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//
// h64e-model.c
// H64E-2
//
// Created by dianshi on 3/13/20.
// Copyright © 2020 dianshi. All rights reserved.
//
#include "h64e-model.h"
int h64e_si_init(H64E_stream_in *in, int32_t size)
{
in->size = size;
in->cur_size = 0;
in->buf = malloc(size);
return 0;
}
//return amount of copied bytes
int h64e_si_data_in(H64E_stream_in *in, uint8_t *data, int32_t size)
{
int32_t start = in->cur_size;
int32_t end = start+size;
int32_t len = 0;
if (end > in->size)
{
end = in->size;
}
len = end-start;
memcpy(&in->buf[start], data, len);
in->cur_size += len;
return (int)len;
}
int h64e_si_data_out(H64E_stream_in *in, uint8_t *data, int32_t size)
{
int32_t len=0;
int32_t i=0;
if (size < in->cur_size)
{
len = size;
} else {
len = in->cur_size;
}
//memcpy(data,&in->buf[0],len);
for (i=0;i<len;i++)
{
data[i] = in->buf[i];
}
memmove(&in->buf[0],&in->buf[len],len);
in->cur_size -= len;
return len;
}
int h64e_si_len(H64E_stream_in *in)
{
return in->cur_size;
}
int h64e_so_init(H64E_stream_out *out, int32_t size)
{
out->size = size;
out->cur_size = 0;
out->buf = malloc(size);
return 0;
}
int h64e_so_data_in(H64E_stream_out *out, uint8_t *data, int32_t size)
{
int32_t start = out->cur_size;
int32_t end = start+size;
int32_t len = 0;
if (end > out->size)
{
end = out->size;
}
len = end-start;
memcpy(&out->buf[start], data, len);
out->cur_size += len;
return (int)len;
}
int h64e_so_data_out(H64E_stream_out *out, uint8_t *data, int32_t size)
{
int32_t len=0;
int32_t i=0;
if (size < out->cur_size)
{
len = size;
} else {
len = out->cur_size;
}
//memcpy(data,&in->buf[0],len);
for (i=0;i<len;i++)
{
data[i] = out->buf[i];
}
memmove(&out->buf[0],&out->buf[len],len);
out->cur_size -= len;
return len;
}
int h64e_so_ready(H64E_stream_out *out)
{
int ret = 0;
return ret;
}
int h64e_so_len(H64E_stream_out *out)
{
return out->cur_size;
}
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