imagefiltersscaled.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageFilter.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkPoint3.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/SkSurface.h"
#include "include/core/SkTileMode.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkGradientShader.h"
#include "include/effects/SkImageFilters.h"
#include "include/effects/SkPerlinNoiseShader.h"
#include "tools/ToolUtils.h"
#include <utility>

Go to the source code of this file.

Classes
class	skiagm::ImageFiltersScaledGM

Namespaces
namespace	skiagm

Macros
#define	RESIZE_FACTOR   SkIntToScalar(4)

Functions
static sk_sp< SkImage >	make_gradient_circle (int width, int height)

Macro Definition Documentation

RESIZE_FACTOR

#define RESIZE_FACTOR   SkIntToScalar(4)

Definition at line 34 of file imagefiltersscaled.cpp.

Function Documentation

make_gradient_circle()

static sk_sp< SkImage > make_gradient_circle ( int  width, int  height  )

static

Definition at line 36 of file imagefiltersscaled.cpp.

                                                                  {
    SkScalar x = SkIntToScalar(width / 2);
    SkScalar y = SkIntToScalar(height / 2);
    SkScalar radius = std::min(x, y) * 4 / 5;
    sk_sp<SkSurface> surface(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(width, height)));
    SkCanvas* canvas = surface->getCanvas();
    canvas->clear(0x00000000);
    SkColor colors[2];
    colors[0] = SK_ColorWHITE;
    colors[1] = SK_ColorBLACK;
    SkPaint paint;
    paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr,
        2, SkTileMode::kClamp));
    canvas->drawCircle(x, y, radius, paint);
 
    return surface->makeImageSnapshot();
}