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/*
* Copyright (c) 2015 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 VPX_VPX_DSP_VPX_DSP_COMMON_H_
#define VPX_VPX_DSP_VPX_DSP_COMMON_H_
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_ports/mem.h"
#ifdef __cplusplus
extern "C" {
#endif
#define VPXMIN(x, y) (((x) < (y)) ? (x) : (y))
#define VPXMAX(x, y) (((x) > (y)) ? (x) : (y))
#define VPX_SWAP(type, a, b) \
do { \
type c = (b); \
(b) = a; \
(a) = c; \
} while (0)
#if CONFIG_VP9_HIGHBITDEPTH
// Note:
// tran_low_t is the datatype used for final transform coefficients.
// tran_high_t is the datatype used for intermediate transform stages.
typedef int64_t tran_high_t;
typedef int32_t tran_low_t;
#else
// Note:
// tran_low_t is the datatype used for final transform coefficients.
// tran_high_t is the datatype used for intermediate transform stages.
typedef int32_t tran_high_t;
typedef int16_t tran_low_t;
#endif // CONFIG_VP9_HIGHBITDEPTH
typedef int16_t tran_coef_t;
static INLINE uint8_t clip_pixel(int val) {
return (val > 255) ? 255 : (val < 0) ? 0 : 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 uint16_t clip_pixel_highbd(int val, int bd) {
switch (bd) {
case 8:
default: return (uint16_t)clamp(val, 0, 255);
case 10: return (uint16_t)clamp(val, 0, 1023);
case 12: return (uint16_t)clamp(val, 0, 4095);
}
}
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_VPX_DSP_VPX_DSP_COMMON_H_