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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 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 #include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h" | 7 #include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h" |
8 | 8 |
9 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" | 9 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
10 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" | 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" |
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41 m_Pattern2Form = pDict->GetMatrixBy("Matrix"); | 41 m_Pattern2Form = pDict->GetMatrixBy("Matrix"); |
42 m_pShadingObj = pDict->GetDirectObjectBy("Shading"); | 42 m_pShadingObj = pDict->GetDirectObjectBy("Shading"); |
43 if (parentMatrix) | 43 if (parentMatrix) |
44 m_Pattern2Form.Concat(*parentMatrix); | 44 m_Pattern2Form.Concat(*parentMatrix); |
45 } | 45 } |
46 for (size_t i = 0; i < FX_ArraySize(m_pFunctions); ++i) | 46 for (size_t i = 0; i < FX_ArraySize(m_pFunctions); ++i) |
47 m_pFunctions[i] = nullptr; | 47 m_pFunctions[i] = nullptr; |
48 } | 48 } |
49 | 49 |
50 CPDF_ShadingPattern::~CPDF_ShadingPattern() { | 50 CPDF_ShadingPattern::~CPDF_ShadingPattern() { |
51 for (int i = 0; i < m_nFuncs; ++i) | 51 for (size_t i = 0; i < m_nFuncs; ++i) |
52 delete m_pFunctions[i]; | 52 delete m_pFunctions[i]; |
53 | 53 |
54 CPDF_ColorSpace* pCS = m_pCountedCS ? m_pCountedCS->get() : nullptr; | 54 CPDF_ColorSpace* pCS = m_pCountedCS ? m_pCountedCS->get() : nullptr; |
55 if (pCS && m_pDocument) | 55 if (pCS && m_pDocument) |
56 m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray()); | 56 m_pDocument->GetPageData()->ReleaseColorSpace(pCS->GetArray()); |
57 } | 57 } |
58 | 58 |
59 FX_BOOL CPDF_ShadingPattern::Load() { | 59 FX_BOOL CPDF_ShadingPattern::Load() { |
60 if (m_ShadingType != kInvalidShading) | 60 if (m_ShadingType != kInvalidShading) |
61 return TRUE; | 61 return TRUE; |
62 | 62 |
63 CPDF_Dictionary* pShadingDict = | 63 CPDF_Dictionary* pShadingDict = |
64 m_pShadingObj ? m_pShadingObj->GetDict() : nullptr; | 64 m_pShadingObj ? m_pShadingObj->GetDict() : nullptr; |
65 if (!pShadingDict) | 65 if (!pShadingDict) |
66 return FALSE; | 66 return FALSE; |
67 | 67 |
68 if (m_nFuncs) { | 68 if (m_nFuncs) { |
69 for (int i = 0; i < m_nFuncs; i++) | 69 for (size_t i = 0; i < m_nFuncs; i++) |
70 delete m_pFunctions[i]; | 70 delete m_pFunctions[i]; |
71 m_nFuncs = 0; | 71 m_nFuncs = 0; |
72 } | 72 } |
73 CPDF_Object* pFunc = pShadingDict->GetDirectObjectBy("Function"); | 73 CPDF_Object* pFunc = pShadingDict->GetDirectObjectBy("Function"); |
74 if (pFunc) { | 74 if (pFunc) { |
75 if (CPDF_Array* pArray = pFunc->AsArray()) { | 75 if (CPDF_Array* pArray = pFunc->AsArray()) { |
76 m_nFuncs = std::min<int>(pArray->GetCount(), 4); | 76 m_nFuncs = std::min<size_t>(pArray->GetCount(), 4); |
77 | 77 |
78 for (int i = 0; i < m_nFuncs; i++) | 78 for (size_t i = 0; i < m_nFuncs; i++) |
79 m_pFunctions[i] = CPDF_Function::Load(pArray->GetDirectObjectAt(i)); | 79 m_pFunctions[i] = CPDF_Function::Load(pArray->GetDirectObjectAt(i)); |
80 } else { | 80 } else { |
81 m_pFunctions[0] = CPDF_Function::Load(pFunc); | 81 m_pFunctions[0] = CPDF_Function::Load(pFunc); |
82 m_nFuncs = 1; | 82 m_nFuncs = 1; |
83 } | 83 } |
84 } | 84 } |
85 CPDF_Object* pCSObj = pShadingDict->GetDirectObjectBy("ColorSpace"); | 85 CPDF_Object* pCSObj = pShadingDict->GetDirectObjectBy("ColorSpace"); |
86 if (!pCSObj) | 86 if (!pCSObj) |
87 return FALSE; | 87 return FALSE; |
88 | 88 |
89 CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); | 89 CPDF_DocPageData* pDocPageData = m_pDocument->GetPageData(); |
90 m_pCS = pDocPageData->GetColorSpace(pCSObj, nullptr); | 90 m_pCS = pDocPageData->GetColorSpace(pCSObj, nullptr); |
91 if (m_pCS) | 91 if (m_pCS) |
92 m_pCountedCS = pDocPageData->FindColorSpacePtr(m_pCS->GetArray()); | 92 m_pCountedCS = pDocPageData->FindColorSpacePtr(m_pCS->GetArray()); |
93 | 93 |
94 m_ShadingType = ToShadingType(pShadingDict->GetIntegerBy("ShadingType")); | 94 m_ShadingType = ToShadingType(pShadingDict->GetIntegerBy("ShadingType")); |
95 | 95 |
96 // We expect to have a stream if our shading type is a mesh. | 96 // We expect to have a stream if our shading type is a mesh. |
97 if (IsMeshShading() && !ToStream(m_pShadingObj)) | 97 if (IsMeshShading() && !ToStream(m_pShadingObj)) |
98 return FALSE; | 98 return FALSE; |
99 | 99 |
100 return TRUE; | 100 return TRUE; |
101 } | 101 } |
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