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Completes coding of the PWM module

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4200 7fd9a85b-ad96-42d3-883c-3090e2eb8679
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patacongo
2011-12-19 19:24:09 +00:00
commit add995c32e
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apps/examples/nxtext/Makefile
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############################################################################
# apps/examples/nxtext/Makefile
#
# 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.
#
############################################################################
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
include $(APPDIR)/Make.defs
# NuttX NX Graphics Example.
ASRCS =
CSRCS = nxtext_main.c nxtext_bkgd.c nxtext_popup.c nxtext_putc.c
ifeq ($(CONFIG_NX_MULTIUSER),y)
CSRCS += nxtext_server.c
endif
AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))
SRCS = $(ASRCS) $(CSRCS)
OBJS = $(AOBJS) $(COBJS)
ifeq ($(WINTOOL),y)
BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}"
else
BIN = "$(APPDIR)/libapps$(LIBEXT)"
endif
ROOTDEPPATH = --dep-path .
# NXTEXT built-in application info
APPNAME = nxtext
PRIORITY = SCHED_PRIORITY_DEFAULT
STACKSIZE = 2048
# Common build
VPATH =
all: .built
.PHONY: context clean depend distclean
$(AOBJS): %$(OBJEXT): %.S
$(call ASSEMBLE, $<, $@)
$(COBJS): %$(OBJEXT): %.c
$(call COMPILE, $<, $@)
.built: $(OBJS)
@( for obj in $(OBJS) ; do \
$(call ARCHIVE, $(BIN), $${obj}); \
done ; )
@touch .built
.context:
ifeq ($(CONFIG_EXAMPLES_NXTEXT_BUILTIN),y)
$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
@touch $@
endif
context: .context
.depend: Makefile $(SRCS)
@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
@touch $@
depend: .depend
clean:
@rm -f *.o *~ .*.swp .built
$(call CLEAN)
distclean: clean
@rm -f Make.dep .depend
-include Make.dep
apps/examples/nxtext/nxtext_bkgd.c
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/****************************************************************************
* examples/nxtext/nxtext_bkgd.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 <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <semaphore.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxfonts.h>
#include "nxtext_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static void nxbg_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool morem, FAR void *arg);
static void nxbg_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg);
#ifdef CONFIG_NX_MOUSE
static void nxbg_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg);
#endif
#ifdef CONFIG_NX_KBD
static void nxbg_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
FAR void *arg);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
static struct nxtext_state_s g_bgstate;
static struct nxtext_bitmap_s g_bgbm[CONFIG_EXAMPLES_NXTEXT_BMCACHE];
static struct nxtext_glyph_s g_bgglyph[CONFIG_EXAMPLES_NXTEXT_GLCACHE];
/****************************************************************************
* Public Data
****************************************************************************/
/* Background window call table */
const struct nx_callback_s g_bgcb =
{
nxbg_redraw, /* redraw */
nxbg_position /* position */
#ifdef CONFIG_NX_MOUSE
, nxbg_mousein /* mousein */
#endif
#ifdef CONFIG_NX_KBD
, nxbg_kbdin /* my kbdin */
#endif
};
/* Background window handle */
NXHANDLE g_bgwnd;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxbg_redrawrect
****************************************************************************/
static void nxbg_redrawrect(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect)
{
int ret;
int i;
ret = nx_fill(hwnd, rect, g_bgstate.wcolor);
if (ret < 0)
{
message("nxbg_redrawrect: nx_fill failed: %d\n", errno);
}
/* Fill each character on the display (Only the characters within rect
* will actually be redrawn).
*/
for (i = 0; i < g_bgstate.nchars; i++)
{
nxtext_fillchar(hwnd, rect, &g_bgstate, g_bghfont, &g_bgstate.bm[i]);
}
}
/****************************************************************************
* Name: nxbg_redraw
****************************************************************************/
static void nxbg_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool more, FAR void *arg)
{
gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
more ? "true" : "false");
nxbg_redrawrect(hwnd, rect);
}
/****************************************************************************
* Name: nxbg_position
****************************************************************************/
static void nxbg_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg)
{
FAR struct nxtext_state_s *st = (FAR struct nxtext_state_s *)arg;
/* Report the position */
gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
hwnd, size->w, size->h, pos->x, pos->y,
bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
/* Have we picked off the window bounds yet? */
if (!b_haveresolution)
{
/* Save the background window handle */
g_bgwnd = hwnd;
/* Save the background window size */
st->wsize.w = size->w;
st->wsize.h = size->h;
/* Save the window limits (these should be the same for all places and all windows */
g_xres = bounds->pt2.x + 1;
g_yres = bounds->pt2.y + 1;
b_haveresolution = true;
sem_post(&g_semevent);
gvdbg("Have xres=%d yres=%d\n", g_xres, g_yres);
}
}
/****************************************************************************
* Name: nxbg_mousein
****************************************************************************/
#ifdef CONFIG_NX_MOUSE
static void nxbg_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg)
{
message("nxbg_mousein: hwnd=%p pos=(%d,%d) button=%02x\n",
hwnd, pos->x, pos->y, buttons);
}
#endif
/****************************************************************************
* Name: nxbg_kbdin
****************************************************************************/
#ifdef CONFIG_NX_KBD
static void nxbg_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
FAR void *arg)
{
gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
nxbg_write(hwnd, ch, nch);
}
#endif
/****************************************************************************
* Name: nxbg_movedisplay
*
* Description:
* This function implements the data movement for the scroll operation. If
* we can read the displays framebuffer memory, then the job is pretty
* easy. However, many displays (such as SPI-based LCDs) are often read-
* only.
****************************************************************************/
#ifdef CONFIG_EXAMPLES_NXTEXT_NOGETRUN
static inline void nxbg_movedisplay(NXWINDOW hwnd, int bottom, int lineheight)
{
FAR struct nxtext_bitmap_s *bm;
struct nxgl_rect_s rect;
nxgl_coord_t row;
int ret;
int i;
/* Move each row, one at a time. They could all be moved at once (by calling
* nxbg_redrawrect), but the since the region is cleared, then re-written, the
* effect would not be good. Below the region is also cleared and re-written,
* however, in much smaller chunks.
*/
rect.pt1.x = 0;
rect.pt2.x = g_bgstate.wsize.w - 1;
for (row = LINE_SEPARATION; row < bottom; row += lineheight)
{
/* Create a bounding box the size of one row of characters */
rect.pt1.y = row;
rect.pt2.y = row + lineheight - 1;
/* Clear the region */
ret = nx_fill(hwnd, &rect, g_bgstate.wcolor);
if (ret < 0)
{
message("nxbg_movedisplay: nx_fill failed: %d\n", errno);
}
/* Fill each character that might lie within in the bounding box */
for (i = 0; i < g_bgstate.nchars; i++)
{
bm = &g_bgstate.bm[i];
if (bm->pos.y <= rect.pt2.y && bm->pos.y + g_bgstate.fheight >= rect.pt1.y)
{
nxtext_fillchar(hwnd, &rect, &g_bgstate, g_bghfont, bm);
}
}
}
/* Finally, clear the bottom part of the display */
rect.pt1.y = bottom;
rect.pt2.y = g_bgstate.wsize.h- 1;
ret = nx_fill(hwnd, &rect, g_bgstate.wcolor);
if (ret < 0)
{
message("nxbg_movedisplay: nx_fill failed: %d\n", errno);
}
}
#else
static inline void nxbg_movedisplay(NXWINDOW hwnd, int bottom, int lineheight)
{
struct nxgl_rect_s rect;
struct nxgl_point_s offset;
int ret;
/* Move the display in the range of 0-height up one lineheight. The
* line at the bottom will be reset to the background color automatically.
*
* The source rectangle to be moved.
*/
rect.pt1.x = 0;
rect.pt1.y = lineheight + LINE_SEPARATION;
rect.pt2.x = g_bgstate.wsize.w - 1;
rect.pt2.y = g_bgstate.wsize.h - 1;
/* The offset that determines how far to move the source rectangle */
offset.x = 0;
offset.y = -lineheight;
/* Move the source rectangle */
ret = nx_move(hwnd, &rect, &offset);
if (ret < 0)
{
message("nxbg_movedisplay: nx_move failed: %d\n", errno);
}
}
#endif
/****************************************************************************
* Name: nxbg_scroll
****************************************************************************/
static inline void nxbg_scroll(NXWINDOW hwnd, int lineheight)
{
int i;
int j;
/* Adjust the vertical position of each character */
for (i = 0; i < g_bgstate.nchars; )
{
FAR struct nxtext_bitmap_s *bm = &g_bgstate.bm[i];
/* Has any part of this character scrolled off the screen? */
if (bm->pos.y < lineheight + LINE_SEPARATION)
{
/* Yes... Delete the character by moving all of the data */
for (j = i; j < g_bgstate.nchars-1; j++)
{
memcpy(&g_bgstate.bm[j], &g_bgstate.bm[j+1], sizeof(struct nxtext_bitmap_s));
}
/* Decrement the number of cached characters ('i' is not incremented
* in this case because it already points to the next character)
*/
g_bgstate.nchars--;
}
/* No.. just decrement its vertical position (moving it "up" the
* display by one line).
*/
else
{
bm->pos.y -= lineheight;
/* We are keeping this one so increment to the next character */
i++;
}
}
/* And move the next display position up by one line as well */
g_bgstate.fpos.y -= lineheight;
/* Move the display in the range of 0-height up one lineheight. */
nxbg_movedisplay(hwnd, g_bgstate.fpos.y, lineheight);
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxbg_getstate
*
* Description:
* Initialize the background window state structure.
*
****************************************************************************/
FAR struct nxtext_state_s *nxbg_getstate(void)
{
FAR const struct nx_font_s *fontset;
/* Initialize the color (used for redrawing the window) */
memset(&g_bgstate, 0, sizeof(struct nxtext_state_s));
g_bgstate.wcolor[0] = CONFIG_EXAMPLES_NXTEXT_BGCOLOR;
g_bgstate.fcolor[0] = CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR;
/* Get information about the font set being used and save this in the
* state structure
*/
fontset = nxf_getfontset(g_bghfont);
g_bgstate.fheight = fontset->mxheight;
g_bgstate.fwidth = fontset->mxwidth;
g_bgstate.spwidth = fontset->spwidth;
/* Set up the text caches */
g_bgstate.maxchars = CONFIG_EXAMPLES_NXTEXT_BMCACHE;
g_bgstate.maxglyphs = CONFIG_EXAMPLES_NXTEXT_GLCACHE;
g_bgstate.bm = g_bgbm;
g_bgstate.glyph = g_bgglyph;
/* Set the first display position */
nxtext_home(&g_bgstate);
return &g_bgstate;
}
/****************************************************************************
* Name: nxbg_write
*
* Description:
* Put a sequence of bytes in the window.
*
****************************************************************************/
void nxbg_write(NXWINDOW hwnd, FAR const uint8_t *buffer, size_t buflen)
{
int lineheight = (g_bgstate.fheight + LINE_SEPARATION);
while (buflen-- > 0)
{
/* Will another character fit on this line? */
if (g_bgstate.fpos.x + g_bgstate.fwidth > g_bgstate.wsize.w)
{
/* No.. move to the next line */
nxtext_newline(&g_bgstate);
/* If we were about to output a newline character, then don't */
if (*buffer == '\n')
{
buffer++;
continue;
}
}
/* Check if we need to scroll up (handling a corner case where
* there may be more than one newline).
*/
while (g_bgstate.fpos.y >= g_bgstate.wsize.h - lineheight)
{
nxbg_scroll(hwnd, lineheight);
}
/* Finally, we can output the character */
nxtext_putc(hwnd, &g_bgstate, g_bghfont, (uint8_t)*buffer++);
}
}
apps/examples/nxtext/nxtext_internal.h
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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/nx.h>
#include <nuttx/nx/nxtk.h>
#include <nuttx/nx/nxfonts.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_PUFONTID
# define CONFIG_EXAMPLES_NXTEXT_PUFONTID NXFONT_DEFAULT
#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_BGFONTID
# define CONFIG_EXAMPLES_NXTEXT_BGFONTID NXFONT_DEFAULT
#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 /* Limit to range of a uint8_t */
#define LINE_SEPARATION 2 /* Space (in rows) between lines */
/****************************************************************************
* 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_FONTOPEN,
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 */
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 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;
/* The font handlse */
extern NXHANDLE g_bghfont;
extern NXHANDLE g_puhfont;
/* NX callback vtables */
extern const struct nx_callback_s g_bgcb;
/* The screen resolution */
extern nxgl_coord_t g_xres;
extern 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);
/* 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,
NXHANDLE hfont, uint8_t ch);
extern void nxtext_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
FAR struct nxtext_state_s *st, NXHANDLE hfont,
FAR const struct nxtext_bitmap_s *bm);
#endif /* __EXAMPLES_NXTEXT_NXTEXT_INTERNAL_H */
apps/examples/nxtext/nxtext_main.c
+512
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@@ -0,0 +1,512 @@
/****************************************************************************
* examples/nxtext/nxtext_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/nx.h>
#include <nuttx/nx/nxglib.h>
#include <nuttx/nx/nxfonts.h>
#include "nxtext_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* If not specified, assume that the hardware supports one video plane */
#ifndef CONFIG_EXAMPLES_NXTEXT_VPLANE
# define CONFIG_EXAMPLES_NXTEXT_VPLANE 0
#endif
/* If not specified, assume that the hardware supports one LCD device */
#ifndef CONFIG_EXAMPLES_NXTEXT_DEVNO
# define CONFIG_EXAMPLES_NXTEXT_DEVNO 0
#endif
#define BGMSG_LINES 24
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_NX_KBD
static const uint8_t g_pumsg[] = "Pop-Up!";
static const char *g_bgmsg[BGMSG_LINES] =
{
"\nJULIET\n", /* Line 1 */
"Wilt thou be gone?\n", /* Line 2 */
" It is not yet near day:\n", /* Line 3 */
"It was the nightingale,\n", /* Line 4 */
" and not the lark,\n", /* Line 5 */
"That pierced the fearful hollow\n", /* Line 6 */
" of thine ear;\n", /* Line 7 */
"Nightly she sings\n", /* Line 8 */
" on yon pomegranate-tree:\n", /* Line 9 */
"Believe me, love,\n", /* Line 10 */
" it was the nightingale.\n", /* Line 11 */
"\nROMEO\n", /* Line 12 */
"It was the lark,\n", /* Line 13 */
" the herald of the morn,\n", /* Line 14 */
"No nightingale:\n", /* Line 15 */
" look, love, what envious streaks\n", /* Line 16 */
"Do lace the severing clouds\n", /* Line 17 */
" in yonder east:\n", /* Line 18 */
"Night's candles are burnt out,\n", /* Line 19 */
" and jocund day\n", /* Line 20 */
"Stands tiptoe\n", /* Line 21 */
" on the misty mountain tops.\n", /* Line 22 */
"I must be gone and live,\n", /* Line 23 */
" or stay and die.\n" /* Line 24 */
};
#endif
/****************************************************************************
* Public Data
****************************************************************************/
/* The connecton handler */
NXHANDLE g_hnx = NULL;
/* The font handles */
NXHANDLE g_bghfont = NULL;
NXHANDLE g_puhfont = NULL;
/* The screen resolution */
nxgl_coord_t g_xres;
nxgl_coord_t g_yres;
bool b_haveresolution = false;
#ifdef CONFIG_NX_MULTIUSER
bool g_connected = false;
#endif
sem_t g_semevent = {0};
int g_exitcode = NXEXIT_SUCCESS;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_suinitialize
****************************************************************************/
#ifndef CONFIG_NX_MULTIUSER
static inline int nxtext_suinitialize(void)
{
FAR NX_DRIVERTYPE *dev;
#if defined(CONFIG_EXAMPLES_NXTEXT_EXTERNINIT)
/* Use external graphics driver initialization */
message("nxtext_initialize: Initializing external graphics device\n");
dev = up_nxdrvinit(CONFIG_EXAMPLES_NXTEXT_DEVNO);
if (!dev)
{
message("nxtext_initialize: up_nxdrvinit failed, devno=%d\n", CONFIG_EXAMPLES_NXTEXT_DEVNO);
g_exitcode = NXEXIT_EXTINITIALIZE;
return ERROR;
}
#elif defined(CONFIG_NX_LCDDRIVER)
int ret;
/* Initialize the LCD device */
message("nxtext_initialize: Initializing LCD\n");
ret = up_lcdinitialize();
if (ret < 0)
{
message("nxtext_initialize: up_lcdinitialize failed: %d\n", -ret);
g_exitcode = NXEXIT_LCDINITIALIZE;
return ERROR;
}
/* Get the device instance */
dev = up_lcdgetdev(CONFIG_EXAMPLES_NXTEXT_DEVNO);
if (!dev)
{
message("nxtext_initialize: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXTEXT_DEVNO);
g_exitcode = 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("nxtext_initialize: Initializing framebuffer\n");
ret = up_fbinitialize();
if (ret < 0)
{
message("nxtext_initialize: up_fbinitialize failed: %d\n", -ret);
g_exitcode = NXEXIT_FBINITIALIZE;
return ERROR;
}
dev = up_fbgetvplane(CONFIG_EXAMPLES_NXTEXT_VPLANE);
if (!dev)
{
message("nxtext_initialize: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXTEXT_VPLANE);
g_exitcode = NXEXIT_FBGETVPLANE;
return ERROR;
}
#endif
/* Then open NX */
message("nxtext_initialize: Open NX\n");
g_hnx = nx_open(dev);
if (!g_hnx)
{
message("nxtext_initialize: nx_open failed: %d\n", errno);
g_exitcode = NXEXIT_NXOPEN;
return ERROR;
}
return OK;
}
#endif
/****************************************************************************
* Name: nxtext_initialize
****************************************************************************/
#ifdef CONFIG_NX_MULTIUSER
static inline int nxtext_muinitialize(void)
{
struct sched_param param;
pthread_t thread;
pid_t servrid;
int ret;
/* Set the client task priority */
param.sched_priority = CONFIG_EXAMPLES_NXTEXT_CLIENTPRIO;
ret = sched_setparam(0, &param);
if (ret < 0)
{
message("nxtext_initialize: sched_setparam failed: %d\n" , ret);
g_exitcode = NXEXIT_SCHEDSETPARAM;
return ERROR;
}
/* Start the server task */
message("nxtext_initialize: Starting nxtext_server task\n");
servrid = task_create("NX Server", CONFIG_EXAMPLES_NXTEXT_SERVERPRIO,
CONFIG_EXAMPLES_NXTEXT_STACKSIZE, nxtext_server, NULL);
if (servrid < 0)
{
message("nxtext_initialize: Failed to create nxtext_server task: %d\n", errno);
g_exitcode = NXEXIT_TASKCREATE;
return ERROR;
}
/* Wait a bit to let the server get started */
sleep(1);
/* Connect to the server */
g_hnx = nx_connect();
if (g_hnx)
{
pthread_attr_t attr;
/* Start a separate thread to listen for server events. This is probably
* the least efficient way to do this, but it makes this example flow more
* smoothly.
*/
(void)pthread_attr_init(&attr);
param.sched_priority = CONFIG_EXAMPLES_NXTEXT_LISTENERPRIO;
(void)pthread_attr_setschedparam(&attr, &param);
(void)pthread_attr_setstacksize(&attr, CONFIG_EXAMPLES_NXTEXT_STACKSIZE);
ret = pthread_create(&thread, &attr, nxtext_listener, NULL);
if (ret != 0)
{
printf("nxtext_initialize: pthread_create failed: %d\n", ret);
g_exitcode = NXEXIT_PTHREADCREATE;
return ERROR;
}
/* Don't return until we are connected to the server */
while (!g_connected)
{
/* Wait for the listener thread to wake us up when we really
* are connected.
*/
(void)sem_wait(&g_semevent);
}
}
else
{
message("nxtext_initialize: nx_connect failed: %d\n", errno);
g_exitcode = NXEXIT_NXCONNECT;
return ERROR;
}
return OK;
}
#endif
/****************************************************************************
* Name: nxtext_initialize
****************************************************************************/
static int nxtext_initialize(void)
{
#ifdef CONFIG_NX_MULTIUSER
return nxtext_muinitialize();
#else
return nxtext_suinitialize();
#endif
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: user_start/nxtext_main
****************************************************************************/
#ifdef CONFIG_EXAMPLES_NXTEXT_BUILTIN
# define MAIN_NAME nxtext_main
# define MAIN_NAME_STRING "nxtext_main"
#else
# define MAIN_NAME user_start
# define MAIN_NAME_STRING "user_start"
#endif
int MAIN_NAME(int argc, char **argv)
{
FAR struct nxtext_state_s *bgstate;
NXWINDOW hwnd = NULL;
nxgl_mxpixel_t color;
int popcnt;
int bkgndx;
int ret;
/* Initialize NX */
ret = nxtext_initialize();
message(MAIN_NAME_STRING ": NX handle=%p\n", g_hnx);
if (!g_hnx || ret < 0)
{
message(MAIN_NAME_STRING ": Failed to get NX handle: %d\n", errno);
g_exitcode = NXEXIT_NXOPEN;
goto errout;
}
/* Get the configured font handles */
g_bghfont = nxf_getfonthandle(CONFIG_EXAMPLES_NXTEXT_BGFONTID);
if (!g_bghfont)
{
message(MAIN_NAME_STRING ": Failed to get background font handle: %d\n", errno);
g_exitcode = NXEXIT_FONTOPEN;
goto errout;
}
g_puhfont = nxf_getfonthandle(CONFIG_EXAMPLES_NXTEXT_PUFONTID);
if (!g_puhfont)
{
message(MAIN_NAME_STRING ": Failed to get pop-up font handle: %d\n", errno);
g_exitcode = NXEXIT_FONTOPEN;
goto errout;
}
/* Set the background to the configured background color */
message(MAIN_NAME_STRING ": Set background color=%d\n", CONFIG_EXAMPLES_NXTEXT_BGCOLOR);
color = CONFIG_EXAMPLES_NXTEXT_BGCOLOR;
ret = nx_setbgcolor(g_hnx, &color);
if (ret < 0)
{
message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno);
g_exitcode = NXEXIT_NXSETBGCOLOR;
goto errout_with_nx;
}
/* Get the background window */
bgstate = nxbg_getstate();
ret = nx_requestbkgd(g_hnx, &g_bgcb, bgstate);
if (ret < 0)
{
message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno);
g_exitcode = 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 (!b_haveresolution)
{
(void)sem_wait(&g_semevent);
}
message(MAIN_NAME_STRING ": Screen resolution (%d,%d)\n", g_xres, g_yres);
/* Now loop, adding text to the background and periodically presenting
* a pop-up window.
*/
popcnt = 0;
bkgndx = 0;
for (;;)
{
/* Sleep for one second */
sleep(1);
popcnt++;
/* Each three seconds, create a pop-up window. Destroy the pop-up
* window after two more seconds.
*/
if (popcnt == 3)
{
/* Create a pop-up window */
hwnd = nxpu_open();
/* Give keyboard input to the top window (which should be the pop-up) */
#ifdef CONFIG_NX_KBD
message(MAIN_NAME_STRING ": Send keyboard input: %s\n", g_pumsg);
ret = nx_kbdin(g_hnx, strlen((FAR const char *)g_pumsg), g_pumsg);
if (ret < 0)
{
message(MAIN_NAME_STRING ": nx_kbdin failed: %d\n", errno);
goto errout_with_hwnd;
}
#endif
}
else if (popcnt == 5)
{
/* Destroy the pop-up window and restart the sequence */
message(MAIN_NAME_STRING ": Close pop-up\n");
(void)nxpu_close(hwnd);
popcnt = 0;
}
/* Give another line of text to the background window. Force this
* text to go the background by calling the background window interfaces
* directly.
*/
nxbg_write(g_bgwnd, (FAR const uint8_t *)g_bgmsg[bkgndx], strlen(g_bgmsg[bkgndx]));
if (++bkgndx >= BGMSG_LINES)
{
bkgndx = 0;
}
}
/* Close the pop-up window */
errout_with_hwnd:
if (popcnt >= 3)
{
message(MAIN_NAME_STRING ": Close pop-up\n");
(void)nxpu_close(hwnd);
}
//errout_with_bkgd:
(void)nx_releasebkgd(g_bgwnd);
errout_with_nx:
#ifdef CONFIG_NX_MULTIUSER
/* Disconnect from the server */
message(MAIN_NAME_STRING ": Disconnect from the server\n");
nx_disconnect(g_hnx);
#else
/* Close the server */
message(MAIN_NAME_STRING ": Close NX\n");
nx_close(g_hnx);
#endif
errout:
return g_exitcode;
}
apps/examples/nxtext/nxtext_popup.c
+408
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@@ -0,0 +1,408 @@
/****************************************************************************
* examples/nxtext/nxtext_popup.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 <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <semaphore.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxfonts.h>
#include "nxtext_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
#define NBM_CACHE 8
#define NGLYPH_CACHE 8
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static void nxpu_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool morem, FAR void *arg);
static void nxpu_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg);
#ifdef CONFIG_NX_MOUSE
static void nxpu_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg);
#endif
#ifdef CONFIG_NX_KBD
static void nxpu_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
FAR void *arg);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/* Pop-up NX callbacks */
static const struct nx_callback_s g_pucb =
{
nxpu_redraw, /* redraw */
nxpu_position /* position */
#ifdef CONFIG_NX_MOUSE
, nxpu_mousein /* mousein */
#endif
#ifdef CONFIG_NX_KBD
, nxpu_kbdin /* my kbdin */
#endif
};
/* Pop-up state information */
static struct nxtext_state_s g_pustate;
#ifdef CONFIG_NX_KBD
static struct nxtext_bitmap_s g_pubm[NBM_CACHE];
static struct nxtext_glyph_s g_puglyph[NGLYPH_CACHE];
#endif
/* Some random numbers */
static const uint8_t g_rand8[9] =
{
0x18, 0x8d, 0x60, 0x42, 0xb7, 0xc2, 0x2d, 0xea, 0x6b
};
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxpu_randpos
****************************************************************************/
static fb_coord_t nxpu_randpos(fb_coord_t value)
{
static uint8_t ndx = 0;
uint8_t rand8 = g_rand8[ndx];
if (++ndx >= 9)
{
ndx = 0;
}
return (fb_coord_t)(((uint32_t)value * (uint32_t)rand8) >> 8);
}
/****************************************************************************
* Name: nxpu_setsize
****************************************************************************/
static inline int nxpu_setsize(NXWINDOW hwnd, FAR struct nxgl_size_s *size)
{
int ret = nx_setsize(hwnd, size);
if (ret < 0)
{
message("nxpu_setsize: nx_setsize failed: %d\n", errno);
g_exitcode = NXEXIT_NXSETSIZE;
}
return ret;
}
/****************************************************************************
* Name: nxpu_setposition
****************************************************************************/
static inline int nxpu_setposition(NXWINDOW hwnd, FAR struct nxgl_point_s *pos)
{
int ret = nx_setposition(hwnd, pos);
if (ret < 0)
{
message("nxpu_setposition: nx_setposition failed: %d\n", errno);
g_exitcode = NXEXIT_NXSETPOSITION;
}
return ret;
}
/****************************************************************************
* Name: nxpu_fillwindow
****************************************************************************/
static inline void nxpu_fillwindow(NXWINDOW hwnd,
FAR const struct nxgl_rect_s *rect,
FAR struct nxtext_state_s *st)
{
int ret;
int i;
ret = nx_fill(hwnd, rect, st->wcolor);
if (ret < 0)
{
message("nxpu_fillwindow: nx_fill failed: %d\n", errno);
}
/* Fill each character on the display (Only the characters within rect
* will actually be redrawn).
*/
#ifdef CONFIG_NX_KBD
nxtext_home(st);
for (i = 0; i < st->nchars; i++)
{
nxtext_fillchar(hwnd, rect, st, g_puhfont, &st->bm[i]);
}
#endif
}
/****************************************************************************
* Name: nxpu_redraw
****************************************************************************/
static void nxpu_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
bool more, FAR void *arg)
{
FAR struct nxtext_state_s *st = (FAR struct nxtext_state_s *)arg;
gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
more ? "true" : "false");
nxpu_fillwindow(hwnd, rect, st);
}
/****************************************************************************
* Name: nxpu_position
****************************************************************************/
static void nxpu_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
FAR const struct nxgl_point_s *pos,
FAR const struct nxgl_rect_s *bounds,
FAR void *arg)
{
FAR struct nxtext_state_s *st = (FAR struct nxtext_state_s *)arg;
/* Report the position */
gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
hwnd, size->w, size->h, pos->x, pos->y,
bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
/* Save the window position and size */
st->wpos.x = pos->x;
st->wpos.y = pos->y;
st->wsize.w = size->w;
st->wsize.h = size->h;
}
/****************************************************************************
* Name: nxpu_mousein
****************************************************************************/
#ifdef CONFIG_NX_MOUSE
static void nxpu_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
uint8_t buttons, FAR void *arg)
{
message("nxpu_mousein: hwnd=%p pos=(%d,%d) button=%02x\n",
hwnd, pos->x, pos->y, buttons);
}
#endif
/****************************************************************************
* Name: nxpu_puts
****************************************************************************/
static inline void nxpu_puts(NXWINDOW hwnd, FAR struct nxtext_state_s *st,
uint8_t nch, FAR const uint8_t *ch)
{
nxtext_home(st);
while (nch--)
{
nxtext_putc(hwnd, st, g_puhfont, *ch++);
}
}
/****************************************************************************
* Name: nxpu_kbdin
****************************************************************************/
#ifdef CONFIG_NX_KBD
static void nxpu_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
FAR void *arg)
{
FAR struct nxtext_state_s *st = (FAR struct nxtext_state_s *)arg;
gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
nxpu_puts(hwnd, st, nch, ch);
}
#endif
/****************************************************************************
* Name: nxpu_initstate
****************************************************************************/
static inline void nxpu_initstate(void)
{
#ifdef CONFIG_NX_KBD
FAR const struct nx_font_s *fontset;
#endif
/* Initialize the color (used for redrawing the window) */
memset(&g_pustate, 0, sizeof(struct nxtext_state_s));
g_pustate.wcolor[0] = CONFIG_EXAMPLES_NXTEXT_PUCOLOR;
g_pustate.fcolor[0] = CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR;
/* Get information about the font set being used and save this in the
* state structure
*/
#ifdef CONFIG_NX_KBD
fontset = nxf_getfontset(g_puhfont);
g_pustate.fheight = fontset->mxheight;
g_pustate.fwidth = fontset->mxwidth;
g_pustate.spwidth = fontset->spwidth;
/* Set up the text caches */
g_pustate.maxchars = NBM_CACHE;
g_pustate.maxglyphs = NGLYPH_CACHE;
g_pustate.bm = g_pubm;
g_pustate.glyph = g_puglyph;
/* Set the first display position */
nxtext_home(&g_pustate);
#endif
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxpu_open
****************************************************************************/
NXWINDOW nxpu_open(void)
{
NXWINDOW hwnd;
struct nxgl_size_s size;
struct nxgl_point_s pt;
int ret;
/* Create a pop-up window */
message("nxpu_open: Create pop-up\n");
nxpu_initstate();
hwnd = nx_openwindow(g_hnx, &g_pucb, (FAR void *)&g_pustate);
gvdbg("hwnd=%p\n", hwnd);
if (!hwnd)
{
message("nxpu_open: nx_openwindow failed: %d\n", errno);
g_exitcode = NXEXIT_NXOPENWINDOW;
goto errout_with_state;
}
/* Select the size of the pop-up window */
size.w = g_xres / 4;
size.h = g_yres / 4;
/* Select a random position for pop-up window */
pt.x = nxpu_randpos(g_xres - size.w);
pt.y = nxpu_randpos(g_yres - size.h);
/* Set the position for the pop-up window */
message("nxpu_open: Set pop-up postion to (%d,%d)\n", pt.x, pt.y);
ret = nxpu_setposition(hwnd, &pt);
if (ret < 0)
{
goto errout_with_hwnd;
}
/* Set the size of the pop-up window */
gvdbg("Set pop-up size to (%d,%d)\n", size.w, size.h);
ret = nxpu_setsize(hwnd, &size);
if (ret < 0)
{
goto errout_with_hwnd;
}
return hwnd;
errout_with_hwnd:
(void)nx_closewindow(hwnd);
errout_with_state:
return NULL;
}
/****************************************************************************
* Name: nxpu_close
****************************************************************************/
int nxpu_close(NXWINDOW hwnd)
{
int ret;
ret = nx_closewindow(hwnd);
if (ret < 0)
{
message("nxpu_close: nx_closewindow failed: %d\n", errno);
g_exitcode = NXEXIT_NXCLOSEWINDOW;
return ret;
}
return OK;
}
apps/examples/nxtext/nxtext_putc.c
+598
View File
@@ -0,0 +1,598 @@
/****************************************************************************
* examples/nxtext/nxtext_putc.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 <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxtk.h>
#include <nuttx/nx/nxfonts.h>
#include "nxtext_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* Select renderer -- Some additional logic would be required to support
* pixel depths that are not directly addressable (1,2,4, and 24).
*/
#if CONFIG_EXAMPLES_NXTEXT_BPP == 1
# define RENDERER nxf_convert_1bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 2
# define RENDERER nxf_convert_2bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 4
# define RENDERER nxf_convert_4bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 8
# define RENDERER nxf_convert_8bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 16
# define RENDERER nxf_convert_16bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 24
# define RENDERER nxf_convert_24bpp
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 32
# define RENDERER nxf_convert_32bpp
#else
# error "Unsupported CONFIG_EXAMPLES_NXTEXT_BPP"
#endif
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_freeglyph
****************************************************************************/
static void nxtext_freeglyph(FAR struct nxtext_glyph_s *glyph)
{
if (glyph->bitmap)
{
free(glyph->bitmap);
}
memset(glyph, 0, sizeof(struct nxtext_glyph_s));
}
/****************************************************************************
* Name: nxtext_allocglyph
****************************************************************************/
static inline FAR struct nxtext_glyph_s *
nxtext_allocglyph(FAR struct nxtext_state_s *st)
{
FAR struct nxtext_glyph_s *glyph = NULL;
FAR struct nxtext_glyph_s *luglyph = NULL;
uint8_t luusecnt;
int i;
/* Search through the glyph cache looking for an unused glyph. Also, keep
* track of the least used glyph as well. We need that if we have to replace
* a glyph in the cache.
*/
for (i = 0; i < st->maxglyphs; i++)
{
/* Is this glyph in use? */
glyph = &st->glyph[i];
if (!glyph->usecnt)
{
/* No.. return this glyph with a use count of one */
glyph->usecnt = 1;
return glyph;
}
/* Yes.. check for the least recently used */
if (!luglyph || glyph->usecnt < luglyph->usecnt)
{
luglyph = glyph;
}
}
/* If we get here, the glyph cache is full. We replace the least used
* glyph with the one we need now. (luglyph can't be NULL).
*/
luusecnt = luglyph->usecnt;
nxtext_freeglyph(luglyph);
/* But lets decrement all of the usecnts so that the new one one be so
* far behind in the counts as the older ones.
*/
if (luusecnt > 1)
{
uint8_t decr = luusecnt - 1;
for (i = 0; i < st->maxglyphs; i++)
{
/* Is this glyph in use? */
glyph = &st->glyph[i];
if (glyph->usecnt > decr)
{
glyph->usecnt -= decr;
}
}
}
/* Then return the least used glyph */
luglyph->usecnt = 1;
return luglyph;
}
/****************************************************************************
* Name: nxtext_findglyph
****************************************************************************/
static FAR struct nxtext_glyph_s *
nxtext_findglyph(FAR struct nxtext_state_s *st, uint8_t ch)
{
int i;
/* First, try to find the glyph in the cache of pre-rendered glyphs */
for (i = 0; i < st->maxglyphs; i++)
{
FAR struct nxtext_glyph_s *glyph = &st->glyph[i];
if (glyph->usecnt > 0 && glyph->code == ch)
{
/* Increment the use count (unless it is already at the max) */
if (glyph->usecnt < MAX_USECNT)
{
glyph->usecnt++;
}
/* And return the glyph that we found */
return glyph;
}
}
return NULL;
}
/****************************************************************************
* Name: nxtext_renderglyph
****************************************************************************/
static inline FAR struct nxtext_glyph_s *
nxtext_renderglyph(FAR struct nxtext_state_s *st,
FAR const struct nx_fontbitmap_s *fbm, uint8_t ch)
{
FAR struct nxtext_glyph_s *glyph = NULL;
FAR nxgl_mxpixel_t *ptr;
#if CONFIG_EXAMPLES_NXTEXT_BPP < 8
nxgl_mxpixel_t pixel;
#endif
int bmsize;
int row;
int col;
int ret;
/* Make sure that there is room for another glyph */
gvdbg("ch=%c [%02x]\n", isprint(ch) ? ch : '.', ch);
/* Allocate the glyph (always succeeds) */
glyph = nxtext_allocglyph(st);
glyph->code = ch;
/* Get the dimensions of the glyph */
glyph->width = fbm->metric.width + fbm->metric.xoffset;
glyph->height = fbm->metric.height + fbm->metric.yoffset;
/* Allocate memory to hold the glyph with its offsets */
glyph->stride = (glyph->width * CONFIG_EXAMPLES_NXTEXT_BPP + 7) / 8;
bmsize = glyph->stride * glyph->height;
glyph->bitmap = (FAR uint8_t *)malloc(bmsize);
if (glyph->bitmap)
{
/* Initialize the glyph memory to the background color */
#if CONFIG_EXAMPLES_NXTEXT_BPP < 8
pixel = st->wcolor[0];
# if CONFIG_EXAMPLES_NXTEXT_BPP == 1
/* Pack 1-bit pixels into a 2-bits */
pixel &= 0x01;
pixel = (pixel) << 1 |pixel;
# endif
# if CONFIG_EXAMPLES_NXTEXT_BPP < 4
/* Pack 2-bit pixels into a nibble */
pixel &= 0x03;
pixel = (pixel) << 2 |pixel;
# endif
/* Pack 4-bit nibbles into a byte */
pixel &= 0x0f;
pixel = (pixel) << 4 | pixel;
ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap;
for (row = 0; row < glyph->height; row++)
{
for (col = 0; col < glyph->stride; col++)
{
/* Transfer the packed bytes into the buffer */
*ptr++ = pixel;
}
}
#elif CONFIG_EXAMPLES_NXTEXT_BPP == 24
# error "Additional logic is needed here for 24bpp support"
#else /* CONFIG_EXAMPLES_NXTEXT_BPP = {8,16,32} */
ptr = (FAR nxgl_mxpixel_t *)glyph->bitmap;
for (row = 0; row < glyph->height; row++)
{
/* Just copy the color value into the glyph memory */
for (col = 0; col < glyph->width; col++)
{
*ptr++ = st->wcolor[0];
}
}
#endif
/* Then render the glyph into the allocated memory */
ret = RENDERER((FAR nxgl_mxpixel_t*)glyph->bitmap,
glyph->height, glyph->width, glyph->stride,
fbm, st->fcolor[0]);
if (ret < 0)
{
/* Actually, the RENDERER never returns a failure */
message("nxtext_renderglyph: RENDERER failed\n");
nxtext_freeglyph(glyph);
glyph = NULL;
}
}
return glyph;
}
/****************************************************************************
* Name: nxtext_fontsize
****************************************************************************/
static int nxtext_fontsize(NXHANDLE hfont, uint8_t ch, FAR struct nxgl_size_s *size)
{
FAR const struct nx_fontbitmap_s *fbm;
/* No, it is not cached... Does the code map to a font? */
fbm = nxf_getbitmap(hfont, ch);
if (fbm)
{
/* Yes.. return the font size */
size->w = fbm->metric.width + fbm->metric.xoffset;
size->h = fbm->metric.height + fbm->metric.yoffset;
return OK;
}
return ERROR;
}
/****************************************************************************
* Name: nxtext_getglyph
****************************************************************************/
static FAR struct nxtext_glyph_s *
nxtext_getglyph(NXHANDLE hfont, FAR struct nxtext_state_s *st, uint8_t ch)
{
FAR struct nxtext_glyph_s *glyph;
FAR const struct nx_fontbitmap_s *fbm;
/* First, try to find the glyph in the cache of pre-rendered glyphs */
glyph = nxtext_findglyph(st, ch);
if (!glyph)
{
/* No, it is not cached... Does the code map to a font? */
fbm = nxf_getbitmap(hfont, ch);
if (fbm)
{
/* Yes.. render the glyph */
glyph = nxtext_renderglyph(st, fbm, ch);
}
}
return glyph;
}
/****************************************************************************
* Name: nxtext_addchar
*
* Description:
* This is part of the nxtext_putc logic. It creates and positions a
* the character and renders (or re-uses) a glyph for font.
*
****************************************************************************/
static FAR const struct nxtext_bitmap_s *
nxtext_addchar(NXHANDLE hfont, FAR struct nxtext_state_s *st, uint8_t ch)
{
FAR struct nxtext_bitmap_s *bm = NULL;
FAR struct nxtext_glyph_s *glyph;
/* Is there space for another character on the display? */
if (st->nchars < st->maxchars)
{
/* Yes, setup the bitmap information */
bm = &st->bm[st->nchars];
bm->code = ch;
bm->flags = 0;
bm->pos.x = st->fpos.x;
bm->pos.y = st->fpos.y;
/* Find (or create) the matching glyph */
glyph = nxtext_getglyph(hfont, st, ch);
if (!glyph)
{
/* No, there is no font for this code. Just mark this as a space. */
bm->flags |= BMFLAGS_NOGLYPH;
/* Set up the next character position */
st->fpos.x += st->spwidth;
}
else
{
/* Set up the next character position */
st->fpos.x += glyph->width;
}
/* Success.. increment nchars to retain this character */
st->nchars++;
}
return bm;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_home
*
* Description:
* Set the next character position to the top-left corner of the display.
*
****************************************************************************/
void nxtext_home(FAR struct nxtext_state_s *st)
{
/* The first character is one space from the left */
st->fpos.x = st->spwidth;
/* And LINE_SEPARATION lines from the top */
st->fpos.y = LINE_SEPARATION;
}
/****************************************************************************
* Name: nxtext_newline
*
* Description:
* Set the next character position to the beginning of the next line.
*
****************************************************************************/
void nxtext_newline(FAR struct nxtext_state_s *st)
{
/* Carriage return: The first character is one space from the left */
st->fpos.x = st->spwidth;
/* Linefeed: Down the max font height + LINE_SEPARATION */
st->fpos.y += (st->fheight + LINE_SEPARATION);
}
/****************************************************************************
* Name: nxtext_putc
*
* Description:
* Render the specified character at the current display position.
*
****************************************************************************/
void nxtext_putc(NXWINDOW hwnd, FAR struct nxtext_state_s *st, NXHANDLE hfont, uint8_t ch)
{
FAR const struct nxtext_bitmap_s *bm;
/* If it is a newline character, then just perform the logical newline
* operation.
*/
if (ch == '\n')
{
nxtext_newline(st);
}
/* Otherwise, find the glyph associated with the character and render it
* onto the display.
*/
else
{
bm = nxtext_addchar(hfont, st, ch);
if (bm)
{
nxtext_fillchar(hwnd, NULL, st, hfont, bm);
}
}
}
/****************************************************************************
* Name: nxtext_fillchar
*
* Description:
* This implements the character display. It is part of the nxtext_putc
* operation but may also be used when redrawing an existing display.
*
****************************************************************************/
void nxtext_fillchar(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
FAR struct nxtext_state_s *st,
NXHANDLE hfont, FAR const struct nxtext_bitmap_s *bm)
{
FAR struct nxtext_glyph_s *glyph;
struct nxgl_rect_s bounds;
struct nxgl_rect_s intersection;
struct nxgl_size_s fsize;
int ret;
/* Handle the special case of spaces which have no glyph bitmap */
if (BM_ISSPACE(bm))
{
return;
}
/* Get the size of the font glyph (which may not have been created yet) */
ret = nxtext_fontsize(hfont, bm->code, &fsize);
if (ret < 0)
{
/* This would mean that there is no bitmap for the character code and
* that the font would be rendered as a space. But this case should
* never happen here because the BM_ISSPACE() should have already
* found all such cases.
*/
return;
}
/* Construct a bounding box for the glyph */
bounds.pt1.x = bm->pos.x;
bounds.pt1.y = bm->pos.y;
bounds.pt2.x = bm->pos.x + fsize.w - 1;
bounds.pt2.y = bm->pos.y + fsize.h - 1;
/* Should this also be clipped to a region in the window? */
if (rect)
{
/* Get the intersection of the redraw region and the character bitmap */
nxgl_rectintersect(&intersection, rect, &bounds);
}
else
{
/* The intersection is the whole glyph */
nxgl_rectcopy(&intersection, &bounds);
}
/* Check for empty intersections */
if (!nxgl_nullrect(&intersection))
{
FAR const void *src;
/* Find (or create) the glyph that goes with this font */
glyph = nxtext_getglyph(hfont, st, bm->code);
if (!glyph)
{
/* Shouldn't happen */
return;
}
/* Blit the font bitmap into the window */
src = (FAR const void *)glyph->bitmap;
ret = nx_bitmap((NXWINDOW)hwnd, &intersection, &src,
&bm->pos, (unsigned int)glyph->stride);
if (ret < 0)
{
message("nxtext_fillchar: nx_bitmapwindow failed: %d\n", errno);
}
}
}
apps/examples/nxtext/nxtext_server.c
+194
View File
@@ -0,0 +1,194 @@
/****************************************************************************
* examples/nxtext/nxtext_server.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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sched.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/nx/nx.h>
#ifdef CONFIG_NX_LCDDRIVER
# include <nuttx/lcd/lcd.h>
#else
# include <nuttx/fb.h>
#endif
#include "nxtext_internal.h"
#ifdef CONFIG_NX_MULTIUSER
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_server
****************************************************************************/
int nxtext_server(int argc, char *argv[])
{
FAR NX_DRIVERTYPE *dev;
int ret;
#if defined(CONFIG_EXAMPLES_NXTEXT_EXTERNINIT)
/* Use external graphics driver initialization */
message("nxtext_server: Initializing external graphics device\n");
dev = up_nxdrvinit(CONFIG_EXAMPLES_NXTEXT_DEVNO);
if (!dev)
{
message("nxtext_server: up_nxdrvinit failed, devno=%d\n", CONFIG_EXAMPLES_NXTEXT_DEVNO);
g_exitcode = NXEXIT_EXTINITIALIZE;
return ERROR;
}
#elif defined(CONFIG_NX_LCDDRIVER)
/* Initialize the LCD device */
message("nxtext_server: Initializing LCD\n");
ret = up_lcdinitialize();
if (ret < 0)
{
message("nxtext_server: up_lcdinitialize failed: %d\n", -ret);
return 1;
}
/* Get the device instance */
dev = up_lcdgetdev(CONFIG_EXAMPLES_NXTEXT_DEVNO);
if (!dev)
{
message("nxtext_server: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXTEXT_DEVNO);
return 2;
}
/* Turn the LCD on at 75% power */
(void)dev->setpower(dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4));
#else
/* Initialize the frame buffer device */
message("nxtext_server: Initializing framebuffer\n");
ret = up_fbinitialize();
if (ret < 0)
{
message("nxtext_server: up_fbinitialize failed: %d\n", -ret);
return 1;
}
dev = up_fbgetvplane(CONFIG_EXAMPLES_NXTEXT_VPLANE);
if (!dev)
{
message("nxtext_server: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXTEXT_VPLANE);
return 2;
}
#endif
/* Then start the server */
ret = nx_run(dev);
gvdbg("nx_run returned: %d\n", errno);
return 3;
}
/****************************************************************************
* Name: nxtext_listener
****************************************************************************/
FAR void *nxtext_listener(FAR void *arg)
{
int ret;
/* Process events forever */
for (;;)
{
/* Handle the next event. If we were configured blocking, then
* we will stay right here until the next event is received. Since
* we have dedicated a while thread to servicing events, it would
* be most natural to also select CONFIG_NX_BLOCKING -- if not, the
* following would be a tight infinite loop (unless we added addition
* logic with nx_eventnotify and sigwait to pace it).
*/
ret = nx_eventhandler(g_hnx);
if (ret < 0)
{
/* An error occurred... assume that we have lost connection with
* the server.
*/
message("nxtext_listener: Lost server connection: %d\n", errno);
exit(NXEXIT_LOSTSERVERCONN);
}
/* If we received a message, we must be connected */
if (!g_connected)
{
g_connected = true;
sem_post(&g_semevent);
message("nxtext_listener: Connected\n");
}
}
}
#endif /* CONFIG_NX_MULTIUSER */