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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 "include/core/SkMatrix.h"
- #include "include/core/SkPictureRecorder.h"
- #include "src/core/SkPictureData.h"
- #include "src/core/SkPicturePlayback.h"
- #include "src/core/SkPictureRecord.h"
- #include "src/core/SkRecordDraw.h"
- #include "src/core/SkRecordedDrawable.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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