1/* 2 * Copyright (c) 2015 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#ifndef VPX_DSP_COMMON_H_ 12#define VPX_DSP_COMMON_H_ 13 14#include "./vpx_config.h" 15#include "vpx/vpx_integer.h" 16#include "vpx_dsp/vpx_dsp_common.h" 17#include "vpx_ports/mem.h" 18 19#ifdef __cplusplus 20extern "C" { 21#endif 22 23#define VPXMIN(x, y) (((x) < (y)) ? (x) : (y)) 24#define VPXMAX(x, y) (((x) > (y)) ? (x) : (y)) 25 26#if CONFIG_VP9_HIGHBITDEPTH 27// Note: 28// tran_low_t is the datatype used for final transform coefficients. 29// tran_high_t is the datatype used for intermediate transform stages. 30typedef int64_t tran_high_t; 31typedef int32_t tran_low_t; 32#else 33// Note: 34// tran_low_t is the datatype used for final transform coefficients. 35// tran_high_t is the datatype used for intermediate transform stages. 36typedef int32_t tran_high_t; 37typedef int16_t tran_low_t; 38#endif // CONFIG_VP9_HIGHBITDEPTH 39 40static INLINE uint8_t clip_pixel(int val) { 41 return (val > 255) ? 255 : (val < 0) ? 0 : val; 42} 43 44static INLINE int clamp(int value, int low, int high) { 45 return value < low ? low : (value > high ? high : value); 46} 47 48static INLINE double fclamp(double value, double low, double high) { 49 return value < low ? low : (value > high ? high : value); 50} 51 52#if CONFIG_VP9_HIGHBITDEPTH 53static INLINE uint16_t clip_pixel_highbd(int val, int bd) { 54 switch (bd) { 55 case 8: 56 default: 57 return (uint16_t)clamp(val, 0, 255); 58 case 10: 59 return (uint16_t)clamp(val, 0, 1023); 60 case 12: 61 return (uint16_t)clamp(val, 0, 4095); 62 } 63} 64#endif // CONFIG_VP9_HIGHBITDEPTH 65 66#ifdef __cplusplus 67} // extern "C" 68#endif 69 70#endif // VPX_DSP_COMMON_H_ 71