Share retained GL runtime dispatch adapters

docs/modernization/build-inventory.md

@@ -698,7 +698,11 @@ powershell -ExecutionPolicy Bypass -File scripts\automation\apple-remote-build.p
   with app startup, app clear, app UI viewport/scissor, and command-convert
   renderer state callbacks, so those files no longer duplicate local raw GL
   adapter clusters for capability, blend, clear, viewport, scissor, active
-  texture, or 2D texture-unbind execution.
+  texture, or 2D texture-unbind execution. Retained HMD viewport setup, text
+  atlas texture-unit activation, Windows/legacy default framebuffer binding,
+  platform render-hint enable callbacks, the global OpenGL error drain, and
+  Windows debug message callback installation also now reuse the shared retained
+  dispatch headers instead of file-local raw entrypoint adapters.
   Canvas mode overlay, mask, and transform paths also consume backend-owned
   blend/depth state execution, active texture unit dispatch, transform/cut
   viewport execution, 2D texture copy targets, and RGBA8 readback format tokens;

docs/modernization/debt.md

@@ -1,7 +1,7 @@
 # Modernization Debt Log
 
 Status: live
-Last updated: 2026-06-05
+Last updated: 2026-06-06
 
 Every shortcut, temporary adapter, retained vendored dependency, skipped
 platform gate, compatibility shim, or incomplete automation path must be
@@ -417,6 +417,13 @@ agent or engineer to remove them without reconstructing context from chat.
   `src/main.cpp`, and `src/app_shaders.cpp` no longer carry duplicated raw
   runtime-query callback clusters. Renderer services still need to own runtime
   and capability probing before this bridge can be removed.
+- 2026-06-06: DEBT-0036/DEBT-0017 were narrowed again. Retained HMD viewport
+  setup, text atlas texture-unit activation, Windows/legacy default framebuffer
+  binding, platform render-hint enable callbacks, the global OpenGL error drain,
+  and Windows debug message callback installation now reuse
+  `legacy_ui_gl_dispatch`/`legacy_gl_runtime_dispatch` instead of file-local raw
+  OpenGL entrypoint adapters. Renderer/context services still need to own these
+  paths before the retained dispatch bridges can be removed.
 - 2026-06-05: DEBT-0061 was opened. `pp_platform_api` now owns a tested desktop
   XR runtime-selection policy that prefers OpenXR and labels OpenVR as a
   legacy fallback; `WindowsPlatformServices` consumes that policy before

docs/modernization/roadmap.md

@@ -979,7 +979,10 @@ result while the backend owns the query set and order. The Windows entrypoint
 also uses that contract for early context logging and renderer-name window
 title construction before replacing the temporary WGL context. Retained runtime
 info and extension query callback endpoints now share
-`legacy_gl_runtime_dispatch`.
+`legacy_gl_runtime_dispatch`. The global OpenGL error drain and Windows debug
+message callback installation now also route through that retained runtime
+dispatch, keeping those entrypoints beside the other runtime callbacks until
+renderer/runtime services own context diagnostics.
 The default app clear color and color-buffer clear operation now dispatch
 through `pp_renderer_gl` as well, moving another direct OpenGL operation out
 of `App::clear` while preserving the current gray clear behavior; the live
@@ -2782,9 +2785,17 @@ Results:
 - Retained app startup logging, Windows early context logging/window-title
   detection, and shader capability detection now share
   `legacy_gl_runtime_dispatch` for runtime string and extension enumeration
-  callbacks, removing duplicated raw runtime-query clusters from `src/app.cpp`,
-  `src/main.cpp`, and `src/app_shaders.cpp` while runtime/capability probing
-  remains retained under DEBT-0036.
+  callbacks, plus the global OpenGL error drain and Windows debug message
+  callback installation now use the same retained runtime dispatch. This removes
+  duplicated raw runtime-query clusters from `src/app.cpp`, `src/main.cpp`, and
+  `src/app_shaders.cpp` and the last active one-off runtime entrypoints from
+  `src/util.cpp` and `src/platform_windows/windows_platform_services.cpp` while
+  runtime/capability probing remains retained under DEBT-0036.
+- Retained desktop HMD viewport setup, text atlas texture-unit activation,
+  Windows/legacy platform default framebuffer binding, and platform render-hint
+  enable callbacks now reuse `legacy_ui_gl_dispatch` instead of local raw GL
+  adapters while renderer/context ownership remains retained under DEBT-0036
+  and DEBT-0017.
 - Canvas draw-merge shader-blend selection now consumes the extracted
   `pp_paint_renderer` stroke composite planner for current layer and primary
   brush blend modes, while preserving legacy OpenGL compositing execution under