From 5ebf066dd529aa496c1954f66e8cd89378eb3448 Mon Sep 17 00:00:00 2001
From: Vitaly Tuzov <terfendail@mediana.jetos.com>
Date: Tue, 14 Mar 2017 15:24:21 +0300
Subject: [PATCH] Updated OpenVX detector and wrappers to handle Reference
 attribute names change

---
 3rdparty/openvx/hal/openvx_hal.cpp   |  3 ++-
 3rdparty/openvx/include/ivx.hpp      |  6 ++++++
 cmake/FindOpenVX.cmake               | 14 ++++++++++++++
 cmake/checks/openvx_refenum_test.cpp |  5 +++++
 4 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 cmake/checks/openvx_refenum_test.cpp

diff --git a/3rdparty/openvx/hal/openvx_hal.cpp b/3rdparty/openvx/hal/openvx_hal.cpp
index 2999f929c5..cc3e034b3a 100644
--- a/3rdparty/openvx/hal/openvx_hal.cpp
+++ b/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)
         {
diff --git a/3rdparty/openvx/include/ivx.hpp b/3rdparty/openvx/include/ivx.hpp
index 47213e6d5c..5c3029d617 100644
--- a/3rdparty/openvx/include/ivx.hpp
+++ b/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
diff --git a/cmake/FindOpenVX.cmake b/cmake/FindOpenVX.cmake
index 0a55e951d8..6cba52717c 100644
--- a/cmake/FindOpenVX.cmake
+++ b/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)
diff --git a/cmake/checks/openvx_refenum_test.cpp b/cmake/checks/openvx_refenum_test.cpp
new file mode 100644
index 0000000000..f28db050cb
--- /dev/null
+++ b/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;
+}