244 lines
8.7 KiB
C
244 lines
8.7 KiB
C
/****************************************************************************
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* graphics/nxbe/nxbe_getrectangle.c
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*
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* Copyright (C) 2011, 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nx/nxglib.h>
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#include "nxbe.h"
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct nxbe_fill_s
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{
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struct nxbe_clipops_s cops;
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nxgl_mxpixel_t color;
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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_getrectangle_dev
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*
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* Description:
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* Get the raw contents of graphic memory within a rectangular region. NOTE:
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* Since raw graphic memory is returned, the returned memory content may be
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* the memory of windows above this one and may not necessarily belong to
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* this window unless you assure that this is the top window.
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*
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* Input Parameters:
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* wnd - The window structure reference
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* rect - The location to be copied
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* plane - Specifies the color plane to get from.
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* dest - The location to copy the memory region
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* deststride - The width, in bytes, of the dest memory
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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static inline void nxbe_getrectangle_dev(FAR struct nxbe_window_s *wnd,
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FAR const struct nxgl_rect_s *rect,
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unsigned int plane,
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FAR uint8_t *dest,
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unsigned int deststride)
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{
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FAR struct nxbe_plane_s *pplane = &wnd->be->plane[plane];
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DEBUGASSERT(pplane != NULL && pplane->dev.getrectangle != NULL);
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pplane->dev.getrectangle(&pplane->pinfo, rect, dest, deststride);
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}
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/****************************************************************************
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* Name: nxbe_getrectangle_pwfb
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*
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* Description:
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* Get the contents of pre-window framebuffer graphic memory within a
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* rectangular region.
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*
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* Input Parameters:
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* wnd - The window structure reference
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* rect - The location to be copied (in device coordinates, clipped)
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* plane - Specifies the color plane to get from.
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* dest - The location to copy the memory region
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* deststride - The width, in bytes, of the dest memory
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_NX_RAMBACKED
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static inline void nxbe_getrectangle_pwfb(FAR struct nxbe_window_s *wnd,
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FAR const struct nxgl_rect_s *rect,
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unsigned int plane,
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FAR uint8_t *dest,
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unsigned int deststride)
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{
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FAR struct nxbe_plane_s *pplane = &wnd->be->plane[plane];
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struct nxgl_rect_s relrect;
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DEBUGASSERT(pplane != NULL && pplane->pwfb.getrectangle != NULL);
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/* The rectangle that we receive here is in absolute device coordinates.
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* We need to restore this to windows relative coordinates.
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*/
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nxgl_rectoffset(&relrect, rect, -wnd->bounds.pt1.x, -wnd->bounds.pt1.y);
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/* Then get the rectangle from the framebuffer */
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pplane->pwfb.getrectangle(wnd, &relrect, dest, deststride);
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}
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxbe_getrectangle
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*
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* Description:
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* Get the raw contents of graphic memory within a rectangular region. NOTE:
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* Since raw graphic memory is returned, the returned memory content may be
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* the memory of windows above this one and may not necessarily belong to
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* this window unless you assure that this is the top window.
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*
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* Input Parameters:
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* wnd - The window structure reference
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* rect - The location to be copied (in window-relative coordinates)
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* plane - Specifies the color plane to get from.
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* dest - The location to copy the memory region
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* deststride - The width, in bytes, of the dest memory
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void nxbe_getrectangle(FAR struct nxbe_window_s *wnd,
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FAR const struct nxgl_rect_s *rect, unsigned int plane,
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FAR uint8_t *dest, unsigned int deststride)
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{
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struct nxgl_rect_s remaining;
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DEBUGASSERT(wnd != NULL && rect != NULL && dest != NULL);
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DEBUGASSERT(wnd->be != NULL && wnd->be->plane != NULL);
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DEBUGASSERT(plane < wnd->be->vinfo.nplanes);
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/* Offset the rectangle by the window origin to convert it into a
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* bounding box in device coordinates
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*/
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nxgl_rectoffset(&remaining, rect, wnd->bounds.pt1.x, wnd->bounds.pt1.y);
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/* Clip to the bounding box to the limits of the window and of the
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* background screen
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*/
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nxgl_rectintersect(&remaining, &remaining, &wnd->bounds);
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nxgl_rectintersect(&remaining, &remaining, &wnd->be->bkgd.bounds);
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/* The return the graphics memory at this location. */
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if (!nxgl_nullrect(&remaining))
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{
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#ifdef CONFIG_NX_RAMBACKED
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/* If this window supports a pre-window frame buffer then get the
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* rectangle from pre-window framebuffer.
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*/
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if (NXBE_ISRAMBACKED(wnd))
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{
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nxbe_getrectangle_pwfb(wnd, &remaining, plane, dest, deststride);
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}
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else
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#endif
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/* If the window is hidden, then there is no available data source */
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if (!NXBE_ISHIDDEN(wnd))
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{
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#ifdef CONFIG_NX_SWCURSOR
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/* Is the software cursor visible? */
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if (wnd->be->cursor.visible)
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{
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/* Erase any portion of the cursor that may be above this
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* region.
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* REVISIT: Only a single color plane is supported
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*/
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wnd->be->plane[0].cursor.erase(wnd->be, &remaining, 0);
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}
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#endif
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/* Get the rectangle from the graphics device memory.
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* NOTE: Since raw graphic memory is returned, the returned memory
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* content may be the memory of windows above this one and may
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* not necessarily belong to this window.
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*/
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nxbe_getrectangle_dev(wnd, &remaining, plane, dest, deststride);
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#ifdef CONFIG_NX_SWCURSOR
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/* Was the software cursor visible? */
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if (wnd->be->cursor.visible)
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{
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/* Restore the software cursor if any part of the cursor was
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* erased above.
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*/
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wnd->be->plane[0].cursor.draw(wnd->be, &remaining, 0);
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}
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#endif
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}
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}
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}
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