Moved the CUDA stuff into its own folder.

dlib/CMakeLists.txt

@@ -254,8 +254,8 @@ if (NOT TARGET dlib)
          threads/async.cpp
          timer/timer.cpp
          stack_trace.cpp
-         dnn/cpu_dlib.cpp
-         dnn/tensor_tools.cpp
+         cuda/cpu_dlib.cpp
+         cuda/tensor_tools.cpp
          )
 
       if(UNIX)
@@ -657,13 +657,13 @@ if (NOT TARGET dlib)
 
          if (CUDA_FOUND AND cudnn AND (NOT USING_OLD_VISUAL_STUDIO_COMPILER) AND cuda_test_compile_worked AND cudnn_test_compile_worked AND cudnn_include)
             set(source_files ${source_files} 
-               dnn/cuda_dlib.cu 
-               dnn/cudnn_dlibapi.cpp
-               dnn/cublas_dlibapi.cpp
-               dnn/cusolver_dlibapi.cu
-               dnn/curand_dlibapi.cpp
-               dnn/cuda_data_ptr.cpp
-               dnn/gpu_data.cpp
+               cuda/cuda_dlib.cu 
+               cuda/cudnn_dlibapi.cpp
+               cuda/cublas_dlibapi.cpp
+               cuda/cusolver_dlibapi.cu
+               cuda/curand_dlibapi.cpp
+               cuda/cuda_data_ptr.cpp
+               cuda/gpu_data.cpp
                )
             set(dlib_needed_libraries ${dlib_needed_libraries} 
                ${CUDA_CUBLAS_LIBRARIES} 

dlib/all/source.cpp

@@ -79,8 +79,8 @@
 #include "../gui_core/gui_core_kernel_2.cpp"
 #endif // DLIB_NO_GUI_SUPPORT
 
-#include "../dnn/cpu_dlib.cpp"
-#include "../dnn/tensor_tools.cpp"
+#include "../cuda/cpu_dlib.cpp"
+#include "../cuda/tensor_tools.cpp"
 
 #endif // DLIB_ISO_CPP_ONLY
 

dlib/cmake_utils/test_for_cuda/CMakeLists.txt

@@ -2,7 +2,7 @@
 cmake_minimum_required(VERSION 2.8.12)
 project(cuda_test)
 
-include_directories(../../dnn)
+include_directories(../../cuda)
 add_definitions(-DDLIB_USE_CUDA)
 
 # Override the FindCUDA.cmake setting to avoid duplication of host flags if using a toolchain:

dlib/cmake_utils/test_for_cudnn/CMakeLists.txt

@@ -14,6 +14,6 @@ include(find_cudnn.txt)
 
 if (cudnn_include AND cudnn)
    include_directories(${cudnn_include})
-   cuda_add_library(cudnn_test STATIC ../../dnn/cudnn_dlibapi.cpp ${cudnn} )
+   cuda_add_library(cudnn_test STATIC ../../cuda/cudnn_dlibapi.cpp ${cudnn} )
    enable_cpp11_for_target(cudnn_test)
 endif()