Fix rgb32tobgr16, rgb32to15, and rgb32tobgr15. All had the same problem that

was fixed in rgb32to16 about a year ago: using only the first 8 bits of the
32-bit pixel.

Originally committed as revision 17671 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc

postproc/rgb2rgb_template.c

@@ -468,8 +468,8 @@ static inline void RENAME(rgb32tobgr16)(const uint8_t *src, uint8_t *dst, long s
 #endif
 	while(s < end)
 	{
-		const int src= *s; s += 4;
-		*d++ = ((src&0xF8)<<8) + ((src&0xFC00)>>5) + ((src&0xF80000)>>19);
+		register int rgb = *(uint32_t*)s; s += 4;
+		*d++ = ((rgb&0xF8)<<8) + ((rgb&0xFC00)>>5) + ((rgb&0xF80000)>>19);
 	}
 }
 
@@ -564,8 +564,8 @@ static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, long src_
 #endif
 	while(s < end)
 	{
-		const int src= *s; s += 4;
-		*d++ = ((src&0xFF)>>3) + ((src&0xF800)>>6) + ((src&0xF80000)>>9);
+		register int rgb = *(uint32_t*)s; s += 4;
+		*d++ = ((rgb&0xFF)>>3) + ((rgb&0xF800)>>6) + ((rgb&0xF80000)>>9);
 	}
 }
 
@@ -625,8 +625,8 @@ static inline void RENAME(rgb32tobgr15)(const uint8_t *src, uint8_t *dst, long s
 #endif
 	while(s < end)
 	{
-		const int src= *s; s += 4;
-		*d++ = ((src&0xF8)<<7) + ((src&0xF800)>>6) + ((src&0xF80000)>>19);
+		register int rgb = *(uint32_t*)s; s += 4;
+		*d++ = ((rgb&0xF8)<<7) + ((rgb&0xF800)>>6) + ((rgb&0xF80000)>>19);
 	}
 }