[tetrisgm]

What:

• Internal resolution and supersample are live settings (PSX_VIDEO_LIVE_RESOLUTION): the new scale applies at the next frame through the dynamic-resolution step machinery (gl_renderer_set_internal_scale_live: moves the step ceiling, clamped like the boot scale, and records the step in stream order with the render thread). The dynamic-resolution controller is retargeted to the new ceiling. Only the legacy integer supersampling factor still needs a relaunch.
• settings.toml [video] supersample is the player's pick (1.0..4.0), saved by the menu.
• The in-game menu round-trips internal_resolution (it was never copied back, so changing it did nothing until a relaunch) and, with a launcher that has RECOMP_LAUNCHER_HAS_SUPERSAMPLE, supersample_milli.
• Debug-tools builds: video_set drives the same path.

Why: owner: resolution and supersampling must be settable in game and take effect immediately.

Verified (R4, RTX 4080, 8K): via video_set in a race, each change applied within 0.5 s with no relaunch: 1080p 5x, 4K 9x, 4K+2x 18x, Match display 18x, 720p+1.5x 5x. host_overlay_test updated and passing; R4 ctest 22/22.

Sibling: RetroPortingToolKit/recomp-launcher#3

🤖 Generated with Claude Code

[mstan]

Live resolution is meaningful and the existing dynamic-scale machinery is the right starting point. The current capability/result contract is wrong for several supported cases: psx_host_video_restart_bits now always excludes internal_resolution, but psx_video_apply_live only attempts GL and gl_renderer_set_internal_scale_live returns 0 for hiw, CPU-authoritative dual rendering, missing context or unavailable resources. These paths still update/save the requested settings and report restart=0 even though the image did not change. Please distinguish requested settings from the last successfully applied settings, retain a resolution restart requirement whenever live application is unavailable/refused, and expose truthful per-backend/menu capability. Reject invalid video_set presets/factors without saving them or reporting success, and regenerate the TCP command index. A focused GL live-change check plus one refused/non-GL check is enough to establish this contract; no new opt-in is needed for the round-trip correctness repair. Tracking: beads-ek8k.

[tetrisgm]

Addressed in b1ce3be: requested resolution (shown and saved) is now kept apart from the last applied one. When a live change is unavailable (no GL, hiw, CPU-authoritative dual, no context) or refused, the scale stays as applied and PSX_VIDEO_RESTART_RESOLUTION stays set, both in psx_video_apply_live and in the menu's restart bits. That logic is psx_host_video_restart_bits_backend, unit-tested for the capable and refused cases. video_set rejects invalid presets and factors without applying or saving anything, and it reports the applied values, live_capable and restart_pending. The TCP command index is regenerated.

[mstan]

Re-reviewed b1ce3be. Backend capability, input rejection and regenerated command index address substantial feedback. The applied-state contract still acknowledges a queued request as if allocation and application have completed: gl_renderer_set_internal_scale_live queues through gl_renderer_request_internal_scale, while the later dyn_apply can refuse allocation. g_video_res_applied_* is already advanced and the failure flag cleared at that point. Please acknowledge successful backend application, retain pending/refused status through the frame boundary, and test an allocation refusal after enqueue. Restart comparison must also use the last actually applied resolution rather than only the boot settings: after a successful live A->B change, a refused B->A request currently compares equal to boot A and can report no resolution restart while the image remains at B. A focused state-transition witness for this sequence and a GL/non-GL check is enough; no full gameplay matrix is requested. This head remains held and is outside the current frozen game batch. Tracking: beads-ek8k.

[mstan]

Maintainer corrections pushed in 674f393 (your new 0ec7c76 menu-fixture fix is preserved). Live resolution now drains/acquires the GL owner and confirms successful allocation/application before advancing applied settings; refusal preserves the previous scale/ceiling and cannot later apply the refused request. Restart comparison uses the last confirmed resolution, so successful A->B followed by refused B->A still requests a restart even when A was the boot value. Applied resolution/supersample publication is coherent.

The actual GL fixture injects an allocation failure without exhausting VRAM, checks refusal/recovery, and preserves matching native/high-resolution/wide pixels with the render thread off/on at 1x and 3x. The focused restart-transition checks pass too. Current-master integration conflicts were resolved, and OpenBIOS was genuinely regenerated with byte-identical C before restamping. The four-title smoke batch is underway; I will reconsider merge after it completes. Tracking: beads-kgof.

[mstan]

Maintainer fixes confirm GL allocation/application synchronously before advancing applied settings. Allocation refusal preserves scale/ceiling and cannot apply later. Restart comparison uses the last confirmed values; applied values publish coherently and reset per execution session. Real GL allocation-refusal/recovery and 1x/3x threaded/unthreaded pixel fixtures pass. Actual Tomba live native->480->native reports confirmed 1x->2x->1x with no restart pending. The author menu snapshot change is retained and its concurrent reader fixture passes.

One bounded muted OpenGL boot/progression/visual smoke passed for Tomba, Tomba 2, Ape Escape and Mega Man X6. Tomba 2 reached its title screen after the opening FMV at native aspect; its unsupported widescreen package remains disabled. Supported debug quit returned exit 0 for all four; this is not extended gameplay, normal-teardown or native-card-write qualification.

Combined integration 9ee1a8c63996cc91e4068aa27f100d407ab1ac0e includes #710/#723/#736/#737/#746; #736 remains held for residency policy. Six focused native checks and the GL fixture passed. This evidence qualifies the reviewed heads as a compatible subset, not an exact final-master-tree claim. Tracking: beads-kgof.