static void nxeg_initstate(FAR struct nxeg_state_s *st, int wnum,
nxgl_mxpixel_t color)
{
#ifdef CONFIG_NX_KBD
FAR const struct nx_font_s *fontset;
#endif
/* Initialize the window number (used for debug output only) and color
* (used for redrawing the window)
*/
st->wnum = wnum;
st->color[0] = color;
/* Get information about the font set being used and save this in the
* state structure
*/
#ifdef CONFIG_NX_KBD
fontset = nxf_getfontset(g_fonthandle);
st->nchars = 0;
st->nglyphs = 0;
st->height = fontset->mxheight;
st->width = fontset->mxwidth;
st->spwidth = fontset->spwidth;
#endif
}
FAR struct nxterm_state_s *
nxterm_register(NXTERM handle, FAR struct nxterm_window_s *wndo,
FAR const struct nxterm_operations_s *ops, int minor)
{
FAR struct nxterm_state_s *priv;
FAR const struct nx_font_s *fontset;
char devname[NX_DEVNAME_SIZE];
NXHANDLE hfont;
int ret;
DEBUGASSERT(handle && wndo && ops && (unsigned)minor < 256);
/* Allocate the driver structure */
priv = (FAR struct nxterm_state_s *)kmm_zalloc(sizeof(struct nxterm_state_s));
if (!priv)
{
gerr("ERROR: Failed to allocate the NX driver structure\n");
return NULL;
}
/* Initialize the driver structure */
priv->ops = ops;
priv->handle = handle;
priv->minor = minor;
memcpy(&priv->wndo, wndo, sizeof(struct nxterm_window_s));
nxsem_init(&priv->exclsem, 0, 1);
#ifdef CONFIG_DEBUG_FEATURES
priv->holder = NO_HOLDER;
#endif
#ifdef CONFIG_NXTERM_NXKBDIN
/* The waitsem semaphore is used for signaling and, hence, should not have
* priority inheritance enabled.
*/
nxsem_init(&priv->waitsem, 0, 0);
nxsem_setprotocol(&priv->waitsem, SEM_PRIO_NONE);
#endif
/* Connect to the font cache for the configured font characteristics */
priv->fcache = nxf_cache_connect(wndo->fontid, wndo->fcolor[0],
wndo->wcolor[0], CONFIG_NXTERM_BPP,
CONFIG_NXTERM_CACHESIZE);
if (priv->fcache == NULL)
{
gerr("ERROR: Failed to connect to font cache for font ID %d: %d\n",
wndo->fontid, errno);
goto errout;
}
/* Get the handle of the font managed by the font cache */
hfont = nxf_cache_getfonthandle(priv->fcache);
if (hfont == NULL)
{
gerr("ERROR: Failed to get handlr for font ID %d: %d\n",
wndo->fontid, errno);
goto errout;
}
/* Get information about the font set being used and save this in the
* state structure
*/
fontset = nxf_getfontset(hfont);
priv->fheight = fontset->mxheight;
priv->fwidth = fontset->mxwidth;
priv->spwidth = fontset->spwidth;
/* Set up the text cache */
priv->maxchars = CONFIG_NXTERM_MXCHARS;
/* Set the initial display position */
nxterm_home(priv);
/* Show the cursor */
priv->cursor.code = CONFIG_NXTERM_CURSORCHAR;
nxterm_showcursor(priv);
/* Register the driver */
snprintf(devname, NX_DEVNAME_SIZE, NX_DEVNAME_FORMAT, minor);
ret = register_driver(devname, &g_nxterm_drvrops, 0666, priv);
if (ret < 0)
{
gerr("ERROR: Failed to register %s\n", devname);
}
return (NXTERM)priv;
errout:
kmm_free(priv);
return NULL;
}
void nxhello_hello(NXWINDOW hwnd)
{
FAR const struct nx_font_s *fontset;
FAR const struct nx_fontbitmap_s *fbm;
FAR uint8_t *glyph;
FAR const char *ptr;
FAR struct nxgl_point_s pos;
FAR struct nxgl_rect_s dest;
FAR const void *src[CONFIG_NX_NPLANES];
unsigned int glyphsize;
unsigned int mxstride;
int ret;
/* Get information about the font we are going to use */
fontset = nxf_getfontset(g_nxhello.hfont);
/* Allocate a bit of memory to hold the largest rendered font */
mxstride = (fontset->mxwidth * CONFIG_EXAMPLES_NXHELLO_BPP + 7) >> 3;
glyphsize = (unsigned int)fontset->mxheight * mxstride;
glyph = (FAR uint8_t*)malloc(glyphsize);
/* NOTE: no check for failure to allocate the memory. In a real application
* you would need to handle that event.
*/
/* Get a position so the the "Hello, World!" string will be centered on the
* display.
*/
nxhello_center(&pos, fontset);
message("nxhello_hello: Position (%d,%d)\n", pos.x, pos.y);
/* Now we can say "hello" in the center of the display. */
for (ptr = g_hello; *ptr; ptr++)
{
/* Get the bitmap font for this ASCII code */
fbm = nxf_getbitmap(g_nxhello.hfont, *ptr);
if (fbm)
{
uint8_t fheight; /* Height of this glyph (in rows) */
uint8_t fwidth; /* Width of this glyph (in pixels) */
uint8_t fstride; /* Width of the glyph row (in bytes) */
/* Get information about the font bitmap */
fwidth = fbm->metric.width + fbm->metric.xoffset;
fheight = fbm->metric.height + fbm->metric.yoffset;
fstride = (fwidth * CONFIG_EXAMPLES_NXHELLO_BPP + 7) >> 3;
/* Initialize the glyph memory to the background color */
nxhello_initglyph(glyph, fheight, fwidth, fstride);
/* Then render the glyph into the allocated memory */
#if CONFIG_NX_NPLANES > 1
# warning "More logic is needed for the case where CONFIG_NX_PLANES > 1"
#endif
(void)RENDERER((FAR nxgl_mxpixel_t*)glyph, fheight, fwidth,
fstride, fbm, CONFIG_EXAMPLES_NXHELLO_FONTCOLOR);
/* Describe the destination of the font with a rectangle */
dest.pt1.x = pos.x;
dest.pt1.y = pos.y;
dest.pt2.x = pos.x + fwidth - 1;
dest.pt2.y = pos.y + fheight - 1;
/* Then put the font on the display */
src[0] = (FAR const void *)glyph;
#if CONFIG_NX_NPLANES > 1
# warning "More logic is needed for the case where CONFIG_NX_PLANES > 1"
#endif
ret = nx_bitmap((NXWINDOW)hwnd, &dest, src, &pos, fstride);
if (ret < 0)
{
message("nxhello_write: nx_bitmapwindow failed: %d\n", errno);
}
/* Skip to the right the width of the font */
pos.x += fwidth;
}
else
{
/* No bitmap (probably because the font is a space). Skip to the
* right the width of a space.
*/
pos.x += fontset->spwidth;
}
}
FAR struct nxcon_state_s *
nxcon_register(NXCONSOLE handle, FAR struct nxcon_window_s *wndo,
FAR const struct nxcon_operations_s *ops, int minor)
{
FAR struct nxcon_state_s *priv;
char devname[NX_DEVNAME_SIZE];
int ret;
DEBUGASSERT(handle && wndo && ops && (unsigned)minor < 256);
/* Allocate the driver structure */
priv = (FAR struct nxcon_state_s *)kzalloc(sizeof(struct nxcon_state_s));
if (!priv)
{
gdbg("Failed to allocate the NX driver structure\n");
return NULL;
}
/* Initialize the driver structure */
priv->ops = ops;
priv->handle = handle;
priv->minor = minor;
memcpy(&priv->wndo, wndo, sizeof( struct nxcon_window_s));
sem_init(&priv->exclsem, 0, 1);
#ifdef CONFIG_DEBUG
priv->holder = NO_HOLDER;
#endif
#ifdef CONFIG_NXCONSOLE_NXKBDIN
sem_init(&priv->waitsem, 0, 0);
#endif
/* Select the font */
priv->font = nxf_getfonthandle(wndo->fontid);
if (!priv->font)
{
gdbg("Failed to get font ID %d: %d\n", wndo->fontid, errno);
goto errout;
}
FAR const struct nx_font_s *fontset;
/* Get information about the font set being used and save this in the
* state structure
*/
fontset = nxf_getfontset(priv->font);
priv->fheight = fontset->mxheight;
priv->fwidth = fontset->mxwidth;
priv->spwidth = fontset->spwidth;
/* Set up the text cache */
priv->maxchars = CONFIG_NXCONSOLE_MXCHARS;
/* Set up the font glyph bitmap cache */
priv->maxglyphs = CONFIG_NXCONSOLE_CACHESIZE;
/* Set the initial display position */
nxcon_home(priv);
/* Show the cursor */
priv->cursor.code = CONFIG_NXCONSOLE_CURSORCHAR;
nxcon_showcursor(priv);
/* Register the driver */
snprintf(devname, NX_DEVNAME_SIZE, NX_DEVNAME_FORMAT, minor);
ret = register_driver(devname, &g_nxcon_drvrops, 0666, priv);
if (ret < 0)
{
gdbg("Failed to register %s\n", devname);
}
return (NXCONSOLE)priv;
errout:
kfree(priv);
return NULL;
}
