/* * Mesa 3-D graphics library * Version: 3.3 * * Copyright (C) 1999-2000 Brian Paul 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 * BRIAN PAUL 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. */ /* * New (3.1) transformation code written by Keith Whitwell. */ #define PLANE CLIP_RIGHT_BIT #define CLIP_DOTPROD(K) (- X(K) + W(K)) GENERAL_CLIP #undef CLIP_DOTPROD #undef PLANE #define PLANE CLIP_LEFT_BIT #define CLIP_DOTPROD(K) (X(K) + W(K)) GENERAL_CLIP #undef CLIP_DOTPROD #undef PLANE #define PLANE CLIP_TOP_BIT #define CLIP_DOTPROD(K) (- Y(K) + W(K)) GENERAL_CLIP #undef CLIP_DOTPROD #undef PLANE #define PLANE CLIP_BOTTOM_BIT #define CLIP_DOTPROD(K) (Y(K) + W(K)) GENERAL_CLIP #undef CLIP_DOTPROD #undef PLANE #define PLANE CLIP_FAR_BIT #define CLIP_DOTPROD(K) (- Z(K) + W(K)) if (SIZE >= 3) { GENERAL_CLIP } #undef CLIP_DOTPROD #undef PLANE #define PLANE CLIP_NEAR_BIT #define CLIP_DOTPROD(K) (Z(K) + W(K)) if (SIZE >=3 ) { GENERAL_CLIP } #undef CLIP_DOTPROD #undef PLANE #undef GENERAL_CLIP