[Fix, Test] (MG_State, MG_Impl, MG_Backend): a program pipeline's compute stage is dispatched on its own, and the graphics composite draws its stage programs' uniform values

2026-09-12 06:08:30 +09:00 · 2026-08-11 20:10:17 -04:00
parent ba9af18033
commit 2ce0595fab
9 changed files with 260 additions and 45 deletions
@@ -163,9 +163,15 @@ namespace MobileGL {
                }
                void UseProgram(Uint program);
                const SharedPtr<ProgramObject>& GetCurrentProgram();
-                // What a draw or dispatch actually executes: the program in use, or - when
-                // there is none - the bound pipeline's stages composited into one program.
+                // What a DRAW executes: the program in use, or - when there is none - the bound
+                // pipeline's GRAPHICS stages composited into one program. A pipeline's compute
+                // stage is never part of that composite; ask GetProgramForDispatch for it.
                const SharedPtr<ProgramObject>& GetProgramForDraw();
+                // What a DISPATCH executes: the program in use, or - when there is none - the
+                // bound pipeline's compute stage program itself. GL's compute stage is a whole
+                // program on its own (GL 4.6 core 7.4: it may not be linked with any other
+                // stage), so there is nothing to composite and no composite to cache.
+                const SharedPtr<ProgramObject>& GetProgramForDispatch();
                // What glUniform* addresses: the program in use, or the bound pipeline's
                // active program (GL 4.6 core 7.6.1).
                const SharedPtr<ProgramObject>& GetProgramForUniform();