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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_meshstream.h" | 7 #include "core/fpdfapi/fpdf_page/cpdf_meshstream.h" |
8 | 8 |
9 #include "core/fpdfapi/fpdf_page/include/cpdf_colorspace.h" | 9 #include "core/fpdfapi/fpdf_page/include/cpdf_colorspace.h" |
10 #include "core/fpdfapi/fpdf_page/pageint.h" | 10 #include "core/fpdfapi/fpdf_page/pageint.h" |
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103 m_ymin(0), | 103 m_ymin(0), |
104 m_ymax(0) { | 104 m_ymax(0) { |
105 memset(&m_ColorMin, 0, sizeof(m_ColorMin)); | 105 memset(&m_ColorMin, 0, sizeof(m_ColorMin)); |
106 memset(&m_ColorMax, 0, sizeof(m_ColorMax)); | 106 memset(&m_ColorMax, 0, sizeof(m_ColorMax)); |
107 } | 107 } |
108 | 108 |
109 bool CPDF_MeshStream::Load() { | 109 bool CPDF_MeshStream::Load() { |
110 m_Stream.LoadAllData(m_pShadingStream); | 110 m_Stream.LoadAllData(m_pShadingStream); |
111 m_BitStream.Init(m_Stream.GetData(), m_Stream.GetSize()); | 111 m_BitStream.Init(m_Stream.GetData(), m_Stream.GetSize()); |
112 CPDF_Dictionary* pDict = m_pShadingStream->GetDict(); | 112 CPDF_Dictionary* pDict = m_pShadingStream->GetDict(); |
113 m_nCoordBits = pDict->GetIntegerBy("BitsPerCoordinate"); | 113 m_nCoordBits = pDict->GetIntegerFor("BitsPerCoordinate"); |
114 m_nComponentBits = pDict->GetIntegerBy("BitsPerComponent"); | 114 m_nComponentBits = pDict->GetIntegerFor("BitsPerComponent"); |
115 if (ShouldCheckBPC(m_type)) { | 115 if (ShouldCheckBPC(m_type)) { |
116 if (!IsValidBitsPerCoordinate(m_nCoordBits)) | 116 if (!IsValidBitsPerCoordinate(m_nCoordBits)) |
117 return false; | 117 return false; |
118 if (!IsValidBitsPerComponent(m_nComponentBits)) | 118 if (!IsValidBitsPerComponent(m_nComponentBits)) |
119 return false; | 119 return false; |
120 } | 120 } |
121 | 121 |
122 m_nFlagBits = pDict->GetIntegerBy("BitsPerFlag"); | 122 m_nFlagBits = pDict->GetIntegerFor("BitsPerFlag"); |
123 if (ShouldCheckBitsPerFlag(m_type) && !IsValidBitsPerFlag(m_nFlagBits)) | 123 if (ShouldCheckBitsPerFlag(m_type) && !IsValidBitsPerFlag(m_nFlagBits)) |
124 return false; | 124 return false; |
125 | 125 |
126 uint32_t nComponents = m_pCS->CountComponents(); | 126 uint32_t nComponents = m_pCS->CountComponents(); |
127 if (nComponents > kMaxComponents) | 127 if (nComponents > kMaxComponents) |
128 return false; | 128 return false; |
129 | 129 |
130 m_nComponents = m_funcs.empty() ? nComponents : 1; | 130 m_nComponents = m_funcs.empty() ? nComponents : 1; |
131 CPDF_Array* pDecode = pDict->GetArrayBy("Decode"); | 131 CPDF_Array* pDecode = pDict->GetArrayFor("Decode"); |
132 if (!pDecode || pDecode->GetCount() != 4 + m_nComponents * 2) | 132 if (!pDecode || pDecode->GetCount() != 4 + m_nComponents * 2) |
133 return false; | 133 return false; |
134 | 134 |
135 m_xmin = pDecode->GetNumberAt(0); | 135 m_xmin = pDecode->GetNumberAt(0); |
136 m_xmax = pDecode->GetNumberAt(1); | 136 m_xmax = pDecode->GetNumberAt(1); |
137 m_ymin = pDecode->GetNumberAt(2); | 137 m_ymin = pDecode->GetNumberAt(2); |
138 m_ymax = pDecode->GetNumberAt(3); | 138 m_ymax = pDecode->GetNumberAt(3); |
139 for (uint32_t i = 0; i < m_nComponents; ++i) { | 139 for (uint32_t i = 0; i < m_nComponents; ++i) { |
140 m_ColorMin[i] = pDecode->GetNumberAt(i * 2 + 4); | 140 m_ColorMin[i] = pDecode->GetNumberAt(i * 2 + 4); |
141 m_ColorMax[i] = pDecode->GetNumberAt(i * 2 + 5); | 141 m_ColorMax[i] = pDecode->GetNumberAt(i * 2 + 5); |
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208 if (m_BitStream.IsEOF()) | 208 if (m_BitStream.IsEOF()) |
209 return FALSE; | 209 return FALSE; |
210 | 210 |
211 GetCoords(vertex[i].x, vertex[i].y); | 211 GetCoords(vertex[i].x, vertex[i].y); |
212 pObject2Bitmap->Transform(vertex[i].x, vertex[i].y); | 212 pObject2Bitmap->Transform(vertex[i].x, vertex[i].y); |
213 GetColor(vertex[i].r, vertex[i].g, vertex[i].b); | 213 GetColor(vertex[i].r, vertex[i].g, vertex[i].b); |
214 m_BitStream.ByteAlign(); | 214 m_BitStream.ByteAlign(); |
215 } | 215 } |
216 return TRUE; | 216 return TRUE; |
217 } | 217 } |
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