private void DrawPerformanceStats(ref ImperativeRenderer ir)
{
const float scale = 1f;
var text = PerformanceStats.GetText(this);
using (var buffer = BufferPool <BitmapDrawCall> .Allocate(text.Length)) {
var layout = Font.LayoutString(text, buffer, scale: scale);
var layoutSize = layout.Size;
var position = new Vector2(30f, 30f);
var dc = layout.DrawCalls;
ir.FillRectangle(
Bounds.FromPositionAndSize(position, layoutSize),
Color.Black
);
ir.Layer += 1;
ir.DrawMultiple(dc, position);
}
}
public override void Draw(GameTime gameTime, Frame frame)
{
using (var rtb = BatchGroup.ForRenderTarget(frame, -1, Rt)) {
var ir = new ImperativeRenderer(rtb, Materials);
ir.Clear(color: Color.Transparent);
ir.SetViewport(new Rectangle(128, 128, 256, 256), true);
ir.FillRectangle(new Rectangle(0, 0, 512, 512), Color.Black, customMaterial: Vpos);
}
{
var ir = new ImperativeRenderer(frame, Materials)
{
AutoIncrementLayer = true
};
ir.SetViewport(null, true);
ir.Clear(color: Color.SteelBlue);
const float scale = 0.65f;
var pos = new Vector2(Graphics.PreferredBackBufferWidth, Graphics.PreferredBackBufferHeight) / 2f;
ir.Draw(
Texture, pos, origin: Vector2.One * 0.5f, scale: Vector2.One * scale,
blendState: BlendState.Opaque,
samplerState: SamplerState.LinearClamp
);
ir.DrawString(
Font, "Hello, World!", Vector2.Zero,
blendState: BlendState.AlphaBlend,
material: Materials.ScreenSpaceShadowedBitmap
);
var sg = ir.MakeSubgroup();
sg.AutoIncrementLayer = true;
sg.SetViewport(new Rectangle(128, 128, 512, 512), true);
sg.FillRectangle(new Rectangle(0, 0, 1024, 1024), Color.Black, customMaterial: Vpos);
sg.SetViewport(null, true);
ir.Draw(
Rt, new Vector2(1920 - 512, 0)
);
}
}
private void NestedContextPassTeardown(
ref UIOperationContext context, ref DecorationSettings settings, IDecorator decorations,
ref RasterizePassSet passSet, ref ImperativeRenderer contentRenderer, ref UIOperationContext contentContext,
int previousStackDepth
)
{
// If this is the first stencil pass instead of a nested one, clear the stencil buffer
if (passSet.StackDepth < 1)
{
contentRenderer.Clear(stencil: 0, layer: -9999);
}
else
{
// Erase any siblings' clip regions
contentRenderer.DepthStencilState = context.UIContext.GetStencilRestore(previousStackDepth);
contentRenderer.FillRectangle(new Rectangle(-1, -1, 9999, 9999), Color.Transparent, blendState: RenderStates.DrawNone, layer: -1000);
}
contentRenderer.DepthStencilState = context.UIContext.GetStencilWrite(previousStackDepth);
// FIXME: Separate context?
contentContext.Pass = RasterizePasses.ContentClip;
// FIXME
var temp = settings;
ApplyClipMargins(ref contentContext, ref temp.Box);
var crLayer = contentRenderer.Layer;
contentRenderer.Layer = -999;
settings.State = default(ControlStates);
decorations?.Rasterize(ref contentContext, ref contentRenderer, temp);
contentRenderer.Layer = crLayer;
// passSet.NextReferenceStencil = childrenPassSet.NextReferenceStencil;
}