69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*
|
|
* 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 VP9_COMMON_VP9_COMMON_H_
|
|
#define VP9_COMMON_VP9_COMMON_H_
|
|
|
|
/* Interface header for common constant data structures and lookup tables */
|
|
|
|
#include <assert.h>
|
|
|
|
#include "./vpx_config.h"
|
|
#include "vpx_mem/vpx_mem.h"
|
|
#include "vpx/vpx_integer.h"
|
|
|
|
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
|
|
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
|
|
|
|
#define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n) - 1))) >> (n))
|
|
|
|
/* If we don't want to use ROUND_POWER_OF_TWO macro
|
|
static INLINE int16_t round_power_of_two(int16_t value, int n) {
|
|
return (value + (1 << (n - 1))) >> n;
|
|
}*/
|
|
|
|
// Only need this for fixed-size arrays, for structs just assign.
|
|
#define vp9_copy(dest, src) { \
|
|
assert(sizeof(dest) == sizeof(src)); \
|
|
vpx_memcpy(dest, src, sizeof(src)); \
|
|
}
|
|
|
|
// Use this for variably-sized arrays.
|
|
#define vp9_copy_array(dest, src, n) { \
|
|
assert(sizeof(*dest) == sizeof(*src)); \
|
|
vpx_memcpy(dest, src, n * sizeof(*src)); \
|
|
}
|
|
|
|
#define vp9_zero(dest) vpx_memset(&dest, 0, sizeof(dest));
|
|
#define vp9_zero_array(dest, n) vpx_memset(dest, 0, n * sizeof(*dest));
|
|
|
|
static INLINE uint8_t clip_pixel(int val) {
|
|
return (val > 255) ? 255u : (val < 0) ? 0u : val;
|
|
}
|
|
|
|
static INLINE int clamp(int value, int low, int high) {
|
|
return value < low ? low : (value > high ? high : value);
|
|
}
|
|
|
|
static INLINE double fclamp(double value, double low, double high) {
|
|
return value < low ? low : (value > high ? high : value);
|
|
}
|
|
|
|
static INLINE int multiple16(int value) {
|
|
return (value + 15) & ~15;
|
|
}
|
|
|
|
#define SYNC_CODE_0 0x49
|
|
#define SYNC_CODE_1 0x83
|
|
#define SYNC_CODE_2 0x42
|
|
|
|
|
|
#endif // VP9_COMMON_VP9_COMMON_H_
|