mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Shokunin
a2bbf961ec
- psx_netplay_seat_count() and psx_netplay_sim_pad(seat, out): the pad row last published to SIO for each seat at the current simulation tick, following delay-sync publication and rollback's sealed overrides, for a game hook whose title reads more players than its SIO protocol exposes (R4 Link Battle). Host-only cache, never serialized; republished on every admitted or replayed tick. - Load barrier: while a slower peer is still applying a save, neither mode waits for confirmation from an already-frozen peer (rollback did this already); after mutual ready, both modes resume on a confirmed first tick instead of rollback inventing it, so peers cannot run different inputs from the identical restored state. From the R4 Link Battle branch; its headless input probe is dropped because master already honours debug input on headless peers. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#ifndef NETPLAY_SIM_PAD_CACHE_H
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#define NETPLAY_SIM_PAD_CACHE_H
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#include "psx_netplay.h"
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#include <string.h>
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#ifndef PSX_MAX_PLAYERS
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#define PSX_MAX_PLAYERS 2
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#endif
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/* Host-only snapshot of the exact normalized seat rows published for one
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* simulation tick. Rollback seal publication may overwrite an earlier
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* predicted row for that same tick. Never serialize this cache: resimulation
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* republishes all rows after loading the guest state. */
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typedef struct PsxNetplaySimPadCache {
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PsxNetPad pads[PSX_MAX_PLAYERS + 1];
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uint32_t ticks[PSX_MAX_PLAYERS + 1];
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uint8_t valid[PSX_MAX_PLAYERS + 1];
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} PsxNetplaySimPadCache;
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static inline void psx_netplay_sim_pad_cache_reset(PsxNetplaySimPadCache *cache)
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{
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if (cache) memset(cache->valid, 0, sizeof(cache->valid));
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}
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static inline void psx_netplay_sim_pad_cache_publish(
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PsxNetplaySimPadCache *cache, int seat, uint32_t tick,
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const PsxNetPad *pad)
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{
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if (!cache || !pad || seat < 0 || seat > PSX_MAX_PLAYERS) return;
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cache->pads[seat] = *pad;
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cache->ticks[seat] = tick;
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cache->valid[seat] = 1;
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}
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static inline int psx_netplay_sim_pad_cache_read(
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const PsxNetplaySimPadCache *cache, int seat, int seat_count,
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uint32_t tick, PsxNetPad *out)
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{
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if (!cache || !out || seat < 0 || seat >= seat_count ||
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seat > PSX_MAX_PLAYERS || !cache->valid[seat] ||
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cache->ticks[seat] != tick) return 0;
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*out = cache->pads[seat];
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return 1;
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}
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#endif
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