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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 "bench/Benchmark.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkFont.h"
#include "include/core/SkSurface.h"
#include "include/effects/SkImageFilters.h"
#include "tools/fonts/FontToolUtils.h"
#define FILTER_WIDTH_SMALL 32
#define FILTER_HEIGHT_SMALL 32
#define FILTER_WIDTH_LARGE 256
#define FILTER_HEIGHT_LARGE 256
class DisplacementBaseBench : public Benchmark {
public:
DisplacementBaseBench(bool small) : fInitialized(false), fIsSmall(small) { }
protected:
void onDelayedSetup() 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_SMALL : FILTER_HEIGHT_LARGE;
auto surf = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(w, h));
SkPaint paint;
paint.setColor(0xFF884422);
SkFont font = ToolUtils::DefaultFont();
font.setSize(SkIntToScalar(96));
surf->getCanvas()->drawSimpleText("g", 1, SkTextEncoding::kUTF8, 15, 55, font, paint);
fImage = surf->makeImageSnapshot();
}
void makeCheckerboard() {
const int w = this->isSmall() ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
const int h = this->isSmall() ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE;
auto surface(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(w, h)));
SkCanvas* canvas = surface->getCanvas();
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();
}
}
fCheckerboard = surface->makeImageSnapshot();
}
void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) {
canvas->save();
canvas->clipIRect(fImage->bounds().makeOffset(x, y));
canvas->drawImage(fImage, SkIntToScalar(x), SkIntToScalar(y), SkSamplingOptions(), &paint);
canvas->restore();
}
inline bool isSmall() const { return fIsSmall; }
sk_sp<SkImage> fImage, fCheckerboard;
private:
bool fInitialized;
bool fIsSmall;
using INHERITED = Benchmark;
};
class DisplacementZeroBench : public DisplacementBaseBench {
public:
DisplacementZeroBench(bool small) : INHERITED(small) { }
protected:
const char* onGetName() override {
return this->isSmall() ? "displacement_zero_small" : "displacement_zero_large";
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
sk_sp<SkImageFilter> displ(SkImageFilters::Image(fCheckerboard, SkFilterMode::kLinear));
// No displacement effect
paint.setImageFilter(SkImageFilters::DisplacementMap(SkColorChannel::kR, SkColorChannel::kG,
0.0f, std::move(displ), nullptr));
for (int i = 0; i < loops; i++) {
this->drawClippedBitmap(canvas, 0, 0, paint);
}
}
private:
using INHERITED = DisplacementBaseBench;
};
class DisplacementAlphaBench : public DisplacementBaseBench {
public:
DisplacementAlphaBench(bool small) : INHERITED(small) { }
protected:
const char* onGetName() override {
return isSmall() ? "displacement_alpha_small" : "displacement_alpha_large";
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
sk_sp<SkImageFilter> displ(SkImageFilters::Image(fCheckerboard, SkFilterMode::kLinear));
// Displacement, with 1 alpha component (which isn't pre-multiplied)
paint.setImageFilter(SkImageFilters::DisplacementMap(SkColorChannel::kB, SkColorChannel::kA,
16.0f, std::move(displ), nullptr));
for (int i = 0; i < loops; i++) {
this->drawClippedBitmap(canvas, 100, 0, paint);
}
}
private:
using INHERITED = DisplacementBaseBench;
};
class DisplacementFullBench : public DisplacementBaseBench {
public:
DisplacementFullBench(bool small) : INHERITED(small) { }
protected:
const char* onGetName() override {
return isSmall() ? "displacement_full_small" : "displacement_full_large";
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
sk_sp<SkImageFilter> displ(SkImageFilters::Image(fCheckerboard, SkFilterMode::kLinear));
// Displacement, with 2 non-alpha components
paint.setImageFilter(SkImageFilters::DisplacementMap(SkColorChannel::kR, SkColorChannel::kB,
32.0f, std::move(displ), nullptr));
for (int i = 0; i < loops; ++i) {
this->drawClippedBitmap(canvas, 200, 0, paint);
}
}
private:
using INHERITED = DisplacementBaseBench;
};
///////////////////////////////////////////////////////////////////////////////
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); )