1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #ifndef VP8_COMMON_COMMON_H_ 13 #define VP8_COMMON_COMMON_H_ 14 15 #include <assert.h> 16 17 /* Interface header for common constant data structures and lookup tables */ 18 19 #include "vpx_mem/vpx_mem.h" 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 #define MIN(x, y) (((x) < (y)) ? (x) : (y)) 26 #define MAX(x, y) (((x) > (y)) ? (x) : (y)) 27 28 /* Only need this for fixed-size arrays, for structs just assign. */ 29 30 #define vp8_copy( Dest, Src) { \ 31 assert( sizeof( Dest) == sizeof( Src)); \ 32 memcpy( Dest, Src, sizeof( Src)); \ 33 } 34 35 /* Use this for variably-sized arrays. */ 36 37 #define vp8_copy_array( Dest, Src, N) { \ 38 assert( sizeof( *Dest) == sizeof( *Src)); \ 39 memcpy( Dest, Src, N * sizeof( *Src)); \ 40 } 41 42 #define vp8_zero( Dest) memset( &Dest, 0, sizeof( Dest)); 43 44 #define vp8_zero_array( Dest, N) memset( Dest, 0, N * sizeof( *Dest)); 45 46 47 #ifdef __cplusplus 48 } // extern "C" 49 #endif 50 51 #endif // VP8_COMMON_COMMON_H_ 52