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