nuttx/libs/libnx/nxmu/nx_filltrapezoid.c

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/****************************************************************************
* libs/libnx/nxmu/nx_filltrapezoid.c
*
* Copyright (C) 2008-2009, 2011-2013 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 <string.h>
#include <mqueue.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxbe.h>
#include <nuttx/nx/nxmu.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nx_filltrapezoid
*
* Description:
* Fill the specified trapezoidal region in the window with the specified color
*
* Input Parameters:
* hwnd - The window handle
* clip - Clipping region (may be null)
* trap - The trapezoidal region to be filled
* color - The color to use in the fill
*
* Returned Value:
* OK on success; ERROR on failure with errno set appropriately
*
****************************************************************************/
int nx_filltrapezoid(NXWINDOW hwnd, FAR const struct nxgl_rect_s *clip,
FAR const struct nxgl_trapezoid_s *trap,
nxgl_mxpixel_t color[CONFIG_NX_NPLANES])
{
FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
struct nxsvrmsg_filltrapezoid_s outmsg;
int i;
/* Some debug-only sanity checks */
#ifdef CONFIG_DEBUG_FEATURES
if (!wnd || !trap || !color)
{
set_errno(EINVAL);
return ERROR;
}
#endif
/* Format the fill command */
outmsg.msgid = NX_SVRMSG_FILLTRAP;
outmsg.wnd = wnd;
/* If no clipping window was provided, then use the size of the entire window */
if (clip)
{
nxgl_rectcopy(&outmsg.clip, clip);
}
else
{
nxgl_rectcopy(&outmsg.clip, &wnd->bounds);
}
/* Copy the trapezod and the color into the message */
nxgl_trapcopy(&outmsg.trap, trap);
#if CONFIG_NX_NPLANES > 1
for (i = 0; i < CONFIG_NX_NPLANES; i++)
#else
i = 0;
#endif
{
outmsg.color[i] = color[i];
}
/* Forward the trapezoid fill command to the server */
return nxmu_sendwindow(wnd, &outmsg, sizeof(struct nxsvrmsg_filltrapezoid_s));
}