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nuttx-apps/examples/nxtext/nxtext_internal.h
patacongo a9f5dedc51 Redesign of NXTEXT font cache 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3761 42af7a65-404d-4744-a932-0658087f49c3
2011-07-09 16:01:00 +00:00

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/****************************************************************************
* examples/nxtext/nxtext_internal.h
*
* 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.
*
****************************************************************************/
#ifndef __EXAMPLES_NXTEXT_NXTEXT_INTERNAL_H
#define __EXAMPLES_NXTEXT_NXTEXT_INTERNAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <semaphore.h>
#include <nuttx/nx.h>
#include <nuttx/nxtk.h>
/****************************************************************************
* Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_NX
# error "NX is not enabled (CONFIG_NX)"
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_VPLANE
# define CONFIG_EXAMPLES_NXTEXT_VPLANE 0
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_BPP
# define CONFIG_EXAMPLES_NXTEXT_BPP 32
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_BGCOLOR
# if CONFIG_EXAMPLES_NXTEXT_BPP == 24 || CONFIG_EXAMPLES_NXTEXT_BPP == 32
# define CONFIG_EXAMPLES_NXTEXT_BGCOLOR 0x007b68ee
# elif CONFIG_EXAMPLES_NXTEXT_BPP == 16
# define CONFIG_EXAMPLES_NXTEXT_BGCOLOR 0x7b5d
# else
# define CONFIG_EXAMPLES_NXTEXT_BGCOLOR ' '
# endif
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_PUCOLOR
# if CONFIG_EXAMPLES_NXTEXT_BPP == 24 || CONFIG_EXAMPLES_NXTEXT_BPP == 32
# define CONFIG_EXAMPLES_NXTEXT_PUCOLOR 0x00dcdcdc
# elif CONFIG_EXAMPLES_NXTEXT_BPP == 16
# define CONFIG_EXAMPLES_NXTEXT_PUCOLOR 0xdefb
# else
# define CONFIG_EXAMPLES_NXTEXT_PUCOLOR '2'
# endif
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR
# if CONFIG_EXAMPLES_NXTEXT_BPP == 24 || CONFIG_EXAMPLES_NXTEXT_BPP == 32
# define CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR 0x00000000
# elif CONFIG_EXAMPLES_NXTEXT_BPP == 16
# define CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR 0x0000
# else
# define CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR 'F'
# endif
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR
# if CONFIG_EXAMPLES_NXTEXT_BPP == 24 || CONFIG_EXAMPLES_NXTEXT_BPP == 32
# define CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR 0x00000000
# elif CONFIG_EXAMPLES_NXTEXT_BPP == 16
# define CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR 0x0000
# else
# define CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR 'F'
# endif
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_BMCACHE
# define CONFIG_EXAMPLES_NXTEXT_BMCACHE 128
#endif
#ifndef CONFIG_EXAMPLES_NXTEXT_GLCACHE
# define CONFIG_EXAMPLES_NXTEXT_BMCACHE 16
#endif
#ifdef CONFIG_NX_MULTIUSER
# 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_NXTEXT_STACKSIZE
# define CONFIG_EXAMPLES_NXTEXT_STACKSIZE 2048
# endif
# ifndef CONFIG_EXAMPLES_NXTEXT_LISTENERPRIO
# define CONFIG_EXAMPLES_NXTEXT_LISTENERPRIO 100
# endif
# ifndef CONFIG_EXAMPLES_NXTEXT_CLIENTPRIO
# define CONFIG_EXAMPLES_NXTEXT_CLIENTPRIO 100
# endif
# ifndef CONFIG_EXAMPLES_NXTEXT_SERVERPRIO
# define CONFIG_EXAMPLES_NXTEXT_SERVERPRIO 120
# endif
# ifndef CONFIG_EXAMPLES_NXTEXT_NOTIFYSIGNO
# define CONFIG_EXAMPLES_NXTEXT_NOTIFYSIGNO 4
# endif
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lib_lowprintf(__VA_ARGS__)
# define msgflush()
# else
# define message(...) printf(__VA_ARGS__)
# define msgflush() fflush(stdout)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lib_lowprintf
# define msgflush()
# else
# define message printf
# define msgflush() fflush(stdout)
# endif
#endif
/* Bitmap flags */
#define BMFLAGS_NOGLYPH (1 << 0) /* No glyph available, use space */
#define BM_ISSPACE(bm) (((bm)->flags & BMFLAGS_NOGLYPH) != 0)
/* Sizes and maximums */
#define MAX_USECNT 255
/****************************************************************************
* Public Types
****************************************************************************/
enum exitcode_e
{
NXEXIT_SUCCESS = 0,
NXEXIT_SCHEDSETPARAM,
NXEXIT_TASKCREATE,
NXEXIT_PTHREADCREATE,
NXEXIT_EXTINITIALIZE,
NXEXIT_FBINITIALIZE,
NXEXIT_FBGETVPLANE,
NXEXIT_LCDINITIALIZE,
NXEXIT_LCDGETDEV,
NXEXIT_NXOPEN,
NXEXIT_NXREQUESTBKGD,
NXEXIT_NXCONNECT,
NXEXIT_NXSETBGCOLOR,
NXEXIT_NXOPENWINDOW,
NXEXIT_NXSETSIZE,
NXEXIT_NXSETPOSITION,
NXEXIT_NXCLOSEWINDOW,
NXEXIT_LOSTSERVERCONN
};
/* Describes one cached glyph bitmap */
struct nxtext_glyph_s
{
uint8_t code; /* Character code */
uint8_t height; /* Height of this glyph (in rows) */
uint8_t width; /* Width of this glyph (in pixels) */
uint8_t stride; /* Width of the glyph row (in bytes) */
uint8_t usecnt; /* Use count */
FAR uint8_t *bitmap; /* Allocated bitmap memory */
};
/* Describes on character on the display */
struct nxtext_bitmap_s
{
uint8_t code; /* Character code */
uint8_t flags; /* See BMFLAGS_* */
struct nxgl_point_s pos; /* Character position */
};
/* Describes the state of one text display */
struct nxtext_state_s
{
/* The following describe the window */
nxgl_mxpixel_t wcolor[CONFIG_NX_NPLANES]; /* Window color */
struct nxgl_size_s wsize; /* Window size */
struct nxgl_point_s wpos; /* Window position */
/* These characterize the font in use */
nxgl_mxpixel_t fcolor[CONFIG_NX_NPLANES]; /* Font color */
uint8_t fheight; /* Max height of a font in pixels */
uint8_t fwidth; /* Max width of a font in pixels */
uint8_t spwidth; /* The width of a space */
struct nxgl_point_s fpos; /* Next display position */
/* These describe all text already added to the display */
uint16_t maxchars; /* Size of the mb array */
uint8_t maxglyphs; /* Size of the glyph array */
uint8_t nchars; /* Number of chars already displayed */
FAR struct nxtext_bitmap_s *bm; /* List of characters on the display */
FAR struct nxtext_glyph_s *glyph; /* Cache of rendered fonts in use */
};
/****************************************************************************
* Public Variables
****************************************************************************/
/* The connecton handler */
extern NXHANDLE g_hnx;
/* Background window handle */
extern NXHANDLE g_bgwnd;
/* NX callback vtables */
extern const struct nx_callback_s g_bgcb;
/* The screen resolution */
nxgl_coord_t g_xres;
nxgl_coord_t g_yres;
extern bool b_haveresolution;
#ifdef CONFIG_NX_MULTIUSER
extern bool g_connected;
#endif
extern sem_t g_semevent;
extern int g_exitcode;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#ifdef CONFIG_EXAMPLES_NXTEXT_EXTERNINIT
extern FAR NX_DRIVERTYPE *up_nxdrvinit(unsigned int devno);
#endif
#if defined(CONFIG_NX) && defined(CONFIG_NX_MULTIUSER)
extern int nxtext_server(int argc, char *argv[]);
extern FAR void *nxtext_listener(FAR void *arg);
#endif
/* Background window interfaces */
extern FAR struct nxtext_state_s *nxbg_getstate(void);
extern void nxbg_write(NXWINDOW hwnd, FAR const uint8_t *buffer, size_t buflen);
extern void nxbg_redrawrect(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect);
/* Pop-up window interfaces */
extern NXWINDOW nxpu_open(void);
extern int nxpu_close(NXWINDOW hwnd);
/* Generic text helpers */
extern void nxtext_home(FAR struct nxtext_state_s *st);
extern void nxtext_newline(FAR struct nxtext_state_s *st);
extern void nxtext_putc(NXWINDOW hwnd, FAR struct nxtext_state_s *st,
uint8_t ch);
extern void nxtext_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
FAR struct nxtext_state_s *st,
FAR const struct nxtext_bitmap_s *bm);
#endif /* __EXAMPLES_NXTEXT_NXTEXT_INTERNAL_H */
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