SkTypeface* onLegacyCreateTypeface(const char requestedFamilyName[],
SkFontStyle requestedStyle) const override
{
SkAutoMutexAcquire ama(fMutex);
// Check if this request is already in the request cache.
using Request = SkFontRequestCache::Request;
SkAutoTDelete<Request> request(Request::Create(requestedFamilyName, requestedStyle));
SkTypeface* face = fCache.findAndRef(request);
if (face) {
return face;
}
SkFontConfigInterface::FontIdentity identity;
SkString outFamilyName;
SkFontStyle outStyle;
if (!fFCI->matchFamilyName(requestedFamilyName, requestedStyle,
&identity, &outFamilyName, &outStyle))
{
return nullptr;
}
// Check if a typeface with this FontIdentity is already in the FontIdentity cache.
face = fTFCache.findByProcAndRef(find_by_FontIdentity, &identity);
if (!face) {
face = SkTypeface_FCI::Create(fFCI, identity, outFamilyName, outStyle);
// Add this FontIdentity to the FontIdentity cache.
fTFCache.add(face);
}
// Add this request to the request cache.
fCache.add(face, request.release());
return face;
}
SkTypeface* SkFontMgr_DirectWrite::createTypefaceFromDWriteFont(
IDWriteFontFace* fontFace,
IDWriteFont* font,
IDWriteFontFamily* fontFamily) const {
SkAutoMutexAcquire ama(fTFCacheMutex);
ProtoDWriteTypeface spec = { fontFace, font, fontFamily };
SkTypeface* face = fTFCache.findByProcAndRef(FindByDWriteFont, &spec);
if (nullptr == face) {
face = DWriteFontTypeface::Create(fFactory.get(), fontFace, font, fontFamily);
if (face) {
fTFCache.add(face);
}
}
return face;
}
DEF_TEST(TypefaceCache, reporter) {
sk_sp<SkTypeface> t1(SkEmptyTypeface::Create());
{
SkTypefaceCache cache;
REPORTER_ASSERT(reporter, count(reporter, cache) == 0);
{
sk_sp<SkTypeface> t0(SkEmptyTypeface::Create());
cache.add(t0.get());
REPORTER_ASSERT(reporter, count(reporter, cache) == 1);
cache.add(t1.get());
REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
cache.purgeAll();
REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
}
REPORTER_ASSERT(reporter, count(reporter, cache) == 2);
cache.purgeAll();
REPORTER_ASSERT(reporter, count(reporter, cache) == 1);
}
REPORTER_ASSERT(reporter, t1->unique());
}
static int count(skiatest::Reporter* reporter, const SkTypefaceCache& cache) {
int count = 0;
SkTypeface* none = cache.findByProcAndRef(count_proc, &count);
REPORTER_ASSERT(reporter, none == nullptr);
return count;
}
