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phase(N.5) Task 6: GameWindow capability detection + plumb BindlessSupport

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Detects ARB_bindless_texture + ARB_shader_draw_parameters at startup
when WbFoundationFlag is enabled. Stores BindlessSupport on GameWindow
and passes it to TextureCache so the parallel Texture2DArray upload
path is available to future bindless callers.

Mesh shader load remains mesh_instanced for now — Task 10 swaps to
mesh_modern after Tasks 7-9 rewire the dispatcher to consume the
bindless + SSBO + indirect machinery.

Capability missing → BindlessSupport stays null → TextureCache runs
without the bindless path → legacy callers (StaticMeshRenderer,
InstancedMeshRenderer, ParticleRenderer, current WbDrawDispatcher
draw loop) are unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-05-08 20:15:06 +02:00
parent 166af9a53e
commit 93ebd9e433
1 changed files with 24 additions and 1 deletions
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25
src/AcDream.App/Rendering/GameWindow.cs
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@ -33,6 +33,10 @@ public sealed class GameWindow : IDisposable
private AcDream.App.Rendering.Wb.WbMeshAdapter? _wbMeshAdapter;
private AcDream.App.Rendering.Wb.EntitySpawnAdapter? _wbEntitySpawnAdapter;
private AcDream.App.Rendering.Wb.WbDrawDispatcher? _wbDrawDispatcher;
/// <summary>Phase N.5: ARB_bindless_texture + ARB_shader_draw_parameters
/// support. Non-null only when both extensions are present and WbFoundation
/// is enabled. Passed to TextureCache and (later) WbDrawDispatcher.</summary>
private AcDream.App.Rendering.Wb.BindlessSupport? _bindlessSupport;
private SamplerCache? _samplerCache;
private DebugLineRenderer? _debugLines;
// K-fix4 (2026-04-26): default OFF. The orange BSP / green cylinder
@ -1419,7 +1423,26 @@ public sealed class GameWindow : IDisposable
_heightTable = heightTable;
_surfaceCache = new Dictionary<uint, AcDream.Core.Terrain.SurfaceInfo>();
_textureCache = new TextureCache(_gl, _dats);
// N.5: detect ARB_bindless_texture + ARB_shader_draw_parameters when WB
// foundation is on. Store the BindlessSupport for TextureCache + future
// WbDrawDispatcher. Mesh shader load stays as mesh_instanced for now —
// Task 10 swaps to mesh_modern after the dispatcher is rewired.
if (AcDream.App.Rendering.Wb.WbFoundationFlag.IsEnabled
&& AcDream.App.Rendering.Wb.BindlessSupport.TryCreate(_gl, out var bindless)
&& bindless is not null)
{
if (bindless.HasShaderDrawParameters(_gl))
{
_bindlessSupport = bindless;
Console.WriteLine("[N.5] modern path capabilities present (bindless + ARB_shader_draw_parameters)");
}
else
{
Console.WriteLine("[N.5] GL_ARB_shader_draw_parameters not present — modern dispatch path will not activate");
}
}
_textureCache = new TextureCache(_gl, _dats, _bindlessSupport);
// Two persistent GL sampler objects (Repeat + ClampToEdge) so
// the sky pass can pick wrap mode per submesh without mutating
// shared per-texture wrap state. See SamplerCache + the