/// <summary>
/// for fill shape
/// </summary>
/// <param name="sclineRas"></param>
/// <param name="scline"></param>
/// <param name="color"></param>
/// <param name="shapeHint"></param>
public void FillWithColor(GLScanlineRasterizer sclineRas,
GLScanline scline,
PixelFarm.Drawing.Color color)
{
//early exit
if (color.A == 0)
{
return;
}
if (!sclineRas.RewindScanlines())
{
return;
}
//-----------------------------------------------
scline.ResetSpans(sclineRas.MinX, sclineRas.MaxX);
//-----------------------------------------------
var lineBuff = this.myLineBuffer;
lineBuff.Clear();
while (sclineRas.SweepScanline(scline))
{
int y = scline.Y;
lineBuff.BeginNewLine(y);
int num_spans = scline.SpanCount;
byte[] covers = scline.GetCovers();
//copy data from scanline to lineBuff
//TODO: move linebuf built into the scanline?
for (int i = 1; i <= num_spans; ++i)
{
ScanlineSpan span = scline.GetSpan(i);
if (span.len > 0)
{
//outline
GLBlendSolidHSpan(span.x, span.len, true, lineBuff, color.A, covers, span.cover_index);
}
else
{
//fill
int x = span.x;
int x2 = (x - span.len - 1);
GLBlendHLine(x, x2, true, lineBuff, color.A, covers[span.cover_index]);
}
}
lineBuff.CloseLine();
}
//----------------------------------
int nelements = myLineBuffer.Count;
if (nelements > 0)
{
this.scanlineShader.AggDrawLines(myLineBuffer, nelements, color);
}
}
/// <summary>
/// for fill shape
/// </summary>
/// <param name="sclineRas"></param>
/// <param name="scline"></param>
/// <param name="color"></param>
/// <param name="shapeHint"></param>
public void FillWithColor(GLScanlineRasterizer sclineRas,
GLScanline scline,
PixelFarm.Drawing.Color color)
{
//early exit
if (color.A == 0)
{
return;
}
if (!sclineRas.RewindScanlines())
{
return;
}
//-----------------------------------------------
scline.ResetSpans(sclineRas.MinX, sclineRas.MaxX);
//-----------------------------------------------
this.mySinglePixelBuffer.Clear();
this.myLineBuffer.Clear();
while (sclineRas.SweepScanline(scline))
{
int y = scline.Y;
int num_spans = scline.SpanCount;
byte[] covers = scline.GetCovers();
for (int i = 1; i <= num_spans; ++i)
{
ScanlineSpan span = scline.GetSpan(i);
if (span.len > 0)
{
//outline
GLBlendSolidHSpan(span.x, y, span.len, color, covers, span.cover_index);
}
else
{
//fill
int x = span.x;
int x2 = (x - span.len - 1);
GLBlendHLine(x, y, x2, color, covers[span.cover_index]);
}
}
}
DrawPointAndLineWithVertices();
}