public float[] GetSmoothBorders()
{
if (smoothBorderTess == null)
{
return(smoothBorderTess = SmoothBorderBuilder.BuildSmoothBorders(coordXYs, out borderTriangleStripCount));
}
return(smoothBorderTess);
}
internal void CreateSmoothBorderTessSegment(VBOStream ownerVBOStream,
SmoothBorderBuilder smoothBorderBuilder)
{
//
float[] smoothBorderTess = GetSmoothBorders(smoothBorderBuilder);
_smoothBorderVboSeg = ownerVBOStream.CreateSegment(smoothBorderTess, BorderTriangleStripCount, 4);
//
}
int _borderTriangleStripCount; //for smoothborder
public float[] GetSmoothBorders(SmoothBorderBuilder smoothBorderBuilder)
{
//return existing result if not null
//or create a newone if the old result is not exist
return(_smoothBorderTess ??
(_smoothBorderTess =
smoothBorderBuilder.BuildSmoothBorders(_figures, IsClosedFigure, out _borderTriangleStripCount)));
}
internal void CreateGraphicsPathForMultiPartRenderVx(
MultiPartPolygon multipartPolygon,
MultiPartTessResult multipartTessResult,
TessTool tessTool,
SmoothBorderBuilder borderBuilder)
{
//a multipart polygon contains a list of expand coord (x,y) set.
List <float[]> expandCoordsList = multipartPolygon.expandCoordsList;
List <int[]> endPointList = multipartPolygon.contourEndPoints;
int listCount = expandCoordsList.Count;
for (int i = 0; i < listCount; ++i)
{
//expand x,y
float[] expandCoords = expandCoordsList[i];
int[] endPoints = endPointList[i];
//area
int localVertexCount;
tessTool.TessAndAddToMultiPartResult(expandCoords,
endPoints,
multipartTessResult,
out localVertexCount);
//borders
//build smooth border
int m = endPoints.Length;
int latest_endPoint = 0;
multipartTessResult.BeginBorderPart();
for (int n = 0; n < m; ++n)
{
int endPoint = endPoints[n]; //'x' , not include 'y'
int len = (endPoint - latest_endPoint) + 1; //so len we add +1 for 'y'
int borderTriangleStripCount;
//expand coords for draw array
float[] smoothBorderXYs = borderBuilder.BuildSmoothBorders(expandCoords, latest_endPoint, len, out borderTriangleStripCount);
latest_endPoint += len + 2;
multipartTessResult.AddSmoothBorders(smoothBorderXYs, borderTriangleStripCount);
}
multipartTessResult.EndBorderPart();
}
}
//-------------------------------------------------------------------------------
public void DrawRect(float x, float y, float w, float h)
{
switch (this.SmoothMode)
{
case CanvasSmoothMode.Smooth:
{
int borderTriAngleCount;
float[] triangles = SmoothBorderBuilder.BuildSmoothBorders(
CreatePolyLineRectCoords(x, y, w, h), out borderTriAngleCount);
smoothLineShader.DrawTriangleStrips(triangles, borderTriAngleCount);
}
break;
default:
{
}
break;
}
}
//
//----------------------------------------------------
//
internal float[] GetSmoothBorders(SmoothBorderBuilder smoothBorderBuilder)
{
return((_figure != null) ?
_figure.GetSmoothBorders(smoothBorderBuilder) :
_figures.GetSmoothBorders(smoothBorderBuilder));
}