protected override void SkiaRender()
{
var inputs = new SKRuntimeEffectInputs(_runtimeEffect);
if (inputs.Contains("iTime"))
{
inputs.Set("iTime", (float)_st.Elapsed.TotalSeconds * 5);
}
if (inputs.Contains("iResolution"))
{
inputs.Set("iResolution", new float[]
{
Size.X,
Size.Y,
0
});
}
using (var shader = _runtimeEffect.ToShader(inputs, false))
using (var paint = new SKPaint
{
Shader = shader
})
{
Canvas.Save();
//Canvas.Translate(MousePosition.X, Size.Y - MousePosition.Y);
//Canvas.DrawCircle(0, 0, 50, paint);
//Canvas.DrawCircle(MousePosition.X,Size.Y - MousePosition.Y, 50, paint);
//Canvas.Restore();
Canvas.DrawRect(0, 0, Size.X, Size.Y, paint);
/*
* Canvas.DrawRect(0, 0, Size.X/3, Size.Y, paint);
* Canvas.DrawRect(Size.X/3*2, 0, Size.X/3, Size.Y, paint);*/
}
}
public void Test(SKSurface surface, SKImageInfo info, SKColor[] expected, Action <SKCanvas, SKPaint> preTestCallback = null)
{
using var shader = effect.ToShader(false, uniforms, children);
Assert.NotNull(shader);
using var paint = new SKPaint
{
Shader = shader,
BlendMode = SKBlendMode.Src
};
preTestCallback?.Invoke(surface.Canvas, paint);
surface.Canvas.DrawPaint(paint);
var actual = new SKColor[4];
fixed(void *a = actual)
{
Assert.True(surface.ReadPixels(info, (IntPtr)a, info.RowBytes, 0, 0));
}
Assert.Equal(expected, actual);
}