Update libjpeg-turbo to r722.

tjunittest.c

Index: tjunittest.c
===================================================================
--- tjunittest.c	(revision 106486)
+++ tjunittest.c	(working copy)
@@ -68,6 +68,8 @@
 	"RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "Grayscale"
 };
 
+const int alphaOffset[TJ_NUMPF] = {-1, -1, 3, 3, 0, 0, -1};
+
 const int _3byteFormats[]={TJPF_RGB, TJPF_BGR};
 const int _4byteFormats[]={TJPF_RGBX, TJPF_BGRX, TJPF_XBGR, TJPF_XRGB};
 const int _onlyGray[]={TJPF_GRAY};
@@ -156,6 +158,7 @@
 	int roffset=tjRedOffset[pf];
 	int goffset=tjGreenOffset[pf];
 	int boffset=tjBlueOffset[pf];
+	int aoffset=alphaOffset[pf];
 	int ps=tjPixelSize[pf];
 	int index, row, col, retval=1;
 	int halfway=16*sf.num/sf.denom;
@@ -165,12 +168,13 @@
 	{
 		for(col=0; col<w; col++)
 		{
-			unsigned char r, g, b;
+			unsigned char r, g, b, a;
 			if(flags&TJFLAG_BOTTOMUP) index=(h-row-1)*w+col;
 			else index=row*w+col;
 			r=buf[index*ps+roffset];
 			g=buf[index*ps+goffset];
 			b=buf[index*ps+boffset];
+			a=aoffset>=0? buf[index*ps+aoffset]:0xFF;
 			if(((row/blocksize)+(col/blocksize))%2==0)
 			{
 				if(row<halfway)
@@ -207,6 +211,7 @@
 					}
 				}
 			}
+			checkval255(a);
 		}
 	}