Line data    Source code

       1             : /*
       2             :  * Copyright 2011 Google Inc. All Rights Reserved.
       3             :  *
       4             :  * Licensed under the Apache License, Version 2.0 (the "License");
       5             :  * you may not use this file except in compliance with the License.
       6             :  * You may obtain a copy of the License at
       7             :  *
       8             :  *      http://www.apache.org/licenses/LICENSE-2.0
       9             :  *
      10             :  * Unless required by applicable law or agreed to in writing, software
      11             :  * distributed under the License is distributed on an "AS IS" BASIS,
      12             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      13             :  * See the License for the specific language governing permissions and
      14             :  * limitations under the License.
      15             :  */
      16             : 
      17             : #ifndef SFNTLY_CPP_SRC_SFNTLY_MATH_FIXED1616_H_
      18             : #define SFNTLY_CPP_SRC_SFNTLY_MATH_FIXED1616_H_
      19             : 
      20             : #include "sfntly/port/type.h"
      21             : 
      22             : namespace sfntly {
      23             : 
      24             : class Fixed1616 {
      25             :  public:
      26             :   static inline int32_t Integral(int32_t fixed) {
      27             :     return (fixed >> 16);
      28             :   }
      29             : 
      30             :   static inline int32_t Fractional(int32_t fixed) {
      31             :     return (fixed & 0xffff);
      32             :   }
      33             : 
      34           0 :   static inline int32_t Fixed(int32_t integral, int32_t fractional) {
      35           0 :     return ((integral & 0xffff) << 16) | (fractional & 0xffff);
      36             :   }
      37             : };
      38             : 
      39             : }  // namespace sfntly
      40             : 
      41             : #endif  // SFNTLY_CPP_SRC_SFNTLY_MATH_FIXED1616_H_