include/utils/win/SkIStream.h - Issue 2070983002: Move headers in include/utils/win to src/utils/win.

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Issue 2070983002: Move headers in include/utils/win to src/utils/win. (Closed) Base URL: https://skia.googlesource.com/skia.git@master

Patch Set: Really rebase. Created 4 years, 6 months ago

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1

2 /*

3 * Copyright 2011 Google Inc.

4 *

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

6 * found in the LICENSE file.

7 */

8

9

10 #ifndef SkIStream_DEFINED

11 #define SkIStream_DEFINED

12

13 #include "SkTypes.h"

14

15 #ifdef SK_BUILD_FOR_WIN

16

17 #include "../../private/SkLeanWindows.h"

18 #include <ole2.h>

19

20 class SkStream;

21 class SkWStream;

22

23 /**

24 * A bare IStream implementation which properly reference counts

25 * but returns E_NOTIMPL for all ISequentialStream and IStream methods.

26 */

27 class SkBaseIStream : public IStream {

28 private:

29 LONG _refcount;

30

31 protected:

32 explicit SkBaseIStream();

33 virtual ~SkBaseIStream();

34

35 public:

36 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid

37 , void ** ppvObject);

38 virtual ULONG STDMETHODCALLTYPE AddRef(void);

39 virtual ULONG STDMETHODCALLTYPE Release(void);

40

41 // ISequentialStream Interface

42 public:

43 virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead);

44

45 virtual HRESULT STDMETHODCALLTYPE Write(void const* pv

46 , ULONG cb

47 , ULONG* pcbWritten);

48

49 // IStream Interface

50 public:

51 virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER);

52

53 virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream*

54 , ULARGE_INTEGER

55 , ULARGE_INTEGER*

56 , ULARGE_INTEGER*);

57

58 virtual HRESULT STDMETHODCALLTYPE Commit(DWORD);

59

60 virtual HRESULT STDMETHODCALLTYPE Revert(void);

61

62 virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER

63 , ULARGE_INTEGER

64 , DWORD);

65

66 virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER

67 , ULARGE_INTEGER

68 , DWORD);

69

70 virtual HRESULT STDMETHODCALLTYPE Clone(IStream **);

71

72 virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove

73 , DWORD dwOrigin

74 , ULARGE_INTEGER* lpNewFilePointer);

75

76 virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg

77 , DWORD grfStatFlag);

78 };

79

80 /**

81 * A minimal read-only IStream implementation which wraps an SkStream.

82 */

83 class SkIStream : public SkBaseIStream {

84 private:

85 SkStream *fSkStream;

86 const bool fDeleteOnRelease;

87 ULARGE_INTEGER fLocation;

88

89 SkIStream(SkStream* stream, bool fDeleteOnRelease);

90 virtual ~SkIStream();

91

92 public:

93 HRESULT static CreateFromSkStream(SkStream* stream

94 , bool fDeleteOnRelease

95 , IStream ** ppStream);

96

97 virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead);

98

99 virtual HRESULT STDMETHODCALLTYPE Write(void const* pv

100 , ULONG cb

101 , ULONG* pcbWritten);

102

103 virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove

104 , DWORD dwOrigin

105 , ULARGE_INTEGER* lpNewFilePointer);

106

107 virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg

108 , DWORD grfStatFlag);

109 };

110

111 /**

112 * A minimal write-only IStream implementation which wraps an SkWIStream.

113 */

114 class SkWIStream : public SkBaseIStream {

115 private:

116 SkWStream *fSkWStream;

117

118 SkWIStream(SkWStream* stream);

119 virtual ~SkWIStream();

120

121 public:

122 HRESULT static CreateFromSkWStream(SkWStream* stream, IStream ** ppStream);

123

124 virtual HRESULT STDMETHODCALLTYPE Write(void const* pv

125 , ULONG cb

126 , ULONG* pcbWritten);

127

128 virtual HRESULT STDMETHODCALLTYPE Commit(DWORD);

129

130 virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg

131 , DWORD grfStatFlag);

132 };

133

134 #endif // SK_BUILD_FOR_WIN

135 #endif // SkIStream_DEFINED

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