SkDocument_PDF.cpp revision f12a1673f024d30d30f06b9f88b5cc072b8a2d1e
199ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com/* 2a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary * Copyright 2011 Google Inc. 399ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com * 499ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com * Use of this source code is governed by a BSD-style license that can be 599ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com * found in the LICENSE file. 699ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com */ 799ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 899ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com#include "SkDocument.h" 9a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary#include "SkPDFCanon.h" 105867736b08d3689356b49f505bcf748c2194a0bcreed#include "SkPDFDevice.h" 11a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary#include "SkPDFFont.h" 122f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary#include "SkPDFStream.h" 13a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary#include "SkPDFTypes.h" 14f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary#include "SkPDFUtils.h" 15a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary#include "SkStream.h" 16a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 17f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanaryclass SkPDFDict; 18f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 19a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanarystatic void emit_pdf_header(SkWStream* stream) { 20a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("%PDF-1.4\n%"); 21a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // The PDF spec recommends including a comment with four bytes, all 22a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // with their high bits set. This is "Skia" with the high bits set. 23a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->write32(0xD3EBE9E1); 24a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("\n"); 25a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary} 26a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 27a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanarystatic void emit_pdf_footer(SkWStream* stream, 2837c46cad21632cfc1411b08d73af37a1fffe2944halcanary const SkPDFObjNumMap& objNumMap, 2937c46cad21632cfc1411b08d73af37a1fffe2944halcanary const SkPDFSubstituteMap& substitutes, 30a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkPDFObject* docCatalog, 31a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int64_t objCount, 32f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary int32_t xRefFileOffset, 33f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkPDFDict* info) { 34a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkPDFDict trailerDict; 35a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // TODO(vandebo): Linearized format will take a Prev entry too. 36a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // TODO(vandebo): PDF/A requires an ID entry. 37a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary trailerDict.insertInt("Size", int(objCount)); 3872266fd1fe9bfe078239a9d9e85f479faee30281halcanary trailerDict.insertObjRef("Root", SkRef(docCatalog)); 39f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkASSERT(info); 40f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary trailerDict.insertObjRef("Info", SkRef(info)); 41a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 42a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("trailer\n"); 4337c46cad21632cfc1411b08d73af37a1fffe2944halcanary trailerDict.emitObject(stream, objNumMap, substitutes); 44a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("\nstartxref\n"); 45a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeBigDecAsText(xRefFileOffset); 46a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("\n%%EOF"); 47a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary} 48a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 492f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanarystatic void perform_font_subsetting( 502f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary const SkTDArray<const SkPDFDevice*>& pageDevices, 5137c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkPDFSubstituteMap* substituteMap) { 5237c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkASSERT(substituteMap); 53a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 54a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkPDFGlyphSetMap usage; 552f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary for (int i = 0; i < pageDevices.count(); ++i) { 562f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary usage.merge(pageDevices[i]->getFontGlyphUsage()); 57a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 58a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkPDFGlyphSetMap::F2BIter iterator(usage); 59a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary const SkPDFGlyphSetMap::FontGlyphSetPair* entry = iterator.next(); 60a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary while (entry) { 61a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkAutoTUnref<SkPDFFont> subsetFont( 62a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary entry->fFont->getFontSubset(entry->fGlyphSet)); 63a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (subsetFont) { 6437c46cad21632cfc1411b08d73af37a1fffe2944halcanary substituteMap->setSubstitute(entry->fFont, subsetFont.get()); 65a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 66a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary entry = iterator.next(); 67a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 68a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary} 69a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 7072266fd1fe9bfe078239a9d9e85f479faee30281halcanarystatic SkPDFObject* create_pdf_page_content(const SkPDFDevice* pageDevice) { 7172266fd1fe9bfe078239a9d9e85f479faee30281halcanary SkAutoTDelete<SkStreamAsset> content(pageDevice->content()); 72385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkPDFStream(content.get()); 7372266fd1fe9bfe078239a9d9e85f479faee30281halcanary} 7472266fd1fe9bfe078239a9d9e85f479faee30281halcanary 752f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanarystatic SkPDFDict* create_pdf_page(const SkPDFDevice* pageDevice) { 76385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary SkAutoTUnref<SkPDFDict> page(new SkPDFDict("Page")); 7772266fd1fe9bfe078239a9d9e85f479faee30281halcanary page->insertObject("Resources", pageDevice->createResourceDict()); 7872266fd1fe9bfe078239a9d9e85f479faee30281halcanary page->insertObject("MediaBox", pageDevice->copyMediaBox()); 79ef6c50a80f77e6da84e198a34755dd42b1b0cf1ewangxianzhu SkAutoTUnref<SkPDFArray> annotations(new SkPDFArray); 80ef6c50a80f77e6da84e198a34755dd42b1b0cf1ewangxianzhu pageDevice->appendAnnotations(annotations); 81ef6c50a80f77e6da84e198a34755dd42b1b0cf1ewangxianzhu if (annotations->size() > 0) { 82ef6c50a80f77e6da84e198a34755dd42b1b0cf1ewangxianzhu page->insertObject("Annots", annotations.detach()); 832f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 8472266fd1fe9bfe078239a9d9e85f479faee30281halcanary page->insertObjRef("Contents", create_pdf_page_content(pageDevice)); 852f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary return page.detach(); 862f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary} 872f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 882f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanarystatic void generate_page_tree(const SkTDArray<SkPDFDict*>& pages, 892f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkTDArray<SkPDFDict*>* pageTree, 902f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkPDFDict** rootNode) { 912f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // PDF wants a tree describing all the pages in the document. We arbitrary 922f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // choose 8 (kNodeSize) as the number of allowed children. The internal 932f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // nodes have type "Pages" with an array of children, a parent pointer, and 942f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // the number of leaves below the node as "Count." The leaves are passed 952f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // into the method, have type "Page" and need a parent pointer. This method 962f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // builds the tree bottom up, skipping internal nodes that would have only 972f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // one child. 982f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary static const int kNodeSize = 8; 992f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1002f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // curNodes takes a reference to its items, which it passes to pageTree. 1012f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkTDArray<SkPDFDict*> curNodes; 1022f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary curNodes.setReserve(pages.count()); 1032f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary for (int i = 0; i < pages.count(); i++) { 1042f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkSafeRef(pages[i]); 1052f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary curNodes.push(pages[i]); 1062f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1072f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1082f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // nextRoundNodes passes its references to nodes on to curNodes. 1092f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkTDArray<SkPDFDict*> nextRoundNodes; 1102f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary nextRoundNodes.setReserve((pages.count() + kNodeSize - 1)/kNodeSize); 1112f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1122f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary int treeCapacity = kNodeSize; 1132f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary do { 1142f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary for (int i = 0; i < curNodes.count(); ) { 1152f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary if (i > 0 && i + 1 == curNodes.count()) { 1162f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary nextRoundNodes.push(curNodes[i]); 1172f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary break; 1182f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1192f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 12072266fd1fe9bfe078239a9d9e85f479faee30281halcanary SkAutoTUnref<SkPDFDict> newNode(new SkPDFDict("Pages")); 1212f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkAutoTUnref<SkPDFArray> kids(new SkPDFArray); 1222f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary kids->reserve(kNodeSize); 1232f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1242f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary int count = 0; 1252f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary for (; i < curNodes.count() && count < kNodeSize; i++, count++) { 12672266fd1fe9bfe078239a9d9e85f479faee30281halcanary curNodes[i]->insertObjRef("Parent", SkRef(newNode.get())); 12772266fd1fe9bfe078239a9d9e85f479faee30281halcanary kids->appendObjRef(SkRef(curNodes[i])); 1282f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1292f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // TODO(vandebo): put the objects in strict access order. 1302f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // Probably doesn't matter because they are so small. 1312f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary if (curNodes[i] != pages[0]) { 1322f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary pageTree->push(curNodes[i]); // Transfer reference. 1332f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } else { 1342f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkSafeUnref(curNodes[i]); 1352f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1362f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1372f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1382f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // treeCapacity is the number of leaf nodes possible for the 1392f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // current set of subtrees being generated. (i.e. 8, 64, 512, ...). 1402f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // It is hard to count the number of leaf nodes in the current 1412f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // subtree. However, by construction, we know that unless it's the 1422f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // last subtree for the current depth, the leaf count will be 1432f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // treeCapacity, otherwise it's what ever is left over after 1442f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary // consuming treeCapacity chunks. 1452f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary int pageCount = treeCapacity; 1462f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary if (i == curNodes.count()) { 1472f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary pageCount = ((pages.count() - 1) % treeCapacity) + 1; 1482f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 14972266fd1fe9bfe078239a9d9e85f479faee30281halcanary newNode->insertInt("Count", pageCount); 15072266fd1fe9bfe078239a9d9e85f479faee30281halcanary newNode->insertObject("Kids", kids.detach()); 15172266fd1fe9bfe078239a9d9e85f479faee30281halcanary nextRoundNodes.push(newNode.detach()); // Transfer reference. 1522f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1532f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1542f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary curNodes = nextRoundNodes; 1552f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary nextRoundNodes.rewind(); 1562f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary treeCapacity *= kNodeSize; 1572f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } while (curNodes.count() > 1); 1582f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 1592f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary pageTree->push(curNodes[0]); // Transfer reference. 1602f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary if (rootNode) { 1612f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary *rootNode = curNodes[0]; 1622f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary } 1632f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary} 1642f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary 165f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanarystruct Metadata { 166f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkTArray<SkDocument::Attribute> fInfo; 167f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkAutoTDelete<const SkTime::DateTime> fCreation; 168f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkAutoTDelete<const SkTime::DateTime> fModified; 169f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary}; 170f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 171f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanarystatic SkString pdf_date(const SkTime::DateTime& dt) { 172f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary int timeZoneMinutes = SkToInt(dt.fTimeZoneMinutes); 173f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary char timezoneSign = timeZoneMinutes >= 0 ? '+' : '-'; 174f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary int timeZoneHours = SkTAbs(timeZoneMinutes) / 60; 175f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary timeZoneMinutes = SkTAbs(timeZoneMinutes) % 60; 176f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary return SkStringPrintf( 177f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary "D:%04u%02u%02u%02u%02u%02u%c%02d'%02d'", 178f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary static_cast<unsigned>(dt.fYear), static_cast<unsigned>(dt.fMonth), 179f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary static_cast<unsigned>(dt.fDay), static_cast<unsigned>(dt.fHour), 180f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary static_cast<unsigned>(dt.fMinute), 181f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary static_cast<unsigned>(dt.fSecond), timezoneSign, timeZoneHours, 182f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary timeZoneMinutes); 183f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary} 184f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 185f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanarySkPDFDict* create_document_information_dict(const Metadata& metadata) { 186f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkAutoTUnref<SkPDFDict> dict(new SkPDFDict); 187f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary static const char* keys[] = { 188f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary "Title", "Author", "Subject", "Keywords", "Creator" }; 189f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary for (const char* key : keys) { 190f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary for (const SkDocument::Attribute& keyValue : metadata.fInfo) { 191f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary if (keyValue.fKey.equals(key)) { 192f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary dict->insertString(key, keyValue.fValue); 193f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 194f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 195f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 196f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary dict->insertString("Producer", "Skia/PDF"); 197f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary if (metadata.fCreation) { 198f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary dict->insertString("CreationDate", pdf_date(*metadata.fCreation.get())); 199f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 200f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary if (metadata.fModified) { 201f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary dict->insertString("ModDate", pdf_date(*metadata.fModified.get())); 202f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 203f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary return dict.detach(); 204f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary} 205f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 206a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanarystatic bool emit_pdf_document(const SkTDArray<const SkPDFDevice*>& pageDevices, 207f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary const Metadata& metadata, 208a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkWStream* stream) { 209a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (pageDevices.isEmpty()) { 210a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary return false; 211a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 212a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 2132f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkTDArray<SkPDFDict*> pages; 214385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary SkAutoTUnref<SkPDFDict> dests(new SkPDFDict); 215a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 216a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary for (int i = 0; i < pageDevices.count(); i++) { 217a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkASSERT(pageDevices[i]); 218a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkASSERT(i == 0 || 219a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pageDevices[i - 1]->getCanon() == pageDevices[i]->getCanon()); 2202f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary SkAutoTUnref<SkPDFDict> page(create_pdf_page(pageDevices[i])); 2212f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary pageDevices[i]->appendDestinations(dests, page.get()); 222a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pages.push(page.detach()); 223a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 224a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 225a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkTDArray<SkPDFDict*> pageTree; 226385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary SkAutoTUnref<SkPDFDict> docCatalog(new SkPDFDict("Catalog")); 227a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 228a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkPDFDict* pageTreeRoot; 2292f7ebcb424cd1d1acf07478157f86b0a3eafd712halcanary generate_page_tree(pages, &pageTree, &pageTreeRoot); 23072266fd1fe9bfe078239a9d9e85f479faee30281halcanary docCatalog->insertObjRef("Pages", SkRef(pageTreeRoot)); 231a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 23272266fd1fe9bfe078239a9d9e85f479faee30281halcanary if (dests->size() > 0) { 23372266fd1fe9bfe078239a9d9e85f479faee30281halcanary docCatalog->insertObjRef("Dests", dests.detach()); 23472266fd1fe9bfe078239a9d9e85f479faee30281halcanary } 235a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 236a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary /* TODO(vandebo): output intent 237a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkAutoTUnref<SkPDFDict> outputIntent = new SkPDFDict("OutputIntent"); 23872266fd1fe9bfe078239a9d9e85f479faee30281halcanary outputIntent->insertName("S", "GTS_PDFA1"); 23972266fd1fe9bfe078239a9d9e85f479faee30281halcanary outputIntent->insertString("OutputConditionIdentifier", "sRGB"); 24072266fd1fe9bfe078239a9d9e85f479faee30281halcanary SkAutoTUnref<SkPDFArray> intentArray(new SkPDFArray); 24172266fd1fe9bfe078239a9d9e85f479faee30281halcanary intentArray->appendObject(SkRef(outputIntent.get())); 24272266fd1fe9bfe078239a9d9e85f479faee30281halcanary docCatalog->insertObject("OutputIntent", intentArray.detach()); 243a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary */ 244a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 245a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // Build font subsetting info before proceeding. 24637c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkPDFSubstituteMap substitutes; 24737c46cad21632cfc1411b08d73af37a1fffe2944halcanary perform_font_subsetting(pageDevices, &substitutes); 248a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 249f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary SkAutoTUnref<SkPDFDict> infoDict( 250f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary create_document_information_dict(metadata)); 25137c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkPDFObjNumMap objNumMap; 252f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary if (objNumMap.addObject(infoDict)) { 253f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary infoDict->addResources(&objNumMap, substitutes); 254f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 25537c46cad21632cfc1411b08d73af37a1fffe2944halcanary if (objNumMap.addObject(docCatalog.get())) { 25637c46cad21632cfc1411b08d73af37a1fffe2944halcanary docCatalog->addResources(&objNumMap, substitutes); 257a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 2584f2b33159b5a5da869ed605abf1d73b5cd429934halcanary size_t baseOffset = stream->bytesWritten(); 259a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary emit_pdf_header(stream); 260a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkTDArray<int32_t> offsets; 26137c46cad21632cfc1411b08d73af37a1fffe2944halcanary for (int i = 0; i < objNumMap.objects().count(); ++i) { 26237c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkPDFObject* object = objNumMap.objects()[i]; 2634f2b33159b5a5da869ed605abf1d73b5cd429934halcanary size_t offset = stream->bytesWritten(); 2644f2b33159b5a5da869ed605abf1d73b5cd429934halcanary // This assert checks that size(pdf_header) > 0 and that 2654f2b33159b5a5da869ed605abf1d73b5cd429934halcanary // the output stream correctly reports bytesWritten(). 2664f2b33159b5a5da869ed605abf1d73b5cd429934halcanary SkASSERT(offset > baseOffset); 2674f2b33159b5a5da869ed605abf1d73b5cd429934halcanary offsets.push(SkToS32(offset - baseOffset)); 26837c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkASSERT(object == substitutes.getSubstitute(object)); 26937c46cad21632cfc1411b08d73af37a1fffe2944halcanary SkASSERT(objNumMap.getObjectNumber(object) == i + 1); 270a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeDecAsText(i + 1); 271a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText(" 0 obj\n"); // Generation number is always 0. 27237c46cad21632cfc1411b08d73af37a1fffe2944halcanary object->emitObject(stream, objNumMap, substitutes); 273a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("\nendobj\n"); 274a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 275a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int32_t xRefFileOffset = SkToS32(stream->bytesWritten() - baseOffset); 276a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 27741f88f0251cf48eb06f3f8d143aac8562a230889halcanary // Include the zeroth object in the count. 278a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int32_t objCount = SkToS32(offsets.count() + 1); 279a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 280a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("xref\n0 "); 28141f88f0251cf48eb06f3f8d143aac8562a230889halcanary stream->writeDecAsText(objCount); 282a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText("\n0000000000 65535 f \n"); 283a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary for (int i = 0; i < offsets.count(); i++) { 284a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkASSERT(offsets[i] > 0); 285a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeBigDecAsText(offsets[i], 10); 286a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary stream->writeText(" 00000 n \n"); 287a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 28837c46cad21632cfc1411b08d73af37a1fffe2944halcanary emit_pdf_footer(stream, objNumMap, substitutes, docCatalog.get(), objCount, 289f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary xRefFileOffset, infoDict); 290a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 291a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // The page tree has both child and parent pointers, so it creates a 292a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary // reference cycle. We must clear that cycle to properly reclaim memory. 293a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary for (int i = 0; i < pageTree.count(); i++) { 294a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pageTree[i]->clear(); 295a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 296a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pageTree.safeUnrefAll(); 297a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pages.unrefAll(); 298a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary return true; 299a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary} 300a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 301a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary#if 0 302a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary// TODO(halcanary): expose notEmbeddableCount in SkDocument 303a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanaryvoid GetCountOfFontTypes( 304a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary const SkTDArray<SkPDFDevice*>& pageDevices, 305a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int counts[SkAdvancedTypefaceMetrics::kOther_Font + 1], 306a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int* notSubsettableCount, 307a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int* notEmbeddableCount) { 308a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary sk_bzero(counts, sizeof(int) * 309a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary (SkAdvancedTypefaceMetrics::kOther_Font + 1)); 310a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkTDArray<SkFontID> seenFonts; 311a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int notSubsettable = 0; 312a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary int notEmbeddable = 0; 313a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 314a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary for (int pageNumber = 0; pageNumber < pageDevices.count(); pageNumber++) { 315a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary const SkTDArray<SkPDFFont*>& fontResources = 316a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary pageDevices[pageNumber]->getFontResources(); 317a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary for (int font = 0; font < fontResources.count(); font++) { 318a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary SkFontID fontID = fontResources[font]->typeface()->uniqueID(); 319a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (seenFonts.find(fontID) == -1) { 320a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary counts[fontResources[font]->getType()]++; 321a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary seenFonts.push(fontID); 322a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (!fontResources[font]->canSubset()) { 323a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary notSubsettable++; 324a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 325a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (!fontResources[font]->canEmbed()) { 326a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary notEmbeddable++; 327a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 328a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 329a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 330a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 331a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (notSubsettableCount) { 332a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary *notSubsettableCount = notSubsettable; 333a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary 334a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 335a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary if (notEmbeddableCount) { 336a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary *notEmbeddableCount = notEmbeddable; 337a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary } 338a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary} 339a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary#endif 340f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 341f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanarytemplate <typename T> static T* clone(const T* o) { return o ? new T(*o) : nullptr; } 342a43b41538ad6af0f2b7742b4ade8265d344b9d64halcanary//////////////////////////////////////////////////////////////////////////////// 34399ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 3447a0118465a2dd1783d7b19b026bedd7e13afadf2halcanarynamespace { 34599ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.comclass SkDocument_PDF : public SkDocument { 34699ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.compublic: 3478c92dc1dc281649f9e6b0ff534c25bc89dded3eahalcanary SkDocument_PDF(SkWStream* stream, 348792c80f5a7b66e75d42664ccb298f31962c6654chalcanary void (*doneProc)(SkWStream*, bool), 3498c294900f31d8d032b62182f011019276d27d5d0commit-bot@chromium.org SkScalar rasterDpi) 3508c92dc1dc281649f9e6b0ff534c25bc89dded3eahalcanary : SkDocument(stream, doneProc) 3518c92dc1dc281649f9e6b0ff534c25bc89dded3eahalcanary , fRasterDpi(rasterDpi) {} 3526319367bdcbf5e5050632ab97973f5035d0dd8faskia.committer@gmail.com 35399ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com virtual ~SkDocument_PDF() { 35499ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com // subclasses must call close() in their destructors 35599ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com this->close(); 35699ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com } 35799ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 35899ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.comprotected: 359f4219ddf31b2171a5576ab98d1fd2deab4d816fdtfarina SkCanvas* onBeginPage(SkScalar width, SkScalar height, 360f4219ddf31b2171a5576ab98d1fd2deab4d816fdtfarina const SkRect& trimBox) override { 361a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkASSERT(!fCanvas.get()); 36299ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 363a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkISize pageSize = SkISize::Make( 364a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkScalarRoundToInt(width), SkScalarRoundToInt(height)); 3657a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary SkAutoTUnref<SkPDFDevice> device( 3667a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary SkPDFDevice::Create(pageSize, fRasterDpi, &fCanon)); 367385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary fCanvas.reset(new SkCanvas(device.get())); 3687a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary fPageDevices.push(device.detach()); 369be519ad718371cc40c432572173e47f851476486halcanary fCanvas->clipRect(trimBox); 37093f816129356d6764a9402817cc36bffd8f991fbhalcanary fCanvas->translate(trimBox.x(), trimBox.y()); 371a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary return fCanvas.get(); 37299ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com } 37399ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 37436352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onEndPage() override { 375a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkASSERT(fCanvas.get()); 37699ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com fCanvas->flush(); 37796fcdcc219d2a0d3579719b84b28bede76efba64halcanary fCanvas.reset(nullptr); 37899ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com } 37999ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 38036352bf5e38f45a70ee4f4fc132a38048d38206dmtklein bool onClose(SkWStream* stream) override { 381a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkASSERT(!fCanvas.get()); 38299ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 383f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary bool success = emit_pdf_document(fPageDevices, fMetadata, stream); 3847a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary fPageDevices.unrefAll(); 3852e3f9d8a9309686eeb4c76ccfde5800da87a68b3halcanary fCanon.reset(); 386b5a6651f9f69570d964382134d64360915db9a29commit-bot@chromium.org return success; 387b5a6651f9f69570d964382134d64360915db9a29commit-bot@chromium.org } 388b5a6651f9f69570d964382134d64360915db9a29commit-bot@chromium.org 38936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onAbort() override { 3907a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary fPageDevices.unrefAll(); 3912e3f9d8a9309686eeb4c76ccfde5800da87a68b3halcanary fCanon.reset(); 39299ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com } 39399ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 394f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary void setMetadata(const SkTArray<SkDocument::Attribute>& info, 395f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary const SkTime::DateTime* creationDate, 396f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary const SkTime::DateTime* modifiedDate) override { 397f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary fMetadata.fInfo = info; 398f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary fMetadata.fCreation.reset(clone(creationDate)); 399f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary fMetadata.fModified.reset(clone(modifiedDate)); 400f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary } 401f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary 40299ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.comprivate: 403a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkPDFCanon fCanon; 4046d622703e578eddc64ab4e3340d0ab0033268799halcanary SkTDArray<const SkPDFDevice*> fPageDevices; 405a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkAutoTUnref<SkCanvas> fCanvas; 406a1f1ee98a1f6d0770f6243270ca2f0e6c92efabahalcanary SkScalar fRasterDpi; 407f12a1673f024d30d30f06b9f88b5cc072b8a2d1ehalcanary Metadata fMetadata; 40899ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com}; 4097a0118465a2dd1783d7b19b026bedd7e13afadf2halcanary} // namespace 41099ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com/////////////////////////////////////////////////////////////////////////////// 41199ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 4128c92dc1dc281649f9e6b0ff534c25bc89dded3eahalcanarySkDocument* SkDocument::CreatePDF(SkWStream* stream, SkScalar dpi) { 41396fcdcc219d2a0d3579719b84b28bede76efba64halcanary return stream ? new SkDocument_PDF(stream, nullptr, dpi) : nullptr; 41499ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com} 41599ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com 4168c92dc1dc281649f9e6b0ff534c25bc89dded3eahalcanarySkDocument* SkDocument::CreatePDF(const char path[], SkScalar dpi) { 417385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary SkFILEWStream* stream = new SkFILEWStream(path); 41899ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com if (!stream->isValid()) { 419385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary delete stream; 42096fcdcc219d2a0d3579719b84b28bede76efba64halcanary return nullptr; 42199ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com } 422385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary auto delete_wstream = [](SkWStream* stream, bool) { delete stream; }; 423385fe4d4b62d7d1dd76116dd570df3290a2f487bhalcanary return new SkDocument_PDF(stream, delete_wstream, dpi); 42499ac02bb701c1e30b20f2174aac25ffbe487c0afreed@google.com} 425