/***************************************************************************** * clip1.h: h264 encoder library ***************************************************************************** * Copyright (C) 2003 Laurent Aimar * $Id: clip1.h,v 1.1 2004/06/03 19:27:06 fenrir Exp $ * * Authors: Laurent Aimar <fenrir@via.ecp.fr> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. *****************************************************************************/#ifndef _CLIP1_H#define _CLIP1_H 1/* Clip1 table * XXX : only for tap filter. * * With tap filter (( 1, -5, 20, 20, -5, 1 ) + 16 )/ 32 * -> (-2*5 * 255+16)/32 <= out <= (2*1*255 + 2*20*255+16)/32 * -> -80 <= out <= 335 * So we need a table of 80+335+1 = 416 entries */static const uint8_t x264_mc_clip1_table[80+1+335] ={    /* -80 -> -1 */    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,    0,0,0,0,0,0,    /* 0 -> 255 */    0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 17,    18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,    36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,    54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71,    72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,    90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,101,102,103,104,105,106,107,    108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,    126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,    162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,    180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,    198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,    216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,    234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,    252,253,254,255,    /* 256 -> 340 */    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,    255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,    255,255,255,255,255,255,255,255,};static inline uint8_t x264_mc_clip1( int x ){    return x264_mc_clip1_table[x+80];}static inline uint8_t x264_clip_uint8( int x ){    return x&(~255) ? (-x)>>31 : x;}#endif