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Java example source code file (ParallelogramUtils.h)
The ParallelogramUtils.h Java example source code/* * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ #ifndef ParallelogramUtils_h_Included #define ParallelogramUtils_h_Included #ifdef __cplusplus extern "C" { #endif #define PGRAM_MIN_MAX(bmin, bmax, v0, dv1, dv2, AA) \ do { \ double vmin, vmax; \ if (dv1 < 0) { \ vmin = v0+dv1; \ vmax = v0; \ } else { \ vmin = v0; \ vmax = v0+dv1; \ } \ if (dv2 < 0) { \ vmin += dv2; \ } else { \ vmax += dv2; \ } \ if (AA) { \ bmin = (jint) floor(vmin); \ bmax = (jint) ceil(vmax); \ } else { \ bmin = (jint) floor(vmin + 0.5); \ bmax = (jint) floor(vmax + 0.5); \ } \ } while(0) #define PGRAM_INIT_X(starty, x, y, slope) \ (DblToLong((x) + (slope) * ((starty)+0.5 - (y))) + LongOneHalf - 1) /* * Sort parallelogram by y values, ensure that each delta vector * has a non-negative y delta. */ #define SORT_PGRAM(x0, y0, dx1, dy1, dx2, dy2, OTHER_SWAP_CODE) \ do { \ if (dy1 < 0) { \ x0 += dx1; y0 += dy1; \ dx1 = -dx1; dy1 = -dy1; \ } \ if (dy2 < 0) { \ x0 += dx2; y0 += dy2; \ dx2 = -dx2; dy2 = -dy2; \ } \ /* Sort delta vectors so dxy1 is left of dxy2. */ \ if (dx1 * dy2 > dx2 * dy1) { \ double v; \ v = dx1; dx1 = dx2; dx2 = v; \ v = dy1; dy1 = dy2; dy2 = v; \ OTHER_SWAP_CODE \ } \ } while(0) #endif /* ParallelogramUtils_h_Included */ Other Java examples (source code examples)Here is a short list of links related to this Java ParallelogramUtils.h source code file: |
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