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gecko-dev/gfx/thebes/gfxPlatform.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Foundation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "gfxPlatform.h"
#if defined(XP_WIN)
#include "gfxWindowsPlatform.h"
#elif defined(XP_MACOSX)
#include "gfxPlatformMac.h"
#elif defined(MOZ_WIDGET_GTK2)
#include "gfxPlatformGtk.h"
#elif defined(MOZ_WIDGET_QT)
#include "gfxQtPlatform.h"
#elif defined(XP_BEOS)
#include "gfxBeOSPlatform.h"
#elif defined(XP_OS2)
#include "gfxOS2Platform.h"
#elif defined(ANDROID)
#include "gfxAndroidPlatform.h"
#endif
#include "gfxAtoms.h"
#include "gfxPlatformFontList.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "gfxTextRunCache.h"
#include "gfxTextRunWordCache.h"
#include "gfxUserFontSet.h"
#include "nsUnicodeRange.h"
#include "nsServiceManagerUtils.h"
#include "nsTArray.h"
#include "nsIUGenCategory.h"
#include "nsUnicharUtilCIID.h"
#include "nsILocaleService.h"
#include "nsWeakReference.h"
#include "cairo.h"
#include "qcms.h"
#include "plstr.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIPrefBranch2.h"
#include "nsIPrefLocalizedString.h"
#include "nsCRT.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "mozilla/FunctionTimer.h"
#include "nsIGfxInfo.h"
gfxPlatform *gPlatform = nsnull;
// These two may point to the same profile
static qcms_profile *gCMSOutputProfile = nsnull;
static qcms_profile *gCMSsRGBProfile = nsnull;
static qcms_transform *gCMSRGBTransform = nsnull;
static qcms_transform *gCMSInverseRGBTransform = nsnull;
static qcms_transform *gCMSRGBATransform = nsnull;
static PRBool gCMSInitialized = PR_FALSE;
static eCMSMode gCMSMode = eCMSMode_Off;
static int gCMSIntent = -2;
static const char *CMPrefName = "gfx.color_management.mode";
static const char *CMPrefNameOld = "gfx.color_management.enabled";
static const char *CMIntentPrefName = "gfx.color_management.rendering_intent";
static const char *CMProfilePrefName = "gfx.color_management.display_profile";
static const char *CMForceSRGBPrefName = "gfx.color_management.force_srgb";
static void ShutdownCMS();
static void MigratePrefs();
/* Class to listen for pref changes so that chrome code can dynamically
force sRGB as an output profile. See Bug #452125. */
class SRGBOverrideObserver : public nsIObserver,
public nsSupportsWeakReference
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
};
NS_IMPL_ISUPPORTS2(SRGBOverrideObserver, nsIObserver, nsISupportsWeakReference)
NS_IMETHODIMP
SRGBOverrideObserver::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *someData)
{
NS_ASSERTION(NS_strcmp(someData,
NS_LITERAL_STRING("gfx.color_mangement.force_srgb").get()),
"Restarting CMS on wrong pref!");
ShutdownCMS();
return NS_OK;
}
#define GFX_DOWNLOADABLE_FONTS_ENABLED "gfx.downloadable_fonts.enabled"
#define GFX_PREF_HARFBUZZ_LEVEL "gfx.font_rendering.harfbuzz.level"
#define HARFBUZZ_LEVEL_DEFAULT 0
class FontPrefsObserver : public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
};
NS_IMPL_ISUPPORTS1(FontPrefsObserver, nsIObserver)
NS_IMETHODIMP
FontPrefsObserver::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *someData)
{
nsCOMPtr<nsIPrefBranch> branch = do_QueryInterface(aSubject);
if (!branch || someData == nsnull) {
NS_ERROR("font pref observer code broken");
return NS_ERROR_UNEXPECTED;
}
gfxPlatform::GetPlatform()->FontsPrefsChanged(branch,
NS_ConvertUTF16toUTF8(someData).get());
return NS_OK;
}
// this needs to match the list of pref font.default.xx entries listed in all.js!
// the order *must* match the order in eFontPrefLang
static const char *gPrefLangNames[] = {
"x-western",
"x-central-euro",
"ja",
"zh-TW",
"zh-CN",
"zh-HK",
"ko",
"x-cyrillic",
"x-baltic",
"el",
"tr",
"th",
"he",
"ar",
"x-devanagari",
"x-tamil",
"x-armn",
"x-beng",
"x-cans",
"x-ethi",
"x-geor",
"x-gujr",
"x-guru",
"x-khmr",
"x-mlym",
"x-orya",
"x-telu",
"x-knda",
"x-sinh",
"x-tibt",
"x-unicode",
"x-user-def"
};
gfxPlatform::gfxPlatform()
{
mUseHarfBuzzLevel = UNINITIALIZED_VALUE;
mAllowDownloadableFonts = UNINITIALIZED_VALUE;
}
gfxPlatform*
gfxPlatform::GetPlatform()
{
return gPlatform;
}
nsresult
gfxPlatform::Init()
{
NS_ASSERTION(!gPlatform, "Already started???");
gfxAtoms::RegisterAtoms();
/* Initialize the GfxInfo service.
* Note: we can't call functions on GfxInfo that depend
* on gPlatform until after it has been initialized
* below. GfxInfo initialization annotates our
* crash reports so we want to do it before
* we try to load any drivers and do device detection
* incase that code crashes. See bug #591561. */
nsCOMPtr<nsIGfxInfo> gfxInfo;
/* this currently will only succeed on Windows */
gfxInfo = do_GetService("@mozilla.org/gfx/info;1");
#if defined(XP_WIN)
gPlatform = new gfxWindowsPlatform;
#elif defined(XP_MACOSX)
gPlatform = new gfxPlatformMac;
#elif defined(MOZ_WIDGET_GTK2)
gPlatform = new gfxPlatformGtk;
#elif defined(MOZ_WIDGET_QT)
gPlatform = new gfxQtPlatform;
#elif defined(XP_BEOS)
gPlatform = new gfxBeOSPlatform;
#elif defined(XP_OS2)
gPlatform = new gfxOS2Platform;
#elif defined(ANDROID)
gPlatform = new gfxAndroidPlatform;
#endif
if (!gPlatform)
return NS_ERROR_OUT_OF_MEMORY;
gPlatform->mScreenReferenceSurface =
gPlatform->CreateOffscreenSurface(gfxIntSize(1,1),
gfxASurface::CONTENT_COLOR_ALPHA);
if (!gPlatform->mScreenReferenceSurface) {
NS_ERROR("Could not initialize mScreenReferenceSurface");
Shutdown();
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv;
#if defined(XP_MACOSX) || defined(XP_WIN) || defined(ANDROID) // temporary, until this is implemented on others
rv = gfxPlatformFontList::Init();
if (NS_FAILED(rv)) {
NS_ERROR("Could not initialize gfxPlatformFontList");
Shutdown();
return rv;
}
#endif
rv = gfxFontCache::Init();
if (NS_FAILED(rv)) {
NS_ERROR("Could not initialize gfxFontCache");
Shutdown();
return rv;
}
rv = gfxTextRunWordCache::Init();
if (NS_FAILED(rv)) {
NS_ERROR("Could not initialize gfxTextRunWordCache");
Shutdown();
return rv;
}
rv = gfxTextRunCache::Init();
if (NS_FAILED(rv)) {
NS_ERROR("Could not initialize gfxTextRunCache");
Shutdown();
return rv;
}
/* Pref migration hook. */
MigratePrefs();
/* Create and register our CMS Override observer. */
gPlatform->overrideObserver = new SRGBOverrideObserver();
FontPrefsObserver *fontPrefObserver = new FontPrefsObserver();
nsCOMPtr<nsIPrefBranch2> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
prefs->AddObserver(CMForceSRGBPrefName, gPlatform->overrideObserver, PR_TRUE);
prefs->AddObserver(GFX_DOWNLOADABLE_FONTS_ENABLED, fontPrefObserver, PR_FALSE);
prefs->AddObserver("gfx.font_rendering.", fontPrefObserver, PR_FALSE);
}
return NS_OK;
}
void
gfxPlatform::Shutdown()
{
// These may be called before the corresponding subsystems have actually
// started up. That's OK, they can handle it.
gfxTextRunCache::Shutdown();
gfxTextRunWordCache::Shutdown();
gfxFontCache::Shutdown();
gfxFontGroup::Shutdown();
#if defined(XP_MACOSX) || defined(XP_WIN) // temporary, until this is implemented on others
gfxPlatformFontList::Shutdown();
#endif
// Free the various non-null transforms and loaded profiles
ShutdownCMS();
/* Unregister our CMS Override callback. */
nsCOMPtr<nsIPrefBranch2> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs)
prefs->RemoveObserver(CMForceSRGBPrefName, gPlatform->overrideObserver);
mozilla::gl::GLContextProvider::Shutdown();
delete gPlatform;
gPlatform = nsnull;
}
gfxPlatform::~gfxPlatform()
{
// The cairo folks think we should only clean up in debug builds,
// but we're generally in the habit of trying to shut down as
// cleanly as possible even in production code, so call this
// cairo_debug_* function unconditionally.
//
// because cairo can assert and thus crash on shutdown, don't do this in release builds
#if MOZ_TREE_CAIRO && (defined(DEBUG) || defined(NS_BUILD_REFCNT_LOGGING) || defined(NS_TRACE_MALLOC))
cairo_debug_reset_static_data();
#endif
#if 0
// It would be nice to do this (although it might need to be after
// the cairo shutdown that happens in ~gfxPlatform). It even looks
// idempotent. But it has fatal assertions that fire if stuff is
// leaked, and we hit them.
FcFini();
#endif
}
already_AddRefed<gfxASurface>
gfxPlatform::OptimizeImage(gfxImageSurface *aSurface,
gfxASurface::gfxImageFormat format)
{
const gfxIntSize& surfaceSize = aSurface->GetSize();
#ifdef XP_WIN
if (gfxWindowsPlatform::GetPlatform()->GetRenderMode() ==
gfxWindowsPlatform::RENDER_DIRECT2D) {
return nsnull;
}
#endif
nsRefPtr<gfxASurface> optSurface = CreateOffscreenSurface(surfaceSize, gfxASurface::ContentFromFormat(format));
if (!optSurface || optSurface->CairoStatus() != 0)
return nsnull;
gfxContext tmpCtx(optSurface);
tmpCtx.SetOperator(gfxContext::OPERATOR_SOURCE);
tmpCtx.SetSource(aSurface);
tmpCtx.Paint();
gfxASurface *ret = optSurface;
NS_ADDREF(ret);
return ret;
}
nsresult
gfxPlatform::GetFontList(nsIAtom *aLangGroup,
const nsACString& aGenericFamily,
nsTArray<nsString>& aListOfFonts)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
gfxPlatform::UpdateFontList()
{
return NS_ERROR_NOT_IMPLEMENTED;
}
PRBool
gfxPlatform::GetBoolPref(const char *aPref, PRBool aDefault)
{
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
PRBool allow;
nsresult rv = prefs->GetBoolPref(aPref, &allow);
if (NS_SUCCEEDED(rv))
return allow;
}
return aDefault;
}
PRBool
gfxPlatform::DownloadableFontsEnabled()
{
if (mAllowDownloadableFonts == UNINITIALIZED_VALUE) {
mAllowDownloadableFonts = GetBoolPref(GFX_DOWNLOADABLE_FONTS_ENABLED, PR_FALSE);
}
return mAllowDownloadableFonts;
}
PRInt8
gfxPlatform::UseHarfBuzzLevel()
{
if (mUseHarfBuzzLevel == UNINITIALIZED_VALUE) {
mUseHarfBuzzLevel = HARFBUZZ_LEVEL_DEFAULT;
nsCOMPtr<nsIPrefBranch2> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
PRInt32 level;
nsresult rv = prefs->GetIntPref(GFX_PREF_HARFBUZZ_LEVEL, &level);
if (NS_SUCCEEDED(rv)) {
mUseHarfBuzzLevel = level;
}
}
}
return mUseHarfBuzzLevel;
}
gfxFontEntry*
gfxPlatform::MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
const PRUint8 *aFontData,
PRUint32 aLength)
{
// Default implementation does not handle activating downloaded fonts;
// just free the data and return.
// Platforms that support @font-face must override this,
// using the data to instantiate the font, and taking responsibility
// for freeing it when no longer required.
if (aFontData) {
NS_Free((void*)aFontData);
}
return nsnull;
}
static void
AppendGenericFontFromPref(nsString& aFonts, nsIAtom *aLangGroup, const char *aGenericName)
{
nsresult rv;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (!prefs)
return;
nsCAutoString prefName, langGroupString;
nsXPIDLCString nameValue, nameListValue;
aLangGroup->ToUTF8String(langGroupString);
nsCAutoString genericDotLang;
if (aGenericName) {
genericDotLang.Assign(aGenericName);
} else {
prefName.AssignLiteral("font.default.");
prefName.Append(langGroupString);
prefs->GetCharPref(prefName.get(), getter_Copies(genericDotLang));
}
genericDotLang.AppendLiteral(".");
genericDotLang.Append(langGroupString);
// fetch font.name.xxx value
prefName.AssignLiteral("font.name.");
prefName.Append(genericDotLang);
rv = prefs->GetCharPref(prefName.get(), getter_Copies(nameValue));
if (NS_SUCCEEDED(rv)) {
if (!aFonts.IsEmpty())
aFonts.AppendLiteral(", ");
aFonts.Append(NS_ConvertUTF8toUTF16(nameValue));
}
// fetch font.name-list.xxx value
prefName.AssignLiteral("font.name-list.");
prefName.Append(genericDotLang);
rv = prefs->GetCharPref(prefName.get(), getter_Copies(nameListValue));
if (NS_SUCCEEDED(rv) && !nameListValue.Equals(nameValue)) {
if (!aFonts.IsEmpty())
aFonts.AppendLiteral(", ");
aFonts.Append(NS_ConvertUTF8toUTF16(nameListValue));
}
}
void
gfxPlatform::GetPrefFonts(nsIAtom *aLanguage, nsString& aFonts, PRBool aAppendUnicode)
{
aFonts.Truncate();
AppendGenericFontFromPref(aFonts, aLanguage, nsnull);
if (aAppendUnicode)
AppendGenericFontFromPref(aFonts, gfxAtoms::x_unicode, nsnull);
}
PRBool gfxPlatform::ForEachPrefFont(eFontPrefLang aLangArray[], PRUint32 aLangArrayLen, PrefFontCallback aCallback,
void *aClosure)
{
nsresult rv;
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
if (!prefs)
return PR_FALSE;
PRUint32 i;
for (i = 0; i < aLangArrayLen; i++) {
eFontPrefLang prefLang = aLangArray[i];
const char *langGroup = GetPrefLangName(prefLang);
nsCAutoString prefName;
nsXPIDLCString nameValue, nameListValue;
nsCAutoString genericDotLang;
prefName.AssignLiteral("font.default.");
prefName.Append(langGroup);
prefs->GetCharPref(prefName.get(), getter_Copies(genericDotLang));
genericDotLang.AppendLiteral(".");
genericDotLang.Append(langGroup);
// fetch font.name.xxx value
prefName.AssignLiteral("font.name.");
prefName.Append(genericDotLang);
rv = prefs->GetCharPref(prefName.get(), getter_Copies(nameValue));
if (NS_SUCCEEDED(rv)) {
if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(nameValue), aClosure))
return PR_FALSE;
}
// fetch font.name-list.xxx value
prefName.AssignLiteral("font.name-list.");
prefName.Append(genericDotLang);
rv = prefs->GetCharPref(prefName.get(), getter_Copies(nameListValue));
if (NS_SUCCEEDED(rv) && !nameListValue.Equals(nameValue)) {
const char kComma = ',';
const char *p, *p_end;
nsCAutoString list(nameListValue);
list.BeginReading(p);
list.EndReading(p_end);
while (p < p_end) {
while (nsCRT::IsAsciiSpace(*p)) {
if (++p == p_end)
break;
}
if (p == p_end)
break;
const char *start = p;
while (++p != p_end && *p != kComma)
/* nothing */ ;
nsCAutoString fontName(Substring(start, p));
fontName.CompressWhitespace(PR_FALSE, PR_TRUE);
if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(fontName), aClosure))
return PR_FALSE;
p++;
}
}
}
return PR_TRUE;
}
eFontPrefLang
gfxPlatform::GetFontPrefLangFor(const char* aLang)
{
if (!aLang || !aLang[0])
return eFontPrefLang_Others;
for (PRUint32 i = 0; i < PRUint32(eFontPrefLang_LangCount); ++i) {
if (!PL_strcasecmp(gPrefLangNames[i], aLang))
return eFontPrefLang(i);
}
return eFontPrefLang_Others;
}
eFontPrefLang
gfxPlatform::GetFontPrefLangFor(nsIAtom *aLang)
{
if (!aLang)
return eFontPrefLang_Others;
nsCAutoString lang;
aLang->ToUTF8String(lang);
return GetFontPrefLangFor(lang.get());
}
const char*
gfxPlatform::GetPrefLangName(eFontPrefLang aLang)
{
if (PRUint32(aLang) < PRUint32(eFontPrefLang_AllCount))
return gPrefLangNames[PRUint32(aLang)];
return nsnull;
}
eFontPrefLang
gfxPlatform::GetFontPrefLangFor(PRUint8 aUnicodeRange)
{
switch (aUnicodeRange) {
case kRangeSetLatin: return eFontPrefLang_Western;
case kRangeCyrillic: return eFontPrefLang_Cyrillic;
case kRangeGreek: return eFontPrefLang_Greek;
case kRangeTurkish: return eFontPrefLang_Turkish;
case kRangeHebrew: return eFontPrefLang_Hebrew;
case kRangeArabic: return eFontPrefLang_Arabic;
case kRangeBaltic: return eFontPrefLang_Baltic;
case kRangeThai: return eFontPrefLang_Thai;
case kRangeKorean: return eFontPrefLang_Korean;
case kRangeJapanese: return eFontPrefLang_Japanese;
case kRangeSChinese: return eFontPrefLang_ChineseCN;
case kRangeTChinese: return eFontPrefLang_ChineseTW;
case kRangeDevanagari: return eFontPrefLang_Devanagari;
case kRangeTamil: return eFontPrefLang_Tamil;
case kRangeArmenian: return eFontPrefLang_Armenian;
case kRangeBengali: return eFontPrefLang_Bengali;
case kRangeCanadian: return eFontPrefLang_Canadian;
case kRangeEthiopic: return eFontPrefLang_Ethiopic;
case kRangeGeorgian: return eFontPrefLang_Georgian;
case kRangeGujarati: return eFontPrefLang_Gujarati;
case kRangeGurmukhi: return eFontPrefLang_Gurmukhi;
case kRangeKhmer: return eFontPrefLang_Khmer;
case kRangeMalayalam: return eFontPrefLang_Malayalam;
case kRangeSetCJK: return eFontPrefLang_CJKSet;
default: return eFontPrefLang_Others;
}
}
PRBool
gfxPlatform::IsLangCJK(eFontPrefLang aLang)
{
switch (aLang) {
case eFontPrefLang_Japanese:
case eFontPrefLang_ChineseTW:
case eFontPrefLang_ChineseCN:
case eFontPrefLang_ChineseHK:
case eFontPrefLang_Korean:
case eFontPrefLang_CJKSet:
return PR_TRUE;
default:
return PR_FALSE;
}
}
void
gfxPlatform::GetLangPrefs(eFontPrefLang aPrefLangs[], PRUint32 &aLen, eFontPrefLang aCharLang, eFontPrefLang aPageLang)
{
if (IsLangCJK(aCharLang)) {
AppendCJKPrefLangs(aPrefLangs, aLen, aCharLang, aPageLang);
} else {
AppendPrefLang(aPrefLangs, aLen, aCharLang);
}
AppendPrefLang(aPrefLangs, aLen, eFontPrefLang_Others);
}
void
gfxPlatform::AppendCJKPrefLangs(eFontPrefLang aPrefLangs[], PRUint32 &aLen, eFontPrefLang aCharLang, eFontPrefLang aPageLang)
{
nsCOMPtr<nsIPrefBranch> prefs(do_GetService(NS_PREFSERVICE_CONTRACTID));
// prefer the lang specified by the page *if* CJK
if (IsLangCJK(aPageLang)) {
AppendPrefLang(aPrefLangs, aLen, aPageLang);
}
// if not set up, set up the default CJK order, based on accept lang settings and locale
if (mCJKPrefLangs.Length() == 0) {
// temp array
eFontPrefLang tempPrefLangs[kMaxLenPrefLangList];
PRUint32 tempLen = 0;
// Add the CJK pref fonts from accept languages, the order should be same order
nsCAutoString list;
if (prefs) {
nsCOMPtr<nsIPrefLocalizedString> prefString;
nsresult rv =
prefs->GetComplexValue("intl.accept_languages",
NS_GET_IID(nsIPrefLocalizedString),
getter_AddRefs(prefString));
if (NS_SUCCEEDED(rv) && prefString) {
nsAutoString temp;
prefString->ToString(getter_Copies(temp));
LossyCopyUTF16toASCII(temp, list);
}
}
if (!list.IsEmpty()) {
const char kComma = ',';
const char *p, *p_end;
list.BeginReading(p);
list.EndReading(p_end);
while (p < p_end) {
while (nsCRT::IsAsciiSpace(*p)) {
if (++p == p_end)
break;
}
if (p == p_end)
break;
const char *start = p;
while (++p != p_end && *p != kComma)
/* nothing */ ;
nsCAutoString lang(Substring(start, p));
lang.CompressWhitespace(PR_FALSE, PR_TRUE);
eFontPrefLang fpl = gfxPlatform::GetFontPrefLangFor(lang.get());
switch (fpl) {
case eFontPrefLang_Japanese:
case eFontPrefLang_Korean:
case eFontPrefLang_ChineseCN:
case eFontPrefLang_ChineseHK:
case eFontPrefLang_ChineseTW:
AppendPrefLang(tempPrefLangs, tempLen, fpl);
break;
default:
break;
}
p++;
}
}
do { // to allow 'break' to abort this block if a call fails
nsresult rv;
nsCOMPtr<nsILocaleService> ls =
do_GetService(NS_LOCALESERVICE_CONTRACTID, &rv);
if (NS_FAILED(rv))
break;
nsCOMPtr<nsILocale> appLocale;
rv = ls->GetApplicationLocale(getter_AddRefs(appLocale));
if (NS_FAILED(rv))
break;
nsString localeStr;
rv = appLocale->
GetCategory(NS_LITERAL_STRING(NSILOCALE_MESSAGE), localeStr);
if (NS_FAILED(rv))
break;
const nsAString& lang = Substring(localeStr, 0, 2);
if (lang.EqualsLiteral("ja")) {
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
} else if (lang.EqualsLiteral("zh")) {
const nsAString& region = Substring(localeStr, 3, 2);
if (region.EqualsLiteral("CN")) {
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN);
} else if (region.EqualsLiteral("TW")) {
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW);
} else if (region.EqualsLiteral("HK")) {
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK);
}
} else if (lang.EqualsLiteral("ko")) {
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean);
}
} while (0);
// last resort... (the order is same as old gfx.)
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Korean);
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseCN);
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseHK);
AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_ChineseTW);
// copy into the cached array
PRUint32 j;
for (j = 0; j < tempLen; j++) {
mCJKPrefLangs.AppendElement(tempPrefLangs[j]);
}
}
// append in cached CJK langs
PRUint32 i, numCJKlangs = mCJKPrefLangs.Length();
for (i = 0; i < numCJKlangs; i++) {
AppendPrefLang(aPrefLangs, aLen, (eFontPrefLang) (mCJKPrefLangs[i]));
}
}
void
gfxPlatform::AppendPrefLang(eFontPrefLang aPrefLangs[], PRUint32& aLen, eFontPrefLang aAddLang)
{
if (aLen >= kMaxLenPrefLangList) return;
// make sure
PRUint32 i = 0;
while (i < aLen && aPrefLangs[i] != aAddLang) {
i++;
}
if (i == aLen) {
aPrefLangs[aLen] = aAddLang;
aLen++;
}
}
eCMSMode
gfxPlatform::GetCMSMode()
{
if (gCMSInitialized == PR_FALSE) {
gCMSInitialized = PR_TRUE;
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
PRInt32 mode;
nsresult rv =
prefs->GetIntPref(CMPrefName, &mode);
if (NS_SUCCEEDED(rv) && (mode >= 0) && (mode < eCMSMode_AllCount)) {
gCMSMode = static_cast<eCMSMode>(mode);
}
}
}
return gCMSMode;
}
/* Chris Murphy (CM consultant) suggests this as a default in the event that we
cannot reproduce relative + Black Point Compensation. BPC brings an
unacceptable performance overhead, so we go with perceptual. */
#define INTENT_DEFAULT QCMS_INTENT_PERCEPTUAL
#define INTENT_MIN 0
#define INTENT_MAX 3
PRBool
gfxPlatform::GetRenderingIntent()
{
if (gCMSIntent == -2) {
/* Try to query the pref system for a rendering intent. */
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
PRInt32 pIntent;
nsresult rv = prefs->GetIntPref(CMIntentPrefName, &pIntent);
if (NS_SUCCEEDED(rv)) {
/* If the pref is within range, use it as an override. */
if ((pIntent >= INTENT_MIN) && (pIntent <= INTENT_MAX))
gCMSIntent = pIntent;
/* If the pref is out of range, use embedded profile. */
else
gCMSIntent = -1;
}
}
/* If we didn't get a valid intent from prefs, use the default. */
if (gCMSIntent == -2)
gCMSIntent = INTENT_DEFAULT;
}
return gCMSIntent;
}
void
gfxPlatform::TransformPixel(const gfxRGBA& in, gfxRGBA& out, qcms_transform *transform)
{
if (transform) {
/* we want the bytes in RGB order */
#ifdef IS_LITTLE_ENDIAN
/* ABGR puts the bytes in |RGBA| order on little endian */
PRUint32 packed = in.Packed(gfxRGBA::PACKED_ABGR);
qcms_transform_data(transform,
(PRUint8 *)&packed, (PRUint8 *)&packed,
1);
out.~gfxRGBA();
new (&out) gfxRGBA(packed, gfxRGBA::PACKED_ABGR);
#else
/* ARGB puts the bytes in |ARGB| order on big endian */
PRUint32 packed = in.Packed(gfxRGBA::PACKED_ARGB);
/* add one to move past the alpha byte */
qcms_transform_data(transform,
(PRUint8 *)&packed + 1, (PRUint8 *)&packed + 1,
1);
out.~gfxRGBA();
new (&out) gfxRGBA(packed, gfxRGBA::PACKED_ARGB);
#endif
}
else if (&out != &in)
out = in;
}
qcms_profile *
gfxPlatform::GetPlatformCMSOutputProfile()
{
return nsnull;
}
qcms_profile *
gfxPlatform::GetCMSOutputProfile()
{
if (!gCMSOutputProfile) {
NS_TIME_FUNCTION;
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
nsresult rv;
/* Determine if we're using the internal override to force sRGB as
an output profile for reftests. See Bug 452125. */
PRBool hasSRGBOverride, doSRGBOverride;
rv = prefs->PrefHasUserValue(CMForceSRGBPrefName, &hasSRGBOverride);
if (NS_SUCCEEDED(rv) && hasSRGBOverride) {
rv = prefs->GetBoolPref(CMForceSRGBPrefName, &doSRGBOverride);
if (NS_SUCCEEDED(rv) && doSRGBOverride)
gCMSOutputProfile = GetCMSsRGBProfile();
}
if (!gCMSOutputProfile) {
nsXPIDLCString fname;
rv = prefs->GetCharPref(CMProfilePrefName,
getter_Copies(fname));
if (NS_SUCCEEDED(rv) && !fname.IsEmpty()) {
gCMSOutputProfile = qcms_profile_from_path(fname);
}
}
}
if (!gCMSOutputProfile) {
gCMSOutputProfile =
gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfile();
}
/* Determine if the profile looks bogus. If so, close the profile
* and use sRGB instead. See bug 460629, */
if (gCMSOutputProfile && qcms_profile_is_bogus(gCMSOutputProfile)) {
NS_ASSERTION(gCMSOutputProfile != GetCMSsRGBProfile(),
"Builtin sRGB profile tagged as bogus!!!");
qcms_profile_release(gCMSOutputProfile);
gCMSOutputProfile = nsnull;
}
if (!gCMSOutputProfile) {
gCMSOutputProfile = GetCMSsRGBProfile();
}
/* Precache the LUT16 Interpolations for the output profile. See
bug 444661 for details. */
qcms_profile_precache_output_transform(gCMSOutputProfile);
}
return gCMSOutputProfile;
}
qcms_profile *
gfxPlatform::GetCMSsRGBProfile()
{
if (!gCMSsRGBProfile) {
/* Create the profile using qcms. */
gCMSsRGBProfile = qcms_profile_sRGB();
}
return gCMSsRGBProfile;
}
qcms_transform *
gfxPlatform::GetCMSRGBTransform()
{
if (!gCMSRGBTransform) {
qcms_profile *inProfile, *outProfile;
outProfile = GetCMSOutputProfile();
inProfile = GetCMSsRGBProfile();
if (!inProfile || !outProfile)
return nsnull;
gCMSRGBTransform = qcms_transform_create(inProfile, QCMS_DATA_RGB_8,
outProfile, QCMS_DATA_RGB_8,
QCMS_INTENT_PERCEPTUAL);
}
return gCMSRGBTransform;
}
qcms_transform *
gfxPlatform::GetCMSInverseRGBTransform()
{
if (!gCMSInverseRGBTransform) {
qcms_profile *inProfile, *outProfile;
inProfile = GetCMSOutputProfile();
outProfile = GetCMSsRGBProfile();
if (!inProfile || !outProfile)
return nsnull;
gCMSInverseRGBTransform = qcms_transform_create(inProfile, QCMS_DATA_RGB_8,
outProfile, QCMS_DATA_RGB_8,
QCMS_INTENT_PERCEPTUAL);
}
return gCMSInverseRGBTransform;
}
qcms_transform *
gfxPlatform::GetCMSRGBATransform()
{
if (!gCMSRGBATransform) {
qcms_profile *inProfile, *outProfile;
outProfile = GetCMSOutputProfile();
inProfile = GetCMSsRGBProfile();
if (!inProfile || !outProfile)
return nsnull;
gCMSRGBATransform = qcms_transform_create(inProfile, QCMS_DATA_RGBA_8,
outProfile, QCMS_DATA_RGBA_8,
QCMS_INTENT_PERCEPTUAL);
}
return gCMSRGBATransform;
}
/* Shuts down various transforms and profiles for CMS. */
static void ShutdownCMS()
{
if (gCMSRGBTransform) {
qcms_transform_release(gCMSRGBTransform);
gCMSRGBTransform = nsnull;
}
if (gCMSInverseRGBTransform) {
qcms_transform_release(gCMSInverseRGBTransform);
gCMSInverseRGBTransform = nsnull;
}
if (gCMSRGBATransform) {
qcms_transform_release(gCMSRGBATransform);
gCMSRGBATransform = nsnull;
}
if (gCMSOutputProfile) {
qcms_profile_release(gCMSOutputProfile);
// handle the aliased case
if (gCMSsRGBProfile == gCMSOutputProfile)
gCMSsRGBProfile = nsnull;
gCMSOutputProfile = nsnull;
}
if (gCMSsRGBProfile) {
qcms_profile_release(gCMSsRGBProfile);
gCMSsRGBProfile = nsnull;
}
// Reset the state variables
gCMSIntent = -2;
gCMSMode = eCMSMode_Off;
gCMSInitialized = PR_FALSE;
}
static void MigratePrefs()
{
/* Load the pref service. If we don't get it die quietly since this isn't
critical code. */
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (!prefs)
return;
/* Migrate from the boolean color_management.enabled pref - we now use
color_management.mode. */
PRBool hasOldCMPref;
nsresult rv =
prefs->PrefHasUserValue(CMPrefNameOld, &hasOldCMPref);
if (NS_SUCCEEDED(rv) && (hasOldCMPref == PR_TRUE)) {
PRBool CMWasEnabled;
rv = prefs->GetBoolPref(CMPrefNameOld, &CMWasEnabled);
if (NS_SUCCEEDED(rv) && (CMWasEnabled == PR_TRUE))
prefs->SetIntPref(CMPrefName, eCMSMode_All);
prefs->ClearUserPref(CMPrefNameOld);
}
}
// default SetupClusterBoundaries, based on Unicode properties;
// platform subclasses may override if they wish
static nsIUGenCategory* gGenCategory = nsnull;
static nsIUGenCategory*
GetGenCategory()
{
if (!gGenCategory) {
nsresult rv = CallGetService(NS_UNICHARCATEGORY_CONTRACTID, &gGenCategory);
if (NS_FAILED(rv)) {
NS_ERROR("Failed to get the Unicode character category service!");
gGenCategory = nsnull;
}
}
return gGenCategory;
}
void
gfxPlatform::SetupClusterBoundaries(gfxTextRun *aTextRun, const PRUnichar *aString)
{
if (aTextRun->GetFlags() & gfxTextRunFactory::TEXT_IS_8BIT) {
// 8-bit text doesn't have clusters.
// XXX is this true in all languages???
// behdad: don't think so. Czech for example IIRC has a
// 'ch' grapheme.
return;
}
nsIUGenCategory* gc = GetGenCategory();
if (!gc) {
NS_WARNING("No Unicode category service: cannot determine clusters");
return;
}
PRUint32 i, length = aTextRun->GetLength();
for (i = 0; i < length; ++i) {
PRBool surrogatePair = PR_FALSE;
PRUint32 ch = aString[i];
if (NS_IS_HIGH_SURROGATE(ch) &&
i < length - 1 && NS_IS_LOW_SURROGATE(aString[i+1])) {
ch = SURROGATE_TO_UCS4(ch, aString[i+1]);
surrogatePair = PR_TRUE;
}
if (i > 0 && gc->Get(ch) == nsIUGenCategory::kMark) {
gfxTextRun::CompressedGlyph g;
aTextRun->SetGlyphs(i, g.SetComplex(PR_FALSE, PR_TRUE, 0), nsnull);
}
if (surrogatePair) {
++i;
gfxTextRun::CompressedGlyph g;
aTextRun->SetGlyphs(i, g.SetComplex(PR_FALSE, PR_TRUE, 0), nsnull);
}
}
}
void
gfxPlatform::FontsPrefsChanged(nsIPrefBranch *aPrefBranch, const char *aPref)
{
NS_ASSERTION(aPref != nsnull, "null preference");
if (!strcmp(GFX_DOWNLOADABLE_FONTS_ENABLED, aPref)) {
mAllowDownloadableFonts = UNINITIALIZED_VALUE;
} else if (!strcmp(GFX_PREF_HARFBUZZ_LEVEL, aPref)) {
mUseHarfBuzzLevel = UNINITIALIZED_VALUE;
gfxTextRunWordCache::Flush();
gfxFontCache::GetCache()->AgeAllGenerations();
}
}
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