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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)
: fName("blurroundrect"), fWidth(width), fHeight(height) {
fName.appendf("-WH-%ix%i-unevenCorners", width, height);
}
SkString onShortName() override {
return fName;
}
SkISize onISize() override {
return SkISize::Make(fWidth, fHeight);
}
void onOnceBeforeDraw() override {
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(fWidth), SkIntToScalar(fHeight));
fRRect.setRectRadii(r, radii);
}
void onDraw(SkCanvas* canvas) 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);
paint->setMaskFilter(SkBlurMaskFilter::Make(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf),
SkBlurMaskFilter::kHighQuality_BlurFlag));
paint->setColorFilter(SkColorFilter::MakeModeFilter(
sk_tool_utils::color_to_565(SK_ColorLTGRAY),
SkXfermode::kSrcIn_Mode));
paint->setColor(sk_tool_utils::color_to_565(SK_ColorGRAY));
}
{
SkLayerDrawLooper::LayerInfo info;
looperBuilder.addLayerOnTop(info);
}
SkPaint paint;
canvas->drawRect(fRRect.rect(), paint);
paint.setLooper(looperBuilder.detach());
paint.setColor(SK_ColorCYAN);
paint.setAntiAlias(true);
canvas->drawRRect(fRRect, paint);
}
private:
SkString fName;
SkRRect fRRect;
int fWidth, fHeight;
typedef skiagm::GM INHERITED;
};
#include "SkGradientShader.h"
/*
* Spits out a dummy gradient to test blur with shader on paint
*/
static sk_sp<SkShader> MakeRadial() {
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, };
const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
SkMatrix scale;
scale.setScale(0.5f, 0.5f);
scale.postTranslate(5.f, 5.f);
SkPoint center0, center1;
center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
SkScalarAve(pts[0].fY, pts[1].fY));
center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5),
SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4));
return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7,
center0, (pts[1].fX - pts[0].fX) / 2,
colors, pos, SK_ARRAY_COUNT(colors), tm,
0, &scale);
}
// Simpler blurred RR test cases where all the radii are the same.
class SimpleBlurRoundRectGM : public skiagm::GM {
public:
SimpleBlurRoundRectGM()
: fName("simpleblurroundrect") {
}
protected:
SkString onShortName() override {
return fName;
}
SkISize onISize() override {
return SkISize::Make(1000, 500);
}
void onDraw(SkCanvas* canvas) override {
canvas->scale(1.5f, 1.5f);
canvas->translate(50,50);
const float blurRadii[] = { 1,5,10,20 };
const int cornerRadii[] = { 1,5,10,20 };
const SkRect r = SkRect::MakeWH(SkIntToScalar(25), SkIntToScalar(25));
for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) {
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(0, (r.height() + SkIntToScalar(50)) * i);
for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) {
for (int k = 0; k <= 1; k++) {
SkPaint paint;
paint.setColor(SK_ColorBLACK);
paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])),
SkBlurMaskFilter::kHighQuality_BlurFlag));
bool useRadial = SkToBool(k);
if (useRadial) {
paint.setShader(MakeRadial());
}
SkRRect rrect;
rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]),
SkIntToScalar(cornerRadii[j]));
canvas->drawRRect(rrect, paint);
canvas->translate(r.width() + SkIntToScalar(50), 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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