luboslenco
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
|
|
#ifdef WITH_COMPRESS
|
|
|
|
#include "iron_compress.h"
|
|
#include <stdlib.h>
|
|
|
|
#define SDEFL_IMPLEMENTATION
|
|
#include "sdefl.h"
|
|
#define SINFL_IMPLEMENTATION
|
|
#include "sinfl.h"
|
|
|
|
buffer_t *iron_inflate(buffer_t *bytes, bool raw) {
|
|
unsigned char *inflated = NULL;
|
|
int inflated_len = bytes->length * 2;
|
|
int out_len;
|
|
while (1) {
|
|
inflated = (unsigned char *)realloc(inflated, inflated_len);
|
|
out_len = raw ? sinflate(inflated, inflated_len, bytes->buffer, bytes->length) : zsinflate(inflated, inflated_len, bytes->buffer, bytes->length);
|
|
if (out_len >= 0 && out_len < inflated_len) {
|
|
break;
|
|
}
|
|
inflated_len *= 2;
|
|
}
|
|
buffer_t *output = buffer_create(0);
|
|
output->buffer = inflated;
|
|
output->length = out_len;
|
|
return output;
|
|
}
|
|
|
|
buffer_t *iron_deflate(buffer_t *bytes, bool raw) {
|
|
struct sdefl sdefl;
|
|
memset(&sdefl, 0, sizeof(sdefl));
|
|
void *deflated = malloc(sdefl_bound(bytes->length));
|
|
int out_len = raw ? sdeflate(&sdefl, deflated, bytes->buffer, bytes->length, SDEFL_LVL_MIN)
|
|
: zsdeflate(&sdefl, deflated, bytes->buffer, bytes->length, SDEFL_LVL_MIN);
|
|
buffer_t *output = buffer_create(0);
|
|
output->buffer = deflated;
|
|
output->length = out_len;
|
|
return output;
|
|
}
|
|
|
|
unsigned char *iron_deflate_raw(unsigned char *data, int data_len, int *out_len, int quality) {
|
|
struct sdefl sdefl;
|
|
memset(&sdefl, 0, sizeof(sdefl));
|
|
void *deflated = malloc(sdefl_bound(data_len));
|
|
*out_len = zsdeflate(&sdefl, deflated, data, data_len, SDEFL_LVL_MIN);
|
|
return (unsigned char *)deflated;
|
|
}
|
|
|
|
#endif
|