add default clAmdFft and clAmdBlas path

cmake/OpenCVDetectOpenCL.cmake

@@ -2,18 +2,78 @@ if(APPLE)
   set(OPENCL_FOUND YES)
   set(OPENCL_LIBRARIES "-framework OpenCL")
 else()
-    #find_package(OpenCL QUIET)
+  find_package(OpenCL QUIET)
   if(WITH_OPENCLAMDFFT)
+    set(CLAMDFFT_SEARCH_PATH $ENV{CLAMDFFT_PATH})
+    if(NOT CLAMDFFT_SEARCH_PATH)
+      if(WIN32)
+        set( CLAMDFFT_SEARCH_PATH "C:\\Program Files (x86)\\AMD\\clAmdFft" )
+      endif()
+    endif()
+    set( CLAMDFFT_INCLUDE_SEARCH_PATH ${CLAMDFFT_SEARCH_PATH}/include )
+    if(UNIX)
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        set(CLAMDFFT_LIB_SEARCH_PATH /usr/lib)
+      else()
+        set(CLAMDFFT_LIB_SEARCH_PATH /usr/lib64)
+      endif()
+    else()
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        set(CLAMDFFT_LIB_SEARCH_PATH ${CLAMDFFT_SEARCH_PATH}\\lib32\\import)
+      else()
+        set(CLAMDFFT_LIB_SEARCH_PATH ${CLAMDFFT_SEARCH_PATH}\\lib64\\import)
+      endif()
+    endif()
     find_path(CLAMDFFT_INCLUDE_DIR
-                NAMES clAmdFft.h)
-            find_library(CLAMDFFT_LIBRARIES
-                NAMES clAmdFft.Runtime)
+      NAMES clAmdFft.h
+      PATHS ${CLAMDFFT_INCLUDE_SEARCH_PATH}
+      PATH_SUFFIXES clAmdFft
+      NO_DEFAULT_PATH)
+    find_library(CLAMDFFT_LIBRARY
+      NAMES clAmdFft.Runtime
+      PATHS ${CLAMDFFT_LIB_SEARCH_PATH}
+      NO_DEFAULT_PATH)
+    if(CLAMDFFT_LIBRARY)
+      set(CLAMDFFT_LIBRARIES ${CLAMDFFT_LIBRARY})
+    else()
+      set(CLAMDFFT_LIBRARIES "")
+    endif()
   endif()
   if(WITH_OPENCLAMDBLAS)
+    set(CLAMDBLAS_SEARCH_PATH $ENV{CLAMDBLAS_PATH})
+    if(NOT CLAMDBLAS_SEARCH_PATH)
+      if(WIN32)
+        set( CLAMDBLAS_SEARCH_PATH "C:\\Program Files (x86)\\AMD\\clAmdBlas" )
+      endif()
+    endif()
+    set( CLAMDBLAS_INCLUDE_SEARCH_PATH ${CLAMDBLAS_SEARCH_PATH}/include )
+    if(UNIX)
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        set(CLAMDBLAS_LIB_SEARCH_PATH /usr/lib)
+      else()
+        set(CLAMDBLAS_LIB_SEARCH_PATH /usr/lib64)
+      endif()
+    else()
+      if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+        set(CLAMDBLAS_LIB_SEARCH_PATH ${CLAMDBLAS_SEARCH_PATH}\\lib32\\import)
+      else()
+        set(CLAMDBLAS_LIB_SEARCH_PATH ${CLAMDBLAS_SEARCH_PATH}\\lib64\\import)
+      endif()
+    endif()
     find_path(CLAMDBLAS_INCLUDE_DIR
-                NAMES clAmdBlas.h)
-            find_library(CLAMDBLAS_LIBRARIES
-                NAMES clAmdBlas)
+      NAMES clAmdBlas.h
+      PATHS ${CLAMDBLAS_INCLUDE_SEARCH_PATH}
+      PATH_SUFFIXES clAmdBlas
+      NO_DEFAULT_PATH)
+    find_library(CLAMDBLAS_LIBRARY
+      NAMES clAmdBlas
+      PATHS ${CLAMDBLAS_LIB_SEARCH_PATH}
+      NO_DEFAULT_PATH)
+    if(CLAMDBLAS_LIBRARY)
+      set(CLAMDBLAS_LIBRARIES ${CLAMDBLAS_LIBRARY})
+    else()
+      set(CLAMDBLAS_LIBRARIES "")
+    endif()
   endif()
   # Try AMD/ATI Stream SDK
   if (NOT OPENCL_FOUND)