//整体乘法接口
UINT32 galois_single_multiply(UINT32 x,UINT32 y,UINT32 w)//整体乘法接口
{
UINT32 sindex,res;
if(x==0||y==0) return 0;
sindex=mult_type[w];
switch(sindex)
{
case TABLE:
//检测multable的情况
if(galois_mult_tables[w]==NULL)//如果不存在
{
res=galois_multtable_create(w);
if(res==FALSE)//生成失败
{
show_error("galois","multiply","tablecreatefail");
return FALSE;
}
}
return galois_multtable_multiply(x,y,w);
break;
case LOGS:
if(galois_log_tables[w]==NULL)
{
res=galois_logtable_create(w);
if(res==FALSE)
{
show_error("galois","logtables","toobig");
return FALSE;
}
}
return galois_log_multiply(x,y,w);
break;
case SHIFT:
return galois_shift_multiply(x,y,w);
break;
case SPLITW8:
if(galois_split_w8[0]==NULL)//和上面的操作一样
{
res=galois_create_split_w8_table();
if(res==NULL)
{
show_error("galois","splittables","toobig");
return FALSE;
}
}
return galois_split_w8_multiply(x,y);
break;
}
}
/*
* Class: eu_vandertil_jerasure_jni_Galois
* Method: galois_multtable_multiply
* Signature: (III)I
*/
JNIEXPORT jint JNICALL Java_eu_vandertil_jerasure_jni_Galois_galois_1multtable_1multiply
(JNIEnv *env, jclass clazz, jint x, jint y, jint w)
{
return galois_multtable_multiply(x, y, w);
}
