/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "TestSceneBase.h"
class ReadbackFromHardware;
static TestScene::Registrar _SaveLayer(TestScene::Info{
"readbackFromHBitmap", "Allocates hardware bitmap and readback data from it.",
TestScene::simpleCreateScene<ReadbackFromHardware>});
class ReadbackFromHardware : public TestScene {
public:
static sk_sp<Bitmap> createHardwareBitmap() {
SkBitmap skBitmap;
SkImageInfo info = SkImageInfo::Make(400, 400, kN32_SkColorType, kPremul_SkAlphaType);
skBitmap.allocPixels(info);
skBitmap.eraseColor(Color::Red_500);
SkCanvas canvas(skBitmap);
SkPaint paint;
paint.setColor(Color::Blue_500);
canvas.drawRect(SkRect::MakeXYWH(30, 30, 30, 150), paint);
canvas.drawRect(SkRect::MakeXYWH(30, 30, 100, 30), paint);
canvas.drawRect(SkRect::MakeXYWH(30, 100, 70, 30), paint);
return Bitmap::allocateHardwareBitmap(skBitmap);
}
void createContent(int width, int height, Canvas& canvas) override {
canvas.drawColor(Color::White, SkBlendMode::kSrcOver); // background
sk_sp<Bitmap> hardwareBitmap(createHardwareBitmap());
SkBitmap readback;
hardwareBitmap->getSkBitmap(&readback);
SkBitmap canvasBitmap;
sk_sp<Bitmap> heapBitmap(TestUtils::createBitmap(hardwareBitmap->width(),
hardwareBitmap->height(), &canvasBitmap));
SkCanvas skCanvas(canvasBitmap);
skCanvas.drawBitmap(readback, 0, 0);
canvas.drawBitmap(*heapBitmap, 0, 0, nullptr);
canvas.drawBitmap(*hardwareBitmap, 0, 500, nullptr);
}
void doFrame(int frameNr) override {}
};