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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(void* param, const char name[]) : INHERITED(param) {
fName.printf("deferred_canvas_%s", name);
}
enum {
N = SkBENCHLOOP(25), // number of times to create the picture
CANVAS_WIDTH = 200,
CANVAS_HEIGHT = 200,
};
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) {
SkDevice *device = canvas->getDevice()->createCompatibleDevice(
SkBitmap::kARGB_8888_Config, CANVAS_WIDTH, CANVAS_HEIGHT, false);
SkDeferredCanvas deferredCanvas(device);
device->unref();
initDeferredCanvas(deferredCanvas);
for (int i = 0; i < N; i++) {
drawInDeferredCanvas(deferredCanvas);
}
finalizeDeferredCanvas(deferredCanvas);
deferredCanvas.flush();
}
virtual void initDeferredCanvas(SkDeferredCanvas& canvas) = 0;
virtual void drawInDeferredCanvas(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;
};
// 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(void* param)
: INHERITED(param, "record") {
}
enum {
M = SkBENCHLOOP(700), // number of individual draws in each loop
};
protected:
virtual void initDeferredCanvas(SkDeferredCanvas& canvas) SK_OVERRIDE {
canvas.setNotificationClient(&fNotificationClient);
}
virtual void drawInDeferredCanvas(SkDeferredCanvas& canvas) SK_OVERRIDE {
SkRect rect;
rect.setXYWH(0, 0, 10, 10);
SkPaint paint;
for (int i = 0; i < M; 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;
};
///////////////////////////////////////////////////////////////////////////////
static SkBenchmark* Fact0(void* p) { return new DeferredRecordBench(p); }
static BenchRegistry gReg0(Fact0);
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