Share retained texture dispatch bridge

docs/modernization/roadmap.md

@@ -1137,7 +1137,10 @@ format mapping for `Texture2D` image uploads and framebuffer status naming for
 OpenGL internal/pixel/component token mapping, including depth-stencil formats,
 for future backend texture objects. `Texture2D` 2D texture binding, upload,
 mipmap generation, framebuffer readback setup, and update component-type tokens
-now delegate to `pp_renderer_gl`. `TextureCube` cube-map binding, allocation
+now delegate to `pp_renderer_gl`; retained `Texture2D`, `TextureCube`, and
+`RTT` texture allocation, bind, parameter, update, mipmap, and delete dispatch
+now share the retained `legacy_gl_texture_dispatch` raw callback bridge.
+`TextureCube` cube-map binding, allocation
 face targets, RGBA allocation format, and unsigned-byte component type also
 delegate to `pp_renderer_gl`. RGBA8/RGBA32F readback formats, checked byte-count math, PBO
 pixel-buffer target/usage/access tokens, and PBO allocation/readback/map/unmap/delete
@@ -2547,6 +2550,11 @@ Results:
   `legacy_gl_renderbuffer_dispatch`, removing duplicated raw renderbuffer
   callbacks from `src/canvas.cpp` and `src/rtt.cpp` while resource lifetime
   ownership remains open under DEBT-0036.
+- Retained `Texture2D`, `TextureCube`, and RTT texture allocation, deletion,
+  binding, parameter setup, 2D update, and mipmap dispatch now share
+  `legacy_gl_texture_dispatch`, removing duplicated raw texture callbacks from
+  `src/texture.cpp` and `src/rtt.cpp` while texture resource ownership remains
+  retained under DEBT-0036.
 - 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