sergeyv | 9c97e48 | 2016-12-12 16:14:11 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "TestSceneBase.h" |
| 18 | #include "utils/Color.h" |
| 19 | |
| 20 | #include <gui/IGraphicBufferAlloc.h> |
| 21 | #include <gui/ISurfaceComposer.h> |
| 22 | #include <private/gui/ComposerService.h> |
| 23 | #include <binder/IServiceManager.h> |
| 24 | #include <ui/PixelFormat.h> |
| 25 | #include <SkGradientShader.h> |
| 26 | #include <SkImagePriv.h> |
| 27 | |
| 28 | class HwBitmapInCompositeShader; |
| 29 | |
| 30 | static TestScene::Registrar _HwBitmapInCompositeShader(TestScene::Info{ |
| 31 | "hwbitmapcompositeshader", |
| 32 | "Draws composite shader with hardware bitmap", |
| 33 | TestScene::simpleCreateScene<HwBitmapInCompositeShader> |
| 34 | }); |
| 35 | |
| 36 | class HwBitmapInCompositeShader : public TestScene { |
| 37 | public: |
| 38 | sp<RenderNode> card; |
| 39 | void createContent(int width, int height, Canvas& canvas) override { |
| 40 | canvas.drawColor(Color::Red_500, SkBlendMode::kSrcOver); |
| 41 | |
| 42 | status_t error; |
| 43 | sp<ISurfaceComposer> composer(ComposerService::getComposerService()); |
| 44 | sp<IGraphicBufferAlloc> alloc(composer->createGraphicBufferAlloc()); |
| 45 | uint32_t usage = GraphicBuffer::USAGE_HW_TEXTURE |
| 46 | | GraphicBuffer::USAGE_SW_READ_NEVER |
| 47 | | GRALLOC_USAGE_SW_WRITE_RARELY; |
| 48 | sp<GraphicBuffer> buffer = alloc->createGraphicBuffer(400, 200, PIXEL_FORMAT_RGBA_8888, 1, |
| 49 | usage, &error); |
| 50 | |
| 51 | unsigned char* pixels = nullptr; |
| 52 | buffer->lock(GraphicBuffer::USAGE_SW_WRITE_RARELY, ((void**)&pixels)); |
| 53 | size_t size = bytesPerPixel(buffer->getPixelFormat()) * buffer->getStride() |
| 54 | * buffer->getHeight(); |
| 55 | memset(pixels, 0, size); |
| 56 | for (int i = 0; i < 6000; i++) { |
| 57 | pixels[4000 + 4 * i + 0] = 255; |
| 58 | pixels[4000 + 4 * i + 1] = 255; |
| 59 | pixels[4000 + 4 * i + 2] = 0; |
| 60 | pixels[4000 + 4 * i + 3] = 255; |
| 61 | } |
| 62 | buffer->unlock(); |
| 63 | sk_sp<Bitmap> hardwareBitmap(Bitmap::createFrom(buffer)); |
| 64 | sk_sp<SkShader> hardwareShader(createBitmapShader(*hardwareBitmap)); |
| 65 | |
| 66 | SkPoint center; |
| 67 | center.set(50, 50); |
| 68 | SkColor colors[2]; |
| 69 | colors[0] = Color::Black; |
| 70 | colors[1] = Color::White; |
| 71 | sk_sp<SkShader> gradientShader = SkGradientShader::MakeRadial(center, 50, colors, nullptr, |
| 72 | 2, SkShader::TileMode::kRepeat_TileMode); |
| 73 | |
| 74 | sk_sp<SkShader> compositeShader( |
| 75 | SkShader::MakeComposeShader(hardwareShader, gradientShader, SkBlendMode::kDstATop)); |
| 76 | |
| 77 | SkPaint paint; |
| 78 | paint.setShader(std::move(compositeShader)); |
| 79 | canvas.drawRoundRect(0, 0, 400, 200, 10.0f, 10.0f, paint); |
| 80 | } |
| 81 | |
| 82 | void doFrame(int frameNr) override { } |
| 83 | |
| 84 | sk_sp<SkShader> createBitmapShader(Bitmap& bitmap) { |
| 85 | SkBitmap skBitmap; |
| 86 | bitmap.getSkBitmapForShaders(&skBitmap); |
| 87 | sk_sp<SkImage> image = SkMakeImageFromRasterBitmap(skBitmap, kNever_SkCopyPixelsMode); |
| 88 | return image->makeShader(SkShader::TileMode::kClamp_TileMode, |
| 89 | SkShader::TileMode::kClamp_TileMode); |
| 90 | } |
| 91 | }; |