mirror of
https://github.com/RetroPortingToolKit/psxrecomp
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Pegasus
77a8480363
Prefer the ISO9660 boot file over the bounded raw-image scan. Biohazard stores SYSTEM.CNF outside that scan, leaving fresh builds at the default SCEA response. Add raw and cooked late-file regressions with an early decoy serial. The full-profile prefix again matches the retained native baseline through 5999 returns; the independent-source frontier remains return 464.
(cherry picked from commit 82c3de13ef)
90 lines
4.5 KiB
C++
90 lines
4.5 KiB
C++
// disc_identity.h — disc-image identification + verification.
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//
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// Single source of truth for "is this the right disc?". Reads a .cue, raw
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// .bin/.iso/.img/.car, or CHD, checks for the ISO9660 PVD, extracts the volume id and the
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// PlayStation boot serial (from the actual SYSTEM.CNF directory entry, with
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// an early-image scan as fallback), derives the region from the
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// serial prefix, and optionally compares against an expected serial / CRC32.
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//
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// Also mounts the resolved path via ISOReader to capture TOC geometry
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// (track count, lead-out, per-track LBAs) and a stable disc_fp fingerprint
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// used by netplay peer matching — data-track CRC alone cannot catch a
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// Track-01-only mount vs a full Redump multi-track cue.
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//
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// Used both by the runtime's launch-time disc check (runtime/src/main.cpp)
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// and by the shared launcher's "Disc verified" badge, so
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// the two never drift apart.
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#pragma once
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#include <cstdint>
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#include <filesystem>
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#include <string>
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namespace PSXRecompV4 {
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struct DiscIdentity {
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bool opened = false; // data image opened (including decoded CHD)
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bool has_header = false; // ISO9660 "CD001" PVD found at a PS1 disc offset
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std::string volume_id; // PVD volume identifier (trimmed), "" if none
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std::string detected_serial; // serial parsed from SYSTEM.CNF BOOT line, normalized
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// to the "SCUS-94236" form; "" if not found
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std::string region; // "NTSC-U" | "NTSC-J" | "PAL" derived from the serial
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// prefix (detected first, else expected); "" if unknown
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// Serial comparison vs the expected game id (only meaningful when one was given).
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bool expected_serial_given = false;
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bool serial_matches = false; // expected serial present in early disc metadata
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// Full-file CRC32 (IEEE 802.3 over the data track / image bytes).
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bool crc_computed = false;
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uint32_t crc = 0;
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bool expected_crc_given = false;
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bool crc_matches = false;
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// Mount / TOC (ISOReader on resolve_disc_path().mount).
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bool from_cue = false; // mount path is a .cue
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bool cue_fallback = false; // resolver fell back from a broken cue to a bin
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bool upgraded_to_cue = false; // caller picked bin; mounted owning cue
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bool toc_opened = false; // ISOReader::Open succeeded on mount
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int track_count = 0; // >= 1 when toc_opened
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uint32_t leadout_lba = 0; // iso sector count (GetTD track 0)
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std::string disc_fp; // lowercase hex SHA-256 of canonical TOC
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// Netplay gate (filled when NetplayDiscExpect is applied).
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bool netplay_ok = true;
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std::string netplay_detail; // why netplay_ok is false
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std::string detail; // human-readable note (failure reason or extra info)
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};
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// Optional title policy from game.toml [netplay] (0 / empty = do not check).
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struct NetplayDiscExpect {
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bool require_cue = false;
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int required_tracks = 0; // exact iso_track_count; 0 = skip
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bool has_required_leadout = false;
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uint32_t required_leadout_lba = 0;
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std::string required_disc_fp; // exact fingerprint; empty = skip
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};
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// Identify and (optionally) verify a disc image.
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// path : a .cue, raw .bin/.iso/.img/.car, or .chd image
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// expected_serial : the game id, e.g. "SCUS-94236" ("" skips the serial check)
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// expected_crc : full-file CRC32 to match against
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// has_expected_crc : whether expected_crc is meaningful
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// compute_crc : compute the full-file CRC32 (streamed; can be slow on big
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// images — callers typically only request it when there is an
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// expected CRC to compare against)
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// netplay_expect : optional TOC / cue policy; nullptr skips netplay_ok checks
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// (disc_fp / track_count are still computed when mount opens)
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DiscIdentity identify_disc(const std::filesystem::path& path,
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const std::string& expected_serial,
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uint32_t expected_crc, bool has_expected_crc,
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bool compute_crc,
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const NetplayDiscExpect* netplay_expect = nullptr);
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// Apply / re-apply netplay mount policy onto an already-identified disc.
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void apply_netplay_disc_expect(DiscIdentity& id, const NetplayDiscExpect& expect);
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} // namespace PSXRecompV4
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