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resim optimizations

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This commit is contained in:
Alex Vanderveen
2026-08-02 19:11:04 -04:00
parent bc99f95fff
commit 90266d4eaa
6 changed files with 679 additions and 64 deletions
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runtime/src/main.cpp
+11 -5
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@@ -887,6 +887,8 @@ extern "C" void psx_frontend_on_rb_snap_loaded(void) {
}
gl_renderer_restage_vram_after_savestate();
vk_renderer_restage_vram_after_savestate();
/* §63: guest SIO came from the snap — drop Live pad-edge trackers. */
psx_netplay_on_rb_snap_loaded();
}
static uint64_t smooth_60_frame_hash(const uint32_t* pixels, size_t count) {
@@ -3767,16 +3769,20 @@ static void netplay_hold_last_present_tick(void) {
}
}
/* §47/§51 Layer 4: long Replay catch-up — wall-clock gate for a real VRAM
/* §47/§51/§63 Layer 4: long Replay catch-up — wall-clock gate for a real VRAM
* present. Independent of SPAN chunk boundaries (those are bookkeeping, not
* present events). Returns 1 if this guest vblank should fall through. */
* present events). Returns 1 if this guest vblank should fall through.
*
* §63: tip episodes are ≤ tip_runway (24). Live-presenting those frames
* re-showed edge-trigger menu inputs that Live had already displayed before
* the rewind (pad-log DUP_SIO Start/dpad). Hold-last through a full SPAN;
* only ownership-chain catch-up deeper than that shows live progress. */
static int netplay_replay_catchup_should_live_present(uint32_t remaining) {
static uint64_t s_catchup_present_ms;
uint64_t now = SDL_GetTicks64();
/* ~6–7 Hz: enough to show progress without flashing every resim frame
* (old period≈frame_ms presented nearly every tick when rem>8). */
/* ~6–7 Hz: enough to show progress without flashing every resim frame. */
uint32_t period = 150u;
if (remaining <= 8u)
if (remaining <= 24u)
return 0;
if (s_catchup_present_ms != 0ull && now >= s_catchup_present_ms &&
(uint32_t)(now - s_catchup_present_ms) < period)