blurroundrect.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkBlurTypes.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkColorFilter.h"
#include "include/core/SkMaskFilter.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkShader.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "src/core/SkBlurMask.h"

Go to the source code of this file.

Classes
class	SimpleBlurRoundRectGM

Functions
static sk_sp< SkShader >	MakeRadial ()
	DEF_SIMPLE_GM (blur_large_rrects, canvas, 300, 300)

Function Documentation

DEF_SIMPLE_GM()

DEF_SIMPLE_GM	(	blur_large_rrects	,
		canvas	,
		300	,
		300
	)

Definition at line 106 of file blurroundrect.cpp.

                                                   {
    SkPaint paint;
    paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 20.f));
 
    auto rect = SkRect::MakeLTRB(5.f, -20000.f, 240.f,  25.f);
    SkRRect rrect = SkRRect::MakeRectXY(rect, 40.f, 40.f);
    for (int i = 0; i < 4; ++i) {
        SkColor4f color{(i & 1) ? 1.f : 0.f,
                        (i & 2) ? 1.f : 0.f,
                        (i < 2) ? 1.f : 0.f,
                        1.f};
        paint.setColor(color);
        canvas->drawRRect(rrect, paint);
        canvas->rotate(90.f, 150.f, 150.f);
    }
}

MakeRadial()

static sk_sp< SkShader > MakeRadial ( )

static

Definition at line 33 of file blurroundrect.cpp.

                                    {
    SkPoint pts[2] = {
        { 0, 0 },
        { SkIntToScalar(100), SkIntToScalar(100) }
    };
    SkTileMode tm = SkTileMode::kClamp;
    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, std::size(colors), tm,
                                                 0, &scale);
}