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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkColorPriv.h"
#include "SkShader.h"
#include "SkBlurImageFilter.h"
#include "SkColorFilterImageFilter.h"
#include "SkComposeImageFilter.h"
#include "SkMergeImageFilter.h"
#include "SkOffsetImageFilter.h"
#include "SkTestImageFilters.h"
#define FILTER_WIDTH SkIntToScalar(150)
#define FILTER_HEIGHT SkIntToScalar(200)
static sk_sp<SkImageFilter> make0() {
return SkDownSampleImageFilter::Make(SK_Scalar1 / 5, nullptr);
}
static sk_sp<SkImageFilter> make1() {
return SkOffsetImageFilter::Make(SkIntToScalar(16), SkIntToScalar(16), nullptr);
}
static sk_sp<SkImageFilter> make2() {
sk_sp<SkColorFilter> cf(SkColorFilter::MakeModeFilter(SK_ColorBLUE, SkXfermode::kSrcIn_Mode));
return SkColorFilterImageFilter::Make(std::move(cf), nullptr);
}
static sk_sp<SkImageFilter> make3() {
return SkBlurImageFilter::Make(8, 0, nullptr);
}
static sk_sp<SkImageFilter> make4() {
sk_sp<SkImageFilter> outer(SkOffsetImageFilter::Make(SkIntToScalar(16),
SkIntToScalar(16),
nullptr));
sk_sp<SkImageFilter> inner(SkDownSampleImageFilter::Make(SK_Scalar1 / 5, nullptr));
return SkComposeImageFilter::Make(std::move(outer), std::move(inner));
}
static sk_sp<SkImageFilter> make5() {
sk_sp<SkImageFilter> first(SkOffsetImageFilter::Make(SkIntToScalar(16),
SkIntToScalar(16),
nullptr));
sk_sp<SkImageFilter> second(SkDownSampleImageFilter::Make(SK_Scalar1 / 5, nullptr));
return SkMergeImageFilter::Make(std::move(first), std::move(second));
}
static sk_sp<SkImageFilter> make6() {
sk_sp<SkImageFilter> outer(SkOffsetImageFilter::Make(SkIntToScalar(16),
SkIntToScalar(16),
nullptr));
sk_sp<SkImageFilter> inner(SkDownSampleImageFilter::Make(SK_Scalar1 / 5, nullptr));
sk_sp<SkImageFilter> compose(SkComposeImageFilter::Make(std::move(outer), std::move(inner)));
sk_sp<SkColorFilter> cf(SkColorFilter::MakeModeFilter(0x880000FF, SkXfermode::kSrcIn_Mode));
sk_sp<SkImageFilter> blue(SkColorFilterImageFilter::Make(std::move(cf), nullptr));
return SkMergeImageFilter::Make(std::move(compose), std::move(blue));
}
static sk_sp<SkImageFilter> make7() {
sk_sp<SkImageFilter> outer(SkOffsetImageFilter::Make(SkIntToScalar(16),
SkIntToScalar(16),
nullptr));
sk_sp<SkImageFilter> inner(make3());
sk_sp<SkImageFilter> compose(SkComposeImageFilter::Make(std::move(outer), std::move(inner)));
sk_sp<SkColorFilter> cf(SkColorFilter::MakeModeFilter(0x880000FF, SkXfermode::kSrcIn_Mode));
sk_sp<SkImageFilter> blue(SkColorFilterImageFilter::Make(std::move(cf), nullptr));
return SkMergeImageFilter::Make(std::move(compose), std::move(blue));
}
static void draw0(SkCanvas* canvas) {
SkPaint p;
p.setAntiAlias(true);
SkRect r = SkRect::MakeWH(FILTER_WIDTH, FILTER_HEIGHT);
r.inset(SK_Scalar1 * 12, SK_Scalar1 * 12);
p.setColor(SK_ColorRED);
canvas->drawOval(r, p);
}
class TestImageFiltersGM : public skiagm::GM {
public:
TestImageFiltersGM () {}
protected:
SkString onShortName() override {
return SkString("testimagefilters");
}
SkISize onISize() override { return SkISize::Make(700, 460); }
void onDraw(SkCanvas* canvas) override {
// this->drawSizeBounds(canvas, 0xFFCCCCCC);
static sk_sp<SkImageFilter> (*gFilterProc[])() = {
make0, make1, make2, make3, make4, make5, make6, make7
};
const SkRect bounds = SkRect::MakeWH(FILTER_WIDTH, FILTER_HEIGHT);
const SkScalar dx = bounds.width() * 8 / 7;
const SkScalar dy = bounds.height() * 8 / 7;
canvas->translate(SkIntToScalar(8), SkIntToScalar(8));
for (int i = 0; i < (int)SK_ARRAY_COUNT(gFilterProc); ++i) {
int ix = i % 4;
int iy = i / 4;
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(ix * dx, iy * dy);
SkPaint p;
p.setStyle(SkPaint::kStroke_Style);
canvas->drawRect(bounds, p);
SkPaint paint;
paint.setImageFilter(gFilterProc[i]());
canvas->saveLayer(&bounds, &paint);
draw0(canvas);
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new TestImageFiltersGM; )
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