SkPDFDocument.cpp revision c213f0df22430dce53a49416c748a08715b62d9c
1/* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "SkPDFCanon.h" 9#include "SkPDFCanvas.h" 10#include "SkPDFDevice.h" 11#include "SkPDFDocument.h" 12#include "SkPDFUtils.h" 13#include "SkStream.h" 14 15SkPDFObjectSerializer::SkPDFObjectSerializer() : fBaseOffset(0), fNextToBeSerialized(0) {} 16 17template <class T> static void renew(T* t) { t->~T(); new (t) T; } 18 19SkPDFObjectSerializer::~SkPDFObjectSerializer() { 20 for (int i = 0; i < fObjNumMap.objects().count(); ++i) { 21 fObjNumMap.objects()[i]->drop(); 22 } 23} 24 25void SkPDFObjectSerializer::addObjectRecursively(const sk_sp<SkPDFObject>& object) { 26 fObjNumMap.addObjectRecursively(object.get(), fSubstituteMap); 27} 28 29#define SKPDF_MAGIC "\xD3\xEB\xE9\xE1" 30#ifndef SK_BUILD_FOR_WIN32 31static_assert((SKPDF_MAGIC[0] & 0x7F) == "Skia"[0], ""); 32static_assert((SKPDF_MAGIC[1] & 0x7F) == "Skia"[1], ""); 33static_assert((SKPDF_MAGIC[2] & 0x7F) == "Skia"[2], ""); 34static_assert((SKPDF_MAGIC[3] & 0x7F) == "Skia"[3], ""); 35#endif 36void SkPDFObjectSerializer::serializeHeader(SkWStream* wStream, 37 const SkDocument::PDFMetadata& md) { 38 fBaseOffset = wStream->bytesWritten(); 39 static const char kHeader[] = "%PDF-1.4\n%" SKPDF_MAGIC "\n"; 40 wStream->write(kHeader, strlen(kHeader)); 41 // The PDF spec recommends including a comment with four 42 // bytes, all with their high bits set. "\xD3\xEB\xE9\xE1" is 43 // "Skia" with the high bits set. 44 fInfoDict = SkPDFMetadata::MakeDocumentInformationDict(md); 45 this->addObjectRecursively(fInfoDict); 46 this->serializeObjects(wStream); 47} 48#undef SKPDF_MAGIC 49 50// Serialize all objects in the fObjNumMap that have not yet been serialized; 51void SkPDFObjectSerializer::serializeObjects(SkWStream* wStream) { 52 const SkTArray<sk_sp<SkPDFObject>>& objects = fObjNumMap.objects(); 53 while (fNextToBeSerialized < objects.count()) { 54 SkPDFObject* object = objects[fNextToBeSerialized].get(); 55 int32_t index = fNextToBeSerialized + 1; // Skip object 0. 56 // "The first entry in the [XREF] table (object number 0) is 57 // always free and has a generation number of 65,535; it is 58 // the head of the linked list of free objects." 59 SkASSERT(fOffsets.count() == fNextToBeSerialized); 60 fOffsets.push(this->offset(wStream)); 61 SkASSERT(object == fSubstituteMap.getSubstitute(object)); 62 wStream->writeDecAsText(index); 63 wStream->writeText(" 0 obj\n"); // Generation number is always 0. 64 object->emitObject(wStream, fObjNumMap, fSubstituteMap); 65 wStream->writeText("\nendobj\n"); 66 object->drop(); 67 ++fNextToBeSerialized; 68 } 69} 70 71// Xref table and footer 72void SkPDFObjectSerializer::serializeFooter(SkWStream* wStream, 73 const sk_sp<SkPDFObject> docCatalog, 74 sk_sp<SkPDFObject> id) { 75 this->serializeObjects(wStream); 76 int32_t xRefFileOffset = this->offset(wStream); 77 // Include the special zeroth object in the count. 78 int32_t objCount = SkToS32(fOffsets.count() + 1); 79 wStream->writeText("xref\n0 "); 80 wStream->writeDecAsText(objCount); 81 wStream->writeText("\n0000000000 65535 f \n"); 82 for (int i = 0; i < fOffsets.count(); i++) { 83 wStream->writeBigDecAsText(fOffsets[i], 10); 84 wStream->writeText(" 00000 n \n"); 85 } 86 SkPDFDict trailerDict; 87 trailerDict.insertInt("Size", objCount); 88 SkASSERT(docCatalog); 89 trailerDict.insertObjRef("Root", docCatalog); 90 SkASSERT(fInfoDict); 91 trailerDict.insertObjRef("Info", std::move(fInfoDict)); 92 if (id) { 93 trailerDict.insertObject("ID", std::move(id)); 94 } 95 wStream->writeText("trailer\n"); 96 trailerDict.emitObject(wStream, fObjNumMap, fSubstituteMap); 97 wStream->writeText("\nstartxref\n"); 98 wStream->writeBigDecAsText(xRefFileOffset); 99 wStream->writeText("\n%%EOF"); 100} 101 102int32_t SkPDFObjectSerializer::offset(SkWStream* wStream) { 103 size_t offset = wStream->bytesWritten(); 104 SkASSERT(offset > fBaseOffset); 105 return SkToS32(offset - fBaseOffset); 106} 107 108 109// return root node. 110static sk_sp<SkPDFDict> generate_page_tree(SkTArray<sk_sp<SkPDFDict>>* pages) { 111 // PDF wants a tree describing all the pages in the document. We arbitrary 112 // choose 8 (kNodeSize) as the number of allowed children. The internal 113 // nodes have type "Pages" with an array of children, a parent pointer, and 114 // the number of leaves below the node as "Count." The leaves are passed 115 // into the method, have type "Page" and need a parent pointer. This method 116 // builds the tree bottom up, skipping internal nodes that would have only 117 // one child. 118 static const int kNodeSize = 8; 119 120 // curNodes takes a reference to its items, which it passes to pageTree. 121 int totalPageCount = pages->count(); 122 SkTArray<sk_sp<SkPDFDict>> curNodes; 123 curNodes.swap(pages); 124 125 // nextRoundNodes passes its references to nodes on to curNodes. 126 int treeCapacity = kNodeSize; 127 do { 128 SkTArray<sk_sp<SkPDFDict>> nextRoundNodes; 129 for (int i = 0; i < curNodes.count(); ) { 130 if (i > 0 && i + 1 == curNodes.count()) { 131 SkASSERT(curNodes[i]); 132 nextRoundNodes.emplace_back(std::move(curNodes[i])); 133 break; 134 } 135 136 auto newNode = sk_make_sp<SkPDFDict>("Pages"); 137 auto kids = sk_make_sp<SkPDFArray>(); 138 kids->reserve(kNodeSize); 139 140 int count = 0; 141 for (; i < curNodes.count() && count < kNodeSize; i++, count++) { 142 SkASSERT(curNodes[i]); 143 curNodes[i]->insertObjRef("Parent", newNode); 144 kids->appendObjRef(std::move(curNodes[i])); 145 } 146 147 // treeCapacity is the number of leaf nodes possible for the 148 // current set of subtrees being generated. (i.e. 8, 64, 512, ...). 149 // It is hard to count the number of leaf nodes in the current 150 // subtree. However, by construction, we know that unless it's the 151 // last subtree for the current depth, the leaf count will be 152 // treeCapacity, otherwise it's what ever is left over after 153 // consuming treeCapacity chunks. 154 int pageCount = treeCapacity; 155 if (i == curNodes.count()) { 156 pageCount = ((totalPageCount - 1) % treeCapacity) + 1; 157 } 158 newNode->insertInt("Count", pageCount); 159 newNode->insertObject("Kids", std::move(kids)); 160 nextRoundNodes.emplace_back(std::move(newNode)); 161 } 162 SkDEBUGCODE( for (const auto& n : curNodes) { SkASSERT(!n); } ); 163 164 curNodes.swap(&nextRoundNodes); 165 nextRoundNodes.reset(); 166 treeCapacity *= kNodeSize; 167 } while (curNodes.count() > 1); 168 return std::move(curNodes[0]); 169} 170 171#if 0 172// TODO(halcanary): expose notEmbeddableCount in SkDocument 173void GetCountOfFontTypes( 174 const SkTDArray<SkPDFDevice*>& pageDevices, 175 int counts[SkAdvancedTypefaceMetrics::kOther_Font + 1], 176 int* notSubsettableCount, 177 int* notEmbeddableCount) { 178 sk_bzero(counts, sizeof(int) * 179 (SkAdvancedTypefaceMetrics::kOther_Font + 1)); 180 SkTDArray<SkFontID> seenFonts; 181 int notSubsettable = 0; 182 int notEmbeddable = 0; 183 184 for (int pageNumber = 0; pageNumber < pageDevices.count(); pageNumber++) { 185 const SkTDArray<SkPDFFont*>& fontResources = 186 pageDevices[pageNumber]->getFontResources(); 187 for (int font = 0; font < fontResources.count(); font++) { 188 SkFontID fontID = fontResources[font]->typeface()->uniqueID(); 189 if (seenFonts.find(fontID) == -1) { 190 counts[fontResources[font]->getType()]++; 191 seenFonts.push(fontID); 192 if (!fontResources[font]->canSubset()) { 193 notSubsettable++; 194 } 195 if (!fontResources[font]->canEmbed()) { 196 notEmbeddable++; 197 } 198 } 199 } 200 } 201 if (notSubsettableCount) { 202 *notSubsettableCount = notSubsettable; 203 204 } 205 if (notEmbeddableCount) { 206 *notEmbeddableCount = notEmbeddable; 207 } 208} 209#endif 210 211template <typename T> static T* clone(const T* o) { return o ? new T(*o) : nullptr; } 212//////////////////////////////////////////////////////////////////////////////// 213 214SkPDFDocument::SkPDFDocument(SkWStream* stream, 215 void (*doneProc)(SkWStream*, bool), 216 SkScalar rasterDpi, 217 const SkDocument::PDFMetadata& metadata, 218 sk_sp<SkPixelSerializer> jpegEncoder, 219 bool pdfa) 220 : SkDocument(stream, doneProc) 221 , fRasterDpi(rasterDpi) 222 , fMetadata(metadata) 223 , fPDFA(pdfa) { 224 fCanon.setPixelSerializer(std::move(jpegEncoder)); 225} 226 227SkPDFDocument::~SkPDFDocument() { 228 // subclasses of SkDocument must call close() in their destructors. 229 this->close(); 230} 231 232void SkPDFDocument::serialize(const sk_sp<SkPDFObject>& object) { 233 fObjectSerializer.addObjectRecursively(object); 234 fObjectSerializer.serializeObjects(this->getStream()); 235} 236 237SkCanvas* SkPDFDocument::onBeginPage(SkScalar width, SkScalar height, 238 const SkRect& trimBox) { 239 SkASSERT(!fCanvas.get()); // endPage() was called before this. 240 if (fPages.empty()) { 241 // if this is the first page if the document. 242 fObjectSerializer.serializeHeader(this->getStream(), fMetadata); 243 fDests = sk_make_sp<SkPDFDict>(); 244 if (fPDFA) { 245 SkPDFMetadata::UUID uuid = SkPDFMetadata::CreateUUID(fMetadata); 246 // We use the same UUID for Document ID and Instance ID since this 247 // is the first revision of this document (and Skia does not 248 // support revising existing PDF documents). 249 // If we are not in PDF/A mode, don't use a UUID since testing 250 // works best with reproducible outputs. 251 fID = SkPDFMetadata::MakePdfId(uuid, uuid); 252 fXMP = SkPDFMetadata::MakeXMPObject(fMetadata, uuid, uuid); 253 fObjectSerializer.addObjectRecursively(fXMP); 254 fObjectSerializer.serializeObjects(this->getStream()); 255 } 256 } 257 SkISize pageSize = SkISize::Make( 258 SkScalarRoundToInt(width), SkScalarRoundToInt(height)); 259 fPageDevice.reset( 260 SkPDFDevice::Create(pageSize, fRasterDpi, this)); 261 fCanvas = sk_make_sp<SkPDFCanvas>(fPageDevice); 262 fCanvas->clipRect(trimBox); 263 fCanvas->translate(trimBox.x(), trimBox.y()); 264 return fCanvas.get(); 265} 266 267void SkPDFDocument::onEndPage() { 268 SkASSERT(fCanvas.get()); 269 fCanvas->flush(); 270 fCanvas.reset(nullptr); 271 SkASSERT(fPageDevice); 272 auto page = sk_make_sp<SkPDFDict>("Page"); 273 page->insertObject("Resources", fPageDevice->makeResourceDict()); 274 page->insertObject("MediaBox", fPageDevice->copyMediaBox()); 275 auto annotations = sk_make_sp<SkPDFArray>(); 276 fPageDevice->appendAnnotations(annotations.get()); 277 if (annotations->size() > 0) { 278 page->insertObject("Annots", std::move(annotations)); 279 } 280 auto contentObject = sk_make_sp<SkPDFStream>(fPageDevice->content()); 281 this->serialize(contentObject); 282 page->insertObjRef("Contents", std::move(contentObject)); 283 fPageDevice->appendDestinations(fDests.get(), page.get()); 284 fPages.emplace_back(std::move(page)); 285 fPageDevice.reset(nullptr); 286} 287 288void SkPDFDocument::onAbort() { 289 fCanvas.reset(nullptr); 290 fPages.reset(); 291 fCanon.reset(); 292 renew(&fObjectSerializer); 293 renew(&fGlyphUsage); 294} 295 296#ifdef SK_SUPPORT_LEGACY_DOCUMENT_API 297void SkPDFDocument::setMetadata(const SkDocument::Attribute info[], 298 int infoCount, 299 const SkTime::DateTime* creationDate, 300 const SkTime::DateTime* modifiedDate) { 301 for (int i = 0; i < infoCount; ++i) { 302 const SkDocument::Attribute& kv = info[i]; 303 SkPDFMetadata::SetMetadataByKey(kv.fKey, kv.fValue, &fMetadata); 304 } 305 if (creationDate) { 306 fMetadata.fCreation.fEnabled = true; 307 fMetadata.fCreation.fDateTime = *creationDate; 308 } 309 if (modifiedDate) { 310 fMetadata.fModified.fEnabled = true; 311 fMetadata.fModified.fDateTime = *modifiedDate; 312 } 313} 314#endif // SK_SUPPORT_LEGACY_DOCUMENT_API 315 316static sk_sp<SkData> SkSrgbIcm() { 317 // Source: http://www.argyllcms.com/icclibsrc.html 318 static const char kProfile[] = 319 "\0\0\14\214argl\2 \0\0mntrRGB XYZ \7\336\0\1\0\6\0\26\0\17\0:acspM" 320 "SFT\0\0\0\0IEC sRGB\0\0\0\0\0\0\0\0\0\0\0\0\0\0\366\326\0\1\0\0\0\0" 321 "\323-argl\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" 322 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\21desc\0\0\1P\0\0\0\231cprt\0" 323 "\0\1\354\0\0\0gdmnd\0\0\2T\0\0\0pdmdd\0\0\2\304\0\0\0\210tech\0\0\3" 324 "L\0\0\0\14vued\0\0\3X\0\0\0gview\0\0\3\300\0\0\0$lumi\0\0\3\344\0\0" 325 "\0\24meas\0\0\3\370\0\0\0$wtpt\0\0\4\34\0\0\0\24bkpt\0\0\0040\0\0\0" 326 "\24rXYZ\0\0\4D\0\0\0\24gXYZ\0\0\4X\0\0\0\24bXYZ\0\0\4l\0\0\0\24rTR" 327 "C\0\0\4\200\0\0\10\14gTRC\0\0\4\200\0\0\10\14bTRC\0\0\4\200\0\0\10" 328 "\14desc\0\0\0\0\0\0\0?sRGB IEC61966-2.1 (Equivalent to www.srgb.co" 329 "m 1998 HP profile)\0\0\0\0\0\0\0\0\0\0\0?sRGB IEC61966-2.1 (Equiva" 330 "lent to www.srgb.com 1998 HP profile)\0\0\0\0\0\0\0\0text\0\0\0\0C" 331 "reated by Graeme W. 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No Warr" 332 "anty, Use at your own risk.\0\0desc\0\0\0\0\0\0\0\26IEC http://www" 333 ".iec.ch\0\0\0\0\0\0\0\0\0\0\0\26IEC http://www.iec.ch\0\0\0\0\0\0\0" 334 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" 335 "\0\0\0\0\0\0desc\0\0\0\0\0\0\0.IEC 61966-2.1 Default RGB colour sp" 336 "ace - sRGB\0\0\0\0\0\0\0\0\0\0\0.IEC 61966-2.1 Default RGB colour " 337 "space - sRGB\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0sig \0\0\0" 338 "\0CRT desc\0\0\0\0\0\0\0\rIEC61966-2.1\0\0\0\0\0\0\0\0\0\0\0\rIEC6" 339 "1966-2.1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" 340 "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0view\0\0\0\0" 341 "\0\23\244|\0\24_0\0\20\316\2\0\3\355\262\0\4\23\n\0\3\\g\0\0\0\1XY" 342 "Z \0\0\0\0\0L\n=\0P\0\0\0W\36\270meas\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0" 343 "\0\0\0\0\0\0\0\0\0\0\0\2\217\0\0\0\2XYZ \0\0\0\0\0\0\363Q\0\1\0\0\0" 344 "\1\26\314XYZ \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0XYZ \0\0\0\0\0\0o\240" 345 "\0\0008\365\0\0\3\220XYZ 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":\357;-;k;\252;\350<'<e<\244<\343=\"=a=\241=\340> >`>\240>\340?!?a" 386 "?\242?\342@#@d@\246@\347A)AjA\254A\356B0BrB\265B\367C:C}C\300D\3DG" 387 "D\212D\316E\22EUE\232E\336F\"FgF\253F\360G5G{G\300H\5HKH\221H\327I" 388 "\35IcI\251I\360J7J}J\304K\14KSK\232K\342L*LrL\272M\2MJM\223M\334N%" 389 "NnN\267O\0OIO\223O\335P'PqP\273Q\6QPQ\233Q\346R1R|R\307S\23S_S\252" 390 "S\366TBT\217T\333U(UuU\302V\17V\\V\251V\367WDW\222W\340X/X}X\313Y\32" 391 "YiY\270Z\7ZVZ\246Z\365[E[\225[\345\\5\\\206\\\326]']x]\311^\32^l^\275" 392 "_\17_a_\263`\5`W`\252`\374aOa\242a\365bIb\234b\360cCc\227c\353d@d\224" 393 "d\351e=e\222e\347f=f\222f\350g=g\223g\351h?h\226h\354iCi\232i\361j" 394 "Hj\237j\367kOk\247k\377lWl\257m\10m`m\271n\22nkn\304o\36oxo\321p+p" 395 "\206p\340q:q\225q\360rKr\246s\1s]s\270t\24tpt\314u(u\205u\341v>v\233" 396 "v\370wVw\263x\21xnx\314y*y\211y\347zFz\245{\4{c{\302|!|\201|\341}A" 397 "}\241~\1~b~\302\177#\177\204\177\345\200G\200\250\201\n\201k\201\315" 398 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"\302\272;\272\265\273.\273\247\274!\274\233\275\25\275\217\276\n\276" 412 "\204\276\377\277z\277\365\300p\300\354\301g\301\343\302_\302\333\303" 413 "X\303\324\304Q\304\316\305K\305\310\306F\306\303\307A\307\277\310=" 414 "\310\274\311:\311\271\3128\312\267\3136\313\266\3145\314\265\3155\315" 415 "\265\3166\316\266\3177\317\270\3209\320\272\321<\321\276\322?\322\301" 416 "\323D\323\306\324I\324\313\325N\325\321\326U\326\330\327\\\327\340" 417 "\330d\330\350\331l\331\361\332v\332\373\333\200\334\5\334\212\335\20" 418 "\335\226\336\34\336\242\337)\337\257\3406\340\275\341D\341\314\342" 419 "S\342\333\343c\343\353\344s\344\374\345\204\346\r\346\226\347\37\347" 420 "\251\3502\350\274\351F\351\320\352[\352\345\353p\353\373\354\206\355" 421 "\21\355\234\356(\356\264\357@\357\314\360X\360\345\361r\361\377\362" 422 "\214\363\31\363\247\3644\364\302\365P\365\336\366m\366\373\367\212" 423 "\370\31\370\250\3718\371\307\372W\372\347\373w\374\7\374\230\375)\375" 424 "\272\376K\376\334\377m\377\377"; 425 const size_t kProfileLength = 3212; 426 static_assert(kProfileLength == sizeof(kProfile) - 1, ""); 427 return SkData::MakeWithoutCopy(kProfile, kProfileLength); 428} 429 430static sk_sp<SkPDFStream> make_srgb_color_profile() { 431 sk_sp<SkPDFStream> stream = sk_make_sp<SkPDFStream>(SkSrgbIcm()); 432 stream->dict()->insertInt("N", 3); 433 sk_sp<SkPDFArray> array = sk_make_sp<SkPDFArray>(); 434 array->appendScalar(0.0f); 435 array->appendScalar(1.0f); 436 array->appendScalar(0.0f); 437 array->appendScalar(1.0f); 438 array->appendScalar(0.0f); 439 array->appendScalar(1.0f); 440 stream->dict()->insertObject("Range", std::move(array)); 441 return stream; 442} 443 444static sk_sp<SkPDFArray> make_srgb_output_intents() { 445 // sRGB is specified by HTML, CSS, and SVG. 446 auto outputIntent = sk_make_sp<SkPDFDict>("OutputIntent"); 447 outputIntent->insertName("S", "GTS_PDFA1"); 448 outputIntent->insertString("RegistryName", "http://www.color.org"); 449 outputIntent->insertString("OutputConditionIdentifier", 450 "Custom"); 451 outputIntent->insertString("Info","sRGB IEC61966-2.1"); 452 outputIntent->insertObjRef("DestOutputProfile", 453 make_srgb_color_profile()); 454 auto intentArray = sk_make_sp<SkPDFArray>(); 455 intentArray->appendObject(std::move(outputIntent)); 456 return intentArray; 457} 458 459bool SkPDFDocument::onClose(SkWStream* stream) { 460 SkASSERT(!fCanvas.get()); 461 if (fPages.empty()) { 462 fPages.reset(); 463 fCanon.reset(); 464 renew(&fObjectSerializer); 465 renew(&fGlyphUsage); 466 return false; 467 } 468 auto docCatalog = sk_make_sp<SkPDFDict>("Catalog"); 469 if (fPDFA) { 470 SkASSERT(fXMP); 471 docCatalog->insertObjRef("Metadata", fXMP); 472 // Don't specify OutputIntents if we are not in PDF/A mode since 473 // no one has ever asked for this feature. 474 docCatalog->insertObject("OutputIntents", make_srgb_output_intents()); 475 } 476 SkASSERT(!fPages.empty()); 477 docCatalog->insertObjRef("Pages", generate_page_tree(&fPages)); 478 SkASSERT(fPages.empty()); 479 480 if (fDests->size() > 0) { 481 docCatalog->insertObjRef("Dests", std::move(fDests)); 482 } 483 484 // Build font subsetting info before calling addObjectRecursively(). 485 for (const auto& entry : fGlyphUsage) { 486 sk_sp<SkPDFFont> subsetFont( 487 entry.fFont->getFontSubset(&entry.fGlyphSet)); 488 if (subsetFont) { 489 fObjectSerializer.fSubstituteMap.setSubstitute( 490 entry.fFont, subsetFont.get()); 491 } 492 } 493 494 fObjectSerializer.addObjectRecursively(docCatalog); 495 fObjectSerializer.serializeObjects(this->getStream()); 496 fObjectSerializer.serializeFooter(this->getStream(), docCatalog, fID); 497 fCanon.reset(); 498 renew(&fObjectSerializer); 499 renew(&fGlyphUsage); 500 return true; 501} 502 503/////////////////////////////////////////////////////////////////////////////// 504 505sk_sp<SkDocument> SkPDFMakeDocument(SkWStream* stream, 506 void (*proc)(SkWStream*, bool), 507 SkScalar dpi, 508 const SkDocument::PDFMetadata& metadata, 509 sk_sp<SkPixelSerializer> jpeg, 510 bool pdfa) { 511 return stream ? sk_make_sp<SkPDFDocument>(stream, proc, dpi, metadata, 512 std::move(jpeg), pdfa) 513 : nullptr; 514} 515 516sk_sp<SkDocument> SkDocument::MakePDF(const char path[], SkScalar dpi) { 517 auto delete_wstream = [](SkWStream* stream, bool) { delete stream; }; 518 std::unique_ptr<SkFILEWStream> stream(new SkFILEWStream(path)); 519 return stream->isValid() 520 ? SkPDFMakeDocument(stream.release(), delete_wstream, dpi, 521 SkDocument::PDFMetadata(), nullptr, 522 false) 523 : nullptr; 524} 525 526sk_sp<SkDocument> SkDocument::MakePDF(SkWStream* stream, 527 SkScalar dpi, 528 const SkDocument::PDFMetadata& metadata, 529 sk_sp<SkPixelSerializer> jpegEncoder, 530 bool pdfa) { 531 return SkPDFMakeDocument(stream, nullptr, dpi, metadata, 532 std::move(jpegEncoder), pdfa); 533} 534