skia2/bench/ImageBench.cpp
mtklein a1ebeb25e9 Remove const from const int loops.
This drives me nuts, and prevents `while (loops --> 0)`.

BUG=skia:

Review URL: https://codereview.chromium.org/1379923005
2015-10-01 09:43:39 -07:00

60 lines
1.6 KiB
C++

/*
* Copyright 2015 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 "SkCanvas.h"
#include "SkImage.h"
#include "SkSurface.h"
class Image2RasterBench : public Benchmark {
public:
Image2RasterBench() {
fName.set("native_image_to_raster_surface");
}
bool isSuitableFor(Backend backend) override {
return kGPU_Backend == backend || kRaster_Backend == backend;
}
protected:
const char* onGetName() override {
return fName.c_str();
}
// We explicitly want to bench drawing a Image [cpu or gpu backed] into a raster target,
// to ensure that we can cache the read-back in the case of gpu -> raster
//
void onPerCanvasPreDraw(SkCanvas* canvas) override {
// create an Image reflecting the canvas (gpu or cpu)
SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
SkAutoTUnref<SkSurface> surface(canvas->newSurface(info));
canvas->drawColor(SK_ColorRED);
fImage.reset(surface->newImageSnapshot());
// create a cpu-backed Surface
fRasterSurface.reset(SkSurface::NewRaster(info));
}
void onDraw(int loops, SkCanvas*) override {
for (int i = 0; i < loops; i++) {
for (int inner = 0; inner < 10; ++inner) {
fRasterSurface->getCanvas()->drawImage(fImage, 0, 0);
}
}
}
private:
SkString fName;
SkAutoTUnref<SkImage> fImage;
SkAutoTUnref<SkSurface> fRasterSurface;
typedef Benchmark INHERITED;
};
DEF_BENCH( return new Image2RasterBench; )