coral / mtk-gst-plugins-bad-debian / 543e3a3e468572edb15814e903a804d8912ae18c / . / gst / geometrictransform / geometricmath.h

/* | |

* GStreamer | |

* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk> | |

* | |

* Permission is hereby granted, free of charge, to any person obtaining a | |

* copy of this software and associated documentation files (the "Software"), | |

* to deal in the Software without restriction, including without limitation | |

* the rights to use, copy, modify, merge, publish, distribute, sublicense, | |

* and/or sell copies of the Software, and to permit persons to whom the | |

* Software is furnished to do so, subject to the following conditions: | |

* | |

* The above copyright notice and this permission notice shall be included in | |

* all copies or substantial portions of the Software. | |

* | |

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |

* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |

* DEALINGS IN THE SOFTWARE. | |

* | |

* Alternatively, the contents of this file may be used under the | |

* GNU Lesser General Public License Version 2.1 (the "LGPL"), in | |

* which case the following provisions apply instead of the ones | |

* mentioned above: | |

* | |

* 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. | |

*/ | |

/* | |

* Thanks to Jerry Huxtable <http://www.jhlabs.com> work on its java | |

* image editor and filters. The algorithms here were extracted from | |

* his code. | |

*/ | |

#ifndef __GEOMETRIC_MATH_H__ | |

#define __GEOMETRIC_MATH_H__ | |

#include <gst/gst.h> | |

G_BEGIN_DECLS | |

typedef struct _Noise Noise; | |

Noise * noise_new (void); | |

void noise_free (Noise * noise); | |

gdouble noise_2 (Noise * noise, gdouble x, gdouble y); | |

gdouble mod_float (gdouble a, gdouble b); | |

gdouble geometric_math_triangle (gdouble x); | |

gdouble smoothstep (gdouble edge0, gdouble edge1, gdouble x); | |

G_END_DECLS | |

#endif /* __GEOMETRIC_MATH_H__ */ |