forked from Archive/PX4-Autopilot
153 lines
5.2 KiB
C
Executable File
153 lines
5.2 KiB
C
Executable File
/****************************************************************************
|
|
* nuttx/graphics/nxconsole/nxcon_bkgd.c
|
|
*
|
|
* Copyright (C) 2012 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 <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <semaphore.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/nx/nx.h>
|
|
#include <nuttx/nx/nxglib.h>
|
|
|
|
#include "nxcon_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxcon_redraw
|
|
*
|
|
* Description:
|
|
* Re-draw a portion of the NX console. This function should be called
|
|
* from the appropriate window callback logic.
|
|
*
|
|
* Input Parameters:
|
|
* handle - A handle previously returned by nx_register, nxtk_register, or
|
|
* nxtool_register.
|
|
* rect - The rectangle that needs to be re-drawn (in window relative
|
|
* coordinates)
|
|
* more - true: More re-draw requests will follow
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxcon_redraw(NXCONSOLE handle, FAR const struct nxgl_rect_s *rect, bool more)
|
|
{
|
|
FAR struct nxcon_state_s *priv;
|
|
int ret;
|
|
int i;
|
|
|
|
DEBUGASSERT(handle && rect);
|
|
gvdbg("rect={(%d,%d),(%d,%d)} more=%s\n",
|
|
rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
|
|
more ? "true" : "false");
|
|
|
|
/* Recover our private state structure */
|
|
|
|
priv = (FAR struct nxcon_state_s *)handle;
|
|
|
|
/* Get exclusive access to the state structure */
|
|
|
|
do
|
|
{
|
|
ret = nxcon_semwait(priv);
|
|
|
|
/* Check for errors */
|
|
|
|
if (ret < 0)
|
|
{
|
|
/* The only expected error is if the wait failed because of it
|
|
* was interrupted by a signal.
|
|
*/
|
|
|
|
DEBUGASSERT(errno == EINTR);
|
|
}
|
|
}
|
|
while (ret < 0);
|
|
|
|
/* Fill the rectangular region with the window background color */
|
|
|
|
ret = priv->ops->fill(priv, rect, priv->wndo.wcolor);
|
|
if (ret < 0)
|
|
{
|
|
gdbg("fill failed: %d\n", errno);
|
|
}
|
|
|
|
/* Then redraw each character on the display (Only the characters within
|
|
* the rectangle will actually be redrawn).
|
|
*/
|
|
|
|
for (i = 0; i < priv->nchars; i++)
|
|
{
|
|
nxcon_fillchar(priv, rect, &priv->bm[i]);
|
|
}
|
|
ret = nxcon_sempost(priv);
|
|
}
|