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gfxDWriteFontList.cpp
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/* -*- 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/. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/MemoryReporting.h"
#include "gfxDWriteFontList.h"
#include "gfxDWriteFonts.h"
#include "nsUnicharUtils.h"
#include "nsILocaleService.h"
#include "nsServiceManagerUtils.h"
#include "nsCharSeparatedTokenizer.h"
#include "mozilla/Preferences.h"
#include "mozilla/Sprintf.h"
#include "mozilla/Telemetry.h"
#include "nsDirectoryServiceUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsISimpleEnumerator.h"
#include "gfxGDIFontList.h"
#include "nsIWindowsRegKey.h"
#include "harfbuzz/hb.h"
using namespace mozilla;
#define LOG_FONTLIST(args) MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontlist), \
LogLevel::Debug, args)
#define LOG_FONTLIST_ENABLED() MOZ_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_fontlist), \
LogLevel::Debug)
#define LOG_FONTINIT(args) MOZ_LOG(gfxPlatform::GetLog(eGfxLog_fontinit), \
LogLevel::Debug, args)
#define LOG_FONTINIT_ENABLED() MOZ_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_fontinit), \
LogLevel::Debug)
#define LOG_CMAPDATA_ENABLED() MOZ_LOG_TEST( \
gfxPlatform::GetLog(eGfxLog_cmapdata), \
LogLevel::Debug)
static __inline void
BuildKeyNameFromFontName(nsAString &aName)
{
if (aName.Length() >= LF_FACESIZE)
aName.Truncate(LF_FACESIZE - 1);
ToLowerCase(aName);
}
////////////////////////////////////////////////////////////////////////////////
// gfxDWriteFontFamily
gfxDWriteFontFamily::~gfxDWriteFontFamily()
{
}
static HRESULT
GetDirectWriteFontName(IDWriteFont *aFont, nsAString& aFontName)
{
HRESULT hr;
RefPtr<IDWriteLocalizedStrings> names;
hr = aFont->GetFaceNames(getter_AddRefs(names));
if (FAILED(hr)) {
return hr;
}
BOOL exists;
AutoTArray<wchar_t,32> faceName;
UINT32 englishIdx = 0;
hr = names->FindLocaleName(L"en-us", &englishIdx, &exists);
if (FAILED(hr)) {
return hr;
}
if (!exists) {
// No english found, use whatever is first in the list.
englishIdx = 0;
}
UINT32 length;
hr = names->GetStringLength(englishIdx, &length);
if (FAILED(hr)) {
return hr;
}
faceName.SetLength(length + 1);
hr = names->GetString(englishIdx, faceName.Elements(), length + 1);
if (FAILED(hr)) {
return hr;
}
aFontName.Assign(faceName.Elements());
return S_OK;
}
#define FULLNAME_ID DWRITE_INFORMATIONAL_STRING_FULL_NAME
#define PSNAME_ID DWRITE_INFORMATIONAL_STRING_POSTSCRIPT_NAME
// for use in reading postscript or fullname
static HRESULT
GetDirectWriteFaceName(IDWriteFont *aFont,
DWRITE_INFORMATIONAL_STRING_ID aWhichName,
nsAString& aFontName)
{
HRESULT hr;
BOOL exists;
RefPtr<IDWriteLocalizedStrings> infostrings;
hr = aFont->GetInformationalStrings(aWhichName, getter_AddRefs(infostrings), &exists);
if (FAILED(hr) || !exists) {
return E_FAIL;
}
AutoTArray<wchar_t,32> faceName;
UINT32 englishIdx = 0;
hr = infostrings->FindLocaleName(L"en-us", &englishIdx, &exists);
if (FAILED(hr)) {
return hr;
}
if (!exists) {
// No english found, use whatever is first in the list.
englishIdx = 0;
}
UINT32 length;
hr = infostrings->GetStringLength(englishIdx, &length);
if (FAILED(hr)) {
return hr;
}
faceName.SetLength(length + 1);
hr = infostrings->GetString(englishIdx, faceName.Elements(), length + 1);
if (FAILED(hr)) {
return hr;
}
aFontName.Assign(faceName.Elements());
return S_OK;
}
void
gfxDWriteFontFamily::FindStyleVariations(FontInfoData *aFontInfoData)
{
HRESULT hr;
if (mHasStyles) {
return;
}
mHasStyles = true;
gfxPlatformFontList *fp = gfxPlatformFontList::PlatformFontList();
bool skipFaceNames = mFaceNamesInitialized ||
!fp->NeedFullnamePostscriptNames();
bool fontInfoShouldHaveFaceNames = !mFaceNamesInitialized &&
fp->NeedFullnamePostscriptNames() &&
aFontInfoData;
for (UINT32 i = 0; i < mDWFamily->GetFontCount(); i++) {
RefPtr<IDWriteFont> font;
hr = mDWFamily->GetFont(i, getter_AddRefs(font));
if (FAILED(hr)) {
// This should never happen.
NS_WARNING("Failed to get existing font from family.");
continue;
}
if (font->GetSimulations() != DWRITE_FONT_SIMULATIONS_NONE) {
// We don't want these in the font list; we'll apply simulations
// on the fly when appropriate.
continue;
}
// name
nsString fullID(mName);
nsAutoString faceName;
hr = GetDirectWriteFontName(font, faceName);
if (FAILED(hr)) {
continue;
}
fullID.Append(' ');
fullID.Append(faceName);
gfxDWriteFontEntry *fe = new gfxDWriteFontEntry(fullID, font);
fe->SetForceGDIClassic(mForceGDIClassic);
AddFontEntry(fe);
// postscript/fullname if needed
nsAutoString psname, fullname;
if (fontInfoShouldHaveFaceNames) {
aFontInfoData->GetFaceNames(fe->Name(), fullname, psname);
if (!fullname.IsEmpty()) {
fp->AddFullname(fe, fullname);
}
if (!psname.IsEmpty()) {
fp->AddPostscriptName(fe, psname);
}
} else if (!skipFaceNames) {
hr = GetDirectWriteFaceName(font, PSNAME_ID, psname);
if (FAILED(hr)) {
skipFaceNames = true;
} else if (psname.Length() > 0) {
fp->AddPostscriptName(fe, psname);
}
hr = GetDirectWriteFaceName(font, FULLNAME_ID, fullname);
if (FAILED(hr)) {
skipFaceNames = true;
} else if (fullname.Length() > 0) {
fp->AddFullname(fe, fullname);
}
}
if (LOG_FONTLIST_ENABLED()) {
LOG_FONTLIST(("(fontlist) added (%s) to family (%s)"
" with style: %s weight: %d stretch: %d psname: %s fullname: %s",
NS_ConvertUTF16toUTF8(fe->Name()).get(),
NS_ConvertUTF16toUTF8(Name()).get(),
(fe->IsItalic()) ?
"italic" : (fe->IsOblique() ? "oblique" : "normal"),
fe->Weight(), fe->Stretch(),
NS_ConvertUTF16toUTF8(psname).get(),
NS_ConvertUTF16toUTF8(fullname).get()));
}
}
// assume that if no error, all postscript/fullnames were initialized
if (!skipFaceNames) {
mFaceNamesInitialized = true;
}
if (!mAvailableFonts.Length()) {
NS_WARNING("Family with no font faces in it.");
}
if (mIsBadUnderlineFamily) {
SetBadUnderlineFonts();
}
}
void
gfxDWriteFontFamily::ReadFaceNames(gfxPlatformFontList *aPlatformFontList,
bool aNeedFullnamePostscriptNames,
FontInfoData *aFontInfoData)
{
// if all needed names have already been read, skip
if (mOtherFamilyNamesInitialized &&
(mFaceNamesInitialized || !aNeedFullnamePostscriptNames)) {
return;
}
// If we've been passed a FontInfoData, we skip the DWrite implementation
// here and fall back to the generic code which will use that info.
if (!aFontInfoData) {
// DirectWrite version of this will try to read
// postscript/fullnames via DirectWrite API
FindStyleVariations();
}
// fallback to looking up via name table
if (!mOtherFamilyNamesInitialized || !mFaceNamesInitialized) {
gfxFontFamily::ReadFaceNames(aPlatformFontList,
aNeedFullnamePostscriptNames,
aFontInfoData);
}
}
void
gfxDWriteFontFamily::LocalizedName(nsAString &aLocalizedName)
{
aLocalizedName.AssignLiteral("Unknown Font");
HRESULT hr;
nsresult rv;
nsCOMPtr<nsILocaleService> ls = do_GetService(NS_LOCALESERVICE_CONTRACTID,
&rv);
nsCOMPtr<nsILocale> locale;
rv = ls->GetApplicationLocale(getter_AddRefs(locale));
nsString localeName;
if (NS_SUCCEEDED(rv)) {
rv = locale->GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE),
localeName);
}
if (NS_FAILED(rv)) {
localeName.AssignLiteral("en-us");
}
RefPtr<IDWriteLocalizedStrings> names;
hr = mDWFamily->GetFamilyNames(getter_AddRefs(names));
if (FAILED(hr)) {
return;
}
UINT32 idx = 0;
BOOL exists;
hr = names->FindLocaleName(localeName.get(),
&idx,
&exists);
if (FAILED(hr)) {
return;
}
if (!exists) {
// Use english is localized is not found.
hr = names->FindLocaleName(L"en-us", &idx, &exists);
if (FAILED(hr)) {
return;
}
if (!exists) {
// Use 0 index if english is not found.
idx = 0;
}
}
AutoTArray<WCHAR, 32> famName;
UINT32 length;
hr = names->GetStringLength(idx, &length);
if (FAILED(hr)) {
return;
}
if (!famName.SetLength(length + 1, fallible)) {
// Eeep - running out of memory. Unlikely to end well.
return;
}
hr = names->GetString(idx, famName.Elements(), length + 1);
if (FAILED(hr)) {
return;
}
aLocalizedName = nsDependentString(famName.Elements());
}
void
gfxDWriteFontFamily::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
gfxFontFamily::AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
// TODO:
// This doesn't currently account for |mDWFamily|
}
void
gfxDWriteFontFamily::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
aSizes->mFontListSize += aMallocSizeOf(this);
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
}
////////////////////////////////////////////////////////////////////////////////
// gfxDWriteFontEntry
gfxDWriteFontEntry::~gfxDWriteFontEntry()
{
}
bool
gfxDWriteFontEntry::IsSymbolFont()
{
if (mFont) {
return mFont->IsSymbolFont();
} else {
return false;
}
}
static bool
UsingArabicOrHebrewScriptSystemLocale()
{
LANGID langid = PRIMARYLANGID(::GetSystemDefaultLangID());
switch (langid) {
case LANG_ARABIC:
case LANG_DARI:
case LANG_PASHTO:
case LANG_PERSIAN:
case LANG_SINDHI:
case LANG_UIGHUR:
case LANG_URDU:
case LANG_HEBREW:
return true;
default:
return false;
}
}
nsresult
gfxDWriteFontEntry::CopyFontTable(uint32_t aTableTag,
nsTArray<uint8_t> &aBuffer)
{
gfxDWriteFontList *pFontList = gfxDWriteFontList::PlatformFontList();
const uint32_t tagBE = NativeEndian::swapToBigEndian(aTableTag);
// Don't use GDI table loading for symbol fonts or for
// italic fonts in Arabic-script system locales because of
// potential cmap discrepancies, see bug 629386.
// Ditto for Hebrew, bug 837498.
if (mFont && pFontList->UseGDIFontTableAccess() &&
!(mStyle && UsingArabicOrHebrewScriptSystemLocale()) &&
!mFont->IsSymbolFont())
{
LOGFONTW logfont = { 0 };
if (InitLogFont(mFont, &logfont)) {
AutoDC dc;
AutoSelectFont font(dc.GetDC(), &logfont);
if (font.IsValid()) {
uint32_t tableSize =
::GetFontData(dc.GetDC(), tagBE, 0, nullptr, 0);
if (tableSize != GDI_ERROR) {
if (aBuffer.SetLength(tableSize, fallible)) {
::GetFontData(dc.GetDC(), tagBE, 0,
aBuffer.Elements(), aBuffer.Length());
return NS_OK;
}
return NS_ERROR_OUT_OF_MEMORY;
}
}
}
}
RefPtr<IDWriteFontFace> fontFace;
nsresult rv = CreateFontFace(getter_AddRefs(fontFace));
if (NS_FAILED(rv)) {
return rv;
}
uint8_t *tableData;
uint32_t len;
void *tableContext = nullptr;
BOOL exists;
HRESULT hr =
fontFace->TryGetFontTable(tagBE, (const void**)&tableData, &len,
&tableContext, &exists);
if (FAILED(hr) || !exists) {
return NS_ERROR_FAILURE;
}
if (aBuffer.SetLength(len, fallible)) {
memcpy(aBuffer.Elements(), tableData, len);
rv = NS_OK;
} else {
rv = NS_ERROR_OUT_OF_MEMORY;
}
if (tableContext) {
fontFace->ReleaseFontTable(&tableContext);
}
return rv;
}
// Access to font tables packaged in hb_blob_t form
// object attached to the Harfbuzz blob, used to release
// the table when the blob is destroyed
class FontTableRec {
public:
FontTableRec(IDWriteFontFace *aFontFace, void *aContext)
: mFontFace(aFontFace), mContext(aContext)
{
MOZ_COUNT_CTOR(FontTableRec);
}
~FontTableRec() {
MOZ_COUNT_DTOR(FontTableRec);
mFontFace->ReleaseFontTable(mContext);
}
private:
RefPtr<IDWriteFontFace> mFontFace;
void *mContext;
};
static void
DestroyBlobFunc(void* aUserData)
{
FontTableRec *ftr = static_cast<FontTableRec*>(aUserData);
delete ftr;
}
hb_blob_t *
gfxDWriteFontEntry::GetFontTable(uint32_t aTag)
{
// try to avoid potentially expensive DWrite call if we haven't actually
// created the font face yet, by using the gfxFontEntry method that will
// use CopyFontTable and then cache the data
if (!mFontFace) {
return gfxFontEntry::GetFontTable(aTag);
}
const void *data;
UINT32 size;
void *context;
BOOL exists;
HRESULT hr = mFontFace->TryGetFontTable(NativeEndian::swapToBigEndian(aTag),
&data, &size, &context, &exists);
if (SUCCEEDED(hr) && exists) {
FontTableRec *ftr = new FontTableRec(mFontFace, context);
return hb_blob_create(static_cast<const char*>(data), size,
HB_MEMORY_MODE_READONLY,
ftr, DestroyBlobFunc);
}
return nullptr;
}
nsresult
gfxDWriteFontEntry::ReadCMAP(FontInfoData *aFontInfoData)
{
PROFILER_LABEL_FUNC(js::ProfileEntry::Category::GRAPHICS);
// attempt this once, if errors occur leave a blank cmap
if (mCharacterMap) {
return NS_OK;
}
RefPtr<gfxCharacterMap> charmap;
nsresult rv;
bool symbolFont;
if (aFontInfoData && (charmap = GetCMAPFromFontInfo(aFontInfoData,
mUVSOffset,
symbolFont))) {
rv = NS_OK;
} else {
uint32_t kCMAP = TRUETYPE_TAG('c','m','a','p');
charmap = new gfxCharacterMap();
AutoTable cmapTable(this, kCMAP);
if (cmapTable) {
bool unicodeFont = false, symbolFont = false; // currently ignored
uint32_t cmapLen;
const uint8_t* cmapData =
reinterpret_cast<const uint8_t*>(hb_blob_get_data(cmapTable,
&cmapLen));
rv = gfxFontUtils::ReadCMAP(cmapData, cmapLen,
*charmap, mUVSOffset,
unicodeFont, symbolFont);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
}
mHasCmapTable = NS_SUCCEEDED(rv);
if (mHasCmapTable) {
// Bug 969504: exclude U+25B6 from Segoe UI family, because it's used
// by sites to represent a "Play" icon, but the glyph in Segoe UI Light
// and Semibold on Windows 7 is too thin. (Ditto for leftward U+25C0.)
// Fallback to Segoe UI Symbol is preferred.
if (FamilyName().EqualsLiteral("Segoe UI")) {
charmap->clear(0x25b6);
charmap->clear(0x25c0);
}
gfxPlatformFontList *pfl = gfxPlatformFontList::PlatformFontList();
mCharacterMap = pfl->FindCharMap(charmap);
} else {
// if error occurred, initialize to null cmap
mCharacterMap = new gfxCharacterMap();
}
LOG_FONTLIST(("(fontlist-cmap) name: %s, size: %d hash: %8.8x%s\n",
NS_ConvertUTF16toUTF8(mName).get(),
charmap->SizeOfIncludingThis(moz_malloc_size_of),
charmap->mHash, mCharacterMap == charmap ? " new" : ""));
if (LOG_CMAPDATA_ENABLED()) {
char prefix[256];
SprintfLiteral(prefix, "(cmapdata) name: %.220s",
NS_ConvertUTF16toUTF8(mName).get());
charmap->Dump(prefix, eGfxLog_cmapdata);
}
return rv;
}
gfxFont *
gfxDWriteFontEntry::CreateFontInstance(const gfxFontStyle* aFontStyle,
bool aNeedsBold)
{
return new gfxDWriteFont(this, aFontStyle, aNeedsBold);
}
nsresult
gfxDWriteFontEntry::CreateFontFace(IDWriteFontFace **aFontFace,
DWRITE_FONT_SIMULATIONS aSimulations)
{
// initialize mFontFace if this hasn't been done before
if (!mFontFace) {
HRESULT hr;
if (mFont) {
hr = mFont->CreateFontFace(getter_AddRefs(mFontFace));
} else if (mFontFile) {
IDWriteFontFile *fontFile = mFontFile.get();
hr = gfxWindowsPlatform::GetPlatform()->GetDWriteFactory()->
CreateFontFace(mFaceType,
1,
&fontFile,
0,
DWRITE_FONT_SIMULATIONS_NONE,
getter_AddRefs(mFontFace));
} else {
NS_NOTREACHED("invalid font entry");
return NS_ERROR_FAILURE;
}
if (FAILED(hr)) {
return NS_ERROR_FAILURE;
}
}
// check whether we need to add a DWrite simulated style
if ((aSimulations & DWRITE_FONT_SIMULATIONS_BOLD) &&
!(mFontFace->GetSimulations() & DWRITE_FONT_SIMULATIONS_BOLD)) {
// if so, we need to return not mFontFace itself but a version that
// has the Bold simulation - unfortunately, DWrite doesn't provide
// a simple API for this
UINT32 numberOfFiles = 0;
if (FAILED(mFontFace->GetFiles(&numberOfFiles, nullptr))) {
return NS_ERROR_FAILURE;
}
AutoTArray<IDWriteFontFile*,1> files;
files.AppendElements(numberOfFiles);
if (FAILED(mFontFace->GetFiles(&numberOfFiles, files.Elements()))) {
return NS_ERROR_FAILURE;
}
HRESULT hr = gfxWindowsPlatform::GetPlatform()->GetDWriteFactory()->
CreateFontFace(mFontFace->GetType(),
numberOfFiles,
files.Elements(),
mFontFace->GetIndex(),
aSimulations,
aFontFace);
for (UINT32 i = 0; i < numberOfFiles; ++i) {
files[i]->Release();
}
return FAILED(hr) ? NS_ERROR_FAILURE : NS_OK;
}
// no simulation: we can just add a reference to mFontFace and return that
*aFontFace = mFontFace;
(*aFontFace)->AddRef();
return NS_OK;
}
bool
gfxDWriteFontEntry::InitLogFont(IDWriteFont *aFont, LOGFONTW *aLogFont)
{
HRESULT hr;
BOOL isInSystemCollection;
IDWriteGdiInterop *gdi =
gfxDWriteFontList::PlatformFontList()->GetGDIInterop();
hr = gdi->ConvertFontToLOGFONT(aFont, aLogFont, &isInSystemCollection);
// If the font is not in the system collection, GDI will be unable to
// select it and load its tables, so we return false here to indicate
// failure, and let CopyFontTable fall back to DWrite native methods.
return (SUCCEEDED(hr) && isInSystemCollection);
}
bool
gfxDWriteFontEntry::IsCJKFont()
{
if (mIsCJK != UNINITIALIZED_VALUE) {
return mIsCJK;
}
mIsCJK = false;
const uint32_t kOS2Tag = TRUETYPE_TAG('O','S','/','2');
AutoTArray<uint8_t, 128> buffer;
if (CopyFontTable(kOS2Tag, buffer) != NS_OK) {
return mIsCJK;
}
// ulCodePageRange bit definitions for the CJK codepages,
// from http://www.microsoft.com/typography/otspec/os2.htm#cpr
const uint32_t CJK_CODEPAGE_BITS =
(1 << 17) | // codepage 932 - JIS/Japan
(1 << 18) | // codepage 936 - Chinese (simplified)
(1 << 19) | // codepage 949 - Korean Wansung
(1 << 20) | // codepage 950 - Chinese (traditional)
(1 << 21); // codepage 1361 - Korean Johab
if (buffer.Length() >= offsetof(OS2Table, sxHeight)) {
const OS2Table* os2 =
reinterpret_cast<const OS2Table*>(buffer.Elements());
if ((uint32_t(os2->codePageRange1) & CJK_CODEPAGE_BITS) != 0) {
mIsCJK = true;
}
}
return mIsCJK;
}
void
gfxDWriteFontEntry::AddSizeOfExcludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
gfxFontEntry::AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
// TODO:
// This doesn't currently account for the |mFont| and |mFontFile| members
}
void
gfxDWriteFontEntry::AddSizeOfIncludingThis(MallocSizeOf aMallocSizeOf,
FontListSizes* aSizes) const
{
aSizes->mFontListSize += aMallocSizeOf(this);
AddSizeOfExcludingThis(aMallocSizeOf, aSizes);
}
////////////////////////////////////////////////////////////////////////////////
// gfxDWriteFontList
gfxDWriteFontList::gfxDWriteFontList()
: mForceGDIClassicMaxFontSize(0.0)
{
}
// bug 602792 - CJK systems default to large CJK fonts which cause excessive
// I/O strain during cold startup due to dwrite caching bugs. Default to
// Arial to avoid this.
gfxFontFamily *
gfxDWriteFontList::GetDefaultFontForPlatform(const gfxFontStyle *aStyle)
{
nsAutoString resolvedName;
// try Arial first
gfxFontFamily *ff;
if ((ff = FindFamily(NS_LITERAL_STRING("Arial")))) {
return ff;
}
// otherwise, use local default
NONCLIENTMETRICSW ncm;
ncm.cbSize = sizeof(ncm);
BOOL status = ::SystemParametersInfoW(SPI_GETNONCLIENTMETRICS,
sizeof(ncm), &ncm, 0);
if (status) {
ff = FindFamily(nsDependentString(ncm.lfMessageFont.lfFaceName));
if (ff) {
return ff;
}
}
return nullptr;
}
gfxFontEntry *
gfxDWriteFontList::LookupLocalFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle)
{
gfxFontEntry *lookup;
lookup = LookupInFaceNameLists(aFontName);
if (!lookup) {
return nullptr;
}
gfxDWriteFontEntry* dwriteLookup = static_cast<gfxDWriteFontEntry*>(lookup);
gfxDWriteFontEntry *fe =
new gfxDWriteFontEntry(lookup->Name(),
dwriteLookup->mFont,
aWeight,
aStretch,
aStyle);
fe->SetForceGDIClassic(dwriteLookup->GetForceGDIClassic());
return fe;
}
gfxFontEntry *
gfxDWriteFontList::MakePlatformFont(const nsAString& aFontName,
uint16_t aWeight,
int16_t aStretch,
uint8_t aStyle,
const uint8_t* aFontData,
uint32_t aLength)
{
nsresult rv;
nsAutoString uniqueName;
rv = gfxFontUtils::MakeUniqueUserFontName(uniqueName);
if (NS_FAILED(rv)) {
free((void*)aFontData);
return nullptr;
}
FallibleTArray<uint8_t> newFontData;
rv = gfxFontUtils::RenameFont(uniqueName, aFontData, aLength, &newFontData);
free((void*)aFontData);
if (NS_FAILED(rv)) {
return nullptr;
}
RefPtr<IDWriteFontFileStream> fontFileStream;
RefPtr<IDWriteFontFile> fontFile;
HRESULT hr =
gfxDWriteFontFileLoader::CreateCustomFontFile(newFontData,
getter_AddRefs(fontFile),
getter_AddRefs(fontFileStream));
if (FAILED(hr)) {
NS_WARNING("Failed to create custom font file reference.");
return nullptr;
}
BOOL isSupported;
DWRITE_FONT_FILE_TYPE fileType;
UINT32 numFaces;
gfxDWriteFontEntry *entry =
new gfxDWriteFontEntry(uniqueName,
fontFile,
fontFileStream,
aWeight,
aStretch,
aStyle);
fontFile->Analyze(&isSupported, &fileType, &entry->mFaceType, &numFaces);
if (!isSupported || numFaces > 1) {
// We don't know how to deal with 0 faces either.
delete entry;
return nullptr;
}
return entry;
}
enum DWriteInitError {
errGDIInterop = 1,
errSystemFontCollection = 2,
errNoFonts = 3
};
nsresult
gfxDWriteFontList::InitFontListForPlatform()
{
LARGE_INTEGER frequency; // ticks per second
LARGE_INTEGER t1, t2, t3, t4, t5; // ticks
double elapsedTime, upTime;
char nowTime[256], nowDate[256];
if (LOG_FONTINIT_ENABLED()) {
GetTimeFormatA(LOCALE_INVARIANT, TIME_FORCE24HOURFORMAT,
nullptr, nullptr, nowTime, 256);
GetDateFormatA(LOCALE_INVARIANT, 0, nullptr, nullptr, nowDate, 256);
upTime = (double) GetTickCount();
}
QueryPerformanceFrequency(&frequency);
QueryPerformanceCounter(&t1); // start
HRESULT hr;
mGDIFontTableAccess =
Preferences::GetBool("gfx.font_rendering.directwrite.use_gdi_table_loading",
false);
mFontSubstitutes.Clear();
mNonExistingFonts.Clear();
hr = gfxWindowsPlatform::GetPlatform()->GetDWriteFactory()->
GetGdiInterop(getter_AddRefs(mGDIInterop));
if (FAILED(hr)) {
Telemetry::Accumulate(Telemetry::DWRITEFONT_INIT_PROBLEM,
uint32_t(errGDIInterop));
return NS_ERROR_FAILURE;
}
QueryPerformanceCounter(&t2); // base-class/interop initialization
RefPtr<IDWriteFactory> factory =
gfxWindowsPlatform::GetPlatform()->GetDWriteFactory();
hr = factory->GetSystemFontCollection(getter_AddRefs(mSystemFonts));
NS_ASSERTION(SUCCEEDED(hr), "GetSystemFontCollection failed!");
if (FAILED(hr)) {
Telemetry::Accumulate(Telemetry::DWRITEFONT_INIT_PROBLEM,
uint32_t(errSystemFontCollection));
return NS_ERROR_FAILURE;
}
QueryPerformanceCounter(&t3); // system font collection
GetFontsFromCollection(mSystemFonts);
// if no fonts found, something is out of whack, bail and use GDI backend
NS_ASSERTION(mFontFamilies.Count() != 0,
"no fonts found in the system fontlist -- holy crap batman!");
if (mFontFamilies.Count() == 0) {
Telemetry::Accumulate(Telemetry::DWRITEFONT_INIT_PROBLEM,
uint32_t(errNoFonts));
return NS_ERROR_FAILURE;
}
QueryPerformanceCounter(&t4); // iterate over system fonts
#ifdef MOZ_BUNDLED_FONTS
mBundledFonts = CreateBundledFontsCollection(factory);
if (mBundledFonts) {
GetFontsFromCollection(mBundledFonts);
}
#endif
mOtherFamilyNamesInitialized = true;
GetFontSubstitutes();
// bug 642093 - DirectWrite does not support old bitmap (.fon)
// font files, but a few of these such as "Courier" and "MS Sans Serif"
// are frequently specified in shoddy CSS, without appropriate fallbacks.
// By mapping these to TrueType equivalents, we provide better consistency
// with both pre-DW systems and with IE9, which appears to do the same.
GetDirectWriteSubstitutes();
// bug 551313 - DirectWrite creates a Gill Sans family out of
// poorly named members of the Gill Sans MT family containing
// only Ultra Bold weights. This causes big problems for pages
// using Gill Sans which is usually only available on OSX
nsAutoString nameGillSans(L"Gill Sans");
nsAutoString nameGillSansMT(L"Gill Sans MT");
BuildKeyNameFromFontName(nameGillSans);
BuildKeyNameFromFontName(nameGillSansMT);
gfxFontFamily *gillSansFamily = mFontFamilies.GetWeak(nameGillSans);
gfxFontFamily *gillSansMTFamily = mFontFamilies.GetWeak(nameGillSansMT);
if (gillSansFamily && gillSansMTFamily) {
gillSansFamily->FindStyleVariations();
nsTArray<RefPtr<gfxFontEntry> >& faces = gillSansFamily->GetFontList();
uint32_t i;
bool allUltraBold = true;
for (i = 0; i < faces.Length(); i++) {
// does the face have 'Ultra Bold' in the name?
if (faces[i]->Name().Find(NS_LITERAL_STRING("Ultra Bold")) == -1) {
allUltraBold = false;
break;
}
}
// if all the Gill Sans faces are Ultra Bold ==> move faces
// for Gill Sans into Gill Sans MT family
if (allUltraBold) {
// add faces to Gill Sans MT
for (i = 0; i < faces.Length(); i++) {
// change the entry's family name to match its adoptive family
faces[i]->mFamilyName = gillSansMTFamily->Name();
gillSansMTFamily->AddFontEntry(faces[i]);
if (LOG_FONTLIST_ENABLED()) {
gfxFontEntry *fe = faces[i];
LOG_FONTLIST(("(fontlist) moved (%s) to family (%s)"
" with style: %s weight: %d stretch: %d",
NS_ConvertUTF16toUTF8(fe->Name()).get(),
NS_ConvertUTF16toUTF8(gillSansMTFamily->Name()).get(),
(fe->IsItalic()) ?
"italic" : (fe->IsOblique() ? "oblique" : "normal"),
fe->Weight(), fe->Stretch()));
}
}
// remove Gills Sans
mFontFamilies.Remove(nameGillSans);
}
}
nsAdoptingCString classicFamilies =
Preferences::GetCString("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families");
if (classicFamilies) {
nsCCharSeparatedTokenizer tokenizer(classicFamilies, ',');
while (tokenizer.hasMoreTokens()) {
NS_ConvertUTF8toUTF16 name(tokenizer.nextToken());
BuildKeyNameFromFontName(name);
gfxFontFamily *family = mFontFamilies.GetWeak(name);
if (family) {
static_cast<gfxDWriteFontFamily*>(family)->SetForceGDIClassic(true);
}
}
}
mForceGDIClassicMaxFontSize =
Preferences::GetInt("gfx.font_rendering.cleartype_params.force_gdi_classic_max_size",
mForceGDIClassicMaxFontSize);
GetPrefsAndStartLoader();
QueryPerformanceCounter(&t5); // misc initialization
if (LOG_FONTINIT_ENABLED()) {
// determine dwrite version
nsAutoString dwriteVers;
gfxWindowsPlatform::GetDLLVersion(L"dwrite.dll", dwriteVers);
LOG_FONTINIT(("(fontinit) Start: %s %s\n", nowDate, nowTime));
LOG_FONTINIT(("(fontinit) Uptime: %9.3f s\n", upTime/1000));
LOG_FONTINIT(("(fontinit) dwrite version: %s\n",
NS_ConvertUTF16toUTF8(dwriteVers).get()));