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/****************************************************************************
* graphics/nxbe/nxbe_redraw.c
*
* Copyright (C) 2008-2009, 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"
#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
}
}
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