| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/renderer/renderer_main_platform_delegate.h" |
| |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/strings/string16.h" |
| #include "base/win/scoped_comptr.h" |
| #include "base/win/win_util.h" |
| #include "base/win/windows_version.h" |
| #include "content/common/sandbox_win.h" |
| #include "content/public/common/content_switches.h" |
| #include "content/public/common/injection_test_win.h" |
| #include "content/public/renderer/render_font_warmup_win.h" |
| #include "content/public/renderer/render_thread.h" |
| #include "content/renderer/render_thread_impl.h" |
| #include "sandbox/win/src/sandbox.h" |
| #include "skia/ext/fontmgr_default_win.h" |
| #include "skia/ext/vector_platform_device_emf_win.h" |
| #include "third_party/WebKit/public/web/WebRuntimeFeatures.h" |
| #include "third_party/WebKit/public/web/win/WebFontRendering.h" |
| #include "third_party/icu/source/i18n/unicode/timezone.h" |
| #include "third_party/skia/include/ports/SkFontMgr.h" |
| #include "third_party/skia/include/ports/SkTypeface_win.h" |
| |
| #ifdef ENABLE_VTUNE_JIT_INTERFACE |
| #include "v8/src/third_party/vtune/v8-vtune.h" |
| #endif |
| |
| #include <dwrite.h> |
| |
| namespace content { |
| namespace { |
| |
| // Windows-only skia sandbox support |
| // These are used for GDI-path rendering. |
| void SkiaPreCacheFont(const LOGFONT& logfont) { |
| RenderThread* render_thread = RenderThread::Get(); |
| if (render_thread) { |
| render_thread->PreCacheFont(logfont); |
| } |
| } |
| |
| void SkiaPreCacheFontCharacters(const LOGFONT& logfont, |
| const wchar_t* text, |
| unsigned int text_length) { |
| RenderThreadImpl* render_thread_impl = RenderThreadImpl::current(); |
| if (render_thread_impl) { |
| render_thread_impl->PreCacheFontCharacters( |
| logfont, |
| base::string16(text, text_length)); |
| } |
| } |
| |
| void WarmupDirectWrite() { |
| // The objects used here are intentionally not freed as we want the Skia |
| // code to use these objects after warmup. |
| SkTypeface* typeface = |
| GetPreSandboxWarmupFontMgr()->legacyCreateTypeface("Times New Roman", 0); |
| DoPreSandboxWarmupForTypeface(typeface); |
| SetDefaultSkiaFactory(GetPreSandboxWarmupFontMgr()); |
| } |
| |
| } // namespace |
| |
| RendererMainPlatformDelegate::RendererMainPlatformDelegate( |
| const MainFunctionParams& parameters) |
| : parameters_(parameters), |
| sandbox_test_module_(NULL) { |
| } |
| |
| RendererMainPlatformDelegate::~RendererMainPlatformDelegate() { |
| } |
| |
| void RendererMainPlatformDelegate::PlatformInitialize() { |
| const CommandLine& command_line = parameters_.command_line; |
| |
| #ifdef ENABLE_VTUNE_JIT_INTERFACE |
| if (command_line.HasSwitch(switches::kEnableVtune)) |
| vTune::InitializeVtuneForV8(); |
| #endif |
| |
| // Be mindful of what resources you acquire here. They can be used by |
| // malicious code if the renderer gets compromised. |
| bool no_sandbox = command_line.HasSwitch(switches::kNoSandbox); |
| |
| bool use_direct_write = ShouldUseDirectWrite(); |
| if (!no_sandbox) { |
| // ICU DateFormat class (used in base/time_format.cc) needs to get the |
| // Olson timezone ID by accessing the registry keys under |
| // HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones. |
| // After TimeZone::createDefault is called once here, the timezone ID is |
| // cached and there's no more need to access the registry. If the sandbox |
| // is disabled, we don't have to make this dummy call. |
| scoped_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault()); |
| |
| if (use_direct_write) { |
| WarmupDirectWrite(); |
| } else { |
| SkTypeface_SetEnsureLOGFONTAccessibleProc(SkiaPreCacheFont); |
| skia::SetSkiaEnsureTypefaceCharactersAccessible( |
| SkiaPreCacheFontCharacters); |
| } |
| } |
| blink::WebFontRendering::setUseDirectWrite(use_direct_write); |
| if (use_direct_write) { |
| blink::WebRuntimeFeatures::enableSubpixelFontScaling(true); |
| } |
| } |
| |
| void RendererMainPlatformDelegate::PlatformUninitialize() { |
| } |
| |
| bool RendererMainPlatformDelegate::EnableSandbox() { |
| sandbox::TargetServices* target_services = |
| parameters_.sandbox_info->target_services; |
| |
| if (target_services) { |
| // Cause advapi32 to load before the sandbox is turned on. |
| unsigned int dummy_rand; |
| rand_s(&dummy_rand); |
| // Warm up language subsystems before the sandbox is turned on. |
| ::GetUserDefaultLangID(); |
| ::GetUserDefaultLCID(); |
| |
| target_services->LowerToken(); |
| return true; |
| } |
| return false; |
| } |
| |
| } // namespace content |