content/child/dwrite_font_proxy/dwrite_font_proxy_init_win.cc - Issue 1514183002: Revert "Create direct write font proxy classes and unit tests."

Side by Side Diff: content/child/dwrite_font_proxy/dwrite_font_proxy_init_win.cc

Issue 1514183002: Revert "Create direct write font proxy classes and unit tests." (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 5 years ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View unified diff | Download patch

OLD	NEW
	(Empty)
1 // Copyright 2015 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.

4

5 #include "content/child/dwrite_font_proxy/dwrite_font_proxy_init_win.h"

6

7 #include <dwrite.h>

8

9 #include "base/bind.h"

10 #include "base/callback.h"

11 #include "base/debug/alias.h"

12 #include "base/win/iat_patch_function.h"

13 #include "base/win/windows_version.h"

14 #include "content/child/dwrite_font_proxy/dwrite_font_proxy_win.h"

15 #include "content/common/font_warmup_win.h"

16 #include "skia/ext/fontmgr_default_win.h"

17 #include "third_party/WebKit/public/web/win/WebFontRendering.h"

18 #include "third_party/skia/include/ports/SkTypeface_win.h"

19

20 namespace mswr = Microsoft::WRL;

21

22 namespace content {

23

24 namespace {

25

26 mswr::ComPtr<DWriteFontCollectionProxy> g_font_collection;

27 IPC::Sender* g_sender_override = nullptr;

28

29 // Windows-only DirectWrite support. These warm up the DirectWrite paths

30 // before sandbox lock down to allow Skia access to the Font Manager service.

31 void CreateDirectWriteFactory(IDWriteFactory** factory) {

32 typedef decltype(DWriteCreateFactory)* DWriteCreateFactoryProc;

33 HMODULE dwrite_dll = LoadLibraryW(L"dwrite.dll");

34 // TODO(scottmg): Temporary code to track crash in http://crbug.com/387867.

35 if (!dwrite_dll) {

36 DWORD load_library_get_last_error = GetLastError();

37 base::debug::Alias(&dwrite_dll);

38 base::debug::Alias(&load_library_get_last_error);

39 CHECK(false);

40 }

41

42 // This shouldn't be necessary, but not having this causes breakage in

43 // content_browsertests, and possibly other high-stress cases.

44 PatchServiceManagerCalls();

45

46 DWriteCreateFactoryProc dwrite_create_factory_proc =

47 reinterpret_cast<DWriteCreateFactoryProc>(

48 GetProcAddress(dwrite_dll, "DWriteCreateFactory"));

49 // TODO(scottmg): Temporary code to track crash in http://crbug.com/387867.

50 if (!dwrite_create_factory_proc) {

51 DWORD get_proc_address_get_last_error = GetLastError();

52 base::debug::Alias(&dwrite_create_factory_proc);

53 base::debug::Alias(&get_proc_address_get_last_error);

54 CHECK(false);

55 }

56 CHECK(SUCCEEDED(dwrite_create_factory_proc(

57 DWRITE_FACTORY_TYPE_ISOLATED, __uuidof(IDWriteFactory),

58 reinterpret_cast<IUnknown**>(factory))));

59 }

60

61 HRESULT STDMETHODCALLTYPE StubFontCollection(IDWriteFactory* factory,

62 IDWriteFontCollection** col,

63 BOOL checkUpdates) {

64 DCHECK(g_font_collection);

65 g_font_collection.CopyTo(col);

66 return S_OK;

67 }

68

69 // Copied from content/common/font_warmup_win.cc

70 void PatchDWriteFactory(IDWriteFactory* factory) {

71 const unsigned int kGetSystemFontCollectionVTableIndex = 3;

72

73 PROC* vtable = reinterpret_cast<PROC*>(factory);

74 PROC* function_ptr = &vtable[kGetSystemFontCollectionVTableIndex];

75 void* stub_function = &StubFontCollection;

76 base::win::ModifyCode(function_ptr, &stub_function, sizeof(PROC));

77 }

78

79 // Needed as a function for Bind()

80 IPC::Sender* GetSenderOverride() {

81 return g_sender_override;

82 }

83

84 } // namespace

85

86 void InitializeDWriteFontProxy(

87 const base::Callback<IPC::Sender*(void)>& sender) {

88 mswr::ComPtr<IDWriteFactory> factory;

89

90 CreateDirectWriteFactory(&factory);

91

92 if (!g_font_collection) {

93 if (g_sender_override) {

94 mswr::MakeAndInitialize<DWriteFontCollectionProxy>(

95 &g_font_collection, factory.Get(), base::Bind(&GetSenderOverride));

96 } else {

97 mswr::MakeAndInitialize<DWriteFontCollectionProxy>(&g_font_collection,

98 factory.Get(), sender);

99 }

100 }

101

102 PatchDWriteFactory(factory.Get());

103

104 blink::WebFontRendering::setDirectWriteFactory(factory.Get());

105 SkFontMgr* skia_font_manager = SkFontMgr_New_DirectWrite(factory.Get());

106 SetDefaultSkiaFactory(skia_font_manager);

107 }

108

109 void UninitializeDWriteFontProxy() {

110 if (g_font_collection)

111 g_font_collection->Unregister();

112 }

113

114 void SetDWriteFontProxySenderForTesting(IPC::Sender* sender) {

115 g_sender_override = sender;

116 }

117

118 } // namespace content

OLD	NEW