245 lines
8.6 KiB
C
245 lines
8.6 KiB
C
/****************************************************************************
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* examples/pwfb/pwfb_events.c
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*
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* Copyright (C) 2019 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 <stdio.h>
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#include <stdlib.h>
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#include <semaphore.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/nx/nx.h>
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#include <nuttx/nx/nxtk.h>
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#include "pwfb_internal.h"
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static void pwfb_wndo_redraw(NXTKWINDOW hwnd,
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FAR const struct nxgl_rect_s *rect, bool morem, FAR void *arg);
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static void pwfb_wndo_position(NXTKWINDOW hwnd, FAR
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FAR const struct nxgl_size_s *size,
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FAR const struct nxgl_point_s *pos,
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FAR const struct nxgl_rect_s *bounds,
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FAR void *arg);
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static void pwfb_tb_redraw(NXTKWINDOW hwnd,
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FAR const struct nxgl_rect_s *rect, bool morem, FAR void *arg);
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static void pwfb_tb_position(NXTKWINDOW hwnd,
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FAR const struct nxgl_size_s *size,
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FAR const struct nxgl_point_s *pos,
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FAR const struct nxgl_rect_s *bounds,
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FAR void *arg);
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/****************************************************************************
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* Public Data
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****************************************************************************/
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const struct nx_callback_s g_pwfb_wncb =
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{
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pwfb_wndo_redraw, /* redraw */
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pwfb_wndo_position /* position */
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#ifdef CONFIG_NX_XYINPUT
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, NULL /* mousein */
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#endif
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#ifdef CONFIG_NX_KBD
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, NULL /* kbdin */
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#endif
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, NULL /* event */
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};
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const struct nx_callback_s g_pwfb_tbcb =
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{
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pwfb_tb_redraw, /* redraw */
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pwfb_tb_position /* position */
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#ifdef CONFIG_NX_XYINPUT
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, NULL /* mousein */
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#endif
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#ifdef CONFIG_NX_KBD
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, NULL /* kbdin */
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#endif
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, NULL /* event */
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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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* Name: pwfb_wndo_redraw
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****************************************************************************/
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static void pwfb_wndo_redraw(NXTKWINDOW hwnd,
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FAR const struct nxgl_rect_s *rect,
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bool more, FAR void *arg)
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{
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/* There should be no redraw requests when using per-window framebuffers */
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printf("pwfb_wndo_redraw: hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
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hwnd,
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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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}
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/****************************************************************************
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* Name: pwfb_wndo_position
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****************************************************************************/
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static void pwfb_wndo_position(NXTKWINDOW hwnd,
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FAR const struct nxgl_size_s *size,
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FAR const struct nxgl_point_s *pos,
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FAR const struct nxgl_rect_s *bounds,
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FAR void *arg)
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{
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FAR struct pwfb_state_s *st = (FAR struct pwfb_state_s *)arg;
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#ifdef CONFIG_EXAMPLES_PWFB_VERBOSE
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/* Report the position */
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printf("pwfb_wndo_position: hwnd=%p size=(%d,%d) pos=(%d,%d) "
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"bounds={(%d,%d),(%d,%d)}\n",
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hwnd, size->w, size->h, pos->x, pos->y,
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bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
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#endif
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/* Have we picked off the window bounds yet? */
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if (!st->haveres)
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{
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/* Save the window limits (these should be the same for all places and
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* all windows.
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*/
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st->xres = bounds->pt2.x + 1;
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st->yres = bounds->pt2.y + 1;
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st->haveres = true;
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sem_post(&st->semevent);
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printf("pwfb_wndo_position: Have xres=%d yres=%d\n",
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st->xres, st->yres);
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}
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}
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/****************************************************************************
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* Name: pwfb_tb_redraw
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****************************************************************************/
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static void pwfb_tb_redraw(NXTKWINDOW hwnd,
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FAR const struct nxgl_rect_s *rect,
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bool more, FAR void *arg)
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{
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printf("pwfb_tb_redraw: hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
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hwnd,
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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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}
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/****************************************************************************
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* Name: pwfb_tb_position
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****************************************************************************/
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static void pwfb_tb_position(NXTKWINDOW hwnd,
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FAR const struct nxgl_size_s *size,
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FAR const struct nxgl_point_s *pos,
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FAR const struct nxgl_rect_s *bounds,
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FAR void *arg)
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{
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#ifdef CONFIG_EXAMPLES_PWFB_VERBOSE
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FAR struct nxeg_state_s *st = (FAR struct nxeg_state_s *)arg;
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/* Report the position */
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printf("pwfb_tb_position: hwnd=%p size=(%d,%d) pos=(%d,%d) "
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"bounds={(%d,%d),(%d,%d)}\n",
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hwnd, size->w, size->h, pos->x, pos->y,
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bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
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#endif
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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: pwfb_listener
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****************************************************************************/
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FAR void *pwfb_listener(FAR void *arg)
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{
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FAR struct pwfb_state_s *st = (FAR struct pwfb_state_s *)arg;
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int ret;
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/* Process events forever */
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for (; ; )
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{
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/* Handle the next event. If we were configured blocking, then
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* we will stay right here until the next event is received. Since
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* we have dedicated a while thread to servicing events, it would
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* be most natural to also select CONFIG_NX_BLOCKING -- if not, the
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* following would be a tight infinite loop (unless we added addition
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* logic with nx_eventnotify and sigwait to pace it).
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*/
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ret = nx_eventhandler(st->hnx);
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if (ret < 0)
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{
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/* An error occurred... assume that we have lost connection with
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* the server.
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*/
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printf("pwfb_listener: Lost server connection: %d\n", errno);
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pthread_exit(NULL);
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}
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/* If we received a message, we must be connected */
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if (!st->connected)
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{
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st->connected = true;
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sem_post(&st->semevent);
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printf("pwfb_listener: Connected\n");
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}
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}
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}
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