text: /*
   * Copyright 2012 Google Inc.
   * 
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef __FM_CORE_H
  #define __FM_CORE_H
  
  #include "aligned_buf.h"
  
  struct FmOpParams {
    int32_t gain[2];
    int32_t freq;
    int32_t phase;
  };
  
  class FmCore {
   public:
    static void dump();
    void compute(int32_t *output, FmOpParams *params, int algorithm,
                 int32_t *fb_buf, int32_t feedback_gain);
   private:
    AlignedBuf<int32_t, N>buf_[2];
  };
  
  #endif  // __FM_CORE_H
  