diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-08-03 16:04:48 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-08-03 16:04:48 +0000 |
commit | 4a934b34d9f91e136d417551111a2c06b1f5c327 (patch) | |
tree | 63babfcb60345875f3ae20b676c94761eb47b30a /apps/examples/nxlines/nxlines_main.c | |
parent | 0597a9446b75ebcbd07d1503f5b70c50f8e36967 (diff) | |
download | px4-nuttx-4a934b34d9f91e136d417551111a2c06b1f5c327.tar.gz px4-nuttx-4a934b34d9f91e136d417551111a2c06b1f5c327.tar.bz2 px4-nuttx-4a934b34d9f91e136d417551111a2c06b1f5c327.zip |
Fix numerous errors in trapezoid rendering and wide line drawing algorithms
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3840 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/examples/nxlines/nxlines_main.c')
-rw-r--r-- | apps/examples/nxlines/nxlines_main.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/apps/examples/nxlines/nxlines_main.c b/apps/examples/nxlines/nxlines_main.c new file mode 100644 index 000000000..551642a24 --- /dev/null +++ b/apps/examples/nxlines/nxlines_main.c @@ -0,0 +1,280 @@ +/**************************************************************************** + * examples/nxlines/nxlines_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 <stdio.h> +#include <unistd.h> +#include <time.h> +#include <string.h> +#include <sched.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/nx.h> +#include <nuttx/nx/nxglib.h> + +#include "nxlines.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ +/* If not specified, assume that the hardware supports one video plane */ + +#ifndef CONFIG_EXAMPLES_NXLINES_VPLANE +# define CONFIG_EXAMPLES_NXLINES_VPLANE 0 +#endif + +/* If not specified, assume that the hardware supports one LCD device */ + +#ifndef CONFIG_EXAMPLES_NXLINES_DEVNO +# define CONFIG_EXAMPLES_NXLINES_DEVNO 0 +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +struct nxlines_data_s g_nxlines = +{ + NULL, /* hnx */ + NULL, /* hbkgd */ + 0, /* xres */ + 0, /* yres */ + false, /* havpos */ + { 0 }, /* sem */ + NXEXIT_SUCCESS /* exit code */ +}; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxlines_initialize + ****************************************************************************/ + +static inline int nxlines_initialize(void) +{ + FAR NX_DRIVERTYPE *dev; + +#if defined(CONFIG_EXAMPLES_NXLINES_EXTERNINIT) + /* Use external graphics driver initialization */ + + message("nxlines_initialize: Initializing external graphics device\n"); + dev = up_nxdrvinit(CONFIG_EXAMPLES_NXLINES_DEVNO); + if (!dev) + { + message("nxlines_initialize: up_nxdrvinit failed, devno=%d\n", + CONFIG_EXAMPLES_NXLINES_DEVNO); + g_nxlines.code = NXEXIT_EXTINITIALIZE; + return ERROR; + } + +#elif defined(CONFIG_NX_LCDDRIVER) + int ret; + + /* Initialize the LCD device */ + + message("nxlines_initialize: Initializing LCD\n"); + ret = up_lcdinitialize(); + if (ret < 0) + { + message("nxlines_initialize: up_lcdinitialize failed: %d\n", -ret); + g_nxlines.code = NXEXIT_LCDINITIALIZE; + return ERROR; + } + + /* Get the device instance */ + + dev = up_lcdgetdev(CONFIG_EXAMPLES_NXLINES_DEVNO); + if (!dev) + { + message("nxlines_initialize: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXLINES_DEVNO); + g_nxlines.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("nxlines_initialize: Initializing framebuffer\n"); + ret = up_fbinitialize(); + if (ret < 0) + { + message("nxlines_initialize: up_fbinitialize failed: %d\n", -ret); + g_nxlines.code = NXEXIT_FBINITIALIZE; + return ERROR; + } + + dev = up_fbgetvplane(CONFIG_EXAMPLES_NXLINES_VPLANE); + if (!dev) + { + message("nxlines_initialize: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXLINES_VPLANE); + g_nxlines.code = NXEXIT_FBGETVPLANE; + return ERROR; + } +#endif + + /* Then open NX */ + + message("nxlines_initialize: Open NX\n"); + g_nxlines.hnx = nx_open(dev); + if (!g_nxlines.hnx) + { + message("nxlines_initialize: nx_open failed: %d\n", errno); + g_nxlines.code = NXEXIT_NXOPEN; + return ERROR; + } + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: user_start/nxlines_main + ****************************************************************************/ + +#ifdef CONFIG_EXAMPLES_NXLINES_BUILTIN +# define MAIN_NAME nxlines_main +# define MAIN_NAME_STRING "nxlines_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 = nxlines_initialize(); + message(MAIN_NAME_STRING ": NX handle=%p\n", g_nxlines.hnx); + if (!g_nxlines.hnx || ret < 0) + { + message(MAIN_NAME_STRING ": Failed to get NX handle: %d\n", errno); + g_nxlines.code = NXEXIT_NXOPEN; + goto errout; + } + + /* Set the background to the configured background color */ + + message(MAIN_NAME_STRING ": Set background color=%d\n", + CONFIG_EXAMPLES_NXLINES_BGCOLOR); + + color = CONFIG_EXAMPLES_NXLINES_BGCOLOR; + ret = nx_setbgcolor(g_nxlines.hnx, &color); + if (ret < 0) + { + message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno); + g_nxlines.code = NXEXIT_NXSETBGCOLOR; + goto errout_with_nx; + } + + /* Get the background window */ + + ret = nx_requestbkgd(g_nxlines.hnx, &g_bgcb, NULL); + if (ret < 0) + { + message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno); + g_nxlines.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_nxlines.havepos) + { + (void)sem_wait(&g_nxlines.sem); + } + message(MAIN_NAME_STRING ": Screen resolution (%d,%d)\n", g_nxlines.xres, g_nxlines.yres); + + /* Now, say perform the lines (these test does not return so the remaining + * logic is cosmetic). + */ + + nxlinex_test(g_nxlines.hbkgd); + + /* Release background */ + + (void)nx_releasebkgd(g_nxlines.hbkgd); + + /* Close NX */ + +errout_with_nx: + message(MAIN_NAME_STRING ": Close NX\n"); + nx_close(g_nxlines.hnx); +errout: + return g_nxlines.code; +} |