mirror of https://github.com/axmolengine/axmol.git
49 lines
2.0 KiB
C++
49 lines
2.0 KiB
C++
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/****************************************************************************
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Copyright (c) 2010-2011 cocos2d-x.org
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Copyright (c) 2009 Valentin Milea
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "TransformUtils.h"
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#include "CCAffineTransform.h"
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namespace cocos2d {
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void CGAffineToGL(const CCAffineTransform *t, GLfloat *m)
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{
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// | m[0] m[4] m[8] m[12] | | m11 m21 m31 m41 | | a c 0 tx |
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// | m[1] m[5] m[9] m[13] | | m12 m22 m32 m42 | | b d 0 ty |
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// | m[2] m[6] m[10] m[14] | <=> | m13 m23 m33 m43 | <=> | 0 0 1 0 |
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// | m[3] m[7] m[11] m[15] | | m14 m24 m34 m44 | | 0 0 0 1 |
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m[2] = m[3] = m[6] = m[7] = m[8] = m[9] = m[11] = m[14] = 0.0f;
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m[10] = m[15] = 1.0f;
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m[0] = t->a; m[4] = t->c; m[12] = t->tx;
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m[1] = t->b; m[5] = t->d; m[13] = t->ty;
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}
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void GLToCGAffine(const GLfloat *m, CCAffineTransform *t)
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{
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t->a = m[0]; t->c = m[4]; t->tx = m[12];
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t->b = m[1]; t->d = m[5]; t->ty = m[13];
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}
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}//namespace cocos2d
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