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d2d1: Implement D2D1MakeRotateMatrix().
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@ -1,5 +1,5 @@
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@ stdcall D2D1CreateFactory(long ptr ptr ptr)
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@ stub D2D1MakeRotateMatrix
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@ stdcall D2D1MakeRotateMatrix(float float float ptr)
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@ stub D2D1MakeSkewMatrix
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@ stub D2D1IsMatrixInvertible
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@ stub D2D1InvertMatrix
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@ -264,3 +264,22 @@ HRESULT WINAPI D2D1CreateFactory(D2D1_FACTORY_TYPE factory_type, REFIID iid,
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return hr;
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}
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void WINAPI D2D1MakeRotateMatrix(float angle, D2D1_POINT_2F center, D2D1_MATRIX_3X2_F *matrix)
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{
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float theta, sin_theta, cos_theta;
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TRACE("angle %.8e, center {%.8e, %.8e}, matrix %p.\n", angle, center.x, center.y, matrix);
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theta = angle * (M_PI / 180.0f);
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sin_theta = sinf(theta);
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cos_theta = cosf(theta);
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/* translate(center) * rotate(theta) * translate(-center) */
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matrix->_11 = cos_theta;
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matrix->_12 = sin_theta;
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matrix->_21 = -sin_theta;
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matrix->_22 = cos_theta;
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matrix->_31 = center.x - center.x * cos_theta + center.y * sin_theta;
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matrix->_32 = center.y - center.x * sin_theta - center.y * cos_theta;
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}
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@ -1248,3 +1248,4 @@ interface ID2D1Factory : IUnknown
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[local] HRESULT __stdcall D2D1CreateFactory(D2D1_FACTORY_TYPE factory_type, REFIID iid,
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const D2D1_FACTORY_OPTIONS *factory_options, void **factory);
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[local] void __stdcall D2D1MakeRotateMatrix(float angle, D2D1_POINT_2F center, D2D1_MATRIX_3X2_F *matrix);
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