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lifegpc
2022-01-13 19:51:16 +08:00
parent b064cb7f5c
commit fc9a3faa56
6 changed files with 244 additions and 0 deletions
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44
file_reader.c
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@@ -94,6 +94,46 @@ int file_reader_read_char(file_reader_file* f, char* re) {
return 0;
}
int file_reader_read_double(file_reader_file* f, double* re) {
if (!f) return 1;
int64_t offset = f->tell(f->f);
double r = 0;
int origin = SEEK_SET;
if (offset == -1) {
origin = SEEK_CUR;
}
size_t c;
uint8_t buf[8];
if ((c = f->read(f->f, 8, buf)) < 8) {
if (origin == SEEK_CUR) offset = -c;
f->seek(f->f, offset, origin);
return 1;
}
r = cstr_read_double(buf, f->endian);
if (re) *re = r;
return 0;
}
int file_reader_read_float(file_reader_file* f, float* re) {
if (!f) return 1;
int64_t offset = f->tell(f->f);
float r = 0;
int origin = SEEK_SET;
if (offset == -1) {
origin = SEEK_CUR;
}
size_t c;
uint8_t buf[4];
if ((c = f->read(f->f, 4, buf)) < 4) {
if (origin == SEEK_CUR) offset = -c;
f->seek(f->f, offset, origin);
return 1;
}
r = cstr_read_float(buf, f->endian);
if (re) *re = r;
return 0;
}
int file_reader_read_uint8(file_reader_file* f, uint8_t* re) {
return file_reader_read_char(f, (char*)re);
}
@@ -118,6 +158,10 @@ int file_reader_read_int16(file_reader_file* f, int16_t* re) {
return 0;
}
int file_reader_read_uint16(file_reader_file* f, uint16_t* re) {
return file_reader_read_int16(f, (int16_t*)re);
}
int file_reader_read_int32(file_reader_file* f, int32_t* re) {
if (!f) return 1;
int64_t offset = f->tell(f->f);