C++でskiaのSkSurfaceを使用

void Test() {
    // #include "skia/include/core/SkSurface.h"

    SkImageInfo imginfo = SkImageInfo::Make(400, 400, kBGRA_8888_SkColorType, kOpaque_SkAlphaType);
    sk_sp<SkSurface> surface = SkSurfaces::Raster(imginfo);
    SkCanvas* canvas = surface->getCanvas();

    // 図形の描画
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(5);
    paint.setColor(SK_ColorBLUE);
    canvas->clear(SK_ColorWHITE);
    canvas->drawCircle(200, 200, 100, paint);


    // PNG出力
    SkPixmap pixmap;
    if (surface->peekPixels(&pixmap)) {
        SkFILEWStream stream("test_sksurface.png");
        SkPngEncoder::Options options;
        options.fZLibLevel = 9;
        SkPngEncoder::Encode(&stream, pixmap, options);
    }

}