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Qualitative speedup of decoding

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2965 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-11-18 09:45:29 +00:00
parent d2d9565a1a
commit 0daa53ca2a
1 changed files with 2 additions and 46 deletions
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48
libvo/vesa_lvo.c
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@ -162,57 +162,13 @@ uint32_t vlvo_draw_slice(uint8_t *image[], int stride[], int w,int h,int x,int y
src+=stride[2];
dest += bespitch2;
}
#elsif 0
/* vo_xv stuff: slightly better for YV12 on radeon_vid */
uint8_t *src;
uint8_t *dst;
int i;
dst = lvo_mem + image_width * y + x;
src = image[0];
if(w==stride[0] && w==image_width) memcpy(dst,src,w*h);
else
for(i=0;i<h;i++)
{
memcpy(dst,src,w);
src+=stride[0];
dst+=image_width;
}
x/=2;y/=2;w/=2;h/=2;
dst = lvo_mem + image_width * image_height + image_width/2 * y + x;
src = image[2];
if(w==stride[2] && w==image_width/2) memcpy(dst,src,w*h);
else
for(i=0;i<h;i++)
{
memcpy(dst,src,w);
src+=stride[2];
dst+=image_width/2;
}
dst = lvo_mem + image_width * image_height * 5 / 4 + image_width/2 * y + x;
src = image[1];
if(w==stride[1] && w==image_width/2) memcpy(dst,src,w*h);
else
for(i=0;i<h;i++)
{
memcpy(dst,src,w);
src+=stride[1];
dst+=image_width/2;
}
#else
uint8_t *src;
uint8_t *dst;
dst = lvo_mem + image_width * y + x;
src = image[0];
w <<= 1;
while(h--) {
memcpy(dst, src, w);
src += stride[0];
dst += stride[0];
}
w *= (image_bpp+7)/8;
memcpy(dst,src,w*h);
#endif
return 0;
}