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Live resolution: truthful restart contract per backend

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Keep the requested internal resolution / supersample (shown and saved)
apart from what the backend last applied. When the live change is
unavailable (no GL, windowed high-resolution mode, CPU-authoritative dual
rendering, no context) or refused, the session scale is left as applied and
PSX_VIDEO_RESTART_RESOLUTION stays set, in both psx_video_apply_live and
the menu's restart bits (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, and reports applied values, capability
and pending restart. TCP command index regenerated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Shokunin
2026-10-22 14:20:55 -07:00
parent 359019c052
commit b1ce3be00a
8 changed files with 139 additions and 20 deletions
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runtime/include/gpu_gl_renderer.h
+4
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@@ -399,6 +399,10 @@ int gl_renderer_step_internal_scale_now(int scale);
* the next frame boundary (the new ceiling). Returns the scale applied, 0 when
* the backend cannot change it live. */
int gl_renderer_set_internal_scale_live(int scale);
/* 1 when gl_renderer_set_internal_scale_live can apply on this session (no
* windowed high-resolution mode, no CPU-authoritative dual rendering, a live
* raster context). 0 means a resolution change needs a relaunch. */
int gl_renderer_internal_scale_live_capable(void);
typedef struct GlDynresStats {
int level, ceiling, pending; /* pending: requested level, 0 = none */
uint64_t steps, deferred, refused;
runtime/include/host_overlay.h
+7
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@@ -109,6 +109,13 @@ unsigned psx_host_video_live_changes(const PsxHostVideoSettings *prev,
const PsxHostVideoSettings *next);
unsigned psx_host_video_restart_bits(const PsxHostVideoSettings *boot,
const PsxHostVideoSettings *next);
/* psx_host_video_restart_bits for a backend that may not move the resolution
* live: when res_live_ok is 0 (backend incapable, or a live change was
* refused), an internal resolution / supersample that differs from boot keeps
* PSX_VIDEO_RESTART_RESOLUTION. */
unsigned psx_host_video_restart_bits_backend(const PsxHostVideoSettings *boot,
const PsxHostVideoSettings *next,
int res_live_ok);
/* Runtime side (main.cpp). */
unsigned psx_video_apply_live(const PsxHostVideoSettings *next);
void psx_video_current(PsxHostVideoSettings *out);