//----------------------------------------------------------------------------- // Copyright (c) 2013 GarageGames, LLC // // 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 "math/mMathFn.h" #include "math/mPlane.h" #include "math/mMatrix.h" void mTransformPlane(const MatrixF& mat, const Point3F& scale, const PlaneF& plane, PlaneF* result) { m_matF_x_scale_x_planeF(mat, &scale.x, &plane.x, &result->x); } //-------------------------------------- U32 getNextPow2(U32 io_num) { S32 oneCount = 0; S32 shiftCount = -1; while (io_num) { if(io_num & 1) oneCount++; shiftCount++; io_num >>= 1; } if(oneCount > 1) shiftCount++; return U32(1 << shiftCount); } //-------------------------------------- U32 getBinLog2(U32 io_num) { AssertFatal(io_num != 0 && isPow2(io_num) == true, "Error, this only works on powers of 2 > 0"); S32 shiftCount = 0; while (io_num) { shiftCount++; io_num >>= 1; } return U32(shiftCount - 1); }