Home | History | Annotate | Download | only in core 
      1 /*
      2  * Copyright 2015 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 "SkBBoxHierarchy.h"
      9 #include "SkBigPicture.h"
     10 #include "SkPictureCommon.h"
     11 #include "SkRecord.h"
     12 #include "SkRecordDraw.h"
     13 #include "SkTraceEvent.h"
     14 
     15 SkBigPicture::SkBigPicture(const SkRect& cull,
     16                            SkRecord* record,
     17                            SnapshotArray* drawablePicts,
     18                            SkBBoxHierarchy* bbh,
     19                            size_t approxBytesUsedBySubPictures)
     20     : fCullRect(cull)
     21     , fApproxBytesUsedBySubPictures(approxBytesUsedBySubPictures)
     22     , fRecord(record)               // Take ownership of caller's ref.
     23     , fDrawablePicts(drawablePicts) // Take ownership.
     24     , fBBH(bbh)                     // Take ownership of caller's ref.
     25 {}
     26 
     27 void SkBigPicture::playback(SkCanvas* canvas, AbortCallback* callback) const {
     28     SkASSERT(canvas);
     29 
     30     // If the query contains the whole picture, don't bother with the BBH.
     31     const bool useBBH = !canvas->getLocalClipBounds().contains(this->cullRect());
     32 
     33     SkRecordDraw(*fRecord,
     34                  canvas,
     35                  this->drawablePicts(),
     36                  nullptr,
     37                  this->drawableCount(),
     38                  useBBH ? fBBH.get() : nullptr,
     39                  callback);
     40 }
     41 
     42 void SkBigPicture::partialPlayback(SkCanvas* canvas,
     43                                    int start,
     44                                    int stop,
     45                                    const SkMatrix& initialCTM) const {
     46     SkASSERT(canvas);
     47     SkRecordPartialDraw(*fRecord,
     48                         canvas,
     49                         this->drawablePicts(),
     50                         this->drawableCount(),
     51                         start,
     52                         stop,
     53                         initialCTM);
     54 }
     55 
     56 SkRect SkBigPicture::cullRect()            const { return fCullRect; }
     57 int    SkBigPicture::approximateOpCount()   const { return fRecord->count(); }
     58 size_t SkBigPicture::approximateBytesUsed() const {
     59     size_t bytes = sizeof(*this) + fRecord->bytesUsed() + fApproxBytesUsedBySubPictures;
     60     if (fBBH) { bytes += fBBH->bytesUsed(); }
     61     return bytes;
     62 }
     63 
     64 int SkBigPicture::drawableCount() const {
     65     return fDrawablePicts ? fDrawablePicts->count() : 0;
     66 }
     67 
     68 SkPicture const* const* SkBigPicture::drawablePicts() const {
     69     return fDrawablePicts ? fDrawablePicts->begin() : nullptr;
     70 }
     71 
     72