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no magic numbers

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This commit is contained in:
Garrett Smith 2026-01-24 17:45:42 -08:00
parent e2a57d9b2c
commit 8ca6a9f8d8
1 changed files with 6 additions and 5 deletions
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11
ultramodern/src/pfs.cpp
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@ -8,6 +8,7 @@
#define ARRLEN(x) (sizeof(x) / sizeof((x)[0]))
#define DEF_DIR_PAGES 2
#define MAX_FILES 16
#define MAX_PAGES 123 // 128 total, 5 reserved for filesystem
/* PFS Context */
@ -15,8 +16,8 @@ struct pfs_header_t { // same layout as OSPfsState, but non-byteswapped
uint32_t file_size;
uint32_t game_code;
uint16_t company_code;
std::array<char, 4> ext_name;
std::array<char, 16> game_name;
std::array<char, PFS_FILE_EXT_LEN> ext_name;
std::array<char, PFS_FILE_NAME_LEN> game_name;
uint16_t padding;
pfs_header_t() = default;
@ -354,16 +355,16 @@ extern "C" s32 osPfsFreeBlocks(RDRAM_ARG PTR(OSPfs) pfs_, PTR(s32) bytes_not_use
OSPfs *pfs = TO_PTR(OSPfs, pfs_);
s32 *bytes_not_used = TO_PTR(s32, bytes_not_used_);
s32 bytes_used = 0;
s32 pages_used = 0;
pfs_header_t hdr{};
for (size_t i = 0; i < MAX_FILES; i++) {
pfs_header_read(i, hdr);
if (hdr.valid()) {
bytes_used += hdr.file_size >> 8;
pages_used += hdr.file_size >> 8;
}
}
*bytes_not_used = (123 - bytes_used) << 8;
*bytes_not_used = (MAX_PAGES - pages_used) << 8;
return 0;
}