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Side by Side Diff: core/src/fxcodec/codec/fx_codec_flate.cpp

Issue 1087053002: Merge to XFA: Kill CFX_Object. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: Created 5 years, 8 months ago
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1 // Copyright 2014 PDFium Authors. All rights reserved. 1 // Copyright 2014 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 "../../fx_zlib.h" 7 #include "../../fx_zlib.h"
8 #include "../../../include/fxcodec/fx_codec.h" 8 #include "../../../include/fxcodec/fx_codec.h"
9 #include "codec_int.h" 9 #include "codec_int.h"
10 extern "C" 10 extern "C"
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67 void FPDFAPI_FlateEnd(void* context) 67 void FPDFAPI_FlateEnd(void* context)
68 { 68 {
69 inflateEnd((z_stream*)context); 69 inflateEnd((z_stream*)context);
70 ((z_stream*)context)->zfree(0, context); 70 ((z_stream*)context)->zfree(0, context);
71 } 71 }
72 void FPDFAPI_FlateCompress(unsigned char* dest_buf, unsigned long* dest_size , const unsigned char* src_buf, unsigned long src_size) 72 void FPDFAPI_FlateCompress(unsigned char* dest_buf, unsigned long* dest_size , const unsigned char* src_buf, unsigned long src_size)
73 { 73 {
74 compress(dest_buf, dest_size, src_buf, src_size); 74 compress(dest_buf, dest_size, src_buf, src_size);
75 } 75 }
76 } 76 }
77 class CLZWDecoder : public CFX_Object 77 class CLZWDecoder
78 { 78 {
79 public: 79 public:
80 FX_BOOL Decode(FX_LPBYTE output, FX_DWORD& outlen, const FX_BYTE* input, FX_ DWORD& size, FX_BOOL bEarlyChange); 80 FX_BOOL Decode(FX_LPBYTE output, FX_DWORD& outlen, const FX_BYTE* input, FX_ DWORD& size, FX_BOOL bEarlyChange);
81 private: 81 private:
82 FX_DWORD m_InPos; 82 FX_DWORD m_InPos;
83 FX_DWORD m_OutPos; 83 FX_DWORD m_OutPos;
84 FX_LPBYTE m_pOutput; 84 FX_LPBYTE m_pOutput;
85 const FX_BYTE* m_pInput; 85 const FX_BYTE* m_pInput;
86 FX_BOOL m_Early; 86 FX_BOOL m_Early;
87 void AddCode(FX_DWORD prefix_code, FX_BYTE append_char); 87 void AddCode(FX_DWORD prefix_code, FX_BYTE append_char);
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937 dest_size = src_size + src_size / 1000 + 12; 937 dest_size = src_size + src_size / 1000 + 12;
938 dest_buf = FX_Alloc( FX_BYTE, dest_size); 938 dest_buf = FX_Alloc( FX_BYTE, dest_size);
939 if (dest_buf == NULL) { 939 if (dest_buf == NULL) {
940 return FALSE; 940 return FALSE;
941 } 941 }
942 unsigned long temp_size = dest_size; 942 unsigned long temp_size = dest_size;
943 FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size); 943 FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size);
944 dest_size = (FX_DWORD)temp_size; 944 dest_size = (FX_DWORD)temp_size;
945 return TRUE; 945 return TRUE;
946 } 946 }
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