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- /****************************************************************************
- * 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);
- }
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