[Demo&Doc][Windows]Add the document of windows compiled (#3626)

* test=develop, add the document of windows compiled

* test=develop, modify the x86 demo on windows

* test=develop, modify the name of windows batch file

* test=develop, fix the doc

docs/demo_guides/x86.md

 # PaddleLite使用X86预测部署
 
+## 一、Docker或者Linux环境
+
 Paddle-Lite 支持在Docker或Linux环境编译x86预测库。环境搭建参考[环境准备](../user_guides/source_compile)。
 
-## 编译
+### 编译
 
 1、 下载代码
 ```bash
@@ -22,7 +24,7 @@ cd Paddle-Lite
 # --with_log=OFF 关闭LOG信息输出
 ```
 
-## 编译结果说明
+### 编译结果说明
 
 x86编译结果位于 `build.lite.x86/inference_lite_lib`
 **具体内容**说明：
@@ -52,7 +54,7 @@ x86编译结果位于 `build.lite.x86/inference_lite_lib`
 
 
 
-## x86预测API使用示例
+### x86预测API使用示例
 
 1、`mobilenetv1_full`目录结构
 
@@ -60,7 +62,8 @@ x86编译结果位于 `build.lite.x86/inference_lite_lib`
 mobilenetv1_full/
 |-- CMakeLists.txt
 |-- build.sh
-`-- mobilenet_full_api.cc
+|-- build.bat
+-- mobilenet_full_api.cc
 ```
 
 本demo使用cmake构建`CMakeLists.txt`为cmake脚本，`mobilenet_full_api.cc`是x86示例的源代码、`build.sh`为编译的脚本。
@@ -156,3 +159,89 @@ int main(int argc, char** argv) {
 }
 
 ```
+
+## 二、Windows环境
+
+### 环境准备
+
+#### 编译环境需求
+
+- Windows 10 专业版
+  - 目前Windows暂不支持GPU编译
+- *Python 版本 2.7/3.5.1+/3.6/3.7 (64 bit)*
+- *pip 或 pip3 版本 9.0.1+ (64 bit)*
+- *Visual Studio 2015 Update3*
+
+#### 安装步骤
+
+1. cmake 需要3.15版本, 可在官网[下载](https://cmake.org/download/)，并添加到环境变量中。
+
+2. python 需要2.7 及以上版本, 可在官网[下载](https://www.python.org/download/releases/2.7/)。
+
+3. git可以在官网[下载](https://gitforwindows.org/)，并添加到环境变量中
+
+### 编译
+
+1、 下载代码
+
+```bash
+git clone https://github.com/PaddlePaddle/Paddle-Lite.git
+# 切换到release分支
+git checkout release/v2.6.0
+```
+2、 源码编译(需要按照提示输入对应的参数)
+
+```bash
+cd Paddle-Lite
+lite/tools/build_windows.bat 
+```
+
+### 编译结果说明
+
+x86编译结果位于 `build.lite.x86/inference_lite_lib`
+**具体内容**说明：
+
+1、 `cxx`文件夹：包含c++的库文件与相应的头文件
+
+- `include`  : 头文件
+- `lib` : 库文件
+  - 静态库文件：
+    - `libpaddle_api_full_bundled.lib`  ：full_api 静态库
+    - `libpaddle_api_light_bundled.lib` ：light_api 静态库
+
+2、 `third_party` 文件夹：依赖的第三方预测库mklml
+
+- mklml : Paddle-Lite预测库依赖的mklml数学库
+
+3、 `demo/cxx`文件夹：x86预测库的C++ 示例demo
+
+- `mobilenetv1_full` ：使用full_api 执行mobilenet_v1预测的C++ demo
+- `mobilenetv1_light` ：使用light_api 执行mobilenet_v1预测的C++ demo
+
+### x86预测API使用示例
+
+1、`mobilenetv1_full`目录结构
+
+```bash
+mobilenetv1_full/
+|-- CMakeLists.txt
+|-- build.sh
+|-- build.bat
+`-- mobilenet_full_api.cc
+```
+
+本demo使用cmake构建`CMakeLists.txt`为cmake脚本，`mobilenet_full_api.cc`是x86示例的源代码、`build.sh`为Linux x86编译的脚本，build.bat为windows x86编译脚本。
+
+2、demo使用方法
+
+``` bash
+# 1、编译
+cd mobilenetv1_full
+build.bat
+```
+编译结果为当前目录下的 `Release\mobilenet_full_api.exe `
+``` bash
+# 2、执行预测
+Release\\mobilenet_full_api.exe mobilenet_v1
+```
+下载并解压模型[`mobilenet_v1`](http://paddle-inference-dist.bj.bcebos.com/mobilenet_v1.tar.gz)到当前目录，执行以上命令进行预测。

lite/CMakeLists.txt

@@ -206,7 +206,6 @@ if (LITE_WITH_X86)
   if(WIN32)
         add_custom_target(publish_inference_x86_cxx_lib ${TARGET}
             COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/cxx/lib"
-            COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/bin"
             COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/cxx/include"
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/lite/api/paddle_api.h" "${INFER_LITE_PUBLISH_ROOT}/cxx/include"
             COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_SOURCE_DIR}/lite/api/paddle_place.h" "${INFER_LITE_PUBLISH_ROOT}/cxx/include"
@@ -223,10 +222,11 @@ if (LITE_WITH_X86)
         add_dependencies(publish_inference publish_inference_x86_cxx_lib)
 
         add_custom_target(publish_inference_x86_cxx_demos ${TARGET}
-            COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/third_party"
-            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_BINARY_DIR}/third_party/install" "${INFER_LITE_PUBLISH_ROOT}/third_party"
-            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_BINARY_DIR}/third_party/eigen3" "${INFER_LITE_PUBLISH_ROOT}/third_party"
+            COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/third_party/mklml"
+            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_BINARY_DIR}/third_party/install/mklml" "${INFER_LITE_PUBLISH_ROOT}/third_party/mklml"
             COMMAND ${CMAKE_COMMAND} -E make_directory "${INFER_LITE_PUBLISH_ROOT}/demo/cxx"
+            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_SOURCE_DIR}/lite/demo/cxx/x86_mobilenetv1_light_demo" "${INFER_LITE_PUBLISH_ROOT}/demo/cxx/mobilenetv1_light"
+            COMMAND ${CMAKE_COMMAND} -E copy_directory "${CMAKE_SOURCE_DIR}/lite/demo/cxx/x86_mobilenetv1_full_demo" "${INFER_LITE_PUBLISH_ROOT}/demo/cxx/mobilenetv1_full"
         )
         add_dependencies(publish_inference_x86_cxx_lib publish_inference_x86_cxx_demos)
         add_dependencies(publish_inference_x86_cxx_demos paddle_api_full_bundled eigen3)

lite/demo/cxx/x86_mobilenetv1_full_demo/CMakeLists.txt

@@ -6,16 +6,44 @@ set(TARGET mobilenet_full_api)
 set(LITE_DIR "${PROJECT_SOURCE_DIR}/../../../cxx")
 set(MKLML_DIR "${PROJECT_SOURCE_DIR}/../../../third_party/mklml/")
 
+if (WIN32)
+  add_definitions("/DGOOGLE_GLOG_DLL_DECL=")
+  option(MSVC_STATIC_CRT "use static C Runtime library by default" ON)
+  if (MSVC_STATIC_CRT)
+    set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} /bigobj /MTd")
+    set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} /bigobj /MT")
+    set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} /bigobj /MTd")
+    set(CMAKE_CXX_FLAGS_RELEASE   "${CMAKE_CXX_FLAGS_RELEASE} /bigobj /MT")
+  endif()
+endif()
+
 # 2. link mklml and Paddle-Lite directory
 link_directories(${LITE_DIR}/lib ${MKLML_DIR}/lib)
 include_directories(${LITE_DIR}/include/ ${MKLML_DIR}/include)
 
 # 3. compile options 
-add_definitions(-std=c++11 -g -O3 -pthread)
-set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR})
+if (NOT WIN32)
+  add_definitions(-std=c++11 -g -O3 -pthread)
+  set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR})
+endif()
 
 # 4.add executable output
 add_executable(${TARGET} ${TARGET}.cc)
-target_link_libraries(${TARGET} -lpaddle_full_api_shared)
-target_link_libraries(${TARGET} -liomp5)
-target_link_libraries(${TARGET} -ldl)
+if (WIN32)
+  set(MATH_LIB ${MKLML_DIR}/lib/mklml${CMAKE_STATIC_LIBRARY_SUFFIX}
+      ${MKLML_DIR}/lib/libiomp5md${CMAKE_STATIC_LIBRARY_SUFFIX})
+
+
+  target_link_libraries(${TARGET} libpaddle_api_full_bundled.lib)
+  target_link_libraries(${TARGET} shlwapi.lib)
+  target_link_libraries(${TARGET} ${MATH_LIB})
+
+   add_custom_command(TARGET ${TARGET} POST_BUILD
+       COMMAND ${CMAKE_COMMAND} -E copy ${MKLML_DIR}/lib/mklml.dll ${CMAKE_BINARY_DIR}/Release
+       COMMAND ${CMAKE_COMMAND} -E copy ${MKLML_DIR}/lib/libiomp5md.dll ${CMAKE_BINARY_DIR}/Release
+   )
+else()
+    target_link_libraries(${TARGET} -lpaddle_full_api_shared)
+    target_link_libraries(${TARGET} -liomp5)
+    target_link_libraries(${TARGET} -ldl)
+endif()

lite/demo/cxx/x86_mobilenetv1_full_demo/build.bat

+@echo off
+setlocal
+setlocal enabledelayedexpansion
+
+set source_path=%~dp0
+
+set build_directory=%source_path%\build
+
+if EXIST "%build_directory%" (
+    call:rm_rebuild_dir "%build_directory%"
+) 
+
+md "%build_directory%"
+set vcvarsall_dir=C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat
+
+IF NOT EXIST "%vcvarsall_dir%" (
+  goto set_vcvarsall_dir
+) else (
+  goto cmake
+)
+
+:set_vcvarsall_dir
+SET /P vcvarsall_dir="Please input the path of visual studio command Prompt, such as C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat   =======>"
+set tmp_var=!vcvarsall_dir!
+call:remove_space
+set vcvarsall_dir=!tmp_var!   
+IF NOT EXIST "!vcvarsall_dir!" (
+    echo "------------!vcvarsall_dir! not exist------------"
+    goto set_vcvarsall_dir
+)
+
+:cmake
+D:
+cd "%build_directory%"
+
+cmake ..   -G "Visual Studio 14 2015 Win64" -T host=x64
+
+call "%vcvarsall_dir%" amd64
+
+msbuild /maxcpucount:8 /p:Configuration=Release  mobilenet_full_api.vcxproj
+
+goto:eof
+
+:rm_rebuild_dir
+    del /f /s /q "%~1\*.*"  >nul 2>&1
+    rd /s /q  "%~1" >nul 2>&1
+goto:eof
+
+:remove_space
+:remove_left_space
+if "%tmp_var:~0,1%"==" " (
+    set "tmp_var=%tmp_var:~1%"
+    goto remove_left_space
+)
+
+:remove_right_space
+if "%tmp_var:~-1%"==" " (
+    set "tmp_var=%tmp_var:~0,-1%"
+    goto remove_left_space
+)
+goto:eof

lite/demo/cxx/x86_mobilenetv1_light_demo/CMakeLists.txt

@@ -6,16 +6,44 @@ set(TARGET mobilenet_light_api)
 set(LITE_DIR "${PROJECT_SOURCE_DIR}/../../../cxx")
 set(MKLML_DIR "${PROJECT_SOURCE_DIR}/../../../third_party/mklml/")
 
+if (WIN32)
+  add_definitions("/DGOOGLE_GLOG_DLL_DECL=")
+  option(MSVC_STATIC_CRT "use static C Runtime library by default" ON)
+  if (MSVC_STATIC_CRT)
+    set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} /bigobj /MTd")
+    set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} /bigobj /MT")
+    set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} /bigobj /MTd")
+    set(CMAKE_CXX_FLAGS_RELEASE   "${CMAKE_CXX_FLAGS_RELEASE} /bigobj /MT")
+  endif()
+endif()
+
 # 2. link mklml and Paddle-Lite directory
 link_directories(${LITE_DIR}/lib ${MKLML_DIR}/lib)
 include_directories(${LITE_DIR}/include/ ${MKLML_DIR}/include)
 
 # 3. compile options 
-add_definitions(-std=c++11 -g -O3 -pthread)
-set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR})
+if (NOT WIN32)
+  add_definitions(-std=c++11 -g -O3 -pthread)
+  set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR})
+endif()
 
 # 4.add executable output
 add_executable(${TARGET} ${TARGET}.cc)
-target_link_libraries(${TARGET} -lpaddle_light_api_shared)
-target_link_libraries(${TARGET} -liomp5)
-target_link_libraries(${TARGET} -ldl)
+if (WIN32)
+  set(MATH_LIB ${MKLML_DIR}/lib/mklml${CMAKE_STATIC_LIBRARY_SUFFIX}
+      ${MKLML_DIR}/lib/libiomp5md${CMAKE_STATIC_LIBRARY_SUFFIX})
+
+
+  target_link_libraries(${TARGET} libpaddle_api_light_bundled.lib)
+  target_link_libraries(${TARGET} shlwapi.lib)
+  target_link_libraries(${TARGET} ${MATH_LIB})
+
+   add_custom_command(TARGET ${TARGET} POST_BUILD
+       COMMAND ${CMAKE_COMMAND} -E copy ${MKLML_DIR}/lib/mklml.dll ${CMAKE_BINARY_DIR}/Release
+       COMMAND ${CMAKE_COMMAND} -E copy ${MKLML_DIR}/lib/libiomp5md.dll ${CMAKE_BINARY_DIR}/Release
+   )
+else()
+    target_link_libraries(${TARGET} -lpaddle_light_api_shared)
+    target_link_libraries(${TARGET} -liomp5)
+    target_link_libraries(${TARGET} -ldl)
+endif()

lite/demo/cxx/x86_mobilenetv1_light_demo/build.bat

+@echo off
+setlocal
+setlocal enabledelayedexpansion
+
+set source_path=%~dp0
+
+set build_directory=%source_path%\build
+
+if EXIST "%build_directory%" (
+    call:rm_rebuild_dir "%build_directory%"
+) 
+
+md "%build_directory%"
+set vcvarsall_dir=C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat
+
+IF NOT EXIST "%vcvarsall_dir%" (
+  goto set_vcvarsall_dir
+) else (
+  goto cmake
+)
+
+:set_vcvarsall_dir
+SET /P vcvarsall_dir="Please input the path of visual studio command Prompt, such as C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat   =======>"
+set tmp_var=!vcvarsall_dir!
+call:remove_space
+set vcvarsall_dir=!tmp_var!   
+IF NOT EXIST "!vcvarsall_dir!" (
+    echo "------------!vcvarsall_dir! not exist------------"
+    goto set_vcvarsall_dir
+)
+
+:cmake
+D:
+cd "%build_directory%"
+
+cmake ..   -G "Visual Studio 14 2015 Win64" -T host=x64
+
+call "%vcvarsall_dir%" amd64
+
+msbuild /maxcpucount:8 /p:Configuration=Release  mobilenet_light_api.vcxproj
+
+goto:eof
+
+:rm_rebuild_dir
+    del /f /s /q "%~1\*.*"  >nul 2>&1
+    rd /s /q  "%~1" >nul 2>&1
+goto:eof
+
+:remove_space
+:remove_left_space
+if "%tmp_var:~0,1%"==" " (
+    set "tmp_var=%tmp_var:~1%"
+    goto remove_left_space
+)
+
+:remove_right_space
+if "%tmp_var:~-1%"==" " (
+    set "tmp_var=%tmp_var:~0,-1%"
+    goto remove_left_space
+)
+goto:eof

lite/tools/build.bat → lite/tools/build_windows.bat

@@ -29,16 +29,17 @@ IF NOT EXIST "%vcvarsall_dir%" (
 
 call:prepare_thirdparty
 
-if EXIST "%build_directory%" (
-    call:rm_rebuild_dir "%build_directory%"
-    md "%build_directory%"
-) 
-
 set root_dir=%workspace%
 set build_directory=%BUILD_DIR%\build.lite.x86
 set GEN_CODE_PATH_PREFIX=%build_directory%\lite\gen_code
 set DEBUG_TOOL_PATH_PREFIX=%build_directory%\lite\tools\debug
 
+if EXIST "%build_directory%" (
+    call:rm_rebuild_dir "%build_directory%"
+) 
+
+md "%build_directory%"
+
 rem for code gen, a source file is generated after a test, but is dependended by some targets in cmake.
 rem here we fake an empty file to make cmake works.
 if NOT EXIST "%GEN_CODE_PATH_PREFIX%" (