81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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* Copyright 2015 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 "Benchmark.h"
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#include "SkCanvas.h"
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#include "SkMatrix.h"
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#include "SkPaint.h"
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#include "SkString.h"
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/**
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* This bench measures the rendering time of SkCanvas::drawBitmap with different anti-aliasing /
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* matrix combinations.
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*/
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class DrawBitmapAABench : public Benchmark {
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public:
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DrawBitmapAABench(bool doAA, const SkMatrix& matrix, const char name[])
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: fMatrix(matrix)
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, fName("draw_bitmap_") {
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fPaint.setAntiAlias(doAA);
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// Most clients use filtering, so let's focus on this for now.
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fPaint.setFilterQuality(kLow_SkFilterQuality);
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fName.appendf("%s_%s", doAA ? "aa" : "noaa", name);
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}
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protected:
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const char* onGetName() override {
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return fName.c_str();
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}
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void onPreDraw() override {
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fBitmap.allocN32Pixels(200, 200);
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fBitmap.eraseARGB(255, 0, 255, 0);
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}
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void onDraw(const int loops, SkCanvas* canvas) override {
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canvas->concat(fMatrix);
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for (int i = 0; i < loops; i++) {
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canvas->drawBitmap(fBitmap, 0, 0, &fPaint);
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}
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}
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private:
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SkPaint fPaint;
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SkMatrix fMatrix;
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SkString fName;
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SkBitmap fBitmap;
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typedef Benchmark INHERITED;
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};
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DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1), "ident"); )
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DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1.17f), "scale"); )
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DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeTrans(17.5f, 17.5f), "translate"); )
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DEF_BENCH(
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SkMatrix m;
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m.reset();
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m.preRotate(15);
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return new DrawBitmapAABench(false, m, "rotate");
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)
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DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeScale(1), "ident"); )
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DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeScale(1.17f), "scale"); )
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DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeTrans(17.5f, 17.5f), "translate"); )
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DEF_BENCH(
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SkMatrix m;
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m.reset();
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m.preRotate(15);
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return new DrawBitmapAABench(true, m, "rotate");
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)
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