/////////////////////////////////
// font_config_magic_class methods
font_config_magic_class::
font_config_magic_class(void)
{
FcPattern *fc_pattern;
FcObjectSet *fc_object_set;
/*
require those fonts that are both scalable
and outline fonts.
*/
fc_pattern=FcPatternCreate();
FcPatternAddBool(fc_pattern, FC_OUTLINE, FcTrue);
FcPatternAddBool(fc_pattern, FC_SCALABLE, FcTrue);
/*
add the properties we care about to fc_object_set
*/
const char *fc_properties[]=
{
FC_FAMILY, FC_WEIGHT, FC_SLANT,
FC_FILE, FC_INDEX, FC_FOUNDRY,
FC_SCALABLE, FC_OUTLINE,
FC_LANG, FC_STYLE,
NULL
};
fc_object_set=FcObjectSetCreate();
for(const char **iter=fc_properties; *iter!=NULL; ++iter)
{
FcObjectSetAdd(fc_object_set, *iter);
}
/*
get a list of fonts from the default
font configuration which are scalable
outline fonts.
*/
m_fc_font_list=FcFontList(NULL, fc_pattern, fc_object_set);
for(int i=0; i<m_fc_font_list->nfont; ++i)
{
add_entry(m_fc_font_list->fonts[i]);
}
FcPatternDestroy(fc_pattern);
FcObjectSetDestroy(fc_object_set);
/*
for(FontList::const_iterator iter=m_font_list.begin(),
end=m_font_list.end(); iter!=end; ++iter)
{
print_pretty_formatted(std::cout, iter->second);
}
*/
}
static void
xftfont_fix_match (FcPattern *pat, FcPattern *match)
{
/* These values are not used for matching (except antialias), but for
rendering, so make sure they are carried over to the match.
We also put antialias here because most fonts are antialiased, so
the match will have antialias true. */
FcBool b = FcTrue;
int i;
double dpi;
FcPatternGetBool (pat, FC_ANTIALIAS, 0, &b);
if (! b)
{
FcPatternDel (match, FC_ANTIALIAS);
FcPatternAddBool (match, FC_ANTIALIAS, FcFalse);
}
FcPatternGetBool (pat, FC_HINTING, 0, &b);
if (! b)
{
FcPatternDel (match, FC_HINTING);
FcPatternAddBool (match, FC_HINTING, FcFalse);
}
#ifndef FC_HINT_STYLE
# define FC_HINT_STYLE "hintstyle"
#endif
if (FcResultMatch == FcPatternGetInteger (pat, FC_HINT_STYLE, 0, &i))
{
FcPatternDel (match, FC_HINT_STYLE);
FcPatternAddInteger (match, FC_HINT_STYLE, i);
}
#ifndef FC_LCD_FILTER
/* Older fontconfig versions don't have FC_LCD_FILTER. */
#define FC_LCD_FILTER "lcdfilter"
#endif
if (FcResultMatch == FcPatternGetInteger (pat, FC_LCD_FILTER, 0, &i))
{
FcPatternDel (match, FC_LCD_FILTER);
FcPatternAddInteger (match, FC_LCD_FILTER, i);
}
if (FcResultMatch == FcPatternGetInteger (pat, FC_RGBA, 0, &i))
{
FcPatternDel (match, FC_RGBA);
FcPatternAddInteger (match, FC_RGBA, i);
}
if (FcResultMatch == FcPatternGetDouble (pat, FC_DPI, 0, &dpi))
{
FcPatternDel (match, FC_DPI);
FcPatternAddDouble (match, FC_DPI, dpi);
}
}
static void PangoSubstitute(FcPattern *pattern,void *context)
{
const char
*option;
option=(const char *) context;
if (option == (const char *) NULL)
return;
FcPatternDel(pattern,FC_HINTING);
FcPatternAddBool(pattern, FC_HINTING,LocaleCompare(option,"none") != 0);
FcPatternDel(pattern,FC_AUTOHINT);
FcPatternAddBool(pattern,FC_AUTOHINT,LocaleCompare(option,"auto") == 0);
}
static void
substitute_func (FcPattern *pattern,
gpointer data)
{
if (opt_hinting != HINT_DEFAULT)
{
FcPatternDel (pattern, FC_HINTING);
FcPatternAddBool (pattern, FC_HINTING, opt_hinting != HINT_NONE);
FcPatternDel (pattern, FC_AUTOHINT);
FcPatternAddBool (pattern, FC_AUTOHINT, opt_hinting == HINT_AUTO);
}
}
static XftFont* open_pattern(FcPattern* pattern, Antialiasing antialiasing, Hinting hinting)
{
#ifdef FC_HINT_STYLE
static const int hintstyles[] = {
FC_HINT_NONE, FC_HINT_SLIGHT, FC_HINT_MEDIUM, FC_HINT_FULL
};
#endif /* FC_HINT_STYLE */
FcPattern* res_pattern;
FcResult result;
XftFont* font;
Display* xdisplay = gdk_x11_get_default_xdisplay();
int screen = gdk_x11_get_default_screen();
res_pattern = XftFontMatch(xdisplay, screen, pattern, &result);
if (res_pattern == NULL)
{
return NULL;
}
FcPatternDel(res_pattern, FC_HINTING);
FcPatternAddBool(res_pattern, FC_HINTING, hinting != HINT_NONE);
#ifdef FC_HINT_STYLE
FcPatternDel(res_pattern, FC_HINT_STYLE);
FcPatternAddInteger(res_pattern, FC_HINT_STYLE, hintstyles[hinting]);
#endif /* FC_HINT_STYLE */
FcPatternDel(res_pattern, FC_ANTIALIAS);
FcPatternAddBool(res_pattern, FC_ANTIALIAS, antialiasing != ANTIALIAS_NONE);
FcPatternDel(res_pattern, FC_RGBA);
FcPatternAddInteger(res_pattern, FC_RGBA, antialiasing == ANTIALIAS_RGBA ? FC_RGBA_RGB : FC_RGBA_NONE);
FcPatternDel(res_pattern, FC_DPI);
FcPatternAddInteger(res_pattern, FC_DPI, 96);
font = XftFontOpenPattern(xdisplay, res_pattern);
if (!font)
{
FcPatternDestroy(res_pattern);
}
return font;
}
static void
default_substitute (FcPattern *pattern,
gpointer data G_GNUC_UNUSED)
{
FcPatternDel (pattern, FC_DPI);
FcPatternAddInteger (pattern, FC_DPI, opt_dpi);
if (opt_hinting != HINT_DEFAULT)
{
FcPatternDel (pattern, FC_HINTING);
FcPatternAddBool (pattern, FC_HINTING, opt_hinting != HINT_NONE);
FcPatternDel (pattern, FC_AUTOHINT);
FcPatternAddBool (pattern, FC_AUTOHINT, opt_hinting == HINT_AUTO);
}
}
// the substitute function to tell fontconfig to enforce outline fonts
static void FactorySubstituteFunc(FcPattern *pattern,gpointer /*data*/)
{
FcPatternAddBool(pattern, "FC_OUTLINE",FcTrue);
//char *fam = NULL;
//FcPatternGetString(pattern, "FC_FAMILY",0, &fam);
//printf("subst_f on %s\n",fam);
}
static void
xftfont_add_rendering_parameters (FcPattern *pat, Lisp_Object entity)
{
Lisp_Object tail;
int ival;
for (tail = AREF (entity, FONT_EXTRA_INDEX); CONSP (tail); tail = XCDR (tail))
{
Lisp_Object key = XCAR (XCAR (tail));
Lisp_Object val = XCDR (XCAR (tail));
if (EQ (key, QCantialias))
FcPatternAddBool (pat, FC_ANTIALIAS, NILP (val) ? FcFalse : FcTrue);
else if (EQ (key, QChinting))
FcPatternAddBool (pat, FC_HINTING, NILP (val) ? FcFalse : FcTrue);
else if (EQ (key, QCautohint))
FcPatternAddBool (pat, FC_AUTOHINT, NILP (val) ? FcFalse : FcTrue);
else if (EQ (key, QChintstyle))
{
if (INTEGERP (val))
FcPatternAddInteger (pat, FC_HINT_STYLE, XINT (val));
else if (SYMBOLP (val)
&& FcNameConstant (SDATA (SYMBOL_NAME (val)), &ival))
FcPatternAddInteger (pat, FC_HINT_STYLE, ival);
}
else if (EQ (key, QCrgba))
{
if (INTEGERP (val))
FcPatternAddInteger (pat, FC_RGBA, XINT (val));
else if (SYMBOLP (val)
&& FcNameConstant (SDATA (SYMBOL_NAME (val)), &ival))
FcPatternAddInteger (pat, FC_RGBA, ival);
}
else if (EQ (key, QClcdfilter))
{
if (INTEGERP (val))
FcPatternAddInteger (pat, FC_LCD_FILTER, ival = XINT (val));
else if (SYMBOLP (val)
&& FcNameConstant (SDATA (SYMBOL_NAME (val)), &ival))
FcPatternAddInteger (pat, FC_LCD_FILTER, ival);
}
#ifdef FC_EMBOLDEN
else if (EQ (key, QCembolden))
FcPatternAddBool (pat, FC_EMBOLDEN, NILP (val) ? FcFalse : FcTrue);
#endif
}
}
std::unique_ptr<FontPlatformData> FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
// The CSS font matching algorithm (http://www.w3.org/TR/css3-fonts/#font-matching-algorithm)
// says that we must find an exact match for font family, slant (italic or oblique can be used)
// and font weight (we only match bold/non-bold here).
RefPtr<FcPattern> pattern = adoptRef(FcPatternCreate());
// Never choose unscalable fonts, as they pixelate when displayed at different sizes.
FcPatternAddBool(pattern.get(), FC_SCALABLE, FcTrue);
String familyNameString(getFamilyNameStringFromFamily(family));
if (!FcPatternAddString(pattern.get(), FC_FAMILY, reinterpret_cast<const FcChar8*>(familyNameString.utf8().data())))
return nullptr;
bool italic = fontDescription.italic();
if (!FcPatternAddInteger(pattern.get(), FC_SLANT, italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN))
return nullptr;
if (!FcPatternAddInteger(pattern.get(), FC_WEIGHT, fontWeightToFontconfigWeight(fontDescription.weight())))
return nullptr;
if (!FcPatternAddDouble(pattern.get(), FC_PIXEL_SIZE, fontDescription.computedPixelSize()))
return nullptr;
// The strategy is originally from Skia (src/ports/SkFontHost_fontconfig.cpp):
// Allow Fontconfig to do pre-match substitution. Unless we are accessing a "fallback"
// family like "sans," this is the only time we allow Fontconfig to substitute one
// family name for another (i.e. if the fonts are aliased to each other).
FcConfigSubstitute(0, pattern.get(), FcMatchPattern);
FcDefaultSubstitute(pattern.get());
FcChar8* fontConfigFamilyNameAfterConfiguration;
FcPatternGetString(pattern.get(), FC_FAMILY, 0, &fontConfigFamilyNameAfterConfiguration);
String familyNameAfterConfiguration = String::fromUTF8(reinterpret_cast<char*>(fontConfigFamilyNameAfterConfiguration));
FcResult fontConfigResult;
RefPtr<FcPattern> resultPattern = adoptRef(FcFontMatch(0, pattern.get(), &fontConfigResult));
if (!resultPattern) // No match.
return nullptr;
FcChar8* fontConfigFamilyNameAfterMatching;
FcPatternGetString(resultPattern.get(), FC_FAMILY, 0, &fontConfigFamilyNameAfterMatching);
String familyNameAfterMatching = String::fromUTF8(reinterpret_cast<char*>(fontConfigFamilyNameAfterMatching));
// If Fontconfig gave use a different font family than the one we requested, we should ignore it
// and allow WebCore to give us the next font on the CSS fallback list. The only exception is if
// this family name is a commonly used generic family.
if (!equalIgnoringCase(familyNameAfterConfiguration, familyNameAfterMatching)
&& !(equalIgnoringCase(familyNameString, "sans") || equalIgnoringCase(familyNameString, "sans-serif")
|| equalIgnoringCase(familyNameString, "serif") || equalIgnoringCase(familyNameString, "monospace")
|| equalIgnoringCase(familyNameString, "fantasy") || equalIgnoringCase(familyNameString, "cursive")))
return nullptr;
// Verify that this font has an encoding compatible with Fontconfig. Fontconfig currently
// supports three encodings in FcFreeTypeCharIndex: Unicode, Symbol and AppleRoman.
// If this font doesn't have one of these three encodings, don't select it.
auto platformData = std::make_unique<FontPlatformData>(resultPattern.get(), fontDescription);
if (!platformData->hasCompatibleCharmap())
return nullptr;
return platformData;
}
gchar* find_font_with_property (FcConfig* fontconfig, const gchar* characters, const gchar* property) {
FcPattern* pattern;
FcCharSet* character_set;
FcObjectSet* font_properties;
FcFontSet* fonts;
FcPattern* font;
FcChar8* path;
gchar* result;
gchar* remaining_characters;
gunichar character;
if (fontconfig == NULL) {
g_warning("Font config not loaded.");
return NULL;
}
result = NULL;
pattern = FcPatternCreate ();
character_set = FcCharSetCreate ();
remaining_characters = (gchar*) characters;
while (TRUE) {
character = g_utf8_get_char (remaining_characters);
if (character == '\0') {
break;
}
FcCharSetAddChar(character_set, character);
remaining_characters = g_utf8_next_char (remaining_characters);
}
FcPatternAddCharSet (pattern, FC_CHARSET, character_set);
FcCharSetDestroy (character_set);
FcPatternAddInteger (pattern, FC_SLANT, FC_SLANT_ROMAN);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
font_properties = FcObjectSetBuild (property, NULL);
fonts = FcFontList (fontconfig, pattern, font_properties);
if (fonts && fonts->nfont > 0) {
font = fonts->fonts[0];
if (FcPatternGetString(font, property, 0, &path) == FcResultMatch) {
result = g_strdup ((gchar*) path);
}
}
if (fonts) {
FcFontSetDestroy(fonts);
}
if (pattern) {
FcPatternDestroy(pattern);
}
return result;
}
FcPattern* BC_Resources::find_similar_font(FT_ULong char_code, FcPattern *oldfont)
{
FcPattern *pat, *font;
FcFontSet *fs;
FcObjectSet *os;
FcCharSet *fcs;
FcChar8 *file;
double dval;
int ival;
// Do not search control codes
if(char_code < ' ')
return 0;
fontconfig_lock.lock("BC_Resources::find_similar_font");
pat = FcPatternCreate();
os = FcObjectSetBuild(FC_FILE, FC_CHARSET, FC_SCALABLE, FC_FAMILY,
FC_SLANT, FC_WEIGHT, FC_WIDTH, (char *)0);
FcPatternAddBool(pat, FC_SCALABLE, true);
fcs = FcCharSetCreate();
if(FcCharSetAddChar(fcs, char_code))
FcPatternAddCharSet(pat, FC_CHARSET, fcs);
FcCharSetDestroy(fcs);
for(int i = 0; i < LEN_FCPROP; i++)
{
if(FcPatternGetInteger(oldfont, fc_properties[i], 0, &ival) == FcResultMatch)
FcPatternAddInteger(pat, fc_properties[i], ival);
}
fs = FcFontList(0, pat, os);
for(int i = LEN_FCPROP - 1; i >= 0 && fs->nfont == 0; i--)
{
FcFontSetDestroy(fs);
FcPatternDel(pat, fc_properties[i]);
fs = FcFontList(0, pat, os);
}
FcPatternDestroy(pat);
FcObjectSetDestroy(os);
pat = 0;
for (int i = 0; i < fs->nfont; i++)
{
font = fs->fonts[i];
if(FcPatternGetCharSet(font, FC_CHARSET, 0, &fcs) == FcResultMatch)
{
if(FcCharSetHasChar(fcs, char_code))
{
pat = FcPatternDuplicate(font);
break;
}
}
}
FcFontSetDestroy(fs);
fontconfig_lock.unlock();
return pat;
}
FontFileLister::CollectionResult FontConfigFontFileLister::GetFontPaths(std::string const& facename, int bold, bool italic, std::set<wxUniChar> const& characters) {
CollectionResult ret;
std::string family(facename);
if (family[0] == '@')
family.erase(0, 1);
boost::to_lower(family);
int weight = bold == 0 ? 80 :
bold == 1 ? 200 :
bold;
int slant = italic ? 110 : 0;
// Create a fontconfig pattern to match the desired weight/slant
agi::scoped_holder<FcPattern*> pat(FcPatternCreate(), FcPatternDestroy);
if (!pat) return ret;
FcPatternAddBool(pat, FC_OUTLINE, true);
FcPatternAddInteger(pat, FC_SLANT, slant);
FcPatternAddInteger(pat, FC_WEIGHT, weight);
FcDefaultSubstitute(pat);
if (!FcConfigSubstitute(config, pat, FcMatchPattern)) return ret;
// Create a font set with only correctly named fonts
// This is needed because the patterns returned by font matching only
// include the first family and fullname, so we can't always verify that
// we got the actual font we were asking for after the fact
agi::scoped_holder<FcFontSet*> fset(FcFontSetCreate(), FcFontSetDestroy);
find_font(FcConfigGetFonts(config, FcSetApplication), fset, family);
find_font(FcConfigGetFonts(config, FcSetSystem), fset, family);
// Get the best match from fontconfig
FcResult result;
FcFontSet *sets[] = { (FcFontSet*)fset };
agi::scoped_holder<FcPattern*> match(FcFontSetMatch(config, sets, 1, pat, &result), FcPatternDestroy);
if (!match)
return ret;
FcChar8 *file;
if(FcPatternGetString(match, FC_FILE, 0, &file) != FcResultMatch)
return ret;
FcCharSet *charset;
if (FcPatternGetCharSet(match, FC_CHARSET, 0, &charset) == FcResultMatch) {
for (wxUniChar chr : characters) {
if (!FcCharSetHasChar(charset, chr))
ret.missing += chr;
}
}
ret.paths.emplace_back((const char *)file);
return ret;
}
static cairo_scaled_font_t *
create_scaled_font (cairo_t * cr)
{
FcPattern *pattern, *resolved;
FcResult result;
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_font_options_t *font_options;
cairo_matrix_t font_matrix, ctm;
double pixel_size;
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
pattern = FcPatternCreate ();
FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)"Bitstream Vera Sans");
FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE);
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
cairo_ft_font_options_substitute (font_options, pattern);
FcDefaultSubstitute (pattern);
resolved = FcFontMatch (NULL, pattern, &result);
/* set layout to vertical */
FcPatternDel (resolved, FC_VERTICAL_LAYOUT);
FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue);
FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size);
font_face = cairo_ft_font_face_create_for_pattern (resolved);
cairo_matrix_init_translate (&font_matrix, 10, 30);
cairo_matrix_rotate (&font_matrix, M_PI_2/3);
cairo_matrix_scale (&font_matrix, pixel_size, pixel_size);
cairo_get_matrix (cr, &ctm);
scaled_font = cairo_scaled_font_create (font_face,
&font_matrix,
&ctm,
font_options);
cairo_font_options_destroy (font_options);
cairo_font_face_destroy (font_face);
FcPatternDestroy (pattern);
FcPatternDestroy (resolved);
return scaled_font;
}
Vector<String> FontCache::systemFontFamilies()
{
RefPtr<FcPattern> scalablesOnlyPattern = adoptRef(FcPatternCreate());
FcPatternAddBool(scalablesOnlyPattern.get(), FC_SCALABLE, FcTrue);
FcUniquePtr<FcObjectSet> familiesOnly(FcObjectSetBuild(FC_FAMILY, nullptr));
FcUniquePtr<FcFontSet> fontSet(FcFontList(nullptr, scalablesOnlyPattern.get(), familiesOnly.get()));
Vector<String> fontFamilies;
for (int i = 0; i < fontSet->nfont; i++) {
FcPattern* pattern = fontSet->fonts[i];
FcChar8* family = nullptr;
FcPatternGetString(pattern, FC_FAMILY, 0, &family);
if (family)
fontFamilies.appendVector(patternToFamilies(*pattern));
}
return fontFamilies;
}
FcPattern *CreateFcPattern(Font font)
{
LTIMING("CreateXftFont");
int hg = abs(font.GetHeight());
if(hg == 0) hg = 10;
String face = font.GetFaceName();
FcPattern *p = FcPatternCreate();
FcPatternAddString(p, FC_FAMILY, (FcChar8*)~face);
FcPatternAddInteger(p, FC_SLANT, font.IsItalic() ? FC_SLANT_ITALIC : FC_SLANT_ROMAN);
FcPatternAddInteger(p, FC_PIXEL_SIZE, hg);
FcPatternAddInteger(p, FC_WEIGHT, font.IsBold() ? FC_WEIGHT_BOLD : FC_WEIGHT_NORMAL);
FcPatternAddBool(p, FC_MINSPACE, 1);
FcConfigSubstitute(0, p, FcMatchPattern);
FcDefaultSubstitute(p);
FcResult result;
FcPattern *m = FcFontMatch(0, p, &result);
FcPatternDestroy(p);
return m;
}
/** Find a font file from its family name.
* @param font_config fontconfig instance
* @param font_name name of the font
* @return full path to the font file
*/
gchar* find_font_file (FcConfig* font_config, const gchar* font_name) {
const FcChar8* name;
FcPattern* search_pattern;
FcPattern* font;
FcChar8* file;
gchar* path;
FcObjectSet* font_properties;
FcFontSet* fonts;
int i;
if (font_config == NULL) {
g_warning("Font config not loaded.");
return NULL;
}
path = NULL;
name = font_name;
search_pattern = FcPatternCreate ();
FcPatternAddString (search_pattern, FC_FAMILY, name);
FcPatternAddBool (search_pattern, FC_SCALABLE, FcTrue);
FcPatternAddInteger (search_pattern, FC_WEIGHT, FC_WEIGHT_MEDIUM);
FcPatternAddInteger (search_pattern, FC_SLANT, FC_SLANT_ROMAN);
font_properties = FcObjectSetBuild (FC_FILE, NULL);
fonts = FcFontList (font_config, search_pattern, font_properties);
if (fonts->nfont > 0) {
for (i = 0; i < fonts->nfont; i++) {
font = fonts->fonts[i];
if (FcPatternGetString(font, FC_FILE, 0, &file) == FcResultMatch) {
path = g_strdup ((gchar*) file);
break;
}
}
FcPatternDestroy (font);
}
FcPatternDestroy (search_pattern);
return path;
}
static RefPtr<FcPattern> createFontConfigPatternForCharacters(const UChar* characters, int bufferLength)
{
RefPtr<FcPattern> pattern = adoptRef(FcPatternCreate());
FcUniquePtr<FcCharSet> fontConfigCharSet(FcCharSetCreate());
UTF16UChar32Iterator iterator(characters, bufferLength);
UChar32 character = iterator.next();
while (character != iterator.end()) {
FcCharSetAddChar(fontConfigCharSet.get(), character);
character = iterator.next();
}
FcPatternAddCharSet(pattern.get(), FC_CHARSET, fontConfigCharSet.get());
FcPatternAddBool(pattern.get(), FC_SCALABLE, FcTrue);
FcConfigSubstitute(nullptr, pattern.get(), FcMatchPattern);
FcDefaultSubstitute(pattern.get());
return pattern;
}
FcPattern* createFontConfigPatternForCharacters(const UChar* characters, int bufferLength)
{
FcPattern* pattern = FcPatternCreate();
FcCharSet* fontConfigCharSet = FcCharSetCreate();
UTF16UChar32Iterator iterator(characters, bufferLength);
UChar32 character = iterator.next();
while (character != iterator.end()) {
FcCharSetAddChar(fontConfigCharSet, character);
character = iterator.next();
}
FcPatternAddCharSet(pattern, FC_CHARSET, fontConfigCharSet);
FcCharSetDestroy(fontConfigCharSet);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
return pattern;
}
FcPattern* createFontConfigPatternForCharacters(const UChar* characters, int length)
{
FcPattern* pattern = FcPatternCreate();
FcCharSet* fontConfigCharSet = FcCharSetCreate();
for (int i = 0; i < length; ++i) {
if (U16_IS_SURROGATE(characters[i]) && U16_IS_SURROGATE_LEAD(characters[i])
&& i != length - 1 && U16_IS_TRAIL(characters[i + 1])) {
FcCharSetAddChar(fontConfigCharSet, U16_GET_SUPPLEMENTARY(characters[i], characters[i+1]));
i++;
} else
FcCharSetAddChar(fontConfigCharSet, characters[i]);
}
FcPatternAddCharSet(pattern, FC_CHARSET, fontConfigCharSet);
FcCharSetDestroy(fontConfigCharSet);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcConfigSubstitute(0, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
return pattern;
}
/* Ask the fontgod for a generic, standard issue "Arial" font */
const char *graph_init_fontconfig(void)
{
/* Offer fontgod sacrificial pointers to hold his highness */
FcConfig *fc_config = FcInitLoadConfigAndFonts();
FcPattern *fc_pattern = FcPatternCreate();
/* Ask the deity for a user-specified gift of typography */
FcPatternAddString(fc_pattern, FC_FAMILY, (const FcChar8 *)option->fontname);
/* Ask fontgod not to blind our eyes for our insolence */
FcPatternAddBool(fc_pattern, FC_ANTIALIAS, 1);
/* Summon a fontdemon which shall transmit the gifts of our god */
FcResult fc_result;
/* Incantation for our omnipotence to recognize our request: */
FcDefaultSubstitute(fc_pattern);
FcConfigSubstitute(fc_config, fc_pattern, FcMatchPattern);
/* "We ask you, oh you in the sky, for your attention..." */
FcPattern *fc_font_chosen = FcFontMatch(fc_config, fc_pattern, &fc_result);
FcValue fc_value;
/* SHOW US YOUR POWER, INVOKE ANCIENT KNOWLEDGE, GIVE US THE LOCATION! */
FcPatternGet(fc_font_chosen, "file", 0, &fc_value);
/* Fontgod has given us a sacred filename, hail FONTCONFIG! */
pprintf(PRI_SPAM, "[FC] Font path received = %s\n", (char *)fc_value.u.s);
return (const char *)fc_value.u.s;
}
std::unique_ptr<FontPlatformData> FontCache::createFontPlatformData(const FontDescription& fontDescription, const AtomicString& family)
{
// The CSS font matching algorithm (http://www.w3.org/TR/css3-fonts/#font-matching-algorithm)
// says that we must find an exact match for font family, slant (italic or oblique can be used)
// and font weight (we only match bold/non-bold here).
RefPtr<FcPattern> pattern = adoptRef(FcPatternCreate());
// Never choose unscalable fonts, as they pixelate when displayed at different sizes.
FcPatternAddBool(pattern.get(), FC_SCALABLE, FcTrue);
String familyNameString(getFamilyNameStringFromFamily(family));
if (!FcPatternAddString(pattern.get(), FC_FAMILY, reinterpret_cast<const FcChar8*>(familyNameString.utf8().data())))
return nullptr;
bool italic = fontDescription.italic();
if (!FcPatternAddInteger(pattern.get(), FC_SLANT, italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN))
return nullptr;
if (!FcPatternAddInteger(pattern.get(), FC_WEIGHT, fontWeightToFontconfigWeight(fontDescription.weight())))
return nullptr;
if (!FcPatternAddDouble(pattern.get(), FC_PIXEL_SIZE, fontDescription.computedPixelSize()))
return nullptr;
// The strategy is originally from Skia (src/ports/SkFontHost_fontconfig.cpp):
//
// We do not normally allow fontconfig to substitute one font family for another, since this
// would break CSS font family fallback: the website should be in control of fallback. During
// normal font matching, the only font family substitution permitted is for generic families
// (sans, serif, monospace) or for strongly-aliased fonts (which are to be treated as
// effectively identical). This is because the font matching step is designed to always find a
// match for the font, which we don't want.
//
// Fontconfig is used in two stages: (1) configuration and (2) matching. During the
// configuration step, before any matching occurs, we allow arbitrary family substitutions,
// since this is an exact matter of respecting the user's font configuration.
FcConfigSubstitute(nullptr, pattern.get(), FcMatchPattern);
FcDefaultSubstitute(pattern.get());
FcChar8* fontConfigFamilyNameAfterConfiguration;
FcPatternGetString(pattern.get(), FC_FAMILY, 0, &fontConfigFamilyNameAfterConfiguration);
String familyNameAfterConfiguration = String::fromUTF8(reinterpret_cast<char*>(fontConfigFamilyNameAfterConfiguration));
FcResult fontConfigResult;
RefPtr<FcPattern> resultPattern = adoptRef(FcFontMatch(nullptr, pattern.get(), &fontConfigResult));
if (!resultPattern) // No match.
return nullptr;
FcChar8* fontConfigFamilyNameAfterMatching;
FcPatternGetString(resultPattern.get(), FC_FAMILY, 0, &fontConfigFamilyNameAfterMatching);
String familyNameAfterMatching = String::fromUTF8(reinterpret_cast<char*>(fontConfigFamilyNameAfterMatching));
// If Fontconfig gave us a different font family than the one we requested, we should ignore it
// and allow WebCore to give us the next font on the CSS fallback list. The exceptions are if
// this family name is a commonly-used generic family, or if the families are strongly-aliased.
// Checking for a strong alias comes last, since it is slow.
if (!equalIgnoringCase(familyNameAfterConfiguration, familyNameAfterMatching)
&& !(equalIgnoringCase(familyNameString, "sans") || equalIgnoringCase(familyNameString, "sans-serif")
|| equalIgnoringCase(familyNameString, "serif") || equalIgnoringCase(familyNameString, "monospace")
|| equalIgnoringCase(familyNameString, "fantasy") || equalIgnoringCase(familyNameString, "cursive"))
&& !areStronglyAliased(familyNameAfterConfiguration, familyNameAfterMatching))
return nullptr;
// Verify that this font has an encoding compatible with Fontconfig. Fontconfig currently
// supports three encodings in FcFreeTypeCharIndex: Unicode, Symbol and AppleRoman.
// If this font doesn't have one of these three encodings, don't select it.
auto platformData = std::make_unique<FontPlatformData>(resultPattern.get(), fontDescription);
if (!platformData->hasCompatibleCharmap())
return nullptr;
return platformData;
}
/**
* \brief Low-level font selection.
* \param priv private data
* \param family font family
* \param bold font weight value
* \param italic font slant value
* \param index out: font index inside a file
* \param code: the character that should be present in the font, can be 0
* \return font file path
*/
static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold, unsigned italic, int* index,
uint32_t code)
{
FcBool rc;
FcResult result;
FcPattern *pat = 0, *rpat;
int val_i;
FcChar8* val_s;
FcBool val_b;
FcCharSet* val_cs;
FcFontSet* fset = 0;
int curf;
char* retval = 0;
*index = 0;
pat = FcPatternCreate();
if (!pat)
goto error;
FcPatternAddString(pat, FC_FAMILY, (const FcChar8*)family);
FcPatternAddBool(pat, FC_OUTLINE, FcTrue);
FcPatternAddInteger(pat, FC_SLANT, italic);
FcPatternAddInteger(pat, FC_WEIGHT, bold);
FcDefaultSubstitute(pat);
rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
if (!rc)
goto error;
fset = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
for (curf = 0; curf < fset->nfont; ++curf) {
rpat = fset->fonts[curf];
result = FcPatternGetBool(rpat, FC_OUTLINE, 0, &val_b);
if (result != FcResultMatch)
continue;
if (val_b != FcTrue)
continue;
if (!code)
break;
result = FcPatternGetCharSet(rpat, FC_CHARSET, 0, &val_cs);
if (result != FcResultMatch)
continue;
if (FcCharSetHasChar(val_cs, code))
break;
}
if (curf >= fset->nfont)
goto error;
rpat = fset->fonts[curf];
result = FcPatternGetInteger(rpat, FC_INDEX, 0, &val_i);
if (result != FcResultMatch)
goto error;
*index = val_i;
result = FcPatternGetString(rpat, FC_FAMILY, 0, &val_s);
if (result != FcResultMatch)
goto error;
if (strcasecmp((const char*)val_s, family) != 0)
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_SelectedFontFamilyIsNotTheRequestedOne,
(const char*)val_s, family);
result = FcPatternGetString(rpat, FC_FILE, 0, &val_s);
if (result != FcResultMatch)
goto error;
retval = strdup((const char*)val_s);
error:
if (pat) FcPatternDestroy(pat);
if (fset) FcFontSetDestroy(fset);
return retval;
}
fz_error *
pdf_loadsystemfont(pdf_font *font, char *basefont, char *collection)
{
fz_error *error;
FcResult fcerr;
int fterr;
char fontname[200];
FcPattern *searchpat;
FcPattern *matchpat;
FT_Face face;
char *style;
char *file;
int index;
error = initfontlibs();
if (error)
return error;
/* parse windows-style font name descriptors Font,Style */
/* TODO: reliable way to split style from Font-Style type names */
strlcpy(fontname, basefont, sizeof fontname);
style = strchr(fontname, ',');
if (style)
*style++ = 0;
searchpat = FcPatternCreate();
if (!searchpat)
return fz_outofmem;
error = fz_outofmem;
if (!FcPatternAddString(searchpat, FC_FAMILY, fontname))
goto cleanup;
if (collection)
{
if (!strcmp(collection, "Adobe-GB1"))
if (!FcPatternAddString(searchpat, FC_LANG, "zh-TW"))
goto cleanup;
if (!strcmp(collection, "Adobe-CNS1"))
if (!FcPatternAddString(searchpat, FC_LANG, "zh-CN"))
goto cleanup;
if (!strcmp(collection, "Adobe-Japan1"))
if (!FcPatternAddString(searchpat, FC_LANG, "ja"))
goto cleanup;
if (!strcmp(collection, "Adobe-Japan2"))
if (!FcPatternAddString(searchpat, FC_LANG, "ja"))
goto cleanup;
if (!strcmp(collection, "Adobe-Korea1"))
if (!FcPatternAddString(searchpat, FC_LANG, "ko"))
goto cleanup;
}
if (style)
if (!FcPatternAddString(searchpat, FC_STYLE, style))
goto cleanup;
if (font->flags & FD_SERIF)
FcPatternAddString(searchpat, FC_FAMILY, "serif");
else
FcPatternAddString(searchpat, FC_FAMILY, "sans-serif");
if (font->flags & FD_ITALIC)
FcPatternAddString(searchpat, FC_STYLE, "Italic");
if (font->flags & FD_FORCEBOLD)
FcPatternAddString(searchpat, FC_STYLE, "Bold");
if (!FcPatternAddBool(searchpat, FC_OUTLINE, 1))
goto cleanup;
file = FcNameUnparse(searchpat);
pdf_logfont("fontconfig0 %s\n", file);
free(file);
fcerr = FcResultMatch;
/* FcDefaultSubstitute(searchpat); */
FcConfigSubstitute(fclib, searchpat, FcMatchPattern);
file = FcNameUnparse(searchpat);
pdf_logfont("fontconfig1 %s\n", file);
free(file);
matchpat = FcFontMatch(fclib, searchpat, &fcerr);
if (fcerr != FcResultMatch)
return fz_throw("fontconfig could not find font %s", basefont);
fcerr = FcPatternGetString(matchpat, FC_FAMILY, 0, (FcChar8**)&file);
if (file && strcmp(fontname, file))
font->substitute = 1;
fcerr = FcPatternGetString(matchpat, FC_STYLE, 0, (FcChar8**)&file);
if (file && style && strcmp(style, file))
font->substitute = 1;
fcerr = FcPatternGetString(matchpat, FC_FILE, 0, (FcChar8**)&file);
if (fcerr != FcResultMatch)
return fz_throw("fontconfig could not find font %s", basefont);
index = 0;
fcerr = FcPatternGetInteger(matchpat, FC_INDEX, 0, &index);
pdf_logfont("load font file %s %d\n", file, index);
fterr = FT_New_Face(ftlib, file, index, &face);
if (fterr) {
FcPatternDestroy(matchpat);
FcPatternDestroy(searchpat);
return fz_throw("freetype could not load font file '%s': %s", file, pdf_fterrorstring(fterr));
}
FcPatternDestroy(matchpat);
FcPatternDestroy(searchpat);
font->ftface = face;
return nil;
cleanup:
FcPatternDestroy(searchpat);
return error;
}
/**
* \brief Low-level font selection.
* \param priv private data
* \param family font family
* \param treat_family_as_pattern treat family as fontconfig pattern
* \param bold font weight value
* \param italic font slant value
* \param index out: font index inside a file
* \param code: the character that should be present in the font, can be 0
* \return font file path
*/
static char *select_font(ASS_Library *library, FCInstance *priv,
const char *family, int treat_family_as_pattern,
unsigned bold, unsigned italic, int *index,
uint32_t code)
{
FcBool rc;
FcResult result;
FcPattern *pat = NULL, *rpat = NULL;
int r_index, r_slant, r_weight;
FcChar8 *r_family, *r_style, *r_file, *r_fullname;
FcBool r_outline, r_embolden;
FcCharSet *r_charset;
FcFontSet *ffullname = NULL, *fsorted = NULL, *fset = NULL;
int curf;
char *retval = NULL;
int family_cnt = 0;
*index = 0;
if (treat_family_as_pattern)
pat = FcNameParse((const FcChar8 *) family);
else
pat = FcPatternCreate();
if (!pat)
goto error;
if (!treat_family_as_pattern) {
FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) family);
// In SSA/ASS fonts are sometimes referenced by their "full name",
// which is usually a concatenation of family name and font
// style (ex. Ottawa Bold). Full name is available from
// FontConfig pattern element FC_FULLNAME, but it is never
// used for font matching.
// Therefore, I'm removing words from the end of the name one
// by one, and adding shortened names to the pattern. It seems
// that the first value (full name in this case) has
// precedence in matching.
// An alternative approach could be to reimplement FcFontSort
// using FC_FULLNAME instead of FC_FAMILY.
family_cnt = 1;
{
char *s = strdup(family);
char *p = s + strlen(s);
while (--p > s)
if (*p == ' ' || *p == '-') {
*p = '\0';
FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) s);
++family_cnt;
}
free(s);
}
}
FcPatternAddBool(pat, FC_OUTLINE, FcTrue);
FcPatternAddInteger(pat, FC_SLANT, italic);
FcPatternAddInteger(pat, FC_WEIGHT, bold);
FcDefaultSubstitute(pat);
rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
if (!rc)
goto error;
/* Fontconfig defaults include a language setting, which it sets based on
* some environment variables or defaults to "en". Unset this as we don't
* know the real language, and because some some attached fonts lack
* non-ascii characters included in fontconfig's list of characters
* required for English support and therefore don't match the lang=en
* criterion.
*/
FcPatternDel(pat, "lang");
fsorted = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
ffullname = match_fullname(library, priv, family, bold, italic);
if (!fsorted || !ffullname)
goto error;
fset = FcFontSetCreate();
for (curf = 0; curf < ffullname->nfont; ++curf) {
FcPattern *curp = ffullname->fonts[curf];
FcPatternReference(curp);
FcFontSetAdd(fset, curp);
}
for (curf = 0; curf < fsorted->nfont; ++curf) {
FcPattern *curp = fsorted->fonts[curf];
FcPatternReference(curp);
FcFontSetAdd(fset, curp);
}
for (curf = 0; curf < fset->nfont; ++curf) {
FcPattern *curp = fset->fonts[curf];
result = FcPatternGetBool(curp, FC_OUTLINE, 0, &r_outline);
if (result != FcResultMatch)
continue;
if (r_outline != FcTrue)
continue;
if (!code)
break;
result = FcPatternGetCharSet(curp, FC_CHARSET, 0, &r_charset);
if (result != FcResultMatch)
continue;
if (FcCharSetHasChar(r_charset, code))
break;
}
if (curf >= fset->nfont)
goto error;
if (!treat_family_as_pattern) {
// Remove all extra family names from original pattern.
// After this, FcFontRenderPrepare will select the most relevant family
// name in case there are more than one of them.
for (; family_cnt > 1; --family_cnt)
FcPatternRemove(pat, FC_FAMILY, family_cnt - 1);
}
rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]);
if (!rpat)
goto error;
result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index);
if (result != FcResultMatch)
goto error;
*index = r_index;
result = FcPatternGetString(rpat, FC_FILE, 0, &r_file);
if (result != FcResultMatch)
goto error;
retval = strdup((const char *) r_file);
result = FcPatternGetString(rpat, FC_FAMILY, 0, &r_family);
if (result != FcResultMatch)
r_family = NULL;
result = FcPatternGetString(rpat, FC_FULLNAME, 0, &r_fullname);
if (result != FcResultMatch)
r_fullname = NULL;
if (!treat_family_as_pattern &&
!(r_family && strcasecmp((const char *) r_family, family) == 0) &&
!(r_fullname && strcasecmp((const char *) r_fullname, family) == 0)) {
char *fallback = (char *) (r_fullname ? r_fullname : r_family);
if (code) {
ass_msg(library, MSGL_WARN,
"fontconfig: cannot find glyph U+%04X in font '%s', falling back to '%s'",
(unsigned int)code, family, fallback);
} else {
ass_msg(library, MSGL_WARN,
"fontconfig: cannot find font '%s', falling back to '%s'",
family, fallback);
}
}
result = FcPatternGetString(rpat, FC_STYLE, 0, &r_style);
if (result != FcResultMatch)
r_style = NULL;
result = FcPatternGetInteger(rpat, FC_SLANT, 0, &r_slant);
if (result != FcResultMatch)
r_slant = 0;
result = FcPatternGetInteger(rpat, FC_WEIGHT, 0, &r_weight);
if (result != FcResultMatch)
r_weight = 0;
result = FcPatternGetBool(rpat, FC_EMBOLDEN, 0, &r_embolden);
if (result != FcResultMatch)
r_embolden = 0;
ass_msg(library, MSGL_V,
"Font info: family '%s', style '%s', fullname '%s',"
" slant %d, weight %d%s", (const char *) r_family,
(const char *) r_style, (const char *) r_fullname, r_slant,
r_weight, r_embolden ? ", embolden" : "");
error:
if (pat)
FcPatternDestroy(pat);
if (rpat)
FcPatternDestroy(rpat);
if (fsorted)
FcFontSetDestroy(fsorted);
if (ffullname)
FcFontSetDestroy(ffullname);
if (fset)
FcFontSetDestroy(fset);
return retval;
}
/***
* \brief Selects a font matching family, bold, italic provided
***/
char* FontConfig_Select( filter_t *p_filter, const char* family,
bool b_bold, bool b_italic, int i_size, int *i_idx )
{
FcResult result = FcResultMatch;
FcPattern *pat, *p_pat;
FcChar8* val_s;
FcBool val_b;
char *ret = NULL;
FcConfig* config = NULL;
VLC_UNUSED(p_filter);
/* Create a pattern and fills it */
pat = FcPatternCreate();
if (!pat) return NULL;
/* */
FcPatternAddString( pat, FC_FAMILY, (const FcChar8*)family );
FcPatternAddBool( pat, FC_OUTLINE, FcTrue );
FcPatternAddInteger( pat, FC_SLANT, b_italic ? FC_SLANT_ITALIC : FC_SLANT_ROMAN );
FcPatternAddInteger( pat, FC_WEIGHT, b_bold ? FC_WEIGHT_EXTRABOLD : FC_WEIGHT_NORMAL );
if( i_size != -1 )
{
char *psz_fontsize;
if( asprintf( &psz_fontsize, "%d", i_size ) != -1 )
{
FcPatternAddString( pat, FC_SIZE, (const FcChar8 *)psz_fontsize );
free( psz_fontsize );
}
}
/* */
FcDefaultSubstitute( pat );
if( !FcConfigSubstitute( config, pat, FcMatchPattern ) )
{
FcPatternDestroy( pat );
return NULL;
}
/* Find the best font for the pattern, destroy the pattern */
p_pat = FcFontMatch( config, pat, &result );
FcPatternDestroy( pat );
if( !p_pat || result == FcResultNoMatch ) return NULL;
/* Check the new pattern */
if( ( FcResultMatch != FcPatternGetBool( p_pat, FC_OUTLINE, 0, &val_b ) )
|| ( val_b != FcTrue ) )
{
FcPatternDestroy( p_pat );
return NULL;
}
if( FcResultMatch != FcPatternGetInteger( p_pat, FC_INDEX, 0, i_idx ) )
{
*i_idx = 0;
}
if( FcResultMatch != FcPatternGetString( p_pat, FC_FAMILY, 0, &val_s ) )
{
FcPatternDestroy( p_pat );
return NULL;
}
/* if( strcasecmp((const char*)val_s, family ) != 0 )
msg_Warn( p_filter, "fontconfig: selected font family is not"
"the requested one: '%s' != '%s'\n",
(const char*)val_s, family ); */
if( FcResultMatch == FcPatternGetString( p_pat, FC_FILE, 0, &val_s ) )
ret = strdup( (const char*)val_s );
FcPatternDestroy( p_pat );
return ret;
}
bool SkFontConfigInterfaceDirect::matchFamilyName(const char familyName[],
SkTypeface::Style style,
FontIdentity* outIdentity,
SkString* outFamilyName,
SkTypeface::Style* outStyle) {
SkString familyStr(familyName ? familyName : "");
if (familyStr.size() > kMaxFontFamilyLength) {
return false;
}
SkAutoMutexAcquire ac(mutex_);
FcPattern* pattern = FcPatternCreate();
if (familyName) {
FcPatternAddString(pattern, FC_FAMILY, (FcChar8*)familyName);
}
FcPatternAddInteger(pattern, FC_WEIGHT,
(style & SkTypeface::kBold) ? FC_WEIGHT_BOLD
: FC_WEIGHT_NORMAL);
FcPatternAddInteger(pattern, FC_SLANT,
(style & SkTypeface::kItalic) ? FC_SLANT_ITALIC
: FC_SLANT_ROMAN);
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcConfigSubstitute(NULL, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
// Font matching:
// CSS often specifies a fallback list of families:
// font-family: a, b, c, serif;
// However, fontconfig will always do its best to find *a* font when asked
// for something so we need a way to tell if the match which it has found is
// "good enough" for us. Otherwise, we can return NULL which gets piped up
// and lets WebKit know to try the next CSS family name. However, fontconfig
// configs allow substitutions (mapping "Arial -> Helvetica" etc) and we
// wish to support that.
//
// Thus, if a specific family is requested we set @family_requested. Then we
// record two strings: the family name after config processing and the
// family name after resolving. If the two are equal, it's a good match.
//
// So consider the case where a user has mapped Arial to Helvetica in their
// config.
// requested family: "Arial"
// post_config_family: "Helvetica"
// post_match_family: "Helvetica"
// -> good match
//
// and for a missing font:
// requested family: "Monaco"
// post_config_family: "Monaco"
// post_match_family: "Times New Roman"
// -> BAD match
//
// However, we special-case fallback fonts; see IsFallbackFontAllowed().
const char* post_config_family = get_name(pattern, FC_FAMILY);
if (!post_config_family) {
// we can just continue with an empty name, e.g. default font
post_config_family = "";
}
FcResult result;
FcFontSet* font_set = FcFontSort(0, pattern, 0, 0, &result);
if (!font_set) {
FcPatternDestroy(pattern);
return false;
}
FcPattern* match = MatchFont(font_set, post_config_family, familyStr);
if (!match) {
FcPatternDestroy(pattern);
FcFontSetDestroy(font_set);
return false;
}
FcPatternDestroy(pattern);
// From here out we just extract our results from 'match'
post_config_family = get_name(match, FC_FAMILY);
if (!post_config_family) {
FcFontSetDestroy(font_set);
return false;
}
const char* c_filename = get_name(match, FC_FILE);
if (!c_filename) {
FcFontSetDestroy(font_set);
return false;
}
int face_index;
if (FcPatternGetInteger(match, FC_INDEX, 0, &face_index) != FcResultMatch) {
FcFontSetDestroy(font_set);
return false;
}
FcFontSetDestroy(font_set);
if (outIdentity) {
outIdentity->fTTCIndex = face_index;
outIdentity->fString.set(c_filename);
}
if (outFamilyName) {
outFamilyName->set(post_config_family);
}
if (outStyle) {
*outStyle = GetFontStyle(match);
}
return true;
}
int BC_Resources::init_fontconfig(const char *search_path)
{
if( fontlist ) return 0;
fontlist = new ArrayList<BC_FontEntry*>;
#define get_str(str,sep,ptr,cond) do { char *out = str; \
while( *ptr && !strchr(sep,*ptr) && (cond) ) *out++ = *ptr++; \
*out = 0; \
} while(0)
#define skip_str(sep, ptr) do { \
while( *ptr && strchr(sep,*ptr) ) ++ptr; \
} while(0)
char find_command[BCTEXTLEN];
sprintf(find_command,
"find %s -name 'fonts.dir' -print -exec cat {} \\;",
search_path);
FILE *in = popen(find_command, "r");
FT_Library freetype_library = 0;
// FT_Face freetype_face = 0;
// FT_Init_FreeType(&freetype_library);
char line[BCTEXTLEN], current_dir[BCTEXTLEN];
current_dir[0] = 0;
while( !feof(in) && fgets(line, BCTEXTLEN, in) ) {
if(!strlen(line)) break;
char *in_ptr = line;
// Get current directory
if(line[0] == '/') {
get_str(current_dir, "\n", in_ptr,1);
for( int i=strlen(current_dir); --i>=0 && current_dir[i]!='/'; )
current_dir[i] = 0;
continue;
}
//printf("TitleMain::build_fonts %s\n", line);
BC_FontEntry *entry = new BC_FontEntry;
char string[BCTEXTLEN];
// Path
get_str(string, "\n", in_ptr, in_ptr[0]!=' ' || in_ptr[1]!='-');
entry->path = cstrcat(2, current_dir, string);
// Foundary
skip_str(" -", in_ptr);
get_str(string, " -\n", in_ptr, 1);
if( !string[0] ) { delete entry; continue; }
entry->foundry = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// Family
get_str(string, "-\n", in_ptr, 1);
if( !string[0] ) { delete entry; continue; }
entry->family = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// Weight
get_str(string, "-\n", in_ptr, 1);
entry->weight = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// Slant
get_str(string, "-\n", in_ptr, 1);
entry->slant = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// SWidth
get_str(string, "-\n", in_ptr, 1);
entry->swidth = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// Adstyle
get_str(string, "-\n", in_ptr, 1);
entry->adstyle = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// pixelsize
get_str(string, "-\n", in_ptr, 1);
entry->pixelsize = atol(string);
if(*in_ptr == '-') in_ptr++;
// pointsize
get_str(string, "-\n", in_ptr, 1);
entry->pointsize = atol(string);
if(*in_ptr == '-') in_ptr++;
// xres
get_str(string, "-\n", in_ptr, 1);
entry->xres = atol(string);
if(*in_ptr == '-') in_ptr++;
// yres
get_str(string, "-\n", in_ptr, 1);
entry->yres = atol(string);
if(*in_ptr == '-') in_ptr++;
// spacing
get_str(string, "-\n", in_ptr, 1);
entry->spacing = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// avg_width
get_str(string, "-\n", in_ptr, 1);
entry->avg_width = atol(string);
if(*in_ptr == '-') in_ptr++;
// registry
get_str(string, "-\n", in_ptr, 1);
entry->registry = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// encoding
get_str(string, "-\n", in_ptr, 1);
entry->encoding = cstrdup(string);
if(*in_ptr == '-') in_ptr++;
// Add to list
//printf("TitleMain::build_fonts 1 %s\n", entry->path);
// This takes a real long time to do. Instead just take all fonts
// if(!load_freetype_face(freetype_library,
// freetype_face, entry->path) )
// Fix parameters
sprintf(line, "%s (%s)", entry->family, entry->foundry);
entry->displayname = cstrdup(line);
if(!strcasecmp(entry->weight, "demibold")) {
entry->fixed_style |= BC_FONT_BOLD;
entry->style |= FL_WEIGHT_DEMIBOLD;
}
else if(!strcasecmp(entry->weight, "bold")) {
entry->fixed_style |= BC_FONT_BOLD;
entry->style |= FL_WEIGHT_BOLD;
}
else {
entry->style |= FL_WEIGHT_NORMAL;
}
if(!strcasecmp(entry->slant, "r")) {
entry->style |= FL_SLANT_ROMAN;
}
else if(!strcasecmp(entry->slant, "i")) {
entry->style |= FL_SLANT_ITALIC;
entry->fixed_style |= BC_FONT_ITALIC;
}
else if(!strcasecmp(entry->slant, "o")) {
entry->style |= FL_SLANT_OBLIQUE;
entry->fixed_style |= BC_FONT_ITALIC;
}
if(!strcasecmp(entry->swidth, "normal"))
entry->style = FL_WIDTH_NORMAL;
else if(!strcasecmp(entry->swidth, "ultracondensed"))
entry->style = FL_WIDTH_ULTRACONDENSED;
else if(!strcasecmp(entry->swidth, "extracondensed"))
entry->style = FL_WIDTH_EXTRACONDENSED;
else if(!strcasecmp(entry->swidth, "condensed"))
entry->style = FL_WIDTH_CONDENSED;
else if(!strcasecmp(entry->swidth, "semicondensed"))
entry->style = FL_WIDTH_SEMICONDENSED;
else if(!strcasecmp(entry->swidth, "semiexpanded"))
entry->style = FL_WIDTH_SEMIEXPANDED;
else if(!strcasecmp(entry->swidth, "expanded"))
entry->style = FL_WIDTH_EXPANDED;
else if(!strcasecmp(entry->swidth, "extraexpanded"))
entry->style = FL_WIDTH_EXTRAEXPANDED;
else if(!strcasecmp(entry->swidth, "ultraexpanded"))
entry->style = FL_WIDTH_ULTRAEXPANDED;
else
entry->style = FL_WIDTH_NORMAL;
fontlist->append(entry);
// printf("TitleMain::build_fonts %s: success\n", entry->path);
//printf("TitleMain::build_fonts 2\n");
}
pclose(in);
// Load all the fonts from fontconfig
FcPattern *pat;
FcFontSet *fs;
FcObjectSet *os;
FcChar8 *family, *file, *foundry, *style, *format;
int slant, spacing, width, weight;
int force_style = 0;
// if you want limit search to TrueType put 1
int limit_to_trutype = 1;
FcConfig *config;
int i;
char tmpstring[BCTEXTLEN];
if(!FcInit())
return 1;
config = FcConfigGetCurrent();
FcConfigSetRescanInterval(config, 0);
pat = FcPatternCreate();
os = FcObjectSetBuild ( FC_FAMILY, FC_FILE, FC_FOUNDRY, FC_WEIGHT,
FC_WIDTH, FC_SLANT, FC_FONTFORMAT, FC_SPACING, FC_STYLE, (char *) 0);
FcPatternAddBool(pat, FC_SCALABLE, true);
if(language[0]) {
char langstr[LEN_LANG * 3];
strcpy(langstr, language);
if(region[0]) {
strcat(langstr, "-");
strcat(langstr, region);
}
FcLangSet *ls = FcLangSetCreate();
if(FcLangSetAdd(ls, (const FcChar8*)langstr))
if(FcPatternAddLangSet(pat, FC_LANG, ls))
FcLangSetDestroy(ls);
}
fs = FcFontList(config, pat, os);
FcPatternDestroy(pat);
FcObjectSetDestroy(os);
for (i = 0; fs && i < fs->nfont; i++) {
FcPattern *font = fs->fonts[i];
force_style = 0;
FcPatternGetString(font, FC_FONTFORMAT, 0, &format);
//on this point you can limit font search
if(limit_to_trutype && strcmp((char *)format, "TrueType"))
continue;
sprintf(tmpstring, "%s", format);
BC_FontEntry *entry = new BC_FontEntry;
if(FcPatternGetString(font, FC_FILE, 0, &file) == FcResultMatch) {
entry->path = cstrdup((char*)file);
}
if(FcPatternGetString(font, FC_FOUNDRY, 0, &foundry) == FcResultMatch) {
entry->foundry = cstrdup((char*)foundry);
}
if(FcPatternGetInteger(font, FC_WEIGHT, 0, &weight) == FcResultMatch) {
switch(weight) {
case FC_WEIGHT_THIN:
case FC_WEIGHT_EXTRALIGHT:
case FC_WEIGHT_LIGHT:
case FC_WEIGHT_BOOK:
force_style = 1;
entry->weight = cstrdup("medium");
break;
case FC_WEIGHT_NORMAL:
case FC_WEIGHT_MEDIUM:
default:
entry->weight = cstrdup("medium");
break;
case FC_WEIGHT_BLACK:
case FC_WEIGHT_SEMIBOLD:
case FC_WEIGHT_BOLD:
entry->weight = cstrdup("bold");
entry->fixed_style |= BC_FONT_BOLD;
break;
case FC_WEIGHT_EXTRABOLD:
case FC_WEIGHT_EXTRABLACK:
force_style = 1;
entry->weight = cstrdup("bold");
entry->fixed_style |= BC_FONT_BOLD;
break;
}
}
if(FcPatternGetString(font, FC_FAMILY, 0, &family) == FcResultMatch)
entry->family = cstrdup((char*)family);
if(FcPatternGetInteger(font, FC_SLANT, 0, &slant) == FcResultMatch) {
switch(slant) {
case FC_SLANT_ROMAN:
default:
entry->slant = cstrdup("r");
entry->style |= FL_SLANT_ROMAN;
break;
case FC_SLANT_ITALIC:
entry->slant = cstrdup("i");
entry->style |= FL_SLANT_ITALIC;
entry->fixed_style |= BC_FONT_ITALIC;
break;
case FC_SLANT_OBLIQUE:
entry->slant = cstrdup("o");
entry->style |= FL_SLANT_OBLIQUE;
entry->fixed_style |= BC_FONT_ITALIC;
break;
}
}
if(FcPatternGetInteger(font, FC_WIDTH, 0, &width) == FcResultMatch) {
switch(width) {
case FC_WIDTH_ULTRACONDENSED:
entry->swidth = cstrdup("ultracondensed");
break;
case FC_WIDTH_EXTRACONDENSED:
entry->swidth = cstrdup("extracondensed");
break;
case FC_WIDTH_CONDENSED:
entry->swidth = cstrdup("condensed");
break;
case FC_WIDTH_SEMICONDENSED:
entry->swidth = cstrdup("semicondensed");
break;
case FC_WIDTH_NORMAL:
default:
entry->swidth = cstrdup("normal");
break;
case FC_WIDTH_SEMIEXPANDED:
entry->swidth = cstrdup("semiexpanded");
break;
case FC_WIDTH_EXPANDED:
entry->swidth = cstrdup("expanded");
break;
case FC_WIDTH_EXTRAEXPANDED:
entry->swidth = cstrdup("extraexpanded");
break;
case FC_WIDTH_ULTRAEXPANDED:
entry->swidth = cstrdup("ultraexpanded");
break;
}
}
if(FcPatternGetInteger(font, FC_SPACING, 0, &spacing) == FcResultMatch) {
switch(spacing) {
case 0:
default:
entry->spacing = cstrdup("p");
break;
case 90:
entry->spacing = cstrdup("d");
break;
case 100:
entry->spacing = cstrdup("m");
break;
case 110:
entry->spacing = cstrdup("c");
break;
}
}
// Add fake stuff for compatibility
entry->adstyle = cstrdup(" ");
entry->pixelsize = 0;
entry->pointsize = 0;
entry->xres = 0;
entry->yres = 0;
entry->avg_width = 0;
entry->registry = cstrdup("utf");
entry->encoding = cstrdup("8");
if(!FcPatternGetString(font, FC_STYLE, 0, &style) == FcResultMatch)
force_style = 0;
// If font has a style unmanaged by titler plugin, force style to be displayed on name
// in this way we can shown all available fonts styles.
if(force_style) {
sprintf(tmpstring, "%s (%s)", entry->family, style);
entry->displayname = cstrdup(tmpstring);
}
else {
if(strcmp(entry->foundry, "unknown")) {
sprintf(tmpstring, "%s (%s)", entry->family, entry->foundry);
entry->displayname = cstrdup(tmpstring);
}
else {
sprintf(tmpstring, "%s", entry->family);
entry->displayname = cstrdup(tmpstring);
}
}
fontlist->append(entry);
}
FcFontSetDestroy(fs);
if(freetype_library)
FT_Done_FreeType(freetype_library);
// for(int i = 0; i < fonts->total; i++)
// fonts->values[i]->dump();
FcConfigAppFontAddDir(0, (const FcChar8*)search_path);
FcConfigSetRescanInterval(0, 0);
os = FcObjectSetBuild(FC_FAMILY, FC_FILE, FC_FOUNDRY, FC_WEIGHT,
FC_WIDTH, FC_SLANT, FC_SPACING, FC_STYLE, (char *)0);
pat = FcPatternCreate();
FcPatternAddBool(pat, FC_SCALABLE, true);
if(language[0])
{
char langstr[LEN_LANG * 3];
strcpy(langstr, language);
if(region[0])
{
strcat(langstr, "-");
strcat(langstr, region);
}
FcLangSet *ls = FcLangSetCreate();
if(FcLangSetAdd(ls, (const FcChar8*)langstr))
if(FcPatternAddLangSet(pat, FC_LANG, ls))
FcLangSetDestroy(ls);
}
fs = FcFontList(0, pat, os);
FcPatternDestroy(pat);
FcObjectSetDestroy(os);
for(int i = 0; i < fs->nfont; i++)
{
FcPattern *font = fs->fonts[i];
BC_FontEntry *entry = new BC_FontEntry;
FcChar8 *strvalue;
if(FcPatternGetString(font, FC_FILE, 0, &strvalue) == FcResultMatch)
{
entry->path = new char[strlen((char*)strvalue) + 1];
strcpy(entry->path, (char*)strvalue);
}
if(FcPatternGetString(font, FC_FOUNDRY, 0, &strvalue) == FcResultMatch)
{
entry->foundry = new char[strlen((char*)strvalue) + 1];
strcpy(entry->foundry, (char *)strvalue);
}
if(FcPatternGetString(font, FC_FAMILY, 0, &strvalue) == FcResultMatch)
{
entry->family = new char[strlen((char*)strvalue) + 2];
strcpy(entry->family, (char*)strvalue);
}
int intvalue;
if(FcPatternGetInteger(font, FC_SLANT, 0, &intvalue) == FcResultMatch)
{
switch(intvalue)
{
case FC_SLANT_ROMAN:
default:
entry->style |= FL_SLANT_ROMAN;
break;
case FC_SLANT_ITALIC:
entry->style |= FL_SLANT_ITALIC;
break;
case FC_SLANT_OBLIQUE:
entry->style |= FL_SLANT_OBLIQUE;
break;
}
}
if(FcPatternGetInteger(font, FC_WEIGHT, 0, &intvalue) == FcResultMatch)
{
switch(intvalue)
{
case FC_WEIGHT_THIN:
entry->style |= FL_WEIGHT_THIN;
break;
case FC_WEIGHT_EXTRALIGHT:
entry->style |= FL_WEIGHT_EXTRALIGHT;
break;
case FC_WEIGHT_LIGHT:
entry->style |= FL_WEIGHT_LIGHT;
break;
case FC_WEIGHT_BOOK:
entry->style |= FL_WEIGHT_BOOK;
break;
case FC_WEIGHT_NORMAL:
default:
entry->style |= FL_WEIGHT_NORMAL;
break;
case FC_WEIGHT_MEDIUM:
entry->style |= FL_WEIGHT_MEDIUM;
break;
case FC_WEIGHT_DEMIBOLD:
entry->style |= FL_WEIGHT_DEMIBOLD;
break;
case FC_WEIGHT_BOLD:
entry->style |= FL_WEIGHT_BOLD;
break;
case FC_WEIGHT_EXTRABOLD:
entry->style |= FL_WEIGHT_EXTRABOLD;
break;
case FC_WEIGHT_BLACK:
entry->style |= FL_WEIGHT_BLACK;
break;
case FC_WEIGHT_EXTRABLACK:
entry->style |= FL_WEIGHT_EXTRABLACK;
break;
}
}
if(FcPatternGetInteger(font, FC_WIDTH, 0, &intvalue) == FcResultMatch)
{
switch(intvalue)
{
case FC_WIDTH_ULTRACONDENSED:
entry->style |= FL_WIDTH_ULTRACONDENSED;
break;
case FC_WIDTH_EXTRACONDENSED:
entry->style |= FL_WIDTH_EXTRACONDENSED;
break;
case FC_WIDTH_CONDENSED:
entry->style |= FL_WIDTH_CONDENSED;
break;
case FC_WIDTH_SEMICONDENSED:
entry->style = FL_WIDTH_SEMICONDENSED;
break;
case FC_WIDTH_NORMAL:
default:
entry->style |= FL_WIDTH_NORMAL;
break;
case FC_WIDTH_SEMIEXPANDED:
entry->style |= FL_WIDTH_SEMIEXPANDED;
break;
case FC_WIDTH_EXPANDED:
entry->style |= FL_WIDTH_EXPANDED;
break;
case FC_WIDTH_EXTRAEXPANDED:
entry->style |= FL_WIDTH_EXTRAEXPANDED;
break;
case FC_WIDTH_ULTRAEXPANDED:
entry->style |= FL_WIDTH_ULTRAEXPANDED;
break;
}
}
if(FcPatternGetInteger(font, FC_SPACING, 0, &intvalue) == FcResultMatch)
{
switch(intvalue)
{
case FC_PROPORTIONAL:
default:
entry->style |= FL_PROPORTIONAL;
break;
case FC_DUAL:
entry->style |= FL_DUAL;
break;
case FC_MONO:
entry->style |= FL_MONO;
break;
case FC_CHARCELL:
entry->style |= FL_CHARCELL;
break;
}
}
if(entry->foundry && strcmp(entry->foundry, "unknown"))
{
char tempstr[BCTEXTLEN];
sprintf(tempstr, "%s (%s)", entry->family, entry->foundry);
entry->displayname = new char[strlen(tempstr) + 1];
strcpy(entry->displayname, tempstr);
}
else
{
entry->displayname = new char[strlen(entry->family) + 1];
strcpy(entry->displayname, entry->family);
}
fontlist->append(entry);
}
FcFontSetDestroy(fs);
return 0;
}
bool SkFontConfigInterfaceDirect::matchFamilySet(const char inFamilyName[],
SkString* outFamilyName,
SkTArray<FontIdentity>* ids) {
SkAutoMutexAcquire ac(mutex_);
#if 0
SkString familyStr(familyName ? familyName : "");
if (familyStr.size() > kMaxFontFamilyLength) {
return false;
}
SkAutoMutexAcquire ac(mutex_);
FcPattern* pattern = FcPatternCreate();
if (familyName) {
FcPatternAddString(pattern, FC_FAMILY, (FcChar8*)familyName);
}
FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
FcConfigSubstitute(NULL, pattern, FcMatchPattern);
FcDefaultSubstitute(pattern);
// Font matching:
// CSS often specifies a fallback list of families:
// font-family: a, b, c, serif;
// However, fontconfig will always do its best to find *a* font when asked
// for something so we need a way to tell if the match which it has found is
// "good enough" for us. Otherwise, we can return NULL which gets piped up
// and lets WebKit know to try the next CSS family name. However, fontconfig
// configs allow substitutions (mapping "Arial -> Helvetica" etc) and we
// wish to support that.
//
// Thus, if a specific family is requested we set @family_requested. Then we
// record two strings: the family name after config processing and the
// family name after resolving. If the two are equal, it's a good match.
//
// So consider the case where a user has mapped Arial to Helvetica in their
// config.
// requested family: "Arial"
// post_config_family: "Helvetica"
// post_match_family: "Helvetica"
// -> good match
//
// and for a missing font:
// requested family: "Monaco"
// post_config_family: "Monaco"
// post_match_family: "Times New Roman"
// -> BAD match
//
// However, we special-case fallback fonts; see IsFallbackFontAllowed().
const char* post_config_family = get_name(pattern, FC_FAMILY);
FcResult result;
FcFontSet* font_set = FcFontSort(0, pattern, 0, 0, &result);
if (!font_set) {
FcPatternDestroy(pattern);
return false;
}
FcPattern* match = MatchFont(font_set, post_config_family, familyStr);
if (!match) {
FcPatternDestroy(pattern);
FcFontSetDestroy(font_set);
return false;
}
FcPatternDestroy(pattern);
// From here out we just extract our results from 'match'
if (FcPatternGetString(match, FC_FAMILY, 0, &post_config_family) != FcResultMatch) {
FcFontSetDestroy(font_set);
return false;
}
FcChar8* c_filename;
if (FcPatternGetString(match, FC_FILE, 0, &c_filename) != FcResultMatch) {
FcFontSetDestroy(font_set);
return false;
}
int face_index;
if (FcPatternGetInteger(match, FC_INDEX, 0, &face_index) != FcResultMatch) {
FcFontSetDestroy(font_set);
return false;
}
FcFontSetDestroy(font_set);
if (outIdentity) {
outIdentity->fTTCIndex = face_index;
outIdentity->fString.set((const char*)c_filename);
}
if (outFamilyName) {
outFamilyName->set((const char*)post_config_family);
}
if (outStyle) {
*outStyle = GetFontStyle(match);
}
return true;
////////////////////
int count;
FcPattern** match = MatchFont(font_set, post_config_family, &count);
if (!match) {
FcPatternDestroy(pattern);
FcFontSetDestroy(font_set);
return NULL;
}
FcPatternDestroy(pattern);
SkTDArray<FcPattern*> trimmedMatches;
for (int i = 0; i < count; ++i) {
const char* justName = find_just_name(get_name(match[i], FC_FILE));
if (!is_lower(*justName)) {
*trimmedMatches.append() = match[i];
}
}
SkFontStyleSet_FC* sset = new SkFontStyleSet_FC (trimmedMatches.begin(), trimmedMatches.count());
#endif
return false;
}
static cairo_status_t
create_scaled_font (cairo_t * cr,
cairo_scaled_font_t **out)
{
FcPattern *pattern, *resolved;
FcResult result;
cairo_font_face_t *font_face;
cairo_scaled_font_t *scaled_font;
cairo_font_options_t *font_options;
cairo_matrix_t font_matrix, ctm;
cairo_status_t status;
double pixel_size;
font_options = cairo_font_options_create ();
cairo_get_font_options (cr, font_options);
pattern = FcPatternCreate ();
if (pattern == NULL)
return CAIRO_STATUS_NO_MEMORY;
FcPatternAddString (pattern, FC_FAMILY, (FcChar8 *)CAIRO_TEST_FONT_FAMILY " Sans");
FcPatternAddDouble (pattern, FC_PIXEL_SIZE, TEXT_SIZE);
FcConfigSubstitute (NULL, pattern, FcMatchPattern);
cairo_ft_font_options_substitute (font_options, pattern);
FcDefaultSubstitute (pattern);
resolved = FcFontMatch (NULL, pattern, &result);
if (resolved == NULL) {
FcPatternDestroy (pattern);
return CAIRO_STATUS_NO_MEMORY;
}
/* set layout to vertical */
FcPatternDel (resolved, FC_VERTICAL_LAYOUT);
FcPatternAddBool (resolved, FC_VERTICAL_LAYOUT, FcTrue);
FcPatternGetDouble (resolved, FC_PIXEL_SIZE, 0, &pixel_size);
font_face = cairo_ft_font_face_create_for_pattern (resolved);
cairo_matrix_init_translate (&font_matrix, 10, 30);
cairo_matrix_rotate (&font_matrix, M_PI_2/3);
cairo_matrix_scale (&font_matrix, pixel_size, pixel_size);
cairo_get_matrix (cr, &ctm);
scaled_font = cairo_scaled_font_create (font_face,
&font_matrix,
&ctm,
font_options);
cairo_font_options_destroy (font_options);
cairo_font_face_destroy (font_face);
FcPatternDestroy (pattern);
FcPatternDestroy (resolved);
status = cairo_scaled_font_status (scaled_font);
if (status) {
cairo_scaled_font_destroy (scaled_font);
return status;
}
*out = scaled_font;
return CAIRO_STATUS_SUCCESS;
}
static int parse_font(AVFilterContext *ctx)
{
DrawTextContext *s = ctx->priv;
#if !CONFIG_LIBFONTCONFIG
if (!s->fontfile) {
av_log(ctx, AV_LOG_ERROR, "No font filename provided\n");
return AVERROR(EINVAL);
}
return 0;
#else
FcPattern *pat, *best;
FcResult result = FcResultMatch;
FcBool fc_bool;
FcChar8* fc_string;
int err = AVERROR(ENOENT);
if (s->fontfile)
return 0;
if (!FcInit())
return AVERROR_UNKNOWN;
if (!(pat = FcPatternCreate()))
return AVERROR(ENOMEM);
FcPatternAddString(pat, FC_FAMILY, s->font);
FcPatternAddBool(pat, FC_OUTLINE, FcTrue);
FcPatternAddDouble(pat, FC_SIZE, (double)s->fontsize);
FcDefaultSubstitute(pat);
if (!FcConfigSubstitute(NULL, pat, FcMatchPattern)) {
FcPatternDestroy(pat);
return AVERROR(ENOMEM);
}
best = FcFontMatch(NULL, pat, &result);
FcPatternDestroy(pat);
if (!best || result == FcResultNoMatch) {
av_log(ctx, AV_LOG_ERROR,
"Cannot find a valid font for the family %s\n",
s->font);
goto fail;
}
if (FcPatternGetBool(best, FC_OUTLINE, 0, &fc_bool) != FcResultMatch ||
!fc_bool) {
av_log(ctx, AV_LOG_ERROR, "Outline not available for %s\n",
s->font);
goto fail;
}
if (FcPatternGetString(best, FC_FAMILY, 0, &fc_string) != FcResultMatch) {
av_log(ctx, AV_LOG_ERROR, "No matches for %s\n",
s->font);
goto fail;
}
if (FcPatternGetString(best, FC_FILE, 0, &fc_string) != FcResultMatch) {
av_log(ctx, AV_LOG_ERROR, "No file path for %s\n",
s->font);
goto fail;
}
s->fontfile = av_strdup(fc_string);
if (!s->fontfile)
err = AVERROR(ENOMEM);
else
err = 0;
fail:
FcPatternDestroy(best);
return err;
#endif
}
