diff options
Diffstat (limited to 'nuttx/graphics/nxglib/nxglib_nonintersecting.c')
| -rw-r--r-- | nuttx/graphics/nxglib/nxglib_nonintersecting.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/nuttx/graphics/nxglib/nxglib_nonintersecting.c b/nuttx/graphics/nxglib/nxglib_nonintersecting.c deleted file mode 100644 index d78da994e..000000000 --- a/nuttx/graphics/nxglib/nxglib_nonintersecting.c +++ /dev/null @@ -1,151 +0,0 @@ -/**************************************************************************** - * graphics/nxglib/nxsglib_rectnonintersecting.c - * - * Copyright (C) 2008-2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <nuttx/nx/nxglib.h> - -/**************************************************************************** - * Pre-Processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Public Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: nxgl_nonintersecting - * - * Description: - * Return the regions of rectangle rect 1 that do not intersect with - * rect2. This may be up to founr rectangles some of which may be - * degenerate (and can be picked off with nxgl_nullrect) - * - ****************************************************************************/ - -void nxgl_nonintersecting(FAR struct nxgl_rect_s result[4], - FAR const struct nxgl_rect_s *rect1, - FAR const struct nxgl_rect_s *rect2) -{ - struct nxgl_rect_s intersection; - - /* Get the intersection of the two rectangles */ - - nxgl_rectintersect(&intersection, rect1, rect2); - - /* Then return the four rectangles representing the regions NON included - * in the intersection. Some of these rectangles may be invalid (zero - * area), but those can be picked off using nxgl_nullrect() - * - * rect1.pt1 - * +-------------------------+ - * | rect2.pt1 | - * | int.pt1 | - * | +-------------------------+ - * | | | | - * | | | | - * +-------------------------+ | - * | rect1.pt2 | - * | int.pt2 | - * +-------------------------+ - * rect2.pt2 - * rect1.pt1 - * +-------------------------+ - * rect2.pt1 |int.pt1 | - * +---------+---------------+ | - * | | | | - * | | | | - * | | |int.pt2 | - * | +---------------+---------+ - * | | rect1.pt2 - * +-------------------------+ - * rect2.pt2 - * rect2.pt1 - * +-------------------------+ - * | rect1.pt1 | - * | int.pt1 | - * | +-------------------------+ - * | | | | - * | | | | - * | | | | - * +---------+---------------+ | - * | rect2.pt2 | - * | int.pt2 | - * +-------------------------+ - * rect1.pt2 - */ - - result[NX_TOP_NDX].pt1.x = rect1->pt1.x; - result[NX_TOP_NDX].pt1.y = rect1->pt1.y; - result[NX_TOP_NDX].pt2.x = rect1->pt2.x; - result[NX_TOP_NDX].pt2.y = intersection.pt1.y - 1; - - result[NX_BOTTOM_NDX].pt1.x = rect1->pt1.x; - result[NX_BOTTOM_NDX].pt1.y = intersection.pt2.y + 1; - result[NX_BOTTOM_NDX].pt2.x = rect1->pt2.x; - result[NX_BOTTOM_NDX].pt2.y = rect1->pt2.y; - - result[NX_LEFT_NDX].pt1.x = rect1->pt1.x; - result[NX_LEFT_NDX].pt1.y = intersection.pt1.y; - result[NX_LEFT_NDX].pt2.x = intersection.pt1.x - 1; - result[NX_LEFT_NDX].pt2.y = intersection.pt2.y; - - result[NX_RIGHT_NDX].pt1.x = intersection.pt2.x + 1; - result[NX_RIGHT_NDX].pt1.y = intersection.pt1.y; - result[NX_RIGHT_NDX].pt2.x = rect1->pt2.x; - result[NX_RIGHT_NDX].pt2.y = intersection.pt2.y; -} - - |