62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/*
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* Copyright (C) 2015 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 "TestSceneBase.h"
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class ReadbackFromHardware;
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static TestScene::Registrar _SaveLayer(TestScene::Info{
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"readbackFromHBitmap", "Allocates hardware bitmap and readback data from it.",
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TestScene::simpleCreateScene<ReadbackFromHardware>});
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class ReadbackFromHardware : public TestScene {
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public:
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static sk_sp<Bitmap> createHardwareBitmap() {
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SkBitmap skBitmap;
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SkImageInfo info = SkImageInfo::Make(400, 400, kN32_SkColorType, kPremul_SkAlphaType);
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skBitmap.allocPixels(info);
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skBitmap.eraseColor(Color::Red_500);
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SkCanvas canvas(skBitmap);
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SkPaint paint;
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paint.setColor(Color::Blue_500);
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canvas.drawRect(SkRect::MakeXYWH(30, 30, 30, 150), paint);
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canvas.drawRect(SkRect::MakeXYWH(30, 30, 100, 30), paint);
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canvas.drawRect(SkRect::MakeXYWH(30, 100, 70, 30), paint);
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return Bitmap::allocateHardwareBitmap(skBitmap);
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}
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void createContent(int width, int height, Canvas& canvas) override {
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canvas.drawColor(Color::White, SkBlendMode::kSrcOver); // background
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sk_sp<Bitmap> hardwareBitmap(createHardwareBitmap());
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SkBitmap readback;
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hardwareBitmap->getSkBitmap(&readback);
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SkBitmap canvasBitmap;
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sk_sp<Bitmap> heapBitmap(TestUtils::createBitmap(hardwareBitmap->width(),
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hardwareBitmap->height(), &canvasBitmap));
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SkCanvas skCanvas(canvasBitmap);
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skCanvas.drawImage(readback.asImage(), 0, 0);
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canvas.drawBitmap(*heapBitmap, 0, 0, nullptr);
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canvas.drawBitmap(*hardwareBitmap, 0, 500, nullptr);
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}
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void doFrame(int frameNr) override {}
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};
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