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 "SkReadBuffer.h"
14 #include "SkWriteBuffer.h"
16 #include "SkPicture.h"
17 #include "SkReader32.h"
21 class SkValidatingReadBuffer : public SkReadBuffer {
23 SkValidatingReadBuffer(const void* data, size_t size);
24 virtual ~SkValidatingReadBuffer();
26 const void* skip(size_t size);
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;
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;
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;
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;
57 // helpers to get info about arrays and binary data
58 virtual uint32_t getArrayCount() SK_OVERRIDE;
60 virtual void readBitmap(SkBitmap* bitmap) SK_OVERRIDE;
61 // TODO: Implement this (securely) when needed
62 virtual SkTypeface* readTypeface() SK_OVERRIDE;
64 virtual bool validate(bool isValid) SK_OVERRIDE;
65 virtual bool isValid() const SK_OVERRIDE;
67 virtual bool validateAvailable(size_t size) SK_OVERRIDE;
70 bool readArray(void* value, size_t size, size_t elementSize);
72 void setMemory(const void* data, size_t size);
74 static bool IsPtrAlign4(const void* ptr) {
75 return SkIsAlign4((uintptr_t)ptr);
81 typedef SkReadBuffer INHERITED;
84 #endif // SkValidatingReadBuffer_DEFINED