engine: materialize live ADV glyphs

2026-07-30 19:04:22 -04:00
parent c2b72cd4b9
commit 1367563485
15 changed files with 758 additions and 27 deletions
--- a/engine/Age.Engine.Tests/RetainedAdvTextLayoutPresentationTests.cs
+++ b/engine/Age.Engine.Tests/RetainedAdvTextLayoutPresentationTests.cs
@@ -0,0 +1,116 @@
+using Age.Engine.Model;
+using Age.Engine.Text;
+
+public class RetainedAdvTextLayoutPresentationTests
+{
+    [Fact]
+    public void PublishesNativeRectsInHandleOrderAndStopsAtCapacity()
+    {
+        var binding = new AdvTextLayoutPresentationBinding(
+            1, 21, 100, 2, 900, 10, 20);
+        var presentation = new RetainedAdvTextLayoutPresentation(binding);
+        presentation.Append(
+            [
+                new AdvRetainedGlyphRecord(0, 1, 2, 5, 8),
+                new AdvRetainedGlyphRecord(0, 5, 2, 9, 8),
+            ],
+            layoutOriginX: 30,
+            layoutOriginY: 40);
+        presentation.Append(
+            [new AdvRetainedGlyphRecord(0, 10, 3, 14, 9)],
+            layoutOriginX: 50,
+            layoutOriginY: 60);
+        var gfx = new GfxState();
+        gfx.CreateSurface(21);
+
+        Assert.Equal(2, presentation.PublishThrough(gfx, 3));
+
+        Assert.Collection(
+            gfx.SnapshotVisibleObjects(),
+            first => Assert.Equal(
+                (100L, 1, 2, 4, 6, 31, 42),
+                (first.Handle, first.SrcX, first.SrcY, first.W, first.H,
+                 first.DstX, first.DstY)),
+            second => Assert.Equal(
+                (101L, 5, 2, 4, 6, 35, 42),
+                (second.Handle, second.SrcX, second.SrcY, second.W, second.H,
+                 second.DstX, second.DstY)));
+        Assert.Null(gfx.TryGet(102));
+    }
+
+    [Fact]
+    public void RepublishRestoresPartialEraseWithoutAdvancingReveal()
+    {
+        var presentation = Presentation(capacity: 4);
+        var gfx = new GfxState();
+        gfx.CreateSurface(21);
+        presentation.PublishThrough(gfx, 2);
+        gfx.EraseRange(101, 1);
+
+        Assert.Single(gfx.SnapshotVisibleObjects());
+        Assert.Equal(2, presentation.Republish(gfx));
+        Assert.Equal(new long[] { 100, 101 },
+            gfx.SnapshotVisibleObjects().Select(item => item.Handle));
+
+        presentation.ErasePublished(gfx);
+        Assert.Empty(gfx.SnapshotVisibleObjects());
+        Assert.Equal(2, presentation.PublishedGlyphCount);
+    }
+
+    [Fact]
+    public void ConsecutiveRunsRetainTheirOwnLayoutOrigins()
+    {
+        var binding = new AdvTextLayoutPresentationBinding(
+            7, 27, 200, 10, -1, 53, 10);
+        var presentation = new RetainedAdvTextLayoutPresentation(binding);
+        presentation.Append(
+            [new AdvRetainedGlyphRecord(0, 3, 4, 7, 10)],
+            275, 90);
+        presentation.Append(
+            [new AdvRetainedGlyphRecord(0, 7, 4, 11, 10)],
+            275, 135);
+        var gfx = new GfxState();
+        gfx.CreateSurface(27);
+
+        presentation.PublishThrough(gfx, 2);
+
+        Assert.Equal(
+            new[] { (278, 94), (282, 139) },
+            gfx.SnapshotVisibleObjects().Select(item => (item.DstX, item.DstY)));
+    }
+
+    [Fact]
+    public void SavedFrameStyleReconstructionRebuildsTheSameBindings()
+    {
+        RetainedAdvTextLayoutPresentation before = Presentation(capacity: 4);
+        var gfx = new GfxState();
+        gfx.CreateSurface(21);
+        before.PublishThrough(gfx, 3);
+        RenderObject[] expected = gfx.SnapshotVisibleObjects().ToArray();
+
+        gfx.EraseRange(
+            before.Binding.FirstObjectHandle,
+            before.Binding.ObjectCapacity);
+        RetainedAdvTextLayoutPresentation reconstructed =
+            Presentation(capacity: 4);
+        reconstructed.PublishThrough(gfx, 3);
+
+        Assert.Equal(expected, gfx.SnapshotVisibleObjects());
+    }
+
+    private static RetainedAdvTextLayoutPresentation Presentation(int capacity)
+    {
+        var presentation = new RetainedAdvTextLayoutPresentation(
+            new AdvTextLayoutPresentationBinding(
+                1, 21, 100, capacity, -1, 10, 20));
+        presentation.Append(
+            [
+                new AdvRetainedGlyphRecord(0, 1, 2, 5, 8),
+                new AdvRetainedGlyphRecord(0, 5, 2, 9, 8),
+                new AdvRetainedGlyphRecord(0, 9, 2, 13, 8),
+            ],
+            30,
+            40);
+        return presentation;
+    }
+}