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nuttx-apps/examples/nximage/nximage.h

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/****************************************************************************
* examples/nximage/nximage.h
*
* Copyright (C) 2011, 2015, 2017 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.
*
****************************************************************************/
#ifndef __APPS_EXAMPLES_NXIMAGE_NXIMAGE_H
#define __APPS_EXAMPLES_NXIMAGE_NXIMAGE_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <semaphore.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxglib.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_NX
# error "NX is not enabled (CONFIG_NX)"
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_BPP
# define CONFIG_EXAMPLES_NXIMAGE_BPP 16
#endif
#if defined(CONFIG_EXAMPLES_NXIMAGE_XSCALEp5)
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0
#elif defined(CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5)
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0
#elif defined(CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0)
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5
#else
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5
# undef CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0
# define CONFIG_EXAMPLES_NXIMAGE_XSCALE1p0 1
#endif
#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALEp5)
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0
#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5)
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0
#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0)
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5
#else
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALEp5
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p0
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5
# undef CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0
# define CONFIG_EXAMPLES_NXIMAGE_YSCALE1p0 1
#endif
/* Multi-user NX support */
#ifdef CONFIG_DISABLE_MQUEUE
# error "The multi-threaded example requires MQ support (CONFIG_DISABLE_MQUEUE=n)"
#endif
#ifdef CONFIG_DISABLE_SIGNALS
# error "This example requires signal support (CONFIG_DISABLE_SIGNALS=n)"
#endif
#ifdef CONFIG_DISABLE_PTHREAD
# error "This example requires pthread support (CONFIG_DISABLE_PTHREAD=n)"
#endif
#ifndef CONFIG_NX_BLOCKING
# error "This example depends on CONFIG_NX_BLOCKING"
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_LISTENER_STACKSIZE
# define CONFIG_EXAMPLES_NXIMAGE_LISTENER_STACKSIZE 2048
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_LISTENERPRIO
# define CONFIG_EXAMPLES_NXIMAGE_LISTENERPRIO 100
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_CLIENTPRIO
# define CONFIG_EXAMPLES_NXIMAGE_CLIENTPRIO 100
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_SERVERPRIO
# define CONFIG_EXAMPLES_NXIMAGE_SERVERPRIO 120
#endif
#ifndef CONFIG_EXAMPLES_NXIMAGE_NOTIFYSIGNO
# define CONFIG_EXAMPLES_NXIMAGE_NOTIFYSIGNO 4
#endif
/* Image Information ********************************************************/
#define IMAGE_HEIGHT 160 /* Number of rows in the raw image */
#define IMAGE_WIDTH 160 /* Number of columns in the raw image */
#if defined(CONFIG_EXAMPLES_NXIMAGE_XSCALEp5)
# define SCALED_WIDTH 80 /* Number of columns in the scaled image */
#elif defined(CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5)
# define SCALED_WIDTH 240 /* Number of columns in the scaled image */
#elif defined(CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0)
# define SCALED_WIDTH 320 /* Number of columns in the scaled image */
#else
# define SCALED_WIDTH 160 /* Number of columns in the scaled image */
#endif
#if defined(CONFIG_EXAMPLES_NXIMAGE_YSCALEp5)
# define SCALED_HEIGHT 80 /* Number of rows in the scaled image */
#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5)
# define SCALED_HEIGHT 240 /* Number of rows in the scaled image */
#elif defined(CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0)
# define SCALED_HEIGHT 320 /* Number of rows in the scaled image */
#else
# define SCALED_HEIGHT 160 /* Number of rows in the scaled image */
#endif
/****************************************************************************
* Public Types
****************************************************************************/
enum exitcode_e
{
NXEXIT_SUCCESS = 0,
NXEXIT_INIT,
NXEXIT_NXREQUESTBKGD,
NXEXIT_NXSETBGCOLOR
};
struct nximage_data_s
{
/* The NX handles */
NXHANDLE hnx;
NXHANDLE hbkgd;
bool connected;
/* The screen resolution */
nxgl_coord_t xres;
nxgl_coord_t yres;
volatile bool havepos;
sem_t eventsem;
volatile int code;
};
/****************************************************************************
* Public Data
****************************************************************************/
/* NXIMAGE state data */
extern struct nximage_data_s g_nximage;
/* NX callback vtables */
extern const struct nx_callback_s g_nximagecb;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/* NX server/listener thread */
FAR void *nximage_listener(FAR void *arg);
/* Background window interfaces */
void nximage_image(NXWINDOW hwnd);
/* Image interfaces */
nxgl_mxpixel_t nximage_bgcolor(void);
nxgl_mxpixel_t nximage_avgcolor(nxgl_mxpixel_t color1, nxgl_mxpixel_t color2);
void nximage_blitrow(FAR nxgl_mxpixel_t *run, FAR const void **state);
#endif /* __APPS_EXAMPLES_NXIMAGE_NXIMAGE_H */
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