From dc16b332f90ca133f1a8abe6b51bfc495908279b Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 22 Apr 2002 15:53:24 +0000
Subject: [PATCH] x1 deblocking filter bugfix
Originally committed as revision 5788 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
---
postproc/postprocess_template.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/postproc/postprocess_template.c b/postproc/postprocess_template.c
index d589e02d310..234ba8e891f 100644
--- a/postproc/postprocess_template.c
+++ b/postproc/postprocess_template.c
@@ -503,7 +503,6 @@ static inline void RENAME(vertX1Filter)(uint8_t *src, int stride, int QP)
asm volatile(
"pxor %%mm7, %%mm7 \n\t" // 0
-// "movq "MANGLE(b80)", %%mm6 \n\t" // MIN_SIGNED_BYTE
"leal (%0, %1), %%eax \n\t"
"leal (%%eax, %1, 4), %%ebx \n\t"
// 0 1 2 3 4 5 6 7 8 9
@@ -515,7 +514,7 @@ static inline void RENAME(vertX1Filter)(uint8_t *src, int stride, int QP)
"psubusb %%mm2, %%mm0 \n\t"
"por %%mm1, %%mm0 \n\t" // |l2 - l3|
"movq (%%ebx), %%mm3 \n\t" // line 5
- "movq (%%ebx, %1), %%mm4 \n\t" // line 6
+ "movq (%%ebx, %1), %%mm4 \n\t" // line 6
"movq %%mm3, %%mm5 \n\t" // line 5
"psubusb %%mm4, %%mm3 \n\t"
"psubusb %%mm5, %%mm4 \n\t"
@@ -529,7 +528,9 @@ static inline void RENAME(vertX1Filter)(uint8_t *src, int stride, int QP)
"por %%mm5, %%mm4 \n\t" // |l4 - l5|
"psubusb %%mm0, %%mm4 \n\t" //d = MAX(0, |l4-l5| - (|l2-l3| + |l5-l6|)/2)
"movq %%mm4, %%mm3 \n\t" // d
- "psubusb "MANGLE(pQPb)", %%mm4 \n\t"
+ "movq "MANGLE(pQPb)", %%mm0 \n\t"
+ "paddusb %%mm0, %%mm0 \n\t"
+ "psubusb %%mm0, %%mm4 \n\t"
"pcmpeqb %%mm7, %%mm4 \n\t" // d <= QP ? -1 : 0
"psubusb "MANGLE(b01)", %%mm3 \n\t"
"pand %%mm4, %%mm3 \n\t" // d <= QP ? d : 0
@@ -606,7 +607,7 @@ static inline void RENAME(vertX1Filter)(uint8_t *src, int stride, int QP)
int d= ABS(b) - ((ABS(a) + ABS(c))>>1);
d= MAX(d, 0);
- if(d < QP)
+ if(d < QP*2)
{
int v = d * SIGN(-b);
--
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