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revision 1893, Mon Sep 13 07:38:09 2010 UTC revision 2177, Sun Nov 3 11:50:49 2019 UTC
# Line 3  Line 3 
3   *  XVID MPEG-4 VIDEO CODEC   *  XVID MPEG-4 VIDEO CODEC
4   *  - Global definitions  -   *  - Global definitions  -
5   *   *
6   *  Copyright(C) 2002 Michael Militzer <isibaar@xvid.org>   *  Copyright(C) 2002-2010 Michael Militzer <michael@xvid.org>
7   *   *
8   *  This program is free software ; you can redistribute it and/or modify   *  This program is free software ; you can redistribute it and/or modify
9   *  it under the terms of the GNU General Public License as published by   *  it under the terms of the GNU General Public License as published by
# Line 19  Line 19 
19   *  along with this program ; if not, write to the Free Software   *  along with this program ; if not, write to the Free Software
20   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
21   *   *
22   * $Id: global.h,v 1.26 2010-09-13 07:38:09 Isibaar Exp $   * $Id$
23   *   *
24   ****************************************************************************/   ****************************************************************************/
25    
# Line 81  Line 81 
81    
82  typedef struct  typedef struct
83  {  {
84          VECTOR duv[3];          VECTOR duv[4];
85  }  }
86  WARPPOINTS;  WARPPOINTS;
87    
# Line 203  Line 203 
203          int32_t sad8[4];                        /* SAD values for inter4v-VECTORs */          int32_t sad8[4];                        /* SAD values for inter4v-VECTORs */
204          int32_t sad16;                          /* SAD value for inter-VECTOR */          int32_t sad16;                          /* SAD value for inter-VECTOR */
205    
206            int32_t var16;                          /* Variance of the 16x16 luma block */
207            int32_t rel_var8[6];            /* Relative variances of the 8x8 sub-blocks */
208    
209          int dquant;          int dquant;
210          int cbp;          int cbp;
211    
# Line 248  Line 251 
251    
252  /* useful macros */  /* useful macros */
253    
254    #ifndef MIN
255  #define MIN(X, Y) ((X)<(Y)?(X):(Y))  #define MIN(X, Y) ((X)<(Y)?(X):(Y))
256    #endif
257    #ifndef MAX
258  #define MAX(X, Y) ((X)>(Y)?(X):(Y))  #define MAX(X, Y) ((X)>(Y)?(X):(Y))
259    #endif
260  /* #define ABS(X)    (((X)>0)?(X):-(X)) */  /* #define ABS(X)    (((X)>0)?(X):-(X)) */
261  #define SIGN(X)   (((X)>0)?1:-1)  #define SIGN(X)   (((X)>0)?1:-1)
262  #define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))  #define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))
263  #define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))  #define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))
264  #define SWAP(_T_,A,B)    { _T_ tmp = A; A = B; B = tmp; }  #define SWAP(_T_,A,B)    { _T_ tmp = A; A = B; B = tmp; }
265    
266    static __inline uint32_t
267    isqrt(unsigned long n)
268    {
269        uint32_t c = 0x8000;
270        uint32_t g = 0x8000;
271    
272        for(;;) {
273            if(g*g > n)
274                g ^= c;
275            c >>= 1;
276            if(c == 0)
277                return g;
278            g |= c;
279        }
280    }
281    
282  #endif                                                  /* _GLOBAL_H_ */  #endif                                                  /* _GLOBAL_H_ */
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