"Fossies" - the Fresh Open Source Software archive

Member "gnusound-0.7.5/src/lib/fastmemcpy.h" of archive gnusound-0.7.5.tar.gz:

#ifndef __MPLAYER_MEMCPY
#define __MPLAYER_MEMCPY 1

#include "../config.h"

#ifdef TESTING
#define USE_FASTMEMCPY
#define HAVE_MMX
#define HAVE_MMX2
#endif

#ifdef USE_FASTMEMCPY
#if defined(HAVE_MMX) || defined(HAVE_MMX2) || defined(HAVE_3DNOW) \
/*    || defined(HAVE_SSE) || defined(HAVE_SSE2) */
#include <stddef.h>
/*
extern void *fast_memcpy_SSE(void *to, const void *from, size_t len);
extern void *fast_memcpy_MMX(void *to, const void *from, size_t len);
extern void *fast_memcpy_MMX2(void *to, const void *from, size_t len);
extern void *fast_memcpy_3DNow(void *to, const void *from, size_t len);
*/
extern void * fast_memcpy(void * to, const void * from, size_t len);
extern void * mem2agpcpy(void * to, const void * from, size_t len);
#ifndef TESTING
#define memcpy(a,b,c) fast_memcpy(a,b,c)
#endif

#else /* HAVE_MMX/MMX2/3DNOW/SSE/SSE2 */
#define mem2agpcpy(a,b,c) memcpy(a,b,c)
#endif

#else /* USE_FASTMEMCPY */
#define mem2agpcpy(a,b,c) memcpy(a,b,c)
#endif

static inline void * mem2agpcpy_pic(void * dst, void * src, int bytesPerLine, int height, int dstStride, int srcStride)
{
	int i;
	void *retval=dst;

	if(dstStride == srcStride) mem2agpcpy(dst, src, srcStride*height);
	else
	{
		for(i=0; i<height; i++)
		{
			mem2agpcpy(dst, src, bytesPerLine);
			src+= srcStride;
			dst+= dstStride;
		}
	}

	return retval;
}

static inline void * memcpy_pic(void * dst, void * src, int bytesPerLine, int height, int dstStride, int srcStride)
{
	int i;
	void *retval=dst;

	if(dstStride == srcStride) memcpy(dst, src, srcStride*height);
	else
	{
		for(i=0; i<height; i++)
		{
			memcpy(dst, src, bytesPerLine);
			src+= srcStride;
			dst+= dstStride;
		}
	}

	return retval;
}

#endif