mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-15 06:15:43 +00:00
404ef7af3e
Bug 1134923 removed the use of those functions in gecko, and left some for the XPCOM standalone glue. The XPCOM standalone glue was severely stripped down in bug 1306327, with the effect of removing the implementation for those functions. The remains in nsXPCOM.h are: XPCOM_API(void*) NS_Alloc(size_t aSize); XPCOM_API(void*) NS_Realloc(void* aPtr, size_t aSize); XPCOM_API(void) NS_Free(void* aPtr); With no implementation left, the first arm is never actually used, and the second arm means every remaining use of those functions in the tree is a macro expansion to one of moz_xmalloc, moz_xrealloc or free. --HG-- extra : rebase_source : fd1669abc5a25d8edbd5c3a8522e22a5c3f558e2
355 lines
12 KiB
C++
355 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef GFXFCPLATFORMFONTLIST_H_
|
|
#define GFXFCPLATFORMFONTLIST_H_
|
|
|
|
#include "gfxFont.h"
|
|
#include "gfxFontEntry.h"
|
|
#include "gfxFT2FontBase.h"
|
|
#include "gfxPlatformFontList.h"
|
|
#include "mozilla/mozalloc.h"
|
|
#include "nsAutoRef.h"
|
|
#include "nsClassHashtable.h"
|
|
|
|
#include <fontconfig/fontconfig.h>
|
|
#include "ft2build.h"
|
|
#include FT_FREETYPE_H
|
|
#include FT_TRUETYPE_TABLES_H
|
|
#include <cairo.h>
|
|
#include <cairo-ft.h>
|
|
|
|
template <>
|
|
class nsAutoRefTraits<FcPattern> : public nsPointerRefTraits<FcPattern>
|
|
{
|
|
public:
|
|
static void Release(FcPattern *ptr) { FcPatternDestroy(ptr); }
|
|
static void AddRef(FcPattern *ptr) { FcPatternReference(ptr); }
|
|
};
|
|
|
|
template <>
|
|
class nsAutoRefTraits<FcConfig> : public nsPointerRefTraits<FcConfig>
|
|
{
|
|
public:
|
|
static void Release(FcConfig *ptr) { FcConfigDestroy(ptr); }
|
|
static void AddRef(FcConfig *ptr) { FcConfigReference(ptr); }
|
|
};
|
|
|
|
// Helper classes used for clearning out user font data when cairo font
|
|
// face is destroyed. Since multiple faces may use the same data, be
|
|
// careful to assure that the data is only cleared out when all uses
|
|
// expire. The font entry object contains a refptr to FTUserFontData and
|
|
// each cairo font created from that font entry contains a
|
|
// FTUserFontDataRef with a refptr to that same FTUserFontData object.
|
|
|
|
class FTUserFontData {
|
|
public:
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FTUserFontData)
|
|
|
|
explicit FTUserFontData(FT_Face aFace, const uint8_t* aData)
|
|
: mFace(aFace), mFontData(aData)
|
|
{
|
|
}
|
|
|
|
const uint8_t *FontData() const { return mFontData; }
|
|
|
|
private:
|
|
~FTUserFontData()
|
|
{
|
|
mozilla::gfx::Factory::ReleaseFTFace(mFace);
|
|
if (mFontData) {
|
|
free((void*)mFontData);
|
|
}
|
|
}
|
|
|
|
FT_Face mFace;
|
|
const uint8_t *mFontData;
|
|
};
|
|
|
|
// The names for the font entry and font classes should really
|
|
// the common 'Fc' abbreviation but the gfxPangoFontGroup code already
|
|
// defines versions of these, so use the verbose name for now.
|
|
|
|
class gfxFontconfigFontEntry : public gfxFontEntry {
|
|
public:
|
|
// used for system fonts with explicit patterns
|
|
explicit gfxFontconfigFontEntry(const nsAString& aFaceName,
|
|
FcPattern* aFontPattern,
|
|
bool aIgnoreFcCharmap);
|
|
|
|
// used for data fonts where the fontentry takes ownership
|
|
// of the font data and the FT_Face
|
|
explicit gfxFontconfigFontEntry(const nsAString& aFaceName,
|
|
uint16_t aWeight,
|
|
int16_t aStretch,
|
|
uint8_t aStyle,
|
|
const uint8_t *aData,
|
|
FT_Face aFace);
|
|
|
|
// used for @font-face local system fonts with explicit patterns
|
|
explicit gfxFontconfigFontEntry(const nsAString& aFaceName,
|
|
FcPattern* aFontPattern,
|
|
uint16_t aWeight,
|
|
int16_t aStretch,
|
|
uint8_t aStyle);
|
|
|
|
gfxFontEntry* Clone() const override;
|
|
|
|
FcPattern* GetPattern() { return mFontPattern; }
|
|
|
|
nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr) override;
|
|
bool TestCharacterMap(uint32_t aCh) override;
|
|
|
|
hb_blob_t* GetFontTable(uint32_t aTableTag) override;
|
|
|
|
void ForgetHBFace() override;
|
|
void ReleaseGrFace(gr_face* aFace) override;
|
|
|
|
double GetAspect();
|
|
|
|
protected:
|
|
virtual ~gfxFontconfigFontEntry();
|
|
|
|
gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle,
|
|
bool aNeedsBold) override;
|
|
|
|
// helper method for creating cairo font from pattern
|
|
cairo_scaled_font_t*
|
|
CreateScaledFont(FcPattern* aRenderPattern,
|
|
gfxFloat aAdjustedSize,
|
|
const gfxFontStyle *aStyle,
|
|
bool aNeedsBold);
|
|
|
|
// override to pull data from FTFace
|
|
virtual nsresult
|
|
CopyFontTable(uint32_t aTableTag,
|
|
nsTArray<uint8_t>& aBuffer) override;
|
|
|
|
// if HB or GR faces are gone, close down the FT_Face
|
|
void MaybeReleaseFTFace();
|
|
|
|
// pattern for a single face of a family
|
|
nsCountedRef<FcPattern> mFontPattern;
|
|
|
|
// user font data, when needed
|
|
RefPtr<FTUserFontData> mUserFontData;
|
|
|
|
// FTFace - initialized when needed
|
|
FT_Face mFTFace;
|
|
bool mFTFaceInitialized;
|
|
|
|
// Whether TestCharacterMap should check the actual cmap rather than asking
|
|
// fontconfig about character coverage.
|
|
// We do this for app-bundled (rather than system) fonts, as they may
|
|
// include color glyphs that fontconfig would overlook, and for fonts
|
|
// loaded via @font-face.
|
|
bool mIgnoreFcCharmap;
|
|
|
|
double mAspect;
|
|
|
|
// data font
|
|
const uint8_t* mFontData;
|
|
|
|
class UnscaledFontCache
|
|
{
|
|
public:
|
|
already_AddRefed<mozilla::gfx::UnscaledFontFontconfig>
|
|
Lookup(const char* aFile, uint32_t aIndex);
|
|
|
|
void Add(const RefPtr<mozilla::gfx::UnscaledFontFontconfig>& aUnscaledFont) {
|
|
mUnscaledFonts[kNumEntries-1] = aUnscaledFont;
|
|
MoveToFront(kNumEntries-1);
|
|
}
|
|
|
|
private:
|
|
void MoveToFront(size_t aIndex);
|
|
|
|
static const size_t kNumEntries = 3;
|
|
mozilla::WeakPtr<mozilla::gfx::UnscaledFont> mUnscaledFonts[kNumEntries];
|
|
};
|
|
|
|
UnscaledFontCache mUnscaledFontCache;
|
|
};
|
|
|
|
class gfxFontconfigFontFamily : public gfxFontFamily {
|
|
public:
|
|
explicit gfxFontconfigFontFamily(const nsAString& aName) :
|
|
gfxFontFamily(aName),
|
|
mContainsAppFonts(false),
|
|
mHasNonScalableFaces(false),
|
|
mForceScalable(false)
|
|
{ }
|
|
|
|
void FindStyleVariations(FontInfoData *aFontInfoData = nullptr) override;
|
|
|
|
// Families are constructed initially with just references to patterns.
|
|
// When necessary, these are enumerated within FindStyleVariations.
|
|
void AddFontPattern(FcPattern* aFontPattern);
|
|
|
|
void SetFamilyContainsAppFonts(bool aContainsAppFonts)
|
|
{
|
|
mContainsAppFonts = aContainsAppFonts;
|
|
}
|
|
|
|
void
|
|
FindAllFontsForStyle(const gfxFontStyle& aFontStyle,
|
|
nsTArray<gfxFontEntry*>& aFontEntryList,
|
|
bool& aNeedsSyntheticBold,
|
|
bool aIgnoreSizeTolerance) override;
|
|
|
|
bool FilterForFontList(nsAtom* aLangGroup,
|
|
const nsACString& aGeneric) const final {
|
|
return SupportsLangGroup(aLangGroup);
|
|
}
|
|
|
|
protected:
|
|
virtual ~gfxFontconfigFontFamily();
|
|
|
|
// helper for FilterForFontList
|
|
bool SupportsLangGroup(nsAtom *aLangGroup) const;
|
|
|
|
nsTArray<nsCountedRef<FcPattern> > mFontPatterns;
|
|
|
|
bool mContainsAppFonts;
|
|
bool mHasNonScalableFaces;
|
|
bool mForceScalable;
|
|
};
|
|
|
|
class gfxFontconfigFont : public gfxFT2FontBase {
|
|
public:
|
|
gfxFontconfigFont(const RefPtr<mozilla::gfx::UnscaledFontFontconfig> &aUnscaledFont,
|
|
cairo_scaled_font_t *aScaledFont,
|
|
FcPattern *aPattern,
|
|
gfxFloat aAdjustedSize,
|
|
gfxFontEntry *aFontEntry,
|
|
const gfxFontStyle *aFontStyle,
|
|
bool aNeedsBold);
|
|
|
|
virtual FontType GetType() const override { return FONT_TYPE_FONTCONFIG; }
|
|
virtual FcPattern *GetPattern() const { return mPattern; }
|
|
|
|
virtual already_AddRefed<mozilla::gfx::ScaledFont>
|
|
GetScaledFont(DrawTarget *aTarget) override;
|
|
|
|
private:
|
|
virtual ~gfxFontconfigFont();
|
|
|
|
nsCountedRef<FcPattern> mPattern;
|
|
};
|
|
|
|
class gfxFcPlatformFontList : public gfxPlatformFontList {
|
|
public:
|
|
gfxFcPlatformFontList();
|
|
|
|
static gfxFcPlatformFontList* PlatformFontList() {
|
|
return static_cast<gfxFcPlatformFontList*>(sPlatformFontList);
|
|
}
|
|
|
|
// initialize font lists
|
|
virtual nsresult InitFontListForPlatform() override;
|
|
|
|
void GetFontList(nsAtom *aLangGroup,
|
|
const nsACString& aGenericFamily,
|
|
nsTArray<nsString>& aListOfFonts) override;
|
|
|
|
|
|
gfxFontEntry*
|
|
LookupLocalFont(const nsAString& aFontName, uint16_t aWeight,
|
|
int16_t aStretch, uint8_t aStyle) override;
|
|
|
|
gfxFontEntry*
|
|
MakePlatformFont(const nsAString& aFontName, uint16_t aWeight,
|
|
int16_t aStretch,
|
|
uint8_t aStyle,
|
|
const uint8_t* aFontData,
|
|
uint32_t aLength) override;
|
|
|
|
bool FindAndAddFamilies(const nsAString& aFamily,
|
|
nsTArray<gfxFontFamily*>* aOutput,
|
|
FindFamiliesFlags aFlags,
|
|
gfxFontStyle* aStyle = nullptr,
|
|
gfxFloat aDevToCssSize = 1.0) override;
|
|
|
|
bool GetStandardFamilyName(const nsAString& aFontName,
|
|
nsAString& aFamilyName) override;
|
|
|
|
FcConfig* GetLastConfig() const { return mLastConfig; }
|
|
|
|
// override to use fontconfig lookup for generics
|
|
void AddGenericFonts(mozilla::FontFamilyType aGenericType,
|
|
nsAtom* aLanguage,
|
|
nsTArray<gfxFontFamily*>& aFamilyList) override;
|
|
|
|
void ClearLangGroupPrefFonts() override;
|
|
|
|
// clear out cached generic-lang ==> family-list mappings
|
|
void ClearGenericMappings() {
|
|
mGenericMappings.Clear();
|
|
}
|
|
|
|
static FT_Library GetFTLibrary();
|
|
|
|
protected:
|
|
virtual ~gfxFcPlatformFontList();
|
|
|
|
// Add all the font families found in a font set.
|
|
// aAppFonts indicates whether this is the system or application fontset.
|
|
void AddFontSetFamilies(FcFontSet* aFontSet, bool aAppFonts);
|
|
|
|
// figure out which families fontconfig maps a generic to
|
|
// (aGeneric assumed already lowercase)
|
|
PrefFontList* FindGenericFamilies(const nsAString& aGeneric,
|
|
nsAtom* aLanguage);
|
|
|
|
// are all pref font settings set to use fontconfig generics?
|
|
bool PrefFontListsUseOnlyGenerics();
|
|
|
|
static void CheckFontUpdates(nsITimer *aTimer, void *aThis);
|
|
|
|
virtual gfxFontFamily*
|
|
GetDefaultFontForPlatform(const gfxFontStyle* aStyle) override;
|
|
|
|
gfxFontFamily* CreateFontFamily(const nsAString& aName) const override;
|
|
|
|
#ifdef MOZ_BUNDLED_FONTS
|
|
void ActivateBundledFonts();
|
|
nsCString mBundledFontsPath;
|
|
bool mBundledFontsInitialized;
|
|
#endif
|
|
|
|
// to avoid enumerating all fonts, maintain a mapping of local font
|
|
// names to family
|
|
nsBaseHashtable<nsStringHashKey,
|
|
nsCountedRef<FcPattern>,
|
|
FcPattern*> mLocalNames;
|
|
|
|
// caching generic/lang ==> font family list
|
|
nsClassHashtable<nsCStringHashKey,
|
|
PrefFontList> mGenericMappings;
|
|
|
|
// Caching family lookups as found by FindAndAddFamilies after resolving
|
|
// substitutions. The gfxFontFamily objects cached here are owned by the
|
|
// gfxFcPlatformFontList via its mFamilies table; note that if the main
|
|
// font list is rebuilt (e.g. due to a fontconfig configuration change),
|
|
// these pointers will be invalidated. InitFontList() flushes the cache
|
|
// in this case.
|
|
nsDataHashtable<nsCStringHashKey,
|
|
nsTArray<gfxFontFamily*>> mFcSubstituteCache;
|
|
|
|
nsCOMPtr<nsITimer> mCheckFontUpdatesTimer;
|
|
nsCountedRef<FcConfig> mLastConfig;
|
|
|
|
// By default, font prefs under Linux are set to simply lookup
|
|
// via fontconfig the appropriate font for serif/sans-serif/monospace.
|
|
// Rather than check each time a font pref is used, check them all at startup
|
|
// and set a boolean to flag the case that non-default user font prefs exist
|
|
// Note: langGroup == x-math is handled separately
|
|
bool mAlwaysUseFontconfigGenerics;
|
|
|
|
static FT_Library sCairoFTLibrary;
|
|
};
|
|
|
|
#endif /* GFXPLATFORMFONTLIST_H_ */
|