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