libvo/fastmemcpy.h

   1 #ifndef __MPLAYER_MEMCPY
   2 #define __MPLAYER_MEMCPY 1
   3
   4 #include "config.h"
   5
   6 #ifdef USE_FASTMEMCPY
   7 #if defined(HAVE_MMX) || defined(HAVE_MMX2) || defined(HAVE_3DNOW) \
   8 /*    || defined(HAVE_SSE) || defined(HAVE_SSE2) */
   9 #include <stddef.h>
  10
  11 extern void * fast_memcpy(void * to, const void * from, size_t len);
  12 extern void * mem2agpcpy(void * to, const void * from, size_t len);
  13 #define memcpy(a,b,c) fast_memcpy(a,b,c)
  14
  15 #else /* HAVE_MMX/MMX2/3DNOW/SSE/SSE2 */
  16 #define mem2agpcpy(a,b,c) memcpy(a,b,c)
  17 #endif
  18
  19 #else /* USE_FASTMEMCPY */
  20 #define mem2agpcpy(a,b,c) memcpy(a,b,c)
  21 #endif
  22
  23 static inline void * mem2agpcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride)
  24 {
  25         int i;
  26         void *retval=dst;
  27
  28         if(dstStride == srcStride)
  29         {
  30                 if (srcStride < 0) {
  31                         src += (height-1)*srcStride;
  32                         dst += (height-1)*dstStride;
  33                         srcStride = -srcStride;
  34                 }
  35
  36                 mem2agpcpy(dst, src, srcStride*height);
  37         }
  38         else
  39         {
  40                 for(i=0; i<height; i++)
  41                 {
  42                         mem2agpcpy(dst, src, bytesPerLine);
  43                         src+= srcStride;
  44                         dst+= dstStride;
  45                 }
  46         }
  47
  48         return retval;
  49 }
  50
  51 static inline void * memcpy_pic(void * dst, const void * src, int bytesPerLine, int height, int dstStride, int srcStride)
  52 {
  53         int i;
  54         void *retval=dst;
  55
  56         if(dstStride == srcStride)
  57         {
  58                 if (srcStride < 0) {
  59                         src += (height-1)*srcStride;
  60                         dst += (height-1)*dstStride;
  61                         srcStride = -srcStride;
  62                 }
  63
  64                 memcpy(dst, src, srcStride*height);
  65         }
  66         else
  67         {
  68                 for(i=0; i<height; i++)
  69                 {
  70                         memcpy(dst, src, bytesPerLine);
  71                         src+= srcStride;
  72                         dst+= dstStride;
  73                 }
  74         }
  75
  76         return retval;
  77 }
  78
  79 #endif