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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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_COMMON_FONT_CONFIG_IPC_LINUX_H_ | 5 #ifndef CONTENT_COMMON_FONT_CONFIG_IPC_LINUX_H_ |
6 #define CONTENT_COMMON_FONT_CONFIG_IPC_LINUX_H_ | 6 #define CONTENT_COMMON_FONT_CONFIG_IPC_LINUX_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
| 9 #include "base/containers/hash_tables.h" |
| 10 #include "base/memory/weak_ptr.h" |
9 #include "third_party/skia/include/ports/SkFontConfigInterface.h" | 11 #include "third_party/skia/include/ports/SkFontConfigInterface.h" |
10 | 12 |
11 #include <string> | 13 #include <string> |
12 | 14 |
13 namespace content { | 15 namespace content { |
14 | 16 |
15 // FontConfig implementation for Skia that proxies out of process to get out | 17 // FontConfig implementation for Skia that proxies out of process to get out |
16 // of the sandbox. See http://code.google.com/p/chromium/wiki/LinuxSandboxIPC | 18 // of the sandbox. See http://code.google.com/p/chromium/wiki/LinuxSandboxIPC |
17 class FontConfigIPC : public SkFontConfigInterface { | 19 class FontConfigIPC : public SkFontConfigInterface { |
18 public: | 20 public: |
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30 enum Method { | 32 enum Method { |
31 METHOD_MATCH = 0, | 33 METHOD_MATCH = 0, |
32 METHOD_OPEN = 1, | 34 METHOD_OPEN = 1, |
33 }; | 35 }; |
34 | 36 |
35 enum { | 37 enum { |
36 kMaxFontFamilyLength = 2048 | 38 kMaxFontFamilyLength = 2048 |
37 }; | 39 }; |
38 | 40 |
39 private: | 41 private: |
| 42 class FontMemoryStream; |
| 43 |
| 44 FontMemoryStream* StreamFromFD(int fd); |
| 45 void PurgeFontStreamCache(); |
| 46 |
40 const int fd_; | 47 const int fd_; |
| 48 // Maps font identity ID to the cached memory stream with font data: |
| 49 base::hash_map<uint32_t, base::WeakPtr<FontMemoryStream>> font_stream_cache_; |
41 }; | 50 }; |
42 | 51 |
43 } // namespace content | 52 } // namespace content |
44 | 53 |
45 #endif // CONTENT_COMMON_FONT_CONFIG_IPC_LINUX_H_ | 54 #endif // CONTENT_COMMON_FONT_CONFIG_IPC_LINUX_H_ |
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