mirror of
https://github.com/sal063/AC6_recomp
synced 2026-08-24 08:00:03 -04:00
salh
37 lines
1.8 KiB
C++
37 lines
1.8 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <string_view>
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#include <vector>
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// Writes a single decoded PAC entry to the runtime dump directory.
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// Filename format: entry_<index>_mode<mode>_c<csize>_u<usize>_off<hex_offset>.bin
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void Ac6DumpPacDecodedEntry(uint16_t entry_index, uint8_t codec_mode, uint32_t compressed_size,
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uint32_t decompressed_size, uint32_t source_offset,
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const uint8_t* host_data);
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// Returns up to `max_bytes` of the compressed source for the given DATA.TBL
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// entry, drawing from the chunks recorded by Ac6OnPacReadCompleted. Returns
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// an empty vector if DATA.TBL isn't loaded yet, the entry index is unknown,
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// the entry has zero compressed size, or the relevant byte range hasn't been
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// streamed in yet. Safe to call from any thread; takes the same mutex used
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// by the dump path so it can race with in-flight reads.
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std::vector<uint8_t> Ac6PeekCompressedHead(uint32_t entry_index, std::size_t max_bytes);
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// Hook called from the kernel-side NtReadFile completion path for any read
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// targeting an AC6 PAC archive (DATA00.PAC, DATA01.PAC) or DATA.TBL itself.
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// - For DATA.TBL reads: parses and caches the index.
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// - For DATA00/01.PAC reads whose (offset, length) match a cached DATA.TBL
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// entry: dumps the entry (decompressing first if compressed).
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//
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// All work is gated on AC6_DUMP_PAC_DECODED=1; otherwise this is a no-op.
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//
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// Args:
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// path - guest path of the file just read (e.g. "game:\\DATA00.PAC")
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// guest_buffer - guest virtual address of the read destination buffer
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// file_offset - byte offset within the file where the read started
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// bytes_read - number of bytes successfully read
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void Ac6OnPacReadCompleted(std::string_view path, uint32_t guest_buffer, uint64_t file_offset,
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uint32_t bytes_read);
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