static void
hangul_engine_shape (PangoEngineShape *engine,
PangoFont *font,
const char *text,
gint length,
const PangoAnalysis *analysis,
PangoGlyphString *glyphs)
{
int n_chars, n_glyphs;
int i;
const char *p, *start;
gunichar jamos_static[8];
gint max_jamos = G_N_ELEMENTS (jamos_static);
gunichar *jamos = jamos_static;
int n_jamos;
n_chars = g_utf8_strlen (text, length);
n_glyphs = 0;
start = p = text;
n_jamos = 0;
for (i = 0; i < n_chars; i++)
{
gunichar wc;
wc = g_utf8_get_char (p);
/* Check syllable boundaries. */
if (n_jamos)
{
gunichar prev = jamos[n_jamos - 1];
if ((!IS_JAMO (wc) && !IS_S (wc) && !IS_M (wc)) ||
(!IS_L (prev) && IS_S (wc)) ||
(IS_T (prev) && IS_L (wc)) ||
(IS_V (prev) && IS_L (wc)) ||
(IS_T (prev) && IS_V (wc)) ||
IS_M (prev))
{
/* Draw a syllable with these jamos. */
render_syllable (font, jamos, n_jamos, glyphs,
&n_glyphs, start - text);
n_jamos = 0;
start = p;
}
}
if (n_jamos >= max_jamos - 3)
{
max_jamos += 8; /* at most 3 for each syllable code (L+V+T) */
if (jamos == jamos_static)
{
jamos = g_new (gunichar, max_jamos);
memcpy (jamos, jamos_static, n_jamos*sizeof(gunichar));
}
else
jamos = g_renew (gunichar, jamos, max_jamos);
}
if (!IS_JAMO (wc) && !IS_S (wc) && !IS_M (wc))
{
render_basic (font, wc, glyphs, &n_glyphs, start - text);
start = g_utf8_next_char (p);
}
else if (IS_S (wc))
{
jamos[n_jamos++] = L_FROM_S (wc);
jamos[n_jamos++] = V_FROM_S (wc);
if (S_HAS_T (wc))
jamos[n_jamos++] = T_FROM_S (wc);
}
else if (IS_M (wc) && !n_jamos)
{
/* Tone mark not following syllable */
render_isolated_tone (font, wc, glyphs, &n_glyphs, start - text);
start = g_utf8_next_char (p);
}
else
jamos[n_jamos++] = wc;
p = g_utf8_next_char (p);
}
if (n_jamos != 0)
render_syllable (font, jamos, n_jamos, glyphs, &n_glyphs,
start - text);
if (jamos != jamos_static)
g_free(jamos);
}
static void
hangul_engine_shape (PangoEngineShape *engine,
PangoFont *font,
const char *text,
gint length,
const PangoAnalysis *analysis,
PangoGlyphString *glyphs)
{
int n_chars = g_utf8_strlen (text, length);
int n_glyphs;
int i;
const char *p, *start;
int n_jamos;
gunichar prev = 0;
n_glyphs = 0;
start = p = text;
n_jamos = 0;
for (i = 0; i < n_chars; i++)
{
gunichar wc;
wc = g_utf8_get_char (p);
/* Check syllable boundaries. */
if (n_jamos && IS_BOUNDARY (prev, wc))
{
if (n_jamos == 1 && IS_S (prev))
/* common case which the most people use */
render_basic (font, prev, glyphs, &n_glyphs, start - text);
else
/* possibly complex composition */
render_syllable (font, start, n_jamos, glyphs,
&n_glyphs, start - text);
n_jamos = 0;
start = p;
}
prev = wc;
if (!IS_HANGUL (wc))
{
render_basic (font, wc, glyphs, &n_glyphs, start - text);
start = g_utf8_next_char (p);
}
else if (IS_M (wc) && !n_jamos)
{
/* Tone mark not following syllable */
render_isolated_tone (font, wc, glyphs, &n_glyphs, start - text);
start = g_utf8_next_char (p);
}
else
n_jamos++;
p = g_utf8_next_char (p);
}
if (n_jamos == 1 && IS_S (prev))
render_basic (font, prev, glyphs, &n_glyphs, start - text);
else if (n_jamos > 0)
render_syllable (font, start, n_jamos, glyphs, &n_glyphs,
start - text);
}
