diff options
Diffstat (limited to 'nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c')
-rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c new file mode 100644 index 000000000..9318426ba --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c @@ -0,0 +1,105 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_getrectangle.c + * + * Copyright (C) 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 <stdint.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_moverectangle_*bpp + * + * Descripton: + * Fetch a rectangular region from LCD GRAM memory. The source is + * expressed as a rectangle. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_getrectangle,NXGLIB_SUFFIX) +(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *rect, + FAR void *dest, unsigned int deststride) +{ + FAR uint8_t *dline; + unsigned int ncols; + unsigned int srcrow; + + /* Get the width of the rectange to move in pixels. */ + + ncols = rect->pt2.x - rect->pt1.x + 1; + + /* dline = address of the first row pixel */ + + dline = (FAR uint8_t *)dest; + + /* Copy the rectangle */ + + for (srcrow = rect->pt1.y; srcrow <= rect->pt2.y; srcrow++) + { + (void)pinfo->getrun(srcrow, rect->pt1.x, dline, ncols); + dline += deststride; + } +} |