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10 Commits
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Author SHA1 Message Date
Quinn
21f4d04a21 start writing code for decompressing chunk data. 
I still haven't much of an idea where I'll take this, but it's a start.

I know it is needed for block filtering and such, I still need to find a
way how I'll actually implement it.
 2025-09-10 10:13:26 +02:00
Quinn
017df1bee4 rework error.h, to decrease impact on binary size. 
We were statically creating a new string per log message, so re-using
the same message would cause duplicate byte sizes.
Now, all prefixes / suffixes are only defined once, the file name is
defined once per file, the line number should be defined once per unique
line.
This just saves some memory in the final binary, allowing things to be
optimised a little better.
 2025-09-10 10:13:26 +02:00
Quinn
d933931829 fix: shouldn't multiply by CHUNKS, but by SECTOR 2025-09-10 10:13:26 +02:00
Quinn
f020347f71 change mvchunks parameter order, to be a bit more clear and consistent with functions such as memmove 2025-09-10 10:13:26 +02:00
Quinn
b13de01f24 fix: violating strict aliasing rules in most areas in the new code. 
Yes, I am aware there are plenty of violations in `conf.c`, but I'll
likely fix/rewrite those when I will use it. Since there are some other
changes I think I'll want to make.
 2025-09-10 10:13:26 +02:00
Quinn
3a0704710c add a flag when debugging to generate SIGFPE when signed integer overflow occurs. (this is UB) 2025-09-10 10:13:26 +02:00
Quinn
b72b8eaee1 add comments to point at where strict aliasing rule violations occur in data scripts 
this is definitely not all of them, a thorough rewrite must take place
to fix as many as we can.
 2025-09-10 10:13:26 +02:00
Quinn
55635d44ae delete redundant COLOUR32 definitions 2025-09-10 10:13:26 +02:00
Quinn
4fa0b41e7a add quit in main.c to atexit, for added safety 2025-09-10 10:13:26 +02:00
Quinn
8a5afd6915 write a portable version of endian.h, to replace the system's endian.h. 
utilising GNU C standard library for some of the functionality, or GNU C
extensions.
 2025-09-10 10:13:26 +02:00
2 changed files with 13 additions and 13 deletions
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24
include/endian.h
View File

@@ -16,19 +16,19 @@
#define htole16(x) (x)
#define htole32(x) (x)
#define htole64(x) (x)
#define be16toh(x) __bswap16(x)
#define be32toh(x) __bswap32(x)
#define be64toh(x) __bswap64(x)
#define htobe16(x) __bswap16(x)
#define htobe32(x) __bswap32(x)
#define htobe64(x) __bswap64(x)
#define be16toh(x) __bswap_16(x)
#define be32toh(x) __bswap_32(x)
#define be64toh(x) __bswap_64(x)
#define htobe16(x) __bswap_16(x)
#define htobe32(x) __bswap_32(x)
#define htobe64(x) __bswap_64(x)
#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define le16toh(x) __bswap16(x)
#define le32toh(x) __bswap32(x)
#define le64toh(x) __bswap64(x)
#define htole16(x) __bswap16(x)
#define htole32(x) __bswap32(x)
#define htole64(x) __bswap64(x)
#define le16toh(x) __bswap_16(x)
#define le32toh(x) __bswap_32(x)
#define le64toh(x) __bswap_64(x)
#define htole16(x) __bswap_16(x)
#define htole32(x) __bswap_32(x)
#define htole64(x) __bswap_64(x)
#define be16toh(x) (x)
#define be32toh(x) (x)
#define be64toh(x) (x)

2
makefile
View File

@@ -51,7 +51,7 @@ PROF = rel
CFLAGS += -DNDEBUG -O2
endif
CFLAGS += $(shell pkg-config --cflags glfw3 libarchive) -Ilib/include -Ilib/glad/include
CFLAGS += $(shell pkg-config --cflags glfw3 libarchive) -Iinclude -Ilib/glad/include
LDFLAGS += $(shell pkg-config --libs glfw3 libarchive) -lm
# get source files