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