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Diffstat (limited to 'thirdparty/thorvg/src/lib/tvgBezier.h')
-rw-r--r-- | thirdparty/thorvg/src/lib/tvgBezier.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/thirdparty/thorvg/src/lib/tvgBezier.h b/thirdparty/thorvg/src/lib/tvgBezier.h new file mode 100644 index 0000000000..866e39148e --- /dev/null +++ b/thirdparty/thorvg/src/lib/tvgBezier.h @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2020-2021 Samsung Electronics Co., Ltd. All rights reserved. + + * 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. + */ +#ifndef _TVG_BEZIER_H_ +#define _TVG_BEZIER_H_ + +#include "tvgCommon.h" + +namespace tvg +{ + +#define BEZIER_EPSILON 1e-4f + +struct Bezier +{ + Point start; + Point ctrl1; + Point ctrl2; + Point end; +}; + +void bezSplit(const Bezier&cur, Bezier& left, Bezier& right); +float bezLength(const Bezier& cur); +void bezSplitLeft(Bezier& cur, float at, Bezier& left); +float bezAt(const Bezier& bz, float at); +void bezSplitAt(const Bezier& cur, float at, Bezier& left, Bezier& right); + +} + +#endif //_TVG_BEZIER_H_ |