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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBigPicture.h"
#include "SkData.h"
#include "SkDrawable.h"
#include "SkMiniRecorder.h"
#include "SkPictureRecorder.h"
#include "SkRecord.h"
#include "SkRecordDraw.h"
#include "SkRecordOpts.h"
#include "SkRecordedDrawable.h"
#include "SkRecorder.h"
#include "SkTypes.h"
SkPictureRecorder::SkPictureRecorder() {
fActivelyRecording = false;
fMiniRecorder.reset(new SkMiniRecorder);
fRecorder.reset(new SkRecorder(nullptr, SkRect::MakeEmpty(), fMiniRecorder.get()));
}
SkPictureRecorder::~SkPictureRecorder() {}
SkCanvas* SkPictureRecorder::beginRecording(const SkRect& userCullRect,
SkBBHFactory* bbhFactory /* = nullptr */,
uint32_t recordFlags /* = 0 */) {
const SkRect cullRect = userCullRect.isEmpty() ? SkRect::MakeEmpty() : userCullRect;
fCullRect = cullRect;
fFlags = recordFlags;
if (bbhFactory) {
fBBH.reset((*bbhFactory)(cullRect));
SkASSERT(fBBH.get());
}
if (!fRecord) {
fRecord.reset(new SkRecord);
}
SkRecorder::DrawPictureMode dpm = (recordFlags & kPlaybackDrawPicture_RecordFlag)
? SkRecorder::Playback_DrawPictureMode
: SkRecorder::Record_DrawPictureMode;
fRecorder->reset(fRecord.get(), cullRect, dpm, fMiniRecorder.get());
fActivelyRecording = true;
return this->getRecordingCanvas();
}
SkCanvas* SkPictureRecorder::getRecordingCanvas() {
return fActivelyRecording ? fRecorder.get() : nullptr;
}
sk_sp<SkPicture> SkPictureRecorder::finishRecordingAsPicture(uint32_t finishFlags) {
fActivelyRecording = false;
fRecorder->restoreToCount(1); // If we were missing any restores, add them now.
if (fRecord->count() == 0) {
auto pic = fMiniRecorder->detachAsPicture(fBBH ? nullptr : &fCullRect);
fBBH.reset(nullptr);
return pic;
}
// TODO: delay as much of this work until just before first playback?
SkRecordOptimize(fRecord.get());
SkDrawableList* drawableList = fRecorder->getDrawableList();
SkBigPicture::SnapshotArray* pictList =
drawableList ? drawableList->newDrawableSnapshot() : nullptr;
if (fBBH.get()) {
SkAutoTMalloc<SkRect> bounds(fRecord->count());
SkRecordFillBounds(fCullRect, *fRecord, bounds);
fBBH->insert(bounds, fRecord->count());
// Now that we've calculated content bounds, we can update fCullRect, often trimming it.
// TODO: get updated fCullRect from bounds instead of forcing the BBH to return it?
SkRect bbhBound = fBBH->getRootBound();
SkASSERT((bbhBound.isEmpty() || fCullRect.contains(bbhBound))
|| (bbhBound.isEmpty() && fCullRect.isEmpty()));
fCullRect = bbhBound;
}
size_t subPictureBytes = fRecorder->approxBytesUsedBySubPictures();
for (int i = 0; pictList && i < pictList->count(); i++) {
subPictureBytes += pictList->begin()[i]->approximateBytesUsed();
}
return sk_make_sp<SkBigPicture>(fCullRect, fRecord.release(), pictList, fBBH.release(),
subPictureBytes);
}
sk_sp<SkPicture> SkPictureRecorder::finishRecordingAsPictureWithCull(const SkRect& cullRect,
uint32_t finishFlags) {
fCullRect = cullRect;
return this->finishRecordingAsPicture(finishFlags);
}
void SkPictureRecorder::partialReplay(SkCanvas* canvas) const {
if (nullptr == canvas) {
return;
}
int drawableCount = 0;
SkDrawable* const* drawables = nullptr;
SkDrawableList* drawableList = fRecorder->getDrawableList();
if (drawableList) {
drawableCount = drawableList->count();
drawables = drawableList->begin();
}
SkRecordDraw(*fRecord, canvas, nullptr, drawables, drawableCount, nullptr/*bbh*/, nullptr/*callback*/);
}
sk_sp<SkDrawable> SkPictureRecorder::finishRecordingAsDrawable(uint32_t finishFlags) {
fActivelyRecording = false;
fRecorder->flushMiniRecorder();
fRecorder->restoreToCount(1); // If we were missing any restores, add them now.
SkRecordOptimize(fRecord.get());
if (fBBH.get()) {
SkAutoTMalloc<SkRect> bounds(fRecord->count());
SkRecordFillBounds(fCullRect, *fRecord, bounds);
fBBH->insert(bounds, fRecord->count());
}
sk_sp<SkDrawable> drawable =
sk_make_sp<SkRecordedDrawable>(std::move(fRecord), std::move(fBBH),
fRecorder->detachDrawableList(), fCullRect);
return drawable;
}
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