SkFontHost_linux.cpp revision 0c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 78a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 88a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkFontHost.h" 118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDescriptor.h" 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkMMapStream.h" 138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkOSFile.h" 148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPaint.h" 158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkString.h" 168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkStream.h" 178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkThread.h" 188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkTSearch.h" 198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include <stdio.h> 208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifndef SK_FONT_FILE_PREFIX 228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com #define SK_FONT_FILE_PREFIX "/usr/share/fonts/truetype/msttcorefonts/" 238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 253681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.comSkTypeface::Style find_name_and_attributes(SkStream* stream, SkString* name, 263681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com bool* isFixedWidth); 278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void GetFullPathForSysFonts(SkString* full, const char name[]) 298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com{ 308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com full->append(SK_FONT_FILE_PREFIX); 318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com full->append(name); 328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct FamilyRec; 378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* This guy holds a mapping of a name -> family, used for looking up fonts. 398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Since it is stored in a stretchy array that doesn't preserve object 408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com semantics, we don't use constructor/destructors, but just have explicit 418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com helpers to manage our internal bookkeeping. 428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct NameFamilyPair { 448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* fName; // we own this 458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* fFamily; // we don't own this, we just reference it 468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com void construct(const char name[], FamilyRec* family) 488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fName = strdup(name); 508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fFamily = family; // we don't own this, so just record the referene 518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com void destruct() 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com free((char*)fName); 558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // we don't own family, so just ignore our reference 568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// we use atomic_inc to grow this for each typeface we create 608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic int32_t gUniqueFontID; 618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// this is the mutex that protects these globals 638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkMutex gFamilyMutex; 648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic FamilyRec* gFamilyHead; 658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTDArray<NameFamilyPair> gNameList; 668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct FamilyRec { 688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* fNext; 698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTypeface* fFaces[4]; 708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec() 728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fNext = gFamilyHead; 748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(fFaces, 0, sizeof(fFaces)); 758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com gFamilyHead = this; 768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTypeface* find_best_face(const FamilyRec* family, 801bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com SkTypeface::Style style) { 818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTypeface* const* faces = family->fFaces; 828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (faces[style] != NULL) { // exact match 848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return faces[style]; 858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // look for a matching bold 878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com style = (SkTypeface::Style)(style ^ SkTypeface::kItalic); 888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (faces[style] != NULL) { 898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return faces[style]; 908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // look for the plain 928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (faces[SkTypeface::kNormal] != NULL) { 938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return faces[SkTypeface::kNormal]; 948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // look for anything 968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (faces[i] != NULL) { 988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return faces[i]; 998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // should never get here, since the faces list should not be empty 1020c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("faces list is empty"); 1038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1061bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic FamilyRec* find_family(const SkTypeface* member) { 1078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* curr = gFamilyHead; 1088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (curr != NULL) { 1098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 1108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (curr->fFaces[i] == member) { 1118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return curr; 1128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com curr = curr->fNext; 1158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 119f2afb67bab01062d2632543c1f004b166bf01e31reed@android.comstatic SkTypeface* find_from_uniqueID(uint32_t uniqueID) { 1208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* curr = gFamilyHead; 1218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (curr != NULL) { 1228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 1238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTypeface* face = curr->fFaces[i]; 1248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (face != NULL && face->uniqueID() == uniqueID) { 125f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com return face; 1268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com curr = curr->fNext; 1298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13017b78946096265d80215a6c946286ecaa35ea7edepoger@google.com return NULL; 1318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 133f2afb67bab01062d2632543c1f004b166bf01e31reed@android.comstatic bool valid_uniqueID(uint32_t uniqueID) { 134f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com return find_from_uniqueID(uniqueID) != NULL; 135f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com} 136f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com 1378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* Remove reference to this face from its family. If the resulting family 1388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com is empty (has no faces), return that family, otherwise return NULL 1398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 1401bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic FamilyRec* remove_from_family(const SkTypeface* face) { 1418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* family = find_family(face); 1428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(family->fFaces[face->style()] == face); 1438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com family->fFaces[face->style()] = NULL; 1448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 1468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (family->fFaces[i] != NULL) { // family is non-empty 1478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return family; // return the empty family 1518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// maybe we should make FamilyRec be doubly-linked 1541bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic void detach_and_delete_family(FamilyRec* family) { 1558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* curr = gFamilyHead; 1568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* prev = NULL; 1578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (curr != NULL) { 1598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* next = curr->fNext; 1608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (curr == family) { 1618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (prev == NULL) { 1628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com gFamilyHead = next; 1638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com prev->fNext = next; 1658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(family); 1678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 1688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com prev = curr; 1708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com curr = next; 1718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1720c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("Yikes, couldn't find family in our list to remove/delete"); 1738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic FamilyRec* find_familyrec(const char name[]) { 1768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const NameFamilyPair* list = gNameList.begin(); 1778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = SkStrLCSearch(&list[0].fName, gNameList.count(), name, 1788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sizeof(list[0])); 1798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return index >= 0 ? list[index].fFamily : NULL; 1808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTypeface* find_typeface(const char name[], SkTypeface::Style style) { 1838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* rec = find_familyrec(name); 1848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return rec ? find_best_face(rec, style) : NULL; 1858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTypeface* find_typeface(const SkTypeface* familyMember, 1881bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com SkTypeface::Style style) { 1898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const FamilyRec* family = find_family(familyMember); 1908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return family ? find_best_face(family, style) : NULL; 1918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1931bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic void add_name(const char name[], FamilyRec* family) { 1948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoAsciiToLC tolc(name); 1958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com name = tolc.lc(); 1968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com NameFamilyPair* list = gNameList.begin(); 1988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = gNameList.count(); 1998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = SkStrLCSearch(&list[0].fName, count, name, sizeof(list[0])); 2018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index < 0) { 2038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com list = gNameList.insert(~index); 2048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com list->construct(name, family); 2058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2081bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic void remove_from_names(FamilyRec* emptyFamily) { 2098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef SK_DEBUG 2108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 2118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(emptyFamily->fFaces[i] == NULL); 2128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 2148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTDArray<NameFamilyPair>& list = gNameList; 2168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // must go backwards when removing 2188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = list.count() - 1; i >= 0; --i) { 2198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com NameFamilyPair* pair = &list[i]; 2208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (pair->fFamily == emptyFamily) { 2218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pair->destruct(); 2228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com list.remove(i); 2238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 2288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass FamilyTypeface : public SkTypeface { 2308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 2313681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com FamilyTypeface(Style style, bool sysFont, FamilyRec* family, bool isFixedWidth) 2323681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com : SkTypeface(style, sk_atomic_inc(&gUniqueFontID) + 1, isFixedWidth) { 2338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fIsSysFont = sysFont; 2348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMutexAcquire ac(gFamilyMutex); 2368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == family) { 2388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com family = SkNEW(FamilyRec); 2398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com family->fFaces[style] = this; 2418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fFamilyRec = family; // just record it so we can return it if asked 2428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2441bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com virtual ~FamilyTypeface() { 2458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMutexAcquire ac(gFamilyMutex); 2468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // remove us from our family. If the family is now empty, we return 2488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // that and then remove that family from the name list 2498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* family = remove_from_family(this); 2508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != family) { 2518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com remove_from_names(family); 2528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com detach_and_delete_family(family); 2538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool isSysFont() const { return fIsSysFont; } 2578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* getFamily() const { return fFamilyRec; } 25822dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com // openStream returns a SkStream that has been ref-ed 2598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual SkStream* openStream() = 0; 2608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual const char* getUniqueString() const = 0; 2618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 2638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* fFamilyRec; // we don't own this, just point to it 2648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool fIsSysFont; 2658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef SkTypeface INHERITED; 2678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 2688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 2708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 271f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com/* This subclass is just a place holder for when we have no fonts available. 272f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com It exists so that our globals (e.g. gFamilyHead) that expect *something* 273f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com will not be null. 274f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com */ 275f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.comclass EmptyTypeface : public FamilyTypeface { 276f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.compublic: 2773681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com EmptyTypeface() : INHERITED(SkTypeface::kNormal, true, NULL, false) {} 278f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com 279f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com // overrides 280f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com virtual SkStream* openStream() { return NULL; } 281f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com virtual const char* getUniqueString() const { return NULL; } 282f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com 283f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.comprivate: 284f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com typedef FamilyTypeface INHERITED; 285f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com}; 286f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com 2878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass StreamTypeface : public FamilyTypeface { 2888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 2898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com StreamTypeface(Style style, bool sysFont, FamilyRec* family, 2903681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com SkStream* stream, bool isFixedWidth) 2913681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com : INHERITED(style, sysFont, family, isFixedWidth) { 2921c0c5a0a52d0d94653c6ca959a43226228a5ca08reed@android.com stream->ref(); 2938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fStream = stream; 2948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2951bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com virtual ~StreamTypeface() { 2961c0c5a0a52d0d94653c6ca959a43226228a5ca08reed@android.com fStream->unref(); 2978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // overrides 30022dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com virtual SkStream* openStream() 30122dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com { 30222dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com // openStream returns a refed stream. 30322dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com fStream->ref(); 30422dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com return fStream; 30522dbaaf405e70da862a430f5e2558ce63ce17372reed@android.com } 3068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual const char* getUniqueString() const { return NULL; } 3078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 3098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkStream* fStream; 3108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef FamilyTypeface INHERITED; 3128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 3138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass FileTypeface : public FamilyTypeface { 3158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 3168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FileTypeface(Style style, bool sysFont, FamilyRec* family, 3173681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com const char path[], bool isFixedWidth) 3183681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com : INHERITED(style, sysFont, family, isFixedWidth) { 3198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPath.set(path); 3208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // overrides 3238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual SkStream* openStream() 3248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 3258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkStream* stream = SkNEW_ARGS(SkMMAPStream, (fPath.c_str())); 3268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // check for failure 3288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (stream->getLength() <= 0) { 3298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(stream); 3308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // maybe MMAP isn't supported. try FILE 3318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream = SkNEW_ARGS(SkFILEStream, (fPath.c_str())); 3328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (stream->getLength() <= 0) { 3338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(stream); 3348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream = NULL; 3358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return stream; 3388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 33951709c748e32bb115103b1468eb507f4ccaa7ee8reed@android.com 3408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual const char* getUniqueString() const { 3418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* str = strrchr(fPath.c_str(), '/'); 3428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (str) { 3438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com str += 1; // skip the '/' 3448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return str; 3468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 3498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkString fPath; 3508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef FamilyTypeface INHERITED; 3528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 3538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 3558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 3568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool get_name_and_style(const char path[], SkString* name, 3583681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com SkTypeface::Style* style, bool* isFixedWidth) { 3598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMMAPStream stream(path); 3608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (stream.getLength() > 0) { 3613681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com *style = find_name_and_attributes(&stream, name, isFixedWidth); 3628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 3638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com else { 3658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFILEStream stream(path); 3668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (stream.getLength() > 0) { 3673681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com *style = find_name_and_attributes(&stream, name, isFixedWidth); 3688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 3698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDebugf("---- failed to open <%s> as a font\n", path); 3738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 3748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// these globals are assigned (once) by load_system_fonts() 3778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTypeface* gFallBackTypeface; 3788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic FamilyRec* gDefaultFamily; 3798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic SkTypeface* gDefaultNormal; 3808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3811bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comstatic void load_system_fonts() { 3828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // check if we've already be called 3838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != gDefaultNormal) { 3846fb8f77abb561cec3eeb2d5c71ae9196770ddf00reed@google.com// printf("---- default font %p\n", gDefaultNormal); 3858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 3868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 387f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com 388f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com SkOSFile::Iter iter(SK_FONT_FILE_PREFIX, ".ttf"); 389f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com SkString name; 390f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com int count = 0; 3918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (iter.next(&name, false)) { 3938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkString filename; 3948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com GetFullPathForSysFonts(&filename, name.c_str()); 3958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3963681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com bool isFixedWidth; 3978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkString realname; 3986963af2327a9738d22716759dc39526a4935ecdereed@google.com SkTypeface::Style style = SkTypeface::kNormal; // avoid uninitialized warning 3998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4003681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com if (!get_name_and_style(filename.c_str(), &realname, &style, &isFixedWidth)) { 4018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDebugf("------ can't load <%s> as a font\n", filename.c_str()); 4028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com continue; 4038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 404f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com 4058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("font: <%s> %d <%s>\n", realname.c_str(), style, filename.c_str()); 406f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com 4078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyRec* family = find_familyrec(realname.c_str()); 408887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com if (family && family->fFaces[style]) { 409887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com// SkDebugf("---- skipping duplicate typeface %s style %d\n", 410887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com// realname.c_str(), style); 411887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com continue; 412887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com } 413887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com 4148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // this constructor puts us into the global gFamilyHead llist 4158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com FamilyTypeface* tf = SkNEW_ARGS(FileTypeface, 4168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com (style, 4178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com true, // system-font (cannot delete) 4188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com family, // what family to join 4193681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com filename.c_str(), 4203681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com isFixedWidth) // filename 4218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ); 4228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == family) { 4248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com add_name(realname.c_str(), tf->getFamily()); 4258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 426f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com count += 1; 427f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com } 428f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com 429f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com if (0 == count) { 430f244f1b19f07b1c946f8d7e24decbe1809dda7f6reed@android.com SkNEW(EmptyTypeface); 4318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 432f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com 4338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // do this after all fonts are loaded. This is our default font, and it 4348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // acts as a sentinel so we only execute load_system_fonts() once 4358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static const char* gDefaultNames[] = { 4368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com "Arial", "Verdana", "Times New Roman", NULL 4378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 4388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char** names = gDefaultNames; 4398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (*names) { 4408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTypeface* tf = find_typeface(*names++, SkTypeface::kNormal); 4418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (tf) { 4428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com gDefaultNormal = tf; 4438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 4448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // check if we found *something* 4478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == gDefaultNormal) { 4488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == gFamilyHead) { 4498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_throw(); 4508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < 4; i++) { 4528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((gDefaultNormal = gFamilyHead->fFaces[i]) != NULL) { 4538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 4548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == gDefaultNormal) { 4588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_throw(); 4598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com gFallBackTypeface = gDefaultNormal; 4618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com gDefaultFamily = find_family(gDefaultNormal); 4628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("---- default %p head %p family %p\n", gDefaultNormal, gFamilyHead, gDefaultFamily); 4648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 4678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) { 4698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if 0 4708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* name = ((FamilyTypeface*)face)->getUniqueString(); 4718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream->write8((uint8_t)face->getStyle()); 4738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == name || 0 == *name) { 4758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream->writePackedUInt(0); 4768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // SkDebugf("--- fonthost serialize null\n"); 4778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 4788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t len = strlen(name); 4798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream->writePackedUInt(len); 4808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream->write(name, len); 4818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // SkDebugf("--- fonthost serialize <%s> %d\n", name, face->getStyle()); 4828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 4848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_throw(); 4858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkTypeface* SkFontHost::Deserialize(SkStream* stream) { 4888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if 0 4898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com load_system_fonts(); 4908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int style = stream->readU8(); 4928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int len = stream->readPackedUInt(); 4948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (len > 0) { 4958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkString str; 4968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com str.resize(len); 4978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream->read(str.writable_str(), len); 4988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const FontInitRec* rec = gSystemFonts; 5008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < SK_ARRAY_COUNT(gSystemFonts); i++) { 5018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (strcmp(rec[i].fFileName, str.c_str()) == 0) { 5028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // backup until we hit the fNames 5038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int j = i; j >= 0; --j) { 5048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (rec[j].fNames != NULL) { 5055f6a0762f14f73859e60f0e8339ca133d10e4d3cagl@chromium.org return SkFontHost::CreateTypeface(NULL, rec[j].fNames[0], NULL, 0, 506b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.com (SkTypeface::Style)style); 5078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5125f6a0762f14f73859e60f0e8339ca133d10e4d3cagl@chromium.org return SkFontHost::CreateTypeface(NULL, NULL, NULL, 0, (SkTypeface::Style)style); 5138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 5148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_throw(); 5156f25297d93ed7fb29264cd072ad15ec25d1e27e7reed@android.com return NULL; 5168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 5198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 520b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.comSkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, 521b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.com const char familyName[], 5225f6a0762f14f73859e60f0e8339ca133d10e4d3cagl@chromium.org const void* data, size_t bytelength, 523b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.com SkTypeface::Style style) { 5248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com load_system_fonts(); 5258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMutexAcquire ac(gFamilyMutex); 5278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // clip to legal style bits 5298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com style = (SkTypeface::Style)(style & SkTypeface::kBoldItalic); 5308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTypeface* tf = NULL; 5328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != familyFace) { 5348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tf = find_typeface(familyFace, style); 5358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (NULL != familyName) { 5368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // SkDebugf("======= familyName <%s>\n", familyName); 5378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tf = find_typeface(familyName, style); 5388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == tf) { 5418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tf = find_best_face(gDefaultFamily, style); 5428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 543887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com 544887e4f325c2b9b306116a4eea37c5afad1db3346reed@android.com SkSafeRef(tf); 5458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return tf; 5468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 548f2afb67bab01062d2632543c1f004b166bf01e31reed@android.combool SkFontHost::ValidFontID(uint32_t fontID) { 5498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMutexAcquire ac(gFamilyMutex); 5508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 551b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.com return valid_uniqueID(fontID); 5528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5541bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comSkStream* SkFontHost::OpenStream(uint32_t fontID) { 555f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com FamilyTypeface* tf = (FamilyTypeface*)find_from_uniqueID(fontID); 5568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkStream* stream = tf ? tf->openStream() : NULL; 5578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5581c0c5a0a52d0d94653c6ca959a43226228a5ca08reed@android.com if (stream && stream->getLength() == 0) { 5591c0c5a0a52d0d94653c6ca959a43226228a5ca08reed@android.com stream->unref(); 5608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stream = NULL; 5618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return stream; 5638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 565ac98154faa0e786444bafcd093fd4842127fbf18reed@android.comsize_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length, 566ac98154faa0e786444bafcd093fd4842127fbf18reed@android.com int32_t* index) { 567ac98154faa0e786444bafcd093fd4842127fbf18reed@android.com SkDebugf("SkFontHost::GetFileName unimplemented\n"); 568ac98154faa0e786444bafcd093fd4842127fbf18reed@android.com return 0; 569ac98154faa0e786444bafcd093fd4842127fbf18reed@android.com} 570ac98154faa0e786444bafcd093fd4842127fbf18reed@android.com 5717d26c590f6bc431a5ecf5c25619b64d058613a4dreed@google.comSkFontID SkFontHost::NextLogicalFont(SkFontID currFontID, SkFontID origFontID) { 572f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com return 0; 5738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 5768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 577b1d9d2ef2803bd55fdc886d13033b48f8450dd14reed@android.comSkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { 5788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == stream || stream->getLength() <= 0) { 5798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(stream); 5808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 5818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5823681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com 5833681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com bool isFixedWidth; 5848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkString name; 5853681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com SkTypeface::Style style = find_name_and_attributes(stream, &name, &isFixedWidth); 5868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5873681276c7847594ff7b175c01dbd6b5d87e9d286reed@google.com return SkNEW_ARGS(StreamTypeface, (style, false, NULL, stream, isFixedWidth)); 5888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5901bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.comSkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { 5911bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com SkTypeface* face = NULL; 5921bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com SkFILEStream* stream = SkNEW_ARGS(SkFILEStream, (path)); 5931bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com 5941bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com if (stream->isValid()) { 595f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com face = CreateTypefaceFromStream(stream); 5961bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com } 5971bfd0ca7804a082ce29fd56adb311c79fc11a99freed@android.com stream->unref(); 598f2afb67bab01062d2632543c1f004b166bf01e31reed@android.com return face; 5990becfc5b7608ba67a4c98721cd61939e89ac5653reed@android.com} 6000becfc5b7608ba67a4c98721cd61939e89ac5653reed@android.com 601