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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBenchmark.h"
#include "SkDeferredCanvas.h"
#include "SkDevice.h"
#include "SkString.h"
class DeferredCanvasBench : public SkBenchmark {
public:
DeferredCanvasBench(const char name[]) {
fName.printf("deferred_canvas_%s", name);
}
enum {
CANVAS_WIDTH = 200,
CANVAS_HEIGHT = 200,
};
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(const int loops, SkCanvas* canvas) {
SkBaseDevice *device = canvas->getDevice()->createCompatibleDevice(
SkBitmap::kARGB_8888_Config, CANVAS_WIDTH, CANVAS_HEIGHT, false);
SkAutoTUnref<SkDeferredCanvas> deferredCanvas(SkDeferredCanvas::Create(device));
device->unref();
initDeferredCanvas(deferredCanvas);
drawInDeferredCanvas(loops, deferredCanvas);
finalizeDeferredCanvas(deferredCanvas);
deferredCanvas->flush();
}
virtual void initDeferredCanvas(SkDeferredCanvas* canvas) = 0;
virtual void drawInDeferredCanvas(const int loops, SkDeferredCanvas* canvas) = 0;
virtual void finalizeDeferredCanvas(SkDeferredCanvas* canvas) = 0;
SkString fName;
private:
typedef SkBenchmark INHERITED;
};
class SimpleNotificationClient : public SkDeferredCanvas::NotificationClient {
public:
SimpleNotificationClient() : fDummy(false) {}
//bogus virtual implementations that just do something small
virtual void prepareForDraw() SK_OVERRIDE {fDummy = true;}
virtual void storageAllocatedForRecordingChanged(size_t) SK_OVERRIDE {fDummy = false;}
virtual void flushedDrawCommands() SK_OVERRIDE {fDummy = !fDummy;}
private:
bool fDummy;
typedef SkDeferredCanvas::NotificationClient INHERITED;
};
// Test that records very simple draw operations.
// This benchmark aims to capture performance fluctuations in the recording
// overhead of SkDeferredCanvas
class DeferredRecordBench : public DeferredCanvasBench {
public:
DeferredRecordBench()
: INHERITED("record") {
}
protected:
virtual void initDeferredCanvas(SkDeferredCanvas* canvas) SK_OVERRIDE {
canvas->setNotificationClient(&fNotificationClient);
}
virtual void drawInDeferredCanvas(const int loops, SkDeferredCanvas* canvas) SK_OVERRIDE {
SkRect rect;
rect.setXYWH(0, 0, 10, 10);
SkPaint paint;
for (int i = 0; i < loops; i++) {
canvas->save(SkCanvas::kMatrixClip_SaveFlag);
canvas->translate(SkIntToScalar(i * 27 % CANVAS_WIDTH), SkIntToScalar(i * 13 % CANVAS_HEIGHT));
canvas->drawRect(rect, paint);
canvas->restore();
}
}
virtual void finalizeDeferredCanvas(SkDeferredCanvas* canvas) SK_OVERRIDE {
canvas->clear(0x0);
canvas->setNotificationClient(NULL);
}
private:
typedef DeferredCanvasBench INHERITED;
SimpleNotificationClient fNotificationClient;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new DeferredRecordBench(); )
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