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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_CHILD_FONT_WARMUP_WIN_H_ | 5 #ifndef CONTENT_CHILD_FONT_WARMUP_WIN_H_ |
6 #define CONTENT_CHILD_FONT_WARMUP_WIN_H_ | 6 #define CONTENT_CHILD_FONT_WARMUP_WIN_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include "base/files/file_path.h" | 10 #include "base/files/file_path.h" |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
12 #include "content/common/content_export.h" | 12 #include "content/common/content_export.h" |
13 | 13 |
14 class SkFontMgr; | 14 class SkFontMgr; |
| 15 template <typename T> class sk_sp; |
15 | 16 |
16 namespace content { | 17 namespace content { |
17 | 18 |
18 class GdiFontPatchData { | 19 class GdiFontPatchData { |
19 public: | 20 public: |
20 virtual ~GdiFontPatchData() {} | 21 virtual ~GdiFontPatchData() {} |
21 | 22 |
22 protected: | 23 protected: |
23 GdiFontPatchData() {} | 24 GdiFontPatchData() {} |
24 | 25 |
25 private: | 26 private: |
26 DISALLOW_COPY_AND_ASSIGN(GdiFontPatchData); | 27 DISALLOW_COPY_AND_ASSIGN(GdiFontPatchData); |
27 }; | 28 }; |
28 | 29 |
29 // Hook a module's imported GDI font functions to reimplement font enumeration | 30 // Hook a module's imported GDI font functions to reimplement font enumeration |
30 // and font data retrieval for DLLs which can't be easily modified. | 31 // and font data retrieval for DLLs which can't be easily modified. |
31 CONTENT_EXPORT GdiFontPatchData* PatchGdiFontEnumeration( | 32 CONTENT_EXPORT GdiFontPatchData* PatchGdiFontEnumeration( |
32 const base::FilePath& path); | 33 const base::FilePath& path); |
33 | 34 |
34 // Testing method to get the number of in-flight emulated GDI handles. | 35 // Testing method to get the number of in-flight emulated GDI handles. |
35 CONTENT_EXPORT size_t GetEmulatedGdiHandleCountForTesting(); | 36 CONTENT_EXPORT size_t GetEmulatedGdiHandleCountForTesting(); |
36 | 37 |
37 // Testing method to reset the table of emulated GDI handles. | 38 // Testing method to reset the table of emulated GDI handles. |
38 CONTENT_EXPORT void ResetEmulatedGdiHandlesForTesting(); | 39 CONTENT_EXPORT void ResetEmulatedGdiHandlesForTesting(); |
39 | 40 |
40 // Sets the pre-sandbox warmup font manager directly. This should only be used | 41 // Sets the pre-sandbox warmup font manager directly. This should only be used |
41 // for testing the implementation. | 42 // for testing the implementation. |
42 CONTENT_EXPORT void SetPreSandboxWarmupFontMgrForTesting(SkFontMgr* fontmgr); | 43 CONTENT_EXPORT void SetPreSandboxWarmupFontMgrForTesting( |
| 44 sk_sp<SkFontMgr> fontmgr); |
43 | 45 |
44 // Directwrite connects to the font cache service to retrieve information about | 46 // Directwrite connects to the font cache service to retrieve information about |
45 // fonts installed on the system etc. This works well outside the sandbox and | 47 // fonts installed on the system etc. This works well outside the sandbox and |
46 // within the sandbox as long as the lpc connection maintained by the current | 48 // within the sandbox as long as the lpc connection maintained by the current |
47 // process with the font cache service remains valid. It appears that there | 49 // process with the font cache service remains valid. It appears that there |
48 // are cases when this connection is dropped after which directwrite is unable | 50 // are cases when this connection is dropped after which directwrite is unable |
49 // to connect to the font cache service which causes problems with characters | 51 // to connect to the font cache service which causes problems with characters |
50 // disappearing. | 52 // disappearing. |
51 // Directwrite has fallback code to enumerate fonts if it is unable to connect | 53 // Directwrite has fallback code to enumerate fonts if it is unable to connect |
52 // to the font cache service. We need to intercept the following APIs to | 54 // to the font cache service. We need to intercept the following APIs to |
53 // ensure that it does not connect to the font cache service. | 55 // ensure that it does not connect to the font cache service. |
54 // NtALpcConnectPort | 56 // NtALpcConnectPort |
55 // OpenSCManagerW | 57 // OpenSCManagerW |
56 // OpenServiceW | 58 // OpenServiceW |
57 // StartServiceW | 59 // StartServiceW |
58 // CloseServiceHandle. | 60 // CloseServiceHandle. |
59 // These are all IAT patched. | 61 // These are all IAT patched. |
60 CONTENT_EXPORT void PatchServiceManagerCalls(); | 62 CONTENT_EXPORT void PatchServiceManagerCalls(); |
61 | 63 |
62 } // namespace content | 64 } // namespace content |
63 | 65 |
64 #endif // CONTENT_CHILD_FONT_WARMUP_WIN_H_ | 66 #endif // CONTENT_CHILD_FONT_WARMUP_WIN_H_ |
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