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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_parser/cpdf_hint_tables.h" | 7 #include "core/fpdfapi/fpdf_parser/cpdf_hint_tables.h" |
| 8 | 8 |
| 9 #include "core/fpdfapi/fpdf_parser/cpdf_data_avail.h" | 9 #include "core/fpdfapi/fpdf_parser/cpdf_data_avail.h" |
| 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" | 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
| 11 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" | 11 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" |
| 12 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" | 12 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" |
| 13 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h" | 13 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h" |
| 14 #include "core/include/fxcrt/fx_safe_types.h" | 14 #include "core/fxcrt/include/fx_safe_types.h" |
| 15 | 15 |
| 16 namespace { | 16 namespace { |
| 17 | 17 |
| 18 bool CanReadFromBitStream(const CFX_BitStream* hStream, | 18 bool CanReadFromBitStream(const CFX_BitStream* hStream, |
| 19 const FX_SAFE_DWORD& num_bits) { | 19 const FX_SAFE_DWORD& num_bits) { |
| 20 return num_bits.IsValid() && | 20 return num_bits.IsValid() && |
| 21 hStream->BitsRemaining() >= num_bits.ValueOrDie(); | 21 hStream->BitsRemaining() >= num_bits.ValueOrDie(); |
| 22 } | 22 } |
| 23 | 23 |
| 24 } // namespace | 24 } // namespace |
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| 461 CPDF_Array* pRange = m_pLinearizedDict->GetArrayBy("H"); | 461 CPDF_Array* pRange = m_pLinearizedDict->GetArrayBy("H"); |
| 462 if (!pRange) | 462 if (!pRange) |
| 463 return -1; | 463 return -1; |
| 464 | 464 |
| 465 CPDF_Object* pStreamLen = pRange->GetElementValue(1); | 465 CPDF_Object* pStreamLen = pRange->GetElementValue(1); |
| 466 if (!pStreamLen) | 466 if (!pStreamLen) |
| 467 return -1; | 467 return -1; |
| 468 | 468 |
| 469 return pStreamLen->GetInteger(); | 469 return pStreamLen->GetInteger(); |
| 470 } | 470 } |
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