public RenderContext(SVGSVGElement drawing)
{
Drawing = drawing;
// Create the tex too:
Filter = new Loonim.SurfaceTexture();
// Create the draw surface:
DrawInfo = new Loonim.DrawInfo();
}
/// <summary>Sets a filter to apply. This is what rasterising elements is all for!</summary>
public void SetFilter(Loonim.SurfaceTexture tex)
{
if (Renderer == null)
{
// We've now got a filter waiting for the renderer:
PendingFilter = tex;
}
else
{
// Setting the filter will typically trigger an imagechange event.
// That then updates the material image.
Renderer.Filter = tex;
}
}
/// <summary>Connects a filter to the camera's output.
/// Fires an imagechange event too as this updates Texture to the filtered version.</summary>
private void ConnectFilter()
{
if (Filter_ != null)
{
if (FilterDrawInfo == null)
{
FilterDrawInfo = new Loonim.DrawInfo();
}
// Update draw info:
FilterDrawInfo.SetSize(pixelWidth, pixelHeight);
// Update source:
Filter_.Set("source0", SourceCamera.targetTexture);
// Reallocate the filter:
Filter_.PreAllocate(FilterDrawInfo);
// Grab the main output (always a RT):
Texture = Filter_.Texture as RenderTexture;
if (Texture == null)
{
// This isn't a valid filter!
// It either had no nodes or e.g. e.g. a solid colour.
Debug.Log("Invalid filter was set to a FlatWorldUI - removed it.");
Filter_ = null;
}
}
if (Filter_ == null)
{
// Clear draw info:
FilterDrawInfo = null;
// Revert to the camera's output:
Texture = SourceCamera.targetTexture;
}
// Fire an imagechange event into the window:
Dom.Event e = new Dom.Event("imagechange");
e.SetTrusted(false);
document.window.dispatchEvent(e);
}
/// <summary>Sets a filter to apply. This is what rasterising elements is all for!</summary>
public void SetFilter(Loonim.SurfaceTexture tex)
{
Filter = tex;
if (tex == null)
{
if (FilterDrawInfo != null)
{
// Tidy it up:
tex.Clear();
FilterDrawInfo = null;
}
if (Renderer != null)
{
// Update it now:
Output = Renderer.Texture;
if (Material != null)
{
// Hook up the output:
Material.SetTexture("_MainTex", Output);
}
}
}
else
{
// Create the draw info (for GPU mode):
FilterDrawInfo = new Loonim.DrawInfo();
if (Renderer != null)
{
// Update it now:
Filter.Set("source0", Renderer.Texture);
// Note that the next draw will update Output for us.
}
}
}
internal override void Layout(LayoutBox box, Renderman renderer)
{
// Dimensions:
float width = box.Width;
float height = box.Height;
if (Renderer == null)
{
// Create the FWUI now:
Renderer = new FlatWorldUI("#Internal-PowerUI-Raster-" + RasterID, (int)width, (int)height);
Renderer.Renderer.AllowLayout = false;
RasterID++;
// Add the listener:
Renderer.document.window.addEventListener("imagechange", delegate(Dom.Event ev){
ChangedOutputEvent(ev);
});
if (PendingFilter != null)
{
// Setting the filter will cause an imagechange event anyway:
Renderer.Filter = PendingFilter;
PendingFilter = null;
}
else
{
// Invoke our change event now:
Dom.Event e = new Dom.Event("imagechange");
e.SetTrusted(false);
ChangedOutputEvent(e);
}
}
// Does the given renderer belong to the worldUI?
if (renderer == Renderer.Renderer)
{
// Yes! We're actually drawing the element.
return;
}
// Next we'll draw the rastered image.
// It's essentially just the output from the renderer.
// Get the top left inner corner (inside margin and border):
float top = box.Y;
float left = box.X;
// Update the FlatWorldUI next:
UpdateRenderer(box, width, height);
// Always isolated:
Isolate();
// Make sure the renderer stalls and doesn't draw anything else of this element or its kids.
renderer.StallStatus = 2;
// Setup boundary:
BoxRegion boundary = new BoxRegion(left, top, width, height);
if (!boundary.Overlaps(renderer.ClippingBoundary))
{
if (Visible)
{
SetVisibility(false);
}
return;
}
else if (!Visible)
{
// ImageLocation will allocate here if it's needed.
SetVisibility(true);
}
// Texture time - get its location on that atlas:
if (LocatedAt == null)
{
LocatedAt = new AtlasLocation(width, height);
}
else
{
// Dimensions changed?
int w = (int)width;
int h = (int)height;
if (LocatedAt.Width != w || LocatedAt.Height != h)
{
// Update it:
LocatedAt.UpdateFixed(width, height);
}
}
boundary.ClipBy(renderer.ClippingBoundary);
// Ensure we have a batch:
renderer.SetupBatch(this, null, null);
if (Material == null)
{
// Create the material now using the isolated shader:
Material = new Material(renderer.CurrentShaderSet.Isolated);
// Hook up the output:
Material.SetTexture("_MainTex", Output);
}
// Allocate the block:
MeshBlock block = Add(renderer);
// Set current material:
SetBatchMaterial(renderer, Material);
// Set the (overlay) colour:
block.SetColour(renderer.ColorOverlay);
block.TextUV = null;
// Z-index (same as a background-image):
float zIndex = (RenderData.computedStyle.ZIndex - 0.003f);
BoxRegion screenRegion = new BoxRegion();
screenRegion.Set(left, top, width, height);
// Setup the block:
block.ImageUV = block.SetClipped(boundary, screenRegion, renderer, zIndex, LocatedAt, block.ImageUV);
// Flush it:
block.Done(renderer.Transform);
}
