commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 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" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 13 | #include "SkReadBuffer.h" |
| 14 | #include "SkWriteBuffer.h" |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 15 | #include "SkPath.h" |
| 16 | #include "SkPicture.h" |
| 17 | #include "SkReader32.h" |
| 18 | |
| 19 | class SkBitmap; |
| 20 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 21 | class SkValidatingReadBuffer : public SkReadBuffer { |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 22 | public: |
| 23 | SkValidatingReadBuffer(const void* data, size_t size); |
| 24 | virtual ~SkValidatingReadBuffer(); |
| 25 | |
sugoi | 0951fe1 | 2014-06-06 06:44:16 -0700 | [diff] [blame] | 26 | virtual const void* skip(size_t size) SK_OVERRIDE; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 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; |
commit-bot@chromium.org | 83f23d8 | 2014-05-22 12:27:41 +0000 | [diff] [blame] | 43 | virtual void skipFlattenable() SK_OVERRIDE; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 44 | virtual void readPoint(SkPoint* point) SK_OVERRIDE; |
| 45 | virtual void readMatrix(SkMatrix* matrix) SK_OVERRIDE; |
| 46 | virtual void readIRect(SkIRect* rect) SK_OVERRIDE; |
| 47 | virtual void readRect(SkRect* rect) SK_OVERRIDE; |
| 48 | virtual void readRegion(SkRegion* region) SK_OVERRIDE; |
| 49 | virtual void readPath(SkPath* path) SK_OVERRIDE; |
| 50 | |
| 51 | // binary data and arrays |
commit-bot@chromium.org | 0251288 | 2013-10-31 18:37:50 +0000 | [diff] [blame] | 52 | virtual bool readByteArray(void* value, size_t size) SK_OVERRIDE; |
| 53 | virtual bool readColorArray(SkColor* colors, size_t size) SK_OVERRIDE; |
| 54 | virtual bool readIntArray(int32_t* values, size_t size) SK_OVERRIDE; |
| 55 | virtual bool readPointArray(SkPoint* points, size_t size) SK_OVERRIDE; |
| 56 | virtual bool readScalarArray(SkScalar* values, size_t size) SK_OVERRIDE; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 57 | |
| 58 | // helpers to get info about arrays and binary data |
| 59 | virtual uint32_t getArrayCount() SK_OVERRIDE; |
| 60 | |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 61 | // TODO: Implement this (securely) when needed |
commit-bot@chromium.org | 0251288 | 2013-10-31 18:37:50 +0000 | [diff] [blame] | 62 | virtual SkTypeface* readTypeface() SK_OVERRIDE; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 63 | |
commit-bot@chromium.org | 8f457e3 | 2013-11-08 19:22:57 +0000 | [diff] [blame] | 64 | virtual bool validate(bool isValid) SK_OVERRIDE; |
commit-bot@chromium.org | c2e9db3 | 2013-12-06 20:14:46 +0000 | [diff] [blame] | 65 | virtual bool isValid() const SK_OVERRIDE; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 66 | |
commit-bot@chromium.org | ef74fa1 | 2013-12-17 20:49:46 +0000 | [diff] [blame] | 67 | virtual bool validateAvailable(size_t size) SK_OVERRIDE; |
| 68 | |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 69 | private: |
commit-bot@chromium.org | 0251288 | 2013-10-31 18:37:50 +0000 | [diff] [blame] | 70 | bool readArray(void* value, size_t size, size_t elementSize); |
| 71 | |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 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 | |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 78 | bool fError; |
| 79 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 80 | typedef SkReadBuffer INHERITED; |
commit-bot@chromium.org | c0b7e10 | 2013-10-23 17:06:21 +0000 | [diff] [blame] | 81 | }; |
| 82 | |
| 83 | #endif // SkValidatingReadBuffer_DEFINED |