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Diffstat (limited to 'nuttx/graphics/nxbe/nxbe_redraw.c')
-rw-r--r-- | nuttx/graphics/nxbe/nxbe_redraw.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/nuttx/graphics/nxbe/nxbe_redraw.c b/nuttx/graphics/nxbe/nxbe_redraw.c new file mode 100644 index 000000000..3226ccf32 --- /dev/null +++ b/nuttx/graphics/nxbe/nxbe_redraw.c @@ -0,0 +1,139 @@ +/**************************************************************************** + * graphics/nxbe/nxbe_redraw.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 <errno.h> +#include <debug.h> + +#include <nuttx/nx/nxglib.h> + +#include "nxbe.h" +#include "nxfe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct nxbe_redraw_s +{ + struct nxbe_clipops_s cops; + FAR struct nxbe_window_s *wnd; +}; + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxbe_clipredraw + ****************************************************************************/ + +static void nxbe_clipredraw(FAR struct nxbe_clipops_s *cops, + FAR struct nxbe_plane_s *plane, + FAR const struct nxgl_rect_s *rect) +{ + FAR struct nxbe_window_s *wnd = ((struct nxbe_redraw_s *)cops)->wnd; + if (wnd) + { + nxfe_redrawreq(wnd, rect); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxbe_redraw + * + * Descripton: + * Re-draw the visible portions of the rectangular region for the + * specified window + * + ****************************************************************************/ + +void nxbe_redraw(FAR struct nxbe_state_s *be, + FAR struct nxbe_window_s *wnd, + FAR const struct nxgl_rect_s *rect) +{ + struct nxbe_redraw_s info; + struct nxgl_rect_s remaining; +#if CONFIG_NX_NPLANES > 1 + int i; +#endif + + /* Clip to the limits of the window and of the background screen */ + + nxgl_rectintersect(&remaining, rect, &be->bkgd.bounds); + nxgl_rectintersect(&remaining, &remaining, &wnd->bounds); + if (!nxgl_nullrect(&remaining)) + { + /* Now, request to re-draw any visible rectangular regions not obscured + * by windows above this one. + */ + + info.cops.visible = nxbe_clipredraw; + info.cops.obscured = nxbe_clipnull; + info.wnd = wnd; + +#if CONFIG_NX_NPLANES > 1 + for (i = 0; i < be->vinfo.nplanes; i++) + { + nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT, + &info.cops, &be->plane[i]); + } +#else + nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT, + &info.cops, &be->plane[0]); +#endif + } +} |