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120 lines
3.1 KiB
120 lines
3.1 KiB
7 months ago
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/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "Picture.h"
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#include "SkStream.h"
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#include <memory>
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#include <hwui/Canvas.h>
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namespace android {
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Picture::Picture(const Picture* src) {
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if (NULL != src) {
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mWidth = src->width();
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mHeight = src->height();
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if (NULL != src->mPicture.get()) {
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mPicture = src->mPicture;
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} else if (NULL != src->mRecorder.get()) {
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mPicture = src->makePartialCopy();
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}
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} else {
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mWidth = 0;
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mHeight = 0;
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}
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}
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Picture::Picture(sk_sp<SkPicture>&& src) {
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mPicture = std::move(src);
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mWidth = 0;
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mHeight = 0;
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}
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Canvas* Picture::beginRecording(int width, int height) {
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mPicture.reset(NULL);
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mRecorder.reset(new SkPictureRecorder);
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mWidth = width;
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mHeight = height;
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SkCanvas* canvas = mRecorder->beginRecording(SkIntToScalar(width), SkIntToScalar(height));
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return Canvas::create_canvas(canvas);
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}
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void Picture::endRecording() {
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if (NULL != mRecorder.get()) {
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mPicture = mRecorder->finishRecordingAsPicture();
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mRecorder.reset(NULL);
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}
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}
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int Picture::width() const {
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return mWidth;
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}
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int Picture::height() const {
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return mHeight;
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}
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Picture* Picture::CreateFromStream(SkStream* stream) {
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Picture* newPict = new Picture;
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sk_sp<SkPicture> skPicture = SkPicture::MakeFromStream(stream);
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if (NULL != skPicture) {
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newPict->mPicture = skPicture;
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const SkIRect cullRect = skPicture->cullRect().roundOut();
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newPict->mWidth = cullRect.width();
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newPict->mHeight = cullRect.height();
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}
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return newPict;
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}
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void Picture::serialize(SkWStream* stream) const {
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if (NULL != mRecorder.get()) {
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this->makePartialCopy()->serialize(stream);
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} else if (NULL != mPicture.get()) {
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mPicture->serialize(stream);
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} else {
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// serialize "empty" picture
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SkPictureRecorder recorder;
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recorder.beginRecording(0, 0);
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recorder.finishRecordingAsPicture()->serialize(stream);
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}
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}
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void Picture::draw(Canvas* canvas) {
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if (NULL != mRecorder.get()) {
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this->endRecording();
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SkASSERT(NULL != mPicture.get());
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}
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if (mPicture) {
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canvas->drawPicture(*mPicture);
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}
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}
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sk_sp<SkPicture> Picture::makePartialCopy() const {
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SkASSERT(NULL != mRecorder.get());
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SkPictureRecorder reRecorder;
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SkCanvas* canvas = reRecorder.beginRecording(mWidth, mHeight);
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mRecorder->partialReplay(canvas);
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return reRecorder.finishRecordingAsPicture();
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}
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}; // namespace android
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