/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * 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/. */ #ifdef MOZ_LOGGING #define FORCE_PR_LOG /* Allow logging in the release build */ #endif #include "prlog.h" #include "gfxPlatform.h" #if defined(XP_WIN) #include "gfxWindowsPlatform.h" #include "gfxD2DSurface.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_OS2) #include "gfxOS2Platform.h" #elif defined(ANDROID) #include "gfxAndroidPlatform.h" #endif #include "nsGkAtoms.h" #include "gfxPlatformFontList.h" #include "gfxContext.h" #include "gfxImageSurface.h" #include "gfxUserFontSet.h" #include "nsUnicodeProperties.h" #include "harfbuzz/hb.h" #ifdef MOZ_GRAPHITE #include "gfxGraphiteShaper.h" #endif #include "nsUnicodeRange.h" #include "nsServiceManagerUtils.h" #include "nsTArray.h" #include "nsUnicharUtilCIID.h" #include "nsILocaleService.h" #include "nsWeakReference.h" #include "cairo.h" #include "qcms.h" #include "plstr.h" #include "nsCRT.h" #include "GLContext.h" #include "GLContextProvider.h" #include "mozilla/FunctionTimer.h" #include "mozilla/Preferences.h" #include "mozilla/Assertions.h" #include "nsIGfxInfo.h" using namespace mozilla; gfxPlatform *gPlatform = nsnull; static bool gEverInitialized = false; // 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 bool gCMSInitialized = false; static eCMSMode gCMSMode = eCMSMode_Off; static int gCMSIntent = -2; static void ShutdownCMS(); static void MigratePrefs(); #include "mozilla/gfx/2D.h" using namespace mozilla::gfx; // logs shared across gfx #ifdef PR_LOGGING static PRLogModuleInfo *sFontlistLog = nsnull; static PRLogModuleInfo *sFontInitLog = nsnull; static PRLogModuleInfo *sTextrunLog = nsnull; static PRLogModuleInfo *sTextrunuiLog = nsnull; static PRLogModuleInfo *sCmapDataLog = nsnull; #endif /* 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_DOWNLOADABLE_FONTS_SANITIZE "gfx.downloadable_fonts.sanitize" #define GFX_PREF_HARFBUZZ_SCRIPTS "gfx.font_rendering.harfbuzz.scripts" #define HARFBUZZ_SCRIPTS_DEFAULT mozilla::unicode::SHAPING_DEFAULT #define GFX_PREF_FALLBACK_USE_CMAPS "gfx.font_rendering.fallback.always_use_cmaps" #ifdef MOZ_GRAPHITE #define GFX_PREF_GRAPHITE_SHAPING "gfx.font_rendering.graphite.enabled" #endif #define BIDI_NUMERAL_PREF "bidi.numeral" static const char* kObservedPrefs[] = { "gfx.downloadable_fonts.", "gfx.font_rendering.", "bidi.numeral", nsnull }; 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) { if (!someData) { NS_ERROR("font pref observer code broken"); return NS_ERROR_UNEXPECTED; } NS_ASSERTION(gfxPlatform::GetPlatform(), "the singleton instance has gone"); gfxPlatform::GetPlatform()->FontsPrefsChanged(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() : mAzureBackendCollector(this, &gfxPlatform::GetAzureBackendInfo) { mUseHarfBuzzScripts = UNINITIALIZED_VALUE; mAllowDownloadableFonts = UNINITIALIZED_VALUE; mDownloadableFontsSanitize = UNINITIALIZED_VALUE; mFallbackUsesCmaps = UNINITIALIZED_VALUE; #ifdef MOZ_GRAPHITE mGraphiteShapingEnabled = UNINITIALIZED_VALUE; #endif mBidiNumeralOption = UNINITIALIZED_VALUE; if (Preferences::GetBool("gfx.canvas.azure.prefer-skia", false)) { mPreferredDrawTargetBackend = BACKEND_SKIA; } else { mPreferredDrawTargetBackend = BACKEND_NONE; } } gfxPlatform* gfxPlatform::GetPlatform() { if (!gPlatform) { Init(); } return gPlatform; } void gfxPlatform::Init() { if (gEverInitialized) { NS_RUNTIMEABORT("Already started???"); } gEverInitialized = true; #ifdef PR_LOGGING sFontlistLog = PR_NewLogModule("fontlist");; sFontInitLog = PR_NewLogModule("fontinit");; sTextrunLog = PR_NewLogModule("textrun");; sTextrunuiLog = PR_NewLogModule("textrunui");; sCmapDataLog = PR_NewLogModule("cmapdata");; #endif /* 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 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_OS2) gPlatform = new gfxOS2Platform; #elif defined(ANDROID) gPlatform = new gfxAndroidPlatform; #else #error "No gfxPlatform implementation available" #endif #ifdef DEBUG mozilla::gl::GLContext::StaticInit(); #endif 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_RUNTIMEABORT("Could not initialize gfxPlatformFontList"); } #endif gPlatform->mScreenReferenceSurface = gPlatform->CreateOffscreenSurface(gfxIntSize(1,1), gfxASurface::CONTENT_COLOR_ALPHA); if (!gPlatform->mScreenReferenceSurface) { NS_RUNTIMEABORT("Could not initialize mScreenReferenceSurface"); } rv = gfxFontCache::Init(); if (NS_FAILED(rv)) { NS_RUNTIMEABORT("Could not initialize gfxFontCache"); } /* Pref migration hook. */ MigratePrefs(); /* Create and register our CMS Override observer. */ gPlatform->mSRGBOverrideObserver = new SRGBOverrideObserver(); Preferences::AddWeakObserver(gPlatform->mSRGBOverrideObserver, "gfx.color_management.force_srgb"); gPlatform->mFontPrefsObserver = new FontPrefsObserver(); Preferences::AddStrongObservers(gPlatform->mFontPrefsObserver, kObservedPrefs); gPlatform->mWorkAroundDriverBugs = Preferences::GetBool("gfx.work-around-driver-bugs", true); // Force registration of the gfx component, thus arranging for // ::Shutdown to be called. nsCOMPtr forceReg = do_CreateInstance("@mozilla.org/gfx/init;1"); } void gfxPlatform::Shutdown() { // These may be called before the corresponding subsystems have actually // started up. That's OK, they can handle it. gfxFontCache::Shutdown(); gfxFontGroup::Shutdown(); #ifdef MOZ_GRAPHITE gfxGraphiteShaper::Shutdown(); #endif #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(); // In some cases, gPlatform may not be created but Shutdown() called, // e.g., during xpcshell tests. if (gPlatform) { /* Unregister our CMS Override callback. */ NS_ASSERTION(gPlatform->mSRGBOverrideObserver, "mSRGBOverrideObserver has alreay gone"); Preferences::RemoveObserver(gPlatform->mSRGBOverrideObserver, "gfx.color_management.force_srgb"); gPlatform->mSRGBOverrideObserver = nsnull; NS_ASSERTION(gPlatform->mFontPrefsObserver, "mFontPrefsObserver has alreay gone"); Preferences::RemoveObservers(gPlatform->mFontPrefsObserver, kObservedPrefs); gPlatform->mFontPrefsObserver = nsnull; } // Shut down the default GL context provider. mozilla::gl::GLContextProvider::Shutdown(); // We always have OSMesa at least potentially available; shut it down too. mozilla::gl::GLContextProviderOSMesa::Shutdown(); #if defined(XP_WIN) // The above shutdown calls operate on the available context providers on // most platforms. Windows is a "special snowflake", though, and has three // context providers available, so we have to shut all of them down. // We should only support the default GL provider on Windows; then, this // could go away. Unfortunately, we currently support WGL (the default) for // WebGL on Optimus. mozilla::gl::GLContextProviderEGL::Shutdown(); #endif delete gPlatform; gPlatform = nsnull; } gfxPlatform::~gfxPlatform() { mScreenReferenceSurface = nsnull; // 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 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 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; } cairo_user_data_key_t kDrawTarget; RefPtr gfxPlatform::CreateDrawTargetForSurface(gfxASurface *aSurface) { RefPtr drawTarget = Factory::CreateDrawTargetForCairoSurface(aSurface->CairoSurface()); aSurface->SetData(&kDrawTarget, drawTarget, NULL); return drawTarget; } cairo_user_data_key_t kSourceSurface; void SourceBufferDestroy(void *srcBuffer) { static_cast(srcBuffer)->Release(); } void SourceSnapshotDetached(cairo_surface_t *nullSurf) { gfxImageSurface* origSurf = static_cast(cairo_surface_get_user_data(nullSurf, &kSourceSurface)); origSurf->SetData(&kSourceSurface, NULL, NULL); } RefPtr gfxPlatform::GetSourceSurfaceForSurface(DrawTarget *aTarget, gfxASurface *aSurface) { void *userData = aSurface->GetData(&kSourceSurface); if (userData) { return static_cast(userData); } SurfaceFormat format; if (aSurface->GetContentType() == gfxASurface::CONTENT_ALPHA) { format = FORMAT_A8; } else if (aSurface->GetContentType() == gfxASurface::CONTENT_COLOR) { format = FORMAT_B8G8R8X8; } else { format = FORMAT_B8G8R8A8; } RefPtr srcBuffer; #ifdef XP_WIN if (aSurface->GetType() == gfxASurface::SurfaceTypeD2D) { NativeSurface surf; surf.mFormat = format; surf.mType = NATIVE_SURFACE_D3D10_TEXTURE; surf.mSurface = static_cast(aSurface)->GetTexture(); mozilla::gfx::DrawTarget *dt = static_cast(aSurface->GetData(&kDrawTarget)); if (dt) { dt->Flush(); } srcBuffer = aTarget->CreateSourceSurfaceFromNativeSurface(surf); } #endif if (!srcBuffer) { nsRefPtr imgSurface = aSurface->GetAsImageSurface(); bool isWin32ImageSurf = false; if (imgSurface && aSurface->GetType() != gfxASurface::SurfaceTypeWin32) { isWin32ImageSurf = true; } if (!imgSurface) { imgSurface = new gfxImageSurface(aSurface->GetSize(), OptimalFormatForContent(aSurface->GetContentType())); nsRefPtr ctx = new gfxContext(imgSurface); ctx->SetSource(aSurface); ctx->SetOperator(gfxContext::OPERATOR_SOURCE); ctx->Paint(); } gfxImageFormat cairoFormat = imgSurface->Format(); switch(cairoFormat) { case gfxASurface::ImageFormatARGB32: format = FORMAT_B8G8R8A8; break; case gfxASurface::ImageFormatRGB24: format = FORMAT_B8G8R8X8; break; case gfxASurface::ImageFormatA8: format = FORMAT_A8; break; case gfxASurface::ImageFormatRGB16_565: format = FORMAT_R5G6B5; break; default: NS_RUNTIMEABORT("Invalid surface format!"); } IntSize size = IntSize(imgSurface->GetSize().width, imgSurface->GetSize().height); srcBuffer = aTarget->CreateSourceSurfaceFromData(imgSurface->Data(), size, imgSurface->Stride(), format); if (!srcBuffer) { // We need to check if our gfxASurface will keep the underlying data // alive! This is true if gfxASurface actually -is- an ImageSurface or // if it is a gfxWindowsSurface which supportes GetAsImageSurface. if (imgSurface != aSurface && !isWin32ImageSurf) { // This shouldn't happen for now, it can be easily supported by making // a copy. For now let's just abort. NS_RUNTIMEABORT("Attempt to create unsupported SourceSurface from" "non-image surface."); return nsnull; } srcBuffer = Factory::CreateWrappingDataSourceSurface(imgSurface->Data(), imgSurface->Stride(), size, format); } cairo_surface_t *nullSurf = cairo_null_surface_create(CAIRO_CONTENT_COLOR_ALPHA); cairo_surface_set_user_data(nullSurf, &kSourceSurface, imgSurface, NULL); cairo_surface_attach_snapshot(imgSurface->CairoSurface(), nullSurf, SourceSnapshotDetached); cairo_surface_destroy(nullSurf); } srcBuffer->AddRef(); aSurface->SetData(&kSourceSurface, srcBuffer, SourceBufferDestroy); return srcBuffer; } RefPtr gfxPlatform::GetScaledFontForFont(gfxFont *aFont) { NativeFont nativeFont; nativeFont.mType = NATIVE_FONT_CAIRO_FONT_FACE; nativeFont.mFont = aFont; RefPtr scaledFont = Factory::CreateScaledFontForNativeFont(nativeFont, aFont->GetAdjustedSize()); return scaledFont; } UserDataKey kThebesSurfaceKey; void DestroyThebesSurface(void *data) { gfxASurface *surface = static_cast(data); surface->Release(); } already_AddRefed gfxPlatform::GetThebesSurfaceForDrawTarget(DrawTarget *aTarget) { // If we have already created a thebes surface, we can just return it. void *surface = aTarget->GetUserData(&kThebesSurfaceKey); if (surface) { nsRefPtr surf = static_cast(surface); return surf.forget(); } nsRefPtr surf; if (aTarget->GetType() == BACKEND_CAIRO) { cairo_surface_t* csurf = static_cast(aTarget->GetNativeSurface(NATIVE_SURFACE_CAIRO_SURFACE)); surf = gfxASurface::Wrap(csurf); } else { // The semantics of this part of the function are sort of weird. If we // don't have direct support for the backend, we snapshot the first time // and then return the snapshotted surface for the lifetime of the draw // target. Sometimes it seems like this works out, but it seems like it // might result in no updates ever. RefPtr source = aTarget->Snapshot(); RefPtr data = source->GetDataSurface(); if (!data) { return NULL; } IntSize size = data->GetSize(); gfxASurface::gfxImageFormat format = OptimalFormatForContent(ContentForFormat(data->GetFormat())); // We need to make a copy here because data might change its data under us nsRefPtr imageSurf = new gfxImageSurface(gfxIntSize(size.width, size.height), format, false); bool resultOfCopy = imageSurf->CopyFrom(source); NS_ASSERTION(resultOfCopy, "Failed to copy surface."); surf = imageSurf; } // add a reference to be held by the drawTarget // careful, the reference graph is getting complicated here surf->AddRef(); aTarget->AddUserData(&kThebesSurfaceKey, surf.get(), DestroyThebesSurface); return surf.forget(); } RefPtr gfxPlatform::CreateOffscreenDrawTarget(const IntSize& aSize, SurfaceFormat aFormat) { BackendType backend; if (!SupportsAzure(backend)) { return NULL; } // There is a bunch of knowledge in the gfxPlatform heirarchy about how to // create the best offscreen surface for the current system and situation. We // can easily take advantage of this for the Cairo backend, so that's what we // do. // mozilla::gfx::Factory can get away without having all this knowledge for // now, but this might need to change in the future (using // CreateOffscreenSurface() and CreateDrawTargetForSurface() for all // backends). if (backend == BACKEND_CAIRO) { nsRefPtr surf = CreateOffscreenSurface(ThebesIntSize(aSize), ContentForFormat(aFormat)); return CreateDrawTargetForSurface(surf); } else { return Factory::CreateDrawTarget(backend, aSize, aFormat); } } RefPtr gfxPlatform::CreateDrawTargetForData(unsigned char* aData, const IntSize& aSize, int32_t aStride, SurfaceFormat aFormat) { BackendType backend; if (!SupportsAzure(backend)) { return NULL; } return Factory::CreateDrawTargetForData(backend, aData, aSize, aStride, aFormat); } nsresult gfxPlatform::GetFontList(nsIAtom *aLangGroup, const nsACString& aGenericFamily, nsTArray& aListOfFonts) { return NS_ERROR_NOT_IMPLEMENTED; } nsresult gfxPlatform::UpdateFontList() { return NS_ERROR_NOT_IMPLEMENTED; } bool gfxPlatform::DownloadableFontsEnabled() { if (mAllowDownloadableFonts == UNINITIALIZED_VALUE) { mAllowDownloadableFonts = Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_ENABLED, false); } return mAllowDownloadableFonts; } bool gfxPlatform::SanitizeDownloadedFonts() { if (mDownloadableFontsSanitize == UNINITIALIZED_VALUE) { mDownloadableFontsSanitize = Preferences::GetBool(GFX_DOWNLOADABLE_FONTS_SANITIZE, true); } return mDownloadableFontsSanitize; } bool gfxPlatform::UseCmapsDuringSystemFallback() { if (mFallbackUsesCmaps == UNINITIALIZED_VALUE) { mFallbackUsesCmaps = Preferences::GetBool(GFX_PREF_FALLBACK_USE_CMAPS, false); } return mFallbackUsesCmaps; } #ifdef MOZ_GRAPHITE bool gfxPlatform::UseGraphiteShaping() { if (mGraphiteShapingEnabled == UNINITIALIZED_VALUE) { mGraphiteShapingEnabled = Preferences::GetBool(GFX_PREF_GRAPHITE_SHAPING, false); } return mGraphiteShapingEnabled; } #endif bool gfxPlatform::UseHarfBuzzForScript(PRInt32 aScriptCode) { if (mUseHarfBuzzScripts == UNINITIALIZED_VALUE) { mUseHarfBuzzScripts = Preferences::GetInt(GFX_PREF_HARFBUZZ_SCRIPTS, HARFBUZZ_SCRIPTS_DEFAULT); } PRInt32 shapingType = mozilla::unicode::ScriptShapingType(aScriptCode); return (mUseHarfBuzzScripts & shapingType) != 0; } 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) { NS_ENSURE_TRUE(Preferences::GetRootBranch(), ); nsCAutoString prefName, langGroupString; aLangGroup->ToUTF8String(langGroupString); nsCAutoString genericDotLang; if (aGenericName) { genericDotLang.Assign(aGenericName); } else { prefName.AssignLiteral("font.default."); prefName.Append(langGroupString); genericDotLang = Preferences::GetCString(prefName.get()); } genericDotLang.AppendLiteral("."); genericDotLang.Append(langGroupString); // fetch font.name.xxx value prefName.AssignLiteral("font.name."); prefName.Append(genericDotLang); nsAdoptingString nameValue = Preferences::GetString(prefName.get()); if (nameValue) { if (!aFonts.IsEmpty()) aFonts.AppendLiteral(", "); aFonts += nameValue; } // fetch font.name-list.xxx value prefName.AssignLiteral("font.name-list."); prefName.Append(genericDotLang); nsAdoptingString nameListValue = Preferences::GetString(prefName.get()); if (nameListValue && !nameListValue.Equals(nameValue)) { if (!aFonts.IsEmpty()) aFonts.AppendLiteral(", "); aFonts += nameListValue; } } void gfxPlatform::GetPrefFonts(nsIAtom *aLanguage, nsString& aFonts, bool aAppendUnicode) { aFonts.Truncate(); AppendGenericFontFromPref(aFonts, aLanguage, nsnull); if (aAppendUnicode) AppendGenericFontFromPref(aFonts, nsGkAtoms::Unicode, nsnull); } bool gfxPlatform::ForEachPrefFont(eFontPrefLang aLangArray[], PRUint32 aLangArrayLen, PrefFontCallback aCallback, void *aClosure) { NS_ENSURE_TRUE(Preferences::GetRootBranch(), false); PRUint32 i; for (i = 0; i < aLangArrayLen; i++) { eFontPrefLang prefLang = aLangArray[i]; const char *langGroup = GetPrefLangName(prefLang); nsCAutoString prefName; prefName.AssignLiteral("font.default."); prefName.Append(langGroup); nsAdoptingCString genericDotLang = Preferences::GetCString(prefName.get()); genericDotLang.AppendLiteral("."); genericDotLang.Append(langGroup); // fetch font.name.xxx value prefName.AssignLiteral("font.name."); prefName.Append(genericDotLang); nsAdoptingCString nameValue = Preferences::GetCString(prefName.get()); if (nameValue) { if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(nameValue), aClosure)) return false; } // fetch font.name-list.xxx value prefName.AssignLiteral("font.name-list."); prefName.Append(genericDotLang); nsAdoptingCString nameListValue = Preferences::GetCString(prefName.get()); if (nameListValue && !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(false, true); if (!aCallback(prefLang, NS_ConvertUTF8toUTF16(fontName), aClosure)) return false; p++; } } } return 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 kRangeOriya: return eFontPrefLang_Oriya; case kRangeTelugu: return eFontPrefLang_Telugu; case kRangeKannada: return eFontPrefLang_Kannada; case kRangeSinhala: return eFontPrefLang_Sinhala; case kRangeTibetan: return eFontPrefLang_Tibetan; case kRangeSetCJK: return eFontPrefLang_CJKSet; default: return eFontPrefLang_Others; } } bool 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 true; default: return 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) { // 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 nsAdoptingCString list = Preferences::GetLocalizedCString("intl.accept_languages"); 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(false, 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 ls = do_GetService(NS_LOCALESERVICE_CONTRACTID, &rv); if (NS_FAILED(rv)) break; nsCOMPtr 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++; } } bool gfxPlatform::UseAzureContentDrawing() { static bool sAzureContentDrawingEnabled; static bool sAzureContentDrawingPrefCached = false; if (!sAzureContentDrawingPrefCached) { sAzureContentDrawingPrefCached = true; mozilla::Preferences::AddBoolVarCache(&sAzureContentDrawingEnabled, "gfx.content.azure.enabled"); } return sAzureContentDrawingEnabled; } eCMSMode gfxPlatform::GetCMSMode() { if (gCMSInitialized == false) { gCMSInitialized = true; nsresult rv; PRInt32 mode; rv = Preferences::GetInt("gfx.color_management.mode", &mode); if (NS_SUCCEEDED(rv) && (mode >= 0) && (mode < eCMSMode_AllCount)) { gCMSMode = static_cast(mode); } bool enableV4; rv = Preferences::GetBool("gfx.color_management.enablev4", &enableV4); if (NS_SUCCEEDED(rv) && enableV4) { qcms_enable_iccv4(); } } 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 int gfxPlatform::GetRenderingIntent() { if (gCMSIntent == -2) { /* Try to query the pref system for a rendering intent. */ PRInt32 pIntent; if (NS_SUCCEEDED(Preferences::GetInt("gfx.color_management.rendering_intent", &pIntent))) { /* 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. */ else { 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; /* Determine if we're using the internal override to force sRGB as an output profile for reftests. See Bug 452125. Note that we don't normally (outside of tests) set a default value of this preference, which means nsIPrefBranch::GetBoolPref will typically throw (and leave its out-param untouched). */ if (Preferences::GetBool("gfx.color_management.force_srgb", false)) { gCMSOutputProfile = GetCMSsRGBProfile(); } if (!gCMSOutputProfile) { nsAdoptingCString fname = Preferences::GetCString("gfx.color_management.display_profile"); if (!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 = false; } static void MigratePrefs() { /* Migrate from the boolean color_management.enabled pref - we now use color_management.mode. */ if (Preferences::HasUserValue("gfx.color_management.enabled")) { if (Preferences::GetBool("gfx.color_management.enabled", false)) { Preferences::SetInt("gfx.color_management.mode", static_cast(eCMSMode_All)); } Preferences::ClearUser("gfx.color_management.enabled"); } } // default SetupClusterBoundaries, based on Unicode properties; // platform subclasses may override if they wish 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. // jfkthame: but that's not expected to behave as a grapheme cluster // for selection/editing/etc. return; } gfxShapedWord::SetupClusterBoundaries(aTextRun->GetCharacterGlyphs(), aString, aTextRun->GetLength()); } PRInt32 gfxPlatform::GetBidiNumeralOption() { if (mBidiNumeralOption == UNINITIALIZED_VALUE) { mBidiNumeralOption = Preferences::GetInt(BIDI_NUMERAL_PREF, 0); } return mBidiNumeralOption; } void gfxPlatform::FontsPrefsChanged(const char *aPref) { NS_ASSERTION(aPref != nsnull, "null preference"); if (!strcmp(GFX_DOWNLOADABLE_FONTS_ENABLED, aPref)) { mAllowDownloadableFonts = UNINITIALIZED_VALUE; } else if (!strcmp(GFX_DOWNLOADABLE_FONTS_SANITIZE, aPref)) { mDownloadableFontsSanitize = UNINITIALIZED_VALUE; } else if (!strcmp(GFX_PREF_FALLBACK_USE_CMAPS, aPref)) { mFallbackUsesCmaps = UNINITIALIZED_VALUE; #ifdef MOZ_GRAPHITE } else if (!strcmp(GFX_PREF_GRAPHITE_SHAPING, aPref)) { mGraphiteShapingEnabled = UNINITIALIZED_VALUE; gfxFontCache *fontCache = gfxFontCache::GetCache(); if (fontCache) { fontCache->AgeAllGenerations(); fontCache->FlushShapedWordCaches(); } #endif } else if (!strcmp(GFX_PREF_HARFBUZZ_SCRIPTS, aPref)) { mUseHarfBuzzScripts = UNINITIALIZED_VALUE; gfxFontCache *fontCache = gfxFontCache::GetCache(); if (fontCache) { fontCache->AgeAllGenerations(); fontCache->FlushShapedWordCaches(); } } else if (!strcmp(BIDI_NUMERAL_PREF, aPref)) { mBidiNumeralOption = UNINITIALIZED_VALUE; } } PRLogModuleInfo* gfxPlatform::GetLog(eGfxLog aWhichLog) { #ifdef PR_LOGGING switch (aWhichLog) { case eGfxLog_fontlist: return sFontlistLog; break; case eGfxLog_fontinit: return sFontInitLog; break; case eGfxLog_textrun: return sTextrunLog; break; case eGfxLog_textrunui: return sTextrunuiLog; break; case eGfxLog_cmapdata: return sCmapDataLog; break; default: break; } return nsnull; #else return nsnull; #endif } int gfxPlatform::GetScreenDepth() const { MOZ_ASSERT(false, "Not implemented on this platform"); return 0; } mozilla::gfx::SurfaceFormat gfxPlatform::Optimal2DFormatForContent(gfxASurface::gfxContentType aContent) { switch (aContent) { case gfxASurface::CONTENT_COLOR: return mozilla::gfx::FORMAT_B8G8R8X8; case gfxASurface::CONTENT_ALPHA: return mozilla::gfx::FORMAT_A8; case gfxASurface::CONTENT_COLOR_ALPHA: return mozilla::gfx::FORMAT_B8G8R8A8; default: NS_NOTREACHED("unknown gfxContentType"); return mozilla::gfx::FORMAT_B8G8R8A8; } } gfxImageFormat gfxPlatform::OptimalFormatForContent(gfxASurface::gfxContentType aContent) { switch (aContent) { case gfxASurface::CONTENT_COLOR: return GetOffscreenFormat(); case gfxASurface::CONTENT_ALPHA: return gfxASurface::ImageFormatA8; case gfxASurface::CONTENT_COLOR_ALPHA: return gfxASurface::ImageFormatARGB32; default: NS_NOTREACHED("unknown gfxContentType"); return gfxASurface::ImageFormatARGB32; } }