added cv::remap to T-API

modules/core/src/ocl.cpp

@@ -1893,7 +1893,7 @@ Context2& Context2::getDefault()
         // First, try to retrieve existing context of the same type.
         // In its turn, Platform::getContext() may call Context2::create()
         // if there is no such context.
-        ctx.create(Device::TYPE_CPU);
+        ctx.create(Device::TYPE_ACCELERATOR);
         if(!ctx.p)
             ctx.create(Device::TYPE_DGPU);
         if(!ctx.p)

modules/core/src/umatrix.cpp

@@ -578,6 +578,7 @@ Mat UMat::getMat(int accessFlags) const
     u->currAllocator->map(u, accessFlags | ACCESS_READ);
     CV_Assert(u->data != 0);
     Mat hdr(dims, size.p, type(), u->data + offset, step.p);
+    hdr.flags = flags;
     hdr.u = u;
     hdr.datastart = u->data;
     hdr.data = hdr.datastart + offset;