add support for latest Turing gpu and cuda 10

cmake/OpenCVDetectCUDA.cmake

@@ -81,6 +81,8 @@ if(CUDA_FOUND)
     set(__cuda_arch_bin "6.0 6.1")
   elseif(CUDA_GENERATION STREQUAL "Volta")
     set(__cuda_arch_bin "7.0")
+  elseif(CUDA_GENERATION STREQUAL "Turing")
+    set(__cuda_arch_bin "7.5")
   elseif(CUDA_GENERATION STREQUAL "Auto")
     execute_process( COMMAND "${CUDA_NVCC_EXECUTABLE}" ${CUDA_NVCC_FLAGS} "${OpenCV_SOURCE_DIR}/cmake/checks/OpenCVDetectCudaArch.cu" "--run"
                      WORKING_DIRECTORY "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/"
@@ -105,7 +107,7 @@ if(CUDA_FOUND)
                        ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
       if(NOT _nvcc_res EQUAL 0)
         message(STATUS "Automatic detection of CUDA generation failed. Going to build for all known architectures.")
-        set(__cuda_arch_bin "5.3 6.2 7.0")
+        set(__cuda_arch_bin "5.3 6.2 7.0 7.5")
       else()
         set(__cuda_arch_bin "${_nvcc_out}")
         string(REPLACE "2.1" "2.1(2.0)" __cuda_arch_bin "${__cuda_arch_bin}")
@@ -114,8 +116,10 @@ if(CUDA_FOUND)
     else()
       if(${CUDA_VERSION} VERSION_LESS "9.0")
         set(__cuda_arch_bin "2.0 3.0 3.5 3.7 5.0 5.2 6.0 6.1")
-      else()
+      elseif(${CUDA_VERSION} VERSION_LESS "10.0")
         set(__cuda_arch_bin "3.0 3.5 3.7 5.0 5.2 6.0 6.1 7.0")
+      else()
+        set(__cuda_arch_bin "3.0 3.5 3.7 5.0 5.2 6.0 6.1 7.0 7.5")
       endif()
     endif()
   endif()