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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-07-18 22:22:02 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-07-18 22:22:02 +0000 |
commit | 5008a83d14dd96fd953cd698c5d4a2780a77cea9 (patch) | |
tree | e7d2fc2d61de30088b1fa463d85574c22e72882f /apps/examples/nxhello/nxhello_main.c | |
parent | 924c65c554d83fe6f12bc55a9ce6d4ab62597b94 (diff) | |
download | nuttx-5008a83d14dd96fd953cd698c5d4a2780a77cea9.tar.gz nuttx-5008a83d14dd96fd953cd698c5d4a2780a77cea9.tar.bz2 nuttx-5008a83d14dd96fd953cd698c5d4a2780a77cea9.zip |
Add apps/examples/nxhello -- a VERY simple graphics example
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3797 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/examples/nxhello/nxhello_main.c')
-rw-r--r-- | apps/examples/nxhello/nxhello_main.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/apps/examples/nxhello/nxhello_main.c b/apps/examples/nxhello/nxhello_main.c new file mode 100644 index 000000000..02b2f17a2 --- /dev/null +++ b/apps/examples/nxhello/nxhello_main.c @@ -0,0 +1,282 @@ +/**************************************************************************** + * examples/nxhello/nxhello_main.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <sys/types.h> + +#include <stdint.h> +#include <stdbool.h> +#include <stdio.h> +#include <unistd.h> +#include <time.h> +#include <string.h> +#include <sched.h> +#include <pthread.h> +#include <errno.h> +#include <debug.h> + +#ifdef CONFIG_NX_LCDDRIVER +# include <nuttx/lcd/lcd.h> +#else +# include <nuttx/fb.h> +#endif + +#include <nuttx/arch.h> +#include <nuttx/nx.h> +#include <nuttx/nxglib.h> + +#include "nxhello.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ +/* If not specified, assume that the hardware supports one video plane */ + +#ifndef CONFIG_EXAMPLES_NXHELLO_VPLANE +# define CONFIG_EXAMPLES_NXHELLO_VPLANE 0 +#endif + +/* If not specified, assume that the hardware supports one LCD device */ + +#ifndef CONFIG_EXAMPLES_NXHELLO_DEVNO +# define CONFIG_EXAMPLES_NXHELLO_DEVNO 0 +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +struct nxhello_data_s g_nxhello = +{ + NULL, /* hnx */ + NULL, /* hbkgd */ + 0, /* xres */ + 0, /* yres */ + false, /* havpos */ + { 0 }, /* sem */ + NXEXIT_SUCCESS /* exit code */ +}; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxhello_initialize + ****************************************************************************/ + +static inline int nxhello_initialize(void) +{ + FAR NX_DRIVERTYPE *dev; + +#if defined(CONFIG_EXAMPLES_NXHELLO_EXTERNINIT) + /* Use external graphics driver initialization */ + + message("nxhello_initialize: Initializing external graphics device\n"); + dev = up_nxdrvinit(CONFIG_EXAMPLES_NXHELLO_DEVNO); + if (!dev) + { + message("nxhello_initialize: up_nxdrvinit failed, devno=%d\n", + CONFIG_EXAMPLES_NXHELLO_DEVNO); + g_nxhello.code = NXEXIT_EXTINITIALIZE; + return ERROR; + } + +#elif defined(CONFIG_NX_LCDDRIVER) + int ret; + + /* Initialize the LCD device */ + + message("nxhello_initialize: Initializing LCD\n"); + ret = up_lcdinitialize(); + if (ret < 0) + { + message("nxhello_initialize: up_lcdinitialize failed: %d\n", -ret); + g_nxhello.code = NXEXIT_LCDINITIALIZE; + return ERROR; + } + + /* Get the device instance */ + + dev = up_lcdgetdev(CONFIG_EXAMPLES_NXHELLO_DEVNO); + if (!dev) + { + message("nxhello_initialize: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXHELLO_DEVNO); + g_nxhello.code = NXEXIT_LCDGETDEV; + return ERROR; + } + + /* Turn the LCD on at 75% power */ + + (void)dev->setpower(dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4)); +#else + int ret; + + /* Initialize the frame buffer device */ + + message("nxhello_initialize: Initializing framebuffer\n"); + ret = up_fbinitialize(); + if (ret < 0) + { + message("nxhello_initialize: up_fbinitialize failed: %d\n", -ret); + g_nxhello.code = NXEXIT_FBINITIALIZE; + return ERROR; + } + + dev = up_fbgetvplane(CONFIG_EXAMPLES_NXHELLO_VPLANE); + if (!dev) + { + message("nxhello_initialize: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXHELLO_VPLANE); + g_nxhello.code = NXEXIT_FBGETVPLANE; + return ERROR; + } +#endif + + /* Then open NX */ + + message("nxhello_initialize: Open NX\n"); + g_nxhello.hnx = nx_open(dev); + if (!g_nxhello.hnx) + { + message("nxhello_initialize: nx_open failed: %d\n", errno); + g_nxhello.code = NXEXIT_NXOPEN; + return ERROR; + } + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: user_start/nxhello_main + ****************************************************************************/ + +#ifdef CONFIG_EXAMPLES_NXHELLO_BUILTIN +# define MAIN_NAME nxhello_main +# define MAIN_NAME_STRING "nxhello_main" +#else +# define MAIN_NAME user_start +# define MAIN_NAME_STRING "user_start" +#endif + +int MAIN_NAME(int argc, char *argv[]) +{ + nxgl_mxpixel_t color; + int ret; + + /* Initialize NX */ + + ret = nxhello_initialize(); + message(MAIN_NAME_STRING ": NX handle=%p\n", g_nxhello.hnx); + if (!g_nxhello.hnx || ret < 0) + { + message(MAIN_NAME_STRING ": Failed to get NX handle: %d\n", errno); + g_nxhello.code = NXEXIT_NXOPEN; + goto errout; + } + + /* Set the background to the configured background color */ + + message(MAIN_NAME_STRING ": Set background color=%d\n", + CONFIG_EXAMPLES_NXHELLO_BGCOLOR); + + color = CONFIG_EXAMPLES_NXHELLO_BGCOLOR; + ret = nx_setbgcolor(g_nxhello.hnx, &color); + if (ret < 0) + { + message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno); + g_nxhello.code = NXEXIT_NXSETBGCOLOR; + goto errout_with_nx; + } + + /* Get the background window */ + + ret = nx_requestbkgd(g_nxhello.hnx, &g_bgcb, NULL); + if (ret < 0) + { + message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno); + g_nxhello.code = NXEXIT_NXREQUESTBKGD; + goto errout_with_nx; + } + + /* Wait until we have the screen resolution. We'll have this immediately + * unless we are dealing with the NX server. + */ + + while (!g_nxhello.havepos) + { + (void)sem_wait(&g_nxhello.sem); + } + message(MAIN_NAME_STRING ": Screen resolution (%d,%d)\n", g_nxhello.xres, g_nxhello.yres); + + /* Now, say hello and exit, leeping a little before each. */ + + sleep(1); + nxhello_hello(g_nxhello.hbkgd); + sleep(1); + + /* Release background */ + + (void)nx_releasebkgd(g_nxhello.hbkgd); + + /* Close NX */ + +errout_with_nx: + message(MAIN_NAME_STRING ": Close NX\n"); + nx_close(g_nxhello.hnx); +errout: + return g_nxhello.code; +} |