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Diffstat (limited to 'chromium/third_party/skia/bench/DisplacementBench.cpp')
| -rw-r--r-- | chromium/third_party/skia/bench/DisplacementBench.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/chromium/third_party/skia/bench/DisplacementBench.cpp b/chromium/third_party/skia/bench/DisplacementBench.cpp new file mode 100644 index 00000000000..881ba33b246 --- /dev/null +++ b/chromium/third_party/skia/bench/DisplacementBench.cpp @@ -0,0 +1,174 @@ +/* + * 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 "SkBitmapSource.h" +#include "SkCanvas.h" +#include "SkDisplacementMapEffect.h" + +#define FILTER_WIDTH_SMALL 32 +#define FILTER_HEIGHT_SMALL 32 +#define FILTER_WIDTH_LARGE 256 +#define FILTER_HEIGHT_LARGE 256 + +class DisplacementBaseBench : public Benchmark { +public: + DisplacementBaseBench(bool small) : + fInitialized(false), fIsSmall(small) { + } + +protected: + virtual void onPreDraw() SK_OVERRIDE { + if (!fInitialized) { + this->makeBitmap(); + this->makeCheckerboard(); + fInitialized = true; + } + } + + void makeBitmap() { + const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; + const int h = this->isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; + fBitmap.allocN32Pixels(w, h); + SkCanvas canvas(fBitmap); + canvas.clear(0x00000000); + SkPaint paint; + paint.setAntiAlias(true); + paint.setColor(0xFF884422); + paint.setTextSize(SkIntToScalar(96)); + const char* str = "g"; + canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint); + } + + void makeCheckerboard() { + const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; + const int h = this->isSmall() ? 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(); + } + } + } + + void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) { + canvas->save(); + canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), + SkIntToScalar(fBitmap.width()), + SkIntToScalar(fBitmap.height()))); + canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint); + canvas->restore(); + } + + inline bool isSmall() const { return fIsSmall; } + + SkBitmap fBitmap, fCheckerboard; +private: + bool fInitialized; + bool fIsSmall; + typedef Benchmark INHERITED; +}; + +class DisplacementZeroBench : public DisplacementBaseBench { +public: + DisplacementZeroBench(bool small) : INHERITED(small) { + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large"; + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + SkPaint paint; + SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); + // No displacement effect + paint.setImageFilter(SkDisplacementMapEffect::Create( + SkDisplacementMapEffect::kR_ChannelSelectorType, + SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ))->unref(); + + for (int i = 0; i < loops; i++) { + this->drawClippedBitmap(canvas, 0, 0, paint); + } + } + +private: + typedef DisplacementBaseBench INHERITED; +}; + +class DisplacementAlphaBench : public DisplacementBaseBench { +public: + DisplacementAlphaBench(bool small) : INHERITED(small) { + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large"; + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + SkPaint paint; + SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); + // Displacement, with 1 alpha component (which isn't pre-multiplied) + paint.setImageFilter(SkDisplacementMapEffect::Create( + SkDisplacementMapEffect::kB_ChannelSelectorType, + SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ))->unref(); + for (int i = 0; i < loops; i++) { + drawClippedBitmap(canvas, 100, 0, paint); + } + } + +private: + typedef DisplacementBaseBench INHERITED; +}; + +class DisplacementFullBench : public DisplacementBaseBench { +public: + DisplacementFullBench(bool small) : INHERITED(small) { + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return isSmall() ? "displacement_full_small" : "displacement_full_large"; + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + SkPaint paint; + SkAutoTUnref<SkImageFilter> displ(SkBitmapSource::Create(fCheckerboard)); + // Displacement, with 2 non-alpha components + paint.setImageFilter(SkDisplacementMapEffect::Create( + SkDisplacementMapEffect::kR_ChannelSelectorType, + SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ))->unref(); + for (int i = 0; i < loops; ++i) { + this->drawClippedBitmap(canvas, 200, 0, paint); + } + } + +private: + typedef DisplacementBaseBench INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +DEF_BENCH( return new DisplacementZeroBench(true); ) +DEF_BENCH( return new DisplacementAlphaBench(true); ) +DEF_BENCH( return new DisplacementFullBench(true); ) +DEF_BENCH( return new DisplacementZeroBench(false); ) +DEF_BENCH( return new DisplacementAlphaBench(false); ) +DEF_BENCH( return new DisplacementFullBench(false); ) |