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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 SkImageFilter* make0() { return SkDownSampleImageFilter::Create(SK_Scalar1 / 5); }
static SkImageFilter* make1() { return SkOffsetImageFilter::Create(SkIntToScalar(16), SkIntToScalar(16)); }
static SkImageFilter* make2() {
SkColorFilter* cf = SkColorFilter::CreateModeFilter(SK_ColorBLUE,
SkXfermode::kSrcIn_Mode);
SkAutoUnref aur(cf);
return SkColorFilterImageFilter::Create(cf);
}
static SkImageFilter* make3() {
return SkBlurImageFilter::Create(8, 0);
}
static SkImageFilter* make4() {
SkImageFilter* outer = SkOffsetImageFilter::Create(SkIntToScalar(16), SkIntToScalar(16));
SkImageFilter* inner = SkDownSampleImageFilter::Create(SK_Scalar1 / 5);
SkAutoUnref aur0(outer);
SkAutoUnref aur1(inner);
return SkComposeImageFilter::Create(outer, inner);
}
static SkImageFilter* make5() {
SkImageFilter* first = SkOffsetImageFilter::Create(SkIntToScalar(16), SkIntToScalar(16));
SkImageFilter* second = SkDownSampleImageFilter::Create(SK_Scalar1 / 5);
SkAutoUnref aur0(first);
SkAutoUnref aur1(second);
return SkMergeImageFilter::Create(first, second);
}
static SkImageFilter* make6() {
SkImageFilter* outer = SkOffsetImageFilter::Create(SkIntToScalar(16), SkIntToScalar(16));
SkImageFilter* inner = SkDownSampleImageFilter::Create(SK_Scalar1 / 5);
SkAutoUnref aur0(outer);
SkAutoUnref aur1(inner);
SkImageFilter* compose = SkComposeImageFilter::Create(outer, inner);
SkAutoUnref aur2(compose);
SkColorFilter* cf = SkColorFilter::CreateModeFilter(0x880000FF,
SkXfermode::kSrcIn_Mode);
SkAutoUnref aur3(cf);
SkImageFilter* blue = SkColorFilterImageFilter::Create(cf);
SkAutoUnref aur4(blue);
return SkMergeImageFilter::Create(compose, blue);
}
static SkImageFilter* make7() {
SkImageFilter* outer = SkOffsetImageFilter::Create(SkIntToScalar(16), SkIntToScalar(16));
SkImageFilter* inner = make3();
SkAutoUnref aur0(outer);
SkAutoUnref aur1(inner);
SkImageFilter* compose = SkComposeImageFilter::Create(outer, inner);
SkAutoUnref aur2(compose);
SkColorFilter* cf = SkColorFilter::CreateModeFilter(0x880000FF,
SkXfermode::kSrcIn_Mode);
SkAutoUnref aur3(cf);
SkImageFilter* blue = SkColorFilterImageFilter::Create(cf);
SkAutoUnref aur4(blue);
return SkMergeImageFilter::Create(compose, 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 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]())->unref();
canvas->saveLayer(&bounds, &paint);
draw0(canvas);
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new TestImageFiltersGM; )
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