libidx-c

C library for IDX file format
git clone https://git.sinitax.com/sinitax/libidx-c
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idx.h (1133B)

      1#pragma once
      2
      3#include "allocator.h"
      4
      5#include <stdint.h>
      6#include <stddef.h>
      7
      8enum {
      9	IDX_TYPE_UNKNOWN = -1,
     10	IDX_TYPE_UNSIGNED_BYTE,
     11	IDX_TYPE_SIGNED_BYTE,
     12	IDX_TYPE_SHORT,
     13	IDX_TYPE_INT,
     14	IDX_TYPE_FLOAT,
     15	IDX_TYPE_DOUBLE,
     16	IDX_TYPE_COUNT,
     17};
     18
     19enum {
     20	IDX_OK,
     21	IDX_BAD_PARAM,
     22	IDX_FILE_ACCESS,
     23	IDX_FILE_BAD_MAGIC,
     24	IDX_FILE_BAD_TYPE,
     25	IDX_FILE_BAD_DIMS,
     26	IDX_FILE_WRITE_MAGIC,
     27	IDX_FILE_WRITE_DIMS,
     28	IDX_FILE_WRITE_DATA,
     29	IDX_FILE_READ_MAGIC,
     30	IDX_FILE_READ_DIMS,
     31	IDX_FILE_READ_DATA,
     32};
     33
     34struct idx {
     35	struct {
     36		int val;
     37		uint8_t size;
     38	} type;
     39
     40	struct {
     41		void *data;
     42		size_t len;
     43	} buf;
     44
     45	struct {
     46		uint8_t count;
     47		uint32_t *sizes;
     48	} dims;
     49
     50	const struct allocator *allocator;
     51};
     52
     53int idx_new(struct idx *idx, uint8_t dims_count, uint32_t *dims,
     54	int data_type, const struct allocator *allocator);
     55int idx_wrap(struct idx *idx, void *data, uint8_t dims_count,
     56	uint32_t *dims, int data_type);
     57
     58int idx_load(struct idx *idx, const char *filename,
     59	const struct allocator *allocator);
     60int idx_save(struct idx *idx, const char *filename);
     61
     62int idx_deinit(struct idx *idx);
     63
     64void *idx_get(struct idx *idx, int dims, ...);
     65