/*
 * Copyright (C) 2015-2017 Intel Corporation
 * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
 *
 * 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 _CAMERA3_RKISP2FecUnit_H_
#define _CAMERA3_RKISP2FecUnit_H_

#include <memory>
#include <mutex>

namespace android {
namespace camera2 {
namespace rkisp2 {

using __createGLClass = void* (*)();
using __distortionByGpuInit = int (*)(void *p, int sw, int sh, int mapw, int maph);
using __distortionByGpuDeinit = int (*)(void *p);
using __distortionByGpuProcess = void (*)(void *p, int inputfd, int inWidth,
                                          int inHeight, int outputfd,
                                          int outWidth, int outHeigh);
using __createFenceFd = int (*)(void *p);
using __distortionByGpuSyncFenceFd = int (*)(void *p);

class RKISP2FecUnit {
private:
  void loadDistortionGlLibray();

  void *glClass;
  void *dso;
  int done_init;
  int width_;
  int height_;
  mutable std::mutex mtx;
  //static RKISP2FecUnit *mInstance;

  __createGLClass createGLClass;
  __createFenceFd createFenceFd;
  __distortionByGpuInit distortionByGpuInit;
  __distortionByGpuDeinit distortionByGpuDeinit;
  __distortionByGpuSyncFenceFd distortionSyncFenceFd;
  __distortionByGpuProcess distortionByGpuProcess;

public:
  RKISP2FecUnit();
  ~RKISP2FecUnit();
  void calculateMeshGridSize(int width, int height, int &meshW, int& meshH);
  int doFecProcess(int inW, int inH, int inFd, int outW, int outH, int outFd, int& fenceFd);
  int distortionInit(int width, int height);
  int distortionDeinit();

//  static RKISP2FecUnit *getInstance();

};

} // namespace rkisp2
} // namespace camera2
} // namespace android
#endif