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Diffstat (limited to 'media/libvpx/vp8/common/common.h')
-rw-r--r-- | media/libvpx/vp8/common/common.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/media/libvpx/vp8/common/common.h b/media/libvpx/vp8/common/common.h new file mode 100644 index 000000000..ba3d9f54d --- /dev/null +++ b/media/libvpx/vp8/common/common.h @@ -0,0 +1,51 @@ +/* + * 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)); \ + memcpy( Dest, Src, sizeof( Src)); \ + } + +/* Use this for variably-sized arrays. */ + +#define vp8_copy_array( Dest, Src, N) { \ + assert( sizeof( *Dest) == sizeof( *Src)); \ + memcpy( Dest, Src, N * sizeof( *Src)); \ + } + +#define vp8_zero( Dest) memset( &Dest, 0, sizeof( Dest)); + +#define vp8_zero_array( Dest, N) memset( Dest, 0, N * sizeof( *Dest)); + + +#ifdef __cplusplus +} // extern "C" +#endif + +#endif // VP8_COMMON_COMMON_H_ |