diff options
Diffstat (limited to 'nuttx/graphics/nxglib/nxglib_runoffset.c')
-rw-r--r-- | nuttx/graphics/nxglib/nxglib_runoffset.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/nuttx/graphics/nxglib/nxglib_runoffset.c b/nuttx/graphics/nxglib/nxglib_runoffset.c new file mode 100644 index 000000000..f66d73674 --- /dev/null +++ b/nuttx/graphics/nxglib/nxglib_runoffset.c @@ -0,0 +1,85 @@ +/**************************************************************************** + * graphics/nxglib/nxsglib_runoffset.c + * + * Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <fixedmath.h> +#include <nuttx/nx/nxglib.h> + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_runoffset + * + * Description: + * Offset the run position by the specified (integer) dx, dy values. + * + ****************************************************************************/ + +void nxgl_runoffset(FAR struct nxgl_run_s *dest, + FAR const struct nxgl_run_s *src, + nxgl_coord_t dx, nxgl_coord_t dy) +{ + b16_t b16dx = itob16(dx); + dest->x1 = src->x1 + b16dx; + dest->x2 = src->x2 + b16dx; + dest->y = src->y + dy; +} |