Skia Fiddle

Options

Width Height

check_box_outline_blank check_box Text Only [Use SkDebugf()]

check_box_outline_blank check_box sRGB

check_box_outline_blank check_box F16

check_box_outline_blank check_box Animation

check_box_outline_blank check_box Offscreen Render Target

Width Height Sample Count

check_box_outline_blank check_box Texturable

check_box_outline_blank check_box MipMap

This global is now defined:

GrBackendRenderTarget backEndRenderTarget;

GrBackendTexture backEndTextureRenderTarget;

Optional source image

check_box_outline_blank check_box MipMap

These globals are now defined:

SkBitmap source;
sk_sp<SkImage> image;
GrBackendTexture backEndTexture; // GPU Only.

Note:

Adding comments with SK_FOLD_START and SK_FOLD_END creates foldable code blocks.
These blocks will be folded by default and are useful for highlighting specific lines of code.
You can also use the keyboard shortcuts Ctrl+S and Ctrl+E in the code editor to set them.

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typedef struct Point {
    double x;
    double y;
} Point;
​
typedef struct Circle {
    Point center;
    double radius;
} Circle;
​
​
​
// a recursing circle drawing
void drawCircle(Circle c,SkCanvas *canvas, SkPaint paint) {
​
    canvas->drawCircle(c.center.x, c.center.y, c.radius, paint);
​
  
    if(c.radius > 32) {
      
        Circle
        c1 = {.center = {
                .x = c.center.x + c.radius/2, 
                .y = c.center.y}, 
              .radius = c.radius/2},
        c2 = {.center = {
                .x = c.center.x - c.radius/2, 
                .y = c.center.y}, 
              .radius = c.radius/2}, 
        c3 ={.center = {
                .x = c.center.x, 
                .y = c.center.y + c.radius/2}, 
             .radius = c.radius/2},
        c4 ={.center = {
                .x = c.center.x, 
                .y = c.center.y - c.radius/2}, 
             .radius = c.radius/2};
      
        drawCircle(c1, canvas, paint);
        drawCircle(c2, canvas, paint);
        drawCircle(c3, canvas, paint);
        drawCircle(c4, canvas, paint);
    }
    
}
​
​
​
​
​
void draw(SkCanvas* canvas) {
    canvas->drawColor(SK_ColorWHITE);
​
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(1);
    paint.setColor(0xff4285F4);
    paint.setAntiAlias(true);
    paint.setStrokeCap(SkPaint::kRound_Cap);
    
    Circle c = { 
      .center = { .x = 500, .y = 500},
      .radius = 200
    };
    drawCircle(c, canvas, paint);
}