From 0894e57e58205dcfcac28a482af0668e66bbf6de Mon Sep 17 00:00:00 2001 From: patacongo Date: Fri, 28 Nov 2008 14:43:22 +0000 Subject: Single-user graphics front-end git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1326 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/graphics/nxsu/nx_open.c | 168 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 nuttx/graphics/nxsu/nx_open.c (limited to 'nuttx/graphics/nxsu/nx_open.c') diff --git a/nuttx/graphics/nxsu/nx_open.c b/nuttx/graphics/nxsu/nx_open.c new file mode 100644 index 000000000..c124ce8ef --- /dev/null +++ b/nuttx/graphics/nxsu/nx_open.c @@ -0,0 +1,168 @@ +/**************************************************************************** + * graphics/nxsu/nx_open.c + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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 + +#include +#include +#include +#include +#include + +#include +#include "nxfe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxsu_setup + ****************************************************************************/ + +static inline int nxsu_setup(FAR struct fb_vtable_s *fb, + FAR struct nxfe_state_s *fe) +{ + int ret; + + /* Configure the framebuffer device */ + + ret = nxbe_fbconfigure(fb, &fe->be); + if (ret < 0) + { + gdbg("nxs_fbconfigure failed: %d\n", -ret); + errno = -ret; + return ERROR; + } + +#if CONFIG_FB_CMAP + ret = nxbe_colormap(fb); + if (ret < 0) + { + gdbg("nx_colormap failed: %d\n", -ret); + errno = -ret; + return ERROR; + } +#endif + + /* Initialize the mouse position */ + +#ifdef CONFIG_NX_MOUSE + nxsu_mouseinit(fe->be.vinfo.xres, fe->be.vinfo.yres); +#endif + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nx_open + * + * Description: + * Create, initialize and return an NX handle for use in subsequent + * NX API calls. nx_open is the single user equivalent of nx_connect + * plus nx_run. + * + * Input Parameters: + * fb - Vtable "object" of the framebuffer "driver" to use + * cb - Callbacks used to process received NX server messages + * + * Return: + * Success: A non-NULL handle used with subsequent NX accesses + * Failure: NULL is returned and errno is set appropriately + * + ****************************************************************************/ + +NXHANDLE nx_open(FAR struct fb_vtable_s *fb, FAR const struct nx_callback_s *cb) +{ + FAR struct nxfe_state_s *fe; + int ret; + + /* Sanity checking */ + +#ifdef CONFIG_DEBUG + if (!cb) + { + errno = EINVAL; + return NULL; + } +#endif + + /* Allocate the NX state structure */ + + fe = (FAR struct nxfe_state_s *)zalloc(sizeof(struct nxfe_state_s)); + if (!fe) + { + errno = ENOMEM; + return NULL; + } + + /* Save the callback vtable */ + + fe->cb = cb; + + /* Initialize and configure the server */ + + ret = nxsu_setup(fb, fe); + if (ret < 0) + { + return NULL; /* nxsu_setup sets errno */ + } + + return (NXHANDLE)fe; +} + -- cgit v1.2.3