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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 "gm.h"
#include "SkBlurMask.h"
#include "SkBlurMaskFilter.h"
#include "SkCanvas.h"
#include "SkColorFilter.h"
#include "SkLayerDrawLooper.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkPoint.h"
#include "SkRect.h"
#include "SkRRect.h"
#include "SkString.h"
#include "SkXfermode.h"
// This GM mimics a blurred RR seen in the wild.
class BlurRoundRectGM : public skiagm::GM {
public:
BlurRoundRectGM(int width, int height, int radius)
: fName("blurroundrect")
{
SkRect r = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
fRRect.setRectXY(r, SkIntToScalar(radius), SkIntToScalar(radius));
fName.appendf("-WH[%ix%i]-corner[%i]", width, height, radius);
}
BlurRoundRectGM(int width, int height)
: fName("blurroundrect") {
fName.appendf("-WH[%ix%i]-unevenCorners",
width, height);
SkVector radii[4];
radii[0].set(SkIntToScalar(30), SkIntToScalar(30));
radii[1].set(SkIntToScalar(10), SkIntToScalar(10));
radii[2].set(SkIntToScalar(30), SkIntToScalar(30));
radii[3].set(SkIntToScalar(10), SkIntToScalar(10));
SkRect r = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
fRRect.setRectRadii(r, radii);
}
virtual SkString onShortName() SK_OVERRIDE {
return fName;
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(SkScalarCeilToInt(fRRect.rect().width()),
SkScalarCeilToInt(fRRect.rect().height()));
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkLayerDrawLooper::Builder looperBuilder;
{
SkLayerDrawLooper::LayerInfo info;
info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit
| SkLayerDrawLooper::kColorFilter_Bit;
info.fColorMode = SkXfermode::kSrc_Mode;
info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0));
info.fPostTranslate = false;
SkPaint* paint = looperBuilder.addLayerOnTop(info);
SkMaskFilter* maskFilter = SkBlurMaskFilter::Create(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf),
SkBlurMaskFilter::kHighQuality_BlurFlag);
paint->setMaskFilter(maskFilter)->unref();
SkColorFilter* colorFilter = SkColorFilter::CreateModeFilter(SK_ColorLTGRAY,
SkXfermode::kSrcIn_Mode);
paint->setColorFilter(colorFilter)->unref();
paint->setColor(SK_ColorGRAY);
}
{
SkLayerDrawLooper::LayerInfo info;
looperBuilder.addLayerOnTop(info);
}
SkPaint paint;
canvas->drawRect(fRRect.rect(), paint);
paint.setLooper(looperBuilder.detachLooper())->unref();
paint.setColor(SK_ColorCYAN);
paint.setAntiAlias(true);
canvas->drawRRect(fRRect, paint);
}
private:
SkString fName;
SkRRect fRRect;
typedef skiagm::GM INHERITED;
};
// Simpler blurred RR test cases where all the radii are the same.
class SimpleBlurRoundRectGM : public skiagm::GM {
public:
SimpleBlurRoundRectGM()
: fName("simpleblurroundrect") {
}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return fName;
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(750, 750);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
canvas->scale(1.5f, 1.5f);
const int blurRadii[] = { 1, 3, 6, 10 };
const int cornerRadii[] = { 1, 3, 6, 10 };
const SkRect r = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100));
for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) {
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(0, (r.height() + SkIntToScalar(20)) * i);
for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) {
SkMaskFilter* filter = SkBlurMaskFilter::Create(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])));
SkPaint paint;
paint.setColor(SK_ColorBLUE);
paint.setMaskFilter(filter)->unref();
SkRRect rrect;
rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]), SkIntToScalar(cornerRadii[j]));
canvas->drawRRect(rrect, paint);
canvas->translate(r.width() + SkIntToScalar(10), 0);
}
}
}
private:
const SkString fName;
typedef skiagm::GM INHERITED;
};
// Create one with dimensions/rounded corners based on the skp
//
// TODO(scroggo): Disabled in an attempt to rememdy
// https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs:
// ran wrong number of tests')
//DEF_GM(return new BlurRoundRectGM(600, 5514, 6);)
// Rounded rect with two opposite corners with large radii, the other two
// small.
DEF_GM(return new BlurRoundRectGM(100, 100);)
DEF_GM(return new SimpleBlurRoundRectGM();)
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