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/*
* 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);)
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