mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 10:19:47 -04:00
Matthew Stanley
79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
#include "mod_controller_source.h"
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#include "sio.h"
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#include <stdio.h>
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#include <string.h>
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static PSXModControllerSource s_source[PSX_MAX_PLAYERS];
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static uint8_t s_release[PSX_MAX_PLAYERS];
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/* One sample per player per frame: the early and the low-latency re-sample in
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* main.cpp share the result so a stateful callback runs once. */
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static PSXModControllerState s_cache[PSX_MAX_PLAYERS];
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static uint8_t s_cache_valid[PSX_MAX_PLAYERS];
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static uint8_t s_cache_released[PSX_MAX_PLAYERS];
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static uint32_t s_bad_count[PSX_MAX_PLAYERS];
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#define BAD_LOG_INTERVAL 600u
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int psx_mod_set_controller_source(uint32_t player, PSXModControllerSource source) {
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if (player >= PSX_MAX_PLAYERS) return 0;
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if (s_source[player] && !source) s_release[player] = 1;
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else if (source) s_release[player] = 0;
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s_source[player] = source;
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s_cache_valid[player] = 0;
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s_bad_count[player] = 0;
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return 1;
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}
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/* Detach every source but keep a neutral release pending for each port that
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* had one, so held buttons/sticks are cleared even on a port with no device. */
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void mod_controller_source_reset(void) {
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for (uint32_t i = 0; i < PSX_MAX_PLAYERS; i++) {
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if (s_source[i]) s_release[i] = 1;
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s_source[i] = NULL;
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}
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memset(s_cache_valid, 0, sizeof s_cache_valid);
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memset(s_bad_count, 0, sizeof s_bad_count);
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}
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void mod_controller_source_begin_frame(void) {
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memset(s_cache_valid, 0, sizeof s_cache_valid);
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}
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int mod_controller_source_present(uint32_t player) {
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return player < PSX_MAX_PLAYERS && s_source[player] != NULL;
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}
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static void note_bad(uint32_t player, const PSXModControllerState *s) {
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if (s_bad_count[player]++ % BAD_LOG_INTERVAL) return;
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fprintf(stderr,
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"psxrecomp: mod controller source (player %u) returned an invalid "
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"state (struct_size %u, expected %u; buttons 0x%x lx %u ly %u rx %u "
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"ry %u analog %u); delivering neutral (%u so far)\n",
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(unsigned)player, (unsigned)s->struct_size,
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(unsigned)sizeof *s, (unsigned)s->buttons, (unsigned)s->lx,
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(unsigned)s->ly, (unsigned)s->rx, (unsigned)s->ry,
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(unsigned)s->analog, (unsigned)s_bad_count[player]);
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}
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int mod_controller_source_sample(uint32_t player, PSXModControllerState *state,
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int *released) {
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if (released) *released = 0;
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if (!state || player>=PSX_MAX_PLAYERS || (!s_source[player] && !s_release[player] && !s_cache_valid[player])) return 0;
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if (s_cache_valid[player]) {
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*state = s_cache[player];
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if (released) *released = s_cache_released[player];
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return 1;
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}
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PSXModControllerState neutral = {sizeof neutral, 0xffff, 128,128,128,128,1};
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int rel = 0;
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*state = neutral;
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if (s_release[player]) { s_release[player] = 0; rel = 1; }
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else {
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if (!s_source[player](state)) *state = neutral; /* declined: neutral */
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else if (state->struct_size != sizeof *state ||
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state->buttons > 0xffff || state->lx > 255 || state->ly > 255 ||
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state->rx > 255 || state->ry > 255 || state->analog > 1) {
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note_bad(player, state);
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*state = neutral;
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}
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if (!state->analog) state->lx = state->ly = state->rx = state->ry = 128;
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}
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s_cache[player] = *state;
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s_cache_released[player] = (uint8_t)rel;
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s_cache_valid[player] = 1;
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if (released) *released = rel;
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return 1;
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}
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