diff options
Diffstat (limited to 'chromium/third_party/skia/bench/MagnifierBench.cpp')
-rw-r--r-- | chromium/third_party/skia/bench/MagnifierBench.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/chromium/third_party/skia/bench/MagnifierBench.cpp b/chromium/third_party/skia/bench/MagnifierBench.cpp new file mode 100644 index 00000000000..875ec4f465f --- /dev/null +++ b/chromium/third_party/skia/bench/MagnifierBench.cpp @@ -0,0 +1,85 @@ +/* + * Copyright 2013 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 "SkBitmapDevice.h" +#include "SkCanvas.h" +#include "SkMagnifierImageFilter.h" +#include "SkRandom.h" + +#define FILTER_WIDTH_SMALL 32 +#define FILTER_HEIGHT_SMALL 32 +#define FILTER_WIDTH_LARGE 256 +#define FILTER_HEIGHT_LARGE 256 + +class MagnifierBench : public Benchmark { +public: + MagnifierBench(bool small) : + fIsSmall(small), fInitialized(false) { + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return fIsSmall ? "magnifier_small" : "magnifier_large"; + } + + virtual void onPreDraw() SK_OVERRIDE { + if (!fInitialized) { + make_checkerboard(); + fInitialized = true; + } + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; + const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE; + SkPaint paint; + paint.setImageFilter( + SkMagnifierImageFilter::Create( + SkRect::MakeXYWH(SkIntToScalar(w / 4), + SkIntToScalar(h / 4), + SkIntToScalar(w / 2), + SkIntToScalar(h / 2)), 100))->unref(); + + for (int i = 0; i < loops; i++) { + canvas->drawBitmap(fCheckerboard, 0, 0, &paint); + } + } + +private: + void make_checkerboard() { + const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; + const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; + fCheckerboard.allocN32Pixels(w, h); + SkCanvas canvas(fCheckerboard); + canvas.clear(0x00000000); + SkPaint darkPaint; + darkPaint.setColor(0xFF804020); + SkPaint lightPaint; + lightPaint.setColor(0xFF244484); + for (int y = 0; y < h; y += 16) { + for (int x = 0; x < w; x += 16) { + canvas.save(); + canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); + canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); + canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); + canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); + canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); + canvas.restore(); + } + } + } + + bool fIsSmall; + bool fInitialized; + SkBitmap fCheckerboard; + typedef Benchmark INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +DEF_BENCH( return new MagnifierBench(true); ) +DEF_BENCH( return new MagnifierBench(false); ) |