зеркало из https://github.com/mozilla/moz-skia.git
114 строки
3.4 KiB
C++
114 строки
3.4 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBenchmark.h"
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#include "SkBitmap.h"
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#include "SkPaint.h"
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#include "SkCanvas.h"
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#include "SkColorPriv.h"
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#include "SkRandom.h"
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#include "SkString.h"
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static void draw_into_bitmap(const SkBitmap& bm) {
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const int w = bm.width();
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const int h = bm.height();
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SkCanvas canvas(bm);
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SkPaint p;
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p.setAntiAlias(true);
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p.setColor(SK_ColorRED);
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canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
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SkIntToScalar(SkMin32(w, h))*3/8, p);
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SkRect r;
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r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
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p.setStyle(SkPaint::kStroke_Style);
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p.setStrokeWidth(SkIntToScalar(4));
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p.setColor(SK_ColorBLUE);
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canvas.drawRect(r, p);
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}
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/* Variants for bitmaprect
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src : entire bitmap, subset, fractional subset
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dst : same size as src, diff size
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paint : filter-p
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*/
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class BitmapRectBench : public SkBenchmark {
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SkBitmap fBitmap;
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bool fSlightMatrix;
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uint8_t fAlpha;
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SkPaint::FilterLevel fFilterLevel;
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SkString fName;
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SkRect fSrcR, fDstR;
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static const int kWidth = 128;
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static const int kHeight = 128;
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public:
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BitmapRectBench(U8CPU alpha, SkPaint::FilterLevel filterLevel,
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bool slightMatrix) {
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fAlpha = SkToU8(alpha);
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fFilterLevel = filterLevel;
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fSlightMatrix = slightMatrix;
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fBitmap.setConfig(SkBitmap::kARGB_8888_Config, kWidth, kHeight);
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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fName.printf("bitmaprect_%02X_%sfilter_%s",
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fAlpha,
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SkPaint::kNone_FilterLevel == fFilterLevel ? "no" : "",
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fSlightMatrix ? "trans" : "identity");
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return fName.c_str();
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}
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virtual void onPreDraw() SK_OVERRIDE {
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fBitmap.allocPixels();
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fBitmap.setAlphaType(kOpaque_SkAlphaType);
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fBitmap.eraseColor(SK_ColorBLACK);
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draw_into_bitmap(fBitmap);
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fSrcR.iset(0, 0, kWidth, kHeight);
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fDstR.iset(0, 0, kWidth, kHeight);
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if (fSlightMatrix) {
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// want fractional translate
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fDstR.offset(SK_Scalar1 / 3, SK_Scalar1 * 5 / 7);
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// want enough to create a scale matrix, but not enough to scare
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// off our sniffer which tries to see if the matrix is "effectively"
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// translate-only.
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fDstR.fRight += SK_Scalar1 / (kWidth * 60);
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}
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}
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virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
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SkRandom rand;
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SkPaint paint;
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this->setupPaint(&paint);
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paint.setFilterLevel(fFilterLevel);
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paint.setAlpha(fAlpha);
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for (int i = 0; i < loops; i++) {
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canvas->drawBitmapRectToRect(fBitmap, &fSrcR, fDstR, &paint);
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}
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}
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private:
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typedef SkBenchmark INHERITED;
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};
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DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kNone_FilterLevel, false))
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DEF_BENCH(return new BitmapRectBench(0x80, SkPaint::kNone_FilterLevel, false))
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DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kLow_FilterLevel, false))
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DEF_BENCH(return new BitmapRectBench(0x80, SkPaint::kLow_FilterLevel, false))
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DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kNone_FilterLevel, true))
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DEF_BENCH(return new BitmapRectBench(0xFF, SkPaint::kLow_FilterLevel, true))
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