From f96829d2d00c9c2d0bcabcec821bdf6f13f4493a Mon Sep 17 00:00:00 2001
From: Ivo van Poorten <ivop@euronet.nl>
Date: Wed, 9 May 2007 17:29:20 +0000
Subject: [PATCH] Fix rgb15ToUV. Correct order of components and use one shift
less.
Originally committed as revision 23279 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
---
libswscale/swscale_template.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/libswscale/swscale_template.c b/libswscale/swscale_template.c
index 96d30afa0b5..21fb4e8f165 100644
--- a/libswscale/swscale_template.c
+++ b/libswscale/swscale_template.c
@@ -2265,14 +2265,11 @@ static inline void RENAME(rgb15ToUV)(uint8_t *dstU, uint8_t *dstV, uint8_t *src1
int d0= ((uint32_t*)src1)[i];
int dl= (d0&0x03E07C1F);
- int dh= ((d0>>5)&0x03E0F81F);
-
- int dh2= (dh>>11) + (dh<<21);
- int d= dh2 + dl;
+ int d= dl + (((d0>>16) + (d0<<16))&0x03E07C1F);
- int g= d&0x7F;
- int r= (d>>10)&0x7F;
- int b= d>>21;
+ int r= d&0x3F;
+ int b= (d>>10)&0x3F;
+ int g= d>>21;
dstU[i]= ((RU*r + GU*g + BU*b)>>(RGB2YUV_SHIFT+1-3)) + 128;
dstV[i]= ((RV*r + GV*g + BV*b)>>(RGB2YUV_SHIFT+1-3)) + 128;
}
--
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