thepigeongenerator/mcaselector-lite
1
0
Fork 0
mirror of https://github.com/thepigeongenerator/mcaselector-lite synced 2026-02-08 17:42:45 +01:00
Code Issues Packages Projects Releases Wiki Activity

Rewrite endian.h to utilise the new endian-specific integer types, for better type safety.

Browse Source
This commit is contained in:
Quinn
2026-01-22 12:21:49 +01:00
parent 44b3af2b46
commit 51dc8f85a6
3 changed files with 48 additions and 50 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
src/dat/mcx.c
View File

@@ -31,11 +31,11 @@ enum mcx_compression {
/* first 4 bytes is an s32 indicating remaining bytes, the following byte defines the compression scheme */
static int mcx_loadchunk(const u8 *restrict buf, const s32 *restrict table, int idx)
{
const u8 *chunk = buf + (be32toh(table[idx]) >> 8) * SECTOR;
const u8 *chunk = buf + (cvt_be32toh(table[idx]) >> 8) * SECTOR;
s32 len;
memcpy(&len, chunk, 4);
len = be32toh(len);
len = cvt_be32toh(len);
chunk += 4;
struct archive *archive = archive_read_new();
@@ -86,8 +86,8 @@ static void mvchunks(u8 *dst, u8 *src, u32 *restrict table, int src_s, int src_e
// count how many bytes we need to move, whilst updating location data
usize blen = 0;
for (src_s++; src_s <= src_e; src_s++) {
blen += (be32toh(table[src_s]) & 0xFF) * SECTOR;
table[src_s] -= htobe32((len / SECTOR) << 8);
blen += (cvt_be32toh(table[src_s]) & 0xFF) * SECTOR;
table[src_s] -= cvt_htobe32((len / SECTOR) << 8);
}
memmove(dst, src, blen);
}
@@ -99,13 +99,13 @@ static usize delchunk(u8 *restrict buf, u32 *restrict table, usize rmb, int sidx
{
// load the table data
usize slen, bidx, blen;
slen = be32toh(table[sidx]) & 0xFF; // acquire the sector length of the chunk
bidx = (be32toh(table[sidx]) >> 8) * SECTOR; // acquire and compute the byte offset the chunk starts at
slen = cvt_be32toh(table[sidx]) & 0xFF; // acquire the sector length of the chunk
bidx = (cvt_be32toh(table[sidx]) >> 8) * SECTOR; // acquire and compute the byte offset the chunk starts at
blen = slen * SECTOR; // compute the byte length of the chunk
// reset the table data
table[sidx] = 0;
table[sidx + CHUNKS] = htobe32(time(NULL)); // assign the current time to the timestamp, for correctness NOTE: might need to zero-out instead
table[sidx + CHUNKS] = cvt_htobe32(time(NULL)); // assign the current time to the timestamp, for correctness NOTE: might need to zero-out instead
// move the succeeding chunks over the deleted chunk
u8 *dst = buf + bidx - rmb;
@@ -131,12 +131,12 @@ usize mcx_delchunk_range(u8 *restrict buf, int start, int end)
assert(start < end && end < CHUNKS);
u32 table[TABLE];
memcpy(table, buf, sizeof(table));
u8 *dst = buf + (be32toh(table[start]) >> 8) * SECTOR;
u8 *src = buf + (be32toh(table[end]) >> 8) * SECTOR;
src += (be32toh(table[end]) & 0xFF) * SECTOR;
u8 *dst = buf + (cvt_be32toh(table[start]) >> 8) * SECTOR;
u8 *src = buf + (cvt_be32toh(table[end]) >> 8) * SECTOR;
src += (cvt_be32toh(table[end]) & 0xFF) * SECTOR;
// zeroes-out the chunk data within this range. (and set the timestamp)
u32 ts = htobe32(time(NULL));
u32 ts = cvt_htobe32(time(NULL));
for (int i = start; i <= end; i++) {
table[i] = 0;
table[i + CHUNKS] = ts;