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-rw-r--r--core/fxcodec/codec/ccodec_jbig2module.h20
-rw-r--r--core/fxcodec/codec/fx_codec_jbig.cpp32
-rw-r--r--core/fxcodec/include/JBig2_DocumentContext.h34
-rw-r--r--core/fxcodec/jbig2/JBig2_Context.cpp6
-rw-r--r--core/fxcodec/jbig2/JBig2_Context.h4
5 files changed, 60 insertions, 36 deletions
diff --git a/core/fxcodec/codec/ccodec_jbig2module.h b/core/fxcodec/codec/ccodec_jbig2module.h
index 5d77d53619..765a11fcb4 100644
--- a/core/fxcodec/codec/ccodec_jbig2module.h
+++ b/core/fxcodec/codec/ccodec_jbig2module.h
@@ -16,6 +16,7 @@ class CJBig2_Context;
class CJBig2_Image;
class CPDF_StreamAcc;
class IFX_Pause;
+class JBig2_DocumentContext;
class CCodec_Jbig2Context {
public:
@@ -37,15 +38,16 @@ class CCodec_Jbig2Module {
CCodec_Jbig2Module() {}
~CCodec_Jbig2Module();
- FXCODEC_STATUS StartDecode(CCodec_Jbig2Context* pJbig2Context,
- std::unique_ptr<CFX_Deletable>* pContextHolder,
- uint32_t width,
- uint32_t height,
- CPDF_StreamAcc* src_stream,
- CPDF_StreamAcc* global_stream,
- uint8_t* dest_buf,
- uint32_t dest_pitch,
- IFX_Pause* pPause);
+ FXCODEC_STATUS StartDecode(
+ CCodec_Jbig2Context* pJbig2Context,
+ std::unique_ptr<JBig2_DocumentContext>* pContextHolder,
+ uint32_t width,
+ uint32_t height,
+ CPDF_StreamAcc* src_stream,
+ CPDF_StreamAcc* global_stream,
+ uint8_t* dest_buf,
+ uint32_t dest_pitch,
+ IFX_Pause* pPause);
FXCODEC_STATUS ContinueDecode(CCodec_Jbig2Context* pJbig2Context,
IFX_Pause* pPause);
};
diff --git a/core/fxcodec/codec/fx_codec_jbig.cpp b/core/fxcodec/codec/fx_codec_jbig.cpp
index 8f2d07f490..adc57fd1ad 100644
--- a/core/fxcodec/codec/fx_codec_jbig.cpp
+++ b/core/fxcodec/codec/fx_codec_jbig.cpp
@@ -9,32 +9,20 @@
#include <list>
#include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h"
+#include "core/fxcodec/include/JBig2_DocumentContext.h"
#include "core/fxcodec/jbig2/JBig2_Context.h"
#include "core/fxcodec/jbig2/JBig2_Image.h"
#include "core/fxcrt/include/fx_memory.h"
-// Holds per-document JBig2 related data.
-class JBig2DocumentContext : public CFX_Deletable {
- public:
- std::list<CJBig2_CachePair>* GetSymbolDictCache() {
- return &m_SymbolDictCache;
- }
-
- ~JBig2DocumentContext() override {
- for (auto it : m_SymbolDictCache) {
- delete it.second;
- }
- }
+JBig2_DocumentContext::JBig2_DocumentContext() {}
- private:
- std::list<CJBig2_CachePair> m_SymbolDictCache;
-};
+JBig2_DocumentContext::~JBig2_DocumentContext() {}
-JBig2DocumentContext* GetJBig2DocumentContext(
- std::unique_ptr<CFX_Deletable>* pContextHolder) {
- if (!pContextHolder->get())
- pContextHolder->reset(new JBig2DocumentContext());
- return static_cast<JBig2DocumentContext*>(pContextHolder->get());
+JBig2_DocumentContext* GetJBig2DocumentContext(
+ std::unique_ptr<JBig2_DocumentContext>* pContextHolder) {
+ if (!pContextHolder)
+ pContextHolder->reset(new JBig2_DocumentContext());
+ return pContextHolder->get();
}
CCodec_Jbig2Context::CCodec_Jbig2Context()
@@ -52,7 +40,7 @@ CCodec_Jbig2Module::~CCodec_Jbig2Module() {}
FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(
CCodec_Jbig2Context* pJbig2Context,
- std::unique_ptr<CFX_Deletable>* pContextHolder,
+ std::unique_ptr<JBig2_DocumentContext>* pContextHolder,
uint32_t width,
uint32_t height,
CPDF_StreamAcc* src_stream,
@@ -63,7 +51,7 @@ FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(
if (!pJbig2Context)
return FXCODEC_STATUS_ERR_PARAMS;
- JBig2DocumentContext* pJBig2DocumentContext =
+ JBig2_DocumentContext* pJBig2DocumentContext =
GetJBig2DocumentContext(pContextHolder);
pJbig2Context->m_width = width;
pJbig2Context->m_height = height;
diff --git a/core/fxcodec/include/JBig2_DocumentContext.h b/core/fxcodec/include/JBig2_DocumentContext.h
new file mode 100644
index 0000000000..d49bdfab8e
--- /dev/null
+++ b/core/fxcodec/include/JBig2_DocumentContext.h
@@ -0,0 +1,34 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FXCODEC_INCLUDE_JBIG2_DOCUMENTCONTEXT_H_
+#define CORE_FXCODEC_INCLUDE_JBIG2_DOCUMENTCONTEXT_H_
+
+#include <list>
+#include <memory>
+#include <utility>
+
+class CJBig2_SymbolDict;
+
+using CJBig2_CacheKey = std::pair<uint32_t, uint32_t>;
+using CJBig2_CachePair =
+ std::pair<CJBig2_CacheKey, std::unique_ptr<CJBig2_SymbolDict>>;
+
+// Holds per-document JBig2 related data.
+class JBig2_DocumentContext {
+ public:
+ JBig2_DocumentContext();
+ ~JBig2_DocumentContext();
+
+ std::list<CJBig2_CachePair>* GetSymbolDictCache() {
+ return &m_SymbolDictCache;
+ }
+
+ private:
+ std::list<CJBig2_CachePair> m_SymbolDictCache;
+};
+
+#endif // CORE_FXCODEC_INCLUDE_JBIG2_DOCUMENTCONTEXT_H_
diff --git a/core/fxcodec/jbig2/JBig2_Context.cpp b/core/fxcodec/jbig2/JBig2_Context.cpp
index 1e4c35a625..256ce3910a 100644
--- a/core/fxcodec/jbig2/JBig2_Context.cpp
+++ b/core/fxcodec/jbig2/JBig2_Context.cpp
@@ -591,7 +591,8 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
if (it->first == key) {
std::unique_ptr<CJBig2_SymbolDict> copy(it->second->DeepCopy());
pSegment->m_Result.sd = copy.release();
- m_pSymbolDictCache->push_front(*it);
+ m_pSymbolDictCache->push_front(
+ CJBig2_CachePair(key, std::move(it->second)));
m_pSymbolDictCache->erase(it);
cache_hit = true;
break;
@@ -621,11 +622,10 @@ int32_t CJBig2_Context::parseSymbolDict(CJBig2_Segment* pSegment,
pSegment->m_Result.sd->DeepCopy();
int size = pdfium::CollectionSize<int>(*m_pSymbolDictCache);
while (size >= kSymbolDictCacheMaxSize) {
- delete m_pSymbolDictCache->back().second;
m_pSymbolDictCache->pop_back();
--size;
}
- m_pSymbolDictCache->push_front(CJBig2_CachePair(key, value.release()));
+ m_pSymbolDictCache->push_front(CJBig2_CachePair(key, std::move(value)));
}
}
if (wFlags & 0x0200) {
diff --git a/core/fxcodec/jbig2/JBig2_Context.h b/core/fxcodec/jbig2/JBig2_Context.h
index 1577b22d37..a0e1a8fcac 100644
--- a/core/fxcodec/jbig2/JBig2_Context.h
+++ b/core/fxcodec/jbig2/JBig2_Context.h
@@ -25,8 +25,8 @@ class IFX_Pause;
// Cache is keyed by the ObjNum of a stream and an index within the stream.
using CJBig2_CacheKey = std::pair<uint32_t, uint32_t>;
-// NB: CJBig2_SymbolDict* is owned.
-using CJBig2_CachePair = std::pair<CJBig2_CacheKey, CJBig2_SymbolDict*>;
+using CJBig2_CachePair =
+ std::pair<CJBig2_CacheKey, std::unique_ptr<CJBig2_SymbolDict>>;
#define JBIG2_SUCCESS 0
#define JBIG2_FAILED -1
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 08:10:07 +0000