private static void setMaskingInfo(MaskingInfo maskingInfo, bool isPushing, bool overwritePreviousScissor)
{
FlushCurrentBatch();
GlobalPropertyManager.Set(GlobalProperty.MaskingRect, new Vector4(
maskingInfo.MaskingRect.Left,
maskingInfo.MaskingRect.Top,
maskingInfo.MaskingRect.Right,
maskingInfo.MaskingRect.Bottom));
GlobalPropertyManager.Set(GlobalProperty.ToMaskingSpace, maskingInfo.ToMaskingSpace);
GlobalPropertyManager.Set(GlobalProperty.CornerRadius, maskingInfo.CornerRadius);
GlobalPropertyManager.Set(GlobalProperty.CornerExponent, maskingInfo.CornerExponent);
GlobalPropertyManager.Set(GlobalProperty.BorderThickness, maskingInfo.BorderThickness / maskingInfo.BlendRange);
if (maskingInfo.BorderThickness > 0)
{
GlobalPropertyManager.Set(GlobalProperty.BorderColour, new Vector4(
maskingInfo.BorderColour.Linear.R,
maskingInfo.BorderColour.Linear.G,
maskingInfo.BorderColour.Linear.B,
maskingInfo.BorderColour.Linear.A));
}
GlobalPropertyManager.Set(GlobalProperty.MaskingBlendRange, maskingInfo.BlendRange);
GlobalPropertyManager.Set(GlobalProperty.AlphaExponent, maskingInfo.AlphaExponent);
GlobalPropertyManager.Set(GlobalProperty.EdgeOffset, maskingInfo.EdgeOffset);
GlobalPropertyManager.Set(GlobalProperty.DiscardInner, maskingInfo.Hollow);
if (maskingInfo.Hollow)
{
GlobalPropertyManager.Set(GlobalProperty.InnerCornerRadius, maskingInfo.HollowCornerRadius);
}
if (isPushing)
{
// When drawing to a viewport that doesn't match the projection size (e.g. via framebuffers), the resultant image will be scaled
Vector2 viewportScale = Vector2.Divide(Viewport.Size, Ortho.Size);
Vector2 location = (maskingInfo.ScreenSpaceAABB.Location - ScissorOffset) * viewportScale;
Vector2 size = maskingInfo.ScreenSpaceAABB.Size * viewportScale;
RectangleI actualRect = new RectangleI(
(int)Math.Floor(location.X),
(int)Math.Floor(location.Y),
(int)Math.Ceiling(size.X),
(int)Math.Ceiling(size.Y));
PushScissor(overwritePreviousScissor ? actualRect : RectangleI.Intersect(scissor_rect_stack.Peek(), actualRect));
}
else
{
PopScissor();
}
}
/// <summary>
/// Applies a new scissor rectangle.
/// </summary>
/// <param name="maskingInfo">The masking info.</param>
/// <param name="overwritePreviousScissor">Whether or not to shrink an existing scissor rectangle.</param>
public static void PushMaskingInfo(MaskingInfo maskingInfo, bool overwritePreviousScissor = false)
{
masking_stack.Push(maskingInfo);
if (CurrentMaskingInfo.Equals(maskingInfo))
{
return;
}
CurrentMaskingInfo = maskingInfo;
setMaskingInfo(CurrentMaskingInfo, true, overwritePreviousScissor);
}
/// <summary>
/// Applies the last scissor rectangle.
/// </summary>
public static void PopMaskingInfo()
{
Trace.Assert(masking_stack.Count > 1);
masking_stack.Pop();
MaskingInfo maskingInfo = masking_stack.Peek();
if (CurrentMaskingInfo.Equals(maskingInfo))
{
return;
}
CurrentMaskingInfo = maskingInfo;
setMaskingInfo(CurrentMaskingInfo, false, true);
}
