add universal hardware support check function

* use hasSIMD128 rather than calling checkHardwareSupport
  * add SIMD check in spartialgradient.cpp
  * add SIMD check in stereosgbm.cpp
  * add SIMD check in canny.cpp

modules/core/include/opencv2/core/hal/intrin_cpp.hpp

@@ -1772,6 +1772,17 @@ inline v_float32x4 v_matmul(const v_float32x4& v, const v_float32x4& m0,
 
 //! @}
 
+//! @name Check SIMD support
+//! @{
+//! @brief Check CPU capability of SIMD operation
+static inline bool hasSIMD128()
+{
+    return false;
+}
+
+//! @}
+
+
 }
 
 #endif

modules/core/include/opencv2/core/hal/intrin_neon.hpp

@@ -46,6 +46,7 @@
 #define OPENCV_HAL_INTRIN_NEON_HPP
 
 #include <algorithm>
+#include "opencv2/core/utility.hpp"
 
 namespace cv
 {
@@ -1218,6 +1219,16 @@ inline v_float16x4 v_cvt_f16(const v_float32x4& a)
 }
 #endif
 
+//! @name Check SIMD support
+//! @{
+//! @brief Check CPU capability of SIMD operation
+static inline bool hasSIMD128()
+{
+    return checkHardwareSupport(CV_CPU_NEON);
+}
+
+//! @}
+
 //! @endcond
 
 }

modules/core/include/opencv2/core/hal/intrin_sse.hpp

@@ -46,6 +46,7 @@
 #define OPENCV_HAL_SSE_HPP
 
 #include <algorithm>
+#include "opencv2/core/utility.hpp"
 
 #define CV_SIMD128 1
 #define CV_SIMD128_64F 1
@@ -1726,6 +1727,16 @@ inline v_float16x4 v_cvt_f16(const v_float32x4& a)
 }
 #endif
 
+//! @name Check SIMD support
+//! @{
+//! @brief Check CPU capability of SIMD operation
+static inline bool hasSIMD128()
+{
+    return checkHardwareSupport(CV_CPU_SSE2);
+}
+
+//! @}
+
 //! @endcond
 
 }