0 + 2*l1 + l2 + 2) >> 2;

  1109.     SRC(0,1)=SRC(2,0)= (l1 + l2 + 1) >> 1;

  1110.     SRC(1,1)=SRC(3,0)= (l1 + 2*l2 + l3 + 2) >> 2;

  1111.     SRC(0,2)=SRC(2,1)=SRC(4,0)= (l2 + l3 + 1) >> 1;

  1112.     SRC(1,2)=SRC(3,1)=SRC(5,0)= (l2 + 2*l3 + l4 + 2) >> 2;

  1113.     SRC(0,3)=SRC(2,2)=SRC(4,1)=SRC(6,0)= (l3 + l4 + 1) >> 1;

  1114.     SRC(1,3)=SRC(3,2)=SRC(5,1)=SRC(7,0)= (l3 + 2*l4 + l5 + 2) >> 2;

  1115.     SRC(0,4)=SRC(2,3)=SRC(4,2)=SRC(6,1)= (l4 + l5 + 1) >> 1;

  1116.     SRC(1,4)=SRC(3,3)=SRC(5,2)=SRC(7,1)= (l4 + 2*l5 + l6 + 2) >> 2;

  1117.     SRC(0,5)=SRC(2,4)=SRC(4,3)=SRC(6,2)= (l5 + l6 + 1) >> 1;

  1118.     SRC(1,5)=SRC(3,4)=SRC(5,3)=SRC(7,2)= (l5 + 2*l6 + l7 + 2) >> 2;

  1119.     SRC(0,6)=SRC(2,5)=SRC(4,4)=SRC(6,3)= (l6 + l7 + 1) >> 1;

  1120.     SRC(1,6)=SRC(3,5)=SRC(5,4)=SRC(7,3)= (l6 + 3*l7 + 2) >> 2;

  1121.     SRC(0,7)=SRC(1,7)=SRC(2,6)=SRC(2,7)=SRC(3,6)=

  1122.     SRC(3,7)=SRC(4,5)=SRC(4,6)=SRC(4,7)=SRC(5,5)=

  1123.     SRC(5,6)=SRC(5,7)=SRC(6,4)=SRC(6,5)=SRC(6,6)=

  1124.     SRC(6,7)=SRC(7,4)=SRC(7,5)=SRC(7,6)=SRC(7,7)= l7;

  1125. }

  1126. #undef PREDICT_8x8_LOAD_LEFT

  1127. #undef PREDICT_8x8_LOAD_TOP

  1128. #undef PREDICT_8x8_LOAD_TOPLEFT

  1129. #undef PREDICT_8x8_LOAD_TOPRIGHT

  1130. #undef PREDICT_8x8_DC

  1131. #undef PTR

  1132. #undef PT

  1133. #undef PL

  1134. #undef SRC

  1135. 

  1136. static void FUNCC(pred4x4_vertical_add)(uint8_t *_pix, int16_t *_block,

  1137.                                         ptrdiff_t stride)

  1138. {

  1139.     int i;

  1140.     pixel *pix = (pixel*)_pix;

  1141.     const dctcoef *block = (const dctcoef*)_block;

  1142.     stride /= sizeof(pixel);

  1143.     pix -= stride;

  1144.     for(i=0; i<4; i++){

  1145.         pixel v = pix[0];

  1146.         pix[1*stride]= v += block[0];

  1147.         pix[2*stride]= v += block[4];

  1148.         pix[3*stride]= v += block[8];

  1149.         pix[4*stride]= v +  block[12];

  1150.         pix++;

  1151.         block++;

  1152.     }

  1153. 

  1154.     memset(_block, 0, sizeof(dctcoef) * 16);

  1155. }

  1156. 

  1157. static void FUNCC(pred4x4_horizontal_add)(uint8_t *_pix, int16_t *_block,

  1158.                                           ptrdiff_t stride)

  1159. {

  1160.     int i;

  1161.     pixel *pix = (pixel*)_pix;

  1162.     const dctcoef *block = (const dctcoef*)_block;

  1163.     stride /= sizeof(pixel);

  1164.     for(i=0; i<4; i++){

  1165.         pixel v = pix[-1];

  1166.         pix[0]= v += block[0];

  1167.         pix[1]= v += block[1];

  1168.         pix[2]= v += block[2];

  1169.         pix[3]= v +  block[3];

  1170.         pix+= stride;

  1171.         block+= 4;

  1172.     }

  1173. 

  1174.     memset(_block, 0, sizeof(dctcoef) * 16);

  1175. }

  1176. 

  1177. static void FUNCC(pred8x8l_vertical_add)(uint8_t *_pix, int16_t *_block,

  1178.                                          ptrdiff_t stride)

  1179. {

  1180.     int i;

  1181.     pixel *pix = (pixel*)_pix;

  1182.     const dctcoef *block = (const dctcoef*)_block;

  1183.     stride /= sizeof(pixel);

  1184.     pix -= stride;

  1185.     for(i=0; i<8; i++){

  1186.         pixel v = pix[0];

  1187.         pix[1*stride]= v += block[0];

  1188.         pix[2*stride]= v += block[8];

  1189.         pix[3*stride]= v += block[16];

  1190.         pix[4*stride]= v += block[24];

  1191.         pix[5*stride]= v += block[32];

  1192.         pix[6*stride]= v += block[40];

  1193.         pix[7*stride]= v += block[48];

  1194.         pix[8*stride]= v +  block[56];

  1195.         pix++;

  1196.         block++;

  1197.     }

  1198. 

  1199.     memset(_block, 0, sizeof(dctcoef) * 64);

  1200. }

  1201. 

  1202. static void FUNCC(pred8x8l_horizontal_add)(uint8_t *_pix, int16_t *_block,

  1203.                                            ptrdiff_t stride)

  1204. {

  1205.     int i;

  1206.     pixel *pix = (pixel*)_pix;

  1207.     const dctcoef *block = (const dctcoef*)_block;

  1208.     stride /= sizeof(pixel);

  1209.     for(i=0; i<8; i++){

  1210.         pixel v = pix[-1];

  1211.         pix[0]= v += block[0];

  1212.         pix[1]= v += block[1];

  1213.         pix[2]= v += block[2];

  1214.         pix[3]= v += block[3];

  1215.         pix[4]= v += block[4];

  1216.         pix[5]= v += block[5];

  1217.         pix[6]= v += block[6];

  1218.         pix[7]= v +  block[7];

  1219.         pix+= stride;

  1220.         block+= 8;

  1221.     }

  1222. 

  1223.     memset(_block, 0, sizeof(dctcoef) * 64);

  1224. }

  1225. 

  1226. static void FUNCC(pred16x16_vertical_add)(uint8_t *pix, const int *block_offset,

  1227.                                           int16_t *block,

  1228.                                           ptrdiff_t stride)

  1229. {

  1230.     int i;

  1231.     for(i=0; i<16; i++)

  1232.         FUNCC(pred4x4_vertical_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1233. }

  1234. 

  1235. static void FUNCC(pred16x16_horizontal_add)(uint8_t *pix,

  1236.                                             const int *block_offset,

  1237.                                             int16_t *block,

  1238.                                             ptrdiff_t stride)

  1239. {

  1240.     int i;

  1241.     for(i=0; i<16; i++)

  1242.         FUNCC(pred4x4_horizontal_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1243. }

  1244. 

  1245. static void FUNCC(pred8x8_vertical_add)(uint8_t *pix, const int *block_offset,

  1246.                                         int16_t *block, ptrdiff_t stride)

  1247. {

  1248.     int i;

  1249.     for(i=0; i<4; i++)

  1250.         FUNCC(pred4x4_vertical_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1251. }

  1252. 

  1253. static void FUNCC(pred8x16_vertical_add)(uint8_t *pix, const int *block_offset,

  1254.                                          int16_t *block, ptrdiff_t stride)

  1255. {

  1256.     int i;

  1257.     for(i=0; i<4; i++)

  1258.         FUNCC(pred4x4_vertical_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1259.     for(i=4; i<8; i++)

  1260.         FUNCC(pred4x4_vertical_add)(pix + block_offset[i+4], block + i*16*sizeof(pixel), stride);

  1261. }

  1262. 

  1263. static void FUNCC(pred8x8_horizontal_add)(uint8_t *pix, const int *block_offset,

  1264.                                           int16_t *block,

  1265.                                           ptrdiff_t stride)

  1266. {

  1267.     int i;

  1268.     for(i=0; i<4; i++)

  1269.         FUNCC(pred4x4_horizontal_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1270. }

  1271. 

  1272. static void FUNCC(pred8x16_horizontal_add)(uint8_t *pix,

  1273.                                            const int *block_offset,

  1274.                                            int16_t *block, ptrdiff_t stride)

  1275. {

  1276.     int i;

  1277.     for(i=0; i<4; i++)

  1278.         FUNCC(pred4x4_horizontal_add)(pix + block_offset[i], block + i*16*sizeof(pixel), stride);

  1279.     for(i=4; i<8; i++)

  1280.         FUNCC(pred4x4_horizontal_add)(pix + block_offset[i+4], block + i*16*sizeof(pixel), stride);

  1281. }