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Diffstat (limited to 'bench/TileImageFilterBench.cpp')
-rw-r--r-- | bench/TileImageFilterBench.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/bench/TileImageFilterBench.cpp b/bench/TileImageFilterBench.cpp new file mode 100644 index 0000000000..350b0ac214 --- /dev/null +++ b/bench/TileImageFilterBench.cpp @@ -0,0 +1,73 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "Benchmark.h" +#include "SkTileImageFilter.h" +#include "SkCanvas.h" +#include "SkPaint.h" +#include "SkString.h" + +#define WIDTH 512 +#define HEIGHT 512 + +// This bench exercises SkTileImageFilter drawn from a 50x50 source to +// a 512x512 destination. It is drawn using a single rect, or "tiled" +// rendering (using 32x32, 64x64 tiles). Tiled rendering is currently an order +// of magnitude slower, since SkTileImageFilter does not clip the +// source or destination rects. + +class TileImageFilterBench : public Benchmark { +public: + TileImageFilterBench(int tileSize) : fTileSize(tileSize) { + if (tileSize > 0) { + fName.printf("tile_image_filter_tiled_%d", tileSize); + } else { + fName.printf("tile_image_filter"); + } + } + +protected: + const char* onGetName() override { + return fName.c_str(); + } + + void onDraw(int loops, SkCanvas* canvas) override { + SkPaint paint; + SkAutoTUnref<SkImageFilter> tile(SkTileImageFilter::Create( + SkRect::MakeWH(50, 50), + SkRect::MakeWH(WIDTH, HEIGHT), + nullptr)); + paint.setImageFilter(tile); + + for (int i = 0; i < loops; i++) { + if (fTileSize > 0) { + for (int y = 0; y < HEIGHT; y += fTileSize) { + for (int x = 0; x < WIDTH; x += fTileSize) { + canvas->save(); + SkIRect clipIRect = SkIRect::MakeXYWH(x, y, fTileSize, fTileSize); + canvas->clipRect(SkRect::Make(clipIRect)); + canvas->drawRect(SkRect::MakeWH(WIDTH, HEIGHT), paint); + canvas->restore(); + } + } + } else { + canvas->drawRect(SkRect::MakeWH(WIDTH, HEIGHT), paint); + } + } + } + +private: + SkString fName; + // Note: this is the tile size used for tiled rendering, not for the size + // of the SkTileImageFilter source rect. + int fTileSize; + typedef Benchmark INHERITED; +}; + +DEF_BENCH(return new TileImageFilterBench(0);) +DEF_BENCH(return new TileImageFilterBench(32);) +DEF_BENCH(return new TileImageFilterBench(64);) |