141 lines
5.0 KiB
C
141 lines
5.0 KiB
C
/****************************************************************************
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* graphics/nxbe/nxbe_redraw.c
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*
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* Copyright (C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nxglib.h>
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#include "nxbe.h"
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#include "nxfe.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct nxbe_redraw_s
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{
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struct nxbe_clipops_s cops;
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FAR struct nxbe_window_s *wnd;
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};
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxbe_clipredraw
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****************************************************************************/
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static void nxbe_clipredraw(FAR struct nxbe_clipops_s *cops,
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FAR struct nxbe_plane_s *plane,
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FAR const struct nxgl_rect_s *rect)
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{
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FAR struct nxbe_window_s *wnd = ((struct nxbe_redraw_s *)cops)->wnd;
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if (wnd)
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{
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nxfe_redrawreq(wnd, rect);
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}
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxbe_redraw
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*
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* Descripton:
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* Re-draw the visible portions of the rectangular region for the
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* specified window
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*
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****************************************************************************/
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void nxbe_redraw(FAR struct nxbe_state_s *be,
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FAR struct nxbe_window_s *wnd,
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FAR const struct nxgl_rect_s *rect)
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{
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struct nxbe_redraw_s info;
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struct nxgl_rect_s remaining;
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#if CONFIG_NX_NPLANES > 1
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int i;
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#endif
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/* Clip to the limits of the window and of the background screen */
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nxgl_rectintersect(&remaining, rect, &be->bkgd.bounds);
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nxgl_rectintersect(&remaining, &remaining, &wnd->bounds);
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if (!nxgl_nullrect(&remaining))
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{
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/* Now, request to re-draw any visible rectangular regions not obscured
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* by windows above this one.
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*/
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info.cops.visible = nxbe_clipredraw;
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info.cops.obscured = nxbe_clipnull;
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info.wnd = wnd;
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#if CONFIG_NX_NPLANES > 1
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for (i = 0; i < be->vinfo.nplanes; i++)
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{
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nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT,
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&info.cops, &be->plane[i]);
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}
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#else
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nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT,
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&info.cops, &be->plane[0]);
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#endif
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}
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}
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