Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(583)

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

Issue 1800523005: Move core/src/ up to core/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « core/src/fxcodec/codec/fx_codec_icc.cpp ('k') | core/src/fxcodec/codec/fx_codec_jpeg.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include <list>
8
9 #include "core/include/fxcodec/fx_codec.h"
10 #include "core/src/fxcodec/codec/codec_int.h"
11
12 // Holds per-document JBig2 related data.
13 class JBig2DocumentContext : public CFX_DestructObject {
14 public:
15 std::list<CJBig2_CachePair>* GetSymbolDictCache() {
16 return &m_SymbolDictCache;
17 }
18
19 ~JBig2DocumentContext() override {
20 for (auto it : m_SymbolDictCache) {
21 delete it.second;
22 }
23 }
24
25 private:
26 std::list<CJBig2_CachePair> m_SymbolDictCache;
27 };
28
29 JBig2DocumentContext* GetJBig2DocumentContext(CCodec_Jbig2Module* pModule,
30 CFX_PrivateData* pPrivateData) {
31 void* pModulePrivateData = pPrivateData->GetPrivateData(pModule);
32 if (pModulePrivateData) {
33 CFX_DestructObject* pDestructObject =
34 reinterpret_cast<CFX_DestructObject*>(pModulePrivateData);
35 return static_cast<JBig2DocumentContext*>(pDestructObject);
36 }
37 JBig2DocumentContext* pJBig2DocumentContext = new JBig2DocumentContext();
38 pPrivateData->SetPrivateObj(pModule, pJBig2DocumentContext);
39 return pJBig2DocumentContext;
40 }
41
42 CCodec_Jbig2Context::CCodec_Jbig2Context() {
43 FXSYS_memset(this, 0, sizeof(CCodec_Jbig2Context));
44 }
45
46 CCodec_Jbig2Module::~CCodec_Jbig2Module() {
47 }
48
49 void* CCodec_Jbig2Module::CreateJbig2Context() {
50 return new CCodec_Jbig2Context();
51 }
52 void CCodec_Jbig2Module::DestroyJbig2Context(void* pJbig2Content) {
53 if (pJbig2Content) {
54 CJBig2_Context::DestroyContext(
55 ((CCodec_Jbig2Context*)pJbig2Content)->m_pContext);
56 delete (CCodec_Jbig2Context*)pJbig2Content;
57 }
58 pJbig2Content = NULL;
59 }
60 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context,
61 CFX_PrivateData* pPrivateData,
62 FX_DWORD width,
63 FX_DWORD height,
64 CPDF_StreamAcc* src_stream,
65 CPDF_StreamAcc* global_stream,
66 uint8_t* dest_buf,
67 FX_DWORD dest_pitch,
68 IFX_Pause* pPause) {
69 if (!pJbig2Context) {
70 return FXCODEC_STATUS_ERR_PARAMS;
71 }
72 JBig2DocumentContext* pJBig2DocumentContext =
73 GetJBig2DocumentContext(this, pPrivateData);
74 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
75 m_pJbig2Context->m_width = width;
76 m_pJbig2Context->m_height = height;
77 m_pJbig2Context->m_pSrcStream = src_stream;
78 m_pJbig2Context->m_pGlobalStream = global_stream;
79 m_pJbig2Context->m_dest_buf = dest_buf;
80 m_pJbig2Context->m_dest_pitch = dest_pitch;
81 m_pJbig2Context->m_pPause = pPause;
82 FXSYS_memset(dest_buf, 0, height * dest_pitch);
83 m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(
84 global_stream, src_stream, pJBig2DocumentContext->GetSymbolDictCache(),
85 pPause);
86 if (!m_pJbig2Context->m_pContext) {
87 return FXCODEC_STATUS_ERROR;
88 }
89 int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height,
90 dest_pitch, pPause);
91 if (m_pJbig2Context->m_pContext->GetProcessingStatus() ==
92 FXCODEC_STATUS_DECODE_FINISH) {
93 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
94 m_pJbig2Context->m_pContext = NULL;
95 if (ret != JBIG2_SUCCESS) {
96 return FXCODEC_STATUS_ERROR;
97 }
98 int dword_size = height * dest_pitch / 4;
99 FX_DWORD* dword_buf = (FX_DWORD*)dest_buf;
100 for (int i = 0; i < dword_size; i++) {
101 dword_buf[i] = ~dword_buf[i];
102 }
103 return FXCODEC_STATUS_DECODE_FINISH;
104 }
105 return m_pJbig2Context->m_pContext->GetProcessingStatus();
106 }
107 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context,
108 IFX_Pause* pPause) {
109 CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
110 int ret = m_pJbig2Context->m_pContext->Continue(pPause);
111 if (m_pJbig2Context->m_pContext->GetProcessingStatus() !=
112 FXCODEC_STATUS_DECODE_FINISH) {
113 return m_pJbig2Context->m_pContext->GetProcessingStatus();
114 }
115 CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
116 m_pJbig2Context->m_pContext = NULL;
117 if (ret != JBIG2_SUCCESS) {
118 return FXCODEC_STATUS_ERROR;
119 }
120 int dword_size =
121 m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4;
122 FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf;
123 for (int i = 0; i < dword_size; i++) {
124 dword_buf[i] = ~dword_buf[i];
125 }
126 return FXCODEC_STATUS_DECODE_FINISH;
127 }
OLDNEW
« no previous file with comments | « core/src/fxcodec/codec/fx_codec_icc.cpp ('k') | core/src/fxcodec/codec/fx_codec_jpeg.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698