From 586a2a05babb14501ebfde75ae75fd0b6bd7c820 Mon Sep 17 00:00:00 2001
From: "sgunderson@bigfoot.com" <>
Date: Sun, 3 Feb 2008 18:48:11 +0100
Subject: [PATCH] Do rounding.

---
 qscale.c | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/qscale.c b/qscale.c
index 7943f90..f3f0fa9 100644
--- a/qscale.c
+++ b/qscale.c
@@ -101,25 +101,28 @@ void hscale(float *pix, unsigned char *npix, unsigned w, unsigned h, unsigned nw
 		unsigned char *dptr = npix + y*dstride;
 		unsigned char ch;
 		for (x = 0; x < nw; ++x) {
+			int result;
 			float acc;
 			int tmp;
 			static const float low = 0.0, high = 255.0;
 			asm (
-				"pxor %0, %0               \n"
-				"xor %1, %1                \n"
+				"pxor %1, %1               \n"
+				"xor %2, %2                \n"
 				".lbl2:                    \n"
-				"movups (%3,%1),%%xmm1     \n"
-				"movups (%2,%1),%%xmm2     \n"
+				"movups (%4,%2),%%xmm1     \n"
+				"movups (%3,%2),%%xmm2     \n"
 				"mulps %%xmm2,%%xmm1       \n"
-				"addps %%xmm1,%0           \n"
-				"addl $16,%1              \n"
-				"dec %4                    \n"
+				"addps %%xmm1,%1           \n"
+				"addl $16,%2               \n"
+				"dec %5                    \n"
 				"jnz .lbl2                 \n"
-				"haddps %0,%0              \n"
-				"haddps %0,%0              \n"
-				"maxss %5,%0               \n"
-				"minss %6,%0               \n"
-				: "=&x" (acc),
+				"haddps %1,%1              \n"
+				"haddps %1,%1              \n"
+				"maxss %6,%1               \n"
+				"minss %7,%1               \n"
+				"cvtss2si %1,%0            \n"
+				: "=r" (result),
+				  "=&x" (acc),
 				  "=&r" (tmp)
 				: "r" (&coeffs[pd[x].startcoeff]),
 				  "r" (&sptr[pd[x].start]),
@@ -138,7 +141,7 @@ void hscale(float *pix, unsigned char *npix, unsigned w, unsigned h, unsigned nw
 				ch = (unsigned char)acc;
 			*dptr++ = ch;
 #endif
-			*dptr++ = (unsigned char)acc;
+			*dptr++ = (unsigned char)result;
 		}
 		ch = dptr[-1];
 		for ( ; x < dstride; ++x) {
-- 
2.39.2