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-rw-r--r--core/include/fpdfapi/fpdf_resource.h22
-rw-r--r--core/src/fpdfapi/fpdf_font/fpdf_font.cpp118
-rw-r--r--core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp8
3 files changed, 72 insertions, 76 deletions
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h
index dee15cf941..233f07c57a 100644
--- a/core/include/fpdfapi/fpdf_resource.h
+++ b/core/include/fpdfapi/fpdf_resource.h
@@ -7,6 +7,8 @@
#ifndef CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
#define CORE_INCLUDE_FPDFAPI_FPDF_RESOURCE_H_
+#include <map>
+
#include "../fxcrt/fx_system.h"
#include "../fxge/fx_font.h"
#include "fpdf_parser.h"
@@ -360,28 +362,23 @@ class CPDF_TrueTypeFont : public CPDF_SimpleFont {
virtual FX_BOOL _Load();
virtual void LoadGlyphMap();
};
+
class CPDF_Type3Char {
public:
- CPDF_Type3Char();
-
+ // Takes ownership of |pForm|.
+ explicit CPDF_Type3Char(CPDF_Form* pForm);
~CPDF_Type3Char();
FX_BOOL LoadBitmap(CPDF_RenderContext* pContext);
- FX_BOOL m_bColored;
-
- FX_BOOL m_bPageRequired;
-
CPDF_Form* m_pForm;
-
- CFX_AffineMatrix m_ImageMatrix;
-
CFX_DIBitmap* m_pBitmap;
-
+ FX_BOOL m_bColored;
int m_Width;
-
+ CFX_AffineMatrix m_ImageMatrix;
FX_RECT m_BBox;
};
+
class CPDF_Type3Font : public CPDF_SimpleFont {
public:
CPDF_Type3Font();
@@ -410,8 +407,7 @@ class CPDF_Type3Font : public CPDF_SimpleFont {
CPDF_Dictionary* m_pCharProcs;
CPDF_Dictionary* m_pPageResources;
CPDF_Dictionary* m_pFontResources;
- CFX_MapPtrToPtr m_CacheMap;
- CFX_MapPtrToPtr m_DeletedMap;
+ std::map<FX_DWORD, CPDF_Type3Char*> m_CacheMap;
};
enum CIDSet {
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
index 0529d3d35b..07f9dda653 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
@@ -1643,27 +1643,20 @@ void CPDF_TrueTypeFont::LoadGlyphMap() {
m_GlyphIndex[charcode] = charcode;
}
}
-CPDF_Type3Font::CPDF_Type3Font() : CPDF_SimpleFont(PDFFONT_TYPE3) {
- m_pPageResources = NULL;
- FXSYS_memset(m_CharWidthL, 0, sizeof m_CharWidthL);
+
+CPDF_Type3Font::CPDF_Type3Font()
+ : CPDF_SimpleFont(PDFFONT_TYPE3),
+ m_pCharProcs(nullptr),
+ m_pPageResources(nullptr),
+ m_pFontResources(nullptr) {
+ FXSYS_memset(m_CharWidthL, 0, sizeof(m_CharWidthL));
}
+
CPDF_Type3Font::~CPDF_Type3Font() {
- FX_POSITION pos = m_CacheMap.GetStartPosition();
- while (pos) {
- void* key;
- void* value;
- m_CacheMap.GetNextAssoc(pos, key, value);
- delete (CPDF_Type3Char*)value;
- }
- m_CacheMap.RemoveAll();
- pos = m_DeletedMap.GetStartPosition();
- while (pos) {
- void* key;
- void* value;
- m_DeletedMap.GetNextAssoc(pos, key, value);
- delete (CPDF_Type3Char*)key;
- }
+ for (auto it : m_CacheMap)
+ delete it.second;
}
+
FX_BOOL CPDF_Type3Font::_Load() {
m_pFontResources = m_pFontDict->GetDict(FX_BSTRC("Resources"));
CPDF_Array* pMatrix = m_pFontDict->GetArray(FX_BSTRC("FontMatrix"));
@@ -1714,19 +1707,15 @@ FX_BOOL CPDF_Type3Font::_Load() {
void CPDF_Type3Font::CheckType3FontMetrics() {
CheckFontMetrics();
}
+
CPDF_Type3Char* CPDF_Type3Font::LoadChar(FX_DWORD charcode, int level) {
if (level >= _FPDF_MAX_TYPE3_FORM_LEVEL_)
return nullptr;
- CPDF_Type3Char* pChar = nullptr;
- if (m_CacheMap.Lookup((void*)(uintptr_t)charcode, (void*&)pChar)) {
- if (pChar->m_bPageRequired && m_pPageResources) {
- delete pChar;
- m_CacheMap.RemoveKey((void*)(uintptr_t)charcode);
- return LoadChar(charcode, level + 1);
- }
- return pChar;
- }
+ auto it = m_CacheMap.find(charcode);
+ if (it != m_CacheMap.end())
+ return it->second;
+
const FX_CHAR* name =
GetAdobeCharName(m_BaseEncoding, m_pCharNames, charcode);
if (!name)
@@ -1737,59 +1726,70 @@ CPDF_Type3Char* CPDF_Type3Font::LoadChar(FX_DWORD charcode, int level) {
if (!pStream)
return nullptr;
- pChar = new CPDF_Type3Char;
- pChar->m_pForm = new CPDF_Form(
+ nonstd::unique_ptr<CPDF_Type3Char> pNewChar(new CPDF_Type3Char(new CPDF_Form(
m_pDocument, m_pFontResources ? m_pFontResources : m_pPageResources,
- pStream, nullptr);
- pChar->m_pForm->ParseContent(nullptr, nullptr, pChar, nullptr, level + 1);
+ pStream, nullptr)));
+
+ // This can trigger recursion into this method. The content of |m_CacheMap|
+ // can change as a result. Thus after it returns, check the cache again for
+ // a cache hit.
+ pNewChar->m_pForm->ParseContent(nullptr, nullptr, pNewChar.get(), nullptr,
+ level + 1);
+ it = m_CacheMap.find(charcode);
+ if (it != m_CacheMap.end())
+ return it->second;
+
FX_FLOAT scale = m_FontMatrix.GetXUnit();
- pChar->m_Width = (int32_t)(pChar->m_Width * scale + 0.5f);
- FX_RECT& rcBBox = pChar->m_BBox;
+ pNewChar->m_Width = (int32_t)(pNewChar->m_Width * scale + 0.5f);
+ FX_RECT& rcBBox = pNewChar->m_BBox;
CFX_FloatRect char_rect(
(FX_FLOAT)rcBBox.left / 1000.0f, (FX_FLOAT)rcBBox.bottom / 1000.0f,
(FX_FLOAT)rcBBox.right / 1000.0f, (FX_FLOAT)rcBBox.top / 1000.0f);
- if (rcBBox.right <= rcBBox.left || rcBBox.bottom >= rcBBox.top) {
- char_rect = pChar->m_pForm->CalcBoundingBox();
- }
+ if (rcBBox.right <= rcBBox.left || rcBBox.bottom >= rcBBox.top)
+ char_rect = pNewChar->m_pForm->CalcBoundingBox();
+
char_rect.Transform(&m_FontMatrix);
rcBBox.left = FXSYS_round(char_rect.left * 1000);
rcBBox.right = FXSYS_round(char_rect.right * 1000);
rcBBox.top = FXSYS_round(char_rect.top * 1000);
rcBBox.bottom = FXSYS_round(char_rect.bottom * 1000);
- m_CacheMap.SetAt((void*)(uintptr_t)charcode, pChar);
- if (pChar->m_pForm->CountObjects() == 0) {
- delete pChar->m_pForm;
- pChar->m_pForm = nullptr;
+
+ FXSYS_assert(m_CacheMap.find(charcode) == m_CacheMap.end());
+ CPDF_Type3Char* pCachedChar = pNewChar.release();
+ m_CacheMap[charcode] = pCachedChar;
+ if (pCachedChar->m_pForm->CountObjects() == 0) {
+ delete pCachedChar->m_pForm;
+ pCachedChar->m_pForm = nullptr;
}
- return pChar;
+ return pCachedChar;
}
+
int CPDF_Type3Font::GetCharWidthF(FX_DWORD charcode, int level) {
- if (charcode > 0xff) {
+ if (charcode >= FX_ArraySize(m_CharWidthL))
charcode = 0;
- }
- if (m_CharWidthL[charcode]) {
+
+ if (m_CharWidthL[charcode])
return m_CharWidthL[charcode];
- }
- CPDF_Type3Char* pChar = LoadChar(charcode, level);
- if (pChar == NULL) {
- return 0;
- }
- return pChar->m_Width;
+
+ const CPDF_Type3Char* pChar = LoadChar(charcode, level);
+ return pChar ? pChar->m_Width : 0;
}
+
void CPDF_Type3Font::GetCharBBox(FX_DWORD charcode, FX_RECT& rect, int level) {
- CPDF_Type3Char* pChar = LoadChar(charcode, level);
- if (pChar == NULL) {
- rect.left = rect.right = rect.top = rect.bottom = 0;
+ const CPDF_Type3Char* pChar = LoadChar(charcode, level);
+ if (!pChar) {
+ rect.left = 0;
+ rect.right = 0;
+ rect.top = 0;
+ rect.bottom = 0;
return;
}
rect = pChar->m_BBox;
}
-CPDF_Type3Char::CPDF_Type3Char() {
- m_pForm = NULL;
- m_pBitmap = NULL;
- m_bPageRequired = FALSE;
- m_bColored = FALSE;
-}
+
+CPDF_Type3Char::CPDF_Type3Char(CPDF_Form* pForm)
+ : m_pForm(pForm), m_pBitmap(nullptr), m_bColored(FALSE) {}
+
CPDF_Type3Char::~CPDF_Type3Char() {
delete m_pForm;
delete m_pBitmap;
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
index 89ac8ac143..c8d86e072d 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
@@ -128,10 +128,10 @@ CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize,
const CFX_AffineMatrix* pMatrix,
FX_FLOAT retinaScaleX,
FX_FLOAT retinaScaleY) {
- CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode);
- if (pChar == NULL || pChar->m_pBitmap == NULL) {
- return NULL;
- }
+ const CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode);
+ if (!pChar || !pChar->m_pBitmap)
+ return nullptr;
+
CFX_DIBitmap* pBitmap = pChar->m_pBitmap;
CFX_AffineMatrix image_matrix, text_matrix;
image_matrix = pChar->m_ImageMatrix;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 15:15:08 +0000