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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkMatrix.h"
#include "SkPictureData.h"
#include "SkPicturePlayback.h"
#include "SkPictureRecord.h"
#include "SkPictureRecorder.h"
#include "SkRecordedDrawable.h"
#include "SkRecordDraw.h"
void SkRecordedDrawable::onDraw(SkCanvas* canvas) {
SkDrawable* const* drawables = nullptr;
int drawableCount = 0;
if (fDrawableList) {
drawables = fDrawableList->begin();
drawableCount = fDrawableList->count();
}
SkRecordDraw(*fRecord, canvas, nullptr, drawables, drawableCount, fBBH.get(), nullptr);
}
SkPicture* SkRecordedDrawable::onNewPictureSnapshot() {
SkBigPicture::SnapshotArray* pictList = nullptr;
if (fDrawableList) {
// TODO: should we plumb-down the BBHFactory and recordFlags from our host
// PictureRecorder?
pictList = fDrawableList->newDrawableSnapshot();
}
size_t subPictureBytes = 0;
for (int i = 0; pictList && i < pictList->count(); i++) {
subPictureBytes += pictList->begin()[i]->approximateBytesUsed();
}
// SkBigPicture will take ownership of a ref on both fRecord and fBBH.
// We're not willing to give up our ownership, so we must ref them for SkPicture.
return new SkBigPicture(fBounds, SkRef(fRecord.get()), pictList, SkSafeRef(fBBH.get()),
subPictureBytes);
}
void SkRecordedDrawable::flatten(SkWriteBuffer& buffer) const {
// Write the bounds.
buffer.writeRect(fBounds);
// Create an SkPictureRecord to record the draw commands.
SkPictInfo info;
SkPictureRecord pictureRecord(SkISize::Make(fBounds.width(), fBounds.height()), 0);
// If the query contains the whole picture, don't bother with the bounding box hierarchy.
SkBBoxHierarchy* bbh;
if (pictureRecord.getLocalClipBounds().contains(fBounds)) {
bbh = nullptr;
} else {
bbh = fBBH.get();
}
// Record the draw commands.
pictureRecord.beginRecording();
SkRecordDraw(*fRecord, &pictureRecord, nullptr, fDrawableList->begin(), fDrawableList->count(),
bbh, nullptr);
pictureRecord.endRecording();
// Flatten the recorded commands and drawables.
SkPictureData pictureData(pictureRecord, info);
pictureData.flatten(buffer);
}
sk_sp<SkFlattenable> SkRecordedDrawable::CreateProc(SkReadBuffer& buffer) {
// Read the bounds.
SkRect bounds;
buffer.readRect(&bounds);
// Unflatten into a SkPictureData.
SkPictInfo info;
info.setVersion(buffer.getVersion());
info.fCullRect = bounds;
std::unique_ptr<SkPictureData> pictureData(SkPictureData::CreateFromBuffer(buffer, info));
if (!pictureData) {
return nullptr;
}
// Create a drawable.
SkPicturePlayback playback(pictureData.get());
SkPictureRecorder recorder;
playback.draw(recorder.beginRecording(bounds), nullptr, &buffer);
return recorder.finishRecordingAsDrawable();
}
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