vpx/vp8/common/common.h

/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#ifndef VP8_COMMON_COMMON_H_
#define VP8_COMMON_COMMON_H_

#include <assert.h>

/* Interface header for common constant data structures and lookup tables */

#include "vpx_mem/vpx_mem.h"

#ifdef __cplusplus
extern "C" {
#endif

#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#define MAX(x, y) (((x) > (y)) ? (x) : (y))

/* Only need this for fixed-size arrays, for structs just assign. */

#define vp8_copy( Dest, Src) { \
        assert( sizeof( Dest) == sizeof( Src)); \
        vpx_memcpy( Dest, Src, sizeof( Src)); \
    }

/* Use this for variably-sized arrays. */

#define vp8_copy_array( Dest, Src, N) { \
        assert( sizeof( *Dest) == sizeof( *Src)); \
        vpx_memcpy( Dest, Src, N * sizeof( *Src)); \
    }

#define vp8_zero( Dest)  vpx_memset( &Dest, 0, sizeof( Dest));

#define vp8_zero_array( Dest, N)  vpx_memset( Dest, 0, N * sizeof( *Dest));


#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VP8_COMMON_COMMON_H_