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Font cache: Add debug output; fix initialization of a semaphore.

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This commit is contained in:
Gregory Nutt 2017-01-06 11:36:05 -06:00
parent 725ba1602a
commit 4e0e18f659
1 changed files with 27 additions and 0 deletions
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27
libnx/nxfonts/nxfonts_cache.c
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@ -187,6 +187,8 @@ static inline void nxf_removeglyph(FAR struct nxfonts_fcache_s *priv,
FAR struct nxfonts_glyph_s *glyph,
FAR struct nxfonts_glyph_s *prev)
{
ginfo("fcache=%p glyph=%p\n", priv, glyph);
/* Remove the glyph for the list. First check for removal from the head */
if (prev == NULL)
@ -239,6 +241,8 @@ static inline void nxf_removeglyph(FAR struct nxfonts_fcache_s *priv,
static inline void nxf_addglyph(FAR struct nxfonts_fcache_s *priv,
FAR struct nxfonts_glyph_s *glyph)
{
ginfo("fcache=%p glyph=%p\n", priv, glyph);
/* Add the glyph to the head of the list */
glyph->flink = priv->head;
@ -284,6 +288,9 @@ nxf_findglyph(FAR struct nxfonts_fcache_s *priv, uint8_t ch)
FAR struct nxfonts_glyph_s *glyph;
FAR struct nxfonts_glyph_s *prev;
ginfo("fcache=%p ch=%c (%02x)\n",
priv, (ch >= 32 && ch < 128) ? ch : '.', ch);
/* Try to find the glyph in the list of pre-rendered glyphs */
for (prev = NULL, glyph = priv->head;
@ -509,6 +516,9 @@ nxf_renderglyph(FAR struct nxfonts_fcache_s *priv,
unsigned int stride;
int ret;
ginfo("fcache=%p fbm=%p ch=%c (%02x)\n",
priv, fbm, (ch >= 32 && ch < 128) ? ch : '.', ch);
/* Get the size of the glyph */
width = fbm->metric.width + fbm->metric.xoffset;
@ -575,6 +585,9 @@ nxf_findcache(enum nx_fontid_e fontid, nxgl_mxpixel_t fgcolor,
{
FAR struct nxfonts_fcache_s *fcache;
ginfo("fontid=%p fgcolor=%u bgcolor=%u bpp=%d\n",
fontid, fgcolor, bgcolor, bpp);
/* Search for a cache for this font characteristics */
for (fcache = g_fcaches; fcache != NULL; fcache = fcache->flink)
@ -588,10 +601,12 @@ nxf_findcache(enum nx_fontid_e fontid, nxgl_mxpixel_t fgcolor,
{
/* Yes... return it */
ginfo("Returning fcache=%p\n", fcache);
return fcache;
}
}
ginfo("Not found\n");
return NULL;
}
@ -629,6 +644,9 @@ FCACHE nxf_cache_connect(enum nx_fontid_e fontid,
FAR struct nxfonts_fcache_s *priv;
int errcode;
ginfo("fontid=%p fgcolor=%u bgcolor=%u bpp=%d maxglyphs=%d\n",
fontid, fgcolor, bgcolor, bpp, maxglyphs);
/* Get exclusive access to the font cache list */
nxf_list_lock();
@ -721,6 +739,10 @@ FCACHE nxf_cache_connect(enum nx_fontid_e fontid,
goto errout_with_fcache;
}
/* Initialize the mutual exclusion semaphore */
sem_init(&priv->fsem, 0, 1);
/* Add the new font cache to the list of font caches */
priv->flink = g_fcaches;
@ -739,6 +761,7 @@ FCACHE nxf_cache_connect(enum nx_fontid_e fontid,
}
nxf_list_unlock();
ginfo("fhandle=%p\n", priv);
return (FCACHE)priv;
errout_with_fcache:
@ -773,6 +796,8 @@ void nxf_cache_disconnect(FCACHE fhandle)
FAR struct nxfonts_glyph_s *glyph;
FAR struct nxfonts_glyph_s *next;
ginfo("fhandle=%p\n", fhandle);
DEBUGASSERT(priv != NULL && priv->fclients > 0);
/* Get exclusive access to the font cache */
@ -872,6 +897,8 @@ FAR const struct nxfonts_glyph_s *nxf_cache_getglyph(FCACHE fhandle, uint8_t ch)
FAR struct nxfonts_glyph_s *glyph;
FAR const struct nx_fontbitmap_s *fbm;
ginfo("ch=%c (%02x)\n", (ch >= 32 && ch < 128) ? ch : '.', ch);
/* Get exclusive access to the font cache */
nxf_cache_lock(priv);