Main
Named Fiddles
Skia Fiddle
Skia Version:
2eb4bd
void draw(SkCanvas* canvas) { SkBitmap alpha, bitmap; bitmap.allocN32Pixels(100, 100); SkCanvas offscreen(bitmap); offscreen.clear(0); SkPaint paint; paint.setAntiAlias(true); paint.setColor(SK_ColorBLUE); paint.setStyle(SkPaint::kStroke_Style); paint.setStrokeWidth(20); offscreen.drawCircle(50, 50, 39, paint); offscreen.flush(); paint.setMaskFilter(SkMaskFilter::MakeBlur(kOuter_SkBlurStyle, 3)); SkIPoint offset; bitmap.extractAlpha(&alpha, &paint, nullptr, &offset); paint.setColor(SK_ColorRED); canvas->drawBitmap(bitmap, 0, -offset.fY, &paint); canvas->drawBitmap(alpha, 100 + offset.fX, 0, &paint); }
Skia API Documentation