blob: b4636711fdd214d71b94ce4c83e871e619778024 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
#define CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
#include <memory>
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/maybe_owned.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/span.h"
class CFX_DIBBase;
class CFX_DIBitmap;
class CPDF_Document;
class CPDF_Page;
class PauseIndicatorIface;
class IFX_SeekableReadStream;
class CPDF_Image final : public Retainable {
public:
template <typename T, typename... Args>
friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
static bool IsValidJpegComponent(int32_t comps);
static bool IsValidJpegBitsPerComponent(int32_t bpc);
void ConvertStreamToIndirectObject();
CPDF_Dictionary* GetDict() const;
CPDF_Stream* GetStream() const { return m_pStream.Get(); }
const CPDF_Dictionary* GetOC() const { return m_pOC.Get(); }
CPDF_Document* GetDocument() const { return m_pDocument.Get(); }
int32_t GetPixelHeight() const { return m_Height; }
int32_t GetPixelWidth() const { return m_Width; }
bool IsInline() const { return m_bIsInline; }
bool IsMask() const { return m_bIsMask; }
bool IsInterpol() const { return m_bInterpolate; }
RetainPtr<CFX_DIBBase> LoadDIBBase() const;
void SetImage(const RetainPtr<CFX_DIBitmap>& pDIBitmap);
void SetJpegImage(const RetainPtr<IFX_SeekableReadStream>& pFile);
void SetJpegImageInline(const RetainPtr<IFX_SeekableReadStream>& pFile);
void ResetCache(CPDF_Page* pPage, const RetainPtr<CFX_DIBitmap>& pDIBitmap);
// Returns whether to Continue() or not.
bool StartLoadDIBBase(const CPDF_Dictionary* pFormResource,
CPDF_Dictionary* pPageResource,
bool bStdCS,
uint32_t GroupFamily,
bool bLoadMask);
// Returns whether to Continue() or not.
bool Continue(PauseIndicatorIface* pPause);
RetainPtr<CFX_DIBBase> DetachBitmap();
RetainPtr<CFX_DIBBase> DetachMask();
RetainPtr<CFX_DIBBase> m_pDIBBase;
RetainPtr<CFX_DIBBase> m_pMask;
uint32_t m_MatteColor = 0;
private:
explicit CPDF_Image(CPDF_Document* pDoc);
CPDF_Image(CPDF_Document* pDoc, std::unique_ptr<CPDF_Stream> pStream);
CPDF_Image(CPDF_Document* pDoc, uint32_t dwStreamObjNum);
~CPDF_Image() override;
void FinishInitialization(CPDF_Dictionary* pStreamDict);
std::unique_ptr<CPDF_Dictionary> InitJPEG(pdfium::span<uint8_t> src_span);
int32_t m_Height = 0;
int32_t m_Width = 0;
bool m_bIsInline = false;
bool m_bIsMask = false;
bool m_bInterpolate = false;
UnownedPtr<CPDF_Document> const m_pDocument;
MaybeOwned<CPDF_Stream> m_pStream;
UnownedPtr<const CPDF_Dictionary> m_pOC;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
|
