coral / imx-gst-plugins-good / d0cf0972dea63019c26eb68060d25e1e1bc947ee / . / gst / audiofx / math_compat.h

/* | |

* GStreamer | |

* Copyright (C) 2008 Sebastian DrĂ¶ge <slomo@circular-chaos.org> | |

* | |

* This library is free software; you can redistribute it and/or | |

* modify it under the terms of the GNU Library General Public | |

* License as published by the Free Software Foundation; either | |

* version 2 of the License, or (at your option) any later version. | |

* | |

* This library is distributed in the hope that it will be useful, | |

* but WITHOUT ANY WARRANTY; without even the implied warranty of | |

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |

* Library General Public License for more details. | |

* | |

* You should have received a copy of the GNU Library General Public | |

* License along with this library; if not, write to the | |

* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, | |

* Boston, MA 02110-1301, USA. | |

*/ | |

#ifndef __MATH_COMPAT_H__ | |

#define __MATH_COMPAT_H__ | |

#ifdef HAVE_CONFIG_H | |

#include "config.h" | |

#endif | |

#include <glib.h> | |

#include <math.h> | |

#ifndef HAVE_ASINH | |

static inline gdouble | |

asinh (gdouble x) | |

{ | |

return log(x + sqrt (x * x + 1)); | |

} | |

#endif | |

#ifndef HAVE_SINH | |

static inline gdouble | |

sinh (gdouble x) | |

{ | |

return 0.5 * (exp (x) - exp (-x)); | |

} | |

#endif | |

#ifndef HAVE_COSH | |

static inline gdouble | |

cosh (gdouble x) | |

{ | |

return 0.5 * (exp (x) + exp (-x)); | |

} | |

#endif | |

#endif /* __MATH_COMPAT_H__ */ |