NEON fast path for box blur

bench/BlurImageFilterBench.cpp

Index: bench/BlurImageFilterBench.cpp
diff --git a/bench/BlurImageFilterBench.cpp b/bench/BlurImageFilterBench.cpp
index c39573d8e84ae14df0e1618e9188c61180d90520..ef7492c688b8164e1b9cf68adff18e9bdc3f2af8 100644
--- a/bench/BlurImageFilterBench.cpp
+++ b/bench/BlurImageFilterBench.cpp
@@ -14,12 +14,13 @@
 #include "SkShader.h"
 #include "SkString.h"
 
-#define FILTER_WIDTH_SMALL  32
-#define FILTER_HEIGHT_SMALL 32
-#define FILTER_WIDTH_LARGE  256
-#define FILTER_HEIGHT_LARGE 256
-#define BLUR_SIGMA_SMALL    1.0f
-#define BLUR_SIGMA_LARGE    10.0f
+#define FILTER_WIDTH_SMALL    32
+#define FILTER_HEIGHT_SMALL   32
+#define FILTER_WIDTH_LARGE    256
+#define FILTER_HEIGHT_LARGE   256
+#define BLUR_SIGMA_SMALL      1.0f
+#define BLUR_SIGMA_LARGE      10.0f
+#define BLUR_SIGMA_SUPERLARGE 80.0f

[Stephen White, 2013/12/19 15:27:03]

Nit: SUPERLARGE -> HUGE

[zheng.xu, 2013/12/20 04:29:54]

Done.

 
 class BlurImageFilterBench : public SkBenchmark {
 public:
@@ -92,3 +93,5 @@ DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, tr
 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false);)
 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true);)
 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false);)
+DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SUPERLARGE, BLUR_SIGMA_SUPERLARGE, true);)
+DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SUPERLARGE, BLUR_SIGMA_SUPERLARGE, false);)