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/*
* Copyright 2013 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 "SkBitmapDevice.h"
#include "SkBitmapSource.h"
#include "SkCanvas.h"
#include "SkDisplacementMapEffect.h"
#define FILTER_WIDTH_SMALL 32
#define FILTER_HEIGHT_SMALL 32
#define FILTER_WIDTH_LARGE 256
#define FILTER_HEIGHT_LARGE 256
class DisplacementBaseBench : public SkBenchmark {
public:
DisplacementBaseBench(bool small) :
fInitialized(false), fIsSmall(small) {
}
protected:
virtual void onPreDraw() SK_OVERRIDE {
if (!fInitialized) {
this->makeBitmap();
this->makeCheckerboard();
fInitialized = true;
}
}
void makeBitmap() {
const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
const int h = this->isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
fBitmap.allocPixels();
SkBitmapDevice device(fBitmap);
SkCanvas canvas(&device);
canvas.clear(0x00000000);
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(0xFF884422);
paint.setTextSize(SkIntToScalar(96));
const char* str = "g";
canvas.drawText(str, strlen(str), SkIntToScalar(15), SkIntToScalar(55), paint);
}
void makeCheckerboard() {
const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
const int h = this->isSmall() ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
fCheckerboard.allocPixels();
SkBitmapDevice device(fCheckerboard);
SkCanvas canvas(&device);
canvas.clear(0x00000000);
SkPaint darkPaint;
darkPaint.setColor(0xFF804020);
SkPaint lightPaint;
lightPaint.setColor(0xFF244484);
for (int y = 0; y < h; y += 16) {
for (int x = 0; x < w; x += 16) {
canvas.save();
canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
canvas.restore();
}
}
}
void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
canvas->save();
canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y),
SkIntToScalar(fBitmap.width()),
SkIntToScalar(fBitmap.height())));
canvas->drawBitmap(fBitmap, SkIntToScalar(x), SkIntToScalar(y), &paint);
canvas->restore();
}
inline bool isSmall() const { return fIsSmall; }
SkBitmap fBitmap, fCheckerboard;
private:
bool fInitialized;
bool fIsSmall;
typedef SkBenchmark INHERITED;
};
class DisplacementZeroBench : public DisplacementBaseBench {
public:
DisplacementZeroBench(bool small) : INHERITED(small) {
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large";
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
// No displacement effect
paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
(SkDisplacementMapEffect::kR_ChannelSelectorType,
SkDisplacementMapEffect::kG_ChannelSelectorType, 0.0f, displ)))->unref();
for (int i = 0; i < this->getLoops(); i++) {
this->drawClippedBitmap(canvas, 0, 0, paint);
}
}
private:
typedef DisplacementBaseBench INHERITED;
};
class DisplacementAlphaBench : public DisplacementBaseBench {
public:
DisplacementAlphaBench(bool small) : INHERITED(small) {
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large";
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
// Displacement, with 1 alpha component (which isn't pre-multiplied)
paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
(SkDisplacementMapEffect::kB_ChannelSelectorType,
SkDisplacementMapEffect::kA_ChannelSelectorType, 16.0f, displ)))->unref();
for (int i = 0; i < this->getLoops(); i++) {
drawClippedBitmap(canvas, 100, 0, paint);
}
}
private:
typedef DisplacementBaseBench INHERITED;
};
class DisplacementFullBench : public DisplacementBaseBench {
public:
DisplacementFullBench(bool small) : INHERITED(small) {
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return isSmall() ? "displacement_full_small" : "displacement_full_large";
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
SkAutoTUnref<SkImageFilter> displ(SkNEW_ARGS(SkBitmapSource, (fCheckerboard)));
// Displacement, with 2 non-alpha components
paint.setImageFilter(SkNEW_ARGS(SkDisplacementMapEffect,
(SkDisplacementMapEffect::kR_ChannelSelectorType,
SkDisplacementMapEffect::kB_ChannelSelectorType, 32.0f, displ)))->unref();
for (int i = 0; i < this->getLoops(); ++i) {
this->drawClippedBitmap(canvas, 200, 0, paint);
}
}
private:
typedef DisplacementBaseBench INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
DEF_BENCH( return new DisplacementZeroBench(true); )
DEF_BENCH( return new DisplacementAlphaBench(true); )
DEF_BENCH( return new DisplacementFullBench(true); )
DEF_BENCH( return new DisplacementZeroBench(false); )
DEF_BENCH( return new DisplacementAlphaBench(false); )
DEF_BENCH( return new DisplacementFullBench(false); )
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