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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkValidatingReadBuffer_DEFINED | 8 #ifndef SkValidatingReadBuffer_DEFINED |
9 #define SkValidatingReadBuffer_DEFINED | 9 #define SkValidatingReadBuffer_DEFINED |
10 | 10 |
11 #include "SkRefCnt.h" | 11 #include "SkRefCnt.h" |
12 #include "SkBitmapHeap.h" | 12 #include "SkBitmapHeap.h" |
13 #include "SkReadBuffer.h" | 13 #include "SkReadBuffer.h" |
14 #include "SkWriteBuffer.h" | 14 #include "SkWriteBuffer.h" |
15 #include "SkPath.h" | 15 #include "SkPath.h" |
16 #include "SkPicture.h" | 16 #include "SkPicture.h" |
17 #include "SkReader32.h" | 17 #include "SkReader32.h" |
18 | 18 |
19 class SkBitmap; | 19 class SkBitmap; |
20 | 20 |
21 class SkValidatingReadBuffer : public SkReadBuffer { | 21 class SkValidatingReadBuffer : public SkReadBuffer { |
22 public: | 22 public: |
23 SkValidatingReadBuffer(const void* data, size_t size); | 23 SkValidatingReadBuffer(const void* data, size_t size); |
24 virtual ~SkValidatingReadBuffer(); | 24 virtual ~SkValidatingReadBuffer(); |
25 | 25 |
26 virtual const void* skip(size_t size) SK_OVERRIDE; | 26 const void* skip(size_t size) SK_OVERRIDE; |
27 | 27 |
28 // primitives | 28 // primitives |
29 virtual bool readBool() SK_OVERRIDE; | 29 bool readBool() SK_OVERRIDE; |
30 virtual SkColor readColor() SK_OVERRIDE; | 30 SkColor readColor() SK_OVERRIDE; |
31 virtual SkFixed readFixed() SK_OVERRIDE; | 31 SkFixed readFixed() SK_OVERRIDE; |
32 virtual int32_t readInt() SK_OVERRIDE; | 32 int32_t readInt() SK_OVERRIDE; |
33 virtual SkScalar readScalar() SK_OVERRIDE; | 33 SkScalar readScalar() SK_OVERRIDE; |
34 virtual uint32_t readUInt() SK_OVERRIDE; | 34 uint32_t readUInt() SK_OVERRIDE; |
35 virtual int32_t read32() SK_OVERRIDE; | 35 int32_t read32() SK_OVERRIDE; |
36 | 36 |
37 // strings -- the caller is responsible for freeing the string contents | 37 // strings -- the caller is responsible for freeing the string contents |
38 virtual void readString(SkString* string) SK_OVERRIDE; | 38 void readString(SkString* string) SK_OVERRIDE; |
39 virtual void* readEncodedString(size_t* length, SkPaint::TextEncoding encodi
ng) SK_OVERRIDE; | 39 void* readEncodedString(size_t* length, SkPaint::TextEncoding encoding) SK_O
VERRIDE; |
40 | 40 |
41 // common data structures | 41 // common data structures |
42 virtual SkFlattenable* readFlattenable(SkFlattenable::Type type) SK_OVERRIDE
; | 42 SkFlattenable* readFlattenable(SkFlattenable::Type type) SK_OVERRIDE; |
43 virtual void skipFlattenable() SK_OVERRIDE; | 43 void skipFlattenable() SK_OVERRIDE; |
44 virtual void readPoint(SkPoint* point) SK_OVERRIDE; | 44 void readPoint(SkPoint* point) SK_OVERRIDE; |
45 virtual void readMatrix(SkMatrix* matrix) SK_OVERRIDE; | 45 void readMatrix(SkMatrix* matrix) SK_OVERRIDE; |
46 virtual void readIRect(SkIRect* rect) SK_OVERRIDE; | 46 void readIRect(SkIRect* rect) SK_OVERRIDE; |
47 virtual void readRect(SkRect* rect) SK_OVERRIDE; | 47 void readRect(SkRect* rect) SK_OVERRIDE; |
48 virtual void readRegion(SkRegion* region) SK_OVERRIDE; | 48 void readRegion(SkRegion* region) SK_OVERRIDE; |
49 virtual void readPath(SkPath* path) SK_OVERRIDE; | 49 void readPath(SkPath* path) SK_OVERRIDE; |
50 | 50 |
51 // binary data and arrays | 51 // binary data and arrays |
52 virtual bool readByteArray(void* value, size_t size) SK_OVERRIDE; | 52 bool readByteArray(void* value, size_t size) SK_OVERRIDE; |
53 virtual bool readColorArray(SkColor* colors, size_t size) SK_OVERRIDE; | 53 bool readColorArray(SkColor* colors, size_t size) SK_OVERRIDE; |
54 virtual bool readIntArray(int32_t* values, size_t size) SK_OVERRIDE; | 54 bool readIntArray(int32_t* values, size_t size) SK_OVERRIDE; |
55 virtual bool readPointArray(SkPoint* points, size_t size) SK_OVERRIDE; | 55 bool readPointArray(SkPoint* points, size_t size) SK_OVERRIDE; |
56 virtual bool readScalarArray(SkScalar* values, size_t size) SK_OVERRIDE; | 56 bool readScalarArray(SkScalar* values, size_t size) SK_OVERRIDE; |
57 | 57 |
58 // helpers to get info about arrays and binary data | 58 // helpers to get info about arrays and binary data |
59 virtual uint32_t getArrayCount() SK_OVERRIDE; | 59 uint32_t getArrayCount() SK_OVERRIDE; |
60 | 60 |
61 // TODO: Implement this (securely) when needed | 61 // TODO: Implement this (securely) when needed |
62 virtual SkTypeface* readTypeface() SK_OVERRIDE; | 62 SkTypeface* readTypeface() SK_OVERRIDE; |
63 | 63 |
64 virtual bool validate(bool isValid) SK_OVERRIDE; | 64 bool validate(bool isValid) SK_OVERRIDE; |
65 virtual bool isValid() const SK_OVERRIDE; | 65 bool isValid() const SK_OVERRIDE; |
66 | 66 |
67 virtual bool validateAvailable(size_t size) SK_OVERRIDE; | 67 bool validateAvailable(size_t size) SK_OVERRIDE; |
68 | 68 |
69 private: | 69 private: |
70 bool readArray(void* value, size_t size, size_t elementSize); | 70 bool readArray(void* value, size_t size, size_t elementSize); |
71 | 71 |
72 void setMemory(const void* data, size_t size); | 72 void setMemory(const void* data, size_t size); |
73 | 73 |
74 static bool IsPtrAlign4(const void* ptr) { | 74 static bool IsPtrAlign4(const void* ptr) { |
75 return SkIsAlign4((uintptr_t)ptr); | 75 return SkIsAlign4((uintptr_t)ptr); |
76 } | 76 } |
77 | 77 |
78 bool fError; | 78 bool fError; |
79 | 79 |
80 typedef SkReadBuffer INHERITED; | 80 typedef SkReadBuffer INHERITED; |
81 }; | 81 }; |
82 | 82 |
83 #endif // SkValidatingReadBuffer_DEFINED | 83 #endif // SkValidatingReadBuffer_DEFINED |
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