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- /****************************************************************************
- * graphics/nxbe/nxbe_getrectangle.c
- *
- * Copyright (C) 2011, 2019 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 <assert.h>
- #include <errno.h>
- #include <debug.h>
- #include <nuttx/nx/nxglib.h>
- #include "nxbe.h"
- /****************************************************************************
- * Private Types
- ****************************************************************************/
- struct nxbe_fill_s
- {
- struct nxbe_clipops_s cops;
- nxgl_mxpixel_t color;
- };
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxbe_getrectangle_dev
- *
- * 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, of the dest memory
- *
- * Returned Value:
- * None
- *
- ****************************************************************************/
- static inline void nxbe_getrectangle_dev(FAR struct nxbe_window_s *wnd,
- FAR const struct nxgl_rect_s *rect,
- unsigned int plane,
- FAR uint8_t *dest,
- unsigned int deststride)
- {
- FAR struct nxbe_plane_s *pplane = &wnd->be->plane[plane];
- DEBUGASSERT(pplane != NULL && pplane->dev.getrectangle != NULL);
- pplane->dev.getrectangle(&pplane->pinfo, rect, dest, deststride);
- }
- /****************************************************************************
- * Name: nxbe_getrectangle_pwfb
- *
- * Description:
- * Get the contents of pre-window framebuffer graphic memory within a
- * rectangular region.
- *
- * Input Parameters:
- * wnd - The window structure reference
- * rect - The location to be copied (in device coordinates, clipped)
- * plane - Specifies the color plane to get from.
- * dest - The location to copy the memory region
- * deststride - The width, in bytes, of the dest memory
- *
- * Returned Value:
- * None
- *
- ****************************************************************************/
- #ifdef CONFIG_NX_RAMBACKED
- static inline void nxbe_getrectangle_pwfb(FAR struct nxbe_window_s *wnd,
- FAR const struct nxgl_rect_s *rect,
- unsigned int plane,
- FAR uint8_t *dest,
- unsigned int deststride)
- {
- FAR struct nxbe_plane_s *pplane = &wnd->be->plane[plane];
- struct nxgl_rect_s relrect;
- DEBUGASSERT(pplane != NULL && pplane->pwfb.getrectangle != NULL);
- /* The rectangle that we receive here is in abolute device coordinates.
- * We need to restore this to windows relative coordinates.
- */
- nxgl_rectoffset(&relrect, rect, -wnd->bounds.pt1.x, -wnd->bounds.pt1.y);
- /* Then get the rectangle from the framebuffer */
- pplane->pwfb.getrectangle(wnd, &relrect, dest, deststride);
- }
- #endif
- /****************************************************************************
- * 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 (in window-relative coordinates)
- * plane - Specifies the color plane to get from.
- * dest - The location to copy the memory region
- * deststride - The width, in bytes, of the dest memory
- *
- * Returned Value:
- * 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;
- DEBUGASSERT(wnd != NULL && rect != NULL && dest != NULL);
- DEBUGASSERT(wnd->be != NULL && wnd->be->plane != NULL);
- DEBUGASSERT(plane < wnd->be->vinfo.nplanes);
- /* Offset the rectangle by the window origin to convert it into a
- * bounding box in device coordinates
- */
- 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. */
- if (!nxgl_nullrect(&remaining))
- {
- #ifdef CONFIG_NX_RAMBACKED
- /* If this window supports a pre-window frame buffer then get the
- * rectangle from pre-window framebuffer.
- */
- if (NXBE_ISRAMBACKED(wnd))
- {
- nxbe_getrectangle_pwfb(wnd, &remaining, plane, dest, deststride);
- }
- else
- #endif
- /* If the window is hidden, then there is no available data source */
- if (!NXBE_ISHIDDEN(wnd))
- {
- #ifdef CONFIG_NX_SWCURSOR
- /* Is the software cursor visible? */
- if (wnd->be->cursor.visible)
- {
- /* Erase any portion of the cursor that may be above this
- * region.
- * REVISIT: Only a single color plane is supported
- */
- wnd->be->plane[0].cursor.erase(wnd->be, &remaining, 0);
- }
- #endif
- /* Get the rectangle from the graphics device memory.
- * 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.
- */
- nxbe_getrectangle_dev(wnd, &remaining, plane, dest, deststride);
- #ifdef CONFIG_NX_SWCURSOR
- /* Was the software cursor visible? */
- if (wnd->be->cursor.visible)
- {
- /* Restore the software cursor if any part of the cursor was
- * erased above.
- */
- wnd->be->plane[0].cursor.draw(wnd->be, &remaining, 0);
- }
- #endif
- }
- }
- }
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