submodule/skia/src/utils/SkMultiPictureDocument.h

   1 /*
   2  * Copyright 2016 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 #ifndef SkMultiPictureDocument_DEFINED
   9 #define SkMultiPictureDocument_DEFINED
  10
  11 #include "include/core/SkPicture.h"
  12 #include "include/core/SkRefCnt.h"
  13 #include "include/core/SkSize.h"
  14 #include "include/core/SkTypes.h"
  15
  16 #include <functional>
  17
  18 class SkDocument;
  19 class SkStreamSeekable;
  20 class SkWStream;
  21 struct SkDeserialProcs;
  22 struct SkSerialProcs;
  23
  24 /**
  25  *  Writes into a file format that is similar to SkPicture::serialize()
  26  *  Accepts a callback for endPage behavior
  27  */
  28 SK_SPI sk_sp<SkDocument> SkMakeMultiPictureDocument(SkWStream* dst, const SkSerialProcs* = nullptr,
  29   std::function<void(const SkPicture*)> onEndPage = nullptr);
  30
  31 struct SkDocumentPage {
  32     sk_sp<SkPicture> fPicture;
  33     SkSize fSize;
  34 };
  35
  36 /**
  37  *  Returns the number of pages in the SkMultiPictureDocument.
  38  */
  39 SK_SPI int SkMultiPictureDocumentReadPageCount(SkStreamSeekable* src);
  40
  41 /**
  42  *  Read the SkMultiPictureDocument into the provided array of pages.
  43  *  dstArrayCount must equal SkMultiPictureDocumentReadPageCount().
  44  *  Return false on error.
  45  */
  46 SK_SPI bool SkMultiPictureDocumentRead(SkStreamSeekable* src,
  47                                        SkDocumentPage* dstArray,
  48                                        int dstArrayCount,
  49                                        const SkDeserialProcs* = nullptr);
  50
  51 #endif  // SkMultiPictureDocument_DEFINED