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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 "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkString.h"
static void draw_into_bitmap(const SkBitmap& bm) {
const int w = bm.width();
const int h = bm.height();
SkCanvas canvas(bm);
SkPaint p;
p.setAntiAlias(true);
p.setColor(SK_ColorRED);
canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
SkIntToScalar(SkMin32(w, h))*3/8, p);
SkRect r;
r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(SkIntToScalar(4));
p.setColor(SK_ColorBLUE);
canvas.drawRect(r, p);
}
/* Variants for bitmaprect
src : entire bitmap, subset, fractional subset
dst : same size as src, diff size
paint : filter-p
*/
class BitmapRectBench : public Benchmark {
SkBitmap fBitmap;
bool fSlightMatrix;
uint8_t fAlpha;
SkPaint::FilterLevel fFilterLevel;
SkString fName;
SkRect fSrcR, fDstR;
static const int kWidth = 128;
static const int kHeight = 128;
public:
BitmapRectBench(U8CPU alpha, SkPaint::FilterLevel filterLevel,
bool slightMatrix) {
fAlpha = SkToU8(alpha);
fFilterLevel = filterLevel;
fSlightMatrix = slightMatrix;
fBitmap.setInfo(SkImageInfo::MakeN32Premul(kWidth, kHeight));
}
protected:
const char* onGetName() SK_OVERRIDE {
fName.printf("bitmaprect_%02X_%sfilter_%s",
fAlpha,
SkPaint::kNone_FilterLevel == fFilterLevel ? "no" : "",
fSlightMatrix ? "trans" : "identity");
return fName.c_str();
}
void onPreDraw() SK_OVERRIDE {
fBitmap.allocPixels();
fBitmap.setAlphaType(kOpaque_SkAlphaType);
fBitmap.eraseColor(SK_ColorBLACK);
draw_into_bitmap(fBitmap);
fSrcR.iset(0, 0, kWidth, kHeight);
fDstR.iset(0, 0, kWidth, kHeight);
if (fSlightMatrix) {
// want fractional translate
fDstR.offset(SK_Scalar1 / 3, SK_Scalar1 * 5 / 7);
// want enough to create a scale matrix, but not enough to scare
// off our sniffer which tries to see if the matrix is "effectively"
// translate-only.
fDstR.fRight += SK_Scalar1 / (kWidth * 60);
}
}
void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
SkRandom rand;
SkPaint paint;
this->setupPaint(&paint);
paint.setFilterLevel(fFilterLevel);
paint.setAlpha(fAlpha);
for (int i = 0; i < loops; i++) {
canvas->drawBitmapRectToRect(fBitmap, &fSrcR, fDstR, &paint);
}
}
private:
typedef Benchmark INHERITED;
};
DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kNone_FilterLevel, false))
DEF_BENCH(return new BitmapRectBench(0x80, SkPaint::kNone_FilterLevel, false))
DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kLow_FilterLevel, false))
DEF_BENCH(return new BitmapRectBench(0x80, SkPaint::kLow_FilterLevel, false))
DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kNone_FilterLevel, true))
DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kLow_FilterLevel, true))
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