diff options
Diffstat (limited to 'binfile.c')
| -rw-r--r-- | binfile.c | 62 |
1 files changed, 60 insertions, 2 deletions
@@ -19,7 +19,13 @@ static inline void write_u8(FILE *fp, U8 u8) { #endif } -static void write_char(FILE *fp, char c) { +#undef BINFILE_PRINT /* don't need it anymore */ + +static inline U8 read_u8(FILE *fp) { + return (U8)getc(fp); +} + +static inline void write_char(FILE *fp, char c) { #ifdef TOC_DEBUG /* mayyybe this'd do the wrong thing for negative characters on systems where char is signed? */ write_u8(fp, (U8)c); @@ -28,12 +34,19 @@ static void write_char(FILE *fp, char c) { #endif } -#undef BINFILE_PRINT /* don't need it anymore */ +static inline char read_char(FILE *fp) { + return (char)getc(fp); +} static inline void write_i8(FILE *fp, I8 i8) { write_u8(fp, (U8)i8); } +static inline I8 read_i8(FILE *fp) { + U8 u8 = read_u8(fp); + return (I8)((u8 & (1<<7)) ? -(1 + ~u8) : u8); +} + /* note: a bit of testing seems to reveal that the portable versions for u16/32 are faster than fwrite (but this is not the case for u64). @@ -44,19 +57,41 @@ static inline void write_u16(FILE *fp, U16 u16) { write_u8(fp, (U8)(u16 >> 8)); } +static inline U16 read_u16(FILE *fp) { + U8 a = read_u8(fp); + U8 b = read_u8(fp); + return (U16)(a + (((U16)b) << 8)); +} + static inline void write_i16(FILE *fp, I16 i16) { write_u16(fp, (U16)i16); } +static inline I16 read_i16(FILE *fp) { + U16 u16 = read_u16(fp); + return (I16)((u16 & (1U<<15)) ? -(1 + ~u16) : u16); +} + static inline void write_u32(FILE *fp, U32 u32) { write_u16(fp, u32 & 0xFFFF); write_u16(fp, (U16)(u32 >> 16)); } +static inline U32 read_u32(FILE *fp) { + U16 a = read_u16(fp); + U16 b = read_u16(fp); + return (U32)(a + (((U32)b << 16))); +} + static inline void write_i32(FILE *fp, I32 i32) { write_u32(fp, (U32)i32); } +static inline I32 read_i32(FILE *fp) { + U32 u32 = read_u32(fp); + return (I32)((u32 & (1UL<<31)) ? -(1 + ~u32) : u32); +} + static void write_u64(FILE *fp, U64 u64) { #if BINFILE_PORTABLE write_u32(fp, u64 & 0xFFFFFFFF); @@ -66,6 +101,18 @@ static void write_u64(FILE *fp, U64 u64) { #endif } +static U64 read_u64(FILE *fp) { +#if BINFILE_PORTABLE + U32 a = read_u32(fp); + U32 b = read_u32(fp); + return (U64)(a + (((U64)b << 32))); +#else + U64 x; + fread(&x, sizeof x, 1, fp); + return x; +#endif +} + static inline void write_i64(FILE *fp, I64 i64) { #if BINFILE_PORTABLE write_u64(fp, (U64)i64); @@ -74,6 +121,17 @@ static inline void write_i64(FILE *fp, I64 i64) { #endif } +static inline I64 read_i64(FILE *fp) { +#ifdef BINFILE_PORTABLE + U64 u64 = read_u64(fp); + return (I64)((u64 & ((U64)1<<63)) ? -(1 + ~u64) : u64); +#else + I64 x; + fread(&x, sizeof x, 1, fp); + return x; +#endif +} + static void write_f32(FILE *fp, F32 f32) { #if BINFILE_PORTABLE /* writes as IEEE 754 32-bit floating-point number, little endian */ |