Unroll loops in SkBlurMask for speedup on Windows (benchmarks should see
15% on interpolated blurs, 5-10% on simple blurs).
git-svn-id: http://skia.googlecode.com/svn/trunk@2755 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/core/SkTypes.h b/include/core/SkTypes.h
index 1ee25b1..51d8d18 100644
--- a/include/core/SkTypes.h
+++ b/include/core/SkTypes.h
@@ -216,6 +216,8 @@
*/
#define SkAlign4(x) (((x) + 3) >> 2 << 2)
+#define SkIsAlign4(x) (((x) & 3) == 0)
+
typedef uint32_t SkFourByteTag;
#define SkSetFourByteTag(a, b, c, d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))