Visual Studio上編譯ncnn


prerequisite

是為了在PC上熟悉ncnn的基本代碼,所以用Visual Studio來配置的。

期間用過VS2013(update5)/VS2015/VS2017,反正都是基於CMake生成一個.sln再開VS編譯,都能編譯通過。

個別細節在博客里可能有寫錯、寫漏,如果你覺得要吐槽歡迎在評論區貼出。

先裝了這些:

  • vs2015,注意勾選win10 SDK
  • cmake
  • git
  • opencv, 官網下載的3.x版本的是vs2015預編譯好的,或自己編譯

下載https://github.com/google/protobuf/archive/v3.4.0.zip並解壓

后續步驟都使用nmake來搞。注意幾點:

  • 依賴庫和主項目,要使用同樣的build type(Debug/Release)。這里都通過cmake的-DCMAKE_BUILD_TYPE=Release指定

    • vs2015: call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64

    • vs2017: call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat" amd64

  • 調用不同visual studio版本的nmake前,先調用vcvarsall.bat來臨時(只在當前cmd中)設定相關的環境變量。

  • 調用vcvarsall.bat最好是指定目標cpu架構,這里使用amd64

更多nmake參數內容見nmake官方文檔

下面以vs2015為例進行配置,vs2017簡要替換即可

compile protobuf

cd D:\lib\protobuf-3.4.0\build-vs2015

call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%cd%/install ^
    -Dprotobuf_BUILD_TESTS=OFF ^
    -Dprotobuf_MSVC_STATIC_RUNTIME=OFF ../cmake

nmake
nmake install

compile ncnn

cd D:\work\ncnn\build-vs2015

call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64

cmake -G "NMake Makefiles" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=%cd%/install ^
    -DProtobuf_INCLUDE_DIR=D:/lib/protobuf-3.4.0/build-vs2015/install/include ^
    -DProtobuf_LIBRARIES=D:/lib/protobuf-3.4.0/build-vs2015/install/lib/libprotobuf.lib ^
    -DProtobuf_PROTOC_EXECUTABLE=D:/lib/protobuf-3.4.0/build-vs2015/install/bin/protoc.exe ..

nmake
nmake install

compile ncnn examples

把<ncnn_root>/examples整個目錄拷貝到一個新的地方(比如d:/work/ncnn_examples),並修改新的CMakeLists.txt內容為:

cmake_minimum_required(VERSION 2.8.10)
project(ncnn-examples)

#set (CMAKE_CXX_STANDARD 11)

# 用於找到opencv編譯好的各種lib和頭文件
if (CMAKE_SYSTEM_NAME MATCHES "Windows")
    list(APPEND CMAKE_PREFIX_PATH "D:/work/opencv320/build")
elseif (CMAKE_SYSTEM_NAME MATCHES "Linux")
    list(APPEND CMAKE_PREFIX_PATH "/home/chris/work/gitdown/opencv-2.4.13/build")
endif (CMAKE_SYSTEM_NAME MATCHES "Windows")

find_package(OpenCV QUIET COMPONENTS core highgui imgproc imgcodecs)
if(NOT OpenCV_FOUND)
    find_package(OpenCV REQUIRED COMPONENTS core highgui imgproc)
endif()


find_package(OpenMP)
if(OpenMP_CXX_FOUND OR OPENMP_FOUND)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
endif()



# 用於找到ncnn編譯好的各種東西
include_directories(D:/work/ncnn/src)
include_directories(D:/work/ncnn/build-vs2015/src)
link_directories(D:/work/ncnn/build-vs2015/install/lib)



# for win32
add_definitions(-D_SCL_SECURE_NO_WARNINGS -D_CRT_SECURE_NO_DEPRECATE)


add_executable(squeezenet squeezenet.cpp)
target_link_libraries(squeezenet ncnn ${OpenCV_LIBS})

add_executable(fasterrcnn fasterrcnn.cpp)
target_link_libraries(fasterrcnn ncnn ${OpenCV_LIBS})

add_executable(yolov2 yolov2.cpp)
target_link_libraries(yolov2 ncnn ${OpenCV_LIBS})

add_subdirectory(ssd)

需要把squeezenet.cpp中添加頭文件#include <functional>

然后開始編譯:

cd D:\work\ncnn_examples\build-vs2015

cmake  ..  -G  "NMake Makefiles"  -DCMAKE_BUILD_TYPE=Release


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