FontPlatformData* FontCache::getCachedFontPlatformData(const FontDescription& fontDescription,
const AtomicString& familyName,
bool checkingAlternateName)
{
if (!gFontPlatformDataCache) {
gFontPlatformDataCache = new FontPlatformDataCache;
}
FontPlatformDataCacheKey key(familyName, fontDescription.computedPixelSize(), fontDescription.bold(), fontDescription.italic(),
fontDescription.usePrinterFont());
FontPlatformData* result = 0;
bool foundResult;
FontPlatformDataCache::iterator it = gFontPlatformDataCache->find(key);
if (it == gFontPlatformDataCache->end()) {
result = createFontPlatformData(fontDescription, familyName);
gFontPlatformDataCache->set(key, result);
foundResult = result;
} else {
result = it->second;
foundResult = true;
}
if (!foundResult && !checkingAlternateName) {
// We were unable to find a font. We have a small set of fonts that we alias to other names,
// e.g., Arial/Helvetica, Courier/Courier New, etc. Try looking up the font under the aliased name.
const AtomicString& alternateName = alternateFamilyName(familyName);
if (!alternateName.isEmpty())
result = getCachedFontPlatformData(fontDescription, alternateName, true);
if (result)
gFontPlatformDataCache->set(key, new FontPlatformData(*result)); // Cache the result under the old name.
}
key.m_family = AtomicString();
return result;
}
FontPlatformData* FontCache::getCachedFontPlatformData(const FontDescription& fontDescription,
const AtomicString& passedFamilyName,
bool checkingAlternateName)
{
#if PLATFORM(IOS)
FontLocker fontLocker;
#endif
#if OS(WINDOWS) && ENABLE(OPENTYPE_VERTICAL)
// Leading "@" in the font name enables Windows vertical flow flag for the font.
// Because we do vertical flow by ourselves, we don't want to use the Windows feature.
// IE disregards "@" regardless of the orientatoin, so we follow the behavior.
const AtomicString& familyName = (passedFamilyName.isEmpty() || passedFamilyName[0] != '@') ?
passedFamilyName : AtomicString(passedFamilyName.impl()->substring(1));
#else
const AtomicString& familyName = passedFamilyName;
#endif
static bool initialized;
if (!initialized) {
platformInit();
initialized = true;
}
FontPlatformDataCacheKey key(familyName, fontDescription);
auto addResult = fontPlatformDataCache().add(key, nullptr);
FontPlatformDataCache::iterator it = addResult.iterator;
if (addResult.isNewEntry) {
it->value = createFontPlatformData(fontDescription, familyName);
if (!it->value && !checkingAlternateName) {
// We were unable to find a font. We have a small set of fonts that we alias to other names,
// e.g., Arial/Helvetica, Courier/Courier New, etc. Try looking up the font under the aliased name.
const AtomicString alternateName = alternateFamilyName(familyName);
if (!alternateName.isNull()) {
FontPlatformData* fontPlatformDataForAlternateName = getCachedFontPlatformData(fontDescription, alternateName, true);
// Lookup the key in the hash table again as the previous iterator may have
// been invalidated by the recursive call to getCachedFontPlatformData().
it = fontPlatformDataCache().find(key);
ASSERT(it != fontPlatformDataCache().end());
if (fontPlatformDataForAlternateName)
it->value = std::make_unique<FontPlatformData>(*fontPlatformDataForAlternateName);
}
}
}
return it->value.get();
}
FontPlatformData* FontCache::getCachedFontPlatformData(const FontDescription& fontDescription,
const AtomicString& familyName,
bool checkingAlternateName)
{
NOTIFY_PROCESS_STATUS(EA::WebKit::kVProcessTypeFontLoading, EA::WebKit::kVProcessStatusStarted);
if (!gFontPlatformDataCache) {
gFontPlatformDataCache = new FontPlatformDataCache;
platformInit();
}
FontPlatformDataCacheKey key(familyName, fontDescription.computedPixelSize(), fontDescription.weight(), fontDescription.italic(),
fontDescription.usePrinterFont(), fontDescription.renderingMode());
FontPlatformData* result = 0;
bool foundResult;
FontPlatformDataCache::iterator it = gFontPlatformDataCache->find(key);
if (it == gFontPlatformDataCache->end()) {
result = createFontPlatformData(fontDescription, familyName);
if(result)
gFontPlatformDataCache->set(key, result);
foundResult = result;
} else {
result = it->second;
foundResult = true;
}
if (!foundResult && !checkingAlternateName) {
// We were unable to find a font. We have a small set of fonts that we alias to other names,
// e.g., Arial/Helvetica, Courier/Courier New, etc. Try looking up the font under the aliased name.
const AtomicString* pAlternateName = alternateFamilyName(familyName);
if (!pAlternateName->isEmpty())
result = getCachedFontPlatformData(fontDescription, *pAlternateName, true);
if (result) {
gFontPlatformDataCache->set(key, new FontPlatformData(*result)); // Cache the result under the old name.
}
}
NOTIFY_PROCESS_STATUS(EA::WebKit::kVProcessTypeFontLoading, EA::WebKit::kVProcessStatusEnded);
return result;
}
