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1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
8 #define CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
9 
10 #include <memory>
11 
12 #include "core/fpdfapi/parser/cpdf_stream.h"
13 #include "core/fxcrt/cfx_maybe_owned.h"
14 #include "core/fxcrt/fx_system.h"
15 
16 class CFX_DIBSource;
17 class CFX_DIBitmap;
18 class CPDF_Document;
19 class CPDF_Page;
20 class IFX_Pause;
21 class IFX_SeekableReadStream;
22 
23 class CPDF_Image {
24  public:
25   explicit CPDF_Image(CPDF_Document* pDoc);
26   CPDF_Image(CPDF_Document* pDoc, std::unique_ptr<CPDF_Stream> pStream);
27   CPDF_Image(CPDF_Document* pDoc, uint32_t dwStreamObjNum);
28   ~CPDF_Image();
29 
30   void ConvertStreamToIndirectObject();
31 
GetInlineDict()32   CPDF_Dictionary* GetInlineDict() const { return m_pDict.Get(); }
GetStream()33   CPDF_Stream* GetStream() const { return m_pStream.Get(); }
GetDict()34   CPDF_Dictionary* GetDict() const {
35     return m_pStream ? m_pStream->GetDict() : nullptr;
36   }
GetOC()37   CPDF_Dictionary* GetOC() const { return m_pOC; }
GetDocument()38   CPDF_Document* GetDocument() const { return m_pDocument; }
39 
GetPixelHeight()40   int32_t GetPixelHeight() const { return m_Height; }
GetPixelWidth()41   int32_t GetPixelWidth() const { return m_Width; }
42 
IsInline()43   bool IsInline() const { return m_bIsInline; }
IsMask()44   bool IsMask() const { return m_bIsMask; }
IsInterpol()45   bool IsInterpol() const { return m_bInterpolate; }
46 
47   std::unique_ptr<CFX_DIBSource> LoadDIBSource() const;
48 
49   void SetImage(const CFX_DIBitmap* pDIBitmap);
50   void SetJpegImage(const CFX_RetainPtr<IFX_SeekableReadStream>& pFile);
51   void SetJpegImageInline(const CFX_RetainPtr<IFX_SeekableReadStream>& pFile);
52 
53   void ResetCache(CPDF_Page* pPage, const CFX_DIBitmap* pDIBitmap);
54 
55   bool StartLoadDIBSource(CPDF_Dictionary* pFormResource,
56                           CPDF_Dictionary* pPageResource,
57                           bool bStdCS = false,
58                           uint32_t GroupFamily = 0,
59                           bool bLoadMask = false);
60   bool Continue(IFX_Pause* pPause);
61   CFX_DIBSource* DetachBitmap();
62   CFX_DIBSource* DetachMask();
63 
64   CFX_DIBSource* m_pDIBSource = nullptr;
65   CFX_DIBSource* m_pMask = nullptr;
66   uint32_t m_MatteColor = 0;
67 
68  private:
69   void FinishInitialization();
70   std::unique_ptr<CPDF_Dictionary> InitJPEG(uint8_t* pData, uint32_t size);
71 
72   int32_t m_Height = 0;
73   int32_t m_Width = 0;
74   bool m_bIsInline = false;
75   bool m_bIsMask = false;
76   bool m_bInterpolate = false;
77   CPDF_Document* const m_pDocument;
78   CFX_MaybeOwned<CPDF_Stream> m_pStream;
79   CFX_MaybeOwned<CPDF_Dictionary> m_pDict;
80   CPDF_Dictionary* m_pOC = nullptr;
81 };
82 
83 #endif  // CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
84