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Bug 1031206 - Part 1: Split out creation and addition of font faces in gfxUserFontSet. r=jdaggett

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This commit is contained in:
Cameron McCormack 2014-07-23 15:05:50 +10:00
parent 7ca2de4659
commit 3ecb723a73
3 changed files with 120 additions and 49 deletions
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115
gfx/thebes/gfxUserFontSet.cpp
View File

@ -582,22 +582,18 @@ gfxUserFontSet::~gfxUserFontSet()
}
}
gfxFontEntry*
gfxUserFontSet::AddFontFace(const nsAString& aFamilyName,
already_AddRefed<gfxProxyFontEntry>
gfxUserFontSet::FindOrCreateFontFace(
const nsAString& aFamilyName,
const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet *aUnicodeRanges)
gfxSparseBitSet* aUnicodeRanges)
{
MOZ_ASSERT(aWeight != 0,
"aWeight must not be 0; use NS_FONT_WEIGHT_NORMAL instead");
// stretch, italic/oblique ==> zero implies normal
gfxMixedFontFamily* family = GetFamily(aFamilyName);
nsRefPtr<gfxProxyFontEntry> entry;
// If there's already a proxy in the family whose descriptors all match,
// we can just move it to the end of the list instead of adding a new
@ -605,13 +601,75 @@ gfxUserFontSet::AddFontFace(const nsAString& aFamilyName,
// Note that we can't do this for "real" (non-proxy) entries, even if the
// style descriptors match, as they might have had a different source list,
// but we no longer have the old source list available to check.
nsTArray<nsRefPtr<gfxFontEntry> >& fontList = family->GetFontList();
for (uint32_t i = 0, count = fontList.Length(); i < count; i++) {
gfxMixedFontFamily* family = LookupFamily(aFamilyName);
if (family) {
entry = FindExistingProxyEntry(family, aFontFaceSrcList, aWeight,
aStretch, aItalicStyle, aFeatureSettings,
aLanguageOverride, aUnicodeRanges);
}
if (!entry) {
entry = CreateFontFace(aFontFaceSrcList, aWeight, aStretch,
aItalicStyle, aFeatureSettings, aLanguageOverride,
aUnicodeRanges);
entry->mFamilyName = aFamilyName;
#ifdef PR_LOGGING
if (LOG_ENABLED()) {
LOG(("userfonts (%p) created \"%s\" (%p) with style: %s weight: %d "
"stretch: %d",
this, NS_ConvertUTF16toUTF8(aFamilyName).get(), entry.get(),
(aItalicStyle & NS_FONT_STYLE_ITALIC ? "italic" :
(aItalicStyle & NS_FONT_STYLE_OBLIQUE ? "oblique" : "normal")),
aWeight, aStretch));
}
#endif
}
return entry.forget();
}
already_AddRefed<gfxProxyFontEntry>
gfxUserFontSet::CreateFontFace(const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet* aUnicodeRanges)
{
MOZ_ASSERT(aWeight != 0,
"aWeight must not be 0; use NS_FONT_WEIGHT_NORMAL instead");
nsRefPtr<gfxProxyFontEntry> proxyEntry =
new gfxProxyFontEntry(this, aFontFaceSrcList, aWeight,
aStretch, aItalicStyle, aFeatureSettings,
aLanguageOverride, aUnicodeRanges);
return proxyEntry.forget();
}
gfxProxyFontEntry*
gfxUserFontSet::FindExistingProxyEntry(
gfxMixedFontFamily* aFamily,
const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet* aUnicodeRanges)
{
MOZ_ASSERT(aWeight != 0,
"aWeight must not be 0; use NS_FONT_WEIGHT_NORMAL instead");
nsTArray<nsRefPtr<gfxFontEntry>>& fontList = aFamily->GetFontList();
for (size_t i = 0, count = fontList.Length(); i < count; i++) {
if (!fontList[i]->mIsProxy) {
continue;
}
gfxProxyFontEntry *existingProxyEntry =
gfxProxyFontEntry* existingProxyEntry =
static_cast<gfxProxyFontEntry*>(fontList[i].get());
if (!existingProxyEntry->Matches(aFontFaceSrcList,
aWeight, aStretch, aItalicStyle,
@ -620,34 +678,10 @@ gfxUserFontSet::AddFontFace(const nsAString& aFamilyName,
continue;
}
// We've found an entry that matches the new face exactly, so just add
// it to the end of the list. gfxMixedFontFamily::AddFontEntry() will
// automatically remove any earlier occurrence of the same proxy.
family->AddFontEntry(existingProxyEntry);
return existingProxyEntry;
}
// construct a new face and add it into the family
gfxProxyFontEntry *proxyEntry =
new gfxProxyFontEntry(this, aFontFaceSrcList,
aWeight, aStretch,
aItalicStyle,
aFeatureSettings,
aLanguageOverride,
aUnicodeRanges);
proxyEntry->mFamilyName = aFamilyName;
family->AddFontEntry(proxyEntry);
#ifdef PR_LOGGING
if (LOG_ENABLED()) {
LOG(("userfonts (%p) added (%s) with style: %s weight: %d stretch: %d",
this, NS_ConvertUTF16toUTF8(aFamilyName).get(),
(aItalicStyle & NS_FONT_STYLE_ITALIC ? "italic" :
(aItalicStyle & NS_FONT_STYLE_OBLIQUE ? "oblique" : "normal")),
aWeight, aStretch));
}
#endif
return proxyEntry;
return nullptr;
}
void
@ -656,6 +690,13 @@ gfxUserFontSet::AddFontFace(const nsAString& aFamilyName,
{
gfxMixedFontFamily* family = GetFamily(aFamilyName);
family->AddFontEntry(aFontEntry);
#ifdef PR_LOGGING
if (LOG_ENABLED()) {
LOG(("userfonts (%p) added \"%s\" (%p)",
this, NS_ConvertUTF16toUTF8(aFamilyName).get(), aFontEntry));
}
#endif
}
gfxFontEntry*

29
gfx/thebes/gfxUserFontSet.h
View File

@ -167,20 +167,32 @@ public:
};
// add in a font face
// creates a font face without adding it to a particular family
// weight - [100, 900] (multiples of 100)
// stretch = [NS_FONT_STRETCH_ULTRA_CONDENSED, NS_FONT_STRETCH_ULTRA_EXPANDED]
// italic style = constants in gfxFontConstants.h, e.g. NS_FONT_STYLE_NORMAL
// language override = result of calling gfxFontStyle::ParseFontLanguageOverride
// TODO: support for unicode ranges not yet implemented
gfxFontEntry *AddFontFace(const nsAString& aFamilyName,
already_AddRefed<gfxProxyFontEntry> CreateFontFace(
const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet *aUnicodeRanges = nullptr);
gfxSparseBitSet* aUnicodeRanges);
// creates a font face for the specified family, or returns an existing
// matching entry on the family if there is one
already_AddRefed<gfxProxyFontEntry> FindOrCreateFontFace(
const nsAString& aFamilyName,
const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet* aUnicodeRanges);
// add in a font face for which we have the gfxFontEntry already
void AddFontFace(const nsAString& aFamilyName, gfxFontEntry* aFontEntry);
@ -432,6 +444,17 @@ protected:
// helper method for performing the actual userfont set rebuild
virtual void DoRebuildUserFontSet() = 0;
// helper method for FindOrCreateFontFace
gfxProxyFontEntry* FindExistingProxyEntry(
gfxMixedFontFamily* aFamily,
const nsTArray<gfxFontFaceSrc>& aFontFaceSrcList,
uint32_t aWeight,
int32_t aStretch,
uint32_t aItalicStyle,
const nsTArray<gfxFontFeature>& aFeatureSettings,
uint32_t aLanguageOverride,
gfxSparseBitSet* aUnicodeRanges);
// creates a new gfxMixedFontFamily in mFontFamilies, or returns an existing
// family if there is one
gfxMixedFontFamily* GetFamily(const nsAString& aFamilyName);

11
layout/style/nsFontFaceLoader.cpp
View File

@ -722,10 +722,17 @@ nsUserFontSet::InsertRule(nsCSSFontFaceRule* aRule, uint8_t aSheetType,
FontFaceRuleRecord ruleRec;
ruleRec.mContainer.mRule = aRule;
ruleRec.mContainer.mSheetType = aSheetType;
ruleRec.mFontEntry = AddFontFace(fontfamily, srcArray,
ruleRec.mFontEntry = FindOrCreateFontFace(fontfamily, srcArray,
weight, stretch, italicStyle,
featureSettings, languageOverride);
featureSettings, languageOverride,
nullptr /* aUnicodeRanges */);
if (ruleRec.mFontEntry) {
// Add the entry to the end of the list. If an existing proxy entry was
// returned by FindOrCreateFontFace that was already stored on the
// family, gfxMixedFontFamily::AddFontEntry(), which AddFontFace calls,
// will automatically remove the earlier occurrence of the same proxy.
AddFontFace(fontfamily, ruleRec.mFontEntry);
mRules.AppendElement(ruleRec);
}
// this was a new rule and fontEntry, so note that the set was modified