149 lines
4.8 KiB
C
149 lines
4.8 KiB
C
/****************************************************************************
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* graphics/nxmu/nxmu_redrawreq.c
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*
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* Copyright (C) 2008-2009, 2011-2012, 2019 Gregory Nutt. All rights
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* 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 <stdbool.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nx/nx.h>
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#include "nxmu.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxmu_redrawreq
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*
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* Description:
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* Request the client that has this window to redraw the rectangular region.
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*
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****************************************************************************/
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void nxmu_redrawreq(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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#ifdef CONFIG_NX_RAMBACKED
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/* If this window supports a pre-window frame buffer, then we can just
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* update the device content from that framebuffer.
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*/
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if (NXBE_ISRAMBACKED(wnd))
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{
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FAR const void *src[CONFIG_NX_NPLANES];
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struct nxgl_rect_s wndrect;
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struct nxgl_point_s origin;
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unsigned int bpp;
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/* Put the rectangle back relative to the window */
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nxgl_rectoffset(&wndrect, rect,
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-wnd->bounds.pt1.x, -wnd->bounds.pt1.y);
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/* Get the source of address of the rectangle in the framebuffer. */
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bpp = wnd->be->plane[0].pinfo.bpp;
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src[0] = (FAR const void *)
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((FAR uint8_t *)wnd->fbmem +
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wndrect.pt1.y * wnd->stride +
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((bpp * wndrect.pt1.x) >> 3));
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/* For resolutions less than 8-bits, the starting pixel will be
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* contained in the byte pointed to by src[0]but may not be properly
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* aligned for the transfer. We fix this by modifying the origin.
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*/
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origin.x = wndrect.pt1.x;
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origin.y = wndrect.pt1.y;
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switch (bpp)
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{
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#ifndef CONFIG_NX_DISABLE_1BPP
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case 1: /* 1 bit per pixel */
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{
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origin.x &= ~7;
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}
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break;
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#endif
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#ifndef CONFIG_NX_DISABLE_2BPP
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case 2: /* 2 bits per pixel */
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{
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origin.x &= ~3;
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}
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break;
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#endif
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#ifndef CONFIG_NX_DISABLE_4BPP
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case 4: /* 4 bits per pixel */
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{
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origin.x &= ~1;
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}
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break;
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#endif
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default:
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break;
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}
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/* And render the bitmap */
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nxbe_bitmap_dev(wnd, &wndrect, src, &origin, wnd->stride);
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}
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else
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#endif
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{
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struct nxclimsg_redraw_s outmsg;
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/* Send the client redraw message */
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outmsg.msgid = NX_CLIMSG_REDRAW;
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outmsg.wnd = wnd;
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outmsg.more = false;
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nxgl_rectoffset(&outmsg.rect, rect,
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-wnd->bounds.pt1.x, -wnd->bounds.pt1.y);
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(void)nxmu_sendclientwindow(wnd, &outmsg,
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sizeof(struct nxclimsg_redraw_s));
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}
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}
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