public VGStencilMasks AddClipping(ushort clipDepth)
{
for (int i = 0, m = (int)VGStencilMasks.Mask1; i < _clipLayers.Length; i++, m <<= 1)
if (_clipLayers[i] == null)
{
_clipLayers[i] = new ClipLayer((VGStencilMasks)m, clipDepth);
_clippingMask |= (VGStencilMasks)m;
return _clipLayers[i].Layer;
}
throw new NotSupportedException("Too much nested clipping characters!");
}
public VGStencilMasks ReleaseClippings(ushort currentDepth)
{
VGStencilMasks mask = VGStencilMasks.None;
if (_clippingMask == VGStencilMasks.None)
return mask;
for (int i = 0; i < _clipLayers.Length; i++)
{
if (_clipLayers[i] == null)
continue;
if (_clipLayers[i].ClipDepth == currentDepth)
{
_clipLayers[i] = null;
continue;
}
mask |= _clipLayers[i].Layer;
}
_clippingMask = mask;
return mask;
}
public ClipLayer(VGStencilMasks layer, ushort clipDepth)
{
Layer = layer;
ClipDepth = clipDepth;
}
public void ResetDefaultValues()
{
PathToSurface.Clear();
ImageToSurface.Clear();
GlyphToSurface.Clear();
PathToFillPaint.Clear();
PathToTextPaint.Clear();
PathToStrokePaint.Clear();
ColorTransformation.Clear();
NonScalingStroke = false;
ColorTransformationEnabled = false;
MaskingEnabled = false;
StrokeThickness = 1f;
StrokeMiterLimit = 4f;
ClearColor = Color.Transparent;
StrokeStartCap = StrokeEndCap = VGLineCap.Butt;
StrokeJoin = VGLineJoin.Miter;
BlendMode = VGBlendMode.SrcOver;
Mask = null;
Font = null;
MaskChannels = Vector4.UnitW;
ColorChannels = ColorWriteChannels.All;
TabSize = Vector2.One;
FillPaint = StrokePaint = GlyphPaint = new VGColorPaint(Device, Color.White);
// Not create states twice
_fillRule = VGFillRule.EvenOdd;
_readMask = VGStencilMasks.None;
WriteStencilMask = VGStencilMasks.None;
}
internal void ClearStencilMasks(VGStencilMasks masks)
{
// Setup stenciling
_device.BlendState = Device.BlendStates.NoColor;
_device.DepthStencilState = StencilStates.ClearMasks(masks);
Device.EffectManager.StencilSolid.Apply(VGMatrix.Identity, VGMatrix.Identity);
// Render mesh
_device.MultiSampleMask = -1;
Vector4 extents = Constants.ScreenExtents * 1.1f;
RenderRectangle(ref extents);
}
public static DSS ClearMasks(VGStencilMasks masks)
{
var dss = Clone(_Clear);
dss.StencilMask = dss.StencilWriteMask = (int)masks;
return dss;
}
public StencilStates(VGStencilMasks writeMask, VGStencilMasks readMask)
{
Set = Clone(_Set);
EvenOdd = Clone(_EvenOdd);
NonZero = Clone(_NonZero);
Cover = Clone(_Cover);
if (writeMask != VGStencilMasks.None)
{
Set.StencilMask = Set.StencilWriteMask = (int)writeMask;
EvenOdd.StencilMask = EvenOdd.StencilWriteMask = (int)writeMask;
NonZero.StencilMask = NonZero.StencilWriteMask = (int)writeMask;
}
if (readMask != VGStencilMasks.None)
Cover.StencilMask |= (int)readMask;
}
