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finished with base?

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ed
2025-02-07 17:11:28 -05:00
parent 4ba6e69156
commit d7498d9511
13 changed files with 268 additions and 122 deletions
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code/base/ring.h
+36 -3
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@@ -6,8 +6,41 @@
////////////////////////////////
//~ rjf: Non-Fancy Ring Buffer Reads/Writes
internal U64 ring_write(U8*ring_base, U64 ring_size, U64 ring_pos, void* src_data, U64 src_data_size);
internal U64 ring_read (U8*ring_base, U64 ring_size, U64 ring_pos, void* dst_data, U64 read_size);
U64 ring_write(U8* ring_base, U64 ring_size, U64 ring_pos, void* src_data, U64 src_data_size);
U64 ring_read (U8* ring_base, U64 ring_size, U64 ring_pos, void* dst_data, U64 read_size);
#define ring_write_struct(ring_base, ring_size, ring_pos, ptr) ring_write((ring_base), (ring_size), (ring_pos), (ptr), sizeof(*(ptr)))
#define ring_read_struct(ring_base, ring_size, ring_pos, ptr) ring_read((ring_base), (ring_size), (ring_pos), (ptr), sizeof(*(ptr)))
#define ring_read_struct(ring_base, ring_size, ring_pos, ptr) ring_read ((ring_base), (ring_size), (ring_pos), (ptr), sizeof(*(ptr)))
////////////////////////////////
//~ rjf: Non-Fancy Ring Buffer Reads/Writes
inline U64
ring_write(U8* ring_base, U64 ring_size, U64 ring_pos, void* src_data, U64 src_data_size) {
assert(src_data_size <= ring_size);
{
U64 ring_off = ring_pos % ring_size;
U64 bytes_before_split = ring_size - ring_off;
U64 pre_split_bytes = min(bytes_before_split, src_data_size);
U64 pst_split_bytes = src_data_size - pre_split_bytes;
void* pre_split_data = src_data;
void* pst_split_data = ((U8*)src_data + pre_split_bytes);
memory_copy(ring_base + ring_off, pre_split_data, pre_split_bytes);
memory_copy(ring_base + 0, pst_split_data, pst_split_bytes);
}
return src_data_size;
}
inline U64
ring_read(U8* ring_base, U64 ring_size, U64 ring_pos, void* dst_data, U64 read_size) {
assert(read_size <= ring_size);
{
U64 ring_off = ring_pos % ring_size;
U64 bytes_before_split = ring_size-ring_off;
U64 pre_split_bytes = min(bytes_before_split, read_size);
U64 pst_split_bytes = read_size - pre_split_bytes;
memory_copy(dst_data, ring_base+ring_off, pre_split_bytes);
memory_copy((U8*)dst_data + pre_split_bytes, ring_base + 0, pst_split_bytes);
}
return read_size;
}