skia2/docs/examples/Picture_MakeFromStream.cpp

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// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "fiddle/examples.h"
// HASH=404fb42560a289c2004cad1caf3b96de
REG_FIDDLE(Picture_MakeFromStream, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkPictureRecorder recorder;
SkCanvas* pictureCanvas = recorder.beginRecording({0, 0, 256, 256});
SkPaint paint;
pictureCanvas->drawRect(SkRect::MakeWH(200, 200), paint);
paint.setColor(SK_ColorWHITE);
pictureCanvas->drawRect(SkRect::MakeLTRB(20, 20, 180, 180), paint);
sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
SkDynamicMemoryWStream writableStream;
picture->serialize(&writableStream);
std::unique_ptr<SkStreamAsset> readableStream = writableStream.detachAsStream();
sk_sp<SkPicture> copy = SkPicture::MakeFromStream(readableStream.get());
copy->playback(canvas);
}
} // END FIDDLE