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/*
* Copyright 2011 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 "SkCanvas.h"
#include "SkColor.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkPoint.h"
#include "SkRandom.h"
#include "SkRect.h"
#include "SkString.h"
// This is designed to emulate about 4 screens of textual content
class PicturePlaybackBench : public Benchmark {
public:
PicturePlaybackBench(const char name[]) {
fName.printf("picture_playback_%s", name);
fPictureWidth = SkIntToScalar(PICTURE_WIDTH);
fPictureHeight = SkIntToScalar(PICTURE_HEIGHT);
fTextSize = SkIntToScalar(TEXT_SIZE);
}
enum {
PICTURE_WIDTH = 1000,
PICTURE_HEIGHT = 4000,
TEXT_SIZE = 10
};
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(const int loops, SkCanvas* canvas) {
SkPictureRecorder recorder;
SkCanvas* pCanvas = recorder.beginRecording(PICTURE_WIDTH, PICTURE_HEIGHT, NULL, 0);
this->recordCanvas(pCanvas);
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
const SkPoint translateDelta = getTranslateDelta(loops);
for (int i = 0; i < loops; i++) {
picture->playback(canvas);
canvas->translate(translateDelta.fX, translateDelta.fY);
}
}
virtual void recordCanvas(SkCanvas* canvas) = 0;
virtual SkPoint getTranslateDelta(int N) {
SkIPoint canvasSize = onGetSize();
return SkPoint::Make(SkIntToScalar((PICTURE_WIDTH - canvasSize.fX)/N),
SkIntToScalar((PICTURE_HEIGHT- canvasSize.fY)/N));
}
SkString fName;
SkScalar fPictureWidth;
SkScalar fPictureHeight;
SkScalar fTextSize;
private:
typedef Benchmark INHERITED;
};
class TextPlaybackBench : public PicturePlaybackBench {
public:
TextPlaybackBench() : INHERITED("drawText") { }
protected:
void recordCanvas(SkCanvas* canvas) override {
SkPaint paint;
paint.setTextSize(fTextSize);
paint.setColor(SK_ColorBLACK);
const char* text = "Hamburgefons";
size_t len = strlen(text);
const SkScalar textWidth = paint.measureText(text, len);
for (SkScalar x = 0; x < fPictureWidth; x += textWidth) {
for (SkScalar y = 0; y < fPictureHeight; y += fTextSize) {
canvas->drawText(text, len, x, y, paint);
}
}
}
private:
typedef PicturePlaybackBench INHERITED;
};
class PosTextPlaybackBench : public PicturePlaybackBench {
public:
PosTextPlaybackBench(bool drawPosH)
: INHERITED(drawPosH ? "drawPosTextH" : "drawPosText")
, fDrawPosH(drawPosH) { }
protected:
void recordCanvas(SkCanvas* canvas) override {
SkPaint paint;
paint.setTextSize(fTextSize);
paint.setColor(SK_ColorBLACK);
const char* text = "Hamburgefons";
size_t len = strlen(text);
const SkScalar textWidth = paint.measureText(text, len);
SkScalar* adv = new SkScalar[len];
paint.getTextWidths(text, len, adv);
for (SkScalar x = 0; x < fPictureWidth; x += textWidth) {
for (SkScalar y = 0; y < fPictureHeight; y += fTextSize) {
SkPoint* pos = new SkPoint[len];
SkScalar advX = 0;
for (size_t i = 0; i < len; i++) {
if (fDrawPosH)
pos[i].set(x + advX, y);
else
pos[i].set(x + advX, y + i);
advX += adv[i];
}
canvas->drawPosText(text, len, pos, paint);
delete[] pos;
}
}
delete[] adv;
}
private:
bool fDrawPosH;
typedef PicturePlaybackBench INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
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 };
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;
}
switch (fMode) {
case kTiled: fName.append("_tiled" ); break;
case kRandom: fName.append("_random"); break;
}
}
const char* onGetName() override { return fName.c_str(); }
SkIPoint onGetSize() override { return SkIPoint::Make(1024,1024); }
void onPreDraw() override {
SkAutoTDelete<SkBBHFactory> factory;
switch (fBBH) {
case kNone: break;
case kRTree: factory.reset(new SkRTreeFactory); 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());
}
void onDraw(const int loops, SkCanvas* canvas) 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;
SkAutoTUnref<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 ); )
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