Brian Salomon | 7eae3e0 | 2018-08-07 14:02:38 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "Benchmark.h" |
| 9 | |
| 10 | #include "SkCanvas.h" |
| 11 | #include "SkImage.h" |
| 12 | #include "SkRandom.h" |
| 13 | #include "SkSurface.h" |
| 14 | |
| 15 | /** |
| 16 | * Simulates drawing layers images in a grid a la a tile based compositor. The layers are all |
| 17 | * untransformed. |
| 18 | */ |
| 19 | class CompositingImages : public Benchmark { |
| 20 | public: |
| 21 | CompositingImages(SkISize tileSize, SkISize tileGridSize, int layerCnt) |
| 22 | : fTileSize(tileSize), fTileGridSize(tileGridSize), fLayerCnt(layerCnt) { |
| 23 | fName.appendf("compositing_images_tile_size_%dx%d_tile_cnt_%dx%d_layers_%d", |
| 24 | fTileSize.fWidth, fTileSize.fHeight, fTileGridSize.fWidth, |
| 25 | fTileGridSize.fHeight, fLayerCnt); |
| 26 | } |
| 27 | |
| 28 | bool isSuitableFor(Backend backend) override { return kGPU_Backend == backend; } |
| 29 | |
| 30 | protected: |
| 31 | const char* onGetName() override { return fName.c_str(); } |
| 32 | |
| 33 | void onPerCanvasPreDraw(SkCanvas* canvas) override { |
| 34 | auto ii = SkImageInfo::Make(fTileSize.fWidth, fTileSize.fHeight, kRGBA_8888_SkColorType, |
| 35 | kPremul_SkAlphaType, nullptr); |
| 36 | SkRandom random; |
| 37 | int numImages = fLayerCnt * fTileGridSize.fWidth * fTileGridSize.fHeight; |
| 38 | fImages.reset(new sk_sp<SkImage>[numImages]); |
| 39 | for (int i = 0; i < numImages; ++i) { |
| 40 | auto surf = canvas->makeSurface(ii); |
| 41 | SkColor color = random.nextU(); |
| 42 | surf->getCanvas()->clear(color); |
| 43 | SkPaint paint; |
| 44 | paint.setColor(~color); |
| 45 | paint.setBlendMode(SkBlendMode::kSrc); |
| 46 | surf->getCanvas()->drawRect( |
| 47 | SkRect::MakeLTRB(3, 3, fTileSize.fWidth - 3, fTileSize.fHeight - 3), paint); |
| 48 | fImages[i] = surf->makeImageSnapshot(); |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | void onPerCanvasPostDraw(SkCanvas*) override { fImages.reset(); } |
| 53 | |
| 54 | void onDraw(int loops, SkCanvas* canvas) override { |
| 55 | SkPaint paint; |
| 56 | paint.setFilterQuality(kNone_SkFilterQuality); |
| 57 | // TODO: Use per-edge AA flags for tiles when API available. |
| 58 | paint.setAntiAlias(true); |
| 59 | for (int i = 0; i < loops; ++i) { |
| 60 | int imgIdx = 0; |
| 61 | for (int l = 0; l < fLayerCnt; ++l) { |
| 62 | for (int y = 0; y < fTileGridSize.fHeight; ++y) { |
| 63 | for (int x = 0; x < fTileGridSize.fWidth; ++x) { |
| 64 | canvas->drawImage(fImages[imgIdx++].get(), x * fTileSize.fWidth, |
| 65 | y * fTileSize.fHeight, &paint); |
| 66 | } |
| 67 | } |
| 68 | } |
| 69 | // Prevent any batching between composited "frames". |
| 70 | canvas->flush(); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | private: |
| 75 | SkIPoint onGetSize() override { |
| 76 | return SkIPoint::Make(fTileSize.fWidth * fTileGridSize.fWidth, |
| 77 | fTileSize.fHeight * fTileGridSize.fHeight); |
| 78 | } |
| 79 | |
| 80 | std::unique_ptr<sk_sp<SkImage>[]> fImages; |
| 81 | SkString fName; |
| 82 | SkISize fTileSize; |
| 83 | SkISize fTileGridSize; |
| 84 | int fLayerCnt; |
| 85 | |
| 86 | typedef Benchmark INHERITED; |
| 87 | }; |
| 88 | |
| 89 | DEF_BENCH(return new CompositingImages({256, 256}, {8, 8}, 1)); |
| 90 | DEF_BENCH(return new CompositingImages({512, 512}, {4, 4}, 1)); |
| 91 | DEF_BENCH(return new CompositingImages({1024, 512}, {2, 4}, 1)); |
| 92 | |
| 93 | DEF_BENCH(return new CompositingImages({256, 256}, {8, 8}, 4)); |
| 94 | DEF_BENCH(return new CompositingImages({512, 512}, {4, 4}, 4)); |
| 95 | DEF_BENCH(return new CompositingImages({1024, 512}, {2, 4}, 4)); |
| 96 | |
| 97 | DEF_BENCH(return new CompositingImages({256, 256}, {8, 8}, 16)); |
| 98 | DEF_BENCH(return new CompositingImages({512, 512}, {4, 4}, 16)); |
| 99 | DEF_BENCH(return new CompositingImages({1024, 512}, {2, 4}, 16)); |