static void
glamor_get_glyphs(FontPtr font, glamor_font_t *glamor_font,
int count, char *chars, Bool sixteen, CharInfoPtr *charinfo)
{
unsigned long nglyphs;
FontEncoding encoding;
int char_step;
int c;
if (sixteen) {
char_step = 2;
if (FONTLASTROW(font) == 0)
encoding = Linear16Bit;
else
encoding = TwoD16Bit;
} else {
char_step = 1;
encoding = Linear8Bit;
}
/* If the font has a default character, then we shouldn't have to
* worry about missing glyphs, so just get the whole string all at
* once. Otherwise, we have to fetch chars one at a time to notice
* missing ones.
*/
if (glamor_font->default_char) {
GetGlyphs(font, (unsigned long) count, (unsigned char *) chars,
encoding, &nglyphs, charinfo);
/* Make sure it worked. There's a bug in libXfont through
* version 1.4.7 which would cause it to fail when the font is
* a 2D font without a first row, and the application sends a
* 1-d request. In this case, libXfont would return zero
* glyphs, even when the font had a default character.
*
* It's easy enough for us to work around that bug here by
* simply checking the returned nglyphs and falling through to
* the one-at-a-time code below. Not doing this check would
* result in uninitialized memory accesses in the rendering code.
*/
if (nglyphs == count)
return;
}
for (c = 0; c < count; c++) {
GetGlyphs(font, 1, (unsigned char *) chars,
encoding, &nglyphs, &charinfo[c]);
if (!nglyphs)
charinfo[c] = NULL;
chars += char_step;
}
}
/** Render string of 16-bit \a chars (foreground only) in \a pDrawable
* on the back-end server associated with \a pDrawable's screen. If
* the offscreen optimization is enabled, only draw when \a pDrawable
* is at least partially visible. */
int dmxPolyText16(DrawablePtr pDrawable, GCPtr pGC,
int x, int y, int count, unsigned short *chars)
{
DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
unsigned long n, i;
int w;
CharInfoPtr charinfo[255];
Drawable draw;
GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
(FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit,
&n, charinfo);
/* Calculate text width */
w = 0;
for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
XDrawString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
x, y, (XChar2b *)chars, count);
dmxSync(dmxScreen, FALSE);
}
return x+w;
}
static void
glamor_get_glyphs(FontPtr font, glamor_font_t *glamor_font,
int count, char *chars, Bool sixteen, CharInfoPtr *charinfo)
{
unsigned long nglyphs;
FontEncoding encoding;
int char_step;
if (sixteen) {
char_step = 2;
if (FONTLASTROW(font) == 0)
encoding = Linear16Bit;
else
encoding = TwoD16Bit;
} else {
char_step = 1;
encoding = Linear8Bit;
}
/* If the font has a default character, then we don't have to
* worry about missing glyphs, so just get the whole string all at
* once. Otherwise, we have to fetch chars one at a time to notice
* missing ones.
*/
if (glamor_font->default_char) {
GetGlyphs(font, (unsigned long) count, (unsigned char *) chars,
encoding, &nglyphs, charinfo);
} else {
int c;
for (c = 0; c < count; c++) {
GetGlyphs(font, 1, (unsigned char *) chars,
encoding, &nglyphs, &charinfo[c]);
if (!nglyphs)
charinfo[c] = NULL;
chars += char_step;
}
}
}
