mirror of
https://github.com/MobileGL-Dev/MobileGL
synced 2026-09-13 06:38:31 +09:00
BZLZHH
25a8f51db5
mc_use_program cycles programs whose texture bindings never change, yet every switch re-walked the units. Six fixes, one theme: a switch back to a known program should find its own state waiting. Per-program 4-entry resolved-texture-binding memo (round-robin, shadow memcmp on hit) skips the unit walk when a program returns with its bindings intact. The whole sampler-uniform pass in BindCurrentProgramWithResources is memoized per program twin behind (context, unitBindingsEpoch, samplingGeneration, backendStateVersion, textureContextGeneration) plus a per-sampled-unit sampler-shadow row compare, invalidated on relink/backend rebuild; the BindCurrentUnitSamplers walk sits behind the same keys. Every unit assignment, sampler-parameter change and bind path was verified to bump one of those inputs. UboRingAllocate's common path is now a generation check, a power-of-two mask, an overrun check and a head bump - the duplicate availability probe, frame-mark retirement and divisions moved to the wrap slow path. The per-context framebuffer binding slots (the frontend getter linear-scans per call) are cached as direct pointers - slots are by-value members of GLContext, so the pointers are stable by construction - feeding SyncCurrentFBO, SyncNeccessaryTextures and the broadcast memo; BindCurrentFBO's per-draw registry hash Find became a TwinLookupMemo probe. The VAO config-version cold-line load is hoisted to the top of PrepareForDraw to overlap its miss. Quiet-box load-gated 6-round order-alternating A/B, all nine cases, both backends: use_program -27.7%, vanilla_draw -16.2%, ubo_range -13.4%, pass_switch -11.1%, sampler_churn -10.7%, state_toggle -9.2%, sodium_multidraw -5.3%, rest flat. No regression on either backend (magma's one matrix flag disproved by isolated re-runs against byte-identical DirectVulkan sources). Unit tests 421/421.