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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
// 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_COLORSPACE_H_
#define CORE_FPDFAPI_PAGE_CPDF_COLORSPACE_H_
#include <memory>
#include <set>
#include "core/fpdfapi/page/cpdf_pattern.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
#define PDFCS_DEVICEGRAY 1
#define PDFCS_DEVICERGB 2
#define PDFCS_DEVICECMYK 3
#define PDFCS_CALGRAY 4
#define PDFCS_CALRGB 5
#define PDFCS_LAB 6
#define PDFCS_ICCBASED 7
#define PDFCS_SEPARATION 8
#define PDFCS_DEVICEN 9
#define PDFCS_INDEXED 10
#define PDFCS_PATTERN 11
class CPDF_Array;
class CPDF_Document;
class CPDF_Object;
constexpr size_t kMaxPatternColorComps = 16;
struct PatternValue {
CPDF_Pattern* m_pPattern;
CPDF_CountedPattern* m_pCountedPattern;
int m_nComps;
float m_Comps[kMaxPatternColorComps];
};
class CPDF_ColorSpace {
public:
static CPDF_ColorSpace* GetStockCS(int Family);
static CPDF_ColorSpace* ColorspaceFromName(const ByteString& name);
static std::unique_ptr<CPDF_ColorSpace> Load(CPDF_Document* pDoc,
CPDF_Object* pCSObj);
static std::unique_ptr<CPDF_ColorSpace> Load(
CPDF_Document* pDoc,
CPDF_Object* pCSObj,
std::set<CPDF_Object*>* pVisited);
void Release();
int GetBufSize() const;
float* CreateBuf();
void GetDefaultColor(float* buf) const;
uint32_t CountComponents() const;
int GetFamily() const { return m_Family; }
bool IsSpecial() const {
return GetFamily() == PDFCS_SEPARATION || GetFamily() == PDFCS_DEVICEN ||
GetFamily() == PDFCS_INDEXED || GetFamily() == PDFCS_PATTERN;
}
virtual void GetDefaultValue(int iComponent,
float* value,
float* min,
float* max) const;
virtual bool GetRGB(float* pBuf, float* R, float* G, float* B) const = 0;
virtual void TranslateImageLine(uint8_t* dest_buf,
const uint8_t* src_buf,
int pixels,
int image_width,
int image_height,
bool bTransMask) const;
virtual void EnableStdConversion(bool bEnabled);
CPDF_Array* GetArray() const { return m_pArray.Get(); }
CPDF_Document* GetDocument() const { return m_pDocument.Get(); }
protected:
CPDF_ColorSpace(CPDF_Document* pDoc, int family);
virtual ~CPDF_ColorSpace();
// Returns the number of components, or 0 on failure.
virtual uint32_t v_Load(CPDF_Document* pDoc,
CPDF_Array* pArray,
std::set<CPDF_Object*>* pVisited) = 0;
// Stock colorspaces are not loaded normally. This initializes their
// components count.
void SetComponentsForStockCS(uint32_t nComponents);
UnownedPtr<CPDF_Document> const m_pDocument;
UnownedPtr<CPDF_Array> m_pArray;
const int m_Family;
uint32_t m_dwStdConversion = 0;
private:
uint32_t m_nComponents = 0;
};
using CPDF_CountedColorSpace = CPDF_CountedObject<CPDF_ColorSpace>;
namespace std {
// Make std::unique_ptr<CPDF_ColorSpace> call Release() rather than
// simply deleting the object.
template <>
struct default_delete<CPDF_ColorSpace> {
void operator()(CPDF_ColorSpace* pColorSpace) const {
if (pColorSpace)
pColorSpace->Release();
}
};
} // namespace std
#endif // CORE_FPDFAPI_PAGE_CPDF_COLORSPACE_H_
|
