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authorTom Sepez <tsepez@chromium.org>2018-04-30 21:02:03 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-04-30 21:02:03 +0000
commitda65a8ea74d2748c93015fb5521da678e29e6548 (patch)
treec9455640dd3e89a43ab4cf7e3bf17ed475033b5d /core
parentf213df4a87ede709db1f311bbad3c68fbccf159c (diff)
downloadpdfium-da65a8ea74d2748c93015fb5521da678e29e6548.tar.xz
Saner memory managment in cttfontdesc, part 1.
A subsequent patch will tackle the ad-hoc ref counting, but we can tidy this before going down that hole. Decouple CTTFontDesc creation from face setting. Remove union and treat single-entry case as vector's first element. Pass unique_ptr to prove memory ownership. Change-Id: Ic427798da04f3afbb65a56ee10045b9f22457a73 Reviewed-on: https://pdfium-review.googlesource.com/31730 Reviewed-by: dsinclair <dsinclair@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core')
-rw-r--r--core/fxge/cfx_fontmapper.cpp52
-rw-r--r--core/fxge/cfx_fontmgr.cpp47
-rw-r--r--core/fxge/cfx_fontmgr.h5
-rw-r--r--core/fxge/cttfontdesc.cpp43
-rw-r--r--core/fxge/cttfontdesc.h26
5 files changed, 78 insertions, 95 deletions
diff --git a/core/fxge/cfx_fontmapper.cpp b/core/fxge/cfx_fontmapper.cpp
index b3e88c00fe..c0b111a51e 100644
--- a/core/fxge/cfx_fontmapper.cpp
+++ b/core/fxge/cfx_fontmapper.cpp
@@ -751,22 +751,25 @@ FXFT_Face CFX_FontMapper::GetCachedTTCFace(void* hFont,
const uint32_t tableTTCF,
uint32_t ttc_size,
uint32_t font_size) {
- uint8_t buffer[1024];
- m_pFontInfo->GetFontData(hFont, tableTTCF, buffer, FX_ArraySize(buffer));
- uint32_t* pBuffer = reinterpret_cast<uint32_t*>(buffer);
uint32_t checksum = 0;
- for (int i = 0; i < 256; i++)
- checksum += pBuffer[i];
- uint8_t* pFontData;
- FXFT_Face face = m_pFontMgr->GetCachedTTCFace(
- ttc_size, checksum, ttc_size - font_size, &pFontData);
- if (!face) {
- pFontData = FX_Alloc(uint8_t, ttc_size);
- m_pFontInfo->GetFontData(hFont, tableTTCF, pFontData, ttc_size);
- face = m_pFontMgr->AddCachedTTCFace(ttc_size, checksum, pFontData, ttc_size,
- ttc_size - font_size);
+ {
+ uint8_t buffer[1024];
+ m_pFontInfo->GetFontData(hFont, tableTTCF, buffer, sizeof(buffer));
+ uint32_t* pBuffer = reinterpret_cast<uint32_t*>(buffer);
+ for (int i = 0; i < 256; i++)
+ checksum += pBuffer[i];
}
- return face;
+ uint8_t* pIgnore = nullptr;
+ FXFT_Face face = m_pFontMgr->GetCachedTTCFace(ttc_size, checksum,
+ ttc_size - font_size, &pIgnore);
+ if (face)
+ return face;
+
+ std::unique_ptr<uint8_t, FxFreeDeleter> pFontData(
+ FX_Alloc(uint8_t, ttc_size));
+ m_pFontInfo->GetFontData(hFont, tableTTCF, pFontData.get(), ttc_size);
+ return m_pFontMgr->AddCachedTTCFace(ttc_size, checksum, std::move(pFontData),
+ ttc_size, ttc_size - font_size);
}
FXFT_Face CFX_FontMapper::GetCachedFace(void* hFont,
@@ -774,17 +777,18 @@ FXFT_Face CFX_FontMapper::GetCachedFace(void* hFont,
int weight,
bool bItalic,
uint32_t font_size) {
- uint8_t* pFontData;
+ uint8_t* pIgnore = nullptr;
FXFT_Face face =
- m_pFontMgr->GetCachedFace(SubstName, weight, bItalic, &pFontData);
- if (!face) {
- pFontData = FX_Alloc(uint8_t, font_size);
- m_pFontInfo->GetFontData(hFont, 0, pFontData, font_size);
- face =
- m_pFontMgr->AddCachedFace(SubstName, weight, bItalic, pFontData,
- font_size, m_pFontInfo->GetFaceIndex(hFont));
- }
- return face;
+ m_pFontMgr->GetCachedFace(SubstName, weight, bItalic, &pIgnore);
+ if (face)
+ return face;
+
+ std::unique_ptr<uint8_t, FxFreeDeleter> pFontData(
+ FX_Alloc(uint8_t, font_size));
+ m_pFontInfo->GetFontData(hFont, 0, pFontData.get(), font_size);
+ return m_pFontMgr->AddCachedFace(SubstName, weight, bItalic,
+ std::move(pFontData), font_size,
+ m_pFontInfo->GetFaceIndex(hFont));
}
int PDF_GetStandardFontName(ByteString* name) {
diff --git a/core/fxge/cfx_fontmgr.cpp b/core/fxge/cfx_fontmgr.cpp
index 158b5d0cdb..2ee46373d5 100644
--- a/core/fxge/cfx_fontmgr.cpp
+++ b/core/fxge/cfx_fontmgr.cpp
@@ -126,19 +126,21 @@ FXFT_Face CFX_FontMgr::GetCachedFace(const ByteString& face_name,
CTTFontDesc* pFontDesc = it->second.get();
*pFontData = pFontDesc->FontData();
pFontDesc->AddRef();
- return pFontDesc->SingleFace();
+ return pFontDesc->GetFace(0);
}
-FXFT_Face CFX_FontMgr::AddCachedFace(const ByteString& face_name,
- int weight,
- bool bItalic,
- uint8_t* pData,
- uint32_t size,
- int face_index) {
+FXFT_Face CFX_FontMgr::AddCachedFace(
+ const ByteString& face_name,
+ int weight,
+ bool bItalic,
+ std::unique_ptr<uint8_t, FxFreeDeleter> pData,
+ uint32_t size,
+ int face_index) {
InitFTLibrary();
FXFT_Face face = nullptr;
- int ret = FXFT_New_Memory_Face(m_FTLibrary, pData, size, face_index, &face);
+ int ret =
+ FXFT_New_Memory_Face(m_FTLibrary, pData.get(), size, face_index, &face);
if (ret)
return nullptr;
@@ -146,10 +148,11 @@ FXFT_Face CFX_FontMgr::AddCachedFace(const ByteString& face_name,
if (ret)
return nullptr;
- auto pFontDesc = pdfium::MakeUnique<CTTFontDesc>(pData, face);
+ auto pFontDesc = pdfium::MakeUnique<CTTFontDesc>(std::move(pData));
+ pFontDesc->SetFace(0, face);
CTTFontDesc* pResult = pFontDesc.get();
m_FaceMap[KeyNameFromFace(face_name, weight, bItalic)] = std::move(pFontDesc);
- return pResult->SingleFace();
+ return pResult->GetFace(0);
}
FXFT_Face CFX_FontMgr::GetCachedTTCFace(int ttc_size,
@@ -163,22 +166,24 @@ FXFT_Face CFX_FontMgr::GetCachedTTCFace(int ttc_size,
CTTFontDesc* pFontDesc = it->second.get();
*pFontData = pFontDesc->FontData();
int face_index = GetTTCIndex(pFontDesc->FontData(), ttc_size, font_offset);
- if (!pFontDesc->TTCFace(face_index)) {
- pFontDesc->SetTTCFace(
+ if (!pFontDesc->GetFace(face_index)) {
+ pFontDesc->SetFace(
face_index, GetFixedFace(pFontDesc->FontData(), ttc_size, face_index));
}
pFontDesc->AddRef();
- return pFontDesc->TTCFace(face_index);
+ return pFontDesc->GetFace(face_index);
}
-FXFT_Face CFX_FontMgr::AddCachedTTCFace(int ttc_size,
- uint32_t checksum,
- uint8_t* pData,
- uint32_t size,
- int font_offset) {
- int face_index = GetTTCIndex(pData, ttc_size, font_offset);
- FXFT_Face face = GetFixedFace(pData, ttc_size, face_index);
- auto pFontDesc = pdfium::MakeUnique<CTTFontDesc>(pData, face_index, face);
+FXFT_Face CFX_FontMgr::AddCachedTTCFace(
+ int ttc_size,
+ uint32_t checksum,
+ std::unique_ptr<uint8_t, FxFreeDeleter> pData,
+ uint32_t size,
+ int font_offset) {
+ int face_index = GetTTCIndex(pData.get(), ttc_size, font_offset);
+ FXFT_Face face = GetFixedFace(pData.get(), ttc_size, face_index);
+ auto pFontDesc = pdfium::MakeUnique<CTTFontDesc>(std::move(pData));
+ pFontDesc->SetFace(face_index, face);
m_FaceMap[KeyNameFromSize(ttc_size, checksum)] = std::move(pFontDesc);
return face;
}
diff --git a/core/fxge/cfx_fontmgr.h b/core/fxge/cfx_fontmgr.h
index 6ca0970bdc..24c5ad3b6f 100644
--- a/core/fxge/cfx_fontmgr.h
+++ b/core/fxge/cfx_fontmgr.h
@@ -10,6 +10,7 @@
#include <map>
#include <memory>
+#include "core/fxcrt/fx_memory.h"
#include "core/fxge/fx_font.h"
class CFX_FontMapper;
@@ -31,7 +32,7 @@ class CFX_FontMgr {
FXFT_Face AddCachedFace(const ByteString& face_name,
int weight,
bool bItalic,
- uint8_t* pData,
+ std::unique_ptr<uint8_t, FxFreeDeleter> pData,
uint32_t size,
int face_index);
FXFT_Face GetCachedTTCFace(int ttc_size,
@@ -40,7 +41,7 @@ class CFX_FontMgr {
uint8_t** pFontData);
FXFT_Face AddCachedTTCFace(int ttc_size,
uint32_t checksum,
- uint8_t* pData,
+ std::unique_ptr<uint8_t, FxFreeDeleter> pData,
uint32_t size,
int font_offset);
FXFT_Face GetFileFace(const char* filename, int face_index);
diff --git a/core/fxge/cttfontdesc.cpp b/core/fxge/cttfontdesc.cpp
index 97a12732e7..3d0b27b159 100644
--- a/core/fxge/cttfontdesc.cpp
+++ b/core/fxge/cttfontdesc.cpp
@@ -6,35 +6,26 @@
#include "core/fxge/cttfontdesc.h"
+#include <utility>
+
#include "core/fxge/fx_freetype.h"
#include "third_party/base/stl_util.h"
-CTTFontDesc::CTTFontDesc(uint8_t* pData, FXFT_Face face)
- : m_bIsTTC(false), m_pFontData(pData), m_SingleFace(face) {}
-
-CTTFontDesc::CTTFontDesc(uint8_t* pData, size_t index, FXFT_Face face)
- : m_bIsTTC(true), m_pFontData(pData) {
+CTTFontDesc::CTTFontDesc(std::unique_ptr<uint8_t, FxFreeDeleter> pData)
+ : m_pFontData(std::move(pData)) {
for (size_t i = 0; i < FX_ArraySize(m_TTCFaces); i++)
m_TTCFaces[i] = nullptr;
- SetTTCFace(index, face);
}
CTTFontDesc::~CTTFontDesc() {
ASSERT(m_RefCount == 0);
- if (m_bIsTTC) {
- for (size_t i = 0; i < FX_ArraySize(m_TTCFaces); i++) {
- if (m_TTCFaces[i])
- FXFT_Done_Face(m_TTCFaces[i]);
- }
- } else {
- if (m_SingleFace)
- FXFT_Done_Face(m_SingleFace);
+ for (size_t i = 0; i < FX_ArraySize(m_TTCFaces); i++) {
+ if (m_TTCFaces[i])
+ FXFT_Done_Face(m_TTCFaces[i]);
}
- FX_Free(m_pFontData);
}
-void CTTFontDesc::SetTTCFace(size_t index, FXFT_Face face) {
- ASSERT(m_bIsTTC);
+void CTTFontDesc::SetFace(size_t index, FXFT_Face face) {
ASSERT(index < FX_ArraySize(m_TTCFaces));
m_TTCFaces[index] = face;
}
@@ -45,24 +36,14 @@ void CTTFontDesc::AddRef() {
}
CTTFontDesc::ReleaseStatus CTTFontDesc::ReleaseFace(FXFT_Face face) {
- if (m_bIsTTC) {
- if (!pdfium::ContainsValue(m_TTCFaces, face))
- return kNotAppropriate;
- } else {
- if (m_SingleFace != face)
- return kNotAppropriate;
- }
+ if (!pdfium::ContainsValue(m_TTCFaces, face))
+ return kNotAppropriate;
+
ASSERT(m_RefCount > 0);
return --m_RefCount == 0 ? kReleased : kNotReleased;
}
-FXFT_Face CTTFontDesc::SingleFace() const {
- ASSERT(!m_bIsTTC);
- return m_SingleFace;
-}
-
-FXFT_Face CTTFontDesc::TTCFace(size_t index) const {
- ASSERT(m_bIsTTC);
+FXFT_Face CTTFontDesc::GetFace(size_t index) const {
ASSERT(index < FX_ArraySize(m_TTCFaces));
return m_TTCFaces[index];
}
diff --git a/core/fxge/cttfontdesc.h b/core/fxge/cttfontdesc.h
index bc0ea1737f..e73b03f6ec 100644
--- a/core/fxge/cttfontdesc.h
+++ b/core/fxge/cttfontdesc.h
@@ -7,6 +7,9 @@
#ifndef CORE_FXGE_CTTFONTDESC_H_
#define CORE_FXGE_CTTFONTDESC_H_
+#include <memory>
+
+#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxge/fx_font.h"
@@ -18,34 +21,23 @@ class CTTFontDesc {
kNotReleased // Object still alive.
};
- // Single face ctor.
- CTTFontDesc(uint8_t* pData, FXFT_Face face);
-
- // TTC face ctor.
- CTTFontDesc(uint8_t* pData, size_t index, FXFT_Face face);
-
+ explicit CTTFontDesc(std::unique_ptr<uint8_t, FxFreeDeleter> pData);
~CTTFontDesc();
- void SetTTCFace(size_t index, FXFT_Face face);
+ void SetFace(size_t index, FXFT_Face face);
void AddRef();
// May not decrement refcount, depending on the value of |face|.
ReleaseStatus ReleaseFace(FXFT_Face face);
- uint8_t* FontData() const { return m_pFontData; }
-
- FXFT_Face SingleFace() const;
- FXFT_Face TTCFace(size_t index) const;
+ uint8_t* FontData() const { return m_pFontData.get(); }
+ FXFT_Face GetFace(size_t index) const;
private:
- const bool m_bIsTTC;
int m_RefCount = 1;
- uint8_t* const m_pFontData;
- union {
- const FXFT_Face m_SingleFace;
- FXFT_Face m_TTCFaces[16];
- };
+ std::unique_ptr<uint8_t, FxFreeDeleter> const m_pFontData;
+ FXFT_Face m_TTCFaces[16];
};
#endif // CORE_FXGE_CTTFONTDESC_H_