#include <inttypes.h>
#include <xxhash.h>
#include <pthread.h>
#include <utils.h>

extern void*        XXH32_init_SSE4   (unsigned int seed);
extern int          XXH32_feed_SSE4   (void* state, const void* input, int len);
extern unsigned int XXH32_result_SSE4 (void* state);
extern unsigned int XXH32_getIntermediateResult_SSE4 (void* state);
extern unsigned int XXH32_SSE4 (const void* input, int len, unsigned int seed);

extern void*        XXH32_init_SSE2   (unsigned int seed);
extern int          XXH32_feed_SSE2   (void* state, const void* input, int len);
extern unsigned int XXH32_result_SSE2 (void* state);
extern unsigned int XXH32_getIntermediateResult_SSE2 (void* state);
extern unsigned int XXH32_SSE2 (const void* input, int len, unsigned int seed);

unsigned int (*xxh32)(const void* input, int len, unsigned int seed) = NULL;
void * (*xxh32_init)(unsigned int seed) = NULL;
int (*xxh32_feed)(void* state, const void* input, int len) = NULL;
unsigned int (*xxh32_result)(void* state) = NULL;
unsigned int (*xxh32_getIntermediateResult)(void* state) = NULL;

void
XXH32_module_init() {
	if (proc_info.sse_level >= 4) {
		xxh32 = XXH32_SSE4;
		xxh32_init = XXH32_init_SSE4;
		xxh32_feed = XXH32_feed_SSE4;
		xxh32_result = XXH32_result_SSE4;
		xxh32_getIntermediateResult = XXH32_getIntermediateResult_SSE4;
	} else {
		xxh32 = XXH32_SSE2;
		xxh32_init = XXH32_init_SSE2;
		xxh32_feed = XXH32_feed_SSE2;
		xxh32_result = XXH32_result_SSE2;
		xxh32_getIntermediateResult = XXH32_getIntermediateResult_SSE2;
	}
}

unsigned int
XXH32(const void* input, int len, unsigned int seed)
{
	return xxh32(input, len, seed);
}

void*
XXH32_init(unsigned int seed)
{
	return xxh32_init(seed);
}

int
XXH32_feed(void* state, const void* input, int len)
{
	return xxh32_feed(state, input, len);
}

unsigned int
XXH32_result(void* state)
{
	return xxh32_result(state);
}

unsigned int
XXH32_getIntermediateResult(void* state)
{
	return xxh32_getIntermediateResult(state);
}