erik/acdream
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

feat(D.2b): textured-sprite path in TextRenderer + UV-rect DrawSprite

Browse source 
Add uUseTexture==2 (RGBA modulate) branch to ui_text.frag so dat sprites
can be drawn through the existing 2D batcher without touching the font path.

TextRenderer gains _spriteBufs (per-GL-handle List<float>), DrawSprite(), and
a Flush block that issues one draw call per distinct texture with uUseTexture=2.
Also adds DepthMask(false) in the state-save block (restored to true after) to
prevent the transparent-quad pass from writing depth and corrupting the 3D scene
if the UI is flushed mid-frame.

TextureCache gains GetOrUpload(surfaceId, out width, out height) — caches pixel
dimensions alongside the GL handle so UI 9-slice geometry can compute slice UVs
from the source image size without a second decode.

UiRenderContext gains a DrawSprite forwarder that applies the current 2D
translate stack, matching the DrawRect / DrawRectOutline pattern.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-06-14 14:28:29 +02:00
parent 626d06ebc1
commit c9eef1d7cd
4 changed files with 70 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

23
src/AcDream.App/Rendering/TextureCache.cs
View file

@ -14,6 +14,7 @@ public sealed unsafe class TextureCache : Wb.ITextureCachePerInstance, IDisposab
private readonly GL _gl;
private readonly DatCollection _dats;
private readonly Dictionary<uint, uint> _handlesBySurfaceId = new();
private readonly Dictionary<uint, (int w, int h)> _sizeBySurfaceId = new();
/// <summary>
/// Composite cache for surface-with-override-origtex entries (Phase 5
/// TextureChanges). Key = (baseSurfaceId, overrideOrigTextureId),
@ -80,6 +81,28 @@ public sealed unsafe class TextureCache : Wb.ITextureCachePerInstance, IDisposab
return h;
}
/// <summary>
/// Like <see cref="GetOrUpload(uint)"/> but also returns the decoded
/// pixel dimensions. UI 9-slice geometry needs the source size to
/// compute slice UVs. Cached alongside the handle.
/// </summary>
public uint GetOrUpload(uint surfaceId, out int width, out int height)
{
if (_handlesBySurfaceId.TryGetValue(surfaceId, out var existing)
&& _sizeBySurfaceId.TryGetValue(surfaceId, out var sz))
{
width = sz.w; height = sz.h;
return existing;
}
var decoded = DecodeFromDats(surfaceId, origTextureOverride: null, paletteOverride: null);
uint h = UploadRgba8(decoded);
_handlesBySurfaceId[surfaceId] = h;
_sizeBySurfaceId[surfaceId] = (decoded.Width, decoded.Height);
width = decoded.Width; height = decoded.Height;
return h;
}
/// <summary>
/// Alpha-channel histogram for one decoded texture. Used to diagnose
/// "why are clouds not transparent" — if cloud textures come out with