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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBBoxHierarchy.h"
#include "SkBigPicture.h"
#include "SkPictureCommon.h"
#include "SkRecord.h"
#include "SkRecordDraw.h"
#include "SkTraceEvent.h"
SkBigPicture::SkBigPicture(const SkRect& cull,
SkRecord* record,
SnapshotArray* drawablePicts,
SkBBoxHierarchy* bbh,
size_t approxBytesUsedBySubPictures)
: fCullRect(cull)
, fApproxBytesUsedBySubPictures(approxBytesUsedBySubPictures)
, fRecord(record) // Take ownership of caller's ref.
, fDrawablePicts(drawablePicts) // Take ownership.
, fBBH(bbh) // Take ownership of caller's ref.
{}
void SkBigPicture::playback(SkCanvas* canvas, AbortCallback* callback) const {
SkASSERT(canvas);
// If the query contains the whole picture, don't bother with the BBH.
SkRect clipBounds = { 0, 0, 0, 0 };
(void)canvas->getClipBounds(&clipBounds);
const bool useBBH = !clipBounds.contains(this->cullRect());
SkRecordDraw(*fRecord,
canvas,
this->drawablePicts(),
nullptr,
this->drawableCount(),
useBBH ? fBBH.get() : nullptr,
callback);
}
void SkBigPicture::partialPlayback(SkCanvas* canvas,
int start,
int stop,
const SkMatrix& initialCTM) const {
SkASSERT(canvas);
SkRecordPartialDraw(*fRecord,
canvas,
this->drawablePicts(),
this->drawableCount(),
start,
stop,
initialCTM);
}
const SkBigPicture::Analysis& SkBigPicture::analysis() const {
fAnalysisOnce([this] { fAnalysis.init(*fRecord); });
return fAnalysis;
}
SkRect SkBigPicture::cullRect() const { return fCullRect; }
bool SkBigPicture::willPlayBackBitmaps() const { return this->analysis().fWillPlaybackBitmaps; }
int SkBigPicture::numSlowPaths() const { return this->analysis().fNumSlowPathsAndDashEffects; }
int SkBigPicture::approximateOpCount() const { return fRecord->count(); }
size_t SkBigPicture::approximateBytesUsed() const {
size_t bytes = sizeof(*this) + fRecord->bytesUsed() + fApproxBytesUsedBySubPictures;
if (fBBH) { bytes += fBBH->bytesUsed(); }
return bytes;
}
int SkBigPicture::drawableCount() const {
return fDrawablePicts ? fDrawablePicts->count() : 0;
}
SkPicture const* const* SkBigPicture::drawablePicts() const {
return fDrawablePicts ? fDrawablePicts->begin() : nullptr;
}
void SkBigPicture::Analysis::init(const SkRecord& record) {
TRACE_EVENT0("disabled-by-default-skia", "SkBigPicture::Analysis::init()");
SkBitmapHunter bitmap;
SkPathCounter path;
bool hasBitmap = false;
for (int i = 0; i < record.count(); i++) {
hasBitmap = hasBitmap || record.visit(i, bitmap);
record.visit(i, path);
}
fWillPlaybackBitmaps = hasBitmap;
fNumSlowPathsAndDashEffects = SkTMin<int>(path.fNumSlowPathsAndDashEffects, 255);
}
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