From 5122f2b28bfbf08479cc88ff9ddfeb371f92264f Mon Sep 17 00:00:00 2001
From: =?utf8?q?S=C3=B8ren=20Sandmann=20Pedersen?= <sandmann@redhat.com>
Date: Sat, 16 Jun 2007 14:56:25 -0400
Subject: [PATCH] Unroll loop in fbComposite_x888x8x8888()

---
 pixman/pixman-mmx.c | 75 +++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 62 insertions(+), 13 deletions(-)

diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index 9ec0429..c738822 100644
--- a/pixman/pixman-mmx.c
+++ b/pixman/pixman-mmx.c
@@ -1324,23 +1324,72 @@ fbCompositeSrc_x888x8x8888mmx (pixman_op_t op,
 	    src++;
 	}
 
-	while (w >= 2)
+	while (w >= 16)
 	{
+	    __m64 vd0 = *(__m64 *)(dst + 0);
+	    __m64 vd1 = *(__m64 *)(dst + 2);
+	    __m64 vd2 = *(__m64 *)(dst + 4);
+	    __m64 vd3 = *(__m64 *)(dst + 6);
+	    __m64 vd4 = *(__m64 *)(dst + 8);
+	    __m64 vd5 = *(__m64 *)(dst + 10);
+	    __m64 vd6 = *(__m64 *)(dst + 12);
+	    __m64 vd7 = *(__m64 *)(dst + 14);
+	    
+	    __m64 vs0 = *(__m64 *)(src + 0);
+	    __m64 vs1 = *(__m64 *)(src + 2);
+	    __m64 vs2 = *(__m64 *)(src + 4);
+	    __m64 vs3 = *(__m64 *)(src + 6);
+	    __m64 vs4 = *(__m64 *)(src + 8);
+	    __m64 vs5 = *(__m64 *)(src + 10);
+	    __m64 vs6 = *(__m64 *)(src + 12);
+	    __m64 vs7 = *(__m64 *)(src + 14);
 	    
-	    __m64 vd0 = *(__m64 *)(dst);
-	    __m64 vs0 = *(__m64 *)(src);
-
 	    vd0 = pack8888 (
-		in_over_full_src_alpha (expand8888 (vs0, 0), vmask, expand8888 (vd0, 0)),
-		in_over_full_src_alpha (expand8888 (vs0, 1), vmask, expand8888 (vd0, 1)));
-
-	    *(__m64 *)(dst) = vd0;
-
-	    w -= 2;
-	    dst += 2;
-	    src += 2;
+		in_over (expand8888 (vs0, 0), srca, vmask, expand8888 (vd0, 0)),
+		in_over (expand8888 (vs0, 1), srca, vmask, expand8888 (vd0, 1)));
+	    
+	    vd1 = pack8888 (
+		in_over (expand8888 (vs1, 0), srca, vmask, expand8888 (vd1, 0)),
+		in_over (expand8888 (vs1, 1), srca, vmask, expand8888 (vd1, 1)));
+	    
+	    vd2 = pack8888 (
+		in_over (expand8888 (vs2, 0), srca, vmask, expand8888 (vd2, 0)),
+		in_over (expand8888 (vs2, 1), srca, vmask, expand8888 (vd2, 1)));
+	    
+	    vd3 = pack8888 (
+		in_over (expand8888 (vs3, 0), srca, vmask, expand8888 (vd3, 0)),
+		in_over (expand8888 (vs3, 1), srca, vmask, expand8888 (vd3, 1)));
+	    
+	    vd4 = pack8888 (
+		in_over (expand8888 (vs4, 0), srca, vmask, expand8888 (vd4, 0)),
+		in_over (expand8888 (vs4, 1), srca, vmask, expand8888 (vd4, 1)));
+	    
+	    vd5 = pack8888 (
+		in_over (expand8888 (vs5, 0), srca, vmask, expand8888 (vd5, 0)),
+		in_over (expand8888 (vs5, 1), srca, vmask, expand8888 (vd5, 1)));
+
+            vd6 = pack8888 (
+		in_over (expand8888 (vs6, 0), srca, vmask, expand8888 (vd6, 0)),
+		in_over (expand8888 (vs6, 1), srca, vmask, expand8888 (vd6, 1)));
+
+	    vd7 = pack8888 (
+		in_over (expand8888 (vs7, 0), srca, vmask, expand8888 (vd7, 0)),
+		in_over (expand8888 (vs7, 1), srca, vmask, expand8888 (vd7, 1)));
+
+	    *(__m64 *)(dst + 0) = vd0;
+	    *(__m64 *)(dst + 2) = vd1;
+	    *(__m64 *)(dst + 4) = vd2;
+	    *(__m64 *)(dst + 6) = vd3;
+	    *(__m64 *)(dst + 8) = vd4;
+	    *(__m64 *)(dst + 10) = vd5;
+	    *(__m64 *)(dst + 12) = vd6;
+	    *(__m64 *)(dst + 14) = vd7;
+
+	    w -= 16;
+	    dst += 16;
+	    src += 16;
 	}
-
+	
 	while (w)
 	{
 	    __m64 s = load8888 (*src | 0xff000000);
-- 
2.7.4