libvo: remove custom assembler memcpy implementations (aka fastmemcpy)

aclib[_template].c contained inline assembler versions of memcpy using
MMX/SSE/3dnow etc. instructions. It's possible that this gave quite a
speed a decade ago, but it's unlikely to have any use on modern
systems. Also, libc implementations already have their own
optimizations for the native memcpy function.

I did not verify my assumptions eith benchmarks, so I could be wrong.

Also note that some platforms have extremely crappy libc
implementations, and it's well possible that these might suffer from a
major performance loss (hello Windows). Unfortunately, I do not care.

1 files changed, 6 insertions, 11 deletions

diff --git a/libvo/fastmemcpy.h b/libvo/fastmemcpy.h
index f03287564f..bc83abb5d5 100644
--- a/libvo/fastmemcpy.h
+++ b/libvo/fastmemcpy.h
@@ -24,13 +24,8 @@
 #include <string.h>
 #include <stddef.h>
 
-void * fast_memcpy(void * to, const void * from, size_t len);
-void * mem2agpcpy(void * to, const void * from, size_t len);
-
-#if ! defined(CONFIG_FASTMEMCPY) || ! (HAVE_MMX || HAVE_MMX2 || HAVE_AMD3DNOW /* || HAVE_SSE || HAVE_SSE2 */)
-#define mem2agpcpy(a,b,c) memcpy(a,b,c)
-#define fast_memcpy(a,b,c) memcpy(a,b,c)
-#endif
+// meaningless ancient alias
+#define fast_memcpy memcpy
 
 static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride)
 {
@@ -45,13 +40,13 @@ static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLi
 	    		srcStride = -srcStride;
 		}
 
-		mem2agpcpy(dst, src, srcStride*height);
+		memcpy(dst, src, srcStride*height);
 	}
 	else
 	{
 		for(i=0; i<height; i++)
 		{
-			mem2agpcpy(dst, src, bytesPerLine);
+			memcpy(dst, src, bytesPerLine);
 			src = (uint8_t*)src + srcStride;
 			dst = (uint8_t*)dst + dstStride;
 		}
@@ -82,13 +77,13 @@ static inline void * memcpy_pic2(void * dst, const void * src,
 	    		srcStride = -srcStride;
 		}
 
-		fast_memcpy(dst, src, srcStride*height);
+		memcpy(dst, src, srcStride*height);
 	}
 	else
 	{
 		for(i=0; i<height; i++)
 		{
-			fast_memcpy(dst, src, bytesPerLine);
+			memcpy(dst, src, bytesPerLine);
 			src = (uint8_t*)src + srcStride;
 			dst = (uint8_t*)dst + dstStride;
 		}