3361471a35
I'm not quite sure why I wrote such a convoluted API with setLoops()/getLoops(). This replaces it with a loops argument passed to onDraw(). This CL is largely mechanical translation from the old API to the new one. MathBench used this->getLoops() outside onDraw(), which seems incorrect. I fixed it. BUG= R=djsollen@google.com Author: mtklein@google.com Review URL: https://codereview.chromium.org/99893003 git-svn-id: http://skia.googlecode.com/svn/trunk@12466 2bbb7eff-a529-9590-31e7-b0007b416f81
68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
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/*
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* Copyright 2012 The Android Open Source Project
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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 "SkCanvas.h"
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/**
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* This bench mark tests the use case where the user writes the a canvas
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* and then reads small chunks from it repeatedly. This can cause trouble
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* for the GPU as readbacks are very expensive.
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*/
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class ReadPixBench : public SkBenchmark {
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public:
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ReadPixBench() {}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return "readpix";
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}
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virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
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canvas->clear(SK_ColorBLACK);
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SkISize size = canvas->getDeviceSize();
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int offX = (size.width() - kWindowSize) / kNumStepsX;
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int offY = (size.height() - kWindowSize) / kNumStepsY;
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SkPaint paint;
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paint.setColor(SK_ColorBLUE);
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canvas->drawCircle(SkIntToScalar(size.width()/2),
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SkIntToScalar(size.height()/2),
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SkIntToScalar(size.width()/2),
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paint);
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SkBitmap bitmap;
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bitmap.setConfig(SkBitmap::kARGB_8888_Config, kWindowSize, kWindowSize);
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for (int i = 0; i < loops; i++) {
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for (int x = 0; x < kNumStepsX; ++x) {
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for (int y = 0; y < kNumStepsY; ++y) {
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canvas->readPixels(&bitmap, x * offX, y * offY);
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}
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}
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}
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}
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private:
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static const int kNumStepsX = 30;
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static const int kNumStepsY = 30;
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static const int kWindowSize = 5;
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typedef SkBenchmark INHERITED;
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};
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////////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new ReadPixBench(); )
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