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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 "../../../include/fxcodec/fx_codec.h" | 7 #include "../../../include/fxcodec/fx_codec.h" |
8 #include "codec_int.h" | 8 #include "codec_int.h" |
9 | 9 |
10 CCodec_Jbig2Context::CCodec_Jbig2Context() { | 10 CCodec_Jbig2Context::CCodec_Jbig2Context() { |
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44 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; | 44 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; |
45 m_pJbig2Context->m_width = width; | 45 m_pJbig2Context->m_width = width; |
46 m_pJbig2Context->m_height = height; | 46 m_pJbig2Context->m_height = height; |
47 m_pJbig2Context->m_src_buf = (unsigned char*)src_buf; | 47 m_pJbig2Context->m_src_buf = (unsigned char*)src_buf; |
48 m_pJbig2Context->m_src_size = src_size; | 48 m_pJbig2Context->m_src_size = src_size; |
49 m_pJbig2Context->m_global_data = global_data; | 49 m_pJbig2Context->m_global_data = global_data; |
50 m_pJbig2Context->m_global_size = global_size; | 50 m_pJbig2Context->m_global_size = global_size; |
51 m_pJbig2Context->m_dest_buf = dest_buf; | 51 m_pJbig2Context->m_dest_buf = dest_buf; |
52 m_pJbig2Context->m_dest_pitch = dest_pitch; | 52 m_pJbig2Context->m_dest_pitch = dest_pitch; |
53 m_pJbig2Context->m_pPause = pPause; | 53 m_pJbig2Context->m_pPause = pPause; |
54 m_pJbig2Context->m_bFileReader = FALSE; | |
55 FXSYS_memset(dest_buf, 0, height * dest_pitch); | 54 FXSYS_memset(dest_buf, 0, height * dest_pitch); |
56 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext( | 55 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext( |
57 global_data, global_size, src_buf, src_size, &m_SymbolDictCache, pPause); | 56 global_data, global_size, src_buf, src_size, &m_SymbolDictCache, pPause); |
58 if (!m_pJbig2Context->m_pContext) { | 57 if (!m_pJbig2Context->m_pContext) { |
59 return FXCODEC_STATUS_ERROR; | 58 return FXCODEC_STATUS_ERROR; |
60 } | 59 } |
61 int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height, | 60 int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height, |
62 dest_pitch, pPause); | 61 dest_pitch, pPause); |
63 if (m_pJbig2Context->m_pContext->GetProcessingStatus() == | 62 if (m_pJbig2Context->m_pContext->GetProcessingStatus() == |
64 FXCODEC_STATUS_DECODE_FINISH) { | 63 FXCODEC_STATUS_DECODE_FINISH) { |
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77 return m_pJbig2Context->m_pContext->GetProcessingStatus(); | 76 return m_pJbig2Context->m_pContext->GetProcessingStatus(); |
78 } | 77 } |
79 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context, | 78 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context, |
80 IFX_Pause* pPause) { | 79 IFX_Pause* pPause) { |
81 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; | 80 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; |
82 int ret = m_pJbig2Context->m_pContext->Continue(pPause); | 81 int ret = m_pJbig2Context->m_pContext->Continue(pPause); |
83 if (m_pJbig2Context->m_pContext->GetProcessingStatus() != | 82 if (m_pJbig2Context->m_pContext->GetProcessingStatus() != |
84 FXCODEC_STATUS_DECODE_FINISH) { | 83 FXCODEC_STATUS_DECODE_FINISH) { |
85 return m_pJbig2Context->m_pContext->GetProcessingStatus(); | 84 return m_pJbig2Context->m_pContext->GetProcessingStatus(); |
86 } | 85 } |
87 if (m_pJbig2Context->m_bFileReader) { | |
88 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | |
89 m_pJbig2Context->m_pContext = NULL; | |
90 if (ret != JBIG2_SUCCESS) { | |
91 FX_Free(m_pJbig2Context->m_src_buf); | |
92 m_pJbig2Context->m_src_buf = NULL; | |
93 return FXCODEC_STATUS_ERROR; | |
94 } | |
95 delete m_pJbig2Context->m_dest_image; | |
96 FX_Free(m_pJbig2Context->m_src_buf); | |
97 return FXCODEC_STATUS_DECODE_FINISH; | |
98 } | |
99 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | 86 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); |
100 m_pJbig2Context->m_pContext = NULL; | 87 m_pJbig2Context->m_pContext = NULL; |
101 if (ret != JBIG2_SUCCESS) { | 88 if (ret != JBIG2_SUCCESS) { |
102 return FXCODEC_STATUS_ERROR; | 89 return FXCODEC_STATUS_ERROR; |
103 } | 90 } |
104 int dword_size = | 91 int dword_size = |
105 m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4; | 92 m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4; |
106 FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf; | 93 FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf; |
107 for (int i = 0; i < dword_size; i++) { | 94 for (int i = 0; i < dword_size; i++) { |
108 dword_buf[i] = ~dword_buf[i]; | 95 dword_buf[i] = ~dword_buf[i]; |
109 } | 96 } |
110 return FXCODEC_STATUS_DECODE_FINISH; | 97 return FXCODEC_STATUS_DECODE_FINISH; |
111 } | 98 } |
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