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libfreerdp-rfx: fix DWT mirror lifting.

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This commit is contained in:
Vic Lee 2011-09-03 23:45:21 +08:00
parent 9feff5da7c
commit 9b74b24087
1 changed files with 1 additions and 1 deletions
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libfreerdp-rfx/rfx_dwt.c
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@ -133,7 +133,7 @@ static void rfx_dwt_2d_encode_block(sint16* buffer, sint16* dwt, int subband_wid
src = buffer + y * total_width + x;
/* H */
*h = (src[total_width] - ((src[0] + src[n < subband_width - 1 ? 2 * total_width : total_width]) >> 1)) >> 1;
*h = (src[total_width] - ((src[0] + src[n < subband_width - 1 ? 2 * total_width : 0]) >> 1)) >> 1;
/* L */
*l = src[0] + (n == 0 ? *h : (*(h - total_width) + *h) >> 1);