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Diffstat (limited to 'nuttx/graphics/nxmu/nx_setpixel.c')
-rw-r--r-- | nuttx/graphics/nxmu/nx_setpixel.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/nuttx/graphics/nxmu/nx_setpixel.c b/nuttx/graphics/nxmu/nx_setpixel.c new file mode 100644 index 000000000..f4cc17053 --- /dev/null +++ b/nuttx/graphics/nxmu/nx_setpixel.c @@ -0,0 +1,123 @@ +/**************************************************************************** + * graphics/nxmu/nx_setpixel.c + * + * Copyright (C) 2011 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 <mqueue.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/nx/nxglib.h> +#include <nuttx/nx/nx.h> + +#include "nxfe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nx_setpixel + * + * Description: + * Set a single pixel in the window to the specified color. This is simply + * a degenerate case of nx_fill(), but may be optimized in some architectures. + * + * Input Parameters: + * wnd - The window structure reference + * pos - The pixel location to be set + * col - The color to use in the set + * + * Return: + * None + * + ****************************************************************************/ + +void nx_setpixel(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos, + nxgl_mxpixel_t color[CONFIG_NX_NPLANES]) +{ + FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd; + struct nxsvrmsg_setpixel_s outmsg; + int ret; + +#ifdef CONFIG_DEBUG + if (!wnd || !wnd->conn || !pos || !color) + { + errno = EINVAL; + return ERROR; + } +#endif + + /* Format the fill command */ + + outmsg.msgid = NX_SVRMSG_SETPIXEL; + outmsg.wnd = wnd; + + nxgl_vectcopy(&outmsg.pos, pos); + nxgl_colorcopy(outmsg.color, color); + + /* Forward the fill command to the server */ + + ret = mq_send(wnd->conn->cwrmq, &outmsg, sizeof(struct nxsvrmsg_setpixel_s), NX_SVRMSG_PRIO); + if (ret < 0) + { + gdbg("mq_send failed: %d\n", errno); + } + return ret; +} |