gfx/skia/trunk/src/utils/win/SkDWriteFontFileStream.h@129ffea94266
gfx/skia/trunk/src/utils/win/SkDWriteFontFileStream.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 /*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
8 #ifndef SkDWriteFontFileStream_DEFINED
9 #define SkDWriteFontFileStream_DEFINED
11 #include "SkTypes.h"
13 #include "SkStream.h"
14 #include "SkTScopedComPtr.h"
16 #include <dwrite.h>
18 /**
19 * An SkStream backed by an IDWriteFontFileStream.
20 * This allows Skia code to read an IDWriteFontFileStream.
21 */
22 class SkDWriteFontFileStream : public SkStreamMemory {
23 public:
24 explicit SkDWriteFontFileStream(IDWriteFontFileStream* fontFileStream);
25 virtual ~SkDWriteFontFileStream();
27 virtual size_t read(void* buffer, size_t size) SK_OVERRIDE;
28 virtual bool isAtEnd() const SK_OVERRIDE;
29 virtual bool rewind() SK_OVERRIDE;
30 virtual SkDWriteFontFileStream* duplicate() const SK_OVERRIDE;
31 virtual size_t getPosition() const SK_OVERRIDE;
32 virtual bool seek(size_t position) SK_OVERRIDE;
33 virtual bool move(long offset) SK_OVERRIDE;
34 virtual SkDWriteFontFileStream* fork() const SK_OVERRIDE;
35 virtual size_t getLength() const SK_OVERRIDE;
36 virtual const void* getMemoryBase() SK_OVERRIDE;
38 private:
39 SkTScopedComPtr<IDWriteFontFileStream> fFontFileStream;
40 size_t fPos;
41 const void* fLockedMemory;
42 void* fFragmentLock;
43 };
45 /**
46 * An IDWriteFontFileStream backed by an SkStream.
47 * This allows DirectWrite to read an SkStream.
48 */
49 class SkDWriteFontFileStreamWrapper : public IDWriteFontFileStream {
50 public:
51 // IUnknown methods
52 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject);
53 virtual ULONG STDMETHODCALLTYPE AddRef();
54 virtual ULONG STDMETHODCALLTYPE Release();
56 // IDWriteFontFileStream methods
57 virtual HRESULT STDMETHODCALLTYPE ReadFileFragment(
58 void const** fragmentStart,
59 UINT64 fileOffset,
60 UINT64 fragmentSize,
61 void** fragmentContext);
63 virtual void STDMETHODCALLTYPE ReleaseFileFragment(void* fragmentContext);
64 virtual HRESULT STDMETHODCALLTYPE GetFileSize(UINT64* fileSize);
65 virtual HRESULT STDMETHODCALLTYPE GetLastWriteTime(UINT64* lastWriteTime);
67 static HRESULT Create(SkStream* stream, SkDWriteFontFileStreamWrapper** streamFontFileStream);
69 private:
70 explicit SkDWriteFontFileStreamWrapper(SkStream* stream);
72 ULONG fRefCount;
73 SkAutoTUnref<SkStream> fStream;
74 SkMutex fStreamMutex;
75 };
76 #endif
