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Unified Diff: core/fxge/ge/cfx_fontmgr.cpp

Issue 2185533006: Splitting fx_ge_fontmap.cpp (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 4 years, 5 months ago
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« core/fxge/ge/cfx_folderfontinfo.cpp ('K') | « core/fxge/ge/cfx_fontmapper.cpp ('k') | core/fxge/ge/fx_ge_fontmap.cpp » ('j') | no next file with comments »
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Index: core/fxge/ge/cfx_fontmgr.cpp
diff --git a/core/fxge/ge/cfx_fontmgr.cpp b/core/fxge/ge/cfx_fontmgr.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f9621d1bb90e2c4af265f25bd2579f647b7aa155
--- /dev/null
+++ b/core/fxge/ge/cfx_fontmgr.cpp
@@ -0,0 +1,264 @@
+// 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
+
+#include <algorithm>
+#include <limits>
+#include <utility>
+#include <vector>
+
+#include "core/fxge/include/fx_font.h"
+
+#include "core/fxge/fontdata/chromefontdata/chromefontdata.h"
+#include "core/fxge/include/fx_freetype.h"
+#include "core/fxge/include/fx_ge.h"
+#include "third_party/base/stl_util.h"
+
+namespace {
+
+struct BuiltinFont {
+ const uint8_t* m_pFontData;
+ uint32_t m_dwSize;
+};
+
+const BuiltinFont g_FoxitFonts[14] = {
+ {g_FoxitFixedFontData, 17597},
+ {g_FoxitFixedBoldFontData, 18055},
+ {g_FoxitFixedBoldItalicFontData, 19151},
+ {g_FoxitFixedItalicFontData, 18746},
+ {g_FoxitSansFontData, 15025},
+ {g_FoxitSansBoldFontData, 16344},
+ {g_FoxitSansBoldItalicFontData, 16418},
+ {g_FoxitSansItalicFontData, 16339},
+ {g_FoxitSerifFontData, 19469},
+ {g_FoxitSerifBoldFontData, 19395},
+ {g_FoxitSerifBoldItalicFontData, 20733},
+ {g_FoxitSerifItalicFontData, 21227},
+ {g_FoxitSymbolFontData, 16729},
+ {g_FoxitDingbatsFontData, 29513},
+};
+
+const BuiltinFont g_MMFonts[2] = {
+ {g_FoxitSerifMMFontData, 113417},
+ {g_FoxitSansMMFontData, 66919},
+};
+
+CFX_ByteString KeyNameFromFace(const CFX_ByteString& face_name,
+ int weight,
+ FX_BOOL bItalic) {
+ CFX_ByteString key(face_name);
+ key += ',';
+ key += CFX_ByteString::FormatInteger(weight);
+ key += bItalic ? 'I' : 'N';
+ return key;
+}
+
+CFX_ByteString KeyNameFromSize(int ttc_size, uint32_t checksum) {
+ CFX_ByteString key;
+ key.Format("%d:%d", ttc_size, checksum);
+ return key;
+}
+
+int GetTTCIndex(const uint8_t* pFontData,
+ uint32_t ttc_size,
+ uint32_t font_offset) {
+ int face_index = 0;
+ const uint8_t* p = pFontData + 8;
+ uint32_t nfont = GET_TT_LONG(p);
+ uint32_t index;
+ for (index = 0; index < nfont; index++) {
+ p = pFontData + 12 + index * 4;
+ if (GET_TT_LONG(p) == font_offset) {
+ break;
+ }
dsinclair 2016/07/27 14:17:39 nit: {}'s
npm_g 2016/07/27 17:02:19 Done.
+ }
+ if (index >= nfont) {
+ face_index = 0;
+ } else {
+ face_index = index;
+ }
dsinclair 2016/07/27 14:17:40 nit: {}'s
npm_g 2016/07/27 17:02:20 Done.
+ return face_index;
+}
+
+} // namespace
+
+CFX_FontMgr::CFX_FontMgr()
+ : m_FTLibrary(nullptr), m_FTLibrarySupportsHinting(false) {
+ m_pBuiltinMapper.reset(new CFX_FontMapper(this));
+}
+
+CFX_FontMgr::~CFX_FontMgr() {
+ for (const auto& pair : m_FaceMap)
+ delete pair.second;
+
+ // |m_pBuiltinMapper| references |m_FTLibrary|, so it has to be destroyed
+ // first.
+ m_pBuiltinMapper.reset();
+ FXFT_Done_FreeType(m_FTLibrary);
+}
+
+void CFX_FontMgr::InitFTLibrary() {
+ if (m_FTLibrary)
+ return;
+ FXFT_Init_FreeType(&m_FTLibrary);
+ m_FTLibrarySupportsHinting =
+ FXFT_Library_SetLcdFilter(m_FTLibrary, FT_LCD_FILTER_DEFAULT) !=
+ FT_Err_Unimplemented_Feature;
+}
+
+void CFX_FontMgr::SetSystemFontInfo(
+ std::unique_ptr<IFX_SystemFontInfo> pFontInfo) {
+ m_pBuiltinMapper->SetSystemFontInfo(std::move(pFontInfo));
+}
+
+FXFT_Face CFX_FontMgr::FindSubstFont(const CFX_ByteString& face_name,
+ FX_BOOL bTrueType,
+ uint32_t flags,
+ int weight,
+ int italic_angle,
+ int CharsetCP,
+ CFX_SubstFont* pSubstFont) {
+ InitFTLibrary();
+ return m_pBuiltinMapper->FindSubstFont(face_name, bTrueType, flags, weight,
+ italic_angle, CharsetCP, pSubstFont);
+}
+
+FXFT_Face CFX_FontMgr::GetCachedFace(const CFX_ByteString& face_name,
+ int weight,
+ FX_BOOL bItalic,
+ uint8_t*& pFontData) {
+ auto it = m_FaceMap.find(KeyNameFromFace(face_name, weight, bItalic));
+ if (it == m_FaceMap.end())
+ return nullptr;
+
+ CTTFontDesc* pFontDesc = it->second;
+ pFontData = pFontDesc->m_pFontData;
+ pFontDesc->m_RefCount++;
+ return pFontDesc->m_SingleFace.m_pFace;
+}
+FXFT_Face CFX_FontMgr::AddCachedFace(const CFX_ByteString& face_name,
dsinclair 2016/07/27 14:17:39 nit: blank before
npm_g 2016/07/27 17:02:20 Done.
+ int weight,
+ FX_BOOL bItalic,
+ uint8_t* pData,
+ uint32_t size,
+ int face_index) {
+ CTTFontDesc* pFontDesc = new CTTFontDesc;
+ pFontDesc->m_Type = 1;
+ pFontDesc->m_SingleFace.m_pFace = nullptr;
+ pFontDesc->m_SingleFace.m_bBold = weight;
+ pFontDesc->m_SingleFace.m_bItalic = bItalic;
+ pFontDesc->m_pFontData = pData;
+ pFontDesc->m_RefCount = 1;
+
+ InitFTLibrary();
+ FXFT_Library library = m_FTLibrary;
+ int ret = FXFT_New_Memory_Face(library, pData, size, face_index,
+ &pFontDesc->m_SingleFace.m_pFace);
+ if (ret) {
+ delete pFontDesc;
+ return nullptr;
+ }
+ ret = FXFT_Set_Pixel_Sizes(pFontDesc->m_SingleFace.m_pFace, 64, 64);
+ if (ret) {
+ delete pFontDesc;
+ return nullptr;
+ }
+ m_FaceMap[KeyNameFromFace(face_name, weight, bItalic)] = pFontDesc;
+ return pFontDesc->m_SingleFace.m_pFace;
+}
+
+FXFT_Face CFX_FontMgr::GetCachedTTCFace(int ttc_size,
+ uint32_t checksum,
+ int font_offset,
+ uint8_t*& pFontData) {
+ auto it = m_FaceMap.find(KeyNameFromSize(ttc_size, checksum));
+ if (it == m_FaceMap.end())
+ return nullptr;
+
+ CTTFontDesc* pFontDesc = it->second;
+ pFontData = pFontDesc->m_pFontData;
+ pFontDesc->m_RefCount++;
+ int face_index = GetTTCIndex(pFontDesc->m_pFontData, ttc_size, font_offset);
+ if (!pFontDesc->m_TTCFace.m_pFaces[face_index]) {
+ pFontDesc->m_TTCFace.m_pFaces[face_index] =
+ GetFixedFace(pFontDesc->m_pFontData, ttc_size, face_index);
+ }
+ return pFontDesc->m_TTCFace.m_pFaces[face_index];
+}
+FXFT_Face CFX_FontMgr::AddCachedTTCFace(int ttc_size,
dsinclair 2016/07/27 14:17:39 ditto
npm_g 2016/07/27 17:02:20 Done.
+ uint32_t checksum,
+ uint8_t* pData,
+ uint32_t size,
+ int font_offset) {
+ CTTFontDesc* pFontDesc = new CTTFontDesc;
+ pFontDesc->m_Type = 2;
+ pFontDesc->m_pFontData = pData;
+ for (int i = 0; i < 16; i++) {
+ pFontDesc->m_TTCFace.m_pFaces[i] = nullptr;
dsinclair 2016/07/27 14:17:40 nit: {}'s
npm_g 2016/07/27 17:02:20 Done.
+ }
+ pFontDesc->m_RefCount++;
+ m_FaceMap[KeyNameFromSize(ttc_size, checksum)] = pFontDesc;
+ int face_index = GetTTCIndex(pFontDesc->m_pFontData, ttc_size, font_offset);
+ pFontDesc->m_TTCFace.m_pFaces[face_index] =
+ GetFixedFace(pFontDesc->m_pFontData, ttc_size, face_index);
+ return pFontDesc->m_TTCFace.m_pFaces[face_index];
+}
+
+FXFT_Face CFX_FontMgr::GetFixedFace(const uint8_t* pData,
+ uint32_t size,
+ int face_index) {
+ InitFTLibrary();
+ FXFT_Library library = m_FTLibrary;
+ FXFT_Face face = nullptr;
+ if (FXFT_New_Memory_Face(library, pData, size, face_index, &face))
+ return nullptr;
+ return FXFT_Set_Pixel_Sizes(face, 64, 64) ? nullptr : face;
+}
+
+FXFT_Face CFX_FontMgr::GetFileFace(const FX_CHAR* filename, int face_index) {
+ InitFTLibrary();
+ FXFT_Library library = m_FTLibrary;
+ FXFT_Face face = nullptr;
+ if (FXFT_New_Face(library, filename, face_index, &face))
+ return nullptr;
+ return FXFT_Set_Pixel_Sizes(face, 64, 64) ? nullptr : face;
+}
+
+void CFX_FontMgr::ReleaseFace(FXFT_Face face) {
+ if (!face) {
+ return;
dsinclair 2016/07/27 14:17:40 ditto
npm_g 2016/07/27 17:02:19 Done.
+ }
+ FX_BOOL bNeedFaceDone = TRUE;
+ auto it = m_FaceMap.begin();
+ while (it != m_FaceMap.end()) {
+ auto temp = it++;
+ int nRet = temp->second->ReleaseFace(face);
+ if (nRet == -1)
+ continue;
+ bNeedFaceDone = FALSE;
+ if (nRet == 0)
+ m_FaceMap.erase(temp);
+ break;
+ }
+ if (bNeedFaceDone && !m_pBuiltinMapper->IsBuiltinFace(face))
+ FXFT_Done_Face(face);
+}
+
+bool CFX_FontMgr::GetBuiltinFont(size_t index,
+ const uint8_t** pFontData,
+ uint32_t* size) {
+ if (index < FX_ArraySize(g_FoxitFonts)) {
+ *pFontData = g_FoxitFonts[index].m_pFontData;
+ *size = g_FoxitFonts[index].m_dwSize;
+ return true;
+ }
+ index -= FX_ArraySize(g_FoxitFonts);
+ if (index < FX_ArraySize(g_MMFonts)) {
+ *pFontData = g_MMFonts[index].m_pFontData;
+ *size = g_MMFonts[index].m_dwSize;
+ return true;
+ }
+ return false;
+}
« core/fxge/ge/cfx_folderfontinfo.cpp ('K') | « core/fxge/ge/cfx_fontmapper.cpp ('k') | core/fxge/ge/fx_ge_fontmap.cpp » ('j') | no next file with comments »

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