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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_FPDFAPI_PAGE_PAGEINT_H_ | 7 #ifndef CORE_FPDFAPI_PAGE_PAGEINT_H_ |
8 #define CORE_FPDFAPI_PAGE_PAGEINT_H_ | 8 #define CORE_FPDFAPI_PAGE_PAGEINT_H_ |
9 | 9 |
10 #include <map> | |
11 #include <memory> | 10 #include <memory> |
12 #include <set> | |
13 #include <unordered_map> | |
14 #include <utility> | |
15 #include <vector> | 11 #include <vector> |
16 | 12 |
17 #include "core/fpdfapi/page/cpdf_contentmark.h" | 13 #include "core/fpdfapi/page/cpdf_colorspace.h" |
18 #include "core/fpdfapi/page/cpdf_countedobject.h" | 14 #include "core/fpdfapi/page/cpdf_countedobject.h" |
19 #include "core/fpdfapi/page/cpdf_pageobjectholder.h" | |
20 #include "core/fpdfapi/page/cpdf_streamcontentparser.h" | |
21 #include "core/fpdfapi/parser/cpdf_stream.h" | |
22 #include "core/fxcrt/cfx_string_pool_template.h" | |
23 #include "core/fxcrt/cfx_weak_ptr.h" | |
24 #include "core/fxge/cfx_pathdata.h" | |
25 #include "core/fxge/cfx_renderdevice.h" | |
26 | 15 |
27 class CPDF_AllStates; | |
28 class CPDF_ColorSpace; | |
29 class CPDF_ExpIntFunc; | 16 class CPDF_ExpIntFunc; |
30 class CPDF_Font; | |
31 class CPDF_FontEncoding; | |
32 class CPDF_Form; | |
33 class CPDF_IccProfile; | |
34 class CPDF_Image; | |
35 class CPDF_ImageObject; | |
36 class CPDF_Page; | |
37 class CPDF_Pattern; | 17 class CPDF_Pattern; |
38 class CPDF_SampledFunc; | 18 class CPDF_SampledFunc; |
39 class CPDF_StitchFunc; | 19 class CPDF_StitchFunc; |
40 class CPDF_StreamAcc; | 20 class CPDF_StreamAcc; |
41 class CPDF_TextObject; | |
42 class CPDF_Type3Char; | |
43 | |
44 #define PARSE_STEP_LIMIT 100 | |
45 | |
46 class CPDF_StreamParser { | |
47 public: | |
48 enum SyntaxType { EndOfData, Number, Keyword, Name, Others }; | |
49 | |
50 CPDF_StreamParser(const uint8_t* pData, uint32_t dwSize); | |
51 CPDF_StreamParser(const uint8_t* pData, | |
52 uint32_t dwSize, | |
53 const CFX_WeakPtr<CFX_ByteStringPool>& pPool); | |
54 ~CPDF_StreamParser(); | |
55 | |
56 SyntaxType ParseNextElement(); | |
57 uint8_t* GetWordBuf() { return m_WordBuffer; } | |
58 uint32_t GetWordSize() const { return m_WordSize; } | |
59 uint32_t GetPos() const { return m_Pos; } | |
60 void SetPos(uint32_t pos) { m_Pos = pos; } | |
61 std::unique_ptr<CPDF_Object> GetObject() { return std::move(m_pLastObj); } | |
62 std::unique_ptr<CPDF_Object> ReadNextObject(bool bAllowNestedArray, | |
63 uint32_t dwInArrayLevel); | |
64 std::unique_ptr<CPDF_Stream> ReadInlineStream( | |
65 CPDF_Document* pDoc, | |
66 std::unique_ptr<CPDF_Dictionary> pDict, | |
67 CPDF_Object* pCSObj); | |
68 | |
69 private: | |
70 friend class cpdf_streamparser_ReadHexString_Test; | |
71 | |
72 void GetNextWord(bool& bIsNumber); | |
73 CFX_ByteString ReadString(); | |
74 CFX_ByteString ReadHexString(); | |
75 bool PositionIsInBounds() const; | |
76 | |
77 const uint8_t* m_pBuf; | |
78 uint32_t m_Size; // Length in bytes of m_pBuf. | |
79 uint32_t m_Pos; // Current byte position within m_pBuf. | |
80 uint8_t m_WordBuffer[256]; | |
81 uint32_t m_WordSize; | |
82 std::unique_ptr<CPDF_Object> m_pLastObj; | |
83 CFX_WeakPtr<CFX_ByteStringPool> m_pPool; | |
84 }; | |
85 | |
86 #define _FPDF_MAX_TYPE3_FORM_LEVEL_ 4 | |
87 | |
88 class CPDF_ContentParser { | |
89 public: | |
90 enum ParseStatus { Ready, ToBeContinued, Done }; | |
91 | |
92 CPDF_ContentParser(); | |
93 ~CPDF_ContentParser(); | |
94 | |
95 ParseStatus GetStatus() const { return m_Status; } | |
96 void Start(CPDF_Page* pPage); | |
97 void Start(CPDF_Form* pForm, | |
98 CPDF_AllStates* pGraphicStates, | |
99 const CFX_Matrix* pParentMatrix, | |
100 CPDF_Type3Char* pType3Char, | |
101 int level); | |
102 void Continue(IFX_Pause* pPause); | |
103 | |
104 private: | |
105 enum InternalStage { | |
106 STAGE_GETCONTENT = 1, | |
107 STAGE_PARSE, | |
108 STAGE_CHECKCLIP, | |
109 }; | |
110 | |
111 ParseStatus m_Status; | |
112 InternalStage m_InternalStage; | |
113 CPDF_PageObjectHolder* m_pObjectHolder; | |
114 bool m_bForm; | |
115 CPDF_Type3Char* m_pType3Char; | |
116 uint32_t m_nStreams; | |
117 std::unique_ptr<CPDF_StreamAcc> m_pSingleStream; | |
118 std::vector<std::unique_ptr<CPDF_StreamAcc>> m_StreamArray; | |
119 uint8_t* m_pData; | |
120 uint32_t m_Size; | |
121 uint32_t m_CurrentOffset; | |
122 std::unique_ptr<CPDF_StreamContentParser> m_pParser; | |
123 }; | |
124 | 21 |
125 class CPDF_Function { | 22 class CPDF_Function { |
126 public: | 23 public: |
127 enum class Type { | 24 enum class Type { |
128 kTypeInvalid = -1, | 25 kTypeInvalid = -1, |
129 kType0Sampled = 0, | 26 kType0Sampled = 0, |
130 kType2ExpotentialInterpolation = 2, | 27 kType2ExpotentialInterpolation = 2, |
131 kType3Stitching = 3, | 28 kType3Stitching = 3, |
132 kType4PostScript = 4, | 29 kType4PostScript = 4, |
133 }; | 30 }; |
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300 CPDF_CountedPattern* m_pCountedPattern; | 197 CPDF_CountedPattern* m_pCountedPattern; |
301 int m_nComps; | 198 int m_nComps; |
302 FX_FLOAT m_Comps[MAX_PATTERN_COLORCOMPS]; | 199 FX_FLOAT m_Comps[MAX_PATTERN_COLORCOMPS]; |
303 }; | 200 }; |
304 | 201 |
305 CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr); | 202 CFX_ByteStringC PDF_FindKeyAbbreviationForTesting(const CFX_ByteStringC& abbr); |
306 CFX_ByteStringC PDF_FindValueAbbreviationForTesting( | 203 CFX_ByteStringC PDF_FindValueAbbreviationForTesting( |
307 const CFX_ByteStringC& abbr); | 204 const CFX_ByteStringC& abbr); |
308 | 205 |
309 #endif // CORE_FPDFAPI_PAGE_PAGEINT_H_ | 206 #endif // CORE_FPDFAPI_PAGE_PAGEINT_H_ |
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