diff options
Diffstat (limited to 'nuttx/graphics/nxbe/nxbe_getrectangle.c')
-rw-r--r-- | nuttx/graphics/nxbe/nxbe_getrectangle.c | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/nuttx/graphics/nxbe/nxbe_getrectangle.c b/nuttx/graphics/nxbe/nxbe_getrectangle.c new file mode 100644 index 000000000..84f010cd5 --- /dev/null +++ b/nuttx/graphics/nxbe/nxbe_getrectangle.c @@ -0,0 +1,138 @@ +/**************************************************************************** + * graphics/nxbe/nxbe_fill.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 <errno.h> +#include <debug.h> + +#include <nuttx/nx/nxglib.h> + +#include "nxbe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct nxbe_fill_s +{ + struct nxbe_clipops_s cops; + nxgl_mxpixel_t color; +}; + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxbe_getrectangle + * + * Description: + * Get the raw contents of graphic memory within a rectangular region. NOTE: + * Since raw graphic memory is returned, the returned memory content may be + * the memory of windows above this one and may not necessarily belong to + * this window unless you assure that this is the top window. + * + * Input Parameters: + * wnd - The window structure reference + * rect - The location to be copied + * plane - Specifies the color plane to get from. + * dest - The location to copy the memory region + * deststride - The width, in bytes, the the dest memory + * + * Return: + * None + * + ****************************************************************************/ + +void nxbe_getrectangle(FAR struct nxbe_window_s *wnd, + FAR const struct nxgl_rect_s *rect, unsigned int plane, + FAR uint8_t *dest, unsigned int deststride) +{ + struct nxgl_rect_s remaining; + +#ifdef CONFIG_DEBUG + if (!wnd || !rect || ! rect || plane >= wnd->be->vinfo.nplanes) + { + gvdbg("Invalid parameters\n"); + return; + } +#endif + + /* Offset the rectangle by the window origin to convert it into a + * bounding box + */ + + nxgl_rectoffset(&remaining, rect, wnd->bounds.pt1.x, wnd->bounds.pt1.y); + + /* Clip to the bounding box to the limits of the window and of the + * background screen + */ + + nxgl_rectintersect(&remaining, &remaining, &wnd->bounds); + nxgl_rectintersect(&remaining, &remaining, &wnd->be->bkgd.bounds); + + /* The return the graphics memory at this location. NOTE: Since raw + * graphic memory is returned, the returned memory content may be + * the memory of windows above this one and may not necessarily belong + * to this window. + */ + + if (!nxgl_nullrect(&remaining)) + { + FAR struct nxbe_plane_s *pplane = &wnd->be->plane[plane]; + pplane->getrectangle(&pplane->pinfo, &remaining, dest, deststride); + } +} |