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Cleanup

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This commit is contained in:
bnnm 2021-07-04 20:09:26 +02:00
parent 69bee5b9d4
commit 332587359b
1 changed files with 14 additions and 6 deletions
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20
src/streamfile.h
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@ -260,17 +260,24 @@ static inline float read_f32be_m(off_t offset, STREAMFILE* sf) {
return sample_float;
}
#endif
#if 0
// on GCC, this reader will be correctly optimized out (as long as it's static/inline), would be same as declaring:
// uintXX_t (*read_uXX)(off_t,uint8_t*) = be ? get_uXXbe : get_uXXle;
// only for the functions actually used in code, and inlined if possible (like big_endian param being a constant).
// on MSVC seems all read_X in sf_reader are compiled and included in the translation unit, plus ignores constants
// so may result on bloatness?
// (from godbolt tests, test more real cases)
/* collection of callbacks for quick access */
typedef struct sf_reader {
int32_t (*read_s32)(off_t,STREAMFILE*); //maybe s32
int32_t (*read_s32)(off_t,STREAMFILE*); //maybe r.s32
float (*read_f32)(off_t,STREAMFILE*);
/* ... */
} sf_reader;
void init_reader(sf_reader *r, int big_endian);
/* ... */
void sf_reader_init(sf_reader *r, int big_endian) {
static inline void sf_reader_init(sf_reader* r, int big_endian) {
memset(r, 0, sizeof(sf_reader));
if (big_endian) {
r->read_s32 = read_s32be;
@ -281,6 +288,7 @@ void sf_reader_init(sf_reader *r, int big_endian) {
r->read_f32 = read_f32le;
}
}
/* sf_reader r;
* ...
* sf_reader_init(&r, big_endian);
@ -326,12 +334,12 @@ static inline /*const*/ int is_id64be(off_t offset, STREAMFILE* sf, const char*
static inline int guess_endianness16bit(off_t offset, STREAMFILE* sf) {
uint8_t buf[0x02];
if (read_streamfile(buf, offset, 0x02, sf) != 0x02) return -1; /* ? */
return (uint16_t)get_16bitLE(buf) > (uint16_t)get_16bitBE(buf) ? 1 : 0;
return get_u16le(buf) > get_u16be(buf) ? 1 : 0;
}
static inline int guess_endianness32bit(off_t offset, STREAMFILE* sf) {
uint8_t buf[0x04];
if (read_streamfile(buf, offset, 0x04, sf) != 0x04) return -1; /* ? */
return (uint32_t)get_32bitLE(buf) > (uint32_t)get_32bitBE(buf) ? 1 : 0;
return get_u32le(buf) > get_u32be(buf) ? 1 : 0;
}
static inline size_t align_size_to_block(size_t value, size_t block_align) {