private void UpdateShadeInfo(Shade shade)
{
if (!_weakSource.TryGetTarget(out var source))
{
return;
}
InternalLogger.Debug(LogTag, () => $"UpdateShadeInfo( shade: {shade} )");
_shadeInfos[shade] = ShadeInfo.FromShade(Context, shade, _cornerRadius, source);
}
private void InsertBitmap(Shade shade)
{
if (!_weakSource.TryGetTarget(out var source) || !HasMinimumSize(source))
{
return;
}
#if DEBUG
var stopWatch = new Stopwatch();
stopWatch.Start();
#endif
InternalLogger.Debug(LogTag, () => $"InsertBitmap( shade: {shade}, sourceWidth: {source.MeasuredWidth}, sourceHeight: {source.MeasuredHeight})");
var shadeInfo = ShadeInfo.FromShade(Context, shade, _cornerRadius, source);
_shadeInfos.Add(shade, shadeInfo);
_cache.Add(shadeInfo.Hash, () => CreateBitmap(shadeInfo));
#if DEBUG
LogPerf(LogTag, stopWatch);
#endif
}
private Bitmap CreateBitmap(ShadeInfo shadeInfo)
{
#if DEBUG
var stopWatch = new Stopwatch();
stopWatch.Start();
#endif
var shadow = Bitmap.CreateBitmap(
shadeInfo.Width,
shadeInfo.Height,
Bitmap.Config.Argb8888);
InternalLogger.Debug(LogTag, () => $"CreateBitmap( shadeInfo: {shadeInfo} )");
RectF rect = new RectF(
ShadeInfo.Padding,
ShadeInfo.Padding,
shadeInfo.Width - ShadeInfo.Padding,
shadeInfo.Height - ShadeInfo.Padding);
using var bitmapCanvas = new Canvas(shadow);
using var paint = new Paint { Color = shadeInfo.Color };
bitmapCanvas.DrawRoundRect(
rect,
_cornerRadius,
_cornerRadius,
paint);
if (shadeInfo.BlurRadius < 1)
{
return(shadow);
}
const int MaxBlur = 25;
float blurAmount = shadeInfo.BlurRadius > MaxRadius ? MaxRadius : shadeInfo.BlurRadius;
while (blurAmount > 0)
{
Allocation input = Allocation.CreateFromBitmap(
_renderScript,
shadow,
Allocation.MipmapControl.MipmapNone,
AllocationUsage.Script);
Allocation output = Allocation.CreateTyped(_renderScript, input.Type);
ScriptIntrinsicBlur script = ScriptIntrinsicBlur.Create(_renderScript, Element.U8_4(_renderScript));
float blurRadius;
if (blurAmount > MaxBlur)
{
blurRadius = MaxBlur;
blurAmount -= MaxBlur;
}
else
{
blurRadius = blurAmount;
blurAmount = 0;
}
script.SetRadius(blurRadius);
script.SetInput(input);
script.ForEach(output);
output.CopyTo(shadow);
}
#if DEBUG
LogPerf(LogTag, stopWatch);
#endif
return(shadow);
}
