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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 "SkBenchmark.h"
#include "SkCanvas.h"
#include "SkColor.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkPoint.h"
#include "SkRect.h"
#include "SkString.h"
// This is designed to emulate about 4 screens of textual content
class PicturePlaybackBench : public SkBenchmark {
public:
PicturePlaybackBench(void* param, const char name[]) : INHERITED(param) {
fName.printf("picture_playback_%s", name);
fPictureWidth = SkIntToScalar(PICTURE_WIDTH);
fPictureHeight = SkIntToScalar(PICTURE_HEIGHT);
fTextSize = SkIntToScalar(TEXT_SIZE);
}
enum {
N = SkBENCHLOOP(200), // number of times to playback the picture
PICTURE_WIDTH = 1000,
PICTURE_HEIGHT = 4000,
TEXT_SIZE = 10
};
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) {
SkPicture picture;
SkCanvas* pCanvas = picture.beginRecording(PICTURE_WIDTH, PICTURE_HEIGHT);
recordCanvas(pCanvas);
picture.endRecording();
const SkPoint translateDelta = getTranslateDelta();
for (int i = 0; i < N; i++) {
picture.draw(canvas);
canvas->translate(translateDelta.fX, translateDelta.fY);
}
}
virtual void recordCanvas(SkCanvas* canvas) = 0;
virtual SkPoint getTranslateDelta() {
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 SkBenchmark INHERITED;
};
class TextPlaybackBench : public PicturePlaybackBench {
public:
TextPlaybackBench(void* param) : INHERITED(param, "drawText") { }
protected:
virtual void recordCanvas(SkCanvas* canvas) {
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(void* param, bool drawPosH)
: INHERITED(param, drawPosH ? "drawPosTextH" : "drawPosText")
, fDrawPosH(drawPosH) { }
protected:
virtual void recordCanvas(SkCanvas* canvas) {
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 + SkIntToScalar(i));
advX += adv[i];
}
canvas->drawPosText(text, len, pos, paint);
delete[] pos;
}
}
delete[] adv;
}
private:
bool fDrawPosH;
typedef PicturePlaybackBench INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static SkBenchmark* Fact0(void* p) { return new TextPlaybackBench(p); }
static SkBenchmark* Fact1(void* p) { return new PosTextPlaybackBench(p, true); }
static SkBenchmark* Fact2(void* p) { return new PosTextPlaybackBench(p, false); }
static BenchRegistry gReg0(Fact0);
static BenchRegistry gReg1(Fact1);
static BenchRegistry gReg2(Fact2);
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