public void Render(List <PrimitiveInfo> commands, IProxyDrawingContext dc)
{
Toolbox.EmitEvent(EventTrace.Event.WClientDRXRasterStart);
int width = (int)Math.Round(m_bounds.Width * Configuration.RasterizationDPI / 96);
int height = (int)Math.Round(m_bounds.Height * Configuration.RasterizationDPI / 96);
if ((width >= 1) && (height >= 1)) // Skip shape which is too small
{
Matrix mat = Utility.CreateMappingTransform(m_bounds, width, height);
RenderTargetBitmap brushImage = new RenderTargetBitmap(width, height, 96, 96, PixelFormats.Pbgra32);
DrawingVisual visual = new DrawingVisual();
// clip image to the primitives it contains
Geometry clip = null;
using (DrawingContext ctx = visual.RenderOpen())
{
ctx.PushTransform(new MatrixTransform(mat));
m_primitives.Sort();
foreach (int i in m_primitives)
{
Primitive primitive = commands[i].primitive;
// Fix bug 1396393: Can't use AddToCluster without fixing that bug.
// We need to clip cluster to primitives in case primitives have clipping.
Debug.Assert(GetPrimitiveIntersectAction() == PrimitiveIntersectAction.ClipToCluster);
bool empty;
Geometry geometry = Utility.Intersect(primitive.GetShapeGeometry(), primitive.Clip, Matrix.Identity, out empty);
if (!empty)
{
primitive.OnRender(ctx);
// clip cluster to this clipped primitive. we must have geometry information,
// otherwise the primitive will be clipped away.
Debug.Assert(geometry != null, "No geometry available for primitive");
if (clip == null)
{
clip = geometry;
}
else
{
CombinedGeometry cg = new CombinedGeometry();
// Opt-out of inheritance through the new Freezable.
cg.CanBeInheritanceContext = false;
cg.GeometryCombineMode = GeometryCombineMode.Union;
cg.Geometry1 = clip;
cg.Geometry2 = geometry;
clip = cg;
}
}
commands[i] = null; // Command can be deleted after cluster is rendered
}
ctx.Pop();
}
brushImage.Render(visual);
Toolbox.EmitEvent(EventTrace.Event.WClientDRXRasterEnd);
dc.DrawImage(new ImageProxy(brushImage), m_bounds, clip, Matrix.Identity);
}
}
/// <summary>
/// Resolve object overlapping in a primitive tree.
/// Send broken down drawing primitives to _dc.
/// </summary>
/// <param name="dc"></param>
/// <param name="disjoint">True if all output primitives need to be disjoint</param>
public void AlphaFlatten(IProxyDrawingContext dc, bool disjoint)
{
List <PrimitiveInfo> commands = _dl.Commands;
if (commands == null)
{
return;
}
int count = commands.Count;
_dc = dc;
bool needFlattening = true;
if (Configuration.BlendAlphaWithWhite || Configuration.ForceAlphaOpaque)
{
needFlattening = false;
}
else if (!disjoint)
{
needFlattening = false;
for (int i = 0; i < count; i++)
{
PrimitiveInfo info = commands[i];
if (!info.primitive.IsOpaque)
{
needFlattening = true;
break;
}
}
}
if (needFlattening)
{
#if DEBUG
Console.WriteLine();
Console.WriteLine("Stage 2: Calculating intersections using bounding boxes");
Console.WriteLine();
#endif
// Still need all the primitive, for removal by opaque covering and white primitive removal
_dl.CalculateIntersections(count);
}
#if DEBUG
if (Configuration.Verbose >= 2)
{
Console.WriteLine();
Console.WriteLine("Original display list");
Console.WriteLine();
DisplayList.PrintPrimitive(null, -1, true);
for (int i = 0; i < count; i++)
{
DisplayList.PrintPrimitive(commands[i], i, true);
}
Console.WriteLine();
Console.WriteLine("Primitives in display list: {0}", count);
Console.WriteLine();
}
#endif
if (needFlattening)
{
DisplayListOptimization(commands, count, disjoint);
}
#if DEBUG
for (int i = 0; i < count; i++)
{
if (commands[i] != null)
{
commands[i].SetID(i);
}
}
Console.WriteLine();
Console.WriteLine("Stage 4: Alpha flattening");
Console.WriteLine();
#endif
for (int i = 0; i < count; i++)
{
PrimitiveInfo info = commands[i];
if (info == null)
{
continue;
}
String desp = null;
#if DEBUG
if (Configuration.Verbose >= 2)
{
Console.Write(i);
Console.Write(": ");
}
desp = info.id;
#endif
if (info.m_cluster != null)
{
info.m_cluster.Render(commands, dc);
}
else
{
AlphaRender(info.primitive, info.overlap, info.overlapHasTransparency, disjoint, desp);
}
#if DEBUG
if (Configuration.Verbose >= 2)
{
Console.WriteLine("");
}
#endif
}
_dc = null;
}
