| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkValidatingReadBuffer_DEFINED |
| #define SkValidatingReadBuffer_DEFINED |
| |
| #include "SkRefCnt.h" |
| #include "SkBitmapHeap.h" |
| #include "SkFlattenableBuffers.h" |
| #include "SkPath.h" |
| #include "SkPicture.h" |
| #include "SkReader32.h" |
| |
| class SkBitmap; |
| |
| class SkValidatingReadBuffer : public SkFlattenableReadBuffer { |
| public: |
| SkValidatingReadBuffer(const void* data, size_t size); |
| virtual ~SkValidatingReadBuffer(); |
| |
| const void* skip(size_t size); |
| |
| // primitives |
| virtual bool readBool() SK_OVERRIDE; |
| virtual SkColor readColor() SK_OVERRIDE; |
| virtual SkFixed readFixed() SK_OVERRIDE; |
| virtual int32_t readInt() SK_OVERRIDE; |
| virtual SkScalar readScalar() SK_OVERRIDE; |
| virtual uint32_t readUInt() SK_OVERRIDE; |
| virtual int32_t read32() SK_OVERRIDE; |
| |
| // strings -- the caller is responsible for freeing the string contents |
| virtual void readString(SkString* string) SK_OVERRIDE; |
| virtual void* readEncodedString(size_t* length, SkPaint::TextEncoding encoding) SK_OVERRIDE; |
| |
| // common data structures |
| virtual SkFlattenable* readFlattenable(SkFlattenable::Type type) SK_OVERRIDE; |
| virtual void readPoint(SkPoint* point) SK_OVERRIDE; |
| virtual void readMatrix(SkMatrix* matrix) SK_OVERRIDE; |
| virtual void readIRect(SkIRect* rect) SK_OVERRIDE; |
| virtual void readRect(SkRect* rect) SK_OVERRIDE; |
| virtual void readRegion(SkRegion* region) SK_OVERRIDE; |
| virtual void readPath(SkPath* path) SK_OVERRIDE; |
| |
| // binary data and arrays |
| virtual bool readByteArray(void* value, size_t size) SK_OVERRIDE; |
| virtual bool readColorArray(SkColor* colors, size_t size) SK_OVERRIDE; |
| virtual bool readIntArray(int32_t* values, size_t size) SK_OVERRIDE; |
| virtual bool readPointArray(SkPoint* points, size_t size) SK_OVERRIDE; |
| virtual bool readScalarArray(SkScalar* values, size_t size) SK_OVERRIDE; |
| |
| // helpers to get info about arrays and binary data |
| virtual uint32_t getArrayCount() SK_OVERRIDE; |
| |
| virtual void readBitmap(SkBitmap* bitmap) SK_OVERRIDE; |
| // TODO: Implement this (securely) when needed |
| virtual SkTypeface* readTypeface() SK_OVERRIDE; |
| |
| virtual bool validate(bool isValid) SK_OVERRIDE; |
| |
| private: |
| bool readArray(void* value, size_t size, size_t elementSize); |
| |
| void setMemory(const void* data, size_t size); |
| |
| static bool IsPtrAlign4(const void* ptr) { |
| return SkIsAlign4((uintptr_t)ptr); |
| } |
| |
| SkReader32 fReader; |
| bool fError; |
| |
| typedef SkFlattenableReadBuffer INHERITED; |
| }; |
| |
| #endif // SkValidatingReadBuffer_DEFINED |