[Fix] (MG_State, MG_Impl/GLImpl): allocating a mipmap level no longer truncates the chain above it - AllocateLevel now only grows and the callers that genuinely redefine the whole level set (glTexStorage*, mip regeneration, multisample storage, level-0 respecification) drop the tail explicitly

2026-09-11 13:48:30 +09:00 · 2026-07-20 21:02:54 -04:00
parent 3b175fb88a
commit e724e88eec
9 changed files with 188 additions and 6 deletions
@@ -19,6 +19,10 @@ namespace MobileGL {
            public:
                SizeT GetLevelCount() const;
                void AllocateLevel(Uint level, MipmapInput input);
+                // Discard every level at or above levelCount. AllocateLevel never shrinks, so this
+                // is the only way a chain gets shorter - use it where the caller defines the whole
+                // level set (glTexStorage*, mip regeneration, atlas respecification).
+                void TruncateToLevelCount(SizeT levelCount);
                void UpdateSubData(Uint level, DataPtr input);
                void* MapData(Uint level);
                IntVec3 GetTexelSize(Uint level) const;