static hb_bool_t getGlyph(hb_font_t* hbFont, void* fontData, hb_codepoint_t unicode, hb_codepoint_t variationSelector, hb_codepoint_t* glyph, void* userData)
{
CTFontRef ctFont = reinterpret_cast<FontPlatformData*>(fontData)->ctFont();
UniChar characters[4];
CGGlyph cgGlyphs[4];
size_t length = 0;
U16_APPEND_UNSAFE(characters, length, unicode);
if (!CTFontGetGlyphsForCharacters(ctFont, characters, cgGlyphs, length))
return false;
*glyph = cgGlyphs[0];
return true;
}
void FX_GetCharWidth(CTFontRef font, UniChar start, UniChar end, int* width)
{
CGFloat size = CTFontGetSize(font);
for (; start <= end; ++start) {
CGGlyph pGlyph = 0;
CFIndex count = 1;
CTFontGetGlyphsForCharacters(font, &start, &pGlyph, count);
CGSize advances;
CTFontGetAdvancesForGlyphs(font, kCTFontDefaultOrientation, &pGlyph, &advances, 1);
*width = (int)(advances.width / size * 1000) ;
width++;
}
}
bool GlyphPage::fill(UChar* buffer, unsigned bufferLength, const Font* fontData)
{
bool haveGlyphs = false;
Vector<CGGlyph, 512> glyphs(bufferLength);
if (!shouldUseCoreText(buffer, bufferLength, fontData)) {
// We pass in either 256 or 512 UTF-16 characters: 256 for U+FFFF and less, 512 (double character surrogates)
// for U+10000 and above. It is indeed possible to get back 512 glyphs back from the API, so the glyph buffer
// we pass in must be 512. If we get back more than 256 glyphs though we'll ignore all the ones after 256,
// this should not happen as the only time we pass in 512 characters is when they are surrogates.
CGFontGetGlyphsForUnichars(fontData->platformData().cgFont(), buffer, glyphs.data(), bufferLength);
for (unsigned i = 0; i < GlyphPage::size; ++i) {
if (!glyphs[i])
setGlyphDataForIndex(i, 0, 0);
else {
setGlyphDataForIndex(i, glyphs[i], fontData);
haveGlyphs = true;
}
}
} else {
// Because we know the implementation of shouldUseCoreText(), if the font isn't for text combine and it isn't a system font,
// we know it must have vertical glyphs.
if (fontData->platformData().isForTextCombine() || fontData->isSystemFont())
CTFontGetGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength);
else
CTFontGetVerticalGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength);
// When buffer consists of surrogate pairs, CTFontGetVerticalGlyphsForCharacters and CTFontGetGlyphsForCharacters
// place the glyphs at indices corresponding to the first character of each pair.
ASSERT(bufferLength == GlyphPage::size || bufferLength == 2 * GlyphPage::size);
unsigned glyphStep = bufferLength / GlyphPage::size;
for (unsigned i = 0; i < GlyphPage::size; ++i) {
if (!glyphs[i * glyphStep])
setGlyphDataForIndex(i, 0, 0);
else {
setGlyphDataForIndex(i, glyphs[i * glyphStep], fontData);
haveGlyphs = true;
}
}
}
return haveGlyphs;
}
bool sdl_osd_interface::font_get_bitmap(osd_font font, unicode_char chnum, bitmap_argb32 &bitmap, INT32 &width, INT32 &xoffs, INT32 &yoffs)
{
UniChar uni_char;
CGGlyph glyph;
CTFontRef ct_font = (CTFontRef)font;
const CFIndex count = 1;
CGRect bounding_rect, success_rect;
CGContextRef context_ref;
if( chnum == ' ' )
{
uni_char = 'n';
CTFontGetGlyphsForCharacters( ct_font, &uni_char, &glyph, count );
success_rect = CTFontGetBoundingRectsForGlyphs( ct_font, kCTFontDefaultOrientation, &glyph, &bounding_rect, count );
uni_char = chnum;
CTFontGetGlyphsForCharacters( ct_font, &uni_char, &glyph, count );
}
else
{
uni_char = chnum;
CTFontGetGlyphsForCharacters( ct_font, &uni_char, &glyph, count );
success_rect = CTFontGetBoundingRectsForGlyphs( ct_font, kCTFontDefaultOrientation, &glyph, &bounding_rect, count );
}
if( CGRectEqualToRect( success_rect, CGRectNull ) == false )
{
size_t bitmap_width;
size_t bitmap_height;
bitmap_width = ceilf(bounding_rect.size.width * EXTRA_WIDTH);
bitmap_width = bitmap_width == 0 ? 1 : bitmap_width;
bitmap_height = ceilf( (CTFontGetAscent(ct_font) + CTFontGetDescent(ct_font) + CTFontGetLeading(ct_font)) * EXTRA_HEIGHT);
xoffs = yoffs = 0;
width = bitmap_width;
size_t bits_per_component;
CGColorSpaceRef color_space;
CGBitmapInfo bitmap_info = kCGBitmapByteOrder32Host | kCGImageAlphaPremultipliedFirst;
color_space = CGColorSpaceCreateDeviceRGB();
bits_per_component = 8;
bitmap.allocate(bitmap_width, bitmap_height);
context_ref = CGBitmapContextCreate( bitmap.raw_pixptr(0), bitmap_width, bitmap_height, bits_per_component, bitmap.rowpixels()*4, color_space, bitmap_info );
if( context_ref != NULL )
{
CGFontRef font_ref;
font_ref = CTFontCopyGraphicsFont( ct_font, NULL );
CGContextSetTextPosition(context_ref, -bounding_rect.origin.x*EXTRA_WIDTH, CTFontGetDescent(ct_font)+CTFontGetLeading(ct_font) );
CGContextSetRGBFillColor(context_ref, 1.0, 1.0, 1.0, 1.0);
CGContextSetFont( context_ref, font_ref );
CGContextSetFontSize( context_ref, POINT_SIZE );
CGContextShowGlyphs( context_ref, &glyph, count );
CGFontRelease( font_ref );
CGContextRelease( context_ref );
}
CGColorSpaceRelease( color_space );
}
return bitmap.valid();
}
static OSStatus local_CoreTR(CGContextRef ctx, CGRect r, CFStringRef string,
CFStringRef fontName, CGFloat fontSize,
TRFallbackBehavior fallbackBehavior,
Boolean render, CGFloat baseline, TRInfo* oInfo)
{
if (!ctx || !string || !fontName) return paramErr;
CGContextSaveGState(ctx);
CGContextSetTextMatrix(ctx, CGAffineTransformIdentity);
CTFontDescriptorRef fdesc = CTFontDescriptorCreateWithNameAndSize(fontName, fontSize);
CTFontRef font = CTFontCreateWithFontDescriptor(fdesc, fontSize, NULL);
CFIndex slen = CFStringGetLength(string);
CFRange range = CFRangeMake(0L,slen);
UniChar* buff = calloc(slen, sizeof(UniChar));
CFStringGetCharacters(string, range, buff);
CGGlyph* glyphs = calloc(slen, sizeof(CGGlyph));
Boolean supported = CTFontGetGlyphsForCharacters(font, buff, glyphs, slen);
//NSLog(@"%@ supported for '%@'? %d", fontName, string, supported);
CFRelease(fdesc);
if (!supported)
{
if (fallbackBehavior == TRLastResortFallbackBehavior)
{
CFRelease(font);
fdesc = CTFontDescriptorCreateWithNameAndSize(CFSTR("LastResort"), fontSize);
font = CTFontCreateWithFontDescriptor(fdesc, fontSize, NULL);
CFRelease(fdesc);
supported = true;
}
else
{
CFRange rng = CFRangeMake(0L, CFStringGetLength(string));
CTFontRef font2 = CTFontCreateForString(font, string, rng);
CFRelease(font);
CFStringRef fontName2 = CTFontCopyName(font2, kCTFontFullNameKey);
fdesc = CTFontDescriptorCreateWithNameAndSize(fontName2, fontSize);
//NSLog(@"falling back to %@ from %@ : %@", fontName2, fontName, fdesc);
CFRelease(fontName2);
font = CTFontCreateWithFontDescriptor(fdesc, fontSize, NULL);
CFRelease(fdesc);
supported = CTFontGetGlyphsForCharacters(font, buff, glyphs, slen);
}
}
free(buff);
free(glyphs);
CFMutableDictionaryRef attrs = CFDictionaryCreateMutable(kCFAllocatorDefault,
1L, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(attrs, kCTFontAttributeName, font);
CFAttributedStringRef attrStr = CFAttributedStringCreate(kCFAllocatorDefault,
string, attrs);
CFRelease(attrs);
CTLineRef line = CTLineCreateWithAttributedString(attrStr);
CFRelease(attrStr);
CGRect bounds = CTLineGetImageBounds(line, ctx);
CGFloat descent = CTFontGetDescent(font);
CGFloat ascent = CTFontGetAscent(font);
CFRelease(font);
if (baseline < 0.0L)
baseline = ((r.size.height - bounds.size.height + descent)/2.0L);
if (render && (supported || fallbackBehavior != TRNoRenderFallbackBehavior))
{
CGFloat x = r.origin.x + (r.size.width/2.0L) - (bounds.size.width/2.0L) - bounds.origin.x;
CGFloat y = r.origin.y + baseline;
CGPoint where = CGPointMake(x, y);
CGContextSetTextPosition(ctx, where.x, where.y);
CTLineDraw(line, ctx);
}
CFRelease(line);
if (oInfo)
{
oInfo->height = bounds.size.height + descent;
oInfo->width = bounds.size.width;
oInfo->ascent = ascent;
oInfo->descent = descent;
oInfo->baseline = baseline;
oInfo->fontSupported = supported;
}
CGContextRestoreGState(ctx);
return (supported)? noErr:kATSUFontsNotMatched;
}
bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData)
{
bool haveGlyphs = false;
Vector<CGGlyph, 512> glyphs(bufferLength);
if (!shouldUseCoreText(buffer, bufferLength, fontData)) {
// We pass in either 256 or 512 UTF-16 characters: 256 for U+FFFF and less, 512 (double character surrogates)
// for U+10000 and above. It is indeed possible to get back 512 glyphs back from the API, so the glyph buffer
// we pass in must be 512. If we get back more than 256 glyphs though we'll ignore all the ones after 256,
// this should not happen as the only time we pass in 512 characters is when they are surrogates.
CGFontGetGlyphsForUnichars(fontData->platformData().cgFont(), buffer, glyphs.data(), bufferLength);
for (unsigned i = 0; i < length; ++i) {
if (!glyphs[i])
setGlyphDataForIndex(offset + i, 0, 0);
else {
setGlyphDataForIndex(offset + i, glyphs[i], fontData);
haveGlyphs = true;
}
}
} else if (!fontData->platformData().isCompositeFontReference() && ((fontData->platformData().widthVariant() == RegularWidth) ? wkGetVerticalGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength)
: CTFontGetGlyphsForCharacters(fontData->platformData().ctFont(), buffer, glyphs.data(), bufferLength))) {
// When buffer consists of surrogate pairs, wkGetVerticalGlyphsForCharacters and CTFontGetGlyphsForCharacters
// place the glyphs at indices corresponding to the first character of each pair.
unsigned glyphStep = bufferLength / length;
for (unsigned i = 0; i < length; ++i) {
if (!glyphs[i * glyphStep])
setGlyphDataForIndex(offset + i, 0, 0);
else {
setGlyphDataForIndex(offset + i, glyphs[i * glyphStep], fontData);
haveGlyphs = true;
}
}
} else {
// We ask CoreText for possible vertical variant glyphs
RetainPtr<CFStringRef> string = adoptCF(CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, buffer, bufferLength, kCFAllocatorNull));
RetainPtr<CFAttributedStringRef> attributedString = adoptCF(CFAttributedStringCreate(kCFAllocatorDefault, string.get(), fontData->getCFStringAttributes(0, fontData->hasVerticalGlyphs() ? Vertical : Horizontal)));
RetainPtr<CTLineRef> line = adoptCF(CTLineCreateWithAttributedString(attributedString.get()));
CFArrayRef runArray = CTLineGetGlyphRuns(line.get());
CFIndex runCount = CFArrayGetCount(runArray);
// Initialize glyph entries
for (unsigned index = 0; index < length; ++index)
setGlyphDataForIndex(offset + index, 0, 0);
Vector<CGGlyph, 512> glyphVector;
Vector<CFIndex, 512> indexVector;
bool done = false;
// For the CGFont comparison in the loop, use the CGFont that Core Text assigns to the CTFont. This may
// be non-CFEqual to fontData->platformData().cgFont().
RetainPtr<CGFontRef> cgFont = adoptCF(CTFontCopyGraphicsFont(fontData->platformData().ctFont(), 0));
for (CFIndex r = 0; r < runCount && !done ; ++r) {
// CTLine could map characters over multiple fonts using its own font fallback list.
// We need to pick runs that use the exact font we need, i.e., fontData->platformData().ctFont().
CTRunRef ctRun = static_cast<CTRunRef>(CFArrayGetValueAtIndex(runArray, r));
ASSERT(CFGetTypeID(ctRun) == CTRunGetTypeID());
CFDictionaryRef attributes = CTRunGetAttributes(ctRun);
CTFontRef runFont = static_cast<CTFontRef>(CFDictionaryGetValue(attributes, kCTFontAttributeName));
RetainPtr<CGFontRef> runCGFont = adoptCF(CTFontCopyGraphicsFont(runFont, 0));
// Use CGFont here as CFEqual for CTFont counts all attributes for font.
bool gotBaseFont = CFEqual(cgFont.get(), runCGFont.get());
if (gotBaseFont || fontData->platformData().isCompositeFontReference()) {
// This run uses the font we want. Extract glyphs.
CFIndex glyphCount = CTRunGetGlyphCount(ctRun);
const CGGlyph* glyphs = CTRunGetGlyphsPtr(ctRun);
if (!glyphs) {
glyphVector.resize(glyphCount);
CTRunGetGlyphs(ctRun, CFRangeMake(0, 0), glyphVector.data());
glyphs = glyphVector.data();
}
const CFIndex* stringIndices = CTRunGetStringIndicesPtr(ctRun);
if (!stringIndices) {
indexVector.resize(glyphCount);
CTRunGetStringIndices(ctRun, CFRangeMake(0, 0), indexVector.data());
stringIndices = indexVector.data();
}
if (gotBaseFont) {
for (CFIndex i = 0; i < glyphCount; ++i) {
if (stringIndices[i] >= static_cast<CFIndex>(length)) {
done = true;
break;
}
if (glyphs[i]) {
setGlyphDataForIndex(offset + stringIndices[i], glyphs[i], fontData);
haveGlyphs = true;
}
}
#if !PLATFORM(IOS)
} else {
const SimpleFontData* runSimple = fontData->getCompositeFontReferenceFontData((NSFont *)runFont);
if (runSimple) {
for (CFIndex i = 0; i < glyphCount; ++i) {
if (stringIndices[i] >= static_cast<CFIndex>(length)) {
done = true;
break;
}
if (glyphs[i]) {
setGlyphDataForIndex(offset + stringIndices[i], glyphs[i], runSimple);
haveGlyphs = true;
}
}
}
#endif // !PLATFORM(IOS)
}
}
}
}
return haveGlyphs;
}
CPDF_Font* CPDF_Document::AddMacFont(CTFontRef pFont, FX_BOOL bVert, FX_BOOL bTranslateName)
{
CTFontRef font = (CTFontRef)pFont;
CTFontDescriptorRef descriptor = CTFontCopyFontDescriptor(font);
if (descriptor == NULL) {
return NULL;
}
CFX_ByteString basefont;
FX_BOOL bCJK = FALSE;
int flags = 0, italicangle = 0, ascend = 0, descend = 0, capheight = 0, bbox[4];
FXSYS_memset32(bbox, 0, sizeof(int) * 4);
CFArrayRef languages = (CFArrayRef)CTFontDescriptorCopyAttribute(descriptor, kCTFontLanguagesAttribute);
if (languages == NULL) {
CFRelease(descriptor);
return NULL;
}
CFX_DWordArray charSets;
charSets.Add(FXFONT_CHINESEBIG5_CHARSET);
charSets.Add(FXFONT_GB2312_CHARSET);
charSets.Add(FXFONT_HANGEUL_CHARSET);
charSets.Add(FXFONT_SHIFTJIS_CHARSET);
if (IsHasCharSet(languages, charSets)) {
bCJK = TRUE;
}
CFRelease(descriptor);
CFDictionaryRef traits = (CFDictionaryRef)CTFontCopyTraits(font);
if (traits == NULL) {
CFRelease(languages);
return NULL;
}
CFNumberRef sybolicTrait = (CFNumberRef)CFDictionaryGetValue(traits, kCTFontSymbolicTrait);
CTFontSymbolicTraits trait = 0;
CFNumberGetValue(sybolicTrait, kCFNumberSInt32Type, &trait);
if (trait & kCTFontItalicTrait) {
flags |= PDFFONT_ITALIC;
}
if (trait & kCTFontMonoSpaceTrait) {
flags |= PDFFONT_FIXEDPITCH;
}
if (trait & kCTFontModernSerifsClass) {
flags |= PDFFONT_SERIF;
}
if (trait & kCTFontScriptsClass) {
flags |= PDFFONT_SCRIPT;
}
CFNumberRef weightTrait = (CFNumberRef)CFDictionaryGetValue(traits, kCTFontWeightTrait);
Float32 weight = 0;
CFNumberGetValue(weightTrait, kCFNumberFloat32Type, &weight);
italicangle = CTFontGetSlantAngle(font);
ascend = CTFontGetAscent(font);
descend = CTFontGetDescent(font);
capheight = CTFontGetCapHeight(font);
CGRect box = CTFontGetBoundingBox(font);
bbox[0] = box.origin.x;
bbox[1] = box.origin.y;
bbox[2] = box.origin.x + box.size.width;
bbox[3] = box.origin.y + box.size.height;
if (bTranslateName && bCJK) {
CFStringRef postName = CTFontCopyPostScriptName(font);
_CFString2CFXByteString(postName, basefont);
CFRelease(postName);
}
if (basefont.IsEmpty()) {
CFStringRef fullName = CTFontCopyFullName(font);
_CFString2CFXByteString(fullName, basefont);
CFRelease(fullName);
}
basefont.Replace(" ", "");
CPDF_Dictionary* pFontDict = NULL;
CPDF_Dictionary* pBaseDict = FX_NEW CPDF_Dictionary;
pFontDict = pBaseDict;
if (!bCJK) {
charSets.RemoveAll();
charSets.Add(FXFONT_ANSI_CHARSET);
charSets.Add(FXFONT_DEFAULT_CHARSET);
charSets.Add(FXFONT_SYMBOL_CHARSET);
if (IsHasCharSet(languages, charSets)) {
charSets.RemoveAll();
charSets.Add(FXFONT_SYMBOL_CHARSET);
if (IsHasCharSet(languages, charSets)) {
flags |= PDFFONT_SYMBOLIC;
} else {
flags |= PDFFONT_NONSYMBOLIC;
}
pBaseDict->SetAtName(FX_BSTRC("Encoding"), "WinAnsiEncoding");
} else {
flags |= PDFFONT_NONSYMBOLIC;
int i;
for (i = 0; i < sizeof g_FX_CharsetUnicodes / sizeof(FX_CharsetUnicodes); i ++) {
charSets.RemoveAll();
charSets.Add(g_FX_CharsetUnicodes[i].m_Charset);
if (IsHasCharSet(languages, charSets)) {
break;
}
}
if (i < sizeof g_FX_CharsetUnicodes / sizeof(FX_CharsetUnicodes)) {
CPDF_Dictionary* pEncoding = FX_NEW CPDF_Dictionary;
pEncoding->SetAtName(FX_BSTRC("BaseEncoding"), "WinAnsiEncoding");
CPDF_Array* pArray = FX_NEW CPDF_Array;
pArray->AddInteger(128);
const FX_WCHAR* pUnicodes = g_FX_CharsetUnicodes[i].m_pUnicodes;
for (int j = 0; j < 128; j ++) {
CFX_ByteString name = PDF_AdobeNameFromUnicode(pUnicodes[j]);
if (name.IsEmpty()) {
pArray->AddName(FX_BSTRC(".notdef"));
} else {
pArray->AddName(name);
}
}
pEncoding->SetAt(FX_BSTRC("Differences"), pArray);
AddIndirectObject(pEncoding);
pBaseDict->SetAtReference(FX_BSTRC("Encoding"), this, pEncoding);
}
}
if (weight > 0.0 && trait & kCTFontItalicTrait) {
basefont += ",BoldItalic";
} else if (weight > 0.0) {
basefont += ",Bold";
} else if (trait & kCTFontItalicTrait) {
basefont += ",Italic";
}
pBaseDict->SetAtName("Subtype", "TrueType");
pBaseDict->SetAtName("BaseFont", basefont);
pBaseDict->SetAtNumber("FirstChar", 32);
pBaseDict->SetAtNumber("LastChar", 255);
int char_widths[224];
FX_GetCharWidth(font, 32, 255, char_widths);
CPDF_Array* pWidths = FX_NEW CPDF_Array;
for (int i = 0; i < 224; i ++) {
pWidths->AddInteger(char_widths[i]);
}
pBaseDict->SetAt("Widths", pWidths);
} else {
flags |= PDFFONT_NONSYMBOLIC;
CPDF_Array* pArray = NULL;
pFontDict = FX_NEW CPDF_Dictionary;
CFX_ByteString cmap;
CFX_ByteString ordering;
int supplement;
FX_BOOL bFound = FALSE;
CPDF_Array* pWidthArray = FX_NEW CPDF_Array;
charSets.RemoveAll();
charSets.Add(FXFONT_CHINESEBIG5_CHARSET);
if (IsHasCharSet(languages, charSets)) {
cmap = bVert ? "ETenms-B5-V" : "ETenms-B5-H";
ordering = "CNS1";
supplement = 4;
pWidthArray->AddInteger(1);
_InsertWidthArray(font, 0x20, 0x7e, pWidthArray);
bFound = TRUE;
}
charSets.RemoveAll();
charSets.Add(FXFONT_GB2312_CHARSET);
if (!bFound && IsHasCharSet(languages, charSets)) {
cmap = bVert ? "GBK-EUC-V" : "GBK-EUC-H";
ordering = "GB1", supplement = 2;
pWidthArray->AddInteger(7716);
_InsertWidthArray(font, 0x20, 0x20, pWidthArray);
pWidthArray->AddInteger(814);
_InsertWidthArray(font, 0x21, 0x7e, pWidthArray);
bFound = TRUE;
}
charSets.RemoveAll();
charSets.Add(FXFONT_HANGEUL_CHARSET);
if (!bFound && IsHasCharSet(languages, charSets)) {
cmap = bVert ? "KSCms-UHC-V" : "KSCms-UHC-H";
ordering = "Korea1";
supplement = 2;
pWidthArray->AddInteger(1);
_InsertWidthArray(font, 0x20, 0x7e, pWidthArray);
bFound = TRUE;
}
charSets.RemoveAll();
charSets.Add(FXFONT_SHIFTJIS_CHARSET);
if (!bFound && IsHasCharSet(languages, charSets)) {
cmap = bVert ? "90ms-RKSJ-V" : "90ms-RKSJ-H";
ordering = "Japan1";
supplement = 5;
pWidthArray->AddInteger(231);
_InsertWidthArray(font, 0x20, 0x7d, pWidthArray);
pWidthArray->AddInteger(326);
_InsertWidthArray(font, 0xa0, 0xa0, pWidthArray);
pWidthArray->AddInteger(327);
_InsertWidthArray(font, 0xa1, 0xdf, pWidthArray);
pWidthArray->AddInteger(631);
_InsertWidthArray(font, 0x7e, 0x7e, pWidthArray);
}
pBaseDict->SetAtName("Subtype", "Type0");
pBaseDict->SetAtName("BaseFont", basefont);
pBaseDict->SetAtName("Encoding", cmap);
pFontDict->SetAt("W", pWidthArray);
pFontDict->SetAtName("Type", "Font");
pFontDict->SetAtName("Subtype", "CIDFontType2");
pFontDict->SetAtName("BaseFont", basefont);
CPDF_Dictionary* pCIDSysInfo = FX_NEW CPDF_Dictionary;
pCIDSysInfo->SetAtString("Registry", "Adobe");
pCIDSysInfo->SetAtString("Ordering", ordering);
pCIDSysInfo->SetAtInteger("Supplement", supplement);
pFontDict->SetAt("CIDSystemInfo", pCIDSysInfo);
pArray = FX_NEW CPDF_Array;
pBaseDict->SetAt("DescendantFonts", pArray);
AddIndirectObject(pFontDict);
pArray->AddReference(this, pFontDict);
}
AddIndirectObject(pBaseDict);
CPDF_Dictionary* pFontDesc = FX_NEW CPDF_Dictionary;
pFontDesc->SetAtName("Type", "FontDescriptor");
pFontDesc->SetAtName("FontName", basefont);
pFontDesc->SetAtInteger("Flags", flags);
CPDF_Array* pBBox = FX_NEW CPDF_Array;
for (int i = 0; i < 4; i ++) {
pBBox->AddInteger(bbox[i]);
}
pFontDesc->SetAt("FontBBox", pBBox);
pFontDesc->SetAtInteger("ItalicAngle", italicangle);
pFontDesc->SetAtInteger("Ascent", ascend);
pFontDesc->SetAtInteger("Descent", descend);
pFontDesc->SetAtInteger("CapHeight", capheight);
CGFloat fStemV = 0;
int16_t min_width = SHRT_MAX;
static const UniChar stem_chars[] = {'i', 'I', '!', '1'};
const size_t count = sizeof(stem_chars) / sizeof(stem_chars[0]);
CGGlyph glyphs[count];
CGRect boundingRects[count];
if (CTFontGetGlyphsForCharacters(font, stem_chars, glyphs, count)) {
CTFontGetBoundingRectsForGlyphs(font, kCTFontHorizontalOrientation,
glyphs, boundingRects, count);
for (size_t i = 0; i < count; i++) {
int16_t width = boundingRects[i].size.width;
if (width > 0 && width < min_width) {
min_width = width;
fStemV = min_width;
}
}
}
pFontDesc->SetAtInteger("StemV", fStemV);
AddIndirectObject(pFontDesc);
pFontDict->SetAtReference("FontDescriptor", this, pFontDesc);
CFRelease(traits);
CFRelease(languages);
return LoadFont(pBaseDict);
}
static bool font_renderer_create_atlas(CTFontRef face, ct_font_renderer_t *handle)
{
int max_width, max_height;
unsigned i;
size_t bytesPerRow;
CGGlyph glyphs[CT_ATLAS_SIZE];
CGRect bounds[CT_ATLAS_SIZE];
CGSize advances[CT_ATLAS_SIZE];
float ascent, descent;
CGContextRef offscreen;
CFDictionaryRef attr;
CFTypeRef values[1];
CFStringRef keys[1];
void *bitmapData = NULL;
bool ret = true;
size_t bitsPerComponent = 8;
UniChar characters[CT_ATLAS_SIZE] = {0};
values[0] = face;
keys[0] = kCTFontAttributeName;
for (i = 0; i < CT_ATLAS_SIZE; i++)
characters[i] = (UniChar)i;
CTFontGetGlyphsForCharacters(face, characters, glyphs, CT_ATLAS_SIZE);
CTFontGetBoundingRectsForGlyphs(face,
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
kCTFontOrientationDefault,
#else
kCTFontDefaultOrientation,
#endif
glyphs, bounds, CT_ATLAS_SIZE);
CTFontGetAdvancesForGlyphs(face,
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
kCTFontOrientationDefault,
#else
kCTFontDefaultOrientation,
#endif
glyphs, advances, CT_ATLAS_SIZE);
ascent = CTFontGetAscent(face);
descent = CTFontGetDescent(face);
max_width = 0;
max_height = 0;
for (i = 0; i < CT_ATLAS_SIZE; i++)
{
int origin_x, origin_y;
struct font_glyph *glyph = &handle->glyphs[i];
if (!glyph)
continue;
origin_x = ceil(bounds[i].origin.x);
origin_y = ceil(bounds[i].origin.y);
glyph->draw_offset_x = 0;
glyph->draw_offset_y = -ascent;
glyph->width = ceil(bounds[i].size.width);
glyph->height = ceil(bounds[i].size.height);
glyph->advance_x = ceil(advances[i].width);
glyph->advance_y = ceil(advances[i].height);
max_width = MAX(max_width, (origin_x + glyph->width));
max_height = MAX(max_height, (origin_y + glyph->height));
}
max_height = MAX(max_height, ceil(ascent+descent));
handle->atlas.width = max_width * CT_ATLAS_COLS;
handle->atlas.height = max_height * CT_ATLAS_ROWS;
handle->atlas.buffer = (uint8_t*)
calloc(handle->atlas.width * handle->atlas.height, 1);
if (!handle->atlas.buffer)
{
ret = false;
goto end;
}
bytesPerRow = max_width;
bitmapData = calloc(max_height, bytesPerRow);
offscreen = CGBitmapContextCreate(bitmapData, max_width, max_height,
bitsPerComponent, bytesPerRow, NULL, kCGImageAlphaOnly);
CGContextSetTextMatrix(offscreen, CGAffineTransformIdentity);
attr = CFDictionaryCreate(NULL, (const void **)&keys, (const void **)&values,
sizeof(keys) / sizeof(keys[0]), &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
for (i = 0; i < CT_ATLAS_SIZE; i++)
{
char glyph_cstr[2];
const uint8_t *src;
uint8_t *dst;
unsigned offset_x, offset_y, r, c;
CFStringRef glyph_cfstr;
CFAttributedStringRef attrString;
CTLineRef line;
struct font_glyph *glyph = &handle->glyphs[i];
if (!glyph)
continue;
glyph->width = max_width;
glyph->height = max_height;
offset_x = (i % CT_ATLAS_COLS) * max_width;
offset_y = (i / CT_ATLAS_COLS) * max_height;
glyph->atlas_offset_x = offset_x;
glyph->atlas_offset_y = offset_y;
glyph_cstr[0] = i;
glyph_cstr[1] = 0;
glyph_cfstr = CFStringCreateWithCString(
NULL, glyph_cstr, kCFStringEncodingASCII );
attrString =
CFAttributedStringCreate(NULL, glyph_cfstr, attr);
CFRelease(glyph_cfstr);
glyph_cfstr = NULL;
line = CTLineCreateWithAttributedString(attrString);
CFRelease(attrString);
attrString = NULL;
memset( bitmapData, 0, max_height * bytesPerRow );
CGContextSetTextPosition(offscreen, 0, descent);
CTLineDraw(line, offscreen);
CGContextFlush( offscreen );
CFRelease( line );
line = NULL;
dst = (uint8_t*)handle->atlas.buffer;
src = (const uint8_t*)bitmapData;
for (r = 0; r < max_height; r++ )
{
for (c = 0; c < max_width; c++)
{
unsigned src_idx = r * bytesPerRow + c;
unsigned dest_idx =
(r + offset_y) * (CT_ATLAS_COLS * max_width) + (c + offset_x);
uint8_t v = src[src_idx];
dst[dest_idx] = v;
}
}
}
CFRelease(attr);
CGContextRelease(offscreen);
attr = NULL;
offscreen = NULL;
free(bitmapData);
end:
return ret;
}
bool SimpleFontData::fillGlyphPage(GlyphPage* pageToFill, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength) const
{
bool haveGlyphs = false;
Vector<CGGlyph, 512> glyphs(bufferLength);
if (!shouldUseCoreText(buffer, bufferLength, this)) {
CGFontGetGlyphsForUnichars(platformData().cgFont(), buffer, glyphs.data(), bufferLength);
for (unsigned i = 0; i < length; ++i) {
if (glyphs[i]) {
pageToFill->setGlyphDataForIndex(offset + i, glyphs[i], this);
haveGlyphs = true;
}
}
} else if (!platformData().isCompositeFontReference() && platformData().widthVariant() != RegularWidth
&& CTFontGetGlyphsForCharacters(platformData().ctFont(), buffer, glyphs.data(), bufferLength)) {
// When buffer consists of surrogate pairs, CTFontGetGlyphsForCharacters
// places the glyphs at indices corresponding to the first character of each pair.
unsigned glyphStep = bufferLength / length;
for (unsigned i = 0; i < length; ++i) {
if (glyphs[i * glyphStep]) {
pageToFill->setGlyphDataForIndex(offset + i, glyphs[i * glyphStep], this);
haveGlyphs = true;
}
}
} else {
// We ask CoreText for possible vertical variant glyphs
RetainPtr<CFStringRef> string(AdoptCF, CFStringCreateWithCharactersNoCopy(kCFAllocatorDefault, buffer, bufferLength, kCFAllocatorNull));
RetainPtr<CFAttributedStringRef> attributedString(AdoptCF, CFAttributedStringCreate(kCFAllocatorDefault, string.get(), getCFStringAttributes(0, hasVerticalGlyphs() ? Vertical : Horizontal)));
RetainPtr<CTLineRef> line(AdoptCF, CTLineCreateWithAttributedString(attributedString.get()));
CFArrayRef runArray = CTLineGetGlyphRuns(line.get());
CFIndex runCount = CFArrayGetCount(runArray);
Vector<CGGlyph, 512> glyphVector;
Vector<CFIndex, 512> indexVector;
bool done = false;
// For the CGFont comparison in the loop, use the CGFont that Core Text assigns to the CTFont. This may
// be non-CFEqual to platformData().cgFont().
RetainPtr<CGFontRef> cgFont(AdoptCF, CTFontCopyGraphicsFont(platformData().ctFont(), 0));
for (CFIndex r = 0; r < runCount && !done ; ++r) {
// CTLine could map characters over multiple fonts using its own font fallback list.
// We need to pick runs that use the exact font we need, i.e., platformData().ctFont().
CTRunRef ctRun = static_cast<CTRunRef>(CFArrayGetValueAtIndex(runArray, r));
ASSERT(CFGetTypeID(ctRun) == CTRunGetTypeID());
CFDictionaryRef attributes = CTRunGetAttributes(ctRun);
CTFontRef runFont = static_cast<CTFontRef>(CFDictionaryGetValue(attributes, kCTFontAttributeName));
RetainPtr<CGFontRef> runCGFont(AdoptCF, CTFontCopyGraphicsFont(runFont, 0));
// Use CGFont here as CFEqual for CTFont counts all attributes for font.
bool gotBaseFont = CFEqual(cgFont.get(), runCGFont.get());
if (gotBaseFont || platformData().isCompositeFontReference()) {
// This run uses the font we want. Extract glyphs.
CFIndex glyphCount = CTRunGetGlyphCount(ctRun);
const CGGlyph* glyphs = CTRunGetGlyphsPtr(ctRun);
if (!glyphs) {
glyphVector.resize(glyphCount);
CTRunGetGlyphs(ctRun, CFRangeMake(0, 0), glyphVector.data());
glyphs = glyphVector.data();
}
const CFIndex* stringIndices = CTRunGetStringIndicesPtr(ctRun);
if (!stringIndices) {
indexVector.resize(glyphCount);
CTRunGetStringIndices(ctRun, CFRangeMake(0, 0), indexVector.data());
stringIndices = indexVector.data();
}
if (gotBaseFont) {
for (CFIndex i = 0; i < glyphCount; ++i) {
if (stringIndices[i] >= static_cast<CFIndex>(length)) {
done = true;
break;
}
if (glyphs[i]) {
pageToFill->setGlyphDataForIndex(offset + stringIndices[i], glyphs[i], this);
haveGlyphs = true;
}
}
} else {
const SimpleFontData* runSimple = getCompositeFontReferenceFontData((NSFont *)runFont);
if (runSimple) {
for (CFIndex i = 0; i < glyphCount; ++i) {
if (stringIndices[i] >= static_cast<CFIndex>(length)) {
done = true;
break;
}
if (glyphs[i]) {
pageToFill->setGlyphDataForIndex(offset + stringIndices[i], glyphs[i], runSimple);
haveGlyphs = true;
}
}
}
}
}
}
}
return haveGlyphs;
}
