diff options
-rw-r--r-- | bench/PicturePlaybackBench.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/bench/PicturePlaybackBench.cpp b/bench/PicturePlaybackBench.cpp index 947a7844f6..d5000294e3 100644 --- a/bench/PicturePlaybackBench.cpp +++ b/bench/PicturePlaybackBench.cpp @@ -11,6 +11,7 @@ #include "SkPicture.h" #include "SkPictureRecorder.h" #include "SkPoint.h" +#include "SkRandom.h" #include "SkRect.h" #include "SkString.h" @@ -139,3 +140,85 @@ private: DEF_BENCH( return new TextPlaybackBench(); ) DEF_BENCH( return new PosTextPlaybackBench(true); ) DEF_BENCH( return new PosTextPlaybackBench(false); ) + +// Chrome draws into small tiles with impl-side painting. +// This benchmark measures the relative performance of our bounding-box hierarchies, +// both when querying tiles perfectly and when not. +enum BBH { kNone, kRTree, kTileGrid }; +enum Mode { kTiled, kRandom }; +class TiledPlaybackBench : public Benchmark { +public: + TiledPlaybackBench(BBH bbh, Mode mode) : fBBH(bbh), fMode(mode), fName("tiled_playback") { + switch (fBBH) { + case kNone: fName.append("_none" ); break; + case kRTree: fName.append("_rtree" ); break; + case kTileGrid: fName.append("_tilegrid"); break; + } + switch (fMode) { + case kTiled: fName.append("_tiled" ); break; + case kRandom: fName.append("_random"); break; + } + } + + virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); } + virtual SkIPoint onGetSize() SK_OVERRIDE { return SkIPoint::Make(1024,1024); } + + virtual void onPreDraw() SK_OVERRIDE { + SkTileGridFactory::TileGridInfo info = { { 256, 256 }, {0,0}, {0,0} }; + SkAutoTDelete<SkBBHFactory> factory; + switch (fBBH) { + case kNone: break; + case kRTree: factory.reset(new SkRTreeFactory); break; + case kTileGrid: factory.reset(new SkTileGridFactory(info)); break; + } + + SkPictureRecorder recorder; + SkCanvas* canvas = recorder.beginRecording(1024, 1024, factory); + SkRandom rand; + for (int i = 0; i < 10000; i++) { + SkScalar x = rand.nextRangeScalar(0, 1024), + y = rand.nextRangeScalar(0, 1024), + w = rand.nextRangeScalar(0, 128), + h = rand.nextRangeScalar(0, 128); + SkPaint paint; + paint.setColor(rand.nextU()); + paint.setAlpha(0xFF); + canvas->drawRect(SkRect::MakeXYWH(x,y,w,h), paint); + } + fPic.reset(recorder.endRecording()); + } + + virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { + for (int i = 0; i < loops; i++) { + // This inner loop guarantees we make the same choices for all bench variants. + SkRandom rand; + for (int j = 0; j < 10; j++) { + SkScalar x = 0, y = 0; + switch (fMode) { + case kTiled: x = SkScalar(256 * rand.nextULessThan(4)); + y = SkScalar(256 * rand.nextULessThan(4)); + break; + case kRandom: x = rand.nextRangeScalar(0, 768); + y = rand.nextRangeScalar(0, 768); + break; + } + SkAutoCanvasRestore ar(canvas, true/*save now*/); + canvas->clipRect(SkRect::MakeXYWH(x,y,256,256)); + fPic->playback(canvas); + } + } + } + +private: + BBH fBBH; + Mode fMode; + SkString fName; + SkAutoTDelete<SkPicture> fPic; +}; + +DEF_BENCH( return new TiledPlaybackBench(kNone, kRandom); ) +DEF_BENCH( return new TiledPlaybackBench(kNone, kTiled ); ) +DEF_BENCH( return new TiledPlaybackBench(kRTree, kRandom); ) +DEF_BENCH( return new TiledPlaybackBench(kRTree, kTiled ); ) +DEF_BENCH( return new TiledPlaybackBench(kTileGrid, kRandom); ) +DEF_BENCH( return new TiledPlaybackBench(kTileGrid, kTiled ); ) |