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/****************************************************************************
* nuttx/graphics/nxconsole/nxcon_internal.h
*
* Copyright (C) 2012 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 __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H
#define __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/fs/fs.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxtk.h>
#include <nuttx/nx/nxfonts.h>
#include <nuttx/nx/nxconsole.h>
/****************************************************************************
* Definitions
****************************************************************************/
/* 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 /* Limit to range of a uint8_t */
#define LINE_SEPARATION 2 /* Space (in rows) between lines */
/* Device path formats */
#define NX_DEVNAME_FORMAT "/dev/nxcon%d"
#define NX_DEVNAME_SIZE 16
/****************************************************************************
* Public Types
****************************************************************************/
/* Describes on set of console window callbacks */
struct nxcon_state_s;
struct nxcon_operations_s
{
int (*fill)(FAR struct nxcon_state_s *priv,
FAR const struct nxgl_rect_s *rect,
nxgl_mxpixel_t wcolor[CONFIG_NX_NPLANES]);
#ifndef CONFIG_NXCONSOLE_NOGETRUN
int (*move)(FAR struct nxcon_state_s *priv,
FAR const struct nxgl_rect_s *rect,
FAR const struct nxgl_point_s *offset);
#endif
int (*bitmap)(FAR struct nxcon_state_s *priv,
FAR const struct nxgl_rect_s *dest,
FAR const void *src[CONFIG_NX_NPLANES],
FAR const struct nxgl_point_s *origin,
unsigned int stride);
};
/* Describes one cached glyph bitmap */
struct nxcon_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 nxcon_bitmap_s
{
uint8_t code; /* Character code */
uint8_t flags; /* See BMFLAGS_* */
struct nxgl_point_s pos; /* Character position */
};
/* Describes the state of one NX console driver*/
struct nxcon_state_s
{
FAR const struct nxcon_operations_s *ops; /* Window operations */
FAR void *handle; /* The window handle */
uint8_t minor; /* Device minor number */
FAR struct nxcon_window_s wndo; /* Describes the window and font */
/* These characterize the font in use */
NXHANDLE font; /* The current font handle */
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 */
uint8_t maxglyphs; /* Size of the glyph[] array */
uint16_t maxchars; /* Size of the bm[] array */
uint16_t nchars; /* Number of chars in the bm[] array */
FAR struct nxcon_bitmap_s *bm; /* List of characters on the display */
FAR struct nxcon_glyph_s *glyph; /* Cache of rendered fonts in use */
};
/****************************************************************************
* Public Variables
****************************************************************************/
/* This is the common NX driver file operations */
extern const struct file_operations g_nxcondrvrops;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/* Common device registration */
FAR struct nxcon_state_s *nxcon_register(NXCONSOLE handle,
FAR struct nxcon_window_s *wndo, FAR const struct nxcon_operations_s *ops,
int minor);
/* Generic text helpers */
void nxcon_home(FAR struct nxcon_state_s *priv);
void nxcon_newline(FAR struct nxcon_state_s *priv);
void nxcon_putc(FAR struct nxcon_state_s *priv, NXHANDLE hfont, uint8_t ch);
void nxcon_fillchar(FAR struct nxcon_state_s *priv,
FAR const struct nxgl_rect_s *rect, FAR const struct nxcon_bitmap_s *bm);
#endif /* __GRAPHICS_NXCONSOLE_NXCON_INTERNAL_H */
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