Updated OpenVX detector and wrappers to handle Reference attribute names change

3rdparty/openvx/hal/openvx_hal.cpp

@@ -11,6 +11,7 @@
 #include <cfloat>
 #include <climits>
 #include <cmath>
+#include <cstring>
 
 //==================================================================================================
 // utility
@@ -1076,7 +1077,7 @@ int ovx_hal_integral(int depth, int sdepth, int, const uchar * a, size_t astep,
             ib = ivx::Image::createFromHandle(ctx, VX_DF_IMAGE_U32,
                 ivx::Image::createAddressing(w, h, 4, (vx_int32)bstep), (unsigned int *)(b + bstep + sizeof(unsigned int)));
         ivx::IVX_CHECK_STATUS(vxuIntegralImage(ctx, ia, ib));
-        memset(b, 0, (w + 1) * sizeof(unsigned int));
+        std::memset(b, 0, (w + 1) * sizeof(unsigned int));
         b += bstep;
         for (int i = 0; i < h; i++, b += bstep)
         {

3rdparty/openvx/include/ivx.hpp

@@ -32,6 +32,12 @@ static const vx_enum VX_INTERPOLATION_NEAREST_NEIGHBOR = VX_INTERPOLATION_TYPE_N
 static const vx_enum VX_BORDER_CONSTANT = VX_BORDER_MODE_CONSTANT;
 static const vx_enum VX_BORDER_REPLICATE = VX_BORDER_MODE_REPLICATE;
 
+#else
+
+    #ifdef IVX_RENAMED_REFS
+        static const vx_enum VX_REF_ATTRIBUTE_TYPE = VX_REFERENCE_TYPE;
+    #endif
+
 #endif
 
 #ifndef IVX_USE_CXX98

cmake/FindOpenVX.cmake

@@ -25,6 +25,20 @@ endif()
 
 if(OPENVX_INCLUDE_DIR AND OPENVX_LIBRARIES)
   set(HAVE_OPENVX TRUE)
+
+  try_compile(OPENVX_RENAMED_REF
+      "${OpenCV_BINARY_DIR}"
+      "${OpenCV_SOURCE_DIR}/cmake/checks/openvx_refenum_test.cpp"
+      CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${OPENVX_INCLUDE_DIR}"
+      LINK_LIBRARIES ${OPENVX_LIBRARIES}
+      OUTPUT_VARIABLE OUTPUT
+  )
+  if(OPENVX_RENAMED_REF)
+      add_definitions(-DIVX_RENAMED_REFS=1)
+      message(STATUS "OpenVX: Checking reference attribute name convention... New")
+  else()
+      message(STATUS "OpenVX: Checking reference attribute name convention... Old")
+  endif()
 endif()
 
 if(NOT HAVE_OPENVX)

cmake/checks/openvx_refenum_test.cpp

@@ -0,0 +1,5 @@
+#include <VX/vx.h>
+int main()
+{
+    return VX_REFERENCE_COUNT == VX_REFERENCE_TYPE ? VX_REFERENCE_NAME : 0;
+}