Encapsulate CPDF_StreamAcc::LoadAllData().
Make it a private method, and add public methods so only limited
combinations of LoadAllData() arguments are possible.
Change-Id: I8c2220eb0e95012350858876586f7c470c40a7c3
Reviewed-on: https://pdfium-review.googlesource.com/42590
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/core/fpdfapi/page/cpdf_docpagedata.cpp b/core/fpdfapi/page/cpdf_docpagedata.cpp
index 6744e0f..9ee8d58 100644
--- a/core/fpdfapi/page/cpdf_docpagedata.cpp
+++ b/core/fpdfapi/page/cpdf_docpagedata.cpp
@@ -470,7 +470,7 @@
org_size = std::max(org_size, 0);
auto pFontAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pFontStream);
- pFontAcc->LoadAllData(false, org_size, false);
+ pFontAcc->LoadAllDataFilteredWithEstimatedSize(org_size);
m_FontFileMap[pFontStream] = pFontAcc;
return pFontAcc;
}
diff --git a/core/fpdfapi/parser/cpdf_stream_acc.cpp b/core/fpdfapi/parser/cpdf_stream_acc.cpp
index 1083e31..78bcb57 100644
--- a/core/fpdfapi/parser/cpdf_stream_acc.cpp
+++ b/core/fpdfapi/parser/cpdf_stream_acc.cpp
@@ -20,6 +20,11 @@
void CPDF_StreamAcc::LoadAllData(bool bRawAccess,
uint32_t estimated_size,
bool bImageAcc) {
+ if (bRawAccess) {
+ ASSERT(!estimated_size);
+ ASSERT(!bImageAcc);
+ }
+
if (!m_pStream)
return;
@@ -63,6 +68,15 @@
LoadAllData(false, 0, false);
}
+void CPDF_StreamAcc::LoadAllDataFilteredWithEstimatedSize(
+ uint32_t estimated_size) {
+ LoadAllData(false, estimated_size, false);
+}
+
+void CPDF_StreamAcc::LoadAllDataImageAcc(uint32_t estimated_size) {
+ LoadAllData(false, estimated_size, true);
+}
+
void CPDF_StreamAcc::LoadAllDataRaw() {
LoadAllData(true, 0, false);
}
diff --git a/core/fpdfapi/parser/cpdf_stream_acc.h b/core/fpdfapi/parser/cpdf_stream_acc.h
index fae8ba0..3c42639 100644
--- a/core/fpdfapi/parser/cpdf_stream_acc.h
+++ b/core/fpdfapi/parser/cpdf_stream_acc.h
@@ -24,8 +24,9 @@
CPDF_StreamAcc(const CPDF_StreamAcc&) = delete;
CPDF_StreamAcc& operator=(const CPDF_StreamAcc&) = delete;
- void LoadAllData(bool bRawAccess, uint32_t estimated_size, bool bImageAcc);
void LoadAllDataFiltered();
+ void LoadAllDataFilteredWithEstimatedSize(uint32_t estimated_size);
+ void LoadAllDataImageAcc(uint32_t estimated_size);
void LoadAllDataRaw();
const CPDF_Stream* GetStream() const { return m_pStream.Get(); }
@@ -44,6 +45,8 @@
explicit CPDF_StreamAcc(const CPDF_Stream* pStream);
~CPDF_StreamAcc() override;
+ void LoadAllData(bool bRawAccess, uint32_t estimated_size, bool bImageAcc);
+
private:
uint8_t* m_pData = nullptr;
uint32_t m_dwSize = 0;
diff --git a/core/fpdfapi/render/cpdf_dibbase.cpp b/core/fpdfapi/render/cpdf_dibbase.cpp
index a37a0ae..d342a99 100644
--- a/core/fpdfapi/render/cpdf_dibbase.cpp
+++ b/core/fpdfapi/render/cpdf_dibbase.cpp
@@ -143,7 +143,7 @@
return false;
m_pStreamAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
- m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true);
+ m_pStreamAcc->LoadAllDataImageAcc(src_size.ValueOrDie());
if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData())
return false;
@@ -256,7 +256,7 @@
return LoadState::kFail;
m_pStreamAcc = pdfium::MakeRetain<CPDF_StreamAcc>(pStream);
- m_pStreamAcc->LoadAllData(false, src_size.ValueOrDie(), true);
+ m_pStreamAcc->LoadAllDataImageAcc(src_size.ValueOrDie());
if (m_pStreamAcc->GetSize() == 0 || !m_pStreamAcc->GetData())
return LoadState::kFail;