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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() { |
11 { | 11 FXSYS_memset(this, 0, sizeof(CCodec_Jbig2Context)); |
12 FXSYS_memset(this, 0, sizeof(CCodec_Jbig2Context)); | 12 } |
13 } | 13 CCodec_Jbig2Module::~CCodec_Jbig2Module() {} |
14 CCodec_Jbig2Module::~CCodec_Jbig2Module() | 14 void* CCodec_Jbig2Module::CreateJbig2Context() { |
15 { | 15 return new CCodec_Jbig2Context(); |
16 } | 16 } |
17 void* CCodec_Jbig2Module::CreateJbig2Context() | 17 void CCodec_Jbig2Module::DestroyJbig2Context(void* pJbig2Content) { |
18 { | 18 if (pJbig2Content) { |
19 return new CCodec_Jbig2Context(); | 19 CJBig2_Context::DestroyContext( |
20 } | 20 ((CCodec_Jbig2Context*)pJbig2Content)->m_pContext); |
21 void CCodec_Jbig2Module::DestroyJbig2Context(void* pJbig2Content) | 21 delete (CCodec_Jbig2Context*)pJbig2Content; |
22 { | 22 } |
23 if(pJbig2Content) { | 23 pJbig2Content = NULL; |
24 CJBig2_Context::DestroyContext(((CCodec_Jbig2Context*)pJbig2Content)->m_
pContext); | 24 } |
25 delete (CCodec_Jbig2Context*)pJbig2Content; | 25 FX_BOOL CCodec_Jbig2Module::Decode(FX_DWORD width, |
26 } | 26 FX_DWORD height, |
27 pJbig2Content = NULL; | 27 const uint8_t* src_buf, |
28 } | 28 FX_DWORD src_size, |
29 FX_BOOL CCodec_Jbig2Module::Decode(FX_DWORD width, FX_DWORD height, const uint8_
t* src_buf, FX_DWORD src_size, | 29 const uint8_t* global_data, |
30 const uint8_t* global_data, FX_DWORD global_s
ize, uint8_t* dest_buf, FX_DWORD dest_pitch) | 30 FX_DWORD global_size, |
31 { | 31 uint8_t* dest_buf, |
32 FXSYS_memset(dest_buf, 0, height * dest_pitch); | 32 FX_DWORD dest_pitch) { |
33 CJBig2_Context* pContext = CJBig2_Context::CreateContext(&m_Module, | 33 FXSYS_memset(dest_buf, 0, height * dest_pitch); |
34 (uint8_t*)global_data, global_size, (uint8_t*)src
_buf, src_size, JBIG2_EMBED_STREAM, &m_SymbolDictCache); | 34 CJBig2_Context* pContext = CJBig2_Context::CreateContext( |
35 if (pContext == NULL) { | 35 &m_Module, (uint8_t*)global_data, global_size, (uint8_t*)src_buf, |
36 return FALSE; | 36 src_size, JBIG2_EMBED_STREAM, &m_SymbolDictCache); |
37 } | 37 if (pContext == NULL) { |
38 int ret = pContext->getFirstPage(dest_buf, width, height, dest_pitch, NULL); | 38 return FALSE; |
39 CJBig2_Context::DestroyContext(pContext); | 39 } |
| 40 int ret = pContext->getFirstPage(dest_buf, width, height, dest_pitch, NULL); |
| 41 CJBig2_Context::DestroyContext(pContext); |
| 42 if (ret != JBIG2_SUCCESS) { |
| 43 return FALSE; |
| 44 } |
| 45 int dword_size = height * dest_pitch / 4; |
| 46 FX_DWORD* dword_buf = (FX_DWORD*)dest_buf; |
| 47 for (int i = 0; i < dword_size; i++) { |
| 48 dword_buf[i] = ~dword_buf[i]; |
| 49 } |
| 50 return TRUE; |
| 51 } |
| 52 FX_BOOL CCodec_Jbig2Module::Decode(IFX_FileRead* file_ptr, |
| 53 FX_DWORD& width, |
| 54 FX_DWORD& height, |
| 55 FX_DWORD& pitch, |
| 56 uint8_t*& dest_buf) { |
| 57 CJBig2_Context* pContext = NULL; |
| 58 CJBig2_Image* dest_image = NULL; |
| 59 FX_DWORD src_size = (FX_DWORD)file_ptr->GetSize(); |
| 60 uint8_t* src_buf = FX_Alloc(uint8_t, src_size); |
| 61 int ret = 0; |
| 62 if (!file_ptr->ReadBlock(src_buf, 0, src_size)) { |
| 63 goto failed; |
| 64 } |
| 65 pContext = |
| 66 CJBig2_Context::CreateContext(&m_Module, NULL, 0, src_buf, src_size, |
| 67 JBIG2_FILE_STREAM, &m_SymbolDictCache); |
| 68 if (pContext == NULL) { |
| 69 goto failed; |
| 70 } |
| 71 ret = pContext->getFirstPage(&dest_image, NULL); |
| 72 CJBig2_Context::DestroyContext(pContext); |
| 73 if (ret != JBIG2_SUCCESS) { |
| 74 goto failed; |
| 75 } |
| 76 width = (FX_DWORD)dest_image->m_nWidth; |
| 77 height = (FX_DWORD)dest_image->m_nHeight; |
| 78 pitch = (FX_DWORD)dest_image->m_nStride; |
| 79 dest_buf = dest_image->m_pData; |
| 80 dest_image->m_bNeedFree = FALSE; |
| 81 delete dest_image; |
| 82 FX_Free(src_buf); |
| 83 return TRUE; |
| 84 failed: |
| 85 if (src_buf) { |
| 86 FX_Free(src_buf); |
| 87 } |
| 88 return FALSE; |
| 89 } |
| 90 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, |
| 91 FX_DWORD width, |
| 92 FX_DWORD height, |
| 93 const uint8_t* src_buf, |
| 94 FX_DWORD src_size, |
| 95 const uint8_t* global_data, |
| 96 FX_DWORD global_size, |
| 97 uint8_t* dest_buf, |
| 98 FX_DWORD dest_pitch, |
| 99 IFX_Pause* pPause) { |
| 100 if (!pJbig2Context) { |
| 101 return FXCODEC_STATUS_ERR_PARAMS; |
| 102 } |
| 103 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; |
| 104 m_pJbig2Context->m_width = width; |
| 105 m_pJbig2Context->m_height = height; |
| 106 m_pJbig2Context->m_src_buf = (unsigned char*)src_buf; |
| 107 m_pJbig2Context->m_src_size = src_size; |
| 108 m_pJbig2Context->m_global_data = global_data; |
| 109 m_pJbig2Context->m_global_size = global_size; |
| 110 m_pJbig2Context->m_dest_buf = dest_buf; |
| 111 m_pJbig2Context->m_dest_pitch = dest_pitch; |
| 112 m_pJbig2Context->m_pPause = pPause; |
| 113 m_pJbig2Context->m_bFileReader = FALSE; |
| 114 FXSYS_memset(dest_buf, 0, height * dest_pitch); |
| 115 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext( |
| 116 &m_Module, (uint8_t*)global_data, global_size, (uint8_t*)src_buf, |
| 117 src_size, JBIG2_EMBED_STREAM, &m_SymbolDictCache, pPause); |
| 118 if (!m_pJbig2Context->m_pContext) { |
| 119 return FXCODEC_STATUS_ERROR; |
| 120 } |
| 121 int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height, |
| 122 dest_pitch, pPause); |
| 123 if (m_pJbig2Context->m_pContext->GetProcessiveStatus() == |
| 124 FXCODEC_STATUS_DECODE_FINISH) { |
| 125 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); |
| 126 m_pJbig2Context->m_pContext = NULL; |
40 if (ret != JBIG2_SUCCESS) { | 127 if (ret != JBIG2_SUCCESS) { |
41 return FALSE; | 128 return FXCODEC_STATUS_ERROR; |
42 } | 129 } |
43 int dword_size = height * dest_pitch / 4; | 130 int dword_size = height * dest_pitch / 4; |
44 FX_DWORD* dword_buf = (FX_DWORD*)dest_buf; | 131 FX_DWORD* dword_buf = (FX_DWORD*)dest_buf; |
45 for (int i = 0; i < dword_size; i ++) { | 132 for (int i = 0; i < dword_size; i++) { |
46 dword_buf[i] = ~dword_buf[i]; | 133 dword_buf[i] = ~dword_buf[i]; |
47 } | 134 } |
48 return TRUE; | 135 return FXCODEC_STATUS_DECODE_FINISH; |
49 } | 136 } |
50 FX_BOOL CCodec_Jbig2Module::Decode(IFX_FileRead* file_ptr, | 137 return m_pJbig2Context->m_pContext->GetProcessiveStatus(); |
51 FX_DWORD& width, FX_DWORD& height, FX_DWORD&
pitch, uint8_t*& dest_buf) | 138 } |
52 { | 139 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, |
53 CJBig2_Context* pContext = NULL; | 140 IFX_FileRead* file_ptr, |
54 CJBig2_Image* dest_image = NULL; | 141 FX_DWORD& width, |
55 FX_DWORD src_size = (FX_DWORD)file_ptr->GetSize(); | 142 FX_DWORD& height, |
56 uint8_t* src_buf = FX_Alloc(uint8_t, src_size); | 143 FX_DWORD& pitch, |
57 int ret = 0; | 144 uint8_t*& dest_buf, |
58 if(!file_ptr->ReadBlock(src_buf, 0, src_size)) { | 145 IFX_Pause* pPause) { |
59 goto failed; | 146 if (!pJbig2Context) { |
60 } | 147 return FXCODEC_STATUS_ERR_PARAMS; |
61 pContext = CJBig2_Context::CreateContext(&m_Module, NULL, 0, src_buf, src_si
ze, JBIG2_FILE_STREAM, &m_SymbolDictCache); | 148 } |
62 if(pContext == NULL) { | 149 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; |
63 goto failed; | 150 m_pJbig2Context->m_bFileReader = TRUE; |
64 } | 151 m_pJbig2Context->m_dest_image = NULL; |
65 ret = pContext->getFirstPage(&dest_image, NULL); | 152 m_pJbig2Context->m_src_size = (FX_DWORD)file_ptr->GetSize(); |
66 CJBig2_Context::DestroyContext(pContext); | 153 m_pJbig2Context->m_src_buf = FX_Alloc(uint8_t, m_pJbig2Context->m_src_size); |
67 if (ret != JBIG2_SUCCESS) { | 154 int ret = 0; |
68 goto failed; | 155 if (!file_ptr->ReadBlock((void*)m_pJbig2Context->m_src_buf, 0, |
69 } | 156 m_pJbig2Context->m_src_size)) { |
70 width = (FX_DWORD)dest_image->m_nWidth; | 157 goto failed; |
71 height = (FX_DWORD)dest_image->m_nHeight; | 158 } |
72 pitch = (FX_DWORD)dest_image->m_nStride; | 159 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext( |
73 dest_buf = dest_image->m_pData; | 160 &m_Module, NULL, 0, m_pJbig2Context->m_src_buf, |
74 dest_image->m_bNeedFree = FALSE; | 161 m_pJbig2Context->m_src_size, JBIG2_FILE_STREAM, &m_SymbolDictCache, |
75 delete dest_image; | 162 pPause); |
76 FX_Free(src_buf); | 163 if (m_pJbig2Context->m_pContext == NULL) { |
77 return TRUE; | 164 goto failed; |
78 failed: | 165 } |
79 if(src_buf) { | 166 ret = m_pJbig2Context->m_pContext->getFirstPage( |
80 FX_Free(src_buf); | 167 &m_pJbig2Context->m_dest_image, pPause); |
81 } | 168 if (m_pJbig2Context->m_pContext->GetProcessiveStatus() == |
82 return FALSE; | 169 FXCODEC_STATUS_DECODE_TOBECONTINUE) { |
83 } | |
84 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, FX_DWORD wid
th, FX_DWORD height, const uint8_t* src_buf, FX_DWORD src_size, | |
85 const uint8_t* global_data, FX_DWORD global_size, uint8_t* dest_buf, FX_
DWORD dest_pitch, IFX_Pause* pPause) | |
86 { | |
87 if(!pJbig2Context) { | |
88 return FXCODEC_STATUS_ERR_PARAMS; | |
89 } | |
90 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; | |
91 m_pJbig2Context->m_width = width; | |
92 m_pJbig2Context->m_height = height; | |
93 m_pJbig2Context->m_src_buf = (unsigned char *)src_buf; | |
94 m_pJbig2Context->m_src_size = src_size; | |
95 m_pJbig2Context->m_global_data = global_data; | |
96 m_pJbig2Context->m_global_size = global_size; | |
97 m_pJbig2Context->m_dest_buf = dest_buf; | |
98 m_pJbig2Context->m_dest_pitch = dest_pitch; | |
99 m_pJbig2Context->m_pPause = pPause; | |
100 m_pJbig2Context->m_bFileReader = FALSE; | |
101 FXSYS_memset(dest_buf, 0, height * dest_pitch); | |
102 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(&m_Module, | |
103 (uint8_t*)global_data, global_size, (uint8_t*)
src_buf, src_size, JBIG2_EMBED_STREAM, &m_SymbolDictCache, pPause); | |
104 if(!m_pJbig2Context->m_pContext) { | |
105 return FXCODEC_STATUS_ERROR; | |
106 } | |
107 int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height,
dest_pitch, pPause); | |
108 if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECO
DE_FINISH) { | |
109 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | |
110 m_pJbig2Context->m_pContext = NULL; | |
111 if (ret != JBIG2_SUCCESS) { | |
112 return FXCODEC_STATUS_ERROR; | |
113 } | |
114 int dword_size = height * dest_pitch / 4; | |
115 FX_DWORD* dword_buf = (FX_DWORD*)dest_buf; | |
116 for (int i = 0; i < dword_size; i ++) { | |
117 dword_buf[i] = ~dword_buf[i]; | |
118 } | |
119 return FXCODEC_STATUS_DECODE_FINISH; | |
120 } | |
121 return m_pJbig2Context->m_pContext->GetProcessiveStatus(); | |
122 } | |
123 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, IFX_FileRead
* file_ptr, | |
124 FX_DWORD& width, FX_DWORD& height, FX_DWORD& pitch, uint8_t*& dest_buf,
IFX_Pause* pPause) | |
125 { | |
126 if(!pJbig2Context) { | |
127 return FXCODEC_STATUS_ERR_PARAMS; | |
128 } | |
129 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; | |
130 m_pJbig2Context->m_bFileReader = TRUE; | |
131 m_pJbig2Context->m_dest_image = NULL; | |
132 m_pJbig2Context->m_src_size = (FX_DWORD)file_ptr->GetSize(); | |
133 m_pJbig2Context->m_src_buf = FX_Alloc(uint8_t, m_pJbig2Context->m_src_size); | |
134 int ret = 0; | |
135 if(!file_ptr->ReadBlock((void*)m_pJbig2Context->m_src_buf, 0, m_pJbig2Contex
t->m_src_size)) { | |
136 goto failed; | |
137 } | |
138 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(&m_Module, NULL,
0, m_pJbig2Context->m_src_buf, m_pJbig2Context->m_src_size, JBIG2_FILE_STREAM,
&m_SymbolDictCache, pPause); | |
139 if(m_pJbig2Context->m_pContext == NULL) { | |
140 goto failed; | |
141 } | |
142 ret = m_pJbig2Context->m_pContext->getFirstPage(&m_pJbig2Context->m_dest_ima
ge, pPause); | |
143 if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECO
DE_TOBECONTINUE) { | |
144 width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth; | |
145 height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight; | |
146 pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride; | |
147 dest_buf = m_pJbig2Context->m_dest_image->m_pData; | |
148 m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE; | |
149 return FXCODEC_STATUS_DECODE_TOBECONTINUE; | |
150 } | |
151 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | |
152 m_pJbig2Context->m_pContext = NULL; | |
153 if (ret != JBIG2_SUCCESS) { | |
154 goto failed; | |
155 } | |
156 width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth; | 170 width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth; |
157 height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight; | 171 height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight; |
158 pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride; | 172 pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride; |
159 dest_buf = m_pJbig2Context->m_dest_image->m_pData; | 173 dest_buf = m_pJbig2Context->m_dest_image->m_pData; |
160 m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE; | 174 m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE; |
| 175 return FXCODEC_STATUS_DECODE_TOBECONTINUE; |
| 176 } |
| 177 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); |
| 178 m_pJbig2Context->m_pContext = NULL; |
| 179 if (ret != JBIG2_SUCCESS) { |
| 180 goto failed; |
| 181 } |
| 182 width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth; |
| 183 height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight; |
| 184 pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride; |
| 185 dest_buf = m_pJbig2Context->m_dest_image->m_pData; |
| 186 m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE; |
| 187 delete m_pJbig2Context->m_dest_image; |
| 188 FX_Free(m_pJbig2Context->m_src_buf); |
| 189 return FXCODEC_STATUS_DECODE_FINISH; |
| 190 failed: |
| 191 if (m_pJbig2Context->m_src_buf) { |
| 192 FX_Free(m_pJbig2Context->m_src_buf); |
| 193 } |
| 194 m_pJbig2Context->m_src_buf = NULL; |
| 195 return FXCODEC_STATUS_ERROR; |
| 196 } |
| 197 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context, |
| 198 IFX_Pause* pPause) { |
| 199 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; |
| 200 int ret = m_pJbig2Context->m_pContext->Continue(pPause); |
| 201 if (m_pJbig2Context->m_pContext->GetProcessiveStatus() != |
| 202 FXCODEC_STATUS_DECODE_FINISH) { |
| 203 return m_pJbig2Context->m_pContext->GetProcessiveStatus(); |
| 204 } |
| 205 if (m_pJbig2Context->m_bFileReader) { |
| 206 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); |
| 207 m_pJbig2Context->m_pContext = NULL; |
| 208 if (ret != JBIG2_SUCCESS) { |
| 209 if (m_pJbig2Context->m_src_buf) { |
| 210 FX_Free(m_pJbig2Context->m_src_buf); |
| 211 } |
| 212 m_pJbig2Context->m_src_buf = NULL; |
| 213 return FXCODEC_STATUS_ERROR; |
| 214 } |
161 delete m_pJbig2Context->m_dest_image; | 215 delete m_pJbig2Context->m_dest_image; |
162 FX_Free(m_pJbig2Context->m_src_buf); | 216 FX_Free(m_pJbig2Context->m_src_buf); |
163 return FXCODEC_STATUS_DECODE_FINISH; | 217 return FXCODEC_STATUS_DECODE_FINISH; |
164 failed: | 218 } |
165 if(m_pJbig2Context->m_src_buf) { | 219 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); |
166 FX_Free(m_pJbig2Context->m_src_buf); | 220 m_pJbig2Context->m_pContext = NULL; |
167 } | 221 if (ret != JBIG2_SUCCESS) { |
168 m_pJbig2Context->m_src_buf = NULL; | |
169 return FXCODEC_STATUS_ERROR; | 222 return FXCODEC_STATUS_ERROR; |
170 } | 223 } |
171 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context, IFX_Pause
* pPause) | 224 int dword_size = |
172 { | 225 m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4; |
173 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; | 226 FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf; |
174 int ret = m_pJbig2Context->m_pContext->Continue(pPause); | 227 for (int i = 0; i < dword_size; i++) { |
175 if (m_pJbig2Context->m_pContext->GetProcessiveStatus() != FXCODEC_STATUS_DEC
ODE_FINISH) { | 228 dword_buf[i] = ~dword_buf[i]; |
176 return m_pJbig2Context->m_pContext->GetProcessiveStatus(); | 229 } |
177 } | 230 return FXCODEC_STATUS_DECODE_FINISH; |
178 if (m_pJbig2Context->m_bFileReader) { | 231 } |
179 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | |
180 m_pJbig2Context->m_pContext = NULL; | |
181 if (ret != JBIG2_SUCCESS) { | |
182 if(m_pJbig2Context->m_src_buf) { | |
183 FX_Free(m_pJbig2Context->m_src_buf); | |
184 } | |
185 m_pJbig2Context->m_src_buf = NULL; | |
186 return FXCODEC_STATUS_ERROR; | |
187 } | |
188 delete m_pJbig2Context->m_dest_image; | |
189 FX_Free(m_pJbig2Context->m_src_buf); | |
190 return FXCODEC_STATUS_DECODE_FINISH; | |
191 } | |
192 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); | |
193 m_pJbig2Context->m_pContext = NULL; | |
194 if (ret != JBIG2_SUCCESS) { | |
195 return FXCODEC_STATUS_ERROR; | |
196 } | |
197 int dword_size = m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch /
4; | |
198 FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf; | |
199 for (int i = 0; i < dword_size; i ++) { | |
200 dword_buf[i] = ~dword_buf[i]; | |
201 } | |
202 return FXCODEC_STATUS_DECODE_FINISH; | |
203 } | |
204 | |
205 | |
206 | |
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