mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-27 18:52:11 -04:00
Matthew Stanley
439423af03
Fixes the false FMV flag after every snapshot load made before the first video (#475 cause 1); v1 payloads still load. Drops the unread host-frame stamp. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
99 lines
3.1 KiB
C
99 lines
3.1 KiB
C
#undef NDEBUG /* the Release test target must execute its assertions */
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/* The MDEC FMV-activity stamp survives a snapshot round trip as itself:
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* "never decoded" stays never (issue #475: it used to load as "decoded 1000
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* cycles ago", a false FMV for ~8 frames after every early snapshot load),
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* a real recent decode stays recent, and v1 payloads still load. */
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#include "../src/mdec.c"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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uint64_t psx_cycle_count;
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uint64_t s_frame_count;
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int debug_server_fmv_quiet(void) { return 1; }
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#define FRAME 338688ull
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static uint8_t *snap(uint32_t *len) {
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*len = mdec_snapshot_bytes();
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uint8_t *p = (uint8_t *)malloc(*len);
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assert(p);
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mdec_snapshot_write(p);
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return p;
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}
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static void put_u32(uint8_t *p, uint32_t off, uint32_t v) {
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for (int i = 0; i < 4; i++) p[off + i] = (uint8_t)(v >> (8 * i));
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}
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static void put_u64(uint8_t *p, uint32_t off, uint64_t v) {
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for (int i = 0; i < 8; i++) p[off + i] = (uint8_t)(v >> (8 * i));
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}
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int main(void) {
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uint32_t len;
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uint8_t *p;
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const uint32_t age_off = MDEC_SNAP_OFF_COUNTS + 8u;
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/* 1. Nothing decoded: save, load later in the session -> still idle. */
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mdec_init();
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psx_cycle_count = 100ull * FRAME;
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assert(!mdec_recently_active(8));
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p = snap(&len);
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psx_cycle_count = 200ull * FRAME;
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assert(mdec_snapshot_read(p, len));
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assert(!mdec_recently_active(8));
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assert(mdec_color_age_cycles() == (uint64_t)0 - 1u);
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free(p);
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/* 2. A real decode 3 frames before the save stays 3 frames old. */
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mdec_init();
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psx_cycle_count = 500ull * FRAME;
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mdec_last_color_decode_cycle = psx_cycle_count - 3ull * FRAME;
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p = snap(&len);
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mdec_init();
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assert(!mdec_recently_active(8));
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psx_cycle_count = 500ull * FRAME;
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assert(mdec_snapshot_read(p, len));
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assert(mdec_recently_active(8));
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assert(mdec_color_age_cycles() == 3ull * FRAME);
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free(p);
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/* 3. A v1 payload's "never" (age 1000) loads as never... */
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mdec_init();
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psx_cycle_count = 50ull * FRAME;
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p = snap(&len);
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put_u32(p, 0u, MDEC_SNAP_VER_V1);
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put_u64(p, age_off, MDEC_SNAP_V1_AGE_NEVER);
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assert(mdec_snapshot_validate(p, len));
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assert(mdec_snapshot_read(p, len));
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assert(!mdec_recently_active(8));
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/* ...and any other v1 age is a real decode. */
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put_u64(p, age_off, 2ull * FRAME);
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assert(mdec_snapshot_read(p, len));
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assert(mdec_recently_active(8));
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assert(mdec_color_age_cycles() == 2ull * FRAME);
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free(p);
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/* 4. A decode older than the restored clock's origin is not recent. */
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mdec_init();
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psx_cycle_count = 900ull * FRAME;
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mdec_last_color_decode_cycle = 100ull * FRAME;
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p = snap(&len);
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psx_cycle_count = 10ull * FRAME;
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assert(mdec_snapshot_read(p, len));
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assert(!mdec_recently_active(8));
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free(p);
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/* 5. Unknown versions are still refused. */
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mdec_init();
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p = snap(&len);
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put_u32(p, 0u, 3u);
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assert(!mdec_snapshot_validate(p, len));
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assert(!mdec_snapshot_read(p, len));
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free(p);
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puts("mdec_snapshot_activity_test: PASS");
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return 0;
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}
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