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comparison: gfx/skia/trunk/src/core/SkValidatingReadBuffer.h
gfx/skia/trunk/src/core/SkValidatingReadBuffer.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:3de49d59c6f8 |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 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 */ | |
| 7 | |
| 8 #ifndef SkValidatingReadBuffer_DEFINED | |
| 9 #define SkValidatingReadBuffer_DEFINED | |
| 10 | |
| 11 #include "SkRefCnt.h" | |
| 12 #include "SkBitmapHeap.h" | |
| 13 #include "SkReadBuffer.h" | |
| 14 #include "SkWriteBuffer.h" | |
| 15 #include "SkPath.h" | |
| 16 #include "SkPicture.h" | |
| 17 #include "SkReader32.h" | |
| 18 | |
| 19 class SkBitmap; | |
| 20 | |
| 21 class SkValidatingReadBuffer : public SkReadBuffer { | |
| 22 public: | |
| 23 SkValidatingReadBuffer(const void* data, size_t size); | |
| 24 virtual ~SkValidatingReadBuffer(); | |
| 25 | |
| 26 const void* skip(size_t size); | |
| 27 | |
| 28 // primitives | |
| 29 virtual bool readBool() SK_OVERRIDE; | |
| 30 virtual SkColor readColor() SK_OVERRIDE; | |
| 31 virtual SkFixed readFixed() SK_OVERRIDE; | |
| 32 virtual int32_t readInt() SK_OVERRIDE; | |
| 33 virtual SkScalar readScalar() SK_OVERRIDE; | |
| 34 virtual uint32_t readUInt() SK_OVERRIDE; | |
| 35 virtual int32_t read32() SK_OVERRIDE; | |
| 36 | |
| 37 // strings -- the caller is responsible for freeing the string contents | |
| 38 virtual void readString(SkString* string) SK_OVERRIDE; | |
| 39 virtual void* readEncodedString(size_t* length, SkPaint::TextEncoding encoding) SK_OVERRIDE; | |
| 40 | |
| 41 // common data structures | |
| 42 virtual SkFlattenable* readFlattenable(SkFlattenable::Type type) SK_OVERRIDE; | |
| 43 virtual void readPoint(SkPoint* point) SK_OVERRIDE; | |
| 44 virtual void readMatrix(SkMatrix* matrix) SK_OVERRIDE; | |
| 45 virtual void readIRect(SkIRect* rect) SK_OVERRIDE; | |
| 46 virtual void readRect(SkRect* rect) SK_OVERRIDE; | |
| 47 virtual void readRegion(SkRegion* region) SK_OVERRIDE; | |
| 48 virtual void readPath(SkPath* path) SK_OVERRIDE; | |
| 49 | |
| 50 // binary data and arrays | |
| 51 virtual bool readByteArray(void* value, size_t size) SK_OVERRIDE; | |
| 52 virtual bool readColorArray(SkColor* colors, size_t size) SK_OVERRIDE; | |
| 53 virtual bool readIntArray(int32_t* values, size_t size) SK_OVERRIDE; | |
| 54 virtual bool readPointArray(SkPoint* points, size_t size) SK_OVERRIDE; | |
| 55 virtual bool readScalarArray(SkScalar* values, size_t size) SK_OVERRIDE; | |
| 56 | |
| 57 // helpers to get info about arrays and binary data | |
| 58 virtual uint32_t getArrayCount() SK_OVERRIDE; | |
| 59 | |
| 60 virtual void readBitmap(SkBitmap* bitmap) SK_OVERRIDE; | |
| 61 // TODO: Implement this (securely) when needed | |
| 62 virtual SkTypeface* readTypeface() SK_OVERRIDE; | |
| 63 | |
| 64 virtual bool validate(bool isValid) SK_OVERRIDE; | |
| 65 virtual bool isValid() const SK_OVERRIDE; | |
| 66 | |
| 67 virtual bool validateAvailable(size_t size) SK_OVERRIDE; | |
| 68 | |
| 69 private: | |
| 70 bool readArray(void* value, size_t size, size_t elementSize); | |
| 71 | |
| 72 void setMemory(const void* data, size_t size); | |
| 73 | |
| 74 static bool IsPtrAlign4(const void* ptr) { | |
| 75 return SkIsAlign4((uintptr_t)ptr); | |
| 76 } | |
| 77 | |
| 78 bool fError; | |
| 79 | |
| 80 typedef SkReadBuffer INHERITED; | |
| 81 }; | |
| 82 | |
| 83 #endif // SkValidatingReadBuffer_DEFINED |
