| /* |
| * 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_DSP_VPX_DSP_COMMON_H_ |
| #define 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)) |
| |
| #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 |
| |
| 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); |
| } |
| |
| #if CONFIG_VP9_HIGHBITDEPTH |
| 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); |
| } |
| } |
| #endif // CONFIG_VP9_HIGHBITDEPTH |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // VPX_DSP_VPX_DSP_COMMON_H_ |