Rootless: Pulled in changes from fb{Blt,Fill} into rl{Blt,Fill}

(cherry picked from commit 3f857e129df7ce492191e0c51b8e53eaf6179366)
(cherry picked from commit 70374a58937d7a6f01c210bd6ac66cafb63e895a)

miext/rootless/accel/rlBlt.c

@@ -32,10 +32,22 @@
 #endif
 
 #include <stddef.h> /* For NULL */
+#include <string.h>
 #include "fb.h"
 #include "rootlessCommon.h"
 #include "rlAccel.h"
 
+#define InitializeShifts(sx,dx,ls,rs) { \
+    if (sx != dx) { \
+	if (sx > dx) { \
+	    ls = sx - dx; \
+	    rs = FB_UNIT - ls; \
+	} else { \
+	    rs = dx - sx; \
+	    ls = FB_UNIT - rs; \
+	} \
+    } \
+}
 
 void
 rlBlt (FbBits   *srcLine,
@@ -74,6 +86,29 @@ rlBlt (FbBits   *srcLine,
 	return;
     }
 #endif
+
+    if (alu == GXcopy && pm == FB_ALLONES && !reverse &&
+            !(srcX & 7) && !(dstX & 7) && !(width & 7)) {
+        int i;
+        CARD8 *src = (CARD8 *) srcLine;
+        CARD8 *dst = (CARD8 *) dstLine;
+        
+        srcStride *= sizeof(FbBits);
+        dstStride *= sizeof(FbBits);
+        width >>= 3;
+        src += (srcX >> 3);
+        dst += (dstX >> 3);
+
+        if (!upsidedown)
+            for (i = 0; i < height; i++)
+                memcpy(dst + i * dstStride, src + i * srcStride, width);
+        else
+            for (i = height - 1; i >= 0; i--)
+                memcpy(dst + i * dstStride, src + i * srcStride, width);
+
+        return;
+    }
+
     FbInitializeMergeRop(alu, pm);
     destInvarient = FbDestInvarientMergeRop();
     if (upsidedown)
@@ -326,8 +361,11 @@ rlBlt (FbBits   *srcLine,
 		if (startmask)
 		{
 		    bits = FbScrLeft(bits1, leftShift); 
-		    bits1 = *src++;
+		    if (FbScrLeft(startmask, rightShift))
-		    bits |= FbScrRight(bits1, rightShift);
+		    {
+			bits1 = *src++;
+			bits |= FbScrRight(bits1, rightShift);
+		    }
 		    FbDoLeftMaskByteMergeRop (dst, bits, startbyte, startmask);
 		    dst++;
 		}

miext/rootless/accel/rlFill.c

@@ -89,7 +89,7 @@ rlFill (DrawablePtr pDrawable,
 		    dstBpp,
 		    
 		    (pGC->patOrg.x + pDrawable->x + dstXoff),
-		    pGC->patOrg.y + pDrawable->y + dstYoff - y);
+		    pGC->patOrg.y + pDrawable->y - y);
 	}
 	else
 	{
@@ -126,7 +126,7 @@ rlFill (DrawablePtr pDrawable,
 		       fgand, fgxor,
 		       bgand, bgxor,
 		       pGC->patOrg.x + pDrawable->x + dstXoff,
-		       pGC->patOrg.y + pDrawable->y + dstYoff - y);
+		       pGC->patOrg.y + pDrawable->y - y);
 	}
 	break;
     }
@@ -154,7 +154,7 @@ rlFill (DrawablePtr pDrawable,
 		pPriv->pm,
 		dstBpp,
 		(pGC->patOrg.x + pDrawable->x + dstXoff) * dstBpp,
-		pGC->patOrg.y + pDrawable->y + dstYoff - y);
+		pGC->patOrg.y + pDrawable->y - y);
 	break;
     }
     }