diff options
author | Martin Capitanio <capnm@capitanio.org> | 2023-09-29 14:58:36 +0200 |
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committer | Martin Capitanio <capnm@capitanio.org> | 2023-09-29 19:50:19 +0200 |
commit | aab650f2ef97915e22312e5da543e01989bbfd76 (patch) | |
tree | 847d2e5c6033ab1d06122c57beefa6dc6c019aad /thirdparty/thorvg/src/common/tvgMath.cpp | |
parent | 19890614c6a78ec36030ce65c7da05f07fcdb9ed (diff) | |
download | redot-engine-aab650f2ef97915e22312e5da543e01989bbfd76.tar.gz |
ThorVG: update to v0.11.0 release.
See https://github.com/thorvg/thorvg/releases/tag/v0.11.0
+ Infrastructure
Repository folder structure was make it more intuitive and coherent.
"thorvg/src/lib" -> "thorvg/src/common"
(providing essential common functionalities
used internally among the renderer and sub-modules)
"thorvg/src/lib" -> "thorvg/src/renderer"
(for vector drawing features)
+ SVG related
Fix stroke regression https://github.com/thorvg/thorvg/issues/1670
Support stroke dash offset function https://github.com/thorvg/thorvg/issues/1591#issuecomment-1681319321
Support Focal property in Radial Gradient https://github.com/thorvg/thorvg/issues/1558
Diffstat (limited to 'thirdparty/thorvg/src/common/tvgMath.cpp')
-rw-r--r-- | thirdparty/thorvg/src/common/tvgMath.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/thirdparty/thorvg/src/common/tvgMath.cpp b/thirdparty/thorvg/src/common/tvgMath.cpp new file mode 100644 index 0000000000..a9463c8077 --- /dev/null +++ b/thirdparty/thorvg/src/common/tvgMath.cpp @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2021 - 2023 the ThorVG project. 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. + */ + +#include "tvgMath.h" + + +bool mathInverse(const Matrix* m, Matrix* out) +{ + auto det = m->e11 * (m->e22 * m->e33 - m->e32 * m->e23) - + m->e12 * (m->e21 * m->e33 - m->e23 * m->e31) + + m->e13 * (m->e21 * m->e32 - m->e22 * m->e31); + + if (mathZero(det)) return false; + + auto invDet = 1 / det; + + out->e11 = (m->e22 * m->e33 - m->e32 * m->e23) * invDet; + out->e12 = (m->e13 * m->e32 - m->e12 * m->e33) * invDet; + out->e13 = (m->e12 * m->e23 - m->e13 * m->e22) * invDet; + out->e21 = (m->e23 * m->e31 - m->e21 * m->e33) * invDet; + out->e22 = (m->e11 * m->e33 - m->e13 * m->e31) * invDet; + out->e23 = (m->e21 * m->e13 - m->e11 * m->e23) * invDet; + out->e31 = (m->e21 * m->e32 - m->e31 * m->e22) * invDet; + out->e32 = (m->e31 * m->e12 - m->e11 * m->e32) * invDet; + out->e33 = (m->e11 * m->e22 - m->e21 * m->e12) * invDet; + + return true; +} + + +Matrix mathMultiply(const Matrix* lhs, const Matrix* rhs) +{ + Matrix m; + + m.e11 = lhs->e11 * rhs->e11 + lhs->e12 * rhs->e21 + lhs->e13 * rhs->e31; + m.e12 = lhs->e11 * rhs->e12 + lhs->e12 * rhs->e22 + lhs->e13 * rhs->e32; + m.e13 = lhs->e11 * rhs->e13 + lhs->e12 * rhs->e23 + lhs->e13 * rhs->e33; + + m.e21 = lhs->e21 * rhs->e11 + lhs->e22 * rhs->e21 + lhs->e23 * rhs->e31; + m.e22 = lhs->e21 * rhs->e12 + lhs->e22 * rhs->e22 + lhs->e23 * rhs->e32; + m.e23 = lhs->e21 * rhs->e13 + lhs->e22 * rhs->e23 + lhs->e23 * rhs->e33; + + m.e31 = lhs->e31 * rhs->e11 + lhs->e32 * rhs->e21 + lhs->e33 * rhs->e31; + m.e32 = lhs->e31 * rhs->e12 + lhs->e32 * rhs->e22 + lhs->e33 * rhs->e32; + m.e33 = lhs->e31 * rhs->e13 + lhs->e32 * rhs->e23 + lhs->e33 * rhs->e33; + + return m; +} + + +void mathRotate(Matrix* m, float degree) +{ + if (degree == 0.0f) return; + + auto radian = degree / 180.0f * M_PI; + auto cosVal = cosf(radian); + auto sinVal = sinf(radian); + + m->e12 = m->e11 * -sinVal; + m->e11 *= cosVal; + m->e21 = m->e22 * sinVal; + m->e22 *= cosVal; +} + + +bool mathIdentity(const Matrix* m) +{ + if (m->e11 != 1.0f || m->e12 != 0.0f || m->e13 != 0.0f || + m->e21 != 0.0f || m->e22 != 1.0f || m->e23 != 0.0f || + m->e31 != 0.0f || m->e32 != 0.0f || m->e33 != 1.0f) { + return false; + } + return true; +} + + +void mathMultiply(Point* pt, const Matrix* transform) +{ + auto tx = pt->x * transform->e11 + pt->y * transform->e12 + transform->e13; + auto ty = pt->x * transform->e21 + pt->y * transform->e22 + transform->e23; + pt->x = tx; + pt->y = ty; +} |