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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_MAC_FONT_LOADER_H_ | 5 #ifndef CONTENT_COMMON_MAC_FONT_LOADER_H_ |
6 #define CONTENT_COMMON_MAC_FONT_LOADER_H_ | 6 #define CONTENT_COMMON_MAC_FONT_LOADER_H_ |
7 | 7 |
8 #include <ApplicationServices/ApplicationServices.h> | 8 #include <ApplicationServices/ApplicationServices.h> |
| 9 #include <stdint.h> |
9 | 10 |
10 #include "base/memory/shared_memory.h" | 11 #include "base/memory/shared_memory.h" |
11 #include "content/common/content_export.h" | 12 #include "content/common/content_export.h" |
12 | 13 |
13 #ifdef __OBJC__ | 14 #ifdef __OBJC__ |
14 @class NSFont; | 15 @class NSFont; |
15 #else | 16 #else |
16 class NSFont; | 17 class NSFont; |
17 #endif | 18 #endif |
18 | 19 |
19 struct FontDescriptor; | 20 struct FontDescriptor; |
20 | 21 |
21 // Provides functionality to transmit fonts over IPC. | 22 // Provides functionality to transmit fonts over IPC. |
22 // | 23 // |
23 // Note about font formats: .dfont (datafork suitcase) fonts are currently not | 24 // Note about font formats: .dfont (datafork suitcase) fonts are currently not |
24 // supported by this code since CGFontCreateWithDataProvider() can't handle them | 25 // supported by this code since CGFontCreateWithDataProvider() can't handle them |
25 // directly. | 26 // directly. |
26 | 27 |
27 class FontLoader { | 28 class FontLoader { |
28 public: | 29 public: |
29 // This structure holds the result of LoadFont(). This structure is passed to | 30 // This structure holds the result of LoadFont(). This structure is passed to |
30 // LoadFont(), which should run on the file thread, then it is passed to a | 31 // LoadFont(), which should run on the file thread, then it is passed to a |
31 // task which sends the result to the originating renderer. | 32 // task which sends the result to the originating renderer. |
32 struct Result { | 33 struct Result { |
33 uint32 font_data_size; | 34 uint32_t font_data_size; |
34 base::SharedMemory font_data; | 35 base::SharedMemory font_data; |
35 uint32 font_id; | 36 uint32_t font_id; |
36 }; | 37 }; |
37 // Load a font specified by |font| into a shared memory buffer suitable for | 38 // Load a font specified by |font| into a shared memory buffer suitable for |
38 // sending over IPC. | 39 // sending over IPC. |
39 // | 40 // |
40 // On return: | 41 // On return: |
41 // |result->font_data| - shared memory buffer containing the raw data for | 42 // |result->font_data| - shared memory buffer containing the raw data for |
42 // the font file. The buffer is only valid when both |result->font_data_size| | 43 // the font file. The buffer is only valid when both |result->font_data_size| |
43 // and |result->font_id| are not zero. | 44 // and |result->font_id| are not zero. |
44 // |result->font_data_size| - size of data contained in |result->font_data|. | 45 // |result->font_data_size| - size of data contained in |result->font_data|. |
45 // This value is zero on failure. | 46 // This value is zero on failure. |
46 // |result->font_id| - unique identifier for the on-disk file we load for | 47 // |result->font_id| - unique identifier for the on-disk file we load for |
47 // the font. This value is zero on failure. | 48 // the font. This value is zero on failure. |
48 CONTENT_EXPORT | 49 CONTENT_EXPORT |
49 static void LoadFont(const FontDescriptor& font, FontLoader::Result* result); | 50 static void LoadFont(const FontDescriptor& font, FontLoader::Result* result); |
50 | 51 |
51 // Given a shared memory buffer containing the raw data for a font file, load | 52 // Given a shared memory buffer containing the raw data for a font file, load |
52 // the font and return a CGFontRef. | 53 // the font and return a CGFontRef. |
53 // | 54 // |
54 // |data| - A shared memory handle pointing to the raw data from a font file. | 55 // |data| - A shared memory handle pointing to the raw data from a font file. |
55 // |data_size| - Size of |data|. | 56 // |data_size| - Size of |data|. |
56 // | 57 // |
57 // On return: | 58 // On return: |
58 // returns true on success, false on failure. | 59 // returns true on success, false on failure. |
59 // |out| - A CGFontRef corresponding to the designated font. | 60 // |out| - A CGFontRef corresponding to the designated font. |
60 // The caller is responsible for releasing this value via CGFontRelease() | 61 // The caller is responsible for releasing this value via CGFontRelease() |
61 // when done. | 62 // when done. |
62 CONTENT_EXPORT | 63 CONTENT_EXPORT |
63 static bool CGFontRefFromBuffer(base::SharedMemoryHandle font_data, | 64 static bool CGFontRefFromBuffer(base::SharedMemoryHandle font_data, |
64 uint32 font_data_size, | 65 uint32_t font_data_size, |
65 CGFontRef* out); | 66 CGFontRef* out); |
66 }; | 67 }; |
67 | 68 |
68 #endif // CONTENT_COMMON_MAC_FONT_LOADER_H_ | 69 #endif // CONTENT_COMMON_MAC_FONT_LOADER_H_ |
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