Unroll loop in fbComposite_x888x8x8888()

diff --git a/pixman/pixman-mmx.c b/pixman/pixman-mmx.c
index 9ec0429..c738822 100644 (file)
--- 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);