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      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   static inline int32_t Fixed(int32_t integral, int32_t fractional) {
     35     return ((integral & 0xffff) << 16) | (fractional & 0xffff);
     36   }
     37 };
     38 
     39 }  // namespace sfntly
     40 
     41 #endif  // SFNTLY_CPP_SRC_SFNTLY_MATH_FIXED1616_H_
     42