Line data    Source code

       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_VPX_DSP_COMMON_H_
      12             : #define VPX_DSP_VPX_DSP_COMMON_H_
      13             : 
      14             : #include "./vpx_config.h"
      15             : #include "vpx/vpx_integer.h"
      16             : #include "vpx_ports/mem.h"
      17             : 
      18             : #ifdef __cplusplus
      19             : extern "C" {
      20             : #endif
      21             : 
      22             : #define VPXMIN(x, y) (((x) < (y)) ? (x) : (y))
      23             : #define VPXMAX(x, y) (((x) > (y)) ? (x) : (y))
      24             : 
      25             : #define VPX_SWAP(type, a, b) \
      26             :   do {                       \
      27             :     type c = (b);            \
      28             :     b = a;                   \
      29             :     a = c;                   \
      30             :   } while (0)
      31             : 
      32             : #if CONFIG_VP9_HIGHBITDEPTH
      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.
      36             : typedef int64_t tran_high_t;
      37             : typedef int32_t tran_low_t;
      38             : #else
      39             : // Note:
      40             : // tran_low_t  is the datatype used for final transform coefficients.
      41             : // tran_high_t is the datatype used for intermediate transform stages.
      42             : typedef int32_t tran_high_t;
      43             : typedef int16_t tran_low_t;
      44             : #endif  // CONFIG_VP9_HIGHBITDEPTH
      45             : 
      46           0 : static INLINE uint8_t clip_pixel(int val) {
      47           0 :   return (val > 255) ? 255 : (val < 0) ? 0 : val;
      48             : }
      49             : 
      50           0 : static INLINE int clamp(int value, int low, int high) {
      51           0 :   return value < low ? low : (value > high ? high : value);
      52             : }
      53             : 
      54           0 : static INLINE double fclamp(double value, double low, double high) {
      55           0 :   return value < low ? low : (value > high ? high : value);
      56             : }
      57             : 
      58             : #if CONFIG_VP9_HIGHBITDEPTH
      59             : static INLINE uint16_t clip_pixel_highbd(int val, int bd) {
      60             :   switch (bd) {
      61             :     case 8:
      62             :     default: return (uint16_t)clamp(val, 0, 255);
      63             :     case 10: return (uint16_t)clamp(val, 0, 1023);
      64             :     case 12: return (uint16_t)clamp(val, 0, 4095);
      65             :   }
      66             : }
      67             : #endif  // CONFIG_VP9_HIGHBITDEPTH
      68             : 
      69             : #ifdef __cplusplus
      70             : }  // extern "C"
      71             : #endif
      72             : 
      73             : #endif  // VPX_DSP_VPX_DSP_COMMON_H_